A switch

Abstract

The application provides a switch and relates to the technical field of electrical equipment. The switch comprises a transmission member and a locking mechanism. The transmission member can be driven to move to a closed state or an open state. The locking mechanism comprises an energy storage member, a locking member, a limiting member and a driving member. One end of the energy storage member is fixedly matched with a shell, and the other end acts on the transmission member or is fixedly matched with the locking member in the closed state. The energy storage member is used for making the transmission member have a tendency to move to the open state. The locking member and the limiting member are both in transmission connection with the driving member. The driving member is used for driving the locking member to be separated from the energy storage member, so that the energy storage member can drive the transmission member to move to the open state, and the limiting member directly or indirectly abuts against the transmission member in the open state, so as to limit the transmission member from moving to the closed state. In this way, the safety and compliance of the switch operation are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment technology, and more specifically, to a switch. Background Technology

[0002] In circuit breakers or switching equipment, the tripping mechanism is used to automatically drive the contacts to open under fault conditions such as overload and short circuit, so as to cut off the fault current and ensure system safety.

[0003] However, some existing switch structures lack effective mechanical interlocking or locking mechanisms. Even when the switch is tripped, operators can still forcibly push the handle back to the closed position, even if the internal contacts are not actually closed or the fault has not been eliminated. This not only masks the true fault condition but may also lead to attempts to reconnect power without eliminating the source of the fault, which can easily cause secondary short circuits, arcing, or even equipment explosions, seriously threatening personal and equipment safety. Summary of the Invention

[0004] This invention provides a switch that can effectively lock the handle in the disengaged state, thereby improving the safety and compliance of switch operation.

[0005] The embodiments of the present invention can be implemented as follows: In a first aspect, the present invention provides a switch, comprising: A transmission component, which is used to drive the contact assembly, and the transmission component can be driven to move to a closed state or an open state. The locking mechanism includes an energy storage component, a locking component, a limiting component, and a driving component. One end of the energy storage component is fixedly engaged with the housing, and the other end acts on the transmission component, or is fixedly engaged with the locking component in the closed state. The energy storage component is used to give the transmission component a tendency to move towards the open state. The locking component and the limiting component are both connected to the driving component. The driving component is used to drive the locking component to disengage from the energy storage component, so that the energy storage component can drive the transmission component to move to the open state, and drive the limiting component to directly or indirectly abut against the transmission component in the open state, so as to restrict the transmission component from moving to the closed state.

[0006] In an optional embodiment, the driving member is provided with an output section, the limiting member includes a pushing member, the output section is connected to the pushing member, and the output section is used to drive the pushing member to move toward or away from the transmission member, so as to directly or indirectly contact or move away from the transmission member.

[0007] In an optional embodiment, the limiting member further includes a mounting member, which is provided with a sliding groove and a limiting hole. The pushing member is slidably disposed in the sliding groove. The limiting hole extends along the movement direction of the output part. The pushing member is provided with a connecting hole at an angle to the extension direction of the limiting hole. The output part passes through the limiting hole and the connecting hole. The output part is driven to move along the limiting hole and relative to the connecting hole, so as to drive the pushing member to move along the sliding groove.

[0008] In an optional embodiment, the limiting member further includes a stop member and an elastic member. The stop member is movably disposed on the pushing member, and the elastic member is disposed between the stop member and the pushing member. The stop member has a limiting portion, which is used to directly or indirectly abut against the transmission member.

[0009] In an optional embodiment, the switch further includes an actuator disposed on the transmission member. The actuator is used to drive the contact assembly to close or open under the drive of the transmission member. The actuator is provided with a limit port. In the open state, the limit port corresponds to the limit part so that the limit part abuts against the actuator.

[0010] In an optional embodiment, the locking mechanism further includes an output component, the output end of the driving component is connected to the output component, the output part is disposed on the output component, and the output component is in a transmission cooperation with the locking component to drive the locking component to disengage from the energy storage component in the closed state.

[0011] In an optional embodiment, the switch further includes a first housing, one end of the locking member is rotatably disposed in the first housing, and the other end is connected to the output member. The locking member is provided with a supporting portion for abutting against one end of the energy storage member.

