U.S. patent application number 16/336096 was filed with the patent office on 2019-07-11 for cartridge and electronic cigarette having same.
The applicant listed for this patent is JOYETECH EUROPE HOLDING GMBH. Invention is credited to WEIHUA QIU.
Application Number | 20190208825 16/336096 |
Document ID | / |
Family ID | 61689830 |
Filed Date | 2019-07-11 |
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United States Patent
Application |
20190208825 |
Kind Code |
A1 |
QIU; WEIHUA |
July 11, 2019 |
CARTRIDGE AND ELECTRONIC CIGARETTE HAVING SAME
Abstract
A cartridge and an electronic cigarette having the cartridge are
disclosed. The cartridge includes a top wall and a peripheral wall.
The top wall and the peripheral wall surrounds a liquid storage
chamber of the cartridge. The peripheral wall is defined with an
air inflow passage and a smoke outflow passage. The air inflow
passage is located at one side of the peripheral wall, and the
smoke outflow passage is located at the other side of the
peripheral wall opposite to the air inflow passage.
Inventors: |
QIU; WEIHUA; (Changzhou
City, Jiangsu Province, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
JOYETECH EUROPE HOLDING GMBH |
Zug |
|
CH |
|
|
Family ID: |
61689830 |
Appl. No.: |
16/336096 |
Filed: |
September 27, 2017 |
PCT Filed: |
September 27, 2017 |
PCT NO: |
PCT/CN2017/103701 |
371 Date: |
March 22, 2019 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A24F 47/00 20130101;
A24F 40/10 20200101; A24F 40/42 20200101; A24F 47/008 20130101;
A24F 40/485 20200101 |
International
Class: |
A24F 47/00 20060101
A24F047/00 |
Foreign Application Data
Date |
Code |
Application Number |
Sep 22, 2016 |
CN |
201610847097.9 |
Claims
1. An electronic cigarette comprising a cartridge and an atomizing
assembly, the cartridge having a liquid storage chamber, a bottom
end of the liquid storage chamber being open, the atomizing
assembly comprising an atomizing head, wherein the cartridge
comprises a top wall and a peripheral wall, the top wall and the
peripheral wall surrounds the liquid storage chamber, the
peripheral wall is provided with an air inflow passage on one side
of the cartridge, the peripheral wall is provided with a smoke
outflow passage on the other side of the cartridge, the atomizing
head is disposed at a bottom side of the cartridge, the atomizing
head has an atomizing channel, one end of the atomizing channel
communicates with the air inflow passage, the other end of the
atomizing channel communicates with the smoke outflow passage, an
outer wall of the atomizing head is provided with a liquid inlet
hole, the liquid inlet hole communicates with the liquid storage
chamber, the cigarette liquid in the liquid storage chamber flows
through the liquid inlet hole into the atomizing channel to be
atomized into smoke.
2. The electronic cigarette according to claim 1, wherein a top end
of the liquid storage chamber is closed, the air inflow passage
extends axially from a bottom end of the peripheral wall to a
preset height, the peripheral wall correspondingly defines an air
inlet hole which communicates with a top end of the air inflow
passage.
3. The electronic cigarette according to claim 1, wherein the smoke
outflow passage extends axially from a bottom end of the peripheral
wall to a top end of the peripheral wall and penetrates the top end
and the bottom end of the peripheral wall.
4. The electronic cigarette according to claim 1, wherein the
peripheral wall or the top wall is defined with a liquid injection
hole.
5. The electronic cigarette according to claim 2, wherein an air
guiding tab is provided at a bottom surface of the peripheral wall
of the cartridge corresponding to an outlet of the air inflow
passage and an inlet of the smoke outflow passage, the two air
guiding tabs are oppositely disposed, the airflow flowing out from
the air inflow passage is guided by the air guiding tab to the
smoke outflow passage, and the airflow is then guided into the
smoke outflow passage by the air guiding tab of the smoke outflow
passage.
6. The electronic cigarette according to claim 1, wherein a liquid
retaining ring is sleeved on each of two ends of an outer wall of
the atomizing head, a plurality of liquid inlet holes are formed in
the outer wall of the atomizing head between the two liquid
retaining rings, the atomizing head comprises a first casing
disposed at one end, a second casing disposed at the other end, and
an insulating member disposed between the first casing and the
second casing, the atomizing head further comprises a heating
member and a liquid absorbing member, the liquid absorbing member
is wrapped around an outer periphery of the heating member, and
together mounted in an inner chamber of the first casing.
7. The electronic cigarette according to claim 1, further
comprising a housing, the housing comprising an upper housing and a
lower housing matched with the upper housing, a latching hole is
formed at a connecting portion between the upper housing and the
lower housing, an upper end of the cartridge is installed in the
upper housing, a lower end of the cartridge and the atomizing
assembly are mounted in the lower housing.
