CN113721366B - Vehicle-mounted head-up display - Google Patents

Vehicle-mounted head-up display Download PDF

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Publication number
CN113721366B
CN113721366B CN202110995194.3A CN202110995194A CN113721366B CN 113721366 B CN113721366 B CN 113721366B CN 202110995194 A CN202110995194 A CN 202110995194A CN 113721366 B CN113721366 B CN 113721366B
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CN
China
Prior art keywords
display
refrigerator
display module
radiator
heat conduction
Prior art date
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Application number
CN202110995194.3A
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Chinese (zh)
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CN113721366A (en
Inventor
刘玉红
王晨如
訾峰
马占山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Beijing BOE Display Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Beijing BOE Display Technology Co Ltd
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Priority to CN202110995194.3A priority Critical patent/CN113721366B/en
Publication of CN113721366A publication Critical patent/CN113721366A/en
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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
    • H05K7/20963—Heat transfer by conduction from internal heat source to heat radiating structure
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
    • H05K7/20972—Forced ventilation, e.g. on heat dissipaters coupled to components

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Instrument Panels (AREA)

Abstract

The invention relates to the field of vehicle-mounted display and discloses a vehicle-mounted head-up display, which comprises a shell with a containing cavity, wherein the shell is provided with an opening, and a lens is arranged at the opening; the display module is positioned in the accommodating cavity; the refrigerator is positioned in the accommodating cavity and is arranged at one side of the display module, which is away from the lens; and the radiator is arranged on one side of the refrigerator, which is away from the display module, and is connected with the shell so as to form an accommodating space in the accommodating cavity. The heat dissipation device is used for improving the heat dissipation effect of the vehicle-mounted head-up display, and further improving the working stability and the service life of the display module in the vehicle-mounted head-up display.

