Operating mechanism and switchgear having the same

Abstract

This utility model relates to an operating mechanism and a switchgear having the operating mechanism. The operating mechanism controls the closing and opening actions of a moving contact. It includes a force-applying component, a force-transmitting component, and a force-receiving component. The force-applying component is integrally connected to a force-applying part, and the force-transmitting component is integrally connected to a first force-transmitting part. The force-applying part and the first force-transmitting part cooperate to form a force-applying transmission structure. The force-transmitting component is also integrally connected to a second force-transmitting part, and the force-receiving component is integrally connected to a force-receiving part. The second force-transmitting part and the force-receiving part cooperate to form a force-receiving transmission structure. The force-applying component applies an external driving force and drives the force-transmitting component to move via the force-applying transmission structure. The force-receiving component is connected to the moving contact to drive the moving contact to perform closing and opening actions. This utility model forms a force-applying / force-receiving transmission structure between adjacent parts by integrally connecting the force-applying part, the first force-transmitting part, the second force-transmitting part, and the force-receiving part to the force-applying component, the force-transmitting component, and the force-receiving component, respectively. This results in a transmission between parts with fewer parts and more reliable transmission.

Description

Technical Field

[0001] This utility model relates to the field of switchgear technology, specifically to an operating mechanism and a switchgear having the operating mechanism. Background Technology

[0002] Disconnect switches or circuit breakers, and other switching devices, typically employ operating mechanisms for closing or opening operations. In existing technology, to reliably drive the moving contact to close or open, an elastic element is used to store energy. Specifically, the elastic element deforms and stores energy as the force-applying components such as the handle of the operating mechanism move, and then releases this energy during its return to its original position, driving the force-receiving components and the moving contact to move. However, the operating mechanisms in existing technology are complex in structure, with intricate relationships between the force-applying components, elastic element, and force-receiving components. The numerous parts and complex power transmission between them hinder rapid response of the moving contact and impede the miniaturization of the switching device structure. Summary of the Invention

[0003] The purpose of this utility model is to provide an operating mechanism and a switching device having the operating mechanism, and to improve the energy storage structure of the operating mechanism in order to solve the problems caused by the large number of parts and complex structure of the existing operating mechanism.

[0004] To achieve the above objectives, the technical solution of this utility model includes:

[0005] An operating mechanism for controlling the moving contact to perform closing and opening actions includes a force-applying component, a force-transmitting component, and a force-receiving component. The force-applying component is integrally connected to a force-applying part, and the force-transmitting component is integrally connected to a first force-transmitting part. The force-applying part and the first force-transmitting part cooperate to form a force-applying transmission structure. The force-transmitting component is also integrally connected to a second force-transmitting part, and the force-receiving component is integrally connected to a force-receiving part. The second force-transmitting part and the force-receiving part cooperate to form a force-receiving transmission structure. The force-applying component applies an external driving force and drives the force-transmitting component to operate via the force-applying transmission structure. The force-receiving component is connected to the moving contact to drive the moving contact to perform closing and opening actions.

[0006] In one embodiment, an elastic element connected to the force transmission element is also provided. The elastic element is used to deform and store energy under the drive of the force transmission element by means of its connection with the force transmission element, and is also used to restore and release energy to drive the force transmission element to move, thereby driving the force transmission element to move through the force transmission structure.

[0007] In one embodiment, the force-applying component, the force-transmitting component, and the force-receiving component are coaxially arranged rotating components and arranged sequentially along the direction of rotation axis. The elastic component is disposed on the outer periphery of the rotation axis of the force-transmitting component. The elastic component has a movable end and a fixed end. The movable end is connected to the force-transmitting component. The movable end moves accordingly as the elastic component deforms and recovers.

[0008] In one embodiment, the force-applying part is disposed on the end face of the force-applying member, and the first force-transmitting part is disposed on the first end face of the force-transmitting member. One of the force-applying part and the first force-transmitting part is a concave structure, and the other is a convex structure. The concave and convex parts of the force-applying part and the first force-transmitting part correspond to each other, thereby forming the force transmission structure with concave and convex fit. The central angle of the concave structure is larger than the central angle of the convex structure, so that an energy release idle stroke is formed between the force-applying member and the force-transmitting member.

