CN208141093U - Backlight module for abnormity screen - Google Patents
Backlight module for abnormity screen Download PDFInfo
- Publication number
- CN208141093U CN208141093U CN201820809982.2U CN201820809982U CN208141093U CN 208141093 U CN208141093 U CN 208141093U CN 201820809982 U CN201820809982 U CN 201820809982U CN 208141093 U CN208141093 U CN 208141093U
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- CN
- China
- Prior art keywords
- heat
- heat exchanger
- dissipating pipe
- exchanger tube
- backlight module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The utility model belongs to lighting device or the functional character or parts technical field of its system, specifically discloses a kind of backlight module for abnormity screen.Including frame, light emitting diode and light guide plate, heat-dissipating pipe is additionally provided in frame, heat-dissipating pipe and light emitting diode contacts, frame outer wall is equipped with heat exchanger tube, inlet tube and outlet tube are equipped between heat-dissipating pipe and heat exchanger tube, it is perfused with insulating oil in heat-dissipating pipe and heat exchanger tube, the driving mechanism for driving insulating oil to flow is additionally provided in heat exchanger tube, the driving mechanism is driven by the variation of self-position.Purpose is to solve the problem of that generating electric heating when current light emitting diode is powered causes backlight module temperature to increase.
Description
Technical field
The utility model belongs to lighting device or the functional character or parts technical field of its system, specifically discloses one
Backlight module of the kind for abnormity screen.
Background technique
Backlight module is one of the key part and component of smartwatch panel of LCD.Since liquid crystal itself does not shine,
Therefore backlight module is needed to provide light source, therefore the light that the function of backlight module is well-off brightness and is evenly distributed
Source enables liquid crystal normally to show image.
Common light-emitting component is light emitting diode (LED) and cold cathode tube (CCFL) in backlight module at present, is shone
Diode has many advantages, such as that low in energy consumption, the service life is long, environmentally friendly, therefore on the market gradually as a kind of novel light-emitting component
Replace cold cathode tube, becomes the light-emitting component of mainstream, but light emitting diode is during the work time, can generate a large amount of electricity
Heat, and be installed in a framework since backlight module is usually fixed, the heat that light emitting diode generates is difficult to be dissipated
Hair causes backlight module temperature to increase, leads to the lost of life of backlight or even electronic equipment.
Utility model content
The utility model discloses a kind of backlight modules for abnormity screen, it is therefore intended that it is logical to solve current light emitting diode
When electric, lead to the problem of electric heating and backlight module temperature is caused to increase.
The base case of the utility model is：For the backlight module of abnormity screen, including frame, light emitting diode and leaded light
Plate, is additionally provided with heat-dissipating pipe, heat-dissipating pipe and light emitting diode contacts in frame, and frame outer wall is equipped with heat exchanger tube, heat-dissipating pipe with change
It is equipped with inlet tube and outlet tube between heat pipe, is perfused with insulating oil in heat-dissipating pipe and heat exchanger tube, is additionally provided with and is used in heat exchanger tube
The driving mechanism of insulating oil flowing is driven, the driving mechanism generates kinetic energy by the variation of self-position.
The technical principle of the utility model is：When backlight module work, lumination of light emitting diode simultaneously generates heat, shines
The heat of diode is imported in the insulating oil inside heat-dissipating pipe by heat-dissipating pipe, so that the insulation oil temperature in heat-dissipating pipe increases, when
When user carries the utility model movement, the position change of the utility model just makes exhausted in driving mechanism driving heat-dissipating pipe
Edge oil stream is dynamic, so that the insulating oil in heat-dissipating pipe flows into heat exchanger tube, the insulating oil in heat exchanger tube is flowed into heat-dissipating pipe, by
The heat of light emitting diode generation is absorbed in heat-dissipating pipe interior insulation oil, therefore temperature is higher than the insulating oil in heat exchanger tube, so
After insulating oil in heat exchanger tube enters heat-dissipating pipe, cooling effect is played to light emitting diode, while making the insulation in heat-dissipating pipe
Oil moves in the heat exchanger tube outside frame, cools down.
