Circuit breaker state indication structure and circuit breaker

By using different colored jumpers and latches, the circuit breaker status is indicated. By indicating the status of the circuit breaker when its status changes, the circuit breaker status can be quickly and reliably indicated, reducing the failure rate of the transmission structure, reducing the overall thickness, and improving operational safety and maintenance efficiency.

CN121439623APending Publication Date: 2026-01-30GAONENG GELE ELECTRIC CO LTD

Patent Information

Application Number
CN202511569412.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-30
Publication Date
2026-01-30

AI Technical Summary

Technical Problem

The indicators of existing circuit breakers display the same color when the circuit is closed and open, making it impossible for users to distinguish the status. Furthermore, the transmission structure is complex and prone to failure, leading to misoperation and difficulties in maintenance.

Method used

By using trip latches, locks, and indicators of different colors, reliable indication of the closing, opening, and tripping status is achieved through the locking and unlocking of the trip latches and locks when the circuit breaker status changes. This reduces the need for dedicated indicators and uses a rigid push method on the same plane for status transition.

Benefits of technology

It enables rapid and reliable indication of circuit breaker status, reduces the failure rate of the transmission structure, lowers the overall thickness, and improves operational safety and maintenance efficiency.

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Abstract

The invention relates to the technical field of circuit breakers, in particular to a circuit breaker state indication structure and a circuit breaker, and the structure comprises a jump buckle, a lock buckle and an indication member which are different in color. In the switching-on state, the jump pin and the lock catch are locked and matched, and the jump pin moves to push the indicating piece, so that the lock catch moves to the position below the window to display the switching-on state. In the opening state, the jump pin and the lock catch are locked and matched, the lock catch moves to be separated from the lower part of the window, and the jump pin moves to push the indicating piece, so that the indicating piece slides to the lower part of the window to display the opening state; in the tripping state, the jump pin and the lock catch are unlocked, the lock catch moves to be separated from the position below the window, and the jump pin moves to the position below the window so as to display the tripping state. According to the application, a special state indicating piece is reduced, the transmission relation is simplified, and the display of three states is completed through the jump pin, the lock catch and the indicating piece, so that the transmission stability of each component is improved, the overall thickness of the indicating structure is reduced, and the three states of the circuit breaker are conveniently and accurately distinguished.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of circuit breakers, in particular to a circuit breaker state indication structure and a circuit breaker. BACKGROUND

[0002] Circuit breakers usually have an indication member for circuit breaker state indication, but the indication member is usually linked with the handle or support, and will move to indicate whether it is normal tripping operation or fault tripping, so users cannot determine whether the circuit breaker is tripped by manual operation or fault tripping, which is not conducive to fault troubleshooting and maintenance.

[0003] Through retrieval, a circuit breaker tripping indication structure is disclosed in Chinese Patent Publication No. CN220821442U, which includes a tripping indication member and an elastic member, the elastic member is connected between the housing and the tripping indication member, the tripping indication member is installed on the housing and can move back and forth between the tripping position and the tripping position, the tripping indication member is provided with a limiting portion that limits the resistance portion of the housing, and the operating mechanism of the circuit breaker has a driving portion; when the circuit breaker is tripped or closed, the limiting portion cooperates with the resistance portion; when the circuit breaker is tripped, the driving portion drives the limiting portion to disengage from the resistance portion, and the tripping indication member moves from the tripping position to the tripping position under the elastic force of the elastic member. The application also provides a circuit breaker including an operating mechanism and the above-mentioned tripping indication structure. The tripping indication structure and the circuit breaker of the application remove the restriction between the tripping indication member and the resistance portion through the driving portion when the circuit breaker is tripped, and the tripping indication member switches position under the action of the elastic member, thereby displaying the tripped state.

