Intelligent circuit breaker and opening and closing control structure thereof

Abstract

The utility model provides an intelligent circuit breaker and an opening and closing control structure thereof, and relates to the technical field of circuit breakers, the opening and closing control structure comprises an electric operation shell, a handle gear, a transmission shaft, a circuit breaker handle and an elastic piece, and the electric operation shell is provided with a first mounting part; the handle gear is rotatably mounted on the first mounting part; the transmission shaft is mounted on the handle gear and can rotate along with the handle gear; the circuit breaker handle and the transmission shaft are installed in a matched mode, the circuit breaker handle and the transmission shaft rotate synchronously, the circuit breaker can be driven to be switched off or switched on, the elastic piece comprises a first end and a second end, the first end is connected with the electric operation shell, the second end is connected with the handle gear, and the elastic piece provides elastic force so that the handle gear can be automatically reset to the initial position after circuit breaker operation is completed. Due to the elastic force effect of the elastic piece, automatic resetting of the handle gear is achieved, normal meshing of the handle gear in the mechanism transmission process each time is guaranteed, and therefore the service life of a product is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of circuit breakers, in particular to an intelligent circuit breaker and a switching control structure thereof. BACKGROUND

[0002] The intelligent circuit breaker can autonomously complete complex tasks such as automatic switching, timing switching, etc., thereby reducing the burden on the staff and improving the safety and reliability of the system. With the development of the intelligentization of the power system, the demand for the intelligent circuit breaker is increasing, and the reliability requirement for the intelligent circuit breaker is also increasing. However, during the switching process of the intelligent circuit breaker, the handle gear in the electric operation structure often fails to reset to the bottom, resulting in gear meshing jamming and unable to normally transmit, thereby reducing the service life.

[0003] Therefore, it is urgent to provide an intelligent circuit breaker and a switching control structure thereof, so that the handle gear can be reliably reset, and the normal meshing of the handle gear during the transmission of the mechanism is ensured, thereby improving the service life of the product. CONTENT OF THE INVENTION

[0004] The present application provides an intelligent circuit breaker and a switching control structure thereof, to solve the problem of gear meshing jamming and unable to normally transmit, and to realize the reliable reset of the handle gear, thereby ensuring the normal meshing of the handle gear during the transmission of the mechanism and improving the service life of the product.

[0005] In a first aspect, the present application provides a switching control structure of an intelligent circuit breaker, comprising: an electric operation shell, a first mounting portion is arranged on the electric operation shell; a handle gear, rotatably mounted on the first mounting portion; a transmission shaft, mounted on the handle gear and capable of rotating with the handle gear; a circuit breaker handle, cooperatively mounted with the transmission shaft and synchronously rotating with the transmission shaft, capable of driving the circuit breaker to open or close, the handle gear being at a first position when the circuit breaker is open, and the handle gear being at a second position when the circuit breaker is closed; and an elastic member, comprising a first end and a second end, the first end being connected with the electric operation shell, and the second end being connected with the handle gear, the handle gear being reset under the elastic force of the elastic member.

[0006] By the above scheme, the electric operation shell serves as a support structure of the entire device, and the first mounting portion is arranged on the electric operation shell and used for mounting the handle gear. The handle gear is rotatably mounted on the first mounting portion and cooperates with the transmission shaft to realize rotation. The position change of the handle gear corresponds to the open and close states of the circuit breaker. The handle gear is mounted on the handle gear and can rotate with the rotation of the handle gear. The transmission shaft is a key component connecting the handle gear and the circuit breaker handle. The circuit breaker handle is mounted in cooperation with the transmission shaft and rotates synchronously to drive the opening or closing operation of the circuit breaker. The elastic member includes a first end and a second end, the first end is connected with the electric operation shell, and the second end is connected with the handle gear. The elastic member provides elastic force, so that the handle gear can automatically reset to the initial position after the operation of the circuit breaker is completed. The design of the opening and closing control structure considers the automation and convenience of the operation of the circuit breaker. Through the elastic force of the elastic member, the automatic reset of the handle gear is realized, manual intervention is reduced, and the operation efficiency and safety are improved. The design of the elastic member can make the handle gear reliably reset, ensure the normal engagement of the handle gear in each mechanism transmission process, and thus improve the service life of the product.

[0007] In a possible design, the handle gear has a connecting body portion and an engagement portion, the connecting body portion is provided with a force receiving column, and the second end is fixedly connected with the force receiving column.

