An operating module and circuit breaker

Abstract

The application provides an operating module and a circuit breaker, and relates to the technical field of electrical equipment. The operating module comprises a manual operating mechanism and an electric operating mechanism. The manual operating mechanism is used for manually triggering the mechanical switch module to close or open. The electric operating mechanism is used for electrically triggering the mechanical switch module to close or open. During the manual or electric closing process, the manual operating mechanism and the electric operating mechanism are locked with each other, and the manual operating mechanism or the electric operating mechanism drives the mechanical switch module to synchronously move to the closed position. In the closed state, the manual operating mechanism and the electric operating mechanism are separated from each other. During the manual opening process, the manual operating mechanism drives the electric operating mechanism to synchronously move towards the open position. During the electric opening process, the electric operating mechanism drives the mechanical switch module to open, and the manual operating mechanism moves to the open position under the action of the elastic force, so that the operation reliability and adaptability of the circuit breaker are improved.

Description

Technical Field

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

[0002] In existing circuit breaker products, the operating mechanism is usually configured with only a manual or electric operating mechanism to drive the closing and opening actions of the circuit breaker. Although some products integrate both manual and electric operating modules, their structural design often adopts a superimposed layout, that is, the electric and manual operating mechanisms achieve function switching or coordinated operation through an intermediate transmission component.

[0003] This composite structure results in a significant increase in the internal transmission chain and the number of moving parts. It not only occupies a large housing space, but also requires the operating torque to be transmitted through multiple intermediate conversion components during the closing or opening process, which generates additional frictional resistance and action delay, directly limiting the action response speed of the main contacts. Summary of the Invention

[0004] This invention provides an operation module and a circuit breaker with a simple structure that can effectively ensure the closing and opening speed, thereby improving the operational reliability and adaptability of the circuit breaker.

[0005] The embodiments of the present invention can be implemented as follows: In a first aspect, the present invention provides an operating module, including a manual operating mechanism and an electric operating mechanism, wherein the manual operating mechanism is used to manually trigger the mechanical switch module to close or open, and the electric operating mechanism is used to electrically trigger the mechanical switch module to close or open. During manual or electric closing, the manual operating mechanism and the electric operating mechanism are interlocked, and the manual operating mechanism or the electric operating mechanism drives the mechanical switch module to move synchronously to the closing position. When the circuit is closed, the manual operating mechanism and the electric operating mechanism are disengaged. During manual tripping, the manual operating mechanism drives the electric operating mechanism to move synchronously toward the tripping position; during electric tripping, the electric operating mechanism drives the mechanical switch module to trip, and the movement of the electric operating mechanism is independent of the position of the handle of the manual operating mechanism, and the manual operating mechanism follows the electric operating mechanism to the tripping position under the action of elastic force; so that in the tripping state, the manual operating mechanism and the electric operating mechanism are locked together again.

[0006] In an optional embodiment, the operation module further includes a driving component, which is connected to the mechanical switch module in a transmission manner. The manual operation mechanism includes an operating component and a transmission component. The transmission component can be selectively locked or disengaged from the operating component, and the transmission component is in a transmission engagement with the driving component. In the open state, the transmission component and the operating component are interlocked; in the closed state, the transmission component and the operating component are disengaged. During manual closing, the operating component drives the transmission component to move, thereby moving the driving component to the closed state; During manual tripping, the operating component drives the driving component to move to the tripping state.

[0007] In an optional embodiment, the electric operating mechanism includes a driver, and the driving element is disposed at the output end of the driver; The operation module further includes a first reset component, which is disposed on the mounting component and connected to the operation component, for giving the operation component a tendency to move toward the open state; During the electric closing process, the driver drives the transmission component to move, thereby moving the drive component to the closed state; During the electric tripping process, the driver drives the driving component to move to the tripping state, and the first reset component drives the operating component to move to the tripping state.

[0008] In an optional embodiment, the operation module further includes a second reset member, which is disposed on the mounting member and connected to the transmission member, for the transmission member to have a tendency to move toward the open state; When the circuit is closed and the manual operating mechanism and the electric operating mechanism are disengaged, the second reset member drives the transmission member to move to the open state.

[0009] In an optional embodiment, the operating module further includes a clutch and an elastic element, the clutch being movably disposed on the transmission element, and the elastic element being connected to the clutch to give the clutch a tendency to move toward the operating element; In the open state and during the closing process, the clutch is fixedly engaged with the operating element under the action of the elastic element. In the closed state, the clutch disengages from the operating element.

[0010] In an optional embodiment, the operation module further includes an elastic element, the transmission element is provided with a mounting portion, the operation element is provided with a first mating portion, the mounting element is provided with a second mating portion, and the clutch element and the elastic element are both provided in the mounting portion; In the open state and during the closing process, the clutch is fixedly engaged with the first mating part under the action of the elastic member. In the closed state, the clutch abuts against the second mating part to disengage the clutch from the first mating part.

[0011] In an optional embodiment, the second mating part includes a first segment and a second segment connected together. The first segment is inclined. During the closing process, the first segment slides with the clutch to make the clutch gradually move away from the first mating part. In the closed state, the second segment abuts against the clutch to make the clutch disengage from the first mating part.

[0012] In an optional embodiment, the operating member is further provided with a first connecting portion, the transmission member is provided with a second connecting portion, and the driving member is disposed between the first connecting portion and the second connecting portion; During the closing process, the driving component abuts against the second connecting part, and the operating component drives the driving component to move to the closing state through the transmission component; When the circuit is closed, the first connecting part abuts against the driving component; During the tripping process, the driver drives the drive member to move to the tripping state, so that the drive member abuts against the second connecting part, thereby driving the transmission member to reset. The first reset member drives the transmission member to move to the tripping state, so that the first connecting part abuts against the drive member, thereby driving the drive member to move to the tripping state.

