CN212392400U

CN212392400U - Terminal of electric connector

Info

Publication number: CN212392400U
Application number: CN202021321889.0U
Authority: CN
Inventors: 邱鹏飞; 张辉; 孙丹丹; 赖剑平; 邓苏明; 王志信
Original assignee: Hulian Electronic Nanjing Co ltd
Current assignee: Hulian Electronic Nanjing Co ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-01-22
Anticipated expiration: 2030-07-07

Abstract

The application relates to an electric connector terminal, which comprises a terminal body, a contact part and a crimping part, wherein the contact part is arranged at the head end of the terminal body, the crimping part is arranged at the tail end of the terminal body, the contact part comprises a U-shaped structure extending out of the head end of the terminal body, and the U-shaped structure comprises a top plate, a bottom plate and a connecting plate which is connected with one side of the top plate and one side of the bottom plate; the contact portion further includes an intermediate plate extending from within the terminal body toward the head end and disposed between and surrounded by the top and bottom plates. The electric connector terminal according to the embodiment of the application has the contact part with the three-layer stacking structure, and can simultaneously meet the structural strength of the contact part and the structural strength of the transitional connection area.

Description

Terminal of electric connector

Technical Field

The present application relates to electrical connectors, and more particularly, to an electrical connector terminal.

Background

The electric connector terminal is a metal component used for achieving electric connection between the male connector and the female connector of the electric connector, one end of the terminal is a contact part used for being electrically connected with a counterpart, and the other end of the terminal is fixedly connected with a conducting wire for transmitting current or signals.

Fig. 1 shows a structure of a conventional electrical connector terminal 1, in which the electrical connector terminal 1 extends from one end of a terminal body 11 to form a contact portion 12 for being clamped by a male terminal, and has a width and a thickness of a predetermined specification (e.g., 0.64mm by 0.64 mm). The thickness of the base material of the electric connector terminal 1 is 0.25mm, so that the contact portion 12 has been formed by folding two sides of the base material in the width direction inward, i.e., by stacking and bending, to satisfy the necessary thickness.

In fact, the thinner the terminal base material plate is, the better the necessary strength is secured. Therefore, in the conventional electrical connector terminal 2 shown in fig. 2, the contact portion 22 extending from one end of the terminal body 21 is formed by three-layer stacking bending in the width direction of the base material, so that the thickness of the base material becomes 0.2mm, thereby achieving weight reduction and cost reduction, and satisfying the thickness requirement specified for the contact portion, and having strength capable of maintaining a certain quality. However, the forming process of the three-layer stacked structure is complicated, and the transitional connection region (the region shown by the dotted-dashed circle in fig. 2) between the contact portion 22 and the terminal body 21 is excessively twisted due to the bending forming of the three-layer stacked structure, so that the structural strength of the connection region is weakened, and the problem of fracture is easily caused.

Disclosure of Invention

The technical problem to be solved by the present application is to provide an electrical connector terminal capable of satisfying both the structural strength of the contact portion and the structural strength of the transition connection region, aiming at the above-mentioned defects of the prior art.

The technical scheme adopted by the application for solving the technical problem is as follows: the electric connector terminal comprises a terminal body, a contact part and a crimping part, wherein the contact part is arranged at the head end of the terminal body, the crimping part is arranged at the tail end of the terminal body, the contact part comprises a U-shaped structure extending out of the head end of the terminal body, and the U-shaped structure comprises a top plate, a bottom plate and a connecting plate which is connected with one side of the top plate and one side of the bottom plate; the contact portion further includes an intermediate plate extending from within the terminal body toward the head end and disposed between and surrounded by the top and bottom plates.

In one embodiment of the electrical connector terminal according to the present application, the terminal body includes a square tube body having an extension portion bent laterally inward from one side edge to extend toward the other side edge of the tube body, and the middle plate is bent and formed below the extension portion and extends toward the head end of the terminal body.

In one embodiment of the electrical connector terminal according to the present application, the tail portion of the tube has a first engaging portion and a second engaging portion bent and extended from the side edges laterally inward, and the first engaging portion and the second engaging portion are stacked and engaged with each other.

According to an embodiment of the terminal of the electrical connector, the first engaging portion and the second engaging portion are respectively provided with a first engaging hole and a second engaging hole, the end of the first engaging portion vertically extends downwards to form a first protruding piece to be inserted into the second engaging hole, and the end of the second engaging portion vertically extends upwards to form a second protruding piece to be inserted into the first engaging hole, so that the first engaging portion and the second engaging portion are engaged with each other.

In one embodiment of the electrical connector terminal according to the present application, the head end of the tube body forms a tapered transition connection portion, and a U-shaped structure of the contact portion extends from the head end of the transition connection portion.

