CN214647951U - Vehicle-mounted display screen and vehicle - Google Patents
Vehicle-mounted display screen and vehicle Download PDFInfo
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- CN214647951U CN214647951U CN202120421235.3U CN202120421235U CN214647951U CN 214647951 U CN214647951 U CN 214647951U CN 202120421235 U CN202120421235 U CN 202120421235U CN 214647951 U CN214647951 U CN 214647951U
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- display screen
- circuit board
- cooling air
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Abstract
The utility model relates to the technical field of vehicles, a vehicle-mounted display screen and vehicle are provided. The vehicle-mounted display screen is including display panel, circuit board and the radiator unit that superposes in proper order and set up, radiator unit includes peltier piece and end casing, end casing is located peltier piece is kept away from one side of circuit board, peltier piece is including relative refrigerating end and the heat dissipation end that sets up, the refrigeration terminal surface to the circuit board, peltier piece with form the heat transfer cavity between the end casing, end casing is equipped with cooling air inlet and cooling air outlet. The utility model provides an on-vehicle display screen and vehicle, through the circuit board back mounted semiconductor radiator unit at the display screen, the cooling air and the circuit board that utilize the heat transfer cavity of flowing through carry out the heat transfer, utilize semiconductor radiator unit to accelerate the thermal release of display screen, have improved on-vehicle display screen's heat-sinking capability, and then have improved on-vehicle display screen reliability and stability of using for a long time.
Description
Technical Field
The utility model relates to the technical field of vehicles, especially, relate to an on-vehicle display screen and vehicle.
Background
A center control system of a vehicle is generally equipped with a display screen. Along with the wide application of automobile intelligent equipment, the size of display screen and the intelligent application that bears thereof are also more and more to make the electronic components in the display screen also more and more, this just leads to the inside more heat that can produce of display screen. The display screen of the current vehicle has poor heat dissipation capability, and influences the reliability and stability of the display screen in long-term use.
Especially for engineering vehicles, the central control display screen takes on more functions in the operation process. For example, an excavator, a driver needs to perform information interaction with a central control system of the excavator through a display screen to ensure correct control over the excavator, and the working time of the excavator is longer, so that the heat generation of electronic components of the excavator is higher. If the display screen is not effectively radiated, the display screen is damaged due to overheating, and therefore the normal control of a driver on the vehicle is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides an on-vehicle display screen and vehicle for display screen heat dissipation ability difference in the car among the solution prior art influences the problem of reliability and stability that the display screen used for a long time.
The utility model provides an on-vehicle display screen, including display panel, circuit board and the radiator unit that superposes in proper order and set up, radiator unit includes peltier piece and end casing, end casing is located peltier piece is kept away from one side of circuit board, peltier piece is including the refrigerating end and the heat dissipation end of relative setting, the refrigeration terminal surface to the circuit board, peltier piece with form the heat transfer cavity between the end casing, end casing is equipped with cooling air import and cooling air outlet.
According to the utility model provides a pair of vehicle-mounted display screen, end casing includes the bottom and follows the outline of peltier piece encloses the lateral part of establishing and forming, the cooling air import is seted up in the bottom, the cooling air export is seted up in the lateral part.
According to the utility model provides a pair of vehicle-mounted display screen, the cooling air import is close to the one end setting of end casing, the cooling air export is close to the other end setting of end casing.
According to the utility model provides a pair of vehicle-mounted display screen, the cooling air export is including a plurality of exhaust vents of evenly arranging.
According to the utility model provides a pair of vehicle-mounted display screen, the cooling air export is tripe grid formula structure.
According to the utility model provides a pair of vehicle-mounted display screen still includes DC power supply and temperature sensor, DC power supply with the paler sticking block electricity is connected, temperature sensor with DC power supply signal connects, temperature sensor is used for detecting the temperature of circuit board.
According to the utility model provides a pair of vehicle-mounted display screen, the surface coating all around of paler paster piece has adiabatic coating.
According to the utility model provides a pair of vehicle-mounted display screen, the paler paster piece with be equipped with heat conduction silica gel layer between the circuit board.
According to the utility model provides a pair of vehicle-mounted display screen, radiator unit with the connection can be dismantled to the circuit board.
The utility model also provides a vehicle, including on-vehicle air conditioner and any kind of above-mentioned on-vehicle display screen, on-vehicle air conditioner is equipped with a plurality of air conditioner outlet, one of them air conditioner outlet with the cooling air import is linked together.
