Modularized residual-current circuit breaker

Abstract

The utility model relates to the technical field of residual-current circuit breakers, in particular to a modularized residual-current circuit breaker, which comprises a first module, a second module, a third module and a fourth module, the first module, the second module and the third module are mutually spliced, and the third module is clamped with the fourth module. The first module, the second module and the third module are each rotationally connected with a handle used for driving the circuit breaker to be switched on and switched off, linkage mechanisms used for driving the circuit breaker to be switched on and switched off are installed in the first module, the second module and the third module, the handles are matched with the linkage mechanisms in a driving mode, and a driving piece is rotationally connected into the fourth module. The driving piece installed in the fourth module is in driving connection with the linkage mechanism in the third module through the connecting piece, the linkage mechanism in the third module can drive the mechanism in the fourth module to operate through the driving piece, the three sets of handles can drive the mechanisms in the four sets of modules to operate, the number of the handles is reduced, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of leakage circuit breakers, in particular to a modular leakage circuit breaker. Background Art

[0002] A leakage circuit breaker is a switch that automatically operates when the leakage current in a circuit exceeds a predetermined value. It has overload and short-circuit protection functions and can be used to protect lines or motors from overload and short circuit, and can also prevent people from electric shock.

[0003] Existing leakage circuit breakers, such as the modular integrated small leakage circuit breaker proposed in patent application number "CN201920271872.X", include an input terminal and an output terminal through a circuit breaker module. The output terminal is located on the side of the circuit breaker module facing away from the input terminal. The leakage module is located at the output terminal position of the circuit breaker module. The leakage module is detachably connected to the circuit breaker module. The side of the leakage module facing the output terminal is provided with an input terminal electrically connected to the output terminal, and the side of the leakage module facing away from the input terminal is provided with an output terminal. It has four groups of circuit breaker modules and four groups of handles.

[0004] However, the existing technology has defects. The four groups of circuit breaker modules are driven and controlled by four groups of handles. Too many handles lead to reduced synchronization effect between multiple groups of handles, and the large number of handles increases the production cost of the circuit breaker. Therefore, a modular leakage circuit breaker is proposed. Utility Model Content

[0005] The purpose of the present utility model is to provide a modular leakage circuit breaker to solve the problems raised in the above background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A modular leakage circuit breaker includes a first module, a second module, a third module, and a fourth module. The first, second, and third modules are spliced ​​together, and the third and fourth modules are snap-connected. The first, second, and third modules are all rotatably connected to a handle for driving the circuit breaker to open and close. The first, second, and third modules are each internally installed with a linkage mechanism for driving the circuit breaker to open and close, and the handle is driven in conjunction with the linkage mechanism.

[0008] The fourth module is internally connected to a driving member for rotation, a connecting cavity is provided between the third module and the fourth module, a connecting member is fixedly connected to one side of the driving member, the connecting member passes through the connecting cavity, and the connecting member is plugged into the linkage mechanism inside the third module.

[0009] Preferably, one side of the first module and the second module is fixed with a clamping column, one side of the second module and the third module is fixed with a groove, and the two groups of clamping columns are respectively assembled with the two groups of grooves in a plug-in manner.

[0010] Preferably, a sealing plate is clamped on the side of the fourth module, a mounting groove is provided on the side of the fourth module, a clamping plate is fixed on the inner side wall of the sealing plate, and the clamping plate is clamped and connected to the mounting groove.

[0011] Preferably, the fourth module and one side of the sealing plate are both fixedly connected with mounting seats, and a leakage driving mechanism is clamped and installed between the two groups of mounting seats.

[0012] Preferably, a connecting handle is commonly mounted on the three groups of handles, and an outer wall of the connecting handle is provided with anti-slip grooves.

[0013] Preferably, a connecting groove is provided inside the connecting handle, two sets of inserting plates are fixedly connected in the connecting groove, and a clamping groove is provided on the side wall of the handle, and the inserting plates are clamped with the clamping groove.

