Display screen system of mobile power supply

Abstract

The utility model relates to a display screen system of a mobile power supply, which comprises a mobile power supply body, the mobile power supply body comprises a display screen and a display screen control module, the display screen is provided with a plurality of display units, the display screen is arranged on a shell of the mobile power supply body, and the display screen control module is electrically connected with the display screen. The output module, the BMS module, the input module and the inverter in the mobile power supply body are respectively connected with the display screen control module through the sampling circuit and are transmitted to the display screen through the display screen control module, and the display screen displays corresponding display units. The system feeds back the input and output states of the mobile power supply body in real time, monitors the internal state of the mobile power supply in real time and feeds back through the display screen.

Description

Technical Field

[0001] The utility model relates to the field of displays, and particularly to a display screen system of a mobile power supply. Background Art

[0002] A mobile power supply is a movable charging device. When there is a power outage or when charging is needed during outdoor work or outdoor travel, the mobile power supply provides electrical energy for people's electrical devices to ensure the normal use of the devices and solve the problem of emergency power consumption for people. The display screen systems of existing mobile power supply devices are relatively simple. Usually, they display basic values such as the battery voltage and the remaining battery level of the display system, and the display content is relatively single, unable to accurately display the current state and fault state of the mobile power supply. Content of the Utility Model

[0003] In view of the deficiencies in the background art, the technical problem to be solved by the utility model is to provide a display screen system of a mobile power supply, which monitors the input state and output state, and real-time monitors the internal state of the mobile power supply. The display unit of the display screen displays the current operating state and corresponding fault problems.

[0004] The utility model is achieved by adopting the following technical solutions: A display screen system of a mobile power supply, including a mobile power supply body, the mobile power supply body includes a battery, an output module, a BMS module, an input module, an inverter, a display screen and a display screen control module. The display screen has a plurality of display units, the display screen is arranged on the housing of the mobile power supply body, the display screen control module is electrically connected to the display screen, and the output module, the BMS module, the input module and the inverter are respectively connected to the display screen control module through a sampling circuit and transmitted to the display screen through the display screen control module, and the corresponding display units are displayed by the display screen.

[0005] Further, the display units include an input display unit, an output display unit, an AC display icon, a DC display icon, a fan display icon, a temperature display unit, a fault display unit, a digital display unit, an inverter power display unit and a UPS icon.

[0006] Further, the input display unit includes a charging icon, a charging power, a battery power percentage and a battery power icon; the output display unit includes a load status display icon, a load power and an output voltage; the temperature display unit includes a pointer and an arc indicator disk. A low-temperature icon "L" is arranged on the left side of the arc indicator disk, a high-temperature icon "H" is arranged on the right side of the arc indicator disk, and a normal temperature icon is arranged in the middle of the arc indicator disk. The pointer points to the corresponding icon according to the battery temperature state; the fault display unit includes a machine fault indicator light and a battery fault indicator light.

[0007] Further, the output module is connected to the display screen control module through a sampling circuit. When the output module is in the on state, the load power, load status, and output voltage are displayed in the output display unit. The output module includes USB, TYPE-C, lighting lamps, sockets, cigarette lighters, and a 6514 port. The output module is provided with a DC switch button on the housing, and a DC switch indicator light is configured on the DC switch button. When the output module is turned on through the DC button, the DC display icon on the display screen lights up, and at the same time, the DC switch indicator light remains on.

[0008] Further, the MOS temperature detection module for controlling the cigarette lighter output is electrically connected to the first sampling circuit. The first sampling circuit is connected to the AD conversion module to transmit temperature information to the display screen control module. The control module is provided with a temperature threshold. When the temperature transmitted by the MOS temperature detection module for controlling the cigarette lighter output is greater than 110 °C, the power supply output of the cigarette lighter is turned off, and at the same time, the DC display icon on the display screen flashes.

[0009] Further, the voltage module of the output module is electrically connected to the display screen control module through a second sampling circuit. When the output module is turned on, the mobile power supply body being in a high-potential state is the normal state, and the mobile power supply body being in a low-potential state is the abnormal state. The battery power percentage displays the percentage of the actual power. In the low-potential state, the battery power percentage and the battery power icon flash simultaneously.

