Contactor, charging distribution system, vehicle and charging pile

Abstract

The present invention discloses a contactor (100) including a terminal group, a conductive bus bar (3), a micro switch (4), and a drive assembly (5), the terminal group including a first terminal (1) and a second terminal (2), the conductive bus bar (3) including a first conductive portion (31) and a second conductive portion (32) movably connected to each other, the first conductive portion (31) being connected to the first terminal (1), the micro switch (4) being connected to the second conductive portion (32), the micro switch (4), the conductive bus bar (3), and the terminal group all include at least two sets of micro switches (4) in a one-to-one correspondence, and the drive assembly (5) drives the at least two sets of micro switches (4) to rotate and drives the corresponding second conductive portion (32) to selectively disconnect or form a connection with the second terminal (2). Also disclosed are a charging and distribution system, a vehicle, and a charging pile. This contactor can realize synchronous conduction and disconnection of multiple high-voltage circuits, reduce the number of parts in the drive assembly, further reduce the number of risk points, make the shape of the contactor more compact, and are advantageous in realizing a design that is compact and lightweight.

Description

[Technical Field]

[0001] (CROSS-REFERENCE TO RELATED APPLICATIONS) This application is based on and claims priority from a Chinese patent application having application number 202111395077X and filing date November 23, 2021, the entire contents of which are incorporated herein by reference.

[0002] The present invention relates to the field of manufacturing electrical equipment, and in particular to a contactor, a charging and distribution system including the contactor, a vehicle including the charging and distribution system, and a charging pile including the contactor. [Background technology]

[0003] In the related art, the efficiency of the low-voltage circuit of the contactor is low, so the volume of the low-voltage circuit is large, which increases the volume of the entire contactor, resulting in poor heat dissipation performance, and it is difficult to achieve synchronous conduction and disconnection of multiple circuits, leaving room for improvement. Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention aims to solve at least one of the technical problems in the prior art, and therefore, an object of the present invention is to provide a contactor that can realize synchronous conduction and disconnection of multiple high-voltage circuits, is advantageous in heat dissipation, and has high safety and reliability. [Means for solving the problem]

[0005] A contactor according to an embodiment of the present invention includes a terminal group, a conductive bus bar, a microswitch, and a drive assembly, wherein the terminal group includes first and second terminals, the conductive bus bar includes a first conductive portion and a second conductive portion that are movably connected, the first conductive portion is connected to the first terminal, and the microswitch is connected to the second conductive portion, there are at least two sets of the microswitch, the conductive bus bar, and the terminal group, each of which corresponds to the other, and the drive assembly drives and rotates the at least two sets of the microswitches to drive the corresponding second conductive portion and selectively disconnect or establish a connection with the second terminal.

[0006] A contactor according to an embodiment of the present invention is provided with at least two sets of microswitches and conductive busbars, and the at least two sets of microswitches and conductive busbars share the same driving component, so that the same driving component controls the at least two sets of microswitches to rotate simultaneously, and drives the at least two sets of conductive busbars to rotate simultaneously, thereby achieving synchronous conduction and disconnection of multiple sets of high-voltage circuits. This reduces the number of components in the driving assembly, further reduces the number of risk points, makes the shape of the contactor more compact, and is advantageous for realizing a design that is smaller and lighter in weight.

[0007] In some embodiments of the contactor of the present invention, the drive assembly includes a drive coil and two sets of magnetic drive units, there are two sets of microswitches, each corresponding to one of the two sets of magnetic drive units, and the drive coil changes the magnetic state of the magnetic drive units to drive and rotate the microswitches.

[0008] In some embodiments of the contactor of the present invention, the drive assembly further includes a magnetic column and magnetic conductive plates connected to both ends of the magnetic column, the drive coil is wound around the outside of the magnetic column, and two sets of the magnetic drive units are located on both sides of the magnetic column, respectively, and are both connected to the two magnetic conductive plates.

[0009] In some embodiments of the contactor of the present invention, each set of the magnetic driving parts includes a first magnetic conductive piece and a second magnetic conductive piece arranged at a distance from each other, the first magnetic conductive piece is connected to a magnetic conductive plate at a first end of the magnetic column, and the second magnetic conductive piece is connected to a magnetic conductive plate at a second end of the magnetic column. The first end of the microswitch is provided with first and second magnetic poles arranged at a distance from each other, and the second end is provided with third and fourth magnetic poles arranged at a distance from each other, the first magnetic conductive piece extending between the first and second magnetic poles and being attracted to one of the first and second magnetic poles, and the second magnetic conductive piece extending between the third and fourth magnetic poles and being attracted to one of the third and fourth magnetic poles.

[0010] In some embodiments of the contactor of the present invention, the first magnetic conductive piece and the second magnetic conductive piece have opposite polarities, the first magnetic pole and the second magnetic pole have opposite polarities, and the third magnetic pole and the fourth magnetic pole have opposite polarities.

[0011] In some embodiments of the contactor of the present invention, the first magnetic conductive piece and the second magnetic conductive piece have opposite polarities, the first magnetic pole and the second magnetic pole both have opposite inner and outer polarities, and the inner polarity of the first magnetic pole and the inner polarity of the second magnetic pole are opposite, and the third magnetic pole and the fourth magnetic pole both have opposite inner and outer polarities, and the inner polarity of the third magnetic pole and the inner polarity of the fourth magnetic pole are opposite.

[0012] In a contactor according to some embodiments of the present invention, the first magnetic pole and the third magnetic pole are integrally molded, and the second magnetic pole and the fourth magnetic pole are integrally molded.

[0013] In some embodiments of the contactor of the present invention, a first magnet configured in a U-shape is provided at a first end of the microswitch, and both ends of the first magnet are configured as the first magnetic pole and the second magnetic pole, respectively, and a second magnet configured in a U-shape is provided at a second end of the microswitch, and both ends of the second magnet are configured as the third magnetic pole and the fourth magnetic pole, respectively.

[0014] In some embodiments of the contactor of the present invention, a first magnetic plate and a second magnetic plate are provided on both sides of the microswitch, a magnetic component is provided between the first magnetic plate and the second magnetic plate, both ends of the magnetic component have opposite polarities, the first magnetic plate and a first end of the magnetic component have the same polarity, the second magnetic plate and a second end of the magnetic component have the same polarity, both ends of the first magnetic plate are configured as the first magnetic pole and the third magnetic pole, respectively, and both ends of the second magnetic plate are configured as the second magnetic pole and the fourth magnetic pole, respectively.

[0015] In some embodiments of the contactor of the present invention, the microswitch includes a drive base and a clamping portion connected to the drive base, the first magnetic pole, the second magnetic pole, the third magnetic pole and the fourth magnetic pole are respectively provided at the four corners of the drive base, the clamping portion has a clamping opening, and the second conductive portion is interposed within the clamping opening.

[0016] In some embodiments of the contactor of the present invention, the first terminal and the second terminal are each arranged facing the conductive bus bar in a first direction, and at least one of the conductive bus bar, the first terminal, and the second terminal is arranged facing the drive assembly in a second direction, and the first direction is perpendicular to the second direction.

[0017] In some embodiments of the contactor of the present invention, the conductive busbar further includes a flexible connecting portion, the flexible connecting portion being connected between the first conductive portion and the second conductive portion, and the second conductive portion being configured to move toward or away from the second terminal by deformation of the flexible connecting portion.

[0018] A contactor according to some embodiments of the present invention further includes a sensor and a controller, wherein the sensor is provided in proximity to the first terminal, the second terminal, or the conductive bus bar and detects a circuit signal of the first terminal, the second terminal, or the conductive bus bar in real time, and the controller is electrically connected to the sensor and configured to control the drive assembly based on the circuit signal to disconnect or form an electrical connection between the second conductive portion and the second terminal.