[0008] By the above scheme, the connecting body portion is the main part of the handle gear, which is responsible for connecting with the electric operation shell and connecting with the second end of the torsional spring through the force receiving column. The force receiving column is a structural feature on the connecting body portion, which serves as a fixed connection point for the second end of the torsional spring. The design of the force receiving column on the connecting body portion can consider the torque and force applied by the torsional spring, ensuring the reliability and durability during the reset process. The engagement portion is used for engaging with the transmission shaft to realize force transmission. When the circuit breaker is opened or closed, the rotation of the handle gear will be transmitted to the transmission shaft through the engagement portion, and then the circuit breaker handle will be driven to perform the corresponding operation. The second end of the torsional spring is fixedly connected with the force receiving column. When the operation of the circuit breaker is completed, the elastic force of the torsional spring will act on the handle gear to reset it to the initial position. The elastic force of the torsional spring is proportional to the rotation angle of the handle gear and the torsion angle of the torsional spring. The design of the force receiving column connected with the second end can better control the stress of the handle gear, ensuring that the handle gear can be accurately and quickly reset after operation.

[0009] In a possible design, the elastic member is a torsional spring, the torsional spring has a spiral body portion and first and second torsional arms located at both ends of the spiral body portion, the spiral body portion is sleeved on the first mounting portion or the connecting body portion, the first torsional arm is connected with the electric operation shell, and the second torsional arm is connected with the force receiving column. The torsional force of the torsional spring pushes the handle gear to the first position.

[0010] By the above scheme, the torsional spring works by bearing torsional force, when one end of the torsional spring is fixed and the other end is subjected to rotational force, the torsional spring will be twisted around the central axis. Therefore, the torsional spring is used as a elastic element, the helical main body part can store and release torsional energy, the helical main body part is sleeved on the first mounting part or the connecting main body part, the first torsion arm is connected with the electric operation shell to ensure that one end of the torsional spring is fixed, to provide a stable support point for the torsional spring, the second torsion arm is connected with the force receiving column, so that the torsional force of the torsional spring can be transmitted to the force receiving column of the handle gear, when the circuit breaker operation is completed, the torsional force of the torsional spring acts on the force receiving column through the second torsion arm, to push the handle gear to reset to the first position (i.e. the open position). The torsional force of the torsional spring corresponds to the position change of the handle gear, when the handle gear rotates to the closed position, the torsional spring is twisted and stores energy; when the circuit breaker is opened, the torsional spring releases energy to push the handle gear back to the first position.

[0011] In a possible design, the first torsion arm and the second torsion arm have a preset angle, the first torsion arm abuts against the electric operation shell, and the second torsion arm abuts against the force receiving column, the force receiving column pushes the handle gear to the first position under the action of the second torsion arm.

[0012] By the above scheme, the preset angle between the first torsion arm and the second torsion arm is determined in advance during design, and the angle determines the initial state of the torsional spring when it is not subjected to force, and the torsional range of the torsional spring during operation. The first torsion arm abuts against the electric operation shell, which fixes one end of the torsional spring and provides a stable support point for the torsional spring, and is also the starting point of the torsional force of the torsional spring. The second torsion arm abuts against the force receiving column, which enables the torsional force of the torsional spring to act directly on the force receiving column, and then push the handle gear. The force receiving column pushes the handle gear to the first position (open position) under the action of the second torsion arm. This design uses the elastic force of the torsional spring to realize the automatic reset of the handle gear. When the circuit breaker performs the closing operation, the handle gear rotates, the torsional spring is twisted and stores energy. After the operation is completed, the torsional spring releases energy to push the handle gear back to the first position through the second torsion arm and the force receiving column, to realize the automatic reset.

[0013] In a possible design, a clamping part is arranged on the electric operation shell corresponding to the position of the first torsion arm, and the clamping part is used to limit the first torsion arm on the electric operation shell.

[0014] The main function of the clamping part is to fix the first torsion arm of the torsion spring and prevent it from moving or rotating during operation, ensuring the stability and reliability of the torsion spring. The clamping part can be a protrusion, a groove or other shaped structure on the electric operation shell, specially designed to match the shape and size of the first torsion arm. The design of the clamping part needs to consider the elasticity and strength of the torsion spring material to ensure that it does not deform or break during long-term operation. The clamping part is arranged on the electric operation shell at a position corresponding to the location of the first torsion arm, which ensures that the first torsion arm has a clear fixed point on the electric operation shell. By setting the clamping part on the electric operation shell to limit the first torsion arm of the torsion spring, the stability and operation accuracy of the entire opening and closing control structure can be improved, and the service life of the torsion spring can also be prolonged.

[0015] In a possible design, the elastic member is a tension spring, which has a spring body and a first pin end and a second pin end at both ends of the spring body, the first pin end is fixed on the electric operation shell, and the second pin end of the tension spring is connected with the force receiving column, and the tension of the tension spring pulls the handle gear to the first position.

[0016] Through the above scheme, the spring body is used to store and release the tension energy. The first pin end is fixed on the electric operation shell to provide a stable anchor point for the tension spring. The second pin end is connected with the force receiving column to transmit the tension of the tension spring to the handle gear. The tension of the tension spring acts on the force receiving column through the second pin end to push the handle gear to move to the first position (i.e. the opening position). When the circuit breaker is closed, the handle gear rotates, the tension spring is stretched and stores energy; when the circuit breaker is opened, the tension spring releases energy and pulls the handle gear back to the first position, realizing automatic reset. This design enables the handle gear to automatically reset after the closing operation of the circuit breaker, reducing manual intervention and improving the convenience and safety of operation.

