Change-over switch

Abstract

The utility model provides a change-over switch, and relates to the low-voltage electrical field. The change-over switch comprises a shell and a temperature sampling module, the shell comprises a first cavity and a second cavity, a contact unit is arranged in the first cavity, and the contact unit comprises a moving contact, a static contact assembly and a load end electrically connected with the moving contact; a driving unit is arranged in the second cavity, and the driving unit can drive the moving contact to be in contact with or separated from the static contact assembly; the temperature sampling module passes through the second cavity, is arranged in the first cavity, and is connected with the load end and the wiring port so as to sample the temperature of the first cavity. The change-over switch obtained by the above design can directly monitor the temperature of the contact unit by only arranging the temperature sampling module at the load end for sampling while saving the internal space, thereby improving the service life and reliability of the change-over switch.

Description

Technical Field

[0001] The utility model relates to the field of low-voltage electrical equipment, in particular to a conversion switch. Background Art

[0002] In the field of electrical technology, automatic transfer switching devices are a common low-voltage electrical device, often used in important power distribution situations to achieve circuit switching to ensure normal power supply to the load end.

[0003] Automatic transfer switches are often required to complete circuit switching, connect and carry short-circuit currents, but not to disconnect short-circuit currents. Therefore, automatic transfer switches pay more attention to reliability under normal use and the ability of transfer switches to carry short-circuit current shocks within a certain period of time.

[0004] The existing automatic transfer switches do not yet have the function of temperature monitoring. When the temperature of the switch itself rises too high due to a fault, it will cause great damage to the product itself and affect its service life. Utility Model Content

[0005] The utility model aims to provide a transfer switch, which can save internal space while sampling and monitoring the temperature of a contact unit through a temperature sampling module, thereby improving the service life and reliability of the transfer switch.

[0006] The embodiment of the utility model is achieved as follows:

[0007] One aspect of the utility model provides a switching switch, including a shell and a temperature sampling module, the shell including a first cavity and a second cavity, a contact unit is provided in the first cavity, the contact unit includes a moving contact, a stationary contact assembly and a load end electrically connected to the moving contact; a driving unit is provided in the second cavity, the driving unit can drive the moving contact to contact or separate from the stationary contact assembly; the temperature sampling module passes through the second cavity and is arranged in the first cavity, and is respectively connected to the load end and the wiring port to sample the temperature of the first cavity.

[0008] Optionally, the temperature sampling module includes a sealed temperature probe, one end of which is attached to a load bus at the load end, and the other end of which is connected to an external detection device through a wiring port.

[0009] Optionally, the first cavity and the second cavity are away from each other, and the first cavity is provided with a connecting hole, which passes through the first cavity and the second cavity; one end of the sealed temperature probe is connected to the wiring port, and the other end passes through the connecting hole from the second cavity and extends into the first cavity to be connected to the load end in the first cavity.

[0010] Optionally, the relative distances between the connection hole and the contact unit and the drive unit are all greater than 15 mm.

[0011] Optionally, the driving unit includes a motor and a rotating shaft driven by the motor, the rotating shaft passes through the first cavity and the second cavity and is directly connected to the moving contact, and the motor drives the moving contact to rotate via the rotating shaft so that the moving contact contacts or separates from the static contact assembly.

[0012] Optionally, the driving unit includes a motor, a rotating shaft and a driving gear; the rotating shaft is drive-connected to the motor, a driving gear is sleeved on the rotating shaft, and a driven gear meshing with the driving gear is provided on the side of the moving contact away from the first cavity. The motor drives the driving gear and the driven gear to rotate via the rotating shaft, thereby driving the moving contact to rotate and contact or separate with the static contact assembly.

[0013] Optionally, at least one transmission gear is provided between the driving gear and the driven gear. When there is one transmission gear, the two sides of the transmission gear are respectively meshed with the driving gear and the driven gear; when there are multiple transmission gears, two adjacent transmission gears are meshed with each other, and the two transmission gears located at the two ends are respectively meshed with the driving gear and the driven gear.

