Wide-voltage power supply for outdoor air conditioning suit

Abstract

The utility model relates to the technical field of outdoor air-conditioning suit power supplies, in particular to a wide-voltage power supply of an outdoor air-conditioning suit. The utility model relates to a wide-voltage power supply, which comprises an input interface, an output interface, a boost-buck circuit, a plurality of strings of battery packs, an MCU, an LED nixie tube and the like, the input interface receives 30W charging of an external adapter, the output interface comprises a DC port output 40W and a USB-A port output 12W, stable output in a wide voltage range is realized through the boost-buck circuit, the plurality of strings of battery packs provide stable power supply, and the power supply is stable. The MCU controls the working state and voltage regulation, and the LED nixie tube displays the electric quantity and the output voltage. In addition, the circuit also comprises a main key, a voltage increase key and a voltage decrease key which are used for switching on / off and adjusting the output voltage, and is provided with various protection functions, such as overcurrent protection, overvoltage protection, short-circuit protection and the like. The power supply has the characteristics of high efficiency and low standby power consumption, and the use experience of the outdoor air conditioning suit can be effectively improved.

Description

Technical Field

[0001] This application relates to the field of power supply technology for outdoor air-conditioned clothing, and in particular to a wide voltage power supply for outdoor air-conditioned clothing. Background Technology

[0002] Outdoor air-conditioned clothing, as a portable personal cooling device, provides users with a comfortable experience in high-temperature environments and is widely used by outdoor workers such as construction workers, sanitation workers, and traffic police. With technological advancements, various types of air-conditioned clothing have emerged, not only improving work efficiency but also effectively reducing the incidence of heatstroke. However, existing air-conditioned clothing has many shortcomings in terms of applicability and safety, making it difficult to meet diverse needs.

[0003] Most power supplies for air-conditioned clothing on the market currently use a single voltage output mode, typically supporting only a few fixed voltage settings, such as 3V, 4V, and 5V, which cannot meet the needs of different models and brands of air-conditioned clothing. Furthermore, these power supplies generally have weak battery life, typically only lasting a few hours, limiting extended use. To improve safety, some products have added simple over-temperature protection measures, but lack comprehensive protection mechanisms such as battery overcharge protection, undervoltage protection, and output short-circuit protection, resulting in significant safety hazards during actual use.

[0004] The main problems with the existing technologies described above are that current power supplies for air-conditioned clothing have a narrow output voltage range, short battery life, and lack multiple safety protection mechanisms, failing to meet users' demands for efficient, reliable, and safe power. These problems not only affect user experience but may also lead to safety accidents. Therefore, there is an urgent need to develop a wide-voltage power supply for outdoor air-conditioned clothing that can overcome the aforementioned shortcomings. Utility Model Content

[0005] The purpose of this application is to overcome the above-mentioned technical problems and provide a wide-voltage power supply for outdoor air-conditioning clothing.

[0006] An outdoor air-conditioning clothing wide-voltage power supply, comprising:

[0007] Input interface for receiving 30W charging input from an external adapter;

[0008] Output interfaces include one DC port outputting 40W and one USB-A port outputting 12W;

[0009] A buck-boost circuit, connected to the input and output interfaces, is used to achieve stable output over a wide voltage range;

[0010] Multiple battery packs are connected to a buck-boost circuit to store electrical energy and provide a stable power supply;

[0011] MCU, connected with each component, for controlling the working state and voltage regulation of the power supply;

[0012] LED nixie tube, connected with the MCU, for displaying the current power and the current output voltage.

[0013] Preferably, it further comprises a main button for controlling the power switch and adjusting the output voltage.

[0014] Preferably, it further comprises a voltage plus button and a voltage minus button for gradually increasing or decreasing the output voltage, respectively.

[0015] Preferably, the plurality of battery strings is a four-series battery string composed of 21700 type lithium batteries.

[0016] Preferably, it further comprises a protection circuit for realizing overcurrent protection, overvoltage protection, short circuit protection, battery overcharge protection, battery low voltage protection, output reverse connection protection, and output overcurrent protection.

[0017] Preferably, the input interface supports 20V / 1.5A input.

[0018] Preferably, the DC port in the output interface supports voltage regulation in steps of 1V within the range of 7-30V, and after starting up by long pressing the main button for 3S, the output voltage is 12V, and then the output voltage can be quickly adjusted to 12-17-22-26V by single clicking the main button once.

