CN218996543U - Actuating mechanism, charge-discharge system and vehicle - Google Patents

Abstract

The application discloses actuating mechanism, charge-discharge system and vehicle, actuating mechanism includes: the fixed contact assembly comprises a first fixed contact, a second fixed contact, a third fixed contact and a fourth fixed contact; the movable contact plate assembly comprises a first contact plate, a second contact plate and an insulation support, wherein the insulation support is connected with the first contact plate and the second contact plate and used for insulating the first contact plate and the second contact plate; the driving assembly is used for driving the movable touch plate assembly to switch between a first position and a second position; when the movable contact plate assembly is positioned at the first position, the first contact plate is contacted with the first fixed contact and the second fixed contact to form conductive connection, and the second contact plate is contacted with the third fixed contact and the fourth fixed contact to form conductive connection; when the movable contact plate assembly is in the second position, the first contact plate is separated from the first fixed contact and the second fixed contact, and the second contact plate is separated from the third fixed contact and the fourth fixed contact. According to the actuating mechanism, the charging and discharging system and the vehicle, the two-line on-off control device can be used for simultaneously controlling on-off of two lines.

Description

Actuating mechanism, charge-discharge system and vehicle

Technical Field

The application relates to the technical field of switching devices, in particular to an actuating mechanism, a charging and discharging system and a vehicle.

Background

Currently, in a dc charging circuit of an automobile charging system, a charging positive electrode contactor is generally disposed on a positive electrode charging line, and a charging negative electrode contactor is disposed on a negative electrode charging line, and the charging positive electrode contactor and the charging negative electrode contactor are used for simultaneously controlling on and off of the positive electrode charging line and the negative electrode charging line. The scheme of setting two contactors for control has the problems of high cost, large occupied space and heavy weight.

There is therefore a need for an improvement to at least partially solve the above-mentioned problems.

Disclosure of Invention

In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the utility model is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

In order to solve the above problems at least in part, according to a first aspect of the present utility model, there is provided an action mechanism comprising:

the fixed contact assembly comprises a first fixed contact, a second fixed contact, a third fixed contact and a fourth fixed contact;

the movable contact plate assembly comprises a first contact plate, a second contact plate and an insulation support, wherein the insulation support is connected with the first contact plate and the second contact plate and used for insulating the first contact plate and the second contact plate;

the driving assembly is used for driving the movable touch plate assembly to switch between a first position and a second position;

when the movable contact plate assembly is positioned at the first position, the first contact plate is in contact with the first fixed contact and the second fixed contact to form conductive connection, and the second contact plate is in contact with the third fixed contact and the fourth fixed contact to form conductive connection; when the movable contact plate assembly is in the second position, the first contact plate is separated from the first fixed contact and the second fixed contact, and the second contact plate is separated from the third fixed contact and the fourth fixed contact.

Illustratively, the movable contact plate assembly is provided with a driven piece;

the driving assembly comprises an electromagnetic coil and an elastic reset piece, wherein the electromagnetic coil is used for generating a magnetic field when the electromagnetic coil is electrified to drive the driven piece to drive the movable touch plate assembly to move to the first position, and the elastic reset piece is used for driving the movable touch plate assembly to move from the first position to the second position when the electromagnetic coil is powered off.

Illustratively, the movable contact plate assembly includes a connecting rod, a first end of which is connected to the insulating bracket;

the driven piece comprises a magnet or metal, the magnet or the metal is arranged on the connecting rod and/or the insulating bracket, and when the driven piece is a magnet, one side of the magnet facing the electromagnetic coil and one side of the electromagnetic coil facing the magnet have the same magnetic pole;

the elastic reset piece comprises a spring, a first end of the spring is connected with a second end of the connecting rod or the insulating bracket, and the second end of the spring is fixed;

the driving assembly further comprises a driving power supply, wherein the driving power supply is connected with the electromagnetic coil and used for adjusting the power of the electromagnetic coil.

Illustratively, the action mechanism comprises an outer shell, and a first bracket, a second bracket and a third bracket which are arranged in the outer shell, wherein the second bracket is positioned between the first bracket and the third bracket, and the first bracket is an insulating piece;

the fixed contact assembly is arranged on the first bracket;

the first touch plate and the second touch plate are positioned between the first bracket and the second bracket;

an inner shell is fixedly arranged on one side, facing the first support, or one side, facing the third support, of the second support, the second end of the connecting rod is inserted into the inner shell, the first end of the spring is connected with the second end of the connecting rod, the second end of the spring is connected with the inner shell, and when the inner shell is fixedly arranged on one side, facing the third support, of the second support, a through hole part is formed in the second support, and the second end of the connecting rod penetrates through the through hole part and is inserted into the inner shell;

the electromagnetic coil is arranged between the second bracket and the third bracket.

