CN116525370A - Leakage circuit breaker with leakage indication function - Google Patents

Abstract

The invention relates to an electric leakage breaker, in particular to an electric leakage breaker with an electric leakage indication function. The technical scheme adopted by the invention is as follows: an electric leakage circuit breaker of area electric leakage instruction function, its characterized in that: the invention overcomes the defects of the prior art by adopting the scheme, and provides a novel leakage circuit breaker with a simple structure, a stable working, a large circuit breaker volume and a clear display mode and a leakage indication.

Description

Leakage circuit breaker with leakage indication function

Technical Field

The invention relates to an electric leakage breaker, in particular to an electric leakage breaker with an electric leakage indication function.

Background

The leakage circuit breaker is an electrical safety device which can rapidly cut off a power supply when electric leakage occurs so as to prevent electric shock accidents, and an indicating device for reminding people of the occurrence of electric leakage is usually arranged in the leakage circuit breaker.

The circuit breaker with leakage indication in the market is also many, but the leakage unit is independently provided with a shell and is in linkage connection with the circuit breaker through a connecting rod, and the leakage unit is independently arranged with the circuit breaker, so that the structure is not influenced by the internal structure of the circuit breaker, and the circuit breaker has sufficient space for the leakage tripping, indication and other functional settings, but the structure has a large-size leakage tripping device for the whole circuit breaker, and the action is less sensitive and rapid.

The technical scheme of the leakage circuit breaker with the leakage indication is as follows: the electric leakage tripping device comprises a shell, an operating mechanism and an electric leakage tripping device, wherein the electric leakage tripping device further comprises an electric leakage indicating rod and an indicating elastic piece, the shell is provided with a small hole which allows the electric leakage indicating rod to extend out of the shell, the electric leakage indicating rod can move up and down in the shell and is provided with an indication extending out of the shell

The electric leakage tripping device comprises a shell, a tripping platform is arranged on one side of the electric leakage tripping device, the tripping platform extends to one side of an electric leakage indicating rod, and a limiting platform is arranged on the electric leakage indicating rod. The patent judges whether the leakage indication is carried out by judging whether the leakage indication rod extends out of the shell or not, the applicant considers that the mode has a problem, 1, a user can consider the indication rod as a button and can be pressed, and the product safety is affected; 2. the indication rod is easily influenced by other components, and the work is influenced; 3. the indicating rod needs to extend out of the shell when working, and has requirements for product installation; 4. the indication is not clear and is easy to be mistaken.

Disclosure of Invention

The invention overcomes the defects of the prior art, and provides the novel leakage circuit breaker with the leakage indication, which has the advantages of simple structure, stable operation, large size, small circuit breaker volume and clear display mode.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: an electric leakage circuit breaker of area electric leakage instruction function, its characterized in that: comprises a shell, the shell is provided with three areas through a baffle, the first area is provided with an L-pole moving contact mechanism, a handle operating mechanism, a release and an arc extinguish chamber, the second area is provided with an N-pole moving contact mechanism, the third area is provided with a leakage release and a leakage indicating mechanism, the three areas are respectively arranged in parallel, the second area is positioned in the middle, the leakage indicating mechanism comprises a rotating piece, a torsion spring and an indicating plate which are rotatably arranged on the shell, the rotating piece comprises a first arm matched with a telescopic rod of the leakage release, a second arm matched with the indicating plate and a third arm for realizing leakage release, the indicating plate and the torsion spring are rotatably arranged on the baffle of the shell, the first abutting arm of the torsion spring abuts against the first arm, the second abutting arm of the torsion spring abuts against the indicating plate, the indicating board comprises a connecting sleeve, an indicating block and a limiting boss which are integrally or fixedly connected, wherein the connecting sleeve is used for installing the indicating board on a partition board of a shell and realizing rotation setting, the indicating block is used for leakage indication and is provided with a collision edge, the upper side surface of the indicating block is an indicating surface, an indicating opening is arranged on the corresponding indicating surface of the shell, a deflector rod is arranged on a movable contact seat of the N-pole movable contact mechanism and can push the collision edge to realize rotation of the indicating block, the limiting boss is matched with a second arm to limit the rotation of the indicating block under the condition that a circuit breaker is not in leakage tripping or normally closing, a connecting rod is arranged on a lock catch of the L-pole movable contact mechanism, the connecting rod penetrates through the partition board of the shell and is matched with a third arm, after the circuit breaker is closed, the telescopic rod of the leakage release pushes a first arm to realize rotation of a rotating piece, and the third arm pushes the connecting rod to act, the connecting rod drives the hasp action and realizes circuit breaker electric leakage tripping, and the driving lever is kept away from the conflict limit simultaneously, and the instruction board rotates under the effect of torsional spring and realizes the electric leakage instruction.

