CN214957429U

CN214957429U - Power contact pin for PCB

Info

Publication number: CN214957429U
Application number: CN202121192583.4U
Authority: CN
Inventors: 魏里元; 刘在高
Original assignee: Wuhu Ruitong Communication Technology Co ltd
Current assignee: Wuhu Ruitong Communication Technology Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-11-30
Anticipated expiration: 2031-05-31

Abstract

The utility model discloses a power contact pin for PCB, including the contact pin main part, the contact pin main part is connected with second grafting end, and the through-hole has been seted up to contact pin main part outer lane, and the outer lane of contact pin main part has seted up annular rubber ring fixed slot, and the contact pin main part is kept away from second grafting end one end and has been seted up logical groove, lead to inslot portion and install first grafting end, the one end center of first grafting end is fixed with the ejector pin, and the one end that first grafting end is close to the ejector pin still is fixed with the shell fragment of symmetry form. This power contact pin for PCB is at the in-process that uses, and the contact pin outside is provided with fastening structure, makes the metal contact pin can block in the sheathed tube of PCB board, can improve contact pin and sheathed tube connection effect simultaneously for contact pin and bushing transport signal or power are more stable, have also reduced the probability that the PCB board breaks down.

Description

Power contact pin for PCB

Technical Field

The utility model relates to a power connection terminal field specifically is a power contact pin for PCB.

Background

In various communication equipment, the PCB (printed circuit board) is widely applied, almost all the communication equipment is provided with, some energy transmission required by each PCB uses various electric connectors, the connection and the disassembly between the boards can be very convenient, but for some PCB boards which do not need to be disassembled, most of the PCB boards are welded by metal pins.

When the existing PCB is used, if the contact pin of the PCB is not stably inserted into the PCB sleeve, poor contact between the contact pin and the PCB sleeve is caused, the problem of connection between the contact pin and the PCB sleeve is influenced, the connection effect of the contact pin and the PCB sleeve is reduced, and signal or power transmission is influenced.

(II) the metal contact pin of the existing PCB board can be skewed in the jack of the PCB board in the welding process, so that the metal contact pin is easy to be deviated in the welding process, the metal contact pin is skewed in welding, and the subsequent metal contact pin is affected in the splicing work.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a power contact pin for PCB to solve the in-process that the PCB board that has now on the existing market that above-mentioned background art provided is using, if the contact pin of PCB board does not stably insert when PCB board sleeve pipe, will cause the contact failure between contact pin and the PCB board sleeve pipe, influence contact pin and PCB board sheathed tube problem of being connected, reduce contact pin and PCB board sheathed tube linkage effect, can influence signal or power transmission's problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a power contact pin for PCB, includes the contact pin main part, the contact pin main part is connected with the second end of pegging graft, and the through-hole has been seted up to contact pin main part outer lane, and the outer lane of contact pin main part has seted up annular rubber ring fixed slot, and the contact pin main part is kept away from second end of pegging graft and has been seted up logical groove, it has first end of pegging graft to lead to inslot portion to install, and the one end center of first end of pegging graft is fixed with the ejector pin, and the one end that first end of pegging graft is close to the ejector pin still is fixed with the shell fragment of symmetry form.

Preferably, one end of the first plugging end far away from the contact pin main body is hemispherical.

Preferably, the outer part of the elastic sheet is arc-shaped, the position of the elastic sheet in the through groove corresponds to the position of the through hole, and one end, far away from the first inserting end, of the elastic sheet is welded on the inner wall of the through hole.

Preferably, the through groove is cylindrical, the central line of the through groove and the central line of the contact pin main body are on the same straight line, a spring is arranged in the through groove, and the diameter of an outer ring of the spring close to one end of the ejector rod is smaller than that of the ejector rod.

Preferably, the rubber ring fixing grooves are three, the rubber ring fixing grooves are distributed in a parallel mode, and annular rubber rings are arranged inside the rubber ring fixing grooves.

Preferably, the through holes are symmetrically distributed about the center line of the contact pin main body and communicated with the inside of the through groove.

Compared with the prior art, the beneficial effects of the utility model are that:

one of them, this power pin for PCB is at the in-process that uses, and the contact pin outside is provided with fastening structure, makes metal contact pin can block in the sheathed tube of PCB board, can improve contact pin and sheathed tube connected effect simultaneously for contact pin and sleeve pipe transport signal or power are more stable, have also reduced the probability that the PCB board broke down.

And secondly, the power supply contact pin for the PCB is in the production process, the metal contact pin is welded, the outer part of the contact pin is provided with a positioned rubber ring, the rubber ring can be clamped in a through hole of a PCB to be installed, the position of the contact pin is fixed through the rubber ring, the contact pin is prevented from being inclined in the bonding process, and the welding effect of the contact pin is improved.

Drawings

Fig. 1 is a schematic view of a power pin structure for a PCB of the present invention;

fig. 2 is a cross-sectional view of a power pin a-a for PCB of the present invention;

fig. 3 is a schematic structural view of a main body of a power pin for a PCB of the present invention;

fig. 4 is a schematic diagram of a first plug terminal structure of a power pin for a PCB of the present invention.

