Operating mechanism and automatic transfer switch

Abstract

This application provides an operating mechanism and an automatic transfer switch, relating to the field of low-voltage electrical technology. The operating mechanism includes a mounting wall, a rotating assembly, a first limiting block, and a second limiting block. The rotating assembly has a pushing portion on its side wall, and a first engaging portion and a second engaging portion spaced apart on the side wall. The first limiting block has a third engaging portion, and the second limiting block has a fourth engaging portion. Both the first and second limiting blocks are rotatably mounted to the mounting wall. The mounting wall has a engaging protrusion located on the rotation path of the first engaging portion in a first direction. When the rotating assembly rotates in the first direction, the pushing portion pushes against the first limiting block, the third engaging portion separates from the first engaging portion, and the first engaging portion engages with the engaging protrusion, restricting the rotation of the rotating assembly in the first direction. The operating mechanism provided by this application simplifies the structure of the automatic transfer switch and facilitates its miniaturization.

Description

Technical Field

[0001] This application relates to the field of low-voltage electrical technology, and in particular to an operating mechanism and an automatic transfer switch. Background Technology

[0002] Automatic transfer switches, also known as "dual power automatic transfer switches" or "dual power switches," are electrical appliances used to monitor power circuits and automatically switch one or more load circuits from one power source to another.

[0003] Based on the existing structure of automatic transfer switches, the automatic transfer switch includes two sets of energy storage elastic components. Different energy storage elastic components are used to realize the electrical connection state between the power supply and the load corresponding to the energy storage elastic component. In order to ensure the reliability of the automatic transfer switch, an interlocking mechanism is usually set between the two sets of energy storage elastic components to avoid different power supplies being electrically connected inside the automatic transfer switch. This makes the structure of the automatic transfer switch more complex and is not conducive to the miniaturization of the automatic transfer switch. Summary of the Invention

[0004] This application provides an operating mechanism and an automatic transfer switch, which can simplify the structure of the automatic transfer switch, reduce the manufacturing cost of the automatic transfer switch, and facilitate the miniaturization of the automatic transfer switch.

[0005] In a first aspect, this application provides an operating mechanism for an automatic transfer switchgear. The operating mechanism is capable of switching the automatic transfer switchgear between an open state and a closed state. The operating mechanism includes a mounting wall, a rotating assembly, a first limit stop, and a second limit stop.

[0006] A rotating assembly is rotatably mounted to a mounting wall. The side wall of the rotating assembly has a pushing portion, and a first locking portion and a second locking portion are spaced apart on the side of the rotating assembly facing the mounting wall. A first limiting block is rotatably mounted to the mounting wall and has a third locking portion. A second limiting block is rotatably mounted to the mounting wall and has a fourth locking portion. The second limiting block is located on the side of the rotating assembly opposite to the first limiting block.

[0007] When the rotating component is engaged between the first and third engaging parts, and between the second and fourth engaging parts, the automatic transfer switch is in the open state. The mounting wall has engaging protrusions located on the rotation path of the first engaging part in the first direction. When the rotating component rotates in the first direction, the pushing part pushes against the first limit block, separating the third engaging part from the first engaging part. The rotating component continues to rotate in the first direction until the first engaging part engages with the engaging protrusions, restricting the rotation of the rotating component in the first direction, thereby switching the automatic transfer switch from the open state to the closed state. The load connection terminal of the automatic transfer switch is electrically connected to either the first power connection terminal or the second power connection terminal.

[0008] In this application example, the mounting wall can provide a mounting carrier for the rotating component, the first limit stop, and the second limit stop. The first and second locking parts are located at different positions on the rotating component facing the mounting wall. The first and second limit stops are located on both sides of the rotating component. A third locking part on the first limit stop can engage with the first locking part, and a fourth locking part on the second limit stop can engage with the second locking part. That is, the cooperation of the third and first locking parts, and the cooperation of the fourth and second locking parts, can simultaneously limit the rotating component from different positions, keeping it in a position that allows the automatic transfer switch to be in the open state. This avoids the possibility of the automatic transfer switch mistakenly entering the closed state due to malfunction of the rotating component, ensuring the reliability of the automatic transfer switch.

[0009] When the automatic transfer switch is in the open state, when the rotating component rotates in the first direction, the pushing part of the rotating component can push against the first limit block, causing the first limit block to rotate away from the rotating component. This causes the third locking part of the first limit block to separate from the first locking part, and the force exerted by the first limit block on the rotating component through the third locking part disappears. The rotating component can continue to rotate in the first direction until it reaches the position where the first locking part engages with the locking protrusion. Since the locking protrusion is located on the rotation path of the first locking part in the first direction, the engagement between the first locking part and the locking protrusion can restrict the rotation of the rotating component in the first direction, keeping the rotating component in a position that allows the automatic transfer switch to be in the closed state. This ensures that the load connection terminal of the automatic transfer switch is electrically connected to the first power connection terminal or the second power connection terminal, preventing the automatic transfer switch from being simultaneously electrically connected to both the first and second power connection terminals due to malfunction of the rotating component, thus ensuring the reliability of the automatic transfer switch.

[0010] Furthermore, compared to existing technologies that require a separate interlocking mechanism to prevent the load connection terminal of the automatic transfer switch from being simultaneously electrically connected to the first power connection terminal and the second power connection terminal, in this application example, by engaging the first latching part of the rotating component with the latching protrusion on the mounting wall, and by engaging the second latching part of the rotating component with the latching protrusion on the mounting wall, the load connection terminal of the automatic transfer switch can be prevented from being simultaneously electrically connected to the first power connection terminal and the second power connection terminal. That is, different power supplies can be prevented from being electrically connected inside the automatic transfer switch, reducing the need for interlocking mechanisms, lowering the manufacturing cost of the automatic transfer switch, and facilitating the miniaturization of the automatic transfer switch.

[0011] In some possible implementations, the rotating component is also provided with a snap-fit ​​groove, which is located between the first snap-fit ​​portion and the second snap-fit ​​portion. When the first snap-fit ​​portion snaps with the snap-fit ​​protrusion, the fourth snap-fit ​​portion snaps with the groove wall of the snap-fit ​​groove away from the first snap-fit ​​portion.

[0012] In this application example, during the use of the automatic transfer switch, since the locking protrusion is located on the rotation path of the first locking part along the first direction, the locking of the first locking part with the locking protrusion can restrict the rotation of the rotating component along the first direction. Furthermore, the fourth locking part locks with the groove wall of the locking slot away from the first locking part, which can restrict the rotation of the rotating component along the second direction. This further improves the reliability of maintaining the rotating component in a position that allows the automatic transfer switch to be in the closed state, preventing the load connection terminal of the automatic transfer switch from being simultaneously electrically connected to both the first power connection terminal and the second power connection terminal due to malfunction of the rotating component, thus ensuring the reliability of the automatic transfer switch.

[0013] In some possible implementations, the pushing part includes a first pushing part, a second pushing part, and a third pushing part arranged at intervals, with the second pushing part located between the first pushing part and the third pushing part, and the first pushing part and the third pushing part being located further away from the mounting wall than the second pushing part.

[0014] The first limiting block also includes a first block body and a first rib. The first rib is located in the middle of the first block body on the side away from the mounting wall. The third snap-fit ​​part is located on the side of the first block body facing the rotating component. The first pushing part can push against the first rib, and one side of the second pushing part can push against the first block body.

[0015] The second limiting block also includes a second block body and a second rib. The second rib is located in the middle of the side of the second block body away from the mounting wall. The fourth locking part is located on the side of the second block body facing the rotating component. The third pushing part can push against the second rib, and the other side of the second pushing part can push against the second block body.

[0016] In this example, since the first and third pushing portions are both located further away from the mounting wall than the second pushing portion, and the first rib is located in the middle of the side of the first stop block body away from the mounting wall, and the second rib is located in the middle of the side of the second stop block body away from the mounting wall, the second pushing portion can contact the first stop block body and apply force to it during the rotation of the rotating assembly. Alternatively, the second pushing portion can contact the second stop block body and apply force to it during the rotation of the rotating assembly, thereby enabling the rotating assembly to switch between different positions and thus achieving the switching of the automatic transfer switch between different working states.

[0017] The first pushing section can apply force to the first rib, so that the first pushing section cooperates with the second pushing section to realize the switching of the rotating component to different positions, thereby realizing the switching of the automatic switching electrical appliance between different working states.

[0018] The third pushing section can apply force to the second rib, so that the third pushing section cooperates with the second pushing section to realize the switching of the rotating component to different positions, thereby realizing the switching of the automatic transfer switch electrical appliance between different working states.