[0004] The related technology in the above has the following defects: The technology displays white at the window when the circuit breaker is closed and tripped, so that the user cannot distinguish whether the circuit breaker is in the tripped state or the closed state; After manual closing, the reset portion pushes the pushed side wall to move, so that the tripping indication member is reset in the horizontal direction, the elastic rib releases energy to reset the tripping indication member in the vertical direction, the reset structure is redundant, and transmission failure may occur due to external vibration, machining error, assembly error and fatigue strength, and the transmission relationship is unreliable; The tripping indication member needs to move and reset in two perpendicular directions, the reset structure is complex, and a special indication member is needed for state indication, which increases the overall thickness of the indication structure. SUMMARY

[0005] In order to improve the stability of the transmission of each component, reduce the overall thickness of the indication structure and facilitate accurate distinction of the three states of the circuit breaker, the present application provides a circuit breaker state indication structure and a circuit breaker.

[0006] The first aspect of the present application provides a circuit breaker state indication structure, which adopts the following technical scheme: a circuit breaker state indication structure, comprising color-different jumpers, lockers and indicating pieces, the jumpers and the lockers are both rotationally connected to the inside of a shell and are driven to move by a handle during switching on and off, and the indicating pieces are slidingly fitted in the inside of the shell; In the switching on state, the jumpers and the lockers are in locked cooperation, the jumpers push the indicating pieces to move, so that the indicating pieces slide away from below the window, and the lockers move to below the window to display the switching on state; In the switching off state, the jumpers and the lockers are in locked cooperation, the lockers move away from below the window, and the jumpers push the indicating pieces to move, so that the indicating pieces slide to below the window to display the switching off state; In the tripping state, the jumpers and the lockers are unlocked, the lockers move away from below the window, and the jumpers move to below the window to display the tripping state.

[0007] Optionally, the indicating pieces are provided with notches, and the lockers have hook-shaped parts; In the switching on state, the hook-shaped parts are in the window below and are clamped in the notches to complete the locking.

[0008] Optionally, the lockers have elastic tentacle parts, and the shell is provided with a limiting block; When tripping occurs, the tentacle parts abut against the limiting block due to the tripping force, so that the lockers move and are unlocked with the jumpers; After the tripping is completed, the tentacle parts are elastically reset, so that the lockers move back to position, to make the jumpers be locked with the lockers again in the subsequent process.

[0009] Optionally, the indicating pieces have push areas for the jumpers to move in; In the switching on state and the switching off state, the jumpers push the indicating pieces to move through the side walls of the push areas.

[0010] Optionally, the jumpers are drivingly connected to the handle through a linkage rod, and the handle and the shell are jointly connected with a torsional spring; When tripping occurs, the torsional spring returns to the natural state and makes the handle rotate back to position, and the handle drives the jumpers to move away from the push areas through the linkage rod.

[0011] Optionally, the handle drives the jumpers to first rotate forward and then rotate backward through the linkage rod when tripping occurs, the jumpers move away from the push areas after rotating forward, and the jumpers are locked with the lockers again and are right below the push areas after rotating backward.

[0012] Optionally, the indicating pieces are not on the movement track of the jumpers from the switching on state to the tripping state.

[0013] Optionally, the indicating pieces have elastic parts, and the elastic parts are located at one end of the push areas; When the tripping state is converted into the closing state, the trip will move to extrude the elastic part, the elastic part will be deformed, and after the trip rotates to be separated from the elastic part, the elastic part will be elastically reset, and at this time the trip will be in the pushing area.

[0014] Optionally, the trip has an arc-shaped abutting part for pushing the indicating part to move, and the arc-shaped abutting part is tangent to the indicating part in the rotating process.

[0015] In the second aspect, the circuit breaker provided by the present application adopts the following technical scheme: the circuit breaker comprises: a housing having a window; a circuit breaker state indicating structure arranged in the housing; a handle rotationally connected to the housing and used for controlling opening and closing.

