Switch unit, rotary switch and power supply system

Abstract

The utility model provides a switch unit, a rotary switch and a power supply system, and relates to the technical field of low-voltage apparatuses. The switch unit comprises a shell and two groups of static contact assemblies and moving contact assemblies which are arranged in the shell, each static contact assembly comprises a static contact, each moving contact assembly comprises a moving contact, each static contact comprises a contact part and a wiring part, the two contact parts are matched with the moving contact respectively, the contact parts extend along a straight line in a preset direction, and the wiring parts are matched with the wiring parts. The two contact parts are arranged oppositely in a preset direction, and the preset direction is perpendicular to the rotation axis of the moving contact assembly; the shell is provided with a first side surface and a second side surface which are opposite to each other, 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 parts; and when the at least two shells are stacked, the wiring ports on the two adjacent layers of shells are oppositely arranged in the first direction. The switch unit is convenient for a customer to position and wire, and the production cost can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of low-voltage electrical appliances, and in particular to a switch unit, a rotary switch and a power supply system. Background Art

[0002] A general rotary switch is usually composed of several stacked switch units, each of which includes a unit housing, in which a corresponding moving contact assembly and a stationary contact assembly are installed, and between each unit housing, a shaft core is provided to drive each moving contact assembly to rotate synchronously, so that the moving contact assembly and the stationary contact assembly form a connection relationship of contact conduction and separation and disconnection. The part of the stationary contact assembly away from the moving contact assembly is the wiring part, and a wiring port corresponding to the wiring part is provided on the unit housing, and an external conductor can pass through the wiring port to be electrically connected to the connection part of the stationary contact assembly.

[0003] In current rotary switches, the wiring ports on the two adjacent layers of unit housings are staggered in the stacking direction to increase the creepage distance of the static contact assembly. However, the staggered setting is not convenient for customers to locate and wire, and also results in different structures of the unit housings of the two adjacent layers, resulting in higher production costs. Utility Model Content

[0004] The purpose of this application is to provide a switch unit, a rotary switch and a power supply system to address the deficiencies in the above-mentioned prior art, which can facilitate customer positioning and wiring and reduce production costs.

[0005] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows:

[0006] According to one aspect of an embodiment of the present application, a switch unit is provided, comprising a shell, two groups of static contact assemblies and a moving contact assembly arranged in the shell, the static contact assembly comprising a static contact, the moving contact assembly comprising a moving contact, the static contact comprising a contact portion and a wiring portion, the two contact portions respectively cooperate with the moving contact, the contact portion extends in a straight line in a preset direction, the two contact portions are arranged opposite 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, 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; when at least two shells are stacked, the wiring ports on the two adjacent layers of the shells are arranged opposite each other in the first direction, and the first direction is perpendicular to the preset direction.

[0007] 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.

[0008] Optionally, a first accommodating groove is provided in the shell, the moving contact assembly is located in the first accommodating groove, and two first baffles are provided in the first accommodating groove; when the moving contact is in the closed position, the orthographic projection of the bottom of the first accommodating groove and the edge of the bottom of the first accommodating groove form two acute-angle areas, and the two first baffles are respectively located in the two acute-angle areas.

[0009] 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.

[0010] Optionally, two fourth baffles are respectively provided on the first side surface and the second side surface of the shell, and 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.

[0011] Optionally, the two groups of stationary contact assemblies are located at a central position of the housing.

[0012] Optionally, the moving contact assembly further includes a contact bracket, the moving contact is arranged on the contact bracket, two ends of the contact bracket respectively form semi-enclosed open grooves, and the ends of the moving contact and the static contact that cooperate are located in the open grooves.

[0013] Optionally, two opposite fifth baffles are provided on the periphery of the contact support, and when the switch unit is in the open position, a line connecting one end of the fifth baffle away from the contact support, the static contact, and one end of the moving contact forms a triangle.

[0014] According to one aspect of an embodiment of the present application, a rotary switch is provided, comprising a plurality of switch units and operating mechanisms as described above, stacked along a first direction, wherein a rotating shaft of the operating mechanism is transmission-connected to a moving contact assembly of the switch unit, and is used to drive the moving contact assembly to rotate so as to open or close the switch with the stationary contact assembly.

[0015] Optionally, projections of two groups of stationary contact assemblies in two adjacent switch units in the first direction overlap to form a first projection or substantially overlap to form a second projection.

[0016] Optionally, the operating mechanism includes a mechanism base and a rotating shaft arranged in the mechanism base, and the rotating shaft is used to connect with the moving contact assembly to drive the moving contact assembly to rotate; a limiting structure is arranged between the mechanism base and the rotating shaft so that the rotation angle of the moving contact assembly is an obtuse angle.

[0017] Optionally, the limiting structure includes two first limiting protrusions arranged on the mechanism base, and two second limiting protrusions arranged on the rotating shaft, the first limiting protrusion has a first side wall and a second side wall, and the second limiting protrusion has a third side wall and a fourth side wall; when any second limiting protrusion rotates from the position where the fourth side wall abuts against the first side wall of the corresponding first limiting protrusion to the position where the third side wall abuts against the second side wall of another first limiting protrusion, the rotation angle is an obtuse angle.

[0018] Optionally, the operating mechanism also includes a handle, a mechanism cover, and a lever arranged in sequence, one end of the lever passes through the mechanism cover and is connected to the handle; the other end of the lever is linked to the rotating shaft; a first limit platform and a second limit platform are arranged on the mechanism cover, the first limit platform and the second limit platform are used to limit the rotating shaft in the closing and opening positions respectively, and an obtuse angle is arranged between the first limit platform and the second limit platform.

[0019] Optionally, the lever is further provided with a first latching protrusion and a second latching protrusion, and the upper cover of the mechanism is provided with a third limit platform, the third limit platform is formed with a fifth side wall and a sixth side wall opposite to each other, so as to abut against the side wall of the first latching protrusion and the side wall of the second latching protrusion respectively; when the side wall of the first latching protrusion abuts against the fifth side wall, the rotation range between the side wall of the second latching protrusion and the sixth side wall is an obtuse angle; when the side wall of the second latching protrusion abuts against the sixth side wall, the rotation range between the side wall of the first latching protrusion and the fifth side wall is an obtuse angle.