The beneficial effects of the utility model are：
1. the utility model is by setting driving mechanism, so that being driven when user carries outgoing the utility model or movement
Motivation structure just drives insulating oil to flow, and is not necessarily to electric energy, more environmentally friendly and energy saving.
2. insulating oil is perfused in heat exchanger tube and heat-dissipating pipe by setting heat exchanger tube and heat-dissipating pipe in the utility model,
Since the specific heat capacity of insulating oil is higher than air, so that the temperature in frame rises compared to the prior art more slowly, temperature is avoided
Degree rises sharply, while by the flowing of the insulating oil in heat exchanger tube and heat-dissipating pipe, so that insulating oil constantly absorbs light emitting diode and dissipates
The heat of hair then flows in the heat exchanger tube outside frame, by outside the heat derives to frame in frame, so that the temperature in frame
Degree reduces.
Further, the driving mechanism includes cam, and cam is located at outside heat exchanger tube, and shaft is connected on the cam, convex
Unilateral bearing and wind spring are equipped between wheel and shaft, shaft passes through heat exchanger tube, and the part that shaft is located in heat exchanger tube is coaxially fixed
It is connected with driving bevel gear, driving bevel gear is engaged with drive bevel gear, and drive bevel gear has been fixedly and coaxially connected transmission shaft, passes
Moving axis is equipped with flabellum, and the positioning mechanism for making transmission shaft remain parallel to heat-dissipating pipe length direction is additionally provided on transmission shaft.
When by above-mentioned design, so that user carries the utility model movement, position and posture with moving cam constantly change, because
, according to maximum energy criterion, cam just has the trend for moving to minimum energy state always for this, thus drive shaft, and then make
It obtains driving bevel gear and drives drive bevel gear and transmission shaft, it is final to drive flabellum rotation, realize the flowing of insulating oil.
Further, the positioning mechanism includes the lasso being rotationally connected on transmission shaft, covers ring outer wall and heat transfer tube wall
Between be fixedly connected with locating rod.By above-mentioned design, guarantee the stable rotation of transmission shaft.
Further, the shaft is equipped at card slot, with the card slot same level height far from one end of cam and is equipped with card
Bar is closed, reseting pressuring spring is equipped between clamping rpole and frame, through-hole is provided on clamping rpole, shaft passes through through-hole and slides simultaneously with through-hole
Rotation connection, through-hole is interior to be equipped with the protrusion cooperated with card slot.By above-mentioned design, so that when the pressing fastened bar of user, engaging
Bar just drives protrusion to leave card slot, so that shaft is no longer limited by protrusion, so that shaft is freely rotated, and cam at this time
The elastic potential energy for driving wind spring to be continued in rotation process is released, so that shaft rotates, and then drives flabellum rotation, so that
It can judge whether to need to cool down according to their own needs with user.
Further, being equipped in the inlet tube only allows liquid to flow into the check valve in heat-dissipating pipe, sets in the outlet tube
There is the check valve for only allowing liquid to flow out heat-dissipating pipe.Insulating oil is avoided to flow backwards by above-mentioned design.
Detailed description of the invention
Fig. 1 is the elevational cross-sectional view of the utility model embodiment；
Fig. 2 is the overhead sectional view of the utility model embodiment；
Fig. 3 is the enlarged structure schematic diagram in Fig. 1 at A.
Specific embodiment
It is further described below by specific embodiment：
Appended drawing reference in Figure of description includes：Frame 1, light emitting diode 2, light guide plate 3, inlet tube 4, heat dissipation copper pipe
5, outlet tube 6, heat exchanger tube 7, shaft 8, cam 9, unilateral bearing 10, wind spring 11, driving bevel gear 12, drive bevel gear 13, fixed
Position bar 14, clamping rpole 15, through-hole 16, card slot 17, raised 18, reseting pressuring spring 19.
