CN219202988U - Change-over switch and charging system - Google Patents

Abstract

The application provides a change-over switch and charging system, wherein the change-over switch includes driving piece and switch assembly. The switch assembly comprises a switch piece, a first elastic piece, a first movable part and a first fixed part. The driving piece is connected with the switch piece, and the switch piece is connected with the first movable part. The first movable part comprises a first movable contact, the first fixed part comprises a first fixed contact, and one end of the first elastic piece acts on the switch piece to provide elastic restoring force for the switch piece. The switch assembly is driven by the driving piece, so that the first movable part can be contacted with the first fixed part, and the switch is simple and convenient to operate and can reduce cost.

Description

Change-over switch and charging system

Technical Field

The application relates to the technical field of switches, in particular to a change-over switch and a charging system.

Background

In the new energy charging system, multiple groups of change-over switches are needed, so that the utilization rate of multiple modules of the system is improved, the overall power density of the system can be improved, and the commercial competitiveness of the switching power supply system is improved.

The current change-over switch is mainly a single-pole switch, and each change-over switch needs to be opened and closed manually alone, so that the labor cost is high, the program is complex and errors are easy to occur.

Disclosure of Invention

The application provides a change-over switch and charging system, and this change-over switch is easy and simple to handle, and can reduce cost.

A first aspect of embodiments of the present application provides a diverter switch comprising a driver and a switch assembly. The switch assembly comprises a switch piece, a first elastic piece, a first movable part and a first fixed part, wherein the driving piece is connected with the switch piece, and the switch piece is connected with the first movable part. The first movable part comprises a first movable contact, the first fixed part comprises a first fixed contact, and one end of the first elastic piece acts on the switch piece to provide elastic restoring force for the switch piece.

The switch component of the switch component is driven by the driving component, and the switching component can drive the first moving contact to contact with the first fixed contact, namely, the first movable part is electrically connected with the first fixed part. Under the drive of the driving piece, the first moving contact can be contacted with the first fixed contact, and at the moment, the first elastic piece is compressed to start the change-over switch. Under the driving of the driving piece again, the first moving contact is separated from the first fixed contact through the elastic restoring force provided by the first elastic piece, so that the change-over switch is disconnected. The switch drives the switch piece to move through the driving piece, and drives the first movable part to contact with or separate from the first fixed part, so that the switch is not required to be manually operated to be opened or closed, the probability of error occurrence in the process of operating the switch is reduced, and the labor cost is also reduced.

Based on the first aspect, in one possible implementation manner, the switch member includes a transmission part and a connection part, two ends of the transmission part are respectively connected with the driving member and the connection part, and the connection part penetrates through the first movable part and is connected with the first elastic member.

In this possible implementation manner, by providing the transmission portion and the connection portion, the transmission portion can drive the connection portion to move under the driving of the driving member, so that the first movable portion can move toward the first fixed portion. The transmission part can drive the connecting part to move in a rotating mode, and the transmission part can also drive the connecting part to move in a pushing mode. The switch piece is provided with the transmission part, so that different driving modes can be converted into driving connection parts to move, and the connection stability of the first movable part and the first fixed part is ensured.

Based on the first aspect, in one possible implementation manner, the transmission part includes a pressing block, a sleeve and a rotating block. One end of the pressing block is connected with the driving piece, the other end of the pressing block stretches into the sleeve to be abutted with the rotating block, and the rotating block is connected with the connecting part. The pressing block can move under the guidance of the sleeve and drives the rotating block to rotate, and the driven rotating block is propped against the end part of the sleeve or partially stretches into the sleeve.

In this possible embodiment, the connection can move the first movable part by means of the cooperation between the pressing block, the sleeve and the rotary block. When the pressing block is pressed, the pressing block can move in the sleeve, meanwhile, the pressing block can drive the rotating block to rotate and the rotating block can also move until the rotating block abuts against the end part of the sleeve, at the moment, the first movable contact is contacted with the first fixed contact, the first movable part is electrically connected with the first fixed part, and the first elastic piece is compressed. When the pressing block is pressed again, the pressing block moves in the sleeve, meanwhile, the pressing block can drive the rotating block to rotate and move in a rotating mode, under the action of restoring force provided by the first elastic piece, part of the rotating block is retracted into the sleeve, the first moving contact is separated from the first fixed contact, and the first movable portion is disconnected from the first fixed portion. The pressing block, the sleeve and the rotating block are matched with each other, so that the switch assembly has a self-locking function, and continuous contact between the first moving contact and the first fixed contact is ensured.

Based on the first aspect, in one possible implementation manner, the transmission part includes a pressing block, a sleeve and a rotating block. One end of the pressing block is connected with the rotating block, the other end of the pressing block stretches into the sleeve to be connected with the connecting part, the pressing block is provided with a clamping groove, and the sleeve is provided with a clamping ring. The pressing block can move in the sleeve, so that the clamping ring stretches into the clamping groove. The rotating block can drive the pressing block to rotate, so that the clamping ring is provided with a separation clamping groove.

In this possible implementation manner, the clamping groove is formed in the pressing block, the clamping ring is arranged in the sleeve, and after the driving piece drives the pressing block to move, the clamping ring stretches into the clamping groove so that the switch assembly has a self-locking function. And then the rotating block drives the pressing block to rotate, and the clamping ring is separated from the clamping groove, so that the pressing block is separated from the locking of the sleeve. The pressing block, the sleeve and the rotating block are matched with each other, so that the switch assembly has a self-locking function, and continuous contact between the first moving contact and the first fixed contact is ensured.

Based on the first aspect, in one possible implementation manner, the switch assembly further includes a first limiting member and a second elastic member. The first limiting piece is arranged on the switch piece, one end of the second elastic piece is propped against the first limiting piece, the other end of the second elastic piece is propped against the first movable portion, and the second elastic piece provides elastic force close to the first fixed portion for the first movable portion.

In this possible implementation manner, by setting the second elastic element, opposite ends of the second elastic element respectively support against the first limiting element and the first movable portion, and the second elastic element provides a restoring force close to the first fixed portion for the first movable portion, so as to improve stability when the first moving contact contacts with the first contact.

