Operating device and change-over switch

Abstract

The embodiment of the invention provides an operating device and a change-over switch, and relates to the technical field of low-voltage electric appliances. The operating device comprises a support, a main shaft, a first driving mechanism, a second driving mechanism, a movable part and a linkage part. The main shaft is rotatably arranged on the support. The first driving mechanism comprises a first electromagnet and a first energy storage connecting rod structure; the first energy storage connecting rod structure is connected with the main shaft; the second driving mechanism comprises a second electromagnet and a second energy storage connecting rod structure; the second energy storage connecting rod structure is connected with the main shaft; the movable part is connected with the first energy storage connecting rod structure and the second energy storage connecting rod structure, the linkage part is movably connected with the movable part, and the main shaft is movably connected to the linkage part; and the linkage piece is used for driving the main shaft to rotate after the idle stroke is completed so as to assist the main shaft to move. The primary opening speed and the arc extinguishing effect of the contact can be improved, so that the contact can be normally opened, and the reliability and the power utilization safety of the change-over switch are improved.

Description

Technical Field

[0001] This invention relates to the field of low-voltage electrical technology, and more specifically, to an operating device and a changeover switch. Background Technology

[0002] As a widely used terminal electrical device, the transfer switch can be divided into three main types according to its control method: automatic, manual, and automatic / manual combination. This device mainly uses an operating device to drive the contact mechanism to perform opening and closing actions, thereby achieving the switching between the main power supply and the backup power supply, ensuring the safe operation of the power system and the continuous stability of the production process.

[0003] In actual operation, current dual-power conversion equipment suffers from insufficient impact on the contacts due to frequent switching operations. This results in poor arc extinguishing and difficulty in effectively disconnecting the contacts, severely affecting the normal tripping function of the transfer switch. Summary of the Invention

[0004] The purpose of this invention is to provide an operating device and a changeover switch that can improve the initial contact breaking speed and arc extinguishing effect, enabling the contacts to break normally and improving the reliability and electrical safety of the changeover switch.

[0005] The embodiments of the present invention are implemented as follows: In a first aspect, the present invention provides an operating device, comprising: support; A main shaft, which is rotatably mounted on the bracket; A first driving mechanism, comprising a first electromagnet and a first energy storage link structure connected together, wherein the first electromagnet is disposed on the bracket, the first energy storage link structure is rotatably connected to the bracket, and the first energy storage link structure is connected to the main shaft; The second drive mechanism includes a second electromagnet and a second energy storage link structure connected to each other. The second electromagnet is disposed on the bracket, and the second energy storage link structure is rotatably connected to the bracket and connected to the main shaft. A movable component, movably disposed on the bracket, and connected to both the first energy storage linkage structure and the second energy storage linkage structure; and A linkage component is provided, which is connected to the movable component. The main shaft is movably connected to the linkage component and has a free stroke between it and the linkage component. The first drive mechanism or the second drive mechanism is used to drive the movable component to move relative to the bracket, thereby driving the linkage component to move. After the free stroke is completed, the linkage component is used to drive the main shaft to rotate, so as to assist the main shaft to move.

[0006] In an optional embodiment, the linkage has a rotating hole, and the peripheral wall of the rotating hole is provided with a first actuating part and a second actuating part that are spaced apart; the spindle includes a spindle body and a rotating part, the spindle body is rotatably mounted on the bracket, and the rotating part is sleeved on the spindle body and rotatably mounted in the rotating hole; The rotating member is provided with a rotating protrusion, which is located between the first actuating part and the second actuating part. After the linkage member completes its idle stroke, the first actuating part or the second actuating part abuts against the rotating protrusion.

[0007] In an optional embodiment, the spindle body has a socket located on the side of the rotating member away from the bracket; the spindle also includes a pin disposed in the socket, and the rotating member is located between the pin and the bracket.

[0008] In an optional embodiment, the movable component includes a movable plate and a connecting plate connected to each other. The movable plate is movably disposed on the bracket, and the first energy storage linkage structure, the movable plate, and the second energy storage linkage structure are sequentially hinged together; the connecting plate is connected to the linkage component.

[0009] In an optional embodiment, the bracket is provided with a first limiting member and a second limiting member. The first energy storage link structure is used to abut against the first limiting member to form a locked state, and the first energy storage link structure is provided with a first connecting shaft. The second energy storage link structure is used to abut against the second limiting member to form a locked state, and the second energy storage link structure is provided with a second connecting shaft. The operating device further includes an unlocking component, which is fixedly connected to the linkage component. The unlocking component is used to move relative to the support under the drive of the first electromagnet or the second electromagnet to move the movable component relative to the support, thereby actuating the first connecting shaft or the second connecting shaft to release the locking state.

[0010] In an optional embodiment, the unlocking member is disposed on the main shaft. Before the linkage completes the empty stroke, the unlocking member abuts against the first connecting shaft or the second connecting shaft to release the locking state.

[0011] In an optional embodiment, the movable plate is located at the top of the bracket, and the connecting plate and the linkage are both located on the same side of the bracket; and / or, The linkage component has a guide hole at one end near the connecting plate, and a connecting shaft is provided at the end of the connecting plate away from the movable plate, with the connecting shaft passing through the guide hole.

