Transmission mechanism and load switch

Abstract

The utility model relates to the technical field of low-voltage electric appliances, and particularly discloses a transmission mechanism and a load switch, the transmission mechanism comprises a connecting swing arm, the connecting swing arm is provided with a rotation center rotatably arranged in the load switch, and the connecting swing arm extends from the rotation center to two opposite sides to form a first arm and a second arm; the first arm is connected with a moving contact assembly of the load switch through a first sliding guide assembly, and the second arm is connected with a driving assembly of the load switch through a second sliding guide assembly; and the driving assembly can form an acting force for driving the connection swing arm to rotate through the second sliding guide assembly, so that the connection swing arm forms an acting force for driving the moving contact assembly to rotate to realize opening or closing through the first sliding guide assembly. According to the invention, the transmission structure can be simplified, the transmission efficiency is improved, and the miniaturization design of the load switch is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of low-voltage electrical appliances, and in particular to a transmission mechanism and a load switch. Background Art

[0002] The load switch can cut off the rated load current and a certain overload current, and realize the closing or opening of the switch through the contact or separation of the moving contact and the static contact inside it. At present, when driving the moving contact to move, a complex transmission structure such as a push card or a gear transmission is used. The current transmission structure has too many transmission parts, resulting in too much clearance between the shaft holes of the transmission parts, which leads to the loss of the displacement transmission of the moving contact and the decrease of the transmission efficiency. In addition, due to the complex driving structure of the prior art, the assembly space occupied is large, which is not conducive to the miniaturization design of the load switch. Utility Model Content

[0003] The purpose of the present application is to provide a transmission mechanism and a load switch, which can not only simplify the transmission structure and improve the transmission efficiency, but also facilitate the miniaturization design of the load switch.

[0004] The embodiment of the present application is implemented as follows:

[0005] In the first aspect, an embodiment of the present application provides a transmission mechanism, including a connecting swing arm, the connecting swing arm having a rotation center rotatably arranged in the load switch, and the connecting swing arm has a first arm and a second arm extending from the rotation center to opposite sides; the first arm is connected to the moving contact assembly of the load switch through a first sliding guide assembly, and the second arm is connected to the driving assembly of the load switch through a second sliding guide assembly; the driving assembly can form a force to drive the connecting swing arm to rotate through the second sliding guide assembly, so that the connecting swing arm forms a force to drive the moving contact assembly to rotate through the first sliding guide assembly to achieve opening or closing of the switch.

[0006] As an optional embodiment, the first arm has a first slide groove at the end near the moving contact assembly; a first guide protrusion that can slide along the extension path of the first slide groove is provided on the moving contact assembly, and the first guide protrusion cooperates with the first slide groove to form a first sliding guide assembly; or, the moving contact assembly has a first slide groove, and a first guide protrusion that can slide along the extension path of the first slide groove is provided on the first arm, and the first guide protrusion cooperates with the first slide groove to form a first sliding guide assembly.

[0007] As an optional embodiment, the driving component is provided with a rotating swing arm, and the rotating swing arm has a second slide groove; the end of the second arm close to the driving component is provided with a second guide protrusion that can slide along the extension path of the second slide groove, and the second guide protrusion cooperates with the second slide groove to form a second sliding guide component; or, the second arm has a second slide groove; the rotating swing arm is provided with a second guide protrusion that can slide along the extension path of the second slide groove, and the second guide protrusion cooperates with the second slide groove to form a second sliding guide component.

[0008] As an optional implementation, the first guide protrusion structure and / or the second guide protrusion structure is a cylindrical pin.

[0009] As an optional implementation, the connecting swing arm is a V-shaped structure with its opening facing the closing position of the moving contact assembly, and the bottom of the V-shaped structure is rotatably arranged.

[0010] As an optional embodiment, the sliding direction of the first sliding guide assembly intersects with the sliding direction of the second sliding guide assembly.

[0011] In the second aspect, an embodiment of the present application provides a load switch, comprising a moving contact assembly, a drive assembly and the above-mentioned transmission mechanism, wherein the drive assembly drives the moving contact assembly to close or open the switch through a connecting swing arm; the drive assembly comprises an electromagnetic coil and a rotating armature assembly, fixed yoke plates are provided at both ends of the electromagnetic coil, the fixed yoke plates extend toward the side of the electromagnetic coil close to the moving contact assembly, and the rotating armature assembly is arranged in the middle of the fixed yoke plates; the electromagnetic coil drives the rotating armature assembly to rotate through the electromagnetic force generated, thereby driving the connecting swing arm to move through the second sliding guide assembly.

