Change-over switch

Abstract

A change-over switch comprises a shell and a switch pole, the switch pole comprises a rotating shaft and a contact mechanism, the contact mechanism comprises a moving contact assembly and a static contact set, a linkage piece is connected between the moving contact assembly and the rotating shaft and drives the moving contact assembly to move in the first direction, and the switch pole further comprises a self-locking piece. The moving contact assembly drives the self-locking piece to slide in the first direction, the rotating shaft is rotated, and the linkage piece of the moving contact assembly connected to the switching-on position is pushed by the rotating shaft firstly, so that one set of contact mechanism is switched off in place firstly, the other set of contact mechanism is switched on in place, and when one set of contact mechanism cannot be switched off, the linkage piece is pushed by the rotating shaft. And the self-locking piece is driven by the moving contact assembly of the other group of contact mechanism to move, so that the contact mechanism which cannot be switched off is switched off, or the self-locking piece is limited by the contact mechanism which cannot be switched off, so that the other group of contact mechanism cannot be switched on. According to the utility model, the rotating shaft drives one group of contact mechanisms to be switched off firstly, and the self-locking piece enables the two groups of contact mechanisms not to be switched on at the same time, so that the use safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of low voltage apparatus, concretely relates to a change-over switch. BACKGROUND

[0002] The change-over switch realizes the conversion of load line between two power sources, is widely used in various uninterrupted power supply places to ensure power supply reliability, and generally realizes the switching of normal and standby power sources by switching the opening and closing of two sets of contact mechanisms, and the existing products have the following defects: firstly, the opening and closing of the two sets of contact mechanisms is almost simultaneous, and when it cannot be ensured that one set of contact mechanisms opens first, the simultaneous closing of the two sets of contact mechanisms is prone to occur, which is not conducive to ensuring the safe use of the change-over switch; and secondly, although the interlocking structure can ensure that only one set of contact mechanisms is closed during normal operation, when one set of contact mechanisms cannot be opened due to welding, the interlocking structure cannot force the opening, which is prone to cause safety hazards. SUMMARY

[0003] The utility model aims at overcoming at least one defect of prior art, and provides a circuit breaker operating mechanism.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] The utility model provides a change-over switch, including shell and switch pole setting in the shell, the switch pole includes pivot and two sets of contact mechanisms, the pivot rotation is arranged between two sets of contact mechanisms, and one set of contact mechanisms is driven to close by the pivot, and the other set of contact mechanisms is opened, and each set of contact mechanisms includes the dynamic contact subassembly and static contact group of interval arrangement,

[0006] The switch pole further includes self-locking piece that is respectively with two dynamic contact subassembly cooperation, and the self-locking piece is driven to slide cooperation along the first direction with the shell by dynamic contact subassembly,

[0007] The linkage of the dynamic contact subassembly connected in the closing position is first pushed by the pivot, one set of contact mechanisms is opened in place first, and the other set of contact mechanisms is closed in place again,

[0008] When one set of contact mechanisms cannot be opened, the self-locking piece is driven to move by the dynamic contact subassembly of the other set of contact mechanisms, so that the contact mechanism that cannot be opened is opened, or the self-locking piece is limited by the contact mechanism that cannot be opened, so that the other set of contact mechanisms cannot be closed.

[0009] Preferably, the rotating shaft comprises a driving shaft, two rotating discs are coaxially arranged on the driving shaft, each rotating disc is driven to rotate by the driving shaft, the linkage is connected between one moving contact assembly and one rotating disc, and the driving shaft is provided with two opening pushing parts, the linkage connected to the closed moving contact assembly is pushed by one of the opening pushing parts before the rotating disc at the opening position is driven to rotate by the driving shaft.

[0010] Preferably, the middle part of the driving shaft is provided with a separation part, the two rotating discs are separated by the separation part, the two ends of the driving shaft are respectively connected with the two rotating discs, and the edge of the separation part is outwardly protruded to form the two opening pushing parts.

[0011] Preferably, the middle part of the driving shaft is provided with a strip-shaped boss, the protruding height of the strip-shaped boss is smaller than the protruding height of the separation part, the strip-shaped boss is separated into two driving parts by the separation part, and each driving part is matched with a driving groove arranged on the rotating disc.

[0012] Preferably, each moving contact assembly is further provided with a reset elastic member, the linkage connected to the same moving contact assembly and the reset elastic member form a driving assembly, the driving assembly is switched between the balance position and the dead point position, one of the driving assemblies is switched to the dead point position to make the connected moving contact assembly closed in place, and the other driving assembly is switched to the balance position to make the connected moving contact assembly opened in place.

[0013] Preferably, in the dead point position, the two hinge points of the linkage and the axis of the rotating disc are collinear, in the balance position, the two hinge points of the linkage and the axis of the rotating disc are not collinear, and the axis of the reset elastic member passes through the axis of the rotating disc.

[0014] Preferably, the moving contact assembly comprises a moving contact and a contact support, the moving contact is arranged through the contact support, the contact support is provided with a matching part and a pushing part, the matching part and the pushing part are respectively located on the opposite sides of the contact support, the self-locking member is provided with a locking part corresponding to the matching part, and in the same moving contact assembly, the moving contact, the locking part and the matching part are sequentially arranged at intervals in the first direction.

[0015] Preferably, in the first direction, the maximum distance between the matching parts of the two groups of contact mechanisms is smaller than the distance between the locking parts of the corresponding two groups of contact mechanisms.

[0016] Preferably, the self-locking member comprises a rod-shaped body, the two ends of the rod-shaped body are respectively provided with a locking part, each locking part extends to between the contact support and the moving contact of the adjacent moving contact assembly, and the contact support pushes the locking part when moving to close, so that the self-locking member moves in the first direction.

[0017] Preferably, a contact spring is arranged between the movable contact and the contact support, and the contact spring is elastically deformed in the first direction when the movable contact and the contact support move relative to each other.

[0018] Preferably, in the second direction, at least one side of the movable contact assembly is provided with an energy storage structure, and the energy storage structure comprises a rotationally assembled energy storage member provided with a locking portion and an unlocking portion. During the closing movement of the movable contact assembly, the movable contact first limits and stops the closing movement with the locking portion, the contact support continues to move to close, the pushing portion pushes the unlocking portion to make the energy storage member rotate to unlock, and the movable contact is driven by the contact spring after being unlocked with the locking portion. The second direction is perpendicular to the first direction.

[0019] Preferably, the energy storage structure is further provided with a reset spring, the reset spring is coaxially assembled with the energy storage member, and the two ends of the reset spring are elastically abutted with the energy storage member and the shell, or the reset spring is arranged side by side with the energy storage member in the second direction, one end of the reset spring is connected with the energy storage member, and the other end of the reset spring is connected to the shell.

[0020] Preferably, the energy storage structure further comprises a bracket, the bracket comprises a containing cavity facing the contact mechanism, and the energy storage member is rotationally assembled in the containing cavity.

[0021] Preferably, each group of contact mechanisms is further provided with an arc extinguishing system, the arc extinguishing system comprises an arc extinguishing chamber, and in the second direction, the arc extinguishing chamber and the energy storage structure are respectively located on opposite sides of the same contact mechanism.

[0022] Preferably, the control pole is further provided with a control pole arranged side by side with the switch pole in the third direction, the control pole comprises a motor and a gear set, the gear set is drivingly connected between the output shaft of the motor and the rotating shaft, and the third direction is perpendicular to the first direction.

[0023] Preferably, the control pole further comprises a circuit board and a driven time delay member, the micro switch is connected to the circuit board, and the driven time delay member is rotationally assembled and driven to rotate by one gear of the gear set, and the micro switch is triggered by the driven time delay member.

[0024] Preferably, the switch pole further comprises an incoming line terminal and an outgoing line terminal, and each group of contact mechanisms is connected between one incoming line terminal and one outgoing line terminal.

[0025] Preferably, the two groups of contact mechanisms are commonly connected to the same outgoing line terminal.

[0026] The switch, the rotation shaft drives the linkage member of the closed position first when rotating, so that the two sets of contact mechanisms are opened to the position earlier than closed to the position, and when one set of contact mechanisms cannot be opened, the self-locking member is forced to open or another set of contact mechanisms cannot be closed, so that the two sets of contact mechanisms cannot be closed at the same time, and the use safety is improved.

[0027] In addition, the rotation shaft adopts a split structure, the opening push part on the driving shaft is matched with the linkage member, so that one set of contact mechanisms is opened first and another set of contact mechanisms is closed later, and the use safety is reliably ensured.

[0028] In addition, the contact mechanism is provided with an energy storage structure, the closing speed of the contact mechanism is improved, and the service life of the contact mechanism is improved.

[0029] In addition, the energy storage structure only includes an energy storage member and a reset spring, has the advantages of simple structure, stable cooperation and low cost, and in addition, the energy storage structure can form a modular structure through the support, and assembly is facilitated.

[0030] In addition, the arc extinguishing chamber and the energy storage structure are arranged on opposite sides of the contact mechanism, so that mutual interference between the arc extinguishing chamber and the energy storage structure is avoided.

[0031] In addition, the control pole is provided with a driven time delay member, the microswitch is triggered by the driven time delay member, the signal feedback is earlier than the state switching of the contact mechanism, the feedback signal of the control pole is matched with the actual state, and the accuracy of the signal feedback is improved.

