Circuit breaker electric operation structure

Abstract

The utility model relates to the technical field of circuit breaker electric operation structures, in particular to a circuit breaker electric operation structure, which comprises an outer frame, one side of the outer frame is fixedly connected with an outer sealing plate through a bolt, an operation assembly is clamped in the outer frame, the operation assembly comprises an inner frame, the inner frame is clamped in the outer frame, one side of the inner frame is fixedly connected with an inner sealing plate, and the inner sealing plate is fixedly connected with the inner sealing plate. An electric operation assembly used for controlling the state of the circuit breaker is fixedly connected between the inner frame and the inner sealing plate, one side of the inner frame is provided with an operation opening used for the manual operation structure to penetrate through and an indication opening used for displaying the state of the circuit breaker, and the operation opening and the indication opening both penetrate through the outer frame and the outer sealing plate; the electric operation structure in the circuit breaker is independently installed in the inner frame, the electric operation structure is modularized, use of the electric operation structure is not affected, the electric operation structure can be conveniently installed in the circuit breaker, and the circuit breaker is compact in structure and convenient to disassemble and maintain.

Description

Technical Field

[0001] The utility model relates to the field of the electric operating structure of a circuit breaker, in particular to an electric operating structure of a circuit breaker. Background Technique

[0002] A circuit breaker refers to a switching device that can close, carry, and break the current under normal circuit conditions and can close, carry, and break the current under abnormal circuit conditions within a specified time. The circuit breaker internally includes a manual operating structure and an electric operating structure, and both the manual operating structure and the electric operating structure can convert the state of the circuit breaker.

[0003] For example, in an electric operating structure of an existing circuit breaker, such as a miniature circuit breaker and its electric operating mechanism proposed in the patent application number "CN201720197049.X", by means of structures such as a driving motor, a worm, and a sector gear, the circumferential contact time of two gears is shortened, and the service life of the gears is greatly extended. The operating structure is installed inside the circuit breaker.

[0004] However, the electric operating structure of the existing technology is directly installed inside the circuit breaker, with a loose structure, and it is not convenient to maintain and disassemble between structures. It is relatively inconvenient to assemble and disassemble the electric operating structure inside the circuit breaker. Therefore, an electric operating structure of a circuit breaker is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide an electric operating structure of a circuit breaker to solve the problems proposed in the above background technique.

[0006] The purpose of the utility model can be realized by the following technical solutions:

[0007] An electric operating structure of a circuit breaker includes an outer frame. One side of the outer frame is fixedly connected with an outer sealing plate through bolts. An operating component is clamped inside the outer frame. The operating component includes an inner frame, which is clamped inside the outer frame. One side of the inner frame is fixedly connected with an inner sealing plate. An electric operating component for controlling the state of the circuit breaker is fixedly connected between the inner frame and the inner sealing plate. An operating port for the manual operating structure to penetrate and an indicating port for displaying the state of the circuit breaker are opened on one side of the inner frame. Both the operating port and the indicating port penetrate the outer frame and the outer sealing plate.

[0008] Preferably, a plurality of clamping plates are fixedly connected inside the outer frame, and the plurality of clamping plates are all in clamping fit with the side wall of the inner frame.

[0009] Preferably, a clamping seat is fixedly connected inside the outer frame. A slot is opened on one side of the clamping seat close to the inner frame. An elastic plate is fixedly connected to the side wall of the inner frame. The shape of the elastic plate is set as an "L" shape, and the elastic plate is in plug-in fit with the slot.

[0010] Preferably, a clamping groove is formed in the inner wall of the slot, a fixing block is fixedly connected to the end of the elastic plate, the fixing block is clamped and matched with the upper end of the clamping seat, a clamping block is fixedly connected to one side of the elastic plate, and the clamping block is clamped and matched with the clamping groove.

[0011] Preferably, a rectangular opening is formed between the side wall of the outer frame and the side wall of the outer sealing plate, a dust-proof plate is clamped in the rectangular opening, and a heat dissipation hole is formed in one side of the inner frame and communicated with the dust-proof plate.

[0012] Preferably, mounting grooves are formed on both sides of the rectangular opening, mounting plates are fixedly connected to both sides of the dust-proof plate, and the two groups of mounting plates are respectively fixedly connected to the two groups of mounting grooves through bolts.

