Needle seat fixing device for circuit board
By setting the positioning grooves and bumps in the needle seat fixing device, the problems of unstable connection between the needle seat and the circuit board and unstable connection between the copper needle and the housing are solved, stable connection and convenient disassembly and assembly are achieved, and the maintenanceability of the circuit is improved.
Patent Information
- Application Number
- CN202421650618.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-07-12
AI Technical Summary
The connection between the existing needle holder and the circuit board is unstable, the connection structure between the copper needle and the housing is unstable, and the fixing device is difficult to disassemble and assemble and affects maintenance.
A fixing device including a needle seat housing, a copper needle and a fixing housing is designed. By providing positioning grooves and bumps on the housing and copper needle, the stable connection between the copper needle and the housing is ensured, and multi-directional fixation is achieved through the vertical clamping of the limit grooves and bumps, which is convenient for disassembly and assembly.
The connection stability between the copper needle and the housing is improved, the circuit contact is avoided, and the device is convenient for disassembly and assembly and maintenance.
Smart Images
Figure CN223156300U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of needle base fixing devices, in particular to a needle base fixing device for a circuit board. Background Art
[0002] The needle base is used to fix and connect wires and circuit boards and is an indispensable component in electrical equipment. As a wire-to-board connector, one end of the needle base is connected to the wiring, and the other end is inserted into the circuit board to form a closed loop to ensure the smooth flow of the circuit or electrical signal. The needle bases in the prior art have the following problems: First, one end of the needle base is usually directly connected to the circuit board, and the connection between the needle base and the circuit board is unstable, which easily leads to poor contact between the needle base and the circuit board; Second, the connection structure between the copper needle and the housing is unstable, and relative sliding is likely to occur between the copper needle and the housing, which will also affect the use of the needle base; Third, if a fixing device is provided on the needle base, the needle base is usually directly fixed to the fixing device. However, when the needle base is repaired, the needle base and the fixing device cannot be disassembled, which will affect the maintenance by the staff. Summary of the Invention
[0003] In order to solve the above problems, the utility model provides a needle base fixing device for a circuit board that is easy to disassemble and assemble and can improve the connection stability between the copper needle and the housing.
[0004] The technical solution of the utility model: A needle base fixing device for a circuit board includes a needle base housing, a plurality of copper needles connected to the needle base housing, and a fixing housing connected to the copper needles. A plurality of first positioning grooves and second positioning grooves are respectively provided on the needle base housing and the fixing housing. The number of the first positioning grooves and the second positioning grooves is the same as the number of the copper needles. One end of the fixing housing is fixedly connected to the needle base housing. When the fixing housing and the needle base housing are in a connected state, the positions of both ends of the copper needle correspond to the positions of the first positioning groove and the second positioning groove respectively. A first positioning convex block is provided at the connection end of the copper needle and the fixing housing, and the width of the first positioning convex block is greater than the width of the second positioning groove.
[0005] With the above technical solution, since one end of the fixed housing is fixedly connected to the needle seat housing, one end of the copper needle is connected to the needle seat housing, and a first positioning convex block is provided at the connection end of the copper needle and the fixed housing, and the width of the first positioning convex block is greater than the width of the second positioning groove. Therefore, the relative positions of the copper needle, the fixed housing, and the needle seat housing are stable, so that when one end of the copper needle is fixed on the circuit board, relative sliding between the copper needle and the circuit board can be avoided, resulting in poor circuit contact. Further setting of the present utility model: a first limiting groove is provided on the needle seat housing, and a second limiting groove is further provided on the inner wall of the first limiting groove. A first limiting convex block and a second limiting convex block connected to the first limiting convex block are provided on the fixed housing. The shape and size of the first limiting convex block are adapted to those of the first limiting groove, and the shape and size of the second limiting convex block are adapted to those of the second limiting groove. When the first limiting convex block is connected to the first limiting groove, the position of the second limiting convex block corresponds to that of the second limiting groove, and the opening directions of the first limiting groove and the second limiting groove are perpendicular to each other.
[0006] With the above technical solution, since the shape and size of the first limiting convex block are adapted to those of the first limiting groove, the shape and size of the second limiting convex block are adapted to those of the second limiting groove, and the opening directions of the first limiting groove and the second limiting groove are perpendicular to each other. Therefore, when the first limiting convex block and the second limiting convex block are respectively clamped on the first limiting groove and the second limiting groove, multi-directional fixation of the fixed housing can be ensured, thereby improving the connection stability between the fixed housing and the needle seat housing. In addition, when it is necessary to disassemble the fixed housing and the needle seat housing, since the fixed housing and the needle seat housing are usually plastic parts and have a certain elasticity, the second limiting groove can be enlarged a little, the second limiting convex block can be first withdrawn from the second limiting groove, and then the first limiting convex block can be withdrawn from the first limiting groove, which can greatly facilitate the disassembly and assembly work between the fixed housing and the needle seat housing.
