A disconnector

Abstract

The application discloses an isolating switch, wherein a stop part is arranged on a driving wheel, the stop part moves synchronously with the driving wheel; an elastic locking part is arranged in a cover, the elastic locking part is arranged at a position close to a driving wheel opening position, the elastic locking part comprises a locking part, and the elastic locking part and the movement track of the stop part have an intersection; during the rotation of the stop part along with the driving wheel to the driving wheel opening position, the stop part gradually contacts the elastic locking part, and finally passes the locking part to reach the driving wheel opening position; after the driving wheel opening position, the locking part blocks one side of the stop part rotating to a closed position, so as to realize the locking of the driving wheel; an input shaft has an unlocking boss, the unlocking boss pushes the driving wheel to rotate to the closed position during the closing operation of the input shaft, so as to realize the unlocking of the driving wheel and the elastic locking part; the application has the characteristics of preventing the rebound of a moving contact from the source.

Description

Technical Field

[0001] This application relates to the electrical field, specifically to a disconnecting switch. Background Technology

[0002] A rotary disconnector consists of an operating device and a switching device. The driving wheel of the operating device rotates the moving contact of the switching device. Because the operating device has an internal energy storage structure, the driving wheel rotates rapidly under the energy release of the storage structure. When rotating to the open position, inertia may cause it to bounce back, resulting in the moving contact falling back and reigniting the arc.

[0003] How to solve this problem and prevent the moving contact from falling back is a question worth considering. Summary of the Invention

[0004] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and to provide an operating device.

[0005] This application provides: a disconnecting switch, including an operating device and at least two switching devices; the operating device includes an input shaft, a housing, and a drive wheel; the drive wheel is rotatably disposed with respect to the housing, and has a closed position and an open position; the input shaft is rotatably disposed with respect to the housing for performing a closing operation or an opening operation; at least one of the switching devices is assembled on one side of the operating device, and the moving contact of the switching device is inserted into the drive wheel to form a linkage; wherein, a stop part is provided on the drive wheel, and the stop part moves synchronously with the drive wheel; an elastic locking member is provided inside the housing, and the elastic locking member is provided with... At the open position near the drive wheel, the elastic locking element includes a locking part, and the movement trajectories of the elastic locking element and the stop part intersect. As the stop part rotates with the drive wheel toward the open position, the stop part gradually contacts the elastic locking element and eventually passes the locking part to reach the open position. After the open position, the locking part blocks the side of the stop part from rotating toward the close position, thereby locking the drive wheel. The input shaft has an unlocking boss, which pushes the drive wheel to rotate toward the close position during the closing operation of the input shaft, thereby unlocking the drive wheel and the elastic locking element.

[0006] In some embodiments of this application, the elastic locking member includes a mounting section and a suspended section. The mounting section is fixed to the cover. A locking part is disposed on the suspended section. There is a gap between the suspended section and the cover. The locking part contacts the suspended section and deforms it, thereby passing over the locking part.

[0007] In some embodiments of this application, the mounting section is fixed to the cover by snap-fit, screw fastening, riveting, or interference fit.

[0008] In some embodiments of this application, the elastic locking member has a first surface and a second surface in the radial direction of the drive wheel. The first surface is the surface close to the drive wheel, and the second surface is the surface away from the drive wheel. During the locking and unlocking process between the locking part and the drive wheel, the stop part is always located next to the second surface. The straight-line distance from the locking part to the rotation center of the drive wheel is greater than the straight-line distance from the rest of the elastic locking member to the rotation center of the drive wheel.

[0009] In some embodiments of this application, the suspended section further includes a groove located on one side of the locking part. When the locking part locks the drive wheel, the stop part is located in the groove.

[0010] In some embodiments of this application, the groove includes a groove bottom and a groove wall, the groove wall being connected to the locking part; the groove wall is inclined, and there is an obtuse angle between the groove wall and the groove bottom.

