Circuit breaker capable of replacing accessories without power cut
By setting a partition plate and a series circuit breaker control mechanism in the circuit breaker housing, the problem of circuit unprotected circuit when replacing circuit breaker accessories is solved, and safe replacement of circuit breaker accessories is achieved without power outage.
Patent Information
- Application Number
- CN202422186804.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-06
AI Technical Summary
When replacing household circuit breaker accessories, the circuit breaker needs to be disconnected from the circuit, resulting in the circuit being unprotected during the replacement of the accessories and being unable to prevent overloading in time.
A circuit breaker is designed to replace accessories without power outage. By setting a partition plate in the shell, the shell is divided into large chambers such as two sides. Control elements are respectively arranged in the chambers on both sides to form a circuit breaker control mechanism, and two sets of circuit breaker control mechanisms are connected in series in the circuit to ensure that when one set of circuit breaker control mechanisms fail, the other group can continue to protect the circuit.
It realizes the replacement of circuit breaker accessories without power outage, ensuring that the circuit is always protected during the entire replacement process, increasing the safety of the device.
Smart Images
Figure CN223023172U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of circuit breakers, in particular to a circuit breaker for replacing accessories without power interruption. Background Technique
[0002] A circuit breaker refers to a switching device that can close, carry, and interrupt the current under normal circuit conditions and can close, carry, and interrupt the current under abnormal circuit conditions within a specified time, mainly playing the role of protecting the circuit. To ensure the normal operation of the circuit breaker, it is necessary to regularly check the working state of the circuit breaker, such as whether the contacts are worn and whether the trip device is sensitive, and timely replace the damaged accessories of the circuit breaker.
[0003] Currently, when replacing accessories of a household circuit breaker, the circuit breaker needs to be disconnected from the circuit. At this time, the circuit is connected by a standby circuit. After the accessory replacement is completed, the circuit breaker is restarted. During this process, there is no circuit breaker protection in the circuit, so the circuit cannot be protected in time when the circuit is overloaded, affecting the normal use of the circuit. Content of the Utility Model
[0004] The purpose of the utility model is to provide a circuit breaker for replacing accessories without power interruption. In this device, two groups of circuit breaker elements are connected in series in the housing. When one group is replaced, the other group of elements can ensure the normal protection of the circuit, so as to solve the problems put forward in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A circuit breaker for replacing accessories without power interruption, including a housing, a partition plate is fixedly installed on the inner wall of the housing, the partition plate divides the interior of the housing into two equal-sized left and right chambers, the two side surfaces of the housing are open, control elements are respectively arranged in the left and right chambers of the housing, and a variety of the control elements respectively form a set of circuit breaking control mechanisms in the two chambers of the housing. An upper wiring terminal is arranged on the upper surface of the housing, a lower wiring terminal is arranged on the lower surface of the housing, 2 manual switches are rotatably installed on the front surface of the housing, the manual switches are respectively connected to the control elements on both sides, and the upper wiring terminal and the lower wiring terminal are connected in series with the circuit breaking control mechanisms formed by the control elements in the two chambers on both sides of the housing.
[0006] Preferably, disassembly and assembly structures are arranged on both sides of the housing, and the disassembly and assembly structures are provided with cover plates to realize the quick opening and installation of the housing surface.
[0007] Adopting the above technical solution, the cover plate can be quickly disassembled and installed on the housing surface by using the disassembly and assembly structure.
[0008] Preferably, the disassembly and assembly structure includes a cover plate, which is the same size as the side surface of the outer shell. A plurality of first connection holes are penetrated through the surface of the cover plate, and the first connection holes are correspondingly arranged with the second connection holes on the inner wall of the outer shell. The second connection holes are fixedly installed on the inner wall of the outer shell through brackets, and the first connection holes and the second connection holes are threadedly connected through connection bolts.
[0009] With the above technical solution, the cover plate and the outer shell can be connected and disassembled by using connection bolts.
[0010] Preferably, an open - circuit structure is arranged inside the outer shell. The open - circuit structure is provided with a moving contact and a fixed contact to ensure the smoothness of the circuit while realizing the disconnection of one set of control components and the circuit.
[0011] With the above technical solution, the control components can be disconnected from the circuit by using the open - circuit structure.
[0012] Preferably, the open - circuit structure includes a moving contact, which is slidably installed on the inner wall of the outer shell. A fixed contact is arranged on one side of the moving contact, and the fixed contact is fixedly installed on the inner wall of the outer shell. The moving contact and the fixed contact are in contact. A return spring is arranged on one side of the moving contact, and the other end of the return spring is fixedly installed on the inner wall of the outer shell. The other side surface of the moving contact is in contact with a push plate, and the push plate is fixedly installed on the inner surface of the cover plate. The moving contact and the fixed contact constitute a movable switch structure, and there are two sets of the movable switch structures.
