Vehicle-mounted display module for improving bonding force between glue and narrow-frame aluminum casting

Abstract

The utility model discloses a vehicle-mounted display module capable of improving adhesive force between glue and a narrow frame aluminum casting, which comprises a display module body, an aluminum casting is arranged on one side of the display module body, the display module body is accommodated in the aluminum casting, a cover plate is arranged on one side of the display module body far away from the aluminum casting, and the cover plate is arranged on the other side of the display module body far away from the aluminum casting. RTV glue used for bonding is arranged between the cover plate and the aluminum casting, and a boss and a groove which are used for increasing the contact area of the RTV glue and the aluminum casting are arranged on the binding face of the aluminum casting and the cover plate. The vehicle-mounted display module has the advantages that the contact area between the RTV glue and the aluminum casting is increased, so that the bonding force between the RTV glue and the aluminum casting is improved under the condition that the frame of the aluminum casting becomes smaller and smaller, and the reliability of the vehicle-mounted display module is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, in particular to a vehicle-mounted display module capable of improving the bonding force between glue and narrow-frame aluminum castings. Background Art

[0002] Liquid crystal display devices are widely used in vehicle-mounted equipment. With the development of vehicle-mounted display modules, users have higher and higher requirements for the aesthetics of vehicle-mounted display modules. The frames of vehicle-mounted display modules are becoming more and more sticky with the public's aesthetic taste. When the display module of the vehicle-mounted display module is connected to the client's shell, double-sided adhesive is usually used. In order to achieve higher reliability, the double-sided adhesive is replaced with RTV adhesive with stronger stickiness.

[0003] As the frame of the vehicle display module in the prior art becomes narrower and narrower, the glue spot surface when the display module is connected to the client shell becomes smaller and smaller. The smaller RTV glue spot surface will make the adhesion between the glue and the client shell worse, thereby affecting the reliability of the vehicle display module. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a vehicle-mounted display module which improves the bonding force between glue and narrow frame aluminum castings.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A vehicle-mounted display module for improving the bonding strength between glue and a narrow-frame aluminum casting, comprising: a display module body, an aluminum casting being arranged on one side of the display module body, the display module body being accommodated in the aluminum casting, a cover plate being arranged on the side of the display module body away from the aluminum casting, RTV glue for bonding being arranged between the cover plate and the aluminum casting, and bosses and grooves for increasing the contact area between the RTV glue and the aluminum casting being arranged on the mating surfaces of the aluminum casting and the cover plate.

[0007] In one embodiment, the thickness of the RTV glue is 0.8-1.0 mm.

[0008] In one embodiment, there are multiple bosses, and the multiple bosses are evenly distributed along the circumferential direction of the aluminum casting fitting surface, and the multiple bosses are all arranged to protrude from the aluminum casting fitting surface.

[0009] In one embodiment, the height of the boss is smaller than the thickness of the RTV glue.

[0010] In one embodiment, there are a plurality of grooves, and the plurality of grooves are evenly opened along the circumferential direction of the aluminum casting mating surface, and the plurality of grooves are all recessed from the aluminum casting mating surface toward the inside of the aluminum casting.

[0011] In one embodiment, the depth of the groove is 0.1-1.1 mm.

[0012] In one embodiment, the plurality of grooves and the plurality of bosses are alternately arranged on the mating surface of the aluminum casting.

[0013] In one embodiment, the number of the grooves and the bosses can be adjusted according to the requirement of the bonding force.

[0014] In one embodiment, the periphery of the RTV glue is coated with waterproof glue for enhancing waterproof performance, and the waterproof glue is arranged along the outer circumferential direction of the RTV glue.

