Circuit breaker

Abstract

The utility model provides a circuit breaker which comprises a circuit breaker shell, an operating mechanism, a rotating shaft, a moving contact and a static contact, the operating mechanism, the rotating shaft, the moving contact and the static contact are arranged in the circuit breaker shell, the operating mechanism is connected with the rotating shaft, the moving contact is installed on the rotating shaft, the operating mechanism drives the rotating shaft to rotate, and the rotating shaft drives the moving contact to be in contact with or separated from the static contact. A state indication module is further arranged in the circuit breaker shell, the state indication module comprises a state indication shell, a driving end and an indication end, the driving end and the indication end extend out of the state indication shell, the driving end corresponds to the rotating shaft, and the rotating shaft can drive the driving end when rotating to drive the moving contact to be in contact with or separated from the static contact. The driving end drives the indicating end to act to indicate the state of the circuit breaker, so that the accuracy of state indication of the circuit breaker is effectively ensured.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical appliances, specifically to a circuit breaker. Background Technology

[0002] The circuit breaker has a status display function. When the circuit breaker is closed, the status display indicator is red, and when the circuit breaker is open, the status display indicator is green. However, when the isolation function of the circuit breaker has a time deviation or other reasons, the circuit breaker handle may be erroneously operated in the open state, causing the status display indicator to be displayed as green (open). This can mislead the judgment of personnel when inspecting, maintaining or replacing electrical equipment, and may pose a risk to personal safety and significant property loss.

[0003] In addition, the status display structure in the existing technology is installed as a component inside the circuit breaker, which is inconvenient to install and disassemble, and affects the assembly efficiency of the circuit breaker. Utility Model Content

[0004] The purpose of this invention is to overcome at least one of the defects of the prior art and to provide a circuit breaker.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This application provides a circuit breaker, including a circuit breaker housing, and an operating mechanism, a rotating shaft, a moving contact, and a stationary contact disposed within the circuit breaker housing. The operating mechanism is connected to the rotating shaft, and the moving contact is mounted on the rotating shaft. The operating mechanism drives the rotating shaft to rotate, and the rotating shaft causes the moving contact to contact or separate from the stationary contact.

[0007] The circuit breaker housing is also provided with a status indication module. The status indication module includes a status indication housing and a drive end and an indication end extending out of the status indication housing. The drive end corresponds to the rotating shaft. When the rotating shaft rotates and drives the moving contact to contact or separate from the stationary contact, it can drive the drive end. The drive end drives the indication end to act in order to indicate the status of the circuit breaker.

[0008] In one possible implementation, the status indicator module includes an indicator and a reset spring. The indicator is rotatably or linearly movable and includes an indicator end and a drive end. The indicator end includes an indicator portion, and the reset spring is connected between the indicator and the status indicator housing.

[0009] In one possible implementation, the status indication module includes an indicator, a reset spring, and a first linkage. The first linkage is connected between the indicator and a rotating shaft, and the reset spring is connected between the indicator and the status indication housing. The first linkage includes a driving end, and the indicator includes an indicating end, which includes an indicating portion. The first linkage is linearly movable, and the indicator is rotatably arranged. The rotating shaft drives the first linkage to reciprocate along a straight line, and the first linkage drives the indicator to oscillate back and forth.

[0010] In one possible implementation, the first linkage reciprocates along a first direction, and the axis of rotation of the indicator is perpendicular to the first direction.

[0011] In one possible implementation, when the rotating shaft drives the moving contact to contact the stationary contact, the return spring drives the indicator to swing to a first position, and there is a rotational interval between the rotating shaft and the driving end; the rotating shaft drives the moving contact to separate from the stationary contact and move to the open position, and the rotating shaft drives the driving end to drive the indicator to swing to a second position.

[0012] In one possible implementation, the indicator includes a connecting rod that extends at least partially out of the status indicator housing and a connecting plate that is at least partially located inside the status indicator housing. One end of the connecting rod is connected to the indicator portion, and the other end is connected to the connecting plate. The connecting plate includes a first notch and a central portion located inside the status indicator housing. The central portion is located on one side of the first notch, and the first linkage portion is located within the first notch.

[0013] In one possible implementation, the first notch includes a flat plate support portion that is bent and connected to the central axis portion. One side of the flat plate support portion is connected to the first linkage member, and the other side abuts against the status indicator housing.

[0014] In one possible implementation, the status indication module further includes a first elastic element disposed between the first linkage element and the indication element.

