Heat dissipation structure of automobile display screen

Abstract

The utility model discloses a heat dissipation structure of an automobile display screen. The heat dissipation structure comprises a display screen body, a rear cover, a flow guide heat dissipation assembly and a heat conduction heat dissipation assembly. The flow guide heat dissipation assembly comprises a liquid cooling heat conduction plate, the liquid cooling heat conduction plate is fixedly assembled on the side, away from the display screen body, of the rear cover, a plurality of evenly-distributed heat dissipation bosses are integrally formed on the side, away from the rear cover, of the liquid cooling heat conduction plate, and a plurality of flow guide cavities are formed in the liquid cooling heat conduction plate. The multiple heat conduction heat dissipation assemblies are fixedly assembled on one side of the liquid cooling heat conduction plate, each heat conduction heat dissipation assembly comprises a heat conduction fixing plate, and a plurality of evenly-distributed heat dissipation fins are fixedly assembled on the side, away from the liquid cooling heat conduction plate, of each heat conduction fixing plate. According to the heat dissipation structure of the automobile display screen, the heat dissipation structure of the automobile display screen is simplified through the arrangement of corresponding structures, heat dissipation is conducted on the automobile display screen in a conduction heat dissipation mode, and the heat dissipation effect on the automobile display screen is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile display screen heat dissipation, specifically relates to an automobile display screen heat dissipation structure. BACKGROUND

[0002] The automobile display screen is also called vehicle-mounted display device, is a kind of display device assembled in the car, belongs to the important component part of automobile video system, is mainly used to play music, video and the image such as reversing, with the continuous development of science and technology, the function of automobile display screen is more and more, and multi-function means that the electronic components inside automobile display screen are more and more, so that the energy consumption of automobile display screen is increasing in actual operation process, simultaneously, the operation of electronic components can generate heat, and the accumulation of heat not only can influence the service life of automobile display screen electronic components, and seriously can appear short-circuit damage risk, therefore, automobile display screen heat dissipation structure plays a vital role in the stable operation of automobile display screen.

[0003] The Chinese utility model patent with patent No. CN209749019U discloses an automobile display screen heat dissipation structure, the cooling fan is provided with air pipe at the front end, the air pipe is provided with display screen back cover at the front end, the display screen back cover is provided with gas distribution pipe, the front end of display screen back cover is provided with display screen, the upper and lower ends of display screen are provided with positioning mechanism, the positioning mechanism includes locating block, reset spring rod and rubber pad, the reset spring rod is arranged in the locating block, the rubber pad is arranged at the joint of locating block and display screen, which greatly improves the practicability and service life of product.

[0004] It can be known from the content combined with the description and the drawings that the application uses the cooperation of cooling fan and gas distribution pipe to dissipate heat for automobile display screen, and this way has the problems of great use limitation and poor heat dissipation effect in actual application process, and simultaneously, the cooling fan can drive the dust and impurities in the car to adhere to the display screen back cover during operation, when this situation occurs, not only the automobile display screen is not cooled, but also the heat dissipation effect of automobile display screen is affected.

[0005] Therefore, in view of the above technical problems, it is necessary to provide an automobile display screen heat dissipation structure.

[0006] The information disclosed in this BACKGROUND section is only intended to increase an understanding of the general background of the present utility model and is not intended to be a recognition or a suggestion that this information forms a prior art that is already known in the art. UTILITY MODEL CONTENT

[0007] The utility model discloses a kind of automobile display screen heat dissipation structure, it can simplify the heat dissipation structure of automobile display screen, improve the heat dissipation effect of automobile display screen.

[0008] To achieve the above object, the utility model discloses a kind of automobile display screen heat dissipation structure, comprising: display screen main body, back cover, flow guide heat dissipation component, heat conduction heat dissipation component.

[0009] The side of the display screen main body is fitted with a back cover.

[0010] The flow guide heat dissipation component is fixedly assembled on one side of the back cover, and the flow guide heat dissipation component includes a liquid cooling heat plate, which is fixedly assembled on the side of the back cover away from the display screen main body. A plurality of evenly distributed heat dissipation bosses are integrally formed on the side of the liquid cooling heat plate away from the back cover. A plurality of flow guide cavities are formed in the liquid cooling heat plate, and the flow guide cavities are correspondingly arranged with the heat dissipation bosses.

[0011] A plurality of heat conduction heat dissipation components are fixedly assembled on one side of the liquid cooling heat plate, and the heat conduction heat dissipation component includes a heat conduction fixed plate, which is fixedly assembled between a plurality of heat dissipation bosses. A plurality of evenly distributed heat dissipation fins are fixedly assembled on the side of the heat conduction fixed plate away from the liquid cooling heat plate.

