Hot swap component and circuit breaking apparatus used with circuit breaker

Patent metadata

Field	Value
Publication number	US-11545326-B2
Application number	US-202117352068-A
Country	US
Kind code	B2
Filing date	Jun 18, 2021
Priority date	Dec 21, 2018
Publication date	Jan 3, 2023
Grant date	Jan 3, 2023

Abstract

A hot swap component is provided, which includes a movable portion and a fixed portion that may be electrically connected to each other by using electrical connectors. When a circuit breaker works, a pin that is of an electrical connector and that is located on the movable portion is correspondingly connected to a base located on the fixed portion, and the fixed portion and the circuit breaker inside the movable portion are conducted. When the circuit breaker is faulty and needs to be repaired and replaced, the movable portion can be pulled out from the fixed portion, and the circuit breaker is electrically disconnected from the fixed portion. An anti-electric shock protection mechanism of the fixed portion isolates a first base inside the fixed portion, thereby implementing safe hot swap of the circuit breaker.

First claim

What is claimed is:

1. A hot swap component in alliance with a circuit breaker, wherein the hot swap component comprises a fixed portion and a movable portion that are electrically connected to each other by using electrical connectors, wherein
the electrical connector comprises a first electrical connector and a second electrical connector, the first electrical connector comprises a first pin and a first base, the second electrical connector comprises a second pin and a second base, both the first base and the second base are located on the fixed portion, and both the first pin and the second pin are located on the movable portion;
the first electrical connector is configured to conduct the fixed portion and the circuit breaker when the first pin is inserted into the first base, and the second electrical connector is configured to conduct the fixed portion and the circuit breaker when the second pin is inserted into the second base;
the fixed portion comprises a current input end, a current output end, and an anti-electric shock protection mechanism,
wherein the current input end is electrically connected to the first base, the current output end is electrically connected to the second base, and the anti-electric shock protection mechanism comprises an anti-electric shock protection cover and an adaptive mechanism,
wherein the anti-electric shock protection cover is configured to move between a first position and a second position under an action of external force, and
wherein the adaptive mechanism is configured to move the anti-electric shock protection cover from the second position to the first position when an electrical connection between the fixed portion and the movable portion is removed;

the movable portion comprises a housing and a cover push rod, the housing is configured to accommodate the circuit breaker, and the cover push rod is configured to push, when the movable portion is electrically connected to the fixed portion, the anti-electric shock protection cover to move from the first position to the second position;
when the anti-electric shock protection cover is located at the first position, the first base is electrically isolated inside the fixed portion by using the anti-electric shock protection cover; and
when the anti-electric shock protection cover is located at the second position, the first pin is configured to be inserted into the first base.

2. The hot swap component according to claim 1 , wherein the adaptive mechanism comprises a torsion spring and a guide rod; and
the anti-electric shock protection cover is located on a side that is of the fixed portion and that faces the movable portion when the fixed portion is electrically connected to the movable portion, the guide rod is fastened to a side that is of the anti-electric shock protection cover and that is close to the fixed portion, and the torsion spring is sleeved on the guide rod;
when the first pin is inserted into the first base, the cover push rod of the movable portion pushes the anti-electric shock protection cover to rotate around the guide rod under action of the torsion spring, to push the anti-electric shock protection cover to move from the first position to the second position; and
when the first pin is pulled out from the first base, the anti-electric shock protection cover moves from the second position to the first position under an action from the torsion spring.

3. The hot swap component according to claim 1 , wherein the adaptive mechanism comprises a guide mechanism and a first return spring;
the guide mechanism is located on a side that is of the fixed portion and that faces the movable portion, the guide mechanism and the anti-electric shock protection cover are located on a same plane and are connected to each other, the first return spring is sleeved on the guide mechanism, and a protrusion is provided on a side that is of the anti-electric shock protection cover and that faces the movable portion; and
when the first pin is inserted into the first base, the cover push rod pushes the protrusion, so that the guide mechanism moves along a first direction parallel to an axial direction of the first return spring under an action from the first return spring, and drives the anti-electric shock protection cover to move along the first direction, and then the first pin is inserted into the first base; and
when the first pin is pulled out from the first base, the guide mechanism is reset along a second direction under action of the first return spring, and drives the anti-electric shock protection cover to be reset, wherein the second direction is opposite to the first direction, and the anti-electric shock protection cover is configured to electrically isolate the first base inside the fixed portion.

4. The hot swap component according to claim 1 , wherein each of the first electrical connector and the second electrical connector further comprises a dual-curvature flexible contact sheet and an annular spring that are located on the fixed portion;
a first curvature of the associated dual-curvature flexible contact sheet is sleeved outside each of the first base and the second base, and a second curvature of the corresponding dual-curvature flexible contact sheet is sleeved outside each of the first pin and the second pin;
the annular spring is sleeved on an outer part of each of the first curvature and the second curvature of the dual-curvature flexible contact sheet, and the annular spring is configured to tighten the dual-curvature flexible contact sheet; and
the first pin is inserted into the first base after passing through the dual-curvature flexible contact sheet associated with the first base, and the second pin is inserted into the second base after passing through the dual-curvature flexible contact sheet corresponding to the second base.

5. The hot swap component according to claim 1 , wherein the first electrical connector further comprises a first stroke-in-place detection device, and the second electrical connector further comprises a second stroke-in-place detection device;
the first stroke-in-place detection device is fastened on the first base, the second stroke-in-place detection device is fastened on the second base, and the first stroke-in-place detection device is configured to output a first stroke-in-place signal to a loop monitoring circuit when a stroke of inserting the first pin into the first base is in place;
the second stroke-in-place detection device is configured to output a second stroke-in-place signal to the loop monitoring circuit when a stroke of inserting the second pin into the second base is in place; and
the loop monitoring circuit is configured to, when receiving the first stroke-in-place signal, determine that the stroke of the first pin is in place and, further configured to, when receiving the second stroke-in-place signal, determine that the stroke of the second pin is in place.

6. The hot swap component according to claim 5 , wherein the first stroke-in-place detection device comprises a first dry contact signal contact and a first contact stroke contact, and the second stroke-in-place detection device comprises a second dry contact signal contact and a second contact stroke contact;
both two contact points on the first dry contact signal contact and two contact points on the second dry contact signal contact are connected to the loop monitoring circuit;
the first contact stroke contact is disposed in a bottom groove of the first base, the second contact stroke contact is disposed in a bottom groove of the second base, the first dry contact signal contact is disposed between the first contact stroke contact and a bottom surface of the bottom groove of the first base, and the second dry contact signal contact is disposed between the second

Assignees

• Huawei Digital Power Tech Co Ltd

Inventors

• Zhou Bo
• Pu Xiaofei
• Hu Xiong

Classifications

• H01H71/08 Primary

  Terminals; Connections · CPC title

• H01R13/111

  co-operating with pins having a circular transverse section · CPC title

• H01H2071/0292

  Housing or frames containing grooves or slots for guiding movable parts · CPC title

• H01R13/052

  co-operating with sockets having a circular transverse section · CPC title

• H05K7/14

  Mounting supporting structure in casing or on frame or rack · CPC title