Vehicle emergency power supply device, vehicle door power supply system and vehicle

Abstract

The utility model belongs to the technical field of vehicle power supplies, and particularly relates to a vehicle emergency power connection device, a vehicle door power supply system and a vehicle, the vehicle emergency power connection device comprises a power battery, a DCDC converter, a super capacitor control module and an emergency power connection interface, the power battery supplies power to the super-capacitor control module through the DCDC converter, the super-capacitor control module is connected with the emergency power connection interface, and the super-capacitor control module supplies power to the emergency power connection interface during emergency power connection. According to the utility model, the trouble that external power connection equipment is inconvenient to carry and complex to operate can be eliminated.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle power technology, specifically relating to a vehicle emergency jump-start device, a door power supply system, and a vehicle. Background Technology

[0002] With the rapid development of electric vehicle technology, the level of vehicle intelligence is increasing, bringing numerous conveniences and new driving experiences to people's travel. However, the current electric vehicles generally use a single lead-acid or lithium-ion battery for power supply, and this traditional power supply architecture is gradually revealing some problems when dealing with complex usage scenarios.

[0003] One prominent issue is that the low-voltage battery is prone to depletion after a vehicle has been parked for an extended period. The low-voltage battery plays a crucial role in powering numerous low-voltage electrical devices in electric vehicles, such as the door lock control system. If the low-voltage battery is depleted, the door locks may malfunction, preventing the doors from opening. This situation causes significant inconvenience for users, especially if they have forgotten their mechanical key. The inability to unlock all the doors in an emergency leaves the user trapped outside the vehicle, unable to use it normally.

[0004] To address the issue of car doors being unable to open due to a low-voltage battery drain, the conventional method of jump-starting requires external equipment, such as jumper cables or other vehicles with available power or dedicated jumper sources. However, traditional jump-starting methods have several drawbacks. First, carrying external equipment is extremely inconvenient, requiring users to constantly carry jumper cables and other equipment, increasing their travel burden. Second, the jump-starting process is relatively complex, requiring ordinary users to possess certain professional knowledge and operational skills; otherwise, operational errors can easily occur, leading to jump-start failure or even damage to the vehicle's electrical equipment. Furthermore, traditional jump-starting methods pose safety hazards. Improper operation during the process may cause short circuits, sparks, and other dangerous situations, threatening personal and vehicle safety.

[0005] Therefore, it is necessary to develop a new vehicle emergency jump-start device, a door power supply system, and a vehicle. Utility Model Content

[0006] The purpose of this utility model is to provide a vehicle emergency jump-start device, a door power supply system, and a vehicle, so as to eliminate the inconvenience of carrying and the complexity of operating external jump-start equipment.

[0007] In a first aspect, the present invention provides a vehicle emergency jump-start device, comprising a power battery, a DC-DC converter, a supercapacitor control module, and an emergency jump-start interface. The DC-DC converter is connected to both the power battery and the supercapacitor control module. The power battery supplies power to the supercapacitor control module through the DC-DC converter. The supercapacitor control module is connected to the emergency jump-start interface, and the supercapacitor control module supplies power to the emergency jump-start interface during an emergency jump-start.

[0008] Optionally, the supercapacitor control module includes a Zener diode, a control switch, and a supercapacitor bank. The positive terminal of the Zener diode is connected to the DC-DC converter, and the negative terminal is connected to one end of the supercapacitor bank. The other end of the supercapacitor bank is grounded. The connection point between the Zener diode and the supercapacitor bank is also connected to an emergency jump-start interface via the control switch. The Zener diode provides unidirectional current to the supercapacitor bank, ensuring that current flows only from the DC-DC converter to the supercapacitor bank, preventing reverse discharge, protecting circuit components, and ensuring normal charging and energy storage of the supercapacitor bank. In case of emergency jump-start, the closed control switch outputs the stored energy in the supercapacitor bank through the emergency jump-start interface to provide emergency power support for the vehicle load.

