A circuit breaker

Abstract

The application relates to the technical field of circuit breakers, in particular to a circuit breaker. The circuit breaker comprises a circuit breaker shell, a button, an electric mechanism, a transmission mechanism, a rotating plate structure and an operating mechanism; the circuit breaker shell is formed by butt joint of a first shell and a second shell, and one side of the circuit breaker shell is provided with a first through hole; one end of the button is slidably arranged in the circuit breaker shell through the first through hole; the electric mechanism is fixed in the circuit breaker shell; the transmission mechanism is arranged in the circuit breaker shell and is respectively in transmission connection with the button and the electric mechanism; the operating mechanism is movably arranged in the circuit breaker shell and is suitable for controlling circuit breaker closing / opening; the rotating plate structure is arranged in the circuit breaker shell, is rotatably connected with a first connecting column and a second connecting column and is respectively connected with the transmission mechanism and the operating mechanism. The circuit breaker provided by the application simplifies the structure, reduces the material cost, effectively reduces the failure rate and improves the transmission stability.

Description

Technical Field

[0001] This invention relates to the field of circuit breaker technology, and more specifically to a circuit breaker. Background Technology

[0002] A circuit breaker is a switching device that can connect and disconnect not only normal load current and overload current, but also short-circuit current. In addition to its control function, a circuit breaker also provides certain protection functions, such as overload, short-circuit, undervoltage, and leakage protection. Circuit breakers can achieve automatic and manual opening and closing. Existing circuit breakers are driven by electric mechanisms or buttons, with a transmission gear driving a sector gear, which in turn drives the operating mechanism to achieve automatic and manual opening and closing. However, the excessive number of gear meshing points when the transmission gear meshes with the sector gear increases the failure rate, and once a fault occurs, it is difficult to repair. Furthermore, the sector gear requires high precision, making its manufacturing complex and costly. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the prior art, which has too many gear meshing connection points, increases the failure rate, and is difficult to repair once a failure occurs. Thus, the present invention provides a circuit breaker that simplifies the structure, reduces material costs, effectively reduces the failure rate, and improves transmission stability.

[0004] To address the aforementioned problems, this invention provides a circuit breaker, comprising a circuit breaker housing, a push button, an electric actuator, a transmission mechanism, a rotating plate structure, and an operating mechanism. The circuit breaker housing is formed by the mating of a first housing and a second housing, with a first through hole on one side of the housing. A first connecting post protrudes from the interior of the first housing, and a second connecting post protrudes from the interior of the second housing, with the positions of the first and second connecting posts corresponding. One end of the push button is slidably disposed within the circuit breaker housing through the first through hole. The electric actuator is fixed within the circuit breaker housing. The transmission mechanism is disposed within the circuit breaker housing and is respectively connected to the push button and the electric actuator. The operating mechanism is movably disposed within the circuit breaker housing and is adapted to control the closing / opening of the circuit breaker. The rotating plate structure is rotatably connected within the circuit breaker housing and is respectively connected to the transmission mechanism and the operating mechanism.

[0005] The circuit breaker provided by the present invention has a transmission mechanism including a first link, a rotating plate, and a second link; one end of the first link is rotatably connected to an operating mechanism; the first end of the rotating plate is rotatably connected to both the first connecting post and the second connecting post, and the second end is rotatably connected to the other end of the first link; one end of the second link is rotatably connected to the third end of the rotating plate, and the other end is respectively connected to a button and an electric mechanism.

[0006] The circuit breaker provided by the present invention further includes a circuit board, wherein a first through hole is provided on the circuit board, and the first connecting post passes through the first through hole and is rotatably connected to the rotating plate.

[0007] The circuit breaker provided by the present invention has a first connecting hole on the first connecting post, a second connecting hole on the second connecting post, a third connecting hole at the first end of the rotating plate, one end of the pin connecting to the first connecting hole, and the other end rotatably passing through the third connecting hole and connecting to the second connecting hole.

[0008] The circuit breaker provided by the present invention has a triangular distribution of the first, second and third ends of the rotating plate.

[0009] The circuit breaker provided by this invention has a triangular plate as the rotating plate.

[0010] The circuit breaker provided by the present invention has a limiting post protruding from the inside of the first housing, and a clearance part is provided on the side of the second end of the rotating plate, and the clearance part is rotatably engaged with the limiting post.

