Electronic power supply protection control switch and electric vehicle
By designing an electronic power protection control switch including a control module, a remote control module, a rated overcurrent automatic trigger module and a manual switch module, the problem of micro current in the prior art cannot be cut off and the power supply cannot be cut off manually is solved, and the function of automatic and manual power supply is realized, improving the safety and flexibility of electric vehicles.
Patent Information
- Application Number
- CN202420616145.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-03-28
AI Technical Summary
The existing electric vehicle power protection control device cannot achieve shutdown and power outage during micro current, and cannot manually control the power outage, and cannot cut off the power output circuit in a timely manner in the faulty state or when the battery catches fire.
An electronic power protection control switch is designed, including a control module, a remote control module, a rated overcurrent automatic trigger module and a manual switch module. The device can detect discharge current in real time, automatically turn off the main power switch when the current exceeds the setting limit, and can accept external signal control commands to turn off the power switch.
It can trip through micro current, and can accept external signal control instructions, making the gate easier to control. At the same time, it can manually operate and shut down the power supply, improving the safety and flexibility of electric vehicles.
Smart Images
Figure CN222691370U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power control switches, in particular to an electronic power protection control switch and an electric vehicle. Background Art
[0002] In order to prevent power overload or short circuit, electric vehicles are usually equipped with power protection control devices such as overcurrent releases to improve the safety of electric vehicles. When the current exceeds a certain predetermined value, the power protection control device used in existing electric vehicles will open the switch of the power protection control device to cut off the power supply, that is, at the beginning of the accident, the battery power supply circuit can be cut off in time to avoid the expansion and continuation of the vicious accident.
[0003] The existing power protection control device for electric vehicles can realize automatic circuit protection when the electric vehicle is in use, but it also has the following disadvantages: a large current is required to realize the switch opening, and the power supply is generally cut off at 63-100A, and it is usually impossible to achieve the power off for micro current; the existing power protection control device for electric vehicles can only realize the switch opening and power off when the set threshold is reached, and it is impossible to manually control the power off. When an unexpected danger occurs, the switch cannot be operated in time to cut off the battery output circuit; the existing power protection control device for electric vehicles cannot set other instructions at the same time to cut off the power supply under the instructions, such as cutting off the battery output circuit under various fault conditions, cutting off the battery output circuit when the battery catches fire, etc. Utility Model Content
[0004] In view of the above-mentioned defects, the purpose of the utility model is to provide an electronic power protection control switch and an electric vehicle, which can achieve tripping with a micro-current and can accept external signal control instructions to make the switch easier to control, and the power supply can be manually shut off.
[0005] In order to achieve the above object, the utility model provides an electronic power protection control switch, including a control module, the control module is connected to a remote control module, a rated overcurrent automatic trigger module and a manual switch module. The remote control module is used to connect to a carrier interface, receive control instructions and return information.
[0006] Preferably, the remote control module includes an inductor L1, the inductor L1 is connected to a wiring terminal P1A, the wiring terminal P1A is connected to a wiring terminal P1B, pin 2 of the wiring terminal P1B is connected to a DC power supply, and pin 2 of the wiring terminal P1B is also connected to a voltage sampling unit via a resistor R3; pin 2 of the wiring terminal P1B is also grounded via a parallel resistor R4 and a capacitor C1;
[0007] Pin 1 of the connection terminal P1B is connected to pin 2 of the connection terminal P1B via a diode; pin 1 of the connection terminal P1B is also connected to a field effect transistor via a resistor R1, the field effect transistor is grounded, and the field effect transistor is also connected to resistor R1 via a resistor R2.
[0008] Furthermore, the field effect transistor is also connected to chip U1, chip U1 is also grounded, chip U1 is also connected to pin 1 of chip U2, chip U1 is also connected to power supply VDD, diode D1, voltage regulator diode D2, amplifier Q2, and resistor R8 via resistor R5, diode D1 is also connected to pin 2 of chip U2, voltage regulator diode D2 is also grounded, amplifier Q2 is also grounded, amplifier Q2 is also connected to pin 7 of chip U2 via resistor R7, resistor R8 is also connected to pin 2 of socket P3, and pin 1 of socket P3 is grounded.