[0020] Optionally, the operating mechanism includes a driving component, a rotating shaft drivingly connected to the driving component, 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 direction 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.

[0021] Optionally, a first limit platform is provided on the side of the mechanism cover close to the rotating shaft, a cantilever beam 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 cantilever beam 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 the forward or reverse direction, and the crimping portion can act on the cantilever beam to circumferentially unlock the rotating shaft and the mechanism cover.

[0022] 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.

[0023] Optionally, the orthographic projections of the moving contact assemblies of any two adjacent switch units along the first direction overlap or substantially overlap.

[0024] 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.

[0025] On the other hand, an embodiment of the present application provides a power supply system, including a control unit, a power supply, a rotary switch as described in any of the above items, and a power conversion switch, wherein the rotary switch is electrically connected between the power supply and the power conversion switch, and the control unit is used to send relevant signals of the power supply or the power conversion switch to the rotary switch.

[0026] Optionally, the rotary switch has at least one layer of switch units connected to the first circuit, and other layers of switch units connected to other circuits other than the first circuit.

[0027] The beneficial effects of this application include:

[0028] The present application provides a switch unit, including a housing, two groups of static contact assemblies and a moving contact assembly arranged in the housing, the static contact assembly includes a static contact, the moving contact assembly includes a moving contact, the static contact includes a contact portion and a wiring portion, the two contact portions are respectively matched with the moving contact, the contact portion extends in a straight line in a preset direction, the two contact portions are arranged opposite each other in the preset direction, and the preset direction is perpendicular to the rotation axis of the moving contact assembly; the housing has a first side surface and a second side surface opposite to each other, the first side surface and the second side surface are respectively provided with wiring ports, and the two wiring ports correspond to the two wiring portions respectively; when at least two housings are stacked, the wiring ports on the two adjacent layers of housings are arranged opposite each other in the first direction. In the switch unit, the contact portions of the two static contacts in the housing extend in a preset direction and are arranged opposite each other in the preset direction. After the housings are stacked, the wiring ports on the two adjacent layers of housings are arranged opposite each other in the first direction, and the first direction is perpendicular to the preset direction. In this way, it is convenient for customers to locate and wire, and it can also reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 One of the structural schematic diagrams of the switch unit provided in the embodiment of the present application;

[0031] Figure 2a One of the schematic diagrams of the switch unit stacking provided in the embodiment of the present application;

[0032] Figure 2b A second schematic diagram of a switch unit stack provided in an embodiment of the present application;

[0033] Figure 3 The second structural diagram of the switch unit provided in the embodiment of the present application;

[0034] Figure 4 The third structural diagram of the switch unit provided in the embodiment of the present application;

[0035] Figure 5 A schematic diagram of the structure of a moving contact assembly in a switch unit provided in an embodiment of the present application;

[0036] Figure 6 One of the partial structural schematic diagrams of the rotary switch provided in the embodiment of the present application;

[0037] Figure 7 One of the structural schematic diagrams of the rotary switch provided in the embodiment of the present application;

[0038] Figure 8 One of the exploded structural schematic diagrams of the rotary switch provided in the embodiment of the present application;

[0039] Fig. 9 A third schematic diagram of a stack of switch units provided in an embodiment of the present application;

[0040] Fig.10 A fourth schematic diagram of a stack of switch units provided in an embodiment of the present application;

[0041] Fig.11 This is one of the schematic diagrams of the cooperation between the mechanism base and the rotating shaft of the operating mechanism provided in the embodiment of the present application;

[0042] Fig.12 A schematic diagram of the structure of the mechanism base of the operating mechanism provided in an embodiment of the present application;

[0043] Fig.13 The second schematic diagram of the cooperation between the mechanism base and the rotating shaft of the operating mechanism provided in the embodiment of the present application;

[0044] Fig.14 The second exploded structural diagram of the rotary switch provided in the embodiment of the present application;

[0045] Fig.15 A schematic diagram of the lever structure of the operating mechanism provided in an embodiment of the present application;

[0046] Fig.16 One of the schematic diagrams of the rotating shaft structure of the operating mechanism provided in the embodiment of the present application;

[0047] Fig.17 The second schematic diagram of the rotating shaft structure of the operating mechanism provided in the embodiment of the present application;

[0048] Fig.18A schematic diagram of the cooperation between the upper cover and the lever of the operating mechanism provided in an embodiment of the present application;

[0049] Fig.19 The second structural diagram of the rotary switch provided in the embodiment of the present application;

[0050] Fig. 20 The third structural diagram of the rotary switch provided in the embodiment of the present application;

[0051] Fig.21 A fourth structural diagram of a rotary switch provided in an embodiment of the present application;

[0052] Fig. 22 A schematic diagram of the structure of a drive assembly and a rotating shaft provided in an embodiment of the present application;

[0053] Fig.23 One of the structural schematic diagrams of the upper cover of the mechanism provided in the embodiment of the present application;

[0054] Fig.24 The second structural diagram of the upper cover of the mechanism provided in the embodiment of the present application;

[0055] Fig.25 A schematic diagram of the structure of a lever provided in an embodiment of the present application;

[0056] Fig.26 A schematic diagram of the structure of the rotating shaft and the elastic member provided in the embodiment of the present application;

[0057] Fig. 27 One of the structural schematic diagrams of the mechanism base provided in the embodiment of the present application;

[0058] Fig.28 The second structural diagram of the mechanism base provided in the embodiment of the present application;

[0059] Fig.29 One of the structural schematic diagrams of the drive assembly, the rotating shaft and the mechanism base provided in the embodiment of the present application;

[0060] Fig.30 The second structural schematic diagram of the drive assembly, the rotating shaft and the mechanism base provided in the embodiment of the present application;

[0061] Fig.31 One of the structural schematic diagrams of the rotating shaft provided in the embodiment of the present application;

[0062] Fig.32 The second structural schematic diagram of the rotating shaft provided in the embodiment of the present application;

[0063] Fig.33 A fourth structural diagram of a switch unit provided in an embodiment of the present application;

[0064] Fig.34 A fifth structural diagram of a switch unit provided in an embodiment of the present application;

[0065] Fig.35 The sixth structural diagram of the switch unit provided in the embodiment of the present application;

[0066] Fig.36 The seventh structural diagram of the switch unit provided in the embodiment of the present application;

[0067] Fig.37 A connection diagram of a power supply system provided in an embodiment of the present application.