[0011] The circuit breaker provided by the present invention has a first end and / or a second end and / or a third end that are all smooth transition ends.

[0012] The circuit breaker provided by the present invention includes a transmission mechanism further comprising a first transmission gear, a third connecting rod, and a gear assembly; the first transmission gear is rotatably connected inside the circuit breaker housing and is drive-connected to the other end of the second connecting rod; one end of the third connecting rod is connected to a button, and the other end is connected to the first transmission gear, adapted to drive the first transmission gear to rotate under the action of the button; the gear assembly is drive-connected to the first transmission gear and to the drive shaft of the electric mechanism, adapted to drive the first transmission gear to rotate under the action of the electric mechanism.

[0013] The circuit breaker provided by the present invention further includes a first boss and a second boss; the first boss is fixedly connected to the end face of the first transmission gear, one end of which is coaxially arranged with the first transmission gear; the other end is rotatably connected to one end of the second connecting rod; the second boss is fixedly connected to the end face of the first boss facing away from the first transmission gear, one end of which is coaxially arranged with one end of the first boss; the other end is located in the middle position of the first boss and is rotatably connected to the end of the third connecting rod away from the button.

[0014] The present invention has the following advantages:

[0015] 1. The circuit breaker provided by the present invention includes a circuit breaker housing, a push button, an electric mechanism, a transmission mechanism, a rotating plate structure, and an operating mechanism; the circuit breaker housing is formed by the mating of a first housing and a second housing, and a first through hole is provided on one side of the circuit breaker housing; a first connecting post protrudes from the interior of the first housing, and a second connecting post protrudes from the interior of the second housing, the positions of the first connecting post and the second connecting post being corresponding; one end of the push button is slidably disposed within the circuit breaker housing through the first through hole; the electric mechanism is fixed within the circuit breaker housing; the transmission mechanism is disposed within the circuit breaker housing and is respectively connected to the push button and the electric mechanism for transmission; the operating mechanism is movably disposed within the circuit breaker housing and is suitable for controlling the closing / opening of the circuit breaker; the rotating plate structure is rotatably connected within the circuit breaker housing and is respectively connected to the transmission mechanism and the operating mechanism.

[0016] The moving contact of the circuit breaker is connected to the operating mechanism, and the stationary contact works in conjunction with the moving contact. The push button drives the rotating plate structure to rotate via a drive transmission mechanism, causing the operating mechanism to bring the moving contact into contact with the stationary contact, thus manually closing the circuit breaker. Alternatively, the push button drives the rotating plate structure to rotate via a drive transmission mechanism, causing the operating mechanism to separate the moving contact from the stationary contact, thus manually opening the circuit breaker. Or, the electric mechanism drives the rotating plate structure to rotate via a drive transmission mechanism, causing the operating mechanism to bring the moving contact into contact with the stationary contact, thus automatically closing the circuit breaker. The electric mechanism also drives the rotating plate structure to rotate via a drive transmission mechanism, causing the operating mechanism to separate the moving contact from the stationary contact, thus automatically opening the circuit breaker. This simplifies the internal structure of the circuit breaker, reduces material costs, effectively reduces the failure rate, and improves transmission stability. The first and second connecting posts allow the rotating plate structure to be suspended and fixed in a corresponding position within the circuit breaker housing, facilitating rotation, preventing friction between the rotating plate structure and the first and second housings, and facilitating connection to the transmission mechanism and the operating mechanism respectively.

[0017] 2. The circuit breaker provided by the present invention has a transmission mechanism including a first connecting rod, a rotating plate, and a second connecting rod; one end of the first connecting rod is rotatably connected to an operating mechanism; the first end of the rotating plate is rotatably connected to both the first connecting post and the second connecting post, and the second end is rotatably connected to the other end of the first connecting rod; one end of the second connecting rod is rotatably connected to the third end of the rotating plate, and the other end is respectively connected to a button and an electric mechanism.

[0018] The first end of the rotating plate is rotatably connected to the circuit breaker housing to prevent the position of the rotating plate relative to the circuit breaker housing from shifting when the second link drives the rotating plate to rotate.

[0019] A button or electric mechanism drives the second link to rotate the rotating plate. Driven by the rotating plate, the first link drives the operating mechanism to rotate relative to the circuit breaker housing, thereby driving the circuit breaker to close or open.