[0011] In some embodiments of this application, the elastic locking member has a first surface and a second surface in the radial direction of the drive wheel, the first surface being the surface close to the drive wheel and the second surface being the surface away from the drive wheel; during the locking and unlocking process of the locking part and the drive wheel, the stop part is always located next to the first surface; the straight distance from the locking part to the rotation center of the drive wheel is less than the straight distance from the rest of the elastic locking member to the rotation center of the drive wheel.

[0012] In some embodiments of this application, the suspended section further includes a transition section, and the locking section is connected to the mounting section through the transition section; as the stop section rotates with the drive wheel toward the open position, the stop section gradually contacts the transition section, and the closer the transition section is to the locking section, the greater the damping force generated by the transition section on the stop section.

[0013] In some embodiments of this application, the stop portion is a shaft-shaped structure.

[0014] In some embodiments of this application, one end of the stop is connected to the drive wheel, and the other end extends along the axial direction of the drive wheel.

[0015] In some embodiments of this application, the stop and the drive wheel are integrated as one piece.

[0016] In some embodiments of this application, the stop and the drive wheel are independently formed components, and the two are fastened together by a fastening structure.

[0017] In some embodiments of this application, the operating device further includes an energy storage mechanism connected to the input shaft; the energy storage mechanism has a first driving part and a second driving part, and the driving wheel has a driven part; when the input shaft performs a tripping operation, the energy storage mechanism first stores energy and then releases energy, and when releasing energy, the first driving part pushes the driven part, so that the driving wheel finally rotates to the tripping position; when the input shaft performs a closing operation, the energy storage mechanism first stores energy and then releases energy, and when releasing energy, the second driving part pushes the driven part, so that the driving wheel finally rotates to the closing position.

[0018] The advantages of this application compared to the prior art are: The drive wheel is directly locked by an elastic locking element to prevent it from disengaging from the open position, thus preventing the moving contact from falling off at the source. This solves the problem of moving contact falling back from the source, and the anti-falling effect is more obvious. Because the locking structure is an elastic locking element, it can be forcibly released by the closing operation of the input shaft. Compared with other mechanical locking structures, its structure can be set up to be simpler. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, 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 this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the elastic locking element according to an embodiment of this application is shown; Figure 2 A schematic diagram of the elastic drive wheel according to an embodiment of this application is shown; Figure 3 This illustration shows a schematic diagram of the elastic locking member and the drive wheel being in the closed state in an embodiment of this application; Figure 4 This illustration shows a schematic diagram of the elastic locking member and the drive wheel initially contacting the elastic locking member in an embodiment of this application. Figure 5 This illustration shows a schematic diagram of the elastic locking member and the drive wheel being locked in the open state in an embodiment of this application; Figure 6 A schematic diagram of an isolating switch according to an embodiment of this application is shown; Figure 7 A perspective view of the operating device according to an embodiment of this application is shown; Figure 8 This application shows a schematic diagram and a partial enlarged view of the installation location of the elastic locking member in an embodiment of the present application; Figure 9 A schematic diagram of the input shaft, energy storage mechanism, and drive wheel in an embodiment of this application is shown. Figure 10 An exploded view of the input shaft, connecting spring, and transmission component in an embodiment of this application is shown; Figure 11 This illustration shows a schematic diagram of the energy storage mechanism in the open state in an embodiment of this application; Figure 12 A schematic diagram of the closing operation of the energy storage mechanism (after the no-load stroke) in an embodiment of this application is shown; Figure 13 A schematic diagram is shown in which the energy storage mechanism is in a critical point state when the circuit is closed, according to an embodiment of this application; Figure 14 This illustration shows a schematic diagram of the energy storage mechanism completing the closing operation in an embodiment of this application; Figure 15 This diagram illustrates the energy storage mechanism in a critical state when the circuit breaker is tripped, according to an embodiment of this application. Detailed Implementation

[0021] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0022] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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 application.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0024] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "electrical connection," and "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed electrical connection, a detachable electrical connection, or an integral connection; they can refer to a mechanical-electrical connection or an electro-electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. Example

[0026] like Figures 1-15 As shown, an embodiment of this application is an isolating switch.

