Car CD navigation host frame

Abstract

A kind of automobile CD navigation host middle frame, including middle frame body, support, support riveting with middle frame body, support includes first support, second support, respectively installed in upper portion and lower portion in middle frame body, first support, two side faces of middle frame body and first support adjacent are all provided with circuit board mounting surface, circuit board mounting surface is provided with the guide installation hole that is convenient for screw fast and accurate to pass through, chamfer is provided on guide installation hole.The guide installation hole in the utility model, by conical guide surface automatic correction hole position error and assembly offset, reduce screw inclination, component damage, improve assembly efficiency;Support and middle frame are not integrally formed (flanging riveting, rivet riveting), both simplify mould design, reduce material consumption to reduce manufacturing cost, improve production convenience, also realize signal shielding by rivet riveting, block interference, reduce the function anomaly caused by electromagnetic interference, to improve the stability and reliability of product, finally improve overall product quality.

Description

Technical Field

[0001] This utility model belongs to the field of automotive electronic components technology, specifically relating to a mid-frame for an automotive CD navigation host. Background Technology

[0002] The frame of the car CD navigation host is the core structural component of the in-vehicle CD navigation device. It mainly serves to support and fix the internal circuit board and other components, while also providing structural strength and assembly benchmarks for the whole device.

[0003] In existing technologies, when installing circuit boards, the middle frame of a car CD navigation unit often uses straight-up-down locking holes without guide bevels or positioning auxiliary structures. When there are slight machining errors in the hole positions between the middle frame and the circuit board, or slight misalignment of the circuit board during assembly, the screw is prone to tilting due to initial misalignment when inserted. If it is forcibly screwed in, it will cause the screw shank to rub against the hole wall on one side, causing damage to the threads on the inner wall of the locking hole, deformation of the circuit board mounting hole, or even misalignment of the screw head pressing on the circuit board, resulting in local stress concentration. Under long-term vibration, this may lead to solder joint detachment or circuit board cracking. At the same time, the straight hole design requires extremely high operational precision. During manual assembly, the position of the circuit board must be repeatedly adjusted to align all the locking holes. Even a slight deviation will result in "one hole aligned, other holes misaligned", which not only increases the probability of locking misalignment but also significantly reduces assembly efficiency. Secondly, most circuit board brackets are integrally molded with the middle frame, making the molds for manufacturing them complex, requiring a large amount of material, which is not conducive to manufacturing. Utility Model Content

[0004] In response to the problems raised in the background technology, this utility model studies and designs a car CD navigation host mid-frame, the purpose of which is to provide a mid-frame for car CD navigation hosts that improves the assembly quality and efficiency of circuit boards and facilitates the manufacturing of car CD navigation host mid-frames.

[0005] The technical solution of this utility model: A car CD navigation host frame includes a frame body and a bracket. The bracket is riveted to the frame body. The bracket includes a first bracket and a second bracket, which are respectively installed in the upper and lower parts of the frame body. The first bracket, the frame body and the two adjacent sides of the first bracket are provided with circuit board mounting surfaces. The circuit board mounting surfaces are provided with guide mounting holes to facilitate the quick and accurate passage of screws. The guide mounting holes are provided with chamfers.

[0006] Preferably, both the first bracket and the second bracket are in the shape of a gate.

[0007] Preferably, the first bracket is riveted to the middle frame body by flange, and the second bracket is riveted to the middle frame body by rivets passing through the rivet holes.

[0008] Preferably, there are three rivet holes.

[0009] Preferably, the chamfer of the guide mounting hole is C0.6-C0.7.

[0010] Preferably, a first heat dissipation hole and a second heat dissipation hole are respectively provided on the two sides of the middle frame body adjacent to the first bracket.

[0011] Preferably, the front of the middle frame body is also provided with a heat sink mounting surface.

[0012] Preferably, there are two mounting surfaces for the radiator.

[0013] Preferably, the material of the middle frame body and the bracket is galvanized steel plate.

[0014] Preferably, the two sides of the middle frame body adjacent to the first bracket are also provided with clamping quick-release buckles.

[0015] The beneficial effects of this utility model are as follows: This utility model has a reasonable structure and novel design. The chamfered C0.6-C0.7 guide mounting holes can automatically correct hole position errors and assembly offsets through the tapered guide surface, reducing screw tilting and component damage, and improving assembly efficiency. The bracket for mounting the circuit board and the middle frame are not integrally formed (flanged riveting, rivet riveting), which simplifies mold design, reduces material usage to lower manufacturing costs and improves production convenience. At the same time, the rivet riveting can achieve signal shielding, block interference, and reduce functional abnormalities caused by electromagnetic interference, thereby improving the stability and reliability of the product and ultimately improving the overall product quality. It has high practical value. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] The components include: 1. Mid-frame body; 2. First bracket; 3. Second bracket; 4. Circuit board mounting surface; 5. Guide mounting hole; 6. Riveting hole; 7. First heat dissipation hole; 8. Second heat dissipation hole; 9. Heat sink mounting platform; 10. Clamping quick-release buckle. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] like Figure 1 As shown, a car CD navigation host frame includes a frame body 1 and a bracket. The bracket is riveted to the frame body 1. The bracket includes a first bracket 2 and a second bracket 3, which are respectively installed in the upper and lower parts of the frame body 1. The first bracket 2, the frame body 1 and the two adjacent sides of the first bracket 1 are provided with circuit board mounting surfaces 4. The circuit board mounting surfaces 4 are provided with guide mounting holes 5 to facilitate the quick and accurate passage of screws. The guide mounting holes 5 are provided with chamfers.

