CN-224232601-U - High-voltage contactor

CN224232601UCN 224232601 UCN224232601 UCN 224232601UCN-224232601-U

Abstract

The utility model discloses a high-voltage contactor, and relates to the technical field of contactors. The high-voltage contactor comprises a contactor body and a temperature measuring part, wherein the temperature measuring part comprises a first plate, a temperature measuring component and an insulating heat conducting piece, the insulating heat conducting piece is used for realizing heat conduction between a contact of the high-voltage contactor and the temperature measuring component, and further the contact temperature of the high-voltage contactor is monitored in real time through the temperature measuring component, and when the contact temperature of the high-voltage contactor is too high, an external control piece can control the high-voltage contactor to stop working in time; the high-voltage contactor is effectively prevented from being continuously operated at high temperature, so that the cutting-off performance of the high-voltage contactor is reduced (or burnt out due to high temperature), the use safety of the high-voltage contactor is improved, and frequent faults of a charging pile are avoided.

Inventors

LI YANG
ZHANG CHAOHONG
HUANG JIAJIAN

Assignees

东莞市中汇瑞德电子股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250603

Claims (10)

1. A high voltage contactor having intersecting X and Z directions, comprising: A housing having a placement cavity; A contactor body accommodated in the accommodation chamber, having an upper surface on one side in the Z direction, contacts of the contactor body protruding outward from the upper surface, and And the temperature measuring part is arranged on the upper surface and is used for monitoring the temperature of the contact of the contactor body.
2. The high-voltage contactor according to claim 1, wherein said temperature measuring portion includes: The first plate is arranged on the upper surface, a perforation is arranged on the first plate in a penetrating way along the Z direction, the contact head upwards penetrates out of the perforation, a containing groove is arranged on at least part of the upper end surface of the first plate, the containing groove is provided with a first communication opening communicated with the perforation, and The temperature measuring assembly is accommodated in the accommodating groove; The insulating heat conducting piece is arranged in the accommodating groove and is contacted with the temperature measuring assembly, and at least part of the insulating heat conducting piece is contacted with the contact through the first communication port.
3. The high voltage contactor according to claim 2, wherein said temperature measuring assembly comprises: a temperature sensing part arranged in the accommodating groove and One end of the first wire is electrically connected with the temperature sensing piece; One end of the second wire is electrically connected with the temperature sensing piece; the other ends of the first wire and the second wire are used for being electrically connected with an external control member.
4. The high voltage contactor according to claim 3, wherein said receiving groove comprises: A first groove structure for accommodating the temperature sensing member, the first groove structure having the first communication port toward the perforated side, and The second groove structure is used for accommodating the first lead and the second lead; The second communication port is arranged between the first groove structure and the second groove structure and is used for communicating the first groove structure with the second groove structure; And a second opening is formed in one side of the second groove structure, which is away from the upper surface, and is used for placing the first lead and the second lead in the second groove structure.
5. The high voltage contactor according to claim 4, wherein said second slot structure comprises: A first through groove for placing the first wire, the first through groove having a first side wall and a second side wall disposed opposite to each other, the first side wall having at least one first protrusion disposed toward the second side wall, the second side wall having at least one second protrusion disposed toward the first side wall, the first protrusion and the second protrusion being disposed opposite to each other, a space between the first protrusion and the second protrusion forming a clamping space for clamping the first wire, and The second through groove is used for placing the second wire, and is provided with a third side wall and a fourth side wall which are oppositely arranged, at least one third bulge is arranged on one side, facing the fourth side wall, of the third side wall, at least one fourth bulge is arranged on one side, facing the third side wall, of the fourth side wall, the positions of the third bulge and the fourth bulge are opposite, and a clamping space for clamping the second wire is formed by the interval between the third bulge and the fourth bulge; The first through groove and the second through groove are communicated with the second communication port.
6. The high-voltage contactor of claim 3, the high-voltage contactor is characterized by further comprising: A first conductive switching piece embedded in the first plate, one end of the first conductive switching piece being used for electrically connecting with the first wire, and The second conductive switching piece is embedded in the first plate, and one end of the second conductive switching piece is used for being electrically connected with the second wire; The other ends of the first conductive switching piece and the second conductive switching piece at least partially extend outwards from the first plate for being electrically connected with the external control piece.
7. The high-voltage contactor according to any one of claims 2 to 6, wherein the perforated inner diameter is larger than the contact outer diameter so that a space between a circumferential side wall of the contact and an inner wall of the perforated forms a pouring space, and the first communication port communicates with the pouring space and the accommodation groove; The insulating heat-conducting piece is heat-conducting glue, and the heat-conducting glue is filled in the accommodating groove and the filling space.
8. The high voltage contactor according to any of claims 2-6, wherein said first plate member is an insulating structural member.
9. The high voltage contactor according to claim 1, wherein said housing comprises: A housing having a housing chamber with a first inlet at one side thereof in the Z direction for placing the contactor body into the housing chamber, and The contact comprises a shell, a cover body and a contact body, wherein the cover body is covered on the shell, so that the cover body and the shell surround to form a placing cavity for placing the contact body, and a through hole is formed in the side, away from the shell, of the cover body in the Z direction in a penetrating manner, so that the contact extends out of the placing cavity through the through hole.
10. The high voltage contactor according to claim 9, wherein in said X direction, both side walls of said contactor body are spaced apart from an inner side wall of said housing and form a relief space; In the X direction, extension plates are respectively arranged on two sides of the cover body, and a bump is convexly arranged on one side of the extension plate, which is away from the contactor body; In the X direction, two side walls of the shell are respectively provided with a clamping hole matched with the convex blocks in a clamping way, and the clamping holes penetrate through the side walls of the shell along the X direction; the cover body is covered on the shell, so that the extension plate is inserted into the avoidance space and the protruding block is clamped in the corresponding clamping hole.

