CN204834948U - electrical connector - Google Patents

Abstract

The utility model provides an electric connector, which is composed of a plug and a socket which can be mutually butted, and are respectively assembled on different circuit boards, wherein one end of the socket is provided with a slot, the other end of the socket is provided with a plurality of terminal slots for a row of U-shaped first terminals to be inserted and extend into the slot, a row of U-shaped second terminals are arranged on the plug in a crossing way, when the plug is inserted into the slot of the socket, the second terminals of the plug are clamped and contacted with the first terminals of the socket to achieve telecommunication connection, because the plug and the socket are respectively provided with a single row of first terminals and a single row of second terminals, and the welding parts of the first terminals and the second terminals are close to the position of the circuit board, and are directly extended and abutted against the circuit board with the shortest distance, thereby simplifying the terminal modeling, further effectively reducing the volume of the electric connector, and providing a plurality of clamping contact points through the mutual superposition of the U-shaped first terminals, thereby maintaining the stability of the plug and the socket after butt joint so as to ensure the stability of the transmission signal.

Description

electrical connector

technical field

The utility model relates to a board-to-board (board-to-board) connector, in particular to a structural design of an electrical connector capable of reducing the volume and simplifying the process.

Background technique

The currently known electrical connector combination structure includes a plug and a socket, which are respectively arranged on two separate circuit boards. The plug and the socket are respectively provided with two rows of terminal groups. Through the butt joint of the plug and the socket, The terminal groups fixed in the plug and the socket are made to contact with each other, so that the electronic components on the two circuit boards are electrically connected.

US Patent Nos. 5,931,689, 5,842,875, 5,830,018, 5,639,248, 5,626,500, and 5,599,192 all disclose the background technology of board-to-board connectors. These board-to-board connectors include a socket containing two rows of first terminals and a plug containing two rows of second terminals. For electrical connection, the long straight first terminal must have sufficient length to be installed in the plug, so the height of the plug cannot be effectively reduced, which is not conducive to the miniaturization of the connector.

U.S. Patent No. 5975916 designed a low-profile board-to-board connector for the above-mentioned lack. The two rows of first terminals of the patented socket are shaped as S-shaped and match the U-shaped contact part at the end, and the two rows of second terminals of the plug contact The part is also U-shaped, and the two U-shaped contact parts are electrically connected after the plug and the socket are matched. However, although this design has the advantages of low height and thinness, the plug and socket have two rows of first terminals and second terminals respectively, and the terminals of the socket are designed to be curved. Not only the process is complicated, but also the In order to provide elastic displacement space for these curved contact parts, the volume of the socket cannot be reduced.

With the development of science and technology, the fixed-point electronic devices in the past have gradually developed into mobile ones, such as smart phones, tablet computers, smart watches, etc. Due to the continuous increase in the functions of these devices, the packaging density of electronic components installed on the circuit board is also increasing. With the increase, the appearance of electronic devices tends to be miniaturized. Therefore, not only the size of the connector needs to be reduced, but also the stability of the connector after docking and the correctness of telecommunication transmission must be ensured after the size of the connector is reduced. In the increasingly complex circuit layout and increasing functionality, the stability of the product structure and the convenience of use are also urgently needed. If there are suitable and practical components, the following positive benefits can be obtained:

1. Miniaturize the volume of the product and make it easy to carry.

2. Simplify the manufacturing process, thereby reducing the manufacturing cost.

3. Maintain signal stability.

Utility model content

Therefore, the main purpose of the present invention is a connector that can be installed on a circuit board for high-speed signal transmission, and has the advantages of miniaturization, so that it can be applied to various electronic devices.

Another purpose of the present invention is to simplify the process, reduce the mold making, and further reduce the manufacturing cost.

In order to achieve the above purpose, the utility model provides an electrical connector, which is composed of plugs and sockets that can be docked with each other. They are fixed and assembled on different circuit boards with positioning columns. One end of the socket has a slot, and the other end of the socket A row of U-shaped first terminals can be inserted, and a row of U-shaped second terminals are straddled on the plug. The welding parts of the first terminals and the second terminals are directly extended to the circuit board by the shortest distance from each terminal. The welding part of the first terminal is formed by increasing the thickness of the outer side of one arm of the first terminal, and the welding part of the second terminal is formed by extending the ends of the two arms of the second terminal. When the plug is inserted into the slot of the socket, the two arms on the first terminal clamp and contact the two arms on the second terminal to achieve a telecommunication connection.