[0020] 3. The circuit breaker provided by the present invention has a triangular distribution of the first, second and third ends of the rotating plate.

[0021] The connection positions of the first link and the rotating plate, the connection position of the rotating plate and the circuit breaker housing, and the connection position of the second link and the rotating plate are staggered to ensure that the second link can drive the rotating plate to rotate under the drive of the button or the electric mechanism, and the rotation of the rotating plate can drive the first link to rotate. The first link drives the operating mechanism to rotate relative to the circuit breaker housing, thereby realizing the closing or opening of the circuit breaker.

[0022] 4. The circuit breaker provided by the present invention has a triangular plate as the rotating plate, which makes the structural layout more reasonable. When the third end of the rotating plate is driven, since the first end is rotatably connected to the circuit breaker housing, the second end will inevitably move accordingly due to the movement of the third end. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 A partial structural schematic diagram of the circuit breaker of the present invention is shown from a first perspective;

[0025] Figure 2 A partial structural schematic diagram of the circuit breaker of the present invention is shown from a second perspective;

[0026] Figure 3 A first-view structural schematic diagram showing the connection relationship between the button, electric mechanism and part of the transmission mechanism of the present invention is shown.

[0027] Figure 4 A second-view structural schematic diagram showing the connection relationship between the button, electric mechanism and part of the transmission mechanism of the present invention is shown.

[0028] Figure 5 A schematic diagram showing the connection relationship between the first transmission gear, the first boss, the second boss, the second connecting rod, and the third connecting rod of the present invention is shown.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Circuit breaker housing; 2. Button; 3. Electric mechanism; 31. Helical gear; 41. First transmission gear; 42. Third link; 431. Second link; 432. Rotating plate; 433. First link; 51. Second transmission gear; 511. First gear; 512. Second gear; 52. Third transmission gear; 521. Third gear; 522. Fourth gear; 6. Operating mechanism; 61. First connecting buckle; 62. Second connecting buckle; 63. Locking buckle; 7. First boss; 8. Second boss; 9. Moving contact; 10. Stationary contact; 11. First connecting post; 12. Circuit board; 13. Limiting post; 14. Third connecting hole. Detailed Implementation

[0031] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] like Figures 1 to 5As shown, this embodiment provides a circuit breaker, including a circuit breaker housing 1, a button 2, an electric mechanism 3, a transmission mechanism, a rotating plate 432 structure, and an operating mechanism 6. The circuit breaker housing 1 is formed by the mating of a first housing and a second housing, and a first through hole is provided on one side of the circuit breaker housing 1. A first connecting post 11 protrudes from the inside of the first housing, and a second connecting post protrudes from the inside of the second housing, with the positions of the first connecting post 11 and the second connecting post corresponding. One end of the button 2 is slidably disposed inside the circuit breaker housing 1 through the first through hole. The electric mechanism 3 is fixed inside the circuit breaker housing 1. The transmission mechanism is disposed inside the circuit breaker housing 1 and is respectively connected to the button 2 and the electric mechanism 3 for transmission. The operating mechanism 6 is movably disposed inside the circuit breaker housing 1 and is suitable for controlling the closing / opening of the circuit breaker. The rotating plate 432 structure is rotatably connected inside the circuit breaker housing 1 and is respectively connected to the transmission mechanism and the operating mechanism 6.

[0036] The moving contact 9 of the circuit breaker is connected to the operating mechanism 6, and the stationary contact 10 works in conjunction with the moving contact 9. The push button 2 drives the rotating plate 432 structure to rotate via a drive transmission mechanism, causing the operating mechanism 6 to bring the moving contact 9 into contact with the stationary contact 10, thus achieving manual closing of the circuit breaker. Alternatively, the push button 2 drives the rotating plate 432 structure to rotate via a drive transmission mechanism, causing the operating mechanism 6 to bring the moving contact 9 into contact with the stationary contact 10, thus achieving manual opening of the circuit breaker. Or, the electric mechanism 3 drives the rotating plate 432 structure to rotate via a drive transmission mechanism, causing the operating mechanism 6 to bring the moving contact 9 into contact with the stationary contact 10, thus achieving automatic closing of the circuit breaker. The electric mechanism 3 also drives the rotating plate 432 structure to rotate via a drive transmission mechanism, causing the operating mechanism 6 to bring the moving contact 9 into contact with the stationary contact 10, thus achieving automatic opening of the circuit breaker. This simplifies the internal structure of the circuit breaker, reduces material costs, effectively reduces the failure rate, and improves transmission stability. The first connecting column 11 and the second connecting column can suspend and fix the rotating plate 432 structure in the corresponding position inside the circuit breaker housing 1, which is convenient for rotation, avoids friction between the rotating plate 432 structure and the first and second housings, and facilitates connection with the transmission mechanism and the operating mechanism 6 respectively.

