WO2022135036A1

WO2022135036A1 - Power taking mechanism of test device of circuit breaker

Info

Publication number: WO2022135036A1
Application number: PCT/CN2021/133615
Authority: WO
Inventors: 周维峰; 林凯; 胡广召
Original assignee: 浙江奥来电器有限公司
Priority date: 2020-12-25
Filing date: 2021-11-26
Publication date: 2022-06-30
Also published as: CN112635259A

Abstract

Provided is a circuit breaker, in particular a power taking mechanism of a test device inside the circuit breaker. The following technical solutions are used: a power taking mechanism of a test device of a circuit breaker, characterized in that: a first extension arm (51) of a torsion spring (5) abuts against and is provided on a first end (41) of a push rod (4), and a second end (42) of the push rod (4) and a movable contact mounting base (7) of the circuit breaker are correspondingly provided; the movable contact mounting base (7) rotates to drive the push rod (4) to move; a notch (61) is provided on the upper side edge of a trip unit magnetic yoke (6) of the circuit breaker, and the first extension arm (51) of the torsion spring (5) is located at the notch (61); after the circuit breaker is switched off, the movable contact mounting base (7) pushes the push rod (4) to move the compression torsion spring (5) so that the first extension arm (51) of the torsion spring (5) is separated from the magnetic yoke (6). By using the solution, the problem existing in the prior art is overcome, and a test device power taking mechanism which can achieve no power taking after the circuit breaker is switched off is provided no matter how to wire.

Description

A circuit breaker test device power taking mechanism

technical field

The invention relates to a circuit breaker, in particular to a power taking mechanism of a test device inside the circuit breaker.

Background technique

Leakage circuit breaker products generally indicate the incoming and outgoing ends on the product, and both upper and lower incoming lines may appear during the user's use and wiring process, causing great trouble to users. Some products test circuits or circuit boards. When the handle is in the closed position, the circuit board and the test circuit have electricity. When the product handle is in the disconnected position, the product circuit board and the test circuit have no electricity, but when the user uses the product, the handle is locked or blocked by other objects. When the handle is not in the disconnected position, there is electricity on the circuit board, which will cause the circuit board to burn. Another product, the spring of the power supply is not positioned firmly, and there is a failure phenomenon, causing quality and safety hazards.

SUMMARY OF THE INVENTION

The invention overcomes the problems existing in the prior art, and provides a new type of test device power taking mechanism that can not take power after the circuit breaker is switched off, no matter how the connection is made.

In order to achieve the above object, the present invention adopts the following technical scheme: a test device power taking mechanism of a circuit breaker, characterized in that: it includes a block arranged on the base, and a chute is formed between the block, and the chute is in the chute. A push rod is provided, and the push rod is placed between the handle of the circuit breaker and the yoke of the release of the circuit breaker, a pin shaft is arranged on the base, a torsion spring is sleeved on the pin shaft, and the first extension arm of the torsion spring is arranged in contact with the push rod. On the first end of the rod, the second end of the push rod is arranged corresponding to the movable contact mounting seat of the circuit breaker. The rotation of the movable contact mounting seat can drive the push rod to move. The upper side of the release yoke of the circuit breaker There is a gap on it, and the first extension arm of the torsion spring is located at the gap. After the circuit breaker is opened, the moving contact mounting seat pushes the push rod to move the compression spring to separate the first extension arm of the torsion spring from the yoke, and the circuit breaker is closed. After the brake, the movable contact mounting seat releases the push rod, and the push rod moves under the elastic force of the torsion spring to make the first extension arm of the torsion spring contact the inner wall of the yoke gap.

By adopting the above solution, the power taking of the torsion spring is realized from the magnetic yoke of the release, in addition, the push rod and the movable contact mounting seat cooperate to realize the movement, and the push rod pushes the first extension arm of the torsion spring to move in the gap of the magnetic yoke To achieve contact or separation with the yoke, the above-mentioned way of taking electricity can separate the first extension arm from the yoke after the moving contact is disconnected, and will not contact, so that there will be no electricity when the test button is pressed, which protects the circuit breaker. How to wire the circuit breaker, after the circuit breaker is disconnected, the circuit board is always without electricity, which improves the life of the circuit board.