[0019] In some possible implementations, the first rib includes an abutting rib and a relief rib, which are angled together and the relief rib extends in a direction away from the rotating component. The first pushing portion is able to push against the abutting rib, and the relief rib provides clearance space for the rotation of the rotating component.

[0020] In this example, the abutting rib and the clearance rib are set at an angle, and the first pushing portion can abut against the abutting rib, so that the rotating component can switch between the open and closed positions, thereby realizing the switching of the automatic transfer switchgear between the open and closed states. The clearance rib extends in a direction away from the rotating component, so that the clearance rib can provide clearance space for the rotation of the rotating component, avoiding the situation where the rotation of the rotating component is jammed due to contact between the clearance rib and the rotating component, ensuring the reliability of the operating mechanism and improving the user experience.

[0021] In some possible implementations, the rotating assembly includes a cam and a turntable. The cam is rotatably mounted to a mounting wall and has a first engaging portion and a second engaging portion. A turntable is located on the side of the cam facing away from the mounting wall, and the turntable can directly or indirectly drive the cam to rotate. The side wall of the turntable has a pushing portion.

[0022] In this application example, by setting a first latching part and a second latching part on the cam, setting a pushing part on the turntable, and covering the turntable on the side of the cam away from the mounting wall, compared with the turntable and cam being an integral structure, the material used for the rotating component can be reduced, the manufacturing cost of the rotating component can be reduced, and it is conducive to the miniaturization of automatic transfer switch electrical appliances.

[0023] In some possible implementations, the side of the cam facing away from the mounting wall is provided with a mounting shaft and an abutment protrusion spaced apart. A toggle arm is provided on the side of the turntable facing the cam. The rotating assembly also includes a first elastic element, which comprises an elastic body, a first torsion arm, and a second torsion arm. The elastic body is mounted on the mounting shaft, the first torsion arm abuts against one side of the abutment protrusion, the second torsion arm abuts against the other side of the abutment protrusion, and the toggle arm is located between the first and second torsion arms.

[0024] In this application example, the cam can provide a mounting carrier for the first elastic element. Specifically, the cam is provided with a mounting shaft and an abutment protrusion. The elastic body of the first elastic element is mounted to the mounting shaft. The first torsion arm of the first elastic element abuts against one side of the abutment protrusion, and the second torsion arm abuts against the other side of the abutment protrusion. The actuating arm of the turntable is located between the first and second torsion arms. Therefore, during the rotation of the actuating arm, the actuating arm can apply a force to the first or second torsion arm, causing the first elastic element to be in an energy storage state. During the further rotation of the rotating assembly, the first elastic element releases energy, enabling the rotating assembly to rotate rapidly. This, in turn, allows the automatic transfer switch to quickly switch from the open state to the closed state, improving the operating efficiency of the automatic transfer switch.

[0025] Furthermore, compared to existing technologies that use two independent energy storage elastic elements to achieve electrical connection between the automatic transfer switch and different power sources, and employ interlocking mechanisms to prevent different power sources from being electrically connected within the automatic transfer switch due to the combined action of the two energy storage elastic elements, the example in this application uses only the first elastic element to store energy for the electrical connection between the first power source and the automatic transfer switch, or for the electrical connection between the second power source and the automatic transfer switch. This avoids different power sources being electrically connected within the automatic transfer switch, reducing the number of energy storage elastic elements and eliminating the need for interlocking mechanisms. This reduces the number of components in the automatic transfer switch, lowers its manufacturing cost, and facilitates its miniaturization.

[0026] In some possible implementations, the turntable includes a turntable body and a toggle member. The turntable body has a connected fixed groove and a through hole. One end of the toggle member is installed in the fixed groove, and the other end of the toggle member passes through the through hole and extends in the direction toward the cam to form a toggle arm.

[0027] In this example, the turntable body provides a mounting carrier for the actuating component. Since one end of the actuating component is installed in the fixed groove, the groove wall can limit the actuating component during turntable rotation, reducing the amplitude of the actuating component's wobbling relative to the turntable body and ensuring the assembly reliability of the actuating component and the turntable body. The other end of the actuating component passes through the through hole and extends towards the cam to form an actuating arm. That is, the fixed groove and through hole in the turntable body can limit the actuating component from different positions, reducing the amplitude of the actuating component's wobbling relative to the turntable body and ensuring the connection reliability between the turntable body and the actuating component.

[0028] In some possible implementations, the mounting wall is further provided with a first limiting structure and a second limiting structure, with the first limiting structure located on the side of the first limiting block away from the rotating component, and the second limiting structure located on the side of the second limiting block away from the rotating component.

[0029] The operating mechanism also includes a second elastic member and a third elastic member. One end of the second elastic member abuts against the first limiting structure, and the other end of the second elastic member is movably connected to the first limiting block. One end of the third elastic member abuts against the second limiting structure, and the other end of the third elastic member is movably connected to the second limiting block.

[0030] When the automatic transfer switch is in the open state, the first engaging part and the third engaging part engage. At this time, the rotating component applies a force away from the rotating component to the first limit block, causing the first limit block to move in a direction away from the rotating component, thereby putting the second elastic element into an energy storage state. During the rotation of the rotating component in the first direction, the first engaging part and the third engaging part separate, and the force applied to the first limit block by the rotating component is removed, allowing the first limit block to rotate in a direction toward the rotating component. At the same time, since one end of the second elastic element abuts against the first limiting structure, and the first limiting structure is located on the side of the first limit block away from the rotating component, the energy released by the second elastic element can apply a force toward the rotating component to the first limit block, accelerating the speed at which the first limit block rotates toward the rotating component. This improves the engagement efficiency of the third engaging part on the first limit block with the engaging slot, enabling the automatic transfer switch to quickly switch from the open state to the closed state, further improving the operating efficiency of the automatic transfer switch.

[0031] The third elastic element and the second limiting structure have similar functions to the second elastic element and the first limiting structure, and will not be described in detail here.

[0032] In some possible implementations, the operating mechanism further includes a mounting housing and a rail-locking component. The mounting housing includes a mounting wall, and its bottom has a locating boss and a mounting groove with opposing positions. The rail-locking component is slidably mounted into the mounting groove, and engages with the rail by cooperating with the locating boss.

[0033] In this application example, the rail limiting component and the limiting boss can engage the rail. Since the rail limiting component is installed on the mounting housing and the limiting boss is located in the housing, and the mounting housing is part of the operating mechanism, the engagement of the rail limiting component and the limiting boss with the rail can realize the connection between the rail and the operating mechanism.

[0034] Secondly, this application provides an automatic transfer switchgear, which includes a switch body and an operating mechanism provided by the first aspect and various possible implementations of the first aspect. The operating mechanism can drive the switch body to rotate so that the automatic transfer switchgear switches between an open state and a closed state.

[0035] The beneficial effects of the operating mechanisms provided in the second aspect and the various possible designs of the second aspect can be seen in the beneficial effects of the first aspect and the various possible implementations of the first aspect, and will not be repeated here. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of an automatic transfer switch provided as an example of this application.

[0037] Figure 2 This is a partial exploded structural diagram of an automatic transfer switch provided as an example of this application.

[0038] Figure 3 This is a schematic diagram of a rotating component provided as an example in this application.

[0039] Figure 4 This is an exploded structural diagram of a rotating component provided as an example of this application.

[0040] Figure 5 This is a first-view structural schematic diagram of a cam provided as an example in this application.

[0041] Figure 6 This is a schematic diagram of a mounting housing provided as an example of this application.

[0042] Figure 7 This is a schematic diagram of the internal structure of an operating mechanism in the open state, provided as an example of this application.

[0043] Figure 8 This is a schematic diagram of the operating mechanism in the open state, which is provided as an example of this application.

[0044] Figure 9 for Figure 8 Sectional view at point AA.

[0045] Figure 10 This is a schematic diagram of the internal structure of an operating mechanism in the closed state, provided as an example of this application.

[0046] Figure 11 This is a schematic diagram of the operating mechanism in the closed state, provided as an example of this application.

[0047] Figure 12 for Figure 11 Sectional view at point BB.

[0048] Figure 13 A schematic diagram of the structure of a first limiting block provided as an example of this application.

[0049] Figure 14 This is a structural schematic diagram of a cam from a second perspective, provided as an example of this application.