[0019] Preferably, the USB-A port in the output interface supports 5V / 2.4A output.

[0020] Preferably, the efficiency of the power supply is 90%.

[0021] Preferably, the standby power consumption of the power supply is less than 200 microamperes. BRIEF DESCRIPTION OF DRAWINGS

[0022] ATTACHMENT Figure 1 is a structure block diagram of a wide voltage power supply of an outdoor air conditioning suit according to Embodiment 1 of the present application DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings Figure 1 The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings

[0024] The inventors of this application have discovered that there are many types of air-conditioned clothing on the market, with inconsistent voltages. The power supplies they use often have short battery life, low output power, fixed output voltage levels (3-4), and lack features such as over-temperature protection, battery overcharge protection, battery undervoltage protection, output short-circuit protection, output overcurrent protection, and reverse connection protection. These power supply problems pose significant safety hazards to consumers. Therefore, this application primarily employs a wide-voltage power supply for outdoor air-conditioned clothing. By utilizing advanced step-up / step-down technology and a high-efficiency multi-string battery pack, it achieves stable output over a wide voltage range, solving the problem of narrow output voltage range in existing air-conditioned clothing power supplies. The following is a further detailed description of this application.

[0025] Example 1

[0026] The outdoor air-conditioning clothing wide-voltage power supply provided in this application includes an input interface, an output interface, a step-up / step-down circuit, a multi-cell battery pack, an MCU, and an LED digital display. The input interface receives 30 watts of charging from an external adapter; the output interface includes one DC port outputting 40 watts and one USB-A port outputting 12 watts; the step-up / step-down circuit is connected to the input and output interfaces to achieve stable output over a wide voltage range; the multi-cell battery pack is connected to the step-up / step-down circuit to store electrical energy and provide stable power; the MCU is connected to all components to control the power supply's operating state and voltage regulation; and the LED digital display is connected to the MCU to display the current battery level and current output voltage.

[0027] Specifically, the input interface includes a DC jack that accepts a 20-volt / 1.5-amp input voltage. This DC jack can use a universal Type-C interface or other standard interfaces to accommodate different adapter types. For example, a Type-C interface can be chosen because of its high transmission efficiency and good compatibility. Alternatively, a Micro-USB interface can be used, although its transmission speed is slightly lower than Type-C, it is more convenient for portability and use in certain situations.

[0028] The output interfaces include a DC socket and a USB-A port. The DC socket supports voltage adjustment in 1-volt increments from 7 to 30 volts. After pressing and holding the main button for 3 seconds to power on, the default output voltage is 12 volts. Each click of the main button then quickly switches between preset values ​​of 12 volts, 17 volts, 22 volts, and 26 volts. The USB-A port supports a maximum output power of 5 volts / 2.4 amps, suitable for charging most mobile devices. Both the DC socket and the USB-A port are waterproof, enhancing their durability and reliability in outdoor environments.

[0029] The boost-buck circuit is the core part of the entire power supply, which is responsible for converting the input voltage into the required output voltage and maintaining the stability of the output voltage. The boost-buck circuit can adopt various topologies, such as SEPIC (Single Ended Primary Inductance Converter) or Cuk converter. Both of these converters have high conversion efficiency and strong anti-interference ability, suitable for application in outdoor environments. In addition, Boost-Buck converters can also be used, which can also achieve high-efficiency conversion in a wide voltage range, but their cost is relatively low, more suitable for mass production.

[0030] The multi-string battery pack is composed of four 21700 type lithium batteries in series, with a large total capacity, which can ensure long-term endurance. Each battery unit can be monitored and managed by the BMS (Battery Management System) to ensure balanced charging and discharging of each battery unit. In addition to 21700 type lithium batteries, other types of lithium ion batteries such as 18650 type lithium batteries or soft package polymer lithium batteries can also be selected, each with advantages and disadvantages, which can be flexibly selected according to the actual application scenario.

[0031] The MCU serves as the central controller, responsible for coordinating the work of each module and implementing voltage regulation functions. The MCU can use ARM Cortex-M series processors, which have high performance and low power consumption characteristics, making them very suitable for embedded systems. In addition, the MCU integrates rich peripheral resources such as ADC (Analog-to-Digital Converter), PWM (Pulse Width Modulation), and SPI (Serial Peripheral Interface), which can be used to monitor battery status, control the working mode of the boost-buck circuit, and communicate with the LED digital tube.

