U.S. patent application number 14/938605 was filed with the patent office on 2016-03-03 for band-type fan structure.
The applicant listed for this patent is Asia Vital Components Co., Ltd.. Invention is credited to Bor-Haw Chang, Liang-Ji Chang.
Application Number | 20160061041 14/938605 |
Document ID | / |
Family ID | 55401936 |
Filed Date | 2016-03-03 |
United States Patent
Application |
20160061041 |
Kind Code |
A1 |
Chang; Bor-Haw ; et
al. |
March 3, 2016 |
BAND-TYPE FAN STRUCTURE
Abstract
A band-type fan structure includes a transmission band body and
multiple blades. The multiple blades are side by side disposed on
the transmission band body along the surface of the transmission
band body in parallel to each other. Each two adjacent blades
define therebetween a flow way. When the transmission band body is
continuously reciprocally moved, the blades are driven by the
transmission band body to continuously reciprocally move to disturb
the air in the flow ways so as to produce an air volume.
Inventors: |
Chang; Bor-Haw; (New Taipei
City, TW) ; Chang; Liang-Ji; (New Taipei City,
TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Asia Vital Components Co., Ltd. |
New Taipei City |
|
TW |
|
|
Family ID: |
55401936 |
Appl. No.: |
14/938605 |
Filed: |
November 11, 2015 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
13670459 |
Nov 7, 2012 |
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14938605 |
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Current U.S.
Class: |
416/7 |
Current CPC
Class: |
F04D 33/00 20130101 |
International
Class: |
F01D 5/02 20060101
F01D005/02; F01D 5/10 20060101 F01D005/10 |
Claims
1. A band-type fan structure comprising: a transmission band body,
which is an elongated band body; and multiple blades side by side
disposed on the transmission band body along the transmission band
body in parallel to each other, each two adjacent blades defining
therebetween a flow way, when the transmission band body is
continuously linearly reciprocally moved, the blades being driven
by the transmission band body to continuously reciprocally
move.
2. A band-type fan structure comprising: a transmission band body,
which is an elongated band body; multiple blades side by side
disposed on the transmission band body along the transmission band
body in parallel to each other, each blade having a main body
disposed on a surface of the transmission band body and a first end
extending from the main body and protruding from the transmission
band body, each two adjacent blades defining therebetween a flow
way; and a power member electrically connected to the transmission
band body for making the transmission band body continuously
linearly reciprocally move, whereby the blades are driven by the
transmission band body to continuously reciprocally move.
3. The band-type fan structure as claimed in claim 2, further
comprising a case having at least one bottom board and two
sidewalls disposed on two opposite sides of the bottom board, the
bottom board and the sidewalls together defining a receiving space
for receiving the transmission band body and the blades, the
receiving space communicating with the flow ways between the
blades.
4. The band-type fan structure as claimed in claim 3, wherein the
surface of the transmission band body has multiple connected
sections, one face of the main body of the blade, which face is
proximal to the transmission band body, is connected with the
connected section.
5. The band-type fan structure as claimed in claim 4, wherein the
connected section is an insertion hole or a threaded hole and is an
insertion pin or a screw, a connection section of the main body
corresponding to the connected section being an insertion pin or a
screw, the connected section being connected with the main body by
means of insertion or screwing.
6. The band-type fan structure as claimed in claim 1, wherein the
blades are wing-shaped.
7. The band-type fan structure as claimed in claim 1, wherein the
blade further has a second end extending from the main body in a
direction opposite to the first end and protruding from the
transmission band body.
8. The band-type fan structure as claimed in claim 1, wherein the
first ends of the blades are made of flexible material.
9. The band-type fan structure as claimed in claim 2, wherein the
first ends of the blades are made of flexible material.
10. The band-type fan structure as claimed in claim 7, wherein the
second ends of the blades are made of flexible material or both the
first and second ends of the blades are made of flexible
material.
