Remote control circuit and system for vehicle power switch

Abstract

The embodiment of the invention discloses a vehicle power switch remote control circuit and system. The circuit comprises a remote control module and a contactor. The contactor comprises a contactor coil and a contactor switch, the contactor coil is mechanically connected with the contactor switch, and the contactor coil is used for controlling the on-off state of the contactor switch; one end of the contactor coil and the first end of the contactor switch are both electrically connected with the negative electrode of the vehicle power supply, the second end of the contactor coil is electrically connected with the first end of the remote control module, and the second end of the remote control module and the positive power supply end of the vehicle-mounted electric appliance are both electrically connected with the positive electrode of the vehicle power supply. The second end of the contactor switch is electrically connected with the negative power supply end of the vehicle-mounted electric appliance; and the remote control module is used for receiving the power supply control signal and controlling the connection and disconnection of the contactor coil and the vehicle power supply connection loop according to the power supply control signal so as to control the contactor switch to connect or disconnect the vehicle power supply and the vehicle-mounted electric appliance connection loop, thereby realizing the remote control of the vehicle power supply switch.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of vehicles, in particular to a vehicle power switch remote control circuit and system. BACKGROUND

[0002] At present, the power supply switch (also called negative switch) of the engineering vehicle generally adopts a mechanical switch, and the driver needs to manually control the power supply switch, however, the driver generally does not have the habit of disconnecting the power supply switch after stopping the vehicle, so that the vehicle battery cannot be started due to long-term leakage. SUMMARY

[0003] The embodiment of the present application provides a vehicle power switch remote control circuit and system to realize remote control of the vehicle power switch.

[0004] In a first aspect, the embodiment of the present application provides a vehicle power switch remote control circuit, which comprises a remote control module and a contactor.

[0005] The contactor comprises a contactor coil and a contactor switch, the contactor coil and the contactor switch are mechanically connected, and the contactor coil is used to control the on-off state of the contactor switch.

[0006] One end of the contactor coil and a first end of the contactor switch are electrically connected with a negative electrode of a vehicle power supply, a second end of the contactor coil is electrically connected with a first end of the remote control module, a second end of the remote control module and a positive power supply end of a vehicle-mounted electrical appliance are electrically connected with a positive electrode of the vehicle power supply, and a second end of the contactor switch is electrically connected with a negative power supply end of the vehicle-mounted electrical appliance.

[0007] The remote control module is used to receive a power control signal, and control the on-off of the contactor coil and a connection loop of the vehicle power supply according to the power control signal, so as to control the contactor switch to turn on or turn off the connection loop of the vehicle power supply and the vehicle-mounted electrical appliance.

[0008] Optionally, the remote control module comprises a first relay and a vehicle-mounted Internet of Things unit.

[0009] The first relay comprises a first relay coil and a first relay switch, the first relay coil and the first relay switch are mechanically connected, and the first relay coil is used to control the on-off state of the first relay switch.

[0010] The first end of the first relay switch is the first end of the remote control module, the second end of the first relay switch is the second end of the remote control module, the first end of the vehicle Internet of Things unit is electrically connected with the first end of the first relay coil, and the second end of the vehicle Internet of Things unit is electrically connected with the second end of the first relay coil.

[0011] Optionally, the vehicle Internet of Things unit comprises a switch subunit, a control subunit and a communication subunit.

[0012] The first end of the switch subunit is the first end of the vehicle Internet of Things unit, the second end of the switch subunit is the second end of the vehicle Internet of Things unit, the third end of the switch subunit is electrically connected with the first end of the control subunit, and the second end of the control subunit is electrically connected with the communication subunit.

[0013] Optionally, the switch subunit comprises a second relay, a switch tube and a power supply.

[0014] The second relay comprises a second relay coil and a second relay switch, the second relay coil and the second relay switch are mechanically connected, and the second relay coil is used for controlling the on-off state of the second relay switch.

[0015] The control end of the switch tube is the third end of the switch subunit, the first end of the second relay coil is connected with the first end of the second relay, the second end of the second relay coil and the first end of the second relay switch are connected with the positive electrode of the power supply, the second end of the second relay switch is the first end of the switch subunit, the second electrode of the switch tube is connected with the negative electrode of the power supply and serves as the second end of the switch tube.

[0016] Optionally, the control subunit comprises a single-chip microcomputer.