[0015] In one possible implementation, the first linkage includes a limiting block located inside the status indicator housing and a drive plate located outside the status indicator housing. The limiting block is connected to the drive plate, which includes the drive end. The thickness of the drive plate is less than the thickness of the limiting block, and a limiting step is formed at the connection between the drive plate and the limiting block to limit the status indicator housing.

[0016] In one possible implementation, the circuit breaker housing further includes a device base and a circuit breaker middle cover that are stacked and overlapped along the thickness direction of the circuit breaker. The operating mechanism, rotating shaft, moving contact, and stationary contact are installed between the device base and the circuit breaker middle cover. A first accessory groove is provided on the side of the circuit breaker middle cover away from the device base. A first through hole is provided in the first accessory groove. The status indication module is installed in the first accessory groove. The drive end passes through the first through hole and is correspondingly arranged with the rotating shaft.

[0017] In one possible implementation, the circuit breaker includes an electrically operated device, which includes an electrically operated assembly and an electrically operated device housing. The circuit breaker housing further includes an electrically operated device housing. The electrically operated assembly is mounted above the circuit breaker inner cover, located between the circuit breaker inner cover and the electrically operated device housing. A handle connected to an operating mechanism extends out of the circuit breaker inner cover, and the electrically operated assembly is capable of driving the handle to swing. The electrically operated device housing has an indicator area, and an indicator portion on the indicator end passes through the electrically operated assembly and corresponds to the indicator area.

[0018] In one possible implementation, the electrically operated assembly includes a rotatable turntable, a slider, and a slide rail for limiting and guiding the slider; a cam is provided on the turntable, the slider includes a slider driven groove and a slider driven groove, the cam drives and engages with the slider driven groove, a handle is inserted into the slider driven groove, the turntable rotates and drives the slider to slide back and forth along the slide rail through the cam, and the slider drives the handle to swing through the slider driven groove, so as to open or close the circuit breaker.

[0019] In one possible implementation, the turntable includes a turntable indicator located between the indicator area and the turntable indicator.

[0020] In one possible implementation, the circuit breaker is provided with an indicator area that cooperates with the indicator, the indicator area including a display window;

[0021] When the indicator moves to the first position, the indicator part obscures the display window; when the indicator moves to the second position, the indicator part is offset from the display window.

[0022] Alternatively, the indicator may include at least a first indicator mark and a second indicator mark, wherein when the indicator moves to a first position, the first indicator mark corresponds to the position of the display window; and when the indicator moves to a second position, the second indicator mark corresponds to the position of the display window.

[0023] In one possible implementation, the status indicator housing includes a status indicator base and a status indicator cover. The status indicator base includes a first strip-shaped through hole. The status indicator cover includes a first linkage mounting groove and an indicator mounting post located on both sides, and a reset spring mounting groove located between the first linkage mounting groove and the indicator mounting post. The reset spring mounting groove includes a second strip-shaped through hole.

[0024] The indicator end extends from the second strip-shaped through hole, and the first linkage part is installed in the first linkage mounting groove; the indicator includes an indicator mounting hole, which is sleeved on the indicator mounting post; the reset spring is installed in the reset spring mounting groove, and the status indicator base is covered on the status indicator cover.

[0025] Compared to existing technologies, by installing a status indication module inside the circuit breaker, the status indication module includes a status indication housing and a drive end and an indication end extending from the housing. The drive end of the status indication module works in conjunction with the circuit breaker's rotating shaft, and the drive end and indication end are linked. When the circuit breaker opens or closes via the rotating shaft, the rotating shaft is linked to the drive end, which in turn drives the indication end to indicate the circuit breaker's open or closed status. This effectively ensures the accuracy of the circuit breaker's status indication and prevents the circuit breaker handle from being mistakenly operated in the open state while the circuit breaker remains in the closed state, misleading the judgment of personnel during maintenance, repair, or replacement of electrical equipment, and causing significant personal safety and property losses. Moreover, the status indication module is modularly installed inside the circuit breaker, making installation flexible, disassembly, and replacement simple, improving the assembly efficiency of the circuit breaker, and making the internal structure of the circuit breaker neat and compact.

[0026] In addition, by placing the status indicator module on one side of the circuit breaker cover, away from the circuit breaker's contact mechanism, the circuit breaker can be installed or replaced without opening its interior, making it safe, convenient, and quick.