Illustratively, the maximum deformation amount of the spring is greater than the distance that the movable contact plate assembly moves when switching from the first position to the second position;

the spring is configured to be located in the inner housing when the movable contact plate assembly is in the first position and the second position.

Illustratively, the actuating mechanism further includes a position detecting component disposed on the first bracket or on the outer housing between the first bracket and the second bracket, for detecting whether the movable contact plate component is in the first position.

Illustratively, the position detection assembly includes a micro switch or an opto-electronic switch.

Illustratively, the actuating mechanism further includes an arc extinguishing assembly disposed on the first bracket or on the outer housing between the first bracket and the second bracket for extinguishing an arc between the first touch plate and the first and second stationary contacts, and for extinguishing an arc between the second touch plate and the third and fourth stationary contacts.

Illustratively, the arc suppressing assembly includes a metal grid.

Illustratively, the actuating mechanism further comprises a damping spring, and the damping spring is sleeved on the connecting rod;

when an inner shell is fixedly arranged on one side, facing the first support, of the second support, two ends of the damping spring are respectively used for being abutted with the insulating support and the inner shell;

when the second support faces one side of the third support and is fixedly provided with an inner shell, two ends of the damping spring are respectively used for being abutted with the insulating support and the second support.

According to a second party cat of the present utility model, there is provided a charge-discharge system comprising a power source and an action mechanism as described above;

the first static contact in the action mechanism is electrically connected with the positive electrode of the power supply, the second static contact is electrically connected with the positive electrode of the equipment, the third static contact is electrically connected with the negative electrode of the power supply, and the fourth static contact is electrically connected with the negative electrode of the equipment, wherein the equipment is at least one of charging equipment, equipment to be charged and a charging interface.

According to a third aspect of the present utility model, there is provided a vehicle comprising the charge-discharge system as described above.

According to action mechanism, charge-discharge system and vehicle of this application, actuating mechanism can drive movable contact plate subassembly makes first static contact and second static contact and third static contact and fourth static contact switch on and break off simultaneously, that is to say that action mechanism of this application can be used for simultaneously controlling the switch on and break off of connecting in two lines of first, second static contact and third, fourth static contact to action mechanism of this application can replace two contactors of current simultaneous control two line break-make, possesses advantage with low costs, small, light in weight.

Drawings

The following drawings of the present application are included to provide an understanding of the present application as part of the present application. The drawings illustrate embodiments of the present application and their description to explain the principles and devices of the present application. In the drawings of which there are shown,

FIG. 1 is a schematic cross-sectional view of an actuation mechanism according to one embodiment of the application;

FIG. 2 is a schematic bottom view of the stationary contact assembly of FIG. 1;

FIG. 3 is a schematic top view of the movable contact assembly of FIG. 1;

FIG. 4 is a schematic cross-sectional view of the movable contact assembly of FIG. 1;

FIG. 5 is a schematic cross-sectional view of an actuation mechanism according to one embodiment of the application;

FIG. 6 is a schematic cross-sectional view of an actuation mechanism according to one embodiment of the application;

fig. 7 is a schematic structural diagram of a charge-discharge system according to an embodiment of the present application.

Reference numerals illustrate:

100-fixed contact assemblies, 110-first fixed contacts, 120-second fixed contacts, 130-third fixed contacts, 140-fourth fixed contacts, 200-movable contact plate assemblies, 210-first contact plates, 220-second contact plates, 230-insulating supports, 240-connecting rods, 241-first rod sections, 242-second rod sections, 300-driving assemblies, 310-electromagnetic coils, 320-elastic reset pieces, 321-springs, 330-inner shells, 400-outer shells, 500-first supports, 600-second supports, 700-third supports, 800-microswitches and 900-damping springs;

10-action mechanism, 20-power supply and 30-equipment.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application may be practiced without one or more of these details. In other instances, some features well known in the art have not been described in order to avoid obscuring the present application.

It should be understood that the present application may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art. In the drawings, the size of layers and regions, as well as the relative sizes, may be exaggerated for clarity. Like numbers refer to like elements throughout.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present application.

Spatially relative terms, such as "under," "below," "beneath," "under," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation depicted in the figures.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of the associated listed items.

Embodiments of the utility model are described herein with reference to cross-sectional illustrations that are schematic illustrations of idealized embodiments (and intermediate structures) of the present application. In this way, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, embodiments of the present application should not be limited to the particular shapes shown herein, but rather include deviations in shapes that result, for example, from manufacturing. Thus, the illustrations shown in the figures are schematic in nature, their shapes are not intended to illustrate the actual shape of a device and are not intended to limit the scope of the present application.