[0017] Optionally, the communication subunit comprises a 4G communication device or a 5G communication device.

[0018] Optionally, the vehicle power switch remote control circuit further comprises an on-site control module.

[0019] The first end and the second end of the on-site control module are connected with the positive electrode of the vehicle power supply, and the third end or the fourth end of the on-site control module is electrically connected with the second end of the remote control module.

[0020] The first end and the third end of the on-site control module are in communication, or the second end or the fourth end of the on-site control module is in communication.

[0021] Optionally, the on-site control module comprises a double-control switch.

[0022] The first end of the double control switch is the first end of the field control module, the second end of the double control switch is the second end of the field control module, the third end of the double control switch is the third end of the field control module, and the fourth end of the double control switch is the fourth end of the field control module.

[0023] In a second aspect, the embodiment of the present application further provides a vehicle power switch remote control system, which comprises a server and the vehicle power switch remote control circuit provided by any of the embodiments of the present application.

[0024] The server is in communication connection with the remote control module.

[0025] Optionally, the vehicle power switch remote control system further comprises a host computer.

[0026] The host computer is in communication connection with the server.

[0027] The embodiment of the present application indirectly controls the contactor switch (vehicle power switch) by controlling the on-off of the contactor coil of the contactor through the remote control module, thereby realizing remote control of the vehicle power switch. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0029] Figure 1 A structure schematic diagram of a vehicle power switch remote control circuit provided by the embodiment of the present application;

[0030] Figure 2 A structure schematic diagram of another vehicle power switch remote control circuit provided by the embodiment of the present application;

[0031] Figure 3 A structure schematic diagram of another vehicle power switch remote control circuit provided by the embodiment of the present application;

[0032] Figure 4 A structure schematic diagram of a vehicle power switch remote control circuit provided by the embodiment of the present application;

[0033] Figure 5 A structure schematic diagram of a vehicle power switch remote control system provided by the embodiment of the present application. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0035] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0036] Figure 1 A schematic diagram of a vehicle power switch remote control circuit according to an embodiment of the present invention is shown in FIG. Figure 1 As shown, the vehicle power switch remote control circuit includes a remote control module 110 and a contactor 120;

[0037] The contactor 120 includes a contactor coil M1 and a contactor switch K1. The contactor coil M1 and the contactor switch K1 are mechanically connected. The contactor coil M1 is used to control the on / off state of the contactor switch K1.

[0038] One end of the contactor coil M1 and the first end of the contactor switch K1 are both electrically connected to the negative pole of the vehicle power supply 210, the second end of the contactor coil M1 is electrically connected to the first end of the remote control module 110, the second end of the remote control module 110 and the positive power supply end of the vehicle electrical appliance 220 are both electrically connected to the positive pole of the vehicle power supply 210, and the second end of the contactor switch K1 is electrically connected to the negative power supply end of the vehicle electrical appliance 220;

[0039] The remote control module 110 is used to receive a power control signal and control the on / off connection between the contactor coil M1 and the vehicle power supply 210 according to the power control signal, so as to control the contactor switch K1 to open or disconnect the connection between the vehicle power supply 210 and the vehicle-mounted electrical appliance 220.

[0040] The vehicle power supply 210 includes a battery pack to supply power to the vehicle electrical appliances 220. The power control signal is a signal to control the connection circuit of the vehicle power supply 210 and the vehicle electrical appliances 220, which includes a power closing signal and a power opening signal. The remote control module 110 can receive the power control signal through the network to control the contactor 120 to frequently turn on or off the connection circuit of the vehicle power supply 210 and the vehicle electrical appliances 220. When the remote control module 110 receives the power control signal as the power closing signal, the contactor 120 is controlled to turn on the connection circuit of the vehicle power supply 210 and the vehicle electrical appliances 220. When the remote control module 110 receives the power control signal as the power opening signal, the contactor 120 is controlled to turn off the connection circuit of the vehicle power supply 210 and the vehicle electrical appliances 220.

[0041] In addition, the contactor switch K1 of the contactor 120 is a vehicle power supply master switch (negative switch), which includes a normally open switch. The mechanical connection structure (for example, a magnet or a combination structure of a magnet and a spring) between the contactor switch K1 and the contactor coil M1 pushes the contactor switch K1 to close under the action of the magnetic field generated by the energization of the contactor coil M1. The mechanical connection structure between the contactor switch K1 and the contactor coil M1 makes the contactor switch K1 open by the pulling force of the mechanical connection structure itself or by the rebound force of the contactor switch K1 itself when the contactor coil M1 is de-energized.