[0010] Further, the inverter is provided with an inverter switch on the housing, and an inverter switch indicator light is provided on the inverter switch. Turning on the inverter switch makes the inverter in the AC power supply state, the AC display icon on the display screen lights up, and at the same time, the inverter power display unit displays the power of the inverter; the communication module of the inverter is electrically connected to the display screen control module through a third sampling circuit. The display screen control module sets a CRC check verification code. The display screen control module receives the signal from the communication module and performs verification according to the CRC check verification code. When an inverter communication failure is detected, the machine failure indicator light on the display screen remains on. When other components of the inverter except for communication fail, the machine failure indicator light on the display screen remains on, and at the same time, the inverter switch indicator light on the housing flashes.

[0011] Further, the mobile power supply body further includes a short circuit / overload protection module. The short circuit / overload protection module is electrically connected to the display screen control module through a DC sampling circuit. The short circuit / overload protection module detects faults of the mobile power supply body except for the battery. When the fault state is transmitted to the display screen control module through the DC sampling circuit, the machine failure indicator light on the display screen remains on, and at the same time, the DC switch indicator light flashes.

[0012] Further, the communication unit in the BMS module is electrically connected to the display screen control module through a fourth sampling circuit. The display screen control module sets a CRC check verification code. The display screen control module receives the signal of the BMS module through the communication unit of the BMS module, performs verification according to the CRC check verification code, and monitors the current state of the mobile power supply body in real time. It is displayed on the display unit of the display screen through the display screen control module. When the mobile power supply body is turned on, the current battery level is displayed by the battery power percentage and the battery power icon on the display unit. When in the charging or discharging state, the temperature of the battery is monitored in real time through the BMS module. When the temperature is too low or too high, the battery is in a temperature protection state, and the pointer of the temperature display unit on the display screen points to the low-temperature icon "L" or the high-temperature icon "H", or the display screen is in a non-display state.

[0013] Further, the input module includes a mains charging module and a vehicle charger / solar charger module. The charging board communication in the vehicle charger / solar charger module is electrically connected to the display screen control module through a fifth sampling circuit. The display screen control module receives the signal of the vehicle charger / solar charger module through the charging board communication. The display screen control module sets a CRC check verification code and performs verification according to the CRC check verification code. When the vehicle charger / solar charger module is in the charging state, the charging icon on the input display unit is lit, and the charging power is also displayed. The digital display unit displays the remaining charging time. When the mains power is input through the port of the mains charging module and is in the mains charging state, the UPS icon on the display unit is constantly lit. When the mains power input is disconnected, the UPS icon goes out.

[0014] In the present utility model, the system provides real-time feedback on the input and output states of the mobile power supply body. The input and / or output states not only display the actual states but also display the actual data of these states. Users can intuitively understand the charging power, battery level, and load status through the display screen. At the same time, it monitors the fault response in real time, clearly differentiates battery faults and faults of other components of the mobile power supply through the fault display unit, and users can clearly understand the internal state of the mobile power supply through the feedback information on the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic flow diagram of a display screen system based on UPS;

[0016] Figure 2 It is a schematic diagram of a mobile power supply body including a display screen view;

[0017] Figure 3 It is a schematic diagram of another view of the mobile power supply body;

[0018] Figure 4 It is a schematic diagram of the display screen at the moment when the display screen system of the mobile power supply is powered on;

[0019] Figure 5 Schematic diagram of the display screen when charging and power supply work simultaneously in the display screen system of a mobile power supply;

[0020] Figure 6 Schematic diagram of the display screen when the power supply is in the working state in the display screen system of a mobile power supply;

[0021] Figure 7 Schematic diagram of the over-temperature protection state of other components except the battery in the display screen system of a mobile power supply;

[0022] Figure 8 Schematic diagram of the display screen when other components except the battery fail in the display screen system of a mobile power supply;

[0023] Figure 9 Schematic diagram of the display screen when the battery is in the low-temperature protection state in the display screen system of a mobile power supply;

[0024] Figure 10 Schematic diagram of the display screen when the battery is in the over-temperature protection state in the display screen system of a mobile power supply; Detailed implementation manners

[0025] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation manners, structures, features and their effects of the present utility model as follows.