An action mechanism according to an embodiment of the present application is exemplarily described with reference to fig. 1 to 4, and includes a stationary contact assembly 100, a movable contact assembly 200, and a driving assembly 300.

The stationary contact assembly 100 includes a first stationary contact 110, a second stationary contact 120, a third stationary contact 130, and a fourth stationary contact 140. The first, second, third and fourth fixed contacts 110, 120, 130, 140 are each configured to contact the moving contact assembly at a first end thereof and are configured to be connectable with a conductive wire or a connection terminal on the conductive wire at a second end thereof. In the embodiment of the present application, the cross-sectional shapes of the first fixed contact 110, the second fixed contact 120, the third fixed contact 130, and the fourth fixed contact 140 are circular. In other embodiments, the cross-sectional shapes of the first, second, third, and fourth stationary contacts 110, 120, 130, 140 may be square to other suitable shapes.

The movable contact assembly 200 includes a first contact 210, a second contact 220, and an insulating support 230. The insulation support 230 is connected to the first and second contact plates 210 and 220 for insulating the first and second contact plates 210 and 220. In this embodiment, the first touch plate 210 and the second touch plate 220 are elongated, the dimension of the first touch plate 210 in the length direction is greater than or equal to the distance between the first fixed contact 110 and the second fixed contact 120, and the dimension of the second touch plate 220 in the length direction is greater than or equal to the distance between the third fixed contact 130 and the fourth fixed contact 140. The insulating support 230 is disposed between the first touch plate 210 and the second touch plate 220, and is fixedly connected to the first touch plate 210 and the second touch plate 220, and the first touch plate 210, the second touch plate 220 and the insulating support 230 are integrally disposed in an H shape. The materials of the first touch pad 210 and the second touch pad 220 may be metal or other conductive materials. The insulating support 230 may be made of hard insulating plastic. In other embodiments, the insulating support 230 may have a plurality, for example, the insulating support 230 may include at least two supports disposed in parallel, the at least two supports being located between the first and second touch panels 210 and 220 and perpendicular to the first and second touch panels 210 and 220, and both ends of each of the at least two supports being fixedly connected to the first and second touch panels 210 and 220, respectively. In other embodiments, the insulating support 230 may include two supports disposed in an intersecting manner, the two supports may be disposed between the first touch plate 210 and the second touch plate 220 in an X-shape, and two ends of each of the two supports are fixedly connected to the first touch plate 210 and the second touch plate 220, respectively. It should be noted that the shape and the number of the insulating holders 230 are not limited to the above, and those skilled in the art can flexibly set the insulating holders as required, as long as they can connect the first contact plate 210 and the second contact plate 220 to each other so as to be synchronously operated and insulated from each other.

The driving assembly 300 is used for driving the movable contact plate assembly 200 to switch between a first position and a second position. When the movable contact assembly 200 is at the first position, the first contact 210 contacts the first fixed contact 110 and the second fixed contact 120 to form a conductive connection, and the second contact 220 contacts the third fixed contact 130 and the fourth fixed contact 140 to form a conductive connection, so that conductive wires respectively connected to the first fixed contact 110 and the second fixed contact 120 can be conducted, and conductive wires respectively connected to the third fixed contact 130 and the fourth fixed contact 140 can be conducted. When the movable contact assembly 200 is in the second position (the movable contact assembly 200 in fig. 1 is in the second position), the first contact 210 is separated from the first fixed contact 110 and the second fixed contact 120, and the second contact 220 is separated from the third fixed contact 130 and the fourth fixed contact 140, so that the conductive wires respectively connected to the first fixed contact 110 and the second fixed contact 120 can be disconnected, and the conductive wires respectively connected to the third fixed contact 130 and the fourth fixed contact 140 can be disconnected.

According to the actuating mechanism of the present application, the driving component 300 can drive the movable contact plate component 200 to make the first static contact 110 and the second static contact 120 and the third static contact 130 and the fourth static contact 140 be simultaneously turned on and turned off, that is, the actuating mechanism of the present application can be used for simultaneously controlling the on and off of two lines connected to the first static contact 120 and the second static contact 120 and the third static contact 140 (that is, the conductive lines connected to the first static contact 110 and the second static contact 120 and the conductive lines connected to the first static contact 110 and the second static contact 120 respectively), so that the actuating mechanism of the present application can replace the existing two contactors capable of simultaneously controlling the on and off of the two lines, and has the advantages of low cost, small volume and light weight.