[0042] Through the above connection relationship, the working principle of the vehicle power supply switch remote control circuit is described as follows: the remote server sends the power control signal to the remote control module 110 through the wireless network; the remote control module 110 receives the power control signal through the wireless network. When the remote control module 110 receives the power control signal as the power closing signal, the remote control module 110 controls the connection circuit of the contactor coil M1 and the vehicle power supply 210 to be turned on, so that the contactor coil M1 is energized, the contactor coil M1 generates a magnetic field, and the mechanical connection structure between the contactor switch K1 and the contactor coil M1 pushes the contactor switch K1 to close under the action of the magnetic field, so as to turn on the connection circuit of the vehicle power supply 210 and the vehicle electrical appliances 220. When the remote control module 110 receives the power control signal as the power opening signal, the remote control module 110 controls the connection circuit of the contactor coil M1 and the vehicle power supply 210 to be turned off, so that the contactor coil M1 is de-energized. At this time, the mechanical connection structure between the contactor switch K1 and the contactor coil M1 can make the contactor switch K1 open by the pulling force of the mechanical connection structure itself or by the rebound force of the contactor switch K1 itself, so as to turn off the connection circuit of the vehicle power supply 210 and the vehicle electrical appliances 220.

[0043] The embodiment of the present application adopts the contactor switch K1 of the contactor 120 as the vehicle power switch, controls the on-off of the contactor coil M1 of the contactor 120 through the remote control module 110, indirectly controls the contactor switch K1 (the vehicle power switch), and further realizes the remote control of the vehicle power switch.

[0044] On the basis of the above-mentioned embodiment, optionally, Figure 2 Another vehicle power switch remote control circuit structure schematic diagram provided by the embodiment of the present application is shown in the figure. Figure 2 As shown in the figure, the remote control module 110 includes a first relay 111 and a vehicle-mounted Internet of Things unit 112;

[0045] The first relay 111 includes a first relay coil M2 and a first relay switch K2, and the first relay coil M2 and the first relay switch K2 are mechanically connected. The first relay coil M2 is used to control the on-off state of the first relay switch K2.

[0046] The first end of the first relay switch K2 is used as the first end of the remote control module 110, the second end of the first relay switch K2 is used as the second end of the remote control module 110, the first end of the vehicle-mounted Internet of Things unit 112 is electrically connected with the first end of the first relay coil M2, and the second end of the vehicle-mounted Internet of Things unit 112 is electrically connected with the second end of the first relay coil M2.

[0047] The vehicle-mounted Internet of Things unit 112 is used to receive a power control signal, and control the on-off of the first relay coil M2 of the first relay 111 according to the power control signal, so that the first relay coil M2 controls the on-off state of the first relay switch K2, and further controls the on-off of the connection loop of the contactor coil M1 and the vehicle power supply 210, so as to control the contactor switch K1 to turn on or off the connection loop of the vehicle power supply 210 and the vehicle-mounted electrical appliance 220.

[0048] Specifically, the first relay switch K2 of the first relay 111 includes a normally open switch. The mechanical connection structure (for example, a magnet or a combination structure of a magnet and a spring) between the first relay switch K2 and the first relay coil M2 will push the first relay switch K2 to close under the action of the magnetic field generated by the power-on of the first relay coil M2, and the mechanical connection structure between the first relay switch K2 and the first relay coil M2 will make the first relay switch K2 open through the pulling force of the mechanical connection structure itself or through the rebound force of the first relay switch K2 when the first relay coil M2 is powered off.