Based on the first aspect, in one possible implementation manner, the switch assembly further includes a second movable portion and a second fixed portion. The second movable part is connected with the switch piece, and comprises a second movable contact, and the second fixed part comprises a second fixed contact. When the switch piece enables the first moving contact to be in contact with the first fixed contact, the second moving contact is also in contact with the second fixed contact.

In this possible implementation, the second movable part and the second fixed part can expand the contacts of the switch. The change-over switch can realize that the first movable part and the first fixed part are matched with a live wire in the power grid, and the second movable part and the second fixed part are matched with a zero wire in the power grid. Therefore, the electric equipment connected with the change-over switch does not need to be additionally connected with the power grid, and the electric equipment is electrically connected with the first fixing part and the second fixing part.

Based on the first aspect, in one possible implementation manner, the switch assembly further includes a second limiting member and a third elastic member. The second limiting piece is arranged on the switch piece, one end of the third elastic piece is propped against the second limiting piece, the other end of the third elastic piece is propped against the second movable portion, and the third elastic piece provides elastic force close to the second fixed portion for the second movable portion.

In this possible implementation, the second movable part and the second fixed part can expand the contacts of the switch. The change-over switch can realize that the first movable part and the first fixed part are matched with a live wire in the power grid, and the second movable part and the second fixed part are matched with a zero wire in the power grid. Therefore, the electric equipment connected with the change-over switch does not need to be additionally connected with the power grid, and the electric equipment is electrically connected with the first fixing part and the second fixing part.

Based on the first aspect, in one possible implementation manner, the change-over switch includes a transmission assembly and two switch assemblies, the driving member is connected with the transmission assembly, and the transmission assembly is connected with the two switch assemblies. The driving piece can drive the transmission assembly to rotate along two opposite directions, so that the first moving contact of one first movable part is contacted with the first fixed contact of the first fixed part, and the first moving contact of the other first movable part is separated from the first fixed contact of the first fixed part.

In this possible implementation, one drive member can control both switch assemblies by providing a transmission assembly. When the transmission assembly drives one of the switch pieces to move so that the corresponding first moving contact is contacted with the first fixed contact, the first movable part is electrically connected with the first fixed part. Meanwhile, a first moving contact and a first fixed contact in the other switch assembly are in an open state. When two switch modules are connected with different electric equipment, the first moving contact and the first static contact of the different switch modules are electrically connected, so that the different electric equipment can be connected into a power grid. In the change-over switch, the two switch components are controlled through the transmission component, so that the integration level and the automation of the change-over switch are improved.

Based on the first aspect, in one possible implementation manner, the transmission assembly includes a gear and two racks, the two racks are respectively provided on the two switch pieces, and the gear is respectively meshed with the two racks.

In this possible implementation manner, the driving is realized through the mode of mutual meshing of the gear and the rack, so that the transmission assembly can drive the switch more accurately, and meanwhile, the whole structure of the switch is more compact due to the fact that one transmission assembly is adopted to control two switch assemblies.

A second aspect of embodiments of the present application provides a charging system, including a charging module and a switch of any implementation manner provided in the first aspect. The charging module comprises a first electric connector, and the first electric connector is electrically connected with the first static contact.

In the charging system, the driving piece drives the first movable part and the first fixed part in the switch assembly to cooperate, so that the charging module is controlled to be started and stopped.

Drawings

Fig. 1 is a schematic perspective view of a switch according to an embodiment of the present application.

Fig. 2 is a schematic partial perspective view of a diverter switch according to an embodiment of the present application, wherein a housing is removed.

Fig. 3 is a schematic perspective view of a portion of a switch assembly in a diverter switch according to an embodiment of the present application.

Fig. 4 is a schematic cross-sectional view of a portion of the switch assembly shown in fig. 3 taken along direction IV-IV.

Fig. 5 is an exploded view of the partial switch assembly of fig. 3.

Fig. 6 is a partial schematic view of the transmission portion of the partial switch assembly shown in fig. 3 driving the connecting portion to press the first elastic member.

FIG. 7 is a partial schematic view of the actuator-driven connection portion of the partial switch assembly of FIG. 3 releasing the first resilient member.

Fig. 8 is a schematic cross-sectional view of a portion of a switch assembly in a diverter switch according to another embodiment of the present application.

Fig. 9 is a schematic perspective view of a switch according to another embodiment of the present application.

Fig. 10 is a system schematic diagram of a charging system according to an embodiment of the present application.

Description of the main reference signs

Change-over switch 100

Driving part 001

Switch assembly 002

Switch 020

Transmission portion 201

Pressing block 2011, 2011'

First protruding portion 2011a

First saw teeth 2011b

Clamping groove 2011c

Sleeve 2012, 2012'

Chute 2012a

Groove 2012b

Bevel 2012c

Clasp 2012d

Rotating block 2013, 2013'

Second protruding portion 2013a

Second saw teeth 2013b

Connection portion 202

First elastic piece 021

First movable part 022

First mounting block 221

First movable contact 222

First power supply moving contact 2221

First power contact 2222

First fixing portion 023

First power supply plate 231

First stationary contact 232

First power supply fixed contact 2321

First electrical stationary contact 2322

First conductive plate 233

First limiting piece 024

Second elastic member 025

Second movable part 026

Second mounting block 261

Second movable contact 262

Second power supply moving contact 2621

Second power contact 2622

Second fixing portion 027

Second power supply plate 271

Second stationary contact 272

Second power supply stationary contact 2721

Second power-consumption static contact 2722

Second conductive plate 273

Second limiting piece 028

Third elastic member 029

Shell 003

Drive assembly 004

Gear 040

Rack 041

Charging module 500

First electrical connector 005

First direction Z

Second direction X

Third direction Y

The following detailed description will further illustrate the application in conjunction with the above-described figures.

Detailed Description

Further advantages and effects of the present application will be readily apparent to those skilled in the art from the present disclosure, by describing embodiments of the present application with specific examples. While the description of the present application will be presented in conjunction with an example, it is not intended that the features of this application be limited to this embodiment. Rather, the purpose of the description presented in connection with the embodiments is to cover other alternatives or modifications, which may be extended by the claims based on the present application. The following description contains many specific details in order to provide a thorough understanding of the present application. The present application may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the focus of the application. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.