[0012] In an optional embodiment, the movable plate has a movable groove at one end away from the connecting plate, and the bracket has a limiting shaft disposed in the movable groove.

[0013] In an optional embodiment, the first energy storage linkage structure includes a first closing lever, a first upper linkage, a first lower linkage, and a first energy storage elastic element. The first closing lever, the first upper linkage, the first lower linkage, and the main shaft are hinged sequentially. One end of the first energy storage elastic element is connected to the first closing lever, and the other end is connected to the hinge joint of the first upper linkage and the first lower linkage. The first closing lever and the first upper linkage are rotatably connected to the bracket, and the first electromagnet is movably connected to the first closing lever. The second energy storage linkage structure includes a second closing lever, a second upper linkage, a second lower linkage, and a second energy storage elastic element. The second closing lever, the second upper linkage, the second lower linkage, and the main shaft are hinged in sequence. One end of the second energy storage elastic element is connected to the second closing lever, and the other end is connected to the hinge joint of the second upper linkage and the second lower linkage. The second closing lever and the second upper linkage are rotatably connected to the bracket. The second electromagnet is movably connected to the second closing lever. The first closing lever, the movable component, and the second closing lever are hinged together in sequence.

[0014] In an optional embodiment, the energy storage stroke of the first energy storage elastic member and the second energy storage elastic member is less than the idle stroke, so that the linkage drives the main shaft to rotate when the first energy storage elastic member or the second energy storage elastic member releases energy.

[0015] In an optional embodiment, the bracket includes a first bracket, a second bracket, and at least one fixed shaft, wherein the first bracket and the second bracket are spaced apart, and the two ends of the at least one fixed shaft are respectively connected to the first bracket and the second bracket. The main shaft is rotatably connected to both the first support and the second support. The first electromagnet, the first energy storage link structure, the second electromagnet, and the second energy storage link structure are all located between the first support and the second support, and both the first energy storage link structure and the second energy storage link structure are rotatably connected to both the first support and the second support. The movable component is movably connected to both the first support and the second support.

[0016] Secondly, the present invention provides a changeover switch, including the operating device described in any of the foregoing embodiments.

[0017] The beneficial effects of the embodiments of the present invention include: When the first or second electromagnet of the operating device is energized, it can drive the first or second energy storage linkage structure to rotate relative to the support, and drive the movable part to move relative to the support. During the movement of the movable part, through the cooperation of the linkage with the movable part and the main shaft, the driving force of the electromagnet can also be transmitted to the linkage through the movable part, thereby actuating the main shaft, so that the main shaft also rotates relative to the support, thereby further enhancing the force applied to the main shaft. This improves the initial contact breaking speed and arc extinguishing effect when the power supply is tripped, so that the contacts can break normally, thereby improving the reliability of the changeover switch and the safety of electricity use.

[0018] The changeover switch includes an operating device that has all the beneficial effects of that operating device. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a schematic diagram of the structure of the operating device provided in an embodiment of the present invention; Figure 2 This is a partial structural schematic diagram of the operating device provided in an embodiment of the present invention; Figure 3 A schematic diagram showing the operating device provided in an embodiment of the present invention in a first closed state; Figure 4 A schematic diagram illustrating the power switching process of the operating device provided in this embodiment of the invention; Figure 5 A schematic diagram showing the operating device provided in an embodiment of the present invention in a second closing state; Figure 6 This is an assembly diagram of the spindle, connecting plate, and linkage components provided in an embodiment of the present invention. Figure 7 A first-view assembly diagram of the spindle and linkage components provided in an embodiment of the present invention; Figure 8 An exploded view of the operating device provided in an embodiment of the present invention; Figure 9 This is a second-view assembly diagram of the spindle and linkage components provided in an embodiment of the present invention.

[0021] Icons: 100-Operating device; 10-Bracket; 11-First bracket; 12-Second bracket; 13-Fixed shaft; 14-Limiting shaft; 15-First limiting component; 16-Second limiting component; 17-First arc-shaped groove; 18-Second arc-shaped groove; 20-Main shaft; 21-Main shaft body; 211-Socket; 22-Rotating component; 221-Rotating protrusion; 23-Pin; 24-Main shaft seat; 30-First drive mechanism; 31-First electromagnet; 32-First energy storage linkage structure; 321-First closing lever; 322-First upper linkage; 323-First lower linkage; 324-First energy storage elastic component; 325-First link 40-Second drive mechanism; 41-Second electromagnet; 42-Second energy storage linkage structure; 421-Second closing lever; 422-Second upper linkage; 423-Second lower linkage; 424-Second energy storage elastic element; 425-Second connecting shaft; 50-Moving element; 51-Moving plate; 511-Moving groove; 52-Connecting plate; 521-Connecting shaft; 60-Linkage element; 61-Rotation hole; 62-First actuating part; 63-Second actuating part; 64-Guide hole; 70-Unlocking element; 71-First unlocking part; 711-First actuation groove; 72-Connecting part; 73-Second unlocking part; 731-Second actuation groove. Detailed Implementation

[0022] 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.