[0013] The beneficial effects of the present utility model are as follows:

[0014] By separately installing the electric operation structure inside the circuit breaker in the inner frame, the electric operation structure is modularized, which not only does not affect the use of the electric operation structure, but also facilitates the installation of the electric operation structure inside the circuit breaker, and the structure is compact and convenient for disassembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings;

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the installation structure of the operation component of the present utility model;

[0018] Figure 3 is a schematic diagram of the internal structure of the operation component of the present utility model;

[0019] Figure 4 is a schematic diagram of the outer frame structure of the present utility model;

[0020] Figure 5 is a schematic cross-sectional view of the clamping seat of the present utility model;

[0021] The reference numerals in the drawings are as follows:

[0022] 1. Outer frame; 2. Outer sealing plate; 3. Manipulation opening; 4. Indication opening; 5. Mounting groove; 6. Dust-proof plate; 7. Mounting plate; 8. Inner frame; 9. Inner sealing plate; 10. Clamping plate; 11. Clamping seat; 12. Slot; 13. Elastic plate; 14. Clamping block; 15. Fixing block; 16. Clamping groove; 17. Heat dissipation hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0024] An electric operating structure of a circuit breaker, as Figures 1-5 shown, includes an outer frame 1. One side of the outer frame 1 is fixedly connected with an outer sealing plate 2 by bolts. The outer frame 1 and the outer sealing plate 2 form the circuit breaker housing. An operating assembly is clamped inside the outer frame 1. The operating assembly includes an inner frame 8, which is clamped inside the outer frame 1. One side of the inner frame 8 is fixedly connected with an inner sealing plate 9. An electric operating assembly for controlling the state of the circuit breaker is fixedly connected between the inner frame 8 and the inner sealing plate 9. The electric operating assembly is an existing structure and is an electric closing and opening structure composed of multiple groups of gears, semi-gears, cylinders, and worm gears. An operating port 3 for the penetration of the manual operating structure and an indicating port 4 for displaying the state of the circuit breaker are opened on one side of the inner frame 8. Both the operating port 3 and the indicating port 4 penetrate the outer frame 1 and the outer sealing plate 2. The side wall of the inner frame 8 is provided with holes according to specific usage conditions, which will not affect the use of the electric operating structure.

[0025] By separately installing the electric operating structure inside the circuit breaker in the inner frame 8 and sealing it with the inner sealing plate 9, and clamping and installing the inner frame 8 inside the circuit breaker, the electric operating structure is modularized, which will neither affect the use of the electric operating structure nor facilitate the installation of the electric operating structure inside the circuit breaker. The structure is compact and convenient for disassembly and maintenance. When the electric operating structure is damaged, the inner frame 8 can be disassembled from inside the outer frame 1 and taken out separately for repair.

[0026] A plurality of clamping plates 10 are fixedly connected inside the outer frame 1, and the plurality of clamping plates 10 are all in clamping cooperation with the side wall of the inner frame 8.

[0027] As Figures 2-5 shown, the clamping plates 10 limit the installation position of the inner frame 8, facilitating the installation of the inner frame 8.

[0028] A card seat 11 is fixedly connected inside the outer frame 1. A slot 12 is opened on one side of the card seat 11 close to the inner frame 8. An elastic plate 13 is fixedly connected to the side wall of the inner frame 8. The shape of the elastic plate 13 is set as an "L" shape, and the elastic plate 13 is inserted into the slot 12 in a plug-in fit.

[0029] As Figures 2-5 shown, when installing the operating assembly, the inner frame 8 is installed between the plurality of clamping plates 10, so that the elastic plate 13 is inserted into the slot 12 to limit the inner frame 8.

[0030] A clamping groove 16 is formed in the inner wall of the slot 12. A fixing block 15 is fixedly connected to the end of the elastic plate 13. The fixing block 15 is in clamping fit with the upper end of the clamping seat 11. A clamping block 14 is fixedly connected to one side of the elastic plate 13. The clamping block 14 is in clamping fit with the clamping groove 16.

[0031] As Figures 2-5 shown, the clamping block 14 on the side wall of the elastic plate 13 is in clamping connection with the clamping groove 16 on the side wall of the slot 12, preventing the inner frame 8 from detaching from the clamping seat 11. By squeezing the fixing block 15, the elastic plate 13 is attached to the side wall of the inner frame 8, causing the clamping block 14 to disengage from the clamping groove 16, and the elastic plate 13 can be pulled out from the clamping groove 16. The clamping block 14 and the clamping groove 16 enhance the installation stability of the inner frame 8 and prevent the inner frame 8 from shifting or falling off during the assembly of the circuit breaker housing.

