Vehicle power pickup device and vehicle

Abstract

This utility model belongs to the field of vehicle emergency starting technology, specifically relating to a vehicle jump-start device and a vehicle, comprising: a housing with an integrated device connector for connecting to a vehicle wiring harness connector; a top cover that mates with the housing; a battery pack comprising one or more batteries connected together, the battery pack being disposed within the housing; a circuit board assembly disposed within the housing, the circuit board assembly being connected to the battery pack and the device connector, and detecting whether the voltage output by the battery pack meets preset requirements; a control switch fixed on the circuit board assembly, which, when the control switch is in the ON state and the circuit board assembly detects that the voltage output by the battery pack meets preset requirements, inputs the battery pack output voltage to the vehicle wiring harness connector via the device connector; and a button mounted on the top cover, controlling the on / off state of the control switch. This utility model has the advantages of convenient and safe jump-starting.

Description

Technical Field

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

[0002] A dead car battery is a common and troublesome problem in people's daily travel and vehicle use. When the car battery is dead, users often encounter the predicament of electronic unlocking methods such as smart keys or Bluetooth failing, making it impossible to open the car door and start the vehicle, which causes great inconvenience to users' travel.

[0003] Currently, there are two main traditional methods for jump-starting a vehicle. One method involves using the battery of another working vehicle, connecting its positive and negative terminals to the battery of the dead vehicle using jumper cables. The other method uses a dedicated onboard emergency power supply, also connected to the dead vehicle's battery using jumper cables. However, both of these traditional jump-start methods have several significant problems.

[0004] 1. Poor portability

[0005] With the continuous development of automotive technology, most cars today are equipped with smart keys, and these keys are evolving towards miniaturization and lightweight designs. Due to technological limitations, mechanical key chips are difficult to integrate perfectly with smart keys, and are therefore usually designed as separate components. This design makes it difficult for users to carry the mechanical key chip with them in daily use, and it is easy to lose it. If the vehicle loses power, the user cannot quickly jump-start the vehicle because they cannot obtain the mechanical key chip in time, preventing the problem from being resolved promptly.

[0006] 2. Low convenience

[0007] Traditional car jump-starting methods heavily rely on external power sources. When a car runs out of power in remote areas or while traveling, if there are no other vehicles nearby to jump-start it, and the user is not carrying emergency equipment such as a jump starter, the vehicle will not be able to get power in time, leaving the user stranded and unable to start the vehicle and continue their journey.

[0008] 3. Complex operation

[0009] Traditional jump-start procedures are relatively cumbersome and require specific conditions and personnel. Ordinary users often lack professional guidance, making them prone to various problems due to improper operation. For example, when connecting jumper wires, the positive and negative terminals may be connected incorrectly, or the connection may be loose. These errors not only fail to achieve the jump-start goal but may also cause further damage to the vehicle.

[0010] 4. Poor security

[0011] In traditional jump-starting operations, improper user operation can easily lead to reversed positive and negative terminals, short circuits, or electric arcing. These situations can cause battery explosions, posing a serious threat to the personal safety of the operator; they can also damage onboard electronic equipment, resulting in significant financial losses for the user.

[0012] Therefore, it is necessary to develop a new vehicle jump-start device and vehicle. Utility Model Content

[0013] The purpose of this utility model is to provide a convenient and safe vehicle jump-start device and vehicle.

[0014] In a first aspect, the vehicle jump-start device of this utility model includes:

[0015] A housing having an integrated device end connector for connection to a vehicle wiring harness end connector;

[0016] The top cover is fitted and connected to the housing.

[0017] A battery pack comprising one or more batteries connected together, the battery pack being disposed within the housing;

[0018] A circuit board assembly is disposed inside the housing. The circuit board assembly is connected to the battery pack and the device end connector respectively. The circuit board assembly is used to detect whether the voltage output by the battery pack meets the preset requirements.