[0016] In summary, the present application has the following beneficial technical effects: The present application displays the closing state through the red lock, displays the opening state through the green indicating part, and displays the tripping state through the yellow trip, so that the user can quickly judge the three states of the circuit breaker through the colors seen at the window. The arrangement of the lock, the indicating part and the trip can directly display the state of the circuit breaker through the components of the circuit breaker itself, reduces the special fault indicating part, makes the structure more compact, occupies less space, and realizes mechanical locking of the trip, the lock and the indicating part in different states through the locking relationship of the lock and the trip and the arrangement of the hook-shaped part and the pushing area, so that the misdisplay is avoided. The present application tries to use the same plane rigid pushing mode to complete the state conversion, reduces the overall thickness of the indicating structure, makes the transmission relationship more reliable, reduces the failure rate of the transmission structure, makes the state switching speed of the circuit breaker faster, and enables the user to know the state of the circuit breaker faster. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the circuit breaker in the closing state according to the embodiment of the present application; Figure 2 is a structural schematic view of the inside of the housing according to the embodiment of the present application; Figure 3 is a structural schematic view of the circuit breaker in the tripping state according to the embodiment of the present application; Figure 4 is a structural schematic view of the housing and the indicating part according to the embodiment of the present application; Figure 5 is a structural schematic view of the indicating part according to the embodiment of the present application; Figure 6 is a structural schematic view of the housing, the indicating part and the trip according to the embodiment of the present application; Figure 7This is a schematic diagram of the handle and the jump buckle in an embodiment of this application; Figure 8 This is a structural schematic diagram of the housing, indicator, latch, and lock according to an embodiment of this application; Figure 9 This is a schematic diagram of the structure of the housing and the latch in an embodiment of this application.

[0018] Reference numerals: 1. Housing; 11. Window; 12. Slide groove; 13. Limiting block; 2. Handle; 21. Linkage rod; 22. Torsion spring; 3. Jumper buckle; 31. Protrusion; 32. Arc-shaped abutment; 4. Lock; 41. Hook-shaped part; 42. Antennae part; 5. Indicator; 51. Vertical part; 52. Elastic part; 53. Through groove; 54. Pushing area; 55. Notch. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1 -Appendix Figure 9 This application will be described in further detail.

[0020] This application discloses a circuit breaker status indication structure. For example... Figures 1 to 3 As shown, a circuit breaker status indication structure includes trip latches 3, latches 4, and indicator elements 5 of different colors. Trip latches 3 and latches 4 are rotatably connected inside the housing 1 and are driven by the handle 2 when the circuit is opened or closed. The indicator element 5 is slidably fitted inside the housing 1.

[0021] When the circuit is closed, the trip latch 3 and the latch 4 lock together. The trip latch 3 will move to push the indicator 5, causing the indicator 5 to slide away from below the window 11. The latch 4 will then move to below the window 11 to indicate the closed status.

[0022] When the circuit is open, the trip latch 3 and the locking latch 4 are locked together. The locking latch 4 will move away from below the window 11, and the trip latch 3 will move to push the indicator 5, so that the indicator 5 slides below the window 11 to show the open status.

[0023] When the latch is in the disengaged state, the jump latch 3 and the lock latch 4 are unlocked. The lock latch 4 will move away from below the window 11, and the jump latch 3 will move to below the window 11 to display the disengaged state.

[0024] Compared to existing technologies, this application, through the cooperation of trip latch 3, latch 4 and indicator 5, allows users to quickly determine the three states of the circuit breaker by the color seen at window 11, so as to distinguish whether the circuit breaker is manually disconnected or disconnected due to a fault, avoid misleading the circuit breaker to be operated incorrectly, ensure that maintenance personnel can clearly identify the cause of the power outage, and avoid forcibly closing the circuit breaker before the fault is eliminated, thus significantly improving operational safety and maintenance efficiency.

[0025] In this embodiment, the indicator 5 is set to green, the snap button 3 is set to yellow, and the latch 4 is set to red.