[0068] Icons: 100-rotary switch; 10-operating mechanism; 10A-driving assembly; 11-handle; 12-mechanism cover; 121-first limit platform; 122-second limit platform; 123-third limit platform; 123a-fifth side wall; 123b-sixth side wall; 124-receiving groove; 125-through groove; 13-lever; 13A-first body; 131-bending part; 132-first clamping protrusion; 132a-side wall; 133-second clamping protrusion; 133a-side wall; 134-crimping part; 135-rotating shaft; 14-rotating shaft; 140- Central axis; 141-cantilever beam; 141A-first cantilever beam; 141B-second cantilever beam; 142-opening; 143-connecting protrusion; 143a-second limiting protrusion; 143a1-third side wall; 143a2-fourth side wall; 144-protrusion; 145-matching hole; 15-mechanism base; 150-accommodating groove; 151-through hole; 152-first limiting protrusion; 152a-first side wall; 152b-second side wall; 153-accommodating cavity; 16-elastic member; 20-switch unit; 20a-housing; 201a-first side surface; 20 1b-second side; 201c-third side; 201d-fourth side; 202-wiring port; 203-wiring channel; 204a-first receiving slot; 204b-second receiving slot; 204c-support area; 205-first baffle; 206-acute angle area; 207a-second baffle; 207b-third baffle; 207c-fourth baffle; 208a-hook; 208b-slot; 208c-welding rod; 209a-airway; 209b-blocking body; 21-moving contact assembly; 210-contact bracket; 2101-matching Structure; 211-moving contact; 212-spring; 213-fifth baffle; 214-first rotating protrusion; 215-second rotating protrusion; 216-opening groove; 22-stationary contact assembly; 221-stationary contact; 2211-contact part; 2212-wiring part; 23-wiring terminal; 31-power supply; 32-power conversion switch; 33-control unit; a-rotation angle; b-preset direction; c-first direction; d-width; t-gap; A-forward; B-reverse; P-first projection; P0-second projection; P2-third projection; P20-fourth projection. DETAILED DESCRIPTION

[0069] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0070] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. It should be noted that, in the absence of conflict, the various features in the embodiments of the present application can be combined with each other, and the combined embodiments are still within the scope of protection of the present application.

[0071] 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.

[0072] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0073] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0074] In current rotary switches, the wiring ports on the two adjacent layers of unit housings are staggered in the stacking direction to increase the creepage distance of the static contact assembly. However, the staggered setting is not convenient for customers to locate and wire, and also results in different structures of the unit housings of the two adjacent layers, resulting in higher production costs.

[0075] In order to solve the above technical problems, one aspect of the embodiments of the present application is to refer to Figure 1 , Figure 2a and Figure 2b , a switch unit 20 is provided, comprising a housing 20a, two groups of stationary contact assemblies 22 and a moving contact assembly 21 arranged in the housing 20a, the stationary contact assembly 22 comprising a stationary contact 221, and the moving contact assembly 21 comprising a moving contact 211. The moving contact assembly 21 is driven to reciprocate in the housing 20a, so that both ends of the moving contact 211 are simultaneously in contact with the two stationary contacts 221 for conduction or separated for disconnection.

[0076] 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 are respectively matched with the two ends of the moving contact 211, and the wiring portion 2212 is used to be electrically connected to an external conductor. A preset direction b is divided on the housing 20a, and the preset direction b is perpendicular to the rotation axis of the moving contact assembly 21, preferably the length direction of the housing 20a. The contact portion 2211 extends in a straight line in the preset direction b, and the contact portions 2211 of the two stationary contacts 221 are arranged opposite to each other in the preset direction b.

[0077] The housing 20a has a first side surface 201a and a second side surface 201b opposite to each other. The first side surface 201a and the second side surface 201b are respectively provided with a wiring port 202. The wiring port 202 is communicated with the interior of the housing 20a. The two wiring ports 202 correspond to the wiring portions 2212 of the two stationary contacts 221. The external conductor passes through the wiring port 202 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 202 on the two adjacent layers of housings 20a are arranged opposite to each other in the first direction c (i.e., the stacking direction).

[0078] 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, and only a small part of the area is slightly offset. The slight offset in a small part of the area is usually caused by processing errors. Figure 1 As shown by the dotted line in Figure 1 The contact portions 2211 of the two stationary contacts 221 shown in the figure are arranged opposite to each other in the preset direction b, but a small part of the area is slightly staggered. Figure 2b As shown by the dotted line in Figure 2b The connection port 202 shown in FIG.

[0079] In the switch unit 20, the contact portions 2211 of the two static contacts 221 in the housing 20a extend in a preset direction and are arranged opposite to each other in the preset direction. After the housings 20a are stacked, the wiring ports 202 on two adjacent layers of housings 20a are arranged opposite to each other in the first direction c. In this way, it is convenient for customers to locate and connect the wires, and the production cost can also be reduced.

[0080] Optionally, two opposite wiring ports 202 on the same housing 20a are arranged opposite to each other along a preset direction b, so that the structure of the housing 20a is more symmetrical, further facilitating user positioning and wiring.

[0081] Optionally, two groups of stationary contact assemblies 22 are located at the center of the housing 20 a.

[0082] Optionally, the housing 20a has a third side surface 201c located between the first side surface 201a and the second side surface 201b, and the third side surface 201c is provided with two wiring channels 203, and the wiring channels 203 are connected to the interior of the housing 20a. The two wiring channels 203 correspond to the wiring portions 2212 of the two stationary contacts 221, respectively, and the wiring channels 203 are used for the wiring terminals 23 connected to the wiring portions 2212 to pass through.

[0083] During wiring, the external conductor extends from the wiring port 202 into the side of the wiring portion 2212 of the static contact 221 in the housing 20a, and the wiring terminal 23 extends from the wiring channel 203 into the housing 20a to fix the external conductor to the wiring portion 2212.

