Intelligent foolproof circuit breaker

Abstract

The utility model discloses an intelligence prevents stupid circuit breaker, including mutual splicing left casing and right casing, so left casing top rotatoryly established handle, left casing inside is equipped with static contact, left casing top one side rotatoryly established contact seat, contact seat bottom inlayed with movable contact, contact seat top is equipped with opening and closing gate instruction board, contact seat top rotatoryly established reset piece, handle one side is equipped with pull rod, pull rod other end with reset piece top connection, the utility model discloses being equipped with opening and closing gate instruction board, can directly confirm circuit breaker state in operating point to the actual position of circuit breaker contact that can be intuitive, reliable display, operating personnel need not rely on unreliable auxiliary contact point signal or conjecture, can, and through being equipped with gate block, when not using wiring, through the gate block to the incoming line mouth is shielded, effectively prevent external object and dust into the wiring cavity to cause the influence of wiring block, can reduce failure rate and maintenance demand, improve overall reliability.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, specifically to an intelligent foolproof circuit breaker. Background Technology

[0002] A circuit breaker is an automatic protective electrical device whose core function is to detect abnormal currents (such as short circuits or overloads) in a circuit and automatically disconnect the power supply, thereby protecting the circuit, electrical equipment, and personal safety. It is an indispensable safety device in modern power systems, distribution networks, industrial equipment, and household electricity use.

[0003] Existing miniature circuit breakers typically lack a structure that directly displays the opening and closing status, making it impossible for operators to directly and reliably confirm the actual position of the circuit breaker contacts at the operating point. Operators may mistakenly believe that the circuit is de-energized when it is actually still energized or closed when it is actually not connected, which can easily lead to fatal accidents such as electric shock or arcing. Furthermore, when existing circuit breakers are not in use, the inlet port is usually exposed, making it easy for external objects or dust to come into contact with the wiring blocks inside the inlet port, causing problems.

[0004] Therefore, the applicant has made beneficial designs and found a way to solve the above problems. The technical solution to be introduced below is generated in this context. Utility Model Content

[0005] The present invention provides an intelligent foolproof circuit breaker to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An intelligent foolproof circuit breaker includes a left housing and a right housing connected to each other. A handle is rotatably mounted on the top of the left housing. A stationary contact is located inside the left housing. A contact seat is rotatably mounted on one side of the top of the left housing, with a torsion spring on the contact seat. A moving contact is embedded at the bottom of the contact seat. An opening / closing indicator plate is located on the top of the contact seat. A reset component is rotatably mounted on the contact seat. A pull rod is located on one side of the handle, with the other end connected to the top of the reset component. A fixing part is located on the top of the reset component, with a spring embedded within it. A positioning post is located on one side of the bottom of the contact seat, with the bottom end of the spring sleeved on the positioning post. An indicator hole is provided on the top wall of the right housing to mate with the opening / closing indicator plate. Wiring cavities are located on both sides of the left housing. A wire inlet is provided on the outer wall of each wiring cavity. A guide groove is provided on the inner wall of the wiring cavity. A gate block slides inside the guide groove. A serpentine spring is located on the top of the gate block, with the top end of the serpentine spring abutting against the top wall of the wiring cavity.

[0008] Preferably, the bottom of the gate block near the inlet has a slope.

[0009] Preferably, each of the wiring cavities is provided with a wiring block.

[0010] Preferably, the circuit breaker indicator is arc-shaped, and the top two sides of the circuit breaker indicator are respectively provided with a circuit breaker closing indicator and a circuit breaker opening indicator.

[0011] Preferably, both the stationary contact and the moving contact are single-contact structures.

[0012] Beneficial effects

[0013] The intelligent foolproof circuit breaker provided in this embodiment of the utility model has at least one of the following technical effects:

[0014] This utility model, through the above-mentioned technical solution, by providing an opening and closing indicator plate, can intuitively and reliably display the actual position of the circuit breaker contacts. Operators can directly confirm the circuit breaker status at the operation point without relying on unreliable auxiliary contact signals or guesswork. Furthermore, by providing a gate block, when the wiring is not in use, the gate block can block the inlet, effectively preventing external objects and dust from entering the wiring cavity and affecting the wiring block, thereby reducing the failure rate and maintenance requirements, and improving overall reliability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal structure of the left shell of this utility model;

[0016] Figure 2 This is a schematic diagram of the right shell structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the operating mechanism of this utility model.

[0018] The correspondence between the labels and component names in the attached figures is as follows:

[0019] 1. Left housing; 2. Right housing; 3. Handle; 4. Stationary contact; 5. Contact seat; 6. Torsion spring; 7. Moving contact; 8. Opening / closing indicator plate; 9. Reset component; 10. Pull rod; 11. Fixing part; 12. Spring; 13. Positioning pin; 14. Indicator hole; 15. Wiring cavity; 16. Inlet port; 17. Guide groove; 18. Gate block; 19. Snake spring; 20. Wiring block. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., 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 and 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.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] To avoid excessive and unnecessary details, well-known structures or functions will not be described in detail in the following embodiments.

[0024] like Figure 1-3 The diagram shown is a structural schematic of an intelligent foolproof circuit breaker according to a preferred embodiment of the present invention.