Compared with the known technology, the utility model is only provided with a single row of first terminals and second terminals on the plug and socket of the electrical connector for butt-connection, so compared with the electrical connection with two rows of terminals device, the manufacturing cost of the electrical connector of the present utility model is relatively low, and the first and second terminals of the present utility model are U-shaped design, and each terminal is connected with the soldering part of the circuit board, only by each terminal closest to The part of the circuit board is directly extended and affixed to the circuit board with the shortest distance, without unnecessary bending design, so the socket does not need to reserve elastic displacement space, so the volume of the electrical connector of the utility model can naturally be miniaturized. Furthermore, after the plug and the socket are docked, the two circuit boards on the plug and the socket are arranged vertically, the U-shaped first and second terminals can be stacked, and the two arms of the U-shaped first terminal can clamp and contact the second terminal. The two arms provide several snapping contact points. The outer side of the first terminal has a snapping part to correspond to the snapping part on the inner side of the second terminal, thereby ensuring the stability of the connector after docking and the correctness of telecommunication transmission. , but for mobile devices.

In order to further understand the features and technical contents of the present utility model, please refer to the following detailed description and accompanying drawings of the present utility model. However, the attached drawings are only for reference and illustration, and are not intended to limit the present utility model.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the utility model.

Fig. 2 is a schematic diagram of assembly of the utility model.

Fig. 3 is another perspective view of assembly of the present utility model.

Fig. 4 is a combined sectional view of the utility model.

Reference number

1 socket

11 slots

12 terminal slot

13 first terminal

130 arms

131 engaging part

132 welding department

14 positioning column

2 plugs

21 terminal slot

22 second terminal

220 arms

221 engaging part

222 welding department

23 positioning column

A, B circuit board

Detailed ways

Fig. 1 is a three-dimensional exploded view of the utility model, and together with reference to other figures, it can be seen clearly from the figure that the utility model is mainly composed of a plug 2 and a socket 1 that can be docked with each other, and they are assembled separately Telecommunication connections are provided on different circuit boards A and B (as shown in Figure 4), wherein the socket 1 is made of an insulating material, and one end of the socket 1 has a slot 11 (as shown in Figure 3) for corresponding insertion of the plug 2, The other end of the socket 1 is provided with a plurality of U-shaped terminal slots 12 along both sides of the socket 1 to communicate with the aforementioned slots 11. The plurality of terminal slots 12 can be inserted into a row of multiple first terminals 13 correspondingly. A terminal 13 is U-shaped by metal stamping and has two arms 130. When the first terminal 13 is inserted into the terminal slot 12, the two arms 130 on the first terminal 13 can protrude into the slot 11 , the two arms 130 are provided with engaging parts 131 inside, one of the arms 130 is provided with a welding part 132 outside, and the outside of the socket 1 has a positioning column 14 for fixing on the circuit board A.

The plug 2 is made of insulating material, and the opposite sides of the plug 2 are respectively provided with a plurality of terminal slots 21 in a row at intervals, for reversely inserting a row of a plurality of second terminals 22, the second terminals 22 are made of metal stamping and cutting U-shaped, and has two arms 220, the two arms 220 of the second terminal 22 can be embedded in the terminal groove 21, so that the second terminal 22 straddles the plug 2 (as shown in Figure 2), the second The two arms 220 of the terminal 22 are provided with engaging portions 221 , and the ends of the two arms 220 are extended with welding portions 221 .

Fig. 4 is a combined cross-sectional view of the utility model, because the socket 1 and the plug 2 of the utility model electrical connector are used to electrically connect two circuit boards A and B at a vertical angle, so a row of U in the socket 1 is used. The U-shaped first terminal 13 is assembled on the circuit board A in a horizontal manner, and a row of U-shaped second terminals 22 in the plug 2 is assembled on the circuit board B in an upside-down manner, so that a circuit board A with the socket 1 is installed, When electrically connecting with another circuit board B on which the plug 2 is installed, the two circuit boards A and B can be arranged at a vertical angle. If two circuit boards A and B are to be electrically connected in a horizontal manner, as long as the U-shaped first terminal 13 in the socket 1 is changed to be vertically arranged on the circuit board A, the two circuit boards A and B can be at a horizontal angle configuration.