[0026] Refer to Figures 1-10 As shown, the present utility model provides a display screen system for a mobile power supply, including a mobile power supply body. The mobile power supply body includes a battery, an output module, a BMS module (battery management module), an input module, an inverter, a display screen 1 and a display screen control module, all of which are arranged in a housing 2 of the mobile power supply body. The display screen control module is electrically connected to the display screen 1. The display screen is arranged on the housing 2 of the mobile power supply body. An external power supply charges the battery through the input module. The battery is connected to the output module through the inverter to supply power to the output module, and the current state of the mobile power supply body is displayed by the display screen. The output module, BMS module, input module and inverter are respectively connected to the display screen control module through a sampling circuit and transmitted to the display screen through the display screen control module, and the corresponding display units are displayed by the display screen to real-time feedback the current state of the battery to the customer.

[0027] The display screen has a plurality of display units, and the display units include an input display unit 3, an output display unit 4, an AC display icon 5, a DC display icon 6, a fan display icon 7, a temperature display unit 8, a fault display unit 9, an inverter power display unit 10, a UPS icon 11, and a digital display unit 12. Specifically, the input display unit 3 includes a charging icon 31, a charging power 32, a battery power percentage 33, and a battery power icon 34. The battery power icon 34 is arranged in a ring shape and evenly divided into ten grids, and the number of grids of the battery power icon is displayed according to the actual battery power. The output display unit 4 includes a load status display icon 41, a load power 42, and an output voltage 43. The temperature display unit 8 includes a pointer and an arc-shaped indicator disk. A low-temperature icon "L" is arranged on the left side of the arc-shaped indicator disk, a high-temperature icon "H" is arranged on the right side of the arc-shaped indicator disk, and a normal temperature icon is arranged in the middle of the arc-shaped indicator disk. The pointer points to the corresponding icon according to the battery temperature status. The fault display unit 9 includes a machine fault indicator light 91 and a battery fault indicator light 92. When the mobile power supply body is in the power-on state, the fan automatically starts, and the fan display icon on the display screen lights up. When the mobile power supply body is in the discharge or power-on state, the digital display unit displays the remaining battery usage time, and the input display unit real-time displays the input status information. When the mobile power supply body is in the charging state, the digital display unit displays the remaining charging time, and the output display unit real-time displays the output status information.

[0028] The input module includes a mains charging module and a vehicle charger / solar charger module. The ports of the mains charging module and the vehicle charger / solar charger module 13 are both arranged on the housing 2. The charging board communication unit of the vehicle charger / solar charger module is electrically connected to the display screen control module through a fifth sampling circuit. The display screen control module sets a CRC check verification code. After receiving the signal of the vehicle charger / solar charger module through the charging board communication unit, the display screen control module performs verification according to the CRC check verification code and displays the corresponding display unit on the display screen.

[0029] Specifically, when the display screen control module receives the over-temperature signal transmitted by the charging board communication unit, the machine fault indicator light 91 on the display screen is always on, and at the same time, the pointer of the temperature display unit points to the high-temperature icon "H" on the right side, and the mobile power supply body is in the over-temperature protection state of the product except the battery (refer to Figure 7As shown. When the vehicle charger / solar charging module is in the charging state, the charging icon in the input display unit lights up, and at the same time, the charging power is displayed on the display screen, the digital display unit displays the remaining charging time, and the battery power percentage and the battery power icon display the current battery power in real time. When the input through port 14 of the mains charging module is in the mains charging state, the UPS icon 11 of the display unit is always on, the digital display unit displays the remaining charging time, and the battery power percentage and the battery power icon display the current battery power in real time. When the mains input is disconnected, the UPS icon 11 goes out. When the mains module and the vehicle charger / solar charging module charge at the same time, the mains charging module charges preferentially, and the vehicle charger / solar charging module is in a non-charging state.