[0027] Furthermore, the first linkage reciprocates along the first direction, and the axis of rotation of the indicator is perpendicular to the first direction. This design can reduce the internal space of the circuit breaker, reduce the size of the circuit breaker, and enhance the aesthetics of the circuit breaker.

[0028] Furthermore, the status indication module of this embodiment is applicable to circuit breakers equipped with electrically operated devices. The indicator portion on the indicator end passes through the electrically operated assembly, providing reliable status indication with shaft drive for circuit breakers equipped with electrically operated devices. In particular, the indicator portion can also share a display window with the rotary indicator portion on the rotary table of the electrically operated assembly. Even without the status indication module installed, the status of the circuit breaker can be indicated by the rotary indicator portion. After the status indication module is installed in the first accessory slot, the indicator extends between the display window and the rotary indicator portion, replacing the rotary indicator portion, and the status of the circuit breaker is indicated through the existing display window. Attached Figure Description

[0029] Figure 1 This is a cross-sectional view of the circuit breaker of this utility model when it is in the open state;

[0030] Figure 2 This is a schematic diagram of the structure of the circuit breaker of this utility model;

[0031] Figure 3 This is a schematic diagram of the structure of the circuit breaker after the electric operating device housing is disassembled in the open state of the circuit breaker of this utility model;

[0032] Figure 4 yes Figure 3 The diagram shows the disassembled structure of the circuit breaker's inner cover and electric operating assembly.

[0033] Figure 5 This is a structural diagram of the back of the electric operating component;

[0034] Figure 6 This is a schematic diagram of the circuit breaker after the electric operating device housing has been disassembled in the closed state of the circuit breaker.

[0035] Figure 7 yes Figure 6 A schematic diagram of the structure after removing the electric operating components;

[0036] Figure 8 This is a cross-sectional view of the circuit breaker of this utility model when it is in the closed state;

[0037] Figure 9 This is a schematic diagram of the installation structure of the circuit breaker and status indication module of this utility model;

[0038] Figure 10 This is a schematic diagram of the circuit breaker status indication module of this utility model;

[0039] Figure 11 and Figure 12 This is a schematic diagram of the internal structure of the status indicator module;

[0040] Figure 13This is a schematic diagram of the structure of the indicator, reset spring and first linkage component of this utility model installed on the status indicator cover;

[0041] Figure 14 This is a schematic diagram of the structure of the status indicator cover of this utility model;

[0042] Figure 15 This is a schematic diagram of the structure of the indicator of this utility model;

[0043] The reference numerals in the attached drawings include: rotating shaft 11; display window 12; circuit breaker cover 13; device base 14; first accessory slot 141; first through hole 142; status indicator module 2; status indicator base 221; status indicator cover 222; indicator 3; return spring 4; first linkage 5; indicator part 31; connecting rod 33; connecting plate 34; first notch 341; shaft part 342; rotating shaft protrusion 3421; indicator mounting hole 3422; indicator mounting post 343; first linkage mounting groove 344; return spring mounting groove 345; second strip through hole 346; flat plate support part 3411; elastic element mounting groove 3412; first strip through hole 35; first elastic element 23; return spring mounting part 41; limit block 51; drive plate 52; electric operating device 6; electric operating assembly 61; electric operating device housing 62; turntable 63; slider 64; slide rail 65. Rotation interval 7. Detailed Implementation

[0044] The specific embodiments of this utility model are further described below with reference to the accompanying drawings. The scope of protection of this utility model is not limited to the description of the following embodiments.

[0045] like Figures 1-15 As shown, the circuit breaker includes a circuit breaker housing, and an operating mechanism (not shown in the figure), a rotating shaft 11, a moving contact, and a stationary contact (not shown in the figure) are provided inside the circuit breaker housing. The operating mechanism is connected to the rotating shaft 11, and the moving contact is mounted on the rotating shaft 11. The operating mechanism drives the rotating shaft 11 to rotate, and the rotating shaft 11 causes the moving contact to contact or separate from the stationary contact. This is the prior art in this field.

[0046] Preferred, such as Figure 9-10As shown, one improvement of this application is that a status indication module 2 is further provided inside the circuit breaker housing. The status indication module 2 includes a status indication housing and a drive end and an indication end extending out of the status indication housing. The drive end corresponds to the rotating shaft 11. When the rotating shaft 11 rotates, it drives the drive end when the moving contact contacts or separates from the stationary contact. The indication end is provided with an indication part 31. The drive end drives the indication end to indicate the status of the circuit breaker, which can serve as a prompt or warning. The drive end and the indication end can be integrally formed, directly connected, or connected by transmission. The drive end directly or indirectly drives the indication end.

