Operating mechanism, rotary switch and power supply system

Abstract

An operating mechanism, a rotary switch and a power supply system relate to the field of low-voltage apparatuses. The operating mechanism comprises a driving assembly, a rotating shaft in transmission connection with the driving assembly and a mechanism upper cover capable of being locked or unlocked with the rotating shaft. The operating mechanism is provided with a first working position and a second working position which are distributed along the circumferential direction; when the operating mechanism is in the first working position, the mechanism upper cover locks the rotating shaft; the driving assembly rotates in the forward direction or the reverse direction and can act on the rotating shaft so that the rotating shaft can be unlocked relative to the mechanism upper cover, and the rotating shaft can be driven to rotate so that the rotating shaft can be switched to the second working position. The operating mechanism can realize switching of opening and closing states through forward rotation or reverse rotation, and switching modes are diversified.

Description

Technical Field

[0001] The utility model relates to the field of low-voltage electrical appliances, and in particular to an operating mechanism, a rotary switch and a power supply system. Background Art

[0002] As a switching device, the rotary switch is mainly used for "isolating power supply, switching operation, connecting and disconnecting small current circuits", and has no arc extinguishing function. When the rotary switch is in the open position, there is an insulation distance that meets the specified requirements and an obvious disconnection mark between the contacts; when it is in the closed position, it can carry the current under normal circuit conditions and the current under abnormal conditions (such as short circuit) within a specified time.

[0003] Among them, when a circuit fails, the rotary switch, as a key component of the disconnection function, can disconnect the circuit in the shortest time and protect other components, and has been widely used in various circuits. Usually, the rotary switch mostly drives the moving contact and the static contact assembly to open and close the switch through the operating mechanism. However, due to its structural design, the operating mechanism of the existing rotary switch can only rotate in one direction when the handle switches from one state to another, which cannot meet the diverse needs of users. Therefore, how to design a new operating mechanism to solve the problem of the relatively single switching mode of the opening and closing states in the prior art is important and meaningful. Utility Model Content

[0004] The utility model aims to provide an operating mechanism, a rotary switch and a power supply system, which can realize the switching of the opening and closing states through forward rotation or reverse rotation, and the switching modes are diversified.

[0005] The embodiment of the utility model is achieved as follows:

[0006] In one aspect of the utility model, an operating mechanism is provided, which includes a driving assembly, a rotating shaft connected to the driving assembly in a transmission manner, and a mechanism cover that can be locked or unlocked with the rotating shaft; the operating mechanism has a first working position and a second working position distributed along its circumference; when the operating mechanism is in the first working position, the mechanism cover locks the rotating shaft; the driving assembly can act on the rotating shaft in either forward or reverse rotation to unlock the rotating shaft relative to the mechanism cover, and drive the rotating shaft to rotate, so that the rotating shaft switches to the second working position. The operating mechanism can switch between the opening and closing states by either forward or reverse rotation, and the switching methods are diversified.

[0007] Optionally, a first limit platform is provided on the side of the mechanism cover close to the rotating shaft, a clamping portion is provided on the side of the rotating shaft close to the mechanism cover, and the drive assembly has a crimping portion; in the first working position and the second working position, the clamping portion and the first limit platform cooperate to circumferentially lock the mechanism cover and the rotating shaft; when the operating mechanism switches between the first working position and the second working position, the drive assembly is driven to rotate in a forward or reverse direction, and the crimping portion can act on the clamping portion to circumferentially unlock the rotating shaft and the mechanism cover.

[0008] Optionally, the driving assembly includes a lever and an elastic member, one end of the elastic member is connected to the lever and the other end is connected to the rotating shaft; the crimping portion is located on the lever; when the mechanism cover and the rotating shaft are circumferentially locked, the lever drives the elastic member to rotate and the elastic member stores energy; when the mechanism cover and the rotating shaft are circumferentially unlocked, the elastic member releases energy to drive the rotating shaft to rotate.

[0009] Optionally, the crimping parts include two, the two crimping parts are arranged on the lever at an interval, one end of the elastic member is fixedly connected to the lever, and the other end is fixedly connected to the rotating shaft.

[0010] Optionally, the first working station and the second working station both include an even number, the number of the first working station and the second working station is the same, and the first working station and the second working station are alternately arranged.

[0011] Another aspect of the utility model provides a rotary switch, which includes a plurality of switch units stacked along a first direction and the above-mentioned operating mechanism, the first direction is parallel to the arrangement direction of the drive assembly and the rotating shaft of the operating mechanism, each switch unit includes a shell, a moving contact assembly and a static contact assembly respectively arranged in the shell, the rotating shaft of the operating mechanism is transmission-connected to the moving contact assembly, and is used to drive the moving contact assembly to rotate to open or close the switch with the static contact assembly.

[0012] Optionally, the orthographic projections of the moving contact assemblies of any two adjacent switch units along the first direction overlap or substantially overlap.

[0013] Optionally, the moving contact assembly of at least one switch unit is arranged to cross the orthographic projections of the moving contact assemblies of other switch units along the first direction.

[0014] Optionally, the moving contact assembly includes a contact bracket and a moving contact connected to the contact bracket, the contact bracket is transmission-connected to the rotating shaft, and two opposite baffles are provided on the outer periphery of the contact bracket; when the switch unit is in the opening position, the baffle is away from one end of the contact bracket, the static contact, and the connecting line between one end of the moving contact forms a triangle.

[0015] Optionally, the orthographic projections of the static contact assemblies of any two adjacent switch units along the first direction overlap or substantially overlap.

[0016] Optionally, the static contact assembly includes a static contact, the static contact includes a contact portion and a wiring portion, the two contact portions respectively cooperate with the moving contact assembly, the contact portion extends in a straight line in a preset direction, the two contact portions are arranged opposite to each other in the preset direction, and the preset direction is perpendicular to the rotation axis of the moving contact assembly; the shell has a first side surface and a second side surface relative to each other, and the first side surface and the second side surface are respectively provided with wiring ports, and the two wiring ports respectively correspond to the two wiring portions; the wiring ports on two adjacent layers of the shell are arranged opposite to each other in the stacking direction.

