CN201937046U - Improved structure of electric connector - Google Patents

Abstract

The utility model discloses an improved structure of an electrical connector, which includes an insulating body and a plurality of conductive terminals retained in the insulating body, the insulating body having a side wall and a tongue portion extending forward along the front end of the side wall, the tongue portion being arranged with a plurality of terminal slots, the conductive terminal comprising a retaining portion, a snap-fitting portion and a connecting portion, the snap-fitting portion being in a "Z"-shaped structure, the conductive terminal being accommodated and fixed in the terminal slot, a retaining wall extending from the front end top wall surface of the terminal slot, the front end of the snap-fitting portion being arranged at the front end of the terminal slot, the "Z"-shaped snap-fitting portion being snapped into the retaining wall of the terminal slot of the insulating body, which can effectively prevent the front end of the terminal of the electrical connector from warping after high-temperature welding, and the front end contact portion of the conductive terminal being designed as a tapered terminal contact surface, which can effectively reduce the capacitance effect, reduce signal interference to a minimum, and thereby obtain a higher quality transmission effect.

Description

Improved structure of electrical connector

technical field

The utility model relates to the field of electrical connectors, in particular to an improved structure of an electrical connector connected to a storage device.

Background technique

Computer peripherals such as portable hard disks, portable memory cards, or external optical discs are mostly connected to computers through external transmission standards such as USB and IEEE1394. Among them, the most widely used transmission standard is USB2.0, and almost all computer peripherals have USB2.0 connector, the current upper limit of the transmission speed of the USB2.0 specification is 480Mbps, but this transmission speed can no longer meet the data transmission requirements of high-speed devices such as external hard drives.

In order to provide a higher data transmission speed, someone has formulated a new high-speed external transmission specification, namely eSATA. This new external transmission specification can increase the transmission speed to 3Gbps. Give full play to the limit of its own transmission speed.

However, eSATA-style connectors generally adopt an assembly method or an electrical connector terminal structure in which terminals are embedded. The front end of the contact part of the conductive terminal is mostly designed with a flat structure, and the front end of the conductive terminal and the insulator body matching terminal groove is also a flat structure. During the welding process between the electrical connector and the circuit board, the insulating body after high temperature will expand to a certain extent due to the high temperature, resulting in loosening of the terminal groove and the front end of the conductive terminal. The electrical connector is supported by the supporting force during the welding process. The front end of the conductive terminal produces a warped PIN defect, which affects the quality of the electrical connector product and increases unnecessary inspection procedures. In addition, the contact end surface of the conductive terminal is the same width as the end surface of the holding part, and the holding part achieves a more stable fixing effect. Generally, the end surface is wider. If the contact surface of such electrical connector terminals is too large, it will produce too strong a capacitive effect, which is likely to cause signal interference and affect Transmission speed of electrical connectors.

Therefore, in view of the above problems, it is necessary to improve the design of the existing eSATA electrical connectors to solve the above problems.

Utility model content

The main purpose of this utility model is to improve the defects of the above-mentioned existing eSATA electrical connectors, and provide a new type of electrical connector to ensure that the front end of the electrical connector is not prone to pin warping after high temperature, and to obtain higher quality. transmission effect.

In order to achieve the above purpose, the utility model can be realized through the following technical solutions: the utility model provides an improved structure of an electrical connector, which includes an insulating body and a plurality of conductive terminals held in the insulating body, and the insulating body has a side wall And a tongue protruding forward along the front end of the side wall, the tongue is arranged with a number of terminal slots, the conductive terminal includes a holding part, a buckling part and a connecting part, and the buckling part has a "Z" shape structure , the conductive terminal is accommodated and fixed in the terminal slot, and the top wall of the front end of the terminal slot is extended with a clamping wall. Prevent the front end of the terminal from becoming warped after the electrical connector is soldered at high temperature.

As a preferred solution, one end of the holding part of the conductive terminal has a first horizontal part extending toward the terminal slot, and the first horizontal part protrudes forward and is provided with a tapered second horizontal part and is connected with the buckle part .

