CN207833167U - A kind of radiator structure, backlight module and liquid crystal module - Google Patents
A kind of radiator structure, backlight module and liquid crystal module Download PDFInfo
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- CN207833167U CN207833167U CN201820224280.8U CN201820224280U CN207833167U CN 207833167 U CN207833167 U CN 207833167U CN 201820224280 U CN201820224280 U CN 201820224280U CN 207833167 U CN207833167 U CN 207833167U
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- Prior art keywords
- heat sink
- liquid crystal
- heat
- radiator structure
- single cavity
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Abstract
The utility model belongs to liquid panel technique field, discloses a kind of radiator structure, backlight module and liquid crystal module.The wherein described radiator structure includes the first heat sink and the second heat sink for being connect with the first heat sink, and the outside of the second heat sink is connected with third heat sink by the first heat-conducting glue, and single cavity is equipped in third heat sink, and the bottom of single cavity is equipped with refrigerant.The utility model on third heat sink by opening up single cavity, and inject refrigerant into single cavity, when LED light bar temperature increases, refrigerant suction heat in single cavity, become gaseous state to rise from lower to upper, since external temperature is relatively low when reaching single cavity top, gaseous refrigerant release heat is condensed into liquid and falls after rise to bottom, such circulation cooling, it is poor that there are heat dissipation effects to solving the problems, such as the radiator structure of available liquid crystal module.
Description
Technical field
The utility model is related to a kind of liquid panel technique field more particularly to radiator structure, backlight module and liquid crystal moulds
Group.
Background technology
Under normal circumstances, the backlight heat dissipation of liquid crystal module uses conventional aluminium or copper radiator free convection, without increasing
Add other active forced convertions or phase-change heat radiating device.But as liquid crystal display panel resolution ratio constantly increases, penetrance also drops therewith
It is low.The penetrance of leading 8K (7680 × 4320 pixel resolution) panel is compared with 4K (3840 × 2160 pixel resolution)
It is greatly reduced again, needs the backlight of more high brightness in this way.Meanwhile HDR (High-Dynamic Range, high dynamic range images)
Etc. technologies also cause partial picture region to need the brightness (1000int or so) for reaching superelevation.In this context, LED
Power steeply rises, and common radiator structure cannot be satisfied demand.
This kind of powerful liquid crystal display panel (Open cell) needs simultaneously：1, LED temperature is controlled in reasonable interval；
2, complete machine thickness cannot be too big.Under conditions of not increasing fan and water pump, existing common means are that one is milled out on aluminium extruded
Road slot, and heat pipe is bonded on aluminium extruded with heat-conducting glue, this method can rapidly be distributed the heat at the ends LED by heat pipe
It goes out.But common aluminum radiator structure cannot be satisfied good cooling requirements in the case where volume is limited.
Utility model content
The purpose of this utility model is to provide a kind of radiator structure, backlight module and liquid crystal modules, to solve existing liquid
There is heat dissipation effect difference in the radiator structure of brilliant module.
For this purpose, the utility model uses following technical scheme：
A kind of radiator structure, including：
First heat sink；
Second heat sink, with the first heat sink vertical connection；
Third heat sink, for the outside with the second heat sink by heat conduction glue connection, third heat sink is interior to be equipped with single sky
The bottom of chamber, single cavity is equipped with refrigerant.
Preferably, the shape of third heat sink is rectangle or L-shaped.
It is made of aluminum or copper preferably, stating the first heat sink, the second heat sink and third heat sink.
Preferably, refrigerant is liquid nitrogen, liquefied ammonia or water.
A kind of backlight module, including above-mentioned radiator structure further include the heat-conducting glue being sequentially arranged on the first heat sink, lamp
Substrate and LED light bar.
Preferably, further including reflector plate, light guide plate, optical diaphragm and the liquid crystal surface being sequentially arranged on the inside of the second heat sink
The side of plate, light guide plate is opposite with LED light bar.