[0017] Optionally, the shell has a third side surface between the first side surface and the second side surface, and two wiring channels are provided on the third side surface. The two wiring channels correspond to the wiring parts of the two static contacts respectively, and the wiring channels are used for the wiring terminals connected to the wiring parts to pass through.

[0018] Optionally, the two wiring channels are symmetrically distributed along a preset direction.

[0019] Optionally, a second baffle and a third baffle are provided on the side of the wiring port, and when at least two shells are stacked, the opening of the second baffle on one shell is blocked by the third baffle on the other shell to form an annular baffle surrounding the wiring port.

[0020] Optionally, two fourth baffles are respectively provided on the first side surface and the second side surface of the shell, the two fourth baffles are respectively located on two opposite sides of the second baffle, and the fourth baffle is spaced apart from the second baffle.

[0021] Another aspect of the present invention provides a power supply system, which includes the above-mentioned rotary switch, and at least one switch unit in the rotary switch is connected to the main circuit.

[0022] Another aspect of the utility model provides a power supply system, which includes the above-mentioned rotary switch, wherein the rotary switch includes at least an even number of switch units, and half of the even number of switch units are connected to the first power supply, and the other half are connected to the second power supply.

[0023] The beneficial effects of the utility model include:

[0024] The operating mechanism provided by the present application includes a driving component, a rotating shaft connected to the driving component by transmission, and a mechanism cover that can be locked or unlocked with the rotating shaft; the operating mechanism has a first working position and a second working position distributed along its circumference; when the operating mechanism is in the first working position, the mechanism cover locks the rotating shaft; the driving component can act on the rotating shaft in the forward or reverse rotation to unlock the rotating shaft relative to the mechanism cover, and drive the rotating shaft to rotate so that the rotating shaft switches to the second working position. The present application sets the driving component, the rotating shaft and the mechanism cover, so that in the first working position and the second working position, the rotating shaft can be locked by the mechanism cover, so that the operating mechanism is fixed in the corresponding state; when it is necessary to switch the state between the first working position and the second working position, the driving component can be rotated in the forward or reverse direction to act on the rotating shaft, so that the rotating shaft is unlocked relative to the mechanism cover, so that the rotating shaft can rotate under the drive of the driving component to achieve state switching. The above-mentioned setting method of the present application enables the operating mechanism to switch the state between the opening and closing positions by either forward rotation or reverse rotation. Compared with the prior art which can only achieve opening and closing by rotating in one direction, the switching method of the present application is diversified and can be suitable for different application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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.

[0026] Figure 1 One of the structural schematic diagrams of the rotary switch provided in the embodiment of the utility model;

[0027] Figure 2 The second structural diagram of the rotary switch provided by the embodiment of the utility model;

[0028] Figure 3 The third structural diagram of the rotary switch provided by the embodiment of the utility model;

[0029] Figure 4 A schematic diagram of the structure of a drive assembly and a rotating shaft provided in an embodiment of the utility model;

[0030] Figure 5 One of the structural schematic diagrams of the upper cover of the mechanism provided in the embodiment of the utility model;

[0031] Figure 6 The second structural diagram of the upper cover of the mechanism provided by the embodiment of the utility model;

[0032] Figure 7 A schematic diagram of the structure of a lever provided in an embodiment of the utility model;

[0033] Figure 8 A schematic diagram of the structure of the rotating shaft and the elastic member provided in the embodiment of the utility model;

[0034] Fig. 9 One of the structural schematic diagrams of the mechanism base provided in the embodiment of the utility model;

[0035] Fig.10 The second structural diagram of the mechanism base provided by the embodiment of the utility model;

[0036] Fig.11 One of the structural schematic diagrams of the drive assembly, the rotating shaft and the mechanism base provided in the embodiment of the utility model;

[0037] Fig.12 The second structural schematic diagram of the drive assembly, the rotating shaft and the mechanism base provided in the embodiment of the utility model;

[0038] Fig.13 One of the structural schematic diagrams of the rotating shaft provided in the embodiment of the utility model;

[0039] Fig.14 The second structural schematic diagram of the rotating shaft provided by the embodiment of the utility model;

[0040] Fig.15 One of the structural schematic diagrams of the switch unit provided in the embodiment of the utility model;

[0041] Fig.16 A second structural schematic diagram of a switch unit provided in an embodiment of the utility model;

[0042] Fig.17 The third structural diagram of the switch unit provided in the embodiment of the utility model;

[0043] Fig.18 A fourth structural diagram of a switch unit provided in an embodiment of the utility model;

[0044] Fig.19 A connection diagram of a power supply system provided in an embodiment of the present application.

[0045] Icons: 100-rotary switch; 10-operating mechanism; 11-handle; 10A-driving assembly; 12-mechanism cover; 121-receiving groove; 122-first limit platform; 123-through groove; 13-lever; 13A-first body; 131-bending part; 132-crimping part; 133-rotating axis; 14-rotating axis; 14A-clamping part; 141A-first cantilever beam; 141B-second cantilever beam; 142-opening; 143-matching hole; 15-mechanism base; 150-receiving groove; 151-through hole; 152-receiving chamber; 16-elastic member; a-positive direction; b-reverse direction; c-first direction; 20-switch unit; 20a-housing; 20a1-second direction A side surface; 20a2-a second side surface; 20a3-a third side surface; 21-moving contact assembly; 210-contact bracket; 2101-matching structure; 211-moving contact; 212-spring; 213-baffle; 22-stationary contact assembly; 221-stationary contact; 2211-contact portion; 2212-wiring portion; 23-wiring port; 24-wiring channel; 25-a second baffle; 26-a third baffle; 27-a fourth baffle; 28-wiring terminal; d-preset direction; e-rotation axis of the moving contact assembly; P1-a first projection; P10-a second projection; P2-a third projection; P20-a fourth projection; 31-power supply; 32-power conversion switch; 33-control unit. DETAILED DESCRIPTION

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] Please refer to Figures 1 to 4 This embodiment provides an operating mechanism 10, which includes a drive assembly 10A, a rotating shaft 14 connected to the drive assembly 10A in transmission, and a mechanism cover 12 that can be locked or unlocked with the rotating shaft 14; the operating mechanism 10 has a first working position and a second working position distributed along its circumference; when the operating mechanism 10 is in the first working position, the mechanism cover 12 locks the rotating shaft 14; the drive assembly 10A can act on the rotating shaft 14 when rotating in the forward direction a or the reverse direction b, so that the rotating shaft 14 is unlocked relative to the mechanism cover 12, and the rotating shaft 14 is driven to rotate, so that the rotating shaft 14 is switched to the second working position. The operating mechanism 10 can switch between the opening and closing states by rotating in the forward direction a or the reverse direction b, and the switching methods are diversified.

