CN218730705U - Mechanical operating assembly for bistable relay and bistable relay assembly - Google Patents

Abstract

The application provides a mechanical operating assembly for a bistable relay and a bistable relay assembly. The mechanical operating assembly comprises: a bracket mounted to the bistable relay; an actuator movably mounted to the bracket and connected to the paddle of the bi-stable relay, the actuator configured to move with the paddle of the bi-stable relay to move from a first position to a second position when the bi-stable relay is actuated to switch from a first state to a second state; the reset mechanism is mounted on the bracket and comprises a reset piece and an elastic transmission piece.

Description

Mechanical operating assembly for bistable relay and bistable relay assembly

Technical Field

The utility model relates to a mechanical operation subassembly and bistable relay subassembly for bistable relay.

Background

Generally, after a reset button of a bistable relay is pressed and a fault is cleared, the reset button needs to be returned to an initial position. However, when the reset button cannot return to the initial position for some reason, the actuator cannot move, and the bistable relay cannot be tripped normally. That is, if a fault signal is sent to the bistable relay at this time, the bistable relay cannot be tripped, which has a great safety hazard.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the above technical problem, the present application provides a mechanically operating assembly for a bistable relay, comprising: a bracket mounted to the bistable relay; an actuator movably mounted to the bracket and connected to the paddle of the bi-stable relay, the actuator configured to move with the paddle of the bi-stable relay to move from a first position to a second position when the bi-stable relay is actuated to switch from a first state to a second state; the reset mechanism is arranged on the bracket and comprises a reset piece and an elastic transmission piece, wherein the reset piece is configured to be capable of moving between an initial position and a reset position under the action of external force, the reset piece is not in contact with the elastic transmission piece in the initial position, when the reset piece moves from the initial position to the reset position, the reset piece is in contact with the elastic transmission piece and pushes the elastic transmission piece to deform towards the actuating piece, and then the deformed elastic transmission piece is abutted against the actuating piece and pushes the actuating piece to move from the second position to the first position, so that the shifting piece of the bistable relay is driven to move, and the bistable relay is switched from the second state to the first state.

Advantageously, the reset member comprises a pressing portion which abuts the elastic transmission member and deforms it towards the actuating member when the reset member moves from the initial position to the reset position.

Advantageously, the elastic transmission piece comprises a body, and a fixing part and a matching part which are positioned on two sides of the body, wherein the fixing part is used for fixing the bracket, and the matching part is used for abutting against the pressing part of the reset piece.

Advantageously, the mating portion has an arcuate form.

Advantageously, the fixing portion has a fixing plate extending from the body and a bent portion extending from the fixing plate such that a receiving cavity is formed between the bent portion and the fixing plate, the bracket includes a hook portion and a stopper portion spaced apart from a surface of the bracket such that a groove is formed between the hook portion and the stopper portion and the surface of the bracket, the fixing plate of the fixing portion is configured to be inserted into the groove and such that the hook portion is received in the receiving cavity, and the bent portion abuts against the stopper portion, thereby fixing the elastic transmission member to the bracket.

Advantageously, the shape of the pressing portion of the reset member is designed to allow the engaging portion of the elastic transmission member to return along the contour of the pressing portion after pushing the elastic transmission member to move the actuating member to the first position.

Advantageously, the reset mechanism further comprises a reset spring disposed between the reset member and the cradle and configured to restore the reset member from the reset position to the initial position after the reset member is moved from the initial position to the reset position and after the elastic transmission member is restored to its original shape.

The utility model also provides a bistable relay subassembly, it includes bistable relay and as above mechanical operation subassembly.

Drawings

The advantages and objects of the present invention will be better understood from the following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the relationship of the various components. In the drawings:

fig. 1 shows a perspective view of a bistable relay assembly according to the invention.

Fig. 2 shows a perspective view of the elastic transmission member of the return mechanism of fig. 1.

Fig. 3 shows a schematic representation of the initial position of the reset element of the reset mechanism.

Fig. 4 shows a schematic representation during the movement of the resetting element of the resetting mechanism from the initial position into the resetting position.

Fig. 5 shows a schematic representation of the moment in which the resetting element of the resetting mechanism is moved into the resetting position.

Fig. 6 shows a schematic view of the elastic transmission member returning to its shape.