[0027] This disconnector is a rotary disconnector, which includes an operating device 100 and a switching device 200. The operating device 100 can drive the switching device 200 to open or close the circuit.

[0028] Specifically, the switching device 200 internally includes a moving contact 210 and a stationary contact. The moving contact 210 rotates a certain angle in one direction to contact the stationary contact, thus closing the circuit. The moving contact 210 rotates a certain angle in another direction to separate from the stationary contact, thus opening the circuit. In this embodiment, the moving contact 210 needs to rotate 90° from open to closed, or from closed to open. Of course, this is not limited to 90°; for example, it can be 60°, 70°, 80°, 100°, etc., all are acceptable.

[0029] The operating device 100 includes a drive wheel 130. The drive wheel 130 serves as the power output component of the operating device 100 and is plugged into the moving contact 210 of the switching device 200, thus enabling the moving contact 210 to rotate.

[0030] Here, the switching device 200 can be a two-pole structure or a multi-pole structure. There are many ways to assemble it. One way is to assemble a one-pole switching device 200 at each end of the operating device 100, that is, the drive wheel 130 is simultaneously inserted into the moving contact 210 of the two-pole switching devices 200. Alternatively, the operating device 100 can be assembled with a one-pole switching device 200 (also called the first switching device 200, with the drive wheel 130 inserted into the moving contact 210 of the first switching device 200), and all the switching devices 200 are arranged and assembled in sequence (the moving contacts 210 of the switching devices 200 are inserted in sequence).

[0031] The internal structure of the switching device 200 is common knowledge and will not be described in detail here.

[0032] The operating device 100 includes a housing 120, an input shaft 110, an energy storage structure, a drive wheel 130, and a resilient locking element 140.

[0033] The input shaft 110 is rotatably mounted around the first axis O1 and the housing 120. One end of the input shaft 110 is exposed above the housing 120, while the other end extends into the housing 120. Here, the input shaft 110 serves as the output end of external force, allowing the user to operate the disconnector switch by manipulating it. When the disconnector switch is in the open state, rotating it in one direction will close it; conversely, when the disconnector switch is in the closed state, rotating it in the opposite direction will close it. The input shaft 110 is not necessarily a solid structure; it can be a sleeve structure, allowing the user to attach a handle and insert the handle shaft into the sleeve for operation.

[0034] An energy storage mechanism is connected to the input shaft 110. The energy storage mechanism has a first drive unit 152 and a second drive unit 153. Whether performing a tripping or closing operation, the energy storage mechanism stores energy and then releases it under the action of the input shaft 110. During energy release, it impacts the drive wheel 130, causing the drive wheel 130 to rotate to the target position. Specifically, when the input shaft 110 performs a closing operation, the energy storage mechanism stores energy and then releases it. During energy release, the second drive unit 153 pushes the drive wheel 130, causing the drive wheel 130 to rotate to the closed position. Conversely, when the input shaft 110 performs a tripping operation, the energy storage mechanism stores energy and then releases it. During energy release, the first drive unit 152 pushes the drive wheel 130, causing the drive wheel 130 to rotate to the tripping position.

[0035] The drive wheel 130 is rotatably mounted around the second axis O2 and the housing 120. Here, the first axis O1 and the second axis O2 are perpendicular to each other. The drive wheel 130 has an open position and a closed position, which are the same as those of the moving contact 210. The drive wheel 130 has a driven portion 132, which is a protrusion that rotates to different positions under the action of different drive portions. For example, when the second drive portion 153 pushes the driven portion 132, the drive wheel 130 rotates towards the closed position; when the first drive portion 152 pushes the driven portion 132, the drive wheel 130 rotates towards the open position.