[0012] As an optional embodiment, it also includes a shell and a module base installed in the shell; a first rotating shaft and a second rotating shaft parallel to each other are arranged on the module base; the moving contact assembly is arranged on the first rotating shaft and can rotate around the first rotating shaft, and the rotating armature assembly is arranged on the second rotating shaft and can rotate around the second rotating shaft.

[0013] As an optional implementation, an arc extinguishing chamber is provided in the housing, and the arc extinguishing chamber is provided on the movement path of the moving contact assembly, and is used to extinguish the arc generated by the opening and closing of the moving contact assembly and the static contact.

[0014] As an optional embodiment, it also includes a micro switch, which is arranged on the side of the rotating armature assembly close to the moving contact assembly; a protruding structure corresponding to the micro switch is arranged on the rotating armature assembly, and the rotation of the rotating armature assembly can drive the protruding structure to trigger the micro switch.

[0015] The beneficial effects of the embodiments of the present application include:

[0016] The embodiment of the present application provides a transmission mechanism, including a connecting swing arm, the connecting swing arm has a rotation center that is rotatably arranged in the load switch, and the connecting swing arm extends from the rotation center to opposite sides with a first arm and a second arm; the first arm of the embodiment of the present application is connected to the moving contact assembly of the load switch through a first sliding guide assembly, and the second arm of the embodiment of the present application is connected to the driving assembly of the load switch through a second sliding guide assembly; the driving assembly of the embodiment of the present application can form a force to drive the connecting swing arm to rotate through the second sliding guide assembly, and then the connecting swing arm forms a force to drive the moving contact assembly to rotate through the first sliding guide assembly to achieve opening or closing. Compared with the prior art, the embodiment of the present application realizes power transmission through two sliding guide assemblies, and only sets an axial hole match at the rotation center of the connecting swing arm, avoiding setting too many transmission parts and too many axial hole matches, so the embodiment of the present application can effectively reduce the displacement loss of the moving contact assembly, improve the transmission efficiency, and ensure that the moving contact assembly can be accurately controlled. In addition, the embodiment of the present application has few transmission parts and does not need to occupy a large assembly space, which is not only conducive to the stability of the structural design, but also conducive to reducing the volume of the load switch.

[0017] The embodiment of the present application provides a load switch, including a moving contact assembly, a driving assembly and the above-mentioned transmission mechanism, the driving assembly drives the moving contact assembly to close or open the switch by connecting the swing arm; the driving assembly includes an electromagnetic coil and a rotating armature assembly, and the two ends of the electromagnetic coil of the embodiment of the present application are provided with fixed yoke plates, the fixed yoke plates extend toward the side of the electromagnetic coil close to the moving contact assembly, and the rotating armature assembly is arranged in the middle of the fixed yoke plates; the electromagnetic coil of the embodiment of the present application drives the rotating armature assembly to rotate by the electromagnetic force generated, thereby driving the connecting swing arm to move through the second sliding guide assembly. Compared with the prior art, the load switch of the embodiment of the present application adopts the above-mentioned transmission mechanism, so the load switch of the embodiment of the present application can effectively reduce the displacement loss of the moving contact assembly, improve the transmission efficiency, and ensure that the moving contact assembly can be accurately controlled. In addition, the embodiment of the present application has few transmission components and does not need to occupy a large assembly space, which is not only conducive to the stability of the structural design, but also conducive to reducing the volume of the load switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] Figure 1This is one of the structural schematic diagrams of the load switch in the embodiment of the present application;

[0020] Figure 2 This is the second structural diagram of the load switch in the embodiment of the present application;

[0021] Figure 3 This is the third structural diagram of the load switch of the embodiment of the present application;

[0022] Figure 4 This is the fourth structural schematic diagram of the load switch according to the embodiment of the present application.