[0019] A control switch is fixed on the circuit board assembly. When the control switch is in the on state and the circuit board assembly detects that the voltage output by the battery pack meets the preset requirements, the output voltage of the battery pack is input to the vehicle wiring harness connector via the device end connector.

[0020] A button is installed on the upper cover, and the control switch is turned on or off by the button.

[0021] Optionally, the circuit board assembly includes a PCB board and a control circuit disposed on the PCB board, the control circuit including:

[0022] A filtering circuit is used to filter the voltage output by the battery pack, and the filtering circuit is connected to the battery pack.

[0023] A voltage detection circuit is used to detect whether the voltage across each battery is greater than or equal to the starting voltage. The voltage detection circuit is connected to the battery pack.

[0024] A power supply circuit is used to convert the voltage output by the battery pack into the operating voltage required by the MCU. The power supply circuit is connected to the filter circuit.

[0025] The MCU is used to control the operation of the entire vehicle jump-start system. The MCU is connected to both the voltage detection circuit and the power supply circuit.

[0026] The control switches are connected to the MCU, the filter circuit, and the device connector, respectively. The filter circuit filters the battery pack output voltage, improving voltage quality and reducing interference; the voltage detection circuit monitors the battery voltage in real time, ensuring that jump-start operation is only performed when the voltage meets the startup requirements, thus improving the safety and success rate of jump-starting; the power supply circuit converts the battery pack output voltage into the voltage required by the MCU, ensuring the normal operation of the MCU; the MCU, as the control core, coordinates the work of each part, realizing intelligent control of the device.

[0027] Optionally, the control circuit further includes a reverse connection protection circuit. This circuit comprises diodes of the same number as the number of batteries. The positive terminals of each battery are connected to the positive terminals of the diodes in a one-to-one correspondence, and the negative terminals of the diodes are connected to a filter circuit and a voltage detection circuit, respectively. The reverse connection protection circuit, through the unidirectional conductivity of the diodes, prevents reverse connection when the battery pack is connected to the circuit board assembly, avoiding circuit damage and safety accidents caused by reverse connection, and improving the reliability and safety of the device.

[0028] Optionally, indicator lights may also be included;

[0029] The control circuit also includes an LED driver, which is connected to both the MCU and the indicator lights. The LED driver illuminates the green indicator light when the voltage detection circuit detects that the voltage across each battery is greater than or equal to the startup voltage; otherwise, it illuminates the red indicator light. The indicator lights and LED driver configuration provide users with intuitive status feedback. A green light indicates that the battery voltage meets the startup requirements and jump-starting is possible; a red light indicates that the battery voltage is insufficient and needs to be checked or replaced. This allows users to quickly understand the device's status and improves ease of use.

[0030] Optionally, the control switch is a self-locking micro switch;

[0031] The MCU starts timing after detecting that the device-side connector is connected to the vehicle wiring harness-side connector and that the control switch is closed. After the preset timing period, the MCU controls the control switch to disconnect. The use of a self-locking microswitch makes the operation of the control switch more convenient and reliable. The MCU's timing control function can automatically disconnect the power supply circuit after jump-starting, avoiding problems such as battery over-discharge and circuit overheating caused by prolonged jump-starting, extending the lifespan of the battery and device, and improving the device's safety and intelligence.

[0032] Optionally, the battery pack includes four 12V batteries connected in parallel. By using four 12V batteries in parallel, the battery pack's capacity is increased while maintaining a constant total voltage. This improves the battery pack's output current capability, providing a stronger starting current for the vehicle and increasing the success rate of jump-starting.

[0033] Optionally, the device-side connector is provided with a mis-connection protrusion. The mis-connection protrusion is located on the side of the device-side connector that mates with the vehicle wiring harness-side connector, and it matches a corresponding groove on the vehicle wiring harness-side connector. The matching of the mis-connection protrusion with the groove on the vehicle wiring harness-side connector further prevents reverse connection when the device-side connector and the vehicle wiring harness-side connector are connected, ensuring the safety of the jump-start operation from a mechanical structure perspective.