[0023] 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.

[0024] 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.

[0025] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. 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. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] As described in the background section, during actual operation, dual power supply conversion equipment suffers from frequent switching operations. The existing operating device has insufficient impact capability on the contacts and poor arc extinguishing effect, making it difficult for the contacts to effectively disconnect, which seriously affects the normal tripping function of the conversion switch.

[0029] Based on this, please refer to Figures 1-9 The present invention provides an operating device 100 and a changeover switch, which can effectively improve the aforementioned technical problems. It can increase the initial contact breaking speed and arc extinguishing effect, enabling the contacts to break normally and improving the reliability and electrical safety of the changeover switch. The operating device 100 and the changeover switch will be described in detail below.

[0030] This embodiment provides a changeover switch (not shown in the figure). The changeover switch includes an operating device 100 and a contact device. The operating device 100 is used to drive the contact device to perform opening and closing actions to realize the switching between the main power supply and the backup power supply, thereby ensuring the safe operation of the power system and the continuous stability of the production process.

[0031] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the operating device 100 provided in this embodiment. Figure 2 This is a partial structural schematic diagram of the operating device 100 provided in this embodiment. (In conjunction with...) Figure 1 and Figure 2 The operating device 100 includes a bracket 10, a main shaft 20, a first drive mechanism 30, a second drive mechanism 40, a movable part 50, and a linkage part 60.

[0032] Specifically, the main shaft 20 is rotatably mounted on the support 10. The first drive mechanism 30 includes a first electromagnet 31 and a first energy storage link structure 32 connected together. The first electromagnet 31 is mounted on the support 10, and the first energy storage link structure 32 is rotatably connected to the support 10 and connected to the main shaft 20. The second drive mechanism 40 includes a second electromagnet 41 and a second energy storage link structure 42 connected together. The second electromagnet 41 is mounted on the support 10, and the second energy storage link structure 42 is rotatably connected to the support 10 and connected to the main shaft 20. A movable member 50 is movably mounted on the support 10 and is connected to both the first energy storage link structure 32 and the second energy storage link structure 42. Linkage 60 is connected to movable part 50; spindle 20 is movably connected to linkage 60 and has a free stroke between it and linkage 60; first drive mechanism 30 or second drive mechanism 40 is used to drive movable part 50 to move relative to bracket 10, thereby driving linkage 60 to move. After the free stroke is completed, linkage 60 is used to drive spindle 20 to rotate, so as to assist spindle 20 to move.

[0033] It is easy to understand that when the first electromagnet 31 or the second electromagnet 41 is energized, it can drive the first energy storage link structure 32 or the second energy storage link structure 42 to rotate relative to the bracket 10, and drive the movable part 50 to move relative to the bracket 10. During the movement of the movable part 50, it pushes the second energy storage link structure 42 or the first energy storage link structure 32 to rotate relative to the bracket 10. In this process, by setting the linkage 60 to cooperate with the movable part 50 and the main shaft 20, the driving force of the electromagnet can also be transmitted to the linkage 60 through the movable part 50, thereby actuating the main shaft 20, so that the main shaft 20 also rotates relative to the bracket 10, so as to further enhance the force applied to the main shaft 20. Thus, when the power supply is performing a tripping operation, the initial contact speed and arc extinguishing effect are improved, ensuring the normal tripping function of the transfer switch, thereby improving the reliability of the transfer switch and the safety of electricity use.

[0034] To better illustrate the switching process between main power and backup power by the operating device 100, please refer to [link / reference]. Figures 3-5 , Figure 3This is a schematic diagram showing the operating device 100 provided in this embodiment in a first closed state. Figure 4 This is a schematic diagram illustrating the power switching process of the operating device 100 provided in this embodiment. Figure 5 This is a schematic diagram of the operating device 100 provided in this embodiment in a second closing state.

[0035] It should be noted that, in combination Figure 3 The first closing state is that the first electromagnet 31 is energized, the second electromagnet 41 is de-energized, and the main power supply is in the closed state; combined with Figure 5 The second closing state is that the second electromagnet 41 is energized, the first electromagnet 31 is de-energized, and the backup power supply is in the closed state. Figure 4 As shown, this is the process of switching from the main power supply to the backup power supply. During this process, the first electromagnet 31 is de-energized and its iron core gradually retracts; the second electromagnet 41 is energized and its iron core gradually extends. Under the driving action of the second electromagnet 41, the movable part 50 moves relative to the bracket 10 and drives the linkage 60 to rotate counterclockwise, thereby also driving the main shaft 20 to rotate counterclockwise, so as to improve the initial contact separation speed and thus improve the reliability and electrical safety of the changeover switch.

[0036] Please continue to combine Figure 1 and Figure 2 The movable component 50 includes a movable plate 51 and a connecting plate 52 connected to each other. The movable plate 51 is movably mounted on the bracket 10, and the first energy storage linkage structure 32, the movable plate 51, and the second energy storage linkage structure 42 are sequentially hinged. The connecting plate 52 is connected to the linkage component 60. By setting the movable plate 51 and the connecting plate 52, the linkage stability between the first energy storage linkage structure 32 and the second energy storage linkage structure 42 can be improved, while the stability of the linkage component 60 actuating the main shaft 20 can be enhanced, thereby further improving the reliability of the changeover switch and the electrical safety.

