CN217936049U

CN217936049U - Small-sized electric connector

Info

Publication number: CN217936049U
Application number: CN202221290795.0U
Authority: CN
Inventors: 黎飞
Original assignee: Shenzhen Qinben Electronic Co ltd
Current assignee: Shenzhen Qinben Electronic Co ltd
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2022-11-29
Anticipated expiration: 2032-05-25

Abstract

The utility model discloses a small-sized electric connector, which comprises a circuit board, a thermistor, a plastic protection piece and a lead, wherein the circuit board is provided with a welding wire disc; the thermistor is arranged on the circuit board; the plastic protection piece is arranged on the circuit board and surrounds the periphery of the thermistor to protect the thermistor; the wire is connected with the bonding wire pad, and the number of the wires is at least two. This application is through setting up the plastic protection piece on thermistor to protect thermistor, for prior art's glass fiber board, the plastic protection piece of this application can be made as required arbitrary with the shape of thermistor looks adaptation, and under the prerequisite of effectively protecting thermistor, can reduce the size of plastic protection piece as far as, thereby reduce electric connector's size, in order to obtain the small-size electric connector of this application, satisfy the demand of market to small-size electric connector.

Description

Small-sized electric connector

Technical Field

The utility model relates to an electric connector technical field, in particular to small-size electric connector.

Background

An electrical connector is a conductive device that bridges two conductors in a loop so that current or signals can flow from one conductor to the other, and as a component for completing an electrical connection between circuits or electronic machines, miniaturization has always been the subject of technical development. The existing electric connector adopts a glass fiber board as a protection piece of a thermistor, the glass fiber board can only be made into a block shape under limited cost, the size of the glass fiber board is difficult to manage and control, and the requirement of the market on the small-sized electric connector cannot be met.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a small electrical connector that can meet market demands and be reduced in size.

A miniature electrical connector comprising:

a circuit board having a wire bonding pad;

the thermistor is arranged on the circuit board;

the plastic protection piece is arranged on the circuit board and surrounds the periphery of the thermistor so as to protect the thermistor; and

and the number of the conducting wires is at least two.

In one embodiment, the plastic protector is formed by injection molding.

In one embodiment, the plastic protector comprises a plastic protector body and a plastic column, the plastic protector body is arranged around the periphery of the thermistor, the plastic column is arranged on the plastic protector body, and the plastic column is used for positioning the plastic protector body relative to the circuit board.

In one embodiment, the number of the plastic posts is multiple, and the multiple plastic posts are arranged on the plastic protector main body at intervals.

In one embodiment, the circuit board has a plurality of positioning holes, the plastic posts are disposed in the positioning holes to position the plastic protection member body relative to the circuit board, and the plurality of positioning holes correspond to the plurality of positioning holes one to one.

In one embodiment, the small-sized electrical connector further comprises an ultraviolet light curing adhesive, the plastic protection member is provided with a through hole, and the ultraviolet light curing adhesive is used for filling the through hole to cover the thermistor so as to realize the connection between the plastic protection member and the thermistor.

In one embodiment, the small-sized electrical connector further comprises a protection main body, the protection main body is sleeved on the circuit board, the thermistor and the plastic protection member are both located in the protection main body, one end of the wire is located in the protection main body, and the other end of the wire extends out of the protection main body.

In one embodiment, the protection body is made of plastic.

This application is through setting up the plastic protection piece on thermistor, in order to protect thermistor, for prior art's glass fiber board, can only make the cubic under the finite cost, make glass fiber board and thermistor can not perfect match, thereby make electric connector's size can not reduce, and the plastic protection piece of this application can be made as required with the shape of thermistor looks adaptation, and under the prerequisite of effectively protecting thermistor, can reduce the size of plastic protection piece as far as, thereby reduce electric connector's size, in order to obtain the small-size electric connector of this application, satisfy the demand of market to small-size electric connector.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic diagram of a portion of a miniature electrical connector in one embodiment;

FIG. 2 is a schematic view of a plastic protector of the miniature electrical connector according to an embodiment;

FIG. 3 is a schematic diagram of a circuit board of the miniature electrical connector according to an embodiment;

FIG. 4 is a schematic diagram of a small electrical connector according to an embodiment;

fig. 5 is a schematic structural diagram of another view of the miniature electrical connector according to an embodiment.