8. The electronic cigarette according to claim 1, wherein two ends
of the atomizing channel of the atomizing head are respectively
aligned with an outlet of the air inflow passage and an inlet of
the smoke outflow passage; the air inflow passage, the smoke
outflow passage and the atomizing channel cooperatively form a
U-shaped airflow passage which surrounds the liquid storage chamber
of the cartridge.
9. The electronic cigarette according to claim 8, further
comprising a control assembly, wherein the control assembly
comprises a mounting bracket, the mounting bracket is formed with a
partition wall adjacent to the atomizing head, the mounting bracket
is mounted with a sensor, the partition wall is provided with a
suction sensing channel, the suction sensing channel communicates
the airflow passage of the electronic cigarette with the
sensor.
10. The electronic cigarette according to claim 9, wherein the
control assembly comprises a pole contacting member, the mounting
bracket is mounted with a circuit board, the partition wall is
provided with a mounting hole, the pole contacting member is
mounted in the mounting hole (412) for electrically connecting the
circuit board with the atomizing head.
11. A cartridge, wherein the cartridge comprises a top wall and a
peripheral wall, the top wall and the peripheral wall surrounds a
liquid storage chamber, the peripheral wall is defined with an air
inflow passage and a smoke outflow passage, the air inflow passage
is located at one side of the peripheral wall, and the smoke
outflow passage is located at the other side of the peripheral wall
opposite to the air inflow passage.
12. The cartridge according to claim 11, wherein a bottom end of
the liquid storage chamber is open.
13. The cartridge according to claim 11, wherein the peripheral
wall or the top wall is defined with a liquid injection hole.
14. The cartridge according to claim 11, wherein the peripheral
wall is defined with an air inlet hole, and the air inlet hole
communicates with the air inflow passage.
15. The cartridge according to claim 11, wherein the smoke outflow
passage extends axially from a bottom end of the peripheral wall to
a top end of the peripheral wall and penetrates the top end and the
bottom end of the peripheral wall.
16. The cartridge according to claim 11, wherein the air inflow
passage extends axially from a bottom end of the peripheral wall to
a preset height.
17. An electronic cigarette comprising the cartridge according to
claim 11.
18. The electronic cigarette according to claim 17, further
comprising a housing, wherein the cartridge is mounted in the
housing, and the housing has a smoke exhaust hole at a top end
thereof.
19. The electronic cigarette according to claim 17, further
comprising an atomizing assembly, wherein the atomizing assembly
comprises an atomizing head, an atomizing channel is defined in the
atomizing head, one end of the atomizing channel communicates with
the air inflow passage, the other end of the atomizing channel
communicates with the smoke outflow passage, an outer wall of the
atomizing head is defined with a liquid inlet hole, and the liquid
inlet hole communicates with the liquid storage chamber.
20. The electronic cigarette according to claim 17, further
comprising a suction sensing channel and a sensor, wherein the air
inflow passage, the smoke outflow passage and the atomizing channel
cooperatively form an airflow passage of the electronic cigarette,
two ends of the suction sensing channel are communicated with the
sensor and the airflow passage, respectively.
Description
TECHNICAL FIELD
[0001] The present invention relates to the technical field of
electronic cigarette, and more particularly to an improved
cartridge and an electronic cigarette having same.
BACKGROUND
[0002] The air intake system of existing electronic cigarette is
basically a vertical up and down air intake mode, and the atomizing
head of the electronic cigarette is inserted into the liquid
storage chamber of the cartridge, so as to provide cigarette liquid
to the atomizing head, which is inconvenient for the replacement of
the atomizing head. Further, the air intake mode of the existing
electronic cigarette is that the air inlet hole of the electronic
cigarette is formed at the bottom of the housing of the electronic
cigarette. However, the air inlet hole at the bottom is easy to
cause leakage of the cigarette liquid when inhaling.
SUMMARY
[0003] In view of the above, in order to meet the needs of the
market, it is necessary to provide an electronic cigarette to
facilitate replacement of the atomizing head and to avoid leakage
of the cigarette liquid when inhaling.
[0004] A first aspect of the present invention provides an
electronic cigarette which includes a cartridge and an atomizing
assembly. The cartridge has a liquid storage chamber. A bottom end
of the liquid storage chamber is open. The atomizing assembly
includes an atomizing head. The cartridge includes a top wall and a
peripheral wall. The top wall and the peripheral wall surrounds the
liquid storage chamber. The peripheral wall is provided with an air
inflow passage at one side of the cartridge. The peripheral wall is
provided with a smoke outflow passage at the other side of the
cartridge. The atomizing head is disposed at a bottom side of the
cartridge. The atomizing head has an atomizing channel, one end of
the atomizing channel communicates with the air inflow passage, the
other end of the atomizing channel communicates with the smoke
outflow passage. An outer wall of the atomizing head is provided
with a liquid inlet hole. The liquid inlet hole communicates with
the liquid storage chamber. The cigarette liquid in the liquid
storage chamber flows through the liquid inlet hole into the
atomizing channel to be atomized into smoke.