Description

Vehicle-mounted head-up display
Technical Field
The invention relates to the technical field of vehicle-mounted display, in particular to a vehicle-mounted head-up display.
Background
Some modern vehicles include a Head Up Display (HUD) viewable by the driver, which may Display information such as speed limits, current speed, etc. These HUDs may be placed in front of the driver depending on his or her line of sight to the road.
In general, the running environment of an automobile is very intense, especially in the direct sunlight case. In order to improve the display effect of the vehicle-mounted HUD, the display brightness thereof must be improved. The problem derived from the improvement of the brightness of the module is the module heat dissipation problem, whether the module is an LCD module or a MicroOLED module, the requirement on the working temperature is relatively high, and if a large amount of temperature rise caused by high brightness cannot be timely dissipated, the module is inevitably damaged.
Disclosure of Invention
The invention discloses a vehicle-mounted head-up display which is used for improving the heat dissipation effect of the vehicle-mounted head-up display, so that the working stability and the service life of a display module in the vehicle-mounted head-up display are improved.
In order to achieve the above purpose, the present invention provides the following technical solutions:
an in-vehicle head-up display, comprising: a housing having a receiving cavity, the housing having an opening at which a lens is disposed;
the display module is positioned in the accommodating cavity;
the refrigerator is positioned in the accommodating cavity and is arranged at one side of the display module, which is away from the lens;
and the radiator is arranged on one side of the refrigerator, which is away from the display module, and is connected with the shell so as to form an accommodating space in the accommodating cavity.
Under the condition that the ambient light is stronger in the running process of the automobile, the display effect of the display module is improved, and a large amount of temperature rise of the display module is brought along with the improvement of the display effect, if the heat dissipation of the display module is ensured, the display module can be normally displayed, therefore, a refrigerator is arranged at one side deviating from the light emitting side of the display module, the working temperature of the display module is controlled by the cold end of the refrigerator at constant temperature, and the refrigerator can generate heat while cooling the display module, and a radiator is arranged at one side deviating from the display module, so that the temperature of the hot end of the refrigerator is timely dissipated through the radiator and is diffused into the external environment; the simple structure of the refrigerator and the radiator is used for realizing the efficient heat dissipation of the high-brightness display module, so that the working stability and the service life of the vehicle-mounted head-up display provided by the invention are improved.
Optionally, the vehicle-mounted head-up display further includes: the first flexible heat conducting piece is positioned in the accommodating cavity, is arranged between the display module and the refrigerator, and two sides of the first flexible heat conducting piece are respectively contacted with the display module and the refrigerator.
Optionally, the first flexible heat conducting member is a silica gel heat conducting pad.
Optionally, the vehicle-mounted head-up display further includes: the second flexible heat conducting piece is positioned in the accommodating cavity, is arranged between the refrigerator and the radiator, and two sides of the second flexible heat conducting piece are respectively contacted with the refrigerator and the radiator.
Optionally, the second flexible heat conducting member is a silica gel heat conducting pad.
Optionally, the vehicle-mounted head-up display further includes: and the fan is arranged on one side of the radiator, which is away from the accommodating cavity.
Optionally, a mounting groove is formed on one side of the radiator away from the accommodating cavity; the mounting groove is used for mounting the fan.
Optionally, the radiator includes a heat dissipation portion and a plurality of heat dissipation plates disposed on a side of the heat dissipation portion facing away from the refrigerator, and the plurality of heat dissipation plates are formed with the mounting groove.
Optionally, the outer wall of the shell is provided with a first connecting piece, and the radiator is provided with a second connecting piece matched with the first connecting piece.
Optionally, the display module includes a display area and an integrated circuit area; the display area is positioned in the accommodating cavity, and the integrated circuit area of the display module at least partially extends out of the accommodating cavity formed by the shell.
Drawings
Fig. 1 is a schematic structural diagram of a vehicle-mounted head-up display according to an embodiment of the present invention;
FIG. 2 is an exploded view of a vehicle head-up display according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a vehicle head-up display according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a heat exchange effect of a vehicle head-up display according to an embodiment of the present invention.
Icon: 1-a housing; 11-a receiving cavity; 12-lens; 13-a first connector; 2-a display module; 21-a display area; 22-integrated circuit area; 3-a first flexible heat conducting member; 4-refrigerator; 5-a second flexible heat conducting member; 6-a heat sink; 61-a heat sink; 62-a heat dissipation plate; 63-mounting slots; 64-a second connector; 7-fans.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 3, an embodiment of the present invention provides a vehicle head-up display, including: a housing 1 having a receiving chamber 11, the housing 1 having an opening at which a lens 12 is provided;
a display module 2 located in the accommodation chamber 11;
the refrigerator 4 is positioned in the accommodating cavity 11, and the refrigerator 4 is arranged on one side of the display module 2, which is away from the lens 12;
and the radiator 6 is arranged on one side of the refrigerator 4 away from the display module 2, and the radiator 6 is connected with the shell 1 to form an accommodating space with the accommodating cavity 11.
It should be noted that, under the condition that the ambient light is stronger in the running process of the automobile, the display effect of the display module 2 with high brightness is improved, and along with the improvement of the display effect, a great amount of temperature rise of the display module 2 is brought, if the heat dissipation of the display module 2 is ensured, the normal display of the display module 2 is caused, therefore, the refrigerator 4 is arranged at one side deviating from the light emitting side of the display module 2, the working temperature of the display module is controlled by the cold end of the refrigerator 4 through constant temperature, and as the refrigerator 4 cools the display module 2, heat is also generated, the radiator 6 is arranged at one side deviating from the display module 2 of the refrigerator 4, and the temperature of the hot end of the refrigerator is timely dissipated through the radiator 6 and is diffused into the external environment; the simple structure of the refrigerator 4 and the radiator 6 is used for realizing efficient heat dissipation of the high-brightness display module 2, so that the working stability and the service life of the vehicle-mounted head-up display provided by the invention are improved.
The structure of the refrigerator 4 is not particularly limited, and any device can be used as long as the refrigerator 4 can achieve the refrigerating effect, and the refrigerator 4 can achieve the temperature control effect by being powered by a cigarette lighter of an automobile and being matched with an auxiliary circuit.
In a specific embodiment, the vehicle head-up display further comprises: the first flexible heat conducting piece 3 is arranged in the accommodating cavity 11, the first flexible heat conducting piece 3 is arranged between the display module 2 and the refrigerator 4, and two sides of the first flexible heat conducting piece 3 are respectively contacted with the display module 2 and the refrigerator 4.
Specifically, the first flexible heat conducting member 3 is a silica gel heat conducting pad; one side of the first flexible heat conducting piece 3 is tightly attached to the display module 2, and the other side is tightly attached to the refrigerator 4, so that heat of the display module 2 is quickly conducted to the refrigerator 4, and the temperature of the display module 2 can be quickly absorbed and controlled by the refrigerator 4; and since the first flexible heat conductive member 3 is a flexible material, the display module 2 can be protected by its own flexibility to prevent damage to the display module 2 due to jolt of the vehicle during driving.
In a specific embodiment, the vehicle head-up display further comprises: the second flexible heat conducting member 5 is positioned in the accommodating cavity 11, the second flexible heat conducting member 5 is arranged between the refrigerator 4 and the radiator 6, and two sides of the second flexible heat conducting member 5 are respectively contacted with the refrigerator 4 and the radiator 6.
Specifically, the second flexible heat conducting member 5 is a silica gel heat conducting pad; the refrigerator 4 on one side of the second flexible heat conducting piece 5 is tightly attached, and the radiator 6 on the other side is tightly attached, and because the refrigerator 4 can radiate heat during operation, one side of the second flexible heat conducting piece 5 is tightly attached to the radiating end of the refrigerator 4, heat generated by the radiating end of the refrigerator 4 is conducted to the radiator 6 through the second flexible heat conducting piece 5, the radiating area of the radiator 6 is rapidly enlarged through the radiating function of the radiator, and redundant heat is effectively diffused into the environment. For example, the radiator 6 may be a fin radiator 6, where the fin radiator 6 includes a heat dissipation portion 61 and a plurality of heat dissipation plates 62 disposed on a side of the heat dissipation portion 61 away from the refrigerator 4, and particularly when the fin radiator 6 is used, since the fin radiator 6 has the plurality of heat dissipation plates 62, a heat dissipation area is increased by the heat dissipation plates 62, so that a heat dissipation efficiency of the radiator 6 is improved; of course, in order to ensure the heat dissipation effect of the heat sink 6, the heat dissipation plate 62 may be made of one or more materials selected from copper and gold.
Of course, in order to further increase the heat dissipation effect, the vehicle head-up display further includes: a fan 7 is arranged on the side of the heat sink 6 facing away from the receiving space 11.
Specifically, in order to reduce the overall volume of the vehicle head-up display provided by the embodiment of the present invention, a mounting groove 63 is formed on a side of the radiator 6 facing away from the accommodating cavity 11; and the fan 7 is mounted in the mounting groove 63; and the air flow generated by the rotation of the fan 7 directly dissipates heat of the radiator 6, and the air flow is blown to the radiator 6 due to the action of the fan 7, so that the heat dissipation speed is accelerated. When the radiator 6 is a fin radiator 6, since the fin radiator 6 includes a plurality of heat dissipation plates 62, in order to reduce the overall volume of the vehicle head-up display provided in the embodiment of the invention, the plurality of heat dissipation plates 62 are formed with mounting grooves 63, so that the fan 7 is mounted in the mounting grooves 63. Specifically, the fan 7 may be a silent axial flow fan 7.
Fig. 4 is a schematic diagram of a heat exchange effect of the vehicle-mounted head-up display provided by the embodiment of the invention, a solid arrow in fig. 4 represents a heat dissipation direction, and a dotted arrow represents a flow direction of cold air, that is, heat from the display module 2 in the drawing is conducted to the refrigerator 4 through the first flexible heat conducting member 3, heat emitted by the refrigerator 4 during operation is conducted to the radiator 6 through the second flexible heat conducting member 5, the radiator 6 comprises a heat dissipation part 61 and a heat dissipation plate 62, and the radiator 6 conducts heat to the environment through the heat dissipation part 61 and the heat dissipation plate 62, so that a heat dissipation process is completed; in order to accelerate the heat dissipation of the heat sink 6, cool air in the environment is blown to the heat sink 6 by the fan 7 to cool the heat sink 6, so that the heat dissipation speed is accelerated, and the heat dissipation efficiency of the heat sink 6 is increased.
Regarding the connection mode of the housing 1 and the radiator 6, the first connecting piece 13 is arranged on the outer wall of the housing 1, the radiator 6 is provided with the second connecting piece 64 matched with the first connecting piece 13, through holes are formed in the first connecting piece 13 and the second connecting piece 64, and then the housing 1 and the radiator 6 are relatively fixed through the two through holes of the first connecting piece 13 and the second connecting piece 64 through the connecting pieces such as screws or studs. The specific number of the first and second connection members 13 and 64 may be set according to actual needs.
Optionally, the display module 2 includes a display area 21 and an integrated circuit area 22; the display area 21 is located in the receiving cavity 11, and the integrated circuit area 22 of the display module 2 extends at least partially out of the receiving cavity 11 formed by the housing 1. The integrated circuit area 22 of the display module 2 is used for being electrically connected with a cigar lighter of an automobile to realize the operation of the display module 2.
In order to ensure the display effect of the vehicle head-up display provided by the embodiment of the invention, the projection of the lens 12 on the housing 1 on the display module 2 covers the display area 21 in the display module 2.
It will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (7)

