A high-stability universal circuit breaker

By designing a flip-over component, a limit component, and an anti-detachment component on the universal circuit breaker, and using a shielding cover to protect the display screen and control buttons, the problem of easy contamination of the display screen and control buttons is solved, and the stability and durability of the device are improved.

CN224458043UActive Publication Date: 2026-07-03SHANGHAI RENMIN ELECTRIC APPLIANCE SWITCH FACTORY GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI RENMIN ELECTRIC APPLIANCE SWITCH FACTORY GRP CO LTD
Filing Date
2025-05-29
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The display screens and control buttons of existing universal circuit breakers are susceptible to corrosion from dust and contaminants, resulting in a high risk of damage.

Method used

A flipping component, a limiting component, and an anti-detachment component were designed. The display screen and control buttons are covered by a cover, and a torsion spring and hook structure are combined to enable the cover to open and close quickly, protecting the display screen and control buttons.

Benefits of technology

It effectively reduces the damage to the display screen and control buttons caused by dust and debris, lowers the probability of damage, and improves the stability and service life of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of circuit breaker technology and discloses a highly stable universal circuit breaker, including a circuit breaker body, a display screen, and several control buttons. Two fixing blocks are fixedly connected to the side of the circuit breaker body near the display screen, and a flipping assembly is connected between the two fixing blocks. The other end of the flipping assembly is connected to a cover covering the surface of the display screen and several control buttons. The other end of the cover is connected to a limit assembly, and the other end of the limit assembly is connected to an anti-detachment assembly. The other end of the anti-detachment assembly is connected to the circuit breaker body. This highly stable universal circuit breaker can reduce damage to the display screen from dust or other debris adhering to or impacting it, thereby reducing the probability of damage to the display screen and control buttons. The cover can be quickly opened when the circuit breaker body needs to be used, and can protect the display screen and control buttons of the circuit breaker body when the circuit breaker body is not in use.
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Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, specifically to a universal circuit breaker with high stability. Background Technology

[0002] A universal circuit breaker (also known as a frame circuit breaker or air circuit breaker) is a high-performance circuit breaker used in low-voltage power distribution systems. It is mainly used to protect circuits and equipment from damage caused by faults such as short circuits, overloads, and undervoltage. Its name "universal" comes from its comprehensive functions and strong scalability, making it suitable for various complex power distribution scenarios.

[0003] The patent with publication number CN208111365U discloses an intelligent universal circuit breaker. Its structure includes an indicator light, a support base, an intelligent circuit breaker, a display screen, a closing / opening indicator, a closing button, a reset button, connecting screws, a circuit breaker, an arc-extinguishing chamber, a closing button, an energy release indicator, a spring, a protective shell, and a main body. The support base is installed at the lower end of the intelligent circuit breaker and connected to the protective shell by screws. Two horizontally arranged protective shells are provided, with the intelligent circuit breaker located inside. This intelligent universal circuit breaker features an arc-extinguishing chamber in its structure. Current is sensed through a constant conductive rod in the device, and then conductive is achieved through a guide sleeve and a bellows. The current flow is suppressed by the contacts, enabling rapid arc extinguishing and current suppression after the medium- and high-voltage circuit is disconnected, preventing accidents and unexpected events. Furthermore, a shielding cover prevents current outflow, thereby enhancing the device's practicality.

[0004] However, the aforementioned universal circuit breaker still has the following problems in actual use:

[0005] Intelligent universal circuit breakers are typically equipped with displays for real-time monitoring and parameter setting. However, most of these displays are currently exposed to the external environment, making them highly susceptible to dust and other contaminants, thus increasing the risk of damage. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a highly stable universal circuit breaker that can protect the display screen and control buttons when they are not needed on the circuit breaker body, thereby reducing the probability of damage.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a highly stable universal circuit breaker, comprising a circuit breaker body, a display screen mounted on the circuit breaker body, and several control buttons. Two fixing blocks are fixedly connected to the side of the circuit breaker body near the display screen, and a flipping component is connected between the two fixing blocks. The other end of the flipping component is connected to a cover covering the surface of the display screen and several control buttons. The other end of the cover is connected to a limit component, and the other end of the limit component is connected to an anti-disengagement component. The other end of the anti-disengagement component is connected to the circuit breaker body.