[0012] In an optional embodiment, the first housing is provided with a positioning part, which is used to abut against the locking part when the locking member is moved to a state in which it can be fixedly engaged with the energy storage member.

[0013] In an optional embodiment, the locking mechanism further includes a second housing, and the output component is further provided with a reset part. The output component and the pusher are both disposed in the second housing, and the second housing is provided with a reset hole, with the reset part extending out of the reset hole. The driving member drives the output member to move, thereby causing the locking member to disengage from the energy storage member and causing the pushing member to move toward the transmission member to directly or indirectly contact the transmission member. The reset part is used to drive the output member to move in the opposite direction to reset it to the initial state.

[0014] In an optional embodiment, the locking mechanism further includes a reset member, and the locking member is also provided with a connecting portion. One end of the reset member is connected to the connecting portion, and the other end is connected to the mounting housing or contact assembly. The reset member is used to drive the locking member to move onto the movement path of the energy storage member when the output member moves to the initial state.

[0015] In an optional embodiment, the locking member is further provided with an inclined guide portion, which is connected to and opposite to the abutment portion. The guide portion is used to slide and engage with one end of the energy storage member so that the energy storage member can follow the transmission member from the open state to the closed state, so as to abut against the abutment portion and store energy.

[0016] The beneficial effects of the switch provided in this invention include: in the closed state, the locking element locks the energy storage element, preventing its release; once the driving element is triggered due to a fault, the driving element simultaneously drives the locking element to disengage from the energy storage element, allowing the energy storage element to release energy and drive the transmission element to complete the opening action; at the same time, the driving element also simultaneously drives the limiting element to move, so that it directly or indirectly abuts against the transmission element which is already in the open state, forming a physical block. Therefore, after the transmission element completes the opening, it is locked in its current position by the limiting element and cannot move in the closing direction; even if the force can be transmitted to the transmission element normally, the transmission element cannot rotate normally because it is locked by the limiting element, and it cannot drive the contacts to close. This not only prevents the secondary risks caused by accidental closing, but also ensures that the handle position truly reflects the internal contact state, effectively improving the safety and compliance of the switch operation. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is one of the schematic diagrams of a switch structure provided in an embodiment of the present invention; Figure 2 This is a second schematic diagram of a switch structure provided in an embodiment of the present invention; Figure 3 This is the third schematic diagram of the switch structure provided in the embodiment of the present invention; Figure 4 This is a schematic diagram of the switch section structure provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the limiting component structure provided in an embodiment of the present invention.

[0019] Icons: 10-Switch; 100-Operating component; 110-Transmission component; 120-Actuator; 121-Limit port; 130-First housing; 131-Positioning part; 200-Lock mechanism; 210-Energy storage component; 220-Locking component; 221-Supporting part; 222-Connecting part; 223-Guide part; 230-Limiting component; 231-Pushing component; 2311-Connecting hole; 2312-First sliding part; 2313-First positioning pin; 2 32-Mounting component; 2321-Slide groove; 2322-Limiting hole; 233-Stop component; 2331-Limiting part; 2332-Second sliding part; 2333-Second positioning post; 234-Elastic component; 240-Driving component; 241-Electromagnetic drive unit; 242-Driving spring; 250-Output component; 251-Output part; 252-Reset part; 260-Second housing; 261-Reset hole; 270-Reset component; 300-Contact assembly. Detailed Implementation

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0025] 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.

[0026] In circuit breakers or switching equipment, the tripping mechanism is used to automatically drive the contacts to open under fault conditions such as overload and short circuit, so as to cut off the fault current and ensure system safety.

[0027] However, some existing switch structures lack effective mechanical interlocking or locking mechanisms. Even when the switch is tripped, operators can still forcibly push the handle back to the closed position, even if the internal contacts are not actually closed or the fault has not been eliminated. This not only masks the true fault condition but may also lead to attempts to reconnect power without eliminating the source of the fault, which can easily cause secondary short circuits, arcing, or even equipment explosions, seriously threatening personal and equipment safety.

[0028] Therefore, there is an urgent need for a switch structure with self-locking in the tripped state and forced locking in the open position to ensure that the handle cannot be accidentally closed after the protection action, and to support external locking, thereby improving operational safety and compliance.

