CN214481528U

CN214481528U - PCB assembling limiting column structure

Info

Publication number: CN214481528U
Application number: CN202120619712.7U
Authority: CN
Inventors: 蔡明�
Original assignee: Guiyang Yongqing Instruments and Electronic Science and Technology Co Ltd
Current assignee: Guiyang Yongqing Intelligent Control Technology Co ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-10-22
Anticipated expiration: 2031-03-26

Abstract

The utility model provides a spacing post structure of PCB equipment, including fixed plate, PCB board, the PCB board overlaps on the fixed plate, is equipped with a plurality of spacing posts on the fixed plate, and the PCB board corresponds spacing post position and is equipped with spacing hole, spacing hole and spacing post cooperation, spacing post middle part is equipped with the notch along length direction, and the notch lower extreme is less than the PCB board. The utility model discloses simple structure, low in manufacturing cost has improved the adaptability between spacing post and the spacing hole through the notch to reduced spacing post and the spacing hole size requirement of adding man-hour, guaranteed that the PCB board assembles smoothly on the fixed plate, improved the location effect moreover.

Description

PCB assembling limiting column structure

Technical Field

The utility model relates to a PCB equipment auxiliary structure technical field, concretely relates to spacing post structure of PCB equipment.

Background

Under the condition of assembling, positioning and processing the PCB and the fixing plate, the PCB needs to be limited. The original PCB limiting column is characterized in that a round table is arranged on a fixing plate, a limiting hole is designed at a corresponding position of a PCB, and the limiting hole is matched with the round table to play a limiting role. However, in the actual use process, a certain deviation exists between the limit hole and the circular truncated cone, and a structure in clearance fit needs to be designed to ensure that the circular truncated cone can be inserted into the limit hole. Therefore, when the limiting column is larger and the limiting hole is smaller in the manufacturing process, the PCB and the fixing plate are difficult to assemble; otherwise, the gap becomes larger, the positioning effect is not good, the subsequent processing is inconvenient, and the circuit element is easily damaged when the product is vibrated.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a spacing post structure of PCB equipment.

The utility model discloses a following technical scheme can realize.

The utility model provides a spacing post structure of PCB equipment, including fixed plate, PCB board, the PCB board overlaps on the fixed plate, is equipped with a plurality of spacing posts on the fixed plate, and the PCB board corresponds spacing post position and is equipped with spacing hole, spacing hole and spacing post cooperation, spacing post middle part is equipped with the notch along length direction, and the notch lower extreme is less than the PCB board.

The limiting column comprises a first section, a second section and a third section from top to bottom, the diameter of the first section is smaller than that of the limiting hole by at least 1mm, the second section is in clearance fit with the limiting hole, and the third section is in transition fit or interference fit with the limiting hole.

And a boss section is further arranged at one end of the third section, which is far away from the second section, the diameter of the boss section is at least 2mm larger than the limiting hole, and one end of the boss section, which faces the limiting hole, is a plane.

The third section is positioned in the middle of the boss section.

The first section is positioned in the middle of the second section, and the second section is positioned in the middle of the third section. The PCB board moves smoothly downwards, and the resistance is reduced.

The limiting column is further provided with a pressing cap, and the middle of the pressing cap is provided with a protruding structure matched with the notch.

The edge of the pressing cap is connected with the fixing plate through a flexible belt.

The opposite two sides of the fixed plate are respectively distributed with the same number of limiting columns, and the directions of the notches on the two adjacent limiting columns are different.

The beneficial effects of the utility model reside in that:

the utility model discloses simple structure, low in manufacturing cost has improved the adaptability between spacing post and the spacing hole through the notch to reduced spacing post and the spacing hole size requirement of adding man-hour, guaranteed that the PCB board assembles smoothly on the fixed plate, improved the location effect moreover.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a detailed view of portion a of fig. 1.

Fig. 3 is a top view of fig. 1.

In the figure: 1-fixing the plate; 2-a PCB board; 3-a limiting column; 4-limiting holes; 5-notch; 6-first stage; 7-a second stage; 8-the third stage; 9-a boss section; 10-pressing the cap.

Detailed Description

The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.

As shown in fig. 1-3, the structure of the present invention is schematically shown as follows:

the utility model provides a spacing post 3 structure of PCB equipment, including fixed plate 1, PCB board 2 overlaps on fixed plate 1, is equipped with a plurality of spacing posts 3 on the fixed plate 1, and PCB board 2 corresponds spacing post 3 positions and is equipped with spacing hole 4, spacing hole 4 and the cooperation of

spacing post

3, 3 middle parts of spacing post are equipped with notch 5 along length direction, and 5 lower extremes of notch are less than PCB board 2.