In the figure: 1. a first plug end; 2. a spring plate; 3. a pin body; 4. an annular rubber ring; 5. a second plug end; 6. a spring; 7. a rubber ring fixing groove; 8. a through groove; 9. a through hole; 10. and a push rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a power supply contact pin for a PCB comprises a contact pin main body 3, wherein the contact pin main body 3 is connected with a second inserting end 5, the outer ring of the contact pin main body 3 is provided with a through hole 9, the outer ring of the contact pin main body 3 is provided with an annular rubber ring fixing groove 7, one end of the contact pin main body 3, which is far away from the second inserting end 5, is provided with a through groove 8, a first inserting end 1 is arranged in the through groove 8, the center of one end of the first inserting end 1 is fixedly provided with a push rod 10, one end of the first inserting end 1, which is close to the push rod 10, is also fixedly provided with symmetrical elastic pieces 2, the first inserting end 1 of the structure is extruded when being pushed against the inner wall of a PCB sleeve, the first inserting end 1 retracts towards the through groove 8, the first inserting end 1 can drive the elastic pieces 2 to deform, the arc-shaped bulge of the elastic pieces 2 can be pushed out from the through hole 9, the arc-shaped surface of the elastic pieces 2 can extrude the inner wall of the sleeve, the outer side of the contact pin main body 3 is limited by the elastic pieces 2, make contact pin main part 3 be difficult to the condition that appears rocking, avoid contact failure to appear in contact pin main part 3 and PCB sleeve pipe.

The one end that first grafting end 1 kept away from contact pin main part 3 is the hemisphere, and the outside of the first grafting end 1 hemisphere end of this structure is more level and smooth, and first grafting end 1 is when entering into the inside of PCB sleeve pipe, and the smooth surface of first grafting end 1 can not cause great friction to PCB sleeve pipe inner wall, and can reduce the sheathed tube wearing and tearing of PCB board.

The outside arc that is of shell fragment 2, shell fragment 2 is corresponding with the position of through-hole 9 in leading to the position of inslot 8, shell fragment 2 keeps away from the one end of first grafting end 1 through the welding on through-hole 9 inner wall, card that shell fragment 2 of this structure can be accurate in through-hole 9, simultaneously when 2 one end of shell fragment is fixed on through-hole 9 inner wall, the one end position of shell fragment 2 can be restricted, when the 2 other end of shell fragment receives the compression of first grafting end 1, shell fragment 2 can take place deformation, like this shell fragment 2 only can follow through-hole 9 inside and stretch out, shell fragment 2 can not follow through-hole 9 inboards and break away from, guarantee that shell fragment 2 can pass through-hole 9 and push up on PCB sleeve pipe inner wall.

The through groove 8 is cylindrical, the central line of the through groove 8 and the central line of the pin body 3 are positioned on the same straight line, the spring 6 is arranged in the through groove 8, the diameter of the outer ring of the spring 6 close to one end of the ejector rod 10 is smaller than that of the outer ring of the ejector rod 10, when one end of the first inserting end 1 far away from the pin body 3 is extruded by the inner wall of the PCB sleeve, the first inserting end 1 retracts into the through groove 8, the first inserting end 1 drives the ejector rod 10 to move towards the spring 6, the ejector rod 10 compresses the spring 6, when the pin body 3 is separated from the PCB sleeve, the compressed spring 6 can push the ejector rod 10 towards the direction of the first inserting end 1, because one end of the first inserting end 1 far away from the pin body 3 cannot be extruded by the inner wall of the PCB sleeve, under the pushing action of the spring 6, the spring 6 can push the first inserting end 1 out from the through groove 8, make first grafting end 1 and shell fragment 2 resume original state, the central line that leads to groove 8 and the central line of contact pin main part 3 are in same straight line, and the route that first grafting end 1 contracts of contracting can be restricted like this, makes first grafting end 1 can not blocked when entering into logical groove 8, improves the removal effect of first grafting end 1.

The three rubber ring fixing grooves 7 are arranged, the rubber ring fixing grooves 7 are distributed in parallel, the annular rubber ring 4 is arranged inside the rubber ring fixing groove 7, when the contact pin main body 3 of the structure is inserted into the mounting hole of the PCB, the annular rubber ring 4 in the rubber ring fixing groove 7 can also enter the mounting hole of the PCB, the outer ring of the annular rubber ring 4 can be tightly attached to the inner wall of the mounting hole of the PCB, the annular rubber ring 4 can fix the contact pin main body 3 at the position of the mounting hole of the PCB, so that the contact pin main body 3 can not be inclined during welding, the welding effect of the contact pin main body 3 is improved, the rubber ring fixing groove 7 plays a role of fixing the annular rubber ring 4, make annular rubber circle 4 fixed in the position of 3 outer walls of contact pin main part, avoid annular rubber circle 4 the gliding condition to appear on 3 outer walls of contact pin main part, make entering into the mounting hole of PCB board that annular rubber circle 4 can be accurate.