[0012] In one or more embodiments of the utility model, a heat-conducting silicone grease layer is coated between the liquid cooling heat plate and the back cover, and the two surfaces of the heat-conducting silicone grease layer are in contact with the back cover and the liquid cooling heat plate respectively. The heat-conducting silicone grease layer connects and conducts heat between the back cover and the liquid cooling heat plate.

[0013] In one or more embodiments of the utility model, assembly limiting columns are arranged around the liquid cooling heat plate. The display screen main body is assembled and positioned by assembling and fixing the assembly limiting columns, simplifying the process of assembling and positioning the display screen main body. A plurality of assembly bolt holes are formed above the liquid cooling heat plate, and the assembly bolt holes are correspondingly arranged with the assembly limiting columns. The assembly bolt holes facilitate the assembly and fixation of assembly bolts.

[0014] In one or more embodiments of the utility model, assembly bolts are threadedly connected in the assembly bolt holes, and the assembly limiting columns and the liquid cooling heat plate are connected by the assembly bolts. The assembly limiting columns and the liquid cooling heat plate are assembled and fixed by the assembly bolts.

[0015] In one or more embodiments of the utility model, a liquid adding nozzle is threadedly connected on one side of the liquid cooling heat plate, and the liquid adding nozzle is in communication with the flow guide cavities. The liquid adding nozzle delivers heat exchange fluid into the flow guide cavities, thereby facilitating liquid cooling heat dissipation of the back cover.

[0016] In one or more embodiments of the utility model, the liquid cooling heat conduction plate is internally provided with a first circulating flow channel, the liquid cooling heat conduction plate is internally provided with a plurality of first conduction flow channels, the plurality of first conduction flow channels are vertically distributed with the first circulating flow channel, and the first circulating flow channel is communicated with the plurality of flow guide cavities through the first conduction flow channel. The plurality of flow guide cavities are connected and conducted through the cooperation of the first circulating flow channel and the plurality of first conduction flow channels.

[0017] In one or more embodiments of the utility model, the liquid cooling heat conduction plate is internally provided with a second circulating flow channel, the second circulating flow channel and the first circulating flow channel are respectively arranged at two ends of the plurality of flow guide cavities, the liquid cooling heat conduction plate is internally provided with a plurality of second conduction flow channels, the plurality of second conduction flow channels are vertically distributed with the second circulating flow channel, and the plurality of flow guide cavities are communicated through the second circulating flow channel. The plurality of flow guide cavities are assisted to communicate through the cooperation of the second circulating flow channel and the plurality of second conduction flow channels, so that the heat exchange fluid can circulate in the plurality of flow guide cavities under the action of the first circulating flow channel, the plurality of first conduction flow channels and the second circulating flow channel and the plurality of second conduction flow channels, thereby ensuring the liquid cooling heat dissipation effect of the heat exchange fluid on the rear cover.

[0018] In one or more embodiments of the utility model, the heat conduction fixed plate is arranged in a U shape, and the outer surface of the heat conduction fixed plate is in contact with the heat dissipation boss and the liquid cooling heat conduction plate. The contact area of the heat conduction fixed plate, the liquid cooling heat conduction plate and the heat dissipation boss is ensured, so that the heat dissipation effect of the convection channel on the liquid cooling heat conduction plate and the heat dissipation boss is improved. The plurality of flow guide cavities are filled with heat exchange fluid. The rear cover is cooled by the heat exchange fluid.

[0019] In one or more embodiments of the utility model, the plurality of heat dissipation bosses are cooperatively formed with a conduction heat dissipation cavity, and the plurality of heat dissipation fins are cooperatively formed with a convection channel. The heat dissipation fins are convectively cooled by the air flowing through the plurality of convection channels.

[0020] Compared with the prior art, the automobile display screen heat dissipation structure disclosed by the utility model is simplified through the arrangement of the corresponding structure, the automobile display screen is cooled in a conduction heat dissipation mode, and the heat dissipation effect of the automobile display screen is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can be obtained by those skilled in the art without creating labor.

[0022] Figure 1 It is a perspective view of the automobile display screen heat dissipation structure in one embodiment of the utility model;

[0023] Figure 2 It is Figure 1 It is a structure schematic view of A in the embodiment;

[0024] Figure 3 It is a top view sectional view of the automobile display screen heat dissipation structure in one embodiment of the utility model;

[0025] Figure 4 It is Figure 3 It is a structure schematic view of B in the embodiment;

[0026] Figure 5 It is a side view sectional view of the automobile display screen heat dissipation structure in one embodiment of the utility model;

[0027] Figure 6 It is Figure 5 It is a structure schematic view of C in the embodiment;

[0028] Figure 7 It is Figure 5 It is a structure schematic view of D in the embodiment;

[0029] Figure 8 It is another angle perspective view of the automobile display screen heat dissipation structure in one embodiment of the utility model.