[0013] In an optional embodiment, the operation module further includes a mounting component, the mounting component being provided with a first limiting part, and the operation component being provided with a second limiting part, the first limiting part and the second limiting part being movably engaged to limit the movement of the operation component; One of the first limiting part and the second limiting part is a shaft structure, and the other is a through hole or groove. The shaft structure is movably inserted into the through hole or the groove, and the extending direction of the through hole or the groove is consistent with the movement direction of the operating member.

[0014] In a second aspect, the present invention provides a circuit breaker including an operating module as described in any of the foregoing embodiments.

[0015] The beneficial effects of the operating module and circuit breaker provided in this invention include: It can perform closing or opening actions manually via a manual operating mechanism, and can also remotely drive the contact assembly to close or open automatically via an electric operating mechanism, thereby improving the operational reliability and adaptability of the circuit breaker. Furthermore, during manual opening, the manual operating mechanism drives the electric operating mechanism to move synchronously towards the opening position; during electric opening, the electric operating mechanism drives the mechanical switch module to open, and the manual operating mechanism follows the electric operating mechanism to the opening position under the action of elastic force. Moreover, during the opening process, the movement of the electric operating mechanism is independent of the position of the handle of the manual operating mechanism. Therefore, in the event of a circuit fault, the electric operating mechanism directly drives the mechanical switch module to open, and the manual operating mechanism does not increase the operating resistance of the electric operating mechanism. At this time, regardless of whether the handle of the manual operating mechanism is in the closing or opening position, the electric operating mechanism can ensure that the mechanical switch module is quickly driven to the opening position, thereby significantly improving the opening speed and thus the opening speed of the contact assembly, thereby improving the reliability and stability of the circuit breaker. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 An exploded view of a circuit breaker provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the circuit breaker structure provided in an embodiment of the present invention; Figure 3 This is one of the cross-sectional views of a circuit breaker provided in an embodiment of the present invention; Figure 4 This is a second sectional view of a circuit breaker provided in an embodiment of the present invention; Figure 5 This is the third sectional view of the circuit breaker provided in the embodiment of the present invention; Figure 6 This is the fourth sectional view of a circuit breaker provided in an embodiment of the present invention; Figure 7 This is the second schematic diagram of the circuit breaker structure provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the mounting component structure provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the operating component structure provided in an embodiment of the present invention; Figure 10This is a schematic diagram of the transmission component structure provided in an embodiment of the present invention; Figure 11 This is the fifth sectional view of a circuit breaker provided in an embodiment of the present invention; Figure 12 This is a schematic diagram of the initial state of the padlock component provided in an embodiment of the present invention; Figure 13 This is a schematic diagram of the padlock state provided in an embodiment of the present invention.

[0018] Icons: 10-Circuit breaker; 100-Operating module; 110-Driver; 120-Actuator; 130-Operating component; 131-Handle; 132-First mating part; 133-Abutting wall; 134-First connecting part; 135-Guide groove; 136-Second limiting part; 137-Blocking part; 138-Allowing hole; 140-Mounting component; 141-Second mating part; 1411-First section; 1412-Second section; 142-First limiting part; 150-Transmission component; 151-Mounting part; 152-Second connecting part; 160-Clutch assembly; 161-Clutch component; 1611-Mounting groove; 1612-Guide post; 162-Elastic component; 171-First reset component; 172-Second reset component; 173-Third reset component Positioning component; 180-Padlock component; 181-Through hole; 182-Restriction part; 183-Second guide part; 184-Fixing part; 200-Mechanical switch module; 300-Solid state switch module; 400-Terminal block; 410-First inlet terminal; 420-First outlet terminal; 430-Second inlet terminal; 440-Second outlet terminal; 500-Heat dissipation module; 510-Heat dissipation component; 520-Isolation component; 530-Heat dissipation channel; 540-Airflow component; 600-Mounting assembly; 610-Face cover; 611-Padlock hole; 612-Holding part; 613-First guide part; 620-Top cover; 630-Middle cover; 640-Base; 700-Transmission link; 710-First link; 720-Second link; 800-Sensor. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and 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, and therefore should not be construed as a limitation of this invention.

[0023] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0024] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0025] Please see Figures 1 to 13 This invention provides a circuit breaker 10, which includes an operation module 100, a mechanical switch module 200, a solid-state switch module 300, a terminal block 400, a heat dissipation module 500, and an installation component 600.

[0026] It is understood that the mounting component 600 serves as the mounting and load-bearing structure for the entire circuit breaker 10. It includes a face cover 610, an upper cover 620, a middle cover 630, and a base 640. The operation module 100 is located on the face cover 610 and the upper cover 620 and is used to perform manual operation, driving the contact assembly in the mechanical switch module 200 to close or open via the operating element 130, or to perform electric operation, that is, remotely controlling the contact assembly in the mechanical switch module 200 to close or open via the driver 120. In the closed and open states, it can perform a padlock operation to lock the operation module 100 to prevent accidental operation. The mechanical switch module 200 and the solid-state switch module 300 can control the conduction or disconnection of the corresponding circuit current. The solid-state switch module 300 and the heat dissipation module 500 are both located on the base 640 to effectively dissipate heat from the solid-state switch module 300.

[0027] It can be understood that the solid-state switch module 300 is a contactless electronic switch unit composed of semiconductor power devices (such as silicon carbide SiC MOSFETs or IGBTs); the mechanical switch module 200 refers to an electromechanical switch device with physical contacts that can produce visible breaks.

[0028] It should be noted that the circuit breaker also includes a control module. The operation module 100 and the control module can be manually or electrically triggered to close or open the circuit. In the closed state, the operation module 100 can be electrically triggered to open the circuit under the control of the control module.