[0005] In one embodiment, a top end of the liquid storage chamber
is closed. The air inflow passage extends axially from a bottom end
of the peripheral wall to a preset height. The peripheral wall
correspondingly defines an air inlet hole which communicates with a
top end of the air inflow passage.
[0006] In one embodiment, the smoke outflow passage extends axially
from a bottom end of the peripheral wall to a top end of the
peripheral wall and penetrates the top end and the bottom end of
the peripheral wall.
[0007] In one embodiment, the peripheral wall or the top wall is
defined with a liquid injection hole.
[0008] In one embodiment, an air guiding tab is provided at a
bottom surface of the peripheral wall of the cartridge
corresponding to an outlet of the air inflow passage and an inlet
of the smoke outflow passage. The two air guiding tabs are
oppositely disposed. The airflow flowing out from the air inflow
passage is guided by the air guiding tab to the smoke outflow
passage, and the airflow is then guided into the smoke outflow
passage by the air guiding tab of the smoke outflow passage.
[0009] In one embodiment, a liquid retaining ring is sleeved on
each of two ends of an outer wall of the atomizing head. A
plurality of liquid inlet holes are formed in the outer wall of the
atomizing head between the two liquid retaining rings. The
atomizing head includes a first casing disposed at one end, a
second casing disposed at the other end, and an insulating member
disposed between the first casing and the second casing. The
atomizing head further includes a heating member and a liquid
absorbing member. The liquid absorbing member is wrapped around an
outer periphery of the heating member, and together mounted in an
inner chamber of the first casing.
[0010] In one embodiment, the electronic cigarette further includes
a housing. The housing includes an upper housing and a lower
housing matched with the upper housing. A latching hole is formed
at a connecting portion between the upper housing and the lower
housing. An upper end of the cartridge is installed in the upper
housing, a lower end of the cartridge and the atomizing assembly
are mounted in the lower housing.
[0011] In one embodiment, two ends of the atomizing channel of the
atomizing head are respectively aligned with an outlet of the air
inflow passage and an inlet of the smoke outflow passage. The air
inflow passage, the smoke outflow passage and the atomizing channel
cooperatively form a U-shaped airflow passage which surrounds the
liquid storage chamber of the cartridge.
[0012] In one embodiment, the electronic cigarette further includes
a control assembly. The control assembly includes a mounting
bracket. The mounting bracket is formed with a partition wall
adjacent to the atomizing head. The mounting bracket is mounted
with a sensor. The partition wall is provided with a suction
sensing channel. The suction sensing channel communicates the
airflow passage of the electronic cigarette with the sensor.
[0013] In one embodiment, the control assembly includes a pole
contacting member. The mounting bracket is mounted with a circuit
board. The partition wall is provided with a mounting hole. The
pole contacting member is mounted in the mounting hole for
electrically connecting the circuit board with the atomizing
head.
[0014] A second aspect of the present invention provides a
cartridge which includes a top wall and a peripheral wall. The top
wall and the peripheral wall surrounds a liquid storage chamber.
The peripheral wall is defined with an air inflow passage and a
smoke outflow passage. The air inflow passage is located at one
side of the peripheral wall, and the smoke outflow passage is
located at the other side of the peripheral wall opposite to the
air inflow passage.
[0015] In one embodiment, a bottom end of the liquid storage
chamber is open.
[0016] In one embodiment, the peripheral wall or the top wall is
defined with a liquid injection hole.
[0017] In one embodiment, the peripheral wall is defined with an
air inlet hole, and the air inlet hole communicates with the air
inflow passage.
[0018] In one embodiment, the smoke outflow passage extends axially
from a bottom end of the peripheral wall to a top end of the
peripheral wall and penetrates the top end and the bottom end of
the peripheral wall.
[0019] In one embodiment, the air inflow passage extends axially
from a bottom end of the peripheral wall to a preset height.
[0020] A third aspect of the present invention provides an
electronic cigarette which includes the cartridge of any one
according to the second aspect of the present invention.
[0021] In one embodiment, the electronic cigarette further includes
a housing. The cartridge is mounted in the housing, and the housing
has a smoke exhaust hole at a top end thereof.
[0022] In one embodiment, the electronic cigarette further includes
an atomizing assembly. The atomizing assembly includes an atomizing
head. An atomizing channel is defined in the atomizing head, one
end of the atomizing channel communicates with the air inflow
passage, and the other end of the atomizing channel communicates
with the smoke outflow passage. An outer wall of the atomizing head
is defined with a liquid inlet hole, and the liquid inlet hole
communicates with the liquid storage chamber.