[0015] In one embodiment, the thickness of the waterproof glue is 0.2 mm.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] The utility model discloses a vehicle-mounted display module for improving the bonding strength between glue and a narrow-frame aluminum casting by setting a plurality of grooves and a plurality of bosses. Both the bosses and the grooves increase the contact area between the RTV glue and the aluminum casting. When the frame of the aluminum casting becomes smaller and smaller, the bonding strength between the RTV glue and the aluminum casting is improved, thereby improving the reliability of the vehicle-mounted display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0019] Figure 1 A schematic diagram of the front structure of a vehicle-mounted display module for improving the bonding strength between glue and a narrow-frame aluminum casting provided by the utility model;

[0020] Figure 2 A schematic diagram of the side cross-sectional structure of a vehicle-mounted display module provided by the utility model for improving the bonding strength between glue and a narrow-frame aluminum casting;

[0021] Figure 3 The utility model provides a schematic diagram of the side structure of a vehicle-mounted display module for improving the bonding strength between glue and a narrow-frame aluminum casting.

[0022] Description of the drawings: 10. Display module body; 20. Aluminum casting; 30. Cover plate; 40. RTV glue; 50. Boss; 60. Groove; 70. Waterproof glue. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0024] A vehicle display module for improving the bonding strength between glue and narrow frame aluminum casting, referring to Figure 1 and Figure 2 , including a display module body 10, an aluminum casting 20 is provided on one side of the display module body 10, the display module body 10 is accommodated in the aluminum casting 20, and the aluminum casting 20 covers the outer side of the display module body 10. The display module body 10 includes a display screen and a backlight module arranged in sequence, and the display screen and the backlight module are accommodated in the aluminum casting 20 in sequence. A cover plate 30 is provided on the side of the display screen away from the backlight module, and the cover plate 30 is located on the side of the display module body 10 away from the aluminum casting 20. The size of the cover plate 30 is larger than the size of the display module body 10, and the side of the cover plate 30 facing the aluminum casting 20 is in contact with the end surface of the aluminum casting 20.

[0025] Reference Figure 2 An RTV glue 40 for bonding and fixing is provided between the cover plate 30 and the aluminum casting 20. The RTV glue 40 is located on the end surface where the aluminum casting 20 and the cover plate 30 contact. The RTV glue 40 is distributed along the circumferential direction of the end surface of the aluminum casting 20. The RTV glue 40 surrounds a circle of the end surface of the aluminum casting 20 so that the cover plate 30 and the aluminum casting 20 are bonded and fixed.

[0026] Further, refer to Figure 2 , the thickness of RTV glue 40 is 0.8-1.0mm.

[0027] Reference Figure 1 and Figure 2 A boss 50 and a groove 60 are provided on the mating surface of the aluminum casting 20 and the cover plate 30. There are multiple bosses 50, and the multiple bosses 50 are evenly distributed along the circumferential direction of the mating surface of the aluminum casting 20. The multiple bosses 50 are all protruding from the mating surface of the aluminum casting 20.

[0028] Further, refer to Figure 2 The height of the boss 50 is less than the thickness of the RTV glue 40 , and the boss 50 increases the contact area between the RTV glue 40 and the aluminum casting 20 to ensure the bonding strength between the RTV glue 40 and the aluminum casting 20 .

[0029] Reference Figure 1 and Figure 2 There are a plurality of grooves 60, and the plurality of grooves 60 are evenly opened along the circumferential direction of the bonding surface of the aluminum casting 20, and the plurality of grooves 60 are recessed from the bonding surface of the aluminum casting 20 to the inside of the aluminum casting 20. The plurality of grooves 60 and the plurality of bosses 50 are alternately arranged on the bonding surface of the aluminum casting 20, and the plurality of grooves 60 and the plurality of bosses 50 are evenly distributed on a circle of the bonding surface of the aluminum casting 20.

[0030] Further, refer to Figure 2The depth of the groove 60 is 0.1-1 mm. The groove 60 is sunken on the bonding surface of the aluminum casting 20 so that the RTV glue 40 can flow into the groove 60, thereby increasing the amount of the RTV glue 40 to a certain extent, increasing the contact area between the RTV glue 40 and the aluminum casting 20, and improving the bonding strength between the RTV glue 40 and the aluminum casting 20 when the frame of the aluminum casting 20 is getting smaller and smaller, thereby improving the reliability of the vehicle display module.