1. A vehicle head-up display, comprising: a housing having a receiving cavity, the housing having an opening at which a lens is disposed;
the display module is positioned in the accommodating cavity;
the refrigerator is positioned in the accommodating cavity and is arranged at one side of the display module, which is away from the lens;
the radiator is arranged on one side, away from the display module, of the refrigerator, and is connected with the shell to form an accommodating space for the accommodating cavity;
the vehicle head-up display further includes: the first flexible heat conduction piece is positioned in the accommodating cavity, is arranged between the display module and the refrigerator, and two sides of the first flexible heat conduction piece are respectively contacted with the display module and the refrigerator;
the vehicle head-up display further includes: the second flexible heat conduction piece is positioned in the accommodating cavity, is arranged between the refrigerator and the radiator, and two sides of the second flexible heat conduction piece are respectively contacted with the refrigerator and the radiator;
the display module comprises a display area, the first flexible heat conduction piece corresponds to the display area, and orthographic projection of the first flexible heat conduction piece on the display module is positioned in the display area;
the orthographic projection of the first flexible heat conduction piece on the second flexible heat conduction piece is positioned in the second flexible heat conduction piece;
the second flexible heat conduction piece corresponds to the refrigerator, and orthographic projection of the second flexible heat conduction piece on the refrigerator is overlapped with the radiating surface of the refrigerator;
in the direction perpendicular to the display module, the housing is provided with a first groove and a second groove, the first groove and the second groove penetrate, the first groove is used for accommodating the display area and the first flexible heat conduction member, and the depth direction of the first groove is equal to the sum of the thickness of the display area and the thickness of the first flexible heat conduction member; the second groove is used for accommodating the refrigerator and the second flexible heat conduction member, and the depth direction of the second groove is equal to the sum of the thickness of the refrigerator and the second flexible heat conduction member;
the vehicle head-up display further includes: the fan is arranged on one side of the radiator, which is away from the accommodating cavity;
the heat of the display module is conducted to the refrigerator through the first flexible heat conducting piece, the heat emitted by the refrigerator during working is conducted to the radiator through the second flexible heat conducting piece, and the radiator is used for conducting the heat to the environment;
the fan blows cold air in the environment to the radiator so as to finish cooling the radiator.
2. The vehicle head-up display of claim 1, wherein the first flexible thermally conductive member is a silicone thermal pad.
3. The vehicle head up display of claim 1, wherein the second flexible thermally conductive member is a silicone thermal pad.
4. The vehicle head-up display of claim 1, wherein a side of the heat sink facing away from the receiving cavity is formed with a mounting groove; the mounting groove is used for mounting the fan.
5. The vehicle head up display of claim 1, wherein the heat sink includes a heat dissipating portion and a plurality of heat dissipating plates disposed on a side of the heat dissipating portion facing away from the refrigerator, the plurality of heat dissipating plates being formed with the mounting groove.
6. The vehicle head up display of claim 1, wherein the outer wall of the housing is provided with a first connector and the heat sink is provided with a second connector that mates with the first connector.
7. The vehicle head up display of claim 1, wherein the display module includes a display area and an integrated circuit area; the display area is positioned in the accommodating cavity, and the integrated circuit area of the display module at least partially extends out of the accommodating cavity formed by the shell.
CN202110995194.3A 2021-08-27 2021-08-27 Vehicle-mounted head-up display Active CN113721366B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110995194.3A CN113721366B (en) 2021-08-27 2021-08-27 Vehicle-mounted head-up display

