Electric leakage indicating device with self-locking function and electric leakage circuit breaker

Abstract

The utility model provides an electric leakage indicating device with a self-locking function and an electric leakage circuit breaker, and relates to the technical field of electric leakage circuit breakers, the electric leakage indicating device with the self-locking function comprises an electric leakage indicating body, an elastic body I, a deflector rod and an electric leakage processing module, the electric leakage indicating body comprises a pressing part and a self-locking protruding part, the driving lever comprises a closing limiting structure, a self-locking matching part and a stress part, the electric leakage indicating body and the driving lever which have the self-locking effect are arranged, when electric leakage occurs, the electric leakage indicating body pops up, the driving lever is kept at the position after the electric leakage indicating body pops up, and at the moment, the driving lever limits the handle to be incapable of closing; the electric leakage indicating body needs to be pressed to reset the driving lever to the initial state, the handle is not limited any more, the handle can be switched on at the moment, and safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of leakage circuit breaker especially a leakage indication device with self locking function and leakage circuit breaker. BACKGROUND

[0002] Leakage circuit breaker, mainly is used when equipment has leakage fault and to the fatal dangerous personal electric shock protection, has overload and short circuit protection function, can be used to protect the overload and short circuit of line or motor, under the working condition, when product detects that line has leakage or personal electric shock, leakage indication will pop out, this shows that line has leakage and leads to product tripping, and is not caused by overload or short circuit fault, and the traditional product can still close under the condition that leakage indication pops out, at this moment, there is security hidden danger in rash closing, in view of above-mentioned defects, the present application is proposed. SUMMARY

[0003] The utility model discloses a leakage indication device with self locking function and leakage circuit breaker, when leakage indication pops out, resets leakage indication to close, solve the security hidden danger problem of traditional leakage circuit breaker.

[0004] To solve the above problem, the utility model provides a leakage indication device with self locking function, including leakage indication body, elastomer no. When the self locking protruding part is in the locking area one, the lever limits the leakage indication body, makes it in the state of not popping out, when leakage occurs, the action trigger assembly generates action, the stress part receives trigger force, the self locking cooperation department generates displacement, makes the self locking protruding part and locking area one separate, the leakage indication body pops out, after popping out, the self locking protruding part cooperates with locking area two, makes the lever keep position, at this moment, the limit closing structure limits the handle closing, only when pressing the leakage indication body, makes the self locking protruding part and locking area two separate, makes the lever reset, at this moment, the limit closing structure does not limit the handle closing any longer, and the handle can close, improve the security.

[0005] According to the utility model one embodiment, the lever is connected with elastomer no.

[0006] According to the utility model one embodiment, the support connecting portion is arranged on the lever, and the self-locking portion and the stress portion are arranged on both sides of the support connecting portion, the lever rotates around the support connecting portion when the lever operates, and the lever can operate in a translation mode or the like in addition to the rotation mode.

[0007] According to the utility model one embodiment, the distance between the self-locking portion and the support connecting portion is smaller than the distance between the stress portion and the support connecting portion, thereby forming a labor-saving lever, so that only a small force needs to be applied to the stress portion, and the lever can operate.

[0008] According to the utility model one embodiment, the limit structure is arranged on the electric leakage indicating body, and is used for limiting the maximum displacement of the electric leakage indicating body when the electric leakage indicating body pops out, and the limit structure is preferably a convex structure.

[0009] According to the utility model one embodiment, the elastic body two is a torsion spring, and the elastic body one is a compression spring.

[0010] According to the utility model one embodiment, the operation trigger assembly is a moving iron core in a release device assembly.

[0011] The utility model discloses a leakage circuit breaker, including above-mentioned leakage indicating device with self-locking function, and the transmission connection between the limit closing structure and handle has, when the lever operates, the electric leakage indicating body limits the reset of the lever, and the limit closing structure limits the closing of the handle.

[0012] The utility model discloses a leakage circuit breaker, including above-mentioned leakage indicating device with self-locking function, and the transmission connection between the limit closing structure and handle has, when the lever operates, the electric leakage indicating body limits the reset of the lever, and the limit closing structure limits the closing of the handle. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model is further illustrated below in connection with the drawings and embodiments.