[0053] It should be noted that the driving assembly 10A is used to drive the rotating shaft 14 to rotate, and its specific structural form is not limited in this application. The driving assembly 10A can be driven by the handle 11, that is, the handle 11 drives the driving assembly 10A to move, and the driving assembly 10A drives the rotating shaft 14 to rotate.

[0054] On the one hand, the rotating shaft 14 is transmission-connected with the driving assembly 10A and driven by the driving assembly 10A, and on the other hand, is used to transmission-connect with the moving contact assembly 21 of the rotary switch 100 to drive the moving contact assembly 21 to rotate, so that the moving contact assembly 21 and the stationary contact assembly 22 of the rotary switch 100 are opened or closed.

[0055] Please note that, please refer to Fig.14 and Fig.15 As shown, a mating hole 143 may be provided on one side of the rotating shaft 14 close to the moving contact assembly 21, and the moving contact assembly 21 may be provided with a mating structure 2101 mating with the mating hole 143, and the mating structure 2101 mating with the mating hole 143, so that the rotating shaft 14 can drive the moving contact assembly 21 by mating with the mating structure 2101 of the moving contact assembly 21 through the mating hole 143.

[0056] In this embodiment, the operating mechanism 10 has a first working position and a second working position, wherein the first working position and the second working position are distributed along the circumference of the operating mechanism 10. The circumference of the operating mechanism 10 can also be considered as the rotation direction of the drive assembly 10A, that is, the first working position and the second working position are distributed along the rotation direction of the drive assembly 10A.

[0057] The first working position represents a working state of the operating mechanism 10, and the second working position represents another working state of the operating mechanism 10. In this embodiment, one of the first working position and the second working position is an open position and the other is a closed position. For example, when the first working position is an open position, the second working position is a closed position; conversely, when the first working position is a closed position, the second working position is an open position.

[0058] In addition, the rotating shaft 14 can also cooperate with or disengage from the mechanism upper cover 12. When the rotating shaft 14 cooperates with the mechanism upper cover 12, the rotating shaft 14 is locked by the mechanism upper cover 12 and cannot rotate; when the rotating shaft 14 disengages from the mechanism upper cover 12, the rotating shaft 14 is unlocked relative to the mechanism upper cover 12 and can rotate.

[0059] It should be noted that, in this embodiment, when the operating mechanism 10 is in the first working position and the second working position, the rotating shaft 14 is locked by the mechanism cover 12, and the operating mechanism 10 can be fixed in the corresponding position; when the operating mechanism 10 switches between the first working position and the second working position, the driving component 10A can act on the rotating shaft 14 to unlock the rotating shaft 14 and the mechanism cover 12.

[0060] In this embodiment, when the operating mechanism 10 is in the first working position, the driving component 10A drives the rotating shaft 14 to rotate in the forward direction a or the reverse direction b, and the rotating shaft 14 can switch the operating mechanism 10 to the second working position; when the operating mechanism 10 is in the second working position, the driving component 10A drives the rotating shaft 14 to rotate in the forward direction a or the reverse direction b, and the rotating shaft 14 can switch the operating mechanism 10 to the first working position. That is to say, in this embodiment, the switching between the first working position and the second working position can be achieved by driving the rotating shaft 14 to rotate in the forward direction a, or by driving the rotating shaft 14 in the reverse direction b. In this way, the present application can realize bidirectional driving of the operating mechanism 10 when switching the state, and the state switching mode of the operating mechanism 10 is diversified, which can be applied to a variety of application scenarios.

[0061] To summarize, the operating mechanism 10 provided in the present application includes a drive component 10A, a rotating shaft 14 transmission-connected to the drive component 10A, and a mechanism cover 12 capable of locking or unlocking the rotating shaft 14; the operating mechanism 10 has a first working position and a second working position distributed along its circumference; when the operating mechanism 10 is in the first working position, the mechanism cover 12 locks the rotating shaft 14; the drive component 10A can act on the rotating shaft 14 when rotating in the forward direction a or the reverse direction b to unlock the rotating shaft 14 relative to the mechanism cover 12, and drive the rotating shaft 14 to rotate so that the rotating shaft 14 switches to the second working position. The present application sets a drive assembly 10A, a rotating shaft 14 and a mechanism cover 12, so that in the first working position and the second working position, the rotating shaft 14 can be locked by the mechanism cover 12, so that the operating mechanism 10 is fixed in the corresponding state; when it is necessary to switch the state between the first working position and the second working position, the drive assembly 10A can be rotated in the forward direction a or the reverse direction b to act on the rotating shaft 14, so that the rotating shaft 14 is unlocked relative to the mechanism cover 12, so that the rotating shaft 14 can be rotated under the drive assembly 10A to achieve state switching. The above-mentioned setting method of the present application can enable the operating mechanism 10 to switch the state in the opening and closing position, which can be achieved by rotating in the forward direction a or by rotating in the reverse direction b. Compared with the prior art that can only rotate in one direction to achieve opening and closing, the switching method of the present application is diversified and can be applied to different application scenarios.

[0062] Please refer to Figure 3 , Figure 4 and Figure 6Optionally, the mechanism upper cover 12 has a first limit platform 122 on one side close to the rotating shaft 14, the rotating shaft 14 has a clamping portion 14A on one side close to the mechanism upper cover 12, and the driving component 10A has a crimping portion 132; when in the first working position and the second working position, the clamping portion 14A and the first limit platform 122 cooperate to circumferentially lock the mechanism upper cover 12 and the rotating shaft 14; when the operating mechanism 10 switches between the first working position and the second working position, the driving component 10A is driven to rotate in the forward direction a or the reverse direction b, and the crimping portion 132 can act on the clamping portion 14A to circumferentially unlock the rotating shaft 14 and the mechanism upper cover 12.