[0047] By installing a status indicator module 2 inside the circuit breaker, the drive end of the status indicator module 2 cooperates with the rotating shaft of the circuit breaker. When the circuit breaker opens or closes through the rotating shaft, the rotating shaft 11 is linked to the drive end, which drives the indicator end to indicate the opening or closing status of the circuit breaker. This effectively ensures the accuracy of the circuit breaker status indication and avoids the circuit breaker handle being mistakenly operated in the open state while the circuit breaker is still in the closed state, which could mislead the judgment of personnel when inspecting, maintaining, or replacing electrical equipment, causing significant personal safety and property losses.

[0048] In addition, the status indication module 2 is modularly installed inside the circuit breaker, which makes installation flexible, disassembly and replacement simple, improves the assembly efficiency of the circuit breaker, and makes the internal structure of the circuit breaker neat and compact.

[0049] Preferred, such as Figure 9 As shown, the circuit breaker housing also includes a device base 14 and a circuit breaker middle cover 13 stacked together along the thickness direction of the circuit breaker. The operating mechanism, rotating shaft 11, moving contact, and stationary contact are installed between the device base 14 and the circuit breaker middle cover 13. Another improvement of this application is that a first accessory groove 141 is provided on the side of the circuit breaker middle cover 13 away from the device base 14, and a first through hole 142 is provided in the first accessory groove 141. The status indication module 2 is installed in the first accessory groove 141, and the driving end passes through the first through hole 142 and is correspondingly arranged with the rotating shaft 11. By placing the status indication module 2 on one side of the circuit breaker middle cover 13, away from the contact mechanism of the circuit breaker, the circuit breaker can be installed or replaced without opening the inside of the circuit breaker, and it can be installed and replaced while the circuit breaker is energized, which is safe, convenient, and quick.

[0050] Furthermore, such as Figures 2-5As shown, another improvement of this application is that the status indication module is applicable to circuit breakers equipped with electric operating devices. The indicator portion on the indicator end passes through the electric operating assembly, providing a reliable status indication with shaft drive for circuit breakers equipped with electric operating devices. The circuit breaker includes an electric operating device 6, which includes an electric operating assembly 61 and an electric operating device housing 62. The circuit breaker housing also includes the electric operating device housing 62. The electric operating assembly 61 is mounted above the circuit breaker middle cover 13, located between the circuit breaker middle cover 13 and the electric operating device housing 62. A handle connected to the operating mechanism extends out of the circuit breaker middle cover 13, and the electric operating assembly 61 can drive the handle to swing. The electric operating device housing 62 is provided with an indicator area, and the indicator portion 31 on the indicator end passes through the electric operating assembly 61 and corresponds to the indicator area. Of course, as another embodiment, the status indication module is also applicable to circuit breakers without electric operating devices. For example, a cover is provided on the circuit breaker middle cover 13 to cover the first accessory slot 141, and the status indication module can replace the indicator 3 to shorten the length of the indicator end.

[0051] Furthermore, such as Figures 3-5 The electrically operated assembly 61 includes a rotatable turntable 63, a slider 64, and a slide rail 65 for limiting and guiding the slider 64. A cam is provided on the turntable 63. The slider 64 includes a slider driven groove and a slider driven groove. The cam engages with the slider driven groove, and a handle is inserted into the slider driven groove. The turntable 63 rotates and drives the slider 64 to slide back and forth along the slide rail 65 via the cam. The slider 64 drives the handle to swing via the slider driven groove, causing the circuit breaker to open or close. The turntable 63 can be driven by a motor or manually operated by inserting a manual operating component connected to the turntable 63; this is prior art.

[0052] Preferably, in one embodiment, the status indication module includes an indicator 3 and a reset spring 4. The indicator 3 is rotatably or linearly movable. The indicator 3 includes an indicator end and a drive end. The indicator end includes an indicator part 31. The reset spring 4 is connected between the indicator 3 and the status indication housing.

[0053] Preferred, such as Figures 10-12As shown, in a preferred embodiment of this application, the status indication module includes an indicator 3, a reset spring 4, and a first linkage 5. The first linkage 5 is connected between the indicator 3 and the rotating shaft 11, and the reset spring 4 is connected between the indicator 3 and the status indication housing. The first linkage 5 includes a driving end, and the indicator 3 includes an indicating end, the indicating end including an indicating part 31. The first linkage 5 is linearly movable, the indicator 3 is rotatably movable, the rotating shaft 11 drives the first linkage to reciprocate along a straight line, and the first linkage 5 drives the indicator 3 to swing back and forth.