[0049] Through the above connection relationship, the working principle of the vehicle power switch remote control circuit is described: the remote server sends a power control signal to the remote control module 110 through the wireless network; the vehicle Internet of Things unit 112 receives the power control signal through the wireless network, when the power control signal received by the vehicle Internet of Things unit 112 is a power closing signal, the vehicle Internet of Things unit 112 will control the first relay coil M2 to be powered on, the first relay coil M2 generates a magnetic field, the mechanical connection structure between the first relay switch K2 and the first relay coil M2 is pushed to close the first relay switch K2 under the action of the magnetic field generated by the first relay coil M2, the connection loop of the contactor coil M1 and the vehicle power supply 210 is conducted, the contactor coil M1 is powered on to generate a magnetic field, the mechanical connection structure between the contactor switch K1 and the contactor coil M1 is pushed to close the contactor switch K1 under the action of the magnetic field, to conduct the connection loop of the vehicle power supply 210 and the vehicle electrical appliance 220; when the power control signal received by the vehicle Internet of Things unit 112 is a power-off signal, the vehicle Internet of Things unit 112 will control the first relay coil M2 to be powered off, so that the mechanical connection structure between the first relay switch K2 and the first relay coil M2 can make the first relay switch K2 open through its own tension or through the rebound force of the first relay switch K2, control the connection loop of the contactor coil M1 and the vehicle power supply 210 to be disconnected, so that the contactor coil M1 is powered off, at this time the mechanical connection structure between the contactor switch K1 and the contactor coil M1 can make the contactor switch K1 open through its own tension or through the rebound force of the contactor switch K1, to disconnect the connection loop of the vehicle power supply 210 and the vehicle electrical appliance 220.

[0050] On the basis of the above embodiment, optionally, Figure 3 Another vehicle power switch remote control circuit structure schematic diagram provided by the embodiment of the application. As Figure 3 shown, the vehicle Internet of Things unit 112 includes a switch subunit 1121, a control subunit 1122 and a communication subunit 1123;

[0051] The first end of the switch subunit 1121 is the first end of the vehicle Internet of Things unit 112, the second end of the switch subunit 1121 is the second end of the vehicle Internet of Things unit 112, the third end of the switch subunit 1121 is electrically connected with the first end of the control subunit 1122, and the second end of the control subunit 1122 is electrically connected with the communication subunit 1123.

[0052] The communication subunit 1123 is configured to receive the power control signal, and the control subunit 1122 is configured to control the switching subunit 1121 to control the first relay coil M2 of the first relay 111 to be turned on or turned off according to the power control signal, so that the first relay coil M2 controls the on-off state of the first relay switch K2, and then controls the on-off of the connection circuit of the contactor coil M1 and the vehicle power supply 210, so as to control the contactor switch K1 to turn on or turn off the connection circuit of the vehicle power supply 210 and the vehicle electrical appliance 220.

[0053] Specifically, the switching subunit 1121 includes a second relay 11211, a switching tube Q, and a power supply U.

[0054] The second relay 11211 includes a second relay coil M3 and a second relay switch K3, and the second relay coil M3 and the second relay switch K3 are mechanically connected. The second relay coil M3 is configured to control the on-off state of the second relay switch K3.

[0055] The control end of the switching tube Q is the third end of the switching subunit 1121, the first stage of the switching tube Q is connected with the first end of the second relay coil M3, the second end of the second relay coil M3 and the first end of the second relay switch K3 are both connected with the positive electrode of the power supply U, the second end of the second relay switch K3 is the first end of the switching subunit 1121, the second stage of the switching tube Q and the negative electrode of the power supply U are connected, and the second stage of the switching tube Q is the second end of the switching tube Q.

[0056] The remote server sends the power control signal to the remote control module 110 through the wireless network. When the communication subunit 1123 receives the power control signal, the control subunit 1122 controls the switching tube Q to be turned on, so that the connection circuit of the power supply U and the second relay coil M3 is turned on, the second relay coil M3 is powered, the second relay coil M3 generates a magnetic field, the mechanical connection structure between the second relay switch K3 and the second relay coil M3 is pushed to close the second relay switch K3 under the action of the magnetic field generated by the second relay coil M3, the first relay coil M2 is powered to generate a magnetic field, the mechanical connection structure between the first relay switch K2 and the first relay coil M2 is pushed to close the first relay switch K2 under the action of the magnetic field generated by the first relay coil M2, the connection circuit of the contactor coil M1 and the vehicle power supply 210 is turned on, the contactor coil M1 is powered to generate a magnetic field, and the mechanical connection structure between the contactor switch K1 and the contactor coil M1 is pushed to close the contactor switch K1 under the action of the magnetic field, so as to turn on the connection circuit of the vehicle power supply 210 and the vehicle electrical appliance 220.