[0032] In addition, the two sets of contact mechanisms share one outgoing terminal, so that the cost is reduced and the size is reduced. ACCURACY

[0033] Figure 1 is a schematic view of the switch in the utility model;

[0034] Figure 2 is a structure schematic view of the switch pole of the first embodiment in the utility model;

[0035] Figure 3 is a structure schematic view (remove the shell) of the switch pole of the first embodiment in the utility model;

[0036] Figure 4 is a cooperation schematic view of the rotating disc, the driving shaft and the moving contact assembly of the first embodiment in the utility model;

[0037] Figure 5 is a structure schematic view of the contact mechanism and the rotation shaft of the first embodiment in the utility model;

[0038] Figure 6 is an exploded schematic view of the rotation shaft of the first embodiment in the utility model;

[0039] Figure 7 is a structural schematic view of the driving shaft of the first embodiment of the utility model;

[0040] Figure 8 is a structural schematic view of the rotating disc of the first embodiment of the utility model;

[0041] Figure 9 is a structural schematic view of the rotating disc of the first embodiment of the utility model;

[0042] Figure 10 is a structural schematic view of the linkage of the first embodiment of the utility model;

[0043] Figure 11 is a structural schematic view of the switch pole of the second embodiment of the utility model;

[0044] Figure 12 is a cooperation schematic view of the contact mechanism, the energy storage structure and the self-locking piece of the second embodiment of the utility model;

[0045] Figure 13 is a first structural schematic view of the energy storage structure of the second embodiment of the utility model;

[0046] Figure 14 is a second structural schematic view of the energy storage structure of the second embodiment of the utility model;

[0047] Figure 15 is an exploded schematic view of Figure 14 ;

[0048] Figure 16 is a structural schematic view of the energy storage piece of the second embodiment of the utility model;

[0049] Figure 17 is a structural schematic view of the movable contact assembly of the utility model;

[0050] Figure 18 is a structural schematic view of the contact support, the contact spring and the reset elastic piece of the utility model;

[0051] Figure 19 is a structural schematic view of the contact support of the utility model;

[0052] Figure 20 is a structural schematic view of the movable contact bridge of the utility model;

[0053] Figure 21 is a structural schematic view of the self-locking piece of the utility model;

[0054] Figure 22 is a structural schematic view of the control pole of the utility model;

[0055] Figure 23 is a structural schematic view of the micro switch in the utility model;

[0056] Figure 24 is a cooperation schematic view of the driving gear and the driven time delay piece in the utility model;

[0057] Figure 25 is a structural schematic view of the driven time delay piece in the utility model Figure 1 ;

[0058] Figure 26 is a structural schematic view of the driven time delay piece in the utility model Figure 2 ;

[0059] Figure 27 is a structural schematic view of the driving gear in the utility model.

[0060] Reference signs:

[0061] 1 - shell, 11 - limit part, 2 - switch pole, 20 - terminal, 21 - rotating shaft, 211 - driving shaft, 2110 - separation part, 2111 - driving part, 2112 - separation pushing part, 212 - rotating disc, 2120 - central hole, 2121 - driving groove, 2122 - closing part, 2123 - connecting part, 2124 - connecting hole, 2125 - stop part, 22 - moving contact assembly, 221 - contact support, 2210 - installation cavity, 2211 - hinged part, 2212 - cooperation part, 2213 - partition, 2214 - insertion part, 2215 - baffle, 2216 - pushing part, 222 - moving contact, 2220 - moving contact bridge, 2221 - moving contact point, 2222 - clamping part, 223 - contact spring, 23 - static contact, 231 - static contact plate, 232 - static contact point, 24 - linkage, 25 - reset elastic piece, 26 - energy storage structure, 261 - support, 2610 - containing cavity, 2611 - positioning groove, 262 - energy storage piece, 2621 - locking part, 2622 - unlocking part, 2623 - positioning part, 263 - reset spring, 264 - installation shaft, 27 - self-locking piece, 271 - interlocking part, 28 - arc extinguishing chamber, 3 - control pole, 31 - motor, 32 - gear set, 321 - driving gear, 3211 - gear part, 3212 - round shaft part, 322 - driving plate, 33 - driven time delay piece, 330 - circular ring body, 3301 - central hole, 3302 - arc convex edge, 331 - push plate, 332 - time delay track groove, 34 - circuit board, 341 - hollow groove, 35 - micro switch. DETAILED DESCRIPTION

[0062] The following embodiments are further illustrated by the accompanying drawings, and the specific implementation of the change-over switch of the utility model is further described. The change-over switch of the utility model is not limited to the description of the following embodiments.

[0063] As shown in Figures 1-3 , 11 and 22, the switch includes a housing 1, a control pole 3 and at least one switch pole 2 are arranged in the housing 1, usually, the number of switch poles 2 is two, the control pole 3 includes a circuit board 34, a motor 31 and a gear set 32, the controller is arranged on the circuit board 34, the motor 31 is connected to the circuit board 34 and starts or stops according to the control signal output by the controller, the gear set 32 is connected to the output shaft of the motor 31; each switch pole 2 includes a terminal 20, a rotating shaft 21 and two sets of contact mechanisms, the terminal 20 is divided into an incoming terminal and an outgoing terminal, the rotating shaft 21 is rotatably arranged between the two sets of contact mechanisms, the rotating shaft 21 drives one set of contact mechanisms to close, and the other set of contact mechanisms to open, each set of contact mechanisms is connected between an incoming terminal and an outgoing terminal, so that each set of contact mechanisms is connected with the external power supply through the terminal 20, that is, one set of contact mechanisms is connected with the normal power supply through the terminal 20 connected thereto, and the other set of contact mechanisms is connected with the standby power supply through the terminal 20 connected thereto.

[0064] Each set of contact mechanisms includes a set of spaced-apart moving contact assemblies 22 and a set of static contacts, the set of static contacts includes two spaced-apart static contacts 23, a linkage 24 is connected between each set of moving contact assemblies 22 and the rotating shaft 21, the linkage 24 drives the moving contact assemblies 22 to move linearly for cooperation with the corresponding set of static contacts, the moving contact assembly 22 includes a contact support 221 and a moving contact 222, the contact support 221 is connected with the rotating shaft 21 through the linkage 24, the moving contact 222 is arranged through the contact support 221, so that the two ends of the moving contact 222 extend out of the contact support 221 respectively, the two ends of the moving contact 222 are respectively provided with a moving contact portion, each moving contact portion cooperates with a static contact 23, a contact spring 223 is arranged between the contact support 221 and the moving contact 222, when the contact support 221 and the moving contact 222 move relatively, the contact spring 223 is pressed to be elastically deformed.

[0065] For convenience of description, the moving direction of the moving contact assembly 22 is the first direction, that is Figure 2 , 11 , the upward and downward direction in the above is the first direction, the two sets of contact mechanisms are spaced apart in the first direction, the two directions perpendicular to the first direction are the second direction and the third direction, the incoming terminal and the outgoing terminal are spaced apart in the second direction, and the two static contacts 23 in the same set of static contacts are also spaced apart in the second direction, that is Figure 2 , 11 , the left and right direction in the above is the second direction, and the third direction is perpendicular to the first direction and the second direction, Figure 2 , 11In the embodiment, the third direction is a direction perpendicular to the paper, the two adjacent switch poles 2 are arranged side by side in the third direction, and the control pole 3 is arranged side by side with the switch poles 2 in the third direction.

[0066] The improvement of the present application is that the switch pole 2 further comprises self-locking members 27 matched with the two movable contact assembly 22 respectively, the self-locking members 27 are driven by the movable contact assembly 22 to slide along the first direction and the shell 1, the rotation shaft 21, the linkage member 24 connected to the movable contact assembly 22 in the closed position is first pushed by the rotation shaft 21, so that one set of contact mechanism is first opened to position, and the other set of contact mechanism is then closed to position, when one set of contact mechanism cannot be opened, the self-locking member 27 is driven by the movable contact assembly 22 of the other set of contact mechanism to move, so that the contact mechanism which cannot be opened is opened, or the self-locking member 27 is limited by the contact mechanism which cannot be opened, so that the other set of contact mechanism cannot be closed.

[0067] In this way, when the rotation shaft 21 rotates, the linkage member 24 in the closed position is first driven, so that two sets of contact mechanisms are opened to position earlier than closed to position, and then the self-locking member 27 is forced to open when one set of contact mechanism cannot be opened, or the self-locking member 27 cooperates to limit the other set of contact mechanism to be closed, so as to ensure that two sets of contact mechanisms cannot be closed at the same time, and the safety is improved.

[0068] Specifically, the movable contact assembly 22 of the two sets of contact mechanisms is driven by the same rotation shaft 21, the rotation shaft 21 adopts a split structure, the rotation shaft 21 comprises a driving shaft 211, the driving shaft 211 is driven to rotate by the gear set 32 in the control pole 3, the rotation axis of the driving shaft 211 is parallel to the third direction, two coaxial rotating discs 212 are assembled on the driving shaft 211, each rotating disc 212 is driven to rotate by the driving shaft 211, one of the rotating discs 212 is driven to rotate to close during the rotation of the driving shaft 211, and the other rotating disc 212 is driven to rotate to open, each rotating disc 212 drives the movable contact assembly 22 to move linearly towards or away from the static contact group through a linkage member 24, so as to realize the opening and closing of the contact mechanism.

[0069] Further, as shown in Figures 2-7 The driving shaft 211 is provided with two opening pushing parts 2112, during the rotation of the driving shaft 211, the linkage member 24 connected to the movable contact assembly 22 in the closed position is pushed by one of the opening pushing parts 2112, the linkage member 24 and the driving shaft 211 jointly drive the connected rotating disc 212 to rotate to the opening direction, thereby, the rotating disc 212 which rotates to open among the two rotating discs 212 is driven earlier than the rotating disc 212 which rotates to close, so as to realize that one set of contact mechanism is opened first, and the other set of contact mechanism is closed later.

