Electrical circuit breaker capable of preventing mistaken touch

By designing an anti-accidental contact mechanism on the circuit breaker, the problem of accidental contact with adjacent circuit breakers during maintenance, which leads to equipment power outage, is solved, thus achieving safe and reliable maintenance operations.

CN223927318UActive Publication Date: 2026-02-17GUOYUAN ELECTRIC CO LTD
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Patent Information

Application Number
CN202520201379.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-10
Publication Date
2026-02-17
Estimated Expiration
2035-02-10

AI Technical Summary

Technical Problem

The existing circuit breakers are installed tightly, and maintenance personnel may accidentally touch adjacent circuit breakers when disconnecting the circuit breaker of a faulty device, causing a sudden power outage and damage to the equipment.

Method used

An electrical circuit breaker designed to prevent accidental contact is equipped with an anti-accidental contact mechanism, including a sliding cover, a locking component, and a safety component. Through the cooperation of the slide rail and the locking tongue, the sliding cover can be controlled to slide and lock, thus preventing accidental contact.

Benefits of technology

It effectively prevents accidental contact with adjacent circuit breakers during maintenance, avoids sudden power outages, protects equipment safety, and ensures smooth maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an electrical anti-mistaken-touch circuit breaker, which relates to the technical field of circuit breakers and comprises a circuit breaker body and an anti-mistaken-touch mechanism, a slide rail is arranged on the side wall of the circuit breaker body, the anti-mistaken-touch mechanism comprises a slide cover and a locking assembly, the locking assembly comprises a locking rod and a first pressure spring, a spring bolt is arranged on the side wall of the locking rod, and the spring bolt is arranged on the side wall of the locking rod. A first locking opening is formed in the side wall of the sliding cover, and the spring bolt is inserted into the first locking opening to lock the sliding cover. According to the electrical mistaken touch prevention type circuit breaker provided by the utility model, the sliding cover covers the switch in a normal state to avoid mistaken touch during maintenance, the handheld round rod is pressed to push the lock rod to drive the spring bolt to be separated from the first lock opening during maintenance to unlock the sliding cover, and the lock rod is located on the inner side of the lock groove in the normal state to unlock the sliding cover when a maintainer needs to leave the circuit breaker body. The sliding cover is used for covering the switch, the sliding cover is locked through the spring bolt, then the handheld round block is pinched, the cross rod is pulled out with force outwards, other people cannot press the lock rod to unlock the sliding cover, and the situation that other people touch the switch by mistake is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, specifically to an electrical circuit breaker designed to prevent accidental contact. Background Technology

[0002] A circuit breaker is a switching device that can close, carry, and interrupt current under normal circuit conditions and can close, carry, and interrupt current under abnormal circuit conditions within a specified time.

[0003] Currently, precision electronics manufacturing plants install multiple circuit breakers to control the circuit switches of different operating consoles or testing instruments, depending on the production position and equipment. When equipment malfunctions, maintenance personnel need to disconnect the circuit breaker corresponding to the faulty equipment and repair the equipment without power.

[0004] However, most circuit breakers on the market are currently installed tightly, and when maintenance personnel disconnect a circuit breaker, they may accidentally touch an adjacent circuit breaker, causing the equipment corresponding to that circuit breaker to lose power. A sudden power outage may damage the equipment and cause unnecessary losses. Utility Model Content

[0005] The purpose of this utility model is to provide an electrical circuit breaker designed to prevent accidental contact, in order to solve the problem mentioned in the background art where accidental contact with adjacent circuit breakers during circuit breaker opening and closing can cause equipment damage.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides an electrical circuit breaker with anti-accidental contact capability, including a circuit breaker body and an anti-accidental contact mechanism mounted on the circuit breaker body. The side wall of the circuit breaker body is provided with vertically symmetrical slide rails. The anti-accidental contact mechanism includes a slide cover slidably mounted in the slide rail. The anti-accidental contact mechanism also includes a locking assembly. The locking assembly includes a locking rod and a first compression spring that drives the locking rod. The side wall of the locking rod is provided with a locking tongue. The side wall of the slide cover facing the circuit breaker body is provided with a first locking slot that matches the locking tongue. The locking tongue is driven to insert into the first locking slot to lock the slide cover.