[0008] Furthermore, the flipping assembly includes a torsion spring, a rotating shaft, and two rotating blocks. One end of each of the two rotating blocks is fixedly connected to one end of the shielding cover. The other ends of the two rotating blocks are respectively sleeved and rotatably connected to the outer walls of both ends of the rotating shaft. The outer wall of the rotating shaft is also fixedly connected to the inner walls of the two fixed blocks. The torsion spring is sleeved on the outside of the middle part of the rotating shaft. The two ends of the torsion spring are respectively fixedly connected to the circuit breaker body and the shielding cover.

[0009] Furthermore, the limiting component includes two hanging frames and two hooks. One end of each hanging frame is fixedly connected to the outer wall of the cover away from the rotating block. One end of each hook is connected to the anti-detachment component. The outer wall of the other end of each hook is slidably connected to the inner wall of the hanging frame opening.

[0010] Furthermore, two sliding openings are provided on the surface of the circuit breaker body, and the two ends of the anti-detachment component away from the hook are respectively located in the two sliding openings.

[0011] Furthermore, the anti-detachment component includes a U-shaped plate, two sliders, and two push springs. One end of each push spring is fixedly connected to the inner wall of the two sliding openings near the control button. The other end of each push spring is fixedly connected to the side wall of the lower end of each slider. The outer wall of each slider is slidably connected to the inner wall of the two sliding openings. The upper ends of each slider extend through to the outside of the two sliding openings and are fixedly connected to the bottom surfaces of both ends of the U-shaped plate. The same side of both ends of the U-shaped plate is fixedly connected to the end of each hook away from the hanging frame.

[0012] Furthermore, a dust removal port is provided on the side of both slides away from the control button.

[0013] Furthermore, the inner walls of both dust removal ports are fastened with mounting blocks by bolts, and a stop block is fixedly connected between the two mounting blocks. The outer wall of the stop block is slidably connected to the inner wall of the dust removal port.

[0014] Furthermore, a sponge is fixedly connected to the side of the cover near the display screen, and the sponge abuts against the display screen and several control buttons.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This type of highly stable universal circuit breaker reduces the damage to the display screen and control buttons caused by dust or other debris adhering to or impacting the screen by installing a cover in front of the display screen and control buttons on the circuit breaker body.

[0017] This type of highly stable universal circuit breaker, by setting flip-up components, limit components, and anti-detachment components at both ends of the cover, can quickly open the cover when the circuit breaker body needs to be used, and protect the display screen and control buttons of the circuit breaker body when the circuit breaker body is not needed. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall appearance of the present utility model;

[0019] Figure 2 This is a schematic diagram of the overall appearance of the cover of this utility model after it is opened;

[0020] Figure 3 This is a detailed connection diagram of the circuit breaker body, display screen, control buttons, and other components of this utility model;

[0021] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 This is a detailed connection diagram of the limiting component and anti-detachment component of this utility model.

[0023] In the diagram: 1. Circuit breaker body; 2. Fixing block; 3. Rotating block; 4. Torsion spring; 5. Cover; 6. U-shaped plate; 7. Display screen; 8. Control button; 9. Rotating shaft; 10. Hanging frame; 11. Hook; 12. Stopping block; 13. Sliding block; 14. Push spring; 15. Mounting block; 16. Sponge; 101. Sliding port; 102. Dust removal port. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Please see Figures 1-5A highly stable universal circuit breaker includes a circuit breaker body 1, a display screen 7 mounted on the circuit breaker body 1, and several control buttons 8. Two fixing blocks 2 are fixedly connected to the side of the circuit breaker body 1 near the display screen 7. A flipping component is connected between the two fixing blocks 2. The other end of the flipping component is connected to a cover 5 covering the surface of the display screen 7 and several control buttons 8. The other end of the cover 5 is connected to a limit component. The other end of the limit component is connected to an anti-disengagement component. The other end of the anti-disengagement component is connected to the circuit breaker body 1.