[0050] Explanation of reference numerals in the attached figures:

[0051] 100. Automatic transfer switch; 200. Operating mechanism; 210. Rotating assembly; 211. Pushing part; 2111. First pushing section; 2112. Second pushing section; 2113. Third pushing section; 212. First engaging part; 213. Second engaging part; 214. Engaging groove; 215. Cam; 2151. Mounting shaft; 2152. Abutting protrusion; 216. Turntable; 2161. Turntable body; 2162. Actuating element; 217. First elastic element; 220. Operating assembly; 230. First limit stop; 231. 232. First stop block body; 233. First rib; 2331. Abutting rib; 2332. Clearance rib; 240. Second limit stop block; 241. Fourth stop; 250. Mounting housing; 251. Mounting wall; 2511. Snap-fit ​​protrusion; 2512. First limit structure; 2513. Second limit structure; 260. Second elastic element; 270. Third elastic element; 300. Switch body; 310. Load connection end; 320. First power connection end; 330. Second power connection end; 400. Rail limit element. Detailed Implementation

[0052] To make the purpose, technical solutions, and advantages of the examples in this application clearer, the technical solutions in the examples of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described examples are only a part of the examples in this application, not all of them. Based on the examples in this application, all other examples obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terms used herein in the description of the application are for the purpose of describing particular examples only and are not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the description, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0054] In this document, the term "example" means that a particular feature, structure, or characteristic described in connection with the example can be included in at least one example of this application. The appearance of the phrase "example" in various places in the specification does not necessarily refer to the same example, nor is it a separate or alternative example mutually exclusive with other examples. It will be explicitly and implicitly understood by those skilled in the art that the examples described herein can be combined with other examples.

[0055] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists, A and B exist simultaneously, or B exists. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0056] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the operating mechanism and automatic transfer switch of this application.

[0057] Furthermore, the terms "first," "second," etc., in the specification and claims of this application or in the aforementioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0058] In the description of this application, unless otherwise stated, "multiple" means two or more (including two), and similarly, "multiple groups" means two or more (including two groups).

[0059] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by a partition, such as a connection fixed by screws, bolts, or other partitions; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0060] Based on the above, this application provides an operating mechanism and an automatic transfer switch.

[0061] To enable those skilled in the art to better understand the present application, the operating mechanism and automatic transfer switch provided in the example of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0062] For example, this application provides an automatic transfer switch.

[0063] Figure 1 Please refer to the structural schematic diagram of an automatic transfer switch provided as an example in this application. Figure 1 The automatic transfer switch 100 includes a switch body 300 and an operating mechanism 200. The operating mechanism 200 can drive the switch body 300 to rotate, so that the automatic transfer switch 100 switches between the open state and the closed state.

[0064] The switch body 300 can be single-phase or multi-phase, and this application example does not impose specific limitations on this.

[0065] The switch bodies 300 of different phases have similar structures. This application example only uses a single-phase switch body 300 as an example to describe the structure of the switch body 300.

[0066] The switch body 300 includes a switch housing, and the switch body 300 includes a cooperating moving contact assembly and a stationary contact assembly. The stationary contact assembly is fixedly installed inside the switch housing, and the moving contact assembly is rotatably installed inside the switch housing.

[0067] The stationary contact assembly includes a load stationary contact, a first power supply stationary contact, and a second power supply stationary contact. The load stationary contact is fixedly installed on one side of the switch housing, enabling electrical connection between the switch body 300 and the load. The first power supply stationary contact is fixedly installed on the other side of the switch housing, enabling electrical connection between the switch body 300 and a first power source. The second power supply stationary contact is installed on the same side of the switch housing as the first power supply stationary contact, and the second power supply stationary contact is insulated from the first power supply stationary contact, enabling electrical connection between the switch body 300 and a second power source.

[0068] The moving contact assembly includes a rotating structure and a moving contact body. Both ends of the moving contact body extend out of the rotating structure for electrical connection with the stationary contact assembly. The moving contact assembly can rotate under the drive of the operating mechanism 200, allowing the switch body 300 to switch between an open and closed state. When the switch body 300 is in the open state, the automatic transfer switch 100 is correspondingly in the open state; when the switch body 300 is in the closed state, the automatic transfer switch 100 is correspondingly in the closed state.

[0069] The open state refers to the state where the end of the moving contact body is neither electrically connected to the load stationary contact nor to either the first power supply stationary contact or the second power supply stationary contact.

[0070] The closed state means that one end of the moving contact body is electrically connected to the load stationary contact, and the other end of the moving contact body is electrically connected to either the first power supply stationary contact or the second power supply stationary contact.

[0071] The automatic transfer switch 100 can be electrically connected to different power sources. Therefore, in the event of a power source failure, by adjusting the operating state of the automatic transfer switch 100, the load can be electrically connected to another power source, ensuring the reliable operation of the load.

[0072] The automatic transfer switch 100 may also include an indicating structure, which is directly or indirectly connected to the operating mechanism 200 so that the operator can understand the working status of the automatic transfer switch 100 through the indicating structure. In this application example, the indicating structure is similar to the indicating structure of the automatic transfer switch in the prior art, and will not be described in detail here.

[0073] For a detailed description of the operating mechanism 200, please refer to the relevant description below. This application example will not be elaborated upon here.

[0074] Since the automatic transfer switch 100 provided in this application example includes the operating mechanism 200 mentioned below, the automatic transfer switch 100 provided in this application example has the beneficial effects of the operating mechanism 200 mentioned below.

[0075] Next, the operating mechanism 200 mentioned above will be described in detail.

[0076] Figure 2 This application provides a partial exploded view of an automatic transfer switch as an example. Figure 3 This application provides a schematic diagram of the structure of a rotating assembly as an example. Figure 4 This application provides an example of an exploded structural diagram of a rotating component. Figure 5 This application provides a first-view structural schematic diagram of a cam as an example. Figure 6This is a schematic diagram of a mounting housing provided as an example of this application.

[0077] Please refer to Figures 1-6 For example, this application provides an operating mechanism 200 for an automatic transfer switch 100. The operating mechanism 200 can drive the automatic transfer switch 100 to switch between an open state and a closed state. The operating mechanism 200 includes a mounting wall 251, a rotating assembly 210, a first limit block 230, and a second limit block 240.

[0078] The rotating assembly 210 is rotatably mounted to the mounting wall 251. The side wall of the rotating assembly 210 is provided with a pushing portion 211. A first engaging portion 212 and a second engaging portion 213 are spaced apart on the side of the rotating assembly 210 facing the mounting wall 251. A first limiting block 230 is rotatably mounted to the mounting wall 251 and is provided with a third engaging portion 231. A second limiting block 240 is rotatably mounted to the mounting wall 251 and is provided with a fourth engaging portion 241. The second limiting block 240 is located on the side of the rotating assembly 210 opposite to the first limiting block 230.

[0079] When the rotating component 210 is engaged with the first engaging part 212 and the third engaging part 231, and engaged with the second engaging part 213 and the fourth engaging part 241, the automatic transfer switch 100 is in the open state. The mounting wall 251 is provided with a engaging protrusion 2511, which is located on the rotation path of the first engaging part 212 in the first direction. When the rotating component 210 rotates in the first direction, the pushing part 211 pushes against the first limiting block 230, and the third engaging part 231 separates from the first engaging part 212. The rotating component 210 continues to rotate in the first direction until the first engaging part 212 engages with the engaging protrusion 2511, restricting the rotation of the rotating component 210 in the first direction, so that the automatic transfer switch 100 switches from the open state to the closed state. The load connection terminal 310 of the automatic transfer switch 100 is electrically connected to the first power connection terminal 320 or the second power connection terminal 330.

[0080] The operating mechanism 200 may also include an operating component 220, which is connected to the rotating component 210. The operating component 220 can drive the rotating component 210 to rotate, thereby enabling the automatic transfer switch 100 to switch between the open state and the closed state.

[0081] The operating component 220 can be a motor, an operating handle, or other structures. The operating component 220 may also include both a motor and an operating handle. The motor is connected to the rotating component 210 via a hole-shaft engagement, and the operating handle is connected to the rotating component 210 via gear engagement.

[0082] The pushing part 211 is a protruding structure provided on the side wall of the rotating assembly 210. There may be one pushing part 211 or multiple pushing parts 211 provided at intervals.

[0083] The first latching portion 212 and the second latching portion 213 can be protruding structures provided on the rotating component 210, or they can be groove structures, hook structures, etc. provided on the rotating component 210. This application example does not impose specific limitations on this.

[0084] The first limiting block 230 and the second limiting block 240 are disposed on opposite sides of the rotating assembly 210. The first limiting block 230 and the second limiting block 240 may be symmetrically or asymmetrically disposed on both sides of the rotating assembly 210. This application example only describes the first limiting block 230 and the second limiting block 240 symmetrically disposed on both sides of the rotating assembly 210.

[0085] The third latching part 231 is provided on the first limiting block 230, and the fourth latching part 241 is provided on the second limiting block 240. The structure of the third latching part 231 is similar to that of the fourth latching part 241. The following description will only use the third latching part 231 as an example to illustrate the structure of the third latching part 231 and the fourth latching part 241.

