High-voltage connector with detachable contact element

Abstract

The utility model discloses a high-voltage connector with a detachable contact element, relates to the technical field of connectors, and solves the problem that in the prior art, when a contact element breaks down, an original connector is integrally scrapped, a brand new connector needs to be replaced, and the maintenance cost is too high. The connector comprises a plug and a socket in plugging cooperation with the plug, the plug comprises a plug housing, an installation assembly used for fixing a plug contact is detachably connected in the plug housing, an interface sealing body is arranged in the installation assembly, and the tail part of the plug housing is detachably connected with a plug end cover; the socket comprises a socket shell, a socket insulator corresponding to the interface sealing body and a clamping assembly matched with the socket insulator to package the socket contact piece are arranged in the socket shell, and the tail of the socket shell is detachably connected with a socket end cover. The defects that a connector cannot be maintained and a contact piece cannot be replaced at the present stage are overcome, the connector is subjected to modular processing, and the connector has the maintainable and detachable functions.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a high-voltage connector. Background Technology

[0002] Connectors operating between 1000V and 120000V or higher are called high-voltage electrical connectors. High-voltage connectors are widely used in aviation, aerospace, nuclear power, and other fields. With the rapid development of high-vacuum high-frequency tubes, high-voltage power supplies, laser systems, and spacecraft propulsion systems, the requirements for high-voltage connectors are becoming increasingly stringent. For high-voltage environments, traditional high-voltage connectors use potting and injection molding to achieve voltage transmission. Relying on potting and injection molding to ensure the withstand voltage rating, when the contacts fail, the entire connector is scrapped and needs to be replaced with a completely new one, resulting in excessively high maintenance costs and wasted manpower and resources.

[0003] In the prior art, Chinese utility model patent CN 204760606 U, filed on November 11, 2015, discloses a detachable connector base forced-fit structure. This utility model discloses a detachable connector base forced-fit structure with rounded corners on the connector contacts and an inner hole and stepped surface on the connector base. The contacts pass through the inner hole of the base via the rounded corners and are secured to the stepped surface, forming a forced-fit connection between the contacts and the base. This patent improves upon the prior art by changing the unidirectional oblique angle on the contacts to rounded corners at both ends, increasing the detachability of the base and contacts in this forced-fit structure, greatly facilitating later maintenance and replacement. However, although this patent allows for contact detachment, if a problem occurs with the connector later, the entire connector still needs to be replaced; it cannot replace individual faulty components of the connector. Utility Model Content

[0004] To address the shortcomings in the aforementioned background technology, this utility model proposes a high-voltage connector with detachable contacts, which solves the problem in the prior art where the original connector is rendered unusable and needs to be replaced with a completely new connector when the contacts fail, resulting in excessively high maintenance costs.

[0005] The technical solution of this utility model is implemented as follows: A high-voltage connector with detachable contacts includes a plug and a socket that mates with the plug. The plug includes a plug housing, and a mounting assembly for fixing the plug contacts is detachably connected inside the plug housing. An interface sealing body is provided inside the mounting assembly. A plug end cap is detachably connected to the tail of the plug housing. The socket includes a socket housing, and a socket insulator corresponding to the interface sealing body and a snap-fit ​​assembly that mates with the socket insulator to encapsulate the socket contacts are provided inside the socket housing. A socket end cap is detachably connected to the tail of the socket housing.

[0006] More preferably, the mounting assembly includes an insulator, which is a stepped cylindrical structure. The insulator is installed inside the plug housing. One side of the insulator has a groove that engages with the interface seal, and the other side of the insulator has an encapsulation component.

[0007] More preferably, the encapsulation component includes an insulating pressure plate installed inside the plug housing, the insulating pressure plate being located between the plug end cap and the insulator, and a sealing wire being provided inside the insulating pressure plate.

[0008] More preferably, the interface sealing body is provided with a snap-fit ​​groove corresponding to the plug contact, and the side wall of the snap-fit ​​groove is provided with a wave-shaped anti-dislodgement protrusion.

[0009] Further preferably, the outer wall of the plug housing is provided with circumferentially distributed anti-misalignment strips. An anti-loosening nut is connected to the plug housing. The inner wall of the socket housing is provided with anti-misalignment grooves corresponding to the anti-misalignment strips.

[0010] More preferably, the outer wall of the socket insulator is provided with at least one anti-rotation protrusion in the circumferential direction, and the anti-rotation protrusion is engaged in an anti-rotation slot in the socket housing.

[0011] More preferably, the snap-fit ​​assembly includes an insulating pressure plate II installed inside the socket housing, the insulating pressure plate II being located between the socket end cover and the socket insulator, and the insulating pressure plate II having a sealing wire II inside.