[0023] In one embodiment, the electronic cigarette further includes
a suction sensing channel and a sensor. The air inflow passage, the
smoke outflow passage and the atomizing channel cooperatively form
an airflow passage of the electronic cigarette. Two ends of the
suction sensing channel are communicated with the sensor and the
airflow passage, respectively.
[0024] Compared with the prior art, the electronic cigarette
provided by the invention utilizes the peripheral wall of the
cartridge for air inflow and outflow. It is thus not required to
additionally provide a sleeve for air inflow and outflow, to save
material and save cost. Further, the liquid storage chamber, the
air inflow passage and the smoke outflow passage are integrated,
thereby reducing the difficulty of assembling, saving the internal
space of the electronic cigarette to the greatest extent and
further reducing the volume of the electronic cigarette. In one
embodiment, the atomizing head is disposed under the cartridge
without being inserted into an interior of the cartridge, further
solving the problem that the atomizing head of the existing
electronic cigarette needs to be inserted into the interior of the
cartridge. In one embodiment, the air intake mode is a surrounding
type air intake mode, and the surrounding type air intake mode
solves the problem that the air inlet hole of the existing
electronic cigarette is defined at the bottom of the housing of the
electronic cigarette, and the air inlet hole at the bottom is easy
to cause the leakage problem when inhaling. Also, the airflow is
smoother and the suction effect is better.
[0025] Preferred embodiments of the present invention and its
advantageous effects will be further described in detail in
conjunction with the specific embodiments.
BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The drawings are intended to provide a further understanding
of the present invention and form part of the specification for
explaining the invention in conjunction with the following specific
embodiments, but shall not constitute a limitation on the
invention. In the drawing:
[0027] FIG. 1 is a perspective view of an electronic cigarette
according to a preferred embodiment of the present invention;
[0028] FIG. 2 is a cross-sectional view of the electronic cigarette
shown in FIG. 1;
[0029] FIG. 3 is a perspective view of the cartridge of the
electronic cigarette shown in FIG. 1;
[0030] FIG. 4 is a side view of the cartridge of the electronic
cigarette shown in FIG. 3;
[0031] FIG. 5 is a cross-sectional view of the cartridge along line
B-B shown in FIG. 4;
[0032] FIG. 6 is a perspective view of an atomizing head of an
electronic cigarette according to a preferred embodiment of the
present invention;
[0033] FIG. 7 is a cross-sectional view of the atomizing head shown
in FIG. 6;
[0034] FIG. 8 is a front view of an atomizing head of an electronic
cigarette according to another preferred embodiment of the present
invention.
NAMES OF COMPONENTS AND REFERENCE SIGNS
TABLE-US-00001 [0035] housing 10 latching block 26 upper housing 11
liquid filling plug 27 lower housing 12 air guiding tab 28 latching
hole 13 atomizing head 31 slot 14 atomizing head sleeve 32
cartridge 20 control assembly 40 top wall 21 mounting bracket 41
peripheral wall 22 circuit board 42 liquid storage chamber 23 pole
contacting member 43 air inlet hole 24 sensor 44 liquid injection
hole 25 smoke exhaust hole 111 atomizing assembly 30 center line
201 power source 45 insulating member 313 air intake hole 121
electrical connecting leg 314 USB interface 123 atomizing channel
315 cutout 202 liquid absorbing member 317 clip 203 liquid
retaining ring 318 protrusion 204 liquid passing hole 321 air
inflow passage 221 pole connecting hole 322 smoke outflow passage
222 partition wall 411 smoke outlet hole 223 mounting hole 412
first casing 311 suction sensing channel 413 second casing 312 USB
slot 421 heating member 316 liquid inlet hole 3111
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
[0036] The specific embodiments of the present invention will be
described in detail below with reference to the accompanying
drawings. It is to be understood that the specific embodiments
described herein are merely illustrative and not restrictive.
[0037] Referring to FIG. 1 and FIG. 2, the present invention
provides an electronic cigarette including a housing 10, a
cartridge 20 mounted in the housing 10, an atomizing assembly 30,
and a control assembly 40. The cartridge 20 is mounted at the upper
end of the housing 10 for providing cigarette liquid to the
atomizing assembly 30. The atomizing assembly 30 is mounted at the
bottom side of the cartridge 20 for atomizing the inflowing
cigarette liquid. Optionally, the control assembly 40 is mounted at
the bottom side of the atomizing assembly 30 for supplying power to
the atomizing assembly 30 and controlling the start and/or stop of
atomization in a timely manner.
