Electrical connector

Abstract

The utility model provides a kind of electric connector, including insulating body and hold at least one row of terminal of the insulating body, the terminal includes holding portion held in the insulating body, contact portion and tail portion, the contact portion is exposed to the insulating body from the holding portion and extends forward, the tail portion is exposed to the insulating body from the holding portion and extends backward, the terminal includes several conductive terminals and detection terminal, in front-back direction, the front end of the contact portion of the detection terminal lags behind the front end of the contact portion of the conductive terminal, so that the contact portion of the conductive terminal is contacted with the mating terminal of a mating connector, and the contact portion of the detection terminal cannot be contacted with the mating terminal.

Description

Technical Field

[0001] This utility model relates to an electrical connector, and more particularly to an electrical connector with good waterproof performance. Background Technology

[0002] In traditional Type-C connectors, when foreign objects or water enter the mating cavity, adjacent terminals may become conductive, leading to short circuits and damage to the connector and the electronic devices connected to it.

[0003] Therefore, it is indeed necessary to provide a new electrical connector to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of this invention is to provide an electrical connector with good waterproof performance.

[0005] The objective of this utility model is achieved through the following technical solution: An electrical connector includes an insulating body and at least one row of terminals fixed to the insulating body. Each terminal includes a retaining portion fixed within the insulating body, a contact portion extending forward from the retaining portion and exposing the insulating body, and a tail portion extending rearward from the retaining portion and out of the insulating body. Each terminal includes a plurality of conductive terminals and detection terminals. In the front-rear direction, the front end of the contact portion of the detection terminal lags behind the front end of the contact portion of the conductive terminal, such that the contact portion of the conductive terminal contacts the mating terminal of a mating connector, while the contact portion of the detection terminal does not contact the mating terminal.

[0006] Furthermore, the insulating body includes a base and a mating tongue extending forward from the base. The base completely covers the retaining portion of the terminal, and the contact portion extends forward from the retaining portion out of the base and is exposed to the mating tongue.

[0007] Furthermore, the mating tongue has a first mating surface and a second mating surface located on the upper and lower sides respectively, and the electrical connector has two rows of terminals exposed on the first mating surface and the second mating surface, the two rows of terminals being arranged in opposite symmetrical configurations.

[0008] Furthermore, the portions of the first and second mating surfaces that connect to the base are provided with raised bosses, and the contact portion of the detection terminal does not extend beyond the bosses.

[0009] Furthermore, both the first mating surface and the second mating surface have twelve terminal positions, and the detection terminal in each row of terminals is located at the eighth position of the twelfth terminal position.

[0010] Furthermore, each row of conductive terminals includes two ground terminals, two power terminals, and two signal terminals. Among the twelve terminal positions, the two ground terminals are located at the first and twelfth positions, the two power terminals are located at the fourth and ninth positions, and the two signal terminals are located at the sixth and seventh positions.

[0011] Furthermore, the insulating body is covered by a metal shell, and a mating cavity is formed between the metal shell and the mating tongue for the mating terminal to enter.

[0012] Furthermore, the electrical connector includes an insulating shell formed outside the insulating body and the metal housing, the insulating shell extending forward to cover the mating cavity.

[0013] Furthermore, the insulating shell includes a main body and a stepped portion with a smaller outer diameter extending forward from the front end of the main body. The stepped portion is fitted with a front end for engaging with the mating connector. The tail of the terminal extends rearward out of the insulating shell, and a waterproof adhesive portion is provided at the rear end of the insulating shell corresponding to the tail.

[0014] Furthermore, the metal outer shell is formed by stamping and bending a metal sheet. The metal outer shell includes a cylindrical part and a shielding part formed rearward from the cylindrical part. The docking cavity is formed between the cylindrical part and the docking tongue plate, and the cylindrical part is stamped into the docking cavity to form a plurality of docking protrusions.

[0015] Compared with the prior art, this utility model has the following advantages: A detection terminal is added to the terminal block. The length of the contact portion of the detection terminal is shorter than the length of the contact portions of other terminals, and the front end of the contact portion of the detection terminal lags behind the front end of the contact portion of the conductive terminal. When the conductive terminal mates with the mating terminal, the detection terminal will not contact the mating terminal. In this case, if foreign objects or water enter the mating cavity of the electrical connector, the detection terminal will conduct through to the adjacent terminal, and the connector will stop working to prevent damage to the electrical connector and the electronic equipment connected to it. Attached Figure Description

[0016] Figure 1 This is a perspective view of the electrical connector of this utility model.