[0017] In a possible design, the circuit breaker further comprises a tripping mechanism, and the tripping mechanism comprises a tripping linkage, and the circuit breaker handle is connected to the tripping mechanism through the tripping linkage.

[0018] Through the above scheme, the main function of the tripping mechanism is to automatically cut off the power under certain conditions to protect the equipment and avoid accidents. The tripping linkage is a mechanical component that connects the circuit breaker handle and the tripping mechanism. When the handle is operated to open the circuit, the tripping linkage transmits the operating force of the handle to the tripping mechanism to realize the opening action of the circuit breaker. The circuit breaker handle is connected to the tripping mechanism through the tripping linkage, and when the handle is operated to open the circuit, the action of the handle is transmitted to the tripping mechanism through the tripping linkage, causing the tripping mechanism to release and causing the contacts of the circuit breaker to separate, thereby opening the circuit. The design of the tripping mechanism and the tripping linkage can ensure that the circuit is quickly cut off in abnormal conditions to protect the safety of the circuit and the equipment.

[0019] In a possible design, the power source is fixed in the electric operation shell, and the power source has a power output shaft; the gear transmission mechanism is installed on the electric operation shell and is connected with the power output shaft, and the gear transmission mechanism includes a drive gear having incomplete teeth, and the incomplete teeth of the drive gear are engaged with the handle gear.

[0020] By the above scheme, the power source is fixed in the electric operation shell to ensure stability and compactness, while reducing the influence of the external environment on the power source. The power source has a power output shaft, which is an intermediary for transmitting the power generated by the power source to the gear transmission mechanism. The gear transmission mechanism is installed on the electric operation shell and is connected with the power output shaft, and is responsible for converting the power of the power source into torque and rotating speed suitable for the operation of the handle gear. The gear transmission mechanism includes a drive gear, which is a gear directly engaged with the handle gear. The drive gear is designed as incomplete teeth, which can allow the handle gear to engage with the drive gear in a specific operation stage, and can be disengaged in other stages, so as to realize precise control. The incomplete teeth of the drive gear are engaged with the handle gear, which can transmit power when needed, and can naturally disengage the gear due to the incomplete number of teeth when power transmission is not needed, thereby avoiding unnecessary energy consumption and wear. When the circuit breaker needs to be closed, the power source drives the gear transmission mechanism through the power output shaft, the incomplete teeth of the drive gear are engaged with the handle gear, and the closing operation is realized. After the operation of the circuit breaker is completed, the handle gear is automatically reset to the initial position by the action force of the elastic element such as a tension spring or a torsion spring.

[0021] In a possible design, the signal switch is further provided with a rocking rod, the rocking rod is connected with the handle gear, and is used for monitoring the displacement information of the handle gear; and the elastic force of the elastic element is greater than the action force of the rocking rod on the handle gear.

[0022] By the above scheme, the signal switch is a device for indicating the handle gear position, usually a mechanical or electronic switch. The rocker is part of the signal switch, which is connected with the handle gear, when the handle gear moves, the rocker also swings, thereby changing the state of the signal switch. The rocker is directly connected with the handle gear, for real-time monitoring of the displacement information of the handle gear. When the handle gear moves during operation, the swing of the rocker can transmit the position change of the handle gear, thereby providing feedback about the state of the circuit breaker. The elastic member (such as compression spring, tension spring or torsion spring) provides a reset force to ensure that the handle gear can return to the initial position after operation is completed. The elastic force of the elastic member is designed to be greater than the force of the rocker on the handle gear, so that even in the case that the handle gear is pushed by the force of the rocker, the elastic member can pull it back to the initial position. This design realizes accurate monitoring and automatic reset of the handle gear position by combining the signal switch, the rocker and the elastic member, and improves the operation automation level and reliability of the intelligent circuit breaker.

[0023] In a second aspect, the present application provides an intelligent circuit breaker comprising the opening and closing control structure of any of the above intelligent circuit breakers.

[0024] The intelligent circuit breaker provided in the above second aspect and each possible design of the above second aspect has the beneficial effects of the first aspect and each possible implementation of the first aspect, which will not be repeated here.

[0025] The above description is only a summary of the technical solutions of the embodiments of the present application, in order to more clearly understand the technical means of the embodiments of the present application, and can be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the embodiments of the present application more obvious and easy to understand, the following will describe the specific embodiments of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0027] Figure 1 The schematic diagram of the intelligent circuit breaker with the opening and closing control structure provided in an embodiment of the present application.