[0070] Further, the reset elastic member 25 is connected to each group of moving contact assemblies 22, and the linkage member 24 and the reset elastic member 25 connected to the same moving contact assembly 22 can cooperate to form a group of driving assemblies, each group of driving assemblies can be switched between the balance position and the dead point position, when a group of driving assemblies is switched to the dead point position, the connected moving contact assembly 22 is closed to the position, when the driving assembly is in the dead point position, the other group of driving assemblies is switched to the balance position, and the connected moving contact assembly 22 is opened to the position.

[0071] Further, when each group of moving contact assemblies 22 is connected with a group of driving assemblies, the driving shaft 211 can also not be provided with the opening pushing part 2112, at this time, the two rotating discs 212 are driven by each other, and the opening and closing of the contact mechanism can also be realized by cooperating with the driving assemblies connected thereto.

[0072] Specifically, the rotating shaft 21 is rotated, one rotating disc 212 is closed and rotated, and the other rotating disc 212 is opened and rotated, and the closing movement of one group of driving assemblies is driven by the connected one rotating disc 212 and the driving shaft 211, and the opening movement of the other group of driving assemblies is driven by the connected other rotating disc 212 and the rotating disc 212 which is closed and rotated, so that one group of contact mechanisms is opened to the position first, and the other group of contact mechanisms is closed to the position later.

[0073] Of course, the opening to the position of one group of contact mechanisms first and the closing to the position of the other group of contact mechanisms later can also be realized by other ways, for example, the two rotating discs 212 connected with each other and driven are formed as an integrated structure of the rotating shaft 21, at this time, the rotating shaft 21 cooperates with the two groups of driving assemblies, which can also be realized.

[0074] Preferably, as shown in Figs. Figure 2 , 3 and 11-13, the contact support 221 is provided with the cooperation part 2212 and the pushing part 2216, and in the second direction, the cooperation part 2212 and the pushing part 2216 correspond to the opposite sides of the contact support 221, the self-locking member 27 is provided with the interlocking part 271 corresponding to the cooperation part 2212, the number of the cooperation part 2212 on the contact support 221 corresponds to the linkage part one by one, in the first direction, the cooperation part 2212 is spaced from the moving contact 222, and the interlocking part 271 is located between the moving contact 222 and the cooperation part 2212, preferably, the two ends of the self-locking member 27 are provided with one interlocking part 271, and each contact support 221 is provided with at least one cooperation part 2212, preferably, the cooperation part 2212 and the pushing part 2216 are arranged on the edge of the contact support 221, and in the first direction, in the same moving contact assembly 22, the moving contact 222, the interlocking part 271 and the cooperation part 2212 are sequentially arranged in the first direction.

[0075] Specifically, when the distance from the stationary contact group to the rotating shaft 21 is greater than the distance from the moving contact assembly 22 to the rotating shaft 21, that is, when each moving contact assembly 22 moves linearly between the rotating shaft 21 and the stationary contact group, the distance between the interlocking parts 271 of the two sets of contact mechanisms on the self-locking member 27 is greater than the maximum distance between the mating parts 2212 on the two sets of contact mechanisms (the distance between the two mating parts 2212 is the maximum distance when the two sets of contact mechanisms are closed simultaneously). In other words, the mating parts 2212 of the two contact supports 221... The maximum distance between them is less than the distance between the two interlocking parts 271 of the self-locking member 27; when the distance from the stationary contact group to the rotating shaft 21 is less than the distance from the moving contact assembly 22 to the rotating shaft 21, that is, each moving contact assembly 22 moves in a straight line on the side of the stationary contact group away from the rotating shaft 21, the distance between the two interlocking parts 271 of the self-locking member 27 is greater than the minimum distance between the mating parts 2212 of the two contact supports 221 (when the two sets of contact mechanisms are closed at the same time, the distance between the two mating parts 2212 is the minimum distance).

[0076] Preferred, such as Figure 11 , 12 As shown in Figures 14 and 15, in the second direction, at least one side of a set of moving contact assemblies 22 is provided with an energy storage structure 26. The energy storage structure 26 includes a rotatably mounted energy storage element 262. Specifically, the energy storage element 262 is provided with a locking part 2621 and an unlocking part 2622. During the closing movement of the moving contact assembly 22, the moving contact 222 is first limited and locked with the locking part 2621 of the energy storage element 262 and stops the closing movement. The contact support 221 continues to close and triggers the energy storage element 262 to unlock and rotate. That is, at the contact... The pusher 2216 of the support 221 pushes the unlocking part 2622 of the energy storage component 262, causing the energy storage component 262 to unlock and rotate. The energy storage component 262 deforms between the contact support 221, which continues to move in closing motion, and the moving contact 222, which stops moving motion. The moving contact assembly 22, which is unlocked from the energy storage component 262, is driven by the contact spring 223 to quickly close into position. This allows the moving contact 222 to be quickly driven to close after unlocking from the energy storage component 262, improving the closing speed of the contact mechanism and thus extending the service life of the contact mechanism.

[0077] Furthermore, the energy storage device 262 is also equipped with a return spring 263, which drives the energy storage device 262 to reset by the elastic deformation of the return spring 263. The return spring 263 can be a torsion spring that is coaxially and rotatably assembled with the energy storage device 262. One end of the return spring 263 elastically abuts against the energy storage device 262, and the other end is connected to the inner shell 1. Alternatively, the return spring 263 can be a spring segment. In the second direction, the return spring 263 and the energy storage device 262 are arranged side by side, and the two ends of the return spring 263 are elastically connected to the energy storage device 262 and the shell 1, respectively. Preferably, when the return spring 263 is a spring, its elastic deformation direction is parallel to the second direction.

[0078] Further, the energy storage structure 26 further comprises a support 261, the support 261 comprises an accommodating cavity 2610 which is open to the contact mechanism, and the energy storage member 262 is rotatably arranged in the accommodating cavity 2610, so that the energy storage structure 26 forms a modular structure, facilitating assembly in the shell 1.

[0079] As shown in Figure 22 , the circuit board 34 of the control pole 3 is further provided with a micro switch 35, the micro switch 35 is used for feedback of state switching of the two groups of contact mechanisms, a driven time delay member 33 is rotatably arranged in the control pole 3, and the driven time delay member 33 is driven by one gear of the gear set 32, so that the driven time delay member 33 triggers the micro switch 35 after the two groups of contact mechanisms switch the state of opening and closing, avoiding that the signal feedback is earlier than the state switching of the contact mechanism, and improving the accuracy of the signal feedback.

[0080] Specifically, one gear of the gear set 32 and the driven member are provided with a time delay structure, the time delay structure comprises a driving plate 322 and a time delay track groove 332, the driving plate 322 slides through the time delay track groove 332, and the driven time delay member 33 is driven to rotate by cooperation of the driving plate 322 and two ends of the time delay track groove 332, and a time delay space for movement of the driving plate 322 is reserved between the two ends of the time delay track groove 332; or the time delay structure comprises a driving plate 322 and two time delay bosses, the driving plate 322 moves between the two time delay bosses, and the driving plate 322 cooperates with one of the time delay bosses each time to drive the driven time delay member 33 to rotate, and a time delay space for movement of the driving plate 322 is reserved between the two time delay bosses, the time delay space corresponds to an idling period of the motor 31; when the driving plate 322 is arranged on the gear, the driven time delay member 33 is correspondingly provided with the time delay track groove 332 or the time delay boss, and when the driving plate 322 is arranged on the driven time delay member 33, the gear is correspondingly provided with the time delay track groove 332 or the time delay boss.

[0081] The first embodiment of the change-over switch is provided in combination Figures 1-10 , 17-27.

[0082] As shown in Figures 1-3 , the change-over switch comprises a shell 1, at least one switch pole 2 is arranged in the shell 1, and a wiring terminal 20 is arranged in each switch pole 2, the wiring terminal 20 is divided into an incoming terminal and an outgoing terminal, the incoming terminal and the outgoing terminal are spaced apart and opposite in a second direction, and usually, the incoming terminal and the outgoing terminal are arranged in pairs.

[0083] As shown in Figures 1-3As shown, each switch pole 2 includes two sets of contact mechanisms spaced apart in a first direction. A rotating shaft 21 is rotatably connected between the two contact mechanisms. Each set of contact mechanisms includes a moving contact assembly 22 and a stationary contact group spaced apart and opposite each other in the first direction. The moving contact assembly 22 is linked to the rotating shaft 21 through a linkage 24. The rotating shaft 21 drives the moving contact assembly 22 to move along the first direction to cooperate with the stationary contact group. The stationary contact group includes two stationary contacts 23 spaced apart in a second direction. In the same contact mechanism, the distance between each stationary contact 23 and the rotating shaft 21 is greater than the distance between the moving contact assembly 22 and the rotating shaft 21. The moving contact assembly 22 moves linearly between the rotating shaft 21 and the stationary contact group. In this embodiment, the two sets of moving contact assemblies 22 are simultaneously driven by the rotating shaft 21 to move along the first direction, but the two sets of contact mechanisms cannot be connected at the same time. That is, one set of moving contact assemblies 22 is in contact with one set of stationary contacts, and the other set of moving contact assemblies 22 is separated from the other set of stationary contacts.