[0086] The third engaging portion 231 engages with the first engaging portion 212. When the first engaging portion 212 is a protruding structure, the third engaging portion 231 is a recessed structure, which can cooperate with the protruding structure to define the relative position of the first engaging portion 212 and the rotating component 210. Alternatively, when the first engaging portion 212 is a recessed structure, the third engaging portion 231 is a protruding structure, which can cooperate with the protruding structure to define the relative position of the first engaging portion 212 and the rotating component 210. Both the third engaging portion 231 and the first engaging portion 212 can be configured as hook structures, with the hooks of the two hook structures facing opposite directions, so that the third engaging portion 231 can engage with the first engaging portion 212.

[0087] Figure 7 This application provides a schematic diagram of the internal structure of the operating mechanism in the open state. Figure 8 This application provides a schematic diagram of the operating mechanism in the open state as an example. Figure 9 for Figure 8 Please refer to the sectional view at point AA. Figures 7-9When the third latching part 231 is latched with the first latching part 212 and the second latching part 213 is latched with the fourth latching part 241, that is, when the third latching part 231 and the fourth latching part 241 limit the rotation component 210 from different sides, the rotation component 210 is in the open position, the moving contact component and the stationary contact component are in a separated state, and the automatic transfer switch 100 is in the open state.

[0088] When the automatic transfer switch 100 is in the open state, the rotation component 210 can achieve electrical connection between the load and the first power source by rotating in the first direction, and can achieve electrical connection between the load and the second power source by rotating in the second direction.

[0089] When the automatic transfer switch 100 is in the open state, the rotation component 210 can achieve electrical connection between the load and the second power source when it rotates in the first direction, and can achieve electrical connection between the load and the first power source when it rotates in the second direction.

[0090] The first direction can be either clockwise or counterclockwise, and the second direction can be either clockwise or counterclockwise. This application example only describes an instance where the first direction is clockwise, the second direction is counterclockwise, and the rotating component 210 rotates along the first direction, thus achieving electrical connection between the load connection terminal 310 and the first power connection terminal 320.

[0091] Figure 10 This application provides a schematic diagram of the internal structure of an operating mechanism in the closed state. Figure 11 This application provides a schematic diagram of the operating mechanism in the closed state as an example. Figure 12 for Figure 11 Sectional view at point BB.

[0092] like Figures 7-12As shown, when the rotating assembly 210 is in the open position, the pushing part 211 is located between the first limiting block 230 and the second limiting block 240. When the rotating assembly 210 rotates clockwise, the pushing part 211 provided on the rotating assembly 210 can push against the first limiting block 230, applying a force away from the rotating assembly 210 to the first limiting block 230, thereby allowing the third engaging part 231 provided on the first limiting block 230 to move in a direction away from the rotating assembly 210, so that the third engaging part 231 separates from the first engaging part 212 provided on the rotating assembly 210. The rotating assembly 210 can continue to rotate clockwise until the first snap-fit ​​part 212 snaps into the snap-fit ​​protrusion 2511. At this time, the rotating assembly 210 is in the first power supply closed position. The rotating assembly 210 drives the moving contact assembly to rotate to the position where it is electrically connected to the load stationary contact and the first power supply stationary contact. The automatic transfer switch 100 is in the closed state.

[0093] The load stationary contact and the terminal block cooperate to form a load connection terminal 310, and the first power supply stationary contact and the terminal block cooperate to form a first power supply connection terminal 320.

[0094] With the rotating assembly 210 in the first power-on position, rotating the rotating assembly 210 counterclockwise allows the first engaging portion 212 to separate from the engaging protrusion 2511. The rotating assembly 210 continues to rotate counterclockwise until the first engaging portion 212 engages with the third engaging portion 231, and the second engaging portion 213 engages with the fourth engaging portion 241. At this point, the rotating assembly 210 reaches the power-off position.

[0095] When the rotating assembly 210 is in the open position, it rotates counterclockwise. The pushing part 211 pushes against the second limit block 240, applying a force away from the rotating assembly 210 to the second limit block 240. This causes the fourth engaging part 241 on the second limit block 240 to move away from the rotating assembly 210, separating it from the second engaging part 213. The rotating assembly 210 continues to rotate counterclockwise until it reaches the position where the second engaging part 213 engages with the engaging protrusion 2511. At this time, the rotating assembly 210 is in the second power supply closed position. The rotating assembly 210 drives the moving contact assembly to rotate to a position where it is electrically connected to the load stationary contact and the second power supply connection terminal 330, and the automatic transfer switch 100 is in the closed state.

[0096] The second power stationary contact and the wiring terminal cooperate to form the second power connection terminal 330.

[0097] The process of rotating component 210 from the second power-on position to the open position is similar to the process of rotating component 210 from the first power-on position to the open position, and will not be described in detail here.

[0098] In this application example, the mounting wall 251 can provide a mounting carrier for the rotating assembly 210, the first limiting block 230 and the second limiting block 240. The first latching part 212 and the second latching part 213 are located at different positions on the rotating assembly 210 facing the mounting wall 251. The first limiting block 230 and the second limiting block 240 are located on both sides of the rotating assembly 210. The third latching part 231 of the first limiting block 230 can latch with the first latching part 212, and the fourth latching part 241 of the second limiting block 240 can latch with the second latching part 213. That is, the third latching part 231 cooperates with the first latching part 212, and the fourth latching part 241 cooperates with the second latching part 213, which can simultaneously limit the rotating assembly 210 from different positions, so that the rotating assembly 210 is maintained in a position that allows the automatic transfer switch 100 to be in the open state. This avoids the possibility that the automatic transfer switch 100 may mistakenly enter the closed state due to the malfunction of the rotating assembly 210, and ensures the reliability of the automatic transfer switch 100.

[0099] When the automatic transfer switch 100 is in the open state, when the rotating assembly 210 rotates in the first direction, the pushing part 211 provided on the rotating assembly 210 can push against the first limit block 230, causing the first limit block 230 to rotate in a direction away from the rotating assembly 210. This causes the third engaging part 231 provided on the first limit block 230 to separate from the first engaging part 212, and the force exerted on the rotating assembly 210 by the first limit block 230 through the third engaging part 231 disappears. The rotating assembly 210 can then continue to rotate in the first direction until it reaches the position where the first engaging part 212 engages with the engaging protrusion 2511. Since the engaging protrusion 2511 is provided on the first... The first engaging part 212 is on the rotation path of the first direction. Therefore, the engagement between the first engaging part 212 and the engaging protrusion 2511 can restrict the rotation of the rotating component 210 in the first direction, so that the rotating component 210 is maintained in a position that allows the automatic transfer switch 100 to be in the closed state. This allows the load connection terminal 310 of the automatic transfer switch 100 to be electrically connected to the first power connection terminal 320 or the second power connection terminal 330. This prevents the automatic transfer switch 100 from being simultaneously electrically connected to the first power connection terminal 320 and the second power connection terminal 330 due to malfunction of the rotating component 210, thus ensuring the reliability of the automatic transfer switch 100.

[0100] Furthermore, compared to the prior art, which requires a separate interlocking mechanism to prevent the load connection terminal of the automatic transfer switch from being electrically connected to both the first power connection terminal and the second power connection terminal simultaneously, in this application example, by engaging the first latching part 212 on the rotating assembly 210 with the latching protrusion 2511 on the mounting wall 251, and by engaging the second latching part 213 on the rotating assembly 210 with the latching protrusion 2511 on the mounting wall 251, the load connection terminal 310 of the automatic transfer switch 100 can be prevented from being electrically connected to both the first power connection terminal 320 and the second power connection terminal 330 simultaneously. That is, different power supplies can be prevented from being electrically connected inside the automatic transfer switch 100, reducing the need for interlocking mechanisms, lowering the manufacturing cost of the automatic transfer switch 100, and facilitating the miniaturization of the automatic transfer switch 100.

[0101] Based on the operating mechanism 200 provided in the above example, such as Figure 5 and Figures 10-12 As shown, the rotating assembly 210 is also provided with a snap-fit ​​groove 214, which is located between the first snap-fit ​​part 212 and the second snap-fit ​​part 213. When the first snap-fit ​​part 212 snaps with the snap-fit ​​protrusion 2511, the fourth snap-fit ​​part 241 snaps with the snap-fit ​​groove 214 away from the groove wall of the first snap-fit ​​part 212.

[0102] When the second snap-fit ​​portion 213 snaps into the snap-fit ​​protrusion 2511, the third snap-fit ​​portion 231 snaps into the snap-fit ​​groove 214 away from the groove wall of the second snap-fit ​​portion 213.