[0036] Specifically, the energy storage mechanism includes a transmission component 150 and two energy storage springs 160.

[0037] Here, the energy storage spring 160 is connected between the housing 120 and the transmission member 150. The energy storage spring 160 has a first energy release state, a second energy release state, and a critical point state.

[0038] When performing the closing operation, the energy storage spring 160 switches from the first energy release state to the critical point state (this is the energy storage action when closing). After passing the critical point, the energy storage spring 160 switches from the critical point state to the second energy release state (this is the energy release action when closing, and it is also the source of the force that causes the drive wheel 130 to reach the closing position).

[0039] When performing the tripping operation, the energy storage spring 160 switches from the second energy release state to the critical point state (this is the energy storage action during tripping). After passing the critical point, the energy storage spring 160 switches from the critical point state to the first energy release state (this is the energy release action during tripping, and it is also the source of the force that causes the drive wheel 130 to reach the tripping position).

[0040] The change in state of the energy storage spring 160 is caused by the rotation of the transmission component 150. Specifically, the transmission component 150 is rotatably mounted on the input shaft 110, driving the transmission component 150 to rotate during both closing and opening operations of the input shaft 110. However, the transmission shaft does not maintain a constant transmission relationship with the input shaft 110. During the closing operation, the input shaft 110 travels a short distance before contacting the transmission component 150, causing it to rotate. In other words, the input shaft 110 rotates first, and the transmission component 150 rotates subsequently. During the opening operation, the input shaft 110 and the transmission component 150 are in contact.

[0041] There are many structures that can achieve this idle stroke. One example is a transmission protrusion 111 on the input shaft 110 and a transmission groove 151 on the transmission component 150. The axial dimension of the transmission groove 151 is larger than that of the transmission protrusion 111, and the transmission protrusion 111 is located within the transmission groove 151. During the closing operation, when the input shaft 110 begins to rotate under external force, the transmission protrusion 111 and the transmission groove 151 move relative to each other (this is the so-called idle stroke). As the transmission protrusion 111 contacts the groove wall of the transmission groove 151, a transmission connection is formed between them. This means that the input shaft 110 will then be able to drive the transmission component 150 to rotate. Here, the transmission protrusion 111 and the transmission groove 151 can also be referred to as a key connection.

[0042] Here, the drive wheel 130 is sleeved on the input shaft 110. When the drive wheel 130 is in the closed position, the motion trajectories of the first drive part 152 and the driven part 132 intersect. The so-called intersection here means that, assuming the transmission member 150 is rotating at this time, the first drive part 152 can contact the driven part 132.

[0043] When the drive wheel 130 is in the open position, the motion trajectories of the second drive unit 153 and the driven unit 132 do not intersect. The so-called non-intersection means that even if the transmission member 150 rotates at this time (in reality, the transmission member 150 does not rotate because the input shaft 110 and the transmission member 150 are still in the idle stroke period), the second drive unit 153 cannot contact the driven unit 132.

[0044] In order to enable the driven part 132 to move to the area where it intersects with the second drive part 153, the input shaft 110 has an unlocking boss 112. When the input shaft 110 performs the closing operation in the initial stage (that is, during the idle stroke of the input shaft 110 and the transmission member 150), the unlocking boss 112 contacts the drive wheel 130 to rotate the drive wheel 130, so that the driven part 132 can move to the position where it intersects with the second drive part 153 in the axial direction of the input shaft 110.

[0045] Here, to eliminate the external force on the input shaft 110 during the idle stroke and ensure that the input shaft 110 can return to its original position, a connecting spring 170 is provided between the input shaft 110 and the transmission component 150. This connecting spring 170 is a torsion spring, with one end inserted into the transmission component 150 and the other end inserted into the input shaft 110. In this way, even if the external force on the input shaft 110 is removed during the idle stroke, it can return to its pre-operational position under the action of the connecting spring 170.