[0030] Main figure mark explanation:

[0031] 1 - display screen main body, 101 - back cover, 2 - flow guide heat dissipation assembly, 201 - liquid cooling heat conduction plate, 202 - heat dissipation boss, 203 - flow guide cavity, 204 - heat conduction silicone grease layer, 205 - assembly limiting column, 206 - assembly bolt, 207 - liquid filling nozzle, 208 - first circulating flow channel, 209 - first conduction flow channel, 210 - second circulating flow channel, 211 - second conduction flow channel, 3 - heat conduction heat dissipation assembly, 301 - heat conduction fixed plate, 302 - heat dissipation fin, 303 - convection channel. DETAILED DESCRIPTION

[0032] In order to make the person skilled in the art better understand the technical scheme in the utility model, the technical scheme in the embodiment of the utility model will be described clearly and completely in conjunction with the drawings in the embodiment of the utility model below. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the utility model.

[0033] As Figures 1 to 8As shown, the utility model discloses a kind of automobile display screen heat radiation structure in one embodiment, comprising: display screen main body 1, back cover 101, flow guiding heat radiation component 2, heat conduction heat radiation component 3.

[0034] As Figure 1 Shown, one side of display screen main body 1 is engaged with back cover 101 assembly. Through back cover 101 to the electronic components of display screen main body 1 is assisted assembly limit.

[0035] As Figures 1 to 4 Shown, flow guiding heat radiation component 2 is fixedly assembled in the side of back cover 101, and flow guiding heat radiation component 2 includes liquid cooling heat conducting plate 201, and liquid cooling heat conducting plate 201 is fixedly assembled in the side of back cover 101 deviating from display screen main body 1. Through liquid cooling heat conducting plate 201 to the conduction heat dissipation of back cover 101. Meanwhile, liquid cooling heat conducting plate 201 can be cooled by heat transfer fluid in the way of flowing through liquid cooling heat conducting plate 201 to back cover 101.

[0036] As Figures 3 to 4 Shown, liquid cooling heat conducting plate 201 and back cover 101 are coated with heat-conducting silicone grease layer 204, and the two sides of heat-conducting silicone grease layer 204 are respectively in contact with back cover 101 and liquid cooling heat conducting plate 201. Through heat-conducting silicone grease layer 204, back cover 101 and liquid cooling heat conducting plate 201 are connected and heat-conducted.

[0037] As Figures 1 to 4 Shown, liquid cooling heat conducting plate 201 is uniformly distributed with assembly limiting column 205 around. Through the assembly of multiple assembly limiting columns 205 is fixed to the assembly positioning of display screen main body 1, simplify the process of assembly positioning of display screen main body 1.

[0038] Specifically, a plurality of assembly bolt holes are provided above liquid cooling heat conducting plate 201, and the plurality of assembly bolt holes are correspondingly provided with assembly limiting column 205. By providing assembly bolt hole, assembly bolt 206 is conveniently assembled and fixed.

[0039] As Figures 1 to 4 Shown, assembly bolt hole is threadedly connected with assembly bolt 206, and assembly limiting column 205 and liquid cooling heat conducting plate 201 are connected by assembly bolt 206. Assembly limiting column 205 and liquid cooling heat conducting plate 201 are assembled and fixed by assembly bolt 206.

[0040] As Figures 1 to 4 Shown, a plurality of uniformly distributed heat dissipation bosses 202 are integrally formed on the side of liquid cooling heat conducting plate 201 deviating from back cover 101. By providing a plurality of heat dissipation bosses 202, the contact area of heat dissipation boss 202 with air is improved, and the effect of convective heat dissipation of heat dissipation boss 202 is improved.

[0041] As Figures 1 to 4As shown, a plurality of flow guide cavities 203 are arranged in the liquid cooling heat conduction plate 201, and the plurality of flow guide cavities 203 are arranged correspondingly to the heat dissipation bosses 202. The heat exchange fluid is circulated in the plurality of flow guide cavities 203, so as to assist in cooling the liquid cooling heat conduction plate 201, and the cooling effect of the liquid cooling heat conduction plate 201 on the rear cover 101 is improved.

[0042] Specifically, the plurality of flow guide cavities 203 are filled with heat exchange fluid. The rear cover 101 is cooled by the heat exchange fluid.

