CN217387552U

CN217387552U - Electrical connector

Info

Publication number: CN217387552U
Application number: CN202123264916.2U
Authority: CN
Inventors: 陈庆典; 万伟; 伍华燕; 赵方华
Original assignee: Advanced-Connectek (kun-Shan) Ltd
Current assignee: Advanced-Connectek (kun-Shan) Ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-09-06
Anticipated expiration: 2031-12-23
Also published as: TWM636773U

Abstract

The utility model relates to an electric connector, including insulator and a plurality of terminal. The terminal is configured on the insulating body. Each terminal has a welding end and a butt end opposite to each other, and a jogged part connected between the welding end and the butt end. The welding end and the butt joint end are respectively exposed out of the insulation body. The butt joint end is used for connecting with another electric connector. The fitting portion is assembled into the insulating body. The embedding part of at least one terminal is bent in a Z shape and extends to the welding end and the butt joint end.

Description

Electrical connector with improved contact arrangement

Technical Field

The present invention relates to an electrical connector.

Background

A general electrical connector interface is a Universal Serial Bus (USB), which is widely used by general consumers due to its plug and play characteristic, and is developed from USB 2.0 transmission specification to USB 3.0 transmission specification with faster transmission speed.

However, the conventional electrical connector is obviously poor in structural strength. For example, the metal shell as an integral external structure is used to accommodate the terminal and the insulation body, and in some cases, the metal shell needs to be assembled to the circuit board, so that if the structural strength of the metal shell is not good during the plugging and unplugging process of the electrical connector, the metal shell is easily deformed by improper force application of a user, or even has structural interference with the butted electrical connector, so that the metal shell cannot be separated. Similarly, the strength of the bond between the terminal and the housing is critical to the durability of the electrical connector, and if neglected, the terminal will deform and its alignment will deteriorate. Accordingly, if a solution cannot be provided in response to the above problem, the electrical connector is likely to be gradually eliminated by the consumer market due to the above problem.

Disclosure of Invention

The utility model provides an electric connector, its overall structure intensity that has the preferred.

The utility model discloses an electric connector, including insulator and a plurality of terminal. The terminal is configured on the insulating body. Each terminal has a welding end and a butt end opposite to each other, and a fitting portion connected between the welding end and the butt end. The welding end and the butt joint end are respectively exposed out of the insulation body. The butt joint end is used for connecting with another electric connector. The fitting portion is assembled into the insulating body. The embedding part of at least one terminal is bent in a Z shape and extends to the welding end and the butt joint end.

Preferably, the housing has a base, a tongue, and a plurality of receiving grooves, each receiving groove extending from the base to the tongue, the solder end of each terminal protruding from the base, and the mating end of each terminal protruding from the tongue.

Preferably, each of the accommodating grooves has a first window and a second window, the first window extends from the base to the tongue portion to be L-shaped, and the mating end of the terminal having the Z-shaped bend passes through the first window. The second window is positioned on the base and back to the first window, and the welding end of the terminal with the Z-shaped bend passes through the second window.

Preferably, the Z-shaped bend is accommodated in the base and located between the first window and the second window.

Preferably, the second window is I-shaped, and the fitting portion of the terminal having the Z-shaped bend has a plurality of wing portions located at two opposite sides of the Z-shaped bend, so that the Z-shaped bend is adapted to the second window.

Preferably, the engaging portion of the terminal having the Z-shaped bend further has a click structure, and the click structure interferes with an inner wall of the accommodating groove.

Preferably, the electrical connector further includes a metal shell, and the insulation body and the plurality of terminals are accommodated in the metal shell. The electric connector is a socket electric connector and is suitable for being configured on the circuit board. The welding end of each terminal and the rear edge of the metal shell are inserted into the circuit board.

Preferably, the metal shell has at least one pin located at the rear edge and protruding out of the insulating body.

Preferably, the at least one pin is located at a corner of the metal shell and is L-shaped.

Preferably, the insulating body comprises a base and a tongue, the rear edge and the base of the metal shell being positioned by means of a protruding profile and a recessed profile adapted to each other.

Preferably, the insulation body comprises a base part and a tongue part, and the rear edge of the metal shell and the base part are combined through the matched stop bending and the stop concave part.

Preferably, the metal shell further has a spring arm protruding into the metal shell, and opposite ends of the spring arm are continuous with the body of the metal shell.

Preferably, the insulating body includes a base portion and a tongue portion, and the base portion has a positioning column inserted in the circuit board.