[0009] In one embodiment, the second force transmission part is disposed on the second end face of the force receiving member, and the force receiving part is disposed on the end face of the force receiving member. One of the second force transmission part and the force receiving part is a concave structure, and the other is a convex structure. The concave and convex parts of the second force transmission part and the force receiving part correspond to each other, thereby forming the force transmission structure with concave and convex fit. The central angle of the concave structure is larger than the central angle of the convex structure, so that an energy storage idle stroke is formed between the force transmission member and the force receiving member.

[0010] In one embodiment, there are multiple second force-transmitting parts and multiple force-receiving parts, and the number of both is the same.

[0011] In one embodiment, the elastic element has multiple components arranged around the force transmission element; the movable end is provided with a connecting hook, and the force transmission element is provided with a radially protruding connecting portion, and the connecting hook is hooked onto the connecting portion to realize the connection between the movable end and the force transmission element.

[0012] In one embodiment, the force transmission component is a rotating component, and the elastic component is disposed on the outer periphery of the rotating shaft of the force transmission component. The elastic component is a helical compression spring. In the initial state, there is an angle between the length direction of the helical compression spring and the radial direction of the force transmission component. As the force transmission component rotates in the first direction, the helical compression spring is compressed and deformed by the force transmission component to store energy until the length direction of the helical compression spring is parallel to the radial direction of the force transmission component, reaching the energy storage dead point. The force transmission component continues to rotate, causing the helical compression spring to cross the energy storage dead point. The helical compression spring extends and recovers to release energy, and pushes the force transmission component to continue rotating in the first direction.

[0013] The technical solution of this utility model also includes: a switch electrical appliance having the above-mentioned operating mechanism.

[0014] In one embodiment, the switching device is a circuit breaker or a disconnector; the moving contact of the switching device is rotatably configured, and the moving contact and the force-bearing component of the operating mechanism are coaxially configured rotating components.

[0015] The beneficial effects of this utility model are:

[0016] 1. This utility model arranges the force-applying component, the force-transmitting component, and the force-receiving component adjacent to each other. The force-applying component, the force-transmitting component, and the force-receiving component are each integrally connected with a mating part (force-applying part, first force-transmitting part, second force-transmitting part, and force-receiving part) to form a force-applying / force-receiving transmission structure between adjacent parts, realizing the transmission between adjacent parts. The number of parts in the force transmission process is small, reducing the loss and error in the force transmission process, improving the efficiency and accuracy of force transmission, and making the operation of the parts more reliable.

[0017] 2. The force-applying component, force-transmitting component, and force-receiving component are all rotating components. These three components are arranged coaxially at intervals along the axis. The elastic component is then placed on the outer periphery of the rotating shaft of the force-transmitting component, so that the elastic component can deform and store energy as the force-transmitting component rotates, and can also push the force-transmitting component to rotate in the same direction as the elastic component recovers and releases energy. The overall structure is relatively compact and suitable for miniaturization of switching electrical appliances.

[0018] 3. By arranging the force-applying component, force-transmitting component, force-receiving component, and moving contact coaxially, the force transmission path becomes more reasonable, and the layout and operation of the parts become simpler. The elastic component is arranged on the outer periphery of the force-transmitting component's rotating shaft, which makes it easy to adjust the elastic force of the elastic component according to the force required for the moving contact's operation, thereby adjusting the force that drives the moving contact to operate during the recovery and energy release process. Attached Figure Description

[0019] Figure 1 This is a front view of an embodiment of the operating mechanism of this utility model.

[0020] Figure 2 This is a perspective view of the internal structure of an embodiment of the operating mechanism of this utility model.

[0021] Figure 3 This is a cross-sectional view of an embodiment of the operating mechanism of this utility model.

[0022] Figure 4 This is a structural diagram of the connection between the force transmission component and the elastic component in an embodiment of this utility model.

[0023] Figure 5 This is an exploded view of the force-applying component, force-transmitting component, and force-receiving component according to an embodiment of this utility model.

[0024] Figure 6 This is a connection structure diagram of the force-applying component and the force-transmitting component according to an embodiment of the present utility model.

[0025] Figure 7This is a connection structure diagram of the force transmission component and the force receiving component according to an embodiment of the present utility model.

[0026] Figure 8 This is a structural diagram of the force-applying component according to an embodiment of the present utility model.

