CN210517116U

CN210517116U - Electric connector

Info

Publication number: CN210517116U
Application number: CN201921695122.1U
Authority: CN
Inventors: 李建华
Original assignee: SHENZHEN GLGNET ELECTRONICS CO Ltd
Current assignee: Shenzhen direction Electronics Co.,Ltd.
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-05-12
Anticipated expiration: 2029-10-11

Abstract

The utility model relates to the field of electronic technology, a electric connector is provided, it includes insulating casing, terminal group and terminal row, wherein: the insulating shell is provided with an inserting cavity and a retraction part, a plurality of upper terminal grooves are formed on the top wall of the rear section of the inserting cavity, a plurality of lower terminal grooves are formed on the bottom wall of the front section of the inserting cavity, terminal holes are arranged below the lower terminal grooves, and the retraction part is formed below the inserting cavity behind the insulating shell; the terminal group is provided with a plurality of lower terminals, each lower terminal comprises a fixing part and a first elastic part, the fixing parts are connected with the main body part, the fixing parts are stably fixed in the terminal holes, and the first elastic parts fall into the lower terminal grooves; the terminal row comprises a rubber core and a plurality of upper terminals, the upper terminals are provided with second elastic parts, vertical parts extend, the vertical parts are buried in the rubber core, the rubber core is buckled on the retraction parts, and the second elastic parts are suspended in the upper terminal grooves.

Description

Electric connector

Technical Field

The present invention relates to the field of electronic technology, and more particularly, to an electrical connector.

Background

An electrical connector for use in a high speed data transmission system to control electrical impedance to maintain a desired data transmission rate for the electrical system. It is desirable to achieve matching of specific impedances throughout an electronic system connection, such as circuits on a circuit board and circuits of an opposing electronic device or transmission cables, etc., at high data transmission rates. Generally, the connector impedance may be controlled by the spacing of the terminals, the size of the terminals, and the thickness and location of the material within the connector housing. However, in electronic devices where space is at a premium, a low profile connector such as an SFP (small form-factor pluggable) is required, and impedance must be controlled by reducing pitch and improving manufacturing. For example: in the earlier technology shown in fig. 1, terminal slots 102 are formed in the front and rear of the housing 101 and the front and

rear terminal sets

103 and 104 are fixed by the terminal slots 102, so that the connector assembly process is completed in a plug-in manner, which can ensure the production capacity but is not favorable for improving the product yield.

Disclosure of Invention

To solve the above technical problems, the present invention provides an electrical connector.

In order to achieve the purpose, the technical scheme of the invention is as follows: provided is an electrical connector including:

the insulating shell is provided with an inserting cavity and a retraction part, a plurality of upper terminal grooves are formed on the top wall of the rear section of the inserting cavity, a plurality of lower terminal grooves are formed on the bottom wall of the front section of the inserting cavity, terminal holes are arranged below the lower terminal grooves, and the retraction part is formed below the inserting cavity behind the insulating shell;

the terminal group is provided with a plurality of lower terminals, each lower terminal comprises a fixing part and a first elastic part, the fixing parts are connected with the main body parts, the fixing parts are stably fixed in the terminal holes, so that the first elastic parts fall into the lower terminal grooves, the first elastic parts are provided with first contacts, and the first contacts are positioned in the lower terminal grooves or the inserting cavities;

the terminal row comprises a rubber core and a plurality of upper terminals, wherein the upper terminals are provided with second elastic parts with vertical parts extending, the second elastic parts are provided with second contacts, the vertical parts are embedded in the rubber core, the rubber core is buckled at the retraction parts and is integrated with the insulation shell through hot melting, the second elastic parts are suspended in the upper terminal grooves, and the second contacts are positioned in the upper terminal grooves or the plug cavities and correspond to the first contacts.

In the present embodiment, it is preferable that: the insulating shell comprises a front surface, a rear surface, a left side surface and a right side surface, the inserting cavity penetrates through the front surface and the rear surface, the terminal hole penetrates from the front surface to the rear surface, and a spacing part is formed between the terminal hole and the lower terminal groove.

In the present embodiment, it is preferable that: the retraction part is convexly provided with a left column and a right column, the left column is close to the left side surface in the retraction part, and the right column is close to the right side surface in the retraction part.

In the present embodiment, it is preferable that: the insulating shell also comprises a bottom surface and a left foot post and a right foot post which are vertical to the bottom surface and extend.

In the present embodiment, it is preferable that: the length of the upper terminal groove is 3/5 to 2/3 of the length of the plug cavity; the length of the lower terminal groove is 3/5 to 2/3 of the length of the plugging cavity, so that the upper terminal groove and the lower terminal groove form opposite active areas in the plugging cavity; the setback occupies 3/5 to 2/3 of the height of the insulating case.

In the present embodiment, it is preferable that: the terminal of the terminal group comprises a first welding part which extends backwards along the rear side of the main body part; the fixing part extends to the front side of the main body part and is provided with a salient point interfering with the spacing part on one side of the terminal hole, the first elastic part extends upwards in an inclined mode on the upper side close to the rear side of the main body part, and the first contact is close to the free end of the first elastic part.