[0013] With the above technical solution, the on - off of the circuit can be controlled by the contact and separation of the moving contact and the fixed contact.
[0014] Preferably, the two sets of movable switch structures are respectively arranged at both ends of the open - circuit control mechanism composed of control components. The movable switch structure forms an on - off structure between the control components and the circuit. The movable switch structure and the open - circuit control mechanism are commonly connected in parallel at both ends of a branch, and a resistor with the same resistance value as the open - circuit control mechanism is connected in series on the branch. The circuit composed of the movable switch structure and the open - circuit control mechanism and the branch are commonly connected in series in the circuit between the upper connection terminal and the lower connection terminal.
[0015] With the above technical solution, the movable switch structures on both sides of the open - circuit control mechanism can realize the disconnection of one side of the open - circuit control mechanism and the circuit without power failure of the circuit.
[0016] Compared with the prior art, the beneficial effect of the present utility model is that the circuit breaker for replacing parts without power failure:
[0017] 1. In this device, a partition board is arranged inside the outer shell, so that chambers of equal size are formed on both sides inside the outer shell. Control elements are respectively arranged in the chambers on both sides to form an open - circuit control mechanism. The open - circuit control mechanisms on both sides are connected in series in the circuit to protect the circuit. When one group of open - circuit control mechanisms fails, the other group of series - connected open - circuit control mechanisms can work normally to protect the circuit, increasing the safety of the device;
[0018] 2. The two sides of the outer shell of this device are open - ended, and a cover plate is arranged to be connected with the outer shell. A connection hole 1 is arranged on the surface of the cover plate to align with the connection hole 2 inside the outer shell. The cover plate and the outer shell can be quickly docked by using the connection hole 1 and the connection hole 2, and are connected by connection bolts, so that the two sides of the outer shell can be quickly disassembled and assembled, facilitating the repair and replacement of the accessories inside the outer shell;
[0019] 3. In this device, a moving contact and a fixed contact are arranged inside the outer shell. Under the action of a push plate and a return spring on the surface of the cover plate, the moving contact makes contact with and separates from the fixed contact. When the cover plate is opened, the moving contact separates from the fixed contact, so that both ends of the control element are disconnected from the circuit, and the circuit flows through the branch. Without power - off of the device, the replacement of the accessories inside the outer shell can be realized. Description of the Drawings
[0020] Figure 1 is a schematic diagram of the external structure of the outer shell of the present utility model;
[0021] Figure 2 is a schematic diagram of the internal structure of the outer shell of the present utility model;
[0022] Figure 3 is a schematic diagram of the cover - plate structure of the present utility model;
[0023] Figure 4 is a schematic diagram of the side - sectional structure of the outer shell of the present utility model;
[0024] Figure 5 is a schematic diagram of the circuit structure of the moving contact and the fixed contact of the present utility model.
[0025] In the figure: 1. Outer shell; 2. Partition board; 3. Control element; 4. Upper wiring terminal; 5. Lower wiring terminal; 6. Manual switch; 7. Cover plate; 8. Connection hole 1; 9. Connection hole 2; 10. Connection bolt; 11. Moving contact; 12. Fixed contact; 13. Return spring; 14. Push plate. Detailed Embodiments
[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0027] Please refer to Figures 1-5 , the present invention provides a technical solution: a circuit breaker for replacing accessories without power interruption, including a housing 1, a partition plate 2, a control element 3, an upper wiring terminal 4, a lower wiring terminal 5, a manual switch 6, a cover plate 7, a first connection hole 8, a second connection hole 9, a connection bolt 10, a moving contact 11, a fixed contact 12, a return spring 13, and a push plate 14.