[0029] Please see Figures 1 to 5 This invention provides a switch 10, which includes an operating component 100, a locking mechanism 200, and a contact component 300.

[0030] The operating component 100 includes a transmission component 110, which is used to drive the contact assembly 300 and to connect to a handle. The transmission component 110 can be driven to a closed state or an open state to drive the contact assembly 300 to close or open accordingly.

[0031] The locking mechanism 200 includes an energy storage component 210, a locking component 220, a limiting component 230, and a driving component 240. One end of the energy storage component 210 is used to fix and cooperate with the housing, and the other end acts on the transmission component 110, or is fixed and cooperated with the locking component 220 in the closed state, thereby accumulating elastic potential energy so that the transmission component 110 always has a tendency to move towards the open state. This tendency is not passive, but is constrained in real time by the locking component 220.

[0032] Both the locking member 220 and the limiting member 230 are connected to the driving member 240. The driving member 240 is used to drive the locking member 220 to disengage from the energy storage member 210, so that the energy storage member 210 can drive the transmission member 110 to move to the open state, and drive the limiting member 230 to directly or indirectly abut against the transmission member 110 in the open state, so as to restrict the transmission member 110 from moving to the closed state.

[0033] In the closed state, the locking element locks the energy storage element 210, preventing it from releasing. Once the drive element 240 is triggered due to a fault, the drive element 240 simultaneously drives the locking element 220 to disengage from the energy storage element 210, allowing the energy storage element 210 to release energy and drive the transmission element 110 to complete the opening action. At the same time, the drive element 240 also simultaneously drives the limit element 230 to move, so that it directly or indirectly abuts against the transmission element 110, which is already in the open state, forming a physical block.

[0034] Therefore, after the transmission component 110 completes the opening, it is locked in its current position by the limit component 230 and cannot move in the closing direction. Even if the force can be transmitted to the transmission component 110 normally, the transmission component 110 cannot rotate normally because it is locked by the limit component 230, and it cannot drive the contacts to close. This not only prevents the secondary risks caused by accidental closing, but also makes the handle position truly reflect the internal contact status, effectively improving the safety and compliance of the operation of the switch 10.

[0035] Furthermore, the drive member 240 is provided with an output section 251, and the limiting member 230 includes a pusher 231. The output section 251 is connected to the pusher 231. The output section 251 is used to drive the pusher 231 to move toward or away from the transmission member 110 so as to directly or indirectly contact or move away from the transmission member 110.

[0036] In practical applications, the output section 251 is connected to the pusher 231. This connection is not rigidly fixed, but forms a mating structure that can transmit thrust and allow relative displacement. When the drive member 240 is triggered and actuated, its movement is directly transmitted to the pusher 231 via the output section 251. The pusher 231 then translates toward the transmission member 110, thereby stably approaching and ultimately directly or indirectly contacting the transmission member 110, which is in the open state.

[0037] It can be understood that "direct or indirect contact" means that the pusher 231 can either directly contact the surface of the transmission component 110 to form a block, or it can transmit the limiting force to the transmission component 110 through an intermediate force transmission component (such as a lever, slider or stop kit), as long as the final effect is to prevent the transmission component 110 from moving in the closing direction.

[0038] Specifically, the limiting member 230 also includes a mounting member 232, which serves as the base component of the limiting member 230. The mounting member 232 is provided with a sliding groove 2321 and a limiting hole 2322. The pushing member 231 is slidably disposed in the sliding groove 2321. The sliding groove 2321 is used to constrain the movement trajectory of the pushing member 231, ensuring that it can only slide in a straight line in a predetermined direction. The limiting hole 2322 extends along the movement direction of the output part 251. The pushing member 231 is provided with a connecting hole 2311 at an angle to the extension direction of the limiting hole 2322. The output part 251 passes through the limiting hole 2322 and the connecting hole 2311. The output part 251 is driven to move along the limiting hole 2322 and relative to the connecting hole 2311, so as to drive the pushing member 231 to move along the sliding groove 2321.

