Remote switch-off mechanism and rotary switch

Patent metadata

Field	Value
Publication number	US-12300447-B2
Application number	US-202318157683-A
Country	US
Kind code	B2
Filing date	Jan 20, 2023
Priority date	Jul 20, 2020
Publication date	May 13, 2025
Grant date	May 13, 2025

Abstract

A remote switch-off mechanism and a rotary switch relates to the field of electrical technologies. A housing, an energy storage component, and a tripping component are provided. The energy storage component includes a latch, an energy storage spring, a rotating shaft, and an energy storage panel connected to the rotating shaft, an abutting portion is disposed on the energy storage panel, a first end of the energy storage spring is clamped to the housing, and a second end of the energy storage spring abuts against the abutting portion. The latch includes a hinged portion hinged to the housing, a limiting portion for limiting the second end of the energy storage spring, and a tripping portion that cooperates with the tripping component, and an elastic member is disposed between the latch and the housing, so that the tripping portion has a trend of moving toward the tripping component.

First claim

What is claimed is:

1. A remote switch-off mechanism, comprising:
a housing, an energy storage component, and a tripping component,
wherein the energy storage component comprises a latch, an energy storage spring, a rotating shaft, and an energy storage panel connected to the rotating shaft; an abutting portion is disposed on the energy storage panel, a first end of the energy storage spring is clamped to the housing, and a second end of the energy storage spring abuts against the abutting portion;
the latch comprises a hinged portion hinged to the housing, a limiting portion configured to engage with, and to limit a motion of, the second end of the energy storage spring, a tripping portion, and an elastic member is disposed between the latch and the housing, wherein the tripping portion has a bias of moving toward the tripping component; and the tripping component is configured to enable the limiting portion to disengage with the second end of the energy storage spring so that the limiting portion no longer limits the motion of the second end of the energy storage spring, wherein the rotating shaft rotates to a switch-off position.

2. The remote switch-off mechanism according to claim 1 , wherein a guide surface is disposed between the hinged portion and the limiting portion, and a limiting surface is disposed on a side of the limiting portion that is away from the guide surface.

3. The remote switch-off mechanism according to claim 1 , wherein the latch comprises a support body, and the tripping portion comprises a folded edge connected to the support body and a force-bearing portion connected to the folded edge.

4. The remote switch-off mechanism according to claim 1 , wherein the tripping component is any one of a magnetic flux converter, a shunt release, an undervoltage release, or an overvoltage release.

5. The remote switch-off mechanism according to claim 1 , wherein the housing comprises an upper cover, a limiting slot is disposed on the upper cover, and the first end of the energy storage spring is clamped to the housing by the limiting slot.

6. The remote switch-off mechanism according to claim 5 , wherein a hollow post is further disposed on the upper cover, and the rotating shaft passes through the hollow post and is rotatably connected to the upper cover.

7. The remote switch-off mechanism according to claim 6 , wherein the energy storage spring comprises an energy storage body, and a first torsion arm and a second torsion arm that are separately connected to the energy storage body, and the energy storage body is sleeved on an outer circle of the hollow post.

8. The remote switch-off mechanism according to claim 5 , wherein a limiting protrusion is disposed between the tripping portion and the limiting portion, the housing further comprises a mounting base connected to the upper cover, and the limiting protrusion cooperates with the mounting base to limit the latch.

9. The remote switch-off mechanism according to claim 8 , wherein the elastic member is disposed between the latch and the upper cover, or the elastic member is disposed between the latch and the mounting base.

10. A rotary switch, comprising a remote switch-off mechanism and an on-off component connected to the remote switch-off mechanism, wherein the on-off component comprises a fixed-contact component and a moving-contact component that is connected to the remote switch-off mechanism for transmission;
wherein the remote switch-off mechanism comprises a housing, an energy storage component, and a tripping component,
wherein the energy storage component comprises a latch, an energy storage spring, a rotating shaft, and an energy storage panel connected to the rotating shaft;
an abutting portion is disposed on the energy storage panel, a first end of the energy storage spring is clamped to the housing, and a second end of the energy storage spring abuts against the abutting portion;
the latch comprises a hinged portion hinged to the housing, a limiting portion configured to engage with, and to limit a motion of, the second end of the energy storage spring, a tripping portion, and an elastic member is disposed between the latch and the housing, wherein the tripping portion has a bias of moving toward the tripping component; and
the tripping component is configured to enable the limiting portion to disengage with the second end of the energy storage spring so that the limiting portion no longer limits the motion of the second end of the energy storage spring, wherein the rotating shaft rotates to a switch-off position.

11. The rotary switch according to claim 10 , wherein a guide surface is disposed between the hinged portion and the limiting portion, and a limiting surface is disposed on a side of the limiting portion that is away from the guide surface.

12. The rotary switch according to claim 10 , wherein the housing comprises an upper cover, a limiting slot is disposed on the upper cover, and the first end of the energy storage spring is clamped to the housing by the limiting slot.

13. The rotary switch according to claim 12 , wherein a hollow post is further disposed on the upper cover, and the rotating shaft passes through the hollow post and is rotatably connected to the upper cover.

14. The rotary switch according to claim 13 , wherein the energy storage spring comprises an energy storage body, and a first torsion arm and a second torsion arm that are separately connected to the energy storage body, and the energy storage body is sleeved on an outer circle of the hollow post.

Assignees

• Huawei Digital Power Tech Co Ltd
• Shanghai Liangxin Electrical

Inventors

• Shi Jian
• Wang Hao
• Shi Wei
• Zhang Xiufeng
• Tian Xiaokang

Classifications

• H01H3/3042

  using a torsion spring · CPC title

• H01H71/56

  actuated by rotatable knob or wheel · CPC title

• H01H19/64

  Encased switches adapted for ganged operation when assembled in a line with identical switches, e.g. stacked switches · CPC title

• H01H2003/3089

  Devices for manual releasing of locked charged spring motor; Devices for remote releasing · CPC title

• H01H19/24 Primary

  acting with snap action · CPC title