[0019] In some embodiments of the contactor of the present invention, the controller obtains a temperature, a voltage, or a current of the first terminal or the second terminal or the conductive bus bar based on the circuit signal, and the controller is configured to disconnect the electrical connection between the second conductive portion and the second terminal when the temperature of the first terminal or the second terminal or the conductive bus bar is greater than a first temperature threshold, and / or when the voltage is greater than a first voltage threshold, and / or when the current is greater than a first current threshold.

[0020] In some embodiments of the contactor of the present invention, the controller is configured to form an electrical connection between the second conductive portion and the second terminal when a temperature of the first terminal or the second terminal or the conductive bus bar is less than a second temperature threshold, and / or when a voltage is less than a second voltage threshold, and / or when a current is less than a second current threshold, wherein the second temperature threshold is less than or equal to the first temperature threshold, the second voltage threshold is less than or equal to the first voltage threshold, and the second current threshold is less than or equal to the first current threshold.

[0021] A contactor according to some embodiments of the present invention further includes a housing, the housing defining an accommodating space, the conductive bus bar, the first terminal, the second terminal and the drive assembly all being disposed within the accommodating space, and the first terminal and the second terminal at least partially extending from the housing.

[0022] In the contactor according to some embodiments of the present invention, a low-voltage signal terminal is further provided outside the housing, and the low-voltage signal terminal is connected to the drive coil.

[0023] The present invention also provides a charging and power distribution system.

[0024] A charging and power distribution system according to an embodiment of the present invention is provided with the contactor described in any of the above embodiments.

[0025] The present invention also provides a vehicle.

[0026] A vehicle according to an embodiment of the present invention is provided with the charging and power distribution system described in any of the above embodiments.

[0027] The present invention also provides a charging pile.

[0028] A charging pile according to some embodiments of the present invention is provided with the contactor described in any of the above embodiments. [Effects of the Invention]

[0029] The charging and distribution system, the vehicle, the charging pile and the contactor have the same advantages over the prior art, and therefore will not be described here.

[0030] Additional aspects and advantages of the invention will be set forth in part in the description that follows, and in part will be obvious from the description, or may be learned by practice of the invention. [Brief explanation of the drawings]

[0031] The above and / or additional aspects and advantages of the present invention will become more apparent and easier to understand by reading the following detailed description of the preferred embodiments with reference to the following drawings.

[0032] [Figure 1] 1 is a schematic diagram of a contactor according to some embodiments of the present invention. [Figure 2]FIG. 1 is a side view of a contactor according to some embodiments of the present invention. [Figure 3] FIG. 2 is a top view of a contactor according to some embodiments of the present invention. [Figure 4] FIG. 4 is a cross-sectional view taken along line AA in FIG. [Figure 5] 1 is a schematic diagram of a contactor (without a housing) according to some embodiments of the present invention. [Figure 6] FIG. 6 is a top view of the contactor in FIG. 5. [Figure 7] FIG. 7 is a cross-sectional view taken along line BB in FIG. [Figure 8] FIG. 7 is a front view of the contactor in FIG. 6. [Figure 9] 1 is an assembled schematic diagram of a drive assembly and microswitch (first contact state) according to some embodiments of the present invention. [Figure 10] FIG. 10 is a top view of FIG. [Figure 11] FIG. 10 is a front view of FIG. 9. [Figure 12] 1 is an assembled schematic diagram of a drive assembly and microswitch (second contact state) according to some embodiments of the present invention. [Figure 13] FIG. 13 is a top view of FIG. [Figure 14] FIG. 13 is a front view of FIG. 12. [Figure 15] 10 is a schematic diagram of a contactor (without a housing) according to some other embodiments of the present invention. FIG. [Figure 16] FIG. 16 is a top view of FIG. [Figure 17] FIG. 1 is a front view of a drive assembly according to some embodiments of the present invention. [Figure 18] FIG. 1 is a schematic diagram of a drive assembly according to some embodiments of the present invention. [Figure 19] FIG. 1 is a top view of a drive assembly according to some embodiments of the present invention. [Figure 20] 1 is a schematic diagram of a microswitch according to some embodiments of the present invention; [Figure 21]10A to 10C are schematic diagrams illustrating the configuration of a microswitch according to some other embodiments of the present invention. [Figure 22] 10A to 10C are schematic diagrams illustrating the configuration of a microswitch according to still other embodiments of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0033] Hereinafter, the embodiments of the present invention will be described in detail, and examples of the embodiments are shown in the drawings, and the same or similar reference numerals indicate the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the drawings are illustrative and are intended to interpret the present invention only, and should not be understood as limiting the present invention.

[0034] Hereinafter, a contactor 100 according to an embodiment of the present invention will be described with reference to Figures 1 to 19. The contactor 100 is provided with at least two sets of terminal groups, i.e., the contactor 100 has at least two sets of high-voltage circuits and at least two sets of microswitches 4 and conductive busbars 3. The at least two sets of microswitches 4 and the conductive busbars 3 share the same driving components, so that the at least two sets of microswitches 4 are controlled to rotate simultaneously by the same driving components, and the at least two sets of microswitches 4 drive the at least two sets of conductive busbars 3 to rotate simultaneously, thereby achieving synchronous conduction and disconnection of the at least two sets of high-voltage circuits.

[0035] This improves the integration of the contactor 100, improves the space utilization rate inside the contactor 100, reduces the number of parts in the drive assembly 5, and further reduces the number of risk points, making the shape of the contactor 100 more compact, which is advantageous for realizing a design that is smaller and lighter in weight for the contactor 100.

[0036] As shown in FIGS. 4 to 8, a contactor 100 according to an embodiment of the present invention includes a terminal group, a conductive bus bar 3, a microswitch 4, and a drive assembly 5.

[0037] 1, the terminal group includes a first terminal 1 and a second terminal 2, and at least two sets of terminal groups are provided, and the two sets of terminal groups are distributed at an interval on one side of the contactor 100, and the first terminal 1 and the second terminal 2 are selectively connected. This allows at least two high-voltage circuits to be formed in the contactor 100.

[0038] Furthermore, the conductive busbar 3 includes a first conductive portion 31 and a second conductive portion 32 that are movably connected, and since a composite metal such as soft copper (silver) is added to the material of the conductive busbar 3, the conductive busbar 3 can be manufactured using a new material that is smaller in volume and mass, allowing the conductive busbar 3 to have a larger current capacity.In addition, the number of moving contacts can be reduced, which reduces the problem of high-voltage power consumption by the moving contacts, reduces the number of arcs, reduces adhesion points, and also reduces operating wear of the contactor 100 during circuit control.In summary, risk points and power loss can be reduced.

[0039] During operation of the contactor 100, the second conductive part 32 may collide with the second terminal 2, generating operating noise. To reduce the operating noise of the contactor 100, the conductive busbar 3 of the present invention is configured as a flexible part and made of a flexible metal material (e.g., soft copper composite material, soft silver composite material) to reduce the collision noise and improve the user experience of the contactor 100. The use of a flexible metal material can also increase the current and reduce the contact resistance between the second terminal 2 and the conductive busbar 3, reducing the probability of adhesion between them.

[0040] The first conductive portion 31 and the second conductive portion 32 are movably connected to each other in various ways, including connecting them via a conductive rotary connection structure and allowing them to rotate relative to each other, connecting them via a flexible structural component (i.e., at least a portion of the conductive busbar 3 is configured as a flexible structure) and allowing them to rotate relative to each other by bending the flexible structure, or having the entire conductive busbar 3 configured as a flexible component and allowing them to rotate relative to each other by bending. Using the above structure reduces bending wear on the conductive busbar 3 during rotation of the second conductive portion 32, thereby extending the service life of the conductive busbar 3 and the contactor 100.