As a preferred solution, the other end of the holding portion of the conductive terminal has a first transition section extending toward the side wall, and the first transition section is bent to form a second transition section connected to the connecting portion.

As a preferred solution, the clamping wall extends from the upper edge of the top wall at the front end of the terminal slot to the side wall of the insulating body.

As a preferred solution, it further includes a foot fixing device for fixedly installing the electrical connector, and the foot fixing device is accommodated and fixed on both sides of the side wall of the insulating body.

As a preferred solution, the two sides of the insulating body are provided with insertion slots for the foot fixing device, the foot fixing device has a mounting part for the insertion slot, the front end of the mounting part has a guide part, and a There is a shrapnel, and the lower side edge of the installation part protrudes out of the insulating body to form a fork-position holding foot.

Compared with the prior art, the improved structure of the electrical connector provided by the utility model has the following beneficial effects: the terminals are folded into the insulating body in a Z-shaped structure, which can effectively prevent the terminals in the prior art from being easily Poor PIN phenomenon occurs; at the same time, the tapered terminal contact surface design can effectively reduce the capacitive effect and minimize signal interference compared with the one-piece terminal contact surface design in the prior art, so as to obtain higher quality. transmission effect.

Description of drawings

Fig. 1 is a perspective view of an electrical connector of a specific embodiment of the present invention;

Fig. 2 is an exploded view of an electrical connector according to a specific embodiment of the present invention;

Fig. 3 is a perspective view of another viewing angle of the electrical connector of the specific embodiment of the present invention;

Figure 4 is a schematic plan view of Figure 3; and

Fig. 5 is a sectional view along the direction A-A of Fig. 4 .

Explanation of reference numbers:

10-Electrical connector 1-Insulation body

11-Tongue 111-Terminal slot

12-side wall 121-limiting groove

13-socket slot 131-installation slot

132-fastening groove 14-mounting surface

15-Clamping wall 2-Conductive terminal

21-Holding Department 211-First Level Department

212-Second level part 22-Buckle part

213-First transition section 214-Second transition section

23-connection part 3-pin fixing device

31-Installation Department 311-Guide Department

312-shrapnel 32-fork holding foot

Detailed ways

In order to make the above purpose and structural features of the present utility model more clear to those familiar with the technology, the structure of the present utility model will be further described with a specific embodiment in conjunction with the accompanying drawings.

Please refer to FIG. 1 and FIG. 3 , which are the specific structure of the electrical connector 10 of the present invention, including an insulating body 1 , a plurality of conductive terminals 2 and a pin fixing device 3 installed and fixed on a circuit board.

The insulating body 1 has a side wall 12 and a tongue 11 protruding forward from the side wall 12 , and a plurality of terminal grooves 111 are arranged on the tongue 11 . The side wall 12 is provided with a plurality of limiting grooves 121, which correspond to the aforementioned terminal grooves 111, and the conductive terminals 2 are assembled into the terminal grooves 111 from the side wall 12, and the limiting grooves The slot 121 restricts the positioning of the conductive terminal 2 and plays a more convenient role in assembly.

Both sides of the side wall 12 of the insulating body 1 are provided with an insertion groove 13 for inserting and fixing the foot position fixing device 3 , the insertion groove 13 penetrates the mounting surface 14 of the insulating body 1 , and the insertion groove 13 There is a mounting groove 131 and a fastening groove 132 , and the fastening groove 132 is located on one side of the mounting groove 131 . The foot fixing device 3 is assembled forward from the direction of the side wall 12. The foot fixing device 3 has a mounting part 31 with a mounting groove 131. The front end of the mounting part 31 is provided with a guide part 311 for easy assembly. Through the guide part 311 Fast assembly can be achieved. The mounting portion 31 is flushed with a retaining elastic piece 312 into the engaging groove 132 to ensure a stable combination of the foot fixing device 3 and the insulating body 1 . A fork holding foot 32 protrudes from the lower edge of the installation portion 31 toward the installation surface 14 , and the fork holding foot 32 keeps the electrical connector 10 positioned and fixed on the circuit board.