[0009] Optionally, the supercapacitor control module further includes a light-emitting diode (LED) and a current-limiting resistor. The negative terminal of the LED is grounded, and the positive terminal of the LED is connected to the connection point of the control switch and the emergency jump-start interface via the current-limiting resistor. The LED serves as a switch indicator; when the control switch is closed and the supercapacitor bank supplies power to the emergency jump-start interface, the LED illuminates, visually indicating to the operator that the control switch is operational, allowing the user to easily understand the operating status of the vehicle's emergency jump-start device. The current-limiting resistor limits the current passing through the LED, preventing excessive current from damaging it, ensuring its normal operation, extending its lifespan, and ensuring the safety and stability of the entire circuit.

[0010] Optionally, the supercapacitor bank includes multiple supercapacitors connected in series. Connecting multiple supercapacitors in series can increase the total voltage of the supercapacitor bank, meeting the higher voltage requirements of the vehicle load during emergency power jump-starting.

[0011] Secondly, the vehicle door power supply system described in this utility model includes a low-voltage battery, a power battery, a DC-DC converter, a supercapacitor control module, and an emergency jump-start interface. The DC-DC converter is connected to the low-voltage battery, the power battery, and the supercapacitor control module respectively. The power battery supplies power to the low-voltage battery and the supercapacitor control module through the DC-DC converter.

[0012] The output terminal of the low-voltage battery is connected to the vehicle domain controller.

[0013] The supercapacitor control module is connected to the vehicle domain controller via an emergency jump-start interface, and the supercapacitor control module supplies power to the emergency jump-start interface during emergency jump-starts.

[0014] Optionally, the supercapacitor control module includes a Zener diode, a control switch, and a supercapacitor bank. The positive terminal of the Zener diode is connected to the DC-DC converter, and the negative terminal is connected to one end of the supercapacitor bank. The other end of the supercapacitor bank is grounded. The connection point between the Zener diode and the supercapacitor bank is also connected to an emergency jump-start interface via the control switch. The Zener diode provides unidirectional current to the supercapacitor bank, ensuring that current flows only from the DC-DC converter to the supercapacitor bank, preventing reverse discharge, protecting circuit components, and ensuring normal charging and energy storage of the supercapacitor bank. In case of an emergency jump-start, the control switch closes, and the energy stored in the supercapacitor bank is output through the emergency jump-start interface to provide emergency power support to the vehicle domain controller. This ensures that in the event of a low-voltage battery malfunction, the supercapacitor bank can serve as a backup power source to provide power to the vehicle domain controller, guaranteeing the normal operation of door-related functions and enhancing the emergency handling capability of the door power supply system.

[0015] Optionally, the supercapacitor control module further includes a light-emitting diode (LED) and a current-limiting resistor. The negative terminal of the LED is grounded, and the positive terminal of the LED is connected to the connection point of the control switch and the emergency jump-start interface via the current-limiting resistor. In the door power supply system, the combination of the LED and the current-limiting resistor serves as both a switch indicator and a current limiter. When the supercapacitor control module supplies power to the emergency jump-start interface, the LED illuminates, visually indicating to the operator that the emergency power supply system has been activated, allowing the user to understand the system status. The current-limiting resistor protects the LED from damage caused by excessive current, ensuring the safety and reliability of the entire door power supply system.

[0016] Optionally, the control switch is installed inside the trailer hitch cover. Installing the control switch inside the trailer hitch cover allows operators to easily open the cover and directly operate the control switch when an emergency jump-start is needed, without requiring additional tools or complicated procedures, thus improving the convenience of emergency operations. The control switch's location inside the trailer hitch cover also helps prevent accidental operation to some extent.

[0017] Thirdly, the vehicle described in this utility model includes the vehicle emergency jump-start device as described in this utility model.

[0018] Fourthly, the vehicle described in this utility model includes the door power supply system as described in this utility model.