[0038] The housing 10 includes an upper housing 11 and a lower
housing 12 matched with the upper housing. The connecting portion
of the upper housing 11 and the lower housing 12 is formed with a
latching hole 13 for alignment when the cartridge 20 is installed
in the upper housing 11 and the lower housing 12. In this
embodiment, two latching holes 13 are oppositely disposed at the
connecting portion between the upper housing 11 and the lower
housing 12 for quick assembly of the cartridge 20. The upper
housing 11 is shorter than the lower housing 12, and the upper
housing 11 is located at the upper end of the housing 10. In one
embodiment, the upper housing 11 can be regarded as a cap, and the
top end thereof is provided with a smoke exhaust hole 111 for the
smoke to be exhausted. Optionally, the smoke exhaust hole 111 can
be connected to a mouthpiece (not shown). The upper end of the
cartridge 20 is installed in the upper housing 11, and a portion of
the cartridge 20 can extend out of the upper housing 11. The upper
housing 11 is further formed with a slot 14 for the cartridge 20 to
be snapped, so that the cartridge 20 can be stably held in the
upper housing 11. In one embodiment, the lower housing 12 can be
regarded as a main body, and an air intake hole 121 and a USB
interface 123 are defined in a peripheral wall thereof. The
atomizing assembly 30, the control assembly 40 and the lower end of
the cartridge 20 are mounted in the lower housing 12. Since the
housing 10 has a structure that is formed by cooperating the upper
housing 11 with the lower housing 12, it is facilitated to assemble
and disassemble the cartridge 20 and the atomizing assembly 30 in
the electronic cigarette.
[0039] Referring to FIG. 3, FIG. 4, and FIG. 5, the cartridge 20
includes a top wall 21 and a peripheral wall 22, and the top wall
21 and the peripheral wall 22 cooperates to define a liquid storage
chamber 23 therein. The liquid storage chamber 23 is closed at the
top end, with an opening at the bottom end. In one embodiment, the
opening may be a whole through hole or consisted of a plurality of
small through holes. An air inflow passage 221 and a smoke outflow
passage 222 are formed axially in the peripheral wall 22 of the
cartridge 20. The air inflow passage 221 is located at one side of
the peripheral wall 22 of the cartridge, and the smoke outflow
passage 222 is located at the other side of the peripheral wall 22
opposite to the air inflow passage 221. It can be understood that
the peripheral wall 22 is made of a plate with a certain thickness,
so that the peripheral wall 22 can allow the air inflow passage 221
and the smoke outflow passage 222 to be formed inside the
peripheral wall 22 perpendicularly to the thickness direction
thereof. In one embodiment, the air inflow passage 221 extends
axially from the bottom end of the peripheral wall 22 to a certain
height. In one embodiment, the peripheral wall 22 correspondingly
defines an air inlet hole 24 which communicates with the top end of
the air inflow passage 221. After the air is supplied from the air
inlet hole 24, it can flow out from the bottom end of the
peripheral wall 22 along the air inflow passage 221. In one
embodiment, the smoke outflow passage 222 extends axially from the
bottom end of the peripheral wall 22 to the top end of the
peripheral wall 22, penetrating the top end and the bottom end of
the peripheral wall 22 such that the air flows in from the bottom
end of the smoke outflow passage 222 and flows out from the top end
of the peripheral wall 22. By forming the air inflow passage 221
and the smoke outflow passage 222 in the peripheral wall 22, it can
make full use of the peripheral space of the cartridge 20, and it
is not necessary to form these passages in the middle of the
electronic cigarette where a large number of components are
disposed, thereby reducing the volume of the electronic cigarette.
Further, the arrangement of the air entering from top and leaving
from top can also effectively prevent liquid leakage. A liquid
injection hole 25 is radially formed in the peripheral wall 22 for
injecting cigarette liquid into the liquid storage chamber 23, and
the liquid injection hole 25 is not communicated with the air
inflow passage 221 or the smoke outflow passage 222, to ensure
direct injection of the cigarette liquid into the liquid storage
chamber 23. For example, the liquid injection hole 25 can be
defined in the peripheral wall 22 at a position where it does not
communicate with the air inflow passage 221 or the smoke outflow
passage 222, such as above the air inflow passage 221. Further, the
liquid injection hole 25 can also be formed axially through the top
wall 21.
