CN115742785A - Contactor, charging pile and vehicle - Google Patents

Abstract

The invention discloses a contactor, a charging pile and a vehicle, wherein the contactor comprises: a terminal, the terminal comprising: a first terminal, a second terminal, and a third terminal; lead to piece and drive assembly, drive assembly includes: the micro switch is rotatably arranged between the first driving coil and the second driving coil and is connected with the conducting piece, and the micro switch is suitable for driving the conducting piece to switch between a first position and a second position under the action of magnetic force of the first driving coil and the second driving coil; the conducting piece is provided with a first conducting section, a second conducting section and a third conducting section, when the conducting piece is located at the first position, the first conducting section is electrically connected with the first wiring terminal, and the third conducting section is electrically connected with the second wiring terminal, when the conducting piece is located at the second position, the second conducting section is electrically connected with the first wiring terminal, and the third conducting section is electrically connected with the third wiring terminal.

Description

Contactor, charging pile and vehicle

Technical Field

The invention relates to the field of contactors, in particular to a contactor, a charging pile and a vehicle.

Background

With the rapid development of application layer science and technology, the changing industry of the day and night puts higher requirements on vehicles in accelerated evolution. Each spare part development of vehicle tends to modularization, integrates, intellectuality gradually, and on this basis, the performance is more high-efficient, the security is stronger, control is more convenient, the volume is miniaturized more, the more lightweight product of weight is more and more required.

In the existing vehicle power distribution system, in order to avoid mutual influence among a plurality of electrical elements, a plurality of contactors are respectively and independently arranged, so that the circuit arrangement is complex, the occupied space is large, and the cost is high.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. To this end, an object of the present invention is to propose a contactor having a simple circuit, a small volume, a high operating reliability and a lower cost.

The invention also provides a charging pile adopting the contactor.

The invention further provides a vehicle adopting the contactor.

A contactor according to an embodiment of the first aspect of the invention comprises: a terminal, the terminal comprising: a first terminal, a second terminal, and a third terminal; lead to piece and drive assembly, the drive assembly includes: the microswitch is rotatably arranged between the first driving coil and the second driving coil and is connected with the conducting piece, and the microswitch is suitable for driving the conducting piece to be switched between a first position and a second position under the action of magnetic force of the first driving coil and the second driving coil; the conducting piece is provided with a first conducting section, a second conducting section and a third conducting section, the conducting piece is located at the first position, the first conducting section is electrically connected with the first wiring terminal, the third conducting section is electrically connected with the second wiring terminal, the conducting piece is located at the second position, the second conducting section is electrically connected with the first wiring terminal, and the third conducting section is electrically connected with the third wiring terminal.

According to the contactor provided by the embodiment of the invention, on one hand, compared with a plurality of contactors which are independently arranged, the number of contacts can be reduced, the circuit where the contactor is located can be simplified, the structure of the contactor can be simplified, the occupied space of the contactor can be reduced while the risk points and the power loss are reduced, so that the production cost of the contactor is reduced, and the arrangement difficulty is reduced; on the other hand, come drive micro-gap switch's rotation through two drive coils, not only the volume of first drive coil and second drive coil all can set up is littleer, can further improve the space occupation of contactor, can realize the stroke adjustment to micro-gap switch through the interval of adjusting first drive coil and second drive coil in addition, can improve the application scope of contactor, and reasonable micro-gap switch stroke, can reduce the probability of drawing arc and adhesion, guaranteed the reliability of contactor.

According to some embodiments of the present application, a distance between a rotation center of the micro switch and any one end of the micro switch is smaller than a distance between a contact point of the first conducting section and the first terminal and a rotation center of the micro switch, a distance between a contact point of the second conducting section and the first terminal and a rotation center of the micro switch, a distance between a contact point of the third conducting section and the second terminal and a rotation center of the micro switch, and a distance between a contact point of the third conducting section and the third terminal and a rotation center of the micro switch. According to some embodiments of the invention, the microswitch comprises: the permanent magnets are selectively magnetically attracted with the first driving coil or the second driving coil.

In some embodiments, the first drive coil and the second drive coil are arranged in series, and both ends of one side facing each other are provided with magnetic conductive sheets, and the two permanent magnets are selectively magnetically attracted with the magnetic conductive sheet of the first drive coil or the magnetic conductive sheet of the second drive coil.