[0014] Figure 1 It is overall structure schematic diagram for leakage circuit breaker;

[0015] Figure 2 It is leakage indicating device structure schematic diagram with self-locking function;

[0016] Figure 3 It is another view structure schematic diagram of leakage indicating device with self-locking function;

[0017] Figure 4 It is internal structure schematic diagram of leakage circuit breaker. DETAILED DESCRIPTION

[0018] The following description is only used to disclose the utility model to enable those skilled in the art to implement the utility model. The examples in the following description are only as examples, and other obvious modifications can be thought of by those skilled in the art. The basic principles of the utility model defined in the following description can be applied to other embodiments, modification schemes, improvement schemes, equivalent schemes and other schemes without departing from the spirit and scope of the utility model.

[0019] A leakage indication device with self-locking function, such as Figure 1 , comprising a leakage indication body 1, an elastic body one 2, a lever 3, an elastic body two 4 and a leakage processing module 5.

[0020] As Figure 2 , Figure 3 , the leakage indication body 1 comprises a pressing part 12, a self-locking protruding part 11 and a limiting structure 13, the leakage indication body 1 is installed at the hole position of the circuit breaker shell, the surface of the pressing part 12 is provided with an identification, and the limiting structure 13 is preferably a protruding structure and is used for limiting the maximum displacement when the leakage indication body 1 is popped out.

[0021] The elastic body one 2 is a compression spring, and the elastic body one 2 provides a pop-out force for the leakage indication body 1, and when the leakage indication body 1 is not popped out, the compression spring is in a compressed state.

[0022] The lever 3 comprises a limit closing structure 31, a support connecting part 33, a self-locking matching part 34 and a stress part 32, the support connecting part 33 is a cylindrical structure and is rotatably installed on the mounting column of the circuit breaker shell, the self-locking matching part 34 and the stress part 32 are respectively arranged on the two sides of the support connecting part 33, the lever 3 rotates around the support connecting part 33 when the lever 3 acts, the self-locking matching part 34 comprises a locking area one 341 and a locking area two 342, the self-locking matching part 34 is in the shape of an inverted “L” as a whole, the locking area one 341 is a space for accommodating the self-locking protruding part 11, and the locking area two 342 has a surface for abutting against the self-locking protruding part 11.

[0023] The limit closing structure 31 adopts a rod-shaped structure in the embodiment, cooperates with the handle lock catch mechanism 7 of the circuit breaker, the lock catch mechanism 7 can adopt the lock catch structure in the prior art, when the leakage indication body 1 limits the reset of the lever 3, the lever is always in a state after rotation, the limit closing structure 31 always pushes away the lock catch of the lower pole circuit breaker mechanism, the jump catch is separated from the lock catch, and the handle 6 cannot be closed due to the obstruction of the limit closing structure 31. Only when the leakage indication body 1 is pressed and then the lever 3 is restored to the initial state, the handle can be closed.

[0024] In other embodiments, the limit closing structure 31 can adopt any mode capable of blocking the handle from being closed, such as directly abutting against the handle to make the handle be pressed and unable to be closed, or the like.

[0025] The lever 3 is connected with the elastic body 4, the elastic body 4 is a torsion spring, one end of the torsion spring abuts at the position of the stress part 32, the elastic body 4 is used to realize the automatic reset effect of the lever 3 and can keep the position of the lever 3 stable, when the self-locking protruding part 11 is separated from the locking area 342, the lever 3 is automatically reset under the action of the elastic body 4.

[0026] Preferably, the distance between the self-locking fitting part 34 and the support connecting part 33 is smaller than the distance between the stress part 32 and the support connecting part 33, forming a force-saving lever, so that only a small force needs to be applied at the stress part 32 to make the lever 3 act, realizing the rapid action in the case of leakage.

[0027] The leakage processing module 5 includes an electronic component board, a trip unit and other structures, the structure here is consistent with the traditional leakage circuit breaker, the action trigger assembly 51 is a moving iron core in the trip unit, when the moving iron core extends, the stress part 32 is pressed.