[0027] Figure 9 This is a structural diagram of the force-bearing component according to an embodiment of the present invention, and the number of force-bearing parts is two.

[0028] Figure 10 This is a structural diagram of the force transmission component according to an embodiment of the present utility model. The number of second force transmission parts is two.

[0029] Figure 11 This is a structural diagram of the force-bearing component according to an embodiment of the present utility model. The number of force-bearing parts is three.

[0030] Figure 12 This is a structural diagram of the force transmission component according to an embodiment of the present utility model. The number of the second force transmission parts is three.

[0031] Figure 13 This is a structural diagram of the force-bearing component according to an embodiment of the present invention. The number of force-bearing parts is four.

[0032] Figure 14 This is a structural diagram of the force transmission component according to an embodiment of the present utility model. The number of second force transmission parts is four.

[0033] Figure 15 This is a structural schematic diagram of an embodiment of the switching device of this utility model.

[0034] The components include: 10 operating mechanism, 1 force-applying component, 102 force-applying transmission structure, 11 force-applying part, 110 force-applying protrusion, 2 force-transmitting component, 201 first end face, 202 second end face, 203 force-receiving transmission structure, 21 first force-transmitting part, 210 force-transmitting protrusion, 22 second force-transmitting part, 23 connecting part, 3 force-receiving component, 31 force-receiving part, 4 elastic component, 40 helical compression spring, 41 movable end, 42 fixed end, 5 base, 50 mounting cavity, 51 mounting part, 6 top cover; and 20 moving contact. Detailed Implementation

[0035] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0036] See Figures 1 to 5 as well as Figure 15As shown, this utility model discloses an operating mechanism 10 for controlling the moving contact 20 of a switching device to perform closing and opening actions. The operating mechanism 10 includes a force-applying component 1, a force-transmitting component 2, a force-receiving component 3, and an elastic component 4. The force-transmitting component 2, the force-receiving component 3, and the elastic component 4 are installed in the mounting cavity 50 formed by the base 5. The force-applying component 1 extends from the mounting cavity 50 of the base 5 through the upper cover 6 to the outside to connect to an external operating component such as a handle (not shown in the figure). Thus, the force-applying component 1 is used to apply external driving force and drive the force-transmitting component 2 to move through the force-transmitting transmission structure. The elastic component 4 is connected to the force-transmitting component 2. The elastic component 4 is used to deform and store energy under the drive of the force-transmitting component 2 by means of its connection with the force-transmitting component 2, and is also used to restore and release energy to drive the force-transmitting component 2 to move. In turn, the force-receiving component 3 is driven to move through the force-receiving transmission structure 203. The force-receiving component 3 is connected to the moving contact 20 to drive the moving contact 20 to perform closing and opening actions.

[0037] More specifically: The force-applying component 1 is connected to the handle for rotation when operated by hand, thereby driving the force-transmitting component 2 to rotate. During the rotation of the force-transmitting component 2, the movable end 41 of the elastic component 4 moves, causing the elastic component 4 to deform and store energy. The force-transmitting component 2 rotates until the elastic component 4 crosses the energy storage dead point, at which point the elastic component 4 returns to its original state and releases energy. At this time, the elastic component 4 drives the force-transmitting component 2 to rotate. During the rotation of the force-transmitting component 2, the force-receiving component 3 rotates, thereby driving the moving contact to move, realizing the closing and opening action of the moving contact 20. In addition to being connected to the handle for manual operation, the force-applying component 1 can also be connected to the tripping mechanism for operation under the drive of the tripping mechanism, or connected to other driving mechanisms for operation by other driving mechanisms.

[0038] See Figures 4 to 10 As shown, to achieve the transmission between the force-applying component 1 and the force-transmitting component 2, the force-applying component 1 is integrally connected to the force-applying part 11, and the force-transmitting component 2 is integrally connected to the first force-transmitting part 21. The force-applying part 11 and the first force-transmitting part 21 cooperate to form a force-applying transmission structure 102. To achieve the transmission between the force-transmitting component 2 and the force-receiving component 3, the force-transmitting component 2 is also integrally connected to the second force-transmitting part 22, and the force-receiving component 3 is integrally connected to the force-receiving part 31. The second force-transmitting part 22 and the force-receiving part 31 cooperate to form a force-receiving transmission structure 203. In this embodiment, the transmission between the force-applying component 1 and the force-transmitting component 2 is achieved through the force-applying part 11 and the first force-transmitting part 21, which are integrally connected to each other, and the transmission between the force-transmitting component 2 and the force-receiving component 3 is achieved through the second force-transmitting part 22 and the force-receiving part 31, which are integrally connected to each other. This makes the transmission structure between the force-applying component 1 and the force-transmitting component 2, as well as between the force-transmitting component 2 and the force-receiving component 3, simple, with fewer parts, reducing losses and errors in the force transmission process, improving the efficiency and accuracy of force transmission, and making the transmission between the force-applying component 1 and the force-transmitting component 2, as well as between the force-transmitting component 2 and the force-receiving component 3, more reliable.