[0041] Specifically, the first conductive portion 31 is connected to the first terminal 1, and the microswitch 4 is connected to the second conductive portion 32. There are at least two sets of microswitches 4, conductive bus bars 3, and terminal groups, each of which corresponds to the other, and the drive assembly 5 drives and rotates the at least two sets of microswitches 4 to drive the corresponding second conductive portions 32, thereby selectively disconnecting or establishing a connection with the second terminal 2.

[0042] As can be seen, the first conductive portion 31 is connected to the first terminal 1, and the microswitch 4 is connected to the second conductive portion 32 to drive and rotate the second conductive portion 32; specifically, during actual control of the contactor 100, the drive assembly 5 drives the microswitch 4, which in turn drives the second conductive portion 32 to move towards / away from the second terminal 2, selectively disconnecting or forming a connection between the second conductive portion 32 and the second terminal 2.

[0043] As a result, the first terminal 1 and the second terminal 2 are selectively electrically connected or disconnected via the conductive bus bar 3, and the drive assembly 5 drives the microswitch 4, which in turn drives and moves the conductive bus bar 3, thereby achieving electrical connection and disconnection between the first terminal 1 and the second terminal 2.

[0044] Preferably, in the present invention, there are two sets of microswitches 4, conductive busbars 3 and terminal groups, each set having a one-to-one correspondence, whereby the second conductive portion 32 is controlled to selectively cut off or form a connection with the second terminal 2, and the first terminal 1 and the second terminal 2 are electrically connected via the conductive busbar 3, so that the first conductive portion 31 and the second conductive portion 32 form a high-voltage circuit via the conductive busbar 3.

[0045] The first conductive portion 31 is connected to the first terminal 1, and the microswitch 4 is connected to the second conductive portion 32 to drive and rotate the second conductive portion 32; specifically, during actual control of the contactor 100, the drive assembly 5 simultaneously drives two sets of microswitches 4, so that the two sets of microswitches 4 drive the corresponding two second conductive portions 32 to move toward / away from the second terminal 2, thereby selectively disconnecting or forming the connection between the two sets of second conductive portions 32 and the corresponding second terminals 2.

[0046] In this way, one drive assembly 5 controls two microswitches 4 simultaneously, thereby reducing the number of components in the drive assembly 5 and further reducing the number of risk points, making the shape of the contactor 100 more compact and advantageous for realizing a smaller and lighter design of the contactor 100. Furthermore, the same drive component can control at least two sets of microswitches 4 to rotate simultaneously, further realizing synchronous conduction and disconnection of multiple sets of high-voltage circuits, thereby improving the practicality of the contactor 100.

[0047] The contactor 100 according to the embodiment of the present invention is provided with at least two sets of microswitches 4 and conductive busbars 3, and the at least two sets of microswitches 4 and the conductive busbars 3 share the same driving components, so that the same driving components control the at least two sets of microswitches 4 to rotate simultaneously, and drive the at least two sets of conductive busbars 3 to rotate simultaneously, thereby achieving synchronous conduction and disconnection of multiple sets of high-voltage circuits. This reduces the number of components in the driving assembly 5, further reduces the number of risk points, makes the shape of the contactor 100 more compact, and is advantageous for realizing a design that is smaller and lighter in weight.

[0048] In some embodiments, as shown in FIG. 17 , the drive assembly 5 includes a drive coil 51 and two sets of magnetic drive units 52, which may be provided at both ends of the drive coil 51, and the drive coil 51 may be connected to the magnetic drive units 52.

[0049] Furthermore, as shown in Figures 5 and 6, there are two sets of microswitches 4, which correspond one-to-one to the two sets of magnetic drive units 52. That is, each set of magnetic drive units 52 can drive and rotate the corresponding microswitch 4, and the drive coil 51 changes the magnetic state of the magnetic drive units 52 to drive and rotate the microswitch 4.

[0050] For example, a low voltage current can be passed through the drive coil 51, and by changing the direction of the current flow in the drive coil 51 to change the magnetic state of the magnetic drive unit connected to the drive coil 51, the magnetic drive unit 52 can generate different magnetic fields, and the magnetic field generates a magnetic drive force that moves the microswitch 4 closer to or away from the magnetic drive unit 52, and the magnetic drive force further rotates the second conductive part 32 of the microswitch 4 toward / away from the second terminal 2.

[0051] When the current flowing through the drive coil 51 is in the opposite direction, the magnetic states of the two sets of magnetic drive units 52 are opposite.

[0052] This changes the direction of the low-voltage current flowing through the drive coil 51, thereby changing the magnetic state of the magnetic drive unit 52, and drives two sets of microswitches 4 to rotate toward / away from the corresponding second terminals 2, thereby controlling whether or not the first terminals 1 and the second terminals 2 are electrically connected via the conductive bus bar 3, and further controlling the on / off states of the two sets of high-voltage circuits simultaneously, thereby realizing synchronous on / off of multiple sets of high-voltage circuits, which is advantageous for heat dissipation and has high safety and reliability.

[0053] Furthermore, as shown in FIGS. 17 to 19, the drive assembly 5 further includes a magnetic column 53 and magnetic conductive plates 54 connected to both ends of the magnetic column 53.

[0054] The driving coil 51 is wound outside the magnetic column 53. That is, in the contactor 100 of the present invention, by winding the driving coil 51 outside the magnetic column 53, the driving coil 51 can be fixed and the structural stability of the driving coil 51 can be improved. The magnetic column 53 can enhance the magnetic field generated by the driving coil 51. As a result, when the contactor 100 is energized, a current flows through the driving coil 51, which generates a magnetic field in the driving coil 51. The magnetic column 53 can enhance the magnetic field generated by the driving coil 51, which further enhances the magnetic driving force from the driving assembly 5 to the microswitch 4, allowing the second conductive part 32 of the microswitch 4 to rotate toward / away from the second terminal 2 more quickly. This further improves the efficiency of the contactor 100 in controlling the conduction and disconnection of the high-voltage circuit and improves the sensitivity of the contactor 100.

[0055] 19, two sets of magnetic actuators 52 are respectively located on both sides of a magnetic column 53, and are connected to two magnetic conductive plates 54. As can be seen, two magnetic conductive plates 54 are respectively located on both ends of the magnetic column 53, and each magnetic conductive plate 54 is connected to one set of magnetic actuators 52, and the magnetism generated by the magnetic column 53 is transmitted to the magnetic actuators 52 via the magnetic conductive plates 54.

[0056] Each set of magnetic driving units 52 includes a first magnetic conductive piece 521 and a second magnetic conductive piece 522 arranged at an interval. As shown in FIG. 19, the corresponding first magnetic conductive pieces 521 of the two sets of magnetic driving units 52 are arranged symmetrically on both sides of the magnetic conductive plate 54, and the corresponding second magnetic conductive pieces 522 of the two sets of magnetic driving units 52 are also arranged symmetrically on both sides of the magnetic conductive plate 54.

[0057] Specifically, as shown in FIG. 19 , the first magnetic conductive piece 521 is connected to the magnetic conductive plate 54 at the first end of the magnetic column 53, and the second magnetic conductive piece 522 is connected to the magnetic conductive plate 54 at the second end of the magnetic column 53, so that the magnetic field generated by the driving coil 51 is transmitted to the first magnetic conductive plate 54 via the magnetic conductive plate 54 at the first end of the magnetic column 53 to change the magnetic state of the first magnetic conductive plate 54, and the magnetic field generated by the driving coil 51 is transmitted to the second magnetic conductive plate 54 via the magnetic conductive plate 54 at the second end of the magnetic column 53 to change the magnetic state of the second magnetic conductive plate 54.