In the embodiment of the present application, the actuating mechanism includes an outer housing 400, and a first bracket 500, a second bracket 600, and a third bracket 700 disposed in the outer housing 400, the second bracket 600 being located between the first bracket 500 and the third bracket 700. In the embodiment of the present application, the outer case 400 is in a cylindrical shape with both ends open up and down and the other sides closed, and the first bracket 500, the second bracket 600 and the third bracket 700 are sequentially disposed in the outer case 400 at intervals from top to bottom and connected to the outer case 400.

The fixed contact assembly 100 is disposed on the first bracket 500, and a first end of the fixed contact assembly 100 (i.e., a first end of the first fixed contact 110, the second fixed contact 120, the third fixed contact 130, and the fourth fixed contact 140) is located between the first bracket 500 and the second bracket 600, and a second end of the fixed contact assembly 100 (i.e., a second end of the first fixed contact 110, the second fixed contact 120, the third fixed contact 130, and the fourth fixed contact 140) is located at a side of the first bracket 500 away from the second bracket 600. The first bracket 500 is an insulating member, that is, the first bracket 500 may be made of an insulating material (e.g., insulating plastic, etc.) or subjected to an insulating process (e.g., forming an insulating film layer on a bracket surface by deposition, etc.), so that the first, second, third, and fourth fixed contacts 110, 120, 130, and 140 disposed thereon are insulated from each other.

In the present embodiment, the insulating holder 230, the first contact plate 210, and the second contact plate 220 are located between the second holder 600 and the first holder 500. The movable contact assembly 200 further includes a connection rod 240, a first end of the connection rod 240 is connected to the insulating support 230, a through hole matched with the connection rod 240 is provided in the second support 600, and the connection rod 240 is axially movably inserted into the through hole, that is, the connection rod 240 can move in the through hole along the axial direction thereof, so that the insulating support 230, the first contact plate 210 and the second contact plate 220 can be driven to move along the axial direction thereof, and the movable contact assembly 200 can be switched between the first position and the second position. The second end of the connection rod 240 is located between the second bracket 600 and the third bracket 700. The connection rod 240 includes a first rod segment 241 and a second rod segment 242, the cross sections of the first rod segment 241 and the second rod segment 242 may be circular or other suitable shapes, the first rod segment 241 is located between the first bracket 500 and the second bracket 600, the cross section area of the first rod segment 241 in the axial direction thereof is larger than the cross section area of the second rod segment 242 in the axial direction thereof, the shape of the through hole is matched with the shape of the second rod segment 242, and the second rod segment 242 is penetrated in the through hole. Thus, the second bracket 600 may be used to limit the movement of the first lever segment 241, i.e., the range of movement of the movable contact plate assembly 200. In other embodiments, the connecting rod 240 may not have the first and second rod segments 241 and 242, but the cross-sectional area remains uniform throughout the axial direction thereof. In this embodiment, the movable contact assembly 200 is further provided with a driven member, and the driven member is used to drive the movable contact assembly 200 to move under the action of the external magnetic field, so as to switch between the first position and the second position. The driven member may be a magnet or metal (e.g., iron or other metal that is movable under an external magnetic field, or magnetized metal in some embodiments) that may be disposed on the connecting rod 240 and/or the insulating support 230.

