A mistaken touch prevention molded case circuit breaker

Abstract

The utility model discloses a kind of mis-touching-preventing moulded case circuit breaker, including circuit breaker main body, touch switch and detachable mis-touching-preventing protection component, protection component covers touch switch operating area completely, prevent accidental touch or unauthorized operation, adopt polycarbonate transparent cover structure, with high light transmittance and impact resistance, the "ON / OFF" state identification of linkage can be clearly identified through observation window, be equipped with mounting sliding block and slide rail guide structure, cooperate buckle to realize quick sliding and dismounting, arc-shaped limiting rib is equipped in inside, adhere to touch switch profile, prevent forcibly wrench, wiring end is located above and below protection component, without affecting cable connection. The device structure is compact, safe and reliable, with mis-touching-preventing, state visible, installation convenient and the like, suitable for various power distribution environment, effectively improve operating safety and maintenance efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of low-voltage electrical equipment technology, specifically relating to a molded case circuit breaker for power distribution systems, and more particularly to a molded case circuit breaker with physical protection against accidental contact. It is suitable for industrial control cabinets, distribution boxes, building electrical systems and other occasions with high requirements for operational safety, and focuses on solving the safety hazards of circuit breaker misoperation or accidental collision caused by unauthorized personnel. Background Technology

[0002] The operating handles (touch switches) of existing molded case circuit breakers are usually exposed without any shielding structure. In densely populated areas or places where children can easily access them, there is a risk of accidental contact or operation, leading to power outages or equipment damage. Traditional circuit breakers only indicate the on / off status through the position of the handle. When an external protective cover is installed, it often obstructs the view, making it impossible to intuitively judge the current operating status, which affects the efficiency and safety of operation and maintenance. Although some products are equipped with protective covers, they are mostly fixed or screw-connected, which is cumbersome to disassemble and install, and is not conducive to daily maintenance and emergency operation, resulting in poor practicality.

[0003] Therefore, it is necessary to design a molded case circuit breaker that prevents accidental activation to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide a molded case circuit breaker that prevents accidental activation, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides a molded case circuit breaker with anti-accidental operation, including a circuit breaker body, a trigger switch, and an anti-accidental operation protection component. The circuit breaker body is used to carry out circuit control functions; the trigger switch is located on the front of the circuit breaker body and is used to realize opening and closing operations; the anti-accidental operation protection component is covered outside the trigger switch and is detachably connected to the circuit breaker body. When closed, it completely covers the operating area of ​​the trigger switch, preventing direct external contact and effectively preventing misoperation caused by unauthorized personnel or accidental collisions.

[0006] Furthermore, the anti-accidental touch protection component is an anti-accidental touch transparent cover made of polycarbonate material, which has high light transmittance and good impact resistance, and can maintain visibility of the operation status while providing physical protection.

[0007] Furthermore, the anti-accidental touch protection component has an observation window on the front, and an indicator mark that is linked to the touch switch, including the words "ON" and "OFF", which displays the current open / closed status synchronously with the action of the touch switch, making it easy for maintenance personnel to identify from a distance.

[0008] Furthermore, the anti-accidental touch protection component is provided with an installation slider on the rear side, and the circuit breaker body is provided with an installation slide rail that cooperates with the installation slider. Through the guiding cooperation between the slider and the slide rail, the anti-accidental touch protection component can be smoothly slid in and installed, improving assembly accuracy and convenience.

[0009] Furthermore, the mounting slider is made of rigid plastic and is fixed to the side of the circuit breaker body. Its top is provided with a buckle protrusion that cooperates with the slot on the anti-accidental contact protection component to achieve quick locking and disassembly. The installation and removal of the protection component can be completed without the use of tools.

[0010] Furthermore, the inner side of the anti-accidental touch protection component is provided with an arc-shaped limiting rib. When the protection component is closed, the arc-shaped limiting rib fits against the contour of the touch switch to form a physical limit, effectively restricting it from being forcibly activated in an unauthorized state and enhancing the reliability of the protection.