Embodiment is substantially as shown in Fig. 1：A kind of backlight module for abnormity screen, the frame 1 including being in rectangle, frame
The heat dissipation copper pipe 5 in rectangle is fixedly installed on 1 inner bottom surface, heat dissipation copper pipe 5 offsets with 1 inner wall of frame, on 1 inner bottom surface of frame also
Successively be fixedly installed with light emitting diode 2 and light guide plate 3 from left to right, light emitting diode 2 be parallel to 1 left side wall of frame and with
Heat dissipation copper pipe 5 offsets.It is coated with heat-conducting silicone grease between heat dissipation copper pipe 5 and light emitting diode 2, is fixedly installed with and changes in 1 left wall of frame
Hot copper pipe, as shown in Fig. 2, being provided with outlet tube 6 and inlet tube 4 on 1 side wall of frame between heat exchange copper tube and heat dissipation copper pipe 5, out
Liquid pipe 6 and 4 left end of inlet tube are connected to right end with heat exchange copper tube and are connected to heat dissipation copper pipe 5, and being fixedly installed in outlet tube 6 only allows
Liquid flows out the check valve of heat dissipation copper pipe 5, and the check valve for only allowing liquid to flow into heat dissipation copper pipe 5 is fixedly installed in inlet tube 4,
As shown in figure 3, being equipped with shaft 8 in heat exchange copper tube, 8 top and bottom of shaft rotate respectively and hermetically stretch out heat exchange copper tube
Upper wall and lower wall, 8 lower end of shaft are fixedly installed with cam 9, unilateral bearing 10 and wind spring 11 are equipped between cam 9 and shaft 8,
Unilateral bearing 10 is located at 11 top of wind spring, and the part that shaft 8 is located in heat exchanger tube 7 is coaxially fixedly installed with driving bevel gear 12,
Driving bevel gear 12 is engaged with drive bevel gear 13, and drive bevel gear 13 has been fixedly and coaxially connected transmission shaft, coaxial on transmission shaft
It is rotatably connected to positioning sleeve, integrally formed with locating rod 14 on positioning sleeve outer wall, locating rod 14 is fixed with the left inside wall of heat exchange copper tube
Connection, locating shaft are fixedly installed with flabellum far from one end of drive bevel gear 13, and the part that shaft 8 stretches out heat exchange copper tube upper wall is right
It is provided with card slot 17 on side wall, clamping rpole 15 is installed above heat exchange copper tube, through-hole 16 is provided on clamping rpole 15, shaft 8 passes through logical
Hole 16, integrally formed with the protrusion 18 cooperated with card slot 17 on the right inner wall of through-hole 16,15 right end of clamping rpole and 1 left side wall of frame it
Between be fixedly installed with reseting pressuring spring 19, be perfused with insulating oil in heat dissipation copper pipe 5 and heat exchange copper tube.
Specific implementation process is as follows：It is a kind of disclosed in the present embodiment to be installed on intelligence for the special-shaped backlight module shielded
When in wrist-watch, so that the volume key on clamping rpole 15 and smartwatch is offseted, (the present embodiment is also possible to other by taking volume key as an example
Key), when user wears smartwatch walking, with the continuous swing of arm, cam 9 is under the effect of gravity constantly around turning
8 positive and negative rotation of axis (just switchs to rotate clockwise), and when cam 9 rotates forward, under the action of unilateral bearing 10, shaft 8 is remain stationary
And cam 9 rotates, therefore cam 9 drives wind spring 11 to wind, so that the mechanical energy of cam 9 is converted to elastic potential energy by wind spring 11,
And at this time under the action of reseting pressuring spring 19, the protrusion 18 on 16 inner wall of through-hole is inserted into card slot 17, so that shaft 8 can not turn
Dynamic, when cam 9 inverts, the rolling element in unilateral bearing 10 is locked, simultaneously because shaft 8 can not be turned by 18 limit of protrusion
It is dynamic, so that cam 9 can not invert.