[0032] The LED digital tube is used to display the current power and output voltage in real time, helping users understand the status of the power supply. The LED digital tube can use a four-bit seven-segment display, clearly and intuitively presenting relevant information. To improve display effects, LED digital tubes with backlight can be selected, which can be clearly visible in the dark or dimly lit environment. In addition, temperature sensors can also be integrated to display the current environmental temperature through the LED digital tube, further improving user experience.

[0033] The implementation principle of the embodiment is:

[0034] By adopting advanced step-up and step-down technology and high-efficiency multi-string battery pack, stable output in a wide voltage range is realized, solving the problem of narrow output voltage range of existing air-conditioning suit power supply. At the same time, by introducing MCU and LED digital tube, intelligent voltage regulation and state display are realized, improving the operation convenience and use experience of users. In addition, through the design of multiple protection mechanisms, the safety of the power supply is effectively guaranteed, avoiding safety hazards caused by overcurrent, overvoltage, short circuit and the like. Overall, the embodiment provides an efficient, reliable and safe outdoor air-conditioning suit wide voltage power supply, which significantly improves the shortcomings of existing products and meets the diversified use needs of users.

[0035] Embodiment 2

[0036] The outdoor air-conditioning suit power supply shell provided by the embodiment of the present application is made of ABS plastic material, including an input interface, an output interface, a scratch-resistant treatment, a wear-resistant step-up and step-down circuit, a multi-string battery pack, an MCU and an LED digital tube. The power supply is corrosion-resistant. The power supply is internally provided with an input interface for receiving 30W charging input from an external adapter; the output interface includes multiple layers and can classify one DC port output of 40W and one USB-A port output of 12W; the step-up and step-down storage power supply, charging line and circuit are connected with the input interface and the output interface, for realizing stable output of backup batteries and the like in a wide voltage range and avoiding; the multi-string battery pack is connected with the step-up and step-down circuit, for storing electrical energy and providing stable power supply, avoiding chaos and loss. In addition, the MCU is connected with each component, for controlling the working state and voltage regulation of the power supply; the LED digital tube is connected with the MCU, and the top of the box is provided with a handle, for displaying the current power and the current output voltage. The bottom is provided with a retractable power supply designed to solve the problems of narrow output voltage range, short endurance time and lack of pull rod of air-conditioning suit power supplies on the market, and facilitate users to carry multiple safety protection mechanisms.

[0037] Specifically, the input interface is a standard DC socket, supporting holding and dragging. The power supply is designed to have an input voltage of 20V / 1.5A, and this input interface can not only connect a dedicated adapter, but also can be connected through various ways such as a vehicle cigarette lighter converter, and can be fixed on a backpack with a rope, improving the flexibility of use. For example, in addition to the commonly used cylindrical plug, square or L-shaped plug can also be used on the waistband to reduce the burden, so as to be used in different occasions.

[0038] The power output interface is divided into two parts: one DC port supports all secondary features of 7 to 30 characteristics, with voltage adjustment every 1V step in the V range, and the other is a USB-A port that supports logical and combined effects of standard output of 5V / 2.4A. The design of the DC port allows users to choose the appropriate voltage output for charging and portable functions, making it suitable for different brands and models of air-conditioning suits combined with energy storage boxes. The USB-A port is convenient for users to charge their mobile phones or other small electronic devices when using the device indoors. For example, the DC port can use threaded terminals or quick plug terminals to perform well, and can better adapt to outdoor connections to meet different connection needs, while the USB-A port can be equipped with a dust cover to prevent dust from entering.

[0039] The buck-boost circuit uses high-efficiency synchronous rectification charging function to quickly recover power supply technology, which can maintain high efficiency output in a wide voltage range. The core components of the circuit include switching transistors, inductors, filter capacitors, etc. For example, the switching transistor can be selected as MOSFET or IGBT, the inductor can be selected as ferrite or powder core, and the filter capacitor can be selected as electrolytic capacitor or ceramic capacitor. The selection of these components not only affects the performance of the circuit, but also relates to the volume and weight of the entire power supply. In addition, the buck-boost circuit is also equipped with a temperature sensor to monitor the circuit temperature in real time, ensuring normal operation in high temperature environment.