[0103] The snap-fit ​​groove 214 can be positioned closer to the rotation center of the rotating assembly 210 than the first snap-fit ​​part 212 and the second snap-fit ​​part 213. The distance between the snap-fit ​​groove 214 and the rotation center of the rotating assembly 210 can also be equal to the distance between the first snap-fit ​​part 212 and the rotation center of the rotating assembly 210, and the distance between the second snap-fit ​​part 213 and the rotation center of the rotating assembly 210. This application example does not impose specific limitations on this.

[0104] When the rotating assembly 210 is in the open position, it rotates in the first direction, and the pushing part 211 pushes against the first limiting block 230, causing the first limiting block 230 to rotate away from the rotating assembly 210. The third engaging part 231 of the first limiting block 230 separates from the first engaging part 212 of the rotating assembly 210. The rotating assembly 210 continues to rotate in the first direction until it reaches the position where the first engaging part 212 engages with the engaging protrusion 2511. Furthermore, since the second engaging portion 213 provided on the rotating assembly 210 separates from the fourth engaging portion 241 provided on the second limiting block 240, the force exerted by the rotating assembly 210 on the second limiting block 240 away from the first limiting block 230 is removed. The second limiting block 240 can then rotate in the direction toward the first limiting block 230, thereby allowing the groove wall of the engaging groove 214 to engage with the fourth engaging portion 241 provided on the second limiting block 240. Based on this, when the rotating assembly 210 has a tendency to rotate in the second direction, the groove wall of the engaging groove 214 can engage with the fourth engaging portion 241. Therefore, the engagement of the fourth engaging portion 241 with the groove wall of the engaging groove 214 can restrict the rotation of the rotating assembly 210 in the second direction.

[0105] In this application example, during the use of the automatic transfer switch 100, since the locking protrusion 2511 is located on the rotation path of the first locking part 212 rotating in the first direction, the locking of the first locking part 212 with the locking protrusion 2511 can restrict the rotation of the rotating component 210 in the first direction. Furthermore, the fourth locking part 241 locks with the locking groove 214 away from the groove wall of the first locking part 212, which can restrict the rotation of the rotating component 210 in the second direction. This further improves the reliability of the rotating component 210 maintaining a position that allows the automatic transfer switch 100 to be in the closed state, preventing the automatic transfer switch 100 from malfunctioning due to the rotating component 210, which could cause the load connection terminal 310 of the automatic transfer switch 100 to be simultaneously electrically connected to the first power connection terminal 320 and the second power connection terminal 330, thus ensuring the reliability of the automatic transfer switch 100.

[0106] When the second latching portion 213 latches with the latching protrusion 2511, the third latching portion 231 latches with the latching groove 214 away from the groove wall of the second latching portion 213. This function is similar to the function of the fourth latching portion 241 latching with the latching groove 214 away from the groove wall of the first latching portion 212 when the first latching portion 212 latches with the latching protrusion 2511. This example will not be described in detail here.

[0107] Based on the operating mechanism 200 provided in the above example, such as Figure 3As shown, the pushing part 211 includes a first pushing part 2111, a second pushing part 2112 and a third pushing part 2113 arranged at intervals. The second pushing part 2112 is disposed between the first pushing part 2111 and the third pushing part 2113. The first pushing part 2111 and the third pushing part 2113 are both disposed further away from the mounting wall 251 than the second pushing part 2112.

[0108] Figure 13 For a structural schematic diagram of a first limiting block provided as an example of this application, please refer to... Figure 13 The first limiting block 230 also includes a first block body 232 and a first rib 233. The first rib 233 is located in the middle of the side of the first block body 232 away from the mounting wall 251. The third locking part 231 is located on the side of the first block body 232 facing the rotating assembly 210. The first pushing part 2111 can push the first rib 233, and one side of the second pushing part 2112 can push the first block body 232.

[0109] The second limiting block 240 also includes a second block body and a second rib. The second rib is located in the middle of the side of the second block body away from the mounting wall 251. The fourth locking part 241 is located on the side of the second block body facing the rotating assembly 210. The third pushing part 2113 can push against the second rib, and the other side of the second pushing part 2112 can push against the second block body.

[0110] The third locking part 231 is provided on the first stop block body 232, and the fourth locking part 241 is provided on the second stop block body.

[0111] Depending on the different operating components 220, the positional relationship between the first pushing portion 2111, the second pushing portion 2112, and the third pushing portion 2113 may be different.

[0112] For example, when the operating component 220 includes an operating handle, the operating handle is connected to the rotating component 210 via gear engagement. In this case, the first pushing portion 2111 and the second pushing portion 2112 are spaced apart, and there are meshing teeth between the first pushing portion 2111 and the second pushing portion 2112 that cooperate with the operating handle. The second pushing portion 2112 is located on the side of the meshing teeth near the mounting wall 251.

[0113] When the operating component 220 includes only a motor, the pushing part is an integral structure. The cross-section of the pushing part 211 is convex. The smaller end of the convex pushing part corresponds to the second pushing part and is positioned towards the mounting wall 251. One side of the larger end of the convex pushing part is the first pushing part, and the other side is the third pushing part. This application example does not limit the specific structure of the pushing part 211. The following description only uses the first pushing part 2111, the second pushing part 2112, and the third pushing part 2113 spaced apart as an example.

[0114] like Figure 7 As shown, when the rotating assembly 210 is in the open position, the pushing part 211 is located between the first limit block 230 and the second limit block 240. Specifically, the second pushing part 2112 is located between the first block body 232 and the second block body, the first pushing part 2111 is located on the side of the first rib 233 facing the second limit block 240, and the third pushing part 2113 is located on the side of the second rib facing the first limit block 230.

[0115] During the rotation of the rotating assembly 210 in the first direction, the second pushing portion 2112 can push the first stop block body 232 first, causing the first limit stop block 230 to rotate in a direction away from the rotating assembly 210, causing the third locking portion 231 to separate from the first locking portion 212, thereby allowing the rotating assembly 210 to continue rotating, and causing the automatic transfer switch 100 to switch from the open state to the closed state. At this time, the load connection terminal 310 of the automatic transfer switch 100 is electrically connected to the first power connection terminal 320.

[0116] Please refer to Figure 10 and Figure 12When the load connection terminal 310 of the automatic transfer switch 100 is electrically connected to the first power connection terminal 320, during the rotation of the rotating assembly 210 in the second direction, the third pushing portion 2113 can push against the second rib. Since the second rib is located on the second limit block 240, under the action of the third pushing portion 2113, the second limit block 240 can move in the direction away from the rotating assembly 210, thereby causing the fourth locking portion 241 to separate from the groove wall of the locking groove 214. The force that restricts the rotation of the rotating assembly 210 in the second direction by the fourth locking portion 241 through the groove wall of the locking groove 214 is removed, so that the rotating assembly 210 can continue to rotate in the second direction. During the rotation of the rotating component 210 in the second direction, the rotating component 210 pushes against the first limit block 230, causing the first limit block 230 to rotate in a direction away from the rotating component 210, reducing the possibility that the first limit block 230 restricts the rotation of the rotating component 210 in the second direction, so that the rotating component 210 can rotate to the position where the first locking part 212 and the third locking part 231 are engaged, and the second locking part 213 and the fourth locking part 241 are engaged, so that the automatic transfer switch 100 switches from the closed state to the open state.

[0117] When the rotating assembly 210 is in the open position, during the rotation of the rotating assembly 210 in the second direction, the second pushing part 2112 can push the second stop block body first, so that the second limit stop block 240 rotates in the direction away from the rotating assembly 210, so that the fourth locking part 241 separates from the second locking part 213, thereby allowing the rotating assembly 210 to continue rotating, so that the automatic transfer switch 100 switches from the open state to the closed state. At this time, the load connection terminal 310 of the automatic transfer switch 100 is electrically connected to the second power connection terminal 330.

[0118] When the load connection terminal 310 of the automatic transfer switch 100 is electrically connected to the second power connection terminal 330, during the rotation of the rotating assembly 210 in the first direction, the first pushing portion 2111 can push against the first rib 233. Since the first rib 233 is located on the first limiting block 230, the first limiting block 230 can move in the direction away from the rotating assembly 210 under the action of the first pushing portion 2111, thereby causing the third locking portion 231 to separate from the locking groove 214. The force that restricts the rotation of the rotating assembly 210 in the first direction by the groove wall of the locking groove 214 is removed, so that the rotating assembly 210 can continue to rotate in the first direction. During the rotation of the rotating component 210 in the first direction, the rotating component 210 pushes against the second limit block 240, causing the second limit block 240 to rotate in a direction away from the rotating component 210, reducing the possibility that the second limit block 240 restricts the rotation of the rotating component 210 in the first direction, so that the rotating component 210 can rotate to the position where the second locking part 213 and the fourth locking part 241 are engaged, and the first locking part 212 and the third locking part 231 are engaged, so that the automatic transfer switch 100 switches from the closed state to the open state.