[0026] like Figure 4 As shown, the interior of the housing 1 is provided with a sliding groove 12, and the indicator 5 is slidably embedded in the sliding groove 12 in the horizontal direction to ensure the stability of the indicator 5 during the sliding process and to prevent the indicator 5 from deviating or getting stuck during the sliding process.

[0027] like Figure 4 and Figure 5 As shown, the indicator 5 has a vertical portion 51, an elastic portion 52, and a through groove 53. The vertical portion 51 and the elastic portion 52 are respectively located at both ends of the indicator 5, and a pushing area 54 is provided between the vertical portion 51 and the elastic portion 52. One end of the elastic portion 52 is located in the through groove 53, and the other end of the elastic portion 52 extends downward at an angle. In the closed and open states, the trip latch 3 will be located in the pushing area 54 and will push the indicator 5 to move through the elastic portion 52 or the vertical portion 51, so as to display the status of the circuit breaker.

[0028] like Figure 6 and Figure 7 As shown, specifically, the trip latch 3 is integrally formed, and the trip latch 3 has a protrusion 31 and an arc-shaped abutment 32. In the closed and open states, the protrusion 31 will be located within the push area 54; when switching from the closed state to the open state, the protrusion 31 will abut against the elastic part 52 and push the elastic part 52 to the left, so that the indicator 5 moves to the left in sync, causing the indicator 5 to move below the window 11; when switching from the open state to the closed state, the trip latch 3 will move to the lower right as a whole, and the arc-shaped abutment 32 will abut against the vertical part 51 and push the vertical part 51 to the right, so that the indicator 5 moves to the right in sync, causing the indicator 5 to move away from below the window 11. The arc-shaped abutment 32 smoothly engages with the indicator 5 during rotation, avoiding jamming.

[0029] In addition, the push method of the jump buckle 3 to the indicator 5 is rigid push, while the prior art requires the indicator 5 to be vertically lifted by the drive part and reset by the reset part. The bidirectional rigid drive of this application eliminates elastic delay and improves the response speed of state transition.

[0030] It is worth noting that the indicator 5 is integrally molded, which integrates the push area 54 into the indicator 5 itself, eliminating the need for additional components and thus reducing the space occupied by the indicator structure.

[0031] like Figure 8 and Figure 9As shown, the indicator 5 has a notch 55, and the upper end of the latch 4 has a hook-shaped part 41. In the closed state, the hook-shaped part 41 will be below the window 11 and engaged in the notch 55, so that the position of the indicator 5 is locked, preventing the indicator 5 from being dislodged due to external vibration, thereby minimizing the occurrence of false circuit breaker status display; in addition, the notch 55 ensures that the indicator 5 and the latch 4 will not interfere with each other during opening and closing operations, thereby improving the accuracy of circuit breaker status indication.

[0032] The latch 4 has an elastic antennae 42, and a limiting block 13 is integrally formed inside the housing 1. When a trip (magnetic trip or thermal trip) occurs, the antennae 42 will abut against the limiting block 13 due to the tripping force, causing the latch 4 to move and unlock with the jumper 3, so that the jumper 3 can move to below the window 11, thereby displaying the tripped state; after the trip is completed, the antennae 42 elastically resets, causing the latch 4 to move back to its original position, so that the jumper 3 can re-lock and engage with the latch 4 in subsequent processes.

[0033] like Figure 2 and Figure 8 As shown, the jump buckle 3 is connected to the handle 2 via the linkage rod 21. The handle 2 and the housing 1 are connected together by a torsion spring 22. One end of the torsion spring 22 is fixedly connected to the handle 2, and the other end of the torsion spring 22 is fixedly connected to the housing 1.