[0014] Optionally, the moving contact is arranged in the middle of the first cavity and partially penetrates the second cavity; the part of the moving contact arranged in the second cavity is sleeved with a driven gear; a transmission gear is meshed on one side of the driven gear, and a driving gear is meshed on the side of the transmission gear away from the driven gear; the motor is arranged above the moving contact, the static contact assembly and the load end, and is also located between the static contact assembly and the load end.

[0015] Optionally, the driving unit includes a driving rod and a driven rod rotatably connected to the driving rod, the end of the driven rod facing away from the driving rod is fixedly connected to the moving contact, and the driving rod drives the moving contact to rotate via the driven rod so that the moving contact contacts or separates from the static contact assembly; the driving unit also includes a driver, which is transmission-connected to one end of the driving rod away from the driven rod, and the driver can drive the moving contact to rotate via the driving rod and the driven rod.

[0016] Optionally, the stationary contact assembly includes at least two stationary contact plates, the moving contact contacts and cooperates with the at least two stationary contact plates for switching of the circuit, and the at least two stationary contact plates are distributed on opposite sides of the moving contact.

[0017] The beneficial effects of the utility model include:

[0018] The present application provides a transfer switch, including a housing and a temperature sampling module, wherein the housing includes a first cavity and a second cavity, wherein a contact unit is arranged in the first cavity, wherein the contact unit includes a moving contact, a stationary contact assembly, and a load end electrically connected to the moving contact; wherein a driving unit is arranged in the second cavity, wherein the driving unit can drive the moving contact to contact or separate from the stationary contact assembly; wherein the temperature sampling module passes through the second cavity and is arranged in the first cavity, and is respectively connected to the load end and the wiring port to sample the temperature of the first cavity. The transfer switch obtained by the above design can directly monitor the temperature of the contact unit by only setting the temperature sampling module sampling at the load end while saving internal space, thereby improving the service life and reliability of the transfer switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, 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 utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 One of the structural schematic diagrams of the first cavity of the conversion switch provided by the embodiment of the utility model;

[0021] Figure 2 A second structural schematic diagram of the first cavity of the conversion switch provided by an embodiment of the utility model;

[0022] Figure 3 One of the structural schematic diagrams of the second cavity of the conversion switch provided by the embodiment of the utility model;

[0023] Figure 4 A third structural diagram of the first cavity of the conversion switch provided by an embodiment of the utility model;

[0024] Figure 5 A second structural diagram of the second cavity of the conversion switch provided by the embodiment of the utility model;

[0025] Figure 6 A third structural diagram of the second cavity of the conversion switch provided by an embodiment of the utility model;

[0026] Figure 7 The fourth structural schematic diagram of the second cavity of the conversion switch provided in the embodiment of the utility model.

[0027] Icon: 100-conversion switch; 110-housing; 111-first cavity; 112-second cavity; 113-contact unit; 1131-moving contact; 1132-static contact assembly; 1132a-static contact plate; 1133-load end; 1133a-load bus; 114-drive unit; 1141-motor; 1142-driving gear; 1143-transmission gear; 1144-driven gear; 1145-driving rod; 1146-driven rod; 1147-driver; 115-connecting hole; 120-temperature sampling module; 121-sealed temperature probe; 130-wiring port. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] 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.

[0031] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. 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.

[0032] 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.

[0033] In the description of the present invention, it is also necessary to explain 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 components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Please refer to Figure 1 , Figure 2 and Figure 3 The present embodiment provides a transfer switch 100, including a housing 110 and a temperature sampling module 120. The housing 110 includes a first cavity 111 and a second cavity 112. A contact unit 113 is provided in the first cavity 111. The contact unit 113 includes a moving contact 1131, a stationary contact assembly 1132, and a load end 1133 electrically connected to the moving contact 1131. A driving unit 114 is provided in the second cavity 112. The driving unit 114 can drive the moving contact 1131 to contact or separate from the stationary contact assembly 1132. The temperature sampling module 120 passes through the second cavity 112 and is disposed in the first cavity 111, and is respectively connected to the load end 1133 and the wiring port 130 to sample the temperature of the first cavity 111.

[0035] Specifically, Figure 1 , Figure 2 and Figure 3 The present application provides a switching switch 100, which includes a shell 110, and the shell 110 is composed of a first cavity 111 and a second cavity 112. The first cavity 111 and the second cavity 112 are independent of each other. The first cavity 111 is used to place a contact unit 113, and the second cavity 112 is used to place a drive unit 114. The contact unit 113 and the drive unit 114 are separately arranged to isolate and insulate the contact unit 113 and the drive unit 114.

