U.S. patent application number 15/689700 was filed with the patent office on 2018-03-01 for hand held appliance.
This patent application is currently assigned to Dyson Technology Limited. The applicant listed for this patent is Dyson Technology Limited. Invention is credited to Robert Mark Brett COULTON, Brian MCVEIGH, Craig Stuart SPARK, Daniel John THOMPSON.
Application Number | 20180055181 15/689700 |
Document ID | / |
Family ID | 57119813 |
Filed Date | 2018-03-01 |
United States Patent
Application |
20180055181 |
Kind Code |
A1 |
SPARK; Craig Stuart ; et
al. |
March 1, 2018 |
HAND HELD APPLIANCE
Abstract
A hand held appliance includes a handle having an outer wall and
an inner wall, a motor and a heater both housed within the inner
wall, a wiring assembly including a power supply for the motor and
a power supply for the heater wherein the power supply for the
motor is substantially diametrically opposite the power supply for
the heater within the handle. The power supply for the motor may be
substantially diametrically opposite the power supply for the
heater when the wiring assembly extends passed the motor. When the
wiring assembly extends passed the motor, the wiring assembly may
be located between the outer wall and the inner wall. The inner
wall may include at least one channel extending along a radially
outer surface for housing the wiring assembly and each of the at
least one channel may house a wire of the wiring assembly.
Inventors: |
SPARK; Craig Stuart;
(Bristol, GB) ; THOMPSON; Daniel John; (Bristol,
GB) ; MCVEIGH; Brian; (Bristol, GB) ; COULTON;
Robert Mark Brett; (Bristol, GB) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Dyson Technology Limited |
Wiltshire |
|
GB |
|
|
Assignee: |
Dyson Technology Limited
Wiltshire
GB
|
Family ID: |
57119813 |
Appl. No.: |
15/689700 |
Filed: |
August 29, 2017 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A45D 20/50 20130101;
A45D 2/001 20130101; A45D 2/24 20130101; A45D 20/48 20130101; A45D
2/36 20130101; A45D 1/04 20130101; A45D 20/12 20130101; A45D 1/16
20130101 |
International
Class: |
A45D 2/36 20060101
A45D002/36; A45D 20/12 20060101 A45D020/12; A45D 2/24 20060101
A45D002/24 |
Foreign Application Data
Date |
Code |
Application Number |
Aug 30, 2016 |
GB |
1614664.9 |
Claims
1. A hand held appliance comprising a handle having an outer wall
and an inner wall, a motor and a heater both housed within the
inner wall, and a wiring assembly including a power supply for the
motor and a power supply for the heater, wherein the power supply
for the motor is diametrically opposite the power supply for the
heater within the handle.
2. The appliance of claim 1, wherein the power supply for the motor
is diametrically opposite the power supply for the heater as the
wiring assembly extends past the motor.
3. The appliance of claim 1, wherein as the wiring assembly extends
past the motor, the wiring assembly is located between the outer
wall and the inner wall.
4. The appliance of claim 3, wherein the inner wall comprises at
least one channel extending along a radially outer surface for
housing the wiring assembly.
5. The appliance of claim 4, wherein each of the at least one
channel houses a wire of the wiring assembly.
6. The appliance of claim 5, wherein the each of the at least one
channel is sized to accommodate a wire of the wiring assembly.
7. The appliance of claim 5, wherein each of the at least one
channels have a depth within the radially outer surface adapted for
one of the wires of the wiring assembly.
8. The appliance of claim 1, wherein the handle further comprises a
fluid inlet at one end and a fluid flow path extending along the
handle within the outer wall.
9. The appliance of claim 8, wherein upstream of the fluid inlet,
the handle comprises a printed circuit board (PCB), the motor and
the heater, and a fluid outlet.
10. The appliance of claim 9, wherein for a portion of the length
of the handle, the fluid flow path extends within the inner
wall.
11. The appliance of claim 10, wherein the fluid flow path extends
within the inner wall downstream of the PCB.
12. The appliance of claim 1, wherein the appliance is a hair care
appliance.
13. The appliance of claim 12, wherein the hair care appliance is a
hot styling appliance.