The utility model provides an on-vehicle display screen and vehicle, through the circuit board back mounted semiconductor radiator unit at the display screen, the cooling air and the circuit board that utilize the heat transfer cavity between the semiconductor radiator unit of flowing through and the circuit board back carry out the heat transfer, have accelerateed the thermal release of display screen, have improved on-vehicle display screen's heat-sinking capability, and then have improved on-vehicle display screen reliability and stability of using for a long time.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions, and obviously, the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is an exploded schematic view of a vehicle-mounted display screen structure provided by the present invention;
FIG. 2 is a schematic view of a bottom case structure of the vehicle-mounted display screen provided by the present invention;
reference numerals:
1. a display panel; 2. A circuit board; 21. A threaded hole;
22. an electronic component; 3. A heat dissipating component; 31. A Peltier patch;
32. a bottom housing; 321. A cooling air inlet; 322. A cooling air outlet;
323. a bottom; 324. And a side part.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model provides a vehicle-mounted display screen, as shown in figure 1 be the utility model provides an explosion schematic diagram of vehicle-mounted display screen structure. The embodiment of the utility model provides an on-vehicle display screen is including the display panel 1, circuit board 2 and the radiator unit 3 that superpose in proper order and set up, and radiator unit 3 includes peltier piece 31 and end casing 32, and end casing 32 is located peltier piece 31 and keeps away from one side of circuit board 2, and peltier piece 31 is including the relative refrigerating end and the heat dissipation end that set up, and the refrigerating end face is to circuit board 2, forms the heat transfer cavity between peltier piece 31 and the end casing 32, and end casing 32 is equipped with cooling air inlet 321 and cooling air outlet 322. The circuit board 2 includes a board body and a plurality of electronic components 22 disposed on the board body. The cooling air inlet 321 can be connected to an air supply pipeline, and cooling air is introduced into the heat exchange cavity of the heat dissipation assembly 3 through other refrigeration devices.
The Peltier block is a semiconductor refrigerating sheet, and an N-P junction is made of special semiconductor materials to form a thermocouple pair to generate the Peltier effect. When direct current is conducted to the heat pipe, the refrigerating end absorbs heat to the periphery, and the radiating end releases heat to the periphery, so that the heat at the hot end is absorbed and released. The Peltier block can be used under low-voltage direct current, and is safe and reliable. The semiconductor refrigerating sheet manufactured by utilizing the Peltier effect is simple in structure and suitable for the vehicle-mounted display screen which is high in reliability requirement and limited in space.
When the vehicle-mounted display screen is used, the Peltier block 31 is electrified to work, and meanwhile, cooling air is introduced into the heat exchange cavity through the cooling air inlet 321. The cooling end absorbs heat generated by the electronic components in the circuit board 2 and conducts the heat from the cooling end to the radiating end. The cooling air entering the heat exchange cavity contacts the heat dissipation end to exchange heat to form hot air, and the hot air is discharged from the cooling air outlet 322. Through the continuous cooling air that lets in to the heat transfer cavity, release the outside of on-vehicle display screen with the heat that circuit board 2 produced, realized the intensive heat transfer of on-vehicle display screen with the environment.
The utility model provides an on-vehicle display screen through the circuit board back mounted semiconductor radiator unit at the display screen, utilizes the cooling air and the circuit board of the heat transfer cavity between the semiconductor radiator unit of flowing through and the circuit board back to carry out the heat transfer, has accelerated the thermal release of display screen, has improved on-vehicle display screen's heat-sinking capability, and then has improved on-vehicle display screen reliability and stability of using for a long time.
Wherein, as shown in fig. 2, the utility model provides a bottom shell structure of vehicle-mounted display screen is schematically illustrated, bottom shell 32 includes bottom 323 and encloses the lateral part 324 of establishing and forming along the outline of peltier piece 31, and cooling air inlet 321 is seted up in bottom 323, and cooling air outlet 322 is seted up in lateral part 324. Specifically, one end of the side portion 324 is connected to the bottom portion 323, and the other end of the side portion 324 is connected to the peltier block 31. The peltier block 31 is generally shaped to accommodate the shape design of the circuit board 2 to provide a heat sink end for the largest area of the circuit board 2. The bottom shell 32 is a box structure without a cover, and the opening of the box structure faces upwards and is combined with the Peltier block 31 to form a heat exchange cavity. The opening shape of the bottom case 32 is the same as that of the peltier block 31 so that the entire heat radiating end of the peltier block 31 faces the heat exchange cavity.