Preferably, the welding end of each terminal is sharp to penetrate through the circuit board.

Preferably, the insulation body is T-shaped and includes a base and a tongue, and the terminal having the Z-shaped bend extends from the welding end starting structure into the base, and extends toward the tongue to form the Z-shaped bend, and then gradually protrudes from the tongue to extend to the mating end.

In view of the above, in the electrical connector of the present invention, the terminal has the abutting portion and the welding portion opposite to each other, and the fitting portion connected between the abutting portion and the welding portion, and the fitting portion is further in the Z-shaped structure and assembled in the insulating body. Therefore, the embedding part is embedded in the insulating body in the Z-shaped structure, so that enough bonding structural strength between the terminal and the insulating body can be provided in the limited space in the insulating body, the rightness of the terminal is improved, and the effect of saving the structural space of the insulating body is indirectly achieved.

Drawings

Fig. 1 is a schematic diagram of an electrical connector according to an embodiment of the present invention.

Fig. 2 shows the electrical connector of fig. 1 from another view.

Fig. 3 and fig. 4 are exploded views of the electrical connector from different perspectives, respectively.

Fig. 5 is a partial cross-sectional view of the electrical connector.

Description of the symbols

100 electric connector

110 insulating body

111 positioning column

112, a bump

113a containing groove

113a first window

113b second window

113c fastening groove section

115 protruding profile

116 stop recess

120: terminal

121 butt joint end

122 welding end

123 fitting part

123a, 123b wing

123c clamping point structure

130 metal shell

131: elastic arm

132 connecting pin

133 stopping bending

134 concave profile

200 circuit board

210. 220 welding part

230 positioning hole

A1 base part

A2 tongue

D1 butt joint axial direction

E1 leading edge

E2 trailing edge

T1 Upper row terminal

T2 lower row of terminals.

Detailed Description

Fig. 1 is a schematic diagram of an electrical connector according to an embodiment of the present invention, and also illustrates an assembly relationship between the electrical connector 100 and a circuit board 200. Fig. 2 illustrates the electrical connector of fig. 1 from another perspective. Referring to fig. 1 and fig. 2, in the present embodiment, the electrical connector 100 is, for example, a socket electrical connector and is suitable for being disposed on a circuit board 200. The electrical connector 100 is adapted to be mated with or separated from another electrical connector (not shown) along a mating axis D1, and as shown in the figure, the electrical connector has a front edge E1 and a rear edge E2 opposite to each other along the mating axis D1, the front edge E1 is an interface structure for mating with the other electrical connector, and the rear edge E2 is for being inserted into the circuit board 200.

Fig. 3 and fig. 4 are exploded views of the electrical connector from different perspectives, respectively. Referring to fig. 3 and fig. 4, the electrical connector 100 of the present embodiment includes an insulating body 110, a plurality of terminals 120, and a metal shell 130. The insulating body 110 and the plurality of terminals 120 are accommodated in the metal shell 130. The terminals 120 are disposed on the insulating body 110 and are divided into an upper row of terminals T1 and a lower row of terminals T2 according to different arrangement. Each terminal 120 has a welding end 122 and a mating end 121 opposite to each other, and a fitting portion 123 connected between the welding end 122 and the mating end 121. The soldering terminal 122 and the butt-joint terminal 121 are respectively exposed out of the insulation body 110, wherein the soldering terminal 122 and the rear edge E2 are inserted into the circuit board 200, and the soldering terminal 122 has a sharp corner to facilitate the soldering terminal to penetrate through the circuit board 200. The mating terminal 121 is used to connect with another electrical connector. The fitting portion 123 is assembled in the insulating body 110. The engaging portion 123 of at least one terminal 120 is bent in a Z shape and extends to the welding end 122 and the abutting end 121, and for example, the upper row of terminals T1 has the aforementioned Z-shaped bend, which will be described in detail later.

The upper row of terminals T1 of the present embodiment is substantially an elastic terminal, and therefore the mating terminal 121 can also be regarded as an elastic terminal, which is not only used to electrically connect with a terminal of another electrical connector to be mated, but also is beneficial to provide a clamping effect when the mating terminal 121 is mated with the other electrical connector.