Through adopting above-mentioned scheme, carry out the subregion in a casing and be provided with various functional module, make whole product structure very compact like this, each functional module can not influence each other, it is also very convenient to install, the electric leakage indication does not show electric leakage when manual brake release and non-electric leakage brake release of circuit breaker has been realized to above-mentioned structure in addition, only electric leakage indication just shows the function of electric leakage when electric leakage brake release, be provided with a plurality of arms on the rotation piece in addition, realize different effects, the structure of the electric leakage display function of product has been simplified greatly like this, spare part has been reduced, the installation procedure has been simplified, the same reason indicator board is a part and realizes a plurality of functions.

The invention is further provided with the following steps: the rotating member comprises a first rotating member and a second rotating member, the first rotating member and the second rotating member are arranged on a partition plate of the shell through the same shaft in a rotating mode, the first arm and the third arm are arranged on the first rotating member, the second arm is arranged on the second rotating member, the second rotating member is provided with a contact supporting rod, the contact supporting rod is in contact supporting fit with the first arm, the first arm rotates to push the contact supporting rod to achieve rotation of the second rotating member, the first contact supporting arm of the torsion spring is in contact supporting with the contact supporting rod, and the torsion spring and the indication plate are sleeved on the same shaft.

Through adopting above-mentioned scheme, because the rotating member needs to mutually support with multiple parts of connecting rod, electric leakage release, instruction board to various cooperation all need be realized in the action process, in addition after non-electric leakage brake release and electric leakage brake release's combined floodgate, its mode of action is totally different, the part of cooperation is also different, so in order to prevent that the rotating member from appearing blocking or influencing under the condition of other parts normal work, we set up the rotating member into two, the cooperation has an action allowance between two like this parts, can not appear blocking the phenomenon in the action process, guarantee the stability of product work, reasonable in design certainly, spare part standard also can set up integratively.

The invention is further provided with the following steps: the top of third arm extends to the second region and sets up, the connecting rod extends to the second region, and third arm and connecting rod conflict cooperation position are in the second region, be provided with spacing bump on the baffle of casing, the limiting bump can realize the spacing to the instruction board under the electric leakage instruction state of instruction board.

Through adopting above-mentioned scheme, we can prevent that a part overlength or extension overlength from having long problem that can warp, and the setting of spacing bump guarantees the accuracy that the pilot panel shows in addition, can not appear the mistake and show.

The invention is further provided with the following steps: the circuit breaker is characterized in that a torsion spring first abutting arm mounting seat is arranged on the abutting rod, the torsion spring first abutting arm abuts against the mounting seat, a limiting step is arranged on the second arm, and a limiting boss on the indicating plate is matched with the limiting step of the second arm to limit the indicating block to rotate under the condition that the circuit breaker is not in leakage tripping or normal closing.

Through adopting above-mentioned scheme, the conflict that makes the torsional spring is firm, and the setting of spacing step in addition can be fine guarantee that the circuit breaker can not rotate at normal condition or non-electric leakage tripping operation state down the pilot board.

The invention is still further provided with: the indicating block and the limiting boss are both arranged on the connecting sleeve, the indicating block is integrally fan-shaped, the upper top surface of the indicating block is transversely provided with an indicating surface, one side of the indicating block close to the second arm is provided with a collision edge, the outer side of the abutting edge is abutted by the torsion spring second abutting arm, and the inner side of the abutting edge can be pushed by the deflector rod to realize the rotation of the indicating block, so that the non-leakage state display of the circuit breaker is realized.