[0028] Figure 2 The schematic diagram of the split structure of the Figure 1

[0029] Figure 3 ​A schematic view of the opening and closing control structure from the circuit breaker to the electric operating shell is provided in an embodiment of the present application.

[0030] Figure 4 A schematic view of the opening and closing control structure from the electric operating shell to the circuit breaker is provided in an embodiment of the present application.

[0031] Figure 5 A schematic view of the elastic member and the handle gear is provided in an embodiment of the present application. Figure 4 A schematic view from another perspective.

[0032] Figure 6 A schematic view of the elastic member and the handle gear is provided in an embodiment of the present application.

[0033] Explanation of reference signs:

[0034] 100, electric operating shell; 101, PCBA board; 102, first mounting portion; 103, signal switch; 110, power source; 120, power output shaft; 130, gear transmission mechanism; 131, drive gear; 140, handle gear; 141, connection main body portion; 142, meshing portion; 143, force receiving column; 150, transmission shaft; 200, circuit breaker portion; 210, circuit breaker handle; 220, tripping mechanism; 300, elastic member; 301, first end; 302, second end. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification of the present application and the description of the drawings are intended to cover non-exclusive inclusion.

[0037] Reference to "an embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. Those of ordinary skill in the art will realize and understand, upon reading this description, that the embodiments described herein are illustrative of the application and are not intended to be limiting.

[0038] The term "and / or", merely describes association relationship of associated objects, and means that three relationships can exist, for example, A and / or B can mean that A exists, A and B exist, and B exists. In addition, the character " / " herein generally means that the front and rear associated objects are in an "or" relationship.

[0039] The orientation words appearing in the following description are the directions shown in the drawings, and do not limit the specific structure of the opening and closing control structure of the application. For example, in the description of the application, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0040] In addition, the terms "first", "second", and the like in the specification and claims of the application or the above drawings are used to distinguish different objects, and are not used to describe a specific order, and can explicitly or implicitly include one or more of the features.

[0041] In the description of the application, unless otherwise specified, the meaning of "a plurality of" is two or more (including two), and similarly, "a plurality of groups" means two or more groups (including two groups).

[0042] In the description of the application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", and "connection" should be understood broadly, for example, the "connection" or "connection" of mechanical structures can mean physical connection, for example, the physical connection can be fixed connection, for example, fixed connection through a spacer, for example, fixed connection through screws, bolts or other spacers; the physical connection can also be detachable connection, for example, mutual clamping or clamping connection; the physical connection can also be integrally connected, for example, welding, bonding or integrally formed connection. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0043] As can be seen from the background technology, during the opening and closing process of current intelligent circuit breakers, the handle gear in the electric control structure often fails to return to the bottom, causing gear engagement to become stuck, preventing normal transmission and reducing service life.

[0044] Analysis reveals two possible causes of reset problems in smart circuit breakers. The first is that the handle gear rotates within the control housing, driving the relay handle to close. When the circuit breaker opens, the circuit breaker handle drives the handle gear in the opposite direction. Due to potential synchronization differences between the various linkages between the handle gear and the circuit breaker handle, the handle gear may fail to reset properly. The second is that the smart circuit breaker contains a PCBA board with a signal switch indicating the handle gear's position. This signal switch has a rocker arm; when the handle gear rotates, it generates a force on the rocker arm, causing it to swing to the signal position, allowing the signal switch to monitor the gear's displacement. However, this rocker arm also generates a corresponding force on the handle gear, making it difficult for the handle gear to reset.

[0045] In view of this, this application provides an intelligent circuit breaker and its opening and closing control structure. An elastic element is provided in the electric operating housing. The elastic element includes a first end and a second end. The first end is connected to the electric operating housing, and the second end is connected to the handle gear. The elastic element provides elastic force, enabling the handle gear to automatically reset to its initial position after the circuit breaker operation is completed. The design of the opening and closing control structure considers the automation and convenience of circuit breaker operation. Through the elastic force of the elastic element, the automatic and reliable reset of the handle gear is achieved, ensuring normal meshing of the handle gear during each transmission process, thereby improving the product's service life.

[0046] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0047] Figure 1 This is a schematic diagram of an intelligent circuit breaker with a switching control structure provided in this embodiment. Figure 2 for Figure 1 A schematic diagram of the split structure. Figure 3 This is a schematic diagram of the opening and closing control structure provided in this embodiment, from the circuit breaker toward the electrical control housing 100. Figure 4 This is a schematic diagram of the opening and closing control structure from the electrical control housing 100 toward the circuit breaker, as provided in this embodiment. Please refer to... Figure 1 , Figure 2 , Figure 3 and Figure 4The opening and closing control structure of the intelligent circuit breaker provided by the embodiment comprises an electric operation shell 100, a handle gear 140, a transmission shaft 150, a circuit breaker handle 210 and an elastic member 300.

[0048] As shown in Figure 1 and Figure 2 , the intelligent circuit breaker comprises the electric operation shell 100 and the circuit breaker part 200, and the electric operation shell 100 and the circuit breaker part 200 are arranged in the axial direction of the transmission shaft 150.

