Circuit breaker reclosing device
By introducing a position switch into the circuit breaker reclosing device, three position states—automatic, manual, and locked—are achieved, solving the problems of complex structure and insufficient safety in existing technologies, and providing a safe and reliable operating experience while reducing costs.
Patent Information
- Application Number
- CN202520268658.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-02-20
AI Technical Summary
The existing circuit breaker reclosing device has separate remote and local operation switches and padlock accessories, resulting in complex structure, high cost and safety hazards, which cannot meet the safety requirements of smart grids.
It adopts a position switch design to realize three position states: automatic, manual and locked. It integrates remote and local operation selection buttons and padlock function into a single part, simplifying the structure and improving security.
It achieves circuit breaker reclosing operation that is simple in structure, convenient in operation, and safe and reliable, thereby improving product safety and user experience and reducing costs.
Smart Images
Figure CN223651340U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit breaker technology, and in particular to a circuit breaker reclosing device. Background Technology
[0002] Currently, miniature circuit breakers (MCBs) are widely used in low-voltage power distribution networks, primarily in various locations such as industrial, commercial, high-rise, and residential buildings. They provide overcurrent and leakage protection for electrical equipment such as motors, power lines, and lighting circuits. Traditionally, the opening and closing operations of miniature circuit breakers require manual operation. With the development of my country's smart grid, the need for intelligent control of electrical appliances is becoming increasingly urgent while ensuring the safe operation of the grid. To address these new demands, existing miniature circuit breakers should incorporate automatic reclosing functionality. The automatic reclosing device for circuit breakers is an accessory used for remotely electrically opening and closing circuit breakers.
[0003] Currently, reclosing accessories require functional settings to ensure remote control of the circuit breaker for closing and opening operations during normal use. During maintenance and line repair, a manual mode can be set to disable the remote mode, preventing safety accidents caused by remote control closing and improving the safety of maintenance personnel. In necessary situations, a padlock attachment is also needed to prevent accidental local closing of the circuit breaker. Therefore, reclosing accessories should have remote and local operation selection buttons and padlock structures to improve product safety and prevent safety accidents caused by abnormal closing, thus improving customer efficiency. However, existing reclosing devices have separate designs for remote and local operation switches and padlock attachments, which increases structural complexity, adds parts, increases the cost of reclosing accessories, and leads to material waste.
[0004] Therefore, this utility model needs to provide a product that is simple in structure, easy to operate, and improves product safety, bringing customers a safer and more reliable user experience. Utility Model Content
[0005] The purpose of this invention is to provide a circuit breaker reclosing device to solve the aforementioned problems in the prior art.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] A circuit breaker reclosing device includes: a base, a middle base, and a top cover, wherein the middle base is located between the base and the top cover. It also includes a position switch, which is slidably mounted between the middle base and the top cover. A shaft is provided on the middle base, passing through the interior of the position switch. The position switch and the shaft work together to achieve automatic position, handle position, locking position, and padlock functions.
[0008] Furthermore, the position switch includes an upper part and a lower part, which are connected by a connecting rod. The upper part extends to the outside of the middle seat and the upper cover. The lower part is a hollow frame structure and is located in the receiving cavity formed by the middle seat and the upper cover. Multiple sliding positions are provided on the lower frame of the frame structure near the axis, and a limiting member is also provided on the upper frame of the frame structure.
[0009] Furthermore, the sliding positions, from left to right, include a first position, a second position, and a third position, where the first position is an automatic position, the second position is a manual position, and the third position is a locked position.
[0010] Furthermore, the first, second, and third positions are all groove structures.
[0011] Furthermore, an elastic structure is provided near the third position, and the elastic structure is connected in parallel with the third position.
[0012] Furthermore, the elastic structure is V-shaped.
[0013] Furthermore, the upper part is a ring structure, which allows the position switch to slide back and forth along the S direction.
[0014] Furthermore, the upper part is also provided with a protruding structure at its upper end.
[0015] Furthermore, the base is also provided with a fixing ring. When the upper ring structure coincides with the fixing ring, the position switch is fixed by a mechanical lock.
[0016] Furthermore, it also includes a micro switch, which is in contact with or separate from the limiting element. Through the contact between the micro switch and the limiting element, the micro switch outputs a signal, and the circuit breaker reclosing device performs local closing and opening operations or remote closing and opening operations according to the output signal.