In this embodiment, the driving assembly 300 includes an electromagnetic coil 310 and an elastic reset element 320, where the electromagnetic coil 310 is disposed between the second bracket 600 and the third bracket 700, for example, fixed on the third bracket 700, and may be a coil formed by winding an enameled wire, for generating a magnetic field when the current is applied, where the magnetic field generates a repulsive force on a driven element on the movable contact plate assembly 200, and drives the driven element to drive the movable contact plate assembly 200 to move upward from the second position to the first position, so that the first contact plate 210 contacts the first fixed contact 110 and the second fixed contact 120 to form a conductive connection, and the second contact plate 220 contacts the third fixed contact 130 and the fourth fixed contact 140 to form a conductive connection. For example, when the driven member is a magnet, the side of the magnet facing the electromagnetic coil 310 and the side of the electromagnetic coil 310 facing the magnet may be both N-pole (or both S-pole), and like poles repel each other, so that the magnetic field generated by the electromagnetic coil 310 may push the magnet to move away from the direction of the electromagnetic coil 310, and further, the magnet may move the movable contact assembly 200 upward from the second position to the first position. In some embodiments, a core may be provided in the middle of the electromagnetic coil 310 to enhance the magnetic field generated. In some embodiments, the middle of the electromagnetic coil 310 may be a cavity without a core. In some embodiments, the connecting rod 240 is disposed on the central axis of the electromagnetic coil 310, and the driven member disposed on the connecting rod 240 and/or the insulating support 230 is also disposed on the central axis of the electromagnetic coil 310, so that the direction of the repulsive force generated by the electromagnetic coil 310 is consistent with the axial direction of the connecting rod 240, and the movable contact plate assembly 200 can be driven to move upwards from the second position to the first position more stably. The elastic reset element 320 is used for driving the movable contact assembly 200 to move downwards from the first position to the second position when the electromagnetic coil 310 is powered off and the repulsive force is eliminated. The elastic restoring member 320 may be a spring or other suitable elastic member, and a first end of the spring is connected to a second end of the connecting rod 240, and a second end of the spring is fixed. When the electromagnetic coil 310 drives the magnetic member to drive the movable contact plate assembly 200 to move upwards to the first position, the repulsive force generated by the magnetic field is larger than the self-elastic force of the spring, so that the spring is changed into a stretched state from an initial state, and when the repulsive force generated by the power failure of the electromagnetic coil 310 disappears, the spring tends to recover to the initial state under the action of the self-elastic force, and then the movable contact plate assembly 200 is driven to move downwards from the first position to the second position. The maximum deformation amount of the spring (i.e., the difference between the length of the spring when stretched to the limit and the length of the spring when unstretched) is greater than the distance that the movable contact assembly 200 moves when switching from the first position to the second position, i.e., the maximum deformation amount of the spring is greater than the distance between the first contact 210 (and the second contact 220) and the stationary contact assembly 100 when the movable contact assembly 200 is in the second position, so that the spring can stably drive the movable contact assembly 200 to move downwards from the first position to the second position, and the spring cannot fail due to the movement of the movable contact assembly 200. Specifically, an inner housing 330 is fixedly provided at a side of the second bracket 600 facing the third bracket 700, and the inner housing 330 surrounds the second end of the connection rod 240. The inner housing 330 may be fixedly connected to the second bracket 600 by means of screw connection, welding, gluing, etc., the inner housing 330 may have a prismatic, cylindrical or truncated cone-shaped receiving space therein, the top of which has a through hole through which the second end of the connecting rod 240 is inserted into the inner housing 300, i.e., the second end of the connecting rod 240 extends into the receiving space in the inner housing 300 through the through hole, and the diameter of the through hole may be slightly larger than the diameter of the connecting rod 240 (i.e., the diameter of the second rod section 242), such that the connecting rod 240 can only move along the axial direction thereof in the through hole. A resilient return member 320 (i.e., a spring) is located in the inner housing 300, a first end of the spring is connected to a second end of the connecting rod 240, and a second end of the spring is connected to a bottom of the inner housing 300. The springs are configured to be located in the inner housing 300 when the movable contact assembly 200 is in both the first and second positions, i.e., the springs do not protrude outside the housing 300 due to movement of the movable contact assembly 200. Accordingly, the connection rod 240 is located in the through hole on the inner case 300 when the movable contact plate assembly 200 is in the first position and the second position. In this embodiment, the actuating mechanism further includes a damping spring 900, where the damping spring 900 is sleeved on the connecting rod 240, that is, on the first rod segment 241, and located between the insulating support 230 and the second support 600, and two ends of the damping spring 900 are respectively used to abut against the insulating support 230 and the second support 600. The length of the normal state thereof may be configured to be slightly greater than the length of the first lever section 241 so that the damper spring 900 may be compressed when the movable contact assembly 200 moves downward from the first position to the second position, reducing the impact of the movable contact assembly 200 on the second bracket 600.

Referring to fig. 5, in another embodiment of the present application, the inner housing 330 may be fixedly disposed on a side of the second support 600 facing the first support 500, where the movable contact assembly 200 (including the first contact plate 210, the second contact plate 220, the insulating support 230 and the connecting rod 240) is completely located between the first support and the second support, the second support also does not need to be provided with a through hole, the damper spring 900 is sleeved on the connecting rod 240 (i.e. sleeved on the first rod segment 241), and is located between the insulating support 230 and the inner housing 330, and two ends of the damper spring 900 are respectively used to abut against the insulating support 230 and the inner housing 330.