[0034] Optionally, the individual cells of the battery pack are connected in parallel via conductive plates, and the battery pack is also connected to the circuit board assembly via conductive plates. The use of conductive plates makes the parallel connection between the cells and the connection between the battery pack and the circuit board assembly more robust and reliable, reduces contact resistance, improves current transmission efficiency, and reduces energy loss.

[0035] Secondly, the vehicle described in this utility model employs a vehicle jump-start device as described in this utility model.

[0036] Optionally, the vehicle jump-start device is installed outside the vehicle. This allows users to conveniently use the jump-start device in different scenarios without having to open the vehicle interior, improving ease of use and flexibility. It also avoids the jump-start device occupying interior space.

[0037] The beneficial effects of this utility model are:

[0038] 1. Solve the problem of poor portability:

[0039] This invention uses a battery as the core power supply unit, making it small, lightweight, and easy to carry and store. Users can install it on the exterior of their vehicle for backup, avoiding the inconvenience caused by the difficulty of integrating traditional mechanical key blades into smart keys. Furthermore, this device does not rely on other vehicles or external emergency power sources, allowing users to use it at any time and solving the jump-start difficulties caused by the inability to obtain mechanical key blades or external power sources in a timely manner.

[0040] 2. Improve convenience:

[0041] This device operates independently of the vehicle's electrical system, allowing users to use it whenever needed without relying on the surrounding environment or assistance from others. Even if the vehicle runs out of power in remote areas or while traveling, users can start the vehicle themselves and continue their journey. Compared to traditional jump-start methods, this device eliminates the need to find other vehicles or jump-start devices; users simply connect it to achieve a jump start, significantly reducing emergency response time.

[0042] 3. Simplify the operation process:

[0043] This device has a simple structure and is easy to operate; ordinary users can complete the jump-start operation without professional guidance. Users only need to install the battery correctly, avoiding problems caused by improper operation in traditional jump-start methods. Through standardized design and clear labeling, this device reduces the risk of users connecting the wrong positive and negative terminals or making loose connections, thus improving the success rate of jump-starting.

[0044] 4. Enhanced security:

[0045] This device incorporates multiple safety protection measures, including a reverse connection protection diode and a voltage detection circuit, effectively preventing damage to the vehicle's electrical system and battery pack caused by improper operation or battery malfunctions during jump-starting. These safety protection measures prevent the risk of battery explosion due to reverse polarity, short circuits, or arcing, ensuring the safety of operators. The device's safety design also reduces the possibility of damage to onboard electronic equipment due to improper operation, minimizing financial losses for users.

[0046] 5. Reduce costs:

[0047] 12V batteries are relatively inexpensive and readily available, and the device has a simple structure that does not require complex manufacturing processes or expensive materials, further reducing the cost for users to equip themselves with emergency jump-start equipment.

[0048] In summary, this vehicle jump-start device solves the problems of traditional jump-start methods while providing a convenient, safe, and economical way to jump-start a vehicle, meeting users' emergency needs when their vehicle is out of power. Attached Figure Description

[0049] Figure 1This is a schematic diagram of the vehicle jump-start device described in the embodiments of this application;

[0050] Figure 2 This is a schematic diagram of the vehicle jump-start device and the vehicle wiring harness connector in the embodiments of this application;

[0051] Figure 3 This is a schematic block diagram of the circuit board assembly described in the embodiments of this application.

[0052] In the diagram: 1-Top cover, 2-Button, 3-Conductive sheet, 4-Fixing bracket, 5-Battery, 6-Circuit board assembly, 7-Indicator light, 8-Control switch, 9-Housing, 10-Device end connector, 101-Anti-error bump, 11-Vehicle wiring harness end connector, 111-Groove, 12-Filter circuit, 13-Voltage detection circuit, 14-Power supply circuit, 15-MCU, 16-LED driver, 17-Diode. Detailed Implementation

[0053] 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.