[0030] The output module is connected to the display screen control module through a sampling circuit. When the output module is in the open state, the data transmitted through BMS communication is displayed in the output display unit 4 as the load power 41, the load status 42, and the output voltage 43. The load status display icon is arranged in a ring and evenly divided into ten grids. The output module includes USB15, TYPE-C16, a lighting lamp 17, a socket 18, a cigarette lighter 19, and Port 20 of 6514 , and the output module is provided with a DC switch button 21 on the housing. A DC switch indicator light is configured on the DC switch button. When the output module is turned on through the DC button, the DC display icon in the display screen lights up, and at the same time, the DC switch indicator light 24 is always on.

[0031] Specifically, the MOS temperature detection module that controls the cigarette lighter output is electrically connected to the first sampling circuit. The first sampling circuit is connected to the AD conversion module to transmit the temperature information to the display screen control module. The control module is provided with a temperature threshold. When the temperature transmitted by the MOS temperature detection module that controls the cigarette lighter output is greater than 110 °C, the cigarette lighter power supply output is turned off, and at the same time, the DC display icon 6 on the display screen flashes.

[0032] The voltage unit of the output module is electrically connected to the display screen control module through the second sampling circuit. When the DC output module is turned on, the mobile power supply body being in a high potential state is the normal state, and the mobile power supply body being in a low potential state is the abnormal state. The abnormal state of the low potential is displayed through the battery power percentage and the battery power icon. The battery power percentage value is small, and at the same time, the battery power percentage and the battery power icon flash.

[0033] The inverter is provided with an inverter switch 22 on the housing. The inverter switch has an inverter switch indicator light. Turning on the inverter switch makes the inverter in the AC power supply state, and the AC display icon on the display screen lights up. At the same time, the inverter power display unit displays the power of the inverter. The communication module of the inverter is electrically connected to the display screen control module through a third sampling circuit. The display screen control module sets a CRC check verification code. The display screen control module first receives the signal from the communication module, then performs verification according to the CRC check verification code, and displays the corresponding display unit on the display screen. Specifically, when monitoring an inverter communication failure, the machine failure indicator light on the display screen is always on. When other components of the inverter except for communication fail, the machine failure indicator light on the display screen is always on, and at the same time, the inverter switch indicator light 23 on the housing flashes.

[0034] The mobile power supply body further includes a short - circuit / over - load protection module. The short - circuit / over - load protection module is electrically connected to the display screen control module through a DC sampling circuit. The short - circuit / over - load protection module detects faults of the mobile power supply body except for the battery. When the fault state is transmitted to the display screen control module through the DC sampling circuit, the machine failure indicator light on the display screen is always on, and at the same time, the DC switch indicator light flashes. When the display screen control module receives the fault signal transmitted by the short - circuit / over - load protection module, the machine failure indicator light 91 on the display screen is always on, and at the same time, the DC switch indicator light flashes, and the mobile power supply body is in a fault state of the product except for the battery (refer to Figure 8 shown). The faults include overload, short - circuit, under - voltage, fan not rotating, etc.

[0035] The communication unit in the BMS module is electrically connected to the display screen control module through a fourth sampling circuit. The display screen control module sets a CRC check verification code. The display screen control module receives the signal of the BMS module through the communication unit of the BMS module, then performs verification according to the CRC check verification code, real - time monitors the current state of the mobile power supply body, and the display screen control module displays it on the display unit of the display screen. Specifically, when the mobile power supply body is in a usage state (charging or discharging state)

[0036] the display screen control module receives the data transmitted by the BMS communication, real - time monitors the power of the mobile power supply body. The current battery power is displayed through the battery power percentage 33 and the battery power icon 34 of the display unit, and the remaining usage time or remaining charging time of the battery is displayed in the digital display unit 12. At the same time, the temperature of the battery is real - time monitored through the BMS module. When the temperature is too low or too high, the mobile power supply body is in an over - temperature protection state, and the pointer of the temperature display unit on the display screen points to the low - temperature icon "L" or the high - temperature icon "H", or the display screen does not display.