[0011] Furthermore, the circuit breaker body has a wiring terminal on the front side, which is located above or below the anti-accidental contact protection component to ensure that the external cable is not blocked by the protection component when connected, thus ensuring normal wiring and maintenance operations.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This utility model, through the design of a molded case circuit breaker with anti-accidental contact feature, achieves the following effects: 1. By incorporating a detachable anti-accidental contact protection component, the operating area of ​​the touch switch is completely covered, preventing direct external contact when closed, significantly reducing the risk of misoperation caused by unauthorized personnel or accidental collisions; 2. The anti-accidental contact protection component is made of high-transmittance polycarbonate material and features an observation window with "ON / OFF" markings, allowing clear identification of the circuit breaker's current open / closed state without opening the protective cover, balancing safety and ease of maintenance; 3. The guide structure, employing a sliding block and mounting rail, allows the protection component to slide smoothly into place along the circuit breaker body, with quick locking via a snap-fit ​​mechanism, enabling tool-free installation and removal. 4. The inner side of the protective component is equipped with an arc-shaped limiting rib, which fits the contour of the touch switch after closing, forming a physical barrier and effectively limiting its forced activation in an unauthorized state, thereby improving the overall protection level; 5. The wiring terminals are located above or below the anti-accidental touch protection component to ensure that the external cable connection space is not obstructed, facilitating on-site wiring and subsequent maintenance without affecting the original operating procedures; 6. The overall design adopts a combination of engineering plastics and metal slide rails, which has good impact resistance, aging resistance and long-term use stability, and is suitable for frequent operation scenarios in industrial environments; 7. The anti-accidental touch protection component is an independent module that can be adapted and developed according to different circuit breaker models, with good versatility and expansion potential, facilitating mass production and widespread application. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the circuit breaker body and the anti-accidental contact protection component after separation. Figure 2 This utility model Figure 1 Front view structural diagram; Figure 3 This utility model Figure 2 A schematic diagram of the side view structure; Figure 4 This is a three-dimensional structural diagram of the anti-accidental touch protection component of this utility model.

[0014] In the diagram: 1. Circuit breaker body; 2. Actuating switch; 3. Accidental contact protection component; 31. Accidental contact protection transparent cover; 32. Observation window; 4. Mounting slider; 5. Mounting slide rail; 6. Wiring terminal. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0016] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are provided. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete. Example

[0017] Please see Figure 1 as well as Figure 3 This utility model provides a molded case circuit breaker with anti-accidental contact feature, comprising a circuit breaker body 1, an actuated switch 2, and an anti-accidental contact protection component 3. The circuit breaker body 1 is used to connect and disconnect the circuit; the actuated switch 2 is located on the front of the circuit breaker body 1 and is used to perform opening and closing operations; the anti-accidental contact protection component 3 covers the outside of the actuated switch 2 and is detachably connected to the circuit breaker body 1. In the closed state, the anti-accidental contact protection component 3 completely covers the operating area of ​​the actuated switch 2, preventing direct contact by external personnel and effectively preventing safety accidents caused by accidental contact, unauthorized operation, or accidental touch. Example

[0018] Please see Figure 1 as well as Figure 4Based on Example 1, this embodiment further defines the anti-accidental touch protection component 3 as an anti-accidental touch transparent cover 31 made of polycarbonate material. This material has high light transmittance and excellent impact resistance, which can provide physical protection while keeping the internal touch switch 2 clearly visible, ensuring that the operating status can be intuitively observed by external personnel, thus balancing safety and ease of maintenance. Example

[0019] Please see Figure 4 Based on Embodiment 2, this embodiment further specifies that the anti-accidental-touch transparent cover 31 has an observation window 32 on its front side. The inner side of the observation window 32 has an indicator mark that is linked to the touch switch 2, including the words "ON" and "OFF". When the touch switch 2 performs opening and closing actions, the indicator mark switches positions synchronously to display the current operating status of the circuit breaker in real time, which makes it convenient for maintenance personnel to quickly determine the on / off status of the equipment without opening the protective components. Example

[0020] Please see Figure 1 as well as Figure 4 Based on Embodiment 1, this embodiment further specifies that the anti-accidental contact protection component 3 has a mounting slider 4 on its rear side, and the circuit breaker body 1 has a mounting rail 5 that cooperates with the mounting slider 4. During installation, the anti-accidental contact protection component 3 is smoothly slid in along the mounting rail 5 to achieve precise guidance and positioning, avoid assembly misalignment, and improve installation efficiency and connection reliability. Example

[0021] Please see Figure 4 Based on Embodiment 1, this embodiment further specifies that the mounting slider 4 is made of rigid plastic and is fixed to the side of the circuit breaker body 1. The top of the slider has a buckle protrusion. When the anti-accidental contact protection component 3 slides into place, the buckle protrusion automatically engages with the slot on the protection component to achieve quick locking. Disassembly is simple and easy, requiring only pressing to release. No tools are needed, making it suitable for frequent maintenance scenarios. Example

[0022] Please see Figure 4 Based on Embodiment 1, this embodiment further specifies that the inner side of the anti-accidental touch protection component 3 is provided with an arc-shaped limiting rib, which is designed along the contour shape of the touch switch 2. When the anti-accidental touch protection component 3 is closed, the arc-shaped limiting rib fits against the touch switch 2 to form a physical limiting structure, effectively restricting it from being forcibly activated or pried open with tools in an unauthorized state, further improving the protection level. Example

[0023] Please see Figure 1 as well as Figure 2Based on Embodiment 1, this embodiment further specifies that the circuit breaker body 1 has a wiring terminal 6 on the front side for connecting the external power supply and the load cable. The wiring terminal 6 is located above or below the anti-accidental contact protection component 3 to ensure that the wiring position is not obstructed when the protection component is installed, which facilitates on-site wiring, testing and subsequent maintenance, and does not affect normal electrical connection operations.