[0017] Figure 2 yes Figure 1 A three-dimensional image viewed from another direction.

[0018] Figure 3 This is an exploded perspective view of the electrical connector of this utility model.

[0019] Figure 4 yes Figure 3 A three-dimensional exploded view from another direction.

[0020] Figure 5 This is an exploded perspective view of the terminal and insulating body of this utility model.

[0021] Figure 6 yes Figure 5 A three-dimensional exploded view from another direction.

[0022] Figure 7 This is an exploded perspective view of the terminal of this utility model.

[0023] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0024] Please refer to Figures 1 to 7 As shown, the electrical connector 100 of this utility model is preferably a USB Type C connector that can be plugged in and out in both directions, but it is not limited to this and can also be other types of electrical connectors.

[0025] The electrical connector 100 is mounted on a circuit board (not shown) for mating with a mating connector (not shown). The electrical connector 100 includes an insulating body 1, a plurality of terminals 2 held in the insulating body 1, a metal shell 3 covering the insulating body 1, and an insulating outer shell 4 formed outside the insulating body 1 and the metal shell 3. The insulating body 1 includes a base 11 and a mating tongue 12 extending forward from the base 11. A mating cavity 31 is formed between the metal shell 3 and the mating tongue 12 for the mating terminals of the mating connector to enter.

[0026] Please refer to Figures 3 to 7As shown, the terminal 2 includes a holding portion 21 fixed to the base 11, a contact portion 22 extending forward from the holding portion 21, and a tail portion 23 extending rearward from the holding portion 21 out of the base 11. The base 11 completely covers the holding portion 21 of the terminal 2, and the contact portion 22 extends forward from the holding portion 21 out of the base 11 and is exposed to the mating tongue 12. The mating tongue 12 includes mating surfaces 120 on the upper and lower sides for exposing the contact portion 22 of the terminal 2. The mating surface 120 includes a first mating surface located on one side of the mating tongue 12 and a second mating surface opposite to the first mating surface. The electrical connector 100 has two rows of terminals 2 exposed to the first mating surface and the second mating surface, and the two rows of terminals 2 are arranged symmetrically in opposite directions. Both the first mating surface and the second mating surface have twelve terminal positions. Each row of terminals 2 includes a plurality of conductive terminals and detection terminals D. Each row of conductive terminals includes two ground terminals G, two power terminals P, and two signal terminals S. Of the twelve terminal positions, the detection terminal D is located at position eight, the two ground terminals G are located at positions one and twelfth, the two power terminals P are located at positions four and ninth, and the two signal terminals S are located at positions six and seventh. A pair of metal shielding plates 24 are sandwiched between the upper and lower rows of terminals 2.

[0027] like Figure 3 As shown, in the front-rear direction, the front end of the contact portion 22 of the detection terminal D lags behind the front end of the contact portion 22 of the conductive terminal. When the electrical connector 100 mates with the mating connector, the contact portion 22 of the detection terminal D will not contact the mating terminal, while the conductive terminal in the terminal 2 will contact the mating terminal. If foreign objects or water enter the mating cavity 31 of the electrical connector 100, it will cause the detection terminal D to conduct with the adjacent signal terminal S and / or power terminal P. At this time, the detection terminal D detects current, and the electrical connector 100 stops working to prevent damage to the electrical connector 100 and the electronic equipment connected to the electrical connector 100. Elevated bosses 121 are provided at the connection between the mating surfaces 120 on the upper and lower sides and the base 11. The contact portion 22 of the detection terminal D is exposed to the bosses 121, and its foremost point does not extend beyond the bosses 121. When the electrical connector 100 and the mating connector are mated, foreign objects and water entering the mating cavity 31 will be pushed into the part of the boss 121, so that the detection terminal D can accurately detect foreign objects and water that may affect the normal operation of the electrical connector.

[0028] The metal outer shell 3 is formed by stamping and bending a metal sheet. The metal outer shell 3 includes a cylindrical portion 32 surrounding the mating tongue plate 12 and a shielding portion 33 forming rearward from the cylindrical portion 32. The mating cavity 31 is formed between the cylindrical portion 32 and the mating tongue plate 12, and a plurality of mating protrusions 321 are stamped into the cylindrical portion 32 toward the mating cavity 31. The mating protrusions 321 cooperate with the mating connector to improve the tightness of the fit.

