PCB fixing structure

Abstract

The utility model discloses a PCB board fixing structure, comprising a support, a fixer and a PCB board, the support is provided with a fixing column, the PCB board is provided with an installation hole corresponding to the fixing column, and the fixing column is installed in the installation hole; the fixing device is provided with an abutting face parallel to the PCB, the fixing device and the fixing column are fixed in a matched mode, and the PCB is locked on the support through the abutting face. According to the technical scheme, the fixing device is additionally arranged when the PCB is fixed to the support through the bolts, the fixing device is provided with the abutting face enabling the PCB to abut against the support, and in order to solve the problem that the PCB is inclined relative to the fixing columns on the support, the abutting face is designed to be parallel to the PCB, so that the abutting face can be well attached to the PCB, and the fixing effect is good. And then the fixing device is fixed on the fixing column, so that a locking effect is achieved, the PCB is tightly locked and fixed on the bracket, and the fixed installation of the PCB is completed.

Description

Technical Field

[0001] The utility model belongs to the technical field of lamp installation, and in particular relates to a PCB board fixing structure. Background Art

[0002] With the development of automotive tools, the innovation of lamps not only meets functional needs, but also pays more attention to design sense and recognition, which poses greater challenges to the optical design of lamps. In order to improve the light efficiency of LEDs, the light source efficiency of LEDs arranged perpendicular to the light-transmitting surface is the highest, which means that the installation structure for installing PCB substrates is more complicated. The commonly used fixing method for PCB substrates is screw locking, and it is necessary to ensure that the nut column and the PCB substrate maintain a vertical relationship. However, in order to ensure the efficiency of LED light sources, the placement of the PCB substrate cannot usually be kept perpendicular to the nut column. The installation direction of the nut column needs to be adjusted, resulting in the inconsistency between the ejection direction of the nut column body and the direction of the nut column. The usual practice is to use an internal extraction structure on the mold to achieve a vertical relationship between the nut column and the PCB substrate. When there are a large number of PCB boards in a single lamp and the placement directions are different, it will cause many nut columns and different internal extraction directions. The mold structure design is complex, resulting in high mold costs and low mold feasibility.

[0003] In view of the above problems, it is necessary to propose a new design idea to overcome the above-mentioned defects. Utility Model Content

[0004] In order to solve the technical problem in the background technology that the PCB substrate is inconvenient to install when the nut column is not perpendicular, the purpose of the utility model is to provide a PCB board fixing structure that can solve the above problem.

[0005] The technical solution for achieving the purpose of the utility model is: a PCB board fixing structure, comprising a bracket, a fixer and a PCB board, the bracket having a fixing column, the PCB board having a mounting hole corresponding to the fixing column, the fixing column being installed in the mounting hole; the fixer having an abutment surface parallel to the PCB board, the fixer and the fixing column are fixed in cooperation and the PCB board is locked on the bracket through the abutment surface.

[0006] In this technical solution, a fixer is added when the PCB board is fixed to the bracket using bolts. The fixer has an abutting surface for abutting the PCB board on the bracket. In order to solve the problem that the PCB board is tilted relative to the fixing column on the bracket, the abutting surface is designed to be parallel to the PCB board, so that the abutting surface can fit well on the PCB board. Then the fixer is fixed on the fixing column to play a locking role, and the PCB board is tightly locked and fixed on the bracket to complete the fixed installation of the PCB board. The structure is simple and easy to install, and there is no need to adjust the direction of the fixing column similar to the nut column style separately.

[0007] Furthermore, the fixture has an installation cavity, and the fixing column is fixed in the installation cavity. There are many ways to fix the fixing column in the installation cavity, such as a buckle on the outer wall of the fixing column and a slot on the inner wall of the installation cavity, and the buckle is inserted into the slot to complete the installation and fixation of the two.