[0037] Further, please refer to Figure 6 and Figure 7 , Figure 6 This is an assembly diagram of the spindle 20, connecting plate 52, and linkage 60 provided for this embodiment. Figure 7 This is a first-view assembly diagram of the spindle 20 and the linkage 60 provided in this embodiment. (Combined with...) Figure 1 , Figure 6 and Figure 7The linkage 60 has a rotating hole 61, and the peripheral wall of the rotating hole 61 is provided with a first actuating part 62 and a second actuating part 63 that are spaced apart. The spindle 20 includes a spindle body 21 and a rotating part 22. The spindle body 21 is rotatably mounted on the bracket 10, and the rotating part 22 is sleeved on the spindle body 21 and rotatably mounted in the rotating hole 61. The rotating part 22 has a rotating protrusion 221, which is located between the first actuating part 62 and the second actuating part 63. After the linkage 60 completes its idle stroke, the first actuating part 62 or the second actuating part 63 abuts against the rotating protrusion 221.

[0038] Understandably, the movable part 50 drives the linkage part 60 to rotate relative to the bracket 10, so that the first actuating part 62 or the second actuating part 63 can abut against the rotating protrusion 221. When the two abut against each other, the first actuating part 62 or the second actuating part 63 will impact the rotating protrusion 221, thereby driving the rotating part 22 and the main shaft body 21 to rotate as a whole. For example Figure 4 As shown, the rotating protrusion 221 abuts against the second actuating part 63. This impact force can increase the initial breaking speed of the contacts, enabling the contacts to break normally, thereby ensuring the normal opening function of the transfer switch and improving the reliability and electrical safety of the transfer switch.

[0039] It should be noted that the stroke of the rotating protrusion 221 between the first actuating part 62 and the second actuating part 63 can be understood as the aforementioned idle stroke. During this stroke, the rotating protrusion 221 does not abut against the first actuating part 62 or the second actuating part 63 (e.g., Figure 3 and Figure 5 As shown in the diagram, at this point, the core of the first electromagnet 31 or the second electromagnet 41 has just begun to extend, driving the first energy storage link structure 32 and the second energy storage link structure 42 to store energy. Then, the core continues to extend, and at the end of its stroke, the rotating protrusion 221 abuts against the first actuating part 62 or the second actuating part 63. Because the force redundancy at the end of the electromagnet core's stroke is relatively large, the impact force on the rotating protrusion 221 is large, resulting in a good impact effect. Therefore, in this embodiment, by setting the cooperation between the movable part 50 and the linkage part 60, this large impact force is transmitted to the main shaft 20, thereby increasing the initial sliding speed of the main shaft 20.

[0040] Combination Figures 5-7 In this embodiment, the spindle body 21 has a socket 211, which is located on the side of the rotating member 22 away from the bracket 10; the spindle 20 also includes a pin 23, which is disposed in the socket 211, and the rotating member 22 is located between the pin 23 and the bracket 10.

[0041] In other words, by setting the pin 23, the rotating part 22 can be fixed between the pin 23 and the bracket 10, ensuring its stability during rotation; at the same time, the cooperation between the pin 23 and the socket 211 can also facilitate the installation or removal of the rotating part 22, improving the efficiency of assembly and subsequent maintenance.

[0042] Furthermore, the linkage 60 has a guide hole 64 at one end near the connecting plate 52, and a connecting shaft 521 is provided at the end of the connecting plate 52 away from the movable plate 51. The connecting shaft 521 passes through the guide hole 64. It should be noted that the guide hole 64 is specifically an elongated hole, and the connecting shaft 521 can move within this elongated hole to compensate for changes in the height of the guide hole 64, thereby enabling the linkage 60 to rotate relative to the connecting plate 52 under the drive of the movable plate 51.

[0043] To limit the travel of the movable plate 51 and improve stability during opening and closing, a movable groove 511 is provided at the end of the movable plate 51 away from the connecting plate 52. A limiting shaft 14 is provided on the bracket 10, and the limiting shaft 14 is located in the movable groove 511. By placing the movable groove 511 at the end of the movable plate 51 away from the connecting plate 52, interference between the limiting shaft 14 and other structures on one side of the connecting plate 52 can be avoided, ensuring normal cooperation between the connecting plate 52 and the linkage 60, further improving the effect of actuating the impact spindle 20, and enhancing the contact breaking stability.

[0044] Please continue to combine Figure 1 and Figure 2 In this embodiment, the movable plate 51 is located at the top of the bracket 10, and the connecting plate 52 and the linkage 60 are both located on the same side of the bracket 10. With this arrangement, on the one hand, the effect of actuating the impact spindle 20 can still be guaranteed, and the contact breaking stability can be improved; on the other hand, the overall structural layout of the operating device 100 can be optimized, the number of connecting parts can be reduced, and the overall structural volume can be reduced.