[0029] The electrical connector 100 includes an insulating shell 4 formed outside the insulating body 1 and the metal shell 3 to ensure reliable retention between the insulating body 1 and the metal shell 3. The insulating shell 4 includes a body 41 covering the mating cavity 31 and a stepped portion 42 with a smaller outer diameter extending forward from the front end of the body 41. The stepped portion 42 is fitted with a front end portion 43 for mating with the mating connector. The tail portion 23 of the terminal 2 extends rearward beyond the insulating body 1 and the insulating shell 4. After the insulating shell 4 is formed on the insulating body 1 and the metal shell 3, adhesive is applied to the rear end of the insulating shell 4 at a position corresponding to the tail portion 23 to form a waterproof adhesive portion 44, preventing water entering the mating cavity 31 from seeping into the space where the tail portion 23 is located, thereby enhancing the waterproof performance of the electrical connector 100.

[0030] The above description is only a partial embodiment of the present utility model, not all of the embodiments. Any equivalent changes to the technical solution of the present utility model made by those skilled in the art after reading the present utility model specification shall be covered by the claims of the present utility model.

Claims

1. An electrical connector comprising an insulating body and at least one row of terminals fixed to the insulating body, the terminals comprising a retaining portion fixed within the insulating body, a contact portion extending forward from the retaining portion and exposing the insulating body, and a tail portion extending rearward from the retaining portion and extending out of the insulating body, characterized in that: The terminal includes a plurality of conductive terminals and a detection terminal. In the front-rear direction, the front end of the contact portion of the detection terminal lags behind the front end of the contact portion of the conductive terminal, such that the contact portion of the conductive terminal contacts the mating terminal of a mating connector, while the contact portion of the detection terminal does not contact the mating terminal.

2. The electrical connector as described in claim 1, characterized in that: The insulating body includes a base and a mating tongue extending forward from the base. The base completely covers the retaining portion of the terminal, and the contact portion extends forward from the retaining portion out of the base and is exposed to the mating tongue.

3. The electrical connector as described in claim 2, characterized in that: The mating tongue has a first mating surface and a second mating surface located on the upper and lower sides respectively, and the electrical connector has two rows of terminals exposed on the first mating surface and the second mating surface, the two rows of terminals being arranged symmetrically in opposite directions.

4. The electrical connector as described in claim 3, characterized in that: The portions of the first and second mating surfaces that connect to the base are provided with raised bosses, and the contact portion of the detection terminal does not extend beyond the bosses.

5. The electrical connector as described in claim 3, characterized in that: Both the first mating surface and the second mating surface have twelve terminal positions, and the detection terminal in each row of terminals is located at the eighth position among the twelve terminal positions.

6. The electrical connector as described in claim 5, characterized in that: Each row of conductive terminals includes two ground terminals, two power terminals, and two signal terminals. Of the twelve terminal positions, the two ground terminals are located at the first and twelfth positions, the two power terminals are located at the fourth and ninth positions, and the two signal terminals are located at the sixth and seventh positions.

7. The electrical connector as claimed in claim 2, characterized in that: The insulating body is covered by a metal shell, and a mating cavity is formed between the metal shell and the mating tongue for the mating terminal to enter.

8. The electrical connector as claimed in claim 7, characterized in that: The electrical connector includes an insulating shell formed outside the insulating body and the metal housing, the insulating shell extending forward to cover the mating cavity.

9. The electrical connector as claimed in claim 8, characterized in that: The insulating shell includes a main body and a stepped portion with a smaller outer diameter extending forward from the front end of the main body. The stepped portion is fitted with a front end for engaging with the mating connector. The tail end of the terminal extends rearward out of the insulating shell. A waterproof adhesive portion is provided at the rear end of the insulating shell corresponding to the tail end.

10. The electrical connector as claimed in claim 7, characterized in that: The metal shell is formed by stamping and bending a metal sheet. The metal shell includes a cylindrical part and a shielding part formed rearward from the cylindrical part. The docking cavity is formed between the cylindrical part and the docking tongue plate, and the cylindrical part is stamped into the docking cavity to form a plurality of docking protrusions.

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