Vehicle-mounted backlight device

Abstract

The utility model discloses a vehicle-mounted backlight device, and particularly relates to the technical field of vehicle-mounted backlight, the vehicle-mounted backlight device comprises a backlight plate body mounted on a vehicle, a shell for protecting the backlight plate body is arranged at the outer end of the backlight plate body, and a mounting mechanism for fixing the backlight plate body is arranged in the shell; the mounting mechanism comprises two connecting plates fixedly mounted on the left side and the right side of the backlight plate body, mounting grooves are formed in the left side and the right side of the interior of the shell, the connecting plates can slide in the mounting grooves, first threaded holes are formed in the front ends and the rear ends of the connecting plates, and two second threaded holes are formed in the left end and the right end of the shell. According to the utility model, the service life is not influenced as far as possible, and the situation that the backlight plate body cannot be used due to over-high heat in the use process can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted backlights, in particular to a vehicle-mounted backlight device. Background Art

[0002] The backlight assembly is also called a backlight board, and the backlight board is a light source device used to ensure that light is emitted from behind the liquid crystal display screen. Most of the backlight boards in the prior art are connected to the casing by strong glue when in use. During the disassembly and maintenance process, heating operation is performed to melt the glue, and then disassembly is performed. This operation may cause damage to the backlight assembly, making it inconvenient to disassemble and install, and further solutions are needed.

[0003] For example, a backlight assembly for a vehicle-mounted display screen provided in a Chinese patent application with application number 202221362894.5 includes a shell, and both sides and ends of the shell are fixedly connected with a fixing block, a groove is provided on one side of the interior of the fixing block, and both ends of the groove are plugged with a protrusion, and the other end of the protrusion is fixedly connected with a spring, and a buffer groove is provided on the outside of the spring, and a plug-in board is plugged into the interior of the groove, and one end of the plug-in board is fixedly connected with a backlight panel. In the utility model, a backlight panel, a plug-in board, a fixing block, a protrusion and an arc groove are provided, and the plug-in boards on both sides and both ends of the backlight panel are plugged into one side of the fixing block and the interior of the groove, and then plugged in and matched by the protrusion and the arc groove to achieve a snap-fit ​​fixation, and elastic support is provided by the spring to prevent detachment, so as to achieve easy disassembly and installation, and solve the problem in the prior art that the backlight panel and the shell are fixed by adhesive connection, which is not easy to disassemble and causes damage.

[0004] However, the following problems still exist in this technical solution: in this technical solution, plug-in matching is achieved through the protrusion and the arc groove to achieve snap-fit ​​fixation, and elastic support is provided by the spring to prevent separation, so as to facilitate disassembly and installation. However, after long-term use, the elastic potential energy of the spring in the device gradually decreases, resulting in the spring being unable to elastically support the protrusion, and the protrusion being unable to be inserted into the arc groove, thereby failing to snap-fit ​​fixation. Summary of the invention

[0005] The purpose of the utility model is to provide a vehicle-mounted backlight device, which can not only ensure that the service life is not affected as much as possible, but also reduce the situation where the backlight panel body cannot be used due to excessive heat during use, so as to solve the above-mentioned shortcomings in the technology.

[0006] In order to achieve the above-mentioned object, the utility model provides the following technical solutions: a vehicle-mounted backlight device, comprising a backlight panel body installed on a vehicle, a shell for protecting the backlight panel body is provided at the outer end of the backlight panel body, and a mounting mechanism for fixing the backlight panel body is provided inside the shell;

[0007] The mounting mechanism includes two connecting plates fixedly mounted on the left and right sides of the backlight panel body, mounting grooves are provided on the left and right sides of the shell, the connecting plates can slide in the mounting grooves, first threaded holes are provided at the front and rear ends of the connecting plates, two second threaded holes are provided at the left and right ends of the shell, a first threaded rod is threadedly connected inside the second threaded hole, the bottom end of the first threaded rod passes through the second threaded hole and extends into the first threaded hole, the first threaded rod is threadedly connected to the first threaded hole, and can fix the backlight panel body.

[0008] Preferably, the top end of the first threaded rod passes through the outer shell and extends out of the top end of the outer shell, and a first nut is fixedly provided on the top end of the first threaded rod, which can drive the first threaded rod to rotate.

[0009] Preferably, a heat dissipation layer is provided at the top and the bottom of the backlight panel body, and the heat dissipation layer is made of a graphene film and can dissipate the heat of the backlight panel body.

[0010] Preferably, a protective layer is provided at one end of the two heat dissipation layers that are away from each other. The protective layer is made of polyimide and can protect the backlight panel body.

