Charging and discharging neck fan

Abstract

The utility model discloses a kind of charge-discharge neck-hung fan, it is related to neck-hung fan technical field, including first shell and second shell, the inside of first shell and second shell is fixedly provided with rechargeable battery, the inside of first shell is also fixedly provided with charging circuit board, the inside of second shell is also fixedly provided with discharge circuit board, charging interface and discharge interface are respectively integrated on the charging circuit board and discharge circuit board and are provided with.The charge-discharge function is integrated on neck-hung fan, can be charged for mobile phone, wireless earphone and other portable electronic equipment outdoors, break through the single heat dissipation limitation of traditional neck-hung fan, expand use scene, improve the adaptability of product to outdoor power auxiliary demand, enhance practicality and functionality, better satisfy the multiple needs of user under mobile scene.

Description

Technical Field

[0001] This utility model relates to the field of neck-hanging fan technology, and in particular to a charging and discharging neck-hanging fan. Background Technology

[0002] In outdoor activities, neck fans have become a common portable cooling device due to their ease of wear and ability to continuously provide cooling. However, existing neck fans have relatively limited functionality, mostly focusing only on heat dissipation through fan operation and lacking a discharge function. When users are outdoors and their electronic devices (such as mobile phones and wireless earphones) are at risk of shutting down due to low battery, existing neck fans cannot replenish their power, failing to meet users' needs for extended battery life in mobile scenarios. This limits the product's practicality and functional expansion in various scenarios, necessitating technological innovation to endow neck fans with integrated charging and discharging capabilities to address the pain point of outdoor power assistance. Utility Model Content

[0003] To address the technical problems existing in the background art, this utility model proposes a charging and discharging neck fan.

[0004] The present invention discloses a rechargeable and discharging neck fan, comprising a first housing and a second housing. A rechargeable battery is fixedly disposed inside both the first housing and the second housing. A charging circuit board is also fixedly disposed inside the first housing, and a discharging circuit board is also fixedly disposed inside the second housing. A charging interface and a discharging interface are respectively integrated on the charging circuit board and the discharging circuit board.

[0005] Furthermore, the first housing and the second housing are connected by a deformable connector, and a spring is fixedly installed inside the deformable connector.

[0006] Furthermore, a power switch is embedded in the side of the first housing, and a contact switch is also integrated on the charging circuit board, the contact switch corresponding to the power switch.

[0007] Furthermore, the charging circuit board and the discharging circuit board are respectively integrated with charging indicator lights and discharging indicator lights. The back of the first housing and the second housing are provided with several reserved openings. The charging interface, the discharging interface, the charging indicator lights and the discharging indicator lights are all exposed on the outside of the first housing and the second housing through the reserved openings.

[0008] Furthermore, the types of the charging and discharging interfaces include, but are not limited to, USB-C, Micro-USB, or Lightning interfaces, and the charging and discharging indicator lights are LED lights.

[0009] Furthermore, both the first and second housings have air inlets and outlets on their inner sides, and both the first and second housings have fans installed inside them. The air inlets of the fans are located inside the first and second housings, and the air outlets of the fans correspond to the air outlets.

[0010] The beneficial effects of this utility model are as follows: By integrating charging and discharging functions into the neck fan, it can charge portable electronic devices such as mobile phones and wireless headphones outdoors, breaking through the limitation of traditional neck fans in single heat dissipation, expanding the application scenarios, improving the product's adaptability to outdoor power assistance needs, enhancing practicality and functionality, and better meeting the diverse needs of users in mobile scenarios. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the disassembled structure of this utility model;

[0012] Figure 2 This is a structural schematic diagram of the present invention from the front view after assembly;

[0013] Figure 3 This is a structural schematic diagram of the present invention from the rear view after assembly;

[0014] Figure 4 This is a half-sectional view and a schematic diagram of the airflow path after assembly of this utility model;

[0015] Figure 5 This is a schematic diagram of the structure of the Bluetooth earphone storage device of this utility model;

[0016] Figure 6 This is a schematic diagram of the structure of the Bluetooth headset according to the present invention.

[0017] In the diagram: 1. Deformable connector; 101. Spring; 2. First housing; 201. Power switch; 3. Second housing; 4. Rechargeable battery; 5. Charging circuit board; 6. Discharging circuit board; 7. Charging interface; 701. Charging indicator light; 8. Discharging interface; 801. Discharging indicator light; 9. Air inlet; 10. Air outlet; 11. Fan; 12. Bluetooth headset. Detailed Implementation Example 1

[0018] Reference Figure 1-4 The present invention discloses a rechargeable and discharging neck fan, which mainly consists of a deformable connector 1, a first housing 2, a second housing 3, a rechargeable battery 4, a charging circuit board 5, a discharging circuit board 6, a charging interface 7, a discharging interface 8, an air inlet 9, an air outlet 10, and a fan 11, as detailed below:

[0019] The top ends of the first shell 2 and the second shell 3 are connected by a deformable connector 1. The deformable connector 1 is made of silicone or TPU material. A spring piece 101 is fixedly installed inside the deformable connector 1. The spring piece 101 is used to provide elastic support so that the first shell 2 and the second shell 3 can be bent and reset through the deformable connector 1 to adapt to different users' neck sizes and wearing needs.

[0020] There are two sets of rechargeable batteries 4, which are connected in series and installed inside the first housing 2 and the second housing 3 respectively. The rechargeable batteries 4 are lithium batteries, such as 18650 cylindrical lithium batteries or polymer lithium batteries, with a capacity of 2000mAh to 5000mAh and supporting a rated voltage output of 3.7V.

