CN201126878Y - Terminal structure of electric connector - Google Patents

Abstract

A terminal structure of an electrical connector. Each terminal structure is provided with a first end part and a second end part extending from the first end part, the first end part is positioned in the insulating body, and the second end part is bent to the outer side of the insulating body along a direction from the first end part. Wherein, the direction and the extending direction of the first end part form a bending angle which is between 5 degrees and 35 degrees.

Description

Terminal structure of electrical connector

【Technical field】

The utility model relates to a terminal structure, in particular to a terminal structure of an electric connector.

【Background technique】

Generally speaking, an electrical connector is usually provided on the electronic device, and external lines such as network cables or audio cables can be plugged into the electrical connectors. FIG. 1 is a schematic diagram of a conventional electrical connector disposed on a circuit board. Please refer to FIG. 1, the electrical connector 110 is composed of an insulating body 112 and a plurality of terminal structures 114 assembled in the insulating body 112, and the electrical connector 110 is made by surface mount technology (Surface Mount Technology, SMT). The terminal structure 114 is electrically connected to a circuit board 120 . In more detail, a plurality of welding pads 122 are provided on the surface of the circuit board 120, and a solder 130 is provided on each welding pad 122, and the prior art uses surface mount technology to make the terminal structure 114 of the electrical connector 110 borrow The solder 130 is electrically connected to the pad 122 of the circuit board 120 , so that the electrical connector 110 is electrically connected to the circuit board 120 .

In the prior art, the terminal structure 114 is an L-shaped structure, and its bottom is a horizontal flap with a long bending length. The solder 130 has a larger contact area, and the electrical connector 110 can be firmly arranged on the circuit board 120 after the surface mount technique is performed.

However, since the bending length of the horizontal flap at the bottom of the terminal structure 114 is longer and the area of the flap is larger, the electrical connector 110 with multiple terminal structures is assembled on the circuit board 120 with limited space, which will consume too many circuits. The usable space of the board 120. In addition, the large area of the horizontal flaps will also lead to a large amount of solder 130 applied between the terminal structure 114 and the pad 122 , which does not meet the requirements of environmental protection. Moreover, when the terminal structure 114 is assembled into the insulating body 112, the electrical connector 110 is likely to have inconsistent flatness of the exposed terminal structure due to assembly tolerances (that is, the horizontal flaps of each terminal structure 114 do not on the same level). In this way, when the electrical connector 110 is arranged on the circuit board 120, there is likely to be a gap S between the part of the terminal structure 114 and the solder 130 (that is, the terminal structure 114 cannot be tightly connected to the solder 130 between the solder pads 122. connection), there is likely to be empty soldering between the terminal structure 114 and the welding pad 122 , resulting in that the electrical connector 110 cannot effectively form an electrical connection with the circuit board 120 .

【Content of utility model】

The utility model provides a terminal structure of an electric connector, which can be effectively electrically connected to a circuit board only by using a small amount of solder.

The utility model provides a terminal structure of an electric connector, which is suitable for being arranged on a circuit board with limited space.

The utility model provides a terminal structure of an electric connector, which can solve the problem of empty welding between the terminal structure and welding pads.

The utility model proposes a terminal structure of an electrical connector, which can be used as an electrical connection of an electronic device, which includes a first end and a second end extending from the first end, and the second end The first end is bent along a direction, wherein the direction forms a bending angle with the extending direction of the first end, and the bending angle is between 5° and 35°.

The above-mentioned electronic device of the present invention may further include a circuit board having a plurality of welding pads and a plurality of solders disposed on the welding pads.

Based on the above, the utility model is to make the second end of the terminal structure of the electrical connector bend along a direction from the first end, and the included angle between this direction and the extending direction of the first end is between 5 ° to 35°. In this way, when the electrical connector is arranged on the circuit board, the second end of the terminal structure can be easily connected with the solder on the welding pad, so that there is a good electrical connection between the electrical connector and the circuit board relation. In addition, because the utility model only uses part of the second end to connect with the solder, compared with the prior art that uses a horizontal flap with a longer bending length to connect with the solder, the utility model can effectively reduce the amount of solder. usage, and the electrical connector of the present utility model is also suitable for disposing on circuit boards with limited space.

【Description of drawings】

FIG. 1 is a schematic diagram of a conventional electrical connector disposed on a circuit board.

FIG. 2 is a schematic diagram of the application of the terminal structure of the electrical connector according to an embodiment of the present invention to an electronic device.

[Description of main component symbols]

110: Electrical connector 220: Solder

112: Insulation body 230: Electrical connector

114: Terminal structure 232: Insulation body

120: Circuit board 234: Terminal structure

122: welding pad 234a: first end

130: solder 234b: second end

200: Electronic device D1, D2: Direction

210: Circuit board S: Clearance

212: welding pad θ: bending angle

【Detailed ways】

In order to make the above-mentioned features and advantages of the present invention more comprehensible, preferred embodiments are specifically cited below, together with the accompanying drawings, and are described in detail as follows.