[0039] That is, the extension direction of the connecting hole 2311 is not parallel to the limiting hole 2322, but at a certain angle. Therefore, when the output part 251 passes through the limiting hole 2322 and the connecting hole 2311, its axis passes through two non-collinear channels at the same time, thus forming a "wedge-shaped" nesting relationship in the structure.

[0040] During implementation, when the output part 251 moves along the direction of the limiting hole 2322 driven by the driving member 240, it does not directly drag the pushing member 231, but instead applies an oblique thrust to the inner wall of the connecting hole 2311 with its side wall. Since there is an angle between the connecting hole 2311 and the limiting hole 2322, the thrust can be naturally decomposed into a main component force along the direction of the slide groove 2321 and an auxiliary component force perpendicular to the slide groove 2321. The main component force drives the pushing member 231 to slide smoothly along the slide groove 2321, while the auxiliary component force is absorbed by the side wall of the slide groove 2321 and converted into positive pressure, which enhances the guiding stability of the pushing member 231 in the slide groove 2321.

[0041] In addition, the limiting member 230 also includes a stop member 233 and an elastic member 234. The stop member 233 is movably disposed on the push member 231, and its degree of freedom of movement is restricted to moving in a direction perpendicular to the surface of the transmission member 110. The elastic member 234 is disposed between the stop member 233 and the push member 231, and can usually be in the form of a compression spring or an elastic sheet. The stop member 233 is provided with a limiting part 2331, which is used to directly or indirectly abut against the transmission member 110.

[0042] The limiting part 2331 is a structural end face or protrusion that directly undertakes the blocking function. Its design size and position ensure that after the pusher 231 completes its stroke, the limiting part 2331 can accurately enter the limiting area of ​​the transmission member 110 and make physical contact with it.

[0043] In detail, as shown in the figure, the pusher 231 is U-shaped. Two first sliding parts 2312 are respectively provided at the two protruding structures of the pusher 231. One side of the stop 233 is provided with a limiting part 2331, and the other side is provided with two second sliding parts 2332. The two first sliding parts 2312 and the two second sliding parts 2332 slide in cooperation. The pusher 231 is also provided with a first positioning post 2313 in the recess. The stop 233 is provided with a second positioning post 2333 between the two second sliding parts 2332. The two ends of the elastic member 234 are respectively sleeved on the first positioning post 2313 and the second positioning post 2333.

[0044] Furthermore, the switch 10 also includes an actuator 120, which is disposed on the transmission member 110. The actuator 120 is used to drive the contact assembly 300 to close or open under the drive of the transmission member 110. The actuator 120 is provided with a limit port 121. In the open state, the limit port 121 corresponds to the limit part 2331 so that the limit part 2331 abuts against the actuator 120.

[0045] The limiting port 121 is a through or recessed structure, and its outline is adapted to the shape of the limiting part 2331 provided on the stop member 233, so as to ensure that the limiting part 2331 can extend into the limiting port 121 in the open state, so as to restrict the actuator 120 from moving towards the closed state.

[0046] It should be noted that when the driving component 240 triggers and drives the locking component 220 to move, so that the locking component 220 disengages from the energy storage component 210, and the energy storage component 210 drives the transmission component 110 to move from the closed state to the open state, the driving component 240 will simultaneously drive the pushing component 231 to move along the slide groove 2321 of the mounting component 232 through the output part 251, so that the pushing component 231 drives the stopping component 233 to move towards the limit port 121. However, since it is possible that when the limit part 2331 is about to reach the position to cooperate with the limit port 121, the transmission component 110 has not yet fully moved to the open state position driven by the energy storage component 210, that is, the limit port 121 is not in place, To avoid transmission interference between the limiting part 2331 and other components during this process, which could cause the entire mechanism to jam, an elastic element 234 is provided between the pushing member 231 and the stopping member 233. This allows the limiting part 2331 of the stopping member 233 to be compressed by the elastic deformation of the elastic element 234 even if it comes into contact with other structures and causes motion interference. This ensures that even if the limiting part 2331 comes into contact with other components, the stopping member 233 can continue to move toward the transmission member 110 under the drive of the pushing member 231, and the transmission member 110 can continue to move toward the opening under the drive of the energy storage member 210 until the limiting port 121 is in place so that the limiting part 2331 can extend into it.