[0029] The mechanical switch module 200 and the solid-state switch module 300 are connected in series and cooperate with the control module. During the tripping process, the solid-state switch module and the mechanical switch module trip in sequence.

[0030] The operation module 100 includes a manual operation mechanism and an electric operation mechanism. The electric operation mechanism is electrically connected to the control module. The manual operation mechanism and the electric operation mechanism can be locked or disengaged from each other. The mechanical switch module 200 is used to be manually triggered by a manual operating mechanism or electrically triggered by an electric operating mechanism to close or open the circuit. In the closed state, the manual and electric operating mechanisms are disengaged. Under the control of the control module, the electric operating mechanism can drive the mechanical switch module 200 to open the circuit. During the opening process, the movement of the electric operating mechanism is independent of the position of the handle 131 of the manual operating mechanism. Thus, in the event of a circuit fault, the electric operating mechanism directly drives the mechanical switch module 200 to open the circuit. The manual operating mechanism does not increase the operating resistance of the electric operating mechanism. Furthermore, regardless of whether the operating element 130 of the manual operating mechanism is in the closed or open position, the electric operating mechanism can ensure that the mechanical switch module 200 is quickly driven to the open position, thereby significantly improving the opening speed.

[0031] Specifically, during the manual or electric closing process, the manual operating mechanism and the electric operating mechanism are interlocked, and the manual or electric operating mechanism drives the mechanical switch module to move synchronously to the closing position.

[0032] When the circuit is closed, the manual operating mechanism and the electric operating mechanism are disengaged.

[0033] During manual tripping, the manual operating mechanism drives the electric operating mechanism to move synchronously toward the tripping position; during electric tripping, the electric operating mechanism drives the mechanical switch module to trip, and the manual operating mechanism moves to the tripping position under the elastic action, so that the manual operating mechanism and the electric operating mechanism are interlocked again in the tripping state.

[0034] Furthermore, the electric operating mechanism includes a drive component 110 and a driver 120, and the manual operating mechanism includes an operating component 130 and a transmission component 150. Both the driver 120 and the operating component 130 are connected to the drive component 110 in a transmission manner. The drive component 110 is also connected to the mechanical switch module 200 in a transmission manner. The driver 120 or the operating component 130 is used to drive the drive component 110 to move, so as to drive the contact assembly of the mechanical switch module 200 to close or open.

[0035] Optionally, the drive unit 110 can be a unidirectional or bidirectional magnetic holding electromagnetic drive mechanism (for example, it can be an electromagnetic actuator with two stable holding positions that can maintain the closed or open state without continuous power supply), and its output terminal is connected to the drive unit 110.

[0036] Therefore, by sending a control signal to the drive unit 110 remotely, the drive unit 110 can be driven to move, thereby directly or indirectly driving the contact assembly of the mechanical switch module 200 to close or open.

[0037] Furthermore, the operating component 130 is provided with a handle 131 extending from the mounting component 140 and the face cover 610. Therefore, the operator can hold the handle 131 to manually move the operating component 130, thereby driving the drive component 110 to move, thus realizing the closing or opening of the contact assembly of the mechanical switch module 200.

[0038] Specifically, in the open state, the transmission component 150 and the operating component 130 are interlocked.

[0039] When the circuit is closed, the transmission component 150 is disengaged from the operating component 130.

[0040] During manual closing, the operating component 130 drives the transmission component 150 to move, thereby driving the driving component 110 to the closed state. During manual tripping, the operating component 130 drives the driving component 110 to move to the tripping state.

[0041] During the electric closing process, the driver 120 drives the transmission component 150 to move, thereby driving the driver component 110 to move to the closed state; During the electric tripping process, the driver 120 drives the drive unit 110 to move to the tripping state.

[0042] In detail, the operation module 100 also includes a mounting component 140. Both the operation component 130 and the transmission component 150 are movably disposed on the mounting component 140, and the transmission component 150 can selectively be fixedly engaged with the operation component 130. In other words, the transmission component 150 and the operation component 130 can be fixedly connected in a specific state to achieve synchronous movement, and can be disengaged from each other in other specific states, at which time the two can move relative to each other without interfering with each other.

[0043] The drive unit 110 is in transmission cooperation with the operating unit 130 and the transmission unit 150. The drive unit 110 is used to drive the contact assembly to close or open under the drive of the operating unit 130 or the driver 120.

[0044] In the open state, the transmission member 150 and the operating member 130 are fixedly engaged. The operating member 130 is used to drive the transmission member 150 to move, so as to drive the driving member 110 to move to the closed state through the transmission member 150. In the closed state, the transmission member 150 is disengaged from the operating member 130, and the driver 120 is used to drive the driving member 110 to move to the open state, and drive the transmission member 150 to reset to the initial state through the driving member 110.

[0045] As can be seen, the operation module 100 provided in this embodiment can be manually driven by the operation component 130 to move the transmission component 150, thereby driving the contact assembly to close or open via the drive component 110. It can also be automatically driven remotely by the driver 120 to directly drive the drive component 110 to move, thereby driving the contact assembly to close or open. This improves the operational reliability and adaptability of the circuit breaker 10. Moreover, in the closed state, since the transmission component 150 is disengaged from the operation component 130, when the driver 120 drives the drive component 110 to move in this state, the drive component 110 will only drive the transmission component 150 to move synchronously to the initial state, and will not drive the operation component 130 to move synchronously. This reduces the movement resistance of the drive component 110, thereby increasing the opening speed of the contact assembly and improving the reliability and stability of the circuit breaker 10.

[0046] Furthermore, the operation module 100 also includes a clutch assembly 160, which is disposed on the transmission member 150 to achieve fixed engagement or disengagement between the transmission member 150 and the operation member 130.