Description
REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the priority of United Kingdom
Application No. 1614664.9, filed Aug. 30, 2016, the entire contents
of which are incorporated herein by reference.
FIELD OF THE INVENTION
[0002] This invention relates to a handheld appliance and in
particular to a hair care appliance such as a hot styling
device.
BACKGROUND OF THE INVENTION
[0003] In a conventional hot styling appliance, air is drawn into
an inlet by a fan unit and directed towards the hair by an outlet.
Often, one appliance is provided with different attachments, each
having a different outlet and thus a different function, for
example drying, curling or volumising. Depending on the style
desired, the air may or may not be heated. The attachment may
include bristles onto which hair is wrapped and held for
styling.
[0004] The appliance will have a power supply for providing power
to the fan unit and heater amongst other things. A power circuit
formed from wires that extend through the product linking the fan
unit and heater to the power supply will need to be accommodated
within the appliance. Often such wires are merely connected between
one component and another and are left free within the appliance.
In some circumstances this can cause problems such as with EMC
(electromagnetic compatibility) where two wires in proximity cause
an electromagnetic disturbance which radiates external to the
appliance.
SUMMARY OF THE INVENTION
[0005] According to some embodiments, the invention provides a hand
held appliance comprising a handle having an outer wall and an
inner wall, a motor and a heater both housed within the inner wall,
a wiring assembly including a power supply for the motor and a
power supply for the heater wherein the power supply for the motor
is substantially diametrically opposite the power supply for the
heater within the handle.
[0006] Preferably, the power supply for the motor is substantially
diametrically opposite the power supply for the heater when the
wiring assembly extends passed the motor.
[0007] In a preferred embodiment, when the wiring assembly extends
passed the motor, the wiring assembly is located between the outer
wall and the inner wall.
[0008] Preferably, the inner wall comprises at least one channel
extending along a radially outer surface for housing the wiring
assembly.
[0009] In a preferred embodiment each of the at least one channel
houses a wire of the wiring assembly.
[0010] Preferably, the each of the at least one channel is sized to
accommodate a wire of the wiring assembly.
[0011] In a preferred embodiment each of the at least one channels
have a depth within the radially outer surface adapted for one of
wires of the wiring assembly.
[0012] Preferably, the handle further comprises a fluid inlet at
one end and a fluid flow path extending along the handle within the
outer wall.
[0013] In a preferred embodiment upstream of the fluid inlet the
handle comprises a printed circuit board (PCB), the motor and the
heater and a fluid outlet.
[0014] Preferably, for a portion of the length of the handle, the
fluid flow path extends within the inner wall.
[0015] In a preferred embodiment the fluid flow path extends within
the inner wall downstream of the PCB.
[0016] Preferably, the appliance is a hair care appliance.
[0017] In a preferred embodiment, the hair care appliance is a hot
styling appliance.
[0018] In a preferred embodiment, the appliance is a hair care
appliance and preferably, a hot styling device.
BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The invention will now be described by way of example, with
reference to the accompanying drawings, of which:
[0020] FIG. 1 shows an appliance on which a user interface
according to the invention can be utilised;
[0021] FIG. 2 shows a top view of a handle without the outer
wall;
[0022] FIGS. 3a and 3b show side views of a first side of an inner
wall according to the invention with and without wiring
respectively;
[0023] FIGS. 4a and 4b show side views of a second side of an inner
wall according to the invention with and without wiring
respectively; and
[0024] FIG. 5 shows a cross section through a handle according to
the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Referring to FIGS. 1 and 2, an example of a hand held
appliance 10 is shown. The appliance has a handle 210 and an
attachment 20 for styling hair. In order to enable a user to create
different styles and to give the appliance multi functionality, the
attachment 20 is removable and can be replaced with an alternative
attachment. In addition, the attachment 20 can be removed to allow
easier storage of the appliance when not in use. The handle 210
includes a number of different user operated buttons 38, 138
enabling the user to select between a number of different heat and
flow settings. The handle 210 includes a PCB 90, a fan unit 70
which includes a fan and a motor, and a heater 80. In use, the fan
unit 70 draws fluid in through a fluid inlet 212, the fluid passes
the PCB 90, is drawn through the fan unit 70 and through the heater
80, which optionally heats the fluid, and is then emitted by the
fluid outlet 22 in the attachment 20.