In an embodiment of the electrical connector terminal according to the present application, a side edge of one side of the head portion of the tube body is further provided with a limiting portion which is bent laterally inward to extend toward a side edge of the other side of the tube body, and a head end of the limiting portion further extends obliquely to form a limiting piece.

In an embodiment of the electrical connector terminal according to the present application, the crimping portion includes a receiving groove formed by extending from the tail end of the terminal body and used for placing a wire, and a first pair of conductive press-fit pieces and a second pair of press-fit pieces are respectively formed by extending from two sides of the receiving groove and used for press-fitting a wire core of the wire.

The electric connector terminal has the following beneficial effects: according to the electric connector terminal of the embodiment of the application, the middle plate extending towards the head end is formed by bending the terminal body inwards, the middle plate is arranged between the top plate and the bottom plate of the U-shaped structure formed by folding the head end of the terminal body in half, and the top plate and the bottom plate are wrapped, so that the contact part of the three-layer stacking structure is formed, the thickness requirement and the structural strength requirement of the contact part can be met through a thin plate, and meanwhile, the transition connecting part between the terminal body and the contact part is simple in forming process and high in structural strength.

Drawings

The present application will be further described with reference to the accompanying drawings and examples, in which:

fig. 1 is a schematic structural diagram of a terminal of an electrical connector in the prior art;

FIG. 2 is a schematic diagram of another prior art electrical connection terminal;

FIG. 3 is a schematic diagram of a structure of a terminal of an electrical connector according to one embodiment of the present application;

fig. 4 is a cross-sectional view of the structure of the terminal of the electrical connector shown in fig. 3;

fig. 5 is a schematic view of an expanded structure of the terminal of the electrical connector shown in fig. 3.

Description of reference numerals:

terminal body 11 of electric connector terminal 1

Contact 12 electric connector terminal 2

Contact part 22 of terminal main body 21

Terminal body 31 of electric connector terminal 3

Extension 312 of tube 311

Connecting portion 3121 first engaging portion 313

First engaging hole 3131 and first protruding piece 3132

Second engaging hole 3141 of the second engaging portion 314

Second protrusion piece 3142 stopper 315

The position-limiting surface 3161 of the position-limiting sheet 316

Transition joint 317 contact 32

Connecting plate 321 top plate 322

Bottom plate 323 intermediate plate 324

Pressing part 33 accommodating groove 331

First pair of

conductive bonding pads

333a, 333b and second pair of

bonding pads

332a, 332b

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. Also, the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Fig. 3 shows a schematic structural view of an electrical connector terminal 3 according to an embodiment of the present application. As shown in fig. 3, the electrical connector terminal 3 includes a terminal body 31, a contact portion 32 disposed at a head end of the terminal body 31, and a press-connection portion 33 disposed at a tail end of the terminal body 31, wherein the contact portion 32 is used for being inserted into a counterpart to achieve electrical connection, and the press-connection portion 33 is used for fixing a wire for transmitting current or signals.

Specifically, as shown in fig. 3 to 5, the terminal body 31 has a substantially square pipe body 311 formed by bending a base material. The middle portion of the tube body 311 has an extension 312 bent laterally inward from one side edge to extend toward the other side edge of the tube body 311. The tail of the tube 311 has a first engaging portion 313 and a second engaging portion 314 bent and extended from the lateral edges of the two sides, respectively, and the first engaging portion 313 and the second engaging portion 314 are stacked up and down and respectively provided with a first engaging hole 3131 and a second engaging hole 3141. The first protruding piece 3132 is disposed at the end of the first engaging portion 313 and extends vertically downward to be inserted into the second engaging hole 3142, and the second protruding piece 3142 is disposed at the end of the second engaging portion 314 and extends vertically upward to be inserted into the first engaging hole 3131, so that the first engaging portion 313 and the second engaging portion 314 are engaged with each other, and the terminal body 31 is not easily deformed during use. The head end of the pipe body 311 is formed with a transition connection portion 317 having a generally quadrangular pyramid shape that is tapered, and the contact portion 32 is formed at the head end of the transition connection portion 317. Referring to fig. 3 and 4, the contact portion 32 includes a top plate 322, a bottom plate 323, and a connecting plate 321 connecting the top plate 322 and the bottom plate 323 at one side, and the U-shaped structure formed by the top plate 322, the connecting plate 321, and the bottom plate 323 can be formed by folding and bending two sides of a plate extending from the transition connecting portion 317 inward. Further, from the lower end of the extension 312 in the tube 311, an intermediate plate 324 extends to the head end just inside the U-shaped structure, and is wrapped by the top plate 322 and the bottom plate 323, thereby forming the contact part 32 of the three-layer stack. As shown in fig. 4 and 5, the extending portion 312 extending from one side edge of the tube 311 to the other side edge of the tube 311 is further bent vertically downward to form a connecting portion 3121 extending into the tube 311, and further bent horizontally to form the middle plate 324 extending between the top plate 322 and the bottom plate 323, thereby forming a three-layer stacked structure. Thus, the thickness of the plate is 0.2mm, which can meet the thickness requirement specified by the contact part 32, and the transition connection part 317 between the contact part 32 and the terminal body 31 has simple forming process and high structural strength, and simultaneously meets the structural strength of the contact part and the structural strength of the transition connection area.

