Intelligent clamp with function of displaying voltage accessed to automobile battery

Abstract

The utility model relates to the technical field of an automobile feed emergency starting power supply, in particular to an intelligent clamp capable of displaying voltage accessed to an automobile battery, which comprises a power supply module, a control module, a power supply module and a control module, and is characterized in that the power supply module is used for monitoring and managing an external power supply and the automobile battery; the key module is used for starting an external forced power supply system for the automobile according to the monitoring management result of the power supply module; the warning module is used for warning the state of an external power supply and the state of an automobile battery according to the monitoring management result of the power supply module; the protection module is used for automatically disconnecting power supply connection; and the display module is used for displaying the external power supply voltage value and the automobile battery voltage value. According to the utility model, by directly checking the voltage of the external power supply and the voltage of the automobile battery, an additional voltage measuring device is not needed, so that a user can timely know the voltage value of the automobile battery and master the feed degree of the battery, and then directly judge whether the automobile battery needs to be replaced immediately or not.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive power supply emergency starting power supplies, and specifically relates to an intelligent clamp with the function of displaying the voltage of the connected automotive battery. Background Art

[0002] At present, emergency starting power supplies on the market are usually equipped with intelligent clamps to facilitate users to quickly start a vehicle when the automotive battery runs out of power. However, there is a common technical defect in existing intelligent clamps: they cannot directly display the voltage of the power supply and the voltage of the externally connected automotive battery. This limitation causes users unable to intuitively judge whether the voltage of the power supply is within the normal range during use, nor can they understand the degree of power shortage of the automotive battery. Therefore, in actual use, if users want to obtain these important voltage information, they must carry a dedicated voltage measuring device for measurement additionally, which not only increases the burden on users but also reduces the user experience.

[0003] In addition, due to the lack of real-time voltage feedback, when users encounter situations where the automotive battery is severely out of power or the power supply voltage is insufficient, they often cannot make a correct judgment in time, which may cause them to miss the best starting opportunity or result in unnecessary damage. Therefore, there is an urgent need for a new type of intelligent clamp for emergency starting power supplies to solve the problem that existing power intelligent clamps cannot display the voltage of the power supply and the voltage of the connected automotive battery. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an intelligent clamp with the function of displaying the voltage of the connected automotive battery to solve the problem that existing power intelligent clamps cannot display the voltage of the power supply and the voltage of the connected automotive battery as proposed in the above background art.

[0005] The technical solution of the utility model is: an intelligent clamp with the function of displaying the voltage of the connected automotive battery, comprising:

[0006] A power supply module for monitoring and managing the external power supply and the automotive battery;

[0007] A key module for starting the external forced power supply system of the vehicle according to the monitoring and management results of the power supply module;

[0008] A warning module for warning the state of the external power supply and the state of the automotive battery according to the monitoring and management results of the power supply module;

[0009] A protection module for automatically disconnecting the power connection;

[0010] A display module for displaying the external power supply voltage value and the automotive battery voltage value;

[0011] Information interaction is carried out among the power supply module, the button module, the warning module, the protection module and the display module through the central controller MCU.

[0012] Furthermore, an identification module is included, and the identification module is electrically connected to the central controller MCU;

[0013] The identification module is used to obtain the starting state of the vehicle after the vehicle battery is connected to the intelligent clamp, and send the starting state of the vehicle to the protection module.

[0014] Furthermore, a starting module and a detachment module are included, and both the starting module and the detachment module are electrically connected to the central controller MCU;

[0015] The starting module is used to electrically connect the external power supply to the vehicle battery;

[0016] The detachment module is used to disconnect the power connection when the intelligent clamp and the vehicle battery are detached.