Through the scheme, a plurality of functions are realized by one component, the structure is greatly simplified, and the working stability of a product is realized.

The final setting of the invention is as follows: a rotation allowance is reserved between the first arm of the first rotating piece and the abutting rod of the second rotating piece.

The rotation allowance refers to that two parts are not always in interference fit, and a space for independent rotation is formed between the two parts in a certain movable range, so that fine adjustment of actions is realized, and stability of product performance is improved.

The invention is further described below with reference to the accompanying drawings.

Drawings

FIG. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a block diagram of an embodiment of the present invention reflecting a first region;

FIG. 3 is a block diagram of an embodiment of the present invention reflecting a second region;

FIG. 4 is a block diagram of an embodiment of the present invention reflecting a third region;

FIG. 5 is a diagram showing a structure of a leakage indicating mechanism after closing according to an embodiment of the present invention;

FIG. 6 is a block diagram of the electrical leakage release of an embodiment of the present invention;

FIG. 7 is a schematic diagram of a structure after non-leakage tripping or manual tripping according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of the closing process according to the embodiment of the invention;

FIG. 9 is a schematic diagram of an embodiment of the present invention reflecting the configuration of the torsion spring and the lever;

FIG. 10 is a perspective view of an indicator panel according to an embodiment of the present invention;

FIG. 11 is a perspective view of a rotating member according to an embodiment of the present invention;

FIG. 12 is a schematic diagram showing the positional relationship between a lever and an indicator board after electric leakage and brake separation according to an embodiment of the present invention;

FIG. 13 is a schematic diagram showing the positional relationship between a lever and an indicator board after closing a switch in accordance with an embodiment of the present invention;

FIG. 14 is a schematic diagram showing a positional relationship between a lever and an indicator board after non-leakage tripping or manual tripping in accordance with an embodiment of the present invention;

fig. 15 is a schematic diagram illustrating a positional relationship between a lever and an indicator board in a closing process after an electric leakage trip according to an embodiment of the present invention.

Description of the embodiments

In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

As shown in fig. 1 to 15, an earth leakage breaker with an earth leakage indication function comprises a casing 1, wherein the casing 1 is provided with three areas through a partition board, the casing 1 is a generalized concept, the earth leakage breaker comprises a casing and a partition board used for isolating space, a first area a is provided with an L-pole moving contact mechanism, a handle operation mechanism, a release and an arc extinguishing chamber, technical characteristics such as the L-pole moving contact mechanism, the handle operation mechanism, the release and the arc extinguishing chamber are common in the existing breaker, the technical characteristics are not described in detail here, a second area B is provided with an N-pole moving contact mechanism, a third area C is provided with an earth leakage release 2 and an earth leakage indication mechanism 3, the three areas are respectively arranged in parallel, the second area B is positioned in the middle, the earth leakage indication mechanism 3 comprises a rotating member 31, a torsion spring 32 and an indication plate 33 which are rotatably arranged on the casing 1, the rotating member 31 comprises a first arm 311 matched with a telescopic rod of the leakage tripping device 2, a second arm 312 matched with an indicating plate 33 and a third arm 313 for realizing leakage tripping trip, the indicating plate 33 and the torsion spring 32 are both rotatably arranged on a partition board of the shell 1, a first abutting arm 321 of the torsion spring 32 abuts against the first arm 311, a second abutting arm 322 of the torsion spring 32 abuts against the indicating plate 33, the indicating plate 33 comprises a connecting sleeve 331, an indicating block 332 and a limiting boss 333, which are integrally or fixedly connected, wherein the connecting sleeve 331 is used for installing the indicating plate 33 on the partition board of the shell 1 and realizing rotation setting, the indicating block 332 is used for indicating leakage and is provided with an abutting edge 3321 thereon, the upper side surface of the indicating block 332 is an indicating surface, the corresponding indicating surface on the shell 1 is provided with an indicating port, the movable contact seat of the N-pole movable contact mechanism is provided with a deflector rod 4, the deflector rod 4 can push a collision edge 3321 to realize the rotation of the indication block 332, the limit boss 333 cooperates with the second arm 312 to limit the rotation of the indication block 332 under the condition that the circuit breaker is not in leakage tripping or normal closing, the lock catch of the L-pole movable contact mechanism is provided with a connecting rod 5, the connecting rod 5 passes through the partition board of the shell 1 to cooperate with the third arm 313, after the circuit breaker is closed, the electric leakage tripping device acts on the telescopic rod to push the first arm 311 to realize the rotation of the rotating member 31, at the moment, the third arm 313 pushes the connecting rod 5 to act, the connecting rod 5 drives the lock catch of the L-pole movable contact mechanism to act to realize the leakage tripping of the circuit breaker, meanwhile, the deflector rod 4 is far away from the collision edge 3321, the indication plate 33 rotates under the action of the torsion spring 32 to realize the leakage indication, the lock catch above is common to the existing circuit breaker L-pole movable contact device, and similar patent application is not described in detail in the patent before the applicant; through adopting above-mentioned scheme, carry out the subregion in a casing 1 and be provided with various functional module, make whole product structure very compact like this, each functional module can not influence each other, it is also very convenient to install, the electric leakage indication does not show electric leakage when manual brake release and non-electric leakage brake release of circuit breaker has been realized to above-mentioned structure in addition, only electric leakage indication just shows the function of electric leakage when electric leakage brake release, be provided with a plurality of arms on the rotating member 31 in addition, realize different effects, the structure of the electric leakage display function of product has been simplified greatly like this, spare part has been reduced, the installation procedure has been simplified, the same reason indicator plate 33 is a part and realizes a plurality of functions.

