Actuating mechanism, change-over switch and power distribution equipment

Abstract

The invention provides an execution mechanism, a change-over switch and power distribution equipment, and relates to the technical field of low-voltage electric appliances. The executing mechanism comprises a transmission assembly, an output piece and a limiting assembly, the transmission assembly is used for driving the output piece to act to achieve three-division position switching, a first matching structure and a second matching structure are arranged on the output piece, and the limiting assembly is matched with the first matching structure and / or the second matching structure. Therefore, the actuating mechanism can prevent the output piece from malfunctioning when the matching relation between the output piece and the transmission assembly is released at the closing position on one side, and can prevent the output piece from bouncing back and forth at the double-separation position.

Description

Technical Field

[0001] The present application relates to the technical field of low-voltage electrical appliances, and in particular to an actuator, a transfer switch and a power distribution device. Background Art

[0002] The transfer switch is used to convert two power sources to ensure that important loads receive continuous power supply. The transfer switch has two positions and three positions. The three-position transfer switch has a normal power on position, a double off position and a backup power on position. The double off position is also called the OFF position. At this time, the load is not connected to the normal power supply and the backup power supply.

[0003] In the process of conceiving and implementing this application, the inventors found that there are at least the following problems: the common side mechanism and the standby side mechanism of the three-position conversion switch use the same output member, and the output member rotates clockwise or counterclockwise under the action of the transmission assembly, thereby realizing the conversion of the three positions. In the early stage of the conversion switch from the closed position on one side to the double position, the transmission assembly releases the matching relationship with the output member, and the force applied by the snap-on contact to the output member causes the output member to rotate in advance, and the output member is connected to the moving contact, thereby causing the moving contact to malfunction. When the conversion switch is converted to the double position, the impact of the rotational inertia will drive the output member to move in the closing direction of the other side. This process causes one of the energy storage springs on both sides to stretch and the other to compress, thereby causing the output member to bounce back and forth.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Summary of the invention

[0005] The purpose of the present application is to provide an actuator, a switching switch and a power distribution equipment to solve the above technical problems, which can prevent the output member from malfunctioning when the matching relationship with the transmission component is released in the closed position on one side, and from bouncing back and forth in the double open position.

[0006] In order to solve the above technical problems, the technical solutions adopted in the embodiments of the present application are as follows:

[0007] An embodiment of the present application provides an actuator, including: a transmission assembly, an output member and a limit assembly, wherein the transmission assembly is used to drive the output member to move to achieve three-position switching, and a first matching structure and a second matching structure are provided on the output member, and the limit assembly cooperates with the first matching structure and / or the second matching structure to prevent the output member from malfunctioning when the matching relationship with the transmission assembly is released in the closed position on one side, and from bouncing back and forth in the double open position.

[0008] Optionally, the first matching structure includes a first sub-matching structure and a second sub-matching structure. The first sub-matching structure cooperates with the limit assembly to prevent the output member from malfunctioning when the matching relationship with the transmission assembly is released at the closing position on one side. The second sub-matching structure cooperates with the limit assembly to prevent the output member from malfunctioning when the matching relationship with the transmission assembly is released at the closing position on the other side. The second matching structure cooperates with the limit assembly to prevent the output member from bouncing back and forth when in the double open position.

[0009] Optionally, the first sub-matching structure includes at least one first protrusion, the second sub-matching structure includes at least one second protrusion, the limiting assembly includes at least one first limiting protrusion and at least one second limiting protrusion arranged on the side of the output member, the first limiting protrusion abuts against the first protrusion and / or the second limiting protrusion abuts against the second protrusion to prevent the output member from malfunctioning when the matching relationship with the transmission assembly is released in the closing position on one side.

[0010] Optionally, the second matching structure includes at least two third protrusions, and the two third protrusions abut against the first limiting protrusion and / or the second limiting protrusion to prevent the output member from bouncing back and forth when in the double position.

[0011] Optionally, the limiting assembly includes a limiting member, and the first limiting protrusion and the second limiting protrusion are both located on the limiting member.

[0012] Optionally, the limiting member includes a first limiting member and / or a second limiting member arranged on the side of the output member, and the first limiting protrusion is located on the first limiting member and / or the second limiting protrusion is located on the second limiting member.

[0013] Optionally, the limiting member is arranged on a substrate, and the substrate is a side plate of the actuator and / or a base of the conversion switch.