In smartwatch use process, when backlight module works, light emitting diode 2 generates heat while being powered and shine
Amount, heat are conducted by heat dissipation copper pipe 5 into the insulating oil in heat dissipation copper pipe 5, and when user, which perceives temperature, to be increased, user is pressed
Lower volume key, volume key push clamping rpole 15, so that protrusion 18 is not inserted into card slot 17, so that shaft 8 is able to freedom
Rotation, at this time under the elastic force effect of wind spring 11, so that shaft 8 rotates, shaft 8 drives driving bevel gear 12 to rotate, and drives
Dynamic bevel gear 12 drives drive bevel gear 13 to rotate, and drive bevel gear 13 drives flabellum to rotate by transmission shaft, so that heat exchange copper
Insulating oil in pipe starts to flow, so that the insulating oil in heat dissipation copper pipe 5 flows into heat exchange copper tube, due to heat dissipation copper pipe 5
Outside frame 1, so that the heat in frame 1 is transferred to outside frame 1, radiating efficiency is improved, and it is low in heat exchange copper tube
Warm insulating oil enters in heat dissipation copper pipe 5, so that 5 temperature of heat dissipation copper pipe reduces, so that backlight module temperature reduces.
Above-described is only the embodiments of the present invention, and the common sense such as well known specific structure and characteristic are herein in scheme
It does not describe excessively.It should be pointed out that for those skilled in the art, in the premise for not departing from the utility model structure
Under, several modifications and improvements can also be made, these also should be considered as the protection scope of the utility model, these all will not influence
The effect and patent practicability that the utility model is implemented.
Claims (5)
1. the backlight module for abnormity screen, it is characterised in that：Including frame, light emitting diode and light guide plate, also set in frame
Have heat-dissipating pipe, heat-dissipating pipe and a light emitting diode contacts, frame outer wall is equipped with heat exchanger tube, be equipped between heat-dissipating pipe and heat exchanger tube into
It is perfused with insulating oil in liquid pipe and outlet tube, heat-dissipating pipe and heat exchanger tube, is additionally provided in heat exchanger tube for driving insulating oil to flow
Driving mechanism, the driving mechanism by self-position variation generate kinetic energy.
2. the backlight module according to claim 1 for abnormity screen, it is characterised in that：The driving mechanism includes convex
Wheel, cam are located at outside heat exchanger tube, and shaft is connected on the cam, and unilateral bearing and wind spring are equipped between cam and shaft, turn
Axis passes through heat exchanger tube, and the part that shaft is located in heat exchanger tube has been fixedly and coaxially connected driving bevel gear, and driving bevel gear is engaged with
Drive bevel gear, drive bevel gear have been fixedly and coaxially connected transmission shaft, and transmission shaft is equipped with flabellum, is additionally provided with and is used on transmission shaft
Transmission shaft is set to remain parallel to the positioning mechanism of heat-dissipating pipe length direction.
3. the backlight module according to claim 2 for abnormity screen, it is characterised in that：The positioning mechanism includes rotation
The lasso being connected on transmission shaft covers and is fixedly connected with locating rod between ring outer wall and heat transfer tube wall.
4. the backlight module according to claim 3 for abnormity screen, it is characterised in that：The shaft far from cam one
End, which is equipped at card slot, with the card slot same level height, is equipped with clamping rpole, and reseting pressuring spring, card are equipped between clamping rpole and frame
It closes and is provided with through-hole on bar, shaft passes through through-hole and slides and be rotatablely connected with through-hole, and the protrusion cooperated with card slot is equipped in through-hole.
5. the backlight module according to claim 4 for abnormity screen, it is characterised in that：It is equipped in the inlet tube and only permits
Perhaps liquid flows into the check valve in heat-dissipating pipe, and the check valve for allowing liquid to flow out heat-dissipating pipe is equipped with only in the outlet tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820809982.2U CN208141093U (en) | 2018-05-28 | 2018-05-28 | Backlight module for abnormity screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820809982.2U CN208141093U (en) | 2018-05-28 | 2018-05-28 | Backlight module for abnormity screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208141093U true CN208141093U (en) | 2018-11-23 |
Family
ID=64314549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820809982.2U Expired - Fee Related CN208141093U (en) | 2018-05-28 | 2018-05-28 | Backlight module for abnormity screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208141093U (en) |
-
2018
- 2018-05-28 CN CN201820809982.2U patent/CN208141093U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181123 Termination date: 20210528 |