[0036] The contact unit 113 includes a moving contact 1131, a stationary contact assembly 1132 and a load end 1133. The load end 1133 is electrically connected to the moving contact 1131. The driving assembly is transmission-connected to the moving contact 1131 to drive the moving contact 1131 to rotate and realize contact or separation with the stationary contact assembly 1132. The moving contact 1131 disposed in the first cavity 111 is partially disposed in the second cavity 112, so that the driving unit 114 located in the second cavity 112 can be transmission-connected to the moving contact 1131 to realize driving of the moving contact 1131.

[0037] In order to sample and monitor the temperature of the contact unit 113, the transfer switch 100 further includes a temperature sampling module 120, one end of which passes through the second cavity 112 and the first cavity 111 in sequence, one end of which is disposed at the load end 1133 in the first cavity 111, and the other end of which extends through the second cavity 112 to the edge of the housing 110 and is connected to a wiring port 130 located at the edge of the housing 110. The temperature sampling module 120 can be connected to an external temperature monitoring device through the wiring port 130, so that the user can monitor the temperature in the first cavity 111.

[0038] It should be noted that, first, in one possible implementation mode of the present application, the temperature sampling module 120 includes a sealed temperature probe 121, one end of the sealed temperature probe 121 is attached to the load bus 1133a of the load end 1133, and the other end is connected to the external detection device through the wiring port 130.

[0039] By setting the sealed temperature probe 121 , the stability and reliability of the temperature sampling process can be guaranteed. The sealed temperature probe 121 itself has good measurement accuracy and can also improve the service life of the temperature sampling module 120 .

[0040] Second, if Figure 2 As shown, in one possible implementation mode of the present application, the stationary contact assembly 1132 includes at least two stationary contact plates 1132a, the moving contact 1131 contacts and cooperates with at least two stationary contact plates 1132a for circuit switching, and at least two stationary contact plates 1132a are distributed on opposite sides of the moving contact 1131.

[0041] Specifically, the stationary contact assembly 1132 includes at least two stationary contact plates 1132a. Figure 2As shown, in this embodiment, the static contact assembly 1132 includes two static contact plates 1132a, and the two static contact plates 1132a are evenly distributed on the opposite sides of the moving contact 1131. The two static contact plates 1132a, one moving contact 1131 and the load end 1133 form a single-stage main circuit; the driving unit 114 can drive the moving contact 1131 to rotate so as to respectively contact or separate with the static contact plates 1132a, thereby realizing circuit switching.

[0042] The transfer switch 100 provided in the present application includes a housing 110 and a temperature sampling module 120. The housing 110 includes a first cavity 111 and a second cavity 112. A contact unit 113 is provided in the first cavity 111. The contact unit 113 includes a moving contact 1131, a stationary contact assembly 1132, and a load terminal 1133 electrically connected to the moving contact 1131. A driving unit 114 is provided in the second cavity 112. The driving unit 114 can drive the moving contact 1131 to contact or separate from the stationary contact assembly 1132. The temperature sampling module 120 passes through the second cavity 112 and is disposed in the first cavity 111, and is respectively connected to the load terminal 1133 and the wiring port 130 to sample the temperature of the first cavity 111. The transfer switch 100 obtained by the above design can directly monitor the temperature of the contact unit 113 by only setting the temperature sampling module 120 at the load terminal 1133 while saving internal space, thereby improving the service life and reliability of the transfer switch 100.

[0043] In one possible implementation of the present application, Figure 2 , Figure 3 and Figure 4 As shown, the first cavity 111 and the second cavity 112 are separated from each other, and the first cavity 111 is provided with a connecting hole 115, which passes through the first cavity 111 and the second cavity 112; one end of the sealed temperature probe 121 is connected to the wiring port 130, and the other end passes through the connecting hole 115 from the second cavity 112 and extends into the first cavity 111 to be connected to the load end 1133 in the first cavity 111.