[0014] Optionally, the connection method between the limiter and the base includes at least one of the following: snap-on; welding; one surface of the base and the limiter is provided with a mounting column, and the other is provided with a mounting hole matching the mounting column, and the mounting hole is sleeved on the mounting column to install the limiter on the base.

[0015] Optionally, a reset member is provided on the base body and / or the limiting member, and the reset member is used to reset the limiting member.

[0016] An embodiment of the present application further provides a transfer switch, which includes a drive device and the above-mentioned actuator, wherein the drive device is connected to the actuator.

[0017] An embodiment of the present application also provides a power distribution device, which is equipped with the above-mentioned actuator.

[0018] The beneficial effects of the present application include at least one of the following:

[0019] The present application provides an actuator, a transfer switch and a power distribution device, wherein the actuator comprises: a transmission assembly, an output member and a limit assembly, wherein the transmission assembly is used to drive the output member to move to realize three-position switching, and a first matching structure and a second matching structure are provided on the output member, and the limit assembly cooperates with the first matching structure and / or the second matching structure, so that the actuator can prevent the output member from malfunctioning when the matching relationship with the transmission assembly is released in the closed position on one side, and from bouncing back and forth in the double open position.

[0020] The transfer switch includes a drive device and the above-mentioned actuator, wherein the drive device is connected to the actuator. The transfer switch can also prevent the output member from malfunctioning when the matching relationship with the transmission component is released in the closed position on one side, and from bouncing back and forth in the double open position.

[0021] The power distribution equipment is equipped with the above-mentioned conversion switch, and the above-mentioned conversion switch is applied to the power distribution equipment. The power distribution equipment can be used in a variety of usage scenarios, such as smart home, Internet of Things industry and more intelligent scenarios to achieve intelligent management. Specifically, it can be used for: Fire-fighting electricity: fire control room, fire pump, smoke exhaust facilities, fire elevator and its drainage pump, fire emergency lighting, etc. Level 1; corridor lighting, duty lighting, guard lighting, obstacle sign lights; rail transit; security system power supply; electronic information room power supply; passenger elevator power; sewage pump; variable frequency speed regulation constant pressure water supply life pump (otherwise it is a secondary load); main office, conference room, general duty room, archive room. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 One of the structural schematic diagrams of the actuator provided in the embodiment of the present application when the output member is in the closing position on one side;

[0024] Figure 2 The second structural schematic diagram of the actuator provided in the embodiment of the present application when the output member is in the closing position on one side;

[0025] Figure 3 One of the structural schematic diagrams of the actuator provided in the embodiment of the present application when the output member is in a double position;

[0026] Figure 4 An axonometric diagram of an actuator provided in an embodiment of the present application;

[0027] Figure 5The third structural schematic diagram of the actuator provided in the embodiment of the present application when the output member is in the closing position on one side;

[0028] Figure 6 The fourth structural schematic diagram of the actuator provided in the embodiment of the present application when the output member is in the closing position on one side;

[0029] Figure 7 The second structural schematic diagram of the actuator provided in the embodiment of the present application when the output member is in a double position.

[0030] Icons: 100-actuator; 110-transmission assembly; 111-gear set; 112-energy storage spring; 113-connecting rod shaft; 120-output member; 121-first protrusion; 122-second protrusion; 123-third protrusion; 124-arc groove; 130-limiting assembly; 131-first limiting protrusion; 132-second limiting protrusion; 133-first spring sheet; 134-second spring sheet; 135-limiting member; 1351-first limiting member; 1352-second limiting member; 140-side plate; 141-mounting column. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. It should be noted that, in the absence of conflict, the various features in the embodiments of the present application can be combined with each other, and the combined embodiments are still within the scope of protection of the present application.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0035] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] The three-position switch has a common power closing position, a double opening position and a standby power closing position. In one implementation, the switch includes a driving mechanism and an actuator 100, the actuator 100 includes a transmission assembly 110 and an output member 120, the driving mechanism, the transmission assembly 110 and the output member 120 are linked, and the driving mechanism drives the output member 120 to rotate clockwise or counterclockwise through the transmission assembly 110 to achieve the conversion of the three positions. The transmission assembly 110 includes a gear set 111, an energy storage spring 112 and a connecting rod shaft 113, one end of the energy storage spring 112 is fixed and the other end is connected to the connecting rod shaft 113, and the connecting rod shaft 113 is linked to the gear set 111. The output member 120 is provided with a matching portion that matches the connecting rod shaft 113. The gear set 111 drives the connecting rod shaft 113 to move in the matching portion under the drive of the driving mechanism. After the connecting rod shaft 113 abuts against the end of the matching portion, the output member 120 can be driven to rotate.