[0017] Furthermore, the power supply module includes:

[0018] A voltage stabilization control unit for providing a stable power supply voltage;

[0019] A voltage measurement unit for measuring the magnitude of the external power supply voltage and the magnitude of the vehicle battery voltage;

[0020] A voltage comparison unit for setting a voltage requirement range, obtaining the voltage relationship between the magnitude of the external power supply voltage and the voltage requirement range, and sending the voltage relationship to the warning module;

[0021] A vehicle battery identification unit for identifying the access state of the vehicle battery and sending the access state to the warning module.

[0022] Furthermore, the warning module includes:

[0023] An indicator light unit for displaying the power supply voltage state and the vehicle battery access state through optoelectronic indication;

[0024] A buzzer unit for displaying the power supply voltage state and the vehicle battery access state through sound indication.

[0025] Furthermore, the protection module includes:

[0026] An over-temperature protection unit for disconnecting the power connection according to the comparison result between the working temperature of the intelligent clamp and the preset temperature threshold;

[0027] An under-voltage and over-voltage protection unit for disconnecting the power connection according to the comparison result between the voltage value of the power supply and the preset voltage threshold;

[0028] An overcurrent protection unit for disconnecting the power connection according to the comparison result between the supply current and a preset current threshold.

[0029] Furthermore, the display module includes, but is not limited to, a liquid crystal display screen and an LED display screen.

[0030] The present utility model provides an intelligent clip for displaying the access voltage of an automotive battery through improvement. Compared with the prior art, it has the following improvements and advantages:

[0031] First: By directly checking the external power supply voltage and the automotive battery voltage, the present utility model does not require the use of an additional voltage measuring device, which helps the user to timely understand the voltage value of the automotive battery, master the degree of battery power loss, and thus can directly judge whether it is necessary to immediately replace the automotive battery.

[0032] Second: The present utility model integrates a key control circuit. When the control system makes a misjudgment, the user can long-press the key to achieve the forced power supply start function for the vehicle.

[0033] Third: The present utility model can automatically identify whether the vehicle starts after the battery is connected to the intelligent clip and automatically turn off the electrical connection between the intelligent clip and the automotive battery, thereby reducing the risk of misoperation.

[0034] Fourth: The present utility model provides acoustic and optical prompts for the power supply voltage state and the state of accessing the automotive battery through an indicator light and a buzzer, thereby facilitating the user to quickly understand the system state. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The following further explains the present utility model in conjunction with the drawings and embodiments:

[0036] Figure 1 is a system block diagram of the intelligent clip of the present utility model for displaying the access voltage of an automotive battery. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] It should be noted that in the description of the present invention, the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0039] In addition, it should be understood that for the convenience of description, the sizes of the various components shown in the drawings are not drawn according to the actual proportional relationship. For example, the thickness or width of some layers may be exaggerated relative to other layers.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined or described in one drawing, it will not be necessary to further discuss and describe it specifically in the description of subsequent drawings.

[0041] Embodiment 1

[0042] Reference Figure 1 , this embodiment provides an intelligent clip with the function of displaying the access voltage of the automotive battery. The intelligent clip includes a power supply module, a key module, a warning module, a protection module, a display module, an identification module, a startup module, a detachment module, and a central controller MCU. Among them, the power supply module, the key module, the warning module, the protection module, the display module, the identification module, the startup module, and the detachment module are electrically connected through the central controller MCU, and information interaction is carried out among the power supply module, the key module, the warning module, the protection module, the display module, the identification module, the startup module, and the detachment module through the central controller MCU.

[0043] In this embodiment, the power supply module is responsible for monitoring and managing the external power supply and the automotive battery to ensure that the voltage is stable and within a safe range. The warning module is used to warn the state of the external power supply and the automotive battery according to the monitoring and management results of the power supply module, that is, to prompt the user of the state of the power supply and the automotive battery through an indicator light and a buzzer. The protection module is used to automatically disconnect the power connection to prevent damage caused by overheating, undervoltage, overvoltage, overcurrent, etc.