[0045] It should be noted that in other embodiments, the movable plate 51 can also be set in other positions of the bracket 10, and the connecting plate 52 and the linkage 60 can also be located on different sides, as long as the impact on the main shaft 20 can be achieved to increase its initial splitting speed.

[0046] Please refer to Figure 8 and Figure 9 , Figure 8 This is an exploded view of the operating device 100 provided in this embodiment. Figure 9 This is a second-view assembly diagram of the spindle 20 and the linkage 60 provided in this embodiment, combined with... Figure 8 and Figure 9The bracket 10 is provided with a first limiting member 15 and a second limiting member 16. A first energy storage link structure 32 is used to abut against the first limiting member 15 to form a locked state, and the first energy storage link structure 32 is provided with a first connecting shaft 325. A second energy storage link structure 42 is used to abut against the second limiting member 16 to form a locked state, and the second energy storage link structure 42 is provided with a second connecting shaft 425. The operating device 100 also includes an unlocking member 70, which is fixedly connected to the linkage member 60. The unlocking member 70 is used to move relative to the bracket 10 under the drive of the first electromagnet 31 or the second electromagnet 41 to drive the movable member 50 to move relative to the bracket 10, thereby actuating the first connecting shaft 325 or the second connecting shaft 425, thereby releasing the locked state.

[0047] As is easily understood, by cooperating with the unlocking component 70 and the movable component 50, the driving force of the electromagnet can also be transmitted to the unlocking component 70 through the movable component 50, causing the unlocking component 70 to move relative to the bracket 10, thereby actuating the first connecting shaft 325 or the second connecting shaft 425. This causes the first energy storage link structure 32 to separate from the first limiting component 15, or the second energy storage link structure 42 to separate from the second limiting component 16, thus releasing the locking state of both. In other words, through the cooperation between the electromagnet, the energy storage link structure, the movable component 50, the unlocking component 70, the limiting component, and the connecting shaft, the link structure can be forcibly unlocked, thereby ensuring the effective transmission of the impact force of the assist structure before unlocking and reducing the damage of the impact force to the link structure, thus improving the overall reliability of the changeover switch operation.

[0048] It should be noted that the linkage 60 can be understood as the aforementioned assist structure, and there is a rotational free stroke between the linkage 60 and the main shaft 20. Under the driving action of the electromagnet, the movable part 50 is pushed to move relative to the bracket 10 through the first energy storage link structure 32 or the second energy storage link structure 42, thereby driving the linkage 60 to rotate relative to the main shaft 20. In the initial stage of rotation, it is a rotational free stroke process. During this process, the linkage 60 will not impact the main shaft 20. Instead, the linkage 60 first drives the unlocking part 70 to move, thereby causing the unlocking part 70 to actuate the first connecting shaft 325 or the second connecting shaft 425, realizing the unlocking of the energy storage link structure. After unlocking is completed, the linkage 60 will complete the free stroke and then impact the main shaft 20, providing assistance to the main shaft 20 and driving the main shaft 20 to rotate relative to the bracket 10, thereby increasing the initial separation speed of the contact and preventing the main shaft 20 from jamming.

[0049] Furthermore, the unlocking component 70 is disposed on the main spindle 20. Before the linkage component 60 completes its empty stroke, the unlocking component 70 abuts against the first connecting shaft 325 or the second connecting shaft 425 to release the locking state and prevent the main spindle 20 from jamming.

[0050] In other words, the unlocking process of the unlocking component 70 to unlock the linkage structure occurs before the linkage component 60 impacts the main shaft 20. Therefore, it can prevent the impact force from being absorbed by the linkage mechanism, ensure that the impact force can be effectively transmitted to the contact device through the main shaft 20, and reduce damage to the linkage structure, thereby improving the overall operational reliability of the changeover switch.

[0051] Please continue to combine Figure 8 and Figure 9 Specifically, the unlocking component 70 includes a first unlocking part 71, a connecting part 72, and a second unlocking part 73 connected in sequence. The first unlocking part 71 is used to actuate the first connecting shaft 325, and the second unlocking part 73 is used to actuate the second connecting shaft 425. The connecting part 72 is movably connected to the movable component 50, and the main shaft 20 passes through the connecting part 72.

[0052] Understandably, in this embodiment, the connecting part 72 is indirectly connected to the movable part 50 through the linkage 60. When the unlocking part 70 rotates clockwise under the action of the linkage 60, the first unlocking part 71 actuates the first connecting shaft 325, thereby unlocking and separating the first energy storage link structure 32 from the first limiting member 15. Conversely, when the unlocking part 70 rotates counterclockwise, the second unlocking part 73 actuates the second connecting shaft 425, thereby unlocking and separating the second energy storage link structure 42 from the second limiting member 16.

[0053] To improve the actuation effect and enhance stability during the unlocking process, the first unlocking part 71 has a first actuation groove 711 on the side near the movable member 50, which is used to cooperate with the first connecting shaft 325. Similarly, the second unlocking part 73 has a second actuation groove 731 on the side near the movable member 50, which is used to cooperate with the second connecting shaft 425.