[0038] At the beginning of the conversion of the transfer switch from the one-side closing position to the double opening position, the connecting rod shaft 113 moves from the end of the matching portion to the middle area of ​​the matching portion. At this time, the connecting rod shaft 113 releases the restriction on the position of the output member 120. Under the action of the snap-on contact, the output member 120 will rotate in the direction of the double opening position, thereby causing the moving contact on the output member 120 to malfunction. When the transfer switch is converted to the double opening position, the output member 120 will bounce back and forth under the action of the energy storage spring 112 due to the impact of the rotational inertia.

[0039] In order to solve the above problems, one aspect of the embodiments of the present application is to refer to Figures 1 to 3 , an actuator 100 is provided, comprising: a transmission assembly 110, an output member 120 and a limit assembly 130, the transmission assembly 110 is used to drive the output member 120 to move to realize three-position switching, the output member 120 is provided with a first matching structure and a second matching structure, the limit assembly 130 cooperates with the first matching structure and / or the second matching structure to prevent the output member 120 from driving the moving contact to move to the double position in advance due to the release of the matching relationship with the transmission assembly 110 when the output member 120 is in a closed position on one side (the normal power closed position or the backup power closed position), causing false closing, and preventing the output member 120 from bouncing back and forth due to the impact of rotational inertia after reaching the double position.

[0040] It should be noted that, in the present embodiment, the specific structures of the first matching structure, the second matching structure and the limit assembly 130 are not limited, as long as the limit assembly 130, after matching with the first matching structure and / or the second matching structure, can limit the output member 120 to the closed position on one side when the transmission assembly 110 and the output member 120 are released from the matching relationship, and limit the output member 120 to the double position without bouncing back and forth when the output member 120 moves to the double position.

[0041] Similarly, the structure of the transmission component 110 and the output member 120 is not limited, as long as the transmission component 110 can drive the output member 120 to switch between the three positions, and in the process of switching from the closed position to the open position on one side, the output member 120 is first released from the matching relationship, and then the matching relationship with the output member 120 is re-established to drive the output member 120 to rotate. It can be understood that when the transmission component 110 re-establishes the matching relationship with the output member 120, the limit component 130 should be released from the first matching structure and / or the second matching structure, so that the transmission component 110 drives the output member 120 to move to the double position. Optionally, please refer to Figure 4The transmission assembly 110 includes a gear set 111 and a connecting rod shaft 113 linked with the gear set 111. The connecting rod shaft 113 can rotate around the axis of the output member 120 under the drive of the gear set 111. The output member 120 is provided with an arc groove 124. The connecting rod shaft 113 is at least partially located in the arc groove 124 and can slide along the arc groove 124. When the output member 120 is in the one-side closing position, the connecting rod shaft 113 abuts against one end of the arc groove 124. When the connecting rod shaft 113 is driven by the gear set 111 to move toward the double position, the abutment relationship with the arc groove 124 is first released, and then abuts against the other end of the arc groove 124, and then the output member 120 is driven to move toward the double position.

[0042] The above-mentioned actuator 100 is provided with a first matching structure and a second matching structure on the output member 120, and a limit assembly 130 is provided on the side of the output member 120. The limit assembly 130 cooperates with the first matching structure and / or the second matching structure, so that the actuator 100 can prevent the output member 120 from malfunctioning when the matching relationship with the transmission assembly 110 is released in the closed position on one side, and reciprocating bouncing in the double open position.

[0043] Optionally, the first matching structure includes a first sub-matching structure and a second sub-matching structure, the first sub-matching structure cooperates with the limit assembly 130 to prevent the output member 120 from malfunctioning when the matching relationship with the transmission assembly 110 is released in the closing position on one side (the normal power closing position), the second sub-matching structure cooperates with the limit assembly 130 to prevent the output member 120 from malfunctioning when the matching relationship with the transmission assembly 110 is released in the closing position on the other side (the backup power closing position), and the second matching structure cooperates with the limit assembly 130 to prevent the output member 120 from bouncing back and forth when in the double position.

[0044] The actuator 100 uses a first sub-cooperation structure, a second cooperation structure, and a second sub-cooperation structure to cooperate with the limit assembly 130 at the normal power closing position, the double opening position, and the backup power closing position, respectively. Each cooperating structure only needs to realize one function, which can simplify the structure of the cooperating structure and the limit assembly 130, and further simplify the structure of the actuator 100.