[0039] See Figure 2 and Figure 4 As shown, the elastic element 4 has a movable end 41 and a fixed end 42. The movable end 41 is connected to the force transmission element 2, and the movable end 41 moves accordingly as the elastic element 4 deforms and recovers. More specifically, the movable end 41 and the fixed end 42 are respectively provided with connecting hooks. The force transmission element 2 is provided with a radially protruding connecting part 23. The connecting hook of the movable end 41 hooks onto the connecting part 23 to realize the connection between the movable end 41 and the force transmission element 2, thereby realizing the connection between the elastic element 4 and the force transmission element 2. The base 5 is provided with a mounting part 51, and the connecting hook of the fixed end 42 hooks onto the mounting part 51 to realize the fixed setting of the fixed end 42.

[0040] See Figure 2 , Figure 4 and Figure 5 As shown, in this embodiment, the force-applying component 1, the force-transmitting component 2, and the force-receiving component 3 are coaxially arranged rotating components and are arranged sequentially along the direction of rotation axis. The elastic component 4 is arranged on the outer periphery of the rotation axis of the force-transmitting component 2, so that the elastic component 4 can deform and store energy as the force-transmitting component 2 rotates, and can also push the force-transmitting component 2 to rotate in the same direction as the elastic component 4 recovers and releases energy.

[0041] In the entire operating mechanism, energy storage and power transmission can be achieved using only a few parts: force-applying component 1, force-transmitting component 2, force-receiving component 3, and elastic component 4. The power transmission path is more direct, and the transmission reliability is higher. Based on this, force-applying component 1, force-transmitting component 2, and force-receiving component 3 are each configured as rotating components and arranged coaxially. Elastic component 2 is placed on the periphery, resulting in a compact overall structure suitable for miniaturization of switching electrical appliances. Furthermore, the moving contact can be arranged coaxially with force-receiving component 3, i.e., the moving contact is arranged along the axial extension direction of the aforementioned three components. (See [reference needed]). Figure 15 As shown, for a switchgear with multiple moving contacts 20 arranged coaxially, arranging the force-applying component 1, force-transmitting component 2, force-receiving component 3, and moving contacts coaxially results in a more rational force transmission path and a simpler layout and operation mode of the components. The number of elastic components 4 can also be adjusted according to the number of moving contacts, thereby regulating the stored energy. For example, when a larger number of moving contacts requires greater force to drive them, increasing the number of elastic components 4 or selecting elastic components 4 with a larger elastic coefficient results in greater stored elastic energy release, driving the moving contacts with greater elastic force, increasing the speed of the moving contacts, and shortening the response time. Of course, the operating mechanism of this invention does not limit the relative positional relationship between the moving contacts and the force-receiving component 3 to a coaxial arrangement, as long as the power transmission between the two can be achieved.

[0042] See Figures 5 to 10As shown, in this embodiment, both the force-applying transmission structure 102 and the force-receiving transmission structure 203 are concave-convex mating structures. The force-applying part 11 is disposed on the end face of the force-applying member 1, and the first force-transmitting part 21 is disposed on the first end face 201 of the force-transmitting member 2. One of the force-applying part 11 and the first force-transmitting part 21 is a concave structure, and the other is a convex structure. The concave and convex parts of the force-applying part 11 and the first force-transmitting part 21 correspond to each other, thereby forming the concave-convex mating force-applying transmission structure 102. The second force-transmitting part 22 is disposed on the second end face 202 of the force-receiving member 2. The first end face 201 and the second end face 202 of the force-receiving member 2 are opposite end faces. The force-receiving part 31 is disposed on the end face of the force-receiving member 3. One of the second force-transmitting part 22 and the force-receiving part 31 is a concave structure, and the other is a convex structure. The concave and convex parts of the second force-transmitting part 22 and the force-receiving part 31 correspond to each other, thereby forming the concave-convex mating force-receiving transmission structure 203. In this embodiment, the force-applying part 11 and the second force-transmitting part 22 are protruding structures, while the first force-transmitting part 21 and the force-receiving part 31 are recessed structures. In other embodiments, the opposite can also be true, that is, the force-applying part 11 and the second force-transmitting part 22 are recessed structures, while the first force-transmitting part 21 and the force-receiving part 31 are protruding structures. This can also form a force-applying transmission structure 102 and a force-receiving transmission structure 203 with a concave-convex fit.