[0014] Beneficial effects of the utility model:

[0015] The utility model is assembled by the first module, the second module and the third module, the third module and the fourth module are installed by clipping, and the driving member installed inside the fourth module is driven and connected with the linkage mechanism inside the third module through the connecting member. When the three groups of handles drive the linkage mechanism inside the first module, the second module and the third module to operate, the linkage mechanism inside the third module will drive the mechanism inside the fourth module to operate through the driving member. The three groups of handles can drive the mechanism inside the four groups of modules to operate, thereby reducing the number of handles and lowering production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, it is possible for a person skilled in the art to derive other drawings based on these drawings without inventive effort.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the module splicing structure of the utility model;

[0019] Figure 3 This is a side structural diagram of the third module of the utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the fourth module of the present utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the sealing plate of the utility model;

[0022] Figure 6 This is a schematic diagram of the installation structure of the drive component of the utility model;

[0023] The reference numerals in the figures are as follows:

[0024] 1. First module; 2. Second module; 3. Third module; 4. Fourth module; 5. Closing plate; 6. Handle; 7. Connecting handle; 8. Connecting slot; 9. Insert plate; 10. Card slot; 11. Card column; 12. Groove; 13. Driving member; 14. Connecting member; 15. Linking mechanism; 16. Connecting cavity; 17. Leakage driving mechanism; 19. Anti-slip groove; 20. Mounting seat; 21. Card plate; 22. Mounting slot. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] A modular leakage circuit breaker, such as Figures 1-6 As shown, it includes a first module 1, a second module 2, a third module 3 and a fourth module 4. The first module 1, the second module 2 and the third module 3 are spliced ​​with each other, and the third module 3 and the fourth module 4 are clamped. The first module 1, the second module 2 and the third module 3 are all rotatably connected with a handle 6 for driving the circuit breaker to open and close. The first module 1, the second module 2 and the third module 3 are all installed with a linkage mechanism 15 for driving the circuit breaker to open and close. The handle 6 is driven and cooperated with the linkage mechanism 15. Among the four groups of modules of this circuit breaker, three groups are spliced, and the fourth module 4 is clamped with the third module 3, so that the four groups of modules are installed. The leakage circuit breaker is modularized and easy to assemble and maintain. By toggling the handle 6, the linkage mechanism 15 inside the circuit breaker can be driven to operate and control the circuit breaker to change state.

[0027] The fourth module 4 is internally connected to a driving member 13 for rotation, and a connecting cavity 16 is opened between the third module 3 and the fourth module 4. A connecting member 14 is fixedly connected to one side of the driving member 13, and the connecting member 14 passes through the connecting cavity 16. The connecting member 14 is plugged into the linkage mechanism 15 inside the third module 3. A mechanism for controlling the state of the fourth group of circuit breakers is provided inside the fourth module 4, which is similar to the linkage mechanism 15 inside the other three groups of modules. It is a prior art and will not be described in detail. When the third module 3 is running, since the linkage mechanism 15 of the third module 3 rotates with the driving member 13 through the connecting member 14, the connecting cavity 16 facilitates the driving connection between the third module 3 and the fourth module 4. Therefore, the fourth module 4 does not need a handle 6, and can drive the internal operation of the fourth module 4 by relying on the linkage with the third module 3.

[0028] The first module 1, the second module 2 and the third module 3 are assembled, the third module 3 and the fourth module 4 are installed by snap-fitting, and the driving member 13 installed inside the fourth module 4 is driven and connected to the linkage mechanism 15 inside the third module 3 through the connecting member 14. When the three groups of handles 6 drive the linkage mechanism 15 inside the first module 1, the second module 2 and the third module 3 to operate, the linkage mechanism 15 inside the third module 3 will drive the mechanism inside the fourth module 4 to operate through the driving member 13. The three groups of handles 6 can drive the mechanism inside the four groups of modules to operate, thereby reducing the number of handles 6 and reducing production costs.

[0029] like Figure 2-Figure 3 As shown, one side of the first module 1 and the second module 2 is fixed with a clamping column 11, and one side of the second module 2 and the third module 3 is fixed with a groove 12. The two groups of clamping columns 11 are respectively assembled with the two groups of grooves 12 in a plug-in manner.

[0030] The first module 1 , the second module 2 and the third module 3 are spliced ​​together through the clamping column 11 and the groove 12 , and then fixed by fasteners such as bolts. The modular leakage circuit breaker is easy to disassemble and assemble.

[0031] like Figure 4-Figure 5 As shown, the side of the fourth module 4 is clamped with a sealing plate 5 , a mounting groove 22 is opened on the side of the fourth module 4 , a clamping plate 21 is fixed to the inner side wall of the sealing plate 5 , and the clamping plate 21 is clamped and connected to the mounting groove 22 .

[0032] The sealing plate 5 and the fourth module 4 are installed through the sealing plate 5 and the installation groove 22 , and the sealing plate 5 encapsulates the interior of the fourth module 4 .