[0045] It should be noted that, in this embodiment, the specific structures of the first sub-matching structure, the second sub-matching structure, the second matching structure and the limiting assembly 130 are still not limited.

[0046] Optionally, the first sub-matching structure includes at least one first protrusion 121, the second sub-matching structure includes at least one second protrusion 122, the limiting assembly 130 includes at least one first limiting protrusion 131 and at least one second limiting protrusion 132 arranged on the side of the output member 120, the first limiting protrusion 131 abuts against the first protrusion 121 and / or the second limiting protrusion 132 abuts against the second protrusion 122, so as to prevent the output member 120 from malfunctioning when the matching relationship with the transmission assembly 110 is released at the other side of the closing position. When the transmission assembly 110 establishes a matching relationship with the output member 120 again, the force applied by the transmission assembly 110 to the output member 120 should be able to make the first protrusion 121 pass over the first limiting protrusion 131, or make the second protrusion 122 pass over the second limiting protrusion 132, so that the transmission assembly 110 drives the output member 120 to move to the double position.

[0047] Optionally, see Figure 1 and Figure 2 , the number of the first protrusion 121, the second protrusion 122, the first limiting protrusion 131 and the second limiting protrusion 132 are all one, the first limiting protrusion 131 is located on the rotation path of the first protrusion 121 moving to the double position, and abuts against the side wall of the first protrusion 121 when one side is in the closing position, thereby limiting the rotation of the output member 120 when the transmission assembly 110 and the output member 120 are released from the matching relationship, thereby preventing the moving contact from malfunctioning; the second limiting protrusion 132 is located on the rotation path of the second protrusion 122 moving to the double position, and abuts against the side wall of the second protrusion 122 when the other side is in the closing position, thereby limiting the rotation of the output member 120 when the transmission assembly 110 and the output member 120 are released from the matching relationship, thereby preventing the moving contact from malfunctioning. It can be understood that when the first limiting protrusion 131 abuts against the first protrusion 121, the second limiting protrusion 132 can abut against the second protrusion 122, or can be separated from the second protrusion 122. Likewise, when the second limiting protrusion 132 abuts against the second protrusion 122 , the first limiting protrusion 131 may abut against the first protrusion 121 or may be separated from the first protrusion 121 .

[0048] Optionally, please refer to Figure 5 There are two first protrusions 121 and two second protrusions 122, and one first limiting protrusion 131 and one second limiting protrusion 132. When one side is in the closing position, the first limiting protrusion 131 is inserted between the two first protrusions 121, and the side wall of the first limiting protrusion 131 abuts against the side wall of at least one first protrusion 121, thereby limiting the rotation of the output member 120; when the other side is in the closing position, the second limiting protrusion 132 is inserted between the two second protrusions 122, and the side wall of the second limiting protrusion 132 abuts against the side wall of at least one second protrusion 122, thereby limiting the rotation of the output member 120.

[0049] Optionally, see Figure 6 The first sub-matching structure includes at least one first protrusion 121, the second sub-matching structure includes at least one second protrusion 122, and the limiting assembly 130 includes at least one first elastic piece 133 and at least one second elastic piece 134 arranged on the side of the output member 120. The first elastic piece 133 abuts against the first protrusion 121 and / or the second elastic piece 134 abuts against the second protrusion 122 to prevent the output member 120 from malfunctioning when the matching relationship with the transmission assembly 110 is released at the other side of the closing position. When the transmission assembly 110 establishes a matching relationship with the output member 120 again, the force applied by the transmission assembly 110 to the output member 120 should be able to make the first protrusion 121 pass over the first elastic piece 133 and / or make the second protrusion 122 pass over the second elastic piece 134, so that the transmission assembly 110 drives the output member 120 to move to the double position.

[0050] Optionally, see Figure 3 and Figure 7 The second matching structure includes at least two third protrusions 123, and the two third protrusions 123 abut against the first limiting protrusion 131 and / or the second limiting protrusion 132 to prevent the output member 120 from bouncing back and forth when in the double position.

[0051] Optionally, the number of the third protrusions 123 is two, such as Figure 3 As shown, the two third protrusions 123 are respectively in contact with the first limiting protrusion 131 and the second limiting protrusion 132 to prevent the output member 120 from bouncing back and forth when in the double position; or Figure 7 As shown, the two third protrusions 123 are respectively in contact with the second limiting protrusion 132 on both sides of the second limiting protrusion 132 to prevent the output member 120 from bouncing back and forth when in the double position.