In other embodiments, the inner case 330 may not be provided and the elastic restoring member 320 may not be provided between the second and third brackets 600 and 700, but the elastic restoring member 320 may be provided between the first and second brackets 500 and 600. Referring to fig. 6, the embodiment shown in fig. 6 is different from the embodiment shown in fig. 1 in that the inner case 330 is not provided and the elastic restoring member is not provided between the second bracket 600 and the third bracket 700, and the elastic restoring member in fig. 6 is provided between the first bracket 500 and the second bracket 600, and includes two springs 321 symmetrically provided at both sides of the connection rod 240, first ends of the two springs 321 being connected to the insulation bracket 230, and second ends of the two springs 321 being connected to the second bracket 600. The two springs 321 are configured to have the same length and elastic properties, so that the telescopic state of the two springs 321 is always consistent when the movable contact assembly 200 is switched between the first position and the second position, thereby enabling the movable contact assembly 200 to be balanced. In some embodiments, the elastic restoring member shown in fig. 6 may be replaced with at least one spring provided on the connecting rod 240, the first end of the spring being connected to the insulating bracket 230, and the second end of the spring being connected to the second bracket 600.

In the embodiment of the present application, the driving assembly 300 further includes a driving power source, which is connected to the electromagnetic coil 310, for adjusting the power of the electromagnetic coil 310. Specifically, the driving power source may be an energy-saving circuit board, which may be configured to first provide a larger power (e.g., 6W or other suitable power) to the electromagnetic coil 310 to drive the movable contact plate assembly 200 from the second position to the first position, and then provide a smaller power (e.g., 2W or other suitable power) to the electromagnetic coil 310 to keep the movable contact plate assembly 200 in the first position, so that the energy consumption of the actuating mechanism may be effectively reduced.

In this embodiment, the actuating mechanism further includes a position detecting component disposed on the first bracket 500 or on the outer housing 400 between the first bracket 500 and the second bracket 600, for detecting whether the movable contact board assembly 200 is in the first position. In particular, the position detection assembly may include a micro switch 800, which micro switch 800 may be disposed on the first bracket 500 on a side of the first bracket 500 facing the second bracket 600, and may be configured to be triggered by the insulating bracket 230 when the movable contact assembly 200 is in the first position, and not triggered when the movable contact assembly 200 is in the second position. The position detection assembly may also include a photoelectric switch, which may be disposed on the outer housing 400 between the first and second brackets 500, 600, which may be configured to be activated when the movable contact assembly 200 is in the first position and to be deactivated when the movable contact assembly 200 is in the second position. The position detecting assembly may be a position sensor other than the micro switch and the photoelectric switch, as long as it can effectively detect the current position (the current first position or the second position) of the movable contact plate assembly 200. The position detection assembly is arranged to judge whether the static contact assembly 100 and the movable contact assembly 200 are sintered or not through the position detection assembly, and the number of times of connection and disconnection of the static contact assembly 100 and the movable contact assembly 200 can be recorded through the position detection assembly, so that the service life of the actuating mechanism can be recorded.

In this embodiment, the actuating mechanism further includes an arc extinguishing assembly disposed on the first bracket 500 or on the outer housing 400 between the first bracket 500 and the second bracket 600, for extinguishing an arc between the first touch plate 210 and the first and second fixed contacts 110 and 120, and for extinguishing an arc between the second touch plate 220 and the third and fourth fixed contacts 130 and 140. Specifically, the arc extinguishing assembly may include a metal grid sheet, which may be a plurality of steel sheets disposed in parallel and spaced apart, which may be fixed on the first bracket 500 or on the outer housing 400 between the first and second brackets 500 and 600, and adjacent to the engagement position of the first contact plate 210 with the first and second fixed contacts 110 and 120 and adjacent to the engagement position of the second contact plate 220 with the third and fourth fixed contacts 130 and 140. The electric arc between the touch plate and the static contact can be pulled into the metal grid sheet under the action of magnetic force, and one long arc is divided into a plurality of sections of short arcs, so that the energy of the electric arc is low, and the short arcs can be extinguished under the cooling of air. In other embodiments, the arc extinguishing assembly may also include a blow-out assembly or a slit assembly, as may be desired by one skilled in the art.

Referring to fig. 7, the present application further provides a charging and discharging system, which includes a power source 20 and an actuating mechanism 10, where the actuating mechanism 10 is the actuating mechanism in the above embodiment. The first stationary contact 110 in the actuating mechanism 10 is electrically connected to the positive electrode of the power supply 20, the second stationary contact 120 is electrically connected to the positive electrode of the device 30, the third stationary contact 130 is electrically connected to the negative electrode of the power supply 20, and the fourth stationary contact 140 is electrically connected to the negative electrode of the device 30. The device 30 may be at least one of a charging device (e.g., a charging peg, etc.), a device to be charged (e.g., an electronic device to be charged), and a charging interface. Therefore, the connection and disconnection of the positive electrode of the power supply 20 and the positive electrode of the equipment 30, and the connection and disconnection of the negative electrode of the power supply 20 and the negative electrode of the equipment 30 can be simultaneously controlled through the action mechanism 10, so that the charge and discharge of the power supply 20 can be realized, the existing two contactors for simultaneously controlling the connection and disconnection of the two circuits can be replaced, and the device has the advantages of low cost, small size and light weight. It should be noted that, the electrical connection between the static contact and the power supply 20 and the device 30 may be direct or indirect electrical connection, and one or more electronic devices may be configured between the static contact and the power supply 20 and the device 30, which may be set by any person skilled in the art according to needs.