[0008] Furthermore, a locking groove is provided on the side wall of the circuit breaker body, the locking rod is movably assembled in the locking groove, the first compression spring is fixedly assembled on the side wall of the section of the locking rod facing the circuit breaker body, a locking hole is provided on the side wall of the locking groove to communicate with the inside of the slide rail, and one end of the locking tongue extends to the inside of the slide rail through the locking hole.

[0009] Furthermore, the anti-accidental touch mechanism also includes a safety component, which includes a handheld circular block. The end of the handheld circular block facing the locking rod has a cross bar. The end of the locking rod facing the handheld circular block has a cross groove adapted to the cross bar. A locking component is provided in the cross groove. The locking component includes a pin and a second compression spring that drives the pin. A pin hole adapted to the pin is provided on the side wall of the cross bar. The pin is driven to insert into the pin hole to lock the cross bar.

[0010] Furthermore, a storage groove is provided on the side wall of the sliding cover.

[0011] Furthermore, the sliding cover is specifically made of a transparent acrylic sheet.

[0012] Furthermore, the outer wall of the handheld circular block is provided with anti-slip texture.

[0013] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0014] This utility model provides an electrical circuit breaker designed to prevent accidental contact. Normally, a sliding cover covers the switch. When maintenance personnel need to open the sliding cover, they press the hand-held rod to push the locking rod into the lock groove, causing the locking tongue to disengage from the first locking hole. At this time, the sliding cover unlocks, and maintenance personnel can slide the sliding cover upwards along the slide rail to expose the switch for maintenance. When maintenance personnel finish their work, they press the hand-held rod again to push the locking rod, causing the locking tongue to retract into the lock hole. The first pressure spring is compressed and stores energy, allowing the sliding cover to slide downwards along the slide rail to the bottom. Releasing the hand-held rod releases the first pressure spring, pushing the locking rod and thus engaging the locking mechanism. The tongue is inserted into the first locking slot to lock the sliding cover. Under normal circumstances, the locking rod is located inside the locking groove and does not extend out of the locking groove. When maintenance personnel need to leave the circuit breaker body to maintain the circuit, they can slide the sliding cover down along the slide rail to cover the switch. The sliding cover is locked by the locking tongue in conjunction with the first locking slot. Then, the hand-held round block is pinched and the cross rod is pulled outward with force, so that others cannot press the locking rod to unlock the sliding cover, thus preventing others from accidentally touching the switch. After maintenance is completed, the maintenance personnel insert the cross rod along the cross groove of the locking rod. When the pin is aligned with the pin hole on the cross rod, the second pressure spring pushes the pin into the cross rod to lock the cross rod. Attached Figure Description

[0015] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the structure of the circuit breaker body provided by this utility model;

[0018] Figure 2 A cross-sectional structural diagram of the circuit breaker body provided by this utility model;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 A schematic diagram of the anti-accidental touch mechanism provided by this utility model;

[0021] Figure 5 for Figure 4 Enlarged view of section B in the middle.

[0022] In the picture:

[0023] 100. Circuit breaker body;

[0024] 101. Slide rail; 102. Locking groove; 120. Locking groove;

[0025] 200. Anti-accidental touch mechanism; 210. Sliding cover; 211. Storage slot; 212. First locking jaw; 213. Second locking jaw; 220. Locking rod; 230. First compression spring; 240. Locking tongue;