[0028] In other embodiments, the action trigger assembly 51 can adopt any action mechanism electrically connected with the electronic component board in the leakage processing module 5, such as a push rod, a motor and the like.

[0029] When the self-locking protruding part 11 is at the locking area 341, the lever 3 limits the leakage indicating body 1, so that it is in the un-ejected state, when leakage occurs, the leakage processing module 5 promotes the action of the action trigger assembly 51, the moving iron core pushes the stress part 32, the self-locking fitting part 34 is displaced, the self-locking protruding part 11 is separated from the locking area 341, at this time, the leakage indicating body 1 can be ejected under the action of the elastic member 2, after being ejected, the self-locking protruding part 11 abuts and cooperates with the locking area 342, so that the lever 3 keeps the position, at this time, the lever 3 limits the handle 6 from closing.

[0030] When closing, the leakage indicating body 1 needs to be pressed, so that the self-locking protruding part 11 is separated from the locking area 342, and the self-locking protruding part 11 enters the locking area 341, at this time, the lever 3 is reset to the initial state under the action of the elastic body 4, and no longer limits the handle, at this time, the handle can be closed, improving the safety.

[0031] A leakage circuit breaker, such as Figure 1 , comprising the leakage indicating device with self-locking function described above, the transmission cooperation between the limit closing structure and the lock catch structure of the handle, when the lever acts and the leakage indicating body limits the reset of the lever, the limit closing structure limits the closing of the handle.

[0032] It will be understood by those skilled in the art that the above description and the embodiments of the present application shown in the drawings are only examples and do not limit the present application. The purpose of the present application has been completely and effectively achieved. The function and structural principle of the present application have been demonstrated and explained in the embodiments, and the embodiments of the present application can have any deformation and modification without departing from the principle.

Claims

1. A leakage current indicator with self-locking function, characterized in that: The system includes a leakage current indicator (1), an elastic body (2), a lever (3), and a leakage current handling module (5). The elastic body (2) provides a spring force to the leakage current indicator (1). The leakage current indicator (1) includes a pressing part (12) and a self-locking protrusion (11). The lever (3) includes a limiting closing structure (31), a self-locking engagement part (34), and a force-bearing part (32). The self-locking engagement part (34) includes a locking area one (341) and a locking area two (342). The leakage current handling module (5) includes an action triggering component (51). The self-locking... When the protrusion (11) is in the first locking area (341), the lever (3) restricts the leakage indicator (1) from popping out. When leakage occurs, the action trigger component (51) is activated, the force receiving part (32) is triggered, and the self-locking engagement part (34) is displaced, causing the self-locking protrusion (11) to disengage from the first locking area (341). The leakage indicator (1) pops out, and after popping out, the self-locking protrusion (11) engages with the second locking area (342) to keep the lever (3) in position. At this time, the limiting closing structure (31) restricts the handle from closing.

2. The leakage current indicator with self-locking function according to claim 1, characterized in that: The lever (3) is connected to the second elastic body (4), and the second elastic body (4) is used to achieve the reset effect of the lever (3).

3. The leakage current indicator with self-locking function according to claim 2, characterized in that: The lever (3) is provided with a support connection part (33), and the self-locking engagement part (34) and the force-bearing part (32) are respectively provided on both sides of the support connection part (33). When the lever (3) is in motion, it rotates around the support connection part (33).

4. The leakage current indicator with self-locking function according to claim 3, characterized in that: The distance between the self-locking mating part (34) and the supporting connection part (33) is less than the distance between the force-bearing part (32) and the supporting connection part (33).

5. The leakage current indicator with self-locking function according to any one of claims 1-4, characterized in that: The leakage current indicator (1) is provided with a limit structure (13).

6. The leakage current indicator with self-locking function according to any one of claims 2-4, characterized in that: The second elastic body (4) is a torsion spring, and the first elastic body (2) is a compression spring.

7. The leakage current indicator with self-locking function according to claim 1, characterized in that: The action triggering component (51) is a moving iron core.

8. A residual current circuit breaker, characterized in that: The leakage current indicator device with self-locking function as described in any one of claims 1-7.

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