Self-short-circuit structure of electric connector

Abstract

The utility model discloses a self-short-circuit structure of an electric connector. The self-short-circuit structure comprises an ejector rod, a contact piece, a connecting piece, an insulator, a check ring, a spring and a cover plate, the insulator comprises a contact piece hole, an ejector rod hole, a groove and a check ring groove, the ejector rod is inserted into the ejector rod hole, and the contact piece is inserted into the contact piece hole; the connecting piece is provided with a plurality of U-shaped ports, the connecting piece is inserted into one end of the ejector rod and installed in the groove, and the U-shaped ports are connected with the contact piece; one end of the spring is installed at the same end of the ejector rod and abuts against the connecting piece, the cover plate covers the insulator, the other end of the spring abuts against the cover plate, and the check ring is installed in the check ring groove and fixes the cover plate. According to the utility model, the short-circuit function of the contact elements at different positions in the connector can be flexibly realized through the connecting sheets, and the connector has good voltage-withstanding performance.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connectors, in particular to a self-short-circuit structure of an electric connector. Background Art

[0002] Electrical connectors are essential components for connecting two devices electrically and have a wide range of applications. Currently, commonly used electrical connectors essentially rely on internal contacts engaging with each other to transmit current and signals between devices. However, in some specialized connection scenarios, the connectors require built-in short-circuit protection to enhance system safety. Utility Model Content

[0003] In view of this, the present invention hopes to provide a self-shorting structure of an electrical connector, which can flexibly realize the self-shorting function of contacts at different positions in the connector through a connecting piece, and has good pressure resistance performance.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0005] The utility model provides a self-short-circuit structure of an electrical connector, comprising a push rod, a contact piece, a connecting piece, an insulator, a retaining ring, a spring, and a cover plate; the insulator comprises a contact piece hole, a push rod hole, a groove, and a retaining ring groove, the push rod is inserted into the push rod hole, and the contact piece is inserted into the contact piece hole; a plurality of U-shaped ports are provided on the connecting piece, the connecting piece is inserted into one end of the push rod and installed in the groove, and the U-shaped port is connected to the contact piece; one end of the spring is installed at the same end of the push rod and abuts against the connecting piece, the cover plate is covered on the insulator, the other end of the spring abuts against the cover plate, the retaining ring is installed in the retaining ring groove to fix the cover plate.

[0006] Furthermore, a sheath is provided on the contact piece.

[0007] Furthermore, the shape of the groove matches the shape of the connecting piece.

[0008] The beneficial effects of the utility model are as follows:

[0009] The U-shaped ports are located at different positions on the connecting piece adopted by the present invention. The number and position of the U-shaped ports can be flexibly designed according to actual conditions. In the unplugged state, the U-shaped ports on the connecting piece contact the contact pieces, and the short-circuit function of the contact pieces at different positions can be flexibly realized. The invention is easy to use and has strong practicality. In addition, the U-shaped surface of the U-shaped port has more contact area when connected to the contact piece, and the conductive performance is more stable.

[0010] The insulator of the utility model is designed with a special structure of deep grooves. The connecting piece can move in the grooves under force. After the connector is fully docked, the connecting piece and the contact piece can have sufficient creepage distance. In addition, a sheath is provided on the contact piece to prevent the air gap between the contact piece and the connecting piece from being punctured during the voltage test after insertion, thereby improving the voltage resistance performance of the product.

[0011] The parts of the utility model are small in size, easy to manufacture and low in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a cross-sectional view of a self-short-circuit structure of an electrical connector according to an embodiment of the present utility model;

[0013] Figure 2 This is a schematic diagram of a connecting piece structure of a self-short-circuit structure of an electrical connector according to an embodiment of the present utility model;

[0014] Figure 3 This is a schematic diagram of the insulator structure of a self-short-circuit structure of an electrical connector according to an embodiment of the present utility model;

[0015] Figure 4 This is an exploded view of a self-short-circuit structure of an electrical connector according to an embodiment of the present utility model;

[0016] Among them: 1 is the push rod, 2 is the contact piece, 3 is the connecting piece, 31 is the U-shaped port, 4 is the insulator, 41 is the groove, 42 is the retaining ring groove, 43 is the contact piece hole, 44 is the push rod hole, 5 is the sheath, 6 is the retaining ring, 7 is the spring, and 8 is the cover plate. DETAILED DESCRIPTION

[0017] In order to enable a more detailed understanding of the features and technical contents of the present invention, the implementation of the present invention is described in detail below with reference to the accompanying drawings. The accompanying drawings are for reference only and are not intended to limit the present invention.