[0084] Optionally, the two wiring channels 203 are symmetrically distributed along the preset direction b. That is, the two wiring channels 203 on the same housing 20a are spaced apart along a straight line parallel to the preset direction b, and the distance between one wiring channel 203 and the first side 201a is equal to the distance between the other wiring channel 203 and the second side 201b.

[0085] Optionally, see Figure 3 A first accommodating groove 204a is provided in the shell 20a, and the moving contact assembly 21 is located in the first accommodating groove 204a. Two first baffles 205 are provided in the first accommodating groove 204a. One end of the first baffle 205 is connected to the side wall of the first accommodating groove 204a, and the other end thereof extends into the interior of the first accommodating groove 204a.

[0086] The moving contact 211 has a closing position ( Figure 3 The solid line position in the figure) and the open position ( Figure 3 The orthographic projection of the bottom of the first accommodating groove 204a when the moving contact 211 is in the closed position and the orthographic projection of the bottom of the first accommodating groove 204a and the edge of the bottom of the first accommodating groove 204a when the moving contact 211 is in the open position enclose two acute angle areas 206, and the included angle α of the acute angle area 206 is less than 90°. The two first baffles 205 are respectively located in the two acute angle areas 206.

[0087] When the opening and closing angle of the moving contact 211 is an obtuse angle, the above-mentioned acute angle region 206 will be formed in the housing 20a. At this time, when the moving contact 211 moves to the opening position, the moving contact point at one end of the moving contact 211 gradually moves away from the contact portion of the mating static contact 221, but is too close to the contact portion 2211 of the other static contact 221. The first baffle 205 is arranged in the acute angle region 206 to isolate the moving contact 211 from the static contact 221 when the moving contact 211 is in the opening position.

[0088] Preferably, the first baffle 205 is located on the edge side of the acute angle region 206 close to the moving contact 211 , so that the moving contact 211 can also be limited.

[0089] Optionally, please refer to Figure 4 A second accommodating groove 204b is provided in the shell 20a, and the static contact assembly 22 is located in the second accommodating groove 204b. A supporting area 204c is provided between the first accommodating groove and the second accommodating groove 204b. The contact portion 2211 of the static contact 221 is provided on the supporting area 204c and extends to the top of the first accommodating groove 204a to cooperate with the moving contact 211.

[0090] When the housings 20a are stacked, the wiring ports 202 on the two adjacent 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, please refer to Figure 2a A second baffle 207a and a third baffle 207b are provided on the side of the connection port 202. When at least two housings 20a are stacked, the opening of the second baffle 207a on one housing 20a is blocked by the third baffle 207b on the other housing 20a to form an annular baffle surrounding the connection port 202.

[0091] For example, the second baffle 207a is U-shaped, the opening of the second baffle 207a faces upward and is located on the upper surface of the shell 20a, and the third baffle 207b is a flat plate, and the third baffle 207b is located below the second baffle 207a.

[0092] Optionally, two fourth baffles 207c are respectively provided on the first side 201a and the second side 201b of the housing 20a, and the two fourth baffles 207c are respectively located on two opposite sides of the second baffle 207a, and the fourth baffle 207c is spaced from the second baffle 207a, and an isolation space is also formed between the fourth baffle 207c and the second baffle 207a. Preferably, the second baffle 207a, the third baffle 207b and the fourth baffle 207c have the same size in a preset direction, so that the end surface of the housing 20a is flat.

[0093] Optionally, one of the upper surface and the lower surface of the shell 20a is provided with a hook 208a, and the other is provided with a slot 208b, and the hook 208a on one shell 20a is engaged with the slot 208b on the other shell 20a, thereby connecting two adjacent layers of shells 20a.

[0094] Furthermore, a plurality of welding rods 208c are provided on the side of the hook 208a, and the plurality of welding rods 208c are distributed at intervals along a preset direction. After the two layers of the shell 20a are spliced, the welding rod 208c is located between the hook 208a and the slot 208b, and is used to weld the hook 208a and the slot 208b to improve the stability of the connection between the shells 20a.

[0095] Optionally, the housing 20a further has a fourth side surface 201d, which is opposite to the third side surface 201c. A plurality of air passages 209a are provided in the housing 20a, and the air passages 209a extend along the third side surface 201c or the fourth side surface 201d, and the head end of the air passage 209a is connected to the first receiving groove 204a, and the end end is located on the first side surface 201a or the second side surface 201b.

[0096] Furthermore, there are four air passages 209a, two of which extend along the third side 201c, with their ends located at the first side 201a and the second side 201b, respectively, and the other two air passages 209a extend along the fourth side 201d, with their ends located at the first side 201a and the second side 201b, respectively. Multiple blocking bodies 209b can be arranged in an interlaced manner in the air passage 209a along its extension direction, and the gas needs to bypass the multiple blocking bodies 209b in sequence when leaving the air passage. Under the premise that the length of the air passage 209a remains unchanged, the actual movement path of the gas in the air passage 209a can be effectively extended.

[0097] Optionally, see Figure 5 The moving contact assembly 21 further includes a contact bracket 210 , on which the moving contact 211 is disposed. Both ends of the contact bracket 210 respectively form semi-enclosed opening grooves 216 , and the ends of the moving contact 211 that cooperate with the stationary contact 221 are located in the opening grooves 216 .

[0098] The moving contact 211 has two pieces, and the two moving contacts 211 are stacked. The static contact 221 of the static contact assembly 22 extends between the two moving contacts 211 to achieve contact; a spring 212 is also provided on the side of the two moving contacts 211 away from each other, which is used to squeeze the area between the two moving contacts 211, so that the static contact 221 can be clamped to achieve reliable contact between the moving contact 211 and the static contact 221. The provision of the two moving contacts 211 can increase the contact area with the static contact assembly 22 and can effectively dissipate heat.

[0099] Semi-enclosed opening grooves 216 are formed at both ends of the contact bracket 210. For example, the opening groove 216 is a U-shaped groove, and the end of the moving contact 211 is located in the opening groove 216 to achieve a semi-wrapped setting for the moving contact 211, thereby playing an insulating role for the back area of ​​the opening groove 216.