[0044] Furthermore, the key module is used to externally force the power supply system of the vehicle to start according to the monitoring and management results of the power supply module, that is, to allow the user to manually start the vehicle under specific circumstances, such as when the control system makes a misjudgment. At the same time, the key module can adopt a mechanical switch or a touch sensing circuit, such as an SPST (single-pole single-throw) push-button switch.

[0045] Furthermore, the display module is used to display the external power supply voltage value and the automotive battery voltage value, where the display module includes, but is not limited to, a liquid crystal display screen, an LED display screen, or other digital display devices. Specifically, in this embodiment, the display module can be selected as, for example, a 16x2 LCD display screen, or an OLED display screen.

[0046] Furthermore, the identification module is used to obtain the startup state of the vehicle after the automotive battery is connected to the intelligent clamp, and send the startup state of the vehicle to the protection module, that is, it is used to obtain the startup state of the vehicle after the automotive battery is connected to the intelligent clamp, and send this state to the protection module. Thus, when the vehicle starts, the protection module automatically disconnects the power connection to prevent over-discharge. Specifically, in this embodiment, the identification module can adopt a microprocessor combined with a current detection circuit, such as an STM32 microcontroller plus a Hall effect sensor.

[0047] Furthermore, the startup module is used to electrically connect the external power supply to the automotive battery, that is, when the user needs to start the vehicle, the external power supply can be electrically connected to the automotive battery. At the same time, in this embodiment, the startup module can adopt a relay or a MOSFET switch, such as a small relay JQC-3F, or an IRF540N MOSFET.

[0048] Furthermore, the detachment module is used to disconnect the power connection when the intelligent clamp and the automotive battery are detached, that is, when the intelligent clamp is detached from the automotive battery, the power connection is automatically disconnected, thus ensuring its safety. At the same time, in this embodiment, the detachment module can adopt a contact sensor, a magnetic sensor, etc., such as a reed switch or a Hall effect sensor.

[0049] In this embodiment, the operation process of each module is specifically as follows:

[0050] The power module is responsible for monitoring and managing the voltages of the power supply and the automotive battery, and sending the information to the central controller MCU. The button module allows the user to manually start the vehicle under specific circumstances and interact with the startup module through the central controller MCU. The warning module, based on the information provided by the central controller MCU, uses an indicator light and a buzzer to prompt the user about the states of the power supply and the automotive battery. The protection module automatically disconnects the power connection based on the information provided by the central controller MCU to prevent various abnormal situations. The display module displays the external power supply voltage value and the automotive battery voltage value, and the information is provided by the central controller MCU. The identification module detects the vehicle startup state, sends the information to the central controller MCU, and the latter controls the action of the protection module. The startup module, under the control of the central controller MCU, electrically connects the external power supply to the automotive battery. The detachment module detects the connection state between the intelligent clamp and the automotive battery, sends the status information to the central controller MCU, and at the same time the latter controls the action of the detachment module.

[0051] Specifically, the power supply module monitors the voltage value of the external power supply, ensures that the voltage is stable within a safe range, monitors the voltage value of the vehicle battery, and sends the monitoring results to the central controller MCU. The warning module receives the status information of the power supply and the vehicle battery from the central controller MCU, and based on the voltage information provided by the power supply module, prompts the user about the status of the power supply and the vehicle battery through an indicator light and a buzzer. The protection module receives the status information of the power supply and the vehicle battery from the central controller MCU, and based on the voltage information provided by the power supply module, automatically disconnects the power connection to prevent damage caused by overheating, undervoltage, overvoltage, overcurrent, etc. The button module allows the user to manually start the vehicle under specific circumstances, that is, after the user presses the button, a signal is sent to the central controller MCU to start the vehicle. The display module displays the external power supply voltage value and the vehicle battery voltage value, receives the voltage information from the central controller MCU, and displays it. The identification module obtains the vehicle start status after the vehicle battery is connected to the intelligent clamp, and sends this status to the central controller MCU. At the same time, the central controller MCU controls the protection module to automatically disconnect the power connection according to the information provided by the identification module. The start module electrically connects the external power supply to the vehicle battery when the user needs to start the vehicle, and receives instructions from the central controller MCU to establish a power connection through a relay or a MOSFET switch. The detachment module automatically disconnects the power connection when the intelligent clamp is detached from the vehicle battery, and uses contact sensors, magnetic sensors, etc. to detect the connection status between the intelligent clamp and the vehicle battery, and sends the status information to the central controller MCU.