[0026] This utility model discloses a highly stable universal circuit breaker with a structure similar to existing universal circuit breakers, such as the intelligent universal circuit breaker disclosed in patent publication number CN208111365U. Figures 1 to 5 As shown, in this utility model, the highly stable universal circuit breaker, after installation and normal use, can prevent external dust or other debris from falling onto the display screen 7 or control buttons 8 and accelerating damage. After the circuit breaker body 1 has been debugged, maintenance personnel can place the cover 5 over the display screen 7 and control buttons 8 using a flip-up component. Then, a limit component will limit the cover 5, thus providing protection and reducing the probability of damage. Furthermore, when the next maintenance is needed, simply push the anti-disengagement component. Pushing the anti-disengagement component will move the limit component, releasing the limit on the cover 5. At this point, the cover 5 will automatically open under the action of the flip-up component, making it convenient and quick.

[0027] As a preferred embodiment of this utility model, the flipping assembly includes a torsion spring 4, a rotating shaft 9, and two rotating blocks 3. One end of each of the two rotating blocks 3 is fixedly connected to one end of the shielding cover 5. The other ends of the two rotating blocks 3 are respectively sleeved and rotatably connected to the outer walls of both ends of the rotating shaft 9. The outer wall of the rotating shaft 9 is also fixedly connected to the inner walls of the two fixed blocks 2. The torsion spring 4 is sleeved on the outside of the middle part of the rotating shaft 9. The two ends of the torsion spring 4 are respectively fixedly connected to the circuit breaker body 1 and the shielding cover 5.

[0028] More specifically, when it is necessary to open the cover 5 which is in a covered state, simply release the limiting component. At this time, the cover 5 can rotate with the two rotating blocks 3 via the pivot 9 under the action of the torsion spring 4, thereby opening the cover 5.

[0029] As a preferred embodiment of the present invention, the limiting component includes two hanging frames 10 and two hooks 11. One end of each of the two hanging frames 10 is fixedly connected to the outer wall of the end of the cover 5 away from the rotating block 3. One end of each of the two hooks 11 is connected to the anti-detachment component. The outer wall of the other end of each of the two hooks 11 is slidably connected to the inner wall of the opening of the hanging frame 10.

[0030] More specifically, when it is necessary to cover the display screen 7 and control buttons 8 with the cover 5, simply put the cover 5 down and insert the two hooks 11 into the two hanging frames 10 respectively to prevent the cover 5 from opening by itself.

[0031] As a preferred embodiment of this utility model, the surface of the circuit breaker body 1 has two sliding openings 101, and the two ends of the anti-detachment component away from the hook 11 are respectively located in the two sliding openings 101.

[0032] More specifically, by setting the sliding opening 101, the anti-detachment component can be stored, while restricting the direction of movement of the anti-detachment component.

[0033] As a preferred embodiment of this utility model, the anti-detachment component includes a U-shaped plate 6, two sliders 13, and two push springs 14. One end of each push spring 14 is fixedly connected to the inner wall of the two sliding openings 101 near the control button 8. The other end of each push spring 14 is fixedly connected to the side wall of the lower end of each slider 13. The outer wall of each slider 13 is slidably connected to the inner wall of each sliding opening 101. The upper ends of each slider 13 extend through the outside of each sliding opening 101 and are fixedly connected to the bottom surfaces of both ends of the U-shaped plate 6. The same side of each end of the U-shaped plate 6 is fixedly connected to the end of each hook 11 away from the hanging frame 10.

[0034] More specifically, when it is necessary to limit the position of the cover 5, simply put the cover 5 down first, then push the U-shaped plate 6. The U-shaped plate 6 will move within the two sliding ports 101 via the two sliders 13, and compress the two push springs 14 at the same time. At this time, the two hooks 11 connected to the U-shaped plate 6 can move a distance towards the control button 8. Then the cover 5 is closed, so that the two hanging frames 10 are parallel to the surface of the circuit breaker body 1. After that, release the U-shaped plate 6, and the U-shaped plate 6 and the two sliders 13 can be reset under the action of the two push springs 14. At the same time as resetting, the two hooks 11 are inserted into the two hanging frames 10 to complete the limit.