[0023] icon:

[0024] 100-connecting swing arm; 101-rotation center; 102-first arm; 103-second arm; 104-first sliding guide assembly; 105-moving contact assembly; 106-second sliding guide assembly; 107-driving assembly; 108-first slide groove; 109-first guide protrusion; 110-rotating swing arm; 111-second slide groove; 112-second guide protrusion; 113-V-shaped structure; 114-electromagnetic coil; 115-rotating armature assembly; 116-fixed yoke plate; 117-housing; 118-arc extinguishing chamber. DETAILED DESCRIPTION

[0025] 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.

[0026] 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 which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0027] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. 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.

[0028] 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.

[0029] The load switch can cut off the rated load current and a certain overload current, and realize the closing or opening of the switch through the contact or separation of the moving contact and the static contact inside it. At present, when driving the moving contact to move, a complex transmission structure such as a push card or a gear transmission is used. The current transmission structure has too many transmission parts, resulting in too much clearance between the shaft holes of the transmission parts, which leads to the loss of the displacement transmission of the moving contact and the decrease of the transmission efficiency. In addition, due to the complex driving structure of the prior art, the assembly space occupied is large, which is not conducive to the miniaturization design of the load switch.

[0030] In order to solve the above technical problems, the embodiments of the present application provide a transmission mechanism and a load switch.

[0031] Reference Figure 1 and Figure 2 As shown, an embodiment of the present application provides a transmission mechanism, including a connecting swing arm 100, the connecting swing arm 100 has a rotation center 101 rotatably arranged in the load switch, and the connecting swing arm 100 extends from the rotation center 101 to opposite sides with a first arm 102 and a second arm 103; the first arm 102 is connected to the moving contact assembly 105 of the load switch through a first sliding guide assembly 104, and the second arm 103 is connected to the driving assembly 107 of the load switch through a second sliding guide assembly 106; the driving assembly 107 can form a force to drive the connecting swing arm 100 to rotate through the second sliding guide assembly 106, so that the connecting swing arm 100 forms a force to drive the moving contact assembly 105 to rotate through the first sliding guide assembly 104 to achieve opening or closing of the switch.

[0032] It should be noted that the transmission mechanism of the embodiment of the present application adopts a connecting swing arm 100, the middle part of the connecting swing arm 100 has a rotation center 101, and the connecting swing arm 100 can be driven to rotate around the rotation center 101.

[0033] In the embodiment of the present application, a first sliding guide assembly 104 and a second sliding guide assembly 106 are respectively arranged on the first arm 102 and the second arm 103 of the connecting swing arm 100, so that the connecting swing arm 100 can realize linkage between the driving assembly 107 and the moving contact assembly 105. When the driving assembly 107 is in motion, the connecting swing arm 100 is driven to rotate through the second sliding guide assembly 106, and then the first sliding guide assembly 104 drives the moving contact assembly 105 to realize opening or closing.

[0034] It should be noted that the specific structures of the first sliding guide assembly 104 and the second sliding guide assembly 106 can be selected and set by technicians in the field according to needs, and are not specifically limited here.

[0035] The specific structure of the connecting swing arm 100 is not particularly limited here, and technicians in this field can choose it according to needs.

[0036] An embodiment of the present application provides a transmission mechanism, including a connecting swing arm 100, the connecting swing arm 100 has a rotation center 101 rotatably arranged in the load switch, and the connecting swing arm 100 has a first arm 102 and a second arm 103 extending from the rotation center 101 to opposite sides; the first arm 102 of the embodiment of the present application is connected to the moving contact assembly 105 of the load switch through the first sliding guide assembly 104, and the second arm 103 of the embodiment of the present application is connected to the driving assembly 107 of the load switch through the second sliding guide assembly 106; the driving assembly 107 of the embodiment of the present application can form a force to drive the connecting swing arm 100 to rotate through the second sliding guide assembly 106, and then the connecting swing arm 100 forms a force to drive the moving contact assembly 105 to rotate to achieve opening or closing through the first sliding guide assembly 104. Compared with the prior art, the embodiment of the present application realizes power transmission through two sliding guide components, and only sets the shaft hole matching at the rotation center 101 of the connecting swing arm 100, avoiding setting too many transmission parts and too many shaft hole matching, so the embodiment of the present application can effectively reduce the displacement loss of the moving contact assembly 105, improve the transmission efficiency, and ensure that the moving contact assembly 105 can be accurately controlled. In addition, the embodiment of the present application has few transmission parts and does not need to occupy a large assembly space, which is not only conducive to the stability of the structural design, but also conducive to reducing the volume of the load switch.