[0044] Specifically, the first cavity 111 and the second cavity 112 are separated from each other and are respectively arranged on opposite sides of the conversion switch 100; the moving contact 1131 arranged in the first cavity 111 is partially penetrated into the second cavity 112, so that the driving unit 114 located in the second cavity 112 can be connected to the moving contact 1131 through transmission, thereby driving the moving contact 1131.

[0045] In order to ensure that the sealed temperature probe 121 can stably and reliably penetrate the first cavity 111 and the second cavity 112, a connecting hole 115 is provided on the plate surface of the first cavity 111 facing the second cavity 112, and the connecting hole 115 can penetrate the first cavity 111 and the second cavity 112; one end of the sealed temperature probe 121 can be connected to the wiring port 130 located at the edge of the shell 110, and pass through the second cavity 112 and the connecting hole 115 in sequence, and be set in the first cavity 111 through the connecting hole 115 to be connected to the load end 1133 in the first cavity 111.

[0046] Optionally, in order to minimize the impact of the routing of the sealed temperature probe 121 on the movement process of the drive unit 114 or the contact unit 113, and to ensure that the switching switch 100 can be opened or closed well and stably, the relative distance between the connecting hole 115 and the contact unit 113 is greater than 15 mm, and the relative distance between the connecting hole 115 and the drive unit 114 is also greater than 15 mm.

[0047] In one possible implementation mode of the present application, the driving unit 114 includes a motor 1141 and a rotating shaft drivingly connected to the motor 1141. The rotating shaft passes through the first cavity 111 and the second cavity 112 and is directly connected to the moving contact 1131. The motor 1141 drives the moving contact 1131 to rotate via the rotating shaft so that the moving contact 1131 contacts or separates from the static contact assembly 1132.

[0048] For details, please refer to Figure 7 The driving unit 114 includes a motor 1141, which is arranged in the second cavity 112 and corresponds to the setting position of the moving contact 1131 in the first cavity 111; the motor 1141 is driven and connected to a rotating shaft, which extends from the second cavity 112 into the first cavity 111 to penetrate the first cavity 111 and the second cavity 112, and the end of the rotating shaft away from the motor 1141 is directly connected to the moving contact 1131. The motor 1141 directly drives the moving contact 1131 through the rotating shaft to make the moving contact 1131 contact or separate with the static contact assembly 1132, thereby realizing the closing or opening of the conversion switch 100, and the structure is simple.

[0049] In another possible implementation mode of the present application, the driving unit 114 includes a motor 1141, a rotating shaft and a driving gear 1142; the rotating shaft is drivingly connected to the motor 1141, and the driving gear 1142 is sleeved on the rotating shaft. A driven gear 1144 meshing with the driving gear 1142 is provided on the side of the moving contact 1131 away from the first cavity 111. The motor 1141 drives the driving gear 1142 and the driven gear 1144 to rotate via the rotating shaft, thereby driving the moving contact 1131 to rotate and contact or separate with the static contact assembly 1132.

[0050] Specifically, Figure 6 As shown, the drive unit 114 includes a motor 1141, which is disposed in the second cavity 112; the motor 1141 is connected to a rotating shaft, on which a driving gear 1142 is sleeved; the moving contact 1131 is partially inserted into the second cavity 112, and a driven gear 1144 is disposed on the side away from the first cavity 111, and the driven gear 1144 is meshed with the driving gear 1142. The motor 1141 can drive the driving gear 1142 to rotate via the rotating shaft, thereby driving the driven gear 1144 to rotate, so that the moving contact 1131 rotates and contacts or separates with the static contact assembly 1132, thereby realizing the closing or opening of the transfer switch 100.

[0051] Furthermore, if Figure 6 As shown, at least one transmission gear 1143 is further provided between the driving gear 1142 and the driven gear 1144. When there is one transmission gear 1143, the two sides of the transmission gear 1143 are respectively meshed with the driving gear 1142 and the driven gear 1144; when there are multiple transmission gears 1143, two adjacent transmission gears 1143 are meshed with each other, and the two transmission gears 1143 located at the two ends are respectively meshed with the driving gear 1142 and the driven gear 1144.