As shown in FIG. 4 , the conductive terminal 2 has a holding portion 21 fixed in the terminal groove, a buckling portion 22 and a connecting portion 23. The holding portion 21 is extended to one end of the terminal groove 111 with a first horizontal portion 211. The first horizontal portion 211 maintains the same width as the holding portion 21. The first horizontal portion 211 extends forward to form a tapered second horizontal portion 212. The front side of the second horizontal portion 212 is formed with a zigzag bend. The other end of the retaining portion 21 extends away from the tongue plate 11 and is provided with a first transition section 213 and a second transition section 214 bent downward through the first transition section 213. The second transition section 214 Cooperate with the limiting groove 121 and connect with the connection part 23 , the connection part 23 is welded on the circuit board to realize the signal transmission of the electrical connector 10 .

As shown in Figure 5, the conductive terminal 2 is assembled into the terminal groove 111 from the side wall 12, and the upper edge of the top wall of the front end of the terminal groove 111 protrudes toward the direction of the side wall 12, and a clamping wall 15 is provided. The "Z" of the conductive terminal 2 The "shaped buckling part 22 is abutted on the clamping wall 15, and the clamping wall 15 is used to limit the conductive terminal 2. The terminal is prone to warping due to the high temperature of the electrical connector 10, which effectively improves the welding of the electrical connector 10 during the manufacture. Due to the defects caused by high temperature, the quality of electrical connectors has been improved.

The key point of the design of this utility model is that it is mainly that the conductive terminal is provided with a "Z"-shaped fastening part at the extension end of the terminal groove, and the upper edge of the top wall of the terminal groove is provided with a clamping wall of the fastening part to limit the front end of the terminal after high temperature. The warped PIN phenomenon improves the straight-wall defects of traditional terminals; in addition, the terminal contact surface is tapered in the contact direction of the conductive terminal, which can effectively reduce the capacitive effect and minimize signal interference, thereby achieving higher quality transmission effect.

The above is only a preferred embodiment of the structure of the utility model, and does not limit the technical scope of the utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model , all still belong to the scope of the technical solution of the utility model.

Claims (6)

1. An improved structure of an electrical connector, which includes an insulating body and a plurality of conductive terminals held in the insulating body. The insulating body has a side wall and a tongue protruding forward along the front end of the side wall. The tongues are arranged There are several terminal grooves, and the conductive terminal includes a holding part, a buckling part and a connecting part, and is characterized in that: the buckling part has a "Z" shape structure, and the conductive terminal is accommodated and fixed in the terminal groove, and the terminal A clamping wall is extended from the top wall of the front end of the slot, and the "Z"-shaped fastening part is buckled into the clamping wall at the front end of the terminal slot of the insulating body. 2. The improved structure of the electrical connector according to claim 1, wherein a first horizontal portion extends from one end of the conductive terminal holding portion toward the terminal groove, and the first horizontal portion extends forward and is provided with a tapered The second horizontal part is also connected with the fastening part. 3. The improved structure of the electrical connector according to claim 2, wherein the other end of the holding portion of the conductive terminal has a first transition section extending toward the side wall, and the first transition section is bent to form a second transition section. The transition section is connected with the connection part. 4. The improved structure of the electrical connector according to claim 1, wherein the clamping wall extends from the upper edge of the top wall at the front end of the terminal slot to the side wall of the insulating body. 5 . The improved structure of the electrical connector according to claim 1 , further comprising a pin fixing device for fixing the electrical connector, and the pin fixing device is accommodated and fixed on both sides of the side wall of the insulating body. 6. The improved structure of the electrical connector according to claim 5, characterized in that: the two sides of the insulating body are provided with insertion slots for the foot fixing device, and the foot fixing device has a mounting part for the insertion slot, The front end of the installation part has a guide part, and an elastic piece is arranged on the installation part, and the lower side edge of the installation part protrudes out of the insulating body to form a fork holding leg.

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