High-voltage DC relay

Patent metadata

Field	Value
Publication number	US-11501939-B2
Application number	US-202016879996-A
Country	US
Kind code	B2
Filing date	May 21, 2020
Priority date	May 21, 2019
Publication date	Nov 15, 2022
Grant date	Nov 15, 2022

Abstract

A high-voltage DC relay of the present disclosure, including a housing, two main lead-out terminals, a main movable piece and a pushing rod component; and the relay further including two auxiliary lead-out terminals, an auxiliary movable spring, and an insulating partition plate, the two auxiliary lead-out terminals are respectively installed on the same side of a connecting line of the two main lead-out terminals corresponding to the top of the housing, and bottoms of the two auxiliary lead-out terminals are respectively located in the housing; the auxiliary movable spring is insulated from the movable assembly and fixed to the movable assembly through the insulating partition plate, so as to follow a movement of the movable assembly to achieve bridging with the two auxiliary lead-out terminals.

First claim

What is claimed is:

1. A high-voltage DC relay, comprising a housing, two main lead-out terminals, a main movable piece and a pushing rod component; the two main lead-out terminals are respectively mounted on a top of the housing and bottom ends of the two main lead-out terminals are respectively located inside the housing, the main movable piece is accommodated in the housing and fitted under the two main lead-out terminals, so that the main movable piece is bridged with the two main lead-out terminals; the main movable piece and the pushing rod component are assembled together to form a movable assembly; the pushing rod component comprising a U-shaped bracket, a first fixing piece and a pushing rod, wherein one end of the pushing rod and the first fixing piece are combined into a pushing rod head by injection molding, and the other end of the pushing rod is configured to serves as a tail and is connected to a magnetic circuit portion, two ends of the U-shaped bracket are connected downward to the first fixing piece protruding from the pushing rod head to both sides thereof, and the main movable piece is installed in the U-shaped bracket through the main spring, one end of the main spring is configured to press the main movable piece against the inside of the top of the U-shaped bracket, and the other end of the main spring is configured to press against the pushing rod head; wherein the relay further comprising two auxiliary lead-out terminals, an auxiliary movable spring and an insulating partition plate, the two auxiliary lead-out terminals are respectively installed on the same side of a plane extending across the two main lead-out terminals corresponding to the top of the housing, and bottoms of the two auxiliary lead-out terminals are respectively located in the housing; the auxiliary movable spring is insulated from the movable assembly and fixed to the movable assembly through the insulating partition plate, so as to follow a movement of the movable assembly to achieve bridging with the two auxiliary lead-out terminals; and vertical portion of the auxiliary movable spring is overlapped completely with vertical portion of the insulating partition plate, the insulating partition plate being positioned to insulate the auxiliary movable spring from the main movable piece; the auxiliary movable spring comprising a connection portion for fixing with the insulating partition plate, a contact portion for matching with the bottom ends of the two auxiliary lead-out terminals, and a main body portion between the connection portion and the contact portion, the contact portion is disposed along a horizontal direction, the main body portion and the insulating partition plate are both disposed along the vertical direction, and the main body portion is located outside one side of the insulating partition plate and the other side of the insulating partition plate is connected with the movable assembly.

2. The high-voltage DC relay according to claim 1 , wherein the auxiliary movable spring is an U-shaped structure, a bottom of the U shape of the U-shaped structure is arranged as the contact portion, both sides of the U shape of the U-shaped structure are arranged as the main body portion, ends of both sides of the U shape of the U-shaped structure are arranged as the connection portion, and the connection portion is at the top, the contact portion is at the bottom.

3. The high-voltage DC relay according to claim 1 , wherein the auxiliary movable spring is an U-shaped structure, a bottom of the U shape of the U-shaped structure is arranged as the connection portion, both sides of the U shape of the U-shaped structure are arranged as the main body portion, ends of both sides of the U shape of the U-shaped structure are arranged as the contact portion, and the connection portion is at the top, the contact portion is at the bottom.

4. The high-voltage DC relay according to claim 1 , wherein the auxiliary movable spring is a mouth-shaped structure, the auxiliary movable spring is a mouth-shaped structure, an upper side of the mouth shape of the mouth-shaped structure is arranged as the connection portion, two sides of the mouth shape of the mouth-shaped structure are arranged as the main body portion, and a bottom side of the mouth shape of the mouth-shaped structure is arranged as the contact portion.

5. The high-voltage DC relay according to claim 2 , wherein the main body portion of the auxiliary movable spring is further provided with a bending portion protruding in a direction away from the insulating partition plate.

6. The high-voltage DC relay according to claim 2 , wherein the connection portion of the auxiliary movable spring is embedded in the insulating partition plate by injection molding, so that the connection portion of the auxiliary movable spring is fixed to the insulating partition plate.

7. The high-voltage DC relay according to claim 6 , wherein the connection portion of the auxiliary movable spring is bent horizontally or vertically, and embedded in the insulating partition plate.

8. The high-voltage DC relay according to claim 6 , wherein the connection portion of the auxiliary movable spring is further provided with a first through hole to allow a plastic body to enter the first through hole during injection.

9. The high-voltage DC relay according to claim 2 , wherein the connection portion of the auxiliary movable spring is fixed on one side of the insulating partition plate by interference fit or hot riveting, at least one first convex bud is provided on one side of the insulating partition plate, the connection portion of the auxiliary movable spring is configured to extend in the vertical direction, and at least one second through hole is provided in the connection portion, the first convex bud of the insulating partition plate are inserted into the second through hole of the auxiliary movable spring and fixed by an interference method or a hot riveting method.

10. The high-voltage DC relay according to claim 1 , wherein the other side of the insulating partition plate is fixed to the main movable piece by a second fixing piece, the second fixing piece is arranged horizontally, one end of the second fixing piece is fixed to the insulating partition plate, and the other end of the second fixing piece is fixed to a bottom surface of the main movable piece by riveting.

11. The high-voltage DC relay according to claim 10 , wherein the main movable piece is provided with a second convex bud projecting downward, the other end of the second fixing piece is provided with a third through hole, the second convex bud of the main movable piece is fitted in the third through hole of the second fixing piece and fixed by riveting.

12. The high-voltage DC relay according to claim 10 , wherein the one end of the second fixing piece is embedded in the insulating partition by injection molding, so that the one end of the second fixing piece is fixed to the insulating partition plate.

13. The high-voltage DC relay according to claim 1 , wherein the other side of the insulating partition plate is integrally formed with a plastic body portion of the pushing rod head by hot riveting method.

14. The high-voltage DC relay according to claim 1 , wherein the other side of the insulating partition plate is fixed to a top of the U-shaped bracket through a third fixing piece, the third fixing piece is arranged horizontally, one end of the third fixing piece is fixed to the insulating partition plate, and the other end of the third fixing piece is fixed to a top surface of the top of the U-shaped bracket by riveting.

15. The high-voltage DC relay according to cl

Assignees

• Xiamen Hongfa Electric Power Controls Co Ltd

Inventors

• Zhong Shuming
• Dai Wenguang
• Wu Zhuxiong

Classifications

• H01H50/045

  Details particular to contactors (H01H50/042 takes precedence) · CPC title

• H01H2001/265

  having special features for supporting, locating or pre-stressing the contact blade springs · CPC title

• H01H50/58 Primary

  Driving arrangements structurally associated therewith; Mounting of driving arrangements on armature · CPC title

• H01H50/02

  Bases; Casings; Covers (frames for mounting two or more relays or for mounting a relay and another electric component H02B1/01, H04Q1/08, H05K) · CPC title

• H01H50/546

  for contactors having bridging contacts · CPC title