[0052] Specifically, a transmission gear 1143 is further provided between the driving gear 1142 and the driven gear 1144, and at least one transmission gear 1143 is provided. The provision of the transmission gear 1143 can better match the positional layout between the driving gear 1142 and the driven gear 1144, so as to match the driving gear 1142 and the driven gear 1144 with a better transmission relationship, thereby improving the stability and reliability of the opening or closing of the transfer switch 100.

[0053] When the transmission gear 1143 includes one, the two sides of the transmission gear 1143 are respectively meshed with the driving gear 1142 and the driven gear 1144, and the driving gear 1142 drives the driven gear 1144 to rotate through the transmission gear 1143, thereby driving the rotation of the moving contact 1131; when the transmission gear 1143 includes multiple transmission gears, two adjacent transmission gears 1143 are meshed with each other, and the two transmission gears 1143 located at the head and tail ends are respectively meshed with the driving gear 1142 and the driven gear 1144, so that the driving gear 1142 drives the driven gear 1144 to rotate through multiple transmission gears 1143 in sequence, thereby driving the rotation of the moving contact 1131.

[0054] like Figure 6As shown, the moving contact 1131 is arranged in the middle of the first cavity 111 and partially penetrates the second cavity 112; the part of the moving contact 1131 arranged in the second cavity 112 is sleeved with a driven gear 1144; a transmission gear 1143 is meshed on one side of the driven gear 1144, and a driving gear 1142 is meshed on the side of the transmission gear 1143 away from the driven gear 1144; the motor 1141 is arranged above the moving contact 1131, the static contact assembly 1132 and the load end 1133, and is also located between the static contact assembly 1132 and the load end 1133. The motor 1141 can drive the driving gear 1142 to rotate via the rotating shaft, and then drive the driven gear 1144 to rotate, so that the moving contact 1131 rotates and contacts or separates with the static contact assembly 1132, thereby realizing the closing or opening of the switching switch 100. The internal space layout of the switching switch 100 is reasonable, which greatly reduces the volume of the switching switch 100.

[0055] In one possible implementation of the present application, Figure 5 As shown, the driving unit 114 includes a driving rod 1145 and a driven rod 1146 rotatably connected to the driving rod 1145. The end of the driven rod 1146 facing away from the driving rod 1145 is fixedly connected to the moving contact 1131. The driving rod 1145 drives the moving contact 1131 to rotate via the driven rod 1146, so that the moving contact 1131 contacts or separates from the static contact assembly 1132.

[0056] Specifically, Figure 5 As shown, the driving unit 114 includes a driving rod 1145 and a driven rod 1146 arranged in the second cavity 112; the moving contact 1131 partially extends into the second cavity 112 to penetrate the first cavity 111 and the second cavity 112, so that the end of the driven rod 1146 can be fixedly connected to the moving contact 1131; the end of the driven rod 1146 facing away from the moving contact 1131 is hinged to the driving rod 1145, and the driving rod 1145 can drive the driven rod 1146 to move, thereby driving the rotation of the moving contact 1131, thereby realizing the contact or separation of the moving contact 1131 and the static contact assembly 1132.

[0057] Furthermore, if Figure 5 As shown, the driving unit 114 further includes a driver 1147, which is transmission-connected to one end of the driving rod 1145 away from the driven rod 1146, and the driver 1147 can drive the moving contact 1131 to rotate via the driving rod 1145 and the driven rod 1146. It should be noted that the driver 1147 can be a rotary driver 1147 or a direct-acting driver 1147, as long as the movement of the driving rod 1145 can be realized, thereby driving the movement of the driven rod 1146, and the present application does not impose any limitation on the specific arrangement form of the driver 1147.

[0058] The above description is only an optional embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

[0059] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

Claims

1. A transfer switch, characterized in that: The invention comprises a housing (110) and a temperature sampling module (120), wherein the housing (110) comprises a first cavity (111) and a second cavity (112), wherein a contact unit (113) is arranged in the first cavity (111), wherein the contact unit (113) comprises a moving contact (1131), a stationary contact assembly (1132) and a load end (1133) electrically connected to the moving contact (1131); wherein a driving unit (114) is arranged in the second cavity (112), wherein the driving unit (114) is capable of driving the moving contact (1131) to contact or separate from the stationary contact assembly (1132); and wherein the temperature sampling module (120) passes through the second cavity (112) and is arranged in the first cavity (111), and is respectively connected to the load end (1133) and a wiring port (130) to sample the temperature of the first cavity (111).