[0047] Specifically, the clutch assembly 160 includes a clutch element 161 and an elastic element 162. The clutch element 161 is movably disposed on the transmission element 150, and the elastic element 162 is connected to the clutch element 161 so that the clutch element 161 tends to move toward the operating element 130. In the open state and during the closing process, the clutch element 161 is fixedly engaged with the operating element 130 under the action of the elastic element 162. In the closed state, the clutch element 161 abuts against the mounting element 140 so that the clutch element 161 disengages from the operating element 130.

[0048] In detail, in the open state, the operating element 130 and the clutch element 161 are tightly fitted or embedded under the action of elastic force, forming a mechanical locking relationship. At this time, the operator applies a closing force to the operating element 130, which is completely transmitted to the transmission element 150 through the clutch element 161, driving the transmission element 150 to move synchronously, and then driving the drive element 110 to complete the closing action. In the closed state, the operating element 130 separates from the transmission element 150 after reaching the predetermined position, so that the clutch element 161 and the operating element 130 change from a fixed engagement to a free separation state. Therefore, in this state, when the contact assembly is opened, the operating element 130 will not move synchronously, thereby reducing the movement resistance of the drive element 110, thereby increasing the opening speed of the contact assembly, and thus improving the reliability and stability of the circuit breaker 10.

[0049] Furthermore, the transmission component 150 is provided with a mounting portion 151, the operating component 130 is provided with a first mating portion 132, the mounting component 140 is provided with a second mating portion 141, and the clutch component 161 and the elastic component 162 are both provided in the mounting portion 151.

[0050] In the open state and during the closing process, the clutch 161 is fixedly engaged with the first mating part 132 under the action of the elastic member 162. In the closed state, the clutch 161 abuts against the second mating part 141 so that the clutch 161 disengages from the first mating part 132.

[0051] In this embodiment, the mounting portion 151 serves as a dedicated receiving space on the transmission member 150. Its groove extends along the surface of the transmission member 150 body, providing a clear sliding guide path and limiting boundary for the clutch member 161. This allows the clutch member 161 to reciprocate in a predetermined direction under the action of the elastic member 162, without deflection or instability, and without detaching from the transmission member 150 body. The clutch member 161 is entirely embedded in the mounting portion 151, and its outer contour matches the groove of the mounting portion 151, thereby maintaining synchronization when moving with the transmission member 150, and being able to independently generate a small displacement when subjected to external forces.

[0052] The first mating part 132 also has a groove structure, with its opening facing the mounting part 151, and its position precisely corresponds to the end of the movement stroke of the clutch 161 in the mounting part 151.

[0053] Therefore, in the open state, the elastic element 162 is in a pre-compressed state, continuously applying a force to the clutch element 161 in the direction of the operating element 130, pushing the clutch element 161 to slide toward the mounting part 151 until it is embedded in the groove of the first mating part 132, so as to form a "mortise and tenon" type fitting relationship. The protruding part of the clutch element 161 is inserted into the groove of the operating element 130, forming a mechanical interlock, ensuring that the operating element 130 can drive the clutch element 161 to move synchronously without slippage when it moves.

[0054] During the closing process, the operating member 130 moves continuously, and its first mating part 132 moves accordingly. However, since the clutch member 161 has been pressed into the groove by the elastic member 162, it remains in the engaged state, thereby transmitting the driving force of the operating member 130 completely to the transmission member 150, ensuring the continuous execution of the closing action. Until the transmission member 150 and the operating member 130 move to the corresponding position in the closed state, the second mating part 141 provided on the transmission member 150 enters the movement path of the clutch member 161 and makes physical contact with its front end to generate a reverse pushing force. This force overcomes the pre-pressure of the elastic member 162, forcing the clutch member 161 to retract as a whole, so that its front end gradually exits the groove of the first mating part 132 and finally completely disengages, thereby realizing the transformation of the transmission member 150 and the operating member 130 from a fixed mating state to a mutually disengaged state.

[0055] Furthermore, the second mating part 141 includes a first section 1411 and a second section 1412 protruding from the inner wall of the mounting member 140. The first section 1411 is inclined. During the closing process, the first section 1411 slides with the clutch member 161 so that the clutch member 161 gradually moves away from the first mating part 132. In the closed state, the second section 1412 abuts against the clutch member 161 so that the clutch member 161 disengages from the first mating part 132.

[0056] Therefore, it can be seen that under the pre-pressure of the elastic element 162, the clutch 161 should be tightly pressed against the first mating part 132. However, through continuous mechanical interference, the inclined surface of the first section 1411 causes the clutch 161 to produce a slight displacement in the same direction as the operation. This displacement increases linearly with the stroke, thereby achieving the gradual and predictable disengagement of the clutch 161. Until the brake is closed, the transmission element 150 stops moving. At this time, the clutch 161 has returned to the predetermined position, and its front end just reaches the area where the second section 1412 is located, so as to prevent the clutch 161 from returning further and completely cut off any possible contact between it and the first mating part 132, ensuring that the two are completely disengaged.

[0057] It should be noted that the operating component 130 is also provided with an inclined abutment wall 133. One end of the abutment wall 133 corresponds to the first mating part 132. In the closed state, the abutment wall 133 fits against the first section 1411, thereby avoiding interference of the mounting component 140 with the operating component 130 and ensuring stable contact between the two in the closed state.

[0058] It should also be noted that the clutch 161 is provided with a mounting groove 1611, and a guide post 1612 is provided in the mounting groove 1611. The elastic element 162 is provided in the mounting groove 1611 and sleeved on the guide post 1612, so that the elastic element 162 always deforms along its own axis during the process of being compressed or rebounding, thereby improving the motion stability of the clutch 161.

[0059] Furthermore, the operation module 100 also includes a first reset member 171, which is disposed on the mounting member 140 and connected to the operation member 130, for giving the operation member 130 a tendency to move toward the open state; therefore, during the electric opening process, the driver 120 drives the drive member 110 to move to the open state, and the first reset member 171 drives the operation member 130 to move to the open state, so as to ensure that the operation member 130 can move to the initial position corresponding to the open state under the drive of the first reset member 171 without being subjected to other forces.