Furthermore, the polarities of the ends of the two permanent magnets departing from each other are the same, and in the energized state, the polarities of the ends of the first driving coil and the second driving coil on the same side are opposite.

Further, the magnetic poles of the two permanent magnets are located in the thickness direction of the body portion, the same polarity is applied to the same side of the two permanent magnets, and in the energized state, the same polarity is applied to one end of the first driving coil and one end of the second driving coil, which are located on the same side.

According to some embodiments of the invention, the body portion is provided with an accommodating groove, and the conducting piece is arranged in the accommodating groove.

Further, the container includes: a first slot portion, a second slot portion, and a third slot portion, the first slot portion, the second slot portion, and the third slot portion being in communication with each other and for accommodating the first conducting segment, the second conducting segment, and the third conducting segment, respectively.

Further, the body portion is configured as an insulating member, or an insulating layer is coated in the accommodating groove.

In some embodiments, the conductive member is positioned in the first position such that the first conductive segment is electrically connected to the first terminal on one side of the first terminal, and the conductive member is positioned in the second position such that the second conductive segment is electrically connected to the first terminal on the other side of the first terminal.

Further, the conducting piece and the terminal are arranged opposite to each other in a first direction, the driving assembly and the conducting piece are arranged opposite to each other in a second direction, and the first direction is orthogonal to the second direction.

In some embodiments, further comprising: the casing, the accommodation space is injectd to the casing, the wiring end, lead to the piece and drive assembly all sets up in the accommodation space, at least part of wiring end stretches out the casing.

Further, a low-voltage signal end is further arranged outside the shell, and the low-voltage signal end is connected with the first driving coil or the second driving coil.

In some embodiments, the contactor further comprises a sensor disposed adjacent to the first or second or third terminal or the conducting member and configured to detect in real time a circuit signal of the first or second or third terminal or the conducting member, the circuit signal comprising: temperature variations, voltage variations, and current variations.

According to some embodiments of the invention, the first terminal is configured as an input terminal, the second terminal and the third terminal are configured as output terminals; or the first terminal is configured as an output terminal, and the second terminal and the third terminal are configured as input terminals.

Further, the first terminal includes: first link and the first interface of interconnect, the second link includes: interconnect's second link and second interface, three link includes: the first connection end is electrically connected with the first conduction section or the second conduction section, the second connection end and the third connection end are selectively connected with the third conduction section, and the first interface, the second interface and the third interface can be constructed into a plurality of interfaces.

According to the second aspect of the embodiment of the invention, the charging pile comprises: the contactor described in the above embodiments.

According to a vehicle of an embodiment of a third aspect of the invention, comprising: the contactor described in the above embodiments.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a contactor according to an embodiment of the present invention;

FIG. 2 is another schematic view of a contactor according to an embodiment of the invention;

fig. 3 is a schematic perspective view of a conducting member of a contactor according to an embodiment of the invention in a first position;

fig. 4 is a top view of a conductive member of a contactor according to an embodiment of the present invention in a first position;

fig. 5 is a top view of a contactor according to an embodiment of the present invention with a conducting member in a second position;

FIG. 6 is a schematic diagram of the connection between the conducting member and the driving member of the contactor according to the embodiment of the invention

FIG. 7 is a diagram of the position of the drive assembly relative to the conductive member of the contactor according to an embodiment of the present invention in a first position;

FIG. 8 is a diagram of the position of the drive assembly relative to the conductive member of the contactor according to an embodiment of the present invention in a second position;

figure 9 is a schematic perspective view of a drive assembly of a contactor according to an embodiment of the invention;

figure 10 is a top view of a drive assembly of the contactor according to an embodiment of the present invention;

figure 11 is another top view of a drive assembly of a contactor according to an embodiment of the present invention;

FIG. 12 is a schematic view of the engagement of the drive coil of the contactor with the microswitch in accordance with an embodiment of the present invention;

FIGS. 13-15 are schematic views of the contactor of the present invention in three use scenarios;

figure 16 is a schematic view of the first, second and third interfaces of the contactor according to the present invention (the first interface is plural);

fig. 17 is a schematic view of the first, second and third interfaces of the contactor according to the present invention (a plurality of the first, second and third interfaces);

figure 18 is a perspective view of the first, second and third interfaces of the contactor according to the present invention;

FIG. 19 is a schematic illustration of a vehicle according to an embodiment of the present application;

fig. 20 is a schematic diagram of a charging post according to an embodiment of the present invention.