Description

High-voltage contactor Technical Field The utility model relates to the technical field of contactors, in particular to a high-voltage contactor. Background At present, as the current of a charging pile in the market is higher and smaller, the volume of a high-voltage contactor is smaller and the heat dissipation space of a main contact is smaller, under the condition, if the charging pile is used for a long time in hot weather, the high-voltage contactor bears different overcurrent for a long time in a high-temperature environment, the contact temperature of the high-voltage contactor is overhigh, the contactor stops working or the cutting performance is reduced with a certain probability, the charging pile is finally failed, and the charging pile is frequently abnormal, so that the maintenance cost is increased and the use experience of a terminal customer is influenced. Disclosure of utility model The utility model mainly aims to provide a high-voltage contactor, which aims to solve the problem that a charging pile is easy to fail due to long-time operation at high temperature of the existing high-voltage contactor. To achieve the above object, the present utility model provides a high voltage contactor having intersecting X-direction and Z-direction, comprising: A housing having a placement cavity; The contactor comprises a placing cavity, a contactor body, a temperature measuring part and a temperature measuring part, wherein the placing cavity is arranged in the contactor body, one side in the Z direction of the contactor body is provided with an upper surface, a contact head of the contactor body extends outwards from the upper surface, and the temperature measuring part is arranged on the upper surface and is used for monitoring the temperature of a contact head of the contactor body. In one embodiment, the temperature measuring part includes: The first plate is arranged on the upper surface, a perforation is arranged on the first plate in a penetrating way along the Z direction, the contact head upwards penetrates out of the perforation, a containing groove is arranged on at least part of the upper end surface of the first plate, the containing groove is provided with a first communication opening communicated with the perforation, and The temperature measuring assembly is accommodated in the accommodating groove; The insulating heat conducting piece is arranged in the accommodating groove and is contacted with the temperature measuring assembly, and at least part of the insulating heat conducting piece is contacted with the contact through the first communication port. In one embodiment, the temperature measuring assembly comprises: a temperature sensing part arranged in the accommodating groove and One end of the first wire is electrically connected with the temperature sensing piece; One end of the second wire is electrically connected with the temperature sensing piece; the other ends of the first wire and the second wire are used for being electrically connected with an external control member. In one embodiment, the accommodating groove includes: A first groove structure for accommodating the temperature sensing member, the first groove structure having the first communication port toward the perforated side, and The second groove structure is used for accommodating the first lead and the second lead; The second communication port is arranged between the first groove structure and the second groove structure and is used for communicating the first groove structure with the second groove structure; And a second opening is formed in one side of the second groove structure, which is away from the upper surface, and is used for placing the first lead and the second lead in the second groove structure. In one embodiment, the second slot structure comprises: A first through groove for placing the first wire, the first through groove having a first side wall and a second side wall disposed opposite to each other, the first side wall having at least one first protrusion disposed toward the second side wall, the second side wall having at least one second protrusion disposed toward the first side wall, the first protrusion and the second protrusion being disposed opposite to each other, a space between the first protrusion and the second protrusion forming a clamping space for clamping the first wire, and The second through groove is used for placing the second wire, and is provided with a third side wall and a fourth side wall which are oppositely arranged, at least one third bulge is arranged on one side, facing the fourth side wall, of the third side wall, at least one fourth bulge is arranged on one side, facing the third side wall, of the fourth side wall, the positions of the third bulge and the fourth bulge are opposite, and a clamping space for clamping the second wire is formed by the interval between the third bulge and the fourth bulge; The first through groove and the second through groove