[0049] The electric operation shell 100 serves as a support structure of the opening and closing control structure, and a first mounting part 102 is arranged on the electric operation shell 100 for mounting the handle gear 140.

[0050] As shown in Figure 3 and Figure 4 , the opening and closing control structure in the embodiment further comprises a power source 110 and a gear transmission mechanism 130, the power source 110 is fixed in the electric operation shell 100, and the power source 110 is provided with a power output shaft 120; the gear transmission mechanism 130 is mounted on the electric operation shell 100 and is connected with the power output shaft 120 in a matched mode, and the gear transmission mechanism 130 comprises a drive gear 131, the drive gear 131 is provided with incomplete teeth, and the incomplete teeth of the drive gear 131 are engaged with the handle gear 140.

[0051] The power source 110 is fixed in the electric operation shell 100 to ensure stability and compactness and reduce the influence of the external environment on the power source 110. The power source 110 is provided with the power output shaft 120, and the power output shaft 120 is an intermediate link for transmitting the power generated by the power source 110 to the gear transmission mechanism 130. The gear transmission mechanism 130 is mounted on the electric operation shell 100 and is connected with the power output shaft 120 in a matched mode, and is responsible for converting the power of the power source 110 into torque and rotating speed suitable for the operation of the handle gear 140. The gear transmission mechanism 130 comprises the drive gear 131, and the drive gear 131 is a gear directly engaged with the handle gear 140.

[0052] The drive gear 131 can be designed as incomplete teeth, the handle gear 140 is engaged with the drive gear 131, and the engagement can be released in other stages, so as to realize accurate control. The incomplete teeth of the drive gear 131 are engaged with the handle gear 140, and the power can be transmitted when needed, and the gear can be naturally released due to the incomplete number of teeth when the power transmission is not needed, so as to avoid unnecessary energy consumption and wear. When the circuit breaker needs to be closed, the power source 110 drives the gear transmission mechanism 130 through the power output shaft 120, the incomplete teeth of the drive gear 131 are engaged with the handle gear 140, and the closing operation is realized. After the operation of the circuit breaker is completed, the handle gear 140 is automatically reset to the initial position by the force of the elastic member 300 such as a tension spring or a torsion spring.

[0053] Depend on Figure 3 As shown, the tripping control structure in this embodiment includes a tripping mechanism 220, which comprises a tripping linkage rod. The circuit breaker handle 210 trips the circuit breaker via the tripping linkage rod. The main function of the tripping mechanism 220 is to automatically cut off the power supply under specific conditions to protect equipment and prevent accidents. The tripping linkage rod is a mechanical component connecting the circuit breaker handle 210 and the tripping mechanism 220. When the handle is operated to trip, the tripping linkage rod transmits the operating force of the handle to the tripping mechanism 220, thereby achieving the tripping action of the circuit breaker. The circuit breaker handle 210 is connected to the tripping mechanism 220 via the tripping linkage rod. When tripping is required, the action of operating the circuit breaker handle 210 is transmitted to the tripping mechanism 220 via the tripping linkage rod, causing the tripping mechanism 220 to release, thus separating the contacts of the circuit breaker and achieving tripping. The design of the tripping mechanism 220 and the tripping linkage rod ensures that the circuit can be quickly cut off in abnormal situations, protecting the safety of the circuit and equipment.

[0054] Please refer to Figure 5 In this embodiment, the main body 141 and the first mounting part 102 are hinged.

[0055] Figure 6 This is a schematic diagram of the elastic element and handle gear provided in one embodiment of this application. Please refer to the reference. Figure 6 The handle gear 140 includes a connecting body 141 and a meshing part 142. The connecting body 141 is the main part of the handle gear 140, and it is responsible for connecting to the electric control housing 100. The meshing part 142 is used to mesh with the drive shaft 150 to realize the transmission of force. When the circuit breaker is opened or closed, the rotation of the handle gear 140 is transmitted to the drive shaft 150 through the meshing part 142, thereby driving the circuit breaker handle 210 to perform the corresponding operation.

[0056] In this embodiment, the drive shaft 150 has a triangular cross-section and can be made of metal. In other embodiments, the cross-section of the drive shaft can be quadrilateral, hexagonal, or other polygonal.

[0057] In this embodiment, the handle gear 140 can be a gear with incomplete teeth, which can not only reduce weight but also save material costs. When power needs to be restored to the user, the toothed part of the handle gear 140 meshes with the drive gear 131 and is driven to rotate by the drive gear 131. When it is necessary to enable the user to control the opening and closing of the circuit breaker independently, the toothless part of the drive gear 131 rotates to be opposite to the handle gear 140. At this time, the toothless part of the handle gear 140 is also opposite to the drive gear 131, and the rotation between the two no longer affects each other. Therefore, the circuit breaker handle 210 can be manually operated to realize the free opening and closing of the circuit breaker.

