CN215418825U

CN215418825U - Electric connector

Info

Publication number: CN215418825U
Application number: CN202121680854.0U
Authority: CN
Inventors: 蔡添庆
Original assignee: Dongguan Guangzhou Precision Electronic Co ltd
Current assignee: Dongguan Guangzhou Precision Electronic Co ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2022-01-04
Anticipated expiration: 2031-07-23

Abstract

The utility model relates to an electric connector, which is provided with an insulating main body, a terminal and a grounding piece, wherein the insulating main body is provided with an assembling part, and the terminal and an insulating block are integrally molded by injection; the grounding piece is positioned on the insulating block and is in conductive connection with a terminal to be grounded; the insulating block carries the terminal and the grounding piece to be assembled in the assembling part of the insulating main body together, and the terminal and the grounding piece are stabilized on the insulating main body through the fixed connection between the insulating block and the insulating main body, so that the electric connector with the preset function is obtained. The utility model has simple structure, convenient assembly and alignment, ensures that the grounded terminal and the grounding piece are stably and accurately connected in a conducting way, achieves the short circuit of the terminal which needs to be grounded of the whole product, and improves the stability and the high-frequency performance of the electric connector through the high-frequency requirement.

Description

Electric connector

Technical Field

The utility model relates to the technical field of electric connectors, in particular to an electric connector with a grounding structure.

Background

In recent years, electrical connectors are widely used in various electronic devices, but the size of the electrical connector is required to be reduced continuously in response to the development of the lightness and thinness of the electronic devices, so that the influence on the electrical connector not only increases the processing difficulty, but also weakens the structural strength.

However, if the size of the electrical connector is continuously reduced, the size of the electrical connector components is also reduced, so that the assembly of the electrical connector components is difficult, and particularly, the grounding piece is inconvenient to assemble, so that the grounding connection of the grounding terminal is unstable, the shielding effect is poor, and the high-frequency performance of the electrical connector is greatly influenced.

Disclosure of Invention

The utility model aims to provide an electric connector which is convenient to manufacture and assemble, well solves the problems in the prior art, realizes good short-circuit connection of terminals needing grounding in the electric connector, and improves the stability and high-frequency performance of the electric connector.

In order to achieve the purpose, the utility model adopts the following technical scheme:

an electrical connector, comprising:

an insulating main body provided with an assembling portion;

the terminal and the insulating block are integrally injection-molded;

the grounding piece is positioned on the insulating block and is in conductive connection with a terminal to be grounded;

the insulating block carries the terminal and the grounding piece to be assembled in the assembling part of the insulating main body together, and the terminal and the grounding piece are stabilized on the insulating main body through the fixed connection between the insulating block and the insulating main body, so that the electric connector with the preset function is obtained.

The scheme is further as follows: the electric connector is a slot connector, the insulating main body is in a strip shape and is provided with a plug-in end and a tin pin end which are opposite, and a slot is arranged on the plug-in end; the assembling part extends along the length direction of the insulating main body on the tin pin end and is communicated with the slot; after the insulating block is assembled to the insulating main body together with the terminal and the grounding piece, the contact part of the terminal extends into the slot and is used for being in conductive connection with an external daughter card; and the solder tails of the terminals are exposed at the solder tail ends of the insulative body.

The scheme is further as follows: the terminals are divided into two rows, the two rows of terminals are held by the insulating blocks to obtain stable states, then the two rows of terminals are assembled on the insulating main body in a parallel mode, the contact parts of the two rows of terminals are distributed on the side walls, expected relatively, in the slot, of the inner part of the slot, the grounding piece extends along the arrangement direction of the terminals, and at least the terminals in the same row, which need to be grounded, are connected together in a conduction mode.

The scheme is further as follows: the grounding piece comprises a fixing part and a contact pin extending out of the fixing part, the fixing part is connected with the insulating block, and the contact pin is in conductive connection with a terminal to be grounded.

The scheme is further as follows: the fixing part of the grounding piece is attached to the side surface of the insulating block in a surface-mounted manner, and a positioning structure is additionally arranged between the fixing part and the insulating block; an avoiding part is further arranged on the insulating block, and a contact pin of the grounding piece is in conduction connection with a terminal to be grounded through the avoiding part.

The scheme is further as follows: the assembly part of the insulation main body is in an inwards concave form, a buckle is arranged on the inner side wall of the assembly part, the shape and the size of the insulation block are matched with the assembly part, a buckle groove is formed in the side face of the insulation block, the insulation block is embedded into the assembly part, and the buckle groove are matched to establish anti-withdrawal clamping.