Reference numerals are as follows:

the vehicle 1000, the charging pile 2000,

the contact device (100) is provided with a contact,

a terminal 10, a first terminal 11, a first connection end 111, a first interface 112, a second terminal 12, a second connection end 121, a second interface 122, a third terminal 13, a third connection end 131, a third interface 132,

a conducting member 20, a first conducting section 21, a second conducting section 22, a third conducting section 23,

the driving assembly 30, the first driving coil 31, the second driving coil 32, the micro switch 33, the body 331, the permanent magnet 332, the magnetic conductive sheet 34,

the housing 40, the low voltage signal terminal 50,

the groove comprises a containing groove a, a first groove a1, a second groove a2 and a third groove a3.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

A contactor 100, a vehicle 1000, and a charging pile 2000 according to an embodiment of the present invention are described below with reference to fig. 1 to 20.

As shown in fig. 1 to 5, a contactor 100 according to an embodiment of the present invention includes: terminal 10, conducting piece 20 and driving assembly 30.

Wherein, terminal 10 includes: a first terminal 11, a second terminal 12, and a third terminal 13; the driving assembly 30 includes: the driving device comprises a first driving coil 31, a second driving coil 32 and a micro switch 33, wherein the micro switch 33 is rotatably arranged between the first driving coil 31 and the second driving coil 32, and the micro switch 33 is connected with the conducting piece 20 and is suitable for driving the conducting piece 20 to switch between a first position and a second position under the action of magnetic force of the first driving coil 31 and the second driving coil 32.

As shown in fig. 3, 4 and 5, the conducting member 20 has a first conducting segment 21, a second conducting segment 22 and a third conducting segment 23, when the conducting member 20 is located at the first position, the first conducting segment 21 is electrically connected to the first terminal 11, and the third conducting segment 23 is electrically connected to the second terminal 12, when the conducting member 20 is located at the second position, the second conducting segment 22 is electrically connected to the first terminal 11, and the third conducting segment 23 is electrically connected to the third terminal 13.

Specifically, the first conducting section 21, the second conducting section 22, and the third conducting section 23 of the conducting member 20 are matched with the first terminal 11, the second terminal 12, and the third terminal 13 of the terminal 10, and may be configured as a switch circuit with one input terminal and two output terminals or a switch circuit with one output terminal and two input terminals, so that a circuit accessed by a high-voltage conducting part may be simplified, the functions of a plurality of contactors 100 may be realized by one single-pole double-throw contactor, the structure of the contactor 100 may be simplified, the occupied space of the contactor 100 may be reduced, the production cost of the contactor 100 may be reduced, and the number of the terminals 10 (i.e., the number of contacts) may be reduced.

More importantly, micro-switch 33 drives through first drive coil 31 and the second drive coil 32 that is located micro-switch 33 both sides, can make full use of first wiring end 11, the width space between second wiring end 12 and the third wiring end 13, not only the size of two drive coils all can set up is littleer, can further improve the space occupation of contactor 100, and micro-switch 33's stroke can be realized through the interval between adjustment first drive coil 31 and the second drive coil 32, micro-gap stroke adjustment of micro-switch 33 is simpler, and is convenient, can adjust according to the user demand.

It should be noted that, the first conducting section 21 and the second conducting section 22 are selectively electrically connected to the first terminal 11 at two sides of the first terminal 11, so that the moving stroke of the conducting member 20 can be increased, and the probability of adhesion between the first conducting section 21 and the first terminal 11 and between the second conducting section 22 and the first terminal 11 during the operation of the contactor 100 can be reduced.

According to the contactor 100 of the embodiment of the invention, on one hand, compared with the technical scheme of a plurality of contactors 100 which are independently arranged, the number of contacts can be reduced, the circuit where the contactor 100 is located can be simplified, the structure of the contactor 100 can be simplified while risk points and power loss are reduced, the occupied space of the contactor 100 is reduced, the production cost of the contactor 100 is reduced, and the arrangement difficulty is reduced; on the other hand, drive micro-gap switch 33's rotation through two drive coils, not only first drive coil 31 and second drive coil 32's volume all can set up littleer, can further improve the space occupation of contactor 100, can realize the stroke adjustment to micro-gap switch 33 through the interval of adjustment first drive coil 31 and second drive coil 32 moreover, can improve contactor 100's application scope, and reasonable micro-gap switch 33 stroke, can reduce the probability of drawing arc and adhesion, the reliability of contactor 100 has been guaranteed.