Through-hole 9 is distributed about the central line symmetry of contact pin main part 3, and through-hole 9 is linked together with leading to inslot 8 inside, and the through-hole 9 of this structure plays the effect that holds shell fragment 2, and shell fragment 2 stretches out from contact pin main part 3 is inside, makes things convenient for shell fragment 2 to push up the sheathed tube of other PCB boards, and through-hole 9 is linked together with leading to inslot 8 inside simultaneously, makes things convenient for first grafting end 1 to carry out the extruded work of linkage to shell fragment 2.

According to the working principle of the device, when the contact pin main body 3 is installed, the contact pin main body 3 is firstly inserted into a PCB (printed circuit board) mounting hole, the second inserting end 5 at one end of the contact pin main body 3 can be clamped at the outer side of the PCB mounting hole to limit one end of the contact pin main body 3, the annular rubber ring 4 in the rubber ring fixing groove 7 can also enter the PCB mounting hole, the outer ring of the annular rubber ring 4 can be tightly attached to the inner wall of the PCB mounting hole, the annular rubber ring 4 can fix the contact pin main body 3 at the position of the PCB mounting hole, so that the contact pin main body 3 cannot be inclined during welding, the welding effect of the contact pin main body 3 is improved, the rubber ring fixing groove 7 plays a role in fixing the annular rubber ring 4, the position of the annular rubber ring 4 on the outer wall of the contact pin main body 3 is fixed, and the condition that the annular rubber ring 4 slides on the outer wall of the contact pin main body 3 is avoided, the annular rubber ring 4 can accurately enter into a mounting hole of a PCB, when the device is used, a contact pin main body 3 of the device is firstly inserted into other PCB sleeves, when the contact pin main body 3 completely enters into the PCB sleeves, the PCB sleeves can extrude a first inserting end 1, the first inserting end 1 retracts into a through groove 8, the first inserting end 1 drives a push rod 10 to move towards a spring 6, the push rod 10 compresses the spring 6, meanwhile, when the first inserting end 1 retracts towards the through groove 8, the first inserting end 1 extrudes a spring plate 2, the spring plate 2 is extruded by the first inserting end 1 to deform, an arc-shaped end of the spring plate 2 can extend out from the through hole 9 until the arc-shaped end of the spring plate 2 is propped against the inner wall of the PCB sleeve, the position of the contact pin main body 3 is clamped, and the arc-shaped end of the spring plate 2 props against the inner wall of the PCB sleeve, shell fragment 2 and PCB bushing inner wall are connected compacter, shell fragment 2 can not take place the condition of contact failure with PCB bushing inner wall, improve the device's grafting effect, when contact pin main part 3 was extracted from PCB bushing inside, compressed spring 6 can push up ejector pin 10 towards the direction of first grafting end 1, because the one end that contact pin main part 3 was kept away from to first grafting end 1 can not receive the extrusion of PCB bushing inner wall, under the effect that spring 6 promoted, spring 6 can be ejecting from leading to groove 8 with first grafting end 1, make first grafting end 1 and shell fragment 2 resume original state.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A power contact pin for a PCB is characterized in that; including contact pin main part (3), contact pin main part (3) are connected with second grafting end (5), and through-hole (9) have been seted up to contact pin main part (3) outer lane, and the outer lane of contact pin main part (3) has seted up annular rubber ring fixed slot (7), and contact pin main part (3) are kept away from second grafting end (5) one end and have been seted up logical groove (8), lead to groove (8) internally mounted have first grafting end (1), and the one end center of first grafting end is fixed with ejector pin (10), and the one end that first grafting end (1) is close to ejector pin (10) still is fixed with shell fragment (2) of symmetry form.

2. A power pin for a PCB as claimed in claim 1, wherein: one end, far away from the contact pin main body (3), of the first plugging end head (1) is hemispherical.

3. A power pin for a PCB as claimed in claim 1, wherein: the outer portion of the elastic sheet (2) is arc-shaped, the position of the elastic sheet (2) in the through groove (8) corresponds to the position of the through hole (9), and one end, far away from the first inserting end (1), of the elastic sheet (2) is welded on the inner wall of the through hole (9).

4. A power pin for a PCB as claimed in claim 1, wherein: lead to groove (8) inside for cylindrical, lead to the central line of groove (8) and the central line of contact pin main part (3) and be in same straight line, lead to groove (8) internally mounted and have spring (6), the outer lane diameter that spring (6) are close to ejector pin (10) one end is less than the outer lane diameter of ejector pin (10).

5. A power pin for a PCB as claimed in claim 1, wherein: rubber ring fixed slot (7) have seted up threely altogether, and rubber ring fixed slot (7) are the paralleling form and distribute on contact pin main part (3), and the inside of rubber ring fixed slot (7) is provided with annular rubber circle (4).

6. A power pin for a PCB as claimed in claim 1, wherein: the through holes (9) are symmetrically distributed about the central line of the contact pin main body (3), and the through holes (9) are communicated with the inside of the through groove (8).