[0037] In this embodiment, the circuit breaker's transmission mechanism includes a first connecting rod 433, a rotating plate 432, and a second connecting rod 431. One end of the first connecting rod 433 is rotatably connected to the operating mechanism 6. The first end of the rotating plate 432 is rotatably connected to both the first connecting post 11 and the second connecting post, and the second end is rotatably connected to the other end of the first connecting rod 433. One end of the second connecting rod 431 is rotatably connected to the third end of the rotating plate 432, and the other end is respectively connected to the button 2 and the electric mechanism 3.

[0038] The first end of the rotating plate 432 is rotatably connected to the circuit breaker housing 1 to prevent the position of the rotating plate 432 relative to the circuit breaker housing 1 from shifting when the second link 431 drives the rotating plate 432 to rotate.

[0039] Button 2 or electric mechanism 3 drives the second link 431 to rotate the rotating plate 432. Under the drive of the rotating plate 432, the first link 433 drives the operating mechanism 6 to rotate relative to the circuit breaker housing 1, driving the circuit breaker to close or open.

[0040] The circuit breaker in this embodiment also includes a circuit board 12, which has a first through hole. A first connecting post 11 passes through the first through hole and is rotatably connected to the rotating plate 432. The first connecting post 11 can increase the distance between the rotating plate 432 and the circuit board 12, preventing the rotating plate 432 from scratching or abrading the electronic components on the circuit board 12 when it rotates. The first connecting post 11 and the first through hole can also limit the position of the circuit board 12, facilitating the fixing and installation of the circuit board 12.

[0041] In this embodiment of the circuit breaker, the first connecting post 11 is provided with a first connecting hole, the second connecting post is provided with a second connecting hole, the first end of the rotating plate 432 is provided with a third connecting hole 14, one end of the pin is connected to the first connecting hole, and the other end rotatably passes through the third connecting hole 14 and is connected to the second connecting hole.

[0042] In this embodiment, the circuit breaker has a triangular distribution at the first, second, and third ends of the rotating plate 432.

[0043] In a specific implementation, the connection positions of the first link 433 and the rotating plate 432, the connection position of the rotating plate 432 and the circuit breaker housing 1, and the connection position of the second link 431 and the rotating plate 432 are staggered to ensure that the second link 431 can drive the rotating plate 432 to rotate under the drive of the button 2 or the electric mechanism 3, and the rotating plate 432 can drive the first link 433 to rotate when it rotates. The first link 433 drives the operating mechanism 6 to rotate relative to the circuit breaker housing 1 to realize the closing or opening of the circuit breaker.

[0044] In this embodiment, the circuit breaker has a triangular plate as the rotating plate 432, which has a more reasonable structural layout. When the third end of the rotating plate 432 is driven, since the first end is rotatably connected to the circuit breaker housing 1, the second end will inevitably move accordingly due to the movement of the third end.

[0045] In this embodiment of the circuit breaker, a limiting post 13 protrudes from the inside of the first housing, and a second through hole is provided on the circuit board 12. The limiting post 13 passes through the second through hole to prevent the position of the circuit board 12 from shifting relative to the circuit breaker housing 1.

[0046] The second end of the rotating plate 432 has a clearance portion on its side, which rotatably engages with the second end. Since the pivot point of the rotating plate 432 is not at the second end but at the first end when it rotates, the clearance portion rotatably engages with the limiting post 13 when the rotating plate 432 rotates around the first end, preventing the limiting post 13 from restricting small-angle rotations of the rotating plate 432. However, when the rotation angle of the rotating plate 432 is large, the limiting post 13 limits the sidewall between the first and second ends of the triangular plate, preventing the triangular plate from moving along... Figure 1 The rotating plate 432 rotates counterclockwise during transition; the limiting post 13 also limits the sidewall between the second and third ends of the triangular plate, preventing the triangular plate from rotating along the sidewall. Figure 1 The rotating plate 432 shown rotates clockwise during the transition.