[0037] Reference Figure 1 and Figure 3 As shown, as an optional embodiment, the first arm 102 has a first slide groove 108 at the end near the moving contact assembly 105; a first guide protrusion 109 that can slide along the extension path of the first slide groove 108 is provided on the moving contact assembly 105, and the first guide protrusion 109 cooperates with the first slide groove 108 to form a first sliding guide assembly 104.

[0038] Furthermore, the embodiment of the present application discloses a first sliding guide assembly 104 .

[0039] It should be noted that the first arm 102 has a first slide groove 108 at the end close to the moving contact assembly 105 . The first slide groove 108 may be a strip-shaped groove or a strip-shaped hollow groove provided on the first arm 102 .

[0040] The extension direction of the first slide groove 108 may be consistent with the extension direction of the first arm 102 , and a corresponding angle may also be set, which can be set by those skilled in the art as required.

[0041] Reference Figure 1 and Figure 4 As shown, as an optional embodiment, a rotating swing arm 110 is provided on the driving component 107, and the rotating swing arm 110 has a second slide groove 111; the end of the second arm 103 close to the driving component 107 is provided with a second guide protrusion 112 that can slide along the extension path of the second slide groove 111, and the second guide protrusion 112 cooperates with the second slide groove 111 to form a second sliding guide component 106.

[0042] Furthermore, the embodiment of the present application discloses a second sliding guide assembly 106 .

[0043] It should be noted that the rotating swing arm 110 is provided with a second slide groove 111 at the end close to the moving contact assembly 105 . The second slide groove 111 may be a strip-shaped groove provided on the rotating swing arm 110 , or a strip-shaped hollow groove.

[0044] The extension direction of the second slide groove 111 may be consistent with the extension direction of the rotating swing arm 110 , and a corresponding angle may also be set, which can be set by technicians in this field as needed.

[0045] It should be noted that the rotating swing arm 110 of the embodiment of the present application is driven by the driving component 107 to achieve swinging.

[0046] Different from the above-mentioned embodiment, the first sliding guide assembly 104 and the second sliding guide assembly 106 also have the following configuration forms:

[0047] First, the first slide groove 108 is set on the moving contact assembly, the first guide protrusion 109 is set on the first arm 102, and the first guide protrusion 109 cooperates with the first slide groove 108 to form a first sliding guide assembly 104; the second slide groove 111 is set on the second arm 103, the second guide protrusion 112 is set on the rotating swing arm 110, and the second guide protrusion 112 cooperates with the second slide groove 111 to form a second sliding guide assembly 106.

[0048] Secondly, the first slide groove 108 is arranged on the first arm 102, and the first guide protrusion 109 is arranged on the moving contact assembly, and the two cooperate to form a first sliding guide assembly 104; the second slide groove 111 is arranged on the second arm 103, and the second guide protrusion 112 is arranged on the rotating swing arm 110, and the second guide protrusion 112 cooperates with the second slide groove 111 to form a second sliding guide assembly 106.

[0049] Third, the first guide protrusion 109 is set on the first arm 102, and the first slide groove 108 is set on the moving contact assembly, and the two cooperate to form a first sliding guide assembly 104; the second guide protrusion 112 is set on the second arm 103, and the second slide groove 111 is set on the rotating swing arm 110, and the second guide protrusion 112 and the second slide groove 111 cooperate to form a second sliding guide assembly 106.

[0050] As an optional implementation, the first guide protrusion 109 structure and / or the second guide protrusion 112 structure is a cylindrical pin.

[0051] The first guide protrusion 109 and the second guide protrusion 112 of the embodiment of the present application both use cylindrical pins, which form line contact with the inner walls of the first slide groove 108 and the second slide groove 111 through arc surfaces. Therefore, the contact area formed is small, so that the first guide protrusion 109 and the second guide protrusion 112 can slide smoothly.

[0052] It should be noted that both the first slide groove 108 and the second slide groove 111 are linear slide grooves.