As further shown in fig. 3 and 4, a side edge of one side of the head portion of the tube body 311 is further provided with a limiting portion 315 which is bent laterally and inwardly to extend toward the side edge of the other side of the tube body 311, a head end of the limiting portion 315 further extends obliquely above the transition connection portion 317 to form a limiting piece 316, and the limiting piece 316 is slightly bent and forms a limiting surface 3161 at a terminal end thereof, so as to cooperate with an opponent structure for positioning when the connector terminal 3 is installed.

As shown in fig. 3 and 5, the crimping portion 33 at the tail end of the terminal body 31 includes a receiving groove 331 formed by extending from the tail end of the terminal body 31 for receiving a wire, a first pair of conductive press-

fit pieces

333a and 333b are respectively formed by extending from two sides of the receiving groove 331, and a second pair of press-

fit pieces

332a and 332b are also respectively formed by extending from two sides of the tail end of the receiving groove 331. After a conducting wire for transmitting current or signals is placed in the accommodating groove 331, the second pair of press-

fit pieces

332a and 332b are press-fit on the conducting wire, so that the conducting wire is fixedly connected to the tail portion of the electric connector terminal 3, and then the first pair of conducting wire press-

fit pieces

333a and 333b are press-fit on the core of the conducting wire, so that the electric connection between the electric connector terminal 3 and the conducting wire can be realized.

According to the electric connector terminal 3 of the above embodiment of the present application, the middle plate 324 extending to the head end is formed by bending from the inside of the terminal body 31, and is disposed between the top plate 322 and the bottom plate 323 of the U-shaped structure formed by folding the head end of the terminal body 31 in half, and is wrapped by the top plate 322 and the bottom plate 323, so as to form the contact portion 32 of the three-layer stacked structure, which not only can satisfy the thickness requirement and the structural strength requirement of the contact portion through a thinner plate, but also the transition connection portion 317 between the terminal body 31 and the contact portion 32 has a simple forming process and a high structural strength.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An electric connector terminal comprises a terminal body, a contact part arranged at the head end of the terminal body and a crimping part arranged at the tail end of the terminal body, and is characterized in that the contact part comprises a U-shaped structure extending out of the head end of the terminal body, and the U-shaped structure comprises a top plate, a bottom plate and a connecting plate for connecting one side of the top plate and one side of the bottom plate; the contact portion further includes an intermediate plate extending from within the terminal body toward the head end and disposed between and surrounded by the top and bottom plates.

2. The electrical connector terminal as claimed in claim 1, wherein the terminal body comprises a square tube having an extension bent laterally inwardly from one side edge to extend toward the other side edge of the tube, and the intermediate plate is bent and formed below the extension and extends toward the head end of the terminal body.

3. The electrical connector terminal as claimed in claim 2, wherein the tail portion of the tube has a first engaging portion and a second engaging portion bent and extended laterally inward from the side edges, respectively, and the first engaging portion and the second engaging portion are stacked and engaged with each other.

4. The electrical connector terminal as claimed in claim 3, wherein the first engaging portion and the second engaging portion are respectively provided with a first engaging hole and a second engaging hole, the end of the first engaging portion vertically extends downward to form a first protruding piece to be inserted into the second engaging hole, and the end of the second engaging portion vertically extends upward to form a second protruding piece to be inserted into the first engaging hole, so as to achieve the engagement between the first engaging portion and the second engaging portion.

5. The electrical connector terminal as recited in claim 2, wherein the head end of the body forms a tapered transition connection portion and extends from the head end of the transition connection portion out of the U-shaped configuration of the contact portion.

6. The terminal of claim 2, wherein the side edge of one side of the head portion of the tube body is further provided with a limiting portion bent laterally inward to extend toward the side edge of the other side of the tube body, and the head end of the limiting portion further extends obliquely to form a limiting piece.

7. The terminal of claim 1, wherein the crimping portion includes a receiving groove extending from the tail end of the terminal body for receiving the wire, and a first pair of conductive press-fit pieces extending from two sides of the receiving groove for press-fitting to the wire core and a second pair of press-fit pieces extending from two sides of the receiving groove for press-fitting to the wire.