[0024] The working process of this utility model is as follows: The circuit breaker body 1 is fixed inside the distribution cabinet or control box. The power supply side and load side cables are connected via the terminal block 6 on the front. The terminal block 6 is located above or below the anti-accidental contact protection component 3, ensuring normal wiring after the subsequent installation of the protection component without affecting electrical connection work. The anti-accidental contact protection component 3 is aligned with the mounting rail 5 on the circuit breaker body 1 and smoothly slid in along the rail direction. The mounting slider 4 cooperates with the mounting rail 5 to achieve guiding positioning and prevent misalignment. When slid into place, the buckle protrusion automatically locks with the slot on the protection component, completing quick assembly without the need for tools. The anti-accidental contact protection component 3 uses a transparent anti-accidental contact cover 31 made of polycarbonate material, allowing external personnel to clearly view the position and status of the internal touch switch 2 through the observation window 32. The linked "ON" and "OFF" indicators change synchronously with the switch action, realizing visual monitoring of the opening and closing status. During normal use, the anti-accidental contact protection component 3 completely covers the operating area of ​​the touch switch 2, preventing unauthorized personnel from directly contacting it. The arc-shaped limiting rib on its inner side conforms to the contour of the touch switch 2, forming a double limit, effectively preventing accidental operation caused by accidental collision or forced operation. When opening or closing operations are required, maintenance personnel manually press the latch release structure to slide the anti-accidental contact protection component 3 out along the mounting rail 5 for removal, exposing the touch switch 2 before performing the operation. After the operation is completed, the protection component is reinstalled to restore the safe protection state.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A molded case circuit breaker designed to prevent accidental activation, characterized in that, include: The circuit breaker body (1) is used to carry out circuit control functions; A touch switch (2) is located on the front of the circuit breaker body (1) and is used to control the opening and closing operation of the circuit breaker. The anti-misoperation protection component (3) is covered outside the touch switch (2) and is detachably connected to the circuit breaker body (1) to prevent misoperation caused by unauthorized personnel or accidental collisions. The anti-accidental touch protection component (3) completely covers the operating area of ​​the touch switch (2) when it is closed, preventing direct external contact.

2. The molded case circuit breaker for preventing accidental activation according to claim 1, characterized in that: The anti-accidental touch protection component (3) is an anti-accidental touch transparent cover (31) made of polycarbonate material, which has high light transmittance and impact resistance, and is used to keep the operation status visible while providing protection.

3. A molded case circuit breaker for preventing accidental activation according to claim 2, characterized in that: The anti-accidental touch protection component (3) has an observation window (32) on the front. The inner side of the observation window (32) has an indicator that is linked to the touch switch (2). The indicator includes the words "ON" and "OFF" and displays the current open / closed state synchronously with the action of the touch switch (2).

4. A molded case circuit breaker for preventing accidental activation according to claim 1, characterized in that: The anti-accidental contact protection component (3) is provided with an installation slider (4) on the rear side, and the circuit breaker body (1) is provided with an installation slide rail (5) that cooperates with the installation slider (4) to guide the anti-accidental contact protection component (3) to slide smoothly into place during the installation process.

5. A molded case circuit breaker for preventing accidental activation according to claim 4, characterized in that: The mounting slider (4) is made of hard plastic and is fixed to the side of the circuit breaker body (1). It has a buckle protrusion on its top, which cooperates with the slot on the anti-accidental contact protection component (3) to achieve quick locking.

6. A molded case circuit breaker for preventing accidental activation according to claim 1, characterized in that: The inner side of the anti-accidental touch protection component (3) is provided with an arc-shaped limiting rib. When the anti-accidental touch protection component (3) is closed, the arc-shaped limiting rib fits against the outline of the touch switch (2), restricting it from being forcibly activated in an unauthorized state.

7. A molded case circuit breaker for preventing accidental activation according to claim 1, characterized in that: The circuit breaker body (1) has a terminal (6) on the front. The terminal (6) is located above or below the anti-misoperation protection component (3), which facilitates the connection of external cables and is not blocked by the anti-misoperation protection component (3).

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