[0054] The reset spring 4 can be a compression spring, a tension spring, a torsion spring, etc. In this embodiment, the reset spring 4 is preferably a compression spring and is located inside the status indicator housing. In other embodiments, the reset spring 4 can also be a tension spring located outside the status indicator housing.

[0055] Furthermore, such as Figure 1 and Figure 8 As shown, the first linkage 5 reciprocates along a first direction, and the axial direction of the rotation axis of the indicator 3 is perpendicular to the first direction, wherein, as... Figure 1 As shown, the first direction is the thickness direction of the circuit breaker, that is... Figure 1 In the vertical direction, the axis of the indicator 3 is perpendicular to the plane of the paper. This design can reduce the internal space of the circuit breaker, reduce the size of the circuit breaker, and enhance the aesthetics of the circuit breaker. Figure 1 This is a schematic diagram of the circuit breaker in the open position; Figure 8 This is a schematic diagram of the circuit breaker in the closed state.

[0056] Preferred, such as Figure 12 and Figure 15 As shown, the indicator 3 includes a connecting rod 33 that extends at least partially out of the status indicator housing and a connecting plate 34 that is at least partially located inside the status indicator housing. One end of the connecting rod 33 is bent and connected to the indicator part 31, and the other end is connected to the connecting plate 34. The connecting plate 34 includes a first notch 341 located inside the status indicator housing and a shaft portion 342. The shaft portion 342 is located on one side of the first notch 341, and the first linkage 5 is partially located within the first notch 341. Further, as... Figure 11 As shown, the status indicator housing includes a first strip-shaped through-hole 35, from which the indicator 3 extends. The length of the first strip-shaped through-hole 35 is greater than the height of the connecting plate 34 of the indicator 3, allowing the connecting plate 34 to swing up and down within the first strip-shaped through-hole 35. In this embodiment of the application, Figure 10 and Figure 11 This is a structural diagram of the status indicator module 2 when the indicator 3 is in the first position. Figure 12This is a schematic diagram of the status indicator module 2 when the indicator 3 is in the second position.

[0057] Furthermore, such as Figure 12 As shown, the connecting plate 34 includes a reset spring mounting part 41, one end of the reset spring 4 is fixed on the reset spring mounting part 41, and the other end abuts against the status indicator housing.

[0058] Furthermore, such as Figure 13 As shown, the first notch 341 includes a flat plate support 3411, which is bent and connected to the shaft 342. One side of the flat plate support 3411 is connected to the first linkage 5, and the other side abuts against the status indicator housing.

[0059] Furthermore, such as Figure 12 As shown, the status indication module 2 further includes a first elastic element 23, which is disposed between the first linkage element 5 and the indicator element 3. This first elastic element 23 acts as a buffer during the opening and closing of the circuit breaker, preventing excessive impact force from damaging the status indication module 2. The first elastic element 23 can be a compression spring, tension spring, torsion spring, or spring, etc. In a preferred embodiment of this application, the first elastic element 23 is a compression spring.

[0060] Furthermore, such as Figure 12 As shown, one end of the first linkage member 5 is open to form an elastic member mounting groove 3412. One end of the first elastic member 23 is connected to the flat plate support 3411, and the other end is located in the elastic member mounting groove 3412. The elastic member mounting groove 3412 is used to limit the installation of the first elastic member 23.

[0061] Preferred, such as Figure 11 and Figure 12 As shown, the first linkage 5 includes a limiting block 51 located inside the status indicator housing and a drive plate 52 located outside the status indicator housing. The limiting block 51 is connected to the drive plate 52, which includes a drive end. The thickness of the drive plate 52 is less than the thickness of the limiting block 51. A limiting step is formed at the connection between the drive plate 52 and the limiting block 51 to limit the status indicator housing. The drive plate 52 of the first linkage 5 extends into the first through hole 142 at the bottom of the circuit breaker cover 13 and connects to the rotating shaft 11. Of course, the structure of the first linkage 5 is not limited to this. For example, the drive plate 52 can be replaced with a drive rod. Any structure that can achieve the same technical effect is within the protection scope of this application.