[0100] In the present application, the opening grooves 216 at both ends of the moving contact 211 are arranged back to back, so that the opening grooves 216 can isolate one end and the other end of the moving contact 211, preventing the arcs from interfering with each other when the two ends of the moving contact 211 contact or separate from the corresponding static contact assembly 22, thereby affecting the opening and closing performance.

[0101] In addition, fifth baffles 213 are formed on both sides of the contact bracket 210. When in the open position, the connecting line of any fifth baffle 213, the adjacent static contact assembly 22 and the end of the moving contact assembly 21 in contact with the static contact assembly 22 forms a triangle to increase the creepage distance.

[0102] Please refer to Figure 6 A line L1 is formed between the left static contact assembly 22 and the fifth baffle 213 at the bottom, a line L2 is formed between the fifth baffle 213 at the bottom and the lower end of the moving contact 211, and a line L3 is formed between the left static contact assembly 22 and the lower end of the moving contact 211; the above three lines form a triangle, and the sum of the two sides of the triangle is greater than the third side, that is, L1+L2>L3.

[0103] In this way, the setting of the fifth baffle 213 is equivalent to separating the lower ends of the left static contact assembly 22 and the moving contact 211, and the formed electrical gap L1+L2 is larger than the electrical gap L3 directly face to face between the lower ends of the left static contact assembly 22 and the moving contact 211, which is equivalent to increasing the electrical gap, increasing the arc movement length, thereby increasing the creepage distance, and the arc is easier to extinguish, which is beneficial to the stability and safety of the opening and closing of the moving and static contacts.

[0104] The upper ends of the left static contact assembly 22 and the moving contact 211, and the two ends of the right static contact assembly 22 and the moving contact 211 are respectively formed into similar triangles to increase the creepage distance. Figure 6 The example is not repeated here.

[0105] For the multi-layer switch unit 20, please refer to Figure 5 A first rotating protrusion 214 and a second rotating protrusion 215 are respectively provided on both sides of the contact bracket 210. The first rotating protrusion 214 of the topmost switch unit 20 is connected to the connecting protrusion 143 of the rotating shaft 14. The switch units 20 of two adjacent layers are connected through their respective first rotating protrusions 214 and second rotating protrusions 215, thereby realizing the synchronous rotation of the multi-layer switch units 20.

[0106] Please refer to Figure 7 and Figure 8 The embodiment of the present application also discloses a rotary switch 100, comprising a plurality of switch units 20 and an operating mechanism 10 as described above, stacked in a first direction, wherein a rotating shaft 14 of the operating mechanism 10 is transmission-connected to a moving contact assembly 21 of the switch unit 20, 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.

[0107] The rotary switch 100 includes the same structure and beneficial effects as the switch unit 20 in the aforementioned embodiment. The structure and beneficial effects of the switch unit 20 have been described in detail in the aforementioned embodiment, and will not be repeated here.

[0108] Optionally, see Fig. 9 and Fig.10 The projections of the two groups of static contact assemblies 22 in the two adjacent switch units 20 in the first direction c overlap or substantially overlap. The regular layout of the rotary switch 100 is conducive to flexibly increasing or decreasing the number of stacked switch units 20 to meet different scene requirements.

[0109] like Fig. 9 and Fig.10 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 P of a solid line is formed; when the projections of the static contact assemblies 22 of the switch units 20 of two adjacent layers in the first direction c have a slight deviation due to installation errors and the like and basically overlap, a second projection P0 in which the solid line and the dotted line overlap is formed.

[0110] 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.

[0111] Optionally, see Figure 8 , Fig. 9 and Fig.11 The operating mechanism 10 includes a mechanism base 15 and a rotating shaft 14 arranged in the mechanism base 15. The rotating shaft 14 is used to connect with the moving contact assembly 21 to drive the moving contact assembly 21 to rotate; a limiting structure is arranged between the mechanism base 15 and the rotating shaft 14 so that the rotation angle of the moving contact assembly is an obtuse angle.

[0112] The mechanism base 15 cooperates with the rotating shaft 14, which is located inside the mechanism base 15 and connected to the moving contact assembly 21. The moving contact assembly 21 is driven by the rotating shaft 14 to rotate to contact or separate from the static contact assembly 22, thereby achieving closing or opening.

[0113] Among them, a limiting structure is provided between the mechanism base 15 and the rotating shaft 14, and the limiting structure can limit the rotation angle a of the rotating shaft 14, thereby limiting the rotation angle a of the moving contact assembly 21. The present application limits the rotation angle a of the moving contact assembly 21 to an obtuse angle range greater than 90°, for example, a rotation angle a of 120°, through the limiting structure. Compared with the prior art in which the moving contact is opened and closed at a rotation angle of 90°, the present application has a rotation angle a within the obtuse angle range, which can realize opening and closing operations at a large opening angle, and can greatly improve the performance of the product without increasing the volume of the product.

[0114] Optionally, see Figure 12 to Figure 14 The limiting structure includes two first limiting protrusions 152 arranged on the mechanism base 15 and two second limiting protrusions 143a arranged on the rotating shaft 14, and the obtuse angle rotation range is achieved by abutting the corresponding first limiting protrusions 152 and the second limiting protrusions 143a.

[0115] For example, the first limiting protrusion 152 has a first side wall 152a and a second side wall 152b, and the second limiting protrusion 143a has a third side wall 143a1 and a fourth side wall 143a2. When any second limiting protrusion 143a rotates from the position where the fourth side wall 143a2 abuts against the first side wall 152a of the corresponding first limiting protrusion 152 to the position where the third side wall 143a1 abuts against the second side wall 152b of another first limiting protrusion 152, the rotation angle a is an obtuse angle.

[0116] The fourth side wall 143a2 of the second limiting protrusion 143a abuts against the first side wall 152a of the corresponding first limiting protrusion 152. Fig.11 In the embodiment, the third side wall 143a1 is separated from the corresponding second side wall 152b; the third side wall 143a1 is in contact with the second side wall 152b of another first limiting protrusion 152, that is, Fig.13 The fourth side wall 143a2 is separated from the corresponding first side wall 152a of the first limiting protrusion 152.

[0117] The second limiting protrusion 143a is Fig.11 Position rotated to Fig.13 position, the rotation angle a is an obtuse angle, thereby limiting the rotation angle a of the rotating shaft 14 to an obtuse angle range.