[0047] In this embodiment, the circuit breaker has a smooth transition end at the first end and / or the second end and / or the third end.

[0048] During the rotation of the rotating plate 432, it will not interfere with or rub against the circuit breaker housing 1 due to its sharp edges, and it can avoid the inconvenience and damage to the loading and unloading personnel caused by the sharp edges of the surface during the loading and unloading process.

[0049] like Figure 1 As shown, the operating mechanism 6 includes a first connecting buckle 61, a second connecting buckle 62, and a locking buckle 63; the first connecting buckle 61 is rotatably connected to the first connecting rod 433; the second connecting buckle 62 is fixedly connected to the first connecting buckle 61; the locking buckle 63 is rotatably connected to the circuit breaker housing 1 and fixedly connected to the second connecting buckle 62; one end of the moving contact 9 is fixedly connected to the second connecting buckle 62, and the stationary contact 10 is fixedly disposed inside the circuit breaker housing 1; the other end of the moving contact 9 can cooperate with the stationary contact 10 to realize the closing or opening of the circuit breaker. The structure, principle, and working process of the operating mechanism 6 in this embodiment are similar to those of the prior art and will not be described in detail here. Of course, the operating mechanism 6 of the circuit breaker of the present invention can also adopt other structures.

[0050] In this embodiment, the circuit breaker transmission mechanism further includes a first transmission gear 41, a third connecting rod 42, and a gear assembly. The first transmission gear 41 is rotatably connected inside the circuit breaker housing 1 and is driven by the other end of the second connecting rod 431. One end of the third connecting rod 42 is connected to the button 2, and the other end is connected to the first transmission gear 41, which is adapted to drive the first transmission gear 41 to rotate under the action of the button 2. The gear assembly is driven by the first transmission gear 41 and is also driven by the drive shaft of the electric mechanism 3, which is adapted to drive the first transmission gear 41 to rotate under the action of the electric mechanism 3.

[0051] In a specific implementation, when manually opening or closing the circuit breaker, button 2 drives the third link 42 to drive the first transmission gear 41 to rotate relative to the circuit breaker housing 1. Under the drive of the first transmission gear 41, the second link 431 drives the rotating plate 432 to rotate relative to the circuit breaker housing 1. The rotating plate 432 drives the first link 433 to drive the operating mechanism 6 to rotate relative to the circuit breaker housing 1, thereby closing or opening the circuit breaker.

[0052] When the electric mechanism 3 is not powered, it is in a free state and the drive shaft can rotate freely. When the circuit breaker is manually driven to close or open, the gear assembly can rotate freely under the drive of the first transmission gear 41, and the third link 42 can drive the first transmission gear 41 to rotate.

[0053] During automatic opening and closing, the drive shaft of the electric mechanism 3 drives the gear assembly to rotate relative to the circuit breaker housing 1. Under the drive of the gear assembly, the first transmission gear 41 rotates relative to the circuit breaker housing 1. Under the drive of the first transmission gear 41, the second connecting rod 431 drives the rotating plate 432 to rotate relative to the circuit breaker housing 1. The rotating plate 432 drives the first connecting rod 433 to drive the operating mechanism 6 to rotate relative to the circuit breaker housing 1, thereby closing or opening the circuit breaker.

[0054] When automatically closing, the electric mechanism 3 drives the gear assembly to rotate the first transmission gear 41 in the forward direction relative to the circuit breaker housing 1. Under the drive of the first transmission gear 41, the second connecting rod 431 moves the button 2 closer to the circuit breaker housing 1, and the button 2 is in the closed position. When automatically opening, the electric mechanism 3 drives the gear assembly to rotate the first transmission gear 41 in the reverse direction relative to the circuit breaker housing 1. Under the drive of the first transmission gear 41, the second connecting rod 431 moves the button 2 away from the circuit breaker housing 1, and the button 2 is in the open position.