[0054] It should be noted that, specifically in this embodiment, both the first actuation groove 711 and the second actuation groove 731 are arc-shaped groove structures, which can better cooperate with the first connecting shaft 325 and the second connecting shaft 425 to move, further improving the stability during the unlocking process.

[0055] Furthermore, in order to improve the actuation effect of the first connecting shaft 325 and the second connecting shaft 425 and further enhance the stability during the unlocking process, in this embodiment, the bracket 10 is provided with a first arc-shaped groove 17 and a second arc-shaped groove 18 spaced apart. The first connecting shaft 325 is slidably disposed in the first arc-shaped groove 17, and the second connecting shaft 425 is slidably disposed in the second arc-shaped groove 18.

[0056] Please continue to combine Figure 8Specifically, the support 10 includes a first support 11, a second support 12, and at least one fixed shaft 13. The first support 11 and the second support 12 are spaced apart, and the two ends of the at least one fixed shaft 13 are respectively connected to the first support 11 and the second support 12. The main shaft 20 is rotatably connected to both the first support 11 and the second support 12. The first electromagnet 31, the first energy storage link structure 32, the second electromagnet 41, and the second energy storage link structure 42 are all located between the first support 11 and the second support 12, and both the first energy storage link structure 32 and the second energy storage link structure 42 are rotatably connected to both the first support 11 and the second support 12. The movable member 50 is movably connected to both the first support 11 and the second support 12.

[0057] It should be noted that, specifically in this embodiment, the main shaft body 21 passes through both the first bracket 11 and the second bracket 12, the limiting shaft 14 is disposed on the top of the second bracket 12, the movable plate 51 is movably disposed on the tops of both the first bracket 11 and the second bracket 12, and the connecting plate 52 and the linkage member 60 are both located on the side of the first bracket 11 away from the second bracket 12. It is readily understood that, in some other embodiments, the linkage member 60 and the connecting plate 52 may also be disposed between the first bracket 11 and the second bracket 12.

[0058] In addition, it should be noted that in this embodiment, the number of fixed shafts 13 is three. Of course, in other embodiments, the number of fixed shafts 13 can be one, two, or four, etc.

[0059] Please continue to combine Figure 8 Specifically, the first energy storage linkage structure 32 includes a first closing lever 321, a first upper linkage 322, a first lower linkage 323, and a first energy storage elastic element 324. The first closing lever 321, the first upper linkage 322, the first lower linkage 323, and the main shaft 20 are hinged in sequence. One end of the first energy storage elastic element 324 is connected to the first closing lever 321, and the other end is connected to the hinge joint of the first upper linkage 322 and the first lower linkage 323. The first closing lever 321 and the first upper linkage 322 are rotatably connected to the bracket 10, and the first electromagnet 31 is movably connected to the first closing lever 321.

[0060] The second energy storage linkage structure 42 includes a second closing lever 421, a second upper linkage 422, a second lower linkage 423, and a second energy storage elastic element 424. The second closing lever 421, the second upper linkage 422, the second lower linkage 423, and the main shaft 20 are hinged in sequence. One end of the second energy storage elastic element 424 is connected to the second closing lever 421, and the other end is connected to the hinge joint of the second upper linkage 422 and the second lower linkage 423. The second closing lever 421 and the second upper linkage 422 are rotatably connected to the bracket 10, and the second electromagnet 41 is movably connected to the second closing lever 421. The first closing lever 321, the movable element 50, and the second closing lever 421 are hinged in sequence.

[0061] As is easily understood, the driving action of the first electromagnet 31 transmits force sequentially through the first closing lever 321, the first upper connecting rod 322, and the first lower connecting rod 323 to store energy in the first energy storage elastic element 324. After energy storage, the first energy storage elastic element 324 releases energy, thereby driving the main shaft 20 to rotate, thus achieving the switching between the main power supply and the backup power supply. During this process, the cooperation between the moving part 50 and the linkage part 60 allows the first energy storage elastic element 324 to impact the main shaft 20 before, during, or after passing the neutral point, increasing its initial breaking speed, achieving normal contact breaking, and improving the arc extinguishing effect. The driving method of the second electromagnet 41 is the same as that of the first electromagnet 31, and will not be described in detail here.

[0062] It should be noted that the neutral point mentioned above refers to the intersection formed by the first energy storage elastic element 324, the first upper connecting rod 322, and the first lower connecting rod 323. When the first energy storage elastic element 324 passes through the neutral point, the force direction between the first upper connecting rod 322 and the first lower connecting rod 323 will change. That is, the first energy storage elastic element 324 will switch between energy storage and energy release. Thus, the energy release of the first energy storage elastic element 324 drives the first lower connecting rod 323 to drive the main shaft 20 to rotate, thereby performing the opening and closing operation of the contact device of the changeover switch. Therefore, the position where the linkage 60 impacts the main shaft 20 to increase the initial opening speed can be the process before, during, or after the first energy storage elastic element 324 passes through the neutral point.