[0043] See Figure 6 and Figure 8 As shown, more specifically, in this embodiment, a force-applying part 11 is formed by two spaced-apart force-applying protrusions 110, that is, four force-applying protrusions 110 cooperate to form two force-applying parts 11, which form a concave-convex fit with the two first force-transmitting parts 21. This can reduce the thickness of the force-applying protrusions 110 (i.e., the dimension in the rotation direction of the force-applying member 1) and reduce the weight of the force-applying member 1. In other embodiments, the force-applying part 11 can also be formed by only one continuous force-applying protrusion 110.

[0044] See Figure 4 As shown, the first force transmission part 21 in this embodiment is formed by a groove between two adjacent force transmission protrusions 210.

[0045] See Figure 4 , Figure 6 and Figure 8 As shown, between the force-applying component 1 and the force-transmitting component 2, the central angle of the first force-transmitting part 21 of the recessed structure is larger than the central angle of the force-applying part 11 of the protruding structure, thus creating an energy release idle stroke between the force-applying component 1 and the force-transmitting component 2. (See reference...) Figure 7 , Figure 9 and Figure 10 As shown, between the force transmission member 2 and the force receiving member 3, the central angle of the force receiving part 31 of the recessed structure is greater than the central angle of the second force transmission part 22 of the protruding structure, so that an energy storage idle stroke is formed between the force transmission member 2 and the force receiving member 3.

[0046] The existence of the energy storage idle stroke allows the force transmission component 2 to rotate before the force receiving component 3 during the process of the force application component 1 rotating and causing the elastic component 4 to deform and store energy. Within the energy storage idle stroke range, the force application component 1 and the force transmission component 2 only need to overcome the elastic force of the elastic component 4 to rotate, without needing to drive the force receiving component 3 or the moving contact. This reduces the driving burden on the force application component 2, thereby reducing the force required for manual rotation of the handle. Only a smaller force is needed to achieve deformation and energy storage, and then the force released by the elastic component 4 is used to drive the moving contact, resulting in a faster moving contact speed. The existence of the energy release idle stroke allows the force transmission component 2 to rotate before the force application component 1 during the process of the force application component 2 rotating under the elastic force of the elastic component 4 and driving the force receiving component 3 and the moving contact. Within the energy release idle stroke range, the movements of the force transmission component 2, the force receiving component 3, and the moving contact are unaffected by the force application component 1, achieving movement independent of human intervention and preventing the slower speed of manual operation from affecting the moving contact's movement speed.

[0047] To ensure a more balanced force transmission, multiple second force transmission units 22 and force receiving units 31 are used, and the number of both is the same. For details, see [link to relevant documentation]. Figures 9 to 14 As shown, the number of the second force transmission part 22 and the force receiving part 31 can each be two ( Figure 9 , Figure 10 ), three ( Figure 11 , Figure 12 ) or four ( Figure 13 , Figure 14 The second force transmission part 22 and the force receiving part 31 are evenly arranged around their rotation axis. When the number of the second force transmission part 22 and the force receiving part 31 is small and the energy storage idle stroke remains unchanged, the angle of the second force transmission part 22 is larger and the angle of the boss 32 between adjacent force receiving parts 31 is also larger, which makes the strength of the second force transmission part 22 and the boss 32 greater, which is beneficial to improving the service life and operation reliability of the operating mechanism.

[0048] Of course, in other embodiments, the number of force-applying parts 11 and first force-transmitting parts 21 can also be two, three or four and the numbers correspond. Similarly, a smaller number of force-applying parts 11 and first force-transmitting parts 21 is beneficial to improving the service life and operational reliability of the operating mechanism.

