CN203398376U - Terminal of a board-to-board connector - Google Patents

Abstract

The utility model relates to a terminal of a board-to-board connector; it comprises a first terminal and a second terminal matched therewith, wherein the first nickel layer portion of the first terminal and the second nickel layer portion of the second terminal can effectively improve the occurrence of undesirable phenomena such as tinning during the welding process of the board-to-board connector, thereby improving the performance of the product and reducing the manpower and material costs increased due to rework of defective production; the first terminal forms a double-corrugated structure due to the mounting portion and the elastic portion, so that the contact portion has sufficient spring characteristics, which can effectively increase the holding force between the second terminal and the first terminal, and increase the performance of resistance to drop impact and resistance to distortion.

Description

Terminal of a board-to-board connector

technical field

The utility model relates to the technical field of components of a board-to-board connector, in particular to a terminal of a board-to-board connector.

Background technique

Board-to-board connector is a connector that is directly applied between PCB boards. Board-to-board connector is the connector product with the strongest transmission capacity among all connector product types. It is mainly used in power systems, communication networks, Financial manufacturing, elevators, industrial automation, medical equipment, office equipment, home appliances, military manufacturing and other industries; the structure of the board-to-board connector mainly includes a base and an insulating body that are interlocked up and down, and embedded in the base and the insulating body. metal terminals. The soldering part of the existing board-to-board connector is usually directly extended from the metal terminal body, so that defects such as soldering are prone to occur during soldering. Due to unreasonable structural design, the metal terminals of the existing board-to-board connector are easy to fall off from the base or the insulating body, or the terminals are separated from each other, resulting in damage to the board-to-board connector.

Utility model content

The purpose of this utility model is to overcome the above-mentioned shortcomings, and to provide a board-to-board connector terminal in which the connection between the metal terminal and the base or the insulating body is stable, and the welding part is not prone to tinning during welding.

In order to achieve the above object, the specific solution of the utility model is as follows: the terminal of the board-to-board connector includes a first terminal and a second terminal matched with the first terminal, and the first terminal includes a connecting portion arranged horizontally, The abutting portion bent upwards from one end of the connecting portion and the inverted U-shaped mounting portion extended upwards from the other end of the connecting portion, the mounting portion extends downwards with a first nickel layer portion, and the first nickel layer portion The first welding part is bent outwards; the free end of the abutting part is bent downwards to form an inverted U-shaped elastic part; the second terminal includes a second nickel layer part and a second nickel layer part Second weld.

Wherein, the two sides of the connection between the second nickel layer part and the second welding part protrude outward respectively, and the convex clips and the second nickel layer part form a first clip groove.

Wherein, the nickel plating thickness of the first nickel layer part and the second nickel layer part is 0.15 μm-0.5 μm.

Wherein, the lateral width of the first nickel layer portion and the lateral width of the second nickel layer portion are at least 0.3 mm.

Wherein, a reinforcing part is further provided at the connecting part of the connecting part and the mounting part, and first bumps respectively protrude from both sides of the reinforcing part.

Wherein, the connection between the reinforcement part and the installation part is arranged obliquely upward, and the connection between the reinforcement part and the installation part is provided with a second bump.

Wherein, the free end of the contact part extends upwards with a T-shaped card platform, and a second card slot is provided at the connection between the T-shaped card platform and the contact part.

The beneficial effect of the utility model is that: the first terminal includes a horizontally arranged connecting part, an abutting part bent upwards from one end of the connecting part and an inverted U-shaped mounting part bent upwards and extended from the other end of the connecting part , the mounting part extends downwards to have a first nickel layer part, and the first nickel layer part is bent outwards to extend a first welding part; the free end of the abutting part is bent downwards to extend an inverted U-shaped elastic part; the second The terminal includes a second nickel layer part and a second welding part extending from the second nickel layer part; the first nickel layer part and the second nickel layer part can effectively improve the soldering process of the board-to-board connector and other adverse phenomena, thereby improving product performance and reducing labor and material costs due to defective production and rework; the first terminal has a double corrugated structure due to the installation part and the elastic part, so that the contact part has sufficient spring characteristics and can Effectively increase the holding force between the second terminal and the first terminal, and increase the performance of resistance to dropping impact and twisting.