[0058] The first magnetic conductive plate 54 and the second magnetic conductive plate 54 generate magnetic states opposite to each other.

[0059] Furthermore, the first end of the microswitch 4 is provided with a first magnetic pole 41 and a second magnetic pole 42 spaced apart, and the second end is provided with a third magnetic pole 43 and a fourth magnetic pole 44 spaced apart, with the first magnetic conductive piece 521 extending between the first magnetic pole 41 and the second magnetic pole 42 and being attracted to one of the first magnetic pole 41 and the second magnetic pole 42, and the second magnetic conductive piece 522 extending between the third magnetic pole 43 and the fourth magnetic pole 44 and being attracted to one of the third magnetic pole 43 and the fourth magnetic pole 44.

[0060] As can be understood, the first magnetic pole 41 and the second magnetic pole 42 are both provided at a first end of the microswitch 4 and are distributed at a distance from each other, thereby defining a movable space between the first magnetic pole 41 and the second magnetic pole 42, and the first magnetic conductive piece 521 extends into the movable space and is rotatable within the movable space; the third magnetic pole 43 and the fourth magnetic pole 44 are both provided at a second end of the microswitch 4 and are distributed at a distance from each other, thereby defining a movable space between the third magnetic pole 43 and the fourth magnetic pole 44, and the second magnetic conductive piece 522 extends into the movable space and is rotatable within the movable space.

[0061] Furthermore, by making the first magnetic conductive piece 521 extend between the first magnetic pole 41 and the second magnetic pole 42, and the second magnetic conductive piece 522 extend between the third magnetic pole 43 and the fourth magnetic pole 44, the second magnetic conductive piece 522 can act as a position limiter for the third magnetic pole 43 and the fourth magnetic pole 44, thereby preventing the microswitch 4 from falling off and improving the structural stability of the microswitch 4.

[0062] Furthermore, by passing currents of different flow directions through the drive coil 51 to change the polarity of the first magnetic conductive piece 521 and the second magnetic conductive piece 522, the magnetic driving force causes the first magnetic conductive piece 521 to move toward one of the first magnetic poles 41 and 42 that has the opposite polarity to the first magnetic conductive piece 521, and the second magnetic conductive piece 522 to move toward one of the third magnetic poles 43 and 44 that has the opposite polarity to the first magnetic conductive piece 521.

[0063] Furthermore, under the action of the magnetic driving force, the first magnetic conductive piece 521 generates a thrust force against one of the first magnetic pole 41 and the second magnetic pole 42 that has the same polarity as the first magnetic conductive piece 521, and the second magnetic conductive piece 522 generates a thrust force against one of the third magnetic pole 43 and the fourth magnetic pole 44 that has the same polarity as the second magnetic conductive piece 522, thereby improving the rotation speed of the microswitch 4 and further improving the conduction / disconnection speed of the high-voltage circuit of the contactor 100, and improving the practicality of the contactor 100.

[0064] As a result, by passing current through the driving coil 51 to change the polarity of the first magnetic conductive piece 521 and the second magnetic conductive piece 522, the first magnetic conductive piece 521 can be attracted and connected to either one of the first magnetic pole 41 or the second magnetic pole 42, and the second magnetic conductive piece 522 can be attracted and connected to either one of the third magnetic pole 43 or the fourth magnetic pole 44, and the microswitch 4 further drives the conductive busbar 3 to move toward / away from the second terminal 2, thereby realizing synchronous conduction and disconnection of the two high-voltage circuits of the contactor 100 and improving the sensitivity of the contactor 100.

[0065] For example, as shown in Figures 9 to 11, at this time, the contactor 100 is in the first operating state, that is, the first magnetic conductive piece 521 is attracted to the second magnetic pole 42, and the second magnetic conductive piece 522 is attracted to the third magnetic pole 43, at this time, the second conductive portion 32 is electrically connected to the second terminal 2, and at this time, the high-voltage circuit of the contactor 100 is conductive.

[0066] Alternatively, as shown in Figures 12 to 14, at this time, the contactor 100 is in the second operating state, that is, the first magnetic conductive piece 521 is attracted to the first magnetic pole 41, and the second magnetic conductive piece 522 is attracted to the fourth magnetic pole 44, at this time, the second conductive part 32 is separated from the second terminal 2, and at this time, the high-voltage circuit of the contactor 100 is disconnected.

[0067] That is, when the contactor 100 is in the first operating state, the high-voltage circuit of the contactor 100 is conductive, and when the contactor 100 is in the second operating state, the high-voltage circuit of the contactor 100 is disconnected. Naturally, when the contactor 100 is in the first operating state, the high-voltage circuit of the contactor 100 may be disconnected, and when the contactor 100 is in the second operating state, the high-voltage circuit of the contactor 100 may be conductive.

[0068] This allows the first magnetic conductive piece 521 to be attracted and connected to either one of the first magnetic pole 41 or the second magnetic pole 42, and the second magnetic conductive piece 522 to be attracted and connected to either one of the third magnetic pole 43 or the fourth magnetic pole 44, and the microswitch 4 drives the conductive busbar 3 to move toward / away from the second terminal 2, thereby realizing synchronous conduction and disconnection of the two high-voltage circuits of the contactor 100 and improving the sensitivity of the contactor 100.

[0069] The first magnetic conductive piece 521 and the second magnetic conductive piece 522 have opposite polarities, and the polarities of the first magnetic conductive piece 521 and the second magnetic conductive piece 522 are determined by the direction of current flow through the drive coil 51.

[0070] The first magnetic pole 41 and the second magnetic pole 42 have opposite polarities, and the third magnetic pole 43 and the fourth magnetic pole 44 have opposite polarities, so the first magnetic pole 41 and the second magnetic pole 42 are not attracted to each other, and the third magnetic pole 43 and the fourth magnetic pole 44 are not attracted to each other.

[0071] As a result, during actual operation of the contactor 100, the first magnetic conductive piece 521 generates an attractive force toward one of the first magnetic pole 41 and the second magnetic pole 42, which has a polarity opposite to that of the first magnetic conductive piece 521, and generates a thrust force toward the other of the first magnetic pole 41 and the second magnetic pole 42. No. 2 Magnetic Conduction Piece 522 is the 3 magnetic pole 43 and 4 magnetic pole 44 The first of 2 Magnetic Conduction Piece 522 An attractive force is generated in one direction opposite to the polarity of the other, and a thrust force is generated in the other direction, thereby improving the rotation efficiency of the microswitch 4, realizing quick conduction and disconnection of the high-voltage circuit of the contactor 100, and improving the sensitivity of the contactor 100.

[0072] In some embodiments, the first magnetic conductive piece 521 and the second magnetic conductive piece 522 have opposite polarities.

[0073] Specifically, the first magnetic pole 41 and the second magnetic pole 42 are configured such that the inner polarity and the outer polarity are opposite to each other, and the inner polarity of the first magnetic pole 41 and the inner polarity of the second magnetic pole 42 are opposite to each other.

[0074] As can be seen, the inner and outer polarities of the first magnetic pole 41 and the second magnetic pole 42 are opposite, the layer closest to the first magnetic conductive piece 521 of the first magnetic pole 41 and the layer closest to the first magnetic conductive piece 521 of the second magnetic pole 42 have opposite polarities, and the layer away from the first magnetic conductive piece 521 of the first magnetic pole 41 and the layer away from the first magnetic conductive piece 521 of the second magnetic pole 42 have opposite polarities. This improves the magnetic sensitivity of the first magnetic pole 41 and the second magnetic pole 42, further improving the rotation efficiency of the microswitch 4 and realizing quick connection and disconnection of the high-voltage circuit of the contactor 100, thereby improving the sensitivity of the contactor 100.