Hereinafter, the terms "first," "second," and the like, if used, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more. The terms of orientation such as "upper", "lower", "left", "right", etc. are defined with respect to the orientation of the components shown in the drawings as they are schematically disposed, and it should be understood that these directional terms are relative terms that are used for descriptive and clarity with respect to each other and that may be varied accordingly with respect to the orientation of the components shown in the drawings.

In the present application, the term "coupled" should be interpreted broadly, unless explicitly stated or defined otherwise, as such, as the term "coupled" may be fixedly coupled, detachably coupled, or as a single piece; can be directly connected or indirectly connected through an intermediate medium. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In the following detailed description of the embodiments in conjunction with the drawings, which are not to scale in general, the drawings illustrating the partial structure of the device are not to scale and are merely examples, which should not limit the scope of the present application.

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Fig. 1 is a schematic perspective view of a switch 100 according to an embodiment of the present application. Fig. 2 is a schematic perspective view of a portion of a diverter switch 100 according to an embodiment of the present application, wherein a housing 003 is removed.

Referring to fig. 1 and 2, an embodiment of the present application provides a switch 100, which can be used to connect a power grid and electric equipment, so as to realize that the power grid can be electrically connected with the electric equipment through the switch 100. The switch 100 includes a driving member 001 and a switch assembly 002, where the driving member 001 is connected to the switch assembly 002 to drive the structure in the switch assembly 002 to move, so that the switch assembly 002 can be switched between on and off states. The switch 100 further includes a housing 003, and the driver 001 and the switch assembly 002 are disposed within the housing 003.

Referring to fig. 2, the driving member 001 is disposed on the switch assembly 002 as a power source for generating motion of the switch assembly 002. In one embodiment, the driving member 001 may be a thrust solenoid. When the thrust electromagnetic coil is energized, the thrust electromagnetic coil generates a magnetic field, and the switch assembly 002 receives thrust under the action of the magnetic field, so that movement can be generated. Through setting up thrust solenoid as the driving piece 001 of switch module 002, thrust solenoid structure is little on the one hand for change over switch 100's whole is compacter, and on the other hand thrust solenoid also is convenient for control, and alright use after being circular telegram to it has reduced the complexity of operation.

It will be appreciated that in other embodiments, the driving member 001 may be other structures having equivalent efficacy or function, for example, the driving member 001 may be replaced with a motor. By driving the switch assembly 002 by the motor, the switch assembly 002 can be ensured to move, and the stability of the switch assembly 002 in connection or disconnection is improved.

Fig. 3 is a schematic perspective view of a partial switch assembly 002 of a switch 100 according to an embodiment of the present application.

Referring to fig. 1, 2 and 3, the switch assembly 002 includes a switch member 020, a first elastic member 021, a first movable portion 022 and a first fixed portion 023. The driving member 001 is connected to the switching member 020, the switching member 020 is connected to the first movable portion 022, one end of the first elastic member 021 acts on the switching member 020, and the first movable portion 022 and the first fixed portion 023 are disposed at intervals along the first direction Z. The switch member 020 is disposed along a first direction Z, the driving member 001 is disposed at one end of the switch, and the first elastic member 021 acts on the other end of the switch member 020 and abuts against the inner wall of the housing 003. The first movable part 022 is penetrated by the switch member 020, the first fixed part 023 is fixedly connected with the shell 003, and a space exists between the first movable part 022 and the first fixed part 023 along the first direction Z, so that the first movable part 022 can move along the first direction Z or the direction opposite to the first direction Z under the driving of the switch member 020.

The switch member 020 can move along the first direction Z or the direction opposite to the first direction Z under the driving of the driving member 001, so as to drive the first movable portion 022 to move. The switching member 020 is moved such that the first elastic member 021 is switched between being compressed and not being compressed.

For example, when the driving member 001 drives the switching member 020 to move along the first direction Z, the switching member 020 can overcome the elastic force of the first elastic member 021 under the driving of the driving member 001, so that the first movable portion 022 approaches the first fixed portion 023. At this time, the first elastic member 021 has an elastic restoring force parallel to the first direction Z and keeping the first movable portion 022 away from the first fixed portion 023.

Fig. 4 shows a schematic cross-sectional view of a portion of the switch assembly 002 shown in fig. 3 in the direction IV-IV. Fig. 5 shows an exploded view of a portion of the switch assembly 002 shown in fig. 3.

Referring to fig. 2, 4 and 5, in one embodiment, the switch member 020 includes a transmission portion 201 and a connection portion 202. The two ends of the transmission part 201 are respectively connected with the driving piece 001 and the connecting part 202, and the connecting part 202 penetrates through the first movable part 022 and is connected with the first elastic piece 021. Wherein, the driving piece 001 drives the connecting part 202 to move through the transmission part 201. Since the connecting portion 202 passes through the first movable portion 022, the connecting portion 202 can drive the first movable portion 022 to move in the moving process, and meanwhile, the first elastic member 021 is pressed by the connecting portion 202.

By providing the transmission part 201 and the connection part 202, the transmission part 201 can drive the connection part 202 to move under the driving of the driving piece 001, so that the first movable part 022 can move toward the first fixed part 023. The transmission part 201 can drive the connection part 202 to move in a rotating manner, and the transmission part 201 can also drive the connection part 202 to move in a pushing manner. The switch member 020 is provided with the transmission part 201, and can convert different driving modes into movement of the driving connection part 202, so that the connection stability of the first movable part 022 and the first fixed part 023 is ensured.

Referring to fig. 4 and 5, in an embodiment, the transmission portion 201 includes a pressing block 2011, a sleeve 2012, and a rotating block 2013. One end of the pressing block 2011 is connected with the driving piece 001, the other end of the pressing block extends into the sleeve 2012 to be abutted against the rotating block 2013, and the rotating block 2013 is connected with the connecting portion 202. The pressing block 2011 can move under the guide of the sleeve 2012 and drive the rotating block 2013 to rotate, and the driven rotating block 2013 abuts against the end part of the sleeve 2012 or partially stretches into the sleeve 2012.