[0084] like Figures 1-3 As shown in Figures 17-20, the moving contact assembly 22 includes a contact support 221, which is linked to the rotating shaft 21 via a linkage 24. The hinge points of the two linkages 24 and the rotating shaft 21, as well as the axis of the rotating shaft 21, are not collinear. The middle of the contact support 221 is provided with a mounting cavity 2210, in which a moving contact 222 is disposed through. Both ends of the moving contact 222 are provided with moving contact portions and extend beyond the mounting cavity 2210. The stationary contact assembly includes two stationary contacts 23 spaced apart in a second direction. Each stationary contact 23 is provided with a stationary contact portion spaced apart from the moving contact portion. When the rotating shaft 21 drives the two moving contact assemblies 22 to move, in the same contact mechanism, the two moving contact portions of the moving contact 222 respectively contact or separate from the stationary contact portions of the two stationary contacts 23.

[0085] In this embodiment, as Figure 4 , 17As shown in Figure -20, each moving contact 222 includes at least two moving contact bridges 2220. Two adjacent moving contact bridges 2220 are arranged side by side in a third direction. Each moving contact bridge 2220 is disposed through the mounting cavity 2210 in a second direction. Each moving contact bridge 2220 has a moving contact point 2221 at each end. The same end of all moving contact bridges 2220 on the same contact support 221 forms the moving contact portion of the moving contact 222. At this time, each moving contact portion has at least two moving contact points 2221. Correspondingly, the stationary contact 2 The stationary contact portion of 3 is provided with a stationary contact 232 that cooperates with the moving contact 2221. The number of stationary contacts 232 can be one or correspond to the number of moving contacts 2221. In this embodiment, the moving contact 2221 and the stationary contact 232 are spaced apart and opposite each other in the first direction. This structure increases the number of contacts between the moving contact assembly 22 and the stationary contact group, avoids setting two adjacent moving contact bridges 2220 at intervals in the moving direction of the moving contact assembly 22, and saves the space occupied by the moving contact assembly 22 in the housing 1.

[0086] In this embodiment, as Figure 4 , 17 As shown in Figure -20, each contact support 221 has two moving contact bridges 2220 arranged side-by-side within its mounting cavity 2210. A partition 2213 is provided within the mounting cavity 2210, dividing it into two parallel contact cavities in a third-order direction. Each contact cavity contains one moving contact bridge 2220, which extends through the cavity, allowing the two moving contacts 2221 of each bridge to extend outside. Adjacent moving contact bridges 2220 are separated by the partition 2213, ensuring safety during use. Preferably, a locking structure is provided between the contact support 221 and the moving contact bridge 2220. Figure 20 In this design, a snap-fit ​​portion 2222 is provided on the edge of the movable contact bridge 2220, so that the movable contact bridge 2220 is snapped and limited by the snap-fit ​​portion 2222, thereby restricting the relative movement of the movable contact bridge 2220 and the contact support 221 in the second direction, and ensuring the assembly stability of the movable contact bridge 2220 and the contact support 221.

[0087] Furthermore, such as Figure 17 , 18 As shown, each contact cavity is equipped with a contact spring 223. Each contact spring 223 is located on the side of the moving contact bridge 2220 opposite to the stationary contact 23. When the contact support 221 and the moving contact bridge 2220 are relatively displaced in the first direction, the contact spring 223 is pressed and deformed. By setting the contact spring 223, the contact pressure between each moving contact bridge 2220 and the stationary contact 23 can be guaranteed. In the figure, each contact spring 223 is a spring segment.

[0088] CombinationFigures 17-20 A moving contact assembly 22 is provided in the embodiment.

[0089] As Figures 17-19 shown, the contact support 221 includes a block-shaped support body, a through slot serving as a mounting cavity 2210 is formed in the middle of the support body, the two side edges of the mounting cavity 2210 respectively extend outward along the second direction to form a protruding matching part 2212 and a pushing part 2216, and the matching part 2212 and the pushing part 2216 are respectively located on opposite sides of the support body, a partition 2213 is arranged in the mounting cavity 2210, and the mounting cavity 2210 is divided into two relatively independent contact cavities by the partition 2213; one end of the support body is provided with a hinged part 2211, a driving hole for hinging with the linkage 24 is arranged in the middle of the hinged part 2211, and the other end of the support body is provided with a pair of spaced apart baffles 2215, and the support body between the pair of baffles 2215 is provided with a protruding plug-in part 2214, which can be used to connect the reset elastic member 25, so that the reset elastic member 25 and the linkage 24 together form a driving assembly connected to the moving contact assembly 22.

[0090] As Figure 17 , 20 shown, each moving contact bridge 2220 includes a strip-shaped contact bridge body, when the moving contact bridge 220 is arranged through the mounting cavity 2210 along the second direction, the moving contact bridge 2220 is spaced apart from the matching part 2212 in the first direction, and the two ends of the moving contact bridge 2220 extend out of the contact support 221 in the second direction, the two ends of the contact bridge body are respectively provided with a moving contact point 2221, and the moving contact points 2221 are located on the same side plate surface of the contact bridge body, and each contact spring 223 is connected to the middle of the contact bridge body; the edge of each moving contact bridge 2220 is outwardly provided with a clamping part 2222, preferably, the clamping parts 2222 are arranged in pairs in the middle of the same side of the moving contact bridge 2220, that is, the two clamping parts 2222 on the same side are arranged in the second direction, and the two clamping parts 2222 are spaced apart in the second direction, so that each clamping part 2222 is used for clamping connection with the edge of the contact support 221.

[0091] In the embodiment, the stationary contact 23 can adopt the prior art, generally, the stationary contact 23 includes a stationary contact plate 231, preferably, as Figures 1-3 shown, the stationary contact plate 231 is arranged along the corners in the shell 1, so as to reduce the space occupied by the stationary contact plate 231, Figure 2In the embodiment, one end of the static contact plate 231 is arranged in the second direction, and the one end of the static contact plate 231 is provided with two static contact points 232 arranged side by side in the third direction, each static contact point 232 is spaced opposite to one moving contact point 2221 in the first direction, and the middle part of the static contact plate 231 can be bent and extended so that the other end of the static contact plate 231 is close to the adjacent line terminal 20. Of course, the contact mechanism in the switch can also adopt the prior art.

[0092] In the embodiment, the two groups of contact mechanisms share one outgoing terminal, that is, one static contact 23 in each group of contact mechanisms is connected to two different incoming terminals, and the static contacts 23 in the other group of contact mechanisms are commonly connected to the same outgoing terminal; each group of contact mechanisms is further provided with an arc extinguishing system for extinguishing the arc generated when the contact mechanism is broken, and the arc extinguishing system includes an arc extinguishing chamber 28 arranged side by side with the contact mechanism in the second direction, and the two arc extinguishing chambers 28 are located on the same side of the two contact mechanisms. Each arc extinguishing chamber 28 can adopt the existing structure, and each moving contact part moves at the arc inlet of one arc extinguishing chamber 28, so that the arc generated by the moving contact part and the static contact 23 is introduced into the arc extinguishing chamber 28 from the arc inlet.

[0093] As shown in Figures 1-10 , the rotating shaft 21 includes a driving shaft 211, and two rotating discs 212 are coaxially arranged on the driving shaft 211, each rotating disc 212 is driven by the driving shaft 211, and each rotating disc 212 is connected to the contact support 221 of the moving contact assembly 22 through a linkage 24. When the rotating shaft 21 rotates, the rotation of the driving shaft 211 drives one rotating disc 212 to rotate in the opening direction and drives the other rotating disc 212 to rotate in the closing direction. The middle part of the driving shaft 211 is further provided with two opening pushing parts 2112, each opening pushing part 2112 cooperates with two linkages 24. When the driving shaft 211 rotates, one of the opening pushing parts 2112 first pushes one linkage 24, and the linkage 24 and the driving shaft 211 jointly drive one rotating disc 212 to rotate in the opening direction. Subsequently, the driving shaft 211 drives the other rotating disc 212 to rotate in the closing direction, thereby realizing that one of the two groups of contact mechanisms opens first and the other closes later.

[0094] Further, as shown in Figures 1-5 , 17 and 18, each group of contact mechanisms is further provided with a reset elastic member 25 connected to each contact support 221. Preferably, the reset elastic member 25 is connected to the contact support 221. In the embodiment, the reset elastic member 25 is a spring, and the reset elastic member 25 and the linkage 24 can cooperate to form a driving assembly for driving the moving contact assembly 22. Each driving assembly can be switched between a dead point position and a balance position. When one group of driving assemblies is in the dead point position, the other group of driving assemblies is in the balance position.

[0095] In this embodiment, when the drive assembly is in the dead position, the two hinge points of the linkage 24 and the axis of the rotating disk 212 are collinear, and the axis of the linkage 24 and the axis of the reset elastic member 25 are almost on the same straight line. When the drive assembly is in the equilibrium position, the two hinge points of the linkage 24 and the axis of the rotating disk 212 are not collinear, and the axis of the linkage 24 and the axis of the reset elastic member 25 are set at an angle. Preferably, when the contact mechanism is in the closed position, the drive assembly connected to the moving contact assembly 22 in the closed position is in the dead position, which is beneficial to keep the contact mechanism in the closed position. When the contact mechanism is in the open position, the drive assembly connected to the moving contact assembly 22 in the open position is in the equilibrium position.

[0096] Combination Figures 1-9 A structure for the rotating shaft 21 used in this embodiment is provided.