[0008] Furthermore, it also includes a bolt, the fixing column is a nut column, the fixing device has a bolt hole, and the bolt passes through the bolt hole and is fixed in the nut column. The nut column has a threaded hole, the bolt cap of the bolt abuts on the bolt hole, and the bolt column is threadedly installed in the threaded hole, so that the fixing device and the fixing column are fixed. After the bolt is tightened, the abutting surface of the fixing device also abuts against the PCB board, and the PCB board is fixed on the bracket.

[0009] Furthermore, the abutting surface is provided with an abutting protrusion, and the abutting protrusion abuts against the PCB board. In order to prevent the gap between the abutting surface and the PCB board, which causes the PCB board to be loosely fixed and shake on the bracket later, after the abutting protrusion is used, close contact between the abutting protrusion and the PCB board can be achieved, and even if there are small grooves in some places on the PCB board, the abutting protrusion can also be fully in contact, and it is more stable after being fixed.

[0010] Furthermore, there are at least three abutment protrusions, which are evenly arranged along the circumferential direction of the abutment surface, to ensure uniform force during tightening and prevent damage to the PCB board due to uneven force.

[0011] Furthermore, the bracket is provided with a positioning column, and the positioner is provided with a positioning hole corresponding to the positioning column. The positioning column is inserted into the positioning hole, which can play a role in rapid installation and positioning. Furthermore, the cross-sectional area of ​​the positioning column gradually increases from the end to the root, that is, when the end of the positioning column is inserted into the positioning hole, it will be clamped at a certain position, and the fixing column is also inserted into the installation hole and reaches a suitable position, which also plays a role in limiting the fixing column in one direction, such as the X / Y direction.

[0012] Furthermore, a connecting rib is provided between the positioning column and the fixing column, the overall structural property is good, and the positioning column is not easy to shake or be damaged.

[0013] Furthermore, the connection ribs are respectively connected to the positioning column and the fixing column with rounded corners, thereby improving the connection strength and making the appearance more beautiful.

[0014] Furthermore, there is a limiting rib in the installation cavity, and the limiting rib is used to limit and fasten the fixed column in the installation cavity, that is, to limit the fixed column in another direction, such as the Z direction, to prevent it from shaking.

[0015] Furthermore, the diameter of the mounting hole is 0.5 mm to 1 mm larger than the cross-sectional diameter of the fixing column, so as to prevent the problem that some parts are deformed during production or installation and the fixing column cannot be installed in the mounting hole.

[0016] By adopting the above technical solution, the utility model has the following beneficial effects:

[0017] (1) When the PCB board and the nut column are not perpendicular, a fixing device is added, which has a contact surface parallel to the PCB board. After the fixing device is fixed on the nut column, the contact surface can abut and fasten the PCB board on the bracket to complete the fixation;

[0018] (2) The fixing device is provided with a bolt hole, and the bolt passes through the bolt hole and is threadedly installed in the threaded hole in the nut column, thereby completing the installation of the fixing device and the nut column, and the fixing method is simple and flexible;

[0019] (3) Positioning columns and positioning holes are provided to facilitate quick installation and limit the nut column in one direction;

[0020] (4) a limiting rib corresponding to the nut column is arranged in the installation cavity of the fixer to facilitate the limiting and tightening of the nut column in another direction;

[0021] (5) An abutting protrusion is provided on the abutting surface to solve the problem that there is often a gap between the abutting surface and the PCB board, and the PCB board shakes on the bracket due to loose abutment and fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to specific embodiments and in conjunction with the accompanying drawings.

[0023] Figure 1 It is an exploded view of the fixed structure in the utility model;

[0024] Figure 2 It is a cross-sectional view of the fixed structure in the utility model;

[0025] Figure 3 It is a cross-sectional view from another angle of the fixing structure in the utility model;

[0026] Figure 4 This is a schematic diagram of the fixing column of the utility model being installed in the installation hole;

[0027] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0028] Figure 6 This is a schematic diagram of the structure of the fixer in the utility model;

[0029] Figure 7 This is a schematic diagram of the structure of the bottom view of the fixer in the utility model;

[0030] Figure 8 It is a schematic diagram of the structure of the fixer in the utility model from a side view.