[0047] Furthermore, the locking mechanism 200 also includes an output component 250, the output end of the drive component 240 is connected to the output component 250, the output part 251 is disposed on the output component 250, and the output component 250 is in a transmission cooperation with the locking component 220 to drive the locking component 220 to disengage from the energy storage component 210 in the closed state.

[0048] As can be seen, the output component 250 is a mechanical component independent of the driving component 240 and the locking component 220. It is connected to the output end of the driving component 240 to receive the driving force of the driving component 240, and at the same time forms a transmission cooperation with the locking component 220. It also forms a transmission cooperation with the pushing component 231 through the output part 251, thereby realizing that under the driving action of the driving component 240, the locking component 220 is simultaneously disengaged from the energy storage component 210 to release its constraint, and at the same time, the pushing component 231 drives the stop component 233 to extend into the limiting port 121 to restrict the movement of the actuator 120 and the transmission component 110.

[0049] Furthermore, the switch 10 also includes a first housing 130, one end of the locking member 220 is rotatably disposed in the first housing 130, and the other end is connected to the output member 250. The locking member 220 is provided with a supporting part 221, which is used to abut against one end of the energy storage member 210.

[0050] In this embodiment, the locking member 220 is rotatably connected to it via a pin, shaft, or bearing structure. This connection allows the locking member 220 to rotate around a fixed axis while strictly restricting its degrees of freedom in other directions. The other end of the locking member 220 is in transmission engagement with the output member 250. When the output member 250 is driven by the driving member 240, it uses this rotation fulcrum as a pivot to drive the locking member 220 to swing at a certain angle. The abutment portion 221 provided on the locking member 220 is the working surface that directly undertakes the function of constraining the energy storage member 210. Its shape is usually a protrusion, an arc groove, or a slope structure, ensuring that when the locking member 220 is in position, the abutment portion 221 can form surface contact or line contact with one end of the energy storage member 210, thereby reliably preventing the energy storage member 210 from releasing.

[0051] In addition, the first housing 130 is provided with a positioning part 131, which is used to abut against the locking part 220 when the locking member 220 moves to a state in which it can be fixedly engaged with the energy storage member 210.

[0052] It is understood that by providing a positioning part 131 on the first housing 130, it is ensured that the locking member 220 can be reset to the position that abuts against the energy storage member 210.

[0053] It is worth mentioning that the first housing 130 can be an integral housing structure, that is, the end of the locking member 220 and the positioning part 131 are both disposed on the same housing structure; of course, in other embodiments, the first housing 130 can also be composed of a front shell and a bottom shell, that is, the end of the locking member 220 is rotatably disposed on the front shell, while the positioning part 131 is disposed on the bottom shell, which is not specifically limited here.

[0054] Furthermore, the locking mechanism 200 also includes a second housing 260, and the output component 250 is also provided with a reset part 252. The output component 250 and the pusher 231 are both provided in the second housing 260. The second housing 260 is provided with a reset hole 261, and the reset part 252 extends out of the reset hole 261.

[0055] The driving member 240 drives the output member 250 to move, thereby causing the locking member 220 to disengage from the energy storage member 210, and causing the pushing member 231 to move toward the transmission member 110 to directly or indirectly contact the transmission member 110. The reset part 252 is used to drive the output member 250 to move in the opposite direction to reset it to the initial state.

[0056] The reset part 252 is a protruding structure that extends radially or axially from the body of the output member 250. Its outer contour is adapted to the inner wall shape of the reset hole 261, so that the reset part 252 can slide through the reset hole 261 and be circumferentially limited and axially guided within the hole.

[0057] When the drive unit 240 starts and drives the output unit 250 to move, the output unit 250 drives the locking unit 220 to exit the mating area of ​​the energy storage unit 210, and simultaneously drives the push unit 231 and the stop unit 233 to move towards the position that directly or indirectly abuts against the transmission unit 110.

[0058] During this process, the reset part 252 also moves from one end of the reset hole 261 to the other end along with the output part 250. Therefore, by manually applying the reset part 252 or other driving device, the reset part 252 can move in the opposite direction along the reset hole 261 to the initial end, thereby driving the output part 250 to reset.