[0034] When tripping occurs, the hook-shaped part 41 will shift to the lower left and disengage from below the window 11. At the same time, the trip latch 3 and the latch 4 will unlock, the torsion spring 22 will return to its natural state, and cause the handle 2 to rotate to the left to reset. Since the rotation speed of the handle 2 is relatively slow, during the reset process of the handle 2, the handle 2 will squeeze the trip latch 3 through the elastic force transmitted by the linkage rod 21, causing the trip latch 3 to rotate counterclockwise, and the protrusion 31 will move downward and disengage from the push area 54. As the handle 2 continues to rotate to reset, the handle 2 will pull the trip latch 3 clockwise to below the window 11 and the push area 54 through the linkage rod 21, so that the trip latch 3 returns to its original position and locks with the reset latch 4, so that the handle 2 can perform the closing operation after tripping.

[0035] The indicator 5 is not on the trajectory of the tripping lever 3 as it transitions from the closed state to the released state. That is, after the protrusion 31 of the tripping lever 3 disengages from the push area 54, the entire tripping lever 3 will move to the upper left. During the clockwise rotation of the tripping lever 3 back to its original position, the protrusion 31 will pass under the elastic part 52 and move to the right side of the elastic part 52, so that the tripping lever 3 will not push the elastic part 52 during the release rotation, but will instead bypass the elastic part 52. Therefore, the tripping lever 3 will pass the indicator 5 without collision. In the prior art release process, the drive unit will inevitably lift the release indicator 5, thereby generating friction. This application eliminates mechanical wear, extends service life, and avoids jamming.

[0036] When switching from the tripped state to the closed state, the user pushes the handle 2 to the right. The handle 2 will drive the trip latch 3 and the locking latch 4 to move to the lower right via the linkage rod 21. The protrusion 31 will move synchronously with the trip latch 3 and squeeze the elastic part 52. The lower end of the elastic part 52 will lift up and enter the through groove 53. After closing, the protrusion 31 will move to the right side of the elastic part 52, and the elastic part 52 will elastically reset. The protrusion 31 and the arc-shaped abutment part 32 will be located back in the push area 54 for subsequent status display.

[0037] The implementation principle of the circuit breaker status indication structure in this application embodiment is as follows: When tripping occurs, the hook-shaped part 41 will shift to the lower left and disengage from below the window 11. At the same time, the trip latch 3 and the latch 4 will unlock, the torsion spring 22 will return to its natural state and cause the handle 2 to rotate to the left to reset. During the reset process of the handle 2, the handle 2 will squeeze the trip latch 3 through the elastic force transmitted by the linkage rod 21, causing the trip latch 3 to rotate counterclockwise, and the protrusion 31 will move downward and disengage from the push area 54. As the handle 2 continues to rotate and reset, the handle 2 will pull the trip latch 3 clockwise to below the window 11 and the push area 54 through the linkage rod 21, so that the trip latch 3 returns to its original position and locks with the reset latch 4, so that the handle 2 can perform the closing operation after tripping. The user can know that the circuit breaker is in the tripped state by observing the trip latch 3 exposed below the window 11.

[0038] When switching from the tripped state to the closed state, the user pushes the handle 2 to the right. The handle 2 will drive the trip latch 3 and the latch 4 to move downward and to the right through the linkage rod 21. The protrusion 31 will move synchronously with the trip latch 3 and squeeze the elastic part 52. The lower end of the elastic part 52 will lift up and enter the through groove 53. The latch 4 will rotate clockwise, and the hook-shaped part 41 will move upward and to the right and embed into the notch 55, realizing the interlocking of the latch 4 and the indicator 5. At this time, the hook-shaped part 41 will be below the window 11. After the closing is completed, the protrusion 31 will move to the right side of the elastic part 52, and the elastic part 52 will elastically reset. The protrusion 31 and the arc-shaped abutment part 32 will be located back in the push area 54. The user can know that the circuit breaker is in the closed state by observing the hook-shaped part 41 exposed below the window 11.