[0018] like Figure 1-Figure 4As shown, the embodiment of the present invention is an electrical connector self-shorting structure, comprising a push rod 1, three contacts 2, a connecting piece 3, an insulator 4, a retaining ring 6, a spring 7, and a cover plate 8; the insulator 4 is provided with a groove 41, a retaining ring groove 42, a contact hole 43, and a push rod hole 44, the three contacts 2 are sleeved with a sheath 5, the push rod 1 is inserted into the push rod hole 44, and the contact 2 is inserted into the contact hole 43; the connecting piece 3 is provided with three U-shaped ports 31, the groove 41 is connected to the connecting piece The connecting piece 3 matches the insulator 4, the connecting piece 3 is inserted into one end of the push rod 1 and installed in the groove 41, and the three U-shaped ports 31 are respectively connected to the three contact members 2, so that the contact members 2 at three different position holes are mutually conductive and have a short-circuit function; one end of the spring 7 is installed on the push rod 1 and abuts against the connecting piece 3, the cover plate 8 is covered on the insulator 4, the other end of the spring 7 abuts against the cover plate 8, and the retaining ring 6 is installed in the retaining ring groove 42 to fix the cover plate 8.

[0019] The present invention adopts a connecting piece 3 with a U-shaped port 31, and the number and position of the U-shaped port 31 can be flexibly designed according to actual conditions. In the unplugged state, the U-shaped port 31 on the connecting piece 3 contacts the contact piece 2, flexibly realizing the short-circuit function of the contact piece 2 in different positions. It is easy to use and has strong practicality. In addition, the U-shaped surface of the U-shaped port 31 has more contact area when connected to the contact piece 2, and the conductive performance is more stable.

[0020] Insulator 4 is designed with a deep groove 41. Preferably, the shape of groove 41 matches that of connector 3, allowing connector 3 to move within it under load. When fully mated, connector 3 and contact 2 have sufficient creepage distance. A sheath 5 is added to contact 2 to prevent the air gap between contact 2 and connector 3 from being broken down after mating, thereby improving the product's voltage resistance.

[0021] The assembly and use process of the embodiment of the utility model is as follows:

[0022] First, install the push rod 1 into the insulator 4, then put the sheath 5 on the contact piece 3, and then install the contact piece 3 into the insulator 4. Align the connecting piece 3 and install it into the insulator 4. Then install the spring 7 onto the connecting piece 3, cover the cover 8, install the retaining ring 6 into the retaining ring groove 42, and use the retaining ring 6 to fix the cover 8 in the insulator 4. Finally, screw the assembled insulator parts into the connector housing.

[0023] Before the plug is inserted, the spring 7 is forced to push the connecting piece 3 and the push rod 1, and the contact pieces 2 connected to the connecting piece 3 are in a conductive short-circuit state. When inserted with the docking end, the push rod 1 is forced to push the connecting piece 3. When it is fully inserted into place, the push rod 1 completely pushes the connecting piece 3 away. The connecting piece 3 and the contact pieces 2 are not conductive, the contact pieces 2 in the three holes are disconnected, the short-circuit function fails, and it is normally conductive with the docking end. When the insertion is cancelled, the connecting piece 3 is reset under the action of the elastic force of the spring 7, and the short-circuit function is restored.

[0024] Here, the specific models of the above-mentioned devices are not limited or described in detail, and the in-depth connection methods of the above-mentioned devices are not described in detail. As common knowledge, those skilled in the art can understand it.

[0025] The embodiments of the present utility model are only to introduce its specific implementation methods and are not intended to limit its scope of protection. Those skilled in the art may make certain modifications inspired by the embodiments, so any equivalent changes or modifications made in accordance with the scope of the present utility model patent shall fall within the scope of the claims of the present utility model patent.

Claims

1. A self-short-circuit structure of an electrical connector, characterized in that: It includes a push rod, a contact piece, a connecting piece, an insulator, a retaining ring, a spring, and a cover plate; the insulator includes a contact piece hole, a push rod hole, a groove, and a retaining ring groove, the push rod is inserted into the push rod hole, and the contact piece is inserted into the contact piece hole; a plurality of U-shaped ports are provided on the connecting piece, the connecting piece is inserted into one end of the push rod and installed in the groove, and the U-shaped port is connected to the contact piece; one end of the spring is installed at the same end of the push rod and abuts against the connecting piece, the cover plate is covered on the insulator, the other end of the spring abuts against the cover plate, and the retaining ring is installed in the retaining ring groove to fix the cover plate.

2. The self-short-circuiting structure of an electrical connector according to claim 1, characterized in that: A protective sleeve is provided on the contact piece.

3. The self-short-circuit structure of an electrical connector according to claim 2, characterized in that: The shape of the groove matches the shape of the connecting piece.

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