For example, as shown in fig. 1, when the circuit board 2 has a rectangular shape, the peltier element 31 also has a rectangular shape, and the bottom case 32 has a rectangular uncovered box structure. The bottom 323 faces the peltier block 31, and the cooling air inlet 321 is provided in the bottom 323 and the cooling air outlet 322 is provided in the side 324, so that the contact time of the cooling air with the peltier block 31 can be prolonged, and the heat exchange efficiency can be improved.
Further, as shown in fig. 1 and 2, the cooling air inlet 321 is disposed near one end of the bottom casing 32, and the cooling air outlet 322 is disposed near the other end of the bottom casing 32, so as to form a cooling air flow flowing from one end to the other end in the heat exchange cavity, and efficiently take heat at the heat dissipation end of the peltier block 31 out of the heat exchange cavity. If the bottom casing 32 is a rectangular casing, the cooling air inlet 321 and the cooling air outlet 322 are respectively arranged near the two ends of the bottom casing 32 in the length direction, so that the heat exchange dead zone can be reduced, and a better heat exchange effect can be achieved.
The embodiment of the utility model provides an in, cooling air outlet 322 is including a plurality of exhaust vents of evenly arranging, and the more even discharge heat transfer cavity outside after making the cooling air that gets into in the heat transfer cavity and the heat transfer is accomplished to peltier piece 31, and to the influence of temperature distribution in the heat transfer cavity when reducing the cooling air and discharging, it is comparatively even to keep the temperature distribution in the heat transfer cavity. For example, the side 324 of the rectangular bottom housing 32 includes four sidewalls, the cooling air outlet 322 is opened on one sidewall, and the plurality of air outlets are uniformly distributed on the sidewall. For example, the air outlet is a through hole opened in the side 324 of the bottom case 32.
In the embodiment of the present invention, the cooling air outlet 322 is a louver structure. Specifically, a plurality of louvers are uniformly arranged along one direction on the side 324 of the bottom shell 32 to form a louver grid type air outlet structure, and a strip-shaped air outlet is formed between every two adjacent louvers. Wherein, the tripe can set up to rotatable structure, adjusts the wind direction of air-out through rotating the tripe.
The utility model provides an on-vehicle display screen still includes DC power supply and temperature sensor, and DC power supply is connected with 31 electricity of peltier piece, and temperature sensor and DC power supply signal connection, temperature sensor are used for detecting circuit board 2's temperature. The amount of heat absorbed and released by the peltier elements is proportional to the current intensity and is related to the conductor properties and the temperature of the hot side of the cooling and radiating ends of the two peltier elements 31. The temperature sensor can be arranged on the heating surface of the circuit board 2, the temperature of the circuit board 2 is detected through the temperature sensor, the current of the direct current power supply can be controlled and adjusted according to the temperature of the circuit board 2, the heat exchange efficiency of the Peltier block 31 can be accurately controlled, and the temperature of the circuit board is kept in a constant low-temperature state.
In the embodiment of the present invention, the surface around the peltier block 31 is coated with a heat insulation coating. By coating the insulating coating on the periphery of the Peltier block 31, heat exchange between the Peltier block 31 and the external environment can be avoided, the heat absorption of the Peltier block 31 from the circuit board 2 side and the heat conduction direction of the heat dissipation of the heat exchange cavity side are ensured, and the heat exchange efficiency is improved.
In the embodiment of the present invention, a heat conductive silicone layer is disposed between the peltier block 31 and the circuit board 2. Through set up heat conduction silica gel layer between peltier piece 31 and circuit board 2, the space between reducible peltier piece 31 and the circuit board 2, in addition heat conduction silica gel itself has higher coefficient of heat conductivity, has improved peltier piece 31's heat conduction efficiency greatly, and then improves radiating component's radiating efficiency.
The embodiment of the utility model provides an in, radiator unit 3 can dismantle with circuit board 2 and be connected. The circuit board 2 is connected to the heat dissipation member 3 by a plurality of bolts, for example. The assembly and disassembly of the heat dissipation assembly 3 and the circuit board 2 are convenient during the maintenance of the display screen. For example, screw holes 21 are provided at four corners of the rectangular circuit board 2 and the heat dissipating unit 3 in one-to-one correspondence, and the two are fixedly connected by bolts inserted into the screw holes 21. Further, the display panel 1 and the circuit board 2, and the peltier block 31 and the bottom case 32 may be connected by bolts. Alternatively, the display panel 1, the circuit board 2, the peltier block 31 and the bottom case 32 are integrally connected by bolts, so that the whole display screen can be easily attached and detached.