[0007] Further setting of the present utility model: a second positioning convex block is provided at the connection of the copper needle and the first positioning groove, and the width of the second positioning convex block is greater than the width of the first positioning groove. With the above technical solution, since the width of the second positioning convex block is greater than the width of the first positioning groove, both ends of the copper needle are restricted in the first limiting groove and the second limiting groove, and both ends of the copper needle cannot move, thereby further improving the relative position stability among the copper needle, the fixed housing, and the needle seat housing, so that when one end of the copper needle is fixed on the circuit board, relative sliding between the copper needle and the circuit board can be avoided, resulting in poor circuit contact.
[0008] Further setting of the present utility model: a plurality of third positioning convex blocks are further provided on the copper needle. When the copper needle is connected to the needle seat housing, the third positioning convex blocks are located inside the first limiting groove, and the third positioning convex blocks are in interference fit with the inner wall of the first limiting groove.
[0009] With the above technical solution, since a number of third positioning bumps are provided on the copper pin, and the third positioning bumps are in interference fit with the inner wall of the first limiting groove, the connection stability between the copper pin and the needle seat housing can be further improved, thereby further improving the relative position stability among the copper pin, the fixing housing and the needle seat housing, so that when one end of the copper pin is fixed on the circuit board, relative sliding between the copper pin and the circuit board can be avoided, resulting in poor circuit contact. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] FIG Figure 1 is a schematic structural view of a needle seat fixing device for a circuit board according to a specific embodiment of the present invention.
[0011] FIG Figure 2 is a schematic structural view of a needle seat fixing device for a circuit board according to a specific embodiment of the present invention.
[0012] FIG Figure 3 is a cross-sectional view of a needle seat fixing device for a circuit board according to a specific embodiment of the present invention.
[0013] 1 - needle seat housing, 2 - copper pin, 3 - fixing housing, 4 - first positioning groove, 5 - second positioning groove, 6 - first positioning bump, 7 - first limiting groove, 8 - second limiting groove, 9 - first limiting bump, 10 - second limiting bump, 11 - second positioning bump, 12 - third positioning bump. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0014] As Figures 1 - 3 shown, a needle seat fixing device for a circuit board includes a needle seat housing 1, a number of copper pins 2 connected to the needle seat housing 1, and a fixing housing 3 connected to the copper pins 2. A number of first positioning grooves 4 and second positioning grooves 5 are respectively provided on the needle seat housing 1 and the fixing housing 3. The number of the first positioning grooves 4 and the second positioning grooves 5 is the same as the number of the copper pins 2. One end of the fixing housing 3 is fixedly connected to the needle seat housing 1. When the fixing housing 3 and the needle seat housing 1 are in a connected state, the positions of both ends of the copper pin 2 respectively correspond to the positions of the first positioning groove 4 and the second positioning groove 5. A first positioning bump 6 is provided at the connection end of the copper pin 2 and the fixing housing 3, and the width of the first positioning bump 6 is greater than the width of the second positioning groove 5.
[0015] Since one end of the fixed housing 3 is fixedly connected to the needle seat housing 1, one end of the copper needle 2 is connected to the needle seat housing 1, and a first positioning bump 6 is provided at the connection end of the copper needle 2 and the fixed housing 3, and the width of the first positioning bump 6 is greater than the width of the second positioning groove 5. Therefore, the relative positions of the copper needle 2, the fixed housing 3, and the needle seat housing 1 are stable, so that when one end of the copper needle 2 is fixed on the circuit board, relative sliding between the copper needle 2 and the circuit board can be avoided, resulting in poor circuit contact.
[0016] The needle seat housing 1 is provided with a first limiting groove 7, and a second limiting groove 8 is further provided on the inner wall of the first limiting groove 7. The fixed housing 3 is provided with a first limiting bump 9 and a second limiting bump 10 connected to the first limiting bump 9. The shape and size of the first limiting bump 9 are adapted to those of the first limiting groove 7, and the shape and size of the second limiting bump 10 are adapted to those of the second limiting groove 8. When the first limiting bump 9 is connected to the first limiting groove 7, the position of the second limiting bump 10 corresponds to that of the second limiting groove 8, and the opening directions of the first limiting groove 7 and the second limiting groove 8 are perpendicular.