[0063] The first limit platform 122 provided on the mechanism upper cover 12 and the clamping portion 14A provided on the rotating shaft 14 can cooperate or release cooperation, thereby realizing locking or unlocking of the mechanism upper cover 12 .

[0064] In this embodiment, please refer to Figure 5 and Figure 6 The mechanism upper cover 12 is also provided with a through slot 123, which is used for the end of the driving component 10A away from the rotating shaft 14 to pass through. It should be noted that the end of the driving component 10A extending away from the rotating shaft 14 through the through slot 123 can be connected to the handle 11, so that the driving component 10A can be driven to rotate by the handle 11.

[0065] In addition, a receiving groove 121 connected to the through groove 123 can be further provided on the side of the mechanism upper cover 12 facing the rotating shaft 14. The receiving groove 121 is located between the through groove 123 and the rotating shaft 14. At least a portion of the driving component 10A can be received in the receiving groove 121, and another portion can pass through the through groove 123 and extend out of the through groove 123.

[0066] It should be noted that when the mechanism upper cover 12 and the rotating shaft 14 are locked, the first limit platform 122 is clamped in the clamping portion 14A, so that the rotating shaft 14 cannot rotate due to the blocking effect of the first limit platform 122. In other words, in the first working position and the second working position, the first limit platform 122 is clamped in the clamping portion 14A.

[0067] The crimping portion 132 provided on the driving component 10A can act on the clamping portion 14A. In the present embodiment, when the driving component 10A is driven to rotate in the forward direction a or the reverse direction b, the crimping portion 132 can act on the clamping portion 14A, thereby unlocking the clamping portion 14A and the first limit platform 122. At this time, the rotating shaft 14 loses its restriction, and the rotating shaft 14 can start to rotate driven by the driving component 10A, thereby realizing the state switching.

[0068] Please refer to Figure 7 and Figure 8Optionally, the driving assembly 10A includes a lever 13 and an elastic member 16, one end of the elastic member 16 is connected to the lever 13, and the other end is connected to the rotating shaft 14; the crimping portion 132 is located on the lever 13; when the mechanism upper cover 12 and the rotating shaft 14 are circumferentially locked, the lever 13 drives the elastic member 16 to rotate, and the elastic member 16 stores energy; when the mechanism upper cover 12 and the rotating shaft 14 are circumferentially unlocked, the elastic member 16 releases energy to drive the rotating shaft 14 to rotate.

[0069] That is to say, when the operating mechanism 10 is in the first working position or the second working position, the mechanism cover 12 and the rotating shaft 14 are both locked; when the operating mechanism 10 switches between the first working position and the second working position, the driving lever 13 rotates, and the elastic member 16 rotates accordingly, and the elastic member 16 stores energy. When the crimping portion 132 on the lever 13 acts on the clamping portion 14A on the rotating shaft 14, the rotating shaft 14 and the mechanism cover 12 are unlocked, and at this time, the elastic member 16 can release energy to drive the rotating shaft 14 to rotate, thereby realizing state switching.

[0070] In this embodiment, the lever 13 includes a first body 13A and a bending portion 131 connected to the first body 13A and bent toward the rotation axis 14, and a crimping portion 132 is provided on the first body 13A; the bending portion 131 is used to drive the elastic member 16 to store energy. That is, when the lever 13 rotates, the elastic member 16 is driven to store energy by the bending portion 131 provided on the lever 13. In this embodiment, the elastic member 16 is a torsion spring.

[0071] Please refer to Figure 4 and Figure 7 The lever 13 further includes a rotating shaft 133 connected to the first body 13A. The rotating shaft 133 is located on the side of the first body 13A away from the rotating shaft 14 and is used to drive the first body 13A to rotate. That is, the first body 13A can be driven to rotate by the rotating shaft 133. It should be noted that the rotating shaft 133 can be connected to the handle 11. In this case, the rotating shaft 133 can pass through the through slot 123 of the mechanism upper cover 12 and be connected to the handle 11.

[0072] Also, please refer to Fig.13 and Fig.14 The above-mentioned clamping portion 14A may include a first cantilever beam 141A and a second cantilever beam 141B located on the rotating shaft 14, and an opening 142 is provided between the first cantilever beam 141A and the second cantilever beam 141B. When in the working position, the first limit platform 122 is clamped between the first cantilever beam 141A and the second cantilever beam 141B.

[0073] In this way, when the operating mechanism 10 is in the first working position or the second working position, the first limit platform 122 is clamped at the opening 142 between the first cantilever beam 141A and the second cantilever beam 141B. At this time, when the driving lever 13 rotates in the positive direction a or the reverse direction b, the crimping portion 132 can act on one of the cantilever beams (the positive direction a can act on the second cantilever beam 141B, and the reverse direction b can act on the first cantilever beam 141A), so that the rotating shaft 14 and the mechanism upper cover 12 are unlocked. At this time, the rotating shaft 14 can rotate under the energy release of the elastic member 16 (the elastic member 16 is driven to store energy when the lever 13 rotates), thereby realizing state switching.

[0074] Optionally, the crimping part 132 includes two, and the two crimping parts 132 are arranged on the lever 13 at intervals, and one end of the elastic member 16 is fixedly connected to the lever 13, and the other end is fixedly connected to the rotating shaft 14. In this way, when the driving component 10A rotates in the forward direction a, one crimping part 132 can act on the second cantilever beam 141B; when the driving component 10A rotates in the reverse direction b, the other crimping part 132 can act on the first cantilever beam 141A, so that the movement stroke of the driving component 10A is shorter when the state is switched, and the switching speed is faster.

[0075] In this embodiment, optionally, both the first working station and the second working station include an even number, the number of the first working station and the second working station is the same, and the first working station and the second working station are alternately arranged.

