CN201112742Y - electrical connector terminal - Google Patents

Abstract

An electric connector terminal, from the top to the bottom, is stored inside the insulating body of an electric connector to provide the electrical connection between a chip module and a circuit board. The electric connector terminal comprises a base and arm parts. The base consists of a main body, a holding part and a welding part, and the holding part is provided thereon with a reinforcement part. The arm parts extend out of the opposite side edges of the main body.

Description

electrical connector terminal

【Technical field】

The utility model relates to an electric connector terminal, in particular to an electric connector terminal for electrically connecting a chip module to a circuit board.

【Background technique】

Existing electrical connector terminals for electrically connecting chip modules and circuit boards generally include a body, a terminal arm extending from the body, a contact portion extending from the terminal arm to electrically connect the chip module, and a terminal arm extending from the body. Extend the solder joints corresponding to the electrical conductors on the circuit board. The terminal arm part includes an extension arm extending from the body and a connecting arm connecting the extension arm and the contact part. When in use, the pins of the chip module are inserted into the receiving cavity surrounded by the terminal arm, and cooperate with the contact portion of the conductive terminal, so as to realize the electrical connection between the conductive terminal, the chip module and the circuit board.

As shown in US Pat. No. 6,319,038, an electrical connector terminal 1 includes a body 12 , a pair of terminal arm portions 20 extending from two sides of the body 12 , and a welding portion 14 located at the bottom of the body 12 . The terminal arm portion 20 includes an upper arm 21 extending from the main body 12 and a forearm 25 connecting the upper arm 21 and the contact portion 27 . A holding portion is provided below the main body 12 near the welding portion, and a barb 121 is provided on the holding portion. However, with the miniaturization and high-density development trend of electrical connectors, the spacing between electrical connector terminals is getting smaller and smaller. If the terminal arm is shortened, it will affect the elastic force of the terminal and affect the combination with the chip module. , so in order to maintain the elastic force of the terminal, the extension arm of the terminal arm must be extended downward to lengthen the length of the terminal. However, this will affect the design space of the barb on the holding part, thereby affecting the contact between the terminal and the insulating body when inserted into the insulating body. The holding force between the terminals affects the electrical connection between the terminal and the chip module.

Therefore, it is necessary to design an electrical connector terminal that can overcome the above defects.

【Content of utility model】

The technical problem to be solved by the utility model is to provide an electrical connector terminal which can enhance the holding force of the terminal.

In order to solve the above problems, the utility model adopts the following technical solution: an electrical connector terminal is accommodated in the insulating body of the electrical connector from top to bottom, and can provide an electrical connection between the chip module and the circuit board, which includes The base body and the terminal arm portion, the base body includes a main body, a holding portion and a welding portion, the holding portion is provided with a reinforcing portion, and the terminal arm portion extends from the opposite side of the body.

Compared with the prior art, the electronic card connector of the present utility model has the following beneficial effects: the electrical connector terminal is provided with a trapezoidal reinforcing part on the holding part, which strengthens the root structure of the barb, improves the supporting force of the barb, and enhances the strength of the barb. The holding force of the terminals of the electrical connector held in the insulating body prevents the terminals from being damaged when they are assembled into the insulating body of the electrical connector from top to bottom. Moreover, the trapezoidal structure of the reinforcing part can fully provide space for the extending arm of the electrical connector terminal to extend downward, so that the extending arm will not interfere with the holding part, thereby ensuring the design and holding function of the barb.

【Description of drawings】

Fig. 1 is a perspective view of a terminal of the electrical connector of the present invention.

Fig. 2 is a perspective view of another angle of the terminal of the electrical connector of the present invention.

Fig. 3 is a front view of a terminal of the electrical connector of the present invention.

【Detailed ways】

Please refer to Figures 1 to 3, the electrical connector terminal 1 of the present invention is mainly used to electrically connect the chip module (not shown) to the circuit board (not shown), the electrical connector terminal 1 includes a base body 10 And a pair of terminal arm parts 20 integrally connected with the base body 10 .