[0060] Furthermore, the operating member 130 is also provided with a first connecting part 134, the transmission member 150 is provided with a second connecting part 152, and the driving member 110 is disposed between the first connecting part 134 and the second connecting part 152.

[0061] Specifically, during the closing process, the operating member 130 is moved horizontally by the operator, which drives the transmission member 150 to move synchronously. During this process, the transmission member 150 abuts against the driving member 110 through the second connecting part 152, so as to drive the driving member 110 to move until the closing state. It should be noted that in the closing state, although the operating member 130 and the transmission member 150 are disengaged from each other, the operating member 130 has a tendency to move towards the opening state under the action of the first reset member 171, so that the first connecting part 134 of the operating member 130 abuts against the driving member 110. At this time, the driving member 110 plays a limiting role on the operating member 130, so as to keep the operating member 130 in the closing state.

[0062] During the opening process, the driver 120 drives the drive member 110 to move until the closing state. During this process, the drive member 110 is still in contact with the second connecting part 152 to drive the transmission member 150 to move synchronously to the opening state. As the drive member 110 moves toward the opening state, the restriction effect of the drive member 110 on the first connecting part 134 is thus removed. At this time, the operating member 130 also moves toward the opening state under the action of the first reset member 171. Therefore, the first connecting part 134 is still in contact with the drive member 110, and a force is also applied to the drive member 110 to move toward the opening state through the first connecting part 134. Therefore, in the opening state, the drive member 110 is simultaneously subjected to the forces of the first reset member 171 and the driver 120, thereby further increasing the speed at which the drive member 110 drives the contact assembly to open.

[0063] In addition, the operation module 100 also includes a second reset member 172.

[0064] The second reset member 172 is disposed on the mounting member 140 and connected to the transmission member 150, so that the transmission member 150 has a tendency to move toward the open state; when the circuit is closed and the manual operation mechanism and the electric operation mechanism are disengaged from each other, the second reset member 172 drives the transmission member 150 to move to the open state.

[0065] Furthermore, the operating member 130 is also provided with a guide groove 135. The extension direction of the guide groove 135 is consistent with the movement direction of the operating member 130. The guide groove 135 is connected to the first mating part 132. The end of the clutch member 161 is movably disposed in the guide groove 135 to ensure the movement stability of the clutch member 161.

[0066] Furthermore, the mounting component 140 is provided with a first limiting part 142, and the operating component 130 is provided with a second limiting part 136. The first limiting part 142 and the second limiting part 136 are movably engaged to limit the movement of the operating component 130, so that the movement stroke of the operating component 130 is strictly constrained in a constant direction, which not only avoids structural overload caused by excessive operating force, but also eliminates endpoint drift caused by assembly gaps or wear.

[0067] Specifically, one of the first limiting part 142 and the second limiting part 136 is a shaft structure, and the other is a through hole 181 or a groove. The shaft structure is movably inserted into the through hole 181 or the groove. The extension direction of the through hole 181 or the groove is consistent with the movement direction of the operating member 130, so that the limiting process is smooth and impact-free. Because there is a controllable gap between the shaft structure and the hole / groove wall, it ensures smooth sliding and avoids jamming caused by sliding friction between the operating member 130 and the transmission member 150 due to force contact.

[0068] It is worth mentioning that there are at least two clutches 161 and at least two elastic elements 162. At least two clutches 161 and at least two elastic elements 162 are provided in a one-to-one correspondence. At least two clutches 161 are provided on the transmission element 150 and are used to fix and cooperate with the operating element 130.

[0069] For example, in this embodiment, there are two of each and they are symmetrically arranged with respect to the handles 131 of the operating member 130, so that the force on the transmission member 150 is more balanced and the uniformity and certainty of the reset action of the transmission member 150 are ensured.

[0070] Furthermore, the operation module 100 also includes a padlock 180. The face cover 610 is provided with a padlock hole 611, and the padlock 180 is movably disposed in the padlock hole 611. In the open state, the operation member 130 is located outside the movement path of the padlock 180 so that the padlock 180 can extend out of the padlock hole 611. In the closed state, during the closing movement, or during the opening movement, the operation member 130 is located on the movement path of the padlock 180 to prevent the padlock 180 from moving.

[0071] Specifically, in the open state, the operating member 130 moves outside the movement path of the padlock member 180, that is, the outline of the padlock member 180 does not overlap with the projection area of ​​the plane where the padlock hole 611 is located. The padlock member 180 can slide freely along the padlock hole 611 to the extended position without obstruction, thereby allowing the user to insert the padlock to implement forced locking. In the closed state, during the closing movement or the opening movement, the operating member 130 is in the middle stroke. The operating member 130 is located on the movement path of the padlock member 180, that is, the operating member 130 is at least partially corresponding to the padlock hole 611 to form an insurmountable barrier for the padlock member 180. At this time, when the operator tries to extend the padlock member 180, the padlock member 180 is blocked by the contact with the operating member 130 and cannot continue to extend.

[0072] As can be seen, the operation module 100 provided in this embodiment has a simple structure, uses few parts, and therefore occupies a small volume. It can effectively and conveniently perform padding action in the closed or open state, thus improving the reliability of the operation module 100 in a purely mechanical way.

[0073] It is worth mentioning that when the padlock 180 extends out of the padlock hole 611 and is in the padlock state, the padlock 180 is also located on the movement path of the operating member 130 to prevent the operating member 130 from moving to the closed position.

[0074] Specifically, the operating member 130 is provided with a blocking part 137. In the open state, the blocking part 137 is located outside the movement path of the padlock member 180 so that the padlock member 180 can extend out of the padlock hole 611. In the closed state, during the closing movement or during the opening movement, the blocking part 137 is located on the movement path of the padlock member 180 to prevent the padlock member 180 from moving.