[0019] The beneficial effects of this utility model are:

[0020] (1) This utility model, through innovative design, adopts a mode in which the power battery supplies power to the low-voltage battery and the supercapacitor control module via a DC-DC converter, thus constructing a multi-power reserve system. Under normal circumstances, the low-voltage battery stably supplies power to the vehicle domain controller, ensuring the normal electronic functions of low-voltage electrical equipment such as vehicle doors, such as the precise control of door locks, providing users with a convenient travel experience. When the low-voltage battery is depleted or in other abnormal situations, the supercapacitor control module quickly plays an emergency role, providing emergency power to the vehicle domain controller through the emergency jump-start interface. This utility model fundamentally solves the dilemma faced by users when the vehicle is depleted, eliminating the need to search for mechanical keys or jump-start equipment. Users can unlock the doors with just one click, truly achieving efficient and convenient door opening anytime, anywhere, greatly improving user convenience and satisfaction.

[0021] (2) The supercapacitor control module of this utility model consists of only a few basic components such as supercapacitor banks, resistors, diodes and switches. It has a simple structure and does not require complex circuit design or expensive components. This not only reduces the manufacturing cost of the supercapacitor control module and reduces the process difficulty and cost investment in the production process, but also improves the reliability and stability of supercapacitor control. Attached Figure Description

[0022] Figure 1 This is a schematic block diagram of the vehicle emergency jump-start device described in Embodiment 1 of this application;

[0023] Figure 2 This is a schematic block diagram of the door power supply system described in Embodiment 2 of this application;

[0024] In the diagram: 1-Low-voltage battery, 2-Power battery, 3-DC-CDC converter, 4-Supercapacitor control module, 41-Zenith diode, 42-Control switch, 43-Supercapacitor bank, 44-Light emitting diode, 45-Current limiting resistor, 5-Emergency jump start interface, 6-Bluetooth module, 7-Outward door handle, 8-Body domain controller. Detailed Implementation

[0025] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0026] Example 1

[0027] like Figure 1 As shown in the embodiment of this application, a vehicle emergency jump-start device includes a power battery 2, a DC-DC converter 3, a supercapacitor control module 4, and an emergency jump-start interface 5. The DC-DC converter 3 is connected to the power battery 2 and the supercapacitor control module 4 respectively. The power battery 2 supplies power to the supercapacitor control module 4 through the DC-DC converter 3. The supercapacitor control module 4 is connected to the emergency jump-start interface 5. The supercapacitor control module 4 supplies power to the emergency jump-start interface 5 during emergency jump-start.

[0028] like Figure 2 As shown, in one possible embodiment, the supercapacitor control module 4 includes a Zener diode 41, a control switch 42, and a supercapacitor bank 43. The positive terminal of the Zener diode 41 is connected to the DC-DC converter 3, and the negative terminal of the Zener diode 41 is connected to one end of the supercapacitor bank 43. The other end of the supercapacitor bank 43 is grounded. The connection point between the Zener diode 41 and the supercapacitor bank 43 is also connected to the emergency jump-start interface 5 via the control switch 42. The Zener diode 41 provides unidirectional current to the supercapacitor bank 43, ensuring that current can only flow from the DC-DC converter 3 to the supercapacitor bank 43, preventing reverse discharge of the supercapacitor bank 43, protecting circuit components, and ensuring normal charging and energy storage of the supercapacitor bank 43. In case of emergency jump-start, the closing of the control switch 42 allows the electrical energy stored in the supercapacitor bank 43 to be output through the emergency jump-start interface 5, providing emergency power support for the vehicle load.

[0029] like Figure 2 As shown, in one possible embodiment, the supercapacitor control module 4 further includes a light-emitting diode (LED) 44 and a current-limiting resistor 45. The negative terminal of the LED 44 is grounded, and the positive terminal of the LED 44 is connected to the connection point of the control switch 42 and the emergency jump-start interface 5 via the current-limiting resistor 45. The LED 44 serves as a switch indicator light; when the control switch 42 is closed and the supercapacitor group 43 supplies power to the emergency jump-start interface 5, the LED 44 illuminates, visually indicating to the operator that the control switch 42 is in operation, allowing the user to easily understand the operating status of the vehicle's emergency jump-start device. The current-limiting resistor 45 limits the current passing through the LED 44, preventing excessive current from damaging the LED 44, ensuring its normal operation, extending its service life, and simultaneously ensuring the safety and stability of the entire circuit.