Preferably, one end of liquid crystal display panel and COF connect, the other end of COF is connect with master control borad.
A kind of liquid crystal module, including above-mentioned backlight module, further include be sequentially arranged in backboard on the outside of third heat sink and
Master control borad protective cover.
Preferably, further including center, one end of center is set between liquid crystal display panel and optical diaphragm, and the other end is set to the
Below one heat sink.
Preferably, further including surface frame, one end of surface frame is set to the outside of liquid crystal display panel, and the other end is set to liquid crystal module
Bottom.
The beneficial effects of the utility model：
The utility model injects refrigerant by opening up single cavity on third heat sink into single cavity, when
When LED light bar temperature increases, the refrigerant suction heat in single cavity becomes gaseous state and rises from lower to upper, reaches single cavity
Since external temperature is relatively low when top, gaseous refrigerant release heat is condensed into liquid and falls after rise to bottom, such circulation cooling,
It is poor that there are heat dissipation effects to solving the problems, such as the radiator structure of available liquid crystal module.
Description of the drawings
Fig. 1 is the side view of the radiator structure of liquid crystal module in the prior art；
Fig. 2 is the side view of the radiator structure of liquid crystal module provided by the utility model；
Fig. 3 is the side view of liquid crystal module in the prior art；
Fig. 4 is side view of the utility model using the liquid crystal module of radiator structure in Fig. 2.
In figure：
11, the first heat sink；12, the second heat sink；13, the first heat-conducting glue；14, third heat sink；141, single cavity；
21, the second heat-conducting glue；22, lamp bar substrate；23, LED light bar；
31, reflector plate；32, light guide plate；33, optical diaphragm；34, liquid crystal display panel；35、COF；36, master control borad；
41, backboard；42, master control borad protective cover；43, center；44, surface frame.
Specific implementation mode
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
Referring to Fig. 1, Fig. 1 is the side view of the radiator structure of liquid crystal module in the prior art, existing radiator structure includes
First heat sink 11 and with 11 the second heat sink of vertical connection 12 of the first heat sink, led successively equipped with second on the first heat sink 11
Hot glue 21, lamp bar substrate 22 and LED light bar 23 generate LED light bar 23 by the first heat sink 11 and the second heat sink 12
Heat radiates.
Referring to Fig. 2, Fig. 2 is the side view of the radiator structure of liquid crystal module provided by the utility model, the radiator structure
It is with existing radiator structure difference shown in Fig. 1：The outside of second heat sink 12 is connected with by the first heat-conducting glue 13
Three heat sinks 14, third heat sink 14 is interior to be equipped with single cavity 141, and single cavity 141 is equipped with refrigerant.
Specifically, the shape of third heat sink 14 is rectangle or L-shaped, preferably L-shaped, and L-shaped right angle section is passed through
Heat-conducting glue is fitted closely with the second heat sink 12, not only reduces the volume and weight of third heat sink 14, and is also reduced
Cost of manufacture, while can also reach with third heat sink 14 identical heat dissipation effect when being rectangle.In addition, the first heat-conducting glue 13
Both it can play the role of third heat sink 14, the heat conduction effect between the second heat sink 12 and third heat sink 14 can also be promoted
Rate.
Specifically, to further increase heat transfer efficiency, it is preferable that the first heat sink 11, the second heat sink 12 and third dissipate
Hot plate 14 is made of aluminum or copper, since aluminium and copper have the characteristics that high thermal conductivity coefficient and production cost are relatively low.
Specifically, above-mentioned refrigerant can be liquid nitrogen, liquefied ammonia or water, in the utility model, not make to the type of refrigerant
It is specific to limit.The utility model is equivalent by injecting a certain amount of liquid nitrogen or other effects after vacuumizing under a certain pressure
Liquid cooling medium, absorbs the heat and rapid spatial expansion of LED light bar 23, and the cooling medium of gas phase quickly fills with entire chamber
Body, the phenomenon that will generating condensation when gas-phase working medium touches one than colder region, release by the phenomenon that condensation
The heat accumulated in evaporation, to improve heat dissipation effect.