[0076] That is to say, in this embodiment, the first working position and the second working position both appear in pairs, and the number of the first working position and the second working position is the same. For example, the first working position includes two and the second working position includes two; or, the first working position includes four and the second working position includes four; or, the first working position includes four and the second working position includes four. In this embodiment, the structural examples in the accompanying drawings are all shown as examples of the first working position and the second working position each including two, but it should be understood that the illustrations are only examples and are not limitations of the present application.

[0077] It should be noted that the number of the first working positions and the second working positions should correspond to the number of the first limiting platforms 122. That is, if the first working positions and the second working positions each include two, then the first limiting platforms 122 include four. Figure 6 shown.

[0078] Also, please refer to Figures 9 to 12 The present application may further include a mechanism base 15, the mechanism base 15 is provided with a receiving groove 150, a receiving cavity 152, and a through hole 151 provided between the receiving groove 150 and the receiving cavity 152, the through hole 151 communicating with the receiving groove 150 and the receiving cavity 152 (such as Fig. 9 and Fig.10shown).

[0079] The rotating shaft 14 may be disposed in the accommodating groove 150, and at least a portion of the moving contact assembly 21 may be disposed in the accommodating cavity 152. Fig.11 and Fig.12 shown.

[0080] Please refer to Figure 1 , Figure 2 and Fig.15 As shown, another aspect of the utility model provides a rotary switch 100, which includes a plurality of switch units 20 stacked along a first direction c and the above-mentioned operating mechanism 10, the first direction c is parallel to the arrangement direction of the drive assembly 10A of the operating mechanism 10 and the rotating shaft 14, each switch unit 20 includes a shell 20a, a moving contact assembly 21 and a stationary contact assembly 22 respectively arranged in the shell 20a, the rotating shaft 14 of the operating mechanism 10 is transmission-connected to the moving contact assembly 21, and is used to drive the moving contact assembly 21 to rotate to open or close the switch with the stationary contact assembly 22.

[0081] The specific structure and technical effects of the operating mechanism 10 have been described in detail in the previous text, so they will not be repeated here in this application.

[0082] The switch unit 20 includes a plurality of switch units 20, which are stacked along the first direction c, wherein each switch unit 20 includes a moving contact assembly 21, a stationary contact assembly 22 and a housing 20a. The moving contact assembly 21 is connected to the rotating shaft 14 of the operating mechanism 10, and the rotating shaft 14 is used to drive the moving contact assembly 21 to rotate to open or close the switch with the stationary contact assembly 22.

[0083] In addition, if Fig.16 and Fig.17 As shown, the switch unit 20 may further include a spring sheet 212 , which is connected between the contact support 210 and the moving contact 211 , and is used to provide a force for the moving contact 211 to press the stationary contact assembly 22 .

[0084] It should be noted that, in this embodiment, the orthographic projections of the static contact assemblies 22 of any two adjacent switch units 20 along the first direction c overlap or substantially overlap.

[0085] like Fig.15 As shown, when the projections of the static contact assemblies 22 of the switch units 20 of two adjacent layers in the first direction c completely overlap, a first projection P1 of a solid line is formed; Fig.18 As shown, when the projections of the static contact assemblies 22 of the switch units 20 of two adjacent layers in the first direction c are slightly deviated and basically overlap due to installation errors, a second projection P10 where the solid line and the dotted line overlap is formed.

[0086] The projections of the static contact assemblies 22 of the switch units 20 of each layer may have different deviations, and the projection deviations of the static contact assemblies 22 on the left and right sides of the switch units 20 of the same layer may also be different.

[0087] In this embodiment, the configuration forms of the moving contact assemblies 21 of the plurality of switch units 20 may include at least the following two types.

[0088] In the first possible setting, such as Fig.17 As shown, optionally, the orthographic projections of the moving contact assemblies 21 of any two adjacent switch units 20 along the first direction c overlap or substantially overlap.

[0089] That is to say, in this setting, the moving contact assembly 21 of each switch unit 20 is opened or closed synchronously. When the moving contact assembly 21 of one switch unit 20 is closed with its corresponding static contact assembly 22, the moving contact assembly 21 of other switch units 20 can also be closed with its corresponding static contact assembly 22; conversely, when the moving contact assembly 21 of one switch unit 20 is opened with its corresponding static contact assembly 22, the moving contact assembly 21 of other switch units 20 can also be opened with its corresponding static contact assembly 22.

[0090] It should be noted that if Fig.15 As shown, when the projections of the moving contact assemblies 21 of the switch units 20 of two adjacent layers in the first direction c completely overlap, a third projection P2 of a solid line is formed; Fig.18 As shown, when the projections of the moving contact assemblies 21 of the switch units 20 of two adjacent layers in the first direction c are slightly deviated and basically overlap due to installation errors or the like, a fourth projection P20 in which the solid line and the dotted line overlap is formed.

[0091] The projections of the moving contact assemblies 21 of the switch units 20 at each layer may have deviations.

[0092] In the second possible setting, such as Fig.16 As shown, optionally, the moving contact assembly 21 of at least one switch unit 20 is arranged to cross with the orthographic projections of the moving contact assemblies 21 of other switch units 20 along the first direction c.

[0093] It should be noted that the above-mentioned crossing state can be a vertical state or a nearly vertical state, and this application does not impose any specific limitation.

[0094] When the projections of the moving contact assemblies 21 of the switch units 20 of two adjacent layers in the first direction c are completely vertical, the projection profiles of the moving contact assemblies 21 of the switch units 20 of two adjacent layers in the first direction c are completely vertical; when the projections of the moving contact assemblies 21 of the switch units 20 of two adjacent layers in the first direction c are slightly deviated and basically vertical due to installation errors, the projection profiles of the moving contact assemblies 21 of the switch units 20 of two adjacent layers in the first direction c are approximately vertical, with only a slight angle deviation. The projections of the moving contact assemblies 21 of the switch units 20 of each layer may have deviations.

[0095] In this arrangement, there is at least one switch unit 20, whose moving contact assembly 21 and the orthographic projections of other moving contact assemblies 21 in the first direction c are intersecting. That is to say, when the moving contact assemblies 21 of other switch units 20 and their corresponding static contact assemblies 22 are closed, the moving contact assembly 21 of at least one switch unit 20 and its corresponding static contact assembly 22 are open.