[0052] Optionally, the limiting assembly 130 includes a limiting member 135, and the first limiting protrusion 131 and the second limiting protrusion 132 are both located on the limiting member 135. That is, an additional limiting member 135 is provided, and the first limiting protrusion 131 and the second limiting protrusion 132 are provided on the limiting member 135. The limiting member 135 may be an integrated limiting member 135 in a door-shaped structure, which is provided around the output member 120, or may be a split limiting member 135, which is provided on both sides of the output member 120. In other embodiments, the limiting member 135 may not be provided additionally, and the first limiting protrusion 131 and the second limiting protrusion 132 may be directly provided on the existing parts of the actuator 100, for example, on the side plate 140 of the actuator 100, and the side plate 140 is used to install the output member 120 and the transmission assembly 110.

[0053] Optionally, the limiting member 135 includes a first limiting member 1351 and / or a second limiting member 1352 disposed on a side of the output member 120 , and the first limiting protrusion 131 is located on the first limiting member 1351 and / or the second limiting protrusion 132 is located on the second limiting member 1352 .

[0054] Optionally, the limiting member 135 includes a first limiting member 1351 and a second limiting member 1352 respectively disposed on opposite sides of the output member 120 , the first limiting protrusion 131 is located on the first limiting member 1351 , and the second limiting protrusion 132 is located on the second limiting member 1352 .

[0055] Optionally, the limiting member 135 is disposed on a substrate, and the substrate is a side plate 140 of the actuator 100 and / or a base of the transfer switch.

[0056] Optionally, the connection method between the stopper 135 and the base body includes at least one of the following:

[0057] Card connection;

[0058] welding;

[0059] One surface of the base and the limiting member 135 is provided with a mounting post 141, and the other surface is provided with a mounting hole matched with the mounting post 141. The mounting hole is sleeved on the mounting post 141 to install the limiting member 135 on the base.

[0060] When the connection method between the stopper 135 and the base includes at least one of clamping and welding, the stopper 135 is fixedly connected to the base. At this time, in order to avoid rigid contact between the output member 120 and the stopper 135 and to ensure that the stopper 135 can be reset, optionally, the first stopper protrusion 131 and / or the second stopper protrusion 132 are elastic protrusions. When the driving force of the transmission assembly 110 on the output member 120 is large enough, the first protrusion 121 and / or the second protrusion 122 on the output member 120 can pass over the elastic protrusion, thereby moving to the double position. The elastic protrusion can also automatically return to its original state after being separated from the first protrusion 121 and / or the second protrusion 122, thereby realizing the reset of the stopper 135.

[0061] When the connection between the stopper 135 and the base is a rotational connection, when the driving force of the transmission assembly 110 on the output member 120 is large enough, the first protrusion 121 and / or the second protrusion 122 on the output member 120 can drive the stopper 135 to rotate, thereby passing over the first stopper protrusion 131 and / or the second stopper protrusion 132 on the stopper 135. At this time, in order to enable the reset member to reset automatically, optionally, a reset member is provided on the base and / or the stopper 135, and the reset member is used to reset the stopper 135. Optionally, the reset member is a clip spring.

[0062] The embodiment of the present application further provides a transfer switch, which includes a drive device and the above-mentioned actuator 100, wherein the drive device is connected to the actuator 100. The transfer switch can also prevent the output member 120 from malfunctioning when the matching relationship with the transmission assembly 110 is released in the one-side closing position, and reciprocating bouncing in the double-open position.

[0063] The embodiment of the present application also provides a power distribution device, which is equipped with the aforementioned actuator 100, and the power distribution device can be equipped with at least one of the following: a distribution box, a cable, a distribution cabinet, a motor, a switch socket, a lamp, an air conditioner, an electric water heater, an electric meter, a camera, a telephone, a computer, etc. Such power distribution equipment can use the relevant structure of the actuator 100 of the present application to realize intelligent management, but is not limited to the above intelligently managed power distribution equipment, and can also be used in non-intelligent power distribution equipment in traditional industries.

[0064] The embodiment of the present application also provides a power distribution device, in which the aforementioned actuator 100 is applied to the power distribution device. The power distribution device can be used in smart scenarios, such as smart homes, the Internet of Things industry, and more smart scenarios, to achieve intelligent management.

[0065] Optionally, the embodiments of the present application can be used for: fire-fighting electricity: fire control room, fire pumps, smoke exhaust facilities, fire elevators and their drainage pumps, fire emergency lighting, etc. at level one; corridor lighting, duty lighting, guard lighting, obstacle sign lights; rail transit; security system power supply; electronic information room power supply; passenger elevator power; sewage pump; variable frequency speed regulation constant pressure water supply and domestic pump (otherwise a secondary load); main offices, conference rooms, general duty room, archives room.