The utility model injects system into single cavity 141 by opening up single cavity 141 on third heat sink 14
Cryogen, when 23 temperature of LED light bar increases, the refrigerant suction heat in single cavity 141 becomes gaseous state and rises from lower to upper,
Since external temperature is relatively low when reaching single 141 top of cavity, gaseous refrigerant release heat is condensed into liquid and falls after rise to list
One cavity, 141 bottom, such circulation cooling.
Referring to Fig. 3, the side view of Fig. 3 liquid crystal modules in the prior art, which includes backlight module, backlight mould
Group includes radiator structure as shown in Figure 2, further includes the second heat-conducting glue 21, the lamp bar substrate being sequentially arranged on the first heat sink 11
22 and LED light bar 23, the heat transfer for being generated LED light bar 23 using the first heat sink 11 pass through to the second heat sink 12
First heat-conducting glue 13 and third heat sink 14 radiate to this partial heat.
Please continue to refer to Fig. 3, above-mentioned backlight module further includes the reflector plate 31 for being sequentially arranged in 12 inside of the second heat sink, leads
The outside of tabula rasa 32, optical diaphragm 33 and liquid crystal display panel 34, light guide plate 32 is opposite with LED light bar 23.Liquid crystal display panel 34 is by double
Papula celloidin (not shown) is set on optical model sheet 33, and LED light bar 23 is located at the incident side of light guide plate 32, LED light bar 23
The light sent out successively passes through conduction, the reflection of reflector plate 31 and the processing of optical model sheet 33 of light guide plate 32, is finally irradiated in liquid
In crystal panel 34.
Please continue to refer to Fig. 3, which further includes being sequentially arranged in backboard 41 and the master control in 14 outside of third heat sink
Plate protective cover 42, liquid crystal display panel 34 are connect with one end of COF35, and the other end of COF35 is connect with master control borad 36.Master control borad is protected
Cover 42 is located at the back side of master control borad 36, and covers master control borad 36, plays the dust-proof and tamper-proof effect of master control borad 36.
Please continue to refer to Fig. 3, which further includes center 43 and surface frame 44, and one end of center 43 is set to liquid crystal display panel
Between 34 and optical diaphragm 33, the other end is set to 11 lower section of the first heat sink, and center 43 plays the role of accommodating backlight module；Face
One end of frame 44 is set to the outside of liquid crystal display panel 34, and the other end is set to the bottom of liquid crystal module.It will by using two-sided foam rubber
Liquid crystal display panel 34 is fixed on center 43 and backlight module, can not only make backlight module need not be solid using screw with center 43
It is fixed so that liquid crystal module it is specious at low cost；And two-sided foam rubber has elasticity, even if backlight module is deformed,
The appearance of center 43 will not be had an impact；In addition two-sided foam rubber has cushioning effect, can be played to liquid crystal display panel 34
Good protective effect prevents 32 deformation expansion of light guide plate and liquid crystal display panel 34 arches upward.
Referring to Fig. 4, Fig. 4 is side view of the utility model using the liquid crystal module of radiator structure in Fig. 2, carried in Fig. 4
Available liquid crystal module difference in the liquid crystal module and Fig. 3 of confession is：The outside of second heat sink 12 passes through the first heat-conducting glue
13 are connected with third heat sink 14, single cavity 141 are equipped in third heat sink 14, single cavity 141 is equipped with refrigerant.This reality
Solves the heat dissipation knot of available liquid crystal module by using radiator structure shown in Fig. 2 with a kind of liquid crystal module of novel offer
There is heat dissipation effect difference in structure.
Obviously, above-described embodiment of the utility model is used for the purpose of clearly illustrating the utility model example, and
It is not the restriction to the embodiment of the utility model.For the ordinary skill user of fields, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
It is exhaustive.All any modification, equivalent and improvement made within the spirit and principle of the present invention etc., should be included in
Within the protection domain of the utility model claims.