[0025] In this embodiment, the device includes a left housing 1 and a right housing 2 that are spliced ​​together. A handle 3 is rotatably mounted on the top of the left housing 1. A stationary contact 4 is located inside the left housing 1. A contact seat 5 is rotatably mounted on one side of the top of the left housing 1. A torsion spring 6 is mounted on the contact seat 5 to drive the contact seat 5 to complete its reset. A moving contact 7 is embedded at the bottom of the contact seat 5. An opening / closing indicator plate 8 is located on the top of the contact seat 5. A reset component 9 is rotatably mounted on the contact seat 5. A pull rod 10 is located on one side of the handle 3. The other end of the pull rod 10 is connected to the top of the reset member 9. By turning the handle 3, the pull rod 10 is driven, which in turn drives the reset member 9. The reset member 9 drives the contact seat 5 to rotate, causing the opening / closing indicator plate 8 to rotate, thereby switching between the opening and closing states. The top of the reset member 9 is provided with a fixing part 11, in which a spring 12 is embedded. A positioning post 13 is provided on one side of the bottom of the contact seat 5. The bottom end of the spring 12 is sleeved on the positioning post 13, which is used to fix the bottom end of the spring 12. For positioning, the top wall of the right housing 2 has an indicator hole 14 that aligns with the opening / closing indicator plate 8. The indicator hole 14 exposes the opening / closing indicator plate 8 to display the opening or closing status. Both sides of the left housing 1 have wiring cavities 15 for connecting external wires. The outer walls of each wiring cavity 15 have inlet ports 16 for wires to enter. The inner walls of each wiring cavity 15 have guide grooves 17, and a gate block 18 slides within the guide grooves 17. 7 is used to guide the gate block 188. The top of the gate block 188 is provided with a serpentine spring 19. The top of the serpentine spring 19 abuts against the top wall of the wiring cavity 15. The serpentine spring 19 provides a downward elastic thrust to the gate block 18. When the circuit breaker is not in use, the serpentine spring 19 pushes the gate block 18 downward to block the inlet 16, preventing external objects and dust from entering the wiring cavity 15 and contacting the wiring block 20, thereby avoiding any impact on the wiring block 20.

[0026] In this embodiment, the bottom of the gate block 18 near the inlet 16 is provided with an inclined surface. When the wire is inserted into the inlet 16 and contacts the inclined surface, and then the wire is pushed, the gate block 18 moves to the top of the guide groove 17 under the action of the inclined surface, so that the wire can enter the wiring cavity 15.

[0027] In this embodiment, each wiring cavity 15 is provided with a wiring block 20, which is used to connect external wires.

[0028] In this embodiment, the circuit breaker indicator 8 has an arc-shaped structure. The top two sides of the circuit breaker indicator 8 are respectively provided with a closing indicator and a closing indicator. The closing indicator and the closing indicator are different colors to facilitate the distinction between the closing and opening states. When the circuit breaker indicator 8 rotates, the closing indicator and the opening indicator switch at the indicator hole 14.

[0029] In this embodiment, both the stationary contact 4 and the moving contact 7 are single-contact structures, which result in higher stability.

[0030] The present invention relates to an intelligent foolproof circuit breaker, the installation method, connection method or setting method of which are all common mechanical methods, and any method that can achieve its beneficial effect can be implemented.

[0031] All technologies not described in detail in this utility model are known technologies. Those skilled in the art can easily implement this utility model based on their understanding of this specification, and the contents shown in the accompanying drawings are part of this specification.

[0032] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. An intelligent foolproof circuit breaker, comprising a left housing (1) and a right housing (2) joined together, characterized in that: A handle (3) is rotatably provided on the top of the left housing (1). A stationary contact (4) is provided inside the left housing (1). A contact seat (5) is rotatably provided on one side of the top of the left housing (1). A torsion spring (6) is provided on the contact seat (5). A moving contact (7) is embedded at the bottom of the contact seat (5). An opening / closing indicator plate (8) is provided on the top of the contact seat (5). A reset member (9) is rotatably provided on the contact seat (5). A pull rod (10) is provided on one side of the handle (3). The other end of the pull rod (10) is connected to the top of the reset member (9). A fixing part (11) is provided on the top of the reset member (9). A spring is embedded in the fixing part (11). Spring (12), the bottom side of the contact seat (5) is provided with a positioning post (13), the bottom end of the spring (12) is sleeved on the positioning post (13), the top wall of the right housing (2) is provided with an indicator hole (14) in conjunction with the opening and closing indicator plate (8), the left housing (1) is provided with wiring cavities (15) on both sides, the outer wall of the wiring cavity (15) is provided with a wire inlet (16), the inner wall of the wiring cavity (15) is provided with a guide groove (17), the gate block (18) is slidably provided inside the guide groove (17), the top of the gate block (18) is provided with a serpentine spring (19), the top of the serpentine spring (19) abuts against the top wall of the wiring cavity (15).

2. The intelligent foolproof circuit breaker according to claim 1, characterized in that: The gate block (18) has a sloping surface at the bottom of the side near the inlet (16).

3. The intelligent foolproof circuit breaker according to claim 1, characterized in that: Each wiring cavity (15) is equipped with a wiring block (20).

4. The intelligent foolproof circuit breaker according to claim 1, characterized in that: The opening and closing indicator plate (8) has an arc-shaped structure, and the top two sides of the opening and closing indicator plate (8) are respectively provided with closing and opening indicators.

5. The intelligent foolproof circuit breaker according to claim 1, characterized in that: Both the stationary contact (4) and the moving contact (7) are single-contact structures.

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