[0054] like Figure 1 As shown in this embodiment, a vehicle jump-start device includes a housing 9, a top cover 1, a battery pack, a circuit board assembly 6, a control switch 8, and a button 2. The housing 9 integrates a device-end connector 10, which connects to a vehicle wiring harness-end connector 11. The top cover 1 is connected to the housing 9 via a shaft hole and a snap-fit ​​mechanism, allowing for easy manual opening of the top cover 1 when the vehicle is out of power, offering the advantage of simple operation. The battery pack includes one or more batteries 5 connected together and is housed within the housing 9. The circuit board assembly 6 is housed within the housing 9 and is connected to both the battery pack and the device-end connector 10. The circuit board assembly 6 detects whether the battery pack output voltage meets preset requirements. The control switch 8 is fixed to the circuit board assembly 6. When the control switch 8 is in the ON state and the circuit board assembly 6 detects that the battery pack output voltage meets preset requirements, the battery pack output voltage is input to the vehicle wiring harness-end connector 11 via the device-end connector 10.

[0055] like Figure 1 As shown, button 2 is installed on the upper cover 1, and the control switch 8 is turned on and off by button 2.

[0056] like Figure 3 As shown, in one possible embodiment, the circuit board assembly 6 includes a PCB board and control circuitry arranged on the PCB board. The control circuitry includes a filter circuit 12, a voltage detection circuit 13, a power supply circuit 14, and an MCU 15. The filter circuit 12 is used to filter the voltage output from the battery pack and is connected to the battery pack. The voltage detection circuit 13 is used to detect whether the voltage across each battery 5 is greater than or equal to the starting voltage and is connected to the battery pack. The power supply circuit 14 is used to convert the voltage output from the battery pack into the operating voltage required by the MCU 15 and is connected to the filter circuit 12. The MCU 15 is used to control the entire vehicle jump-start operation and is connected to both the voltage detection circuit 13 and the power supply circuit 14. A control switch 8 is used to control the on / off state of the power supply circuit to the device-side connector 10 and is connected to the MCU 15, the filter circuit 12, and the control device-side connector 10. The filter circuit 12 filters the battery pack output voltage, improving voltage quality and reducing interference. Voltage detection circuit 13 monitors battery voltage in real time, ensuring that jump-start operation is only performed when the voltage meets the startup requirements, thus improving the safety and success rate of jump-starting. Power supply circuit 14 converts the voltage output from the battery pack into the voltage required by MCU 15, ensuring the normal operation of MCU 15. As the control core, MCU 15 coordinates the work of various parts, realizing intelligent control of the device.

[0057] like Figure 3 As shown, in one possible embodiment, the control circuit further includes a reverse connection protection circuit. This circuit includes diodes 17 in the same number as the number of batteries. The positive terminals of the batteries 5 are connected one-to-one with the positive terminals of the diodes 17, and the negative terminals of the diodes 17 are connected to the filter circuit 12 and the voltage detection circuit 13, respectively. The reverse connection protection circuit, through the unidirectional conductivity of the diodes 17, prevents reverse connection when the battery pack is connected to the circuit board assembly 6, avoiding circuit damage and safety accidents caused by reverse connection, and improving the reliability and safety of the device. If the battery pack includes four batteries 5 connected in parallel, the reverse connection protection circuit includes four diodes 17.

[0058] In one possible embodiment, a vehicle jump-start device further includes an indicator light 7. The control circuit also includes an LED driver 16, which is connected to both the MCU 15 and the indicator light 7. The LED driver 16 illuminates the green light of the indicator light 7 when the voltage detection circuit 13 detects that the voltage across each battery 5 is greater than or equal to the starting voltage; otherwise, it illuminates the red light. Before jump-starting, the positive and negative terminals of the battery 5 must be checked. If the terminals are installed correctly, the battery 5 needs to be replaced. The indicator light 7 and the LED driver 16 provide intuitive status feedback to the user. A green light indicates that the voltage of the battery 5 meets the starting requirements, and a jump-start operation can be performed; a red light indicates that the voltage of the battery 5 is insufficient, requiring inspection or replacement. This allows the user to promptly understand the device's status and improves ease of use.