[0119] In this example, since the first pushing portion 2111 and the third pushing portion 2113 are both located further away from the mounting wall 251 than the second pushing portion 2112, and the first rib 233 is located in the middle of the side of the first stop block body 232 away from the mounting wall 251, and the second rib is located in the middle of the side of the second stop block body away from the mounting wall 251, during the rotation of the rotating assembly 210, the second pushing portion 2112 can contact the first stop block body 232 and apply force to the first stop block body 232, or during the rotation of the rotating assembly 210, the second pushing portion 2112 can contact the second stop block body and apply force to the second stop block body, so that the rotating assembly 210 can switch between different positions, thereby realizing the switching of the automatic transfer switch 100 between different working states.

[0120] The first pushing part 2111 can apply force to the first rib 233, so that the first pushing part 2111 cooperates with the second pushing part 2112 to realize the switching of the rotating component 210 to different positions, thereby realizing the switching of the automatic transfer switch electrical appliance 100 between different working states.

[0121] The third pushing section 2113 can apply force to the second rib, so that the third pushing section 2113 cooperates with the second pushing section 2112 to realize the switching of the rotating component 210 to different positions, thereby realizing the switching of the automatic transfer switch 100 between different working states.

[0122] The first rib 233 has a similar structure to the second rib. The following description will use the first rib 233 as an example to illustrate the structure of the first rib 233 and the second rib.

[0123] Please refer to Figure 13 The first rib 233 includes an abutting rib 2331 and a relief rib 2332. The abutting rib 2331 and the relief rib 2332 are set at an angle, and the relief rib 2332 extends in a direction away from the rotating component 210. The first pushing portion 2111 can push against the abutting rib 2331, and the relief rib 2332 provides relief space for the rotation of the rotating component 210.

[0124] The abutting reinforcement 2331 and the yielding reinforcement 2332 can be connected or spaced apart.

[0125] The angle formed by the engagement reinforcement 2331 and the relief reinforcement 2332 can be a right angle, an acute angle, or an obtuse angle.

[0126] The clearance rib 2332 extends in a direction away from the rotating component 210, and can be formed as a straight rib or an arc rib, as long as the clearance rib 2332 can provide clearance space for the rotation of the rotating component 210. This application example does not make specific limitations in this regard. This application only illustrates that the clearance rib 2332 is arc-shaped.

[0127] In this example, the abutting rib 2331 and the clearance rib 2332 are set at an angle, and the first pushing portion 2111 can push against the abutting rib 2331, so that the rotating component 210 can switch between the open position and the closed position, thereby realizing the switching of the automatic transfer switch 100 between the open state and the closed state. The clearance rib 2332 extends in a direction away from the rotating component 210, so that the clearance rib 2332 can provide clearance space for the rotation of the rotating component 210, avoiding the situation where the rotation of the rotating component 210 is stuck due to the clearance rib 2332 contacting the rotating component 210, thus ensuring the reliability of the operating mechanism 200 and improving the user experience.

[0128] Based on the operating mechanism 200 provided in the above example, the mounting wall 251 is also provided with a first slide groove and a second slide groove, which are located on different sides of the rotating assembly 210.

[0129] One end of the first limiting block 230 is rotatably connected to the mounting wall 251 via the first rotating shaft, and the other end extends into the first sliding groove. During the rotation of the first limiting block 230 relative to the mounting wall 251, the other end of the first limiting block 230 slides in the first sliding groove.

[0130] One end of the second limiting block 240 is rotatably connected to the mounting wall 251 via the second rotating shaft, and the other end extends into the first sliding groove. During the rotation of the second limiting block 240 relative to the mounting wall 251, the other end of the second limiting block 240 slides in the first sliding groove.

[0131] In this example, one end of the first limiting block 230 is rotatably connected to the first rotating shaft, and the other end extends into the first sliding groove. This allows the first rotating shaft and the first sliding groove to limit the first limiting block 230 from different positions, ensuring the reliable connection between the first limiting block 230 and the mounting wall 251. One end of the second limiting block 240 is rotatably connected to the second rotating shaft, and the other end extends into the second sliding groove. This allows the second rotating shaft and the second sliding groove to limit the second limiting block 240 from different positions, ensuring the reliable connection between the second limiting block 240 and the mounting wall 251.

[0132] Based on the operating mechanism 200 provided in the above example, please refer to... Figure 4 and Figure 5 The rotating assembly 210 includes a cam 215 and a turntable 216. The cam 215 is rotatably mounted to the mounting wall 251 and has a first engaging portion 212 and a second engaging portion 213. The turntable 216 covers the side of the cam 215 opposite to the mounting wall 251 and can directly or indirectly drive the cam 215 to rotate. The side wall of the turntable 216 has a pushing portion 211.

[0133] The turntable 216 and the cam 215 can be connected by a hole-shaft fit so that the turntable 216 can drive the cam 215 to rotate relative to the mounting wall 251. The turntable 216 and the cam 215 can be directly connected, and elastic elements or other connecting elements can also be provided between the turntable 216 and the cam 215.

[0134] The first engaging portion 212 and the second engaging portion 213 mentioned above are provided on the cam 215, specifically on the side of the cam 215 facing the mounting wall 251. When the rotating assembly 210 is provided with an engaging groove 214, the engaging groove 214 is provided on the cam 215. The pushing portion 211 is provided on the side wall of the turntable 216.

[0135] The aforementioned operating component 220 drives the cam 215 to rotate via the turntable 216. If the operating component 220 includes a motor, the motor is connected to the turntable 216 via a shaft-hole connection to drive the turntable 216 to rotate. If the operating component 220 includes an operating handle, the operating handle engages with the turntable 216 to drive the turntable 216 to rotate.

[0136] In this application example, by setting the first latching part 212 and the second latching part 213 on the cam 215 and setting the pushing part 211 on the turntable 216, the turntable 216 covers the side of the cam 215 away from the mounting wall 251. Compared with the turntable 216 and the cam 215 being an integral structure, the material used in the rotating component 210 can be reduced, the manufacturing cost of the rotating component 210 can be reduced, and it is beneficial to the miniaturization of the automatic transfer switch 100.

[0137] Based on the operating mechanism 200 provided in the above example, Figure 14 For a second-view structural schematic diagram of a cam provided as an example in this application, please refer to... Figure 4 and Figure 14 The cam 215 has a mounting shaft 2151 and an abutment protrusion 2152 spaced apart on the side opposite to the mounting wall 251. The turntable 216 has a toggle arm on the side facing the cam 215. The rotating assembly 210 also includes a first elastic element 217, which includes an elastic body, a first torsion arm, and a second torsion arm. The elastic body is mounted on the mounting shaft 2151, the first torsion arm abuts against one side of the abutment protrusion 2152, the second torsion arm abuts against the other side of the abutment protrusion 2152, and the toggle arm is located between the first torsion arm and the second torsion arm.

[0138] The first elastic element 217 can be a torsion spring, leaf spring, or other elastic element. In this application, the example is described using a torsion spring as the first elastic element 217.

[0139] The abutment protrusion 2152 can be positioned close to the edge of the cam 215. When the turntable 216 engages with the cam 215, the first torsion arm and the second torsion arm can abut against the opposite sides of the abutment protrusion 2152. The mounting shaft 2151 is positioned close to the center of the cam 215, and the centerline of the mounting shaft 2151 can be collinear with the centerline of the cam 215. The turntable 216 can engage with the cam 215 via the mounting shaft 2151. The elastic body is mounted on the mounting shaft 2151; specifically, the elastic body can be sleeved on the mounting shaft 2151.

[0140] The actuating arm is a protrusion extending from the turntable 216 toward the cam 215. When the turntable 216 and the cam 215 are engaged, the actuating arm is located between the first torsion arm and the second torsion arm. The actuating arm can be integrally formed with the turntable 216, or it can be a separate component from the turntable 216.

[0141] The first torsion arm can be located on the rotation path of the actuating arm rotating in the first direction, in which case the second torsion arm is located on the rotation path of the actuating arm rotating in the second direction. Alternatively, the first torsion arm can be located on the rotation path of the actuating arm rotating in the second direction, in which case the second torsion arm is located on the rotation path of the actuating arm rotating in the first direction.