The scheme is further as follows: the contact pin of the grounding piece is of a splayed double-elastic-piece structure.

The scheme is further as follows: the positioning structure between the fixing part of the grounding piece and the insulating block comprises a positioning column protruding from the insulating block and a positioning hole formed in the fixing part of the grounding piece.

The terminal and the insulating block are molded into a whole, and the grounding piece is positioned on the insulating block and is connected with the terminal to be grounded in a conduction manner; the insulating block is then assembled into the assembly portion of the insulating body together with the terminal and the ground piece, and the terminal and the ground piece are stabilized on the insulating body by the fixed connection between the insulating block and the insulating body. Simple structure, convenient equipment, counterpoint to make the terminal of ground connection and the stable and accurate conduction connection of ground connection spare, reach the terminal short circuit of the needs ground connection of whole product, through the high frequency requirement, promote electric connector's stability and high frequency performance.

Description of the drawings:

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

FIG. 2 is a schematic diagram of the assembled embodiment of FIG. 1;

FIG. 3 is a schematic view of the grounding member assembly of the embodiment of FIG. 1;

FIG. 4 is a schematic view of the structure of the insulating body of the embodiment of FIG. 1;

fig. 5 is a schematic diagram of the structure on the insulating block of the embodiment of fig. 1.

The specific implementation mode is as follows:

the conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 to 5, the present invention relates to an electrical connector, and more particularly, to an electrical connector with a grounding structure, the electrical connector includes an insulating main body 1, a terminal 2 and a grounding member 3, and specifically, the insulating main body 1 is provided with an assembling portion 11; the terminal 2 and the insulating block 4 are molded into a whole to form a terminal assembly, the terminal 2 comprises a signal terminal, a power terminal and a grounding terminal, and the specific number and type of the terminals are determined according to actual needs. The grounding piece 3 is positioned on the insulating block 4 and is in conductive connection with the terminal 2 to be grounded; subsequently, the insulating block 4 is assembled into the assembly portion 11 of the insulating body together with the terminal 2 and the ground member 3, and the terminal 2 and the ground member 3 are stabilized on the insulating body 1 by the fixed connection between the insulating block 4 and the insulating body 1, thereby obtaining an electrical connector having a predetermined function. Simple structure, convenient equipment, counterpoint to make terminal 2 and the stable and accurate conduction connection of ground connection piece 3, reach the terminal short circuit of the needs ground connection of whole product, through the high frequency requirement.

Referring to fig. 1 to 5, the electrical connector of the present embodiment is a slot connector, and the technical solution of the present invention is illustrated by a PCI E connector, but is not limited to the type shown in the drawings. The insulating main body 1 is strip-shaped and is provided with an inserting end 12 and a tin pin end 13 which are opposite, and the inserting end 12 is provided with a slot 14; the assembling part 11 extends along the length direction of the insulating main body on the tin pin end 13, and the assembling part 11 is communicated with the slot 14; after the insulating block 4 is assembled to the insulating main body 1 together with the terminal 2 and the grounding piece 3, the contact part 21 of the terminal extends into the slot 14 for conducting connection with an external daughter card; the solder feet 22 of the terminals are exposed from the solder foot ends 13 of the insulating body, and the solder feet 22 are exposed from the insulating body and bent to obtain a bonding welding shape for welding connection. In this embodiment, the terminals 2 are divided into two rows, and the two rows of terminals are held by the insulating block 4 to obtain a stable state. Two rows of terminals shown in the figure are fixed through two insulation blocks 4 respectively to obtain corresponding terminal assemblies so as to facilitate subsequent assembly, the gaps between the terminals are stable, the flatness between the terminals is good, and the assembly efficiency and quality are effectively improved. Two rows of terminals are assembled on the insulating main body 1 in a parallel mode, contact parts 21 of the two rows of terminals are distributed on the side walls, expected relatively, in the slot, of the inner part of the slot, the double-sided clamping connection external daughter card is obtained, and the signal transmission requirement is met. The direction that the ground connection piece 3 was arranged along the terminal extends the structure, realizes at least that the terminal turn-on connection that needs the ground connection of arranging is in the same place, and not only convenient equipment like this also effectively increases the short circuit effect, promotes electric connector's high frequency performance.

In this embodiment, the assembling portion 11 of the insulating main body is concave, the inner side wall of the assembling portion is provided with a buckle 111, the shape and size of the insulating block 4 are matched with the assembling portion 11, the side surface of the insulating block 4 is provided with a buckle groove 41, during assembling, the insulating block 4 is embedded into the assembling portion 11, the insulating block 4 is accurately assembled on the insulating main body 1 together with the terminal 2 and the grounding piece 3 by utilizing the limitation and tight fit of the peripheral wall of the assembling portion 11, and meanwhile, the buckle 111 is matched with the buckle groove 41 to establish anti-back clamping, so that the insulating block 4 is fixed on the insulating main body 1. The structure is simple, the manufacture and the assembly are convenient, the assembly quality is good, and the looseness is not easy to occur.