[0012] More preferably, both the first insulating pressure plate and the second insulating pressure plate are provided with annular grooves, and the annular grooves are provided with through holes that cooperate with the contact elements.

[0013] The beneficial effects of this utility model are as follows: This utility model consists of a plug and a socket, which are modularly disassembled to reduce maintenance costs and overcome the shortcomings of current connectors that are not repairable and whose contacts cannot be replaced. By modularizing the connector, it enables the connector to be repairable and detachable. An interface sealing body is set inside the plug housing to fix and protect the plug contacts, preventing the plug components from shifting or misaligning during insertion, which would affect the insertion efficiency. The encapsulation and insulator form a modular structure to fix the contacts, facilitating the installation and replacement of the contacts. Attached Figure Description

[0014] To more clearly illustrate the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] In the diagram: 1-Plug end cap, 2-Sealing body one, 3-Insulating pressure plate one, 4-Plug housing, 5-Insulator, 6-Interface sealing body, 7-Socket housing, 8-Socket insulator, 9-Insulating pressure plate two, 10-Sealing body two, 11-Socket end cap. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1 As shown in Embodiment 1, a high-voltage connector with detachable contacts includes a plug and a socket that mates with the plug. The plug includes a plug housing 4, within which a mounting assembly for fixing the plug contacts is detachably connected. The mounting assembly contains an interface seal 6. The interface seal 6 within the plug housing 4 is used to fix and protect the plug contacts, preventing misalignment or displacement of the plug components during insertion, thus affecting insertion efficiency. A plug end cap 1 is detachably connected to the tail of the plug housing 4. The socket includes a socket housing 7, within which a socket insulator 8 mates with the interface seal 6 and a snap-fit ​​assembly mates with the socket insulator 8 to encapsulate the socket contacts. A socket end cap 11 is detachably connected to the tail of the socket housing 7. This device consists of a plug and a socket, which are modularly disassembled to form a detachable and replaceable contact structure, reducing maintenance costs.

[0019] Specifically, when a contact malfunctions and needs replacement, the removable tail plug end cover 1 or socket end cover 11 can pull out the corresponding mounting component or snap-fit ​​component, and the wire can then be removed from the insulator 5 to replace the corresponding faulty structure. The process of inserting the contact into the connector is the reverse of the above-described removal process, reducing maintenance costs and overcoming the current shortcomings of connectors being non-repairable and contacts not being replaceable. By modularizing the connector, it enables the connector to have repairable and detachable functions.

[0020] like Figure 1As shown in Embodiment 2, a high-voltage connector with detachable contacts differs from Embodiment 1 in that the mounting assembly includes an insulator 5. The insulator 5 has a stepped cylindrical structure and is installed inside the plug housing 4. The stepped cylindrical shape confines the insulator 5 within the plug housing 4, preventing it from detaching from the end of the plug housing 4. One side of the insulator 5 has a groove for engaging with the interface sealing body 6, and the other side has an encapsulation component. The head end face of the insulator 5 and the head end face of the plug housing 4 are on the same plane, facilitating the mating of the plug and socket. The encapsulation component includes an insulating pressure plate 3 installed inside the plug housing 4. The insulating pressure plate 3 is located between the plug end cover 1 and the insulator 5, and a sealing wire 2 is provided inside the insulating pressure plate 3 for fixing the contact wire. The insulator 5 and the sealing wire 2 cooperate to form a limiting structure for fixing the plug contact, facilitating the disassembly and installation of the plug contact.

[0021] In this embodiment, the interface sealing body 6 is provided with a snap-fit ​​groove corresponding to the plug contact, and the side wall of the snap-fit ​​groove is provided with a wavy anti-disengagement protrusion. The wavy anti-disengagement protrusion is used to ensure the stability of the connection between the plug and the socket. The outer wall of the plug housing 4 is provided with circumferentially distributed anti-misalignment strips. The anti-misalignment strips are used to limit the mating angle between the plug and the socket, and also to prevent the socket and plug from rotating circumferentially and damaging the contact. The plug housing 4 is also connected with an anti-loosening nut. The anti-loosening nut is installed on the outer wall of the plug housing 4 through a loosening ring, and the anti-loosening nut is used to reinforce the connection between the plug and the socket.

[0022] All other structures are the same as in Example 1.