It should be noted that the reduction of the risk points and the power loss means that the number of terminals 10 is smaller than that of the prior art, and the high voltage loss, the number of arcing and the sticking point caused by the moving contact can be reduced, and the abrasion caused by the action of the contactor 100 can be reduced.

In some embodiments, the distance between the rotation center of the micro switch 33 and any end of the micro switch 33 is smaller than the distance between the contact point of the first conducting section 21 and the first terminal 11 and the rotation center of the micro switch 33, the distance between the contact point of the second conducting section 22 and the first terminal 11 and the rotation center of the micro switch 33, the distance between the contact point of the third conducting section 23 and the second terminal 12 and the rotation center of the micro switch 33, and the distance between the contact point of the third conducting section 23 and the third terminal 13 and the rotation center of the micro switch 33.

That is, the maximum distance from the rotation center of the micro switch 33 to any end thereof is L1, the distance from the rotation center of the micro switch 33 to the contact point of the first terminal 11 and the first conducting segment 21 is L2, the distance from the rotation center of the micro switch 33 to the contact point of the second terminal 12 and the first conducting segment 21 is L3, the distance from the rotation center of the micro switch 33 to the contact point of the second terminal 12 and the third conducting segment 23 is L4, and the distance from the rotation center of the micro switch 33 to the contact point of the third terminal 13 and the third conducting segment 23 is L5, which should satisfy L1 < L2, L1 < L3, L1 < L4, and L1 < L5. Therefore, the movement stroke of the conducting piece 20 driving the third conducting section 23 to move is larger than the movement stroke of the micro switch 33, and the stroke of the micro switch 33 can be enlarged to meet the requirement of the electrical clearance of the high-voltage circuit connected to the contactor 100.

As shown in fig. 2 and 3, the lead member 20 is disposed opposite to the terminal 10 in a first direction, and the driving assembly 30 is disposed opposite to the lead member 20 in a second direction, the first direction being orthogonal to the second direction.

For example, the first direction may be a length direction or a width direction in a horizontal direction, and the second direction corresponds to a height direction, in the contactor 100 according to the embodiment of the present invention, the terminal 10 and the conducting member 20 are arranged at the same height, and the driving assembly 30 is arranged below or above the terminal 10 and the conducting member 20, so that the probability that the contactor 100 is easily broken from the middle when subjected to vibration for a long time on a vehicle is reduced, the service life and the working stability of the contactor 100 are improved, and the contactor 100 is arranged in layers in the upper and lower directions, i.e., high-voltage and low-voltage isolation (a high-voltage conducting portion is arranged above and a low-voltage control portion is arranged below) can be achieved.

From this, contactor 100's arc extinguishing mode no longer limits to inert gas and the magnetic blow-out arc extinguishing complex form, also can realize or not set up the arc extinguishing structure through the mode that insulating liquid soaks, based on the variety of arc extinguishing mode, need not to make insulating isolation to the drive coil, can solve the low pressure inefficacy problem, and need not to adopt pottery and metal brazing technology to carry out contactor 100 processing because need not to pour into inert gas into, also can simplify contactor 100 processing technology, reduce the material process, when improving production efficiency, reduce contactor 100 processing cost.

As shown in fig. 4 and 5, in some embodiments, when the conducting member 20 is located at the first position, the first conducting section 21 is electrically connected to the first terminal 11 at one side of the first terminal 11, and when the conducting member 20 is located at the second position, the second conducting section 22 is electrically connected to the first terminal 11 at the other side of the first terminal 11. Thus, the moving stroke of the first terminal 11 in the electrical connection with the conductive member 20 can be enlarged, and the sticking probability can be further reduced.

In some embodiments, during the circuit control of the contactor 100, the opposite sides of the first conducting section 21 and the second conducting section 22 may hit the first terminal 11 during the movement, and the third conducting section 23 may hit the second terminal 12 or the third terminal 13, so as to generate the operating noise, in order to reduce the operating noise of the contactor 100, a flexible metal material (for example, a soft copper composite material, a soft silver composite material) may be used, or a flexible metal material may be disposed at a portion where the conducting section contacts the terminal 10, so as to reduce the hitting noise, improve the use experience of the contactor 100, and simultaneously, improve the technical problems of large contact resistance and high adhesion probability between the conducting piece 20 and the terminal 10.