In the present embodiment, it is preferable that: the terminal row is moulding and includes gluey core and through this fixed a plurality of terminals of gluing the core, wherein: the molding is to insert several terminals into a mold and form an integral component through injection molding and solidification.

In the present embodiment, it is preferable that: the rubber core is rectangular and comprises a left hole and a right hole which are arranged on two sides and are matched with the penetration of the left column and the right column.

In the present embodiment, it is preferable that: the vertical part is provided with a second welding part extending opposite to one end of the second elastic part, the two ends of the vertical part extend in opposite directions, the second elastic part is arc-shaped near the root, and the second contact is near the tail end of the second elastic part.

In the present embodiment, it is preferable that: the terminal row is buckled on the retraction part and is positioned with the left hole and the right hole through the left column and the right column.

Compared with the prior art, the invention has the beneficial effects that: the structure is simple, the automatic manufacture is easy, the productivity can be improved, the product yield can be improved, and the product cost is effectively reduced.

Drawings

Fig. 1 is a schematic view of a prior art structure.

Fig. 2 is a schematic structural diagram of the present embodiment.

Fig. 3 is a schematic structural diagram of another view angle in the present embodiment.

FIG. 4 is a schematic sectional view of the present embodiment

Fig. 5 is an exploded view of the present embodiment.

Detailed Description

While this invention is susceptible of embodiment in different forms, there is shown in the drawings and will herein be described in detail, specific embodiments thereof with the understanding that the present description is to be considered as an exemplification of the principles of the invention and is not intended to limit the invention to that as illustrated.

Thus, a feature indicated in this specification is intended to describe one of the features of an embodiment of the invention and does not imply that every embodiment of the invention must have the described feature. Further, it should be noted that this specification describes many features. Although some features may be combined to show a possible system design, these features may also be used in other combinations not explicitly described. Thus, the combinations illustrated are not intended to be limiting unless otherwise specified.

In the embodiments shown in the drawings, the directions such as up, down, left, right, front, and rear are used to explain the structure and movement of various components of the present invention not absolutely but relatively. These illustrations are appropriate when these components are in the positions shown in the figures. If the description of the positions of these components changes, the indication of these directions changes accordingly.

The preferred embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

Referring to fig. 2 in combination with fig. 3, fig. 4 and fig. 5, there is provided an electrical connector including an insulating housing 10, a terminal set 20 and a terminal block 30, wherein:

the insulation shell 10 comprises a front face, a rear face, a left side face and a right side face and is provided with a plug-in cavity 12 penetrating through the front face and the rear face, an upper terminal groove 11 is arranged on the top wall of the rear section of the plug-in cavity 12, a lower terminal groove 13 is arranged on the bottom wall of the front section of the plug-in cavity 12, a terminal hole 14 is arranged below the corresponding lower terminal groove 13, the terminal hole 14 extends from the front face to the rear face, and a non-communicated interval part (not marked) is formed between the terminal hole 14 and the lower terminal groove 13; a retraction part 15 is arranged at the rear, the retraction part 15 is formed below the rear, so that a rear protrusion part (not marked) is formed at the opposite upper part relative to the retraction part 15; a left column 16 and a right column 16 respectively protrude backwards on the retracting part 15 close to the left side surface and the right side surface, and the length of the left column 16 and the length of the right column 16 are equivalent to the length of the rear protruding part; left and right foot posts 17 are respectively vertically arranged on the bottom surfaces close to the left and right side surfaces. In the present embodiment, the length of the upper terminal groove 11 is 3/5 to 2/3 of the length of the plug cavity 121, and the length of the lower terminal groove 13 is 3/5 to 2/3 of the length of the plug cavity 12, so that the upper and

lower terminal grooves

11, 13 are separated by the plug cavity 12 and form opposite active regions (not labeled); in the present embodiment, the height of the rear protrusion is 3/5 to 2/3 of the height of the retraction portion 15, the left and right pillars 16 on the retraction portion 15 are located at the middle or the middle upper position of the height of the retraction portion 15, and the periphery of the left and right pillars 16 above is the same height (i.e. the same horizontal line) as the bottom wall of the plugging chamber 12;

the terminal group 20 is composed of lower terminals in accordance with the number of the lower terminal grooves 13, wherein: the lower terminal is inserted into the insulating housing 10 from the front of the insulating housing 10 by an automatic machine, and includes a main body 21, a fixing portion 22 connected to the main body 21, a first soldering portion 23, and a first elastic portion 24, in this embodiment, the fixing portion 22 extends to the front of the main body 21 and has a protruding point 221, the first soldering portion 23 extends downward and rearward along the rear of the main body 21 and forms a soldering surface (not labeled), and the first elastic portion 24 forms a first contact 241 obliquely extending upward and forming an arc shape on the upper side near the rear of the main body 21. In this embodiment, when the fixing portion 22 is inserted into the terminal hole 14, the protruding point 221 interferes with the terminal hole 14, so that the terminal is firmly fixed in the insulating housing 10, at this time, the first elastic portion 24 can be moved in the lower terminal groove 13, and the first contact 241 is located in the insertion cavity 12 (of the moving area), thereby facilitating the realization of the butt connection with the corresponding external device;