[0055] The circuit breaker in this embodiment further includes a first boss 7 and a second boss 8; the first boss 7 is fixedly connected to the end face of the first transmission gear 41, with one end coaxially arranged with the first transmission gear 41; the other end is rotatably connected to one end of the second connecting rod 431; the second boss 8 is fixedly connected to the end face of the first boss 7 facing away from the first transmission gear 41, with one end coaxially arranged with one end of the first boss 7; the other end is located in the middle position of the first boss 7 and is rotatably connected to the end of the third connecting rod 42 away from the button 2.

[0056] In a specific implementation, the connection position of the third link 42 and the second boss 8 is offset from the rotation axis of the first transmission gear 41, so as to ensure that the third link 42 can drive the first transmission gear 41 to rotate under the drive of the button 2; the connection position of the second link 431 and the first boss 7 is offset from the rotation axis of the first transmission gear 41, so as to ensure that the first transmission gear 41 can drive the third link 42 to rotate when it rotates.

[0057] In this embodiment, the other end of the second boss 8 is located in the middle of the first boss 7. The height of the second boss 8 protruding from the first boss 7 is greater than the height of the second connecting rod 431 protruding from the first boss 7, so as to ensure that the second connecting rod 431 and the third connecting rod 42 do not affect each other when the first transmission gear 41 rotates.

[0058] In this embodiment, the circuit breaker gear assembly includes a second transmission gear 51 and a third transmission gear 52; the second transmission gear 51 is connected to the drive shaft of the electric mechanism 3; the third transmission gear 52 is connected to the second transmission gear 51 and to the first transmission gear 41.

[0059] In this embodiment, the circuit breaker's second transmission gear 51 includes a first gear 511 and a second gear 512 coaxially connected. The diameter of the first gear 511 is larger than the diameter of the second gear 512. The second gear 512 meshes with the third transmission gear 52. The first gear 511 is connected to the drive shaft of the electric mechanism 3. The third transmission gear 52 includes a third gear 521 and a fourth gear 522 coaxially connected. The diameter of the third gear 521 is larger than the diameter of the fourth gear 522. The third gear 521 meshes with the second gear 512, and the fourth gear 522 meshes with the first transmission gear 41.

[0060] In a specific embodiment, both the second transmission gear 51 and the third transmission gear 52 are compound gears. The first gear 511 and the second gear 512 rotate coaxially, and the third gear 521 and the fourth gear 522 rotate coaxially. The plane containing the end face of the third gear 521 is separate from the plane containing the end faces of the first transmission gear 41 and the first gear 511, reducing the frictional force generated by the contact between the end faces when the gears rotate. The tooth surfaces of the first transmission gear 41 and the first gear 511 are spaced apart, with a gap between them, so they do not affect each other during rotation.

[0061] As an alternative implementation, the third transmission gear 52 can be a single-layer gear that meshes with the first transmission gear 41 and the second gear 512. The plane containing the end face of the first gear 511 is separate from the plane containing the end face of the third transmission gear 52, reducing the frictional force generated when the end faces of the gears come into contact during rotation.

[0062] Alternatively, the second transmission gear 51 can be a single-layer gear that meshes with the third gear 521 and is connected to the drive shaft of the drive mechanism.

[0063] As an alternative implementation, both the second transmission gear 51 and the third transmission gear 52 can be single-layer gears, with the third transmission gear 52 meshing with the first transmission gear 41 and also meshing with the second transmission gear 51; the second transmission gear 51 is connected to the drive shaft of the drive mechanism.

[0064] In this embodiment, the circuit breaker has a helical gear 31 on the outer periphery of the drive shaft of the electric mechanism 3, and the helical gear 31 meshes with the first gear 511.

[0065] In a specific implementation, when the helical gear 31 drives the first gear 511 to rotate forward relative to the circuit breaker housing 1, the second gear 512 drives the third gear 521 to rotate in the opposite direction relative to the circuit breaker housing 1, and the fourth gear 522 drives the first transmission gear 41 to rotate forward. The first transmission gear 41 drives the second connecting rod 431 to rotate. Under the drive of the second connecting rod 431, the rotating plate 432 drives the first connecting rod 433 to drive the operating mechanism 6 to rotate relative to the circuit breaker housing 1, thereby closing the circuit breaker. When the helical gear 31 drives the first gear 511 to rotate in the opposite direction relative to the circuit breaker housing 1, the second gear 512 drives the third gear 521 to rotate forward relative to the circuit breaker housing 1, and the fourth gear 522 drives the first transmission gear 41 to rotate in the opposite direction. The first transmission gear 41 drives the second connecting rod 431 to rotate. Under the drive of the second connecting rod 431, the rotating plate 432 drives the first connecting rod 433 to drive the operating mechanism 6 to rotate relative to the circuit breaker housing 1, thereby opening the circuit breaker.