Description of drawings

Fig. 1 is a perspective view of a first terminal;

Figure 2 is a perspective view of the second terminal

Fig. 3 is a perspective view of another viewing angle of the second terminal

Fig. 4 is a front view when the first terminal and the second terminal are mated;

Explanation of reference numerals among Fig. 1 to Fig. 4:

1-first terminal; 11-connecting part; 11a-reinforcing part; 11b-first bump; 12-installation part; 12a-second bump; 13-first welding part; 13a-first nickel layer part ; 14-resting portion; 14a-elastic portion;

2-Second terminal; 21-Buckle part; 22-Contact part; 22a-Protruding post; 23-Second nickel layer part; 23a-Third bump; 23b-Bump; 24-Second welding part; 24a - convex card; 24b - first card slot; 25 - T-shaped card table; 25a - second card slot.

Detailed ways

The utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, and the scope of implementation of the utility model is not limited thereto. The utility model takes the direction of Fig. 4 as a reference direction.

As shown in Figures 1 to 4, the board-to-board connector terminal with a nickel-plated structure described in this embodiment includes a first terminal 1 and a second terminal 2 matched with the first terminal 1, the first terminal 1 includes a first nickel layer portion 13a and a first welding portion 13 extending from the first nickel layer portion 13a; the second terminal 2 includes a second nickel layer portion 23 and a first welding portion 13 extending from the second nickel layer portion 23 Two welding parts 24; the first terminal 1 and the second terminal 2 are snap-fitted to realize electrical connection; the nickel plating thickness of the first nickel layer part 13a and the second nickel layer part 23 is 0.15 μm-0.5 μm; The lateral width of the first nickel layer portion 13a and the lateral width of the second nickel layer portion 23 are at least 0.3mm; the first nickel layer portion 13a and the second nickel layer portion 23 can effectively improve the connection between the board-to-board connector During the welding process, undesirable phenomena such as tinning occur, thereby improving product performance and reducing labor and material costs due to defective production and rework.

Further, the first terminal 1 also includes a connecting portion 11 arranged horizontally, an abutting portion 14 bent upwards from one end of the connecting portion 11 and an inverted U-shaped portion bent upwards from the other end of the connecting portion 11. The installation part 12, one end of the installation part 12 is connected with the first nickel layer part 13a; the second terminal 2 also includes a U-shaped buckle and plug part 21, a contact part 22 connected to one end of the buckle and plug part 21, and the buckle and plug part 21 is another One end is connected to the second nickel layer part 23; the connection between the connecting part 11 and the mounting part 12 is also provided with a reinforcement part 11a, and the two sides of the reinforcement part 11a protrude respectively with arc-shaped first a bump 11b.

Further, the longitudinal width of the first nickel layer part 13a is larger than the longitudinal width of the mounting part 12 and the longitudinal width of the first welding part 13 respectively, and the large-area first nickel layer part 13a can increase the effect of preventing tin from sticking.

Further, the free end of the abutting portion 14 is bent downwards to extend an inverted U-shaped elastic portion 14a. The first terminal 1 has a double corrugated structure formed by the mounting part 12 and the elastic part 14a, so that the contact part has sufficient spring characteristics, which can effectively increase the holding force between the second terminal 2 and the first terminal 1, and increase resistance to drop shock and twist-resistant performance.

Further, the two sides of the connection between the second nickel layer part 23 and the second welding part 24 protrude outward respectively, and the convex cards 24a and the second nickel layer part 23 form a first card groove 24b ; The first slot 24b can increase the firmness between the terminal and the insulating body, so that the terminal is not easy to fall out from the insulating body.