[0026] 300, Safety component; 310, Handheld round block; 320, Cross bar; 321, Pin hole; 221, Cross groove; 330, Insert pin; 331, Second compression spring. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0028] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0029] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0030] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0031] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0032] Currently, circuit breakers on the market are often densely packed, making them prone to accidental activation during maintenance, which could cause adjacent circuit breakers to trip, resulting in power loss and damage to equipment and instruments. To avoid this, please refer to [the relevant documentation / reference]. Figures 1 to 5This utility model provides an electrical circuit breaker with anti-accidental contact capability, including a circuit breaker body 100 and an anti-accidental contact mechanism 200 mounted on the circuit breaker body 100. The side walls of the circuit breaker body 100 are symmetrically provided with vertically aligned slide rails 101, which are symmetrically located on both sides of the switch. The anti-accidental contact mechanism 200 includes a sliding cover 210 slidably mounted within the slide rails 101. When the sliding cover 210 slides downwards along the slide rails 101 to the end of the slide rails 101, it precisely engages the circuit breaker. The switch cover of the main body 100 serves to prevent dust and water damage. The anti-accidental touch mechanism 200 also includes a locking assembly, which includes a locking rod 220 and a first compression spring 230 that drives the locking rod 220. A locking tongue 240 is provided on the side wall of the locking rod 220. A first locking slot 212 adapted to the locking tongue 240 is opened on the side wall of the sliding cover 210 facing the circuit breaker main body 100. The locking tongue 240 is driven to insert into the first locking slot 212 to lock the sliding cover 210. A locking groove 10 is opened on the side wall of the circuit breaker main body 100. 2. The locking rod 220 is movably mounted in the locking groove 102. A first compression spring 230 is fixedly mounted on the side wall of the section of the locking rod 220 facing the circuit breaker body 100. A locking hole communicating with the inside of the slide rail 101 is opened on the side wall of the locking groove 102. One end of the locking tongue 240 extends to the inside of the slide rail 101 through the locking hole. This utility model uses the sliding cover 210 to cover the switch, avoiding the equipment and instruments from being powered off by the maintenance personnel accidentally touching the non-maintenance switch during the maintenance process. When the maintenance personnel need to open the sliding cover 210, they can do so by pressing the locking rod 220. 20. The locking tongue 240 is disengaged from the first locking port 212. At this time, the sliding cover 210 is unlocked. The maintenance personnel can slide the sliding cover 210 upward along the slide rail 101 to expose the switch. When the maintenance personnel finish their work, they press the locking rod 220 again to retract the locking tongue 240 into the lock hole. At this time, the sliding cover 210 is slid downward along the slide rail 101 to the bottom of the slide rail 101. Then the locking rod 220 is released, and the first compression spring 230 is released to push the locking rod 220, thereby driving the locking tongue 240 to insert into the first locking port 212 to lock the sliding cover 210.

[0033] Preferred, such as Figure 3 As shown, a second locking port 213 is also provided on the side wall of the sliding cover 210 below the first locking port 212. When maintenance personnel are adjusting the circuit breaker body 100, they can slide the sliding cover 210 upward along the slide rail 101. When the second locking port 213 is aligned with the lock hole, the locking rod 220 is released so that the locking tongue 240 is inserted into the second locking port 213, thereby locking the sliding cover 210 to the upper half of the slide rail 101, keeping the switch of the circuit breaker body 100 exposed, which is convenient for maintenance personnel to adjust.

[0034] Preferred, such as Figures 3 to 5As shown, to prevent accidental contact and electric shock during circuit maintenance by personnel, the anti-accidental contact mechanism 200 of this invention also includes a safety component 300. The safety component 300 includes a handheld round block 310. A cross bar 320 is provided at the end of the handheld round block 310 facing the locking rod 220. A cross groove 221, adapted to the cross bar 320, is opened at the end of the locking rod 220 facing the handheld round block 310. A locking component is provided within the cross groove 221. The locking component includes a pin 330 and a second compression spring 331 that drives the pin 330. A pin hole 321, adapted to the pin 330, is opened on the side wall of the cross bar 320. The pin 330 is driven into the pin hole 321 to lock the cross bar 320. The locking rod 220 of this invention extends to the locking groove 10. 2. The circuit breaker body 100 is connected to the outside but does not extend into the locking groove 102. Therefore, maintenance personnel need to use the hand-held round block 310 and cross bar 320 to drive the locking bar 220 to move and unlock the sliding cover 210. When maintenance personnel need to leave the circuit breaker body 100 to maintain the circuit, they can slide the sliding cover 210 down along the slide rail 101 to cover the switch. Then, they can pinch the hand-held round block 310 and pull the cross bar 320 outward to prevent others from pressing the locking bar 220 to unlock the sliding cover 210, thus avoiding accidental touch of the switch by others. After maintenance is completed, the maintenance personnel can insert the cross bar 320 along the cross groove 221 of the locking bar 220. When the pin 330 is aligned with the pin hole 321 on the cross bar 320, the second pressure spring 331 pushes the pin 330 into the cross bar 320 to lock the cross bar 320.

[0035] Preferably, as shown in the figure, a storage slot 211 is provided on the side wall of the sliding cover 210, which makes it convenient for customers to insert labels of electronic devices or circuits into the storage slot 211 as identification.

[0036] Preferably, the sliding cover 210 is made of transparent acrylic sheet, and maintenance personnel can observe the closed state of the internal switch through the transparent sliding cover 210.