[0030] like Figure 2 As shown, in one possible embodiment, the supercapacitor bank 43 includes multiple supercapacitors connected in series, such as six 2.7V / 3000F supercapacitors connected in series. Connecting multiple supercapacitors in series can increase the total voltage of the supercapacitor bank 43, meeting the higher voltage requirements of the vehicle load during emergency jump-starting.

[0031] In this application embodiment, a vehicle includes a vehicle emergency jump-start device as described in this application embodiment.

[0032] Example 2

[0033] like Figure 2 As shown in this embodiment, a vehicle door power supply system includes a low-voltage battery 1, a power battery 2, a DC-DC converter 3, a supercapacitor control module 4, and an emergency jump-start interface 5. The DC-DC converter 3 is connected to the low-voltage battery 1, the power battery 2, and the supercapacitor control module 4, respectively. The power battery 2 supplies power to the low-voltage battery 1 and the supercapacitor control module 4 through the DC-DC converter 3. The output terminal of the low-voltage battery 1 is connected to the vehicle domain controller 8 to supply power to the vehicle domain controller 8. The supercapacitor control module 4 is connected to the vehicle domain controller 8 through the emergency jump-start interface 5, and supplies power to the emergency jump-start interface 5 during emergency jump-start operations.

[0034] like Figure 2 As shown, in one possible embodiment, the supercapacitor control module 4 includes a Zener diode 41, a control switch 42, and a supercapacitor bank 43. The anode of the Zener diode 41 is connected to the DC-DC converter 3, and the cathode of the Zener diode 41 is connected to one end of the supercapacitor bank 43. The other end of the supercapacitor bank 43 is grounded. The connection point between the Zener diode 41 and the supercapacitor bank 43 is also connected to the emergency jump-start interface 5 via the control switch 42. The Zener diode 41 provides unidirectional current to the supercapacitor bank 43, ensuring that current can only flow from the DC-DC converter 3 to the supercapacitor bank 43, preventing reverse discharge of the supercapacitor bank 43, protecting circuit components, and ensuring normal charging and energy storage of the supercapacitor bank 43. In the event of an emergency jump start, by closing the control switch 42, the electrical energy stored in the supercapacitor bank 43 is output through the emergency jump start interface 5 to provide emergency power support to the vehicle domain controller 8. This ensures that when the low-voltage battery 1 malfunctions, the supercapacitor bank 43 can serve as a backup power source to provide power to the vehicle domain controller 8, ensuring the normal operation of door-related functions and enhancing the emergency handling capability of the door power supply system.

[0035] like Figure 2As shown, in one possible embodiment, the supercapacitor control module 4 further includes a light-emitting diode (LED) 44 and a current-limiting resistor 45. The negative terminal of the LED 44 is grounded, and the positive terminal of the LED 44 is connected to the connection point of the control switch 42 and the emergency jump-start interface 5 via the current-limiting resistor 45. In the door power supply system, the combination of the LED 44 and the current-limiting resistor 45 serves as a switch indicator and current limiter. When the supercapacitor control module 4 supplies power to the emergency jump-start interface 5, the LED 44 lights up, visually indicating to the operator that the emergency power supply system has been activated, allowing the user to understand the system status; the current-limiting resistor 45 protects the LED 44 from damage by excessive current, ensuring the safety and reliability of the entire door power supply system.

[0036] like Figure 2 As shown, in one possible embodiment, the vehicle domain controller 8 is connected to the Bluetooth module 6. After the Bluetooth module 6 receives the unlock command, the vehicle domain controller 8 controls the external door handle 7 to unlock.

[0037] like Figure 2 As shown, when the user presses the unlock button on the car key, if the vehicle powers on normally, the power battery 2 charges the supercapacitor control module 4 through the DC-DC converter 3, and charges the supercapacitor bank 43 in a constant voltage and current-limited manner (charging efficiency ≥95%). If the vehicle cannot power on normally, the low-voltage battery 1 may be depleted. In this case, the control switch 42 needs to be pressed. When the control switch 42 is pressed, the LED 44 lights up. Then, the unlock button on the car key is pressed, and the external door handle 7 unlocks, allowing the door to be opened. After opening the door, the control switch 42 is disconnected.