In an embodiment, a portion of the pressing block 2011 extending into the sleeve 2012 is provided with a first protrusion 2011a, and the pressing block 2011 is provided with a first saw tooth 2011b near an end of the rotating block 2013. The pressing block 2011 is generally a cylindrical structure, and a plurality of first protrusions 2011a are disposed at intervals along a circumferential direction thereof, and a plurality of first serrations 2011b are disposed along the circumferential direction of the pressing block 2011.

In an embodiment, the sleeve 2012 is provided with a chute 2012a, the chute 2012a penetrates through the inner and outer surfaces of the sleeve 2012', and the inner surface of the sleeve 2012 is further provided with guide grooves (not shown), and the chute 2012a and the guide grooves are alternately arranged along the circumferential direction of the sleeve 2012'. Part of the first protruding part 2011a can move in the chute 2012a, and the other part of the first protruding part 2011a can move in the guide groove. The sleeve 2012 is further provided with a plurality of grooves 2012b along the circumference thereof, each groove 2012b is provided at an end of the guide groove near the rotating block 2013 along the first direction Z, and the groove 2012b has a slope 2012c connected with the chute 2012 a. In a first direction Z, the tooth slot tip projections of the first saw teeth 2011b are located within the grooves 2012b.

In an embodiment, the rotating block 2013 is generally a cylindrical structure, and a plurality of second protrusions 2013a are disposed on a surface of the rotating block 2013 at intervals along a circumferential direction of the rotating block 2013, and the second protrusions 2013a extend with second saw teeth 2013b toward an end of the pressing block 2011. Wherein the second protrusions 2013a are movable in the chute 2012a, and the number of the second protrusions 2013a corresponds to the number of the chute 2012 a. The second saw tooth 2013b mates with the first saw tooth 2011b, i.e., the tooth tip of the second saw tooth 2013b can extend into the tooth slot of the first saw tooth 2011 b. In addition, the second serrations 2013b can extend into the recess 2012b.

Fig. 6 is a partial schematic diagram showing that the transmission part 201 drives the connection part 202 to press the first elastic member 021 in the partial switch assembly 002 shown in fig. 3. Fig. 7 is a partial schematic diagram showing that the transmission part 201 drives the connection part 202 to release the first elastic member 021 in the partial switch assembly 002 shown in fig. 3.

Referring to fig. 4, when the first movable portion 022 and the first fixed portion 023 are in the disconnected state, the first saw teeth 2011b of the pressing block 2011 and the second saw teeth 2013b of the rotating block 2013 are both located in the sleeve 2012, and the tooth tips of the second saw teeth 2013b are abutted against the tooth groove wall of the first saw teeth 2011b and the groove wall of the chute 2012 a. At this time, the first elastic member 021 is not compressed, and the second protrusion 2013a is located in the chute 2012 a.

Referring to fig. 6, when the first movable portion 022 is required to be electrically connected with the first fixed portion 023, the driving member 001 applies a pushing force to the pressing block 2011 along the first direction Z, the first protrusion 2011a of the pressing block 2011 slides in the sliding groove 2012a and the guiding groove in the sleeve 2012, and the first saw teeth 2011b push the second saw teeth 2013b. The rotation block 2013 is driven by the pressing block 2011 to move along the first direction Z, so as to push the connection portion 202. The first elastic member 021 is compressed by the connection portion 202 and generates a restoring force to the connection portion 202. Meanwhile, the tooth tip of the second saw tooth 2013b no longer abuts against the groove wall of the runner 2012a and moves along the groove wall of the first saw tooth 2011b, so that the rotating block 2013 rotates until the second saw tooth 2013b moves to the tooth groove tip of the first saw tooth 2011 b. The connection portion 202 is driven by the restoring force generated by the first elastic member 021 to push the rotating block 2013 to move along the direction opposite to the first direction Z, and since the projection of the tooth slot tip of the first saw tooth 2011b is located in the groove 2012b, the tooth tip of the second saw tooth 2013b enters the groove 2012b during the movement of the rotating block 2013 along the direction opposite to the first direction Z, so that the rotating block 2013 abuts against the end of the sleeve 2012, that is, the rotating block 2013 is locked to the sleeve 2012. At this time, the first movable part 022 is kept in contact with the first fixed part 023, and the first elastic member 021 is still in a compressed state.

Referring to fig. 7, when the first movable portion 022 is disconnected from the first fixing portion 023, the driving member 001 applies a pushing force to the pressing block 2011 again along the first direction Z, the first protrusion 2011a of the pressing block 2011 slides in the sliding groove 2012a and the guiding groove in the sleeve 2012, the first saw tooth 2011b pushes the second saw tooth 2013b such that the second saw tooth 2013b is separated from the groove 2012b, at this time, the second saw tooth 2013b moves along the tooth groove wall of the first saw tooth 2011b, and further the rotating block 2013 rotates until the second saw tooth 2013b moves to the tooth groove tip of the first saw tooth 2011b, and the tooth groove wall of the first saw tooth 2011b corresponds to the sliding groove 2012a. Under the restoring force provided by the first elastic member 021, the connecting portion 202 drives the rotating block 2013 to move along the direction opposite to the first direction Z, and the second saw teeth 2013b move in the sliding groove 2012a, so that the rotating block 2013 partially stretches into the sleeve 2012, the sleeve 2012 unlocks the rotating block 2013, and the pressing block 2011 also returns to the original position. At this time, the first elastic member 021 is not compressed by the connecting portion 202 any more.

The connection portion 202 can drive the first movable portion 022 to move through cooperation between the pressing block 2011, the sleeve 2012 and the rotating block 2013. When the pressing block 2011 is pressed, the pressing block 2011 can move in the sleeve 2012, and meanwhile, the pressing block 2011 can drive the rotating block 2013 to rotate and the rotating block 2013 can also move until the rotating block 2013 abuts against the end of the sleeve 2012, at this time, the first movable portion 022 is electrically connected with the first fixing portion 023, and the first elastic member 021 is compressed. When the pressing block 2011 is pressed again, the pressing block 2011 moves in the sleeve 2012, and meanwhile, the pressing block 2011 can drive the rotating block 2013 to rotate and move, under the restoring force provided by the first elastic element 021, part of the rotating block 2013 is retracted into the sleeve 2012, the first moving contact 222 is separated from the first fixed contact 232, and the first movable portion 022 is disconnected from the first fixed portion 023. The press block 2011, the sleeve 2012 and the rotating block 2013 cooperate with each other, so that the switch assembly 002 has a self-locking function, so as to ensure continuous contact between the first movable portion 022 and the first fixed portion 023.