[0028] A partition plate 2 is fixedly installed on the inner wall of the housing 1. The partition plate 2 divides the interior of the housing 1 into two equal-sized left and right chambers. The two side surfaces of the housing 1 are open. Control elements 3 are respectively arranged in the left and right chambers inside the housing 1. A variety of control elements 3 respectively form a set of circuit-breaking control mechanisms in the two chambers of the housing 1. An upper wiring terminal 4 is arranged on the upper surface of the housing 1, and a lower wiring terminal 5 is arranged on the lower surface of the housing 1. Two manual switches 6 are rotatably installed on the front surface of the housing 1, and the manual switches 6 are respectively connected to the control elements 3 on both sides. The upper wiring terminal 4 and the lower wiring terminal 5 are connected in series with the circuit-breaking control mechanisms formed by the control elements 3 in the two chambers on both sides of the housing 1. Disassembly and assembly structures are arranged on both sides of the housing 1. The disassembly and assembly structures are provided with a cover plate 7 to realize the quick opening and installation of the surface of the housing 1. The disassembly and assembly structure includes a cover plate 7. The cover plate 7 is the same size as the side surface of the housing 1. A plurality of first connection holes 8 are penetrated on the surface of the cover plate 7. The first connection holes 8 are correspondingly arranged with the second connection holes 9 on the inner wall of the housing 1. The second connection holes 9 are fixedly installed on the inner wall of the housing 1 through brackets, and the first connection holes 8 and the second connection holes 9 are threadedly connected by connection bolts 10;
[0029] Such as Figure 1 , Figure 2 and Figure 3As shown, when in use, the upper connection terminal 4 and the lower connection terminal 5 are respectively connected to the circuit, so that the device is connected in series in the circuit to protect the circuit. When the circuit is overloaded or an abnormality occurs, the open circuit control mechanism composed of the control element 3 inside the housing 1 controls the circuit, thereby protecting the circuit. Or the on-off of the circuit is manually controlled by the manual switch 6 to achieve the control of the circuit. Since there are two groups of open circuit control mechanisms connected in series inside the housing 1, when one group has an abnormality, the other group of open circuit control mechanisms can continuously protect the circuit, increasing the safety of the device. When it is necessary to repair and replace the control element 3, the connection bolts 10 on the side surface of the housing 1 are removed from the first connection hole 8 and the second connection hole 9, so that the cover plate 7 is separated from the side surface of the housing 1, the inside of the housing 1 is exposed, and the control element 3 is replaced. After the replacement is completed, after aligning the first connection hole 8 on the surface of the cover plate 7 with the second connection hole 9 on the surface of the housing 1, the cover plate 7 and the housing 1 are connected again by using the connection bolts 10.
[0030] An open circuit structure is provided inside the housing 1. The open circuit structure is provided with a moving contact 11 and a fixed contact 12 to ensure the smoothness of the circuit while realizing the disconnection of one group of control elements 3 from the circuit. The open circuit structure includes a moving contact 11. The moving contact 11 is slidably installed on the inner wall of the housing 1, and a fixed contact 12 is provided on one side of the moving contact 11. The fixed contact 12 is fixedly installed on the inner wall of the housing 1. The moving contact 11 and the fixed contact 12 are in contact. A return spring 13 is provided on one side of the moving contact 11. The other end of the return spring 13 is fixedly installed on the inner wall of the housing 1. The other side surface of the moving contact 11 is in contact with the push plate 14, and the push plate 14 is fixedly installed on the inner surface of the cover plate 7. The moving contact 11 and the fixed contact 12 constitute a movable switch structure. There are two groups of movable switch structures, and the two groups of movable switch structures are respectively arranged at both ends of the open circuit control mechanism composed of the control element 3. The movable switch structure forms an on-off structure between the control element 3 and the circuit. The movable switch structure and the open circuit control mechanism are commonly connected in parallel at both ends of a branch, and a resistor with the same resistance value as the open circuit control mechanism is connected in series on the branch. The circuit composed of the movable switch structure and the open circuit control mechanism and the branch are commonly connected in series in the circuit of the upper connection terminal 4 and the lower connection terminal 5;
[0031] As Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, during the process of removing the cover plate 7 to replace the control element 3, the cover plate 7 drives the push plate 14 to move outwards synchronously, so that the moving contact 11 loses the thrust of the push plate 14. Under the action of the return spring 13, the moving contact 11 slides outwards along the inner wall of the housing 1, and the moving contact 11 is separated from the fixed contact 12. After the moving contact 11 is separated from the fixed contact 12, both ends of the open-circuit control mechanism composed of the control element 3 are disconnected from the circuit. At this time, the current from the upper connection terminal 4 and the lower connection terminal 5 flows through the parallel branches, ensuring the smoothness of the circuit. There is no current passing through the open-circuit control mechanism on this side, and the control element 3 in the open-circuit control mechanism can be repaired and replaced. After the replacement is completed, when connecting the cover plate 7, the cover plate 7 drives the push plate 14 to push the moving contact 11 to slide and contact the fixed contact 12, and stretches the return spring 13. At this time, the open-circuit control mechanism is reconnected to the circuit of the upper connection terminal 4 and the lower connection terminal 5.