[0039] When switching from the closed state to the open state, the user pushes the handle 2 to the left. The handle 2 transmits force through the linkage rod 21. The linkage rod 21 pulls the trip latch 3 to the left and rotates clockwise. The torsion spring 22 deforms and stores energy. The protrusion 31 abuts against the elastic part 52 and pushes the elastic part 52 to the left, so that the indicator 5 moves to the left in sync. The indicator 5 moves to below the window 11. The hook-shaped part 41 of the latch 4 moves to the lower right and disengages from the area of ​​the window 11. The notch 55 completely separates from the hook-shaped part 41, releasing the closed locking state. After the protrusion 31 is pushed into place, the trip latch 3 will slightly rebound under the pull of the linkage rod 21, thereby positioning itself in the center of the push area 54. The arc-shaped abutment part 32 forms an angled contact with the vertical part 51 to prevent retraction. The contact part 42 will elastically fit against the limit block 13 to maintain a stable position. The user can know that the circuit breaker is in the open state by observing the indicator 5 exposed below the window 11.

[0040] When switching from the open to the closed state, the user pushes the handle 2 to the right. The handle 2 transmits force through the linkage rod 21, which pulls the trip latch 3 to the lower right and rotates counterclockwise. The torsion spring 22 returns to its natural state and assists in pushing the trip latch 3. The arc-shaped abutment part 32 abuts against the vertical part 51 and pushes the vertical part 51 to the right, causing the indicator 5 to move to the right simultaneously, so that the indicator 5 is removed from below the window 11. The latch 4 rotates clockwise, and the hook-shaped part 41 moves to the upper right. The hook 41 moves to the bottom of window 11 and is embedded in the notch 55, thus interlocking the latch 4 and the indicator 5. At this time, the hook 41 will be below window 11. The protrusion 31 continues to move to the right with the trip latch 3 to the bottom of the push area 54. The elastic part 52 is elastically reset and reconstructs the push area 54 with the vertical part 51. A dynamic gap of 0.5mm is maintained between the protrusion 31 and the elastic part 52 to reserve space for zero-contact tripping. The user can know that the circuit breaker is in the closed state by observing the hook 41 exposed below window 11.

[0041] In summary, this application uses a red latch 4 to indicate the closed state, a green indicator 5 to indicate the open state, and a yellow trip latch 3 to indicate the tripped state, allowing users to quickly determine the three states of the circuit breaker through the colors seen in window 11. Furthermore, the arrangement of latch 4, indicator 5, and trip latch 3 reduces the need for a dedicated fault indicator 5, resulting in a more compact structure and smaller footprint. Moreover, this application utilizes a rigid, planar push mechanism for state transitions, reducing the overall thickness of the indicator structure, making the transmission relationship more reliable, lowering the failure rate of the transmission structure, and enabling faster circuit breaker state switching, allowing users to quickly ascertain the circuit breaker's status. Additionally, the locking relationship between latch 4 and trip latch 3, along with the hook-shaped part 41 and the push area 54, achieves mechanical locking of trip latch 3, latch 4, and indicator 5 in different states, preventing erroneous displays.

[0042] This application discloses circuit breakers in its embodiments. For example... Figures 1 to 3 As shown, the circuit breaker includes a housing 1, the aforementioned circuit breaker status indicator structure, and a handle 2. The housing 1 is provided with a window 11, through which the user can observe the latch 4, trip latch 3, or indicator 5, thereby determining whether the circuit breaker is in the closed, open, or tripped state. The circuit breaker status indicator structure is located inside the housing 1. The handle 2 is rotatably connected to the housing 1 and is used to control the opening and closing of the circuit breaker.