[0075] The third magnetic pole 43 and the fourth magnetic pole 44 are both configured so that the inner polarity and the outer polarity are opposite, and the inner polarity of the third magnetic pole 43 and the inner polarity of the fourth magnetic pole 44 are opposite.

[0076] As can be seen, the inner and outer polarities of the third magnetic pole 43 and the fourth magnetic pole 44 are opposite, the layer adjacent to the second magnetic conductive piece 522 of the third magnetic pole 43 and the layer adjacent to the second magnetic conductive piece 522 of the fourth magnetic pole 44 have opposite polarities, and the layer away from the second magnetic conductive piece 522 of the third magnetic pole 43 and the layer away from the second magnetic conductive piece 522 of the fourth magnetic pole 44 have opposite polarities. This improves the magnetic sensitivity of the third magnetic pole 43 and the fourth magnetic pole 44, further improving the rotation efficiency of the microswitch 4 and realizing quick connection and disconnection of the high-voltage circuit of the contactor 100, thereby improving the sensitivity of the contactor 100.

[0077] The first magnetic pole 41, the second magnetic pole 42, the third magnetic pole 43, and the fourth magnetic pole 44 are all permanent magnets.

[0078] Furthermore, as shown in FIG. 20, the first magnetic pole 41 and the third magnetic pole 43 are integrally formed, and the second magnetic pole 42 and the fourth magnetic pole 44 are integrally formed.

[0079] For example, the first magnetic pole 41 and the third magnetic pole 43 are configured as an integral structure, and the second magnetic pole 42 and the fourth magnetic pole 44 are configured as an integral structure, thereby reducing the difficulty of processing and reducing manufacturing costs. Also, as shown in Fig. 20, the first magnetic pole 41 and the third magnetic pole 43 are both configured so that the inside is an N pole and the outside is an S pole, and the second magnetic pole 42 and the fourth magnetic pole 44 are both configured so that the inside is an S pole and the outside is an N pole.

[0080] This improves the magnetic sensitivity of the microswitch 4, further improving the rotation efficiency of the microswitch 4, realizing quick conduction and disconnection of the high voltage circuit of the contactor 100, and improving the sensitivity of the contactor 100.

[0081] In some other embodiments, as shown in FIG. 21, a first magnet 45 configured in a U-shape is provided at a first end (the left end shown in FIG. 21) of the microswitch 4, and both ends of the first magnet 45 are configured as a first magnetic pole 41 and a second magnetic pole 42, respectively, and a second magnet 46 configured in a U-shape is provided at a second end (the right end shown in FIG. 21) of the microswitch 4, and both ends of the second magnet 46 are configured as a third magnetic pole 43 and a fourth magnetic pole 44, respectively.

[0082] As can be seen, in some other embodiments, the first magnetic pole 41 and the second magnetic pole 42 are integrally molded, and the third magnetic pole 43 and the fourth magnetic pole 44 are integrally molded, thereby reducing the processing difficulty and reducing the manufacturing cost.

[0083] Also, as shown in FIG. 21, the first magnetic pole 41 and the second magnetic pole 42 have opposite polarities, and the third magnetic pole 43 and the fourth magnetic pole 44 have opposite polarities. For example, the first magnetic pole 41 and the third magnetic pole 43 may both be configured as north poles, and the second magnetic pole 42 and the fourth magnetic pole 44 may both be configured as south poles. This improves the magnetic sensitivity of the microswitch 4, further improves the rotation efficiency of the microswitch 4, realizes quick conduction and disconnection of the high-voltage circuit of the contactor 100, and improves the sensitivity of the contactor 100.

[0084] In some other embodiments, as shown in FIG. 22 , a first magnetic plate 47 and a second magnetic plate 48 are provided on both sides of the microswitch 4, and a magnetic component 49 is provided between the first magnetic plate 47 and the second magnetic plate 48, with both ends of the magnetic component 49 having opposite polarities, the first magnetic plate 47 and a first end of the magnetic component 49 having the same polarity, and the second magnetic plate 48 and a second end of the magnetic component 49 having the same polarity, with both ends of the first magnetic plate 47 configured as a first magnetic pole 41 and a third magnetic pole 43, respectively, and both ends of the second magnetic plate 48 configured as a second magnetic pole 42 and a fourth magnetic pole 44, respectively.

[0085] As can be appreciated, in some other embodiments, the magnetism of the first magnetic plate 47 is determined by the magnetism of the first end of the magnetic part 49, and the magnetism of the second magnetic plate 48 is determined by the magnetism of the second end of the magnetic part 49, i.e., the first magnetic pole 41 and the third magnetic pole 43 and the first end of the magnetic part 49 have the same magnetism, and the second magnetic pole 42 and the fourth magnetic pole 44 and the second end of the magnetic part 49 have the same magnetism.

[0086] 22, for example, magnetic component 49 is configured such that the first end (upper end shown in FIG. 22) is an N pole and the second end (lower end shown in FIG. 22) is an S pole, so that the first magnetic pole 41 and the third magnetic pole 43 at both ends of first magnetic plate 47 are both N poles, and the second magnetic pole 42 and the fourth magnetic pole 44 at both ends of second magnetic plate 48 are both S poles. This reduces the manufacturing difficulty of microswitch 4, improves the magnetic sensitivity of microswitch 4, and further improves the rotation efficiency of microswitch 4, thereby achieving quick connection and disconnection of the high-voltage circuit of contactor 100 and improving the sensitivity of contactor 100.

[0087] In some other embodiments, the driving base 61 is configured as a magnetic material, and the upper part of the driving base 61 and the lower part of the driving base 61 have opposite magnetic properties. Therefore, by passing current through the driving coil 51 to change the polarity of the first magnetic conductive piece 521 and the second magnetic conductive piece 522, the first magnetic conductive piece 521 can be attracted and connected to either one of the first magnetic pole 41 or the second magnetic pole 42, and the second magnetic conductive piece 522 can be attracted and connected to either one of the third magnetic pole 43 or the fourth magnetic pole 44. Furthermore, the microswitch 4 drives the conductive busbar 3 to move toward / away from the second terminal 2, thereby realizing synchronous conduction and disconnection of the two high-voltage circuits of the contactor 100 and improving the sensitivity of the contactor 100.

[0088] In some other embodiments, the microswitch 4 includes a drive base 61 and a clamping portion 62 connected to the drive base 61. The drive base and the clamping portion 62 may be integrally molded, which reduces the number of processing steps for the microswitch 4 and improves manufacturing efficiency.

[0089] 10 and 13, the driving base 61 is provided between the first conductive part 31 and the second conductive part 32, the first magnetic pole 41, the second magnetic pole 42, the third magnetic pole 43, and the fourth magnetic pole 44 are provided at the four corners of the driving base 61, respectively, and the first magnetic pole 41, the second magnetic pole 42, the third magnetic pole 43, and the fourth magnetic pole 44 are located on opposite sides of the driving base 61, respectively, so that the first magnetic conductive piece 521 is connected to the first magnetic pole 41 and the second magnetic pole 42, and the second magnetic conductive piece 522 can extend between the third magnetic pole 43 and the fourth magnetic pole 44. A driving base 61 drives the four magnetic poles to move synchronously, so that one of the first magnetic pole 41 and the second magnetic pole 42 is attracted to the first magnetic conductive piece 521, and one of the third magnetic pole 43 and the fourth magnetic pole 44 is attracted to the second magnetic conductive piece 522, thereby realizing the control of the conduction and disconnection of the high-voltage circuit of the contactor 100.

[0090] As shown in Figures 11, 12 and 14, the clamping portion 62 has a clamping opening 63, which is recessed toward the drive table 61, and the second conductive portion 32 is interposed within the clamping opening 63, thereby improving the structural stability of the second conductive portion 32 and further improving the movement stability of the conductive bus bar 3.