It will be appreciated that in other embodiments, the pressing block 2011, the sleeve 2012 and the rotating block 2013 may be replaced with other shapes, so that the transmission portion 201 can implement the movement of the driving connection portion 202.

Fig. 8 is a schematic cross-sectional view of a portion of a switch assembly 002 of a switch 100 according to another embodiment of the present application.

Referring to fig. 8, in an embodiment, the transmission portion 201 includes a pressing block 2011', a sleeve 2012', and a rotating block 2013'. One end of the pressing block 2011' is connected with the rotating block 2013', and the other end extends into the sleeve 2012' to be connected with the connecting part 202. The pressing block 2011 'is provided with a clamping groove 2011c, and the sleeve 2012' is provided with a clamping ring 2012d. The pressing block 2011 'can move in the sleeve 2012' so that the clamping ring 2012d extends into the clamping groove 2011c. The rotating block 2013 'can drive the pressing block 2011' to rotate, so that the clamping ring 2012d can be separated from the clamping groove 2011c. The end of the pressing block 2011 'and the end of the connecting portion 202 are connected in the sleeve 2012', and the rotating block 2013 'is disposed at an end of the pressing block 2011' away from the connecting portion 202. The driving piece 001 is disposed on the rotating block 2013', so that the driving piece 001 applies a pushing force to the pressing block 2011' through the rotating block 2013', and further drives the connecting portion 202 to move.

When the first movable portion 022 needs to be kept in contact with the first fixed portion 023, the driving member 001 drives the pressing block 2011 to move along the first direction Z through the rotating block 2013', the driving member moves to the first movable portion 022 to be in contact with the first fixed portion 023, the clamping ring 2012d of the sleeve 2012' stretches into the clamping groove 2011c of the pressing block 2011', the sleeve 2012' locks the pressing block 2011', and the first elastic member 021 is compressed by the connecting portion 202.

When the first movable portion 022 needs to be in contact with the first fixed portion 023, the rotating block 2013' is driven to rotate, the rotating block 2013' drives the pressing block 2011' to rotate, the clamping ring 2012d of the sleeve 2012' is separated from the clamping groove 2011c, the connecting portion 202 pushes the pressing block 2011' along the direction opposite to the first direction Z under the driving of the first elastic piece 021, and the sleeve 2012' unlocks the pressing block 2011', so that the first elastic piece 021 returns to the original state.

The rotation block 2013' may be rotated by driving of the driving block. It can be appreciated that the rotating block 2013 'may also extend out of the housing 003, and rotate through the connection rotating structure, so as to enable the snap ring 2012d of the sleeve 2012' to be separated from the clamping groove 2011c.

The inner wall of the sleeve 2012 'is provided with two clamping rings 2012d which are symmetrically arranged, the outer wall of the pressing block 2011' is provided with two clamping grooves 2011c which are symmetrically arranged, and each clamping ring 2012d is matched with one clamping groove 2011c. It can be appreciated that in other embodiments, the number of the clamping grooves 2011c and the clamping rings 2012d can be set as required, for example, the sleeve 2012 'can be provided with four clamping rings 2012d, and the corresponding pressing block 2011' is provided with four clamping grooves 2011c, so as to improve the stability of the clamping between the pressing block 2011 'and the sleeve 2012' by increasing the number of the clamping rings 2012d and the clamping grooves 2011c.

Referring to fig. 5, in an embodiment, the connecting portion 202 is a connecting rod, and the connecting rod penetrates through the first movable portion 022 and is fixedly connected with the first movable portion 022. The rotating block 2013 may be sleeved at an end of the connecting rod, and the rotating block 2013 is configured to rotate relative to the connecting rod, so that the rotating block 2013 can be locked or unlocked.

It can be appreciated that in other embodiments, the connecting portion 202 may be replaced with other structures having equivalent functions or actions, for example, the connecting portion 202 may be replaced with a convex cylinder structure, the upper end of the connecting portion 202 with a convex structure is connected with the rotating block 2013, and the lower end of the connecting portion is abutted with the first elastic member 021, so as to increase the contact area between the connecting portion 202 and the first elastic member 021, and improve the abutting stability of the connecting portion 202 and the first elastic member 021.

Referring to fig. 5, in one embodiment, the first elastic member 021 is a spring. One end of the spring is in abutting contact with the connection portion 202, and the other end is fixed to the housing 003, so that the spring can provide an elastic restoring force to the switch 020.

It is understood that in other embodiments, the first elastic member 021 may be replaced with other structures having equivalent functions or actions, for example, the first elastic member 021 may be replaced with a gel structure capable of providing elastic restoring force.

Referring to fig. 2, the first movable portion 022 includes a first movable contact 222, and the first fixed portion 023 includes a first fixed contact 232. When the switch 020 drives the first movable part 022 to move toward the first fixed part 023 along the first direction Z, until the first movable contact 222 of the first movable part 022 contacts with the first fixed contact 232 of the first fixed part 023, the first movable part 022 and the first fixed part 023 are electrically connected.

In an embodiment, the first movable part 022 further includes a first mounting block 221, and the first fixed part 023 further includes a first power supply plate 231 and a first conductive plate 233. The first moving contact 222 is disposed on a surface of the first mounting block 221 facing the first fixed contact 232, and the first fixed contact 232 is disposed on a surface of the first power supply plate 231 and the first conductive plate 233 facing the first moving contact 222. The connecting portion 202 penetrates through the first mounting block 221 and can drive the first mounting block 221 to move along the first direction Z, so as to drive the first moving contact 222 disposed on the first mounting block 221 to move. The first power supply plate 231 extends in the second direction X and is fixed to the housing 003, and the first conductive plate 233 extends in the third direction Y and is fixed to the housing 003. The first power supply board 231 and the first conductive board 233 can pass through the housing 003 to the outside of the housing 003 so as to be connectable with an external electric network and electric equipment.