[0053] Reference Figure 3 As shown, as an optional embodiment, the connecting swing arm 100 is a V-shaped structure 113 with its opening facing the closing position of the moving contact assembly 105, and the bottom of the V-shaped structure 113 is rotatably arranged.

[0054] Furthermore, the embodiment of the present application discloses a specific structure of connecting the swing arm 100 .

[0055] It should be noted that the rotation center 101 is located at the bottom of the V-shaped structure 113, that is, the bottom of the V-shaped structure 113 is rotatably connected to the housing 117 of the load switch. For the specific angle of the V-shaped structure 113, those skilled in the art can select it according to needs. Among them, the angle range of the V-shaped structure 113 is 90°-145°. Exemplarily, the angle of the V-shaped structure 113 is 100°. Preferably, the angle of the V-shaped structure 113 is 113°.

[0056] It should be noted that the sliding direction of the first sliding guide assembly 104 intersects with the sliding direction of the second sliding guide assembly 106 .

[0057] Reference Figure 2 and Figure 4 As shown, an embodiment of the present application provides a load switch, including a moving contact assembly 105, a drive assembly 107 and the above-mentioned transmission mechanism, wherein the drive assembly 107 drives the moving contact assembly 105 to close or open the switch by connecting the swing arm 100; the drive assembly 107 includes an electromagnetic coil 114 and a rotating armature assembly 115, and both ends of the electromagnetic coil 114 of the embodiment of the present application are provided with fixed yoke plates 116, the fixed yoke plate 116 extends toward the side of the electromagnetic coil 114 close to the moving contact assembly 105, and the rotating armature assembly 115 is arranged in the middle of the fixed yoke plate 116; the electromagnetic coil 114 of the embodiment of the present application drives the rotating armature assembly 115 to rotate by the electromagnetic force generated, thereby driving the connecting swing arm 100 to move through the second sliding guide assembly 106.

[0058] Compared with the prior art, the load switch of the embodiment of the present application adopts the above-mentioned transmission mechanism, so the load switch of the embodiment of the present application can effectively reduce the displacement loss of the moving contact assembly 105, improve the transmission efficiency, and ensure that the moving contact assembly 105 can be accurately controlled. In addition, the embodiment of the present application has fewer transmission components and does not need to occupy a large assembly space, which is not only conducive to the stability of the structural design, but also conducive to reducing the size of the load switch.

[0059] Compared with the prior art, the load switch of the embodiment of the present application has the advantages of high transmission efficiency and small overall volume. The embodiment of the present application adopts the above-mentioned moving contact drive mechanism, with fewer transmission parts, which is conducive to greatly reducing the difficulty of assembly and facilitating the production and assembly of the load switch.

[0060] As an optional embodiment, it also includes a shell 117 and a module base installed in the shell 117; a first rotating shaft and a second rotating shaft parallel to each other are set on the module base; the moving contact assembly 105 is set on the first rotating shaft and can rotate around the first rotating shaft, and the rotating armature assembly 115 is set on the second rotating shaft and can rotate around the second rotating shaft.

[0061] Reference Figure 2 As shown, as an optional implementation, an arc extinguishing chamber 118 is provided in the housing 117, and the arc extinguishing chamber 118 is provided on the movement path of the moving contact assembly 105, and is used to extinguish the arc generated by the opening and closing of the moving contact assembly 105 and the static contact. The embodiment of the present application can extinguish the arc generated during the opening and closing of the moving contact assembly 105 through the arc extinguishing chamber 118, thereby improving the service life and safety of the entire structure.

[0062] As an optional embodiment, a micro switch is also included, which is arranged on the side of the rotating armature assembly 115 close to the moving contact assembly 105; a protruding structure corresponding to the micro switch is arranged on the rotating armature assembly 115, and the rotation of the rotating armature assembly can drive the protruding structure to trigger the micro switch.

[0063] The embodiment of the present application can accurately detect the opening or closing state of the moving contact assembly 105 through the provision of a micro switch, which is convenient for the staff to operate.