[0017] Since the shape and size of the first limiting bump 9 are adapted to those of the first limiting groove 7, the shape and size of the second limiting bump 10 are adapted to those of the second limiting groove 8, and the opening directions of the first limiting groove 7 and the second limiting groove 8 are perpendicular. Therefore, when the first limiting bump 9 and the second limiting bump 10 are respectively clamped on the first limiting groove 7 and the second limiting groove 8, multi-directional fixation of the fixed housing 3 can be ensured, thereby improving the connection stability between the fixed housing 3 and the needle seat housing 1. In addition, when it is necessary to disassemble the fixed housing 3 and the needle seat housing 1, since the fixed housing 3 and the needle seat housing 1 are usually plastic parts and have a certain elasticity, the second limiting groove 8 can be enlarged a little, the second limiting bump 10 can be withdrawn from the second limiting groove 8 first, and then the first limiting bump 9 can be withdrawn from the first limiting groove 7, which can greatly facilitate the disassembly and assembly work between the fixed housing 3 and the needle seat housing 1.
[0018] A second positioning bump 11 is provided at the connection between the copper needle 2 and the first positioning groove 4, and the width of the second positioning bump 11 is greater than the width of the first positioning groove 4.
[0019] Since the width of the second positioning bump 11 is greater than the width of the first positioning groove 4, both ends of the copper needle 2 are respectively restricted by the first limiting groove 7 and the second limiting groove 8, and both ends of the copper needle 2 cannot move, thereby further improving the relative position stability among the copper needle 2, the fixed housing 3, and the needle seat housing 1, so that when one end of the copper needle 2 is fixed on the circuit board, relative sliding between the copper needle 2 and the circuit board can be avoided, resulting in poor circuit contact.
[0020] A plurality of third positioning bumps 12 are further provided on the copper needle 2. When the copper needle 2 is connected to the needle seat housing 1, the third positioning bumps 12 are located inside the first limiting groove 7, and the third positioning bumps 12 are in interference fit with the inner wall of the first limiting groove 7.
[0021] Since a plurality of third positioning bumps 12 are further provided on the copper needle 2, and the third positioning bumps 12 are in interference fit with the inner wall of the first limiting groove 7, the connection stability between the copper needle 2 and the needle seat housing 1 can be further improved. Thus, the relative positions of the copper needle 2, the fixed housing 3, and the needle seat housing 1 can be further stabilized, so that when one end of the copper needle 2 is fixed on the circuit board, relative sliding between the copper needle 2 and the circuit board can be avoided, resulting in poor circuit contact.
Claims
1. A pin socket fixing device for a circuit board, characterized in that: It includes a needle base housing, a plurality of copper needles connected to the needle base housing, and a fixed housing connected to the copper needles. A plurality of first positioning grooves and second positioning grooves are respectively provided on the needle base housing and the fixed housing. The number of the first positioning grooves and the second positioning grooves is the same as the number of the copper needles. One end of the fixed housing is fixedly connected to the needle base housing. When the fixed housing and the needle base housing are in a connected state, the positions at both ends of the copper needle respectively correspond to the positions of the first positioning groove and the second positioning groove. A first positioning convex block is provided at the connection end of the copper needle and the fixed housing, and the width of the first positioning convex block is greater than the width of the second positioning groove.
2. The pin socket fixing device for a circuit board according to claim 1, characterized in that: A first limiting groove is provided on the needle base housing, and a second limiting groove is further provided on the inner wall of the first limiting groove. A first limiting convex block and a second limiting convex block connected to the first limiting convex block are provided on the fixed housing. The shape and size of the first limiting convex block are adapted to those of the first limiting groove, and the shape and size of the second limiting convex block are adapted to those of the second limiting groove. When the first limiting convex block is connected to the first limiting groove, the position of the second limiting convex block corresponds to that of the second limiting groove, and the opening directions of the first limiting groove and the second limiting groove are perpendicular to each other.
3. The pin socket fixing device for a circuit board according to claim 1, characterized in that: A second positioning convex block is provided at the connection part of the copper needle and the first positioning groove, and the width of the second positioning convex block is greater than the width of the first positioning groove.
4. The pin socket fixing device for a circuit board according to claim 3, characterized in that: A plurality of third positioning convex blocks are further provided on the copper needle. When the copper needle is connected to the needle base housing, the third positioning convex blocks are located inside the first limiting groove, and the third positioning convex blocks are in interference fit with the inner wall of the first limiting groove.