[0026] The handle 210 has an outer wall 200 and an inner wall 220.
The inner wall 220 has a number of functions, it houses the PCB 90
fan unit 70 and the heater 80 internally. On a radially outer
surface 220a the inner wall 220 includes multiple moulded features
to retain features of the user interface (UI) including the UI PCB
92, internal features of the user operated buttons 38, 138 which
connect the buttons to switches on the UI PCB 92 and wiring 140,
150 for example, which extends from the PCB 90 to other components
within the handle 210.
[0027] The appliance 10 is powered using a mains supply and a power
cable 102 which is attached to the appliance at the fluid inlet 212
and connects to internal wiring via a connector 100. In this
embodiment, the power supply is follows a circuit from the
connector 100 via the heater power supply 140 to the heater 80
three wires return from the heater 80 a pair of neutral wires 142,
144 and a live wire 94 to power the UI PCB which is connected by a
further wire 96 to the PCB 90 which has a connection for the motor
cable 150.
[0028] The motor cable 150 is a two core cable and is a relatively
large size. In order to stop EMC effects and to more easily package
all the different wires within the appliance, the motor cable 150
and the heater wires 140, 142, 144 are split within the product
with one located on either side of the inner wall 220. The inner
wall 220 is provided with moulded channels 110 which are formed
from ledges that extend radially outwardly from an outer surface
220a of the inner wall with retaining pips 112 that retain the
wiring in a channel 110. As the different wires 94, 96, 140, 142,
144, 150 within the appliance are different diameters, the channels
110 are formed with different widths and depths. For example and
referring to FIG. 5, the motor cable 150 has a relatively large
diameter, so the channel 110a adapted to accommodate this cable is
larger, with a longer ledge than the channel 110b adapted to
accommodate the heater power supply 140. The spacing between
channels 110 also varies according to the diameter of the wiring
housed within the channel 110.
[0029] The motor cable 150 extends from the PCB 90 to a downstream
end 70b of the motor 70 where it connects to motor contacts (not
shown). In this embodiment, the heater wiring 140, 142, 144 and the
motor cable 150 are separated for the length of the motor 70 and
the motor cable 150 attaches to the PCB 90 via a terminal 152 which
is located on the adjacent side of the PCB 90. The heater power
supply 140 is conveniently routed along the distal side of the PCB
90 so the power supply for the heater 80 and the motor 70 are
diametrically disposed along their lengths.
[0030] The channels 110 extend longitudinally along the inner wall
220; they are not necessarily continuous as this would hinder
assembly, they are long enough to retain the relevant wire so the
wires do not come out of the channel and so that different wires do
not cross. In this embodiment, the outer wall 200 fits snuggly over
the inner wall 220 so if wires are not flush with the outer surface
220a of the inner wall 220, the outer wall 200 will not slide over
the inner wall 220 during assembly of the appliance 10.
[0031] As well as channels 110 for retaining the wires, struts 120
are also provided to retain wiring in the correct position. The
struts 120 are orthogonal to the channels 110 thus, the struts 120
extend partially around the outer circumference of the inner wall
220. In contrast, the channels extend partially along the outer
circumference of the inner wall 220. The struts 120 achieve the
same effect as the channels 110, namely that of retaining the
wiring in the required location.
[0032] The invention has been described in detail with respect to a
hot styling device however, it is applicable to any appliance that
draws in a fluid and directs the outflow of that fluid from the
appliance.
[0033] The appliance can be used with or without a heater; the
action of the outflow of fluid at high velocity has a drying
effect.
[0034] The fluid that flows through the appliance is generally air,
but may be a different combination of gases or gas and can include
additives to improve performance of the appliance or the impact the
appliance has on an object the output is directed at for example,
hair and the styling of that hair.
[0035] The invention is not limited to the detailed description
given above. Variations will be apparent to the person skilled in
the art.
* * * * *