[0052] That is to say, with the central controller MCU as the core, it receives the data and status information of each module, and sends relevant operation instructions according to the preset logic to control the actions of the corresponding modules. That is, all modules perform information interaction and control instruction transmission through the central controller MCU, so that the working processes between the modules are closely connected, forming a complete closed-loop control system, which further ensures the safe and stable operation of the intelligent clamp.

[0053] Embodiment 2

[0054] Embodiment 2 designs an intelligent clamp with the function of displaying the voltage of the connected vehicle battery. Its basic structure is the same as that of Embodiment 1. The difference is that the power supply module in this embodiment includes a voltage stabilization control unit, a voltage measurement unit, a voltage comparison unit, and a vehicle battery identification unit. The warning module includes an indicator light unit and a buzzer unit. The protection module includes an overheat protection unit, an under-overvoltage protection unit, and an overcurrent protection unit.

[0055] In this embodiment, the power supply module includes a voltage stabilization control unit, a voltage measurement unit, a voltage comparison unit, and an automotive battery identification unit. Specifically, the voltage stabilization control unit is used to provide a stable supply voltage. It uses a linear voltage regulator or a switched-mode power supply (SMPS) to achieve the voltage stabilization function, ensuring the stability of the output voltage. At the same time, it can also select the LM78XX series linear voltage regulators or the TPS54200 series switched-mode power supply controllers. It is used to convert the input unstable voltage into a stable output voltage to meet the requirements of the internal circuit of the intelligent clamp. The voltage measurement unit is used to measure the magnitude of the external supply voltage and the automotive battery voltage. It uses an analog-to-digital converter (ADC) to measure the voltage value, and can also select the ADS1115 high-precision ADC module. It is used to convert the analog voltage signal into a digital signal for easy processing by the central controller MCU. The voltage comparison unit is used to set the voltage requirement range, obtain the voltage relationship between the magnitude of the external supply voltage and the voltage requirement range, and send the voltage relationship to the warning module. It can be implemented through a comparator or the built-in comparison function of the central controller MCU, or the LM3914 voltage comparator can be used, or directly utilize the internal function of the central controller MCU. That is, by setting the voltage requirement range, comparing the external supply voltage with the requirement range, and deciding whether to issue a warning. The automotive battery identification unit is used to identify the connection status of the automotive battery and send the connection status to the warning module. It uses a current detection circuit or a Hall effect sensor to detect the connection status of the automotive battery, and the Hall effect sensor can also be used, such as the A1324 of Allegro MicroSystems. That is, to detect the connection status of the automotive battery and send the connection status to the warning module.

[0056] In this embodiment, the warning module includes an indicator light unit and a buzzer unit. Specifically, the indicator light unit is used to display the power supply voltage status and the automotive battery connection status through optoelectronic indication. Among them, the indicator light unit can use LED indicator lights, and different colors of LED indicator lights can be selected, such as red, green, yellow, etc. It indicates the power supply voltage status and the automotive battery status through different colors or flashing modes. The buzzer unit is used to display the power supply voltage status and the automotive battery connection status through sound indication. Among them, the buzzer unit can use a buzzer, or a buzzer with a built-in oscillation circuit can also be selected, such as the ER-TS1606P of Panasonic. That is, it prompts the power supply voltage status and the automotive battery status through sounds of different frequencies.