[0066] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A circuit breaker, characterized in that, include: The circuit breaker housing (1) is formed by the docking of a first housing and a second housing. A first through hole is provided on one side of the circuit breaker housing (1). A first connecting post (11) protrudes from the inside of the first housing, and a second connecting post protrudes from the inside of the second housing. The positions of the first connecting post (11) and the second connecting post are corresponding. Button (2), one end of which is slidably disposed inside the circuit breaker housing (1) through the first through hole; The electric mechanism (3) is fixed inside the circuit breaker housing (1); The transmission mechanism is located inside the circuit breaker housing (1) and is connected to the button (2) and the electric mechanism (3) respectively. The operating mechanism (6) is movably disposed within the circuit breaker housing (1) and is suitable for controlling the circuit breaker closing / opening; The rotating plate (432) structure is disposed inside the circuit breaker housing (1), and is rotatably connected to both the first connecting post (11) and the second connecting post, and is respectively connected to the transmission mechanism and the operating mechanism (6); The rotating plate (432) structure includes: The first link (433) is rotatably connected at one end to the operating mechanism (6); The rotating plate (432) has a first end that is rotatably connected to both the first connecting post (11) and the second connecting post, and a second end that is rotatably connected to the other end of the first connecting rod (433). The second link (431) is rotatably connected at one end to the third end of the rotating plate (432), and at the other end is connected to the button (2) and the electric mechanism (3) respectively. The rotating plate (432) is a triangular plate; a limiting post (13) protrudes from the inside of the first housing, and a clearance part is provided on the side of the second end of the rotating plate (432), and the clearance part is rotatably engaged with the limiting post (13); When the rotating plate (432) rotates around the first end, the clearance part and the limiting post (13) rotate in coordination, and the limiting post (13) will not limit the small-angle rotation of the rotating plate (432); the limiting post (13) limits the side wall between the first end and the second end of the triangular plate, or the limiting post (13) limits the side wall between the second end and the third end of the triangular plate, to prevent the triangular plate from rotating excessively.

2. The circuit breaker according to claim 1, characterized in that, It also includes a circuit board (12), on which a first through hole is provided, and the first connecting post (11) passes through the first through hole and is rotatably connected to the rotating plate (432).

3. The circuit breaker according to claim 1, characterized in that, The first connecting post (11) is provided with a first connecting hole, the second connecting post is provided with a second connecting hole, the first end of the rotating plate (432) is provided with a third connecting hole (14), one end of the pin is connected to the first connecting hole, and the other end can rotatably pass through the third connecting hole (14) and connect to the second connecting hole.

4. The circuit breaker according to any one of claims 1-3, characterized in that, The first, second, and third ends of the rotating plate (432) are arranged in a triangular pattern.

5. The circuit breaker according to claim 1, characterized in that, The first end and / or the second end and / or the third end are all smooth transition ends.

6. The circuit breaker according to any one of claims 1-3 or 5, characterized in that, The transmission mechanism also includes: The first transmission gear (41) is rotatably connected inside the circuit breaker housing (1) and is connected to the other end of the second connecting rod (431); The third link (42) is connected at one end to the button (2) and at the other end to the first transmission gear (41), and is adapted to drive the first transmission gear (41) to rotate under the action of the button (2); The gear assembly is connected to the first transmission gear (41) and to the drive shaft of the electric mechanism (3), and is adapted to drive the first transmission gear (41) to rotate under the drive of the electric mechanism (3).

7. The circuit breaker according to claim 6, characterized in that, Also includes: The first boss (7) is fixedly connected to the end face of the first transmission gear (41), with one end coaxially arranged with the first transmission gear (41); the other end is rotatably connected to one end of the second connecting rod (431). The second boss (8) is fixedly connected to the end face of the first boss (7) facing away from the first transmission gear (41). One end is coaxially set with one end of the first boss (7); the other end is located in the middle position of the first boss (7) and is rotatably connected to the end of the third link (42) away from the button (2).

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