The working principle is as follows: when the limiting column 3 is larger and the limiting hole 4 is smaller in the manufacturing process, two sides of the limiting column 3 move towards the notch 5, so that the PCB 2 can be smoothly assembled on the fixing plate 1. The provision of the rebate 5 therefore reduces the requirement for a clearance fit between the post 3 and the hole 4, which is no longer a necessary design requirement. When the limiting column 3 is small and the limiting hole 4 is large in the manufacturing process, the positioning effect can be achieved by offsetting the errors of the limiting columns 3 and the limiting hole 4, and even if gaps exist, the flexibility of two sides of the notch 5 can also achieve the buffering effect on vibration to protect circuit elements.

The utility model discloses simple structure, low in manufacturing cost has improved the adaptability between spacing post 3 and the spacing hole 4 through notch 5 to reduced spacing post 3 and the spacing hole 4 size requirement of adding man-hour, guaranteed that PCB board 2 assembles smoothly on fixed plate 1, improved the location effect moreover.

The limiting column 3 comprises a first section 6, a second section 7 and a third section 8 from top to bottom, the diameter of the first section 6 is smaller than the limiting hole 4 by at least 1mm, the second section 7 is in clearance fit with the limiting hole 4, and the third section 8 is in transition fit or interference fit with the limiting hole 4. The first section 6 with the diameter smaller than that of the limiting hole 4 ensures that the limiting column 3 can enter the limiting hole 4, so that the assembly difficulty is reduced; the eccentricity between the limiting hole 4 and the limiting column 3 is reduced through transition and guide of the second section 7, so that alignment is facilitated; through the third section 8, the stability after the assembly is guaranteed.

And one end of the third section 8, which is far away from the second section 7, is also provided with a boss section 9, the diameter of the boss section 9 is at least 2mm larger than the limiting hole 4, and one end of the boss section 9, which faces the limiting hole 4, is a plane. The PCB board 2 is convenient to be positioned, and the PCB board 2 is in the same plane.

The third section 8 is located in the middle of the boss section 9. The edge of the limiting hole 4 is uniformly supported, and the damage to the limiting hole 4 when the PCB 2 is pressed is reduced.

The first section 6 is located in the middle of the second section 7 and the second section 7 is located in the middle of the third section 8. The PCB board 2 can move smoothly when moving downwards, and the resistance is reduced.

The limiting column 3 is further provided with a pressing cap 10, and the middle of the pressing cap 10 is provided with a protruding structure matched with the notch 5. After the PCB board 2 is assembled, the convex structure on the pressing cap 10 is pressed into the notch 5, so that the positioning rigidity is improved conveniently.

The edge of the pressing cap 10 is connected with the fixing plate 1 through a flexible belt. So that the press cap 10 can be conveniently taken and the press cap 10 can be prevented from being lost.

The opposite two sides of the fixed plate 1 are respectively distributed with the same number of limiting columns 3, and the directions of the notches 5 on the two adjacent limiting columns 3 are different. The limiting columns 3 are distributed on two opposite sides in the same number, so that the positioning position can be conveniently found during assembly, and the operation convenience is improved; through the notch 5 that faces towards the difference, be convenient for make spacing post 3 when little and spacing hole 4 is big partially, the error of many pairs of spacing post 3, spacing hole 4 offsets each other, improves the location effect.

Claims

1. The utility model provides a spacing post structure of PCB equipment which characterized in that: including fixed plate (1), PCB board (2) overlap on fixed plate (1), are equipped with a plurality of spacing posts (3) on fixed plate (1), and PCB board (2) correspond spacing post (3) position and are equipped with spacing hole (4), spacing hole (4) and spacing post (3) cooperation, spacing post (3) middle part is equipped with notch (5) along length direction, and notch (5) lower extreme is less than PCB board (2).

2. The PCB assembly restraint post structure of claim 1, wherein: the limiting column (3) comprises a first section (6), a second section (7) and a third section (8) from top to bottom, the diameter of the first section (6) is smaller than that of the limiting hole (4) by at least 1mm, the second section (7) is in clearance fit with the limiting hole (4), and the third section (8) is in transition fit or interference fit with the limiting hole (4).

3. The PCB assembly restraint post structure of claim 2, wherein: and one end of the third section (8) far away from the second section (7) is also provided with a boss section (9), the diameter of the boss section (9) is larger than the limiting hole (4) by at least 2mm, and one end of the boss section (9) facing the limiting hole (4) is a plane.

4. The PCB assembly spacing post structure of claim 3, wherein: the third section (8) is positioned in the middle of the boss section (9).

5. The PCB assembly restraint post structure of claim 2, wherein: the first section (6) is positioned in the middle of the second section (7), and the second section (7) is positioned in the middle of the third section (8).

6. The PCB assembly restraint post structure of claim 1, wherein: the limiting column (3) is further provided with a pressing cap (10), and the middle of the pressing cap (10) is provided with a protruding structure matched with the notch (5).

7. The PCB assembly spacing post structure of claim 6, wherein: the edge of the pressing cap (10) is connected with the fixing plate (1) through a flexible belt.

8. The PCB assembly spacing post structure of claim 6, wherein: the fixing plate is characterized in that the two opposite sides of the fixing plate (1) are respectively provided with the same number of limiting columns (3), and the directions of notches (5) on the two adjacent limiting columns (3) are different.