[0057] When the power control signal received by the communication subunit 1123 is a power-off signal, the control subunit 1122 controls the switch tube Q to be turned off, so that the connection circuit of the power supply U and the second relay coil M3 is disconnected, the mechanical connection structure between the second relay switch K3 and the second relay coil M3 can be disconnected through the pull force of the mechanical connection structure itself or through the rebound force of the second relay switch K3 itself, so that the first relay coil M2 is powered off, the mechanical connection structure between the first relay switch K2 and the first relay coil M2 can be disconnected through the pull force of the mechanical connection structure itself or through the rebound force of the first relay switch K2 itself, the connection circuit of the contactor coil M1 and the vehicle power supply 210 is disconnected, the contactor coil M1 is powered off, at this time, the mechanical connection structure between the contactor switch K1 and the contactor coil M1 can be disconnected through the pull force of the mechanical connection structure itself or through the rebound force of the contactor switch K1 itself, so as to disconnect the connection circuit of the vehicle power supply 210 and the vehicle electrical appliance 220.

[0058] In addition, the control subunit 1122 comprises a single-chip microcomputer. The communication subunit 1123 comprises a 4G communicator or a 5G communicator.

[0059] On the basis of the above-mentioned embodiments, optionally, Figure 4 A structural schematic diagram of a vehicle power supply switch remote control circuit provided by the embodiments of the present application is shown in the figure. Figure 4 As shown in the figure, the vehicle power supply switch remote control circuit further comprises a field control module 130.

[0060] The first end and the second end of the field control module 130 are connected with the positive pole of the vehicle power supply 210, and the third end or the fourth end of the field control module 130 is electrically connected with the second end of the remote control module 110; the first end and the third end of the field control module 130 are communicated, or the second end or the fourth end of the field control module 130 is communicated.

[0061] Specifically, the field control module 130 comprises a double-control switch T; the first end of the double-control switch T is the first end of the field control module 130, the second end of the double-control switch T is the second end of the field control module 130, the third end of the double-control switch T is the third end of the field control module 130, and the fourth end of the double-control switch T is the fourth end of the field control module 130.

[0062] If the switch between the first end of the double-control switch T and the third end of the double-control switch T is a normally open switch, and the switch between the second end of the double-control switch T and the fourth end of the double-control switch T is a normally closed switch, when the first relay coil M2 is powered on, the second end of the first relay switch K2 is connected with the fourth end of the double-control switch T, and when the first relay coil M2 is powered off, the second end of the first relay switch K2 is connected with the third end of the double-control switch T.

[0063] When the vehicle power switch cannot be remotely controlled, the vehicle power switch can be closed by controlling the double control switch T on site. For example, if the switch between the first end of the double control switch T and the third end of the double control switch T is a normally open switch, the switch between the second end of the double control switch T and the fourth end of the double control switch T is a normally closed switch, the first relay coil M2 is powered off, and the second end of the first relay switch K2 is connected to the third end of the double control switch T, at this time, the double control switch T can be manually controlled to make the switch between the first end and the third end of the double control switch T closed, and the switch between the second end and the fourth end of the double control switch T open, thereby realizing that the contactor coil M1 is connected to the vehicle power supply 210 connection loop conduction, and further making the contactor coil M1 control the contactor switch K1 to conduct the connection loop of the vehicle power supply 210 and the vehicle-mounted electrical appliance 220.

[0064] On the basis of the above-mentioned embodiments, optionally, Figure 5 A structural schematic diagram of a vehicle power switch remote control system provided by an embodiment of the present application is shown in the figure. Figure 5 As shown in the figure, the vehicle power switch remote control system comprises a server 310 and a vehicle power switch remote control circuit provided by any embodiment of the present application; the server 310 is in communication connection with the remote control module 110.

[0065] The server 310 is configured to send a power control signal to the remote control module 110 through a wireless network.

[0066] In addition, the vehicle power switch remote control system comprises the vehicle power switch remote control circuit provided by any embodiment of the present application, and therefore has the beneficial effects of the vehicle power switch remote control circuit provided by any embodiment of the present application, which will not be described here.

[0067] On the basis of the above-mentioned embodiments, optionally, the vehicle power switch remote control system further comprises a host computer 320; the host computer 320 is in communication connection with the server 310.

[0068] The host computer 320 comprises a computer or a mobile phone. The administrator logs in the server 310 through the computer or the mobile phone, issues a power control instruction (power closing instruction or power disconnecting instruction) to the server 310, and the server 310 can generate a power control signal through a preset power control logic to realize remote control of the vehicle power switch.