FIG. 2 is a schematic diagram of the application of the terminal structure of the electrical connector according to an embodiment of the present invention to an electronic device. Please refer to FIG. 2 , a common electronic device 200 includes, for example, a circuit board 210 and a plurality of solders 220 . In this embodiment, at least one surface of the circuit board 210 has a plurality of welding pads 212, and these solders 220 are respectively arranged on the corresponding welding pads 212, while the utility model provides an electrical connector 230 is arranged on The circuit board 210 is electrically connected to the circuit board 210 . Wherein, the terminal structure 234 of this embodiment is configured in the electrical connector 230 . Hereinafter, the present embodiment will detail the components of the electrical connector 230 and the connection relationship between the electrical connector 230 and the circuit board 210 .

Please continue to refer to FIG. 2 , the electrical connector 230 is mainly composed of an insulating body 232 and a plurality of terminal structures 234 of this embodiment. In this embodiment, each terminal structure 234 has a first end portion 234a and a second end portion 234b extending from one end of the first end portion 234a, the first end portion 234a is located in the insulating body 232, and an external The plug (not shown) is adapted to be inserted into the insulating body 232 and is in contact with the other end of the corresponding first end portion 234 a of the terminal structure 234 . In addition, the second end portion 234b is bent from one end of the first end portion 234a along a direction D1 to extend out of the insulating body 232 . Wherein, the direction D1 and the extending direction D2 of one end of the first end portion 234a enclose a bending angle θ, and the bending angle θ is, for example, between 5° and 35°.

It is worth mentioning that since the second end portion 234b of the terminal structure 234 is bent from the first end portion 234a to the outside of the insulating body 232 along the direction D1, and the bending angle θ is between 5° and 35° , rather than the nearly 90° vertical type of the prior art. Therefore, when the electrical connector 230 is disposed on the circuit board 210 by surface mount technology, the second end portion 234 b of the terminal structure 234 can easily contact the solder 220 on the pad 212 . More specifically, since the second end portion 234b is bent from the first end portion 234a to the outside of the insulating body 232 along the direction D1, and the direction D1 will intersect with the surface of the circuit board 210 (that is, the direction D1 is not a horizontal direction). Therefore, during the process of disposing the electrical connector 230 on the circuit board 210 , a part of the second end portion 234 b of the terminal structure 234 can easily contact the solder 220 on the pad 212 . In this way, the electrical connector 230 can be effectively electrically connected to the circuit board 210 . Moreover, some dimensional tolerances can be overcome by the smaller bending angle θ, so that the electrical connector 230 can be more reliably arranged on the circuit board 320 without being affected by the flatness of the overall electrical performance.

To sum up, in the present invention, the second end of the terminal structure of the electrical connector is bent along a direction from the first end, and this direction is bent with the extending direction of the first end. angle, and the bending angle is between 5° and 35°. Therefore, when the electrical connector is arranged on the circuit board, the second end bent from the first end out of the insulating body can easily contact the solder on the welding pad. Compared with the prior art, the utility model has the following advantages:

(1) In the present utility model, since the direction in which the second end of the terminal structure is bent from the first end intersects with the surface of the circuit board (the second end of the present utility model is not a horizontal flap), Therefore, when the electrical connector is arranged on the circuit board, the second end of each terminal structure can easily contact the solder on the pad, thereby effectively improving the unevenness of the existing electrical connector due to the unevenness of the terminal structure. This leads to the problem of empty soldering between the terminal structure and the pad. In other words, the terminal structure of the present invention can be effectively electrically connected to the circuit board.

(2) Since the terminal structure of the present invention only needs to use part of the second end to contact the solder, compared with the prior art, the horizontal fold with a longer bending length is used to contact the solder. It can effectively reduce the amount of solder used to meet stricter environmental protection requirements.

(3) Since the terminal structure of the present invention only needs to use part of the second end to contact the solder, compared with the prior art, the horizontal flap with a longer bending length is used to connect with the solder. The advanced terminal structure is suitable for disposing on circuit boards with limited space to meet the gradually shrinking product size requirements.

Although the utility model has been disclosed above with preferred embodiments, it is not intended to limit the utility model. Any person with ordinary knowledge in the technical field may make some modifications without departing from the spirit and scope of the utility model. Change and retouching, so the scope of protection of the present utility model should be defined by the scope of the attached patent application as the criterion.

Claims (1)

1. connector terminals structure, this electric connector and an electronic installation form and electrically connect, and this connector terminals structure comprises:

One first end and extension are from a second end of this first end, and this second end bends along a direction from this first end, it is characterized in that: the bearing of trend of this direction and this first end presss from both sides a bending angle, and this bending angle is between 5 ° to 35 °.

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