[0142] During the rotation of the rotating assembly 210 along the first direction, since the turntable 216 is directly connected to the operating assembly 220, the turntable 216 rotates first relative to the mounting wall 251 before the cam 215. The first torsion arm is located on the rotation path of the actuating arm along the first direction. Therefore, during the rotation of the actuating arm on the turntable 216 along the first direction, the actuating arm can apply a force along the first direction to the first torsion arm. At this time, the second torsion arm abuts against the other side of the abutment protrusion 2152, and the first torsion arm deforms under the action of the actuating arm, so that the first elastic element 217 stores energy. As the pushing part 211 applies force to the first limiting block 230, causing the first engaging part 212 of the rotating assembly 210 to separate from the third engaging part 231 of the first limiting block 230, the first elastic member 217 releases energy. Under the action of the first elastic member 217, the cam 215 quickly rotates to the position where the first engaging part 212 engages with the engaging protrusion 2511, so that the rotating assembly 210 can quickly switch from the open position to the first power-on position.

[0143] During the rotation of the rotating assembly 210 in the second direction, the second torsion arm is located on the rotation path of the actuating arm in the second direction. Therefore, during the rotation of the actuating arm on the turntable 216 in the second direction, the actuating arm can apply a force in the second direction to the second torsion arm. At this time, the first torsion arm abuts against the other side of the abutting protrusion 2152, and the second torsion arm deforms under the action of the actuating arm, causing the first elastic element 217 to store energy. The pushing part 211 applies a force to the second limiting block 240, causing the second locking part 213 on the rotating assembly 210 to separate from the fourth locking part 241 on the second limiting block 240. At this time, the first elastic element 217 releases energy. Under the action of the first elastic element 217, the cam 215 quickly rotates to the position where the second locking part 213 engages with the locking protrusion 2511, so that the rotating assembly 210 can quickly switch from the open position to the second power-on position.

[0144] During the process of switching the rotating assembly 210 from the first power-on position to the open position, or from the second power-on position to the open position, the first elastic element 217 can accelerate the operation efficiency of the rotating assembly 210.

[0145] In this example, the cam 215 can provide a mounting carrier for the first elastic element 217. Specifically, the cam 215 is provided with a mounting shaft 2151 and an abutment protrusion 2152. The elastic body of the first elastic element 217 is mounted to the mounting shaft 2151. The first torsion arm of the first elastic element 217 abuts against one side of the abutment protrusion 2152, and the second torsion arm abuts against the other side of the abutment protrusion 2152. The actuating arm of the turntable 216 is located between the first torsion arm and the second torsion arm. Therefore, during the rotation of the actuating arm, the actuating arm can apply a force to the first or second torsion arm, so that the first elastic element 217 is in an energy storage state. During the further rotation of the rotating assembly 210, the first elastic element 217 releases energy, so that the rotating assembly 210 can rotate quickly, thereby enabling the automatic transfer switch 100 to quickly switch from the open state to the closed state, improving the operating efficiency of the automatic transfer switch 100.

[0146] Furthermore, compared to existing technologies that use two independent energy storage elastic elements to achieve electrical connection between the automatic transfer switch and different power sources, and which employ interlocking mechanisms to prevent different power sources from being electrically connected within the automatic transfer switch due to the combined action of the two energy storage elastic elements, the example in this application uses only the first elastic element 217 to store energy for the electrical connection between the first power source and the automatic transfer switch 100, as well as for the electrical connection between the second power source and the automatic transfer switch 100. This avoids different power sources being electrically connected within the automatic transfer switch 100, reducing the number of energy storage elastic elements and eliminating the need for interlocking mechanisms. This reduces the number of components in the automatic transfer switch 100, lowers its manufacturing cost, and facilitates its miniaturization.

[0147] Based on the operating mechanism 200 provided in the above example, please refer to... Figure 4 The turntable 216 includes a turntable body 2161 and a toggle member 2162. The turntable body 2161 is provided with a connecting fixed groove and a through hole. One end of the toggle member 2162 is installed in the fixed groove, and the other end of the toggle member 2162 passes through the through hole and extends in the direction toward the cam 215 to form a toggle arm.

[0148] The pusher 211 mentioned above is located on the side wall of the turntable body 2161.

[0149] The centerline of the fixing groove and the centerline of the through hole can be on the same straight line, or they can be set at an angle. Figure 4 Only the actuating member 2162, whose center line of the fixing groove is set at an angle to the center line of the perforation, is shown in the illustration.

[0150] When the center line of the fixed groove and the center line of the perforation are set at an angle, taking the case where the center line of the fixed groove and the center line of the perforation are basically perpendicular, the actuating member 2162 is roughly right-angled, that is, the two ends of the actuating member 2162 are basically right-angled.

[0151] The centerline of the fixing groove is substantially perpendicular to the centerline of the perforation, meaning that the angle formed by the centerline of the fixing groove and the centerline of the perforation is less than or equal to 95° and greater than or equal to 85°. The difference between the angle formed by the two ends of the actuating element 2162 and the angle formed by the centerline of the fixing groove and the centerline of the perforation is less than or equal to 3°.

[0152] The motor can be connected to the turntable body 2161 by passing through the toggle member 2162, or the motor can be spaced apart from the toggle member 2162.

[0153] One end of the actuating member 2162 is installed in the fixed groove, and the other end of the actuating member 2162 passes through the through hole and extends in the direction toward the cam 215 to form an actuating arm, which extends between the first torsion arm and the second torsion arm.

[0154] In this example, the turntable body 2161 provides a mounting carrier for the actuating element 2162. Since one end of the actuating element 2162 is installed in the fixed groove, the groove wall of the fixed groove can limit the actuating element 2162 during the rotation of the turntable 216, reducing the amplitude of the actuating element 2162's wobbling relative to the turntable body 2161 and ensuring the assembly reliability of the actuating element 2162 and the turntable body 2161. The other end of the actuating element 2162 passes through the through hole and extends towards the cam 215 to form an actuating arm. That is, the fixed groove and through hole in the turntable body 2161 can limit the actuating element 2162 from different positions, reducing the amplitude of the actuating element 2162's wobbling relative to the turntable body 2161 and ensuring the connection reliability between the turntable body 2161 and the actuating element 2162.

[0155] Based on the operating mechanism 200 provided in the above example, please refer to... Figure 5 , Figure 7 as well as Figure 10 The mounting wall 251 is also provided with a first limiting structure 2512 and a second limiting structure 2513. The first limiting structure 2512 is located on the side of the first limiting block 230 away from the rotating component 210, and the second limiting structure 2513 is located on the side of the second limiting block 240 away from the rotating component 210.

[0156] The operating mechanism 200 also includes a second elastic member 260 and a third elastic member 270. One end of the second elastic member 260 abuts against the first limiting structure 2512, and the other end of the second elastic member 260 is movably connected to the first limiting block 230. One end of the third elastic member 270 abuts against the second limiting structure 2513, and the other end of the third elastic member 270 is movably connected to the second limiting block 240.

[0157] The first limiting structure 2512 can be an arc-shaped protrusion or a straight protrusion. There can be only one first limiting structure 2512, or there can be multiple first limiting structures 2512 spaced apart.

[0158] The second limiting structure 2513 can be an arc-shaped protrusion or a straight protrusion. There can be only one second limiting structure 2513, or there can be multiple second limiting structures 2513 spaced apart. The second limiting structure and the first limiting structure 2512 are symmetrically distributed on both sides of the snap-fit ​​protrusion 2511.

[0159] The second elastic element 260 and the third elastic element 270 can be elastic elements such as torsion springs, V-springs, and elastic sheets.

[0160] The first limiting block 230 and the second limiting block 240 have similar structures. The following description will use the first limiting block 230 as an example to illustrate the structure of the first limiting block 230 and the second limiting block 240.

[0161] The first limiting block 230 is provided with a mounting hole. When the first limiting block 230 includes a first block body 232 and a first rib 233, the mounting hole can be provided on the first block body 232 and on the side of the first rib 233 away from the rotating component 210, so as to reduce the possibility that the second elastic member 260 will affect the rotation of the rotating component 210.

[0162] The mounting hole can be a strip-shaped hole, and the shape of the mounting hole can also be adapted to the shape of the first rib 233. This application does not impose specific restrictions on this, as long as the end of the second elastic member 260 can slide in the mounting hole.