1. A circuit board; 11. welding a wire coil; 12. positioning holes; 2. a thermistor; 3. a plastic protector; 31. a plastic protector body; 32. a plastic column; 33. a through hole; 4. a wire; 5. the main body is protected.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

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 efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, "and/or" in the whole text includes three schemes, taking a and/or B as an example, including a technical scheme, and a technical scheme that a and B meet simultaneously; in addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1, the present application provides a small-sized electrical connector including a circuit board 1, a thermistor 2, a plastic protector 3, and a wire 4, the circuit board 1 having a wire bonding pad 11; the thermistor 2 is arranged on the circuit board 1; the plastic protection piece 3 is arranged on the circuit board 1 and surrounds the periphery of the thermistor 2 to protect the thermistor 2; the wires 4 are connected to the bonding pads 11, and the number of the wires 4 is at least two.

This application is through setting up plastic protection piece 3 on thermistor 2, in order to protect thermistor 2, for prior art's glass fiber board, can only make the cubic under the finite cost, make glass fiber board and thermistor can not perfect match, thereby make electric connector's size can not reduce, and this application's plastic protection piece 3 can make as required arbitrary with the shape of thermistor 2 looks adaptation, and under the prerequisite of effectively protecting thermistor 2, can reduce plastic protection piece 3's size as far as, thereby reduce electric connector's size, in order to obtain the small-size electric connector of this application, satisfy the demand of market to small-size electric connector.

Specifically, the Circuit Board is a PCB (Printed Circuit Board), which is called a Printed Circuit Board, and by using the PCB, the conductive Circuit of the PCB can replace complex wiring, which not only can simplify the assembly work of the product, but also can further reduce the size of the small-sized electrical connector of the present application.

In the present embodiment, the number of the wires 4 is two, wherein one wire 4 is used for connecting with one conductor, and the other wire 4 is used for connecting with the other conductor, so as to realize the circulation of current and signals between the two conductors.

The plastic protection member 3 is formed by injection molding. Specifically, the plastic protection member 3 is integrally formed by injection molding in a precision mold, so that no gap is formed inside the plastic protection member 3, and the size of the plastic protection member 3 can be reduced to a great extent. Meanwhile, the size of the plastic protection piece 3 can be ensured within the tolerance range of 0.05 mm. In addition, due to the high precision and plasticity of injection molding, the produced plastic protection piece 3 can be accurately matched with the circuit board 1, and the thermistor 2 is better protected. Meanwhile, the precision of the plastic protection piece 3 produced by the precision die is higher, so that the plastic protection piece can be directly loaded by the vibrating disc, the automatic production of the small-sized electric connector is realized, the production efficiency is improved, and the production cost is saved.

Referring to fig. 1 and 2, the plastic protector 3 includes a plastic protector body 31 and a plastic post 32, the plastic protector body 31 is disposed around the thermistor 2, the plastic post 32 is disposed on the plastic protector body 31, and the plastic post 32 is used for positioning the plastic protector body 31 relative to the circuit board 1.

Specifically, the cross-sectional shape of the plastic protector body 31 is rectangular, and the plastic posts 32 are disposed at corners of the plastic protector body 31.

The number of the plastic posts 32 is plural, and the plurality of plastic posts 32 are disposed on the plastic protector body 31 at intervals.

In the present embodiment, the number of the plastic posts 32 is four, and four plastic posts 32 are disposed at four corners of the plastic protection member 3 at intervals.

Referring to fig. 3, the circuit board 1 has a plurality of positioning holes 12, the plastic posts 32 are disposed in the positioning holes 12 to position the plastic protection member body 31 relative to the circuit board 1, the plurality of positioning holes 12 are provided, and the plurality of plastic posts 32 correspond to the plurality of positioning holes 12 one by one. In this embodiment, the number of the positioning holes 12 and the number of the plastic posts 32 are four.

Specifically, the plastic posts 32 and the positioning holes 12 are in interference fit to achieve tight connection between the plastic protection member 3 and the circuit board 1.