[0049] See Figure 2 and Figure 4 As shown, the elastic element 4 in this embodiment is a helical compression spring 40. Four helical compression springs 40 are arranged around the force transmission element 2, so that the four helical compression springs can apply a balanced elastic force to the force transmission element 2 during the recovery and energy release process, making the movement of the force transmission element 2 more balanced. No matter which direction the moving contact extends along the radial direction of the force transmission element 2, the movement of the moving contact can be precisely controlled. The requirements for the relative positional relationship between the moving contact, the force receiving element 3, and the force transmission element 2 are relatively small. For switching electrical appliances with multiple sets of contacts for each pole moving contact, it is also beneficial to control the consistency of the movement of the multiple sets of moving contacts.

[0050] To ensure that the rotation direction of the force transmission member 2 is consistent during both the deformation and energy storage processes of the helical compression spring 40, the initial state has an angle between the length direction of the helical compression spring 40 and the radial direction of the force transmission member 2. As the force transmission member 2 rotates in the first direction (e.g., clockwise), the helical compression spring 40 is compressed and deformed to store energy until the length direction of the helical compression spring 40 is parallel to the radial direction of the force transmission member 2, reaching the energy storage dead point. The force transmission member 2 continues to rotate, causing the helical compression spring 40 to cross the energy storage dead point, extend, and restore its original state to release energy, thus pushing the force transmission member 2 to continue rotating in the first direction. The deformation of the helical compression spring 40 is relatively large, and its movable end 41 moves along a trajectory combining circular arc and straight line as the force transmission member 2 rotates. After crossing the energy storage dead point, it can push the force transmission member 2 to rotate in the same direction, achieving both energy storage and energy release of the helical compression spring.

[0051] In other embodiments, the elastic element 4 can also be other types of springs, such as a V-shaped compression spring or a helical tension spring, which stretches and deforms to store energy, and recovers and releases energy by contraction.

[0052] In the above embodiments, the force-applying transmission structure 102 and the force-receiving transmission structure 203 are disposed on the end face of the part. In other embodiments, the force-applying transmission structure 102 and the force-receiving transmission structure 203 may also be disposed on an annular surface.

[0053] The switching device described in this utility model refers to the switching device defined in GB / T 5226.1-2019 / IEC 60204-1:2016, that is, an electrical appliance used to connect or disconnect the current of one or more circuits, and its specific component form can be a circuit breaker, relay, disconnecting switch, etc. In this embodiment, the switching device is a circuit breaker; in other embodiments, the switching device can also be a disconnecting switch.

[0054] The operating mechanism's actions include driving the moving contact to close and driving the moving contact to open. The two actions are identical in process but opposite in direction. Taking manual operation as the power source for opening the circuit as an example, the operating mechanism's action process is detailed below:

[0055] When the circuit breaker needs to be opened, the user turns the handle to rotate the force-applying component 1. The force-transmitting component 2 rotates synchronously until it reaches the energy storage dead point of the helical compression spring 40, which is then compressed and stores energy. During this process, the force-transmitting component 2 rotates through the energy storage idle stroke between the force-transmitting component 2 and the force-receiving component 3, while the force-receiving component 3 and the moving contact remain stationary. The force-transmitting component 2 continues to rotate, and the helical compression spring 40 crosses the energy storage dead point and releases its energy. The force-transmitting component 2, the force-receiving component 3, and the moving contact rotate synchronously. This process relies on the energy release of the helical compression spring 40 to drive the rotation of the force-transmitting component 2, the force-receiving component 3, and the moving contact. Due to the existence of the energy release idle stroke, during the energy release process of the helical compression spring 40, the force-transmitting component 2 rotates through the energy release idle stroke. During the energy release idle stroke, the force-applying component 1 remains stationary, thus achieving an action independent of the force-applying component 1 and human intervention, completing the opening action of the moving contact.

[0056] The closing action of the moving contact is the same as the opening process described above, but in the opposite direction, and will not be repeated here.

[0057] The operating mechanism in the above embodiment includes an elastic element 4 to store and release energy, thereby improving the reliability of the operating mechanism. In other embodiments, the elastic element 4 may be omitted, and the closing and opening operations of the moving contact may be achieved by the transmission between the force-applying element 1, the force-transmitting element 2, and the force-receiving element 3.