[0097] like Figures 6-9 As shown, the rotating shaft 21 includes a drive shaft 211 and two rotating disks 212. The drive shaft 211 is cylindrical in shape, with a strip-shaped boss protruding from its circumferential sidewall. A disc-shaped partition 2110 protrudes radially from the middle of the drive shaft 211, making the drive shaft 211 a stepped shaft that is thicker in the middle and thinner at both ends. The partition 2110 divides the strip-shaped boss into two drive sections 2111. Figure 6 , 7 In this configuration, the protrusion height of the strip-shaped boss is less than the protrusion height of the partition 2110; that is, the protrusion height of each drive part 2111 is less than the protrusion height of the partition 2110. Two bosses, serving as tripping push parts 2112, protrude outwards from the two sides of the partition 2110, and the two tripping push parts 2112 are symmetrically distributed on both sides of the strip-shaped boss along the circumferential direction of the partition 2110. Figure 7 In the circuit, each tripping push unit 2112 includes a straight sidewall and an arc-shaped wall. The straight sidewall of each tripping push unit 2112 faces one end of the linkage member 24 and drives the linkage member 24 by the straight sidewall of the tripping push unit 2112. The arc-shaped wall of each tripping push unit 2112 faces the drive unit 2111.

[0098] like Figures 4-6As shown in Figures 7-9, each rotating disk 212 is generally circular. A central hole 2120, penetrating both sides, is formed in the middle of the end face of the rotating disk 212. The two ends of the drive shaft 211 pass through the central holes 2120 of the two rotating disks 212 respectively. Of course, the central holes 2120 of the rotating disk 212 may not penetrate the rotating disk 212, in which case one end of the drive shaft 211 is inserted into the central hole 2120. An arc groove is also formed on the end face of the rotating disk 212, which serves as the drive groove 2121. In this embodiment, the drive groove 2121 is located on one side wall of the central hole 2120, so that the side with the smaller diameter of the drive groove 2121 is connected to the central hole 2120. The drive groove 2121, the central hole 2120, and the rotating disk 212 are concentric. The two opposite ends of the drive groove 2121 serve as the closing part 2122 and the stop part 2125, respectively. A drive part 2111 on the drive shaft 211 is located in the drive groove 2121. The drive part 2111 cooperates with the closing part 2122 to drive the rotating disk to perform closing rotation. The drive part 2111 can move between the closing part 2122 and the stop part 2125. The central angle of the drive part 2111 is smaller than the central angle of the drive groove 2121. That is, when the drive part 2111 abuts against the closing part 2122, there is a gap between the drive part 2111 and the stop part 2125.

[0099] like Figure 8 As shown, the circumferential sidewall of the rotating disk 212 protrudes outward to form a connecting portion 2123. The connecting portion 2123 is located on the side away from the drive groove 2121 and is located closer to the stop portion 2125. The connecting portion 2123 has a strip-shaped connecting hole 2124. The through direction of the strip-shaped hole is parallel to the through direction of the central hole 2120. One end of the linkage 24 passes through the connecting hole 2124 and can slide in the connecting hole 2124. When the two rotating disks 212 are assembled on the drive shaft 211, at least one connecting portion 2123 corresponds to the two opening push portions 2112. In this embodiment, the connecting portion 2123 connected to the moving contact assembly 22 located in the closed position is located between the straight sidewalls of the two opening push portions 2112, and the connecting portion 2123 connected to the moving contact in the open position is located between the arc-shaped walls of the two opening push portions 2112.

[0100] A limiting part 11 is also provided inside the outer casing 1. Figure 2 The middle limiting part 11 is an arc-shaped boss. The limiting part 11 is arranged around the side of the rotating shaft 21 opposite to the connecting part 2123. When the rotating shaft 21 is rotated, each connecting part 2123 can cooperate with the limiting part 11 to stop, thereby limiting the rotation when the rotating disk 212 rotates to the open position.

[0101] In this embodiment, as Figure 10The linkage 24 is a U-shaped rod, one end of the linkage 24 is slidingly inserted into the connecting hole 2124, and the one end of the linkage 24 in the connecting hole 2124 extends to the moving track of the opening pushing part 2112, and the other end is connected with the movable contact assembly 22, that is, the other end of the linkage 24 passes through the driving hole of the contact support 221.

[0102] In combination Figures 2-4 Briefly, the process is,

[0103] In Figure 2 , 3 , the upper contact mechanism is the first contact mechanism, and the lower contact mechanism is the second contact mechanism, Figure 2 , 3 , the first contact mechanism is opened, the second contact mechanism is closed, the movable contact assembly 22 in the first contact mechanism is connected with the first linkage 24, the movable contact assembly 22 in the second contact mechanism is connected with the second linkage 24, the two rotating discs 212 of the rotating shaft 21 are correspondingly divided into the first rotating disc 212 and the second rotating disc 212 according to the connected first linkage 24 and the second linkage 24, the opening pushing part 2112 matched with the first linkage 24 is the first opening pushing part, and the opening pushing part 2112 matched with the second linkage 24 is the second opening pushing part.

[0104] As Figure 2 , 4 , when the driving shaft 211 rotates to switch the state of the two groups of contact mechanisms, the driving shaft 211 rotates, the straight side wall of the second opening pushing part pushes one end of the second linkage 24, thereby the second rotating disc rotates to the opening direction under the drive of the second opening pushing part, thereby driving the movable contact assembly 22 in the second contact mechanism to move to the opening direction, at the same time, the second rotating disc rotates a distance relative to the first rotating disc, until the driving part 2111 moves a distance in the driving groove 2121 of the first rotating disc and cooperates with the closing part 2122 of the first rotating disc, thereby the first rotating disc can be pushed to rotate to the closing direction, the first rotating disc rotating to the closing direction drives the movable contact assembly 22 of the first contact mechanism to move to the closing direction through the first linkage 24, thereby realizing that the second contact mechanism is opened first and the first contact mechanism is closed later, during the closing rotating process of the first rotating disc, the driving part 2111 can move between the stop part 2215 and the closing part 2212 of the second rotating disc.

[0105] After the driving shaft 211 rotates again to switch the state of the two sets of contact mechanisms, the driving shaft 211 rotates, the straight side wall of the first disconnection pushing part pushes one end of the first linkage 24, and thus the first rotating disc 212 rotates to the disconnection direction under the drive of the first disconnection pushing part, thereby driving the movable contact assembly 22 in the first contact mechanism to move to the disconnection direction. At the same time, the first rotating disc rotates a distance relative to the second rotating disc, and the driving part 2111 can cooperate with the closing part 2122 of the second rotating disc 212 after moving a distance in the driving groove 2121 of the second rotating disc 212, so as to drive the second rotating disc 212 to rotate to the closing direction. The second rotating disc 212 rotates to the closing direction drives the movable contact assembly 22 of the second contact mechanism to move to the closing direction through the second linkage 24, so as to realize that the first contact mechanism disconnects first and the second contact mechanism closes later. During the closing rotation of the second rotating disc, the driving part 2111 can move between the stop part 2215 and the closing part 2212 of the first rotating disc.

[0106] As shown in Figure 2 , 3 , 5, 11 and 12, a self-locking part 27 is arranged on the same side of the two sets of contact mechanisms and the rotating shaft 21 in the second direction. In the figure, the self-locking part 27 is located on the same side of the rotating shaft 21 with the arc extinguishing chamber 28. The self-locking part 27 cooperates with the contact support 221 of the two sets of contact mechanisms respectively. The contact support 221 driven by the closing movement drives the self-locking part 27 to move in the first direction in the shell 1 (housing). When one set of contact mechanisms cannot disconnect, the self-locking part 27 is driven by the contact support 221 of the other set of contact mechanisms to disconnect the contact mechanism that cannot disconnect. Alternatively, the self-locking part 27 is limited by the contact mechanism that cannot disconnect, so that the other set of contact mechanisms cannot close.

[0107] In this way, the self-locking part 27 is driven by the contact support 221. In the normal disconnection and closing, it does not interfere with the action of the two sets of contact mechanisms. When one set of contact mechanisms cannot disconnect, the other set of contact mechanisms realizes forced disconnection through the self-locking part 27, so as to ensure that the two sets of contact mechanisms cannot close at the same time, and the use safety is improved. Of course, when one set of contact mechanisms cannot disconnect, the driving force of the rotating shaft 21 is not enough to make the contact mechanism that has been welded to disconnect, and the contact mechanism that cannot disconnect limits the movement of the self-locking part 27, so that the other set of contact mechanisms cannot close, and the two sets of contact mechanisms also cannot close at the same time.

[0108] Specifically, as shown in Figure 2 , 3As shown in Figure 5, in the second direction, the self-locking member 27 is disposed on the same side of the two sets of contact mechanisms and the rotating shaft 21. The contact support 221 is provided with a mating part 2212, and the self-locking member 27 is provided with an interlocking part 271 corresponding to the mating part 2212. Preferably, in terms of number, the mating parts 2212 and the interlocking parts 271 on the contact support 221 correspond one-to-one. In the first direction, the mating parts 2212 and the moving contact 222 are spaced apart and opposite to each other. The interlocking part 271 is located between the moving contact 222 and the mating part 2212. Preferably, an interlocking part 271 is provided at both ends of the self-locking member 27, and at least one mating part 2212 is provided on each contact support 221.

[0109] In the first direction, when the distance from the stationary contact group to the rotating shaft 21 is greater than the distance from the moving contact assembly 22 to the rotating shaft 21, that is, when each moving contact assembly 22 moves linearly between the rotating shaft 21 and the stationary contact group, the distance between the interlocking portions 271 of the two sets of contact mechanisms on the self-locking member 27 is greater than the maximum distance between the mating portions 2212 on the two sets of contact mechanisms (the distance between the two mating portions 212 is the maximum distance when the two sets of contact mechanisms are closed simultaneously), that is, the mating portions 2212 of the two contact supports 221... The maximum distance between them is less than the distance between the two interlocking parts 271 of the self-locking member 27; when the distance from the stationary contact group to the rotating shaft 21 is less than the distance from the moving contact assembly 22 to the rotating shaft 21, that is, each moving contact assembly 22 moves in a straight line on the side of the stationary contact group away from the rotating shaft 21, the distance between the two interlocking parts 271 of the self-locking member 27 is greater than the minimum distance between the mating parts 2212 of the two contact supports 221 (when the two sets of contact mechanisms are closed at the same time, the distance between the two mating parts 2212 is the minimum distance).