[0038] like Figure 2 As shown, in one possible embodiment, the control switch 42 is installed inside the trailer hitch cover. When the vehicle needs emergency jump-starting, the operator can easily open the trailer hitch cover and directly operate the control switch 42 without additional tools or complicated operating procedures, thus improving the convenience of emergency operations. Furthermore, installing the control switch 42 inside the trailer hitch cover can, to some extent, prevent accidental operation.

[0039] In this application embodiment, a vehicle includes a door power supply system as described in this application embodiment.

[0040] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A vehicle emergency jump starting apparatus, comprising: It includes a power battery (2), a DC-DC converter (3), a supercapacitor control module (4), and an emergency jump start interface (5). The DC-DC converter (3) is connected to the power battery (2) and the supercapacitor control module (4) respectively. The power battery (2) supplies power to the supercapacitor control module (4) through the DC-DC converter (3). The supercapacitor control module (4) is connected to the emergency jump start interface (5). The supercapacitor control module (4) supplies power to the emergency jump start interface (5) during emergency jump start.

2. The vehicle jump starting apparatus of claim 1, wherein The supercapacitor control module (4) includes a Zener diode (41), a control switch (42), and a supercapacitor bank (43). The positive terminal of the Zener diode (41) is connected to the DC-DC converter (3), the negative terminal of the Zener diode (41) is connected to one end of the supercapacitor bank (43), and the other end of the supercapacitor bank (43) is grounded. The connection point of the Zener diode (41) and the supercapacitor bank (43) is also connected to the emergency jump-start interface (5) via the control switch (42).

3. The vehicle jump starting device of claim 2, wherein, The supercapacitor control module (4) also includes a light-emitting diode (44) and a current-limiting resistor (45). The negative terminal of the light-emitting diode (44) is grounded, and the positive terminal of the light-emitting diode (44) is connected to the connection point of the control switch (42) and the emergency jump-start interface (5) via the current-limiting resistor (45).

4. The vehicle jump starting device of claim 2, wherein, The supercapacitor bank (43) comprises multiple supercapacitors connected in series.

5. A vehicle door power supply system characterized by comprising: It includes a low-voltage battery (1), a power battery (2), a DC-DC converter (3), a supercapacitor control module (4), and an emergency jump-start interface (5). The DC-DC converter (3) is connected to the low-voltage battery (1), the power battery (2), and the supercapacitor control module (4) respectively. The power battery (2) supplies power to the low-voltage battery (1) and the supercapacitor control module (4) through the DC-DC converter (3). The output terminal of the low-voltage battery (1) is connected to the vehicle domain controller (8); The supercapacitor control module (4) is connected to the vehicle domain controller (8) through the emergency jump-start interface (5), and the supercapacitor control module (4) supplies power to the emergency jump-start interface (5) during emergency jump-start.

6. The vehicle door power supply system of claim 5, wherein The supercapacitor control module (4) includes a Zener diode (41), a control switch (42), and a supercapacitor group (43). The positive terminal of the Zener diode (41) is connected to the DC-DC converter (3), the negative terminal of the Zener diode (41) is connected to one end of the supercapacitor group (43), and the other end of the supercapacitor group (43) is grounded. The connection point of the Zener diode (41) and the supercapacitor group (43) is also connected to the emergency jump-start interface (5) via the control switch (42).

7. The vehicle door power supply system of claim 6, wherein The supercapacitor control module (4) also includes a light-emitting diode (44) and a current-limiting resistor (45). The negative terminal of the light-emitting diode (44) is grounded, and the positive terminal of the light-emitting diode (44) is connected to the connection point of the control switch (42) and the emergency jump-start interface (5) via the current-limiting resistor (45).

8. The vehicle door power supply system of claim 6, wherein The control switch (42) is installed on the inner side of the trailer hole cover.

9. A vehicle characterized by comprising: The vehicle emergency power supply device comprises the vehicle emergency power supply device according to any one of claims 1 to 4.

10. A vehicle characterized by comprising: The vehicle door power supply system comprises the vehicle door power supply system according to any one of claims 5 to 8.

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