[0031] Further, refer to Figure 1 The number of the grooves 60 and the bosses 50 can be adjusted according to the requirements of the bonding force, and the grooves 60 and the bosses 50 are both arranged on the bonding surface of the aluminum casting 20 and the cover plate 30.

[0032] Reference Figure 3 The outer periphery of the RTV glue 40 is coated with a waterproof glue 70, and the waterproof glue 70 is arranged along the outer circumferential direction of the RTV glue 40. The waterproof glue 70 is used to enhance the waterproof performance of the RTV glue 40. The waterproof glue 70 is moisture-cured RTV glue 40, UV-cured acrylic glue or baked and moisture-cured organic silicone.

[0033] Further, refer to Figure 3 , the thickness of the waterproof glue 70 is 0.2 mm.

[0034] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A vehicle display module that improves the bonding strength between glue and narrow-frame aluminum castings. It is characterized in that include: A display module body (10), wherein an aluminum casting (20) is arranged on one side of the display module body (10), the display module body (10) is accommodated in the aluminum casting (20), a cover plate (30) is arranged on the side of the display module body (10) away from the aluminum casting (20), an RTV glue (40) for bonding is arranged between the cover plate (30) and the aluminum casting (20), and a boss (50) and a groove (60) for increasing the contact area between the RTV glue (40) and the aluminum casting (20) are arranged on the bonding surface of the aluminum casting (20) and the cover plate (30).

2. A vehicle-mounted display module for improving the bonding strength between glue and narrow-frame aluminum casting according to claim 1, It is characterized in that The thickness of the RTV glue (40) is 0.8-1.0 mm.

3. A vehicle-mounted display module for improving the bonding strength between glue and narrow-frame aluminum casting according to claim 2, It is characterized in that There are a plurality of bosses (50), and the plurality of bosses (50) are evenly distributed along the circumferential direction of the fitting surface of the aluminum casting (20), and the plurality of bosses (50) are all arranged to protrude from the fitting surface of the aluminum casting (20).

4. A vehicle-mounted display module for improving the bonding strength between glue and narrow-frame aluminum casting according to claim 3, It is characterized in that The height of the boss (50) is smaller than the thickness of the RTV glue (40).

5. The vehicle-mounted display module for improving the bonding strength between glue and narrow-frame aluminum casting according to claim 3, It is characterized in that There are a plurality of grooves (60), and the plurality of grooves (60) are evenly opened along the circumferential direction of the fitting surface of the aluminum casting (20). The plurality of grooves (60) are all arranged in a concave shape from the fitting surface of the aluminum casting (20) toward the interior of the aluminum casting (20).

6. The vehicle-mounted display module for improving the bonding strength between glue and narrow-frame aluminum casting according to claim 5, It is characterized in that The depth of the groove (60) is 0.1-1.1 mm.

7. The vehicle-mounted display module for improving the bonding strength between glue and narrow-frame aluminum casting according to claim 6, It is characterized in that The plurality of grooves (60) and the plurality of bosses (50) are alternately arranged on the fitting surface of the aluminum casting (20).

8. The vehicle-mounted display module for improving the bonding strength between glue and narrow-frame aluminum casting according to claim 7, It is characterized in that The number of the grooves (60) and the bosses (50) can be adjusted according to the requirements of the bonding force.

9. The vehicle-mounted display module for improving the bonding strength between glue and narrow-frame aluminum casting according to claim 1, It is characterized in that The outer periphery of the RTV glue (40) is coated with a waterproof glue (70) for enhancing waterproof performance, and the waterproof glue (70) is arranged along the outer circumferential direction of the RTV glue (40).

10. The vehicle-mounted display module for improving the bonding strength between glue and narrow-frame aluminum casting according to claim 9, It is characterized in that The thickness of the waterproof glue (70) is 0.2 mm.

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