[0058] In some embodiments, the handle gear 140 can also be a sector gear, which improves the stability of the handle gear 140 when rotating. The handle gear 140 is mounted on the edge of the electric control housing 100, and the portion without meshing teeth is located close to the inner wall of the first housing. The advantage of this design is that it can make full use of the internal space of the first housing.

[0059] In this embodiment, the drive shaft 150 is mounted on the handle gear 140 and can rotate with the handle gear 140.

[0060] The circuit breaker handle 210 is installed in conjunction with the drive shaft 150 and rotates synchronously with the drive shaft 150, which can drive the circuit breaker handle 210 to open or close. When the circuit breaker handle 210 is open, the handle gear 140 is in the first position, and when the circuit breaker is closed, the handle gear 140 is in the second position.

[0061] like Figures 3 to 6 The handle gear 140 shown represents the position of the circuit breaker handle 210 when it is open, i.e., as shown... Figures 3 to 6 The handle gear 140 shown is in the first position.

[0062] The position change of the handle gear 140 corresponds to the opening and closing states of the circuit breaker. The drive shaft 150 is mounted on the handle gear 140 and rotates in tandem with it. The drive shaft 150 is a key component connecting the handle gear 140 and the circuit breaker handle 210. The circuit breaker handle 210 is installed in conjunction with the drive shaft 150 and rotates synchronously to drive the circuit breaker's opening or closing operation.

[0063] The elastic element 300 includes a first end 301 and a second end 302. The first end 301 is connected to the electric control housing 100, and the second end 302 is connected to the handle gear 140. It can be understood that the first position is the initial position of the circuit breaker handle 210. Because of misalignment between different levels of linkage devices or other external forces, the handle gear 140 may not return to its initial position after the circuit breaker operation is completed and the circuit breaker is opened. This can prevent the handle gear 140 from properly meshing with other related mechanisms, or even cause it to jam. Therefore, the opening and closing control structure is equipped with an elastic element 300 that provides elasticity, allowing the handle gear 140 to automatically return to its initial position after the circuit breaker operation is completed. The design of the opening and closing control structure considers the automation and convenience of circuit breaker operation. Through the elastic force of the elastic element 300, the automatic reset of the handle gear 140 is achieved, reducing manual intervention and improving operational efficiency and safety. The elastic element 300 ensures the normal meshing of the handle gear 140 during each mechanism transmission process, thereby improving the product's service life.

[0064] Please refer to the reference. Figure 6The force receiving column 143 is arranged on the connecting body 141, and the second end 302 is fixedly connected with the force receiving column 143.

[0065] The force receiving column 143 is a structural feature arranged on the connecting body 141, and can serve as a fixed connection point of the second end 302 of the elastic element 300.

[0066] In this embodiment, the force receiving column 143 is arranged on the connecting body 141 and protrudes relative to the plane of the connecting body. The force receiving column 143 can have a cylindrical or prismatic profile. The force receiving column 143 is designed on the connecting body 141 to take into account the force exerted by the elastic element 300, thereby ensuring the reliability and durability during the resetting process.

[0067] Please continue to refer to Figure 5 and Figure 6 In this embodiment, the elastic element 300 can be a torsion spring, which has a spiral body and a first torsion arm (first end 301) and a second torsion arm (second end 302) arranged at the two ends of the spiral body, respectively. The spiral body sleeve can be arranged on the first mounting portion 102 or the connecting body 141. The first torsion arm is connected with the electric operating shell 100, and the second torsion arm is connected with the force receiving column 143. The torsion force of the torsion spring pushes the handle gear 140 to the first position.

[0068] The torsion spring works by bearing torsion force. When one end of the torsion spring is fixed and the other end is subjected to a rotating force, the torsion spring will twist around its central axis. Therefore, the torsion spring is used as the elastic element 300, the spiral body of which can store and release torsion energy. The spiral body sleeve is arranged on the first mounting portion 102 or the connecting body 141. The first torsion arm is connected with the electric operating shell 100 to ensure that one end of the torsion spring is fixed, thereby providing a stable support point for the torsion spring. The second torsion arm is connected with the force receiving column 143, so that the torsion force of the torsion spring can be transmitted to the force receiving column 143 of the handle gear 140. After the operation of the circuit breaker is completed, the torsion force of the torsion spring acts on the force receiving column 143 through the second torsion arm, thereby pushing the handle gear 140 to reset to the first position (i.e., the open position). The torsion force of the torsion spring corresponds to the change in the position of the handle gear 140. When the handle gear 140 rotates to the closed position, the torsion spring is twisted and stores energy. When the circuit breaker is opened, the torsion spring releases energy and pushes the handle gear 140 back to the first position.