[0110] like Figure 2 , 3 As shown in Figures 5 and 21, the self-locking member 27 has two interlocking portions 271 spaced apart and opposite each other in a first direction. Each interlocking portion 271 cooperates with a contact support 221 in a set of moving contact assemblies 22. Preferably, each contact support 221 has a cooperating portion 2212 that cooperates with the interlocking portion 271. In the first direction, each cooperating portion 2212 is spaced apart and opposite to the moving contact bridge 2220. Each interlocking portion 271 is located between the cooperating portion 2212 and the moving contact bridge 2220. In this embodiment, when the two sets of contact mechanisms are closed at the same time, the distance between the cooperating portions 2212 of the two sets of contact mechanisms is the largest in the first direction. When the two sets of contact mechanisms are opened at the same time, the distance between the cooperating portions 2212 of the two sets of contact mechanisms is the smallest in the first direction. The distance between the two interlocking portions 271 of the self-locking member 27 is less than the maximum distance between the cooperating portions 2212 of the two sets of contact mechanisms.

[0111] Specifically, such as Figure 21As shown, the self-locking piece 27 comprises a rod-shaped body, and the two ends of the rod-shaped body are respectively provided with interlocking portions 271. In the figure, each interlocking portion 271 can be considered as a rectangular boss structure protruding at one end of the rod-shaped body, so that the self-locking piece 27 as a whole presents a U-shaped body structure. Each interlocking portion 271 extends to between the contact support 221 and the movable contact 222 of the adjacent movable contact assembly 22. The self-locking piece 27 has a simple structure, a straight moving track, and can reduce the space occupied in the shell 1.

[0112] As shown in the figure, Figures 22-27 The shell 1 is also provided with a control pole 3, and the control pole 3 and the switch pole 2 are arranged side by side in the third direction. Preferably, the control pole 3 and the switch pole 2 are respectively provided with housings, and the switch pole 2 and the control pole 3 are assembled together through the respective housings, so as to form the shell 1 of the change-over switch. Of course, at least one partition plate is arranged in the shell 1, and the space in the shell 1 is divided into at least two assembly spaces arranged side by side in the third direction by the partition plate. One of the assembly spaces is used for assembling the control pole 3, and the remaining assembly spaces are used for assembling the switch pole 2. Alternatively, the control pole 3 and at least one switch pole 2 can also be arranged side by side in the third direction in the shell 1.

[0113] As shown in the figure, Figure 22 The control pole 3 comprises a circuit board 34, a motor 31, a gear set 32, and a driven time-delay piece 33. The circuit board 34 is laid along the inner side wall of the shell 1. The gear set 32 and the driven time-delay piece 33 are respectively rotatably and laminatedly assembled on the circuit board 34. That is, in the third direction, the gear set 32 is laminated on the circuit board 34. The circuit board 34 is provided with micro switches 35 on the side corresponding to the gear set 32. The micro switches 35 are used for feeding back the on-off state of the two sets of contact mechanisms. The number of the micro switches 35 can be two or three. The controller on the circuit board 34 obtains the switch state of the two sets of contact mechanisms according to the state of the micro switches 35. After the driven time-delay piece 33 is driven to rotate by the gear set 32, the driven time-delay piece 33 triggers the button of the micro switch 35. The motor 31 is arranged at a position close to the edge of the shell 1. An avoiding area is arranged at a position corresponding to the motor 31, so as to avoid mutual interference between the motor 31 and the circuit board 34.

[0114] In the embodiment, the gear set 32 and the driven time delay piece 33 are provided with a time delay structure, which comprises a driving plate 322 and a time delay track groove 332, the driving plate 322 slides through the time delay track groove 332, and the driving plate 322 and the two ends of the time delay track groove 332 cooperate to drive the driven time delay piece 33 to rotate, and a time delay space is reserved between the two ends of the time delay track groove 332 for the movement of the driving plate 322; or the time delay structure comprises a driving plate 322 and two time delay bosses, the driving plate 322 moves between the two time delay bosses, the driving plate 322 cooperates with one of the time delay bosses at a time to drive the driven time delay piece 33 to rotate, and a time delay space is reserved between the two time delay bosses for the movement of the driving plate 322, which corresponds to the idling period of the motor 31; when the driving plate 322 is arranged on the gear, the driven time delay piece 33 is correspondingly arranged with the time delay track groove 332 or the time delay boss, and when the driving plate 322 is arranged on the driven time delay piece 33, the gear is correspondingly arranged with the time delay track groove 332 or the time delay boss.

[0115] As shown in Figure 24 , the gear set 32 comprises at least two meshed gears, one of which is used as a driving gear 321 for driving connection with the rotating shaft 21, and the remaining gears are used as transmission gears, one or more than two transmission gears are meshed between the driving gear 321 and the output shaft of the motor 31, the driven time delay piece 33 is rotatably arranged, and the driven time delay piece 33 is directly or indirectly driven to rotate by one of the gears in the gear set 32, the button of the micro switch 35 is triggered by the driven time delay piece 33, preferably, the driven time delay piece 33, the driving gear 321 and the rotating shaft 21 are coaxially rotatably arranged, the driven time delay piece 33 is driven to rotate by the driving gear 321, and the driven time delay piece 33 and the rotating shaft 21 are both driven by the same driving gear 321, which reduces the gear transmission process, improves the accuracy of signal feedback, and saves internal space.

[0116] Specifically, as shown in Figure 24 , 27 , the driving gear 321 is provided with a driving plate 322, the driving plate 322 drives the driven time delay piece 33 to rotate, the driven time delay piece 33 is provided with a push plate 331, the push plate 331 is preferably located at the edge of the driven time delay piece 33, the button of the micro switch 35 is triggered by the push plate 331, the rotation angle of the driving plate 322 is greater than that of the push plate 331, and the movement stroke of the driving plate 322 is greater than that of the push plate 331, so that the rotation of the driven time delay piece 33 lags behind the rotation of the driving gear 321 by forming a stroke difference between the push plate 331 and the driving plate 322.

[0117] Preferably, the driven time-delay piece 33 is provided with a time-delay track groove 332, the driving plate 322 slides through the time-delay track groove 332, and the driving plate 322 can drive the driven time-delay piece 33 to rotate when abutting against two ends of the time-delay track groove 332, and the push plate 331 is correspondingly arranged at the middle part of the time-delay track groove 332, so that the structure is simple, the space occupied is small, and the cooperation is convenient; of course, the driven time-delay piece 33 can also be provided with two time-delay protrusions instead of the time-delay track groove 332, so that the driving plate 322 moves between the two time-delay protrusions, and the driven time-delay piece 33 can be driven to rotate when the driving plate 322 abuts against one time-delay protrusion, and the push plate 331 is still arranged at the edge position of the driven time-delay piece 33 and corresponds to the middle part of the moving track of the driving plate 322, but the cooperation between the time-delay protrusion and the driving plate 322 makes the thickness of the driven time-delay piece and the driving gear 321 stacked to be larger, and the space occupied is more.

[0118] In the embodiment, the gear set 32 includes a driving gear 321 and a plurality of transmission gears, wherein the transmission gears can adopt the prior art, the transmission gears are connected in meshing between the output shaft of the motor 31 and the driving gear 321, the driving gear 321, the driven time-delay piece 33 and the driving shaft 211 of the rotating shaft 21 are coaxially and rotationally arranged, when the output shaft of the motor 31 rotates, the driving gear 321 drives the driving shaft 211 of the rotating shaft 21 to rotate synchronously, and the two groups of contact mechanisms are driven by the rotating shaft 21 to switch the on-off state of the brake, the driving gear 321 is provided with a driving plate 322, the driven time-delay piece 33 is provided with a time-delay track groove 332 for the driving plate 322 to slide through, when the driving gear 321 is driven to rotate, the time-delay track groove 332 provides a rotating space for the driving plate 322, and when the driving plate 322 abuts against two ends of the time-delay track groove 332, the driven time-delay piece 33 can be driven to rotate, thereby realizing the time-delay driving of the driven time-delay piece 33 by the driving gear 321, the driven time-delay piece 33 is provided with a push plate 331 for triggering the micro switch 35, and the push plate 331 is arranged at the edge position of the driven time-delay piece 33 and corresponds to the middle part of the time-delay track groove 332, so that the moving stroke of the push plate 331 is smaller than the moving stroke of the driving plate 322, and the micro switch 35 is avoided from being triggered when the gear set 32 just starts to rotate.

[0119] As shown in Figure 23 , the circuit board 34 is provided with a hollow groove 341, the micro switch 35 is arranged at one side of the hollow groove 341, and the driven time-delay piece 33 is rotationally arranged in the hollow groove 341 of the circuit board 34, further, the circuit board 34 can be further provided with a avoiding area at the position corresponding to the motor 31, so that the performance of the circuit board 34 is avoided from being interfered by the driven time-delay piece 33 and the motor 31 during the operation.

[0120] Combined with Figure 22 , 24-26 A driven time-delay piece 33 used in the present embodiment comprises a circular ring body 330, the through hole of the circular ring body 330 is coaxially arranged with one gear of the gear set 32, that is, the circular ring body 330 is coaxially arranged with the driving gear 321, the partial edge of one end of the circular ring body 330 extends in the axial direction and then protrudes radially outward to form an arc-shaped protruding edge 3302, the arc-shaped protruding edge 3302 semi-surrounds one side of the circular ring body 330 and forms a stepped structure of the driven time-delay piece 33 in the axial direction, the arc-shaped protruding edge 3302 is provided with an arc-shaped time-delay track groove 332, and the time-delay track groove 332 and the through hole of the circular ring body 330 share the same center; the middle edge of the arc-shaped protruding edge 3302 is provided with a push plate 331 for triggering the micro-switch 35, and the push plate 331 extends in the axial direction away from the circular ring body 330.