[0043] The housing 1 is equipped with a magnetic tripping system and a thermal tripping system, which are used to drive the trip latch 3 and the locking latch 4 to act in the event of a fault, so that the moving contact and the stationary contact are separated. The above is the prior art, and will not be described in detail here.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A circuit breaker status indicating structure, characterized by: The device comprises a color-different snap buckle (3), a lock buckle (4) and an indicating piece (5), the snap buckle (3) and the lock buckle (4) are both rotatably connected inside the shell (1) and are driven to move by the handle (2) when the switch is closed or opened, the indicating piece (5) is slidably fitted inside the shell (1); In the closed state, the snap buckle (3) is locked with the lock buckle (4), the snap buckle (3) drives the indicating piece (5) to move, so that the indicating piece (5) slides away from below the window (11), and the lock buckle (4) moves to below the window (11) to display the closed state; In the open state, the snap buckle (3) is locked with the lock buckle (4), the lock buckle (4) moves away from below the window (11), and the snap buckle (3) drives the indicating piece (5) to move, so that the indicating piece (5) slides to below the window (11) to display the open state; In the tripped state, the snap buckle (3) is unlocked with the lock buckle (4), the lock buckle (4) moves away from below the window (11), and the snap buckle (3) moves to below the window (11) to display the tripped state.

2. The circuit breaker status indicating structure of claim 1, wherein: The indicating piece (5) is provided with a notch (55), and the lock buckle (4) has a hook-shaped part (41); In the closed state, the hook-shaped part (41) is below the window (11) and is clamped in the notch (55) to complete the locking.

3. The circuit breaker status indicating structure of claim 1, wherein: The lock buckle (4) has a flexible antenna part (42), and the shell (1) is provided with a limiting block (13); When tripping occurs, the antenna part (42) abuts against the limiting block (13) due to the tripping force, so that the lock buckle (4) moves and is unlocked with the snap buckle (3); After tripping is completed, the antenna part (42) is elastically reset, so that the lock buckle (4) is reset to move, so as to make the snap buckle (3) be locked with the lock buckle (4) again in the subsequent process.

4. The circuit breaker status indicating structure of claim 3, wherein: The indicating piece (5) has a pushing area (54) for the snap buckle (3) to move and embed; In the closed state and the open state, the snap buckle (3) pushes the indicating piece (5) to move through the side wall of the pushing area (54).

5. The circuit breaker status indicating structure of claim 4, wherein: The snap buckle (3) is drivingly connected to the handle (2) through a linkage rod (21), and the handle (2) and the shell (1) are jointly connected with a torsional spring (22); When tripping occurs, the torsional spring (22) returns to the natural state and promotes the handle (2) to rotate and reset, and the handle (2) drives the snap buckle (3) to move away from the pushing area (54) through the linkage rod (21).

6. The circuit breaker status indicating structure of claim 5, wherein: When tripping occurs, the handle (2) drives the snap buckle (3) to first rotate forward and then rotate backward through the linkage rod (21), the snap buckle (3) is separated from the pushing area (54) after rotating forward, and the snap buckle (3) is locked with the lock buckle (4) again and is located directly below the pushing area (54) after rotating backward.

7. The circuit breaker status indicating structure of claim 6, wherein: The indicating piece (5) is not located on the movement track of the snap buckle (3) from the closed state to the tripped state.

8. The circuit breaker status indicating structure of claim 7, wherein: The indicating piece (5) has a flexible part (52), and the flexible part (52) is located at one end of the pushing area (54); When the tripped state is converted into the closed state, the snap buckle (3) moves to press the flexible part (52), the flexible part (52) is deformed, and after the snap buckle (3) rotates away from the flexible part (52), the flexible part (52) is elastically reset, and at this time, the snap buckle (3) is located in the pushing area (54).

9. The circuit breaker status indicating structure of claim 1, wherein: The jump buckle (3) has an arc-shaped abutting part (32) for pushing the indicating part (5) to move, and the arc-shaped abutting part (32) is tangent to the indicating part (5) in the rotating process.

10. A circuit breaker characterized by: Comprise: A shell (1) having a window (11); The circuit breaker state indicating structure according to any one of claims 1-9 is arranged in the shell (1); A handle (2) rotatably connected to the shell (1) and used for controlling opening and closing.

Citation Information

Patent Citations

  • Tripping indication structure of circuit breaker and circuit breaker

    CN220821442U

Cited By

  • Tripping indicator and circuit breaker thereof

    CN121964439A