[0091] This eliminates the need to provide a separate connection structure between the drive base 61 and the conductive bus bar 3, simplifies the internal structure of the contactor 100, reduces the installation space occupied by the conductive bus bar 3, and further realizes a compact design of the contactor 100. Furthermore, by providing the clamping opening 63, the drive base 61 drives the second conductive part 32 to move it toward / away from the second terminal 2, and further realizes control of the conduction and disconnection of the high-voltage circuit of the contactor 100.

[0092] In some embodiments, the first terminal 1 and the second terminal 2 are each arranged opposite the conductive bus bar 3 in a first direction, and at least one of the conductive bus bar 3, the first terminal 1, and the second terminal 2 is arranged opposite the drive assembly 5 in a second direction, and the first direction is perpendicular to the second direction.

[0093] As shown in Figures 5 and 6, the conductive bus bar 3 is arranged facing the first terminal 1 and the second terminal 2 in a first direction, and the drive assembly 5 is arranged facing at least one of the conductive bus bar 3, the first terminal 1, and the second terminal 2 in a second direction. For example, if the first direction corresponds to the length direction or width direction in a horizontal plane and the second direction corresponds to the height direction, the first terminal 1, the second terminal 2, and the conductive bus bar 3 are arranged at the same height, and the drive assembly 5 is located above or below the conductive bus bar 3. Preferably, the drive assembly 5 is located below the conductive bus bar 3 to reduce the height dimension of the contactor 100.

[0094] In addition, by configuring the contactor 100 as described above, it is possible to configure the contactor 100 in a hierarchical manner and achieve high and low voltage separation (the upper layer is the high voltage conducting part, and the lower layer is the low voltage control part). The arc extinguishing method is not limited to the combination of inert gas and magnetic blow-out, but can be realized by immersing the entire structure in insulating liquid, or the arc extinguishing structure can be omitted. Due to the versatility of the arc extinguishing method, there is no need to insulate and separate the drive assembly 5 and the cavity, which solves the problem of low voltage failure, there is no need to inject inert gas, and there is no need to use a ceramic and metal brazing process to process the contactor 100. This simplifies the processing process of the contactor 100, reduces the material process, improves manufacturing efficiency, and reduces the processing cost of the contactor 100.

[0095] In some other embodiments, the conductive bus bar 3 further includes a flexible connection portion 33, as shown in FIGS.

[0096] The flexible connection portion 33 is connected between the first conductive portion 31 and the second conductive portion 32, and the second conductive portion 32 is configured to move towards or away from the second terminal 2 by deformation of the flexible connection portion 33.

[0097] As can be seen, the flexible connection part 33 in the present invention uses a flexible metal material (e.g., soft copper composite material, soft silver composite material) to reduce collision noise and improve the user experience of the contactor 100. Furthermore, the use of a flexible metal material can increase the current, reduce the contact resistance between the second terminal 2 and the conductive busbar 3, and also reduce the probability of the two being adhered to each other.

[0098] In some embodiments, the contactor 100 further includes a sensor 9 and a controller.

[0099] The sensor 9 is provided in proximity to the first terminal 1 or the second terminal 2 or the conductive bus bar 3 and detects the circuit signal of the first terminal 1 or the second terminal 2 or the conductive bus bar 3 in real time, and the controller is electrically connected to the sensor 9 and configured to control the drive assembly 5 based on the circuit signal to disconnect or form the electrical connection between the second conductive portion 32 and the second terminal 2.

[0100] Preferably, the sensor 9 is provided in proximity to the conductive busbar 3 and detects the circuit signal of the conductive busbar 3 in real time. The sensor 9 can transmit the detected circuit signal of the conductive busbar 3 to the controller in real time. This allows the controller to control, based on the circuit signal detected by the sensor 9, to form or cut off the connection between the conductive busbar 3 and the second terminal 2, thereby ensuring that a high voltage is applied to the high-voltage circuit and improving the safety of the high-voltage circuit, particularly in extreme operating conditions.

[0101] The controller may be the vehicle's original host computer, and the sensor 9 and the host computer control communication using a CAN (Controller Area Network), thereby controlling the temperature sensor 9 using the original host computer, simplifying the control structure of the sensor 9 and reducing manufacturing costs.

[0102] Specifically, the controller obtains the temperature, voltage, or current of the first terminal 1 or the second terminal 2 or the conductive bus bar 3 based on the circuit signal, and when the temperature of the first terminal 1 or the second terminal 2 or the conductive bus bar 3 is greater than a first temperature threshold, and / or when the voltage is greater than a first voltage threshold, and / or when the current is greater than a first current threshold, the controller is configured to control the drive assembly 5 to rotate the conductive bus bar 3, separate the second conductive portion 32 from the second terminal 2, and further cut off the electrical connection between the first terminal 1 and the second terminal 2.

[0103] That is, when the signal of the high-voltage circuit detected by the sensor 9 is greater than the first temperature threshold and / or the first voltage threshold and / or the first current threshold, the sensor 9 transmits a circuit signal to the controller, and the controller controls the drive assembly 5 to rotate the conductive bus bar 3 to separate the second conductive portion 32 from the second terminal 2, and further cuts off the electrical connection between the first terminal 1 and the second terminal 2, and disconnects the contactor 100, thereby improving the safety of the contactor 100.

[0104] Furthermore, the controller is configured to form an electrical connection between the second conductive portion 32 and the second terminal 2, i.e., control the drive assembly 5 to rotate the conductive busbar 3 to connect the second conductive portion 32 and the second terminal 2, and further establish an electrical connection between the first terminal 1 or the second terminal 2, when the temperature of the first terminal 1 or the second terminal 2 or the conductive busbar 3 is less than a second temperature threshold, and / or when the voltage is less than a second voltage threshold, and / or when the current is less than a second current threshold.

[0105] That is, when the signal of the high-voltage circuit detected by the sensor 9 is smaller than the second temperature threshold and / or the second voltage threshold and / or the second current threshold, the sensor 9 transmits a circuit signal to the controller, and the controller controls the drive assembly 5 to rotate the conductive bus bar 3 to connect the second conductive portion 32 and the second terminal 2, and further establish an electrical connection between the first terminal 1 and the second terminal 2.

[0106] The second temperature threshold is less than or equal to the first temperature threshold, the second voltage threshold is less than or equal to the first voltage threshold, and the second current threshold is less than or equal to the first current threshold.

[0107] As can be understood, the circuit signals include, but are not limited to, temperature signals, voltage changes, current changes, etc. Thus, the controller can control the drive assembly 5 based on one or more signals of temperature, voltage, and current detected by the sensor 9, and can further control the connection or disconnection between the conductive bus bar 3 and the second terminal 2. In addition, the sensor 9 and the controller can be provided instead of a fuse, which eliminates the need to provide a fuse in the high-voltage circuit in which the contactor 100 is located, not only reducing high-voltage loss but also ensuring that a high voltage is applied to the high-voltage circuit in extreme operating conditions, thereby improving the safety of the high-voltage circuit.

[0108] In some examples, the sensor 9 is welded to the conductive busbar 3 and electrically connected to the host computer. As the conductive busbar 3 connects the first terminal 1 and the second terminal 2, the current capacity and heat generation of the high-voltage circuit change, resulting in a corresponding change in temperature. The sensor 9 can obtain change information (such as temperature and current capacity changes) during operation of the high-voltage circuit. The sensor 9 detects the temperature change of the conductive busbar 3 and transmits this information to the controller in the form of a circuit signal. The controller determines based on the circuit signal whether the high-voltage circuit has reached its disconnection threshold. If the high-voltage circuit needs to be disconnected, it controls the drive assembly 5 to disconnect the electrical connection between the sector drive unit and the second terminal 2. This not only eliminates the need for a fuse, reduces high-voltage loss, and reduces costs, but also ensures that high voltage is applied to the electrical equipment using the contactor 100 of the present invention if it needs to continue operating after the contactor 100 is controlled to disconnect, thereby improving safety.