[0075] In the closed state and during the closing movement, the operating member 130 translates from the open position to the closed position, and its body changes position accordingly. When the contour of the blocking part 137 overlaps with the sliding path of the padlock 180, the two form rigid contact. If the padlock 180 attempts to extend forward, its end face immediately abuts against the surface of the blocking part 137, and is blocked from further advancement. Similarly, during the opening movement, the operating member 130 moves in the opposite direction, repeatedly achieving mechanical blocking of the padlock 180. The timing of this blocking action strictly corresponds to the movement stroke of the operating member 130, neither too early nor too late, ensuring that the padlock 180 is reliably locked as long as the operating member 130 is not stably stopped at any extreme position.

[0076] Furthermore, the blocking part 137 is provided with a clearance hole 138. In the open state, the clearance hole 138 corresponds to the padlock 180. At this time, the blocking part 137 is located outside the movement path of the padlock 180, so that the padlock 180 can smoothly pass through and continue to extend forward until it is completely detached from the face cover 610.

[0077] Specifically, in the open state, the operating member 130 is in the initial position. Since the clearance hole 138 corresponds to the padlock member 180, its projection does not cover the area of ​​the padlock hole 611. At this time, the padlock member 180 can extend freely. In the closed state, during the closing movement, and during the opening movement, the blocking part 137 completely blocks the path of the padlock member 180.

[0078] Furthermore, the padlock 180 is provided with a through hole 181, and the padlock part is movably inserted through the through hole 181. The padlock 180 has a limiting part 182 protruding from the inner wall of the through hole 181. In the open state, the clearance hole 138 corresponds to the limiting part 182. In the closed state, during the closing movement, or during the opening movement, the limiting part 182 is used to abut against the blocking part 137 to prevent the padlock 180 from moving.

[0079] Furthermore, the operation module 100 also includes a third reset member 173, which is disposed between the face cover 610 and the padlock member 180. The third reset member 173 is used to make the padlock member 180 tend to move along the padlock hole 611 to the inside of the face cover 610.

[0080] Therefore, the padlock 180 extends out of the outer side of the face cover 610 and is padlocked to restrict the padlock 180 to the padlock position, thereby ensuring that the operation member 130 is prevented from moving by the padlock 180; if it is necessary to release the padlock, the operator removes the padlock from the padlock 180, at which time the padlock 180 can retract from the padlock hole 611 to the inner side of the face cover 610 again under the elastic force of the third reset member 173, so as to ensure that the operation member 130 can smoothly perform the closing and opening actions.

[0081] To facilitate the installation of the third reset member 173, the padlock member 180 is also provided with a fixing part 184, which is detachably provided on the face cover 610, and the third reset member 173 is provided on the fixing part 184.

[0082] Specifically, the inner wall of the cover 610 is provided with at least two opposing retaining portions 612, and the fixing portion 184 is detachably engaged between the two retaining portions 612.

[0083] As can be seen, by clamping the end face of the fixing part 184 with the two side clamping parts 612, its movement along the axial direction of the padlock hole 611 is restricted, ensuring that the pre-tightening force direction of the third reset part 173 is always consistent with the movement direction of the padlock part 180.

[0084] It is worth mentioning that there are at least two fixing parts 184 and at least two third reset parts 173. At least two fixing parts 184 are detachably mounted on the face cover 610, and at least two third reset parts 173 are mounted on at least two fixing parts 184 in a one-to-one correspondence. This not only enhances the guidance and path stability of the padlock 180 during movement, but also ensures that the reset action can still be reliably completed in the event of component aging or local damage.

[0085] Furthermore, the inner wall of the faceplate 610 is provided with a first guide portion 613, and the padlock 180 is provided with a second guide portion 183 on the fixing portion 184. The first guide portion 613 and the second guide portion 183 are arranged opposite to each other, and one of the first guide portion 613 and the second guide portion 183 is a protrusion, while the other is a groove or through hole 181. The third reset member 173 is disposed between the first guide portion 613 and the second guide portion 183, thereby effectively ensuring the stability of the third reset member 173. In addition, during the padlocking process, the protrusion structure can also be embedded in the groove or through hole to guide the movement of the padlock 180 and ensure that the padlock 180 moves in the direction directly opposite the padlock hole 611.

[0086] Furthermore, the circuit breaker 10 also includes at least two sets of transmission links 700, which are in one-to-one transmission cooperation with at least two mechanical switch modules 200.

[0087] Specifically, each set of transmission links 700 includes a first link 710 and a second link 720. The first link 710 is rotatably mounted on the mounting assembly 600. One end of the first link 710 is movably connected to the drive member 110 of the operation module 100, and the other end is movably connected to the second link 720. The other end of the second link 720 is connected to the contact shaft of the mechanical switch module 200. The drive member 110 is used to move under the drive of the driver 120 or the operation member 130 to drive the first link 710 and the second link 720 to move, thereby driving the contact shaft of the mechanical switch module 200 to rotate, thereby driving the contact assembly of the mechanical switch module 200 to close or open.

[0088] In detail, both ends of the first connecting rod 710 are provided with oblong holes, and the connecting bearings of the drive member 110 and the second connecting rod 720 can be movably disposed in the oblong holes.

[0089] It should be noted that the operation module 100 is connected to the mechanical switch module 200 for driving the mechanical switch module 200 to close or open; at least one of the mechanical switch module 200 and the solid-state switch module 300 is located in the positive circuit, and at least the other of the mechanical switch module 200 and the solid-state switch module 300 is located in the negative circuit.