[0011] Preferably, the front end of the shell is provided with a fixing mechanism for shielding the backlight panel body; the fixing mechanism includes a baffle plate arranged at the front end of the shell, third threaded holes are opened at both left and right ends of the baffle plate, fourth threaded holes are opened at both left and right sides of the front end of the shell, a second threaded rod is threadedly connected inside the third threaded hole, a rear end of the second threaded rod passes through the third threaded hole and extends into the fourth threaded hole, the fourth threaded hole is threadedly connected to the second threaded rod, a front end of the second threaded rod passes through the third threaded hole and extends out of the front end of the third threaded hole, a second nut is fixed at the front end of the second threaded rod, which can shield the backlight panel body.

[0012] Preferably, a plurality of heat dissipation holes are provided at the bottom of the shell to discharge the hot air inside the shell.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] 1. In order to facilitate the fixing of the backlight panel body, the backlight panel body is inserted into the installation groove, and then the first nut is rotated. The first nut can drive the first threaded rod to rotate, and the first threaded rod is rotated into the first threaded hole through the second threaded hole. The utility model can fix the backlight panel body through the threaded connection between the first threaded rod, the second threaded hole and the first threaded hole, which can extend the service life of the utility model;

[0015] 2. The top and bottom of the backlight panel body are provided with a heat dissipation layer, which is made of graphene film. The graphene film has the characteristics of high temperature resistance, small thermal expansion coefficient, good thermal conductivity and electrical conductivity, stable chemical properties, and high plasticity, so that it can conduct heat better and transfer heat faster. The graphene film can conduct heat evenly in two directions. By setting the heat dissipation layer, the situation where the backlight panel body cannot be used due to excessive heat during use can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a front view of the utility model;

[0018] Figure 2 It is a bottom view of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the backlight panel body of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the heat dissipation layer and the protective layer of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the installation mechanism of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the fixing mechanism of the utility model.

[0023] Description of reference numerals:

[0024] 1 housing, 2 backlight panel body, 3 mounting mechanism, 301 connecting plate, 302 mounting groove, 303 first threaded hole, 304 second threaded hole, 305 first threaded rod, 306 first nut, 4 heat dissipation layer, 5 protective layer, 6 fixing mechanism, 601 baffle, 602 third threaded hole, 603 fourth threaded hole, 604 second threaded rod, 605 second nut, 7 heat dissipation hole. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] The utility model provides Figure 1-6 The vehicle-mounted backlight device shown in the figure comprises a backlight panel body 2 mounted on a vehicle, a shell 1 for protecting the backlight panel body 2 is provided at the outer end of the backlight panel body 2, and a plurality of heat dissipation holes 7 are provided at the bottom end of the shell 1 to discharge the heat inside the shell 1;

[0027] like Figure 6 As shown, the front end of the housing 1 is provided with a fixing mechanism 6 for shielding the backlight panel body 2; the fixing mechanism 6 includes a baffle 601 provided at the front end of the housing 1, and the left and right ends of the baffle 601 are both provided with third threaded holes 602, and the left and right sides of the front end of the housing 1 are both provided with fourth threaded holes 603, and the third threaded hole 602 is internally threadedly connected with a second threaded rod 604, and the rear end of the second threaded rod 604 penetrates the third threaded hole 602 and extends to the inside of the fourth threaded hole 603, and the fourth threaded hole 603 is connected to the second threaded rod 604 by threads, and the front end of the second threaded rod 604 penetrates the third threaded hole 602 and extends out of the front end of the third threaded hole 602, and the front end of the second threaded rod 604 is fixed with a second nut 605;

[0028] When the backlight panel body 2 needs to be installed inside the shell 1, rotate the second nut 605, the second nut 605 can drive the second threaded rod 604 to rotate, turn the second threaded rod 604 out from the fourth threaded hole 603, and then remove the baffle 601 from the front end of the shell 1, so that the backlight panel body 2 can be easily placed inside the shell 1.

[0029] like Figure 5 As shown, a mounting mechanism 3 for fixing the backlight panel body 2 is provided inside the shell 1; the mounting mechanism 3 comprises two connecting plates 301 fixedly installed on the left and right sides of the backlight panel body 2, mounting grooves 302 are provided on the left and right sides of the shell 1, the connecting plates 301 can slide inside the mounting grooves 302, first threaded holes 303 are provided on the front and rear ends of the connecting plates 301, two second threaded holes 304 are provided on the left and right ends of the shell 1, a first threaded rod 305 is threadedly connected inside the second threaded hole 304, the bottom end of the first threaded rod 305 passes through the second threaded hole 304 and extends into the first threaded hole 303, the first threaded rod 305 is threadedly connected with the first threaded hole 303, the top end of the first threaded rod 305 passes through the shell 1 and extends out of the top end of the shell 1, and a first nut 306 is fixedly provided on the top end of the first threaded rod 305;