The grounding member 3 includes a fixing portion 31 and a contact pin 32 extending from the fixing portion, the fixing portion 31 is connected to the insulating block 4, and the contact pin 32 is conductively connected to the terminal 2 to be grounded. As shown in the figure, the grounding piece 3 is obtained by stamping a sheet, the fixing part 31 is attached to and connected with the side surface of the insulating block 4 in a surface-mount manner, and a positioning structure is added between the fixing part 31 and the insulating block 4, so that positioning assembly is obtained, and alignment and combination are facilitated. The fixing part 31 is attached to the side face of the insulating block 4 and assembled on the insulating body 1 along with the insulating block 4, and further the fixing part 31 of the grounding piece 3 can be clamped between the insulating block 4 and the insulating body 1, so that the assembly structure of the grounding piece 3 is ensured. The insulating block 4 is further provided with a relief portion 42, and the relief portion 42 may be in the form of a cut groove or a hollowed through hole, so that the contact pin 32 of the grounding member is conductively connected with the terminal 2 to be grounded through the relief portion 42. In this embodiment, the contact pin 32 of the grounding member is a double-elastic-piece structure with a splayed shape, so as to increase the grounding area, and by using the elasticity, the contact pin 32 is promoted to be effectively and durably connected with the terminal 2 to be grounded. The positioning structure between the fixing portion 31 of the grounding member and the insulating block 4 comprises a positioning column 43 protruding from the insulating block and a positioning hole 311 formed in the fixing portion 31 of the grounding member, and preferably, the positioning column 43 and the positioning hole 311 are in interference fit, so that stable assembly between the grounding member 3 and the insulating block 4 is realized.

While the preferred embodiments of the utility model have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model.

Claims

1. An electrical connector, comprising: has the advantages of

An insulating main body provided with an assembling portion;

the terminal and the insulating block are integrally injection-molded;

2. An electrical connector as defined in claim 1, wherein: the electric connector is a slot connector, the insulating main body is in a strip shape and is provided with a plug-in end and a tin pin end which are opposite, and a slot is arranged on the plug-in end; the assembling part extends along the length direction of the insulating main body on the tin pin end and is communicated with the slot; after the insulating block is assembled to the insulating main body together with the terminal and the grounding piece, the contact part of the terminal extends into the slot and is used for being in conductive connection with an external daughter card; and the solder tails of the terminals are exposed at the solder tail ends of the insulative body.

3. An electrical connector as defined in claim 2, wherein: the terminals are divided into two rows, the two rows of terminals are held by the insulating blocks to obtain stable states, then the two rows of terminals are assembled on the insulating main body in a parallel mode, the contact parts of the two rows of terminals are distributed on the side walls, expected relatively, in the slot, of the inner part of the slot, the grounding piece extends along the arrangement direction of the terminals, and at least the terminals in the same row, which need to be grounded, are connected together in a conduction mode.

4. An electrical connector as claimed in claim 1 or 2, wherein: the grounding piece comprises a fixing part and a contact pin extending out of the fixing part, the fixing part is connected with the insulating block, and the contact pin is in conductive connection with a terminal to be grounded.

5. An electrical connector as defined in claim 4, wherein: the fixing part of the grounding piece is attached to the side surface of the insulating block in a surface-mounted manner, and a positioning structure is additionally arranged between the fixing part and the insulating block; an avoiding part is further arranged on the insulating block, and a contact pin of the grounding piece is in conduction connection with a terminal to be grounded through the avoiding part.

6. An electrical connector as claimed in claim 1 or 2, wherein: the assembly part of the insulation main body is in an inwards concave form, a buckle is arranged on the inner side wall of the assembly part, the shape and the size of the insulation block are matched with the assembly part, a buckle groove is formed in the side face of the insulation block, the insulation block is embedded into the assembly part, and the buckle groove are matched to establish anti-withdrawal clamping.

7. An electrical connector as defined in claim 4, wherein: the contact pin of the grounding piece is of a splayed double-elastic-piece structure.

8. An electrical connector as defined in claim 5, wherein: the positioning structure between the fixing part of the grounding piece and the insulating block comprises a positioning column protruding from the insulating block and a positioning hole formed in the fixing part of the grounding piece.