CN216214236U

CN216214236U - Magnetic attraction type terminal assembly

Info

Publication number: CN216214236U
Application number: CN202122550166.9U
Authority: CN
Inventors: 李培红; 杨海滨; 练宝文
Original assignee: Dongguan Leader Precision Industry Co Ltd
Current assignee: Dongguan Leader Precision Industry Co Ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-04-05
Anticipated expiration: 2031-10-22

Abstract

The utility model discloses a magnetic-type terminal assembly which has stable overcurrent capacity and stable connection, and PINs are not blocked and are not broken; the offset phenomenon can not occur, and the positioning effect is good. The utility model relates to a magnetic type terminal assembly which comprises a needle shaft and a needle tube, wherein the needle shaft is embedded and clamped in the needle tube; the needle tube comprises a top part, a bottom part and a partition plate positioned between the top part and the bottom part, the top part is provided with an accommodating space, the bottom part is provided with an accommodating cavity, and an elastic part is arranged in the accommodating space at the top part; the terminal assembly further comprises a wire end, a first magnetic piece and a second magnetic piece, the first magnetic piece is embedded in the accommodating cavity, the wire end comprises a port and a connecting wire, the second magnetic piece is embedded in the port, and the wire end and the needle tube are electrically connected through magnetic attraction contact of the first magnetic piece and the second magnetic piece. The needle tube tail groove structure is designed, so that the magnet is convenient to assemble, and the foolproof groove structure is designed in the needle tube tail groove structure to prevent the magnet from falling off; conduction is better.

Description

Magnetic attraction type terminal assembly

Technical Field

The utility model relates to the field of connectors, in particular to a magnetic attraction type terminal assembly of a connector.

Background

Spring-loaded terminal POGO PIN is a connection module who is applied to in the electronic product, mainly is applied to intelligence wearing formula, electronic consumer product etc. be applied to sport equipment, LED display screen, cell-phone loudspeaker, electronic book, rotatory battery charging outfit, field equipment charge, little sensor equipment, electronic lock, car fill electric pile, thermometer, scooter, intelligent knapsack etc. if the product is applied to.

POGO PIN comprises syringe needle, needle tubing, needle tail, in the connection between handheld electronic product's antenna, battery and the mainboard, bears electric current and signal transmission, has antidetonation functional structure. The test device can play a role in transmitting current in the test of a battery, a screen and a camera of the handheld electronic equipment.

But current transmission is not too stable when current POGO PIN connects, is applied to from the electric window (charging equipment such as portable power source), and the electric current that can bear is little, can't deal with the transmission of heavy current, and easy dislocation can take place the skew phenomenon during butt joint moreover, and positioning effect is poor, endangers card PIN and broken needle.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a magnetic attraction type terminal assembly which comprises a connecting structure, wherein the tail part of an elastic terminal (POGO PIN) and a wire core (wire end) adopt a magnetic attraction mode; the mobile phone has stable overcurrent capacity in charging a mobile phone battery, a screen and a camera, is stable in connection, and does not clamp PIN and break PINs; the offset phenomenon can not occur, and the positioning effect is good.

In order to achieve the above purpose, the present invention provides a magnetic-type terminal assembly, which adopts the following technical scheme:

a magnetic-type terminal assembly comprises a needle shaft and a needle tube, wherein the needle shaft is embedded and clamped in the needle tube; the needle tube comprises a top part, a bottom part and a partition plate positioned between the top part and the bottom part, the top part is provided with an accommodating space, the bottom part is provided with an accommodating cavity, and an elastic part is arranged in the accommodating space at the top part;

the terminal assembly further comprises a wire end, a first magnetic piece and a second magnetic piece, the first magnetic piece is embedded in the accommodating cavity, the wire end comprises a port and a connecting wire, the second magnetic piece is embedded in the port, the connecting wire is arranged at the tail of the port, and the wire end and the needle tube are electrically connected through magnetic attraction contact of the first magnetic piece and the second magnetic piece.

Further, in one embodiment, the bottom of the needle shaft is provided with an embedding part which is widened outwards, the embedding part of the needle shaft is embedded into the accommodating space of the top, the top end of the top is provided with a pipe orifice curling stop ring which is narrowed inwards, the top end of the embedding part abuts against the lower bottom of the pipe orifice curling stop ring, and the elastic piece abuts against the bottom end of the embedding part.