[0046] A spring-loaded locking element 140 is disposed within the housing 120. Here, the spring-loaded locking element 140 is a spring sheet, although a spring wire can also be used. The spring-loaded locking element 140 has a locking portion 141a and is disposed around the drive wheel 130, specifically near the open position of the drive wheel 130.

[0047] The elastic locking member 140 has a locking part 141a, which locks the drive wheel 130 when the drive wheel 130 is in the open position.

[0048] The locking mechanism here relies on the locking part 141a locking the stop part 131 of the drive wheel 130. The movement trajectories of the elastic locking member 140 and the stop part 131 intersect, meaning that the stop part 131 can contact the elastic locking member 140 when it rotates with the drive wheel 130 towards the open position. Since the stop part 131 and the drive wheel 130 move synchronously, the stop part 131 only contacts the elastic locking member 140 when it rotates with the drive wheel 130 to the vicinity of the open position. This is because the elastic locking member 140 is located near the open position of the drive wheel 130. As the stop part 131 continues to rotate towards the open position, when it passes the locking part 141a and reaches the open position, the locking part 141a blocks the side of the stop part 131 from rotating towards the closed position, thus locking the drive wheel 130. Here, the resistance of the locking part 141a to the stop part 131 is greater than the rebound force on the drive wheel 130 (or the rebound force of the stop part 131), so it cannot be unlocked and remains in the open position.

[0049] Here, this locking and unlocking relies on the input shaft 110. Specifically, the input shaft 110 has an unlocking boss 112. When the input shaft 110 is subjected to an external force to perform a closing operation, the unlocking boss 112 can also rotate. Until the unlocking boss 112 acts on the drive wheel 130, causing it to rotate in the closing position, the force here is greater than the resistance of the locking part 141a to the stop part 131, so the stop part 131 is forcibly pushed over the locking part 141a (the elastic locking member 140 has been deformed), thus completing the unlocking. In this way, the drive wheel 130 can complete the closing operation under the subsequent action of the operating mechanism.

[0050] The drive wheel 130 is directly locked by the elastic locking element 140 to prevent it from disengaging from the open position, thus preventing the moving contact 210 from falling off at the source. This solves the problem of the moving contact 210 falling back from the source, and the anti-falling effect is more obvious. Since the locking structure is an elastic locking element 140, it can be forcibly released by the closing operation of the input shaft 110. Compared with other mechanical locking structures, its structure can be set up to be simpler.

[0051] Here, the stop part 131 can be integrated with the drive wheel 130. For example, if the drive wheel 130 is made of cast iron, the stop part 131 is also made of cast iron, and the two are integrally formed. Of course, the material of the drive wheel 130 is not limited to cast iron; other materials can also be used, such as powder alloys, high-strength plastics, etc., as long as the strength meets the transmission requirements (transmission requirements refer to normal use and resistance to damage).

[0052] Of course, the stop part 131 and the drive wheel 130 can also be two independently molded parts, and then fastened together by a fastening structure. There are many ways to fasten them, such as interference fit, or fastening with screws, riveting, etc. This independent molding method can simplify the mold forming of the drive wheel 130.

[0053] Here, the stop part 131 adopts a shaft-like structure. In this embodiment, a round shaft is used, as the surface of the round shaft is relatively smooth, resulting in less contact friction with the elastic locking member 140. Of course, the shaft-like structure can also be other types, such as polygonal prisms.

[0054] As for the stop part 131, one end is connected to the drive wheel 130, and the other end extends in the axial direction of the drive wheel 130, and the extension direction is parallel to the second axis O2 of the drive wheel 130.

[0055] As for the elastic locking member 140, it can be directly fixed to the cover 120 (direct fixing relationship), or it can be indirectly fixed (for example, first fixed to a bracket, and then the bracket is fixed to the cover 120).

[0056] In this embodiment, the elastic locking member 140 is directly fixed to the housing 120. Specifically, the elastic locking member 140 includes a mounting section 142 and a suspended section 141.