The utility model provides a vehicle, this vehicle include on-vehicle air conditioner and above-mentioned arbitrary embodiment on-vehicle display screen, on-vehicle air conditioner is equipped with a plurality of air-conditioning outlet, and one of them air-conditioning outlet is linked together with cooling air import 321. The vehicle may be an engineering vehicle, such as an excavator, a crane, a roller, etc. A plurality of air conditioner air outlets of the vehicle-mounted air conditioner can be opened simultaneously, and the same vehicle-mounted air conditioning system is utilized to realize the refrigeration or heating of the cab and the refrigeration of the vehicle-mounted display screen. When the cab needs to be heated, the air outlet of the air conditioner communicated with the vehicle-mounted display screen is closed. When refrigeration is not needed in the cab, the air conditioner air outlet communicated with the cab can be closed, and the air conditioner air outlet communicated with the vehicle-mounted display screen is opened, so that the vehicle-mounted air conditioner only provides cold air for the vehicle-mounted display screen. When the cab needs to be refrigerated, the air conditioner air outlet communicated with the cab and the air conditioner air outlet communicated with the vehicle-mounted display screen can be simultaneously opened, and the cab and the vehicle-mounted display screen share one set of air conditioner cooling system. This embodiment is through the air outlet intercommunication with cooling air import 321 and on-vehicle air conditioner, and the air conditioner cooling air of direct introduction need not to increase the heat dissipation of fan, simple structure, and it is convenient to use.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The utility model provides an on-vehicle display screen, its characterized in that, is including display panel, circuit board and the radiator unit that superposes in proper order and set up, radiator unit includes peltier piece and end casing, end casing is located peltier piece is kept away from one side of circuit board, peltier piece is including the relative system cold junction and the heat dissipation end that sets up, refrigeration terminal surface to the circuit board, peltier piece with form the heat transfer cavity between the end casing, end casing is equipped with cooling air inlet and cooling air outlet.
2. The vehicle-mounted display screen of claim 1, wherein the bottom housing comprises a bottom portion and a side portion defined along an outer contour of the peltier block, the cooling air inlet is formed in the bottom portion, and the cooling air outlet is formed in the side portion.
3. The vehicle-mounted display screen of claim 2, wherein the cooling air inlet is disposed near one end of the bottom housing, and the cooling air outlet is disposed near the other end of the bottom housing.
4. The vehicle-mounted display screen of claim 1, wherein the cooling air outlet comprises a plurality of air outlets which are uniformly arranged.
5. The vehicular display screen according to claim 4, wherein the cooling air outlet is of a louver structure.
6. The vehicle-mounted display screen of claim 1, further comprising a DC power supply and a temperature sensor, wherein the DC power supply is electrically connected with the Peltier block, the temperature sensor is in signal connection with the DC power supply, and the temperature sensor is used for detecting the temperature of the circuit board.
7. The vehicle display screen of claim 1, wherein the Peltier blocks are coated with a thermal insulating coating on the peripheral surfaces thereof.
8. The vehicle-mounted display screen of claim 1, wherein a heat-conducting silica gel layer is arranged between the Peltier block and the circuit board.
9. The vehicle display screen of claim 1, wherein the heat sink assembly is removably coupled to the circuit board.
10. A vehicle, characterized by comprising a vehicle-mounted air conditioner and the vehicle-mounted display screen as claimed in any one of claims 1 to 9, wherein the vehicle-mounted air conditioner is provided with a plurality of air conditioner air outlets, and one of the air conditioner air outlets is communicated with the cooling air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120421235.3U CN214647951U (en) | 2021-02-25 | 2021-02-25 | Vehicle-mounted display screen and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120421235.3U CN214647951U (en) | 2021-02-25 | 2021-02-25 | Vehicle-mounted display screen and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214647951U true CN214647951U (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120421235.3U Active CN214647951U (en) | 2021-02-25 | 2021-02-25 | Vehicle-mounted display screen and vehicle |
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| CN (1) | CN214647951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114360362A (en) * | 2021-12-29 | 2022-04-15 | 惠科股份有限公司 | Vehicle-mounted display module and vehicle |
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2021
- 2021-02-25 CN CN202120421235.3U patent/CN214647951U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114360362A (en) * | 2021-12-29 | 2022-04-15 | 惠科股份有限公司 | Vehicle-mounted display module and vehicle |
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