Further, in one embodiment, a conical cavity is formed in the top surface of the accommodating space, facing the top, of the partition board, and the bottom end of the elastic piece abuts against the top surface of the partition board.

Further, in one embodiment, the bottom end of the embedded part is concavely provided with a conical and/or cylindrical inner cavity, and the top end of the elastic element abuts against the inner cavity of the embedded part.

Further, in one embodiment, a first convex clamping ring is arranged on the inner wall of the accommodating cavity, and a first concave clamping groove matched with the first convex clamping ring is arranged on the outer side of the first magnetic piece.

Further, in one embodiment, a second convex clamping ring is arranged on the inner wall of the port, and a second concave clamping groove matched with the second convex clamping ring is arranged on the outer side of the second magnetic part.

Further, in one embodiment, the tail end of the first magnetic member extends out of the bottom surface of the accommodating cavity.

Further, in one embodiment, the top end of the second magnetic member is retracted lower than the top surface of the port, so that a groove is formed at the top end of the port, and the groove matches the part of the first magnetic member extending out of the accommodating cavity.

Further, in one embodiment, the terminal further includes a terminal block, the connection cord is connected to the port through the terminal block, and the terminal block is buried in the tail end of the port.

Further, in one embodiment, the needle tube and the port are provided with a gold plating layer on the surface, and the thickness of the gold plating layer is more than 0.5 um.

The needle tube tail groove structure is designed, so that the magnet is convenient to assemble, and the foolproof clamping groove (clamping ring) structure is designed in the needle tube tail groove structure to prevent the magnet from falling off. The magnetic attraction structure is different from the traditional POGO PIN press type contact, and has the advantages that the press frequency limitation (press service life) is avoided, the contact area is larger, and the conduction is better; can realize POGO PIN magnetism and inhale butt joint mode, reduce the friction. The magnetic attraction structure of the utility model enables the needle tube and the wire end to be magnetically attracted and electrically connected through the magnetic attraction without welding, thereby simplifying the assembly, reducing the manufacturing cost and being easy to replace or maintain.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a perspective view of an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an embodiment of the present invention;

FIG. 4 is an assembly view of an embodiment of the present invention;

FIG. 5 is a schematic diagram illustrating the use of an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a socket port according to an embodiment of the present invention.

Description of the main part symbols in the drawings:

the needle comprises a needle shaft 11, an embedded part 12, a connecting wire 15, an elastic part 17, a needle tube 21, a top part 211, a bottom part 212, a tube mouth crimping stop ring 22, a partition plate 23, a first convex clamping ring 24, a containing cavity 25, a wire end 28, a first magnetic part 31, a first concave clamping groove 32, a second magnetic part 34, a second concave clamping groove 35, a port 37, a second convex clamping ring 38 and a wiring board 39.

Detailed Description

The features and technical means of the present invention, and the specific objects and functions achieved thereby, are further understood by the following detailed description of the present invention taken in conjunction with the accompanying drawings.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "front," "back," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Referring to fig. 1 to 6, the present embodiment provides a magnetic-type terminal assembly, which includes a needle shaft 11 and a needle tube 21, wherein the needle shaft 11 is embedded in the needle tube 21, an embedding portion 12 that widens outward is disposed at a lower portion of the needle shaft 11, and the embedding portion 12 of the needle shaft 11 is embedded in the needle tube 21; the top end of the needle tube 21 is provided with a mouth-crimping stop ring 22 which narrows inwards, and the top end of the embedded part 12 is abutted against the lower bottom of the mouth-crimping stop ring 22.

The needle tube 21 comprises a top part 211, a bottom part 212 and a partition 23 between the top part 211 and the bottom part 212, wherein the top part 211 is provided with a containing space, the bottom part 212 is provided with a containing cavity 25, and the containing space of the top part 211 is internally provided with an elastic piece 17.

In one embodiment, the middle of the needle tube 21 is provided with an outward-widening partition 23, the top surface of the accommodating space of the partition 23 facing the top 211 is provided with a conical cavity, and the bottom end of the elastic member 17 abuts against the top surface of the partition 23. The bottom end of the insert part 12 is concavely provided with a conical and/or cylindrical inner cavity, and the top end of the elastic element 17 abuts against the inner cavity of the insert part 12.