[0043] As shown in Figures 5 to 6 , one side of the liquid cooling heat conduction plate 201 is threadedly connected with a liquid adding nozzle 207, and the liquid adding nozzle 207 is communicated with the flow guide cavity 203. The heat exchange fluid is delivered into the flow guide cavity 203 through the liquid adding nozzle 207, so as to facilitate the liquid cooling of the rear cover 101.

[0044] As shown in Figures 5 to 7 , a first circulation flow channel 208 is arranged in the liquid cooling heat conduction plate 201, a plurality of first through flow channels 209 are arranged in the liquid cooling heat conduction plate 201, the plurality of first through flow channels 209 are vertically distributed with the first circulation flow channel 208, and the first circulation flow channel 208 is communicated with the plurality of flow guide cavities 203 through the first through flow channels 209. The plurality of flow guide cavities 203 are connected and conducted through the cooperation of the first circulation flow channel 208 and the plurality of first through flow channels 209.

[0045] As shown in Figures 5 to 7 , a second circulation flow channel 210 is arranged in the liquid cooling heat conduction plate 201, the second circulation flow channel 210 and the first circulation flow channel 208 are arranged at two ends of the plurality of flow guide cavities 203, respectively, a plurality of second through flow channels 211 are arranged in the liquid cooling heat conduction plate 201, the plurality of second through flow channels 211 are vertically distributed with the second circulation flow channel 210, and the plurality of groups of flow guide cavities 203 are communicated with the plurality of flow guide cavities 203 through the second circulation flow channel 210. The plurality of flow guide cavities 203 are connected and conducted through the cooperation of the second circulation flow channel 210 and the plurality of second through flow channels 211, so that the heat exchange fluid can be circulated in the plurality of flow guide cavities 203 under the action of the first circulation flow channel 208, the plurality of first through flow channels 209, the second circulation flow channel 210 and the plurality of second through flow channels 211, thereby ensuring the liquid cooling effect of the heat exchange fluid on the rear cover 101.

[0046] As shown in Figures 1 to 4 , a plurality of heat conduction heat dissipation assemblies 3 are fixedly arranged on one side of the liquid cooling heat conduction plate 201, the heat conduction heat dissipation assembly 3 comprises a heat conduction fixed plate 301, and the heat conduction fixed plate 301 is fixedly arranged between the plurality of heat dissipation bosses 202. The plurality of heat dissipation fins 302 are fixedly arranged through the heat conduction fixed plate 301. At the same time, the liquid cooling heat conduction plate 201 and the heat dissipation boss 202 are assisted in conduction heat dissipation through the heat conduction fixed plate 301.

[0047] As shown in Figures 1 to 4 The heat-conducting fixed plate 301 is fixedly assembled with a plurality of evenly distributed heat dissipation fins 302 on the side away from the liquid-cooled heat-conducting plate 201. The heat-conducting fixed plate 301 is convectively cooled by the plurality of heat dissipation fins 302.

[0048] Specifically, the heat-conducting fixed plate 301 is in the shape of a trapezoidal, and the outer surface of the heat-conducting fixed plate 301 is in contact with the heat dissipation boss 202 and the liquid-cooled heat-conducting plate 201. The contact area of the heat-conducting fixed plate 301 with the liquid-cooled heat-conducting plate 201 and the heat dissipation boss 202 is ensured, thereby improving the effect of the convection channel 303 on cooling the liquid-cooled heat-conducting plate 201 and the heat dissipation boss 202.

[0049] As shown in Figures 1 to 4 The conduction heat dissipation cavities are formed between the plurality of heat dissipation bosses 202, and the convection channels 303 are formed between the plurality of heat dissipation fins 302. The heat dissipation fins 302 are convectively cooled by the air flowing through the convection channels 303.

[0050] In specific use, the heat exchange fluid can be delivered into the flow guide cavities 203 through the liquid feeding nozzle 207, and the liquid-cooled heat-conducting plate 201 and the rear cover 101 are connected and fixed by the heat-conducting silicone grease layer 204. Moreover, the display screen body 1 can be assembled and fixed by assembling the limiting column 205 and the assembly bolt 206.

[0051] In use, the heat generated by the rear cover 101 can be conducted by the heat-conducting silicone grease layer 204, and the heat exchange fluid can be used to assist the liquid-cooled heat-conducting plate 201 and the heat-conducting silicone grease layer 204 in cooling and dissipating heat from the rear cover 101 by flowing through the plurality of flow guide cavities 203. The heat exchange fluid in the plurality of flow guide cavities 203 can flow through the first circulating flow channel 208 and the first flow channel 209, and the second circulating flow channel 210 and the second flow channel 211, thereby improving the heat exchange effect of the heat exchange fluid on the liquid-cooled heat-conducting plate 201.