Fig. 5 is a partial cross-sectional view of the electrical connector. Referring to fig. 3 to 5, in detail, the insulation body 110 is a T-shaped structure and has a base portion a1, a tongue portion a2 and a plurality of receiving grooves 113, each receiving groove 113 extends from the base portion a1 to the tongue portion a2, the soldering end 122 of each terminal 120 protrudes from the base portion a1, and the mating end 121 of each terminal 120 protrudes from the tongue portion a 2. Further, the terminal 120 having a Z-shaped bend (i.e., the upper row of terminals T1) extends from the soldering terminal 122 into the base a1, and extends toward the tongue a2 to form a Z-shaped bend, and then gradually protrudes from the tongue a2 to the mating terminal 121.

Furthermore, each receiving groove 113 has a first window 113a and a second window 113b, the first window 113a extends from the base a1 to the tongue a2 to be L-shaped, and the mating end 121 of the terminal 120 having the Z-shaped bend passes through the first window 113 a. The second window 113b is located at the base a1 and faces away from the first window 113a, and the soldering terminal 122 of the terminal 120 having the Z-shaped bend passes through the second window 113 b. Accordingly, the Z-shaped bend is substantially accommodated in the base a1 and located between the first window 113a and the second window 113 b. Here, the Z-shaped bend is a structure that is bent at a non-right angle, so as to save the internal space of the insulating body 110 occupied by the terminal 120 and improve the structural strength of the terminal 120. In other words, the terminal 120 can be positioned in the insulating body 110 in a smaller space, so as to improve the true position (true position) and the combination stability of the terminal 120 in the insulating body 110, and effectively avoid the terminal 120 from being deformed and dislocated.

Referring to fig. 3 and 4 again, in the present embodiment, the second window 113b is I-shaped, and the engaging portion 123 of the terminal 120 having the Z-shaped bend has a plurality of wings 123b located at two opposite sides of the Z-shaped bend, so that the Z-shaped bend is also I-shaped to fit the second window 113 b. Meanwhile, the fitting portion 123 of the terminal 120 having the Z-shaped bend also has a click structure 123 c. When the terminal 120 with the Z-shaped bend moves into the receiving groove 113 through the base a1, the snap structure 123c interferes with the inner wall of the receiving groove 113, that is, the snap groove section 113c of the receiving groove 113 shown in fig. 4, so as to realize the state that the terminal 120 with the Z-shaped bend is assembled and fixed in the receiving groove 113.

Referring to fig. 1 and fig. 2, in the present embodiment, the metal shell 130 has at least one pin 132 located at the rear edge E2 and protruding out of the insulation body 110. As shown in fig. 2, the present embodiment takes four pins 132 as an example, and the pins 132 are located at the corners of the metal shell 130 and are L-shaped. Further, the rear edge E2 and the base a1 of the metal shell 130 are positioned by the protruding profile 115 and the recessed profile 134 fitting each other. The recessed profile 134 of the metal shell 130 and the protruding profile 115 of the insulating body 110 are taken as examples, but not limited thereto, and the other configurations may be reversed. Further, the rear edge E2 of the metal shell 130 and the base a1 are combined by the stopper bend 133 and the stopper recess 116 fitted to each other. Here, the stopper bend 133 of the metal shell 130 and the stopper recess 116 of the insulating body 110 are taken as examples, but not limited thereto, and the other way around can be adopted.

On the other hand, the metal shell 130 of the embodiment further has an elastic arm 131 protruding inside the metal shell 130, and two opposite ends of the elastic arm 131 are continuous with the body of the metal shell 130, so that the elastic arm 131 can be regarded as a simple beam. When the electrical connector 100 is plugged into or pulled out from another electrical connector for mating or separation, the elastic arm 131 is used to clamp the other electrical connector, so that the elastic arm 131, which can be regarded as a simple beam, can facilitate the plugging process and avoid possible structural interference. For example, the conventional similar elastic arm is mostly a cantilever beam, that is, one end of the elastic arm is connected with the metal shell structure, and the other end of the elastic arm is in a suspended state. Therefore, the other end of the suspension often generates structural interference with another butted electric connector due to deformation or dislocation of the elastic arm, and even generates a state that the other end of the suspension is buckled together and cannot be separated.

On the other hand, as can be seen from fig. 1 and fig. 2, the base portion a1 of the insulating body 110 has a positioning post 111, the circuit board 200 has

soldering portions

210 and 220 and a positioning hole 230, wherein the positioning post 111 is inserted into the positioning hole 230 correspondingly. The features of the

soldering portions

210 and 220 include holes and conductive pads (pads) around the holes, so that the positioning posts 111 are inserted into the positioning holes 230, and the soldering ends 122 of the terminals 120 are inserted into the

soldering portions

210 and 220, respectively, which is advantageous for the subsequent surface soldering process. As shown in fig. 2, the base a1 of the housing 110 further has a plurality of bumps 112 for abutting against the circuit board 200, and the bumps 112 are coplanar with each other, so that they can be used as a reference surface when abutting against the circuit board 200, and the circuit board 200 and the electrical connector 100 can maintain a specific distance without being skewed.