[0121] In combination Figure 27 A driving gear 321 used in the present embodiment comprises a gear body, the circumferential side wall of the gear body is provided with a gear portion 3211, the axial center of the gear body is respectively protruded in the axial direction to opposite sides to form two circular shaft portions 3212, the two circular shaft portions 3212 are mainly used for supporting the driving gear 321 to rotate, one of the two circular shaft portions 3212 is also used for driving the rotating shaft 21 to rotate and is provided with a square shaft hole for connecting the rotating shaft 21, the other circular shaft portion 3212 is rotatably arranged through the through hole of the driven time-delay piece 33, the edge of the gear body away from the gear portion 3211 is provided with a driving plate 322, the driving plate 322 extends in the axial direction away from the rotating shaft 21 and is used for driving the driven time-delay piece 33, that is, the driving plate 322 slides through the time-delay track groove 332 and drives the driven time-delay piece 33 to rotate through the time-delay track groove 332.

[0122] In combination Figures 11-27 A second embodiment of the change-over switch is provided.

[0123] As Figure 11 shown, the change-over switch comprises a housing 1, at least one switch pole 2 is arranged in the housing 1, the switch pole 2 is provided with a terminal 20, two sets of contact mechanisms and a rotating shaft 21, wherein the terminal 20 and the two sets of contact mechanisms adopt the structure in the first embodiment, and the movable contact assembly 22 of each set of contact mechanisms is connected with the same driving assembly as in the first embodiment, that is, the reset elastic member 25 and the linkage 24 are connected on each contact support 221.

[0124] In the present embodiment, the rotating shaft 21 is rotatably arranged between the two sets of contact mechanisms, the rotation axis of the rotating shaft 21 is parallel to the third direction, the rotating shaft 21 is connected with the hinged portion 2211 of one contact support 221 through the linkage 24, the rotating shaft 21 can be a same body structure, of course, the rotating shaft 21 of the present embodiment preferably adopts the split structure same as in the first embodiment.

[0125] In the embodiment, as shown in Figure 11 , 12 , the same self-locking member 27 and arc extinguishing system as the first embodiment can also be configured in each switching pole 2.

[0126] Unlike the first embodiment, at least one energy storage structure 26 is further configured in the switching pole 2, as shown in Figure 11 , 12 , in the second direction, the energy storage structure 26 is configured on one side of the contact mechanism, in the second direction, the energy storage structure 26 is arranged side by side with the movable contact assembly 22, and the energy storage structure 26 corresponds to the opposite sides of the contact mechanism with the arc extinguishing chamber 28, the energy storage structure 26 includes a rotationally assembled energy storage member 262, the energy storage member 262 is provided with a locking portion 2621 and an unlocking portion 2622, wherein the thickness of the locking portion 2621 in the third direction is greater than the width of one end of the movable contact bridge 2220, when the number of movable contact bridges 2220 is two or more, preferably, the thickness of the locking portion 2621 in the third direction is greater than or equal to the sum of the widths of the same end of all movable contact bridges 2220, which facilitates the cooperation of the locking portion 2621 with all movable contact bridges 2220, increases the cooperation area of the movable contact bridge 2220 and the locking portion 2621, and improves the cooperation stability of the movable contact 222 and the energy storage member 262.

[0127] Specifically, in the first direction, the energy storage member 262 can be rotationally arranged on one side of the contact mechanism, and the contact support 221 continues to move to the closed position to trigger the energy storage member 262 to unlock rotation, or the energy storage member 262 is slidingly arranged on one side of the contact mechanism, and the contact support 221 continues to move to the closed position to trigger the energy storage member to unlock movement.

[0128] During the closing movement of the movable contact assembly 22, the movable contact 222 is first limited and stopped from closing movement by the locking portion 2621 of the energy storage member 262, and the contact support 221 continues to move to the closed position under the drive of the rotating shaft 21, but the edge of the contact support 221 is provided with a pushing portion 2216, which pushes the unlocking portion 2622 to rotate in the unlocking direction, in this process, the relative movement between the movable contact 222 and the contact support 221 causes the elastic deformation of the contact spring 223, and with the closing movement of the contact support 221, the contact support 221 triggers the energy storage member 262 to unlock rotation, so that the movable contact 222 and the energy storage member 262 are released from the limiting lock, and when the movable contact 222 and the energy storage member 262 are separated, the contact spring 223 releases energy to drive the movable contact 222 to move the contact support 221 to the closed position, that is, the movable contact assembly 22 is quickly closed in place.

[0129] In the embodiment, as shown in Figures 11-15As shown, the energy storage structure 26 further comprises a reset spring 263, which drives the energy storage member 262 to reset, that is, when the energy storage member 262 is driven to the unlocking position, the reset spring 263 is pressed to store energy, that is, when the contact mechanism is closed to the position, the reset spring 263 is in the energy storage state, when the energy storage member 262 is separated from the contact support 221, that is, during the opening movement of the movable contact assembly 22, when the contact support 221 is separated from the energy storage member 262, the reset spring 263 releases energy to drive the energy storage member 262 to reset. The reset spring 263 can be a torsion spring coaxially rotating with the energy storage member 262, or a section of spring connected to the energy storage member 262. Further, the energy storage member 262 is further provided with a bracket 261, and the energy storage member 262 is rotatingly assembled on the bracket 261, so that the energy storage member 262 and the bracket 261 can form a modular structure, facilitating the overall assembly of the energy storage structure 26 on one side of the movable contact assembly 22.

[0130] In addition, as shown in Figure 16 The energy storage member 262 is further provided with at least one positioning portion 2623, which cooperates with the bracket 261 to limit the rotation range of the energy storage member 262. Generally, the positioning portion 2623 can be arranged on the side of the energy storage member 262 opposite to the movable contact assembly 22. Of course, the positioning portion 2623 can also be arranged at other positions of the energy storage member 262 to limit the swing amplitude. In addition, the positioning portion 2623 is preferably in the form of a boss structure, and the positioning portion 2623 can be connected with the reset spring 263 to drive the energy storage member 262 to reset. Of course, a boss or groove structure cooperating with the positioning portion 2623 can be formed in the switch pole 2 to limit the rotation range of the energy storage member 262, that is, when the positioning portion 2623 abuts against the boss or groove to limit the continuous rotation of the energy storage member 262.

[0131] In combination with Figures 11-13 and 16, the first energy storage structure 26 applied in the embodiment is provided.

[0132] As shown in Figures 11-13As shown, the energy storage structure includes an energy storage member 262 and a return spring 263, the energy storage member 262 is rotationally assembled on one side of each set of contact mechanisms, and two energy storage structures are located on the same side of the two sets of contact mechanisms, the energy storage member 262 includes a rotating part in the shape of a circular shaft, an axial hole is arranged in the middle of the rotating part, the rotating part extends radially outward to form a rod-shaped unlocking part 2622, the other side of the rotating part extends outward to form a limiting arm in the shape of a straight rod, and a gap is left between the limiting arm and the unlocking part 2622, the extension length of the limiting arm is greater than the length of the unlocking part 2622, the end of the limiting arm is bent to form a hook-shaped locking part 2621 on the side where the unlocking part 2622 is arranged, in this embodiment, the width of the limiting arm is greater than or equal to the width of the rotating part in the axial direction, so that the thickness of the locking part 2621 in the third direction is greater than or equal to the sum of the widths of one end of all the movable contact bridges 2220, which is beneficial to the limiting and locking of the locking part 2621 and one end of all the movable contact bridges 2220 in the movable contact 222. A positioning part 2623 is arranged on the side of the limiting arm away from the unlocking part 2622, Figure 11 、 15 The positioning part 2623 is a circular boss, and the return spring 263 is connected to the positioning part 2623, Figures 11-13 The return spring 263 is elastically deformed in parallel to the second direction, thereby driving the limiting arm to swing.

[0133] In combination Figures 14-16 A second energy storage structure 26 applied in this embodiment is provided.

[0134] As shown in the drawings, Figures 14-16 The energy storage structure 26 includes a bracket 261, the bracket 261 has a U-shaped body structure as a whole, so that the bracket 261 has a receiving cavity 2610 with an opening facing the contact mechanism, a pair of side walls of the receiving cavity 2610 are provided with shaft holes, mounting shafts 264 are arranged in the shaft holes to rotationally assemble the energy storage member 262, preferably, one of the side walls protrudes a circular boss at the corresponding shaft hole, the protruding height of the circular boss can compensate for the gap between the energy storage member 262 and the receiving cavity 2610, so as to avoid excessive shaking of the energy storage member 262 in the receiving cavity 2610 during rotation; the side wall of the receiving cavity 2610 opposite to the opening is provided with a positioning groove, in this embodiment, the positioning groove is a circular groove, and the positioning groove is used to cooperate with the positioning part 2623 arranged on the energy storage member 262 to limit the swing range of the energy storage member 262.