[0037] The display screen monitors the battery temperature protection as follows:

[0038] During the discharging state: 1) When the battery temperature reaches -20°C ± 3°C, the mobile power supply body is in the first-level low-temperature protection state, and the machine fault indicator light and the battery fault indicator light light up simultaneously. At the same time, the pointer in the temperature display unit points to the low-temperature icon "L" (refer to Figure 9 as shown). 2) When the battery temperature reaches -25°C ± 3°C, the mobile power supply body is in the second-level low-temperature protection state. The output in the BMS module is turned off, the display screen is in a non-display state, and the inverter switch indicator light (the indicator light on the AC switch) flashes. 3) When the battery temperature is higher than -10°C ± 3°C, the low temperature of the mobile power supply body recovers, the display screen is normally displayed, and the pointer in the temperature display unit points to the middle normal temperature icon. 4) When the battery temperature reaches 60°C ± 3°C, the mobile power supply body is in the over-temperature warning state. The output in the BMS module is turned off, and the machine fault indicator light and the battery fault indicator light in the fault display unit light up simultaneously. At the same time, the pointer in the temperature display unit points to the high-temperature icon "H" (refer to Figure 10 as shown). 5) When the battery temperature reaches 65°C ± 3°C, the mobile power supply body is in the over-temperature protection state, and the output in the BMS module is turned off, and the display screen is in the off state. 6) When the battery temperature is lower than 55°C ± 3°C, the mobile power supply body resumes the working state.

[0039] During the charging state: 1) When the battery temperature reaches -10 ± 3°C, the mobile power supply body is in the low-temperature protection state, and the machine fault indicator light and the battery fault indicator light in the display screen light up simultaneously. At the same time, the pointer in the temperature display unit points to the low-temperature icon "L" (refer to Figure 9 as shown). 2) When the battery temperature reaches 0°C ± 3°C, the mobile power supply body returns to normal, and the display unit of the display screen is in the normal display state. 3) When the battery temperature reaches 55°C, the battery is in the over-temperature protection state, and the machine fault indicator light and the battery fault indicator light in the display screen light up simultaneously. At the same time, the pointer in the temperature display unit points to the high-temperature icon "H", and the input power supply is stopped (refer to Figure 10 as shown). 4) When the battery temperature reaches 50°C, the mobile power supply body returns to normal and normal charging is carried out.

[0040] The above is only the preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications equivalent to the above-disclosed technical content within the scope of the technical solution of the present invention, that is, the equivalent embodiment. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A display screen system of a mobile power source, comprising a mobile power source body, characterized in that: The mobile power source body includes a battery, an output module, a BMS module, an input module, an inverter, a display screen and a display screen control module. The display screen has multiple display units. The display screen is arranged on the shell of the mobile power source body. The display screen control module is electrically connected to the display screen. The output module, BMS module, input module and inverter are respectively connected to the display screen control module through a sampling circuit, and are transmitted to the display screen through the display screen control module, and the corresponding display unit is displayed on the display screen.

2. The display screen system of a mobile power source according to claim 1, characterized in that: The display unit includes an input display unit, an output display unit, an AC display icon, a DC display icon, a fan display icon, a temperature display unit, a fault display unit, a digital display unit, an inverter power display unit and a UPS icon.

3. The display screen system of a mobile power source according to claim 2, characterized in that: The input display unit includes a charging icon, charging power, battery power percentage and a battery power icon; The output display unit includes a load status display icon, load power and output voltage; the temperature display unit includes a pointer and an arc-shaped indicator disk, a low temperature icon "L" is set on the left side of the arc-shaped indicator disk, a high temperature icon "H" is set on the right side of the arc-shaped indicator disk, and a normal temperature icon is set in the middle of the arc-shaped indicator disk. The pointer points to the corresponding icon according to the battery temperature status; the fault display unit includes a machine fault indicator light and a battery fault indicator light.