Detailed Description

Various embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Here, it is to be noted that, in the drawings, the same reference numerals are given to constituent parts having substantially the same or similar structures and functions, and repeated description thereof will be omitted. The term "comprising a, B, C, etc. in sequence" merely indicates the order of the included components a, B, C, etc. and does not exclude the possibility of including other components between a and B and/or between B and C, if not otherwise specified. The description of "first" and its variants is merely for the purpose of distinguishing between the parts and does not limit the scope of the invention, which can be written as "second" and so on without departing from the scope of the invention.

The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of the respective portions and the mutual relationships thereof.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to fig. 1 to 6.

As shown in fig. 1, a mechanical operating assembly for a bistable relay is mounted on the bistable relay, and the bistable relay assembly includes an external frame (not shown) which houses the bistable relay (not shown) and the mechanical operating assembly 1. The mechanically operated assembly 1 comprises a bracket 11 mounted to the bistable relay, an actuator 12 and a reset mechanism 13.

An actuator 12 is mounted to the bracket 11 and is connected to a paddle (not shown) of the bistable relay. When the bistable relay is electrically driven to switch from a first state (working state) to a second state (tripping state), the actuating piece can move in a translation mode along with the shifting piece of the bistable relay so as to move from a first position to a second position. The interrelationship of the actuator and the bistable relay is well known to those skilled in the art and is not a focus of the present application and will not be described in detail. In addition, in the present application, the actuator is described as an example of a translational movement, but it should be understood that the actuator may also take other forms of movement, for example a rotational form, without this affecting the purpose of the invention of the present application.

The reset mechanism 13 is used to reset the bistable relay from the second state to the first state. The return mechanism 13 includes a return member 131 and an elastic transmission member 132 (e.g., a reed or the like). The reset member 131 is preferably in the form of a button that can be moved from an initial position to a reset position via a manual or powered downward press.

The reset member 131 includes a pressing portion 1311, the elastic transmission member 132 includes a body 1321, and a fixing portion 1322 and a matching portion 1323 located on two sides of the body, when the reset member 131 moves from the initial position to the reset position, the pressing portion 1311 abuts against the matching portion 1323 of the elastic transmission member, and deforms the body of the elastic transmission member toward the actuator 12, and further contacts and pushes the actuator 12 to move from the second position to the first position, and the bistable relay is switched from the second state to the first state by the driving of the toggle piece. The fitting portion 1323 has an arc form which facilitates the elastic transmission member to return to its original shape after the restoring member 131 is moved to the restoring position.

The fixing portion 1322 serves to fix the elastic transmission member 132 to the bracket 11. As shown in fig. 2, the fixing portion 1322 has a fixing plate 1324 extending from the body and a bent portion 1325 extending from the fixing plate such that a receiving cavity 1326 is formed between the bent portion 1325 and the fixing plate 1324. The holder 11 includes a hook 111 and a stopper 112 spaced apart from the surface of the holder such that a groove is formed between the hook and the surface of the holder, a fixing plate 1324 of the fixing portion 1322 is configured to be inserted into the groove such that the hook 111 is received in the receiving chamber 1326, and a bent portion 1325 abuts against the stopper 112 such that the elastic transmission member is fixed to the holder 11, the stopper 112 being capable of preventing the elastic transmission member from being detached from the holder when deformed. It will be understood by those skilled in the art that the specific form of the blocking portion may be freely selected as long as it can block the elastic transmission member 132.

The shape of the pressing portion 1311 of the reset member 131 is designed to allow the engaging portion 1323 of the elastic transmission member 132 to restore along the contour of the pressing portion 1311 after pressing the elastic transmission member 132 to move the actuating member to the first position (i.e., the reset member moves to the reset position and abuts against the stopping portion).

The reset mechanism further includes a reset spring (not shown) disposed between the reset member 131 and the cradle 11, and configured to return the reset member from the reset position to the initial position after the reset member is moved from the initial position to the reset position and after the elastic transmission member is restored to its original shape.