[0109] Furthermore, when the fuse blows, the high-voltage circuit is completely disconnected. However, by providing a controller and a sensor 9, the present invention can improve safety by still applying high voltage under extreme conditions, even if it is necessary to disconnect the high voltage based on information obtained by the sensor 9. For example, when the contactor 100 of the present invention is applied to an electric vehicle, and circuit information indicates that the contactor 100 needs to be disconnected, but if the vehicle is in a dangerous situation and the operating status needs to be maintained, the high voltage application state can be maintained, and after the vehicle has driven to a safe position or the dangerous situation has been resolved, the electrical connection between the conductive busbar 3 and the second terminal 2 can be disconnected.

[0110] This prevents the contactor 100 from overheating due to the temperature of the conductive busbar 3 becoming too high, which is advantageous for improving the safety of the contactor 100, and when the vehicle is in a dangerous situation and needs to maintain its operating state, it can maintain a high voltage application state and further improve the practicality of the contactor 100.

[0111] Of course, the sensor 9 may be provided in other structural forms and at other positions in the high-voltage circuit to detect the circuit signal of the high-voltage circuit, and is not limited here.

[0112] In some embodiments, as shown in FIGS. 1-4, the contactor 100 further includes a housing 7.

[0113] The housing 7 defines an accommodation space, and the conductive bus bar 3, first terminal 1, second terminal 2, and drive assembly 5 are all disposed within the accommodation space, so that the conductive bus bar 3 and drive assembly 5 are not directly visible from the outside of the contactor 100. The provision of the housing 7 separates the drive assembly 5 from the outside, improving operational stability, reducing interference with the drive assembly 5 and microswitch 4 from the external environment, and improving the control response efficiency of the low-voltage control section. At least a portion of the first terminal 1 and the second terminal 2 extend from the housing 7 to form connecting terminals, allowing the contactor 100 to be electrically connected to another structure.

[0114] An attachment portion 71 is further provided outside the housing, and an attachment hole 711 is formed in the attachment portion 71, so that the contactor 100 can be detachably connected to another structure via the attachment portion 71, making it easier to attach and detach the contactor 100 and further improving the practicality of the contactor 100.

[0115] Furthermore, a low voltage signal terminal 8 is further provided outside the housing 7 , and the low voltage signal terminal 8 is connected to the drive coil 51 .

[0116] Preferably, in some embodiments, a wire harness outlet is provided on the housing 7, and the low-voltage signal terminal 8 is pulled out of the housing through the wire harness outlet. In other embodiments, the low-voltage signal terminal 8 is inserted into and fixed to the housing 7, and a corresponding insertion port is provided on the housing 7, and a metal wire is inserted into the housing 7 through the insertion port to electrically connect it to the driving coil 51. This makes the appearance of the contactor 100 of the present invention consistent with that of the conventional contactor 100, facilitating structural design and material switching, shortening the research and development cycle, and reducing development costs.

[0117] The present invention also provides a charging and power distribution system.

[0118] A charging and power distribution system according to an embodiment of the present invention includes the contactor 100 described in any of the above embodiments, and the contactor 100 is provided with at least two sets of microswitches 4 and conductive busbars 3. The at least two sets of microswitches 4 and the conductive busbars 3 share the same driving components, so that the same driving components control the at least two sets of microswitches 4 to rotate simultaneously and drive the at least two sets of conductive busbars 3 to rotate simultaneously, thereby achieving synchronous conduction and disconnection of multiple sets of high-voltage circuits. This reduces the number of parts in the driving assembly 5, further reduces the number of risk points, makes the shape of the contactor 100 more compact, and is advantageous for realizing a design that is smaller and lighter in weight.

[0119] The present invention also provides a vehicle.

[0120] A vehicle according to an embodiment of the present invention is provided with the charging and distribution system described in any of the above embodiments, and its contactor 100 is provided with at least two sets of microswitches 4 and conductive busbars 3, and the at least two sets of microswitches 4 and the conductive busbars 3 share the same driving component, so that the same driving component controls the at least two sets of microswitches 4 to rotate simultaneously and drives the at least two sets of conductive busbars 3 to rotate simultaneously, thereby achieving synchronous conduction and disconnection of multiple sets of high-voltage circuits. This reduces the number of parts in the driving assembly 5 and the number of risk points, making the shape of the contactor 100 more compact and advantageous for realizing a design that is compact and lightweight. Use of the contactor 100 can improve the operational stability and usage safety of the vehicle charging and distribution system and extend its service life.

[0121] The present invention also provides a charging pile.

[0122] A charging pile according to some embodiments of the present invention is provided with the contactor 100 according to any one of the above embodiments. The contactor 100 is provided with at least two sets of microswitches 4 and conductive busbars 3. The at least two sets of microswitches 4 and conductive busbars 3 share the same driving components, so that the same driving components control the at least two sets of microswitches 4 to rotate simultaneously and drive the at least two sets of conductive busbars 3 to rotate simultaneously, thereby achieving synchronous conduction and disconnection of multiple sets of high-voltage circuits. This reduces the number of parts in the driving assembly 5, further reducing the number of risk points, making the shape of the contactor 100 more compact and advantageous for realizing a design that is small and lightweight. Use of the contactor 100 can also improve the safety of use of the charging pile.

[0123] In the description of the present invention, the orientations or positional relationships indicated by terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" are based on the orientations or positional relationships shown in the drawings, and are intended merely to facilitate and simplify the description of the present invention, and do not indicate or suggest that the devices or parts shown must have a specific orientation, be configured, and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0124] In describing the present invention, a "first feature" or a "second feature" may include one or more of such features.

[0125] In the present description, "plurality" means two or more.

[0126] In describing this invention, a first feature being "above" or "below" a second feature may include direct contact between the first feature and the second feature, or may include contact between the first feature and the second feature without direct contact, but via another feature between them.

[0127] In describing this invention, a first feature being "on," "above," or "on top of" a second feature may include the first feature being directly above and diagonally above the second feature, or may simply mean that the horizontal height of the first feature is higher than that of the second feature.

[0128] In the description herein, references to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "particular examples," or "some examples" mean that the specific features, structures, materials, or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present invention. In the description herein, the exemplary use of the term does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined as appropriate in any one or more embodiments or examples.