[0096] Exemplarily, it is assumed that there are five switch units 20, among which the orthographic projection of the moving contact assembly 21 of at least one switch unit 20 in the first direction c is crossed with the other moving contact assemblies 21. For example, it can be that the orthographic projections of the moving contact assemblies 21 of four switch units 20 in the first direction c are overlapped or substantially overlapped, and the moving contact assembly 21 of the remaining one switch unit 20 is crossed with the moving contact assemblies 21 of the other four switch units 20; for another example, it can also be that the orthographic projections of the moving contact assemblies 21 of three switch units 20 in the first direction c are overlapped or substantially overlapped, and the moving contact assemblies 21 of the remaining two switch units 20 are crossed with the moving contact assemblies 21 of the other three switch units 20. In other words, the present application does not limit the specific number and quantity distribution relationship of the switch units 20 in which the moving contact assemblies 21 are cross-arranged in a plurality of switch units 20, and those skilled in the art can choose according to actual needs.

[0097] Please refer to Fig.16 and Fig.17 Optionally, the moving contact assembly 21 includes a contact bracket 210 and a moving contact 211 connected to the contact bracket 210, the contact bracket 210 is transmission-connected to the rotating shaft 14, and two opposite baffles 213 are provided on the periphery of the contact bracket 210; when the switch unit 20 is in the opening position, the baffle 213 is away from one end of the contact bracket 210, the static contact 221, and the connecting line of one end of the moving contact 211 form a triangle.

[0098] It should be noted that, since the sum of the two sides of the triangle is greater than the third side, compared with the structure without the baffle 213, the baffle 213 provided in the present application will increase the movement length of the arc, thereby increasing the creepage distance and being more conducive to the extinguishing of the arc.

[0099] The contact support 210 may further be provided with a matching structure 2101, and the rotating shaft 14 is provided with a matching hole 143 that matches with the matching structure 2101. Fig.14 and Fig.17 shown.

[0100] In this embodiment, the baffles 213 disposed on the periphery of the contact support 210 include two baffles 213, which are disposed opposite to each other. Fig.15 The present application sets a baffle 213, and when the switch unit 20 is in the off position, the baffle 213 is away from one end of the contact bracket 210, the static contact 221, and the connecting line of one end of the moving contact 211 form a triangle, so that the creepage distance can be increased and the breaking performance of the rotary switch 100 can be improved.

[0101] Please refer to Figures 15 to 17 Optionally, the orthographic projections of the static contact assemblies 22 of any two adjacent switch units 20 along the first direction c overlap or substantially overlap. In other words, the orthographic projections of the static contact assemblies 22 of all switch units 20 in the first direction c overlap or substantially overlap. The above-mentioned substantial overlap means approximate overlap.

[0102] Optionally, the static contact assembly 22 includes a static contact 221, the static contact 221 includes a contact portion 2211 and a wiring portion 2212, the two contact portions 2211 respectively cooperate with the moving contact assembly 21, the contact portion 2211 extends in a straight line in a preset direction d, the two contact portions 2211 are arranged opposite to each other in the preset direction d, and the preset direction d is perpendicular to the rotation axis e of the moving contact assembly; the shell 20a has a first side surface 20a1 and a second side surface 20a2 relative to each other, and the first side surface 20a1 and the second side surface 20a2 are respectively provided with wiring ports 23, and the two wiring ports 23 respectively correspond to the two wiring portions 2212; the wiring ports 23 on two adjacent layers of the shell 20a are arranged opposite to each other in the stacking direction.

[0103] It should be noted that the stacking direction is parallel to the first direction c mentioned above.

[0104] The stationary contact 221 includes a contact portion 2211 and a wiring portion 2212, wherein the contact portions 2211 on the two stationary contacts 221 respectively cooperate with the two ends of the moving contact assembly 21 (specifically the moving contact 211), and the wiring portion 2212 is used to electrically connect to an external conductor. The housing 20a is divided into a preset direction d, which is perpendicular to the rotation axis e of the moving contact assembly, and is preferably the length direction of the housing 20a. The contact portion 2211 extends in a straight line in the preset direction d, and the contact portions 2211 of the two stationary contacts 221 are arranged opposite to each other in the preset direction d, please refer to Fig.16 shown.

[0105] The housing 20a has a first side surface 20a1 and a second side surface 20a2 opposite to each other. The first side surface 20a1 and the second side surface 20a2 are respectively provided with a wiring port 23. The wiring port 23 is connected to the interior of the housing 20a. The two wiring ports 23 correspond to the wiring portions 2212 of the two stationary contacts 221. The external conductor passes through the wiring port 23 and extends into the interior of the housing 20a, and is electrically connected to the wiring portion 2212 of the stationary contact 221. When at least two housings 20a are stacked, the wiring ports 23 on the two adjacent layers of housings 20a are arranged opposite to each other in the stacking direction. Please refer to Figure 2 shown.

[0106] It should be noted that the aforementioned facing setting includes two situations, one is completely facing, and the other is that most of the area is facing, with only a small part of the area slightly offset. The slight offset in a small part of the area is usually caused by processing errors.

[0107] In the switch unit 20, the contact portions 2211 of the two static contacts 221 in the housing 20a extend along the preset direction d and are arranged opposite to each other in the preset direction d. After the housings 20a are stacked, the wiring ports 23 on the two adjacent layers of housings 20a are arranged opposite to each other in the stacking direction. In this way, it is convenient for customers to locate and connect the wiring, and it can also reduce the production cost.

[0108] Optionally, two opposite wiring ports 23 on the same housing 20a are arranged opposite to each other along a preset direction d, so that the structure of the housing 20a is more symmetrical, further facilitating user positioning and wiring.

[0109] Optionally, the shell 20a has a third side 20a3 located between the first side 20a1 and the second side 20a2, and two wiring channels 24 are provided on the third side 20a3. The two wiring channels 24 correspond to the wiring parts 2212 of the two static contacts 221 respectively, and the wiring channels 24 are used for the wiring terminals 28 connected to the wiring parts 2212 to pass through.