[0063] The design of this idle stroke allows the first energy storage elastic element 324 or the second energy storage elastic element 424 to deform and store energy. Preferably, the idle stroke is longer than the energy storage stroke of the first energy storage elastic element 324 or the second energy storage elastic element 424 (i.e., the first energy storage elastic element 324 or the second energy storage elastic element 424 has passed the neutral point when the idle stroke is completed), ensuring that when the linkage 60 impacts the spindle 20 to assist the spindle 20's movement, the first energy storage elastic element 324 or the second energy storage elastic element 424 is in the energy release process driving the spindle 20 to move, while the linkage 60 is also driving the spindle 20 to move, ensuring the switching speed of the contacts throughout the switching process. Further, in other embodiments, the unlocking element 70 abuts against the first connecting shaft 325 or the second connecting shaft 425 to release the locking state before the linkage 60 completes the idle stroke and before the first energy storage elastic element 324 or the second energy storage elastic element 424 completes its energy storage, preventing the spindle 20 from jamming.

[0064] In addition, it should be noted that, specifically in this embodiment, both ends of the first closing lever 321, both ends of the first upper connecting rod 322, both ends of the second closing lever 421, and both ends of the second upper connecting rod 422 can be rotatably connected to the first bracket 11 and the second bracket 12.

[0065] In addition, in order to facilitate the linkage between the first lower connecting rod 323 and the second lower connecting rod 423 and the main spindle 20 and improve the stability of the opening and closing operation, in this embodiment, the main spindle 20 also includes a main spindle seat 24, which is sleeved on the main spindle body 21, and the first lower connecting rod 323, the main spindle seat 24 and the second lower connecting rod 423 are hinged in sequence.

[0066] In summary, embodiments of the present invention provide an operating device 100 and a changeover switch. The operating device 100 includes a support 10, a main shaft 20, a first drive mechanism 30, a second drive mechanism 40, a movable component 50, and a linkage component 60. The main shaft 20 is rotatably mounted on the support 10. The first drive mechanism 30 includes a first electromagnet 31 and a first energy storage link structure 32 connected together. The first electromagnet 31 is mounted on the support 10, and the first energy storage link structure 32 is rotatably connected to the support 10 and connected to the main shaft 20. The second drive mechanism 40 includes a second electromagnet 41 and a second energy storage link structure 42 connected together. The second electromagnet 41... The second energy storage link structure 42 is rotatably connected to the support 10 and connected to the main shaft 20. The movable member 50 is movably disposed on the support 10 and is connected to both the first energy storage link structure 32 and the second energy storage link structure 42. The linkage member 60 is connected to the movable member 50. The main shaft 20 is movably connected to the linkage member 60 and has a free stroke between them. The first electromagnet 31 or the second electromagnet 41 is used to drive the movable member 50 to move relative to the support 10, thereby driving the linkage member 60 to move. After the free stroke is completed, the linkage member 60 drives the main shaft 20 to rotate to assist the main shaft 20 in its movement.

[0067] When the first electromagnet 31 or the second electromagnet 41 is energized, it can drive the first energy storage link structure 32 or the second energy storage link structure 42 to rotate relative to the bracket 10, and drive the movable part 50 to move relative to the bracket 10. During the movement of the movable part 50, it pushes the second energy storage link structure 42 or the first energy storage link structure 32 to rotate relative to the bracket 10. In this process, by setting the linkage 60 to cooperate with the movable part 50 and the main shaft 20, the driving force of the electromagnet can also be transmitted to the linkage 60 through the movable part 50, thereby actuating the main shaft 20, so that the main shaft 20 also rotates relative to the bracket 10, so as to further enhance the force applied to the main shaft 20. This improves the initial contact breaking speed and arc extinguishing effect when the power supply is tripped, so that the contacts can break normally, thereby improving the reliability of the changeover switch and the safety of electricity use.

[0068] The changeover switch includes an operating device 100, which has all the functions and benefits of the operating device 100.

[0069] The above description is merely a specific embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An operating device, characterized in that, include: Support (10); Main shaft (20), which is rotatably mounted on the bracket (10); The first drive mechanism (30) includes a first electromagnet (31) and a first energy storage link structure (32) connected to each other. The first electromagnet (31) is disposed on the bracket (10), and the first energy storage link structure (32) is rotatably connected to the bracket (10). The first energy storage link structure (32) is connected to the main shaft (20). The second drive mechanism (40) includes a second electromagnet (41) and a second energy storage link structure (42) connected to each other. The second electromagnet (41) is disposed on the bracket (10), and the second energy storage link structure (42) is rotatably connected to the bracket (10). The second energy storage link structure (42) is connected to the main shaft (20). Movable component (50), the movable component (50) is movably disposed on the bracket (10), and the movable component (50) is connected to the first energy storage link structure (32) and the second energy storage link structure (42) respectively; and Linkage component (60) is connected to the movable component (50). The main shaft (20) is movably connected to the linkage component (60) and has a free stroke between it and the linkage component (60). The first drive mechanism (30) or the second drive mechanism (40) is used to drive the movable component (50) to move relative to the bracket (10), thereby driving the linkage component (60) to move. The linkage component (60) is used to drive the main shaft (20) to rotate after the free stroke is completed, so as to assist the main shaft (20) to move.