Fig. 3 to 6 show a process in which the restoring member 131 moves from the initial position to the restoring position. As shown in fig. 3, the pressing portion 1311 of the reset member 131 abuts against the engaging portion 1323 of the elastic transmission member 132, and presses the elastic transmission member 132 downward such that the body 1321 of the elastic transmission member 132 is deformed toward the actuator 12. As shown in FIG. 4, the deformed resilient transfer member 132 contacts and urges the actuator 12 from the second position toward the first position. Finally, the reset member 131 moves to the reset position, as shown in FIG. 5, where the deformation of the elastic transmission member 132 is maximized and the actuator 12 has been moved to the first position.

Due to the elasticity of the elastic transmission member 132 itself, in the state of fig. 5, by means of the arc form of the engagement portion of the elastic transmission member 132, the elastic transmission member 132 starts to release energy, resulting in the elastic transmission member 132 restoring along the contour of the pressing portion 1311, as shown in fig. 6.

Next, if a return spring (not shown) provided between the returning member 131 and the cradle 11 is released, the returning member returns to the initial position from the returning position, as shown in fig. 3.

The above describes a mechanical operating assembly of a bistable relay according to the present application, by means of which the elastic transmission member can ensure that the actuating member can still move from the first position to the second position (i.e. ensure that the bistable relay can be tripped normally) when the reset member cannot be lifted for some reason after the reset member has moved to the reset position and has cleared the fault. Furthermore, depending on the spring parameters of the spring transfer element, a smaller or larger driving force range may be provided, in cooperation with different types of bistable relays.

Moreover, the technical features disclosed above are not limited to the combinations with other features disclosed, and other combinations between the technical features can be performed by those skilled in the art according to the purpose of the invention to achieve the aim of the invention.

Claims (8)

1. A mechanically operated assembly for a bistable relay, said mechanically operated assembly comprising:

a bracket mounted to the bistable relay;

an actuator movably mounted to the bracket and coupled to the paddle of the bi-stable relay, the actuator configured to move with the paddle of the bi-stable relay to move from a first position to a second position when the bi-stable relay is actuated to switch from the first state to the second state;

the reset mechanism is arranged on the bracket and comprises a reset piece and an elastic transmission piece, wherein the reset piece is configured to be capable of moving between an initial position and a reset position under the action of external force, the reset piece is not in contact with the elastic transmission piece in the initial position, when the reset piece moves from the initial position to the reset position, the reset piece is in contact with the elastic transmission piece and pushes the elastic transmission piece to deform towards the actuating piece, and then the deformed elastic transmission piece is abutted against the actuating piece and pushes the actuating piece to move from the second position to the first position, so that the shifting piece of the bistable relay is driven to move, and the bistable relay is switched from the second state to the first state.

2. The mechanical-operating assembly of claim 1, wherein the reset member includes a pressing portion that abuts the resilient transmission member and deforms it toward the actuating member when the reset member moves from the initial position to the reset position.

3. The mechanical operating assembly of claim 1, wherein the elastic transmission member includes a body, and a fixing portion and an engaging portion on both sides of the body, the fixing portion being for fixing to the bracket, the engaging portion being for abutting against the pressing portion of the returning member.

4. A mechanically operated assembly as claimed in claim 3 wherein said engagement portion has an arcuate form.

5. The mechanical-operating assembly of claim 3, wherein the fixing portion has a fixing plate extending from the body and a bent portion extending from the fixing plate such that a receiving cavity is formed between the bent portion and the fixing plate, the bracket includes a hook portion and a stopper portion spaced apart from a surface of the bracket such that a groove is formed between the hook portion and the stopper portion and the surface of the bracket, the fixing plate of the fixing portion is configured to be inserted into the groove and such that the hook portion is received in the receiving cavity, and the bent portion abuts the stopper portion, thereby fixing the elastic transmission member to the bracket.

6. The mechanical operating assembly of claim 5, wherein the shape of the pressing portion of the returning member is designed to allow the engaging portion of the elastic transmission member to return along the contour of the pressing portion after pushing the elastic transmission member to move the actuating member to the first position.

7. The mechanical-operating assembly of claim 6, wherein the return mechanism further comprises a return spring disposed between the return member and the cradle and configured to return the return member from the return position to the initial position after the return member moves from the initial position to the return position and after the resilient transmission member returns to its original shape.

8. A bistable relay assembly comprising a bistable relay and the mechanically operated assembly of any one of claims 1-7.

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