the terminal block 30 is molded and includes a rubber core 31 and a plurality of upper terminals 32 fixed by the rubber core 31, wherein: the molding process is to insert a plurality of terminals into a mold through a material strip (not shown) and form an integral component through injection molding and curing, wherein: the rubber core 31 is rectangular and comprises a left hole 311 and a right hole 311 which are arranged on two sides and are penetrated by the left column 16 and the right column 16; the upper terminal has a vertical portion (not shown), and a second elastic portion 322 and a second welding portion 323 extending from two ends of the upper terminal, the second elastic portion 322 and the second welding portion 323 extend in opposite directions, and the second elastic portion 322 is an arc-shaped second contact 3221 extending obliquely downward and forming an arc shape near the root, in this embodiment, in the vertical portion rubber core 31, the root of each second elastic portion 322 is arranged in a shape of a Chinese character "one" on the upper side of the rubber core 31, and the second welding portion 323 is also protruded in a shape of a Chinese character "one" on the rear edge of the lower side. In the embodiment, the terminal row 30 is fastened to the retraction portion 15, interferes with the left and right holes 311 through the left and right posts 16, and combines the adhesive core 31 with the insulation case 10 in a hot-melt manner, and at this time, the second elastic portion 322 can move in the upper terminal groove 11 through the insertion cavity 12, so that the second contact 3221 of the second elastic portion 322 and the first contact 241 form an up-down corresponding situation in the insertion cavity 12.

Claims

1. The utility model provides an electric connector, includes insulating casing, terminal group and terminal row, its characterized in that: the insulating shell is provided with an inserting cavity and a retraction part, a plurality of upper terminal grooves are formed on the top wall of the rear section of the inserting cavity, a plurality of lower terminal grooves are formed on the bottom wall of the front section of the inserting cavity, terminal holes are arranged below the lower terminal grooves, and the retraction part is formed below the inserting cavity behind the insulating shell; the terminal group is provided with a plurality of lower terminals, each lower terminal comprises a fixing part and a first elastic part, the fixing part is connected with the main body part, the fixing part is firmly fixed in the terminal hole, so that the first elastic part falls into the lower terminal groove, the first elastic part is provided with a first contact, and the first contact is positioned in the lower terminal groove or the plugging cavity; the terminal row comprises a rubber core and a plurality of upper terminals, the upper terminals are provided with second elastic parts, vertical parts of the second elastic parts extend, the second elastic parts are provided with second contacts, the vertical parts are embedded in the rubber core, the rubber core is buckled in the retraction parts and the rubber core and the insulating shell are combined into a whole through hot melting, at the moment, the second elastic parts are suspended in the upper terminal grooves, and the second contacts are positioned in the upper terminal grooves or the plug cavities and correspond to the first contacts.

2. The electrical connector of claim 1, wherein: the insulating shell comprises a front surface, a rear surface, a left side surface and a right side surface, the inserting cavity penetrates through the front surface and the rear surface, the terminal hole penetrates from the front surface to the rear surface, and a spacing part is formed between the terminal hole and the lower terminal groove.

3. The electrical connector of claim 2, wherein: the retraction part is convexly provided with a left column and a right column, the left column is close to the left side surface in the retraction part, and the right column is close to the right side surface in the retraction part.

4. The electrical connector of claim 3, wherein: the insulating shell also comprises a bottom surface and a left foot post and a right foot post which are vertical to the bottom surface and extend.

5. The electrical connector of claim 4, wherein: the length of the upper terminal groove is 3/5 to 2/3 of the length of the plug cavity; the length of the lower terminal groove is 3/5 to 2/3 of the length of the plugging cavity, so that the upper terminal groove and the lower terminal groove form opposite active areas in the plugging cavity; the setback occupies 3/5 to 2/3 of the height of the insulating case.

6. The electrical connector of claim 5, wherein: the terminal of the terminal group comprises a first welding part which extends backwards along the rear side of the main body part; the fixing part extends to the front side of the main body part and is provided with a salient point interfering with the spacing part on one side of the terminal hole, the first elastic part extends upwards in an inclined mode on the upper side close to the rear side of the main body part, and the first contact is close to the free end of the first elastic part.

7. The electrical connector of claim 6, wherein: the terminal row is moulding and includes gluey core and through this fixed a plurality of terminals of gluing the core, wherein: the molding is to insert several terminals into a mold and form an integral component through injection molding and solidification.

8. The electrical connector of claim 7, wherein: the rubber core is rectangular and comprises a left hole and a right hole which are arranged on two sides and are matched with the penetration of the left column and the right column.

9. The electrical connector of claim 8, wherein: the vertical part is provided with a second welding part extending opposite to one end of the second elastic part, the two ends of the vertical part extend in opposite directions, the second elastic part is arc-shaped near the root, and the second contact is near the tail end of the second elastic part.

10. The electrical connector of claim 9, wherein: the terminal row is buckled on the retraction part and is positioned with the left hole and the right hole through the left column and the right column.