An elastic piece 17 is arranged in the needle tube 21, the top end of the elastic piece 17 props against the concave cavity of the embedding part 12, and the bottom end of the elastic piece 17 props against the top surface of the conical cavity of the partition plate 23; the embedded part 12, the needle tube 21 and the partition 23 form a movable accommodating space of the elastic element 17. In some embodiments, the resilient member 17 is a compression spring.

The tail part of the needle tube 21 is provided with an accommodating cavity 25 (groove), and the accommodating cavity 25 is arranged below the partition plate 23; the terminal assembly further comprises a first magnetic piece 31, the first magnetic piece 31 is embedded in the accommodating cavity 25, a first convex snap ring 24 is arranged on the inner wall of the accommodating cavity 25, a first concave snap groove 32 (foolproof effect) matched with the first convex snap ring 24 is arranged on the outer side of the first magnetic piece 31, and the tail end of the first magnetic piece 31 extends out of the bottom surface of the accommodating cavity 25.

In one embodiment, the terminal assembly further comprises a wire end 28 and a second magnetic member 34, the wire end 28 is a magnetically attachable assembly, the wire end 28 magnetically attaches to the bottom 212 of the connecting needle tube 21, the wire end 28 comprises a port 37 and the connecting wire 15, and the second magnetic member 34 is embedded in the port 37; a second convex snap ring 38 is arranged on the inner wall of the port 37, and a second concave snap groove 35 (fool-proof function) matched with the second convex snap ring 38 is arranged on the outer side of the second magnetic part 34. The wire end 28 and the needle tube 21 are electrically connected by magnetic attraction contact between the first magnetic member 31 and the second magnetic member 34.

In one embodiment, the top end of the second magnetic member 34 is retracted below the top surface of the port 37, so that the top end of the port 37 forms a recess, the recess of the port 37 matches the portion of the first magnetic member 31 extending out of the accommodating cavity 25, and the recess at the top end of the port 37 can accommodate the protruding tail end of the first magnetic member 31 when connected, so that the needle tube 21 and the port 37 form a tight connection, and are waterproof and dustproof.

The connection line 15 is arranged at the tail part of the port 37. Further, in one embodiment, the patch cord 15 (core) is connected to the port 37 through a patch panel 39, the patch panel 39 being buried in the tail end of the port 37.

The needle tube 21 is drilled at the tail to form a containing cavity 25, and a first magnetic piece 31 is assembled. The terminal assembly of the utility model is an elastic terminal assembly (POGO PIN assembly), and the tail part (bottom part 212) of the needle tube 21 is made into a magnet-to-magnet connection mode by using a magnet assembling mode.

In some embodiments, the surfaces of the needle cannula 21 and the port 37 are provided with a gold plating, the thickness of the gold plating being greater than 0.5 um; in some embodiments, the gold-plating layer has a thickness of 0.75 um. The gold plating layer on the surface of the needle tube 21 and the port 37 has thicker thickness, and the needle tube 21 and the port 37 (plug control end) use the gold plating method for the advantages that: the high current is conducted by 5-10A better, the contact impedance is reduced, and the contact impedance can reach below 5 milliohms.

In some embodiments, the coating gauge of the needle cannula 21 is, Ni: 1.25um + Au: 0.75 um;

in some embodiments, the plating specification for port 37 is, Ni: 1.25um + Au: 0.75 um. According to the utility model, a needle shaft 11 and a needle tube 21 are turned by a metal raw material copper bar, after cleaning and electroplating, an elastic part 17 is formed by a spring wire, the elastic part 17 is combined (naturally falls) into the needle tube 21, then the needle shaft 11 is combined into the needle tube 21, the needle shaft 11, the needle tube 21 and the elastic part 17 are integrated through a riveting press machine, then a magnetized first magnetic part 31 is assembled into a groove (part of the first magnetic part 31 is exposed) of a tail accommodating cavity 25 of the needle tube 21, a POGO PIN with magnetic attraction property is formed, and the POGO PIN is connected with a port 37 with magnetism at the same end of a connecting wire 15.

The port 37 has a certain depth when the second magnetic member 34 is assembled, and the top end of the second magnetic member 34 is retracted lower than the top surface of the port 37, so that a groove is formed at the top end of the port 37, and the groove (fool-proof purpose) of the port 37 is matched with the part of the first magnetic member 31 extending out of the accommodating cavity 25, thereby preventing dislocation (fool-proof) when the other end is butted.