[0040] The multi-string battery pack is composed of four 21700 type lithium batteries in series, with a total capacity of 16000mAh, which can provide continuous working time of more than 10 hours. The advantage of this battery pack is high energy density, long cycle life and low self-discharge rate. For example, 21700 type lithium batteries can be replaced by other high-performance lithium ion batteries such as 18650 or 26650 to meet the needs of different users. In addition, the battery pack is equipped with insulating pads and heat dissipation fins to ensure the safety and stability of the battery pack.

[0041] The MCU serves as the brain of the power supply, responsible for controlling the coordinated work of various modules. It can automatically adjust the output voltage through pre-set programs and monitor the state of the battery. For example, the MCU can use ARM Cortex-M series processors with high-speed computing capability and rich peripheral resources. In addition, the MCU also integrates ADC (Analog-to-Digital Converter) to read battery voltage and current data in real time, thereby realizing precise voltage regulation and protection functions.

[0042] LED nixie tubes are used to display the current power and output voltage, so that users can know the working status of the power supply at any time. For example, the LED nixie tube can use a four-digit seven-segment display, and each segment is composed of multiple LED beads, which has uniform brightness and wide viewing angle. In addition, the nixie tube can also add a backlight function, which is easier to read information in the night or in a dimly lit environment.

[0043] The implementation principle of the embodiment is:

[0044] The power supply realizes high-efficiency output in a wide voltage range by integrating advanced step-up and step-down technology and multiple battery strings. At the same time, the intelligent control function of the MCU ensures the stability and safety of the power supply. Compared with traditional single-voltage output power supplies, this power supply not only can adapt to more types of air-cooled suits, but also can provide longer battery life and comprehensive safety protection, significantly improving user experience and safety.

[0045] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made in terms of structure, shape, principle, etc. according to the present application should be covered within the protection scope of the present application.

Claims

1. An outdoor air conditioning garment wide voltage power supply, characterized by, The power supply comprises: an input interface for receiving 30W charging input from an external adapter; an output interface comprising a DC port outputting 40W and a USB-A port outputting 12W; a boost-buck circuit connected to the input interface and the output interface, for realizing stable output in a wide voltage range; a multi-string battery pack connected to the boost-buck circuit, for storing electric energy and providing stable power supply; an MCU connected to each component, for controlling the working state of the power supply and voltage regulation; an LED number tube connected to the MCU, for displaying the current electric quantity and the current output voltage.

2. The wide voltage power supply for an outdoor air conditioning suit according to claim 1, characterized in that, The power supply further comprises a main key for controlling the power supply switch and adjusting the output voltage.

3. An outdoor air conditioning garment according to claim 2, wherein, The power supply further comprises a voltage plus key and a voltage minus key for gradually increasing or decreasing the output voltage, respectively.

4. The wide voltage power supply for an outdoor air conditioning suit of claim 1, wherein, The multi-string battery pack is a four-string battery pack composed of 21700 lithium batteries.

5. The wide voltage power supply for an outdoor air conditioning suit of claim 1, wherein, The power supply further comprises a protection circuit for realizing overcurrent protection, overvoltage protection, short-circuit protection, battery overcharge protection, battery low-voltage protection, output reverse connection protection, and output overcurrent protection.

6. The wide voltage power supply for an outdoor air conditioning suit of claim 1, wherein, The input interface supports 20V / 1.5A input.

7. The wide voltage power supply for an outdoor air conditioning suit of claim 1, wherein, The DC port in the output interface supports voltage regulation in steps of 1V within the range of 7-30V, and after the power supply is turned on by long-pressing the main key for 3S, the output voltage is 12V, and then the output voltage can be quickly adjusted in the range of 12-17-22-26V by single-clicking the main key.

8. The wide voltage power supply for an outdoor air conditioning suit of claim 1, wherein, The USB-A port in the output interface supports 5V / 2.4A output.

9. The wide voltage power supply for an outdoor air conditioning suit of claim 1, wherein, The efficiency of the power supply is 90%.

10. The wide voltage power supply for an outdoor air conditioning suit of claim 1, wherein, The standby power consumption of the power supply is less than 200 microamperes.

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