As shown in fig. 6, 7 and 8, according to some embodiments of the present invention, the micro switch 33 includes: the two permanent magnets 332 are selectively magnetically attracted with the first driving coil 31 or the second driving coil 32.

Thus, the permanent magnet 332 can drive the body 331 of the microswitch 33 to move under the action of the lorentz force of the first driving coil 31 and the second driving coil 32, the body 331 drives the conducting piece 20 to move so as to switch between the first position and the second position, and when the conducting piece 20 is located at the first position or the second position, the permanent magnets 332 at the two ends are respectively and magnetically adsorbed on the corresponding driving coils, that is, the closed state of the terminal 10 and the corresponding conducting section can be maintained through the magnetic force of the permanent magnets 332, the first driving coil 31 and the second driving coil 32 do not need to be continuously electrified, the power consumption of a low-voltage control part can be reduced, and the energy consumption of the contactor 100 is improved.

More importantly, the microswitch 33 of the invention is in a straight line shape, that is, two ends of the body 331 which is in a plate shape are respectively provided with one permanent magnet 332, and the rotating stroke of the microswitch 33 and further the rotating stroke of the conducting piece 20 can be adjusted by adjusting the distance between the first driving coil 31 and the second driving coil 32, so as to ensure the working reliability of the contactor 100.

In the specific embodiment shown in fig. 9 and 10, the first driving coil 31 and the second driving coil 32 are arranged in series, and both ends of one side facing each other are provided with magnetic conductive sheets 34, and the two permanent magnets 332 selectively magnetically attract with the magnetic conductive sheets 34 of the first driving coil 31 or the magnetic conductive sheets 34 of the second driving coil 32. The magnetic conductive sheets 34 are substantially L-shaped, one end of each magnetic conductive sheet is connected to the end of the driving coil, and the other ends of the two magnetic conductive sheets 34 at the two ends of the same driving coil extend towards each other, so that the structures of the driving coil and the microswitch 33 are more reasonable, and only the magnetic attraction with the magnetic conductive sheets 34 is needed.

It will be appreciated that the polarity of the ends of the two permanent magnets 332 facing away from each other is the same, and that in the energized state the polarity of the first drive coil 31 and the second drive coil 32 is opposite.

Illustratively, as shown in fig. 10, the polarity of the permanent magnet 332 at one end of the body portion 331 is N-S, and the polarity of the permanent magnet 332 at the other end of the body portion 331 is S-N, that is, the magnetic poles of one end of the two permanent magnets 332 facing the body portion 331 are S-pole and S-pole respectively, and the magnetic poles of one end facing away from each other are N-pole and N-pole respectively; in the energized state, current can flow from the first driving coil 31 to the second driving coil 32, at this time, the polarity of one end of the first driving coil 31 is N-pole, the other end is S-pole, the magnetic pole of one end of the second driving coil 32 on the same side is S-pole, and the magnetic pole of the other end of the second driving coil 32 on the same side is N-pole, when current flows from the second driving coil 32 to the first driving coil 31, the polarities of the two driving coils are just opposite.

Thus, when the conducting member 20 is at the first position, the permanent magnet 332 at one end of the micro switch 33 is attracted to the first driving coil 31, and the permanent magnet 332 at the other end is attracted to the second driving coil 32; when the conducting member 20 is at the second position, the permanent magnet 332 at one end of the micro switch 33 is attracted to the second driving coil 32, and the permanent magnet 332 at the other end is attracted to the first driving coil 31. As shown in fig. 9, 10 and 12, according to some embodiments of the present invention, the body portion 331 is provided with a receiving groove a, and the conducting element 20 is disposed in the receiving groove a.

Specifically, the accommodating groove a includes: a first, a second and a third slot portion a1, a2, a3, the first, the second and the third slot portions a1, a2, a3 communicating with each other and accommodating a first, a second and a third conducting segment 21, 22, 23, respectively. Thus, the fixing stability of the conducting part 20 on the micro switch 33 can be improved, so as to improve the stability of the synchronous movement of the conducting part 20 and the micro switch, and to avoid the play of the conducting part 20, so as to improve the working stability and reliability of the contactor 100.

Of course, the matching between the driving coil and the micro switch 33 in the present application is not limited to the above structure, as shown in fig. 11, in other embodiments, the magnetic poles of the two permanent magnets 332 are located in the thickness direction of the body portion 331, the polarities of the same sides of the two permanent magnets 332 are the same, and in the energized state, the polarities of the ends of the same sides of the first driving coil 31 and the second driving coil 32 are the same, so that the same technical effects as those of the above embodiments can be achieved, and are not described again here.