[0052] In addition, the heat dissipation boss 202 and the liquid-cooled heat-conducting plate 201 can be cooled and dissipated by the heat-conducting fixed plate 301, and the heat-conducting fixed plate 301 can be convectively cooled by the plurality of heat dissipation fins 302, thereby improving the cooling and heat dissipation effect of the rear cover 101.

[0053] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0054] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every embodiment according to the present specification needs to exhibit each and every characteristic specified in the present specification. The specification can also be described in terms of a single independent technical solution, but this does not mean that each embodiment only contains one independent technical solution. The specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by a person skilled in the art.

Claims

1. An automobile display screen heat dissipation structure, characterized in that, The utility model relates to a display screen, including: The one side of display screen main part is assembled with back cover, The liquid cooling heat conduction plate is fixedly assembled at the side of back cover away from display screen main part, the one side of liquid cooling heat conduction plate away from back cover is integrative and is formed with a plurality of evenly distributed heat dissipation bosses, a plurality of flow guide cavities are formed in the liquid cooling heat conduction plate, and a plurality of flow guide cavities are correspondingly arranged with heat dissipation bosses, A plurality of heat conduction heat dissipation assemblies are fixedly assembled at the side of liquid cooling heat conduction plate, the heat conduction heat dissipation assembly includes heat conduction fixed plate, the heat conduction fixed plate is fixedly assembled between a plurality of heat dissipation bosses, and the side of heat conduction fixed plate away from liquid cooling heat conduction plate is fixedly assembled with a plurality of evenly distributed heat dissipation fins.

2. The heat dissipation structure of an automobile display screen according to claim 1, characterized in that, The heat conduction silicon grease layer is coated between the liquid cooling heat conduction plate and back cover, and the two surfaces of the heat conduction silicon grease layer are respectively in contact with back cover and liquid cooling heat conduction plate.

3. The heat dissipation structure of a display screen of an automobile according to claim 1, characterized in that, A plurality of assembly limiting columns are evenly arranged around the liquid cooling heat conduction plate, a plurality of assembly bolt holes are formed above the liquid cooling heat conduction plate, and a plurality of assembly bolt holes are correspondingly arranged with assembly limiting columns.

4. The heat dissipation structure of a display screen of an automobile according to claim 3, characterized in that, The assembly limiting columns are connected with the liquid cooling heat conduction plate through assembly bolts.

5. The heat dissipation structure of a display screen of an automobile according to claim 1, characterized in that, A liquid adding nozzle is threadedly connected at the side of liquid cooling heat conduction plate, and the liquid adding nozzle is communicated with flow guide cavities.

6. The heat dissipation structure of a display screen of an automobile according to claim 1, characterized in that, A first circulating flow channel is formed in the liquid cooling heat conduction plate, a plurality of first through-flow channels are formed in the liquid cooling heat conduction plate, a plurality of first through-flow channels are vertically distributed with the first circulating flow channel, and the first circulating flow channel is communicated with a plurality of flow guide cavities through the first through-flow channels.

7. The heat dissipation structure of a display screen of an automobile according to any one of claims 2, 3, 4 or 5, characterized in that, A first circulating flow channel is formed in the liquid cooling heat conduction plate, a plurality of first through-flow channels are formed in the liquid cooling heat conduction plate, a plurality of first through-flow channels are vertically distributed with the first circulating flow channel, and the first circulating flow channel is communicated with a plurality of flow guide cavities through the first through-flow channels.

8. The heat dissipation structure of a display screen of an automobile according to claim 6, characterized in that, A second circulating flow channel is formed in the liquid cooling heat conduction plate, the second circulating flow channel and the first circulating flow channel are respectively arranged at the two ends of a plurality of flow guide cavities, a plurality of second through-flow channels are formed in the liquid cooling heat conduction plate, a plurality of second through-flow channels are vertically distributed with the second circulating flow channel, and a plurality of flow guide cavities are communicated with a plurality of flow guide cavities through the second circulating flow channel.

9. The heat dissipation structure of an automobile display screen according to claim 1, characterized in that, The heat conduction fixed plate is arranged in the shape of a U, the outer surface of the heat conduction fixed plate is in contact with heat dissipation bosses and liquid cooling heat conduction plate, and a plurality of flow guide cavities are filled with heat exchange fluid.

10. The heat dissipation structure of an automobile display screen according to claim 1, characterized in that, A plurality of heat dissipation bosses are matched to form a conduction heat dissipation cavity, and a plurality of heat dissipation fins are matched to form a convection channel.

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