[0069] In this embodiment, the second torsion arm is fixedly connected with the force receiving column 143. After the operation of the circuit breaker is completed, the elastic force of the torsion spring acts on the handle gear 140, thereby resetting it to the initial position. The elastic force of the torsion spring is proportional to the rotation angle of the handle gear 140 and the torsion angle of the torsion spring. The design of the connection between the force receiving column 143 and the second torsion arm allows better control of the force acting on the handle gear 140, thereby ensuring that the handle gear 140 can be accurately and quickly reset after operation.

[0070] In some embodiments, the first torsion arm and the second torsion arm have a preset angle, the first torsion arm abuts against the electric operation shell 100, and the second torsion arm abuts against the force receiving column 143, which pushes the handle gear 140 to the first position under the action of the second torsion arm.

[0071] The preset angle between the first torsion arm and the second torsion arm is determined in the design, which determines the initial state of the torsion spring when it is not under stress and the torsion range of the torsion spring during operation. The first torsion arm abuts against the electric operation shell 100, which fixes one end of the torsion spring and provides a stable support point for the torsion spring, and is also the starting point of the torsion force. The second torsion arm abuts against the force receiving column 143, which allows the torsion force of the torsion spring to directly act on the force receiving column 143, thereby pushing the handle gear 140. The force receiving column 143 pushes the handle gear 140 to the first position (the open position) under the action of the second torsion arm. This design uses the elastic force of the torsion spring to achieve automatic reset of the handle gear 140. When the circuit breaker performs the closing operation, the handle gear 140 rotates, the torsion spring is twisted and stores energy. After the operation is completed, the torsion spring releases energy, pushes the handle gear 140 back to the first position through the second torsion arm and the force receiving column 143, and realizes automatic reset.

[0072] In a possible design, a clamping part is arranged on the electric operation shell 100 corresponding to the position of the first torsion arm, and the clamping part is used to limit the first torsion arm on the electric operation shell 100, and the clamping part is also the stress position of the torsion spring on the electric operation shell 100.

[0073] Through the above scheme, the main function of the clamping part is to fix the first torsion arm of the torsion spring and prevent it from moving or rotating during operation, so as to ensure the stability and reliability of the torsion spring. The clamping part can be a protrusion, a groove or other shaped structure on the electric operation shell 100, which is specially designed to match the shape and size of the first torsion arm. The design of the clamping part needs to consider the elasticity and strength of the torsion spring material to ensure that it will not deform or be damaged in long-term operation. The clamping part is arranged on the electric operation shell 100 corresponding to the position of the first torsion arm, so that the first torsion arm has a clear fixed point on the electric operation shell 100. By arranging the clamping part on the electric operation shell 100 to limit the first torsion arm of the torsion spring, the stability and operation accuracy of the entire opening and closing control structure can be improved, and the service life of the torsion spring can also be prolonged.

[0074] In some embodiments, the elastic member 300 can be a tension spring, which has a spring body part and first and second pin ends at both ends of the spring body part, respectively. The first pin end is fixed on the electric operation shell 100, and the second pin end of the tension spring is connected with the force receiving column 143. The tension of the tension spring pulls the handle gear 140 to the first position.

[0075] The spring body is used to store and release the tension energy. The first pin end is fixed on the electric operating shell 100, providing a stable anchoring point for the tension spring. The second pin end is connected with the force column 143, transmitting the tension of the tension spring to the handle gear 140. The tension of the tension spring acts on the force column 143 through the second pin end, pushing the handle gear 140 to move to the first position (i.e. the open position). When the circuit breaker is closed, the handle gear 140 rotates, the tension spring is stretched and stores energy; when the circuit breaker is opened, the tension spring releases energy and pulls the handle gear 140 back to the first position, realizing automatic reset. This design enables the handle gear 140 to automatically reset after the closing operation of the circuit breaker, reducing manual intervention and improving the convenience and safety of operation.

[0076] In some embodiments, the elastic member 300 can also be a compression spring. When the compression spring is arranged, the first pin end of the compression spring can be arranged at an appropriate position of the electric operating shell 100, and the second pin end abuts against the handle gear 140, thereby providing a resettable force to the handle gear 140.

[0077] Please refer to Figure 4 The opening and closing control structure in the embodiment can further include a signal switch 103 for indicating the position of the handle gear 140. The signal switch 103 is provided with a rocking lever, the rocking lever is connected with the handle gear 140, and is used to monitor the displacement information of the handle gear 140. The elastic force of the elastic member 300 is greater than the force of the rocking lever acting on the handle gear 140.