The specific working principle is that when the circuit breaker is manually opened or opened under the condition of no electric leakage, the electric leakage indication display is normal, at the moment, the deflector rod 4 is far away from the abutting edge 3321, the connecting rod 5 is far away from the third arm 313, the second arm 312 is in limit fit with the limit boss 333, the rotating piece 31 is not moved in the closing process, the deflector rod 4 rotates to be close to or abuts against the abutting edge 3321, the connecting rod 5 is close to or abuts against one side of the third arm 313, two conditions exist after closing, the first condition and the electric leakage release condition exist, the telescopic rod of the electric leakage release acts to push the first arm 311 to realize the rotation of the rotating piece 31, at the moment, the third arm 313 pushes the connecting rod 5 to act, the connecting rod 5 drives the L-pole moving contact mechanism to lock to act, so that the circuit breaker electric leakage release is realized, at the same time, the deflector rod 4 is far away from the abutting edge 3321, and the indicating plate 33 rotates under the action of the torsion spring 32; in the second non-leakage tripping condition, the breaker is tripped, the moving contact seat of the N-pole moving contact mechanism drives the deflector rod 4 to move away from the abutting edge 3321, the L-pole moving contact mechanism drives the connecting rod 5 to move away from the third arm 313, the second arm 312 is in limit fit with the limit boss 333, the rotating piece 31 is not moved, and the indication board 33 does not display leakage.

In this embodiment of the present invention, the rotating member 31 includes a first rotating member 3A and a second rotating member 3B, the first rotating member 3A and the second rotating member 3B are rotatably disposed on a partition board of the housing 1 through a same shaft, the first arm 311 and the third arm 313 are disposed on the first rotating member 3A, the second arm 312 is disposed on the second rotating member 3B, an abutting rod 314 is disposed on the second rotating member 3B, the abutting rod 314 is in abutting fit with the first arm 311, the first arm 311 rotates to push the abutting rod 314 to rotate the second rotating member 3B, the first abutting arm 321 of the torsion spring 32 abuts against the abutting rod 314, and the torsion spring 32 and the indication board 33 are sleeved on the same shaft. By adopting the above scheme, because the rotating member 31 needs to be mutually matched with various components of the connecting rod 4, the leakage release 2 and the indicating plate 33, and various matching needs to be realized in the action process, in addition, the action modes of the rotating member 31 are completely different from the action modes of the rotating member after non-leakage release and after leakage release, and the matched components are also different, so that the rotating member 31 is set to be two under the condition of preventing the rotating member 31 from being blocked or affecting the normal work of other components, and thus, the two components are matched with an action allowance, the blocking phenomenon can not occur in the action process, the stability of the product work is ensured, the design is reasonable, and the standards of the components can be integrally set. In addition, in the embodiment of the present invention, a rotation allowance is left between the first arm 311 of the first rotating member 3A and the abutting rod 314 of the second rotating member 3B, where the rotation allowance refers to that the two components are not always in abutting fit, and that there is an independent rotation space between the two components within a certain movement range, which refers to fine adjustment of motion, and increase of stability of product performance.