Further, two parallel protrusions 22a protrude vertically from the end surface of the contact portion 22 away from the second nickel layer portion 23; when the second terminal 2 is inserted into the first terminal 1, the two protrusions 22a can be connected with the first A terminal 1 interferes; the connection between the reinforcing part 11a and the mounting part 12 is obliquely upward, and forms a second bump 12a, and the second bump 12a is aligned with the second Terminal 2 conflicts; two protrusions 22a and second bumps 12a form a unique three-contact structure design, which increases contact per unit area Compared with the previous design, the effect of removing flux and foreign matter is improved; in addition, it can also prevent foreign matter from being caught, and greatly improve the reliability of contact.

Further, the lower end of the second nickel layer part 23 protrudes to both sides with third bumps 23a; the free end of the contact part 22 extends upwards with a T-shaped card platform 25, and the lower ends of the two sides of the T-shaped card platform 25 A second clamping slot 25a is provided; the second clamping slot 25a can be clamped in the insulating body for installing metal terminals, which greatly increases the holding force between the second terminal 2 and the insulating body.

Further, a wedge-shaped protrusion 23b protrudes from an end surface of the second nickel layer part 23 away from the contact part 22; it plays a role of simple locking when the second terminal 2 is pulled out of the first terminal 1, thereby preventing the first terminal from The abnormal separation of 1 and the second terminal 2 enhances the contact reliability.

Further, the above-mentioned first terminal 1 and second terminal 2 are made of copper core, and a nickel layer is plated on the surface of the copper body, and then, the parts except the first nickel layer part 13a and the second nickel layer part 23 are plated on The gold layer, so the first nickel layer portion 13a and the second nickel layer portion 23 are partially exposed to the nickel layer.

The above is only a preferred embodiment of the utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the utility model patent application are included in the protection of the utility model patent application. within range.

Claims (7)

1. A terminal of a board-to-board connector, including a first terminal (1) and a second terminal (2) matched with the first terminal (1), characterized in that: the first terminal (1) It includes a connecting part (11) arranged horizontally, an abutting part (14) extending obliquely upward from one end of the connecting part (11), and an inverted U-shaped installation extending upward from the other end of the connecting part (11). part (12), the installation part (12) extends downwards with a first nickel layer part (13a), and the first nickel layer part (13a) bends outwards and extends out of the first welding part (13); the abutment part (14 ) The free end is bent downwards to extend an inverted U-shaped elastic part (14a); the second terminal (2) includes a second nickel layer part (23) and a second nickel layer part (23) extending from the second nickel layer part (23) Two welding parts (24). 2. The terminal of a board-to-board connector according to claim 1, characterized in that: the two sides of the connection between the second nickel layer part (23) and the second welding part (24) respectively protrude outward There is a protruding card (24a), and the protruding card (24a) and the second nickel layer part (23) form a first card groove (24b). 3. The terminal of a board-to-board connector according to claim 1, characterized in that: the nickel plating thickness of the first nickel layer part (13a) and the second nickel layer part (23) is 0.15 μm- 0.5 μm. 4. The terminal of a board-to-board connector according to claim 1, characterized in that: the lateral width of the first nickel layer part (13a) and the lateral width of the second nickel layer part (23) are at least 0.3mm. 5. The terminal of a board-to-board connector according to claim 1, characterized in that: a reinforcing part (11a) is also provided at the connection between the connecting part (11) and the mounting part (12) , first bumps (11b) protrude from both sides of the reinforcing part (11a). 6. The terminal of a board-to-board connector according to claim 1, characterized in that: the connection between the reinforcement part (11a) and the installation part (12) is arranged obliquely upward, and the reinforcement part (11a) and A second bump (12a) is provided at the connection of the installation part (12). 7. The terminal of a board-to-board connector according to claim 1, characterized in that: the free end of the contact part (22) extends upwards with a T-shaped card platform (25), and the T-shaped card platform (25) and The connection of the contact part (22) is provided with a second card slot (25a).

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