[0059] It should be noted that the driving component 240 includes an electromagnetic driving unit 241 and a driving spring 242. The driving spring 242 is connected to the output component 250. In the initial state, the driving spring 242 is in a compressed state. After the electromagnetic driving unit 241 is activated, it can release the energy of the driving spring 242, thereby driving the output component 250 to move. This achieves the purpose of disengaging the locking component 220 and limiting the transmission component 110 with the limiting component 230. Subsequently, the reset part 252 can be manually or by other driving devices to reset the output component 250 and simultaneously reset the driving spring 242 to its initial compressed state.

[0060] Furthermore, the locking mechanism 200 also includes a reset member 270, and the locking member 220 is also provided with a connecting part 222. One end of the reset member 270 is connected to the connecting part 222, and the other end is connected to the mounting housing or contact assembly 300. The reset member 270 is used to drive the locking member 220 to move onto the movement path of the energy storage member 210 when the output member 250 moves to the initial state.

[0061] In this embodiment, the reset member 270 is a spring or tension spring structure, and the connecting part 222 is a recessed structure or a protruding structure provided on the locking member 220, so that one end of the reset member 270 can be hung on the locking member 220.

[0062] Therefore, when the driving member 240 drives the output member 250 to disengage the locking member 220 from the energy storage member 210, the locking member 220 will also cause the reset member 270 to undergo elastic deformation. After the output member 250 is reset by the reset part 252, the force of the output member 250 on the locking member 220 is removed, and the elastic force of the reset member 270 will cause the locking member 220 to move in the opposite direction until the locking member 220 abuts against the positioning part 131.

[0063] Furthermore, the locking member 220 is also provided with an inclined guide portion 223. The guide portion 223 is connected to and opposite to the abutment portion 221. The guide portion 223 is used to slide and cooperate with one end of the energy storage member 210 so that the energy storage member 210 can follow the transmission member 110 from the open state to the closed state, so as to abut against the abutment portion 221 and store energy.

[0064] It should be noted that the guide portion 223 is a slope or arc-shaped boss with a defined inclination angle. When the transmission member 110 changes from opening to closing, the energy storage member 210 rotates accordingly and approaches the locking member 220. Its free end first contacts the slope of the guide portion 223. As the rotation continues, the energy storage member 210 smoothly moves upward relative to the slope, thereby driving the locking member 220 away from the energy storage member 210, so that the end of the energy storage member 210 can smoothly pass over the abutment portion and abut against the abutment portion.

[0065] In summary, this embodiment of the invention provides a switch 10 that, in the closed state, locks the energy storage unit 210 with a locking member 220, preventing its release. If a fault triggers the drive member 240, the drive member 240 simultaneously drives the locking member 220 to disengage from the energy storage unit 210, allowing the energy storage unit 210 to release energy and drive the transmission member 110 to complete the opening action. Simultaneously, the drive member 240 also simultaneously drives the limit member 230 to move, causing it to directly or indirectly contact the transmission member 110, which is already in the open state, forming a physical block. Therefore, after completing the opening action, the transmission member 110 is locked in its current position by the limit member 230 and cannot move in the closing direction. Even if force can be normally transmitted to the transmission member 110, it cannot rotate normally because it is locked by the limit member 230, and therefore cannot drive the contacts to close. This prevents secondary risks caused by accidental closing and ensures that the handle position accurately reflects the internal contact state, effectively improving the safety and compliance of the switch 10 operation.

[0066] 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. A switch, characterized in that, include: A transmission component (110) is used for transmission connection with the contact assembly (300), and the transmission component (110) can be driven to move to the closed state or the open state. The locking mechanism (200) includes an energy storage component (210), a locking component (220), a limiting component (230), and a driving component (240). One end of the energy storage component (210) is fixedly engaged with the housing, and the other end acts on the transmission component (110), or is fixedly engaged with the locking component (220) in the closed state. The energy storage component (210) is used to give the transmission component (110) a tendency to move towards the open state. The locking component... Both (220) and the limiting member (230) are connected to the driving member (240) in a transmission manner. The driving member (240) is used to drive the locking member (220) to disengage from the energy storage member (210) so that the energy storage member (210) can drive the transmission member (110) to move to the open state, and drive the limiting member (230) to directly or indirectly abut against the transmission member (110) in the open state to restrict the transmission member (110) from moving to the closed state.