In summary, in the above embodiments of the present invention, the terminal has the abutting portion and the welding portion opposite to each other, and the engaging portion connected between the abutting portion and the welding portion, and the engaging portion is further formed in a Z-shaped structure and assembled in the insulating body. Moreover, as the socket electric connector arranged on the circuit board, the metal shell is further provided with pins at the rear edge, wherein the pins of one embodiment are positioned at the corners of the metal shell and are L-shaped, so that the positioning (limiting) effect is provided when the pins are inserted into the circuit board, and meanwhile, the bonding structure strength of the electric connector and the circuit board is also improved.

Therefore, the embedding part is embedded in the insulating body in the Z-shaped structure, so that enough bonding structural strength between the terminal and the insulating body can be provided in the limited space in the insulating body, the rightness of the terminal is improved, and the effect of saving the structural space of the insulating body is indirectly achieved.

Claims

1. An electrical connector, comprising:

an insulating body; and

the plurality of terminals are arranged in the insulating body, each terminal is provided with a welding end and a butt end which are opposite to each other, and an embedding part connected between the welding end and the butt end, the welding end and the butt end are respectively exposed out of the insulating body, the butt end is used for being connected with another electric connector, the embedding part is assembled in the insulating body, and the embedding part of at least one terminal is bent in a Z shape and extends to the welding end and the butt end.

2. The electrical connector of claim 1, wherein: the insulative body has a base portion, a tongue portion, and a plurality of receiving grooves, each receiving groove extending from the base portion to the tongue portion, the solder end of each terminal protruding from the base portion, the mating end of each terminal protruding from the tongue portion.

3. The electrical connector of claim 2, wherein: each accommodating groove is provided with a first window and a second window, the first window extends from the base to the tongue to be L-shaped, the butt joint end of the terminal with the Z-shaped bend passes through the first window, the second window is positioned on the base and back to the first window, and the butt joint end of the terminal with the Z-shaped bend passes through the second window.

4. The electrical connector of claim 3, wherein: the Z-shaped bend is accommodated in the base and positioned between the first window and the second window.

5. The electrical connector of claim 3, wherein: the second window is I-shaped, the embedding part of the terminal with the Z-shaped bend is provided with a plurality of wing parts which are positioned at two opposite sides of the Z-shaped bend, so that the Z-shaped bend is matched with the second window.

6. The electrical connector of claim 2, wherein: the embedding part of the terminal with the Z-shaped bend also has a clamping point structure, and the clamping point structure interferes with the inner wall of the accommodating groove.

7. The electrical connector of claim 1, wherein: the metal shell is accommodated in the insulating body and the terminals, the electric connector is a socket electric connector and is suitable for being configured on a circuit board, and the welding end of each terminal and the rear edge of the metal shell are inserted into the circuit board.

8. The electrical connector of claim 7, wherein: the metal shell is provided with at least one pin which is positioned on the rear edge and protrudes out of the insulating body.

9. The electrical connector of claim 8, wherein: the at least one pin is positioned at the corner of the metal shell and is L-shaped.

10. The electrical connector of claim 7, wherein: the insulating body comprises a base and a tongue, the rear edge and the base of the metal shell being positioned by a protruding profile and a recessed profile that fit each other.

11. The electrical connector of claim 7, wherein: the insulation body comprises a base part and a tongue part, and the rear edge of the metal shell and the base part are combined through mutually matched stop bending and stop concave parts.

12. The electrical connector of claim 7, wherein: the metal shell is also provided with elastic arms protruding into the metal shell, and two opposite ends of each elastic arm and the body of the metal shell are of a continuous structure.

13. The electrical connector of claim 7, wherein: the insulating body comprises a base part and a tongue part, wherein the base part is provided with a positioning column which is inserted in the circuit board.

14. The electrical connector of claim 7, wherein: the welding end of each terminal is provided with a sharp corner to penetrate through the circuit board.

15. The electrical connector of claim 1, wherein: the insulation body is T-shaped and comprises a base part and a tongue part, the terminal with the Z-shaped bending extends into the base part from the welding end starting structure and extends towards the tongue part to form the Z-shaped bending, and then the terminal gradually protrudes from the tongue part and extends to the butt joint end.