CN209768023U - Circuit board fixing structure - Google Patents
Circuit board fixing structure Download PDFInfo
- Publication number
- CN209768023U CN209768023U CN201920281918.6U CN201920281918U CN209768023U CN 209768023 U CN209768023 U CN 209768023U CN 201920281918 U CN201920281918 U CN 201920281918U CN 209768023 U CN209768023 U CN 209768023U
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- Prior art keywords
- circuit board
- pressing part
- fixing structure
- close
- upper pressing
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Abstract
The utility model provides a circuit board fixed knot constructs, including epitheca and inferior valve, be equipped with the circuit board between epitheca and the inferior valve, one side that the epitheca is close to the circuit board is equipped with compresses tightly the portion, one side that the inferior valve is close to the circuit board is equipped with down compresses tightly the portion, go up portion and the circuit board interference fit that compresses tightly, compress tightly portion and circuit board interference fit down. Owing to adopted above-mentioned technical scheme, compare with prior art, the utility model has the advantages that: this scheme adopts and compresses tightly the portion and push down the circuit board with pressing down the portion structure. When the design, there is certain interference fit volume in last clamping part and lower clamping part and circuit board. After the assembly, the interference positions of the tips of the upper pressing part and the lower pressing part deform with the circuit board by extrusion, and the undeformed positions still have certain rigidity, so that the circuit board can be pressed between the upper shell and the lower shell very well, the vibration inside the product is prevented, the process is simple, and the cost is low.
Description
Technical Field
The utility model relates to the field of electronic technology.
In particular to a circuit board fixing structure.
Background
When the circuit board is pressed inside the sound equipment and camera products at present, compressible materials such as foam and silica gel are arranged in the upper shell and the lower shell, the circuit board can be pressed by utilizing the compression resilience of the compressible materials, or the circuit board is directly fixed by adopting screws.
The above process has the following disadvantages.
1. One or more materials are needed to be added, so that the cost of manufacturing the materials is increased;
2. The assembly process is increased when one or more materials are added, the production efficiency is low, and the product cost is greatly increased.
3. One or more materials are added, so that the complexity of an assembly process is increased, and poor assembly of the product is easily caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned conventional art's weak point, provide a circuit board fixed knot constructs, realize pushing down the circuit board between epitheca and the inferior valve, prevent to appear vibrating in the product is inside.
The purpose of the utility model is achieved through the following technical measures:
The utility model provides a circuit board fixed knot constructs, includes epitheca and inferior valve, be equipped with the circuit board between epitheca and the inferior valve, one side that the epitheca is close to the circuit board is equipped with compresses tightly the portion, one side that the inferior valve is close to the circuit board is equipped with down compresses tightly the portion, go up compress tightly portion and circuit board interference fit, compress tightly portion and circuit board interference fit down.
As an improvement: the width of one side of the upper pressing part close to the circuit board is smaller than that of one side of the upper pressing part far away from the circuit board; the width of one side of the lower pressing part close to the circuit board is smaller than that of one side of the upper pressing part far away from the circuit board.
As an improvement: the side surface of the upper pressing part is provided with a first upper inclined surface, and the side surface of the lower pressing part is provided with a first lower inclined surface.
As an improvement: a second upper inclined plane is arranged on one side, away from the first upper inclined plane, of the upper pressing part; one side of the lower pressing portion, which is far away from the first lower inclined plane, is provided with a second lower inclined plane.
As an improvement: the cross section of the upper pressing part is triangular or trapezoidal; the cross section of the lower pressing part is triangular or trapezoidal.
As an improvement: an upper protruding part is arranged between the upper shell and the upper pressing part.
As an improvement: and a lower convex part is arranged between the lower shell and the lower pressing part.
as an improvement: the upper compressing portion is made of plastic, and the lower compressing portion is made of plastic.
Owing to adopted above-mentioned technical scheme, compare with prior art, the utility model has the advantages that: this scheme adopts and compresses tightly the portion and push down the circuit board with pressing down the portion structure. When the design, there is certain interference fit volume in last clamping part and lower clamping part and circuit board. After the assembly, the interference positions of the tips of the upper pressing part and the lower pressing part deform with the circuit board by extrusion, and the undeformed positions still have certain rigidity, so that the circuit board can be pressed between the upper shell and the lower shell very well, the vibration inside the product is prevented, the process is simple, and the cost is low.
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Drawings
Fig. 1 is a schematic structural diagram of a circuit board fixing structure according to embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of a circuit board fixing structure according to embodiment 2 of the present invention.
Fig. 3 is a schematic structural diagram of a circuit board fixing structure according to embodiment 3 of the present invention.
Fig. 4 is a schematic structural diagram of a circuit board fixing structure according to embodiment 4 of the present invention.
The attached drawings are as follows: 1-a circuit board; 2-a first upper inclined plane; 3-an upper compression part; 4-upper shell; 5-an upper projection; 6-a second upper inclined plane; 7-a second lower inclined plane; 8-lower projections; 9-a lower shell; 10-a lower compression section; 11-first lower inclined plane.