[0017] The beneficial effects of this utility model are:
[0018] Because of the position switch, three position states can be achieved: automatic position, manual position, and locked position. One component performs three functions, which is simple in structure, comprehensive in function, improves product safety, simplifies operation, enhances customer convenience, improves circuit safety, and brings customers a safer and more reliable user experience. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the reclosing device for the circuit breaker of this utility model;
[0020] Figure 2 This is an internal structural diagram of the circuit breaker reclosing device of this utility model;
[0021] Figure 3 This is a schematic diagram of the position switch of this utility model;
[0022] Figure 4 This is an internal structural diagram of the circuit breaker reclosing device of this utility model;
[0023] Figure 5 This is a schematic diagram of the automatic positioning described in this invention;
[0024] Figure 6 This is a schematic diagram of the manual position as described in this invention;
[0025] Figure 7 This is a schematic diagram of the locking position described in this invention.
[0026] Figure label:
[0027] 1. Base; 2. Middle base; 3. Top cover; 4. Position switch; 5. Shaft; 6. Fixing ring; 7. Handle; 8. Micro switch;
[0028] Upper part 41, lower part 42, connecting rod 43, limiting component 44;
[0029] Protruding structure 411;
[0030] First position 421, second position 422, third position 423, elastic structure 424. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.
[0032] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0034] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.
[0035] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.
[0036] like Figures 1 to 7 As shown, a circuit breaker reclosing device includes: a base 1, a middle base 2, and a top cover 3. The middle base 2 is located between the base 1 and the top cover 3. It also includes a position switch 4, which is slidably installed between the middle base 2 and the top cover 3. The middle base 2 is provided with a shaft 5, which passes through the interior of the position switch 4. The automatic position, handle position, locking position, and padlock functions are realized through the cooperation between the position switch 4 and the shaft 5. In this embodiment, the position switch 4 is made of elastic plastic, thereby improving the service life of the position switch.
[0037] As can be seen from the above, this utility model, by setting up a position switch 4, can realize three position states, namely automatic position, manual position and locked position. One part realizes three functions, with simple structure and comprehensive functions, which improves product safety, simplifies operation, improves customer convenience, improves circuit safety, and brings customers a safer and more reliable user experience.
[0038] Specifically, the position switch 4 includes an upper part 41 and a lower part 42, which are connected by a connecting rod 43. The upper part 41, the connecting rod 43, and the lower part 42 are connected by an integral molding process, which ensures that the upper part 41, the connecting rod 43, and the lower part 42 can be tightly connected to each other and will not separate or deform due to external force. During installation, the upper part 41 extends to the outside of the middle seat 2 and the upper cover 3. Since the upper part 41 is set outside the middle seat 2 and the upper cover 3, the upper part 41 can be pushed to drive the lower part 42 to slide back and forth in the S direction. In this embodiment, the lower part 42 is a hollow frame structure and is located in the receiving cavity formed by the middle seat 2 and the upper cover 3. Multiple sliding positions are provided on the lower frame near the shaft of the frame structure. A limiting member 44 is also provided on the upper frame of the frame structure. The limiting member 44 can restrict the shaft 5 from moving in the S direction and ensure the stability of the structure.
[0039] To achieve three position states, in this embodiment, the sliding positions from left to right include a first position 421, a second position 422, and a third position 423. The first position 421 is an automatic position, the second position 422 is a manual position, and the third position 423 is a locked position. The first position 421, the second position 422, and the third position 423 are groove structures.
[0040] In addition, it should be noted that an elastic structure 424 is provided near the third position 423. The elastic structure 424 is connected in parallel with the third position 423. The elastic structure 424 is V-shaped. The elastic structure 424 is connected to the groove structure by integral molding to avoid deformation due to external force.
[0041] Additionally, it should be noted that the upper part 41 is a ring structure, which allows the position switch to slide back and forth along the S direction. The upper end of the upper part 41 is also provided with a protruding structure 411, which can increase the friction force of pushing the position switch and facilitate operation.
[0042] In order to realize the padlock function, in this embodiment, a fixing ring 6 is also provided on the base 1. When the upper ring structure coincides with the fixing ring, the position switch is fixed by the mechanical lock, thereby ensuring that the position switch is fixed in the locked position and the position switch cannot be moved. If you want to move the position switch, you must remove the mechanical lock, which prevents the position switch from being pushed by people and improves the safety function.
[0043] In order to control the circuit breaker reclosing device to reclose locally or remotely, a micro switch 8 is also included. The micro switch 8 is in contact with or separates from the limit member 44. When the micro switch is in contact with the limit member, the micro switch outputs a signal, and the circuit breaker reclosing device performs local closing and opening operations or remote closing and opening operations according to the output signal.