[0033] like Figure 4-Figure 5 As shown, one side of the fourth module 4 and the sealing plate 5 are fixedly connected with a mounting seat 20, and the leakage driving mechanism 17 is clamped and installed between the two groups of mounting seats 20.

[0034] The fourth module 4 and the mounting base 20 on the side of the sealing plate 5 are used together to mount the leakage driving mechanism 17. When an abnormality occurs in the circuit, the leakage driving mechanism 17 will control the circuit breaker to trip and protect the circuit in time.

[0035] like Figures 1-4 As shown, the three groups of handles 6 are commonly connected with a connecting handle 7 , and the outer wall of the connecting handle 7 is provided with anti-slip grooves 19 .

[0036] The connecting handle 7 connects the three groups of handles 6 so that the three groups of handles 6 can be moved simultaneously, thereby increasing the synchronization of the operation of the handles 6. The anti-slip pattern 19 increases the surface roughness of the connecting handle 7 for easy movement.

[0037] like Figures 1-4 As shown, a connecting groove 8 is provided inside the connecting handle 7 , and two sets of inserting plates 9 are fixedly connected in the connecting groove 8 . A clamping groove 10 is provided on the side wall of the handle 6 , and the inserting plates 9 are clamped with the clamping groove 10 .

[0038] The ends of the three groups of handles 6 are installed in the connecting groove 8, and the plug plate 9 enables the connecting handle 7 to be connected with the card slot 10 to connect the three groups of handles 6.

[0039] The working principle of a modular leakage circuit breaker provided by the utility model is as follows:

[0040] The first module 1, the second module 2 and the third module 3 are assembled, the third module 3 and the fourth module 4 are installed by snap-fitting, and the driving member 13 installed inside the fourth module 4 is driven and connected to the linkage mechanism 15 inside the third module 3 through the connecting member 14. When the three groups of handles 6 drive the linkage mechanism 15 inside the first module 1, the second module 2 and the third module 3 to operate, the linkage mechanism 15 inside the third module 3 will drive the mechanism inside the fourth module 4 to operate through the driving member 13. The three groups of handles 6 can drive the mechanism inside the four groups of modules to operate, thereby reducing the number of handles 6 and reducing production costs.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A modular leakage circuit breaker, characterized in that: The invention comprises a first module (1), a second module (2), a third module (3) and a fourth module (4); the first module (1), the second module (2) and the third module (3) are spliced ​​with each other; the third module (3) and the fourth module (4) are snap-connected; the first module (1), the second module (2) and the third module (3) are all rotatably connected with a handle (6) for driving the circuit breaker to open and close; the first module (1), the second module (2) and the third module (3) are all internally installed with a linkage mechanism (15) for driving the circuit breaker to open and close; the handle (6) and the linkage mechanism (15) are driven in cooperation; The fourth module (4) is internally rotatably connected to a driving member (13); a connecting cavity (16) is provided between the third module (3) and the fourth module (4); a connecting member (14) is fixedly connected to one side of the driving member (13); the connecting member (14) passes through the connecting cavity (16); and the connecting member (14) is plug-connected to a linkage mechanism (15) inside the third module (3).

2. A modular leakage circuit breaker according to claim 1, characterized in that: One side of each of the first module (1) and the second module (2) is fixedly connected with a clamping column (11), and one side of each of the second module (2) and the third module (3) is fixedly connected with a groove (12), and the two groups of clamping columns (11) are respectively plug-connected and assembled with the two groups of grooves (12).

3. The modular leakage circuit breaker according to claim 1, characterized in that: The side of the fourth module (4) is clamped with a sealing plate (5), the side of the fourth module (4) is provided with a mounting groove (22), the inner side wall of the sealing plate (5) is fixed with a clamping plate (21), and the clamping plate (21) is clamped and connected to the mounting groove (22).

4. The modular leakage circuit breaker according to claim 1, characterized in that: One side of the fourth module (4) and the sealing plate (5) is fixedly connected with a mounting seat (20), and a leakage driving mechanism (17) is clamped and installed between the two groups of mounting seats (20).

5. The modular leakage circuit breaker according to claim 1, characterized in that: The three groups of handles (6) are commonly connected and mounted with a connecting handle (7), and an outer wall of the connecting handle (7) is provided with anti-slip grooves (19).

6. A modular leakage circuit breaker according to claim 5, characterized in that: A connecting groove (8) is provided inside the connecting handle (7), two groups of inserting plates (9) are fixedly connected inside the connecting groove (8), a clamping groove (10) is provided on the side wall of the handle (6), and the inserting plates (9) are clamped with the clamping groove (10).

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