Claims (10)
1. a kind of radiator structure, which is characterized in that including：
First heat sink (11)；
Second heat sink (12) is connect with first heat sink (11)；
Third heat sink (14) is connect with the outside of second heat sink (12) by the first heat-conducting glue (13), and described
Single cavity (141) is equipped in three heat sinks (14), the bottom of the single cavity (141) is equipped with refrigerant.
2. radiator structure according to claim 1, which is characterized in that the shape of the third heat sink (14) be rectangle or
L-shaped.
3. radiator structure according to claim 1, which is characterized in that first heat sink (11), second heat dissipation
Plate (12) and the third heat sink (14) are made of aluminum or copper.
4. radiator structure described in any one of claim 1 to 3, which is characterized in that the refrigerant is liquid nitrogen, liquefied ammonia
Or water.
5. a kind of backlight module, which is characterized in that including radiator structure as described in any one of claims 1 to 4, further include
The second heat-conducting glue (21), lamp bar substrate (22) and the LED light bar (23) being sequentially arranged on first heat sink (11).
6. backlight module according to claim 5, which is characterized in that further include being sequentially arranged in second heat sink (12)
Reflector plate (31), light guide plate (32), optical diaphragm (33) and the liquid crystal display panel (34) of inside, the outside of the light guide plate (32) with
The LED light bar (23) is opposite.
7. backlight module according to claim 6, which is characterized in that one end of the liquid crystal display panel (34) and COF (35)
Connection, the other end of the COF (35) are connect with master control borad (36).
8. a kind of liquid crystal module, which is characterized in that further include being sequentially arranged in including backlight module as claimed in claims 6 or 7
Backboard (41) on the outside of the third heat sink (14) and master control borad protective cover (42).
9. liquid crystal module according to claim 8, which is characterized in that further include center (43), the one of the center (43)
End is set between the liquid crystal display panel (34) and the optical diaphragm (33), and the other end is set under first heat sink (11)
Side.
10. liquid crystal module according to claim 8, which is characterized in that further include surface frame (44), the one of the surface frame (44)
End is set to the bottom of the liquid crystal module set on the outside of the liquid crystal display panel (34), the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820224280.8U CN207833167U (en) | 2018-02-08 | 2018-02-08 | A kind of radiator structure, backlight module and liquid crystal module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820224280.8U CN207833167U (en) | 2018-02-08 | 2018-02-08 | A kind of radiator structure, backlight module and liquid crystal module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207833167U true CN207833167U (en) | 2018-09-07 |
Family
ID=63397534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820224280.8U Expired - Fee Related CN207833167U (en) | 2018-02-08 | 2018-02-08 | A kind of radiator structure, backlight module and liquid crystal module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207833167U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114296275A (en) * | 2022-03-01 | 2022-04-08 | 深圳市志城电子有限公司 | Liquid crystal display backlight source heat radiation structure |
| CN114607964A (en) * | 2022-03-17 | 2022-06-10 | 深圳市瀚达美电子有限公司 | Side-in type LED backlight source with integrated heat pipe and manufacturing method |
-
2018
- 2018-02-08 CN CN201820224280.8U patent/CN207833167U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114296275A (en) * | 2022-03-01 | 2022-04-08 | 深圳市志城电子有限公司 | Liquid crystal display backlight source heat radiation structure |
| CN114607964A (en) * | 2022-03-17 | 2022-06-10 | 深圳市瀚达美电子有限公司 | Side-in type LED backlight source with integrated heat pipe and manufacturing method |
| CN114607964B (en) * | 2022-03-17 | 2022-08-23 | 深圳市瀚达美电子有限公司 | Side-in type LED backlight source with integrated heat pipe and manufacturing method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180907 Termination date: 20200208 |
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| CF01 | Termination of patent right due to non-payment of annual fee |