The first moving contact 222 includes a first power moving contact 2221 and a first power moving contact 2222, and the first fixed contact 232 includes a first power moving contact 2321 and a first power moving contact 2322. The first movable portion 022 includes a first metal sheet, the first metal sheet is disposed on a surface of the first mounting block 221 facing the first fixing portion 023, two ends of the first metal sheet form a first power supply moving contact 2221 and a first power supply moving contact 2222 respectively, and the first power supply moving contact 2221 and the first power supply moving contact 2222 are disposed on two sides of the first mounting block 221. The first electrical static contact 2322 corresponds to the first electrical contact 2222, the first power supply moving contact 2221 corresponds to the first power supply static contact 2321, the first power supply static contact 2321 is disposed on the first power supply plate 231, and the first electrical static contact 2322 is disposed on the first conductive plate 233. The first power supply fixed contact 2321 is connected with a live wire of the power grid through the first power supply plate 231, and the first power supply fixed contact 2322 is connected with electric equipment through the first conductive plate 233.

The first power supply moving contact 2221 and the first electric contact 2222 move synchronously along with the first mounting block 221, when the first power supply moving contact 2221 contacts the first power supply fixed contact 2321, the first electric contact 2222 also contacts the first electric fixed contact 2322, and at this time, the current of the power grid can flow from the first power supply fixed contact 2321 to the electric equipment through the first power supply moving contact 2221, the first electric contact 2222 and the first electric fixed contact 2322.

Referring to fig. 3 and 4, in an embodiment, the switch assembly 002 further includes a first limiting member 024 and a second elastic member 025. The first limiting member 024 is disposed on the switch member 020, one end of the second elastic member 025 abuts against the first limiting member 024, the other end abuts against the first movable portion 022, and the second elastic member 025 provides an elastic force to the first movable portion 022, which is close to the first fixed portion 023. The first limiting member 024 and the second elastic member 025 are respectively sleeved on the surface of the connecting portion 202, two ends of the second elastic member 025 respectively support against one surface of the first limiting member 024 and one surface of the first mounting block 221, which faces away from the first moving contact 222, and the second elastic member 025 is in a compressed state.

By providing the second elastic member 025 and making the second elastic member 025 in a compressed state, the second elastic member 025 can provide a restoring force close to the first fixing portion 023 to the first mounting block 221, so as to improve the stability when the first moving contact 222 contacts the first fixed contact 232.

Referring to fig. 2, in an embodiment, the switch assembly 002 further includes a second movable portion 026 and a second fixed portion 027. The second movable portion 026 is connected to the switch member 020, and the second movable portion 026 includes the second movable contact 262, and the second fixed portion 027 includes the second fixed contact 272. When the switch 020 makes the first moving contact 222 contact with the first fixed contact 232, the second moving contact 262 also contacts with the second fixed contact 272. Wherein, the second movable portion 026 and the second fixed portion 027 are disposed at intervals along the first direction Z.

The second movable portion 026 further includes a second mounting block 261, and the second fixed portion 027 further includes a second power supply plate 271 and a second conductive plate 273. The second movable contact 262 is disposed on a surface of the second mounting block 261 facing the second fixed contact 272, and the second fixed contact 272 is disposed on a surface of the second power supply plate 271 and the second conductive plate 273 facing the second movable contact 262. The connecting portion 202 penetrates through the second mounting block 261 and can drive the second mounting block 261 to move along the first direction Z, so as to drive the second moving contact 262 arranged on the second mounting block 261 to move. The second power feeding plate 271 extends along the second direction X and is fixed to the housing 003, and the second conductive plate 273 extends along the third direction Y and is fixed to the housing 003. The second power supply board 271 and the second conductive board 273 can pass through the housing 003 to the outside of the housing 003 so as to be connectable with an external electric network and electric equipment. The first mounting block 221 and the second mounting block 261 are disposed substantially parallel, the first power supply plate 231 and the second power supply plate 271 are disposed substantially parallel, and the first conductive plate 233 and the second conductive plate 273 are disposed substantially parallel, so that the second movable contact 262 and the second fixed contact 272 can also be brought into contact when the first movable contact 222 is in contact with the first fixed contact 232.

The second movable contact 262 includes a second power supply movable contact 2621 and a second power use movable contact 2622, and the second stationary contact 272 includes a second power supply stationary contact 2721 and a second power use stationary contact 2722. The second movable portion 026 includes a second metal sheet, the second metal sheet is disposed on a surface of the second mounting block 261 facing the second fixed portion 027, two ends of the second metal sheet form a second power supply moving contact 2621 and a second power use moving contact 2622 respectively, and the second power supply moving contact 2621 and the second power use moving contact 2622 are disposed on two sides of the second mounting block 261. The second power-use fixed contact 2722 corresponds to the second power-use electric contact 2622, the second power-supply movable contact 2621 corresponds to the second power-supply fixed contact 2721, the second power-supply fixed contact 2721 is arranged on the second power-supply plate 271, and the second power-use fixed contact 2722 is arranged on the second conductive plate 273. The second power supply fixed contact 2721 is connected with a zero line of the power grid through the second power supply plate 271, and the second power utilization fixed contact 2722 is connected with electric equipment through the second conductive plate 273.

The second power supply moving contact 2621 and the second power consumption moving contact 2622 move synchronously along with the second mounting block 261, when the second power supply moving contact 2621 contacts the second power supply fixed contact 2721, the second power consumption moving contact 2622 also contacts the second power consumption fixed contact 2722, and at this time, the current of the power grid can flow from the second power supply fixed contact 2721 to the electric equipment through the second power supply moving contact 2621, the second power consumption moving contact 2622 and the second power consumption fixed contact 2722.