[0062] Furthermore, such as Figure 12As shown, the sidewall of the limiting block 51 includes multiple protruding ribs, making the cross-section of the limiting block 51 have an "X" shape structure, which can reduce the volume of the limiting block 51, reduce the amount of material used, and save costs; at the same time, this structure can also reduce the friction when the limiting block 51 slides in the status indicator housing, making the sliding smoother.

[0063] Preferred, such as Figures 2-7 As shown, the circuit breaker has an indicator area that cooperates with the indicator part 31, and the indicator area includes a display window 12; the turntable 63 includes a turntable indicator part, and the indicator part 31 of the indicator 3 is located between the indicator area and the turntable indicator part. The display window 12 can be a through-hole structure or covered with a transparent shielding material, such as glass, transparent silicone, or acrylic sheet, for dust prevention. Figure 3 and Figure 4 This is a schematic diagram of the structure when the indicator 3 is in the second position; Figure 6 and Figure 7 This is a schematic diagram of the structure when the indicator 3 is in the first position.

[0064] When the indicator 3 moves to the first position, the indicator part 31 obscures the display window 12 and displays the first indicator mark. When the indicator 3 moves to the second position, the indicator part 31 is offset from the display window 12 or displays the second indicator mark. Even without the status indicator module installed, the status of the circuit breaker can be indicated by the rotary indicator part. The rotary indicator part includes two indication states: when the rotary disk 63 drives the handle to swing to achieve closing, the rotary indicator part rotates with the rotary disk 63 to indicate the closing status of the circuit breaker; when the rotary disk 63 drives the handle to swing to achieve opening, the rotary indicator part rotates with the rotary disk 63 to indicate the opening status of the circuit breaker. This is the prior art in this field, but the rotary indicator part is an indirect indication and may have erroneous display.

[0065] After the status indicator module is installed in the first accessory slot 141, when the indicator 3 is in the first position, the indicator part 31 extends between the display window 12 and the rotary indicator part, replacing the rotary indicator part, and the circuit breaker's closing status is indicated through the existing display window 12; when the indicator 3 is in the second position, the indicator part 31 avoids the display window 12, and the circuit breaker's opening status is indicated through the rotary indicator part, thus improving the accuracy of the indication.

[0066] In other embodiments, the rotary indicator may not be provided. The indicator 31 includes at least a first indicator mark and a second indicator mark. When the indicator 3 moves to the first position, the first indicator mark corresponds to the position of the display window 12. When the indicator 3 moves to the second position, the second indicator mark corresponds to the position of the display window 12. The first indicator mark uses red to indicate the closed state of the circuit breaker, and the second indicator mark uses green to indicate the open state of the circuit breaker.

[0067] In a preferred embodiment of this application, the first position of the indicator 3 corresponds to the closed position of the circuit breaker, and the second position of the indicator 3 corresponds to the open position of the circuit breaker. Alternatively, the first position of the indicator 3 may correspond to the open position of the circuit breaker, and the second position of the indicator 3 may correspond to the closed position of the circuit breaker. In this embodiment, the status indicator module 2 includes two indicator states, which are used to indicate the open or closed state of the circuit breaker, respectively. In other embodiments, at least two indicator states may also include a third indicator state, which corresponds to the tripped state.

[0068] Furthermore, such as Figure 1 and Figure 8 As shown, when the rotating shaft 11 drives the moving contact to contact the stationary contact, the reset spring 4 drives the indicator 3 to swing to the first position, and there is a rotation interval 7 between the rotating shaft 11 and the driving end; the rotating shaft 11 drives the moving contact to separate from the stationary contact and move to the open position, and the rotating shaft 11 drives the driving end to drive the indicator 3 to swing to the second position.

[0069] By setting a rotation interval of 7, the safety of the circuit breaker can be improved. When the circuit breaker's operating mechanism does not operate or does not operate properly, it will always indicate that the circuit breaker is in the closed state, preventing misoperation and electric shock accidents.

[0070] Preferred, such as Figure 11 As shown, the status indicator housing includes a status indicator base 221 and a status indicator cover 222. The indicator 3, the first linkage 5 and the reset spring 4 are mounted on the status indicator base 221, and the status indicator cover 222 covers the status indicator base 221.

[0071] Furthermore, such as Figures 13-15 As shown, the status indicator cover 222 includes a first linkage mounting groove 344 and an indicator mounting post 343 located on both sides, and a reset spring mounting groove 345 located between the first linkage mounting groove 344 and the indicator mounting post 343. The reset spring mounting groove 345 includes a second strip-shaped through hole 346.