It is understood that the conductive member 20 may be constructed in a Y-shape, a delta-shape or a T-shape, and the present invention is not particularly limited.

Further, the body portion 331 is configured as an insulating member, or an insulating layer is coated inside the receiving groove a. Therefore, the high-low voltage isolation effect between the high-voltage conduction part and the low-voltage control part can be improved, low-voltage failure caused by high-voltage breakdown is avoided, and the working stability of the contactor 100 is improved.

As shown in fig. 1 and 2, in some embodiments, the contactor 100 further comprises: the housing 40, the housing 40 defining a receiving space, the terminal 10, the lead-through 20 and the driving assembly 30 being disposed in the receiving space, at least a portion of the terminal 10 extending out of the housing 40. In this way, the terminal 10, the conductive member 20 and the driving assembly 30 can be spaced from the outside by the arrangement of the housing 40, so that the interference of the external environment to the first driving coil 31 and the second driving coil 32 can be reduced while the working stability is improved, and the control response efficiency of the low-voltage control part is improved.

Further, a low-voltage signal terminal 50 is disposed outside the housing 40, and the low-voltage signal terminal 50 is disposed on the housing 40 in an inserting manner and electrically connected to the first driving coil 31 or the second driving coil 32. It is understood that, in some embodiments, the housing 40 is provided with a wire harness outlet, a portion of the low-voltage signal terminal 50 extending into the housing 40 is electrically connected to the first driving coil 31 or the second driving coil 32, and the other end of the low-voltage signal terminal is led out of the housing 40 through the wire harness outlet, in other embodiments, the low-voltage signal terminal 50 is fixed on the housing 40 in a plugging manner, a corresponding socket is provided on the housing 40, the socket is electrically connected to the first driving coil 31 or the second driving coil 32, and the socket low-voltage signal terminal 50 is plugged and matched, so that the appearance of the contactor 100 of the present invention is consistent with that of the conventional contactor 100, the structural design and material switching are facilitated, and the development period and the development cost can be reduced.

It should be noted that the contactor 100 of the present invention is not limited to the above-mentioned structure, and in other embodiments, the contact 100 may be formed as a "horizontal" contactor 100 by changing the plane of the mounting angle coordinate of the contactor 100, so as to change the position of the insulating medium in the housing 40 of the contactor 100, thereby optimizing the electrical gap distance.

According to some embodiments of the present invention, the contactor 100 further comprises a sensor disposed adjacent to the first terminal 11 or the second terminal 12 or the third terminal 13 or the conducting member 20 and adapted to detect a circuit signal of the first terminal 11 or the second terminal 12 or the third terminal 13 or the conducting member 20 in real time, wherein the circuit signal comprises: temperature variations, voltage variations, and current variations.

Thus, by arranging the sensor, as the first terminal 11 is connected with the second terminal 12 or the third terminal 13 through the conducting piece 20, the current and the heat value of the high-voltage circuit are changed, and correspondingly, a temperature change occurs, the sensor can acquire change information (temperature change, current change and the like) in the working process of the high-voltage circuit and transmit the change information to the corresponding controller in the form of a circuit signal, the controller judges whether the change information reaches a cut-off threshold (temperature threshold, voltage threshold and current threshold) of the high-voltage circuit according to the circuit signal, and when the high-voltage circuit needs to be cut off, other positions of the circuit where the contactor 100 is located are controlled to be cut off (for example, other contactors are controlled to be cut off), so that a fuse is not needed to be arranged, the high-voltage loss is reduced, the cost is reduced, and after the control circuit is cut off, when the electric equipment adopting the contactor 100 needs to continue to work, the available high voltage of the electric equipment can be ensured, and the safety can be improved.

It should be noted that, after the fuse is blown, the high voltage circuit is completely disconnected, and by providing the controller and the sensor, even if the high voltage circuit needs to be disconnected based on the information obtained by the sensor, the high voltage circuit can be still high under the limit condition to improve the safety, for example: the contactor 100 is applied to the vehicle 1000, when the circuit information indicates that the contactor 100 needs to be opened but the vehicle 1000 is in a dangerous condition and needs to be maintained, the high-voltage electric state can be maintained, and after the vehicle runs to a safe position or the dangerous condition is relieved, other positions of the circuit where the contactor 100 is located are controlled to be opened.