In some embodiments, the first magnetic member 31 and the second magnetic member 34 are magnets, and the polarity of the end of the first magnetic member 31 away from the partition 23 is opposite to the polarity of the end of the second magnetic member 34 away from the connection line 39, so that the first magnetic member 31 and the second magnetic member 34 can generate a magnetic attraction effect when approaching each other, so that the tail portion (bottom 212) of the needle tube 21 and the line end 28 are magnetically connected.

The specific position and size can be determined according to the actual product requirement, and the embodiment is not limited.

The foregoing examples, which are indicative of but a few of the preferred embodiments of the present invention, are presented in some detail for purposes of illustration and description, it being understood that the utility model is not limited to the forms disclosed herein, and is not to be construed as limited to the exclusion of other examples, but rather is capable of use in various other combinations, modifications, and environments and is capable of modification within the scope of the inventive concept as described herein, either by the above teachings or by the skill or knowledge of the relevant art, and is therefore not to be construed as limiting the scope of the utility model. It should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the spirit and scope of the present invention, and those skilled in the art can make modifications and variations without departing from the spirit and scope of the present invention, which falls within the protection scope of the appended claims. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A magnetically-attractable terminal assembly, comprising: a needle shaft (11) and a needle tube (21), wherein the needle shaft (11) is embedded and clamped in the needle tube (21); the needle tube (21) is characterized by comprising a top part (211), a bottom part (212) and a partition plate (23) positioned between the top part (211) and the bottom part (212), wherein the top part (211) is provided with an accommodating space, the bottom part (212) is provided with an accommodating cavity (25), and an elastic part (17) is arranged in the accommodating space of the top part (211);

the terminal assembly further comprises a wire end (28), a first magnetic piece (31) and a second magnetic piece (34), the first magnetic piece (31) is embedded in the accommodating cavity (25), the wire end (28) comprises a port (37) and a connecting wire (15), the second magnetic piece (34) is embedded in the port (37), the connecting wire (15) is arranged at the tail of the port (37), and the wire end (28) and the needle tube (21) are in magnetic contact with each other through the first magnetic piece (31) and the second magnetic piece (34) and are electrically connected.

2. A magnetic-type terminal assembly according to claim 1, characterized in that the bottom of the needle shaft (11) is provided with an outwardly widened insertion portion (12), the insertion portion (12) of the needle shaft (11) is inserted into the receiving space of the top portion (211), the top end of the top portion (211) is provided with an inwardly narrowed nozzle crimping stop ring (22), the top end of the insertion portion (12) abuts against the lower bottom of the nozzle crimping stop ring (22), and the elastic member (17) abuts against the bottom end of the insertion portion (12).

3. A terminal assembly according to claim 2, wherein the partition (23) is provided with a conical cavity towards the top surface of the receiving space of the top part (211), and the bottom end of the elastic element (17) abuts against the top surface of the partition (23).

4. A magnetic-type terminal assembly according to claim 3, characterized in that the bottom end of the insertion portion (12) is recessed with a tapered and/or cylindrical cavity, and the top end of the elastic member (17) abuts against the cavity of the insertion portion (12).

5. A magnetic-type terminal assembly according to claim 1, characterized in that a first convex snap ring (24) is arranged on the inner wall of the accommodating cavity (25), and a first concave snap groove (32) matched with the first convex snap ring (24) is arranged on the outer side of the first magnetic piece (31).

6. A magnetic terminal assembly according to claim 1, wherein the inner wall of the port (37) is provided with a second male snap ring (38), and the outer side of the second magnetic member (34) is provided with a second female snap groove (35) matching with the second male snap ring (38).

7. A terminal assembly according to claim 1, wherein the tail end of the first magnetic member (31) extends out of the bottom surface of the receiving cavity (25).

8. A magnetic-type terminal assembly according to claim 7, characterized in that the top end of said second magnetic member (34) is recessed below the top surface of said port (37) so that the top end of said port (37) forms a recess matching the portion of said first magnetic member (31) extending out of said receiving cavity (25).

9. A magnetic terminal assembly according to claim 1, characterised in that the terminal (28) further comprises a terminal plate (39), the connecting wire (15) being connected to the port (37) through the terminal plate (39), the terminal plate (39) being buried in the rear end of the port (37).

10. A magnetic-type terminal assembly according to claim 1, characterized in that gold plating is provided on the surface of the needle tube (21) and the port (37), and the thickness of the gold plating is greater than 0.5 um.