[0020] In this embodiment, as Figure 1 As shown, both the first support 2 and the second support 3 are in the shape of a gate.

[0021] In this embodiment, as Figure 1 As shown, the first bracket 2 is riveted to the middle frame body 1 by flange, and the second bracket 3 is riveted to the middle frame body 1 by rivets passing through the rivet holes 6.

[0022] In this embodiment, as Figure 1 As shown, there are three rivet holes 6.

[0023] In this embodiment, as Figure 1 As shown, the chamfer of the guide mounting hole 5 is C0.6-C0.7.

[0024] In this embodiment, as Figure 1 As shown, the two sides of the middle frame body 1 adjacent to the first bracket 2 are respectively provided with a first heat dissipation hole 7 and a second heat dissipation hole 8.

[0025] In this embodiment, as Figure 1 As shown, the front of the middle frame body 1 is also provided with a heat sink mounting platform 9.

[0026] In this embodiment, as Figure 1 As shown, there are two radiator mounting surfaces 9.

[0027] In this embodiment, as Figure 1 As shown, the middle frame body 1, the first bracket 2, and the second bracket 3 are made of galvanized steel sheet.

[0028] In this embodiment, as Figure 1 As shown, clamping quick-release buckles 10 are also provided on the two sides adjacent to the middle frame body 1 and the first bracket 2. The clamping quick-release buckles 10 are existing technologies, and the specific structure of the clamping quick-release buckles 10 will not be described in detail here.

[0029] Specific usage process: In actual use, the first bracket 2 is riveted to the middle frame body 1, and the second bracket 3 is riveted to the middle frame body 1 by passing rivets through the riveting holes 6. The radiator is installed on the radiator mounting platform 9. The circuit board is connected to the bracket and the middle frame body 1 by passing screws through the screw mounting holes on the circuit board and the guide mounting holes 5 on the circuit board mounting surface 4. The clamp-type quick-release buckle 10 is assembled with the car. The circuit board and internal electronic components of the car CD navigation host are cooled through the first heat dissipation hole 7 and the second heat dissipation hole 8 to ensure stable operation of the equipment. In this invention, the guide mounting holes 5 with chamfered corners of C0.6-C0.7 are provided. The conical guide surface can automatically correct hole position errors and assembly offsets, reduce screw tilting and component damage, and improve assembly efficiency. The bracket for mounting the circuit board and the middle frame body 1 are not integrally formed (flanged riveting, rivet riveting), which simplifies mold design, reduces material usage to lower manufacturing costs and improves production convenience. At the same time, the rivet riveting can achieve signal shielding, block interference, and reduce functional abnormalities caused by electromagnetic interference, thereby improving the stability and reliability of the product and ultimately improving the overall product quality. It has high practical value.

[0030] In summary, this utility model achieves the expected results.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A frame for a car CD navigation host, characterized in that: It includes a mid-frame body and a bracket. The bracket is riveted to the mid-frame body. The bracket includes a first bracket and a second bracket, which are installed in the upper and lower parts of the mid-frame body, respectively. The first bracket, the mid-frame body and the two adjacent sides of the first bracket are provided with circuit board mounting surfaces. The circuit board mounting surfaces are provided with guide mounting holes to facilitate the quick and accurate passage of screws. The guide mounting holes are provided with chamfers.

2. The car CD navigation host frame as described in claim 1, characterized in that: Both the first and second supports are in the shape of a gate.

3. The car CD navigation host frame as described in claim 1, characterized in that: The first bracket is riveted to the middle frame body by flange, and the second bracket is riveted to the middle frame body by rivets passing through the rivet holes.

4. The car CD navigation host frame as described in claim 3, characterized in that: There are three rivet holes.

5. The car CD navigation host frame as described in claim 1, characterized in that: The chamfer of the guide mounting hole is C0.6-C0.

7.

6. The car CD navigation host frame as described in claim 1, characterized in that: The middle frame body and the two sides adjacent to the first bracket are respectively provided with a first heat dissipation hole and a second heat dissipation hole.

7. The car CD navigation host frame as described in claim 1, characterized in that: The front of the middle frame body is also provided with a heat sink mounting platform.

8. The car CD navigation host frame as described in claim 7, characterized in that: There are two mounting platforms for the radiator.

9. The car CD navigation host frame as described in claim 1, characterized in that: The material of the middle frame body and the bracket is galvanized steel plate.

10. The car CD navigation host frame as described in claim 1, characterized in that: The two sides of the middle frame body adjacent to the first bracket are also provided with clamping quick-release buckles.

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