[0135] As shown in the drawings, Figure 15 、 16As shown, the energy storage member 262 is similar in structure to the energy storage member 262 in the first energy storage structure, and the energy storage member 262 includes a rotating part in a circular shaft shape, an axle hole is arranged at the middle part of the rotating part, the rotating part extends outward in the radial direction to form a rod-shaped unlocking part 2622, the other side of the rotating part extends outward to form a limiting arm in a straight rod shape, and a gap is left between the limiting arm and the unlocking part 2622, the extending length of the limiting arm is greater than the length of the unlocking part 2622, and the end of the limiting arm is bent to form a hook-shaped locking part 2621 on the side where the unlocking part 2622 is arranged, in this embodiment, the limiting arm is formed by extending the rotating part in the moving direction of the movable contact 222, and the width of the limiting arm is greater than or equal to the width of the rotating part in the axial direction, so that the thickness of the locking part 2621 in the third direction is greater than or equal to the sum of the widths of the one ends of all movable contact bridges 2220, which is beneficial to the locking part 2621 and the one ends of all movable contact bridges 2220 in the movable contact 222 being locked and limited. A positioning part 2623 is arranged on the side of the limiting arm away from the unlocking part 2622, Figure 16 In this embodiment, the positioning part 2623 is a circular boss, when the positioning part 2623 cooperates with the positioning groove of the support 261, the energy storage member 262 stops rotating, thereby limiting the swinging range thereof.

[0136] Of course, when the support 261 is a U-shaped body, the side wall of the accommodating cavity 2610 opposite to the opening and the limiting arm can cooperate to limit the swinging range of the energy storage member 262, in addition, when the energy storage structure 26 is not configured with the support 261, the positioning groove cooperating with the positioning part 2623 can be arranged on a fixed component in the housing 1. Of course, the reset spring 263 can also be connected to the positioning part 2623, at this time, the reset spring 263 is connected between the positioning part 2623 and the positioning groove.

[0137] In addition, as shown, Figures 22-27 The switching device of this embodiment can also be configured with the same control electrode 3 as the first embodiment.

[0138] It should be noted that, in the description of the utility model, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in use, and are only for the convenience of description, and cannot be understood as indicating that the devices or elements referred to must have a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating relative importance.

[0139] The above is further detailed description of the utility model in combination with specific preferred embodiments, and cannot be deemed as limitation of the specific implementation of the utility model to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, and all of them shall be deemed as belonging to the protection scope of the utility model.

Claims

1. A switch, comprising a housing (1) and a switch pole (2) arranged in the housing (1), the switch pole (2) comprising a rotating shaft (21) and two sets of contact mechanisms, the rotating shaft (21) being arranged between the two sets of contact mechanisms, one set of contact mechanisms being closed by the rotating shaft (21) and the other set of contact mechanisms being opened, each set of contact mechanisms comprising a set of moving contact assemblies (22) and a set of stationary contact assemblies, a linkage (24) being connected between each set of moving contact assemblies (22) and the rotating shaft (21), the linkage (24) driving the set of moving contact assemblies (22) to move in a first direction for cooperating with the corresponding set of stationary contact assemblies, characterized in that the switch pole (2) further comprising a self-locking member (27) cooperating with each set of moving contact assemblies (22), the self-locking member (27) being driven by the set of moving contact assemblies (22) to slide in the first direction with the housing (1), the rotating shaft (21) is rotated, the linkage (24) connected to the set of moving contact assemblies (22) in the closed position is first pushed by the rotating shaft (21), so that one set of contact mechanisms is first opened to the position, and the other set of contact mechanisms is then closed to the position, when one set of contact mechanisms cannot be opened, the self-locking member (27) is driven by the set of moving contact assemblies (22) of the other set of contact mechanisms to move, so that the set of contact mechanisms that cannot be opened is opened, or the self-locking member (27) is limited by the set of contact mechanisms that cannot be opened, so that the other set of contact mechanisms cannot be closed.

2. The switch according to claim 1, characterized in that: the rotating shaft (21) comprises a driving shaft (211), two rotating discs (212) are coaxially arranged on the driving shaft (211), each rotating disc (212) is driven by the driving shaft (211) to rotate for opening and closing, the linkage (24) is connected between one set of moving contact assemblies (22) and one rotating disc (212), the driving shaft (211) is provided with two opening pushing portions (2112), before the driving shaft (211) drives the rotating disc (212) in the opening position to rotate for closing, the linkage (24) connected to the set of moving contact assemblies (22) in the closed position is pushed by one of the opening pushing portions (2112).

3. The switch according to claim 2, characterized in that: a separation portion (2110) is arranged in the middle of the driving shaft (211), the two rotating discs (212) are separated by the separation portion (2110), so that the two ends of the driving shaft (211) are respectively drivingly connected with the two rotating discs (212), the edges of the separation portion (2110) are outwardly protruded to form the two opening pushing portions (2112).

4. The switch according to claim 3, characterized in that: a strip-shaped boss is arranged in the middle of the driving shaft (211), the protruding height of the strip-shaped boss is smaller than the protruding height of the separation portion (2110), the strip-shaped boss is separated into two driving portions (2111) by the separation portion (2110), each driving portion (2111) cooperates with a driving groove (2121) arranged in the rotating disc (212).

5. The switch according to any of claims 2-4, characterized in that: Each set of movable contact assembly (22) is further provided with a reset elastic member (25), the linkage (24) and the reset elastic member (25) connected to the same movable contact assembly (22) form a set of drive assemblies, the drive assemblies switch between the balance position and the dead point position, and one set of drive assemblies turns to the dead point position to make the connected movable contact assembly (22) close to the position, and the other set of drive assemblies turns to the balance position to make the connected movable contact assembly (22) open to the position.

6. The switch according to claim 5, characterized in that: In the dead point position, the two hinge points of the linkage (24) and the axis of the rotating disc (212) are collinear, and in the balance position, the two hinge points of the linkage (24) and the axis of the rotating disc (212) are not collinear, and the axis of the reset elastic member (25) passes through the axis of the rotating disc (212).

7. The switch according to claim 1, characterized in that: The movable contact assembly (22) comprises a movable contact (222) and a contact support (221), the movable contact (222) is arranged through the contact support (221), the contact support (221) is provided with a matching part (2212) and a pushing part (2216), and the matching part (2212) and the pushing part (2216) are located on opposite sides of the contact support (221) respectively, the self-locking part (27) is provided with a locking part (271) corresponding to the matching part (2212), and in the same movable contact assembly (22), the movable contact (222), the locking part (271) and the matching part (2212) are sequentially arranged in the first direction.

8. The switch according to claim 7, characterized in that: In the first direction, the maximum distance between the matching parts (2212) of the two sets of contact mechanisms is less than the distance between the locking parts (271) of the corresponding two sets of contact mechanisms.

9. The switch according to claim 7, characterized in that: The self-locking part (27) comprises a rod-shaped body, and the two ends of the rod-shaped body are respectively provided with a locking part (271), each locking part (271) extends to between the contact support (221) and the movable contact (222) of the adjacent movable contact assembly (22), and the contact support (221) pushes the locking part (271) to move the self-locking part (27) in the first direction during the closing movement.

10. The switch according to claim 7, characterized in that: The movable contact (222) and the contact support (221) are provided with a contact spring (223), and the contact spring (223) elastically deforms in the first direction when the movable contact (222) and the contact support (221) move relatively.

11. The switch according to claim 10, characterized in that: In the second direction, at least one side of one set of movable contact assemblies (22) is configured with an energy storage structure (26), the energy storage structure (26) comprises a rotatingly assembled energy storage part (262), the energy storage part (262) is provided with a locking part (2621) and an unlocking part (2622), during the closing movement of the movable contact assembly (22), the movable contact (222) is first limited and matched with the locking part (2621) to stop the closing movement, the contact support (221) continues to close, the pushing part (2216) pushes the unlocking part (2622) to make the energy storage part (262) rotate and unlock, and the movable contact (222) is driven by the contact spring (223) after being unlocked with the locking part (2621), and the second direction is perpendicular to the first direction.

12. The switch according to claim 11, characterized in that: The energy storage structure (26) is further provided with a reset spring (263) coaxially arranged with the energy storage member (262), and the two ends of the reset spring (263) are in elastic abutment with the energy storage member (262) and the shell (1) respectively, or the reset spring (263) is arranged side by side with the energy storage member (262) in the second direction, one end of the reset spring (263) is connected with the energy storage member (262), and the other end of the reset spring (263) is connected in the shell (1).

13. The switch according to claim 11, characterized in that: The energy storage structure (26) further comprises a support (261) comprising an open cavity (2610) for accommodating the contact mechanism, and the energy storage member (262) is rotationally arranged in the cavity (2610).

14. The switch according to claim 11, characterized in that: Each group of contact mechanisms is further provided with an arc extinguishing system comprising an arc extinguishing chamber (28), and in the second direction, the arc extinguishing chamber (28) is located on the opposite sides of the same contact mechanism as the energy storage structure (26) respectively.

15. The switch according to claim 1, characterized in that: Further comprising a control pole (3) arranged side by side with the switch pole (2) in the third direction, the control pole (3) comprises a motor (31) and a gear set (32), and the gear set (32) is drivingly connected between the output shaft of the motor (31) and the rotating shaft (21), and the third direction is perpendicular to the first direction.

16. The switch according to claim 15, characterized in that: The control pole (3) further comprises a circuit board (34) and a driven time delay member (33), the micro switch (35) is connected on the circuit board (34), the driven time delay member (33) is rotationally arranged and driven to rotate by one gear of the gear set (32), and the micro switch (35) is triggered by the driven time delay member (33).

17. The switch according to claim 1, characterized in that: The switch pole (2) further comprises an incoming line terminal and an outgoing line terminal, and each group of contact mechanisms is connected between one wiring terminal (20) and one outgoing line terminal.

18. The switch according to claim 17, characterized in that: Two groups of contact mechanisms are commonly connected to the same outgoing line terminal.

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