In the embodiment of the present invention, the top end of the third arm 313 extends to the second area B, the connecting rod 5 extends to the second area B, the position where the third arm 313 is in interference fit with the connecting rod 5 is located in the second area B, the partition board of the housing 1 is provided with the limit bump 11, and the limit bump 11 can limit the indication board 33 in the leakage indication state of the indication board 33. By adopting the scheme, the problem that one part is overlong or the extension part is overlong and can deform can be prevented, in addition, the setting of the limiting convex points 11 ensures the display accuracy of the indicating plate 33, and error display can not occur.

In the embodiment of the present invention, the first abutting arm 321 of the torsion spring 32 is disposed on the abutting rod 314, the first abutting arm 321 of the torsion spring 32 abuts against the mounting seat, the second arm 312 is provided with a limiting step, and the limiting boss 333 on the indicating plate 33 cooperates with the limiting step of the second arm 312 to limit the rotation of the indicating block 332 under the condition that the circuit breaker is not tripped due to leakage or normally closed. By adopting the scheme, the torsion spring 32 is firmly abutted, and in addition, the arrangement of the limiting step can well ensure that the indicator plate 33 cannot rotate in a normal state or a non-leakage tripping state of the circuit breaker.

In the embodiment of the invention, the indication block 332 and the limiting boss 333 are both disposed on the connecting sleeve 331, the indication block 332 is integrally fan-shaped, the top surface of the indication block 332 is transversely provided with the indication surface 3322, one side of the indication block 332 close to the second arm 312 is provided with the abutting edge 3321, the outer side of the abutting edge 3321 is abutted against the second abutting arm 322 of the torsion spring 32, and the inner side of the abutting edge 3321 can be pushed by the deflector rod 4 to realize rotation of the indication block 332, so as to realize non-leakage state display of the circuit breaker.

The above embodiments are only preferred embodiments of the present invention, and common variations and substitutions by those skilled in the art within the scope of the technical solution of the present invention are included in the scope of the present invention.

Claims (8)

1. An electric leakage circuit breaker of area electric leakage instruction function, its characterized in that: comprises a shell, the shell is provided with three areas through a baffle, the first area is provided with an L-pole moving contact mechanism, a handle operating mechanism, a release and an arc extinguish chamber, the second area is provided with an N-pole moving contact mechanism, the third area is provided with a leakage release and a leakage indicating mechanism, the three areas are respectively arranged in parallel, the second area is positioned in the middle, the leakage indicating mechanism comprises a rotating piece, a torsion spring and an indicating plate which are rotatably arranged on the shell, the rotating piece comprises a first arm matched with a telescopic rod of the leakage release, a second arm matched with the indicating plate and a third arm for realizing leakage release, the indicating plate and the torsion spring are rotatably arranged on the baffle of the shell, the first abutting arm of the torsion spring abuts against the first arm, the second abutting arm of the torsion spring abuts against the indicating plate, the indicating board comprises a connecting sleeve, an indicating block and a limiting boss which are integrally or fixedly connected, wherein the connecting sleeve is used for installing the indicating board on a partition board of a shell and realizing rotation setting, the indicating block is used for leakage indication and is provided with a collision edge, the upper side surface of the indicating block is an indicating surface, an indicating opening is arranged on the corresponding indicating surface of the shell, a deflector rod is arranged on a movable contact seat of the N-pole movable contact mechanism and can push the collision edge to realize rotation of the indicating block, the limiting boss is matched with a second arm to limit the rotation of the indicating block under the condition that a circuit breaker is not in leakage tripping or normally closing, a connecting rod is arranged on a lock catch of the L-pole movable contact mechanism, the connecting rod penetrates through the partition board of the shell and is matched with a third arm, after the circuit breaker is closed, the telescopic rod of the leakage release pushes a first arm to realize rotation of a rotating piece, and the third arm pushes the connecting rod to act, the connecting rod drives the hasp action and realizes circuit breaker electric leakage tripping, and the driving lever is kept away from the conflict limit simultaneously, and the instruction board rotates under the effect of torsional spring and realizes the electric leakage instruction.