2. The switch according to claim 1, characterized in that, The driving member (240) is provided with an output part (251), and the limiting member (230) includes a pushing member (231). The output part (251) is connected to the pushing member (231). The output part (251) is used to drive the pushing member (231) to move toward or away from the transmission member (110) so as to directly or indirectly contact or move away from the transmission member (110).

3. The switch according to claim 2, characterized in that, The limiting member (230) also includes a mounting member (232), which is provided with a sliding groove (2321) and a limiting hole (2322). The pushing member (231) is slidably disposed in the sliding groove (2321). The limiting hole (2322) extends along the movement direction of the output part (251). The pushing member (231) is provided with a connecting hole (2311) at an angle to the extension direction of the limiting hole (2322). The output part (251) passes through the limiting hole (2322) and the connecting hole (2311). The output part (251) is driven to move along the limiting hole (2322) and relative to the connecting hole (2311) to drive the pushing member (231) to move along the sliding groove (2321).

4. The switch according to claim 3, characterized in that, The limiting member (230) further includes a stop member (233) and an elastic member (234). The stop member (233) is movably disposed on the pushing member (231). The elastic member (234) is disposed between the stop member (233) and the pushing member (231). The stop member (233) is provided with a limiting part (2331), which is used to directly or indirectly abut against the transmission member (110).

5. The switch according to claim 4, characterized in that, The switch also includes an actuator (120), which is disposed on the transmission member (110). The actuator (120) is used to drive the contact assembly (300) to close or open under the drive of the transmission member (110). The actuator (120) is provided with a limit port (121). In the open state, the limit port (121) corresponds to the limit part (2331) so that the limit part (2331) abuts against the actuator (120).

6. The switch according to claim 2, characterized in that, The locking mechanism (200) further includes an output component (250), the output end of the driving component (240) is connected to the output component (250), the output part (251) is disposed on the output component (250), and the output component (250) is in a transmission cooperation with the locking component (220) to drive the locking component (220) to disengage from the energy storage component (210) in the closed state.

7. The switch according to claim 6, characterized in that, The switch also includes a first housing (130), one end of the locking member (220) is rotatably disposed in the first housing (130), and the other end is connected to the output member (250). The locking member (220) is provided with a supporting part (221), which is used to abut against one end of the energy storage member (210).

8. The switch according to claim 7, characterized in that, The first housing (130) is provided with a positioning part (131). When the locking member (220) moves to a state where it can be fixedly engaged with the energy storage member (210), the positioning part (131) is used to abut against the locking member (220).

9. The switch according to claim 6, characterized in that, The locking mechanism (200) further includes a second housing (260), and the output component (250) is also provided with a reset part (252). The output component (250) and the pusher (231) are both provided in the second housing (260). The second housing (260) is provided with a reset hole (261), and the reset part (252) extends out of the reset hole (261). The drive member (240) drives the output member (250) to move, thereby causing the locking member (220) to disengage from the energy storage member (210) and causing the push member (231) to move toward the transmission member (110) to directly or indirectly contact the transmission member (110). The reset part (252) is used to drive the output member (250) to move in the opposite direction to reset to the initial state.

10. The switch according to claim 9, characterized in that, The locking mechanism (200) further includes a reset member (270), and the locking member (220) is also provided with a connecting part (222). One end of the reset member (270) is connected to the connecting part (222), and the other end is connected to the mounting housing or contact assembly (300). The reset member (270) is used to drive the locking member (220) to move to the movement path of the energy storage member (210) when the output member (250) moves to the initial state.

11. The switch according to claim 7, characterized in that, The locking member (220) is also provided with an inclined guide portion (223), which is connected to and opposite to the abutment portion (221). The guide portion (223) is used to slide and cooperate with one end of the energy storage member (210) so that the energy storage member (210) can follow the transmission member (110) from the open state to the closed state, so as to abut against the abutment portion (221) and store energy.

Images