Specifically, in some embodiments, the charging and discharging system may be a charging and discharging system on a vehicle, the power source 20 may be a battery pack on the vehicle, and a shunt and a pre-charging circuit are disposed between a positive electrode of the battery pack and the first stationary contact 110, and the pre-charging circuit is used for suppressing an impact current during power-up. The positive pole of the battery is connected to a first end of the current divider 20, a second end of the current divider 20 is connected to a first end of the pre-charge circuit, and a second end of the pre-charge circuit is connected to the first stationary contact 110. The pre-charge circuit 40 includes a positive contactor, a pre-charge contactor, and a pre-charge resistor, wherein the pre-charge contactor and the pre-charge resistor are connected in series, and the positive contactor is integrally connected in parallel with the pre-charge contactor and the pre-charge resistor. A negative electrode contactor is arranged between the negative electrode of the battery pack and the third fixed contact 130, the negative electrode of the battery pack is connected with the first end of the negative electrode contactor, and the second end of the negative electrode contactor is connected with the third fixed contact 130. The device 30 is a charging device, such as a charging post, so that when both the positive and negative contactors are closed and the movable contact assembly 200 is in the first position (when the first contact 210 is in contact with the first and second stationary contacts 110 and 120 to form a conductive connection, and the second contact 220 is in contact with the third and fourth stationary contacts 130 and 140 to form a conductive connection), the positive and negative charging lines are conductive, and the charging device can charge the battery pack. Further, the second end of the pre-charging circuit 40 is further connected to the positive electrode of the electric device through a positive electrode discharging line, and the second end of the negative electrode contactor is further connected to the negative electrode of the electric device through a negative electrode discharging line, so that when the positive electrode contactor and the negative electrode contactor are both closed and the movable contact plate assembly 200 is at the second position (when the first contact plate 210 is separated from the first fixed contact 110 and the second fixed contact 120, and the second contact plate 220 is separated from the third fixed contact 130 and the fourth fixed contact 140), the positive electrode charging line is disconnected, the positive electrode discharging line is conducted, and the battery pack can supply power to the electric device through the positive electrode discharging line and the negative electrode discharging line. For the charge and discharge system of the embodiment of the application, the action mechanism 10 can replace two contactors on a conventional positive and negative charge line, has the advantages of low cost, small volume and light weight, and can reduce the cost and the volume of the charge and discharge system on a vehicle and reduce the occupation of the vehicle space.

The application also provides a vehicle, which comprises the charging and discharging system. The vehicle herein may be a pure electric vehicle, a hybrid vehicle, and is not particularly limited in this application.

Although the illustrative embodiments have been described herein with reference to the accompanying drawings, it is to be understood that the above illustrative embodiments are merely illustrative and are not intended to limit the scope of the present application thereto. Various changes and modifications may be made therein by one of ordinary skill in the art without departing from the scope and spirit of the present application. All such changes and modifications are intended to be included within the scope of the present application as set forth in the appended claims.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, e.g., the division of the elements is merely a logical functional division, and there may be additional divisions when actually implemented, e.g., multiple elements or components may be combined or integrated into another device, or some features may be omitted or not performed.

In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the present application may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in order to streamline the application and aid in understanding one or more of the various inventive aspects, various features of the application are sometimes grouped together in a single embodiment, figure, or description thereof in the description of exemplary embodiments of the application. However, the method of this application should not be construed to reflect the following intent: i.e., the claimed application requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this application.

It will be understood by those skilled in the art that all of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or units of any method or apparatus so disclosed, may be combined in any combination, except combinations where the features are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the present application and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

It should be noted that the above-mentioned embodiments illustrate rather than limit the application, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims.

Claims (12)

1. An action mechanism, comprising:

the fixed contact assembly comprises a first fixed contact, a second fixed contact, a third fixed contact and a fourth fixed contact;

the movable contact plate assembly comprises a first contact plate, a second contact plate and an insulation support, wherein the insulation support is connected with the first contact plate and the second contact plate and used for insulating the first contact plate and the second contact plate;

the driving assembly is used for driving the movable touch plate assembly to switch between a first position and a second position;

when the movable contact plate assembly is positioned at the first position, the first contact plate is in contact with the first fixed contact and the second fixed contact to form conductive connection, and the second contact plate is in contact with the third fixed contact and the fourth fixed contact to form conductive connection; when the movable contact plate assembly is in the second position, the first contact plate is separated from the first fixed contact and the second fixed contact, and the second contact plate is separated from the third fixed contact and the fourth fixed contact.