[0040] In this embodiment, the cartridge 20 can be divided into a
lower half and an upper half integrally formed with the lower half
(as separated by the center line 201 in the figure). The lower half
is installed in the lower housing 12. The upper half is installed
in the upper housing 11. Latching blocks 26 are protruded outwardly
from the peripheral wall 22 of the cartridge 20, and the latching
blocks 26 are formed at the connecting portion between the lower
half and the upper half for engaging in the latching holes 13
formed at the connecting portion between the upper housing 11 and
the lower housing 12. In one embodiment, the air inflow passage
221, the air inlet hole 24 and the liquid injection hole 25 are all
formed in the lower half at one side of the peripheral wall 22, the
air inflow passage 221 extends from the bottom end of the
peripheral wall 22 to a certain height and communicates with the
air inlet hole 24, the liquid injection hole 25 is located directly
above the air inlet hole 24, and the top of the liquid injection
hole 25 is flush with the center line 201. The shape of the liquid
injection hole 25 is not limited. In this embodiment, the liquid
injection hole 25 is formed by a rectangular notch fitted with a
central circular hole to facilitate the installation of a liquid
filling plug 27 (see FIG. 2). The smoke outflow passage 222 is
formed in the peripheral wall 22 at the other side of the liquid
storage chamber 23 opposite to the air inflow passage 221, and the
smoke outflow passage 222 extends from the bottom end of the
peripheral wall 22 through the lower half and then extends into the
upper half. In one embodiment, two opposite sides of the upper half
are formed with a cutout 202 corresponding to the air inflow
passage 221 and the smoke outflow passage 222. The cutout 202
extends downwards from the top end of the upper half to a certain
distance. The cutout 202 is not communicated with the liquid
storage chamber 23. After the cutout 202 is extended by a certain
distance, the bottom surface of the cutout 202 is correspondingly
configured as the top surface of the smoke outflow passage 222. In
one embodiment, the smoke outflow passage 222 is provided with a
smoke outlet hole 223 at the top end of the peripheral wall 22. In
one embodiment, by forming the cutouts 202 on both sides of the
upper half, the upper half of the cartridge 20 can be fitted into
the upper housing 11, to adapt the flat, contracted shape of the
upper housing 11. In the case where the outer shape of the upper
housing 11 is not considered, the cutouts 202 need not be formed on
both sides of the upper half. A clip 203 is formed on the outer
circumference of the upper half to engage correspondingly with the
slot 14 of the upper housing 11. The top wall of the upper half
(corresponding to the top wall 21 of the cartridge 20) is provided
with a protrusion 204. After the upper half of the cartridge 20 is
inserted into the upper housing 11, the protrusion 204 is engaged
with the upper housing 11 to enhance the alignment accuracy and
stability. In addition, an air guiding tab 28 is provided at the
bottom surface of the peripheral wall 22 of the cartridge 20
corresponding to the outlet of the air inflow passage 221 and the
inlet of the smoke outflow passage 222. The air guiding tab 28 is
L-shaped, and the two air guiding tabs 28 are oppositely disposed,
so that the airflow flowing out from the air inflow passage 221 is
guided by the air guiding tab 28 to the side of the smoke outflow
passage 222, and the airflow is then guided into the smoke outflow
passage 222 by the air guiding tab 28 of the smoke outflow passage
222. According to the ventilation needs of the components of the
control assembly 40, the air guiding tab 28 can be omitted or
perforated, such that when inhaling, the control assembly 40 is
activated and the suction airflow passes through the air guiding
tab 28 to enter into the air inflow passage 221. In this
embodiment, the oppositely disposed L-shaped air guiding tabs 28
can guide the airflow, to ensure that the airflow smoothly enters
the smoke outflow passage 222 from the air inflow passage 221 and
to improve the sealing property with the two ends of the atomizing
head 31.
[0041] The atomizing assembly 30 is mounted at the bottom side of
the cartridge 20, and the two ends of the atomizing assembly 30 are
communicated with the outlet of the air inflow passage 221 and the
inlet of the smoke outflow passage 222, respectively. The atomizing
assembly 30 atomizes the cigarette liquid flowing in from the
liquid storage chamber 23 of the cartridge 20 to form smoke, and
the smoke is carried out through the airflow. The atomizing
assembly 30 includes an atomizing head 31. Referring to FIG. 6 and
FIG. 7, the atomizing head 31 has a cylindrical shape, and includes
a first casing 311 disposed at one end, a second casing 312
disposed at the other end, and an insulating member 313 disposed
between the first casing 311 and the second casing 312. The first
casing 311 and the second casing 312 serve as the peripheral wall
of the atomizing head 31 and are each electrically conductive, for
respectively connecting two electric poles, wherein one of them is
connected to the positive pole and the other is connected to the
negative pole. An electrical connecting leg 314 is provided on each
of the first casing 311 and the second casing 312 for connecting to
the electric pole. The atomizing head 31 defines an atomizing
channel 315 in the axial direction to penetrate both ends of the
atomizing head 31. The first casing 311 is longer than the second
casing 312. The outer wall of the first casing 311 is provided with
a liquid inlet hole 3111 for the cigarette liquid in the liquid
storage chamber 23 to flow into the atomizing head 31 through the
liquid inlet hole 3111. It is noted that the atomizing channel 315
is a place where the cigarette liquid is atomized into smoke,
allowing the airflow to pass therethrough. The airflow enters from
one end of the atomizing channel 315, and exits from the other end
of the atomizing channel 315 while carrying the smoke generated
from the cigarette liquid in the atomizing channel 315.