[0078] The signal switch 103 used for indicating the stroke of the handle gear 140 can be a mechanical or electronic switch. The signal switch 103 can be fixed on the PCBA board 101. It can be understood that in the closing and opening control structure, multiple signal switches 103 can be provided, of which one is used for indicating the position of the handle gear 140. The rocker is a part of the signal switch 103, which is connected with the handle gear 140. When the handle gear 140 moves, the rocker also swings, thereby changing the state of the signal switch 103. The rocker is directly connected with the handle gear 140, and is used for monitoring the displacement information of the handle gear 140 in real time. When the handle gear 140 moves in the operation process, the swing of the rocker can transmit the position change of the handle gear 140, thereby providing feedback about the state of the circuit breaker. The elastic member 300 (such as a compression spring, a tension spring or a torsion spring) provides a reset force, which ensures that the handle gear 140 can return to the initial position after the operation is completed. The elastic force of the elastic member 300 is designed to be greater than the force of the rocker on the handle gear 140, so that even in the case that the handle gear 140 is pushed by the force of the rocker, the elastic member 300 can pull it back to the initial position. This design realizes accurate monitoring and automatic reset of the position of the handle gear 140 by combining the signal switch 103, the rocker and the elastic member 300, and improves the operation automation level and reliability of the intelligent circuit breaker.

[0079] Based on the above embodiments, the application further provides an intelligent circuit breaker comprising any of the above closing and opening control structures.

[0080] Since the closing and opening control structure and its beneficial effects have been described in detail in the foregoing embodiments, the application will not be repeated here.

[0081] The above embodiments are only used to illustrate the technical solutions of the application, rather than limit them. Although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the application.

Claims

1. A switching control structure of an intelligent circuit breaker, characterized by, The utility model relates to a kind of switchgear, including: Electric operating shell is provided with first mounting portion on the electric operating shell; Handle gear, rotatably mounted on the first mounting portion; Transmission shaft, installed on the handle gear, can follow the handle gear rotation; Breaker handle, with the transmission shaft cooperation installation, and with the transmission shaft synchronous rotation, can drive the breaker handle open or close, the handle gear is in first position when the breaker handle is opened, the handle gear is in second position when the breaker is closed; Elastic member, including first end and second end, the first end is connected with the electric operating shell, the second end is connected with the handle gear, the handle gear resets under the elastic force of the elastic member.

2. The opening and closing control structure according to claim 1, characterized in that, The handle gear includes connection main body part and meshing part, the first end is fixedly connected with the force column on the connection main body part.

3. The opening and closing control structure according to claim 2, characterized in that, The elastic member is torsion spring, the torsion spring has helical main body part and first torsion arm and second torsion arm located at both ends of the helical main body part respectively, the helical main body part is sleeved on the first mounting portion or the connection main body part, the first torsion arm is connected with the electric operating shell, the second torsion arm is connected with the force column, and the torsion force of the torsion spring pushes the handle gear to the first position.

4. The opening and closing control structure according to claim 3, characterized in that, The first torsion arm and second torsion arm have a preset angle, the first torsion arm is abutted on the electric operating shell, the second torsion arm is abutted with the force column, and the force column pushes the handle gear to the first position under the action force of the second torsion arm.

5. The opening and closing control structure according to claim 4, characterized in that, The electric operating shell is provided with clamping portion corresponding to the first torsion arm, and the clamping portion is used to limit the first torsion arm on the electric operating shell.

6. The opening and closing control structure according to claim 2, characterized in that, The elastic member is tension spring, the tension spring has spring body part and first pin end and second pin end located at both ends of the spring body part respectively, the first pin end is fixed on the electric operating shell, the second pin end of the tension spring is connected with the force column, and the tension of the tension spring pulls the handle gear to the first position.

7. The opening and closing control structure according to claim 1, characterized in that, Further including: Tripping mechanism, the tripping mechanism includes tripping linkage rod, and the breaker handle is opened through the tripping linkage rod.

8. The opening and closing control structure according to claim 7, characterized in that, Further including power source and gear transmission mechanism, The power source is fixed in the electric operating shell, and the power source has power output shaft; The gear transmission mechanism is installed on the electric operating shell and is connected with the power output shaft, and the gear transmission mechanism includes driving gear, and the driving gear has incomplete tooth, and the incomplete tooth of the driving gear is engaged with the handle gear.

9. The opening and closing control structure according to claim 1, characterized in that, Further including: Signal switch, the signal switch is provided with rocking lever, the rocking lever is connected with the handle gear, and is used for monitoring the displacement information of the handle gear; The elastic force of the elastic member is greater than the force of the rocking lever to the handle gear.

10. An intelligent circuit breaker comprising: The utility model relates to a kind of switchgear, including: Electric operating shell is provided with first mounting portion on the electric operating shell; Handle gear, rotatably mounted on the first mounting portion; Transmission shaft, installed on the handle gear, can follow the handle gear rotation; Breaker handle, with the transmission shaft cooperation installation, and with the transmission shaft synchronous rotation, can drive the breaker handle open or close, the handle gear is in first position when the breaker handle is opened, the handle gear is in second position when the breaker is closed; Elastic member, including first end and second end, the first end is connected with the electric operating shell, the second end is connected with the handle gear, the handle gear resets under the elastic force of the elastic member.

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