2. The operating device according to claim 1, characterized in that, The linkage (60) has a rotating hole (61), and the peripheral wall of the rotating hole (61) is provided with a first actuating part (62) and a second actuating part (63) arranged at intervals; the main shaft (20) includes a main shaft body (21) and a rotating part (22), the main shaft body (21) is rotatably disposed on the bracket (10), and the rotating part (22) is sleeved on the main shaft body (21) and rotatably disposed in the rotating hole (61); The rotating member (22) is provided with a rotating protrusion (221), which is located between the first actuating part (62) and the second actuating part (63). After the linkage member (60) completes its empty stroke, the first actuating part (62) or the second actuating part (63) abuts against the rotating protrusion (221).

3. The operating device according to claim 1, characterized in that, The movable component (50) includes a movable plate (51) and a connecting plate (52) connected to each other. The movable plate (51) is movably disposed on the bracket (10), and the first energy storage link structure (32), the movable plate (51) and the second energy storage link structure (42) are hinged in sequence. The connecting plate (52) is connected to the linkage component (60).

4. The operating device according to claim 3, characterized in that, The bracket (10) is provided with a first limiting member (15) and a second limiting member (16). The first energy storage link structure (32) is used to abut against the first limiting member (15) to form a locked state, and the first energy storage link structure (32) is provided with a first connecting shaft (325). The second energy storage link structure (42) is used to abut against the second limiting member (16) to form a locked state, and the second energy storage link structure (42) is provided with a second connecting shaft (425). The operating device (100) further includes an unlocking component (70), which is fixedly connected to the linkage component (60). The unlocking component (70) is used to move relative to the bracket (10) under the drive of the first electromagnet (31) or the second electromagnet (41) to move the movable component (50) relative to the bracket (10), thereby actuating the first connecting shaft (325) or the second connecting shaft (425) to release the locking state.

5. The operating device according to claim 4, characterized in that, The unlocking component (70) is disposed on the main shaft (20). Before the linkage component (60) completes the empty stroke, the unlocking component (70) abuts against the first connecting shaft (325) or the second connecting shaft (425) to release the locking state.

6. The operating device according to claim 3, characterized in that, The movable plate (51) is located at the top of the bracket (10), and the connecting plate (52) and the linkage (60) are both located on the same side of the bracket (10); and / or, The linkage (60) has a guide hole (64) at one end near the connecting plate (52), and the connecting plate (52) has a connecting shaft (521) at one end away from the movable plate (51), and the connecting shaft (521) passes through the guide hole (64).

7. The operating device according to claim 1, characterized in that, The first energy storage linkage structure (32) includes a first closing lever (321), a first upper linkage (322), a first lower linkage (323), and a first energy storage elastic element (324). The first closing lever (321), the first upper linkage (322), the first lower linkage (323), and the main shaft (20) are hinged in sequence. One end of the first energy storage elastic element (324) is connected to the first closing lever (321), and the other end is connected to the hinge of the first upper linkage (322) and the first lower linkage (323). The first closing lever (321) and the first upper linkage (322) are rotatably connected to the bracket (10). The first electromagnet (31) is movably connected to the first closing lever (321). The second energy storage linkage structure (42) includes a second closing lever (421), a second upper linkage (422), a second lower linkage (423), and a second energy storage elastic element (424). The second closing lever (421), the second upper linkage (422), the second lower linkage (423), and the main shaft (20) are hinged in sequence. One end of the second energy storage elastic element (424) is connected to the second closing lever (421), and the other end is connected to the hinge of the second upper linkage (422) and the second lower linkage (423). The second closing lever (421) and the second upper linkage (422) are rotatably connected to the bracket (10). The second electromagnet (41) is movably connected to the second closing lever (421). The first closing lever (321), the movable part (50), and the second closing lever (421) are hinged in sequence.

8. The operating device according to claim 7, characterized in that, The energy storage stroke of the first energy storage elastic element (324) and the second energy storage elastic element (424) is less than the stroke of the idle stroke, so that the linkage (60) drives the main shaft (20) to rotate when the first energy storage elastic element (324) or the second energy storage elastic element (424) releases energy.

9. The operating device according to claim 1, characterized in that, The bracket (10) includes a first bracket (11), a second bracket (12) and at least one fixed shaft (13). The first bracket (11) and the second bracket (12) are spaced apart. The two ends of the at least one fixed shaft (13) are respectively connected to the first bracket (11) and the second bracket (12). The main shaft (20) is rotatably connected to both the first support (11) and the second support (12). The first electromagnet (31), the first energy storage link structure (32), the second electromagnet (41), and the second energy storage link structure (42) are all located between the first support (11) and the second support (12). The first energy storage link structure (32) and the second energy storage link structure (42) are rotatably connected to both the first support (11) and the second support (12). The movable part (50) is rotatably connected to both the first support (11) and the second support (12).

10. A changeover switch, characterized in that, Includes the operating device (100) as described in any one of claims 1-9.

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