[0023] like Figure 1 As shown in Embodiment 3, a high-voltage connector with detachable contacts differs from Embodiment 2 in that the inner wall of the socket housing 7 is provided with an anti-misalignment groove corresponding to the anti-misalignment strip. The outer wall of the socket insulator 8 is provided with at least one anti-rotation protrusion circumferentially, which engages with an anti-rotation slot within the socket housing 7. The anti-misalignment groove corresponds one-to-one with the anti-misalignment strip, anti-rotation protrusion, and anti-rotation slot, accelerating the alignment of the plug and socket contacts and improving insertion efficiency. When the plug and socket are properly inserted, the anti-misalignment strip is located within the anti-misalignment groove, and the anti-rotation protrusion is located within the anti-rotation slot; furthermore, during insertion, the anti-misalignment strip slides along the anti-misalignment groove, and the anti-rotation protrusion slides along the anti-rotation slot, preventing misalignment and damage to the plug and socket contacts.

[0024] In this embodiment, the snap-fit ​​assembly includes an insulating pressure plate 9 installed inside the socket housing 7. The insulating pressure plate 9 is located between the socket end cover 11 and the socket insulator 8. The socket end cover 11 is used to encapsulate the insulating pressure plate inside the socket housing 7, and the socket end cover 11 and the socket housing 7 are threaded or interference-fitted, allowing for subsequent disassembly and replacement, thus reducing maintenance costs. A sealing wire body 10 is provided inside the insulating pressure plate 9, which is used to fix the wires of the plug contact, ensuring the stability of the connection between the device and the contact. Both the insulating pressure plate 3 and the insulating pressure plate 9 are provided with annular grooves, and through holes that mate with the contact are provided within the annular grooves. The annular grooves mate with the insulator 5, increasing the contact area between the insulating pressure plate and the insulator 5 and strengthening the connection stability between them. Both the plug and socket insulating pressure plates are provided with anti-misalignment grooves, which mate with the corresponding anti-misalignment arc protrusions on the insulator 5, ensuring installation accuracy.

[0025] All other structures are the same as in Example 2.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high voltage connector with detachable contacts comprising a plug and a socket mated with the plug, characterized in that: The plug comprises a plug shell (4), a mounting assembly for fixing plug contact pieces is detachably connected in the plug shell (4), an interface sealing body (6) is arranged in the mounting assembly, a plug end cover (1) is detachably connected at the tail of the plug shell (4); The socket comprises a socket shell (7), a socket insulator (8) corresponding to the interface sealing body (6) and a clamping assembly for packaging socket contact pieces are arranged in the socket shell (7), a socket end cover (11) is detachably connected at the tail of the socket shell (7).

2. The contact detachable high voltage connector according to claim 1, characterized by: The mounting assembly comprises an insulator (5), the insulator (5) is a stepped cylindrical structure, the insulator (5) is installed in the plug shell (4), a groove for clamping and cooperating with the interface sealing body (6) is arranged on one side of the insulator (5), and a packaging piece is arranged on the other side of the insulator (5).

3. The contact detachable high voltage connector according to claim 2, characterized by: The packaging piece comprises an insulating pressing plate one (3) installed in the plug shell (4), the insulating pressing plate one (3) is located between the plug end cover (1) and the insulator (5), and a wire sealing body one (2) is arranged in the insulating pressing plate one (3).

4. The contact detachable high voltage connector according to claim 1, characterized by: The interface sealing body (6) is provided with a clamping groove corresponding to the plug contact piece, and a wave-shaped anti-falling protrusion is arranged on the side wall of the clamping groove.

5. The contact detachable high voltage connector according to claim 3, characterized by: A plurality of anti-mistake strips are arranged on the outer wall of the plug shell (4) in a circumferential direction.

6. The contact detachable high voltage connector according to claim 1, characterized by: A lock nut is connected to the plug shell (4).

7. The contact detachable high voltage connector according to claim 5, characterized by: An anti-mistake groove corresponding to the anti-mistake strip is arranged on the inner wall of the socket shell (7).

8. The contact detachable high voltage connector according to claim 1, characterized by: At least one anti-rotation protrusion is arranged on the outer wall of the socket insulator (8) in a circumferential direction, and the anti-rotation protrusion is clamped in an anti-rotation clamping groove in the socket shell (7).

9. The contact-removable high voltage connector of claim 3 or 5 or 7, wherein: The clamping assembly comprises an insulating pressing plate two (9) installed in the socket shell (7), the insulating pressing plate two (9) is located between the socket end cover (11) and the socket insulator (8), and a wire sealing body two (10) is arranged in the insulating pressing plate two (9).

10. The contact detachable high voltage connector according to claim 9, characterized by: An annular groove is arranged on the insulating pressing plate one (3) and the insulating pressing plate two (9), and a through hole for cooperating with the contact piece is arranged in the annular groove.

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