[0072] The first linkage 5 is installed in the first linkage mounting groove 344; the rotating shaft portion 342 of the indicator 3 includes an indicator mounting hole 3422, which is sleeved on the indicator mounting post 343 and rotates around the indicator mounting post 343; the return spring 4 is installed in the return spring mounting groove 345. In this embodiment, the return spring mounting portion 41 is a protruding structure located in the second strip-shaped through hole 346, which can avoid the return spring mounting portion 41. Figure 14 This is a structural schematic diagram of the status indicator cover 222; Figure 15 This is a structural schematic diagram of indicator 3; Figure 13 This is a schematic diagram of the structure of the indicator 3, the reset spring 4 and the first linkage 5 installed on the status indicator cover 222.

[0073] Furthermore, such as Figure 12 As shown, the outer peripheral wall of the indicator mounting hole 3422 protrudes along the thickness direction of the indicator 3 towards both sides of the axial part 342, forming a rotating shaft protrusion 3421. The status indicator cover 222 and the status indicator base 221 abut against the rotating shaft protrusion 3421 on both sides of the axial part 342, limiting the indicator 3.

[0074] Alternatively, in other embodiments, the status indicator cover 222 does not have an indicator mounting post 343, and the status indicator housing includes a rotating shaft groove or rotating shaft hole that rotates with the rotating shaft protrusion 3421, with the rotating shaft protrusion 3421 rotatably mounted in the rotating shaft groove or rotating shaft hole.

[0075] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used during use. They are only for ease of description and do not indicate that the device or component referred to must have a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating relative importance.

[0076] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A circuit breaker, comprising a circuit breaker housing, and an operating mechanism, a rotating shaft (11), a moving contact, and a stationary contact disposed within the circuit breaker housing, wherein the operating mechanism is connected to the rotating shaft (11), the moving contact is mounted on the rotating shaft (11), the operating mechanism drives the rotating shaft (11) to rotate, and the rotating shaft (11) causes the moving contact to contact or separate from the stationary contact. Its features are, The circuit breaker housing is also provided with a status indication module. The status indication module includes a status indication housing and a drive end and an indication end extending out of the status indication housing. The drive end corresponds to the rotating shaft (11). When the rotating shaft (11) rotates and drives the moving contact to contact or separate from the stationary contact, it can drive the drive end. The drive end drives the indication end to act in order to indicate the status of the circuit breaker.

2. The circuit breaker according to claim 1, characterized in that, The status indicator module includes an indicator (3) and a reset spring (4). The indicator (3) is rotatably or linearly movable and includes an indicator end and a drive end. The indicator end includes an indicator part (31). The reset spring (4) is connected between the indicator (3) and the status indicator housing.

3. The circuit breaker according to claim 1, characterized in that, The status indication module includes an indicator (3), a reset spring (4), and a first linkage (5). The first linkage (5) is connected between the indicator (3) and the rotating shaft (11). The reset spring (4) is connected between the indicator (3) and the status indication housing. The first linkage (5) includes the driving end, and the indicator (3) includes the indicating end. The indicating end includes an indicating part (31). The first linkage (5) is linearly movable, and the indicator (3) is rotatably movable. The rotating shaft (11) drives the first linkage (5) to reciprocate along a straight line, and the first linkage (5) drives the indicator (3) to swing back and forth.

4. The circuit breaker according to claim 3, characterized in that, The first linkage (5) reciprocates along the first direction, and the axis of rotation of the indicator (3) is perpendicular to the first direction.

5. The circuit breaker according to claim 2 or 3, characterized in that, When the rotating shaft (11) drives the moving contact to contact the stationary contact, the reset spring (4) drives the indicator (3) to swing to the first position, and there is a rotation interval (7) between the rotating shaft (11) and the driving end; the rotating shaft (11) drives the moving contact to separate from the stationary contact and move to the open position, and the rotating shaft (11) drives the driving end to drive the indicator (3) to swing to the second position.

6. The circuit breaker according to claim 3, characterized in that, The indicator (3) includes a connecting rod (33) that extends at least partially out of the status indicator housing and a connecting plate (34) that is at least partially located inside the status indicator housing. One end of the connecting rod (33) is connected to the indicator part (31), and the other end is connected to the connecting plate (34). The connecting plate (34) includes a first notch (341) and a shaft part (342) located inside the status indicator housing. The shaft part (342) is located on one side of the first notch (341), and the first linkage (5) is partially located inside the first notch (341).

