CN113054460A

CN113054460A - Conductive terminal structure

Info

Publication number: CN113054460A
Application number: CN201911372322.8A
Authority: CN
Inventors: 邬彬; 彭君兰; 毕伟; 陈伟华
Original assignee: Shenzhen Electric Connector Technology Co Ltd
Current assignee: Shenzhen Electric Connector Technology Co Ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2021-06-29

Abstract

The invention discloses a conductive terminal structure, which comprises a first terminal and at least one second terminal electrically connected with the first terminal; wherein the first terminal includes: a first body; a first elastic upper arm; a first lower resilient arm, the first upper resilient arm and the first lower resilient arm each having a first contact; the second terminal includes: the second main body is fixedly connected with the first main body; a second elastic upper arm; a second resilient lower arm, the second resilient upper arm and the second resilient lower arm each being provided with a second contact portion. Compared with the prior art, the conductive terminal can be applied to the environment of quick charging, and the abrasion of the contact part of the conductive terminal cannot be accelerated.

Description

Conductive terminal structure

Technical Field

The invention relates to the technical field of electric connection, in particular to a conductive terminal structure applied to a USB Type-C connector.

Background

The USB connector includes a male socket and a female socket, the female socket is installed in an electronic device such as a mobile phone, and the male socket is inserted into the female socket from the outside of the electronic device, so that the electronic device performs data transmission or power transmission with the external device through the USB connector. Nowadays, the charging current of the mobile phone is increasing, and when the internal impedance of the USB connector (male or female) is increased, a large amount of heat is generated during the charging process (the relationship between heat and current is Q2R t, where I is current, R is impedance, and t is time). When the amount of heat generated is greater than the amount of heat dissipated, the temperature inside the USB connector may increase.

Prior art 1(CN209298421U) discloses a connector, including metal casing, insulating shell, shielding shell fragment, clamping subassembly and terminal, in order to make the terminal of this connector can be applicable to bigger electric current in order to use in the environment of quick charge, the common way is to adopt thickened conducting material, but the thickening of material makes the elastic force arm thickening of power supply terminal, reduces the elasticity of the elastic force arm, makes the wearing and tearing of the contact site of terminal accelerate.

Disclosure of Invention

The invention aims to provide a conductive terminal structure which can be applied to a quick charging environment and can not accelerate the abrasion of a contact part of a conductive terminal.

In order to achieve the purpose, the invention adopts the technical scheme that:

a conductive terminal structure comprises a first terminal and at least one second terminal electrically connected with the first terminal;

wherein the first terminal includes:

a first body;

a first elastic upper arm;

a first lower resilient arm, the first upper resilient arm and the first lower resilient arm each having a first contact;

the second terminal includes:

the second main body is fixedly connected with the first main body;

a second elastic upper arm;

a second resilient lower arm, the second resilient upper arm and the second resilient lower arm each being provided with a second contact portion.

Preferably, the portable electronic device further comprises a connecting piece, one end of the connecting piece is fixedly connected with the first main body, and the other end of the connecting piece is fixedly connected with the second main body.

Preferably, the first body, the second body and the connector are of an integral structure.

Preferably, the connector is U-shaped.

Preferably, the first terminal and the second terminal are parallel to each other.

Preferably, the first terminal is provided with a first protrusion.

Preferably, the second terminal is provided with a second protrusion.

Preferably, the first resilient upper arm comprises a first resilient upper arm front end and a first resilient upper arm rear end, the first body is located between the first resilient upper arm front end and the first resilient upper arm rear end, the first resilient lower arm comprises a first resilient lower arm front end and a first resilient lower arm rear end, and the first body is located between the first resilient lower arm front end and the first resilient lower arm rear end.

Preferably, the rear end of the first elastic upper arm and the rear end of the first elastic lower arm are both provided with a first contact part, the thickness of the first contact part is less than that of the rear end of the first elastic upper arm, and the thickness of the first contact part is less than that of the rear end of the first elastic lower arm.

Preferably, the second elastic upper arm comprises a second elastic upper arm front end and a second elastic upper arm rear end, the second body is located between the second elastic upper arm front end and the second elastic upper arm rear end, the second elastic lower arm comprises a second elastic lower arm front end and a second elastic lower arm rear end, and the second body is located between the second elastic lower arm front end and the second elastic lower arm rear end.

Preferably, the rear end of the second elastic upper arm and the rear end of the second elastic lower arm are both provided with a second contact part, the thickness of the second contact part is less than that of the rear end of the second elastic upper arm, and the thickness of the second contact part is less than that of the rear end of the second elastic lower arm.