11. The band-type fan structure as claimed in claim 5, wherein the
transmission band body further defines a passageway in
communication with the connected sections.
12. The band-type fan structure as claimed in claim 2, wherein the
power member has multiple transmission shafts and a power source,
the transmission shafts being positioned on two sides of the
passageway and connected with the power source.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] The present application is a Continuation-in-Part of U.S.
patent application Ser. No. 13/670,459, filed on Nov. 7, 2012,
titled Band-Type Fan Structure, listing Bor-Haw Chang and Liang-Ji
Chang as inventors, herein incorporated by reference in its
entirety.
BACKGROUND OF THE INVENTION
[0002] 1. Field of the Invention
[0003] The present invention relates generally to a band-type fan
structure, and more particularly to a band-type fan structure,
which has a greatly minified volume. Also, the band-type fan
structure improves the shortcoming of unstable operation of the
conventional fan due to deflection of the blades.
[0004] 2. Description of the Related Art
[0005] Along with the continuous advance of electronic technologies
and industries, the density of transistors of various chips (such
as central processor and execution unit) has been more and more
increased. This enables the central processor to process data at
higher and higher speed. However, the power consumption and heat
generated by the central processor have also become higher and
higher. In order to keep the central processor stably operating, it
has become an important topic how to develop high-efficiency heat
dissipation unit for dissipating the heat generated by the central
processor.
[0006] In order to keep a high-efficiency heat dissipation
function, the heat dissipation unit has inevitably become larger
and larger and heavier and heavier. However, in design of
electronic device such as laptop, tablet, intelligent mobile phone
and intelligent handheld electronic device, the limitation of space
is always a greatest bottleneck of the design process.
[0007] Please refer to FIG. 1, which is a perspective assembled
view of a conventional fan module 1. The fan module 1 includes a
centrifugal fan 10, a heat pipe 11 and a heat dissipation unit 12.
The centrifugal fan 10 serves to drive air to flow so as to carry
away the heat of the heat dissipation unit 12 and lower the
temperature. The performance of the fan module 1 is determined by
the wind pressure and air volume of the centrifugal fan 10 and the
heat exchange area of the heat dissipation unit. The larger the
heat exchange area of the heat dissipation unit 12 is, for example,
the longer the radiating fin is, the better the heat dissipation
effect of the heat dissipation unit 12 is. However, the increase of
the length of the radiating fin will lead to excessively large
total volume of the fan module. This fails to meet the requirements
for lightweight, slimness and miniaturization of the laptop.
[0008] In order to meet the requirements for lightweight, slimness
and miniaturization, the respective components are as minified as
possible. Therefore, the centrifugal fan is miniaturized. However,
due to the miniaturization of the volume, the blades of the
miniaturized centrifugal fan are very thin and have a large area.
As a result, the blades are easy to deflect to cause more
vibrations and make louder noise.
[0009] According to the above, the conventional fan module has the
following shortcomings:
[0010] 1. The volume is larger.
[0011] 2. The blades tend to deflect to cause unstable
operation.
SUMMARY OF THE INVENTION
[0012] It is therefore a primary object of the present invention to
provide a band-type fan structure, which has a greatly minified
volume.
[0013] It is a further object of the present invention to provide
the above band-type fan structure, which improves the shortcoming
of unstable operation of the conventional fan due to deflection of
the blades.
[0014] To achieve the above and other objects, the band-type fan
structure of the present invention includes a transmission band
body and multiple blades. The transmission band body is an
elongated band body. The blades are side by side disposed on the
transmission band body in parallel to each other. Each blade has a
main body disposed on a surface of the transmission band body and a
first end outward extending from the main body and protruding from
the transmission band body. Each two adjacent blades define
therebetween a flow way. When the transmission band body is
continuously reciprocally moved, the blades are driven by the
transmission band body to continuously reciprocally move.