According to some embodiments of the present invention, the first terminal 11 is configured as an input terminal, the second terminal 12 and the third terminal 13 are configured as output terminals; or the first terminal 11 is configured as an output terminal and the second terminal 12 and the third terminal 13 are configured as input terminals.

That is, in some embodiments, the contactor 100 of the present invention may be incorporated into an operating circuit having one input and two outputs; in other embodiments, the contactor 100 of the present invention may be connected to an operating circuit having two input terminals corresponding to one output terminal, so as to reduce the number of the contactors 100, and simplify the high-voltage circuit connected to the high-voltage conducting part.

As shown in fig. 16, 17 and 18, the first terminal 11 includes: the first connection end 111 and the first interface 112 are connected to each other, and the second connection end 12 includes: a second connection terminal 121 and a second interface 122 connected to each other, and the third connection terminal 13 includes: the first connection end 111 is electrically connected to the first conducting section 21 or the second conducting section 22, the second connection end 121 and the third connection end 131 are selectively connected to the third conducting section 23, and the first interface 112, the second interface 122, and the third interface 132 may be configured in plurality.

That is to say, the contactor 100 of the present application can realize the control of a plurality of electric devices through the same contactor 100, and each terminal can be provided with a plurality of interfaces, so as to further simplify the circuit where the plurality of electric devices are located.

As shown in fig. 20, the charging pile 2000 according to the embodiment of the present invention includes: the contactor 100 in the above embodiment.

According to the charging pile 2000 of the embodiment of the present invention, the contactor 100 is adopted, and the technical effect is consistent with that of the contactor 100, which is not described herein again.

As shown in fig. 19, a vehicle 1000 according to an embodiment of the present invention includes: the contactor 100 in the above embodiment.

According to the vehicle 1000 of the embodiment of the present invention, the contactor 100 has the same technical effect as the contactor 100, and the details are not repeated herein.

Referring to fig. 13-15, several use scenarios are possible for the vehicle 1000 of the present invention using the contactor 100 described above.

As shown in fig. 13, in a usage scenario where the in-vehicle discharging socket and the out-vehicle discharging socket cannot be loaded at the same time, the vehicle-mounted charger and the DC/DC converter are electrically connected to the first terminal 11 through a wire harness, the second terminal 12 is electrically connected to the in-vehicle discharging socket, and the third terminal 13 is electrically connected to the out-vehicle discharging socket, so that the first terminal 11 is controlled to be conducted to the second terminal 12 or to be conducted to the third terminal 13 through the low-voltage control portion, thereby respectively realizing the in-vehicle discharging socket loaded or the out-vehicle discharging socket loaded, avoiding the phenomenon that the in-vehicle discharging socket and the out-vehicle discharging socket are simultaneously loaded, and improving the usage safety.

As shown in fig. 14, in a usage scenario where the dc charging socket charges the battery pack, charging voltages of dc charging guns equipped in different charging piles are different, some charging guns can directly charge the battery pack, other charging guns need to boost and then charge, the dc charging socket can be correspondingly electrically connected to the first terminal 11, the second terminal 12 is electrically connected to the battery pack and provided with a dc boost circuit, the third terminal 13 is directly electrically connected to the battery pack, when the charging guns needing to boost are used for charging, the first terminal 11 is conducted to the second terminal 12, and the charging is performed after boosting, when the charging is performed without boosting, the first terminal 11 is conducted to the third terminal 13 through the conducting piece 20, thereby improving adaptability of the vehicle 1000, ensuring that charging guns of different specifications can all charge, and reducing unnecessary high voltage loss.

As shown in fig. 15, for the scheme of dual motors in the whole vehicle, when the dual-motor winding is used for dc charging and boosting, in order to prolong the service life of the motors, under the use scenario that the two motors are replaced with each other for dc charging and boosting, the contactor 100 of the present invention can control the switching between the two motors, so as to avoid overheating of the motor winding of a certain motor during the boosting process, and prolong the service life of the motor.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present invention, "a plurality" means two or more.

In the description of the invention, "on" or "under" a first feature may include that the first and second features are in direct contact, and may also include that the first and second features are not in direct contact but are in contact via another feature between them.