[0035] In a preferred embodiment of this utility model, a dust removal port 102 is provided through the two sliding ports 101 on the side away from the control button 8. The inner walls of the two dust removal ports 102 are fastened with mounting blocks 15 by bolts, and a stop block 12 is fixedly connected between the two mounting blocks 15. The outer wall of the stop block 12 is slidably connected to the inner wall of the dust removal port 102.

[0036] More specifically, the dust removal port 102 can discharge dust or other debris remaining in the sliding port 101. By setting the mounting block 15 and the blocking block 12, the opening of the dust removal port 102 can be blocked when dust removal is not required, thereby preventing the U-shaped plate 6 from falling out of the dust removal port 102.

[0037] As a preferred embodiment of this utility model, a sponge 16 is fixedly connected to the side of the cover 5 near the display screen 7, and the sponge 16 abuts against the display screen 7 and several control buttons 8.

[0038] More specifically, by setting up the sponge 16, damage to the display screen 7 and control buttons 8 can be further reduced.

[0039] 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 high-stability universal circuit breaker, comprising a circuit breaker body (1), a display screen (7) and a plurality of control buttons (8) installed on the circuit breaker body (1), characterized in that: Two fixing blocks (2) are fixedly connected to the side of the circuit breaker body (1) near the display screen (7). A flipping component is connected between the two fixing blocks (2). The other end of the flipping component is connected to a cover (5) covering the surface of the display screen (7) and several control buttons (8). The other end of the cover (5) is connected to a limit component. The other end of the limit component is connected to an anti-disengagement component. The other end of the anti-disengagement component is connected to the circuit breaker body (1). The limiting component includes two hanging frames (10) and two hooks (11). One end of each of the two hanging frames (10) is fixedly connected to the outer wall of the end of the cover (5) away from the rotating block (3). One end of each of the two hooks (11) is connected to the anti-detachment component. The outer wall of the other end of each of the two hooks (11) is slidably connected to the inner wall of the opening of the hanging frame (10). The anti-detachment component includes a U-shaped plate (6), two sliders (13) and two push springs (14). One end of each of the two push springs (14) is fixedly connected to the inner wall of the two sliding openings (101) near the control button (8). The other end of each of the two push springs (14) is fixedly connected to the side wall of the lower end of each of the two sliders (13). The outer wall of each of the two sliders (13) is slidably connected to the inner wall of each of the two sliding openings (101). The upper ends of each of the two sliders (13) extend through the outside of the two sliding openings (101) and are fixedly connected to the bottom surfaces of both ends of the U-shaped plate (6). The same side of each end of the U-shaped plate (6) is fixedly connected to the end of each of the two hooks (11) away from the hanging frame (10).

2. The universal circuit breaker with high stability according to claim 1, characterized in that: The flipping assembly includes a torsion spring (4), a rotating shaft (9), and two rotating blocks (3). One end of each of the two rotating blocks (3) is fixedly connected to one end of the shielding cover (5). The other ends of the two rotating blocks (3) are respectively sleeved and rotatably connected to the outer walls of both ends of the rotating shaft (9). The outer wall of the rotating shaft (9) is also fixedly connected to the inner walls of the two fixed blocks (2). The torsion spring (4) is sleeved on the outside of the middle part of the rotating shaft (9). The two ends of the torsion spring (4) are respectively fixedly connected to the circuit breaker body (1) and the shielding cover (5).

3. The universal circuit breaker with high stability according to claim 2, characterized in that: The circuit breaker body (1) has two sliding openings (101) on its surface, and the two ends of the anti-detachment component away from the hook (11) are respectively located in the two sliding openings (101).

4. The universal circuit breaker with high stability according to claim 3, characterized in that: Both of the two slides (101) have a dust removal port (102) extending through them on the side away from the control button (8).

5. The universal circuit breaker with high stability according to claim 4, characterized in that: The inner walls of the two cleaning ports (102) are fastened with mounting blocks (15) by bolts, and a stop block (12) is fixedly connected between the two mounting blocks (15). The outer wall of the stop block (12) is slidably connected to the inner wall of the cleaning port (102).

6. The universal circuit breaker with high stability according to claim 5, characterized in that: The shield (5) is fixedly connected to a sponge (16) on the side near the display screen (7), and the sponge (16) abuts against the display screen (7) and several control buttons (8).