[0163] When the automatic transfer switch 100 is in the open state, the first latching part 212 latches with the third latching part 231. At this time, the rotating component 210 applies a force away from the rotating component 210 to the first limit block 230, causing the first limit block 230 to move in a direction away from the rotating component 210, thereby causing the second elastic member 260 to be in an energy storage state. During the rotation of the rotating assembly 210 in the first direction, the first engaging part 212 and the third engaging part 231 separate, and the force applied by the rotating assembly 210 to the first limiting block 230 is removed, allowing the first limiting block 230 to rotate in the direction toward the rotating assembly 210. At the same time, since one end of the second elastic member 260 abuts against the first limiting structure 2512, and the first limiting structure 2512 is located on the side of the first limiting block 230 away from the rotating assembly 210, the energy released by the second elastic member 260 can apply a force toward the rotating assembly 210 to the first limiting block 230, accelerating the rotation speed of the first limiting block 230 toward the rotating assembly 210, thereby improving the engagement efficiency of the third engaging part 231 and the engaging groove 214 on the first limiting block 230, and thus enabling the automatic transfer switch 100 to quickly switch from the open state to the closed state, further improving the operating efficiency of the automatic transfer switch 100.

[0164] The third elastic element 270 and the second limiting structure 2513 have similar functions to the second elastic element 260 and the first limiting structure 2512, and will not be described in detail here.

[0165] The third elastic element 270, the second limiting structure 2513, and the second limiting block 240 work together to achieve similar effects as the second elastic element 260, the first limiting structure 2512, and the first limiting block 230 work together. This application example will not be described in detail here.

[0166] Based on the operating mechanism 200 provided in the above example, please refer to... Figure 1 and Figure 2 The operating mechanism 200 also includes a mounting housing 250 and a rail limiting member 400. The mounting housing 250 includes the mounting wall 251 mentioned above, and the bottom of the mounting housing 250 is provided with a limiting boss and a mounting groove that are positioned opposite each other. The rail limiting member 400 is slidably mounted to the mounting groove, and the rail limiting member 400 engages with the rail by cooperating with the limiting boss.

[0167] The bottom of one or more housings, such as the mounting housing 250 and the switch housing, may be provided with a limiting boss and a mounting groove that are positioned opposite each other. This application example does not impose specific limitations on this.

[0168] The mounting housing 250 can be made of insulating materials, such as polyvinyl chloride, polycarbonate (also known as PC plastic), etc. A mounting housing 250 made of insulating material reduces the possibility of current escaping from the housing to the outside, ensuring the safety of the operating mechanism 200, and thus ensuring the safety of the automatic transfer switch 100.

[0169] When the rail limiting member 400 is not subjected to external force, the distance between the side of the rail limiting member 400 facing the limiting boss and the limiting boss is less than the size of the rail limiting member 400 in the direction of the mounting groove pointing to the limiting boss.

[0170] The rail-mounting member is slidably installed into the mounting groove. During the installation of the operating mechanism 200 onto the rail, the rail pushes against the rail-mounting member 400, causing the rail-mounting member 400 to move within the mounting groove away from the limiting boss, thereby positioning the rail between the limiting boss and the mounting groove. After the rail is in contact with the bottom wall of the housing, the force applied to the rail-mounting member 400 is removed, and the rail-mounting member 400 moves towards the limiting boss. The side of the rail-mounting member 400 facing the limiting boss can extend out of the mounting groove, allowing the rail-mounting member 400 to engage with the limiting boss to connect the housing and the rail.

[0171] In this application example, the rail limiting member 400 can engage with the rail by cooperating with the limiting boss. Since the rail limiting member 400 is installed on the mounting housing 250 and the limiting boss is located on the mounting housing 250, and the mounting housing 250 is part of the operating mechanism 200, the rail limiting member 400 engaging with the rail by cooperating with the limiting boss can realize the connection between the rail and the operating mechanism 200.

[0172] Finally, it should be noted that the above embodiments are merely specific implementations of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An operating mechanism, characterized in that, For an automatic transfer switchgear, the operating mechanism is capable of switching the automatic transfer switchgear between an open state and a closed state, the operating mechanism comprising: Install wall; A rotating assembly is rotatably mounted to the mounting wall. The side wall of the rotating assembly is provided with a pushing part, and the side of the rotating assembly facing the mounting wall is provided with a first locking part and a second locking part at intervals. The first limiting block is rotatably mounted to the mounting wall, and the first limiting block is provided with a third locking part; The second limiting block is rotatably mounted to the mounting wall. The second limiting block is provided with a fourth locking part. The second limiting block is located on the side of the rotating assembly opposite to the first limiting block. When the rotating component is engaged with the first latching part and the third latching part, and engaged with the second latching part and the fourth latching part, the automatic transfer switch is in the open state. The mounting wall is provided with a snap-fit ​​protrusion, which is located on the rotation path of the first snap-fit ​​part as it rotates in the first direction. When the rotating assembly rotates in the first direction, the pushing part pushes against the first limiting block, and the third snap-fit ​​part separates from the first snap-fit ​​part. The rotating assembly continues to rotate in the first direction until the first snap-fit ​​part snaps with the snap-fit ​​protrusion, restricting the rotation of the rotating assembly in the first direction, so that the automatic transfer switch can switch from the open state to the closed state. The load connection terminal of the automatic transfer switch is electrically connected to the first power connection terminal or the second power connection terminal.

2. The operating mechanism according to claim 1, characterized in that, The rotating assembly is also provided with a snap-fit ​​groove, which is located between the first snap-fit ​​part and the second snap-fit ​​part. When the first snap-fit ​​part snaps with the snap-fit ​​protrusion, the fourth snap-fit ​​part snaps with the groove wall of the snap-fit ​​groove away from the first snap-fit ​​part.

3. The operating mechanism according to claim 2, characterized in that, The pushing part includes a first pushing part, a second pushing part, and a third pushing part arranged at intervals. The second pushing part is located between the first pushing part and the third pushing part. The first pushing part and the third pushing part are both located further away from the mounting wall than the second pushing part. The first limiting block further includes a first block body and a first rib. The first rib is located in the middle of the side of the first block body away from the mounting wall. The third snap-fit ​​part is located on the side of the first block body facing the rotating assembly. The first pushing part can push against the first rib, and one side of the second pushing part can push against the first block body. The second limiting block also includes a second block body and a second rib. The second rib is located in the middle of the side of the second block body away from the mounting wall. The fourth snap-fit ​​part is located on the side of the second block body facing the rotating assembly. The third pushing part can push against the second rib, and the other side of the second pushing part can push against the second block body.

4. The operating mechanism according to claim 3, characterized in that, The first rib includes an abutting rib and a relief rib. The abutting rib and the relief rib are set at an angle, and the relief rib extends in a direction away from the rotating component. The first pushing portion can push against the abutting rib, and the relief rib provides relief space for the rotation of the rotating component.

5. The operating mechanism according to any one of claims 1 to 4, characterized in that, The rotating assembly includes: A cam is rotatably mounted to the mounting wall, and the cam is provided with a first engaging portion and a second engaging portion; A turntable is mounted on the side of the cam away from the mounting wall. The turntable can directly or indirectly drive the cam to rotate. The side wall of the turntable is provided with the pushing part.

6. The operating mechanism according to claim 5, characterized in that, The cam is provided with a mounting shaft and an abutment protrusion at intervals on the side opposite to the mounting wall; The turntable is provided with a toggle arm on the side facing the cam; The rotating assembly further includes a first elastic element, which includes an elastic body, a first torsion arm, and a second torsion arm. The elastic body is mounted on the mounting shaft. The first torsion arm abuts against one side of the abutment protrusion, and the second torsion arm abuts against the other side of the abutment protrusion. The actuating arm is located between the first torsion arm and the second torsion arm.

7. The operating mechanism according to claim 6, characterized in that, The turntable includes a turntable body and a toggle member. The turntable body is provided with a connecting fixed groove and a through hole. One end of the toggle member is installed in the fixed groove, and the other end of the toggle member passes through the through hole and extends in the direction toward the cam to form the toggle arm.

8. The operating mechanism according to any one of claims 1 to 4, characterized in that, The mounting wall is also provided with a first limiting structure and a second limiting structure. The first limiting structure is located on the side of the first limiting block away from the rotating component, and the second limiting structure is located on the side of the second limiting block away from the rotating component. The operating mechanism further includes a second elastic element and a third elastic element. One end of the second elastic element abuts against the first limiting structure, and the other end of the second elastic element is movably connected to the first limiting block. One end of the third elastic element abuts against the second limiting structure, and the other end of the third elastic element is movably connected to the second limiting block.

9. The operating mechanism according to claim 1, characterized in that, It also includes a mounting housing, which includes the mounting wall, and the bottom of the mounting housing is provided with a limiting boss and a mounting groove that are positioned opposite each other; The operating mechanism also includes a rail limiting member, which is slidably installed into the mounting groove and engages with the rail by cooperating with the limiting boss.

10. An automatic transfer switch, characterized in that, It includes a switch body and an operating mechanism as described in any one of claims 1 to 9, wherein the operating mechanism is capable of driving the switch body to rotate so that the automatic transfer switch can switch between an open state and a closed state.

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