[0009] Furthermore, pin 3 of chip U2 is grounded via resistor R9 and diode D3, pin 4 of chip U2 is connected to pin 2 of chip U2 via capacitors C2 and C3 in parallel, and pin 4 of chip U2 is also grounded; pin 5 of chip U2 is connected to pin 2 of socket P2, pin 6 of chip U2 is connected to pin 3 of socket P2, pin 1 of socket P2 is grounded, pin 4 of socket P2 is connected to power supply VDD, and pin 7 of chip U2 is grounded via resistor R6.
[0010] Furthermore, the rated overcurrent automatic triggering module includes an inductor L2.
[0011] Furthermore, the manual switch module is connected to a trigger handle.
[0012] Furthermore, the present application also provides an electric vehicle, which includes the electronic power protection control switch.
[0013] Furthermore, the electric vehicle is an electric bicycle, an electric motorcycle, or an electric tricycle.
[0014] The utility model detects the discharge current in real time during use, and automatically turns off the main power switch when the current exceeds the set limit; it can accept external signal control instructions (such as those issued by BMS) to turn off the electronic power switch of the electric vehicle; it can trip when there is a micro current, and can accept external signal control instructions, making the switch easier to control, and the power can be turned off manually. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a structural block diagram of the electronic power protection control switch of the utility model;
[0016] Figure 2 This is the circuit diagram of the remote control module;
[0017] Figure 3 It is the circuit diagram of the rated overcurrent automatic trigger module. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.
[0019] Example 1
[0020] See also Figure 1 The utility model provides an electronic power protection control switch, comprising a control module, wherein the control module is connected with a remote control module, a rated overcurrent automatic trigger module and a manual switch module.
[0021] The remote control module is used to connect to the carrier interface, receive control instructions and return information. The control instructions come from outside the control module.
[0022] See also Figure 2 The remote control module includes an inductor L1, the inductor L1 is connected to a terminal P1A, the terminal P1A is connected to a terminal P1B, pin 2 of the terminal P1B is connected to a DC power supply (24V-100V), and pin 2 of the terminal P1B is also connected to a voltage sampling unit via a resistor R3; pin 2 of the terminal P1B is also grounded via a parallel resistor R4 and a capacitor C1.
[0023] Pin 1 of the connection terminal P1B is connected to pin 2 of the connection terminal P1B via a diode; pin 1 of the connection terminal P1B is also connected to a field effect transistor via a resistor R1, the field effect transistor is grounded, and the field effect transistor is also connected to resistor R1 via a resistor R2.
[0024] The field effect transistor is also connected to chip U1, chip U1 is also grounded, chip U1 is also connected to pin 1 of chip U2, chip U1 is also connected to power supply VDD, diode D1, voltage regulator diode D2, amplifier Q2, and resistor R8 through resistor R5, diode D1 is also connected to pin 2 of chip U2, voltage regulator diode D2 is also grounded, amplifier Q2 is also grounded, amplifier Q2 is also connected to pin 7 of chip U2 through resistor R7, resistor R8 is also connected to pin 2 of socket P3, and pin 1 of socket P3 is grounded.
[0025] Pin 3 of chip U2 is grounded via resistor R9 and diode D3, pin 4 of chip U2 is connected to pin 2 of chip U2 via capacitors C2 and C3 in parallel, and pin 4 of chip U2 is also grounded; pin 5 of chip U2 is connected to pin 2 of socket P2, pin 6 of chip U2 is connected to pin 3 of socket P2, pin 1 of socket P2 is grounded, pin 4 of socket P2 is connected to power supply VDD, and pin 7 of chip U2 is grounded via resistor R6.
[0026] In the remote control module, the inductor L1 is connected to the module circuit by the connection terminals P1A and P1B. The module circuit includes a chip U1 and a chip U2. The module circuit is connected to the external control component via the socket P2. The external control component can remotely measure the connection signal and the connection voltage after the communication verification and recognition instruction, and can also disconnect the module circuit through the instruction control. After the voltage sampling unit performs voltage sampling, the voltage information and the on-off status are returned after the AD conversion operation inside the chip U2. The chip U2 receives the shutdown instruction, drives the inductor L1 through the optical isolation of the chip U1, drives the mechanical magnetic core to translate the trigger switch hook to disengage, and realizes the switch disconnection line.