Referring to fig. 1 and 2, the small-sized electrical connector further includes an ultraviolet light curing adhesive, the plastic protection member 3 is provided with a through hole 33, and the ultraviolet light curing adhesive is used for filling the through hole 33 to cover the thermistor 2, so as to realize the connection between the plastic protection member 3 and the thermistor 2.

Specifically, the through hole 33 is disposed on the plastic protection member main body 31, in this embodiment, the plastic protection member main body 31 is a rectangular parallelepiped structure, the through hole 33 is disposed in the middle of the rectangular parallelepiped structure, the uv curable adhesive is filled in the through hole 33, so as to coat the uv curable adhesive with respect to the thermistor 2, and further protect the thermistor 2, furthermore, the plastic protection member 3 is tightly connected to the circuit board 1, and there is no gap between the bottom of the plastic protection member 3 and the circuit board 1, so that when the uv curable adhesive is filled in the through hole 33, the uv curable adhesive can be prevented from flowing out of the through hole 33 and flowing to the area where the wire bonding tray 11 of the circuit board 1 is located, thereby shielding the wire bonding tray 11 of the circuit board 1, which results in unstable welding of the lead 4, and effectively ensures the stability of the small-sized electrical connector of the present application.

Referring to fig. 1, 4 and 5, the small electrical connector further includes a protection body 5, the protection body 5 is sleeved on the circuit board 1, the thermistor 2 and the plastic protection member 3 are both located in the protection body 5, one end of the wire 4 is located in the protection body 5, and the other end of the wire 4 extends out of the protection body 5.

Specifically, the protection main body 5 can protect the circuit board 1 and the thermistor 2 inside, and can also avoid the situation that the welding part of the lead 4 and the welding disc 11 is cracked or even separated from abnormality in the use process, so that the stability and the reliability of the small-sized electric connector are further improved.

The protection main body 5 is made of plastic.

Specifically, the protection main body 5 is injected in the mold and integrally formed on the periphery of the circuit board 1, so as to reduce the gap between the protection main body 5 and the circuit board 1, and further reduce the size of the small-sized electrical connector of the present application.

Specifically, the ultraviolet curing adhesive is filled in the through hole 33 to coat the ultraviolet curing adhesive relative to the thermistor 2, and the damage to the thermistor 2 caused by impact force generated during injection molding can be avoided when the protection main body 5 is injection molded on the periphery of the circuit board 1,

the above is only the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all of which are in the utility model discloses a conceive, utilize the equivalent structure transform that the content of the specification and the attached drawings did, or directly/indirectly use all to include in other relevant technical fields the patent protection scope of the present invention.

Claims

1. A miniature electrical connector, comprising:

a circuit board having a wire bonding pad;

the thermistor is arranged on the circuit board;

the leads are connected with the bonding wire pads, and the number of the leads is at least two;

the plastic protection piece is formed by injection molding;

the small-sized electric connector further comprises ultraviolet curing glue, the plastic protection piece is provided with a through hole, and the ultraviolet curing glue is used for filling the through hole to coat the thermistor so as to realize connection between the plastic protection piece and the thermistor.

2. The miniature electrical connector of claim 1, wherein said plastic protector comprises a plastic protector body and a plastic post, said plastic protector body is disposed around said thermistor, said plastic post is disposed on said plastic protector body, said plastic post is used for positioning said plastic protector body relative to said circuit board.

3. The miniature electrical connector of claim 2, wherein the number of said plastic posts is plural, and a plurality of plastic posts are disposed on said plastic protector body at intervals.

4. The electrical small connector as claimed in claim 3, wherein the circuit board has a plurality of positioning holes, the plastic posts are disposed in the positioning holes to position the plastic protector body relative to the circuit board, the plurality of positioning holes are provided, and the plurality of plastic posts are in one-to-one correspondence with the plurality of positioning holes.

5. The miniature electrical connector of claim 1, further comprising a protection body, wherein said protection body is disposed on said circuit board, said thermistor and said plastic protector are disposed in said protection body, one end of said wire is disposed in said protection body, and the other end of said wire extends out of said protection body.

6. The miniature electrical connector of claim 5, wherein said protective body is made of plastic.