2. The action mechanism according to claim 1, wherein,

the movable contact plate assembly is provided with a driven piece;

the driving assembly comprises an electromagnetic coil and an elastic reset piece, wherein the electromagnetic coil is used for generating a magnetic field when the electromagnetic coil is electrified to drive the driven piece to drive the movable touch plate assembly to move to the first position, and the elastic reset piece is used for driving the movable touch plate assembly to move from the first position to the second position when the electromagnetic coil is powered off.

3. The action mechanism according to claim 2, wherein,

the movable contact plate assembly comprises a connecting rod, and a first end of the connecting rod is connected with the insulating bracket;

the driven piece comprises a magnet or metal, the magnet or the metal is arranged on the connecting rod and/or the insulating bracket, and when the driven piece is a magnet, one side of the magnet facing the electromagnetic coil and one side of the electromagnetic coil facing the magnet have the same magnetic pole;

the elastic reset piece comprises a spring, a first end of the spring is connected with a second end of the connecting rod or the insulating bracket, and the second end of the spring is fixed;

the driving assembly further comprises a driving power supply, wherein the driving power supply is connected with the electromagnetic coil and used for adjusting the power of the electromagnetic coil.

4. The action mechanism according to claim 3, wherein,

the action mechanism comprises an outer shell, and a first support, a second support and a third support which are arranged in the outer shell, wherein the second support is positioned between the first support and the third support, and the first support is an insulating piece;

the fixed contact assembly is arranged on the first bracket;

the first touch plate and the second touch plate are positioned between the first bracket and the second bracket;

an inner shell is fixedly arranged on one side, facing the first support, or one side, facing the third support, of the second support, the second end of the connecting rod is inserted into the inner shell, the first end of the spring is connected with the second end of the connecting rod, the second end of the spring is connected with the inner shell, and when the inner shell is fixedly arranged on one side, facing the third support, of the second support, a through hole part is formed in the second support, and the second end of the connecting rod penetrates through the through hole part and is inserted into the inner shell;

the electromagnetic coil is arranged between the second bracket and the third bracket.

5. The action mechanism according to claim 4, wherein,

the maximum deformation of the spring is larger than the moving distance of the movable contact plate assembly when the first position is switched to the second position;

the spring is configured to be located in the inner housing when the movable contact plate assembly is in the first position and the second position.

6. The action mechanism according to claim 4, wherein,

the action mechanism further comprises a position detection assembly, wherein the position detection assembly is arranged on the first support or on the outer shell between the first support and the second support and is used for detecting whether the movable touch plate assembly is positioned at the first position.

7. The action mechanism according to claim 6, wherein,

the position detection assembly comprises a micro switch or a photoelectric switch.

8. The action mechanism according to claim 4, wherein,

the action mechanism further comprises an arc extinguishing assembly, wherein the arc extinguishing assembly is arranged on the first support or on the outer shell between the first support and the second support, is used for extinguishing the electric arcs between the first touch plate and the first fixed contact and between the second fixed contact, and is used for extinguishing the electric arcs between the second touch plate and the third fixed contact and between the second touch plate and the fourth fixed contact.

9. The action mechanism according to claim 8, wherein,

the arc extinguishing assembly comprises a metal grid plate.

10. The action mechanism according to claim 4, wherein,

the action mechanism further comprises a damping spring, and the damping spring is sleeved on the connecting rod;

when the inner shell is fixedly arranged on one side, facing the first support, of the second support, two ends of the damping spring are respectively used for being abutted with the insulating support and the inner shell;

when the second support faces one side of the third support and is fixedly provided with the inner shell, two ends of the damping spring are respectively used for being abutted with the insulating support and the second support.

11. A charge-discharge system is characterized in that,

the charge-discharge system comprising a power source and the action mechanism according to any one of claims 1 to 10;

the first static contact in the action mechanism is electrically connected with the positive electrode of the power supply, the second static contact is electrically connected with the positive electrode of the equipment, the third static contact is electrically connected with the negative electrode of the power supply, and the fourth static contact is electrically connected with the negative electrode of the equipment, wherein the equipment is at least one of charging equipment, equipment to be charged and a charging interface.

12. A vehicle is characterized in that,

comprising the charge-discharge system according to claim 11.

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