After the plug 2 is docked with the socket 1, the left and right arms 130 of the first terminal 13 on the socket 1 can clamp the left and right arms 220 of the second terminal 22 on the contact plug 2, and make the two arms 130 of the first terminal 13 The inner engaging portion 131 is correspondingly engaged with the outer engaging portion 221 of the two arms 220 of the second terminal 22 (as shown in FIG. 4 ), so the first terminal 13 and the second terminal 22 not only have two electrical contact points, but also It can ensure the stability of the mated connectors and the correctness of telecommunication transmission, and can be adapted to mobile devices.

In addition, since the first terminal 13 in the socket 1 is assembled on the circuit board A in a horizontal manner, the welding part 132 of the first terminal 13 is from the outer side of the support arm 130 closest to the circuit board A to the direction of the circuit board A. It is formed by directly increasing the thickness, so that the welding portion 132 of the first terminal 13 directly extends and sticks to the circuit board A at the shortest distance, without unnecessary bending design. The second terminal 22 on the plug 2 is assembled on the circuit board B in an upside-down manner, so the welding portion 222 of the second terminal 22 is formed by extending the ends of the two arms 220 of the second terminal 22 toward the direction of the circuit board B. In this way, the soldering part 222 of the second terminal 22 directly extends and sticks to the circuit board B at the shortest distance, without unnecessary bending design, so the plug 2 does not need to reserve elastic displacement space, so the volume of the electrical connector of the present invention is naturally Can be miniaturized.

As mentioned above, in the electric connector of the present invention, the soldering part connected to the circuit board for each terminal is only the part closest to the circuit board of each terminal, which directly extends and sticks to the circuit board with the shortest distance, without unnecessary bending. Because of the folding design, there is no need to reserve elastic displacement space for the plug and the socket, so the volume of the electrical connector of the utility model can naturally be miniaturized. Furthermore, after the plug and the socket are docked, the U-shaped first and second terminals can be superimposed, and the two arms of the first terminal can clamp and contact the two arms of the second terminal to provide several engaging contact points, thereby ensuring The stability of the connector after docking and the correctness of telecommunication transmission, so it is simpler and more convenient than the known structure in terms of function and assembly, but it has not been used in public, which is in line with the provisions of the patent law, so it is legally It is really convenient to file a patent application for a new model and ask for the grant of a patent.

Claims (6)

1. An electrical connector, characterized in that the electrical connector is composed of plugs and sockets respectively assembled on different circuit boards: A plug that can be installed on a circuit board. The opposite sides of the plug are respectively provided with a plurality of terminal grooves in rows at intervals, so that a row of multiple second terminals can be straddled on the plug. The second terminals are in the form of U-shaped and has two arms, the second terminal protrudes with a welding portion to stick to the circuit board, and the welding portion is directly extended to the circuit board by the shortest distance from the second terminal straddling the plug; A socket that can be installed on another circuit board, one end of the socket has a slot for the plug to be inserted into, and the other end of the socket is provided with a plurality of terminal slots in rows along both sides to communicate with the slot The terminal groove can be configured correspondingly with a plurality of first terminals in a row. The first terminal is U-shaped and has two arms. The first terminal protrudes with a welding part to stick to the circuit board. extending directly from the first terminal to the circuit board with the shortest distance; After docking the plug and socket, the two arms of the first terminal clamp and contact the two arms of the second terminal. 2 . The electrical connector according to claim 1 , wherein the plug and the socket respectively have positioning posts for fixing on the circuit board. 3 . 3 . The electrical connector according to claim 1 , wherein the outer side of the first terminal has an engaging portion for correspondingly engaging the engaging portion on the inner side of the second terminal. 4 . 4. The electrical connector according to claim 1, wherein the welding portion of the first terminal is formed by increasing the thickness of the outer side of an arm of the first terminal. 5 . The electrical connector according to claim 1 , wherein the welding portion of the second terminal is formed by extending the ends of two arms of the second terminal. 6 . The electrical connector according to claim 1 , wherein after the plug and the socket are connected, the two circuit boards on the plug and the socket are arranged vertically. 7 .