[0118] Reference Fig.11 It should be noted that, the smaller the width d between the third side wall 143a1 and the fourth side wall 143a2 of the second limiting protrusion 143a of the present application is, the larger the rotation range of the reserved rotation angle a is, that is, the larger the value of the rotation angle a is.

[0119] Furthermore, a receiving groove 150 is provided on the mechanism base 15, and the rotating shaft 14 is located in the receiving groove 150; a through hole 151 is provided in the receiving groove 150, and a first limiting protrusion 152 is formed on the hole wall of the through hole 151; a connecting protrusion 143 is provided on the rotating shaft 14, and the connecting protrusion 143 is passed through the through hole 151 to be connected with the moving contact assembly 21, and a second limiting protrusion 143a is formed on the connecting protrusion 143.

[0120] Optionally, see Figure 7 and Fig.14The operating mechanism 10 further includes a handle 11, a mechanism cover 12, and a lever 13, which are sequentially arranged. One end of the lever 13 passes through the mechanism cover 12 and is connected to the handle 11. An elastic member 16 is sleeved on the rotating shaft 14. For example, the elastic member 16 is a torsion spring, which is sleeved on the central axis 140 of the rotating shaft 14. The other end of the lever 13 is linked with the rotating shaft 14 through the elastic member 16, and the handle 11 drives the lever 13 to rotate. The rotation of the lever 13 drives the elastic member 16 to store energy to drive the rotating shaft 14 to rotate.

[0121] The lever 13 is provided with Fig.15 The bent portion 131 is shown, and one end of the elastic member 16 is connected to the bent portion 131, and the other end is connected to the protrusion 144 of the rotating shaft 14. When the lever 13 rotates, the bent portion 131 drives the torsion spring to rotate and store energy.

[0122] A first limit platform 121 and a second limit platform 122 are provided on the mechanism upper cover 12. The first limit platform 121 and the second limit platform 122 are used to limit the rotating shaft 14 in the closing position and the opening position respectively. An obtuse angle is sandwiched between the first limit platform 121 and the second limit platform 122 to further limit the rotation angle a of the rotating shaft 14 within the obtuse angle range.

[0123] Specifically, Fig.16 , Fig.17 As shown, two cantilever beams 141 are formed on the rotating shaft 14, a gap t is formed between the cantilever beams 141 and the rotating shaft 14, and an opening 142 is formed between the two cantilever beams 141. When the opening 142 is respectively engaged with the first limiting platform 121 and the second limiting platform 122, the closing position and the opening position of the rotating shaft 14 are limited.

[0124] The principle of the operating mechanism 10 of the present application, taking the operating mechanism 10 from opening to closing as an example, the handle 11 is rotated from the opening position to the closing position, and the handle 11 drives the lever 13 to rotate. The lever 13 rotates to torsion spring to store energy. At this time, the rotating shaft 14 is in a locked state due to the engagement of the opening 142 with the second limit platform 122, and the torsion spring cannot drive the rotating shaft 14 to rotate. The handle 11 continues to drive the lever 13 to rotate, and the first locking protrusion 132 of the lever 13 rotates toward the opening 142, and presses down the cantilever beam 141, so that the opening 142 and the second limit platform 122 are disengaged, and the locking state is released. At this time, the torsion spring releases energy and drives the rotating shaft 14 to rotate. When the rotating shaft 14 rotates to the position where the opening 142 is engaged with the first limit platform 121, the rotating shaft 14 is locked, and the closing is completed. The process from closing to opening is the opposite, and will not be repeated.

[0125] The lever 13 is further provided with a first locking protrusion 132 and a second locking protrusion 133 , and the mechanism upper cover 12 is provided with a third limiting platform 123 , and the lever 13 is limited by the third limiting platform 123 abutting against the first locking protrusion 132 and the second locking protrusion 133 respectively.

[0126] Specifically, Fig.18 As shown, the third limiting platform is formed with a fifth side wall 123a and a sixth side wall 123b opposite to each other, so as to respectively abut against the side wall 132a of the first clamping protrusion 132 and the side wall 133a of the second clamping protrusion 133. When the side wall 132a of the first clamping protrusion 132 abuts against the fifth side wall 123a, the rotation range between the side wall 133a of the second clamping protrusion 133 and the sixth side wall 123b is an obtuse angle. When the side wall 133a of the second clamping protrusion 133 abuts against the sixth side wall 123b, the rotation range between the side wall 132a of the first clamping protrusion 132 and the fifth side wall 123a is an obtuse angle.

[0127] Optionally, see Figures 19 to 23 The operating mechanism 10 includes a driving assembly 10A, a rotating shaft 14 drivingly connected to the driving assembly 10A, 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 driving assembly 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 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.

[0128] 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.

[0129] 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.

[0130] Please note that, please refer to Fig.17 and Fig.18 A mating hole 145 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 145. The mating structure 2101 mating with the mating hole 145, the rotating shaft 14 may mating with the mating structure 2101 of the moving contact assembly 21 through the mating hole 145 to realize driving of the moving contact assembly 21.

[0131] 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.

[0132] The first working position represents one 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 the opening position and the other is the closing position. For example, when the first working position is the opening position, the second working position is the closing position; conversely, when the first working position is the closing position, the second working position is the opening position.

[0133] 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.

[0134] 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.

[0135] 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.

[0136] Optionally, see Figure 21 to Figure 24The mechanism upper cover 12 has a first limit platform 121 on one side close to the rotating shaft 14, the rotating shaft 14 has a cantilever beam 141 on one side close to the mechanism upper cover 12, and the driving component 10A has a crimping portion 134; in the first working position and the second working position, the cantilever beam 141 and the first limit platform 121 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 134 can act on the cantilever beam 141 to circumferentially unlock the rotating shaft 14 and the mechanism upper cover 12.

[0137] The first limit platform 121 provided on the mechanism upper cover 12 and the cantilever beam 141 provided on the rotating shaft 14 can cooperate or release cooperation, thereby realizing locking or unlocking of the mechanism upper cover 12 .

[0138] In this embodiment, please refer to Fig. 20 and Fig.21 The mechanism upper cover 12 is also provided with a through slot 125, and the through slot 125 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 to the side away from the rotating shaft 14 through the through slot 125 can be connected to the handle 11, so that the driving component 10A can be driven to rotate by the handle 11.