2. The leakage circuit breaker with a leakage indication function according to claim 1, wherein: the rotating member comprises a first rotating member and a second rotating member, the first rotating member and the second rotating member are arranged on a partition plate of the shell through the same shaft in a rotating mode, the first arm and the third arm are arranged on the first rotating member, the second arm is arranged on the second rotating member, the second rotating member is provided with a contact supporting rod, the contact supporting rod is in contact supporting fit with the first arm, the first arm rotates to push the contact supporting rod to achieve rotation of the second rotating member, the first contact supporting arm of the torsion spring is in contact supporting with the contact supporting rod, and the torsion spring and the indication plate are sleeved on the same shaft.

3. The leakage breaker with a leakage indication function according to claim 1 or 2, characterized in that: the top of third arm extends to the second region and sets up, the connecting rod extends to the second region, and third arm and connecting rod conflict cooperation position are in the second region, be provided with spacing bump on the baffle of casing, the limiting bump can realize the spacing to the instruction board under the electric leakage instruction state of instruction board.

4. The leakage breaker with a leakage indication function according to claim 2, wherein: the circuit breaker is characterized in that a torsion spring first abutting arm mounting seat is arranged on the abutting rod, the torsion spring first abutting arm abuts against the mounting seat, a limiting step is arranged on the second arm, and a limiting boss on the indicating plate is matched with the limiting step of the second arm to limit the indicating block to rotate under the condition that the circuit breaker is not in leakage tripping or normal closing.

5. The leakage breaker with a leakage indication function according to claim 1 or 2, characterized in that: the indicating block and the limiting boss are both arranged on the connecting sleeve, the indicating block is integrally fan-shaped, the upper top surface of the indicating block is transversely provided with an indicating surface, one side of the indicating block close to the second arm is provided with a collision edge, the outer side of the abutting edge is abutted by the torsion spring second abutting arm, and the inner side of the abutting edge can be pushed by the deflector rod to realize the rotation of the indicating block, so that the non-leakage state display of the circuit breaker is realized.

6. A leakage breaker with leakage indication function according to claim 3, wherein: the indicating block and the limiting boss are both arranged on the connecting sleeve, the indicating block is integrally fan-shaped, the upper top surface of the indicating block is transversely provided with an indicating surface, one side of the indicating block close to the second arm is provided with a collision edge, the outer side of the abutting edge is abutted by the torsion spring second abutting arm, and the inner side of the abutting edge can be pushed by the deflector rod to realize the rotation of the indicating block, so that the non-leakage state display of the circuit breaker is realized.

7. The leakage breaker with leakage indication function according to claim 4, wherein: the indicating block and the limiting boss are both arranged on the connecting sleeve, the indicating block is integrally fan-shaped, the upper top surface of the indicating block is transversely provided with an indicating surface, one side of the indicating block close to the second arm is provided with a collision edge, the outer side of the abutting edge is abutted by the torsion spring second abutting arm, and the inner side of the abutting edge can be pushed by the deflector rod to realize the rotation of the indicating block, so that the non-leakage state display of the circuit breaker is realized.

8. The leakage breaker with a leakage indication function according to claim 2, wherein: a rotation allowance is reserved between the first arm of the first rotating piece and the abutting rod of the second rotating piece.