[0030] In order to facilitate the fixation of the backlight panel body 2, connecting plates 301 are provided at both ends of the backlight panel body 2. The connecting plates 301 at both ends of the backlight panel body 2 are inserted into the installation grooves 302, and then the first nut 306 is rotated. The first nut 306 can drive the first threaded rod 305 to rotate, and the first threaded rod 305 is turned into the first threaded hole 303 through the second threaded hole 304. The utility model can fix the backlight panel body 2 through the threaded connection between the first threaded rod 305 and the second threaded hole 304 and the first threaded hole 303, which can extend the service life of the utility model.

[0031] like Figure 4 As shown, the top and bottom of the backlight panel body 2 are provided with a heat dissipation layer 4, and the heat dissipation layer 4 is made of a graphene film. Since the top and bottom of the backlight panel body 2 are provided with a heat dissipation layer 4, the heat dissipation layer 4 is made of a graphene film. The graphene film has the characteristics of high temperature resistance, small thermal expansion coefficient, good thermal conductivity and electrical conductivity, stable chemical properties, and high plasticity, so that it can better conduct heat and transfer heat faster. The graphene film can conduct heat evenly in two directions. Through the setting of the heat dissipation layer 4, the situation where the backlight panel body 2 cannot be used due to excessive heat during use can be reduced.

[0032] like Figure 5 As shown, a protective layer 5 is provided at one end of the two heat dissipation layers 4 away from each other, and the protective layer 5 is made of polyimide. Since a protective layer 5 is provided at one end of the heat dissipation layer 4, the protective layer 5 is made of polyimide. Polyimide is a polymer synthetic material with excellent heat resistance and chemical resistance, and can maintain good mechanical properties at high temperatures. The polyimide film can be used to protect electronic components and has good moisture-proof, dust-proof, gas-isolating and other functions. Through the setting value of the protective layer 5, the backlight panel body 2 can be protected.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A vehicle-mounted backlight device, comprising a backlight panel body (2) mounted on a vehicle, characterized in that: The outer end of the backlight panel body (2) is provided with a shell (1) for protecting the backlight panel body (2), and the inside of the shell (1) is provided with a mounting mechanism (3) for fixing the backlight panel body (2); The mounting mechanism (3) comprises two connecting plates (301) fixedly mounted on the left and right sides of the backlight panel body (2); the left and right sides of the housing (1) are provided with mounting grooves (302); the connecting plates (301) are capable of sliding inside the mounting grooves (302); the front and rear ends of the connecting plates (301) are provided with first threaded holes (303); the left and right ends of the housing (1) are provided with two second threaded holes (304); the second threaded holes (304) are internally threadedly connected with first threaded rods (305); the bottom end of the first threaded rod (305) passes through the second threaded holes (304) and extends into the first threaded holes (303); the first threaded rod (305) is threadedly connected to the first threaded holes (303).

2. The vehicle-mounted backlight device according to claim 1, characterized in that: The top end of the first threaded rod (305) passes through the outer shell (1) and extends out of the top end of the outer shell (1), and a first nut (306) is fixed to the top end of the first threaded rod (305).

3. The vehicle-mounted backlight device according to claim 1, characterized in that: The top and bottom ends of the backlight panel body (2) are both provided with a heat dissipation layer (4), and the heat dissipation layer (4) is made of a graphene film.

4. The vehicle-mounted backlight device according to claim 3, characterized in that: A protective layer (5) is provided at one end of the two heat dissipation layers (4) that is away from each other. The protective layer (5) is made of polyimide.

5. The vehicle-mounted backlight device according to claim 1, characterized in that: The front end of the housing (1) is provided with a fixing mechanism (6) for shielding the backlight panel body (2); The fixing mechanism (6) comprises a baffle (601) arranged at the front end of the housing (1); a third threaded hole (602) is provided at both left and right ends of the baffle (601); a fourth threaded hole (603) is provided at both left and right sides of the front end of the housing (1); a second threaded rod (604) is threadedly connected inside the third threaded hole (602); a rear end of the second threaded rod (604) passes through the third threaded hole (602) and extends into the fourth threaded hole (603); the fourth threaded hole (603) is threadedly connected to the second threaded rod (604); a front end of the second threaded rod (604) passes through the third threaded hole (602) and extends out of the front end of the third threaded hole (602); a second nut (605) is fixed to the front end of the second threaded rod (604).

6. The vehicle-mounted backlight device according to claim 1, characterized in that: A plurality of heat dissipation holes (7) are provided at the bottom end of the housing (1).

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