[0015] In the above band-type fan structure, the main bodies of the
blades are disposed on the surface of the transmission band body
with the first ends of the blades protruding from the transmission
band body. A power member is electrically connected to the
transmission band body. When the power member is turned on, the
power member drives the transmission band body to continuously
linearly reciprocally move, whereby the blades are driven by the
transmission band body to continuously reciprocally move. Under
such circumstance, the air originally stationary in the flow ways
is disturbed by the blades driven by the continuously reciprocally
moved transmission band body to create airflow. The airflow will be
continuously compressed between the blades driven by the
transmission band body to flow to the first ends to produce an air
volume. Therefore, by means of moving the flow ways and the blades
relative to each other, the surrounding airflow is changed to
produce the air volume. Accordingly, the band-type fan has a
greatly minified volume and can be used instead of the conventional
fan, which has an excessively large total volume. Moreover, the
band-type fan structure improves the shortcoming of unstable
operation of the conventional fan due to deflection of the
blades.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The structure and the technical means adopted by the present
invention to achieve the above and other objects can be best
understood by referring to the following detailed description of
the preferred embodiments and the accompanying drawings,
wherein:
[0017] FIG. 1 is a perspective assembled view of a conventional fan
structure;
[0018] FIG. 2A is a perspective exploded view of a first embodiment
of the band-type fan structure of the present invention;
[0019] FIG. 2B is a perspective assembled view of the first
embodiment of the band-type fan structure of the present
invention;
[0020] FIG. 3A is a perspective exploded view of the first
embodiment of the band-type fan structure of the present
invention;
[0021] FIG. 3B is a perspective assembled view of the first
embodiment of the band-type fan structure of the present
invention;
[0022] FIG. 4A is a perspective exploded view of a second
embodiment of the band-type fan structure of the present
invention;
[0023] FIG. 4B is a perspective assembled view of the second
embodiment of the band-type fan structure of the present
invention;
[0024] FIG. 4C is a perspective view of the second embodiment of
the band-type fan structure of the present invention, showing the
operation thereof;
[0025] FIG. 5 is a perspective view of a third embodiment of the
band-type fan structure of the present invention; and
[0026] FIG. 6 is a perspective assembled view of a fourth
embodiment of the band-type fan structure of the present
invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0027] Please refer to FIGS. 2A and 2B. FIG. 2A is a perspective
exploded view of a first embodiment of the band-type fan structure
of the present invention. FIG. 2B is a perspective assembled view
of the first embodiment of the band-type fan structure of the
present invention. According to the first embodiment, the band-type
fan structure of the present invention includes a transmission band
body 20 and multiple blades 21. The transmission band body 20 is an
elongated band body. The blades 21 are side by side disposed on the
transmission band body 20 along the transmission band body 20 in
parallel to each other. Each two adjacent blades 21 define
therebetween a flow way 215. Each blade 21 has a main body 211
disposed on a surface 203 of the transmission band body 20 and a
first end 213 outward extending from the main body 211 and
protruding from the transmission band body 20.
[0028] In this embodiment, the blade 21 has a wing-shaped
configuration. The wing-shaped configuration has an aerodynamic
property that the shape of the blade 21 can change the direction of
the force, for example, change a horizontal force into lifting
force or change a horizontal rotational torque into a vertical push
force.
[0029] In addition, the first end 213 of the blade 21 can be made
of a flexible material. Due to the property of the flexible
material, when the transmission band body 20 is continuously
linearly reciprocally moved, the swing amplitude of the first end
213 of the blade 21 is larger than that of the blade 21 made of
common inflexible material. In this case, the air volume produced
is consequentially relatively larger.
[0030] Therefore, when the transmission band body 20 is
continuously linearly reciprocally moved, the blades 21 are driven
by the transmission band body 20 to continuously reciprocally move.