[0031] The numbers in the accompanying drawings are: 1 bracket; 2 fixer; 3 PCB board; 4 fixing column; 5 mounting hole; 6 abutment surface; 7 mounting cavity; 8 bolt; 9 bolt hole; 10 abutment protrusion; 11 positioning column; 12 positioning hole; 13 connecting rib; 14 limiting rib. DETAILED DESCRIPTION

[0032] Example:

[0033] like Figure 1-Figure 5 , Figure 8 As shown, this embodiment provides a PCB board fixing structure, including a bracket 1, a fixture 2 and a PCB board 3, the bracket 1 has a fixing column 4, the PCB board 3 has a mounting hole 5 corresponding to the fixing column 4, and the fixing column 4 is installed in the mounting hole 5; the fixture 2 has an abutment surface 6 parallel to the PCB board 3, the fixture 2 and the fixing column 4 are fixed together and the PCB board 3 is locked on the bracket 1 through the abutment surface 6. In this technical solution, a fixture 2 is added when the PCB board 3 is fixed on the bracket 1 using a bolt 8, and the fixture 2 has an abutment surface 6 for abutting the PCB board 3 on the bracket 1. In order to solve the problem that the PCB board 3 is inclined relative to the fixing column 4 on the bracket 1, the abutment surface 6 is designed to be parallel to the PCB board 3, so that the abutment surface 6 can fit well on the PCB board 3, and then the fixture 2 is fixed on the fixing column 4 to play a locking role, and the PCB board 3 is tightly locked and fixed on the bracket 1, completing the fixed installation of the PCB board 3. The structure is simple and the installation is convenient, and there is no need to separately adjust the 4 directions of the fixing column similar to the nut column style.

[0034] like Figure 7 As shown, the fixture 2 has an installation cavity 7, and the fixing column 4 is fixed in the installation cavity 7. There are many ways to fix the fixing column 4 in the installation cavity 7, such as a buckle on the outer wall of the fixing column 4, a slot on the inner wall of the installation cavity 7, and the buckle is inserted into the slot to complete the installation and fixation of the two. There is a limiting rib 14 in the installation cavity 7, and the limiting rib 14 is used for limiting and fastening the fixing column 4 in the installation cavity 7, that is, it plays a limiting role in another direction, such as the Z direction, to prevent it from shaking.

[0035] Preferably, the fixing column 4 is a nut column, the fixing device 2 is provided with a bolt hole 9, and the bolt 8 is fixed in the nut column through the bolt hole 9. The nut column has a threaded hole, the bolt cap of the bolt 8 abuts on the bolt hole 9, and the bolt column is threadedly installed in the threaded hole, thereby completing the fixing of the fixing device 2 and the fixing column 4. After the bolt 8 is tightened, the abutting surface 6 of the fixing device 2 also abuts against the PCB board 3, and the PCB board 3 is fixed on the bracket 1.

[0036] like Figure 8 As shown, the abutting surface 6 is provided with an abutting protrusion 10, and the abutting protrusion 10 abuts against the PCB board 3. In order to prevent the gap between the abutting surface 6 and the PCB board 3, which causes the PCB board 3 to be not firmly fixed and shake on the bracket 1 later, after the abutting protrusion 10 is adopted, the abutting protrusion 10 and the PCB board 3 can be in close contact. Even if there are small grooves in some places on the PCB board 3, the abutting protrusion 10 can also be in full contact, which is more stable after being fixed. There are at least three abutting protrusions 10, which are evenly arranged along the circumferential direction of the abutting surface 6 to ensure uniform force during tightening, and will not cause damage to the PCB board 3 due to uneven force.