Referring to fig. 3 and 4, in an embodiment, the switch assembly 002 further includes a second limiting member 028 and a third elastic member 029. The second limiting member 028 is disposed on the switch member 020, one end of the third elastic member 029 abuts against the second limiting member 028, the other end abuts against the second movable portion 026, and the third elastic member 029 provides an elastic force to the second movable portion 026, which is close to the second movable portion 026. Wherein, the second limiting piece 028 and the third elastic piece 029 are respectively sleeved on the surface of the connecting portion 202, two ends of the third elastic piece 029 respectively support against one surface of the second limiting piece 028 and the second mounting block 261, which is away from the second movable contact 262, and the third elastic piece 029 is in a compressed state.

By providing the third elastic member 029 and making the third elastic member 029 in a compressed state, the third elastic member 029 can provide a restoring force near the second fixing portion 027 to the second mounting block 261, so as to promote stability when the second movable contact 262 contacts with the second fixed contact 272.

In one embodiment, the second elastic member 025 and the third elastic member 029 are springs. It is understood that in other embodiments, the second elastic member 025 and the third elastic member 029 may be replaced with other structures having equivalent functions or actions, for example, the second elastic member 025 and the third elastic member 029 may be replaced with colloid structures capable of providing elastic restoring force.

It is appreciated that in one embodiment, the connecting portion 202, the first limiting member 024 and the second limiting member 028 may be an integrally formed structure.

In an embodiment, the first mounting block 221 and the second mounting block 261 are provided with insulation elements, such as plastic sheets, at the positions where the connection portion 202 passes through, so that the first moving contact 222 and the second moving contact 262 can be insulated from the connection portion 202 and the first elastic element 021, the second elastic element 025 and the third elastic element 029, and electrical leakage of the switch 100 when the switch is connected to the power grid and the electric equipment is avoided.

It can be appreciated that when the switch 100 has the first movable portion 022, the first fixed portion 023, the second movable portion 026 and the second fixed portion 027 at the same time, the first movable contact 222 of the first movable portion 022 is connected to the live wire of the electric power grid, the first fixed contact 232 of the first fixed portion 023 is connected to the first electric connector 005 of the electric power consumer, the second movable contact 262 of the second movable portion 026 is connected to the neutral wire of the electric power grid, and the second fixed contact 272 of the second fixed portion 027 is connected to the second electric connector of the electric power consumer.

When the first moving contact 222 contacts the first fixed contact 232 and the second moving contact 262 contacts the second fixed contact 272, the live wire of the power grid is electrically connected with the first electric connector 005 of the electric equipment, and the zero wire of the power grid is electrically connected with the second electric connector of the electric equipment, so that the power supply of the power grid to the electric equipment is realized.

The first moving contact 222 and the first fixed contact 232, and the second moving contact 262 and the second fixed contact 272 adopt a bridge deck contact mode. That is, the first moving contact 222 and the first fixed contact 232, and the second moving contact 262 and the second fixed contact 272 are in surface-to-surface contact, and the stability of contact can be improved by the surface-to-surface contact.

It can be understood that, under the condition that the second movable portion 026 and the second fixed portion 027 are not provided, the second electric connector of the electric device can be always connected to the zero line of the power grid, and whether the first electric connector 005 is electrically connected with the live wire is controlled by independently controlling whether the first movable contact 222 and the first fixed contact 232 are contacted or not, so that the electric device is controlled to be opened or closed.

It can be appreciated that when the first moving contact 222 is a single moving contact and the first fixed contact 232 is a single fixed contact, the live wire of the power grid can be electrically connected with the first moving contact 222 all the time through the flexible wire, and the power grid can supply power to the electric equipment through the contact between the first moving contact 222 and the first fixed contact 232.

It can be appreciated that when the second moving contact 262 is a single moving contact and the second fixed contact 272 is a single fixed contact, the zero line of the power grid can be electrically connected with the second moving contact 262 all the time through the flexible line, and the power grid can supply power to the electric equipment through the contact between the second moving contact 262 and the second fixed contact 272.

In other embodiments, the first moving contact 222 and the second moving contact 262 may also be connected to a power supply device such as a battery, and provide electric energy to the electric device through the battery.

Optionally, the first moving contact 222 may be connected to a first electrical connector 005 of the electrical device, and the first fixed contact 232 may be connected to a live wire of the electrical network. The second moving contact 262 can also be connected with a second electric connector of electric equipment, and the second fixed contact 272 is connected with a zero line of the power grid.

Fig. 9 is a schematic perspective view of a diverter switch 100 according to another embodiment of the present disclosure.

Referring to fig. 9, in one embodiment, the switch 100 includes a transmission assembly 004 and two switch assemblies 002. The driving member 001 is connected with a transmission assembly 004, and the transmission assembly 004 is connected with two switch assemblies 002. The driving member 001 can drive the transmission assembly 004 to rotate along two opposite directions, so that the first moving contact 222 of one first movable part 022 is in contact with the first fixed contact 232 of the first fixed part 023, and the first moving contact 222 of the other first movable part 022 is separated from the first fixed contact 232 of the first fixed part 023.

By providing a transmission assembly 004, one driver 001 can control both switch assemblies 002. When the transmission assembly 004 drives one of the switch members 020 to move so that the corresponding first moving contact 222 and the first fixed contact 232 are contacted, the first movable portion 022 and the first fixed portion 023 are electrically connected. Meanwhile, the first moving contact 222 and the first fixed contact 232 in the other switch assembly 002 are in an opened state. When the two switch assemblies 002 are connected with different electric devices, the first moving contact 222 and the first static contact 232 of the different switch assemblies 002 are electrically connected, so that the different electric devices can be connected to the power grid. In the switch 100, two switch assemblies 002 are controlled by the transmission assembly 004, so that the integration level and the automation of the switch 100 are improved.

In one embodiment, the transmission assembly 004 includes a gear 040 and two racks 041, the two racks 041 being provided on the two switch members 020, respectively, the gear 040 being in mesh with the two racks 041, respectively. Wherein, two racks 041 are respectively connected with a pressing block 2011 in the switch 020, after the gear 040 is connected with the racks 041, the gear 040 can convert rotary motion into linear motion along a first direction Z through the racks 041, and after the driving piece 001 drives the gear 040 to rotate, the gear 040 provides thrust for the switch 020 through the racks 041 to enable the connecting part 202 to move.

