CN-122000240-A - Relay coil terminal leading-out structure

Abstract

The invention relates to the technical field of electric elements and discloses a relay coil terminal leading-out structure, which is used for a high-voltage direct-current relay, wherein the high-voltage direct-current relay comprises a coil assembly and a yoke assembly, the coil assembly is arranged in the yoke assembly, the relay coil terminal leading-out structure comprises a control board and a leading-out assembly, and the control board is arranged in the yoke assembly and is electrically connected with the coil assembly; the leading-out assembly is provided with a leading-out end, the leading-out end is electrically connected with the control board assembly and is used for being connected with an external circuit, the leading-out end is arranged on the outer side of the yoke assembly, the control board is not required to be additionally arranged on the outer side of the yoke assembly, the overall size of the relay is controlled, the development direction of miniaturization and integration of the relay is met, and convenience is brought to upgrading of double coils of a single coil of the relay.

Inventors

• YAN SHENGWANG
• ZHANG CHAOHONG

Assignees

• 东莞市中汇瑞德电子股份有限公司

Dates

Publication Date

20260508

Application Date

20260402

Claims (10)

1. 1. The utility model provides a relay coil terminal extraction structure for high-voltage direct current relay, high-voltage direct current relay includes coil assembly and yoke subassembly, coil assembly locates in the yoke subassembly, its characterized in that, relay coil terminal extraction structure includes: A control board disposed in the yoke assembly and electrically connected to the coil assembly, and The extraction assembly is provided with an extraction end, the extraction end is electrically connected with the control panel assembly and used for being connected with an external circuit, and the extraction end is arranged on the outer side of the yoke assembly.
2. 2. The relay coil terminal lead-out structure according to claim 1, wherein the control board is formed with a first positioning portion, and the lead-out assembly is formed with a second positioning portion; The first positioning part is matched with the second positioning part in a positioning way.
3. 3. The relay coil terminal lead-out structure according to claim 2, wherein the first positioning portion is a positioning hole, and the second positioning portion is a positioning protrusion; the positioning protrusion is in plug-in positioning fit with the positioning hole.
4. 4. The relay coil terminal extraction structure according to claim 3, wherein the first positioning portion includes at least two of the positioning holes, and the second positioning portion includes at least two of the positioning projections; the positioning holes are in one-to-one corresponding positioning fit with the positioning protrusions.
5. 5. The relay coil terminal lead-out structure according to any one of claims 1 to 4, wherein the lead-out assembly includes an insulating connecting member and a conductive member; the insulating connecting piece is connected with the control board; The conductive piece penetrates through the insulating connecting piece along the opposite arrangement direction of the lead-out assembly and the control board, one end of the conductive piece is electrically connected with the control board, and the other end of the conductive piece forms the lead-out end.
6. 6. The relay coil terminal lead-out structure according to claim 5, wherein the insulating connecting member has an insulating blocking portion; The insulating separation part protrudes from the side surface of the insulating connecting piece, which is opposite to the control board, and the insulating separation part is positioned on the part of the periphery of the leading-out end.
7. 7. The relay coil terminal lead-out structure according to claim 6, wherein the insulating barrier is two insulating barriers arranged at intervals; An extraction channel is formed between the two insulating baffles, the extraction end is positioned in the extraction channel, and the extraction channel is used for avoiding an external circuit to be connected with the extraction end.
8. 8. A relay coil terminal lead-out structure according to any one of claims 1 to 4, wherein the lead-out terminals are annularly arranged.
9. 9. The relay coil terminal lead-out structure according to any one of claims 1 to 4, further comprising an insulating shield plate formed with a positioning clip groove, the lead-out assembly having a positioning section; the positioning clamping groove is matched with the positioning section in a positioning way; The insulation protection plate is located on one side of the control plate, facing the extraction assembly, and arranged in the yoke assembly, and the projection of the insulation protection plate in the thickness direction of the control plate covers the control plate.
10. 10. The relay coil terminal lead-out structure according to claim 9, wherein the insulating shield plate has insulating side plates protruding from the insulating shield plate toward the side face of the control board, the insulating side plates being located on both sides of the control board.

Description

Relay coil terminal leading-out structure Technical Field The invention relates to the technical field of electrical elements, in particular to a relay coil terminal leading-out structure. Background The high-voltage direct-current relay is used as a core executive component in the power control system and is widely applied to the fields of new energy automobiles, energy storage systems, industrial direct-current power grids and the like. Along with the development of power electronic technology and the continuous improvement of the requirements of application scenes on power density and response speed, the relay with the double-coil structure gradually becomes the main flow direction of industry upgrading iteration due to the excellent performance. Compared with the traditional single-coil design, the double-coil structure realizes time-sharing driving of the coils through independent control logic, reduces the overall power consumption while obviously improving the actuation reliability, and effectively solves the technical problem that the single coil does not act rapidly enough under a high-voltage direct-current scene. However, in prior art product designs and engineering implementations, upgrading single coil relays to dual coil structures faced significant structural layout and engineering application bottlenecks. At present, coil lead-out terminals of a conventional high-voltage direct-current relay are usually directly extended to the outside of a yoke and are connected with an external circuit in a welding or plugging mode. The structural design is a classical scheme aiming at single-coil control logic, and the wiring mode is simple and direct. To introduce dual-coil control logic under the existing architecture, a dedicated control board must be added to achieve precise control over the dual-coil current paths and on-off timing. But is limited by the original layout mode of the coil terminals, and the existing design scheme can only adopt the form of an external control board. The external control board means that the relay body needs additional installation space and a fixing bracket, so that the axial or transverse size of the whole device is greatly increased. The method runs counter to the current trend of the power equipment towards miniaturization and high-density integration, increases the installation difficulty, and also limits the application prospect of the power equipment in compact equipment such as a high-density energy storage cabinet, a small-sized vehicle-mounted inverter and the like. Disclosure of Invention The invention mainly aims to provide a relay coil terminal leading-out structure which aims to control the overall size of a relay and provide convenience for upgrading a single coil and a double coil of the relay. In order to achieve the above object, the present invention provides a relay coil terminal lead-out structure for a high voltage dc relay, the high voltage dc relay including a coil assembly and a yoke assembly, the coil assembly being disposed in the yoke assembly, the relay coil terminal lead-out structure comprising: A control board disposed in the yoke assembly and electrically connected to the coil assembly, and The extraction assembly is provided with an extraction end, the extraction end is electrically connected with the control panel assembly and used for being connected with an external circuit, and the extraction end is arranged on the outer side of the yoke assembly. In one embodiment, the control board is formed with a first positioning portion, and the lead-out assembly is formed with a second positioning portion; The first positioning part is matched with the second positioning part in a positioning way. In an embodiment, the first positioning portion is a positioning hole, and the second positioning portion is a positioning protrusion; the positioning protrusion is in plug-in positioning fit with the positioning hole. In an embodiment, the first positioning portion includes at least two positioning holes, and the second positioning portion includes at least two positioning protrusions; the positioning holes are in one-to-one corresponding positioning fit with the positioning protrusions. In one embodiment, the lead-out assembly includes an insulating connector and a conductive member; the insulating connecting piece is connected with the control board; The conductive piece penetrates through the insulating connecting piece along the opposite arrangement direction of the lead-out assembly and the control board, one end of the conductive piece is electrically connected with the control board, and the other end of the conductive piece forms the lead-out end. In one embodiment, the insulating connector has an insulating barrier; The insulating separation part protrudes from the side surface of the insulating connecting piece, which is opposite to the control board, and the insulating separation part is positioned on the part of the periphery of the lea