The base 10 includes a main body 11 , a main body head 12 extending upward from the main body 11 , a holding portion 13 extending downward from the main body 11 , and a welding portion 14 horizontally extending from the bottom of the main body 12 . The main body head 12 is provided with a groove 120 , and the groove 120 is provided with a connecting portion 121 connected with a material belt (not shown) on both sides. The main body head 12 is also provided with a barb 122 protruding outward from the connecting portion 121 . The retaining portion 13 is provided with a barb 132 protruding outward, a guiding portion 131 extending obliquely downward from the barb 132 inward, and a trapezoidal reinforcing portion 133 extending upward from the barb 132 . A groove 134 is provided below the holding portion 13 close to the body 11 to lengthen the length of the guiding portion 131 . The function of the barbs 122, 132 is to increase the holding force between the electrical connector terminal 1 when it is installed into the insulating body (not shown) of the electrical connector (not shown), and the trapezoidal reinforcement part 133 strengthens the inverted The root structure of the thorns 132 improves the supporting force of the barbs 132, enhances the holding force, and avoids being damaged during assembly.

The terminal arm 20 includes an extension arm 21 extending from opposite sides of the body 11 , a contact portion 24 located at a free end of the terminal arm 20 , and a connecting arm 23 connecting the extension arm 21 and the contact portion 24 . The extension arm 21 extends from below and is connected to the connecting arm 23 through the elbow 22 . The contact portion 24 is a functional area for connecting the chip module. Pins of the chip module are inserted into the receiving space formed by the terminal arm portion 20 and are electrically connected to the contact portion 24 .

The retaining part 13 of the electric connector terminal 1 of the present utility model is provided with a trapezoidal reinforcing part 133 extending upward above the barb 132, which strengthens the root structure of the barb 132, improves the supporting force of the barb 132, and strengthens the electrical connector. The holding force of the terminal held in the insulating body prevents the terminal 1 from being damaged when assembled into the insulating body of the electrical connector from top to bottom. In addition, with the miniaturization and high-density development trend of electrical connectors, the distance between the terminals of the electrical connector is getting smaller and smaller. In order to maintain the elastic force of the terminals, the elbow 22 at the end of the extension arm 21 must be downward. Extend to lengthen the length of the terminal and provide sufficient flexibility of the terminal arm. The trapezoidal structure of the reinforcement part 133 of the present invention can fully provide the space for the extension arm of the electrical connector terminal to extend downward, so the extension arm will not interfere with the holding part , so as to ensure the design and holding function of the barb. When assembling, the electrical connector terminal 1 is guided by the guide part 131 on the holding part 13 and inserted into the insulating body from top to bottom, and by applying a pressing force to the chip module, the pins of the chip module are opened for electrical connection. At this time, the extension arm 21 of the electrical connector terminal 1 produces elastic deformation and expands outward, so that the pin is inserted into the receiving space formed by the terminal arm portion 20 with a low insertion force, and the conductor of the chip module is inserted into the electrical connector. The pair of contact parts 24 of the connector terminal 1 are behind and cooperate with each other, the barb 122 of the body head 12 and the barb 132 of the holding part 13 provide the holding force between the electrical connector terminal and the insulating body, and the trapezoidal reinforcement The part 133 further strengthens the holding force of the barb 132 in the insulating body, avoiding the damage of the terminal 1 during assembly, so as to achieve a stable electrical connection between the terminal 1 of the electrical connector and the chip module, and finally solder the welding part 14 to the printed circuit board .

Claims (8)

1. An electrical connector terminal, housed in the insulating body of the electrical connector from top to bottom, can provide electrical connection between the chip module and the circuit board, it includes a base body and a terminal arm, the base body includes a body, a holding part and welding part, the terminal arm part extends from the opposite side of the main body, and the feature is that a reinforcing part is provided on the holding part. 2. The electrical connector terminal according to claim 1, wherein the reinforcing portion is trapezoidal. 3. The electrical connector terminal according to claim 1 or 2, wherein the holding portion is provided with a barb protruding outward and a guiding portion extending obliquely downward from the barb. 4. The electrical connector terminal according to claim 3, wherein the reinforcing portion extends upward from the barb. 5 . The electrical connector terminal according to claim 1 , wherein a groove is provided under the holding portion. 6 . 6. The electrical connector terminal according to claim 1, wherein the terminal arm is provided with an extension arm extending downward from the side of the main body, a connection arm connected to the extension arm, and a contact portion provided at the end of the connection arm . 7. The electrical connector terminal according to claim 6, wherein the extension arm, the connecting arm and the contact portion are connected together to form a "Z" shape. 8. The electrical connector terminal according to claim 1, characterized in that: the body is provided with a body head upward, and the body head includes a groove, connecting parts arranged on both sides of the groove and protruding outward from the connecting part Stretched barbs.

Images