2. The transfer switch according to claim 1, characterized in that: The temperature sampling module (120) comprises a sealed temperature probe (121), one end of the sealed temperature probe (121) being attached to a load bus (1133a) of the load end (1133), and the other end of the sealed temperature probe (121) being connected to an external detection device via the connection port (130).

3. The transfer switch according to claim 2, characterized in that: The first cavity (111) and the second cavity (112) are separated from each other, and the first cavity (111) is provided with a connecting hole (115), and the connecting hole (115) passes through the first cavity (111) and the second cavity (112); one end of the sealed temperature probe (121) is connected to the wiring port (130), and the other end passes through the second cavity (112) through the connecting hole (115) and extends into the first cavity (111) to be connected to a load end (1133) in the first cavity (111).

4. The transfer switch according to claim 3, characterized in that: The relative distances between the connection hole (115), the contact unit (113) and the drive unit (114) are all greater than 15 mm.

5. The transfer switch according to claim 1, characterized in that: The driving unit (114) comprises a motor (1141) and a rotating shaft drivingly connected to the motor (1141); the rotating shaft passes through the first cavity (111) and the second cavity (112) and is directly connected to the moving contact (1131); the motor (1141) drives the moving contact (1131) to rotate via the rotating shaft, so that the moving contact (1131) contacts or separates from the stationary contact assembly (1132).

6. The transfer switch according to claim 1, characterized in that: The driving unit (114) comprises a motor (1141), a rotating shaft and a driving gear (1142); the rotating shaft is drivingly connected to the motor (1141), the driving gear (1142) is sleeved on the rotating shaft, and a driven gear (1144) meshing with the driving gear (1142) is provided on the side of the moving contact (1131) away from the first cavity (111); the motor (1141) drives the driving gear (1142) and the driven gear (1144) to rotate via the rotating shaft, thereby driving the moving contact (1131) to rotate and contact or separate with the static contact assembly (1132).

7. The transfer switch according to claim 6, characterized in that: At least one transmission gear (1143) is further provided between the driving gear (1142) and the driven gear (1144); when the transmission gear (1143) includes one, two sides of the transmission gear (1143) are respectively meshed with the driving gear (1142) and the driven gear (1144); when the transmission gear (1143) includes a plurality of transmission gears, two adjacent transmission gears (1143) are meshed with each other, and the two transmission gears (1143) located at the two ends are respectively meshed with the driving gear (1142) and the driven gear (1144).

8. The transfer switch according to claim 7, characterized in that: The moving contact (1131) is arranged in the middle of the first cavity (111) and partially penetrates the second cavity (112); the part of the moving contact (1131) arranged in the second cavity (112) is sleeved with the driven gear (1144); the transmission gear (1143) is meshedly arranged on one side of the driven gear (1144), and the driving gear (1142) is meshedly arranged on the side of the transmission gear (1143) away from the driven gear (1144); the motor (1141) is arranged above the moving contact (1131), the stationary contact assembly (1132) and the load end (1133), and is located between the stationary contact assembly (1132) and the load end (1133).

9. The transfer switch according to claim 1, characterized in that: The driving unit (114) comprises a driving rod (1145) and a driven rod (1146) rotatably connected to the driving rod (1145); one end of the driven rod (1146) away from the driving rod (1145) is fixedly connected to the moving contact (1131); the driving rod (1145) drives the moving contact (1131) to rotate via the driven rod (1146) so that the moving contact (1131) contacts or separates from the static contact assembly (1132); the driving unit (114) further comprises a driver (1147); the driver (1147 is transmission-connected to one end of the driving rod (1145) away from the driven rod (1146); the driver (1147) can drive the moving contact (1131) to rotate via the driving rod (1145) and the driven rod (1146).

10. The transfer switch according to any one of claims 1 to 9, characterized in that: The stationary contact assembly (1132) comprises at least two stationary contact plates (1132a), the moving contact (1131) contacts and cooperates with the at least two stationary contact plates (1132a) for circuit switching, and the at least two stationary contact plates (1132a) are distributed on opposite sides of the moving contact (1131).

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