[0037] Preferably, the outer wall of the handheld round block 310 is provided with anti-slip texture, which makes it easy for maintenance personnel to grip the handheld round block 310.

[0038] Working principle: When maintenance personnel need to open the sliding cover 210, they press the hand-held rod to push the locking rod 220 into the lock groove 102, causing the locking tongue 240 to disengage from the first lock opening 212. At this time, the sliding cover 210 is unlocked, and maintenance personnel can slide the sliding cover 210 upwards along the slide rail 101 to expose the switch for maintenance operations. When the maintenance personnel finish their work, they press the hand-held rod again to push the locking rod 220, causing the locking tongue 240 to retract into the lock hole. The first compression spring 230 is compressed and stored, and the sliding cover 210 is slid downwards along the slide rail 101 to the bottom of the slide rail 101. Then, the hand-held rod is released, and the first compression spring 230 is released to push the locking rod 220, thereby causing the locking tongue 240 to insert into the first lock opening 212. Lock the sliding cover 210. When maintenance personnel need to leave the circuit breaker body 100 to maintain the circuit, they can slide the sliding cover 210 down along the slide rail 101 to cover the switch. The sliding cover 210 is locked by the locking tongue 240 and the first locking port 212. Then, they can pinch the hand block 310 and pull the cross bar 320 outward to prevent others from pressing the locking bar 220 to unlock the sliding cover 210, thus preventing others from accidentally touching the switch. After maintenance is completed, the maintenance personnel can insert the cross bar 320 along the cross groove 221 of the locking bar 220. When the pin 330 is aligned with the pin hole 321 on the cross bar 320, the second pressure spring 331 pushes the pin 330 into the cross bar 320 to lock the cross bar 320.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. 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. An inadvertent contact prevention circuit breaker for electrical use comprising a circuit breaker body (100), characterized by: The anti-misoperation mechanism (200) is assembled on the circuit breaker body (100), a slide rail (101) is vertically and symmetrically formed on the side wall of the circuit breaker body (100), the anti-misoperation mechanism (200) comprises a slide cover (210) which is slidably assembled in the slide rail (101), and the anti-misoperation mechanism (200) further comprises a locking assembly, the locking assembly comprises a locking rod (220) and a first compression spring (230) for driving the locking rod (220), a locking tongue (240) is arranged on the side wall of the locking rod (220), a first locking opening (212) which is adapted to the locking tongue (240) is formed on the side wall of the slide cover (210) which faces the circuit breaker body (100), and the locking tongue (240) is driven to be inserted into the first locking opening (212) to lock the slide cover (210).

2. The mistake prevention circuit breaker for electrical use according to claim 1, characterized in that: A locking groove (102) is formed on the side wall of the circuit breaker body (100), the locking rod (220) is movably assembled in the locking groove (102), the first compression spring (230) is fixedly assembled on the side wall of the locking rod (220) which faces the circuit breaker body (100), and a locking hole which is communicated to the inner side of the slide rail (101) is formed on the side wall of the locking groove (102), one end of the locking tongue (240) extends to the inner side of the slide rail (101) through the locking hole.

3. The mistake prevention circuit breaker for electrical use according to claim 1, characterized in that: The anti-misoperation mechanism (200) further comprises a safety assembly (300), the safety assembly (300) comprises a hand-held round block (310), a cross rod (320) is arranged on one end of the hand-held round block (310) which faces the locking rod (220), a cross groove (221) which is adapted to the cross rod (320) is formed on one end of the locking rod (220) which faces the hand-held round block (310), a locking assembly is arranged in the cross groove (221), the locking assembly comprises a latch (330) and a second compression spring (331) for driving the latch (330), a pin hole (321) which is adapted to the latch (330) is formed on the side wall of the cross rod (320), and the latch (330) is driven to be inserted into the pin hole (321) to lock the cross rod (320).

4. The mistake prevention circuit breaker for electrical use according to claim 1, characterized in that: A storage groove (211) is formed on the side wall of the slide cover (210).

5. The mistake prevention circuit breaker for electrical use according to claim 1, characterized in that: The slide cover (210) is made of transparent acrylic plate.

6. The mistake prevention circuit breaker for electrical use according to claim 3, characterized in that: Anti-slip lines are arranged on the outer wall of the hand-held round block (310).