4. The display screen system of a mobile power source according to claim 3, characterized in that: The output module is connected to the display screen control module through a sampling circuit. When the output module is turned on, the output display unit displays the load power, load status and output voltage. The output module includes USB, TYPE-C, lighting, socket, cigarette lighter and 6514 port. The output module is provided with a DC switch button on the shell. The DC switch button is provided with a DC switch indicator light. When the output module is turned on by the DC button, the DC display icon in the display screen lights up, and the DC switch indicator light is always on.

5. The display screen system of a mobile power source according to claim 4, characterized in that: The MOS temperature detection module output by the cigarette lighter is electrically connected to the first sampling circuit, and the first sampling circuit is connected to the AD conversion module to transmit the temperature information to the display screen control module. The control module is provided with a temperature threshold. When the temperature transmitted by the MOS temperature detection module output by the cigarette lighter is greater than 110°C, the power supply output of the cigarette lighter is turned off, and the DC display icon on the display screen flashes.

6. A display screen system for a mobile power source according to claim 4 or 5, characterized in that: The voltage module of the output module is electrically connected to the display screen control module through a second sampling circuit. When the output module is turned on, the mobile power supply body is in a high potential state as a normal state, and the mobile power supply body is in a low potential state as an abnormal state. The battery power percentage displays the percentage of actual power. In the low potential state, the battery power percentage and the battery power icon flash at the same time.

7. The display screen system of a mobile power source according to claim 6, characterized in that: The inverter is provided with an inverter switch on the shell, and the inverter switch has an inverter switch indicator light. When the inverter switch is turned on, the inverter is in AC power supply state, the AC display icon on the display screen lights up, and the inverter power display unit displays the power of the inverter; the communication module of the inverter is electrically connected to the display screen control module through the third sampling circuit, the display screen control module is provided with a CRC check verification code, the display screen control module receives the signal of the communication module, and performs verification according to the CRC check verification code. When monitoring the inverter communication failure, the machine fault indicator light on the display screen is always on, and when the inverter has a failure in other components except the communication, the machine fault indicator light on the display screen is always on, and the inverter switch indicator light on the shell flashes.

8. A display screen system for a mobile power source according to claim 4, 5 or 7, characterized in that: The mobile power source body also includes a short circuit / overload protection module, which is electrically connected to the display screen control module through a DC sampling circuit. The short circuit / overload protection module detects faults of the mobile power source body other than the battery. When the fault state is transmitted to the display screen control module through the DC sampling circuit, the machine fault indicator light on the display screen is always on, and the DC switch indicator light flashes at the same time.

9. The display screen system of a mobile power source according to claim 8, characterized in that: The communication unit in the BMS module is electrically connected to the display screen control module through the fourth sampling circuit. The display screen control module sets a CRC verification code. The display screen control module receives the signal of the BMS module through the communication unit of the BMS module, performs verification according to the CRC verification code, monitors the current state of the mobile power source body in real time, and displays it on the display unit of the display screen through the display screen control module. When the mobile power source body is turned on, the current battery capacity is displayed by the battery capacity percentage and the battery capacity icon of the display unit. When it is in the charging or discharging state, the temperature of the battery is monitored in real time through the BMS module. When the temperature is too low or too high, the battery is in a temperature protection state, and the pointer of the temperature display unit of the display screen points to the low temperature icon "L" or the high temperature icon "H", or the display screen does not display the state.

10. The display screen system of a mobile power source according to claim 9, characterized in that: The input module includes a mains charging module and a car charger / solar charging module. The charging board in the car charger / solar charging module is electrically connected to the display screen control module through the fifth sampling circuit. The display screen control module receives the car charger / solar charging module signal through the charging board communication. The display screen control module sets a CRC check verification code and performs verification according to the CRC check verification code. When the car charger / solar charging module is in a charging state, the charging icon in the input display unit lights up, and the charging power is displayed at the same time, and the digital display unit displays the remaining charging time; when the mains power is input through the port of the mains charging module and is in a mains charging state, the UPS icon of the display unit is always on, and when the mains power input is disconnected, the UPS icon goes out.

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