In the description of the invention, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (18)

1. A contactor, comprising:

a terminal, the terminal comprising: a first terminal, a second terminal, and a third terminal;

lead to piece and drive assembly, the drive assembly includes: the microswitch is rotatably arranged between the first driving coil and the second driving coil and is connected with the conducting piece, and the microswitch is suitable for driving the conducting piece to be switched between a first position and a second position under the action of magnetic force of the first driving coil and the second driving coil; wherein

The conduction piece is provided with a first conduction section, a second conduction section and a third conduction section, the conduction piece is located at the first position, the first conduction section is electrically connected with the first wiring terminal, the third conduction section is electrically connected with the second wiring terminal, the conduction piece is located at the second position, the second conduction section is electrically connected with the first wiring terminal, and the third conduction section is electrically connected with the third wiring terminal.

2. The contactor according to claim 1, wherein a distance between a center of rotation of said microswitch and any one end of said microswitch is smaller than a distance between a contact point of said first conducting section and said first terminal and a center of rotation of said microswitch, a distance between a contact point of said second conducting section and said first terminal and a center of rotation of said microswitch, a distance between a contact point of said third conducting section and said second terminal and a center of rotation of said microswitch, and a distance between a contact point of said third conducting section and said third terminal and a center of rotation of said microswitch.

3. The contactor as claimed in claim 1, wherein said micro switch comprises: the permanent magnets are selectively and magnetically attracted with the first driving coil or the second driving coil.

4. The contactor according to claim 3, wherein the first drive coil and the second drive coil are arranged in series, and both ends of one side facing each other are provided with magnetic conductive sheets, and the two permanent magnets selectively magnetically attract with the magnetic conductive sheets of the first drive coil or the magnetic conductive sheets of the second drive coil.

5. A contactor according to claim 3, wherein the polarities of the ends of the two permanent magnets facing away from each other are the same, and in the energized state, the polarities of the ends of the first and second drive coils on the same side are opposite.

6. The contactor according to claim 3, wherein the magnetic poles of the two permanent magnets are located in the thickness direction of the body portion, the polarities of the same sides of the two permanent magnets are the same, and the polarities of the same sides of the first drive coil and the second drive coil are the same in the energized state.

7. The contactor as claimed in claim 3, wherein said body portion is provided with a receiving groove, and said conducting member is disposed in said receiving groove.

8. The contactor as claimed in claim 7, wherein said receiving slot comprises: the first groove part, the second groove part and the third groove part are communicated with each other and are respectively used for accommodating the first conducting section, the second conducting section and the third conducting section.

9. The contactor as claimed in claim 7, wherein said body portion is configured as an insulating member or is coated with an insulating layer inside said receiving groove.

10. The contactor according to claim 1, wherein said conducting member is positioned in said first position, said first conducting section is electrically connected to said first terminal on one side of said first terminal, and said conducting member is positioned in said second position, said second conducting section is electrically connected to said first terminal on the other side of said first terminal.

11. The contactor as claimed in claim 1, wherein said conducting member is disposed opposite said terminal in a first direction, and said driving unit is disposed opposite said conducting member in a second direction, said first direction being orthogonal to said second direction.

12. The contactor as claimed in claim 1, further comprising: the casing, the accommodation space is injectd to the casing, the wiring end, lead to the piece and drive assembly all sets up in the accommodation space, at least part of wiring end stretches out the casing.

13. The contactor according to claim 12, wherein a low voltage signal terminal is further provided outside the housing, the low voltage signal terminal being connected to the first drive coil or the second drive coil.

14. The contactor according to claim 1, further comprising a sensor disposed adjacent to said first or second or third terminal or said conducting member and adapted to detect in real time a circuit signal of said first or second or third terminal or said conducting member, said circuit signal comprising: temperature variations, voltage variations, and current variations.

15. The contactor according to any of claims 1-14, wherein said first terminal is configured as an input terminal, said second terminal and said third terminal are configured as output terminals;

or the first terminal is configured as an output terminal, and the second terminal and the third terminal are configured as input terminals.

16. The contactor according to claim 1, wherein said first terminal comprises: first link and the first interface of interconnect, the second link includes: second link and second interface of interconnect, the third link includes: the first connection end is selectively and electrically connected with the first conduction section or the second conduction section, the third conduction section is selectively and electrically connected with the second connection end or the third connection end, and the first interface, the second interface and the third interface can be constructed into a plurality of interfaces.

17. A charging pile, comprising: the contactor of any one of claims 1-16.

18. A vehicle, characterized by comprising: the contactor of any one of claims 1-16.

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