[0090] It is evident that by controlling the on / off state of the positive and negative circuits through at least one mechanical switch module 200 and at least one solid-state switch module 300, the advantages of the large opening distance isolation of mechanical switches are retained, while the microsecond-level response and arc-free breaking characteristics of solid-state switches are integrated. Thus, it has both reliable isolation capability and high-speed protection capability, meeting the requirements of the power system for safe disconnection and rapid disconnection, thereby improving the reliability and safety of the circuit breaker 10.

[0091] Furthermore, the circuit breaker 10 also includes a terminal block 400, which includes a first input terminal 410, a first output terminal 420, a second input terminal 430, and a second output terminal 440. The number of mechanical switch modules 200 and solid-state switch modules 300 is at least two. At least one mechanical switch module 200 and at least one solid-state switch module 300 are connected in series at the first input terminal 410 and the first output terminal 420 to form a positive circuit. At least one mechanical switch module 200 and at least one solid-state switch module 300 are connected in series at the second input terminal 430 and the second output terminal 440 to form a negative circuit. The operation module 100 is connected to at least two mechanical switch modules 200 for driving the at least two mechanical switch modules 200 to simultaneously close or open, so as to simultaneously connect or disconnect the positive or negative circuit.

[0092] In other words, the number of solid-state switch modules 300 can be one. A solid-state switch module 300 can be connected in series in the positive current path corresponding to the first input terminal 410 and the first output terminal 420 to control the on / off state of the positive current path, or connected in series in the negative current path corresponding to the second input terminal 430 and the second output terminal 440 to control the on / off state of the negative current path. Moreover, the number of solid-state switch modules 300 can also be two. Two solid-state switch modules 300 are connected in series in the positive current path corresponding to the first input terminal 410 and the first output terminal 420 and the negative current path corresponding to the second input terminal 430 and the second output terminal 440, respectively, to form a bidirectional bipolar protection architecture. This allows the corresponding current to be independently cut off when an overcurrent or short-circuit fault occurs in either pole, avoiding the risk of residual voltage in the system caused by unipolar protection.

[0093] The setup of the mechanical switch module 200 is the same as that of the solid-state switch module 300, and will not be repeated here.

[0094] Furthermore, the number of mechanical switch modules 200 and solid-state switch modules 300 is the same, and at least two mechanical switch modules 200 and at least two solid-state switch modules 300 are stacked in a one-to-one correspondence, and at least two mechanical switch modules 200 are arranged at intervals along a direction perpendicular to the stacking direction.

[0095] Furthermore, the circuit breaker 10 also includes a heat dissipation module 500, an operation module 100, a mechanical switch module 200, a solid-state switch module 300, and the heat dissipation module 500 are stacked on the mounting assembly 600, with the solid-state switch module 300 attached to the heat dissipation module 500.

[0096] In this embodiment, the heat dissipation module 500 includes a heat sink 510, which has a finned structure. The solid-state switch module 300 is tightly attached to the surface of the heat sink 510 by means of thermally conductive adhesive, thermally conductive pads or mechanical pressing, thereby forming a physical contact path with low thermal resistance. This allows the heat generated by the conduction loss and switching loss of the semiconductor device during the switching process of the solid-state switch module 300 to be efficiently conducted to the heat sink 510 body.

[0097] Furthermore, the heat dissipation module 500 also includes an isolator 520. The solid-state switch module 300 is attached to the heat dissipation module 510, and the isolator 520 is disposed on the heat dissipation module 510. The isolator 520, the solid-state switch module 300, and the base 640 of the mounting component 600 together form a continuous, closed heat dissipation channel 530 with a controllable cross-section. The heat dissipation module 510 is disposed in the heat dissipation channel 530, which can not only keep the heat in the heat dissipation channel 530, but also prevent the hot airflow from flowing towards the solid-state switch module 300, so as to avoid the hot airflow from reducing the flow rate and heat exchange efficiency due to disordered diffusion, thereby improving the heat dissipation capacity.

[0098] In addition, the heat dissipation module 500 also includes an airflow component 540, which is located at one end of the heat dissipation channel 530 and is used to exchange airflow for the heat dissipation channel 530, thereby further improving the heat dissipation capacity.

[0099] Furthermore, the circuit breaker 10 also includes a sensor 800, which is disposed at least one of the first input terminal 410 and the second input terminal 430, and the sensor 800 is used to acquire current and / or voltage signals.

[0100] It is understandable that sensor 800 is a key sensing unit in circuit breaker 10 for realizing electrical parameter perception and status monitoring. Specifically, it can be a Hall sensor, that is, a solid-state magnetoelectric conversion device based on the Hall effect principle.

[0101] In this embodiment, the sensor 800 is physically installed close to the conductor portion of the first input terminal 410 or the second input terminal 430, so that the magnetic field generated by the current flowing through the input terminal can be effectively coupled to the sensitive surface of the Hall element.

[0102] In practical applications, when current flows through the first input terminal 410 (or the second input terminal 430) in the main circuit, a stable, low-noise, high signal-to-noise ratio analog or digital output signal can be generated in the Hall sensor 800. This signal can be received by the control unit of the circuit breaker 10 and used for subsequent functions such as overcurrent protection, short-circuit identification, load monitoring, or energy metering. Since the Hall sensor 800 has the characteristics of strong isolation, fast response, wide bandwidth, and no insertion loss, its position at the input terminal ensures measurement accuracy and avoids affecting the current carrying capacity and insulation performance of the main circuit. In summary, the embodiments of the present invention provide an operation module 100 and a circuit breaker 10, which can be manually operated by the operation member 130 to drive the transmission member 150 to move, thereby driving the contact assembly to close or open via the drive member 110. Alternatively, the drive member 110 can be automatically driven remotely via the driver 120 to directly drive the drive member 110 to move, thereby driving the contact assembly to close or open. This improves the operational reliability and adaptability of the circuit breaker 10. Furthermore, in the closed state, since the transmission member 150 is disengaged from the operation member 130, when the drive member 110 is driven by the driver 120 in this state, the drive member 110 will only drive the transmission member 150 to move synchronously to its initial state, without synchronously driving the operation member 130. This reduces the movement resistance of the drive member 110, thereby increasing the opening speed of the contact assembly and improving the reliability and stability of the circuit breaker 10.