Preferably, the first body is snap-fitted with the second body.

Preferably, the first body is provided with a fastening groove, and the second body is provided with a fastening part fastened with the fastening groove.

The invention has the beneficial effects that: the conductive terminal is divided into two parts, namely a first terminal and a second terminal, and the first terminal is electrically connected with the second terminal, so that current is shared by the first terminal and the second terminal, and the generation of a large amount of heat due to overhigh current is reduced.

Drawings

FIG. 1 is a schematic expanded structure of a first terminal and a second terminal according to an embodiment of the present invention;

FIG. 2 is an enlarged, fragmentary view of the first and second terminals of an embodiment of the present invention after deployment;

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

FIG. 4 is a partially enlarged view of an embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

As shown in fig. 1 to 4, a conductive terminal structure includes a first terminal 100 and at least one second terminal 200 electrically connected to the first terminal, where the number of the second terminals 200 is at least one; wherein the first terminal 100 comprises a first body 110, a first upper resilient arm 120 and a first lower resilient arm 130, the first upper resilient arm 120 and the first lower resilient arm 130 each being provided with a first contact portion 140(140a, 140b, 140c, 140 d); the second terminal 200 includes a second body 210 fixedly connected to the first body, a second upper resilient arm 220 and a second lower resilient arm 230, the second upper resilient arm 220 and the second lower resilient arm 230 each being provided with a second contact portion 240(240a, 240b, 240c, 240 d). The conductive terminal is divided into two parts, namely a first terminal 100 and a second terminal 200, and the first terminal 100 is electrically connected with the second terminal 200, so that current is shared by the first terminal 100 and the second terminal 200, thereby reducing a large amount of heat generated due to overhigh current.

Also included is a connector 300 which is in the form of a sheet and is injection molded from a metal material, typically a copper alloy, by metal injection molding. One end of the connector 300 is fixedly connected with the first body 110, the other end of the connector 300 is fixedly connected with the second body 210, and the first body 110 is connected with the second body 210 through the connector 300; preferably, the first body 110, the second body 210 and the connector 300 are formed as a unitary structure by metal injection molding.

The connector 300 is U-shaped, and the first terminal 100 and the second terminal 200 are arranged side by bending the connector 300 into a U-shape, and preferably, the first terminal 100 and the second terminal 200 are parallel to each other.

The first terminal 100 is provided with a first protrusion 150, and the first protrusion 150 is inserted into the inside of the related art insulating case by insert molding, so that the fixation of the first terminal 100 is stabilized.

The second terminal 200 is provided with a second protrusion 250, and the second protrusion 250 is inserted into the inside of the related art insulation case by insert molding, so that the fixation of the second terminal 200 is stabilized.

The first resilient upper arm 120 comprises a first resilient upper arm front end 121 and a first resilient upper arm rear end 122, the first body 110 is located between the first resilient upper arm front end 121 and the first resilient upper arm rear end 122, the first resilient lower arm 130 comprises a first resilient lower arm front end 131 and a first resilient lower arm rear end 132, and the first body 110 is located between the first resilient lower arm front end 131 and the first resilient lower arm rear end 132. The

rear ends

122 and 132 of the first elastic upper arms and the first elastic lower arms are welded with the circuit board to realize the electrical connection with the circuit board; preferably, the first elastic upper arm rear end 122 and the first elastic lower arm rear end 132 are provided with

first contact portions

140c and 140d, the thickness of the first contact portion 140c is less than that of the first elastic upper arm rear end 122, and the thickness of the first contact portion 140d is less than that of the first elastic lower arm rear end 132, so that when the first contact portion 140c of the first elastic upper arm rear end 122 and the first contact portion 140d of the first elastic lower arm rear end 132 are soldered to a circuit board, since the thickness of the first contact portion 140c is less than that of the first elastic upper arm rear end 122, the thickness of the first contact portion 140d is less than that of the first elastic lower arm rear end 132, that is, a gap 5 exists, so that a sufficient space for soldering a pad of the circuit board and a tin climbing assistance function through the gap 5 are ensured.