[0069] It should be understood that the various forms of flow shown above can be used to reorder, add or delete steps. For example, the steps described in the present application can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions of the present application can be achieved, which are not limited herein.

[0070] The above detailed description does not limit the scope of the application. Various modifications, combinations, sub-combinations and alternatives can be made to the detailed description. Any modification, equivalent replacement and improvement etc. made within the spirit and principle of the application shall be included in the scope of the application.

Claims

1. A vehicle power switch remote control circuit, characterized in that: Includes remote control module and contactor; The contactor comprises a contactor coil and a contactor switch, wherein the contactor coil and the contactor switch are mechanically connected, and the contactor coil is used to control the on / off state of the contactor switch; One end of the contactor coil and the first end of the contactor switch are both electrically connected to the negative pole of the vehicle power supply, the second end of the contactor coil is electrically connected to the first end of the remote control module, the second end of the remote control module and the positive power supply end of the vehicle electrical appliance are both electrically connected to the positive pole of the vehicle power supply, and the second end of the contactor switch is electrically connected to the negative power supply end of the vehicle electrical appliance; The remote control module is used to receive a power control signal and control the on-off of the contactor coil and the vehicle power connection circuit according to the power control signal, so as to control the contactor switch to turn on or off the connection circuit between the vehicle power and the on-board electrical appliance.

2. The vehicle power switch remote control circuit according to claim 1, characterized in that: The remote control module includes a first relay and an on-board Internet of Things unit; The first relay includes a first relay coil and a first relay switch, the first relay coil and the first relay switch are mechanically connected, and the first relay coil is used to control the on-off state of the first relay switch; The first end of the first relay switch serves as the first end of the remote control module, the second end of the first relay switch serves as the second end of the remote control module, the first end of the on-board Internet of Things unit is electrically connected to the first end of the first relay coil, and the second end of the on-board Internet of Things unit is electrically connected to the second end of the first relay coil.

3. The vehicle power switch remote control circuit according to claim 2, characterized in that: The vehicle-mounted Internet of Things unit includes a switch subunit, a control subunit and a communication subunit; The first end of the switch subunit serves as the first end of the vehicle-mounted Internet of Things unit, the second end of the switch subunit serves as the second end of the vehicle-mounted Internet of Things unit, the third end of the switch subunit is electrically connected to the first end of the control subunit, and the second end of the control subunit is electrically connected to the communication subunit.

4. The vehicle power switch remote control circuit according to claim 3, characterized in that: The switch subunit includes a second relay, a switch tube and a power supply; The second relay includes a second relay coil and a second relay switch, the second relay coil and the second relay switch are mechanically connected, and the second relay coil is used to control the on-off state of the second relay switch; The control end of the switching tube serves as the third end of the switching subunit, the first stage of the switching tube is connected to the first end of the second relay coil, the second end of the second relay coil and the first end of the second relay switch are both connected to the positive electrode of the power supply, the second end of the second relay switch serves as the first end of the switching subunit, the second pole of the switching tube is connected to the negative pole of the power supply and serves as the second end of the switching tube.

5. The vehicle power switch remote control circuit according to claim 3, characterized in that: The control subunit includes a single chip microcomputer.

6. The vehicle power switch remote control circuit according to claim 3, characterized in that: The communication subunit includes a 4G communicator or a 5G communicator.

7. The vehicle power switch remote control circuit according to claim 1, characterized in that: Also includes field control module; The first and second ends of the field control module are connected to the positive electrode of the vehicle power supply, and the third or fourth end of the field control module is electrically connected to the second end of the remote control module; The first end and the third end of the field control module are in communication, or the second end or the fourth end of the field control module is in communication.

8. The vehicle power switch remote control circuit according to claim 7, characterized in that: The field control module includes a double-control switch; The first end of the double-control switch serves as the first end of the field control module, the second end of the double-control switch serves as the second end of the field control module, the third end of the double-control switch serves as the third end of the field control module, and the fourth end of the double-control switch serves as the fourth end of the field control module.

9. A vehicle power switch remote control system, characterized in that: comprising a server and a vehicle power switch remote control circuit according to any one of claims 1 to 8; The server is communicatively connected to the remote control module.

10. The vehicle power switch remote control system according to claim 9, characterized in that: Also includes the host computer; The host computer is communicatively connected to the server.

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