[0139] In addition, a receiving groove 124 connected to the through groove 125 can be further provided on the side of the mechanism upper cover 12 facing the rotating shaft 14. The receiving groove 124 is located between the through groove 125 and the rotating shaft 14. At least a portion of the driving component 10A can be received in the receiving groove 124, and another portion can pass through the through groove 125 and extend out of the through groove 125.

[0140] It should be noted that when the mechanism upper cover 12 and the rotating shaft 14 are locked, the first limit platform 121 is clamped in the cantilever beam 141, so that the rotating shaft 14 cannot rotate due to the blocking effect of the first limit platform 121. In other words, the first limit platform 121 is clamped in the cantilever beam 141 in both the first working position and the second working position.

[0141] The crimping portion 134 provided on the driving component 10A can act on the cantilever beam 141. 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 134 can act on the cantilever beam 141, thereby unlocking the cantilever beam 141 and the first limit platform 121. 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.

[0142] Optionally, see Fig.25 and Fig.26The 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 134 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.

[0143] 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 134 on the lever 13 acts on the cantilever beam 141 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.

[0144] 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 134 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.

[0145] Please refer to Fig. 22 and Fig.25 The lever 13 further includes a rotating shaft 135 connected to the first body 13A. The rotating shaft 135 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 135. It should be noted that the rotating shaft 135 can be connected to the handle 11. In this case, the rotating shaft 135 can pass through the through slot 125 of the mechanism upper cover 12 and be connected to the handle 11.

[0146] Also, please refer to Fig.31 and Fig.32 The cantilever beam 141 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 121 is clamped between the first cantilever beam 141A and the second cantilever beam 141B.

[0147] In this way, when the operating mechanism 10 is in the first working position or the second working position, the first limit platform 121 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 134 can act on one of the cantilever beams (the positive direction A rotation can act on the second cantilever beam 141B, the reverse direction B rotation 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.

[0148] Optionally, the crimping part 134 includes two, and the two crimping parts 134 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 134 can act on the second cantilever beam 141B; when the driving component 10A rotates in the reverse direction B, the other crimping part 134 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.

[0149] 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.

[0150] 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.

[0151] 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 121. That is, if the first working positions and the second working positions each include two, then the first limiting platforms 121 include four. Fig.24 shown.

[0152] In addition, please refer to Figures 27 to 30 The present application may further include a mechanism base 15, the mechanism base 15 is provided with a receiving groove 150, a receiving cavity 153 and a through hole 151 provided between the receiving groove 150 and the receiving cavity 153, the through hole 151 communicating with the receiving groove 150 and the receiving cavity 153 (such as Fig. 27 and Fig.28 shown).

[0153] 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 153. Fig.29 and Fig.30 shown.

[0154] 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.

[0155] In the first possible setting, such as Fig.35 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.

[0156] 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.

[0157] It should be noted that if Fig.33 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.36 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.

[0158] The projections of the moving contact assemblies 21 of the switch units 20 at each layer may have deviations.

[0159] In the second possible setting, such as Fig.34 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.

[0160] 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.

[0161] 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.

[0162] 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.

[0163] For example, 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.

[0164] Please refer to Fig.37 The embodiment of the present application also discloses a power supply system, including a control unit 33, a power supply 31, a power conversion switch 32 and the above-mentioned rotary switch 100, wherein 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.

[0165] The rotary switch 100 has at least one layer of switch units 20 connected to the first circuit, and other layers of switch units 20 connected to other circuits other than the first circuit.

[0166] In another aspect of the present application, a power supply system is provided. The power supply system includes the above-mentioned rotary switch 100 , and at least one switch unit 20 in the rotary switch 100 is connected to a first power source.

[0167] 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.

[0168] 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. In this case, at least one switch unit 20 in the power supply system is used as a rotary switch for connecting the first power source, and the other switch units 20 can be used as rotary switches or ordinary switches for connecting other circuits.

[0169] The present application also provides a power supply system. Fig.16 , Fig.30 and Fig.31 The power supply system includes the above-mentioned rotary switch 100, and 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.

[0170] 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.

[0171] 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.

[0172] 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.

[0173] 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;

[0174] 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 a rotary switch or a common switch to connect other circuits;

[0175] 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;

[0176] 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 a rotary switch 100 or a common switch to connect other circuits.

[0177] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A switch unit, characterized in that: It comprises a shell (20a), two groups of stationary contact assemblies (22) and a moving contact assembly (21) arranged in the shell (20a), the stationary contact assembly (22) comprising a stationary contact (221), the moving contact assembly (21) comprising a moving contact (211), the stationary contact (221) comprising a contact portion (2211) and a wiring portion (2212), the two contact portions (2211) respectively cooperate with the moving contact (211), the contact portions (2211) extend along a straight line in a preset direction (b), the two contact portions (2211) are arranged opposite to each other in the preset direction (b), and the preset direction is perpendicular to the rotation axis (135) line of the moving contact assembly (21); The shell (20a) has a first side surface (201a) and a second side surface (201b) opposite to each other, and the first side surface (201a) and the second side surface (201b) are respectively provided with a wiring port (202), and the two wiring ports (202) respectively correspond to the two wiring portions (2212); when at least two shells (20a) are stacked, the wiring ports (202) on two adjacent layers of the shells (20a) are arranged opposite to each other in a first direction (c), and the first direction (c) is perpendicular to the preset direction (b).

2. The switch unit according to claim 1, characterized in that: The shell (20a) has a third side surface (201c) located between the first side surface (201a) and the second side surface (201b), and two wiring channels (203) are provided on the third side surface (201c). The two wiring channels (203) respectively correspond to the wiring parts (2212) of the two static contacts (221), and the wiring channels (203) are used for allowing the wiring terminals (23) connected to the wiring parts (2212) to pass through.

3. The switch unit according to claim 1, characterized in that: A first accommodating groove (204a) is provided in the housing (20a), the moving contact assembly (21) is located in the first accommodating groove (204a), and two first baffles (205) are provided in the first accommodating groove (204a); The orthographic projection of the bottom of the first accommodating groove (204a) when the moving contact (211) is in the closed position, the orthographic projection of the bottom of the first accommodating groove (204a) when the moving contact (211) is in the open position, and the edge of the bottom of the first accommodating groove (204a) enclose two acute-angle areas (206), and the two first baffles (205) are respectively located in the two acute-angle areas (206).