[0058] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that the remaining undescribed parts are prior art, and that all changes in form and detail made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims fall within the protection scope of the present invention.

Claims

1. An operating mechanism for controlling the moving contact to perform closing and opening actions, characterized in that, The device includes a force-applying component, a force-transmitting component, and a force-receiving component. The force-applying component is integrally connected to a force-applying part, and the force-transmitting component is integrally connected to a first force-transmitting part. The force-applying part and the first force-transmitting part cooperate to form a force-applying transmission structure. The force-transmitting component is also integrally connected to a second force-transmitting part, and the force-receiving component is integrally connected to a force-receiving part. The second force-transmitting part and the force-receiving part cooperate to form a force-receiving transmission structure. The force-applying component is used to apply external driving force and drives the force-transmitting component to move through the force-applying transmission structure. The force-receiving component is connected to the moving contact to drive the moving contact to perform closing and opening actions.

2. The operating mechanism according to claim 1, characterized in that: The system also includes an elastic member connected to the force transmission member. The elastic member is used to deform and store energy under the drive of the force transmission member by means of its connection with the force transmission member, and is also used to restore and release energy to drive the force transmission member to move, thereby driving the force-receiving member to move through the force transmission structure.

3. The operating mechanism according to claim 2, characterized in that: The force-applying component, the force-transmitting component, and the force-receiving component are coaxially arranged rotating components and are arranged sequentially along the extension direction of the rotation axis. The elastic component is disposed on the outer periphery of the rotation axis of the force-transmitting component. The elastic component has a movable end and a fixed end. The movable end is connected to the force-transmitting component. The movable end moves accordingly as the elastic component deforms and recovers.

4. The operating mechanism according to claim 3, characterized in that: The force-applying part is disposed on the end face of the force-applying member, and the first force-transmitting part is disposed on the first end face of the force-transmitting member. One of the force-applying part and the first force-transmitting part is a concave structure and the other is a convex structure. The concave and convex parts of the force-applying part and the first force-transmitting part correspond to each other, thereby forming the force-applying transmission structure with concave and convex fit. The central angle of the concave structure is larger than the central angle of the convex structure, so that an energy release idle stroke is formed between the force-applying member and the force-transmitting member.

5. The operating mechanism according to claim 3, characterized in that: The second force transmission part is disposed on the second end face of the force receiving part, and the force receiving part is disposed on the end face of the force receiving part. One of the second force transmission part and the force receiving part is a concave structure and the other is a convex structure. The concave and convex parts of the second force transmission part and the force receiving part correspond to each other, thereby forming the force transmission structure with concave and convex fit. The central angle of the concave structure is larger than the central angle of the convex structure, so that an energy storage idle stroke is formed between the force transmission part and the force receiving part.

6. The operating mechanism according to claim 5, characterized in that: There are multiple second force transmission parts and multiple force receiving parts, and the number of both is the same.

7. The operating mechanism according to claim 3, characterized in that: The elastic element has multiple components arranged around the force transmission element; the movable end is provided with a connecting hook, and the force transmission element is provided with a radially protruding connecting part. The connecting hook is hooked onto the connecting part to realize the connection between the movable end and the force transmission element.

8. The operating mechanism according to claim 2, characterized in that: The force transmission component is a rotating component, and the elastic component is disposed on the outer periphery of the rotating shaft of the force transmission component. The elastic component is a helical compression spring. In the initial state, there is an angle between the length direction of the helical compression spring and the radial direction of the force transmission component. As the force transmission component rotates in the first direction, the helical compression spring is compressed and deformed by the force transmission component to store energy until the length direction of the helical compression spring is parallel to the radial direction of the force transmission component, reaching the energy storage dead point. The force transmission component continues to rotate, causing the helical compression spring to cross the energy storage dead point. The helical compression spring extends and recovers to release energy, and pushes the force transmission component to continue rotating in the first direction.

9. A switching device, characterized in that: The switching device has the operating mechanism as described in any one of claims 1-8.

10. A switching device according to claim 9, characterized in that: The switching device is a circuit breaker or a disconnecting switch; the moving contact of the switching device is rotatably arranged, and the moving contact and the force-bearing component of the operating mechanism are coaxially arranged rotating components.

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