[0042] In one embodiment, the atomizing head 31 includes a heating
member 316 and a liquid absorbing member 317. The liquid absorbing
member 317 is wrapped around the outer periphery of the heating
member 316, and together mounted in the inner chamber of the first
casing 311. The heating member 316 is selected as a spiral formed
by spiraling a heating wire, and the inside of the spiral serves as
the atomizing channel 315. One end of the heating wire is connected
to the first casing 311, and the other end of the heating wire is
connected to the second casing 312. The other parts of the heating
wire are not in contact with the first casing 311 and the second
casing 312. Optionally, the heating member 316 is a heating wire
wound by a nickel alloy. Optionally, the liquid absorbing member
317 is selected as a liquid absorbent cotton or a fiber rope. In
addition, the specific structure of the atomizing head may also be
that the heating member wrapped around the outer periphery of the
liquid absorbing member. The atomizing channel 315 is an atomizing
chamber with both ends being penetrated, wherein the heating member
and the liquid absorbing member are disposed in the atomizing
chamber. In this way, the cigarette liquid in the liquid storage
chamber of the cartridge 20 flows in through the liquid inlet hole
3111 and is absorbed by the liquid absorbing member 317. When
conducting the heating wire 316, the heating wire 316 generates
heat to evaporate the cigarette liquid absorbed on the liquid
absorbing member 317 into smoke. The airflow in the air inflow
passage 221 enters into the atomizing channel 315, to carry the
smoke in the atomizing channel 315 into the smoke outflow passage
222. In this embodiment, the first casing 311 is selected to be
connected to the positive pole, and the second casing 312 is
selected to be connected to the negative pole. It can be understood
that the polarities for the first casing 311 and the second casing
312 may be interchangeable. As such, the atomizing head has a
simple structure and can be placed horizontally, which is
advantageous for reducing the vertical height of the electronic
cigarette.
[0043] Referring to FIG. 8, a preferred embodiment of the present
invention further provides an improved atomizing head 31. The
improvement is that a plurality of liquid inlet holes 3111 are
formed in the outer wall of the atomizing head 31. A liquid
retaining ring 318 is sleeved on each of the two ends of the outer
wall of the atomizing head 31, so that the plurality of liquid
inlet holes 3111 formed in the outer wall are located between the
two liquid retaining rings 318, to ensure that the cigarette liquid
only flows into the atomizing head 31 and prevents the cigarette
liquid from entering other places. The liquid retaining ring 318
may be a rubber ring. The liquid inlet holes 3111 can be formed on
the first casing 311 and/or the second casing 312. Optionally, the
plurality of liquid inlet holes 3111 are formed only at one side of
the first casing 311 facing the liquid storage chamber and
corresponding to the liquid absorbing member. In this way, the
contact atomizing effect between the liquid absorbing member 317
and the cigarette liquid is better, and the amount of smoke is
larger.
[0044] Referring to FIG. 2 again, in order to facilitate the
installation of the atomizing head 31 and improve the sealing
property between the atomizing head 31 and the liquid storage
chamber after installation, the atomizing assembly 30 further
includes an atomizing head sleeve 32 for mounting to the bottom
side of the cartridge 20 with the atomizing head 31. In one
embodiment, the atomizing head sleeve 32 has a tube shape, and one
side of the tube wall is provided with a liquid passing hole 321
and the opposite side is provided with a pole connecting hole 322.
The side of the atomizing head sleeve 32 having the liquid passing
hole 321 is held in the liquid storage chamber of the cartridge 20,
and the two ends of the atomizing head sleeve 32 closely abut
against the inner wall of the liquid storage chamber, thereby
improving the sealing effect at the bottom end of the liquid
storage chamber, so that the cigarette liquid flows only along the
tube wall of the atomizing head sleeve 32, and flows into the
liquid inlet hole 3111 of the atomizing head 31 from the liquid
passing hole 321. The atomizing head sleeve 32 may be a rubber
sleeve. It can be understood that, in one embodiment, the atomizing
head 31 can be mounted directly to the bottom side of the
cartridge, and the atomizing head sleeve 32 can be omitted. In
addition, when the atomizing head 31 has the liquid retaining rings
318, the atomizing head sleeve 32 is sleeved on the outer
circumference of the two liquid retaining rings 318.
[0045] After the atomizing assembly 30 is installed, the two ends
of the atomizing channel 315 of the atomizing head 31 are
respectively aligned with the outlet of the air inflow passage 221
and the inlet of the smoke outflow passage 222. The air inflow
passage 221, the smoke outflow passage 222 and the atomizing
channel 315 cooperatively form an airflow passage in the electronic
cigarette, which is a U-shaped airflow passage surrounding the
liquid storage chamber 23, to solve the problem that the air inlet
hole of the existing electronic cigarette is defined at the bottom
of the housing, and the air inlet hole at the bottom is easy to
cause leakage of cigarette liquid. Meanwhile, the airflow is
smoother and the suction effect is better. Further, the atomizing
head 31 is disposed at the bottom side of the cartridge 20 without
being placed into the liquid storage chamber of the cartridge 20,
to facilitate the assembling and disassembling of the atomizing
head 31.