4. The switch unit according to claim 1, characterized in that: A second baffle (207a) and a third baffle (207b) are provided on the side of the wiring port (202); when at least two shells (20a) are stacked, the opening (142) of the second baffle (207a) on one shell (20a) is blocked by the third baffle (207b) on another shell (20a), so as to form an annular baffle surrounding the wiring port (202).

5. The switch unit according to claim 4, characterized in that: Two fourth baffles (207c) are respectively provided on the first side surface (201a) and the second side surface (201b) of the shell (20a); the two fourth baffles (207c) are respectively located on two opposite sides of the second baffle (207a); and the fourth baffles (207c) are spaced apart from the second baffle (207a).

6. The switch unit according to claim 1, characterized in that: The two groups of stationary contact assemblies (22) are located at the center of the housing (20a).

7. The switch unit according to claim 1, characterized in that: The moving contact assembly (21) further comprises a contact support (210), the moving contact (211) being arranged on the contact support (210), both ends of the contact support (210) respectively forming a semi-enclosed open slot (216), and the end of the moving contact (211) that cooperates with the stationary contact (221) is located in the open slot (216).

8. The switch unit according to claim 7, characterized in that: Two opposite fifth baffles (213) are provided on the outer periphery of the contact support (210); when the switch unit (20) is in the open position, a line connecting one end of the fifth baffle (213) away from the contact support (210), the stationary contact (221), and one end of the moving contact (211) forms a triangle.

9. A rotary switch, characterized in that: It comprises a plurality of switch units and operating mechanisms (10) as described in any one of claims 1 to 8 stacked and arranged along a first direction (c), wherein a rotating shaft (14) of the operating mechanism (10) is transmission-connected to a moving contact assembly (21) of the switch unit (20) for driving the moving contact assembly (21) to rotate so as to open or close the switch with the stationary contact assembly (22).

10. The rotary switch according to claim 9, characterized in that: The projections of the two groups of stationary contact assemblies (22) in the two adjacent switch units (20) in the first direction (c) overlap to form a first projection (P) or substantially overlap to form a second projection (P0).

11. The rotary switch according to claim 9, characterized in that: The operating mechanism (10) comprises a mechanism base (15) and a rotating shaft (14) arranged in the mechanism base (15); the rotating shaft (14) is used to connect with a moving contact assembly (21) to drive the moving contact assembly (21) to rotate; a limiting structure is arranged between the mechanism base (15) and the rotating shaft (14) so ​​that the rotation angle (a) of the moving contact assembly (21) is an obtuse angle.

12. The rotary switch according to claim 11, characterized in that: The limiting structure comprises two first limiting protrusions (152) arranged on the mechanism base (15), and two second limiting protrusions (143a) arranged on the rotating shaft (14), wherein the first limiting protrusion (152) has a first side wall (152a) and a second side wall (152b), and the second limiting protrusion (143a) has a third side wall (143a1) and a fourth side wall (143a2); When any of the second limiting protrusions (143a) rotates from the position where the fourth side wall (143a2) abuts against the first side wall (152a) of the corresponding first limiting protrusion (152) to the position where the third side wall (143a1) abuts against the second side wall (152b) of another first limiting protrusion (152), the rotation angle (a) is the obtuse angle.

13. The rotary switch according to claim 11 or 12, characterized in that: The operating mechanism (10) further comprises a handle (11), a mechanism upper cover (12), and a lever (13) which are arranged in sequence; one end of the lever (13) passes through the mechanism upper cover (12) and is connected to the handle (11); the other end of the lever (13) is linked to the rotating shaft (14); A first limiting platform (121) and a second limiting platform (122) are provided on the mechanism upper cover (12); the first limiting platform (121) and the second limiting platform (122) are used to limit the rotating shaft (14) at the closing position and the opening position respectively; the obtuse angle is sandwiched between the first limiting platform (121) and the second limiting platform (122).

14. The rotary switch according to claim 13, characterized in that: The lever (13) is also provided with a first locking protrusion (132) and a second locking protrusion (133); the mechanism upper cover (12) is provided with a third limiting platform (123); the third limiting platform (123) is formed with a fifth side wall (123a) and a sixth side wall (123b) opposite to each other, so as to respectively abut against the side wall (132a) of the first locking protrusion (132) and the side wall (132a) of the second locking protrusion (133); When the side wall (132a) of the first latching protrusion (132) abuts against the fifth side wall (123a), the rotation range between the side wall (132a) of the second latching protrusion (133) and the sixth side wall (123b) is the obtuse angle; when the side wall (132a) of the second latching protrusion (133) abuts against the sixth side wall (123b), the rotation range between the side wall (132a) of the first latching protrusion (132) and the fifth side wall (123a) is the obtuse angle.

15. The rotary switch according to claim 9, 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) when 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.

16. The rotary switch according to claim 15, characterized in that: The side of the mechanism upper cover (12) close to the rotating shaft (14) is provided with a first limiting platform (121), the side of the rotating shaft (14) close to the mechanism upper cover (12) is provided with a cantilever beam (141), and the driving component (10A) is provided with a crimping portion (134); When in the first working position and the second working position, the cantilever beam (141) and the first limit platform (121) 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 drive assembly (10A) is driven to rotate in the forward direction (A) or the reverse direction (B), and the crimping portion (134) can act on the cantilever beam (141) to circumferentially unlock the rotating shaft (14) and the mechanism cover (12).

17. The rotary switch according to claim 15, 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.

18. The rotary switch according to claim 9, 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.

19. The rotary switch according to claim 9, 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).

20. A power supply system, characterized in that: The invention comprises a control unit (33), a power supply (31), a rotary switch according to any one of claims 9 to 19, and a power conversion switch (32), wherein 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).

21. The power supply system according to claim 20, characterized in that: The rotary switch (100) has at least one layer of switch units (20) connected to a first circuit, and the switch units (20) in other layers are connected to other circuits other than the first circuit.

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