[0110] During wiring, the external conductor extends from the wiring port 23 into the side of the wiring portion 2212 of the static contact 221 in the housing 20a, and the wiring terminal 28 extends from the wiring channel 24 into the housing 20a to fix the external conductor to the wiring portion 2212.

[0111] Optionally, the two wiring channels 24 are symmetrically distributed along the central plane of the length direction of the housing 20a. That is, the two wiring channels 24 on the same housing 20a are spaced apart, and the distance between one wiring channel 24 and the first side 20a1 is equal to the distance between the other wiring channel 24 and the second side 20a2.

[0112] When the housings 20a are stacked, the wiring ports 23 on two adjacent layers of housings 20a are arranged opposite to each other, which results in a smaller creepage distance of the static contact 221. In order to increase the creepage distance of the static contact 221, optionally, a second baffle 25 and a third baffle 26 are provided on the side of the wiring port 23, and when at least two housings 20a are stacked, the opening 142 of the second baffle 25 on one housing 20a is blocked by the third baffle 26 on the other housing 20a, so as to form an annular baffle surrounding the wiring port 23.

[0113] For example, the second baffle 25 is U-shaped, the opening 142 of the second baffle 25 faces upward and is located on the upper surface of the housing 20 a , and the third baffle 26 is in a planar plate shape and is located below the second baffle 25 .

[0114] Optionally, two fourth baffles 27 are respectively disposed on the first side surface 20a1 and the second side surface 20a2 of the shell 20a. The two fourth baffles 27 are respectively located on two opposite sides of the second baffle 25. The fourth baffle 27 is spaced apart from the second baffle 25.

[0115] In this way, an isolation space is also formed between the fourth baffle plate 27 and the second baffle plate 25. Preferably, the second baffle plate 25, the third baffle plate 26 and the fourth baffle plate 27 have the same size in the preset direction d, so that the end surface of the housing 20a is flat.

[0116] Another aspect of the present invention provides a power supply system, which includes the above-mentioned rotary switch 100, and at least one switch unit 20 in the rotary switch 100 is connected to a main circuit.

[0117] The rotary switch 100 includes a plurality of switch units 20 stacked along a first direction c and the operating mechanism 10 mentioned above. The first direction c is parallel to the arrangement direction of the drive assembly 10A of the operating mechanism 10 and the rotating shaft 14. Each switch unit 20 includes a housing 20a, a moving contact assembly 21 and a stationary contact assembly 22 respectively arranged in the housing 20a. The rotating shaft 14 of the operating mechanism 10 is transmission-connected to the moving contact assembly 21, and is used to drive the moving contact assembly 21 to rotate so as to open or close the switch with the stationary contact assembly 22. It should be noted that the specific structures of the operating mechanism 10 and the switch unit 20 of the rotary switch 100 can be referred to the above description, and will not be repeated here.

[0118] In addition, in the rotary switch 100, the orthographic projections of the moving contact assemblies 21 of any two adjacent switch units 20 along the first direction c are overlapped or substantially overlapped. At this time, at least one switch unit 20 in the power supply system is used as an isolating switch to connect the main circuit, and the other switch units 20 can be used as isolating switches or ordinary switches to connect other circuits.

[0119] In another aspect of the present invention, a power supply system is provided, which includes the above-mentioned rotary switch 100, wherein the rotary switch 100 includes at least an even number of switch units 20, and half of the even number of switch units 20 are connected to the first power supply, and the other half are connected to the second power supply.

[0120] The rotary switch 100 included in the power supply system also includes a plurality of switch units 20 stacked along a first direction c and the operating mechanism 10 mentioned above. The first direction c is parallel to the arrangement direction of the drive assembly 10A of the operating mechanism 10 and the rotating shaft 14. Each switch unit 20 includes a housing 20a, a moving contact assembly 21 and a stationary contact assembly 22 respectively arranged in the housing 20a. The rotating shaft 14 of the operating mechanism 10 is transmission-connected with the moving contact assembly 21, and is used to drive the moving contact assembly 21 to rotate so as to open or close the switch with the stationary contact assembly 22. It should be noted that the specific structures of the operating mechanism 10 and the switch unit 20 of the rotary switch 100 can be referred to the above description, and will not be repeated here.

[0121] Compared with the above power supply system, the power supply system is different in that half of the even-numbered switch units 20 in the rotary switch 100 of the power supply system are connected to the first power source, and the other half are connected to the second power source.

[0122] It should be noted that the rotary switch 100 of the power supply system includes at least an even number of switch units 20, that is, the number of switch units 20 in the rotary switch 100 is greater than or equal to 2. And half of the even number of rotary switches 100 in the rotary switch 100 are connected to the first power source, and the other half are connected to the second power source.

[0123] For example, the rotary switch 100 includes two switch units 20, one of which is connected to the first power source and the other is connected to the second power source. In this case, the rotary switch 100 can be used as a dual power switch;

[0124] For another example, the rotary switch 100 includes three switch units 20, wherein one of the two switch units 20 is connected to the first power source and the other is connected to the second power source, and is used as a dual power switch; the remaining switch unit 20 can be used as an isolating switch or a common switch to connect other circuits;

[0125] For another example, the rotary switch 100 includes four switch units 20, wherein two switch units 20 of the four switch units 20 are connected to the first power source and the other two switch units 20 are connected to the second power source, and are used as a dual power switch;

[0126] For example, the rotary switch 100 includes five switch units 20, wherein two of the four switch units 20 are connected to a first power supply and the other two switch units 20 are connected to a second power supply, and are used as a dual power switch; the remaining switch unit 20 can be used as an isolating switch or a common switch to connect other circuits.

[0127] In addition, please refer to Fig.19 As shown, the power supply system also includes a control unit 33, a power supply 31, a power conversion switch 32 and the above-mentioned rotary switch 100, the rotary switch 100 is electrically connected between the power supply 31 and the power conversion switch 32, and the control unit 33 is used to send relevant signals of the power supply 31 or the power conversion switch 32 to the rotary switch 100.