[0059] In one possible embodiment, the control switch is a self-locking micro switch 8. The self-locking micro switch 8 is fixed to the circuit board assembly 6 by soldering. When the entire circuit meets the requirements, button 2 must be pressed to activate the self-locking micro switch 8, thus making the entire circuit conductive. The MCU 15 starts timing after detecting that the device-side connector 10 and the vehicle wiring harness-side connector 11 are connected and the control switch 8 is closed. After the preset timing time is reached, the MCU 15 controls the control switch 8 to disconnect. The use of the self-locking micro switch makes the operation of the control switch 8 more convenient and reliable. The timing control function of the MCU 15 can automatically disconnect the power supply circuit after jump-starting, avoiding problems such as battery over-discharge and circuit overheating caused by prolonged jump-starting, extending the lifespan of the battery 5 and the device, and improving the safety and intelligence of the device.

[0060] like Figure 1 As shown, in one possible embodiment, the battery pack includes four 12V batteries connected in parallel. By using four 12V batteries in parallel, the battery pack's capacity is increased while maintaining a constant total voltage. This improves the battery pack's output current capability, providing a stronger starting current for the vehicle and increasing the success rate of jump-starting.

[0061] like Figure 2 As shown, in one possible embodiment, the device-side connector 10 is provided with a mis-connection protrusion 101. The mis-connection protrusion 101 is located on the side where the device-side connector 10 mates with the vehicle wiring harness-side connector 11, and the shape of the mis-connection protrusion 101 matches the corresponding groove 111 on the vehicle wiring harness-side connector 11. The mis-connection protrusion 101 matches the groove 111 on the vehicle wiring harness-side connector 11, further preventing reverse connection when the device-side connector 10 and the vehicle wiring harness-side connector 11 are connected, thus ensuring the safety of the jump-start operation from a mechanical structure perspective.

[0062] like Figure 1 As shown, in one possible embodiment, a vehicle jump-start device further includes a mounting bracket 4, which matches a circuit board assembly 6. After the mounting bracket 4 is installed into the housing 9, a conductive sheet 3 is installed in a preset position on the mounting bracket 4, and the conductive sheet 3 is fixed to the mounting bracket 4 by welding. The conductive sheet 3 is used to connect the individual batteries 5 of the battery pack in parallel and to establish a connection between the battery pack and the circuit board assembly 6. The use of the conductive sheet 3 makes the parallel connection between the batteries 5 and the connection between the battery pack and the circuit board assembly 6 more robust and reliable, reduces contact resistance, improves current transmission efficiency, and reduces energy loss.

[0063] In this embodiment of the application, a method for using a vehicle jump-start device is as follows:

[0064] Installing the batteries: Open the top cover 1 of the jump starter for a vehicle with a dead battery, and insert the four batteries 5 into the housing 9 according to the positive and negative terminals.

[0065] Voltage detection: The voltage detection circuit 13 checks whether the voltage across each battery 5 is greater than or equal to the starting voltage. If yes, indicator light 7 displays green; if no, indicator light 7 displays red, indicating that the battery 5 is installed correctly.

[0066] Positive and negative terminal check: Determine whether the positive and negative terminals of battery 5 are installed correctly. If they are correct, replace battery 5 with a new one; if not, remove battery 5 and reinstall it correctly.

[0067] Operation button 2: When indicator light 7 shows green and the device end connector 10 and vehicle wiring harness end connector 11 are connected, press button 2 to make the entire circuit in a conductive state and provide power for jump-starting the vehicle.

[0068] Operation Start: After pressing button 2, start the vehicle with a dead battery using the smart key, mobile APP, or NFC card.

[0069] Vehicle Start-up: Attempt to start a vehicle with a dead battery. If successful, the process ends.

[0070] In this embodiment of the application, a vehicle employs a vehicle jump-start device as described in this embodiment of the application.