[0066] It is understood that the above scenarios are only examples and do not constitute a limitation on the application scenarios of the technical solutions provided in the embodiments of the present application. The technical solutions of the present application can also be applied to other scenarios. For example, it is known to those skilled in the art that with the evolution of the system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0067] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0068] The steps in the method of the embodiment of the present application can be adjusted in order, combined and deleted according to actual needs.

[0069] The units in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0070] In the present application, the same or similar terminology concepts, technical solutions and / or application scenario descriptions are generally described in detail only the first time they appear. When they appear again later, they are generally not repeated for the sake of brevity. When understanding the technical solutions and other contents of the present application, for the same or similar terminology concepts, technical solutions and / or application scenario descriptions that are not described in detail later, reference can be made to the previous related detailed descriptions.

[0071] In the present application, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0072] The various technical features of the technical solution of the present application can be arbitrarily combined. In order to make the description concise, not all possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of the present application.

[0073] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An actuator, characterized in that: include: A transmission component (110), an output component (120) and a limit component (130), wherein the transmission component (110) is used to drive the output component (120) to move so as to achieve three-position switching, the output component (120) is provided with a first matching structure and a second matching structure, and the limit component (130) cooperates with the first matching structure and / or the second matching structure to prevent the output component (120) from malfunctioning when the matching relationship with the transmission component (110) is released in a one-side closing position, and from bouncing back and forth in a double-open position.

2. The actuator according to claim 1, characterized in that: The first matching structure comprises a first sub-matching structure and a second sub-matching structure, wherein the first sub-matching structure cooperates with the limit assembly (130) to prevent the output member (120) from malfunctioning when the matching relationship with the transmission assembly (110) is released at the one-side closing position, the second sub-matching structure cooperates with the limit assembly (130) to prevent the output member (120) from malfunctioning when the matching relationship with the transmission assembly (110) is released at the other-side closing position, and the second matching structure cooperates with the limit assembly (130) to prevent the output member (120) from bouncing back and forth when in the double open position.

3. The actuator according to claim 2, characterized in that: The first sub-matching structure comprises at least one first protrusion (121), the second sub-matching structure comprises at least one second protrusion (122), the limiting assembly (130) comprises at least one first limiting protrusion (131) and at least one second limiting protrusion (132) arranged on the side of the output member, the first limiting protrusion (131) abuts against the first protrusion (121) and / or the second limiting protrusion (132) abuts against the second protrusion (122), so as to prevent the output member (120) from malfunctioning when the matching relationship with the transmission assembly (110) is released at the one-side closing position.

4. The actuator according to claim 3, characterized in that: The second matching structure comprises at least two third protrusions (123), and the two third protrusions (123) abut against the first limiting protrusion (131) and / or the second limiting protrusion (132) to prevent the output member (120) from bouncing back and forth when in a double position.

5. The actuator according to claim 3, characterized in that: The limiting assembly (130) comprises a limiting member (135), and the first limiting protrusion (131) and the second limiting protrusion (132) are both located on the limiting member (135).

6. The actuator according to claim 5, characterized in that: The limiting member (135) comprises a first limiting member (1351) and / or a second limiting member (1352) arranged on a side of the output member (120), the first limiting protrusion (131) being located on the first limiting member (1351) and / or the second limiting protrusion (132) being located on the second limiting member (1352).

7. The actuator according to claim 5, characterized in that: The limiting member (135) is arranged on a base, and the base is a side plate (140) of the actuator and / or a base of a conversion switch.

8. The actuator according to claim 7, characterized in that: The connection method between the limiting member (135) and the base body includes at least one of the following: Card connection; welding; One surface of the base and the limiting member (135) is provided with a mounting column (141), and the other surface is provided with a mounting hole matched with the mounting column (141), and the mounting hole is sleeved on the mounting column (141) to mount the limiting member (135) on the base.

9. The actuator according to claim 8, characterized in that: A reset member is provided on the base body and / or the limiting member, and the reset member is used to reset the limiting member.

10. A transfer switch, characterized in that: The transfer switch comprises a driving device and an actuator according to any one of claims 1 to 9, wherein the driving device is connected to the actuator.

11. A power distribution device, characterized in that: The power distribution device is equipped with an actuator according to any one of claims 1 to 9.

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