[0032] A rectangular opening is formed jointly between the side wall of the outer frame 1 and the side wall of the outer sealing plate 2. A dust-proof plate 6 is clamped in the rectangular opening. A heat dissipation hole 17 is formed on one side of the inner frame 8. The heat dissipation hole 17 is communicated with the dust-proof plate 6.

[0033] As Figures 3-5 shown, the dust-proof plate 6 prevents dust from entering during the heat dissipation of the circuit breaker, and the heat dissipation hole 17 facilitates the heat dissipation inside the inner frame 8.

[0034] Mounting grooves 5 are formed on both sides of the rectangular opening. Mounting plates 7 are fixedly connected to both sides of the dust-proof plate 6. The two groups of mounting plates 7 are respectively fixedly connected to the two groups of mounting grooves 5 through bolts.

[0035] As Figure 1 shown, the dust-proof plate 6 is installed on the side wall of the outer frame 1 through the mounting plate 7, and is detachable, which is convenient for cleaning or replacement.

[0036] The working principle of an electric operating structure of a circuit breaker provided by the present utility model is as follows:

[0037] By separately installing the electric operating structure inside the circuit breaker in the inner frame 8 and sealing it with the inner sealing plate 9, and clamping and installing the inner frame 8 inside the circuit breaker, the electric operating structure is modularized, which not only does not affect the use of the electric operating structure, but also facilitates the installation of the electric operating structure inside the circuit breaker. The structure is compact and convenient for disassembly and maintenance. When the electric operating structure is damaged, the inner frame 8 can be disassembled from the inside of the outer frame 1 and taken out for repair separately.

[0038] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A circuit breaker electric operation structure, comprising an outer frame (1), characterized in that: An outer sealing plate (2) is fixedly connected to one side of the outer frame (1) via bolts, an operating assembly is clamped inside the outer frame (1), and the operating assembly comprises an inner frame (8), the inner frame (8) is clamped inside the outer frame (1), an inner sealing plate (9) is fixedly connected to one side of the inner frame (8), an electric operating assembly for controlling the state of the circuit breaker is fixedly connected between the inner frame (8) and the inner sealing plate (9), an operating port (3) for a manual operating structure to pass through and an indicating port (4) for displaying the state of the circuit breaker are provided on one side of the inner frame (8), and both the operating port (3) and the indicating port (4) pass through the outer frame (1) and the outer sealing plate (2).

2. The circuit breaker electric operation structure according to claim 1, characterized in that: The outer frame (1) has multiple sets of clamping plates (10) fixedly connected inside, and the multiple sets of clamping plates (10) are all clamped and matched with the side walls of the inner frame (8).

3. The circuit breaker electric operation structure according to claim 1, characterized in that: A card seat (11) is fixedly connected inside the outer frame (1), a slot (12) is provided on a side of the card seat (11) close to the inner frame (8), an elastic plate (13) is fixedly connected to the side wall of the inner frame (8), the elastic plate (13) is set in an "L" shape, and the elastic plate (13) is plugged into and matched with the slot (12).

4. The circuit breaker electric operation structure according to claim 3, characterized in that: The inner wall of the slot (12) is provided with a card slot (16); the end of the elastic plate (13) is fixedly connected with a fixing block (15); the fixing block (15) is card-engaged with the upper end of the card seat (11); one side of the elastic plate (13) is fixedly connected with a card block (14); the card block (14) is card-engaged with the card slot (16).

5. The circuit breaker electric operation structure according to claim 1, characterized in that: A rectangular opening is provided between the side wall of the outer frame (1) and the side wall of the outer sealing plate (2), a dustproof plate (6) is clamped in the rectangular opening, a heat dissipation hole (17) is provided on one side of the inner frame (8), and the heat dissipation hole (17) is connected to the dustproof plate (6).

6. The circuit breaker electric operation structure according to claim 5, characterized in that: Both sides of the rectangular opening are provided with mounting grooves (5), both sides of the dustproof plate (6) are fixedly connected with mounting plates (7), and two groups of mounting plates (7) are respectively fixedly connected to the two groups of mounting grooves (5) by bolts.

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