[0071] In one possible embodiment, the vehicle jump-start device is installed outside the vehicle. This allows users to conveniently use the jump-start device in different scenarios without having to open the vehicle interior, improving ease of use and flexibility. It also avoids the jump-start device occupying interior space.

[0072] 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 power-up device, characterized by comprising: include: The housing (9) has an integrated device end connector (10) for connecting to the vehicle wiring harness end connector (11). The upper cover (1) is connected to the housing (9); A battery pack comprising one or more batteries (5) connected together, the battery pack being disposed within the housing (9); The circuit board assembly (6) is disposed inside the housing (9). The circuit board assembly (6) is connected to the battery pack and the device end connector (10) respectively. The circuit board assembly (6) is used to detect whether the voltage output by the battery pack meets the preset requirements. The control switch (8) is fixed on the circuit board assembly (6). When the control switch (8) is in the conducting state and the circuit board assembly (6) detects that the voltage output by the battery pack meets the preset requirements, the output voltage of the battery pack is input to the vehicle wiring harness connector (11) through the device end connector (10). Button (2) is installed on the upper cover (1) and the control switch (8) is turned on and off by the button (2); The device end connector (10) is provided with a fault-prevention protrusion (101), which is located on the side where the device end connector (10) and the vehicle wiring harness end connector (11) are connected. The fault-prevention protrusion (101) matches the corresponding groove (111) on the vehicle wiring harness end connector (11).

2. The vehicle power-up device of claim 1, wherein The circuit board assembly (6) includes a PCB board and a control circuit arranged on the PCB board, the control circuit including: A filter circuit (12) is used to filter the voltage output by the battery pack, and the filter circuit (12) is connected to the battery pack. A voltage detection circuit (13) is used to detect whether the voltage across each battery (5) is greater than or equal to the starting voltage. The voltage detection circuit (13) is connected to the battery pack. The power supply circuit (14) is used to convert the voltage output by the battery pack into the operating voltage required by the MCU (15). The power supply circuit (14) is connected to the filter circuit (12). MCU (15) is used to control the operation of the entire vehicle jump-start device. The MCU (15) is connected to the voltage detection circuit (13) and the power supply circuit (14) respectively. The control switch (8) is connected to the MCU (15), the filter circuit (12) and the device connector (10) respectively.

3. The vehicle power-up device of claim 2, wherein The control circuit also includes a reverse connection protection circuit, which includes a number of diodes (17) equal to the number of batteries (5). The positive terminals of the batteries (5) are connected one-to-one with the positive terminals of the diodes (17), and the negative terminals of the diodes (17) are connected to the filter circuit (12) and the voltage detection circuit (13).

4. The apparatus of claim 2, wherein, It also includes indicator lights (7); The control circuit also includes an LED driver (16), which is connected to the MCU (15) and the indicator light (7) respectively. When the voltage detection circuit (13) detects that the voltage across each battery (5) is greater than or equal to the start-up voltage, the LED driver (16) drives the green light of the indicator light (7) to light up; otherwise, the red light of the indicator light (7) is driven to light up.

5. The vehicle power-up device of claim 2, wherein The control switch (8) is a self-locking micro switch; The MCU (15) starts timing after detecting that the device end connector (10) and the vehicle wiring harness end connector (11) are connected and the control switch (8) is closed. After the timing reaches the preset time, the MCU (15) controls the control switch (8) to open.

6. The vehicle power-up device of claim 1, wherein The battery pack consists of four 12V batteries connected in parallel.

7. The apparatus according to claim 1 or 2, wherein The individual batteries (5) of the battery pack are connected in parallel through conductive sheets (3), and the battery pack is also connected to the circuit board assembly (6) through conductive sheets (3).

8. A vehicle characterized by comprising: The vehicle jump-start device as described in any one of claims 1 to 7 is used.

9. The vehicle of claim 8, characterized in that: The vehicle jump-start device is installed on the outside of the vehicle.

Images