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Application Number Priority Date Filing Date Title
CN202110995194.3A CN113721366B (en) 2021-08-27 2021-08-27 Vehicle-mounted head-up display

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CN113721366A CN113721366A (en) 2021-11-30
CN113721366B true CN113721366B (en) 2023-08-22

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105759868A (en) * 2016-05-13 2016-07-13 浙江水晶光电科技股份有限公司 Temperature control device and method applicable to automobile head-up display device
CN105759426A (en) * 2016-05-13 2016-07-13 浙江水晶光电科技股份有限公司 Intelligent automobile head-up display device
US20170160551A1 (en) * 2014-06-26 2017-06-08 Nippon Seiki Co., Ltd. Head-up display device
CN108474954A (en) * 2016-01-19 2018-08-31 日本精机株式会社 Head-up display and lens unit
CN208902983U (en) * 2018-10-24 2019-05-24 上海酷驾智能技术有限公司 Head up display
US20200379256A1 (en) * 2018-03-21 2020-12-03 Nippon Seiki Co., Ltd. Head-up display
CN212207853U (en) * 2020-06-01 2020-12-22 萤欧（上海）汽车科技有限公司 Light source heat radiation structure suitable for AR-HUD

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170160551A1 (en) * 2014-06-26 2017-06-08 Nippon Seiki Co., Ltd. Head-up display device
CN108474954A (en) * 2016-01-19 2018-08-31 日本精机株式会社 Head-up display and lens unit
CN105759868A (en) * 2016-05-13 2016-07-13 浙江水晶光电科技股份有限公司 Temperature control device and method applicable to automobile head-up display device
CN105759426A (en) * 2016-05-13 2016-07-13 浙江水晶光电科技股份有限公司 Intelligent automobile head-up display device
US20200379256A1 (en) * 2018-03-21 2020-12-03 Nippon Seiki Co., Ltd. Head-up display
CN208902983U (en) * 2018-10-24 2019-05-24 上海酷驾智能技术有限公司 Head up display
CN212207853U (en) * 2020-06-01 2020-12-22 萤欧（上海）汽车科技有限公司 Light source heat radiation structure suitable for AR-HUD

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