Secondary plug and secondary plug-in

Abstract

The secondary plug comprises a cover plate and a plug contact piece, the cover plate comprises a wiring section and a plugging section, a contact piece positioning groove penetrating through the wiring section and the plugging section is arranged in the cover plate, the plug contact piece is connected in the contact piece positioning groove, side openings are arranged on two sides of one end, far away from the wiring section, of the plugging section, and the side openings are communicated with the wiring section and the plugging section. The side opening is communicated with the contact piece positioning groove, a conducting bar is arranged in the side opening, the conducting bar comprises conducting spring wires which are arranged in parallel, each conducting spring wire comprises an elastic protruding part and a crimping part, the crimping parts are arranged in the contact piece positioning groove and located between the inner wall of the cover plate and the plug contact pieces, and the elastic protruding parts protrude out of the side opening. According to the utility model, the acting force during the plugging of the secondary plug-in is reduced, the unsmooth plugging and unplugging are realized, the surface wear condition of the conductor is also reduced, the conductive spring wires arranged in parallel can improve the contact area of the connection between the secondary plug and the secondary socket, and the stability of the electrical connection of the secondary plug-in is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of power wiring accessories, in particular to a secondary plug and a secondary plug-in unit. Background Art

[0002] The secondary plug-in is suitable for low-voltage withdrawable switchgear. The withdrawable functional unit realizes the isolation or connection of auxiliary circuits (output, input).

[0003] The secondary plug-in is composed of a secondary plug and a secondary socket. The existing secondary plug has the problem of unsmooth plugging and unplugging during actual use. For example, the Chinese patent with the announcement number CN207588331U discloses a switch cabinet secondary plug-in, whose plug unit includes a connector, the connector is connected to a mounting slot, a test card slot is set on one side of the connector, and a test moving contact is set on the side of the connector where the test card slot is set. The end of the test moving contact close to the mounting slot is located in the test card slot, and the end of the test moving contact away from the mounting slot is located on the surface of the connector. The connector is provided with a connection moving contact on the side opposite to the test moving contact. This technical solution uses hard contacts for plugging, which has the defects of large plugging force and unsmooth plugging and unplugging. In addition, multiple plugging and unplugging can easily lead to excessive wear of the contact surface, resulting in unreliable electrical connection. Utility Model Content

[0004] In order to solve the above problems, the technical solution provided by the utility model is:

[0005] A secondary plug comprises a cover plate and a plug contact, wherein the cover plate comprises a wiring section and a plug section, a contact positioning groove which passes through the wiring section and the plug section is provided in the cover plate, the plug contact is connected in the contact positioning groove, side openings are provided on both sides of an end of the plug section away from the wiring section, the side openings are communicated with the contact positioning groove, a conductive row is provided in the side openings, the conductive row comprises conductive spring wires arranged in parallel, the conductive spring wires comprise an elastic protrusion and a crimping portion, the crimping portion is provided in the contact positioning groove, and the crimping portion is located between the inner wall of the cover plate and the plug contact, and the elastic protrusion protrudes from the side opening.

[0006] The utility model is further configured such that the contact piece positioning groove and the side opening are symmetrically arranged in the cover plate, and a separation rib is provided between the two side openings.

[0007] The utility model is further configured that a limiting protrusion is provided on the inner wall of the contact piece positioning groove close to the side opening, and one end of the crimping portion is pressed against the limiting protrusion.

[0008] The utility model is further configured such that the distance from the limiting protrusion to the side opening is greater than the length of the conductive row.

[0009] The utility model is further configured that the ends of the conductive spring wires are respectively welded together with the ends of adjacent conductive spring wires to form the conductive row.

[0010] The utility model is further configured that the material of the conductive spring wire is beryllium copper alloy.

[0011] A secondary plug-in comprises a secondary socket and the above-mentioned secondary plug, wherein the secondary socket comprises a base shell and socket contacts connected to the base shell, a plug-in channel is provided in the base shell, the socket contacts are located on both sides of the plug-in channel, and the plug-in section of the secondary plug can be movably connected in the plug-in channel.

[0012] The utility model is further configured such that the maximum distance between the elastic protrusions of the two conductive rows is greater than the spacing between the two socket contacts.

[0013] The utility model is further configured that one end of the plug-in channel is provided with a trumpet-shaped guide opening.

[0014] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0015] The secondary plug of the technical solution is provided with a conductive row with elastic protrusions at the end of the plug contact. When the secondary plug is connected to the secondary socket, the deformation ability of the elastic protrusion is used to electrically connect with the contact in the secondary socket, thereby reducing the force applied when the secondary plug is plugged in, making plugging and unplugging not smooth, and reducing the surface wear of the conductor. The conductive spring wires arranged in parallel can increase the contact area between the secondary plug and the secondary socket, thereby ensuring the stability of the electrical connection of the secondary plug. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of a secondary plug according to an embodiment of the utility model.

[0017] Figure 2 This is an exploded view of the secondary plug of the embodiment of the utility model.

[0018] Figure 3 This is a cross-sectional view of a secondary plug according to an embodiment of the utility model.

[0019] Figure 4 This is a three-dimensional diagram of a conductive bar according to an embodiment of the present utility model.

[0020] Figure 5 This is a three-dimensional diagram of the secondary plug-in of an embodiment of the utility model. DETAILED DESCRIPTION

[0021] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.