[0128] The rotary switch 100 has at least one layer of switch units 20 connected to the first loop, and other layers of switch units 20 connected to other loops other than the first loop.

[0129] When the rotary switch 100 includes at least an even number of switch units 20 , at this time, half of the even number of switch units 20 of the rotary switch 100 are connected to the first power source, and the other half are connected to the second power source.

[0130] For example, the first power source is city electricity, and the second power source is green electricity; or, the first power source is wind power, and the second power source is photovoltaic power.

[0131] 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.

[0132] 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. An operating mechanism (10), characterized in that: The operating mechanism (10) comprises a driving assembly (10A), a rotating shaft (14) drivingly connected to the driving assembly (10A), and a mechanism upper cover (12) capable of being locked or unlocked with the rotating shaft (14); the operating mechanism (10) has a first working position and a second working position distributed along its circumference; When the operating mechanism (10) is in the first working position, the mechanism upper cover (12) locks the rotating shaft (14); the driving component (10A) can act on the rotating shaft (14) by rotating in the forward direction (a) or the reverse direction (b) to unlock the rotating shaft (14) relative to the mechanism upper cover (12), and drive the rotating shaft (14) to rotate so that the rotating shaft (14) switches to the second working position.

2. The operating mechanism (10) according to claim 1, characterized in that: The side of the mechanism upper cover (12) close to the rotating shaft (14) has a first limiting platform (122), the side of the rotating shaft (14) close to the mechanism upper cover (12) has a clamping portion (14A), and the driving component (10A) has a crimping portion (132); When in the first working position and the second working position, the clamping portion (14A) and the first limiting platform (122) cooperate to circumferentially lock the mechanism cover (12) and the rotating shaft (14); when the operating mechanism (10) switches between the first working position and the second working position, the driving component (10A) is driven to rotate in the forward direction (a) or the reverse direction (b), and the crimping portion (132) can act on the clamping portion (14A) to circumferentially unlock the rotating shaft (14) and the mechanism cover (12).

3. The operating mechanism (10) according to claim 1 or 2, characterized in that: The first working positions and the second working positions both include an even number, the number of the first working positions and the number of the second working positions are the same, and the first working positions and the second working positions are alternately arranged.

4. A rotary switch (100), characterized in that: It comprises a plurality of switch units (20) stacked along a first direction (c) and an operating mechanism (10) as claimed in any one of claims 1 to 3, wherein the first direction (c) is parallel to the arrangement direction of the drive assembly (10A) of the operating mechanism (10) and the rotating shaft (14), and each of the switch units (20) comprises a housing (20a), a moving contact assembly (21) respectively arranged in the housing (20a), and two groups of stationary contact assemblies (22) located on opposite sides of the moving contact assembly (21), and the rotating shaft (14) of the operating mechanism (10) is transmission-connected to the moving contact assembly (21) for driving the moving contact assembly (21) to rotate so as to open or close the switch with the stationary contact assembly (22).

5. The rotary switch (100) according to claim 4, characterized in that: The orthographic projections of the moving contact assemblies (21) of any two adjacent switch units (20) along the first direction (c) overlap or substantially overlap.

6. The rotary switch (100) according to claim 4, characterized in that: The moving contact assembly (21) of at least one of the switch units (20) and the moving contact assembly (21) of the other switch units (20) are arranged crosswise along the orthographic projection of the first direction (c).

7. The rotary switch (100) according to any one of claims 4 to 6, characterized in that: The moving contact assembly (21) comprises a contact support (210) and a moving contact (211) connected to the contact support (210); the contact support (210) is drivingly connected to the rotating shaft (14); two opposing baffles (213) are provided on the outer periphery of the contact support (210); when the switch unit (20) is in the open position, the baffle (213) is away from one end of the contact support (210), the static contact (221), and a line connecting one end of the moving contact (211) to form a triangle.

8. The rotary switch (100) according to claim 4, characterized in that: The stationary contact assembly (22) comprises a stationary contact (221), the stationary contact (221) comprises a contact portion (2211) and a wiring portion (2212), the two contact portions (2211) respectively cooperate with the moving contact assembly (21), the contact portion (2211) extends along a straight line in a preset direction (d), the two contact portions (2211) are arranged opposite to each other in the preset direction (d), and the preset direction (d) is perpendicular to the rotation axis (e) of the moving contact assembly; The shell (20a) has a first side surface (20a1) and a second side surface (20a2) opposite to each other, and a wiring port (23) is respectively provided on the first side surface (20a1) and the second side surface (20a2), and the two wiring ports (23) respectively correspond to the two wiring portions (2212); the wiring ports (23) on two adjacent layers of the shell (20a) are arranged opposite to each other in the stacking direction.

9. The rotary switch (100) according to claim 8, characterized in that: The shell (20a) has a third side surface (20a3) located between the first side surface (20a1) and the second side surface (20a2), and two wiring channels (24) are provided on the third side surface (20a3). The two wiring channels (24) respectively correspond to the wiring parts (2212) of the two static contacts (221), and the wiring channels (24) are used for the wiring terminals connected to the wiring parts (2212) to pass through.

10. The rotary switch (100) according to claim 8, characterized in that: A second baffle (25) and a third baffle (26) are provided on the side of the wiring port (23); when at least two of the shells (20a) are stacked, an opening (142) of the second baffle (25) on one of the shells (20a) is blocked by the third baffle (26) on the other of the shells (20a), so as to form an annular baffle surrounding the wiring port (23).

11. The rotary switch (100) according to claim 10, characterized in that: Two fourth baffles (27) are respectively provided on the first side surface (20a1) and the second side surface (20a2) of the shell (20a); the two fourth baffles (27) are respectively located on two opposite sides of the second baffle (25); and the fourth baffles (27) are spaced apart from the second baffle (25).

12. A power supply system, characterized in that: The rotary switch (100) according to claim 5, wherein at least one switch unit (20) in the rotary switch (100) is connected to a main circuit.

13. A power supply system, characterized in that: The rotary switch (100) comprises at least an even number of switch units (20), wherein half of the even number of switch units (20) are connected to a first power source, and the other half are connected to a second power source.

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