[0032] Working principle: When using the circuit breaker for replacing accessories without power interruption, connect the upper connection terminal 4 and the lower connection terminal 5 to the circuit respectively, so that the device is connected in series with the circuit to protect the circuit. However, when the accessories need to be replaced, use the connecting bolt 10 to remove the cover plate 7 from the side surface of the housing 1. When the cover plate 7 is removed, the cover plate 7 drives the push plate 14 to move. The moving contact 11 loses the acting force of the push plate 14 and slides under the action of the return spring 13, so that the moving contact 11 is separated from the fixed contact 12, thereby disconnecting both ends of the open-circuit control mechanism on this side from the circuit, and the accessories can be replaced safely. After the replacement is completed, reconnect the cover plate 7 to the housing 1. The cover plate 7 drives the push plate 14 to move, and the push plate 14 pushes the moving contact 11 to contact the fixed contact 12. At this time, the open-circuit control mechanism is reconnected to the circuit of the upper connection terminal 4 and the lower connection terminal 5, increasing the overall practicability.
[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A circuit breaker for replacing accessories without power outage, comprising a housing (1), a partition plate (2) fixedly mounted on the inner wall of the housing (1), the partition plate (2) dividing the interior of the housing (1) into two equal-sized left and right chambers, the two side surfaces of the housing (1) being open, control elements (3) being respectively arranged in the left and right chambers inside the housing (1), a plurality of control elements (3) forming a group of circuit breaker control mechanisms in the two chambers of the housing (1), an upper wiring terminal (4) being arranged on the upper surface of the housing (1), a lower wiring terminal (5) being arranged on the lower surface of the housing (1), two manual switches (6) being rotatably mounted on the front surface of the housing (1), the manual switches (6) being respectively connected to the control elements (3) on both sides, characterized in that: The upper wiring terminal (4) and the lower wiring terminal (5) are connected in series with a circuit breaker control mechanism formed by control elements (3) in chambers on both sides of the housing (1).
2. A circuit breaker for replacing accessories without power outage according to claim 1, characterized in that: Disassembly and assembly structures are provided on both sides of the shell (1), and the disassembly and assembly structures are provided with cover plates (7) to realize rapid opening and installation of the surface of the shell (1).
3. A circuit breaker for replacing accessories without power outage according to claim 2, characterized in that: The disassembly and assembly structure comprises a cover plate (7), the cover plate (7) being of the same size as the side surface of the outer shell (1), a plurality of connection holes (8) being provided through the surface of the cover plate (7), the connection holes (8) being provided correspondingly to connection holes (9) on the inner wall of the outer shell (1), the connection holes (9) being fixedly mounted on the inner wall of the outer shell (1) via a bracket, and the connection holes (8) and the connection holes (9) being threadedly connected via connection bolts (10).
4. A circuit breaker for replacing accessories without power outage according to claim 1, characterized in that: A disconnecting structure is arranged inside the housing (1), and the disconnecting structure is provided with a moving contact (11) and a fixed contact (12) to ensure that the circuit is unobstructed while disconnecting one group of control elements (3) from the circuit.
5. A circuit breaker for replacing accessories without power outage according to claim 4, characterized in that: The circuit breaker structure comprises a moving contact (11), the moving contact (11) is slidably mounted on the inner wall of the housing (1), and a fixed contact (12) is arranged on one side of the moving contact (11), and the fixed contact (12) is fixedly mounted on the inner wall of the housing (1), the moving contact (11) and the fixed contact (12) are in contact with each other, a return spring (13) is arranged on one side of the moving contact (11), and the other end of the return spring (13) is fixedly mounted on the inner wall of the housing (1), the other side surface of the moving contact (11) is in contact with a push plate (14), and the push plate (14) is fixedly mounted on the inner surface of the cover plate (7), the moving contact (11) and the fixed contact (12) constitute a movable switch structure, and the movable switch structure is provided in two groups.
6. A circuit breaker for replacing accessories without power outage according to claim 5, characterized in that: The two groups of movable switch structures are respectively arranged at the two ends of the circuit-breaking control mechanism composed of the control element (3); the movable switch structure forms an on-off structure with the control element (3) and the circuit; the movable switch structure and the circuit-breaking control mechanism are connected in parallel at the two ends of a branch circuit, and a resistor with the same resistance value as the circuit-breaking control mechanism is connected in series on the branch circuit; the circuit formed by the movable switch structure and the circuit-breaking control mechanism is connected in series with the branch circuit in the circuit of the upper wiring terminal (4) and the lower wiring terminal (5).