[0044] During assembly, handle 7 is installed on the corresponding holes of the middle seat 2 and the upper cover 3. Handle 7 can rotate freely. When the position switch is slid to the automatic position, handle 7 can rotate freely without being affected. When the position switch 4 is in the manual position, handle 4 is restricted to the open position and cannot be rotated. When the position switch 4 is in the locked position, handle 7 is restricted to the open position and cannot be rotated. When in the locked position, a mechanical lock can also be attached to the fixing ring on the position switch to achieve the function of preventing the position switch from being moved to other positions.
[0045] The automatic position function is described as follows: When the shaft 5 is in the automatic position on the position switch 4, the position switch 4 can remain stationary when subjected to a small force, and remain in the automatic position. When the position switch 4 is in the automatic position, the position switch 4 is not in contact with the micro switch, the micro switch 4 has no signal output, and the circuit breaker reclosing device can perform local and remote closing and opening control.
[0046] The manual position function is described as follows: When a certain force is applied to the position switch 4 to overcome the elastic reaction force of the position switch itself, the elastic structure of the position switch 4 deforms, and the shaft 5 moves from the first position 421 of the position switch to the second position 422. When the position switch 4 is subjected to a small force, it can remain in the manual position. When the position switch is in the manual position, the position switch on the position switch is in contact with the micro-break switch 8, and the micro-break switch 8 has a signal output. The circuit breaker reclosing device can only perform local closing and opening operations, and the remote closing and opening function is disabled.
[0047] The locking position function is described as follows: When a certain force is applied to the position switch 4 to overcome the elastic reaction force of the position switch itself, the elastic structure 424 of the position switch 4 deforms, and the shaft 5 moves from the second position 421 of the position switch 4 to the third position 423. When the position switch 4 is subjected to a small force, it can remain in the locked position. When the position switch 4 is in the manual position, the position switch 4 is in contact with the micro-break switch 8, and the micro-break switch 8 has a signal output. The handle 7 is installed on the position switch 4, and the rotation function of the handle 7 is blocked by the position switch, so it cannot be rotated. The circuit breaker reclosing device cannot perform local closing and opening operations, and the local closing and opening function fails.
[0048] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A circuit breaker reclosing device, comprising: The system comprises a base, a middle seat, and a top cover, wherein the middle seat is located between the base and the top cover. It is characterized by further including a position switch, which is slidably mounted between the middle seat and the top cover. The middle seat has a shaft that passes through the interior of the position switch. The position switch, in conjunction with the shaft, enables automatic positioning, handle positioning, locking positioning, and padlock functions.
2. The circuit breaker reclosing device according to claim 1, characterized in that: The position switch includes an upper part and a lower part, which are connected by a connecting rod. The upper part extends to the outside of the middle seat and the upper cover. The lower part is a hollow frame structure and is located in the receiving cavity formed by the middle seat and the upper cover. Multiple sliding positions are provided on the lower frame of the frame structure near the axis, and a limiting member is also provided on the upper frame of the frame structure.
3. The circuit breaker reclosing device according to claim 2, characterized in that: The sliding positions, from left to right, include a first position, a second position, and a third position. The first position is an automatic position, the second position is a manual position, and the third position is a locked position.
4. The circuit breaker reclosing device according to claim 3, characterized in that: The first, second, and third positions are all groove structures.
5. The circuit breaker reclosing device according to claim 3, characterized in that: An elastic structure is also provided near the third position, and the elastic structure is connected in parallel with the third position.
6. The circuit breaker reclosing device according to claim 5, characterized in that: The elastic structure is V-shaped.
7. The circuit breaker reclosing device according to claim 2, characterized in that: The upper part is a ring structure, through which the position switch can slide back and forth along the S direction.
8. The circuit breaker reclosing device according to claim 7, characterized in that: The upper part is also provided with a protruding structure at its upper end.
9. The circuit breaker reclosing device according to claim 1, characterized in that, The base is also provided with a fixing ring. When the upper ring structure coincides with the fixing ring, the position switch is fixed by a mechanical lock.
10. The circuit breaker reclosing device according to claim 2, characterized in that, It also includes a micro switch, which is in contact with or separate from the limit element. When the micro switch is in contact with the limit element, the micro switch outputs a signal, and the circuit breaker reclosing device performs local closing and opening operations or remote closing and opening operations based on the output signal.