[0103] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An operation module (100), characterized in that, It includes a manual operating mechanism and an electric operating mechanism. The manual operating mechanism is used to manually trigger the mechanical switch module to close or open, and the electric operating mechanism is used to electrically trigger the mechanical switch module to close or open. During manual or electric closing, the manual operating mechanism and the electric operating mechanism are interlocked, and the manual operating mechanism or the electric operating mechanism drives the mechanical switch module to move synchronously to the closing position. When the circuit is closed, the manual operating mechanism and the electric operating mechanism are disengaged. During manual tripping, the manual operating mechanism drives the electric operating mechanism to move synchronously toward the tripping position; during electric tripping, the electric operating mechanism drives the mechanical switch module to trip. The movement of the electric operating mechanism is not related to the position of the handle (131) of the manual operating mechanism, and the manual operating mechanism moves to the tripping position under the action of elastic force, so that the manual operating mechanism and the electric operating mechanism are locked together again in the tripping state.

2. The operation module (100) according to claim 1, characterized in that, The operation module also includes a drive component (110), which is connected to the mechanical switch module (200) in a transmission manner. The manual operation mechanism includes an operation component (130) and a transmission component (150). The transmission component (150) can be selectively locked or disengaged from the operation component (130), and the transmission component (150) is in a transmission cooperation with the drive component (110). In the open state, the transmission member (150) and the operating member (130) are locked together; in the closed state, the transmission member (150) and the operating member (130) are disengaged. During the manual closing process, the operating component (130) drives the transmission component (150) to move, thereby driving the driving component (110) to move to the closed state; During manual tripping, the operating component (130) drives the driving component (110) to move to the tripping state.

3. The operation module (100) according to claim 2, characterized in that, The electric operating mechanism includes a driver (120), and the driving element (110) is disposed at the output end of the driver (120); The operation module further includes a first reset component (171), which is disposed on the mounting component (140) and connected to the operation component (130) to make the operation component (130) tend to move toward the open state; During the electric closing process, the driver (120) drives the transmission component (150) to move, thereby driving the driving component (110) to move to the closing state; During the electric tripping process, the driver (120) drives the drive member (110) to move to the tripping state, and the first reset member (171) drives the operation member (130) to move to the tripping state.

4. The operation module (100) according to claim 3, characterized in that, The operation module (100) further includes a second reset member (172), which is disposed on the mounting member (140) and connected to the transmission member (150), so that the transmission member (150) has a tendency to move toward the open state; When the circuit is closed and the manual operating mechanism and the electric operating mechanism are disengaged, the second reset member (172) drives the transmission member (150) to move to the open state.

5. The operation module (100) according to claim 3, characterized in that, The operation module (100) further includes a clutch (161) and an elastic element (162). The clutch (161) is movably disposed on the transmission element (150), and the elastic element (162) is connected to the clutch (161) so that the clutch (161) has a tendency to move toward the operation element (130). In the open state and during the closing process, the clutch (161) is fixedly engaged with the operating member (130) under the action of the elastic member (162). In the closed state, the clutch (161) disengages from the operating member (130).

6. The operation module (100) according to claim 5, characterized in that, The operation module (100) further includes an elastic element (162), the transmission element (150) is provided with a mounting part (151), the operation element (130) is provided with a first mating part (132), the mounting part (140) is provided with a second mating part (141), and the clutch element (161) and the elastic element (162) are both provided in the mounting part (151). In the open state and during the closing process, the clutch (161) is fixedly engaged with the first mating part (132) under the action of the elastic member (162). In the closed state, the clutch (161) abuts against the second mating part (141) so that the clutch (161) disengages from the first mating part (132).

7. The operation module (100) according to claim 6, characterized in that, The second mating part (141) includes a first segment (1411) and a second segment (1412) connected together. The first segment (1411) is inclined. During the closing process, the first segment (1411) slides with the clutch (161) so that the clutch (161) gradually moves away from the first mating part (132). In the closed state, the second segment (1412) abuts against the clutch (161) so that the clutch (161) disengages from the first mating part (132).

8. The operation module (100) according to claim 3, characterized in that, The operating component (130) is further provided with a first connecting part (134), the transmission component (150) is provided with a second connecting part (152), and the driving component (110) is provided between the first connecting part (134) and the second connecting part (152); During the closing process, the drive member (110) abuts against the second connecting part (152), and the operating member (130) drives the drive member (110) to move to the closing state through the transmission member (150); In the closed state, the first connecting part (134) abuts against the driving member (110); During the tripping process, the driver (120) drives the drive member (110) to move to the tripping state, so that the drive member (110) abuts against the second connecting part (152) to drive the transmission member (150) to reset, and the first reset member (171) drives the transmission member (150) to move to the tripping state, so that the first connecting part (134) abuts against the drive member (110) to drive the drive member (110) to move to the tripping state.

9. The operation module (100) according to claim 2, characterized in that, The operation module (100) further includes a mounting component (140), the mounting component (140) is provided with a first limiting part (142), and the operation component (130) is provided with a second limiting part (136). The first limiting part (142) and the second limiting part (136) cooperate to limit the movement of the operation component (130). One of the first limiting part (142) and the second limiting part (136) is a shaft structure, and the other is a through hole or groove. The shaft structure is movably inserted into the through hole or the groove, and the extension direction of the through hole or the groove is consistent with the movement direction of the operating member (130).

10. A circuit breaker (10), characterized in that, Includes the operation module (100) as described in any one of claims 1-9.

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