[0057] Mounting section 142 is fixed to the housing 120 by engaging with a protrusion on the housing 120. Alternatively, it can be secured with screws, riveting, or an interference fit. A double mounting section 142 configuration can also be used (with the suspended section 141 in the middle and mounting sections 142 at both ends), with each end secured using one of the two methods described above; this embodiment is an example of this. When the mounting section 142 consists of two sections, the installation is more secure; when it is a single section, the suspended section 141 is more easily deformed, reducing resistance to the drive wheel 130.

[0058] Here, the suspended section 141 is the section that mainly undergoes deformation. The suspended section 141 refers to the section with a gap between itself and the cover 120, which ensures that the suspended section 141 has sufficient space to deform. The locking part 141a is provided on the suspended section 141, and the stop part 131 can pass over the suspended section 141 because the suspended section 141 deforms after being compressed by the stop part 131.

[0059] Here, the resilient locking member 140 has a first surface a and a second surface b in the radial direction of the drive wheel 130. The first surface a is the surface close to the drive wheel 130, and the second surface b is the surface away from the drive wheel 130. The stop portion 131 completes locking and unlocking, and can be always located next to the second surface b or always located next to the first surface a. Simply put, the locking portion 141a is a protruding protrusion, which can protrude from either the first surface a or the second surface b.

[0060] In this embodiment, it protrudes beyond the second surface b. That is, the straight-line distance D from the locking portion 141a to the rotation center O2 of the drive wheel 130 is greater than the straight-line distance d from the remaining portion of the elastic locking member 140 to the rotation center O2 of the drive wheel 130. (When it protrudes beyond the first surface a, the dimensions are smaller.) Here, the suspended section 141 also has a groove 141b, which is located on the side of the locking part 141a. That is, when the locking part 141a locks the drive wheel 130, the stop part 131 is in the groove 141b. This groove 141b design is beneficial for positioning the stop part 131, ensuring that it is in the correct position.

[0061] This groove 141b includes a groove bottom 141b1 and a groove wall 142b2. The groove wall 142b2 is connected to the locking part 141a. The groove wall 142b2 is inclined, and there is an obtuse angle between the groove wall 142b2 and the groove bottom 141b1. This obtuse angle setting will facilitate the stop part 131 to climb along the inclined surface towards the locking part 141a when unlocking.

[0062] Here, the suspended section 141 also includes a transition section 141c, which connects the locking section 141a and the mounting section 142. The size of the transition section 141c changes gradually. Taking this embodiment as an example, as the transition section 141c gets closer to the locking section 141a, its straight-line distance from the rotation center O2 of the drive wheel 130 increases (but not more than the straight-line distance from the locking section 141a to the rotation center O2 of the drive wheel 130), and the resulting damping force also gradually increases. This structure facilitates the stop section 131 gradually moving towards the locking section 141a along the transition section 141c.

[0063] In this embodiment, the drive wheel 130 needs to rotate 90° from the closed position to the open position. Therefore, the stop part 131 contacts the elastic locking member 140 at approximately 60° (that is, starting from the closed position, it contacts the elastic locking member 140 when the rotation is close to 60°), passes the locking part 141a (approximately 85°), and reaches the open position to complete the locking (approximately 90°). Of course, this angle is just an example to illustrate that when the stop part 131 contacts the elastic locking member 140, the drive wheel 130 has not yet reached the open position; it does not specifically mean that this is the only possible angle. Here, the angle required for the drive wheel 130 to rotate from the closed position to the open position can be more varied, such as 60°, 70°, 90°, etc., and the angle at which the stop part 131 contacts the elastic locking member 140 and the angle at which the locking is completed can also be adjusted accordingly.