The second resilient upper arm 220 comprises a second resilient upper arm front end 221 and a second resilient upper arm rear end 222, the second body 210 is located between the second resilient upper arm front end 221 and the second resilient upper arm rear end 222, the second resilient lower arm 230 comprises a second resilient lower arm front end 231 and a second resilient lower arm rear end 232, and the second body 210 is located between the second resilient lower arm front end 231 and the second resilient lower arm rear end 232. The

rear ends

222 and 232 of the second elastic upper arm and the second elastic lower arm are welded to the circuit board, so that the circuit board is electrically connected; preferably, the second elastic upper arm rear end 222 and the second elastic lower arm rear end 232 are both provided with

second contact portions

240c and 240d, the thickness of the second contact portion 240c is less than that of the second elastic upper arm rear end 222, and the thickness of the second contact portion 240d is less than that of the second elastic lower arm rear end 232, so that when the second contact portion 240c of the second elastic upper arm rear end 222 and the second contact portion 240d of the second elastic lower arm rear end 232 are soldered to a circuit board, since the thickness of the second contact portion 240c is less than that of the second elastic upper arm rear end 222, the thickness of the second contact portion 240d is less than that of the second elastic lower arm rear end 232, that is, a gap 6 exists, so that a sufficient space for soldering a pad of the circuit board and a tin climbing assistance function through the gap 6 are ensured.

The first body 110 is fastened to the second body 210, so that the first terminal 100 and the second terminal 200 are more stably fixed; preferably, the first body 110 is provided with a fastening groove 111, and the second body 210 is provided with a fastening portion 211 fastened with the fastening groove.

The insert molding is a molding method in which a predetermined insert made of a different material is placed in a mold, a resin is injected, and the molten material is bonded to the insert and solidified to form an integrated product.

The power terminal, signal terminal, detecting terminal (CC1, for detecting the function of forward and reverse insertion and recognizing the function of CABLE) and the expansion terminal (SBU1, defined as other purposes) of the Type-C connector can all adopt the structure of the conductive terminal of the present invention.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A conductive terminal structure is characterized by comprising a first terminal and at least one second terminal electrically connected with the first terminal;

wherein the first terminal includes:

a first body;

a first elastic upper arm;

the second terminal includes:

the second main body is fixedly connected with the first main body;

a second elastic upper arm;

2. An electrically conductive terminal structure as claimed in claim 1, wherein: the connecting piece is further included, one end of the connecting piece is fixedly connected with the first main body, and the other end of the connecting piece is fixedly connected with the second main body.

3. An electrically conductive terminal structure as claimed in claim 2, wherein: the first body, the second body and the connecting piece are of an integrated structure.

4. An electrically conductive terminal structure as claimed in claim 3, wherein: the connecting piece is U-shaped.

5. An electrically conductive terminal structure as claimed in claim 4, wherein: the first terminal and the second terminal are parallel to each other.

6. An electrically conductive terminal structure as claimed in any one of claims 1 to 5, wherein: the first terminal is provided with a first protrusion, and the second terminal is provided with a second protrusion.

7. An electrically conductive terminal structure as claimed in any one of claims 1 to 5, wherein: first elasticity upper arm includes first elasticity upper arm front end and first elasticity upper arm rear end, first main part is located first elasticity upper arm front end with between the first elasticity upper arm rear end, first elasticity underarm includes first elasticity underarm front end and first elasticity underarm rear end, first main part is located first elasticity underarm front end with between the first elasticity underarm rear end.

8. An electrically conductive terminal structure as claimed in claim 7, wherein: the rear end of the first elastic upper arm and the rear end of the first elastic lower arm are both provided with a first contact part, the thickness of the first contact part is less than that of the rear end of the first elastic upper arm, and the thickness of the first contact part is less than that of the rear end of the first elastic lower arm.

9. An electrically conductive terminal structure as claimed in any one of claims 1 to 5, wherein: the second upper resilient arm comprises a second upper resilient arm forward end and a second upper resilient arm rearward end, the second body is positioned between the second upper resilient arm forward end and the second upper resilient arm rearward end, the second lower resilient arm comprises a second lower resilient arm forward end and a second lower resilient arm rearward end, the second body is positioned between the second lower resilient arm forward end and the second lower resilient arm rearward end; the rear end of the second elastic upper arm and the rear end of the second elastic lower arm are both provided with a second contact part, the thickness of the second contact part is less than that of the rear end of the second elastic upper arm, and the thickness of the second contact part is less than that of the rear end of the second elastic lower arm.

10. An electrically conductive terminal structure as claimed in any one of claims 1 to 5, wherein: the first main body is buckled with the second main body; the first main body is provided with a buckling groove, and the second main body is provided with a buckling part buckled with the buckling groove.