For example, when the switch 100 connects two consumers at the same time, the switch 100 may supply power to one of the consumers as needed and the other consumer is disconnected. The driving is realized by the mode that the gear 040 and the rack 041 are meshed with each other, so that the transmission assembly 004 can drive the change-over switch 100 more accurately, and meanwhile, the whole structure of the change-over switch 100 is more compact because one transmission assembly 004 is adopted to control two switch assemblies 002.

It will be appreciated that in other embodiments, the transmission assembly 004 may be replaced with other structures having equivalent efficacy or function, for example, the transmission assembly 004 may be replaced with a gear 040 that mates with a connecting rod. Wherein, a slider is disposed on the pressing block 2011, one end of the connecting rod is connected with the gear 040, the other end is movably disposed in the slider and connected with the pressing block 2011, and the pressing block 2011 is driven to move by the cooperation of the gear 040, the connecting rod and the slider.

When the change-over switch 100 is used, the two switch assemblies 002 can be controlled to be switched by driving one driving piece 001, so that the automation and integration degree of the change-over switch 100 are improved.

Fig. 10 shows a system schematic diagram of a charging system according to an embodiment of the present application.

Referring to fig. 1, fig. 2 and fig. 10 in combination, an embodiment of the present application provides a charging system, which includes a charging module 500 and a switch 100. The charging module 500 forms the aforementioned electrical device, and the switch 100 is the switch 100 described in any of the foregoing embodiments, so that the charging module has all the advantages of the switch 100. Here, a detailed description is omitted.

The charging module 500 includes a first electrical connector 005, and the first electrical connector 005 is electrically connected to the first stationary contact 232. When the switch 100 is not provided with the second movable portion 026 and the second fixed portion 027, the second electric connector of the charging module 500 can be directly connected to the neutral line of the power grid, and whether the first electric connector 005 is electrically connected with the live wire is controlled by independently controlling whether the first movable contact 222 is contacted with the first fixed contact 232, so as to control the on-off of the electric equipment.

In an embodiment, the charging system may include a plurality of switches 100, where the switches 100 are arranged along the second direction X, and the switches 100 are disposed in a housing 003, so as to implement high-density arrangement of the switches 100 in the charging system, and input and output are disposed on the same side respectively, so that the charging system has a compact structure and is convenient for external connection.

The plurality of switches 100 may be freely combined according to specific needs. For example, when the driving member 001 in each switch 100 employs a thrust solenoid, three, five or other numbers of driving members 001 may be energized simultaneously to apply thrust to the switch member 020, so as to drive the first moving contact 222 into contact with the first fixed contact 232.

The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the scope of the disclosure of the present application.

Claims (10)

1. The change-over switch is characterized by comprising a driving piece and a switch assembly;

the switch assembly comprises a switch piece, a first elastic piece, a first movable part and a first fixed part;

the driving piece is connected with the switch piece, and the switch piece is connected with the first movable part;

the first movable part comprises a first movable contact, and the first fixed part comprises a first fixed contact;

one end of the first elastic piece acts on the switch piece to provide elastic restoring force for the switch piece.

2. The switch according to claim 1, wherein the switch member includes a transmission portion and a connection portion, both ends of the transmission portion are respectively connected to the driving member and the connection portion, and the connection portion penetrates through the first movable portion and is connected to the first elastic member.

3. The transfer switch of claim 2, wherein the transmission portion includes a pressing block, a sleeve, and a rotating block;

one end of the pressing block is connected with the driving piece, the other end of the pressing block stretches into the sleeve to be abutted against the rotating block, and the rotating block is connected with the connecting part;

the pressing block can move under the guidance of the sleeve and drive the rotating block to rotate, and the driven rotating block is propped against the end part of the sleeve or partially stretches into the sleeve.

4. The transfer switch of claim 2, wherein the transmission portion includes a pressing block, a sleeve, and a rotating block;

one end of the pressing block is connected with the rotating block, the other end of the pressing block extends into the sleeve to be connected with the connecting part, the pressing block is provided with a clamping groove, and the sleeve is provided with a clamping ring;

the pressing block can move in the sleeve, so that the clamping ring stretches into the clamping groove;

the rotating block can drive the pressing block to rotate, so that the clamping ring can be separated from the clamping groove.

5. The diverter switch according to claim 1, wherein the switch assembly further comprises a first stop member and a second spring member;

The first limiting piece is arranged on the switch piece, one end of the second elastic piece is propped against the first limiting piece, the other end of the second elastic piece is propped against the first movable portion, and the second elastic piece provides elastic force close to the first fixed portion for the first movable portion.

6. The diverter switch according to claim 1, wherein the switch assembly further comprises a second movable portion and a second fixed portion;

the second movable part is connected with the switch piece, and comprises a second movable contact, and the second fixed part comprises a second fixed contact;

when the switch piece enables the first moving contact to be in contact with the first fixed contact, the second moving contact is also in contact with the second fixed contact.

7. The diverter switch according to claim 6, wherein the switch assembly further comprises a second stop member and a third spring member;

the second limiting piece is arranged on the switch piece, one end of the third elastic piece abuts against the second limiting piece, the other end of the third elastic piece abuts against the second movable portion, and the third elastic piece provides elastic force close to the second fixed portion for the second movable portion.

8. The diverter switch according to claim 1, wherein said diverter switch comprises a drive assembly and two of said switch assemblies, said drive member being connected to said drive assembly, said drive assembly being connected to both of said switch assemblies;

The driving piece can drive the transmission assembly to rotate along two opposite directions, so that the first moving contact of one first movable part is contacted with the first fixed contact of the first fixed part, and the first moving contact of the other first movable part is separated from the first fixed contact of the first fixed part.

9. The diverter switch according to claim 8, wherein said drive assembly comprises a gear and two racks, said racks being provided on each of said switch members, said gear being engaged with each of said racks.

10. A charging system comprising a charging module and a change-over switch according to any one of claims 1 to 9;

the charging module comprises a first electric connector, and the first electric connector is electrically connected with the first static contact.

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