[0022] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0023] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be a mechanical connection or an electrical connection, or it can be the internal connection of two components; it can be a direct connection, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0024] Example 1

[0025] Combined with Figure 1 To Attachment Figure 4 The technical scheme of the utility model is a secondary plug, comprising a cover plate 1 and a plug contact 2, the cover plate 1 comprising a wiring section 11 and a plug section 12, a contact positioning groove 13 passing through the wiring section 11 and the plug section 12 is provided in the cover plate 1, the plug contact 2 is connected in the contact positioning groove 13, and side openings 14 are provided on both sides of one end of the plug section 12 away from the wiring section 11, the side openings 14 are connected to the contact positioning groove 13, a conductive row 3 is arranged in the side openings 14, the conductive row 3 comprises conductive spring wires 31 arranged in parallel, the conductive spring wires 31 comprise elastic protrusions 32 and crimping portions 33, the crimping portions 33 are arranged in the contact positioning groove 13, and the crimping portions 33 are located between the inner wall of the cover plate 1 and the plug contact 2, and the elastic protrusions 32 protrude from the side openings 14.

[0026] In this embodiment, the plug section 12 is the portion connected to the external socket.

[0027] In this embodiment, the contact piece positioning groove 13 and the side opening 14 are symmetrically arranged in the cover plate 1 , and a separation rib 15 is arranged between the two side openings 14 to prevent the adjacent conductive bars 3 from contacting each other accidentally.

[0028] In this embodiment, a limiting protrusion 16 is provided on the inner wall of the contact positioning groove 13 near the side opening 14 , and one end of the crimping portion 33 presses against the limiting protrusion 16 . The limiting protrusion 16 is used to limit the movable position of the conductive bar 3 on the cover plate 1 .

[0029] In this embodiment, the distance from the limiting protrusion 16 to the side opening 14 is greater than the length of the conductive bar 3 , thereby ensuring that the conductive bar 3 can move on the cover plate 1 .

[0030] In this embodiment, the ends of the conductive spring wires 31 are respectively welded together with the ends of adjacent conductive spring wires 31 to form the conductive bar 3 , thereby effectively ensuring the consistency of the conductive bar 3 .

[0031] In this embodiment, the conductive spring wire 31 is made of beryllium copper alloy.

[0032] The secondary plug of the utility model is provided with a conductive row 3 with an elastic protrusion at the end of the plug contact 2. When the secondary plug is connected to the secondary socket, the deformation ability of the elastic protrusion 32 is used to electrically connect with the contact in the secondary socket, thereby reducing the force applied when the secondary plug is plugged in, making plugging and unplugging not smooth, and reducing the surface wear of the conductor. The parallel arranged conductive spring wires 31 can increase the contact area between the secondary plug and the secondary socket, thereby ensuring the stability of the electrical connection of the secondary plug.

[0033] Example 2

[0034] Combined with Figure 1 To Attachment Figure 5 The technical solution of the utility model is a secondary plug-in, including a secondary socket and the secondary plug described in Example 1, the secondary socket includes a base shell 4 and a socket contact 5 connected to the base shell 4, a plug-in channel 41 is opened in the base shell 4, the socket contact 5 is located on both sides of the plug-in channel 41, and the plug-in section 12 of the secondary plug can be movably connected in the plug-in channel 41.

[0035] In this embodiment, the maximum distance between the elastic protrusions 32 of the two conductive bars 3 is greater than the spacing between the two socket contacts 5 , so that the secondary plug is electrically connected to the secondary socket when connected.

[0036] In this embodiment, a trumpet-shaped guide opening 42 is formed at one end of the plug-in passage 41 for guiding the plug-in section 12 of the secondary plug.

[0037] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A secondary plug, characterized in that: It includes a cover plate and a plug contact, the cover plate includes a wiring section and a plug section, a contact positioning groove running through the wiring section and the plug section is opened in the cover plate, the plug contact is connected in the contact positioning groove, side openings are opened on both sides of one end of the plug section away from the wiring section, the side openings are connected to the contact positioning groove, a conductive row is arranged in the side openings, the conductive row includes conductive spring wires arranged in parallel, the conductive spring wires include an elastic protrusion and a crimping portion, the crimping portion is arranged in the contact positioning groove, and the crimping portion is located between the inner wall of the cover plate and the plug contact, and the elastic protrusion protrudes from the side opening.

2. A secondary plug according to claim 1, characterized in that: The contact piece positioning groove and the side opening are symmetrically arranged in the cover plate, and a separation rib is arranged between the two side openings.

3. A secondary plug according to claim 1, characterized in that: A limiting protrusion is provided on the inner wall of the contact piece positioning groove close to the side opening, and one end of the crimping portion is pressed against the limiting protrusion.

4. A secondary plug according to claim 3, characterized in that: The distance from the limiting protrusion to the side opening is greater than the length of the conductive row.

5. A secondary plug according to claim 1, characterized in that: The ends of the conductive spring wires are respectively welded together with the ends of adjacent conductive spring wires to form the conductive bar.

6. A secondary plug according to any one of claims 1 to 5, characterized in that: The conductive spring wire is made of beryllium copper alloy.

7. A secondary plug-in, characterized in that: It comprises a secondary socket and a secondary plug as claimed in any one of claims 1 to 6, wherein the secondary socket comprises a base shell and socket contacts connected to the base shell, a plug-in channel is provided in the base shell, the socket contacts are located on both sides of the plug-in channel, and the plug-in section of the secondary plug can be movably connected in the plug-in channel.

8. A secondary plug-in according to claim 7, characterized in that: The maximum distance between the elastic protrusions of the two conductive rows is greater than the spacing between the two socket contacts.

9. A secondary plug-in according to claim 7, characterized in that: A trumpet-shaped guide opening is provided at one end of the plug-in channel.

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