Detailed Description
Example 1: as shown in fig. 1, a circuit board fixing structure includes an upper case 4 and a lower case 9, a circuit board 1 is disposed between the upper case 4 and the lower case 9, and the circuit board 1 is a PCB.
One side of the upper shell 4 close to the circuit board 1 is provided with an upper pressing part 3, and an upper protruding part 5 is arranged between the upper shell 4 and the upper pressing part 3.
The width of one side of the upper pressing part 3 close to the circuit board 1 is smaller than that of one side of the upper pressing part 3 far away from the circuit board 1.
Specifically, the side of the upper pressing portion 3 is provided with a first upper inclined surface 2, one side of the upper pressing portion 3, which is far away from the first upper inclined surface 2, is provided with a second upper inclined surface 6, and the cross section of the upper pressing portion 3 is triangular.
The upper shell 4, the upper convex part 5 and the upper pressing part 3 are made of plastic through injection molding and integrated molding.
One side of the lower shell 9 close to the circuit board 1 is provided with a lower pressing part 10, and a lower convex part 8 is arranged between the lower shell 9 and the lower pressing part 10.
The width of the lower pressing part 10 close to the circuit board 1 is smaller than that of the upper pressing part 3 far away from the circuit board 1.
Specifically, a first lower inclined surface 11 is arranged on the side surface of the lower pressing portion 10, a second lower inclined surface 7 is arranged on one side, away from the first lower inclined surface 11, of the lower pressing portion 10, and the cross section of the lower pressing portion 10 is triangular.
The lower case 9, the lower protrusion 8 and the lower pressing portion 10 are integrally formed of plastic by injection molding.
The upper pressing portion 3 is in interference fit with the circuit board 1, and the lower pressing portion 10 is in interference fit with the circuit board 1.
Example 2: as shown in fig. 2, the circuit board fixing structure includes an upper case 4 and a lower case 9, a circuit board 1 is disposed between the upper case 4 and the lower case 9, and the circuit board 1 is a PCB.
One side of the upper shell 4 close to the circuit board 1 is provided with an upper pressing part 3, and an upper protruding part 5 is arranged between the upper shell 4 and the upper pressing part 3.
The width of one side of the upper pressing part 3 close to the circuit board 1 is smaller than that of one side of the upper pressing part 3 far away from the circuit board 1.
Specifically, the side of the upper pressing portion 3 is provided with a first upper inclined surface 2, one side of the upper pressing portion 3, which is far away from the first upper inclined surface 2, is provided with a second upper inclined surface 6, and the cross section of the upper pressing portion 3 is trapezoidal.
The upper shell 4, the upper convex part 5 and the upper pressing part 3 are made of plastic through injection molding and integrated molding.
One side of the lower shell 9 close to the circuit board 1 is provided with a lower pressing part 10, and a lower convex part 8 is arranged between the lower shell 9 and the lower pressing part 10.
The width of the lower pressing part 10 close to the circuit board 1 is smaller than that of the upper pressing part 3 far away from the circuit board 1.
Specifically, a first lower inclined surface 11 is arranged on the side surface of the lower pressing portion 10, a second lower inclined surface 7 is arranged on one side, away from the first lower inclined surface 11, of the lower pressing portion 10, and the cross section of the lower pressing portion 10 is trapezoidal.
The lower case 9, the lower protrusion 8 and the lower pressing portion 10 are integrally formed of plastic by injection molding.
The upper pressing portion 3 is in interference fit with the circuit board 1, and the lower pressing portion 10 is in interference fit with the circuit board 1.
Example 3: as shown in fig. 3, a circuit board fixing structure includes an upper case 4 and a lower case 9, a circuit board 1 is disposed between the upper case 4 and the lower case 9, and the circuit board 1 is a PCB.
One side of the upper shell 4 close to the circuit board 1 is provided with an upper pressing part 3, and an upper protruding part 5 is arranged between the upper shell 4 and the upper pressing part 3.
The width of one side of the upper pressing part 3 close to the circuit board 1 is smaller than that of one side of the upper pressing part 3 far away from the circuit board 1.
Specifically, the side surface of the upper pressing part 3 is provided with a first upper inclined surface 2, and the cross section of the upper pressing part 3 is triangular.
The upper shell 4, the upper convex part 5 and the upper pressing part 3 are made of plastic through injection molding and integrated molding.
One side of the lower shell 9 close to the circuit board 1 is provided with a lower pressing part 10, and a lower convex part 8 is arranged between the lower shell 9 and the lower pressing part 10.
The width of the lower pressing part 10 close to the circuit board 1 is smaller than that of the upper pressing part 3 far away from the circuit board 1.
Specifically, a first lower inclined surface 11 is arranged on the side surface of the lower pressing portion 10, and the cross section of the lower pressing portion 10 is triangular.
The lower case 9, the lower protrusion 8 and the lower pressing portion 10 are integrally formed of plastic by injection molding.