[0129] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is limited by the claims and their equivalents. [Explanation of symbols]

[0130] 100 Contactor 1 1st terminal 2 2nd terminal 3 Conductive busbars 31 1st conduction part 32 2nd conduction part 33 Flexible Connection 4 microswitches 41 1st magnetic pole 42 2nd magnetic pole 43 3rd magnetic pole 44 4th magnetic pole 45 First Magnet 46 Second magnet 47 First Magnetic Plate 48 Second Magnetic Plate 49 Magnetic Components 5 Drive Assembly 51 Drive coil 52 Magnetic drive unit 521 First magnetic conductive piece 522 Second magnetic conductive piece 53 Magnetic Column 54 Magnetic Conductive Plate 61 Drive stand 62 Clamping part 63 Clasp opening 7. Housing 71 Mounting part 711 Mounting hole 8 Low voltage signal terminal 9 Sensors

Claims

1. A contactor (100) including a terminal group, a conductive bus bar (3), a microswitch (4), and a drive assembly (5), The terminal group includes a first terminal (1) and a second terminal (2), The conductive bus bar (3) includes a first conductive portion (31) and a second conductive portion (32) that are movably connected, and the first conductive portion (31) is connected to the first terminal (1); The microswitch (4) is connected to the second conductive portion (32), and the microswitch (4), the conductive bus bar (3) and the terminal group correspond to each other one-to-one, and there are at least two pairs of them; The drive assembly (5) drives and rotates at least two sets of the microswitches (4) to selectively disconnect or connect the corresponding second conductive portions (32) to the second terminals (2); The drive assembly (5) includes a drive coil (51) and two sets of magnetic drive units (52), and there are two sets of microswitches (4) that correspond one-to-one to the two sets of magnetic drive units (52); The driving coil (51) changes the magnetic state of the magnetic driving unit (52) to drive and rotate the microswitch (4), The drive assembly (5) further includes a magnetic column (53) and magnetic conductive plates (54) connected to both ends of the magnetic column (53), the drive coil (51) is wound around the magnetic column (53), and two sets of the magnetic drive units (52) are located on both sides of the magnetic column (53) and are connected to the two magnetic conductive plates (54); Each set of the magnetic driving units (52) includes a first magnetic conductive piece (521) and a second magnetic conductive piece (522) spaced apart, the first magnetic conductive piece (521) being connected to a magnetic conductive plate (54) at a first end of the magnetic column (53), and the second magnetic conductive piece (522) being connected to a magnetic conductive plate (54) at a second end of the magnetic column (53); the first end of the microswitch (4) is provided with a first magnetic pole (41) and a second magnetic pole (42) spaced apart, and the second end of the microswitch (4) is provided with a third magnetic pole (43) and a fourth magnetic pole (44) spaced apart; The first magnetic conductive piece (521) extends between the first magnetic pole (41) and the second magnetic pole (42) and is attracted to one of the first magnetic pole (41) and the second magnetic pole (42), and the second magnetic conductive piece (522) extends between the third magnetic pole (43) and the fourth magnetic pole (44) and is attracted to one of the third magnetic pole (43) and the fourth magnetic pole (44), The microswitch (4) includes a drive base (61) and a clamping portion (62) connected to the drive base (61), the clamping portion (62) is arranged above or below the drive base (61), the first magnetic pole (41), the second magnetic pole (42), the third magnetic pole (43), and the fourth magnetic pole (44) are respectively provided at four corners of the drive base (61), the clamping portion (62) has a clamping opening (63), and the second conductive portion (32) is interposed within the clamping opening (63).

2. 2. The contactor (100) of claim 1, wherein the first magnetic conductive piece (521) and the second magnetic conductive piece (522) have opposite polarities, the first magnetic pole (41) and the second magnetic pole (42) have opposite polarities, and the third magnetic pole (43) and the fourth magnetic pole (44) have opposite polarities.

3. The first magnetic conductive piece (521) and the second magnetic conductive piece (522) have opposite polarities; The first magnetic pole (41) and the second magnetic pole (42) are both configured such that the inner polarity and the outer polarity are opposite, and the inner polarity of the first magnetic pole (41) is opposite to the inner polarity of the second magnetic pole (42), 2. The contactor (100) of claim 1, wherein the third magnetic pole (43) and the fourth magnetic pole (44) are configured such that their inner and outer polarities are opposite, and the inner polarity of the third magnetic pole (43) is opposite to the inner polarity of the fourth magnetic pole (44).

4. 4. The contactor (100) of claim 3, wherein the first magnetic pole (41) and the third magnetic pole (43) are integrally molded, and the second magnetic pole (42) and the fourth magnetic pole (44) are integrally molded.

5. 2. The contactor (100) according to claim 1, wherein a first magnet (45) configured in a U-shape is provided at a first end of the microswitch (4), and both ends of the first magnet (45) are configured as the first magnetic pole (41) and the second magnetic pole (42), respectively; and a second magnet (46) configured in a U-shape is provided at a second end of the microswitch (4), and both ends of the second magnet (46) are configured as the third magnetic pole (43) and the fourth magnetic pole (44), respectively.

6. A first magnetic plate (47) and a second magnetic plate (48) are provided on both sides of the microswitch (4), and a magnetic part (49) is provided between the first magnetic plate (47) and the second magnetic plate (48), and both ends of the magnetic part (49) have opposite polarities, the first magnetic plate (47) and a first end of the magnetic part (49) have the same polarity, and the second magnetic plate (48) and a second end of the magnetic part (49) have the same polarity.

2. The contactor (100) of claim 1, wherein both ends of the first magnetic plate (47) are configured as the first magnetic pole (41) and the third magnetic pole (43), respectively, and both ends of the second magnetic plate (48) are configured as the second magnetic pole (42) and the fourth magnetic pole (44), respectively.

7. 2. The contactor (100) of claim 1, wherein the first terminal (1) and the second terminal (2) are each arranged facing the conductive bus bar (3) in a first direction, and at least one of the conductive bus bar (3), the first terminal (1), and the second terminal (2) is arranged facing the drive assembly (5) in a second direction, and the first direction is perpendicular to the second direction.

8. 2. The contactor (100) of claim 1, wherein the conductive busbar (3) further comprises a flexible connection portion (33), the flexible connection portion (33) being connected between the first conductive portion (31) and the second conductive portion (32), and the second conductive portion (32) being configured to move toward or away from the second terminal (2) by deformation of the flexible connection portion (33).

9. The system further includes a sensor (9) and a controller, wherein the sensor (9) is provided in proximity to the first terminal (1), the second terminal (2), or the conductive bus bar (3), and detects a circuit signal of the first terminal (1), the second terminal (2), or the conductive bus bar (3) in real time; 2. The contactor (100) of claim 1, wherein the controller is electrically connected to the sensor (9) and configured to control the drive assembly (5) based on the circuit signal to disconnect or form an electrical connection between the second conductive portion (32) and the second terminal (2).

10. The controller acquires the temperature, voltage, or current of the first terminal (1), the second terminal (2), or the conductive bus bar (3) based on the circuit signal; 10. The contactor (100) of claim 9, wherein the controller is configured to disconnect the electrical connection between the second conductive portion (32) and the second terminal (2) when a temperature of the first terminal (1) or the second terminal (2) or the conductive busbar (3) is greater than a first temperature threshold, and / or when a voltage of the first terminal (1) or the second terminal (2) or the conductive busbar (3) is greater than a first voltage threshold, and / or when a current of the second terminal (32) is greater than a first current threshold.

11. 11. The contactor (100) of claim 10, wherein the controller is configured to form an electrical connection between the second conductive portion (32) and the second terminal (2) when a temperature of the first terminal (1) or the second terminal (2) or the conductive busbar (3) is less than a second temperature threshold, and / or when a voltage is less than a second voltage threshold, and / or when a current is less than a second current threshold, wherein the second temperature threshold is less than or equal to the first temperature threshold, the second voltage threshold is less than or equal to the first voltage threshold, and the second current threshold is less than or equal to the first current threshold.

12. 2. The contactor (100) of claim 1, further comprising a housing (7), the housing (7) defining an accommodating space, the conductive bus bar (3), the first terminal (1), the second terminal (2), and the drive assembly (5) all being disposed within the accommodating space, and the first terminal (1) and the second terminal (2) at least partially extending from the housing (7).

13. 13. The contactor (100) according to claim 12, further comprising a low-voltage signal terminal (8) outside the housing (7), the low-voltage signal terminal (8) being connected to the drive coil (51).

14. A charging and distribution system, characterized in that it is provided with a contactor (100) according to any one of claims 1 to 13.

15. A vehicle equipped with the charging and distribution system of claim 14.

16. A charging pile, characterized in that it is provided with a contactor (100) according to any one of claims 1 to 13.

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