[0064] 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. A transmission mechanism, characterized in that: The invention comprises a connecting swing arm (100), wherein the connecting swing arm (100) has a rotation center (101) rotatably arranged in a load switch, and the connecting swing arm (100) has a first arm (102) and a second arm (103) extending from the rotation center (101) to opposite sides; the first arm (102) is connected to a moving contact assembly (105) of the load switch through a first sliding guide assembly (104), and the second arm (103) is connected to a driving assembly (107) of the load switch through a second sliding guide assembly (106); the driving assembly (107) can form a force driving the connecting swing arm (100) to rotate through the second sliding guide assembly (106), so that the connecting swing arm (100) forms a force driving the moving contact assembly (105) to rotate through the first sliding guide assembly (104) to realize opening or closing of the switch.

2. The transmission mechanism according to claim 1, characterized in that: The end of the first arm (102) close to the moving contact assembly (105) is provided with a first slide groove (108); the moving contact assembly (105) is provided with a first guide protrusion (109) that can slide along the extension path of the first slide groove (108); the first guide protrusion (109) cooperates with the first slide groove (108) to form a first sliding guide assembly (104); Alternatively, the moving contact assembly (105) has a first slide groove (108), and a first guide protrusion (109) that can slide along an extension path of the first slide groove (108) is provided on the first arm (102), and the first guide protrusion (109) cooperates with the first slide groove (108) to form a first sliding guide assembly (104).

3. The transmission mechanism according to claim 2, characterized in that: The driving assembly (107) is provided with a rotating swing arm (110), and the rotating swing arm (110) has a second slide groove (111); the end of the second arm (103) close to the driving assembly (107) is provided with a second guide protrusion (112) that can slide along the extension path of the second slide groove (111), and the second guide protrusion (112) cooperates with the second slide groove (111) to form a second sliding guide assembly (106); Alternatively, the second arm (103) has a second slide groove (111); the rotating swing arm (110) is provided with a second guide protrusion (112) that can slide along the extension path of the second slide groove (111), and the second guide protrusion (112) cooperates with the second slide groove (111) to form a second sliding guide assembly (106).

4. The transmission mechanism according to claim 3, characterized in that: The first guide protrusion (109) structure and / or the second guide protrusion (112) structure is a cylindrical pin.

5. The transmission mechanism according to any one of claims 1 to 4, characterized in that: The connecting swing arm (100) is a V-shaped structure (113) with its opening facing the closing position of the moving contact assembly (105), and the bottom of the V-shaped structure (113) is rotatably arranged.

6. The transmission mechanism according to any one of claims 1 to 4, characterized in that: The sliding direction of the first sliding guide component (104) intersects with the sliding direction of the second sliding guide component (106).

7. A load switch, characterized in that: It comprises a moving contact assembly (105), a driving assembly (107) and a transmission mechanism as claimed in any one of claims 1 to 6, wherein the driving assembly (107) drives the moving contact assembly (105) to close or open the switch by connecting the swing arm (100); the driving assembly (107) comprises an electromagnetic coil (114) and a rotating armature assembly (115), fixed yoke plates (116) are arranged at both ends of the electromagnetic coil (114), the fixed yoke plates (116) extend toward the side of the electromagnetic coil (114) close to the moving contact assembly (105), and the rotating armature assembly (115) is arranged in the middle of the fixed yoke plates (116); the electromagnetic coil (114) drives the rotating armature assembly (115) to rotate by the electromagnetic force generated, thereby driving the connecting swing arm (100) to move through the second sliding guide assembly (106).

8. The load switch according to claim 7, characterized in that: It also includes a shell (117) and a module base installed in the shell (117); a first rotating shaft and a second rotating shaft parallel to each other are arranged on the module base; the moving contact assembly (105) is arranged on the first rotating shaft and can rotate around the first rotating shaft, and the rotating armature assembly (115) is arranged on the second rotating shaft and can rotate around the second rotating shaft.

9. The load switch according to claim 8, characterized in that: An arc extinguishing chamber (118) is provided in the housing (117); the arc extinguishing chamber (118) is provided on the moving path of the moving contact assembly (105) and is used to extinguish an arc generated by the opening and closing of the moving contact assembly (105) and the static contact.

10. The load switch according to claim 7, characterized in that: It also includes a micro switch, which is arranged on a side of the rotating armature assembly (115) close to the moving contact assembly (105); a protruding structure corresponding to the micro switch is arranged on the rotating armature assembly (115), and the rotation of the rotating armature assembly (115) can drive the protruding structure to trigger the micro switch.

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