Under such circumstance, the air originally stationary in the flow
ways is disturbed by the blades 21 driven by the continuously
reciprocally moved transmission band body 20 to create airflow. The
airflow will be continuously compressed between the blades 21
driven by the transmission band body 20 to flow to the first ends
to produce an air volume. Therefore, by means of moving the blades
and the flow ways relative to each other, the surrounding airflow
is changed to produce the air volume. Accordingly, the band-type
fan has a greatly minified volume and can be used instead of the
conventional fan, which has an excessively large total volume.
Moreover, the band-type fan structure improves the shortcoming of
unstable operation of the conventional fan due to deflection of the
blades.
[0031] Further referring to FIGS. 3A and 3B as well as FIG. 2B, the
band-type fan structure further includes a case 22 having at least
one bottom board 221 and two sidewalls 222 disposed on two opposite
sides of the bottom board 221. The bottom board 221 and the
sidewalls 222 together define a receiving space 223 for receiving
the transmission band body 20 and the blades 21. The receiving
space 223 communicates with the flow ways 214 between the blades
21.
[0032] Please now refer to FIGS. 4A, 4B and 4C. FIG. 4A is a
perspective exploded view of a second embodiment of the band-type
fan structure of the present invention. FIG. 4B is a perspective
assembled view of the second embodiment of the band-type fan
structure of the present invention. FIG. 4C is a perspective view
of the second embodiment of the band-type fan structure of the
present invention, showing the operation thereof. The second
embodiment is partially identical to the first embodiment in
component and relationship between the components and thus will not
be repeatedly described hereinafter. The second embodiment is
mainly different from the first embodiment in that the surface 203
of the transmission band body 20 has multiple connected sections
204. One face of the main body 211 of the blade 21, which face is
proximal to the transmission band body 20, is connected with the
connected section 204. The connected section 204 is an insertion
hole or a threaded hole. A connection section of the main body 211
corresponding to the connected section 204 is an insertion pin or a
screw. The connected section 204 is connected with the main body
211 by means of insertion or screwing.
[0033] The transmission band body 20 further defines a passageway
205 in communication with the connected sections 204. The band-type
fan structure further includes a power member 3 electrically
connected to the transmission band body 20, whereby the blades 21
can be driven by the transmission band body 20 to continuously
reciprocally move. The power member 3 has at least one transmission
shaft 31 and a power source 32. The transmission shaft 31 is
positioned on two sides of the passageway 205 and connected with
the power source 32.
[0034] Please now refer to FIGS. 5 and 4A. FIG. 5 is a perspective
view of a third embodiment of the band-type fan structure of the
present invention. The third embodiment is partially identical to
the first embodiment in component and relationship between the
components and thus will not be repeatedly described hereinafter.
The third embodiment is mainly different from the first embodiment
in that the blade 21 further has a second end 214 extending from
the main body 211 in a direction opposite to the first end 213 and
protruding from the transmission band body 20. One of the first and
second ends 213, 214 of the blade 21 or both of the first and
second ends 213, 214 of the blade 21 are made of flexible
material.
[0035] Please now refer to FIG. 6, which is a perspective assembled
view of a fourth embodiment of the band-type fan structure of the
present invention. The fourth embodiment is partially identical to
the first embodiment in component and relationship between the
components and thus will not be repeatedly described hereinafter.
The fourth embodiment is mainly different from the first embodiment
in that the band-type fan structure includes multiple transmission
band bodies 20 and multiple blades 21 disposed on the transmission
band bodies 20. The transmission band bodies 20 are serially
connected with each other to form a large-size band-type fan
structure. This can achieve the same effect as the above
embodiments.
[0036] In conclusion, in comparison with the conventional fan
structure, the present invention has the following advantages:
[0037] 1. The volume of the fan structure is greatly reduced.
[0038] 2. The shortcoming of unstable operation of the conventional
fan structure due to deflection of the blades is improved.
[0039] The present invention has been described with the above
embodiments thereof and it is understood that many changes and
modifications in the above embodiments can be carried out without
departing from the scope and the spirit of the invention that is
intended to be limited only by the appended claims.
* * * * *