[0064] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0065] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A disconnecting switch, comprising an operating device and at least two switching devices; the operating device includes an input shaft, a housing, and a drive wheel; the drive wheel is rotatably disposed from the housing, and has a closed position and an open position; the input shaft is rotatably disposed from the housing for performing a closing operation or an opening operation; at least one of the switching devices is assembled on one side of the operating device, and the moving contact of the switching device is inserted into the drive wheel to form a linkage; characterized in that: A stop is provided on the drive wheel, and the stop moves synchronously with the drive wheel; an elastic locking element is provided inside the housing, and the elastic locking element is located near the open position of the drive wheel. The elastic locking element includes a locking part, and the movement trajectories of the elastic locking element and the stop part intersect. As the stop rotates with the drive wheel toward the open position, the stop gradually contacts the elastic locking element and eventually passes the locking part to reach the open position. After reaching the open position, the locking part blocks the side of the stop from rotating toward the close position, thereby locking the drive wheel. The input shaft has an unlocking boss, which pushes the drive wheel to rotate toward the close position during the closing operation of the input shaft, thereby unlocking the drive wheel and the elastic locking element.

2. The disconnecting switch according to claim 1, characterized in that: The elastic locking element includes a mounting section and a suspended section. The mounting section is fixed to the cover. The locking part is disposed on the suspended section. There is a gap between the suspended section and the cover. The locking part contacts the suspended section and deforms it, thereby passing over the locking part.

3. A disconnecting switch according to claim 2, characterized in that: The mounting section is fixed to the cover by snap-fit, screw fastening, riveting, or interference fit.

4. A disconnecting switch according to claim 2, characterized in that: The elastic locking member has a first surface and a second surface in the radial direction of the drive wheel. The first surface is the surface close to the drive wheel, and the second surface is the surface away from the drive wheel. During the locking and unlocking process between the locking part and the drive wheel, the stop part is always located next to the second surface; the straight-line distance from the locking part to the center of rotation of the drive wheel is greater than the straight-line distance from the rest of the elastic locking part to the center of rotation of the drive wheel.

5. A disconnecting switch according to claim 4, characterized in that: The suspended section also includes a groove located on one side of the locking part. When the locking part locks the drive wheel, the stop part is in the groove.

6. A disconnecting switch according to claim 5, characterized in that: The groove includes a groove bottom and a groove wall, and the groove wall is connected to the locking part; the groove wall is inclined, and there is an obtuse angle between the groove wall and the groove bottom.

7. A disconnecting switch according to claim 2, characterized in that: The elastic locking member has a first surface and a second surface in the radial direction of the drive wheel. The first surface is the surface close to the drive wheel, and the second surface is the surface away from the drive wheel. During the locking and unlocking process between the locking part and the drive wheel, the stop part is always located next to the first surface; the straight distance from the locking part to the center of rotation of the drive wheel is less than the straight distance from the rest of the elastic locking part to the center of rotation of the drive wheel.

8. A disconnecting switch according to claim 4 or 7, characterized in that: The suspended section also includes a transition section, and the locking section is connected to the mounting section through the transition section; as the stop section rotates with the drive wheel toward the open position, the stop section gradually contacts the transition section, and the closer the transition section is to the locking section, the greater the damping force generated by the transition section on the stop section.

9. A disconnecting switch according to claim 1, characterized in that: The stop part has a shaft-like structure; Alternatively, one end of the stop is connected to the drive wheel, and the other end extends along the axial direction of the drive wheel; Alternatively, the stop and the drive wheel may be integrated into one piece; Alternatively, the stop and the drive wheel are independently molded components, and the two are fastened together by a fastening structure.

10. A disconnecting switch according to claim 1, characterized in that: The operating device also includes an energy storage structure connected to the input shaft. The energy storage structure has a first driving part and a second driving part, and the driving wheel has a driven part. When the input shaft performs a tripping operation, the energy storage structure first stores energy and then releases energy. When releasing energy, the first driving part pushes the driven part, causing the driving wheel to finally rotate to the tripping position. When the input shaft performs a closing operation, the energy storage structure first stores energy and then releases energy. When releasing energy, the second driving part pushes the driven part, causing the driving wheel to finally rotate to the closing position.

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