[0046] The control assembly 40 is configured to supply power to the
atomizing head 31 in response to the suction action. The control
assembly 40 includes a mounting bracket 41 and a circuit board 42,
a pole contacting member 43, a sensor 44 and a power source 45,
which are mounted on the mounting bracket 41. The mounting bracket
41 is mounted in the lower housing 12. The mounting bracket 41 is
provided with mounting spaces corresponding to the circuit board
42, the pole contacting member 43, the sensor 44 and the power
source 45. A partition wall 411 is formed on the mounting bracket
41 between the circuit board 42 and the atomizing head 31. A
mounting hole 412 and a suction sensing channel 413 are defined in
the partition wall 411. The mounting hole 412 is used for mounting
the pole contacting member 43, so that the circuit board 42 is
electrically connected to the atomizing head 31. The suction
sensing channel 413 communicates the airflow passage of the
electronic cigarette with the sensor 44. The sensor 44 is generally
an airflow sensor or an air pressure sensor. During suction, the
airflow flows along the air inflow passage 221 and the smoke
outflow passage 222, and a negative pressure is formed in the
suction sensing channel 413, thereby activating the sensor, causing
the circuit board 42 to operate. The circuit board 42 drives the
atomizing head 31 to perform the atomizing action. A USB slot 421
is formed in the circuit board 42 to cooperate with the USB
interface 123 of the lower housing 12, for connecting to a charger.
The power source 45 is detachably mounted on the mounting bracket
41 below the circuit board 42 for supplying power to the circuit
board 42 and the atomizing head 31. The power source 45 can be a
battery module or a battery cell.
[0047] In this embodiment, the mounting hole 412 is located
corresponding to the electrical connecting legs 314 of the
atomizing head 31. The suction sensing channel 413 corresponds to
the inlet of the smoke outflow passage 222, and is aligned with the
smoke outflow passage 222. By omitting the air guiding tab 28 or
perforating the air guiding tab 28, the airflow in the suction
sensing channel 413 can directly flow into the smoke outflow
passage 222 during suction. In one embodiment, the circuit board 42
is an L-shaped board with the pole contacting member 43 being
connected to the top end. The pole contacting member 43 is disposed
in the mounting hole 412 of the partition wall 411, and the pole
contacting member 43 electrically connects the atomizing head 31
and the circuit board 42. Specifically, the pole contacting member
43 includes a positive pole and a negative pole. The positive pole
and the negative pole are both connected to the circuit board 42
with one end, and the other end is connected to the electrical
connecting leg 314. The sensor 44 is disposed at one side of the
circuit board 42 (as surrounded by the L-shaped board), and is
disposed at one end of the suction sensing channel 413, so that
when smoking, the suction sensing channel 412 is sucked, and the
sensor 44 is activated to trigger the circuit board 42 to work. It
can be understood that the suction sensing channel 412 can be
defined at any position of the partition wall 411, and it is only
necessary to ensure that the suction sensing channel 412
communicates the sensor 44 with the airflow passage.
[0048] In conclusion, the present invention provides an electronic
cigarette adopting a surrounding air intake mode, that is, the
whole airflow passage of the electronic cigarette surrounds the
liquid storage chamber 23. The peripheral wall 22 surrounding the
liquid storage chamber 23 is provided with an air inflow passage
221 and a smoke outflow passage 222. One side of the liquid storage
chamber 23 of the cartridge 20 is provided with the air inflow
passage 221, and the other side is provided with the smoke outflow
passage 222. The liquid storage chamber, the air inflow passage and
the smoke outflow passage are integrally arranged to save space and
reduce the difficulty of assembling. The atomizing head is disposed
under the cartridge without being inserted into the interior of the
cartridge, thereby realizing the contacting of the cartridge with
the atomizing head to absorb the cigarette liquid. With the
surrounding air intake mode, the air inlet hole can be defined on
the circumference of the electronic cigarette, other than being
defined on the bottom side, to avoid leakage of cigarette liquid
when inhaling. In addition, by communicating the sensor with the
airflow passage through the suction sensing channel, the sensor can
be activated to trigger smoking when inhaling, to realize automatic
smoking in real time and conveniently.
[0049] It can be understood that the lower end of the cartridge 20
can be integrally provided with a bottom wall, and the bottom wall
is defined with a through hole to align and communicate with the
liquid inlet hole 3111 of the atomizing head.
[0050] Any combination of various embodiments of the present
invention should be considered as being disclosed in the present
invention without departing from the inventive concept. Various
modifications of the technical solutions are possible within the
scope of the technical idea of the present invention. Any
combination of the various embodiments that do not depart from the
inventive concept is intended to be within the scope of the
invention.
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