7. The circuit breaker according to claim 6, characterized in that, The first notch (341) includes a flat plate support (3411), which is bent and connected to the shaft (342). One side of the flat plate support (3411) is connected to the first linkage (5), and the other side abuts against the status indicator housing.

8. The circuit breaker according to claim 3, characterized in that, The status indication module further includes a first elastic element (23), which is disposed between the first linkage element (5) and the indicator element (3).

9. The circuit breaker according to claim 3, characterized in that, The first linkage (5) includes a limiting block (51) located inside the status indicator housing and a drive plate (52) located outside the status indicator housing. The limiting block (51) is connected to the drive plate (52). The drive plate (52) includes the drive end. The thickness of the drive plate (52) is less than the thickness of the limiting block (51). A limiting step is formed at the connection between the drive plate (52) and the limiting block (51) to limit the status indicator housing.

10. The circuit breaker according to claim 1, characterized in that, The circuit breaker housing also includes a device base (14) and a circuit breaker middle cover (13) that are stacked and covered along the thickness direction of the circuit breaker. The operating mechanism, the rotating shaft (11), the moving contact and the stationary contact are installed between the device base (14) and the circuit breaker middle cover (13). A first accessory groove (141) is provided on the side of the circuit breaker middle cover (13) away from the device base (14). A first through hole (142) is provided in the first accessory groove (141). The status indicator module is installed in the first accessory groove (141). The drive end passes through the first through hole (142) and is correspondingly set with the rotating shaft (11).

11. The circuit breaker according to claim 10, characterized in that, The circuit breaker includes an electric operating device (6), which includes an electric operating assembly (61) and an electric operating device housing (62). The circuit breaker housing also includes the electric operating device housing (62). The electric operating assembly (61) is installed above the circuit breaker middle cover (13) and is located between the circuit breaker middle cover (13) and the electric operating device housing (62). A handle connected to the operating mechanism extends out of the circuit breaker middle cover (13). The electric operating assembly (61) can drive the handle to swing. An indicator area is provided on the electric operating device housing (62), and an indicator part (31) on the indicator end passes through the electric operating assembly (61) and corresponds to the indicator area.

12. The circuit breaker according to claim 11, characterized in that, The electric operating assembly (61) includes a rotating turntable (63), a slider (64), and a slide rail (65) for limiting and guiding the slider (64). A cam is provided on the turntable (63), and the slider (64) includes a slider driven groove and a slider driven groove. The cam drives the slider driven groove, and the handle is inserted into the slider driven groove. The turntable (63) rotates and drives the slider (64) to slide back and forth along the slide rail (65) through the cam. The slider (64) drives the handle to swing through the slider driven groove, so that the circuit breaker is opened or closed.

13. The circuit breaker according to claim 12, characterized in that, The turntable (63) includes a turntable indicator, the indicator (31) being located between the indicator area and the turntable indicator.

14. The circuit breaker according to claim 2 or 3, characterized in that, The circuit breaker is provided with an indicator area that cooperates with the indicator part (31), and the indicator area includes a display window (12). When the indicator (3) moves to the first position, the indicator part (31) blocks the display window (12); when the indicator (3) moves to the second position, the indicator part (31) and the display window (12) are offset. Alternatively, the indicator (31) may include at least a first indicator mark and a second indicator mark. When the indicator (3) moves to the first position, the first indicator mark corresponds to the position of the display window (12); when the indicator (3) moves to the second position, the second indicator mark corresponds to the position of the display window (12).

15. The circuit breaker according to claim 3, characterized in that, The status indicator housing includes a status indicator base (221) and a status indicator cover (222). The status indicator base (221) includes a first strip-shaped through hole (35). The status indicator cover (222) includes a first linkage mounting groove (344) and an indicator mounting post (343) located on both sides, and a reset spring mounting groove (345) located between the first linkage mounting groove (344) and the indicator mounting post (343). The reset spring mounting groove (345) includes a second strip-shaped through hole (346). The indicator end extends from the second strip-shaped through hole (346), and the first linkage (5) is partially installed in the first linkage mounting groove (344); the indicator (3) includes an indicator mounting hole (3422), which is sleeved on the indicator mounting post (343); the reset spring (4) is installed in the reset spring mounting groove (345), and the status indicator base (221) covers the status indicator cover (222).

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