A further arrangement of the present invention is: both the first end and the second end of the push rod are upwardly tilted, the end of the first end of the push rod is provided with a clamping groove, and the first extension arm of the torsion spring is placed in the clamping groove, The inner side of the first end is provided with a protective plate downward, the gap of the magnetic yoke is a U-shaped gap, the protective plate corresponds to the inner side of the U-shaped gap, and the top of the second end is set as an arc surface.

By adopting the above solution, the first extension arm can be well prevented from accidentally contacting the magnetic yoke, which further protects the product. In addition, the second end is set as an arc surface, so that the direction of force is basically the same, and the sliding of the push rod is well guaranteed. .

A further arrangement of the present invention is as follows: the base is provided with five groups of clamping blocks, the first group of clamping blocks is disposed in front of the first end of the push rod, the second group of clamping blocks is disposed above the second end of the push rod, and the third group of clamping blocks is disposed above the second end of the push rod. The first group and the fourth group of clamping blocks are arranged above the middle position of the push rod, the fifth group of clamping blocks is arranged below the middle of the push rod, and the upper side of the magnetic yoke is arranged close to the lower part of the push rod; The bracket is provided with a sixth group of clamping blocks, and the sixth group of clamping blocks is located above the first end of the push rod.

By adopting the above solution, the purpose is to better limit the position of the push rod, which is also to ensure the stable operation of the push rod, and will not cause problems such as dislocation movement or stuck, and further ensure the safety of the product.

The present invention will be further described below in conjunction with specific embodiments.

Description of drawings

1 is a structural diagram of the cooperation between a push rod and a base when the circuit breaker is disconnected according to an embodiment of the present invention;

2 is a structural diagram of the cooperation between a push rod and a bracket when the circuit breaker is disconnected according to an embodiment of the present invention;

3 is a three-dimensional position structure diagram of the circuit breaker when the circuit breaker is disconnected according to the embodiment of the present invention;

FIG. 4 is a front structural view of the circuit breaker when the circuit breaker is closed according to an embodiment of the present invention;

5 is a rear view structural view of the circuit breaker according to the embodiment of the present invention when it is closed;

FIG. 6 is a structural diagram of a circuit breaker base according to an embodiment of the present invention;

7 is a perspective view of a push rod according to an embodiment of the present invention;

8 is a structural diagram of a moving contact mounting seat according to an embodiment of the present invention;

9 is a structural diagram of a stent according to an embodiment of the present invention;

FIG. 10 is a structural diagram of a magnetic yoke according to an embodiment of the present invention.

Detailed ways

As shown in Fig. 1-Fig. 10, a power take-off mechanism of a test device of a circuit breaker includes a clamping block arranged on a base 1, a chute 3 is formed between the clamping blocks, and a push rod is arranged in the chute 3 4. The push rod 4 is placed between the circuit breaker handle and the tripper yoke 6 of the circuit breaker. A pin shaft 11 is set on the base 1, and a torsion spring 5 is sleeved on the pin shaft 11. The first extension arm of the torsion spring 5 51 is arranged against the first end 41 of the push rod 4, and the second end 42 of the push rod 4 is set corresponding to the movable contact mounting seat 7 of the circuit breaker. The rotation of the movable contact mounting seat 7 can drive the push rod 4 to move, so A gap 61 is provided on the upper side of the tripper yoke 6 of the circuit breaker, and the first extension arm 51 of the torsion spring 5 is located at the gap 61. After the circuit breaker is opened, the movable contact mounting seat 7 pushes the push rod 4 to move and compress. The torsion spring 5 separates the first extension arm 51 of the torsion spring 5 from the yoke 6. After the circuit breaker is closed, the movable contact mounting seat 7 releases the push rod 4, and the push rod 4 moves under the elastic force of the torsion spring 5 to make the torsion spring The first extension arm 51 of the yoke 6 is in contact with the inner wall at the notch 61 of the yoke 6 . By adopting the above scheme, the power of the torsion spring 5 is obtained from the yoke 6 of the release, and the push rod 4 cooperates with the movable contact mounting seat 7 to realize the movement, and the push rod 4 pushes the first extension arm 51 of the torsion spring 5 In the gap of the magnetic yoke 6, the contact or separation with the magnetic yoke 6 can be realized. The above-mentioned way of taking electricity can separate the first extension arm 51 from the magnetic yoke 6 after the moving contact is disconnected, and will not be in contact, so that when the test button is pressed, the There will be no electricity, which protects the circuit breaker. No matter how the circuit breaker is wired, after the circuit breaker is disconnected, the circuit board will always have no electricity, which improves the life of the circuit board.