[0037] like Figure 5 and Figure 6 As shown, the bracket 1 is provided with a positioning column 11, and the positioner is provided with a positioning hole 12 corresponding to the positioning column 11. The positioning column 11 is inserted into the positioning hole 12, which can play a role in rapid installation and positioning. Furthermore, the cross-sectional area of ​​the positioning column 11 gradually increases from the end to the root, that is, when the end of the positioning column 11 is inserted into the positioning hole 12, it will be clamped at a position. At this time, the fixing column 4 is also inserted into the installation hole 5 and reaches a suitable position, which also plays a role in limiting the fixing column 4 in one direction, such as the X / Y direction. There is a connecting rib 13 between the positioning column 11 and the fixing column 4, and the overall structure is good. The positioning column 11 is not easy to shake or damage. The connecting rib 13 is rounded at the connection between the positioning column 11 and the fixing column 4, which improves the connection strength and makes the appearance more beautiful.

[0038] Preferably, the diameter of the mounting hole 5 is 0.5 mm-1 mm larger than the cross-sectional diameter of the fixing column 4 , so as to prevent the fixing column 4 from being unable to be installed into the mounting hole 5 due to deformation of some parts during production or installation.

[0039] Working principle: During installation, the fixing column 4 passes through the mounting hole 5, and the positioning column 11 is inserted into the positioning hole 12 to complete the preliminary positioning; then the fixer 2 is sleeved on the fixing column 4, keeping the abutting surface 6 and the PCB board 3 in a parallel state, and the bolt 8 is installed from the bolt hole 9 into the threaded hole in the fixing column 4. As the bolt 8 is continuously tightened and fixed, the abutting protrusion 10 on the abutting surface 6 is tightly fastened to the PCB board 3, completing the fixation of the PCB board 3 on the bracket 1.

[0040] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A PCB board fixing structure, characterized in that: The invention comprises a bracket (1), a fixing device (2) and a PCB board (3); the bracket (1) is provided with a fixing column (4); the PCB board (3) is provided with a mounting hole (5) corresponding to the fixing column (4); the fixing column (4) is mounted in the mounting hole (5); the fixing device (2) is provided with an abutting surface (6) parallel to the PCB board (3); the fixing device (2) and the fixing column (4) are matched and fixed, and the PCB board (3) is locked on the bracket (1) through the abutting surface (6).

2. A PCB board fixing structure according to claim 1, characterized in that: The fixer (2) has a mounting cavity (7), and the fixing column (4) is fixed in the mounting cavity (7).

3. A PCB board fixing structure according to claim 2, characterized in that: It also includes a bolt (8), the fixing column (4) is a nut column, the fixer (2) has a bolt hole (9), and the bolt (8) passes through the bolt hole (9) and is fixed in the nut column.

4. A PCB board fixing structure according to claim 1, characterized in that: An abutment protrusion (10) is provided on the abutment surface (6), and the abutment protrusion (10) abuts against the PCB board (3).

5. A PCB board fixing structure according to claim 4, characterized in that: There are at least three abutment protrusions (10), which are evenly arranged along the circumferential direction of the abutment surface (6).

6. A PCB board fixing structure according to claim 1, characterized in that: The bracket (1) is provided with a positioning column (11), the positioner is provided with a positioning hole (12) corresponding to the positioning column (11), and the positioning column (11) is inserted into the positioning hole (12).

7. A PCB board fixing structure according to claim 6, characterized in that: A connecting rib (13) is provided between the positioning column (11) and the fixing column (4).

8. A PCB board fixing structure according to claim 7, characterized in that: The connection ribs (13) are respectively connected to the positioning column (11) and the fixing column (4) with rounded corners.

9. A PCB board fixing structure according to claim 2, characterized in that: The installation cavity (7) is provided with a limiting rib (14), and the limiting rib (14) is used for limiting and fastening the fixing column (4) in the installation cavity (7).

10. The PCB board fixing structure according to claim 1, characterized in that: The diameter of the mounting hole (5) is 0.5 mm to 1 mm larger than the cross-sectional diameter of the fixing column (4).

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