[0057] In this embodiment, the protection module includes an over-temperature protection unit, an under- and over-voltage protection unit, and an over-current protection unit. Specifically, the over-temperature protection unit is configured to disconnect the power connection according to the comparison result between the operating temperature of the intelligent clip and a preset temperature threshold. The over-temperature protection unit is implemented using a temperature sensor and a comparator, or an NTC thermistor and an LM35 temperature sensor can also be used. That is, it monitors the operating temperature of the intelligent clip and automatically disconnects the power connection when the temperature is too high. The under- and over-voltage protection unit is configured to disconnect the power connection according to the comparison result between the voltage value of the power supply and a preset voltage threshold. The under- and over-voltage protection unit uses a voltage comparator or the built-in comparison function of the central controller MCU, or an LM339 voltage comparator can also be used. That is, it monitors the voltage of the power supply and automatically disconnects the power connection when the voltage exceeds the safe range. The over-current protection unit is configured to disconnect the power connection according to the comparison result between the supply current and a preset current threshold. The over-current protection unit is implemented using a current detection resistor and a comparator, or a precision resistor and an LM3914 voltage comparator can also be used. That is, it monitors the supply current and automatically disconnects the power connection when the current is too large.

[0058] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent clamp with the function of displaying the voltage of the connected vehicle battery, characterized in that, It includes: A power supply module for monitoring and managing an external power supply and an automotive battery; A key module for starting an external forced power supply system of the vehicle according to the monitoring and management results of the power supply module; An alarm module for alarming the status of the external power supply and the status of the automotive battery according to the monitoring and management results of the power supply module; A protection module for automatically disconnecting the power connection; A display module for displaying the external power supply voltage value and the automotive battery voltage value; Information interaction is carried out between the power supply module, the key module, the alarm module, the protection module and the display module through a central controller MCU.

2. The intelligent clip with the function of displaying the voltage of the accessed vehicle battery according to claim 1, wherein, It further includes an identification module, and the identification module is electrically connected to the central controller MCU; The identification module is used to obtain the starting status of the vehicle after the automotive battery is connected to the intelligent clamp, and send the starting status of the vehicle to the protection module.

3. The intelligent clip with the function of displaying the accessed vehicle battery voltage according to claim 1 or 2, characterized in that, It further includes a starting module and a detachment module, and both the starting module and the detachment module are electrically connected to the central controller MCU; The starting module is used to electrically connect the external power supply to the automotive battery; The detachment module is used to disconnect the power connection when the intelligent clamp and the automotive battery are detached.

4. The intelligent clamp with the function of displaying the voltage of the accessed vehicle battery according to claim 1, wherein The power supply module includes: A voltage stabilization control unit for providing a stable power supply voltage; A voltage measurement unit for measuring the magnitude of the external power supply voltage and the magnitude of the automotive battery voltage; A voltage comparison unit for setting a voltage requirement range, obtaining the voltage relationship between the magnitude of the external power supply voltage and the voltage requirement range, and sending the voltage relationship to the alarm module; An automotive battery identification unit for identifying the access status of the automotive battery and sending the access status to the alarm module.

5. An intelligent clip having a display for accessing the voltage of an automotive battery according to claim 1 or 4, characterized in that, The alarm module includes: An indicator light unit for displaying the power supply voltage status and the access automotive battery status through optoelectronic indication; A buzzer unit for displaying the power supply voltage status and the access automotive battery status through sound indication.

6. The intelligent clip with the function of displaying the voltage of the accessed vehicle battery according to claim 1, wherein The protection module includes: An over-temperature protection unit for disconnecting the power connection according to the comparison result between the operating temperature of the intelligent clamp and a preset temperature threshold; An under-voltage and over-voltage protection unit for disconnecting the power connection according to the comparison result between the voltage value of the power supply and a preset voltage threshold; An over-current protection unit for disconnecting the power connection according to the comparison result between the supply current and a preset current threshold.

7. An intelligent clip with the function of displaying the accessed automotive battery voltage according to claim 1, characterized in that, The display module includes but is not limited to a liquid crystal display screen and an LED display screen.

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