In the embodiment of the present invention, both the first end 41 and the second end 42 of the push rod 4 are tilted upward, and the end of the first end 41 of the push rod is provided with a slot 411 , and the first extension arm of the torsion spring 5 51 is placed in the card slot 411, the inner side of the first end 41 is provided with a protective plate 412 downward, the notch 61 of the yoke 6 is a U-shaped notch 61, and the protective plate 412 corresponds to the inner side of the U-shaped notch 61, The top of the second end 42 is set as an arc surface. By adopting the above solution, the first extension arm 51 can be well prevented from accidentally contacting with the magnetic yoke 6, which further protects the product. In addition, the second end 42 is set as an arc surface, so that the direction of the force is basically the same, and the pushing force is well guaranteed. Rod 4 slips.

In the embodiment of the present invention, there are five groups of clamping blocks on the base 1 , the first group of clamping blocks 21 is disposed in front of the first end 41 of the push rod 4 , and the second group of clamping blocks 22 is disposed on the first end of the push rod 4 . Above the two ends 42 , the third and fourth groups of

blocks

23 and 24 are arranged above the middle of the push rod 4 , and the fifth group of blocks 25 is arranged below the middle of the push rod 4 . The upper side of the magnetic yoke 6 The side is arranged close to the lower part of the push rod 4 ; it also includes a bracket 8 arranged on the base 1 , and a sixth group of clamping blocks 26 are arranged on the bracket 8 , and the sixth group of clamping blocks 26 are located above the first end 41 of the push rod 4 . By adopting the above solution, the purpose is to better limit the position of the push rod 4, which is also for the stable operation of the push rod 4, and no problems such as dislocation movement or jamming occur, and the safety and reliability of the product are further ensured.

Claims

A power-taking mechanism for a test device of a circuit breaker is characterized in that: it includes a clamping block arranged on a base, a chute is formed between the clamping blocks, a push rod is arranged in the chute, and the push rod is placed on the handle of the circuit breaker Between it and the release yoke of the circuit breaker, a pin shaft is arranged on the base, and a torsion spring is sleeved on the pin shaft. The end of the circuit breaker is correspondingly arranged with the movable contact mounting seat of the circuit breaker, and the rotation of the movable contact mounting seat can drive the push rod to move. Located at the gap, after the circuit breaker is opened, the moving contact mounting seat pushes the push rod to move the compression torsion spring to separate the first extension arm of the torsion spring from the yoke. After the circuit breaker is closed, the moving contact mounting seat releases the push rod and pushes the torsion spring. The rod moves under the elastic force of the torsion spring so that the first extension arm of the torsion spring contacts the inner wall at the notch of the yoke.
The power take-off mechanism of a test device for a circuit breaker according to claim 1, wherein the first end and the second end of the push rod are both tilted upward, and the end of the first end of the push rod is provided with a slot, The first extension arm of the torsion spring is placed in the card slot, the inner side of the first end is provided with a protection plate downward, the gap of the magnetic yoke is a U-shaped gap, and the protection plate corresponds to the inner side of the U-shaped gap. The top of the second end is set as an arc surface.
The power take-off mechanism for a test device of a circuit breaker according to claim 1 or 2, characterized in that: there are five groups of clamping blocks on the base, the first group of clamping blocks is arranged in front of the first end of the push rod, the second The second group of clamping blocks are arranged above the second end of the push rod, the third and fourth groups of clamping blocks are arranged above the middle of the push rod, and the fifth group of clamping blocks is arranged below the middle of the push rod. The upper side of the yoke The edge is set just below the putter.
The power take-off mechanism of the test device of the circuit breaker according to claim 3 is characterized in that: it further comprises a bracket arranged on the base, the bracket is provided with a sixth group of clamping blocks, and the sixth group of clamping blocks is located at the first position of the push rod. top of the end.