The upper pressing portion 3 is in interference fit with the circuit board 1, and the lower pressing portion 10 is in interference fit with the circuit board 1.
Example 4: as shown in fig. 4, the circuit board fixing structure includes an upper case 4 and a lower case 9, a circuit board 1 is disposed between the upper case 4 and the lower case 9, and the circuit board 1 is a PCB.
One side of the upper shell 4 close to the circuit board 1 is provided with an upper pressing part 3, and an upper protruding part 5 is arranged between the upper shell 4 and the upper pressing part 3.
The width of one side of the upper pressing part 3 close to the circuit board 1 is smaller than that of one side of the upper pressing part 3 far away from the circuit board 1.
Specifically, the side of the upper pressing part 3 is provided with a first upper inclined plane 2, and the cross section of the upper pressing part 3 is trapezoidal.
The upper shell 4, the upper convex part 5 and the upper pressing part 3 are made of plastic through injection molding and integrated molding.
One side of the lower shell 9 close to the circuit board 1 is provided with a lower pressing part 10, and a lower convex part 8 is arranged between the lower shell 9 and the lower pressing part 10.
The width of the lower pressing part 10 close to the circuit board 1 is smaller than that of the upper pressing part 3 far away from the circuit board 1.
Specifically, a first lower inclined surface 11 is arranged on the side surface of the lower pressing portion 10, and the cross section of the lower pressing portion 10 is trapezoidal.
The lower case 9, the lower protrusion 8 and the lower pressing portion 10 are integrally formed of plastic by injection molding.
The upper pressing portion 3 is in interference fit with the circuit board 1, and the lower pressing portion 10 is in interference fit with the circuit board 1.
This scheme adopts and compresses tightly portion 3 and compresses tightly 10 structures down and push down circuit board 1. When in design, the upper pressing part 3 and the lower pressing part 10 have certain interference fit with the circuit board 1. After the assembly, the interference position of the tips of the upper pressing part 3 and the lower pressing part 10 is extruded with the circuit board 1 to generate deformation, and the undeformed position still has certain rigidity, so that the circuit board 1 can be well pressed between the upper shell 4 and the lower shell 9, and the vibration in the product is prevented.
The present invention is not limited to the embodiments described above, but the embodiments are only preferred embodiments of the present invention and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should fall within the patent coverage of the present invention.
Claims (8)
1. The utility model provides a circuit board fixed knot constructs, includes epitheca (4) and inferior valve (9), be equipped with circuit board (1), its characterized in that between epitheca (4) and inferior valve (9): one side that epitheca (4) are close to circuit board (1) is equipped with compresses tightly portion (3), one side that inferior valve (9) are close to circuit board (1) is equipped with down compresses tightly portion (10), go up compress tightly portion (3) and circuit board (1) interference fit, compress tightly portion (10) and circuit board (1) interference fit down.
2. The circuit board fixing structure according to claim 1, wherein: the width of one side, close to the circuit board (1), of the upper pressing part (3) is smaller than that of one side, far away from the circuit board (1), of the upper pressing part (3); the width of one side, close to the circuit board (1), of the lower pressing portion (10) is smaller than the width of one side, far away from the circuit board (1), of the upper pressing portion (3).
3. The circuit board fixing structure according to claim 2, wherein: the side of the upper pressing part (3) is provided with a first upper inclined plane (2), and the side of the lower pressing part (10) is provided with a first lower inclined plane (11).
4. the circuit board fixing structure according to claim 3, wherein: a second upper inclined plane (6) is arranged on one side, away from the first upper inclined plane (2), of the upper pressing part (3); and a second lower inclined plane (7) is arranged on one side, away from the first lower inclined plane (11), of the lower pressing part (10).
5. The circuit board fixing structure according to one of claims 3 or 4, wherein: the cross section of the upper pressing part (3) is triangular or trapezoidal; the cross section of the lower pressing part (10) is triangular or trapezoidal.
6. The circuit board fixing structure according to any one of claims 1 to 4, wherein: an upper protruding part (5) is arranged between the upper shell (4) and the upper pressing part (3).
7. The circuit board fixing structure according to any one of claims 1 to 4, wherein: a lower convex part (8) is arranged between the lower shell (9) and the lower pressing part (10).
8. The circuit board fixing structure according to any one of claims 1 to 4, wherein: the upper pressing part (3) is made of plastic, and the lower pressing part (10) is made of plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920281918.6U CN209768023U (en) | 2019-03-06 | 2019-03-06 | Circuit board fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920281918.6U CN209768023U (en) | 2019-03-06 | 2019-03-06 | Circuit board fixing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209768023U true CN209768023U (en) | 2019-12-10 |
Family
ID=68753689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920281918.6U Active CN209768023U (en) | 2019-03-06 | 2019-03-06 | Circuit board fixing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209768023U (en) |
-
2019
- 2019-03-06 CN CN201920281918.6U patent/CN209768023U/en active Active
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| GR01 | Patent grant |