[0027] Chip U1 is the optocoupler EL3H7, and chip U2 is the microcontroller STC8G1K08.
[0028] See also Figure 3 The rated overcurrent automatic trigger module includes an inductor L2.
[0029] When the line current discharge exceeds the designed rated current value, it will also drive the mechanical magnetic core to translate and trigger the switch hook to unhook, so that the switch can disconnect the line.
[0030] The manual switch module is connected with a toggle handle, which can close and disconnect the circuit. When the remote control module and the rated overcurrent automatic trigger module disconnect the protection, the connection cannot be automatically restored. The exposed handle of the switch needs to be manually pulled to close to restore the circuit.
[0031] Example 2
[0032] The utility model also provides an electric vehicle, comprising the electronic power protection control switch in the above embodiment.
[0033] The electric vehicle is preferably an electric bicycle, an electric motorcycle, an electric tricycle or the like.
[0034] The electronic power protection control switch of the utility model can detect the discharge current in real time during use, and automatically shut down the main power switch when the current exceeds the set limit. At the same time, it can accept external signal control instructions (such as control instructions issued by BMS) to shut down the power switch of the electric vehicle.
[0035] The utility model detects the discharge current in real time during use, and automatically turns off the main power switch when the current exceeds the set limit; it can accept external signal control instructions (such as those issued by BMS) to turn off the electronic power switch of the electric vehicle; it can trip when there is a micro current, and can accept external signal control instructions, making the switch easier to control, and the power can be turned off manually.
[0036] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.
Claims
1. An electronic power protection control switch, characterized in that: It includes a control module, the control module is connected to a remote control module, a rated overcurrent automatic trigger module and a manual switch module, and the remote control module is used to connect to a carrier interface, receive control instructions and return information; The remote control module includes an inductor L1, the inductor L1 is connected to a terminal P1A, the terminal P1A is connected to a terminal P1B, a pin 2 of the terminal P1B is connected to a DC power supply, and a pin 2 of the terminal P1B is also connected to a voltage sampling unit via a resistor R3; a pin 2 of the terminal P1B is also grounded via a resistor R4 and a capacitor C1 connected in parallel; Pin 1 of the connection terminal P1B is connected to pin 2 of the connection terminal P1B via a diode; pin 1 of the connection terminal P1B is also connected to a field effect transistor via a resistor R1, the field effect transistor is grounded, and the field effect transistor is also connected to resistor R1 via a resistor R2.
2. An electronic power protection control switch according to claim 1, characterized in that: The field effect transistor is also connected to chip U1, chip U1 is also grounded, chip U1 is also connected to pin 1 of chip U2, chip U1 is also connected to power supply VDD, diode D1, voltage regulator diode D2, amplifier Q2, and resistor R8 through resistor R5, diode D1 is also connected to pin 2 of chip U2, voltage regulator diode D2 is also grounded, amplifier Q2 is also grounded, amplifier Q2 is also connected to pin 7 of chip U2 through resistor R7, resistor R8 is also connected to pin 2 of socket P3, and pin 1 of socket P3 is grounded.
3. An electronic power protection control switch according to claim 2, characterized in that: Pin 3 of chip U2 is grounded via resistor R9 and diode D3, pin 4 of chip U2 is connected to pin 2 of chip U2 via capacitors C2 and C3 in parallel, and pin 4 of chip U2 is also grounded; pin 5 of chip U2 is connected to pin 2 of socket P2, pin 6 of chip U2 is connected to pin 3 of socket P2, pin 1 of socket P2 is grounded, pin 4 of socket P2 is connected to power supply VDD, and pin 7 of chip U2 is grounded via resistor R6.
4. An electronic power protection control switch according to claim 3, characterized in that: Chip U1 is the optocoupler EL3H7, and chip U2 is the microcontroller STC8G1K08.
5. The electronic power protection control switch according to claim 1, characterized in that: The rated overcurrent automatic trigger module includes an inductor L2.
6. An electronic power protection control switch according to claim 1, characterized in that: The manual switch module is connected with a trigger handle.
7. An electric vehicle, characterized in that: The electronic power protection control switch comprises any one of claims 1 to 6.
8. An electric vehicle according to claim 7, characterized in that: The electric vehicle is an electric bicycle, an electric motorcycle or an electric tricycle.