[0021] The charging circuit board 5 is fixed inside the first housing 2, responsible for charging the lithium battery 4, and integrates the charging interface 7 and the charging indicator light 701.

[0022] The discharge circuit board 6 is fixed inside the second housing 3 and is responsible for outputting the power of the lithium battery 4 to external devices, such as mobile phones, wireless headphones and other portable electronic devices. It also integrates the discharge interface 8 and the discharge indicator light 801.

[0023] A fan 11, which is a brushless DC motor, is installed inside the first housing 2 and the second housing 3. The air inlet 9 is located inside the first housing 2 and the second housing 3 and is a strip grid to prevent foreign objects from entering. The air outlet 10 is located on the front side of the first housing 2 and the second housing 3 and is a honeycomb grid to guide the airflow direction.

[0024] A switch 201 is embedded in the side of the first housing 2. A contact switch is also integrated on the charging circuit board 5. The contact switch corresponds to the switch 201. The switch 201 is used to control the start and stop of the fan 11 by pressing the contact switch.

[0025] The first housing 2 and the second housing 3 are made of ABS or PC material with a frosted surface, which is non-slip and wear-resistant. The lithium battery 4, charging circuit board 5, discharging circuit board 6 and fan 11 are fixed inside by buckles or screws. The reserved openings on the back of the first housing 2 and the second housing 3 are used to expose the charging interface 7, the discharging interface 8, the charging indicator light 701 and the discharging indicator light 801.

[0026] The charging port 7 and discharging port 8 use USB-C, Micro-USB or Lightning interfaces. The charging indicator 701 and discharging indicator 801 are LED lights, and the charging and discharging status is distinguished by different colors or flashing frequencies. The charging indicator 701 is solid red when charging and solid green when fully charged; the discharging indicator 801 is solid blue when discharging and off when there is no output.

[0027] The charging circuit board 5 consists of a charging chip (such as TP4056), an input interface (USB-C / Micro-USB / Lightning), a charging indicator light 701, and a battery protection circuit. Its circuit connection is as follows: the power pin (VBUS) of the input interface is connected to the VCC pin of the charging chip through a current-limiting resistor; the BAT pin of the charging chip is connected to the positive terminal of the lithium battery 4; the GND pin is connected to the negative terminal of the lithium battery 4; the positive terminal of the charging indicator light 701 is connected to the charging status pin (CHRG) and the fully charged status pin (STDBY) of the charging chip through a resistor; and the negative terminal is grounded, so as to indicate the charging process by the red / green light being constantly on or off.

[0028] The discharge circuit board 6 consists of a boost chip (such as MT3608), an output interface (USB-A), a discharge indicator 801, and a fast charging protocol chip (such as FP6601Q). Its circuit connection is as follows: the positive terminal of the lithium battery 4 is connected to the input pin (VIN) of the boost chip through a switch. The output pin (SW) of the boost chip is connected to an inductor and a diode to output 5V to the VBUS pin of the USB-A interface. The positive terminal of the discharge indicator 801 is connected to the VBUS pin of the USB-A interface through a resistor, and the negative terminal is grounded. The CC pin of the fast charging protocol chip is connected to the CC pin of the USB-A interface to realize PD / QC protocol communication. At the same time, the discharge circuit board 6 and the charging circuit board 5 are isolated by an independent power management module to avoid charging and discharging conflicts and ensure that the power of the lithium battery 4 is stably output to external devices or used to power the fan 11. Example 2

[0029] Reference Figure 5-6 The present invention proposes a rechargeable and discharging neck fan. Based on the structure of embodiment 1, a Bluetooth headset 12 is added to the neck fan. The surface of the neck fan 1 is provided with a storage slot for accommodating the Bluetooth headset 12. A magnet is provided at the end of the storage slot so that it can be attracted and fixed to the metal or magnet on the Bluetooth headset 12. In order to facilitate the use of this function, a Bluetooth module is also built in, so that users can connect to their mobile phones to play music when using the neck fan.

Claims

1. A rechargeable and discharging neck fan, comprising a first housing (2) and a second housing (3), characterized in that, A rechargeable battery (4) is fixedly installed inside the first housing (2) and the second housing (3). A charging circuit board (5) is also fixedly installed inside the first housing (2), and a discharging circuit board (6) is also fixedly installed inside the second housing (3). A charging interface (7) and a discharging interface (8) are respectively integrated on the charging circuit board (5) and the discharging circuit board (6).

2. The neck fan for charging and discharging according to claim 1, characterized in that, The first housing (2) and the second housing (3) are connected by a deformable connector (1), and a spring piece (101) is fixedly installed inside the deformable connector (1).

3. The neck fan for charging and discharging according to claim 1, characterized in that, An on / off switch (201) is embedded in the side of the first housing (2), and a contact switch is also integrated on the charging circuit board (5), which corresponds to the on / off switch (201).

4. The neck fan for charging and discharging according to claim 1, characterized in that, The charging circuit board (5) and the discharging circuit board (6) are respectively equipped with a charging indicator light (701) and a discharging indicator light (801). The back of the first housing (2) and the second housing (3) are provided with several reserved openings. The charging interface (7), the discharging interface (8), the charging indicator light (701) and the discharging indicator light (801) are exposed on the outside of the first housing (2) and the second housing (3) through the reserved openings.

5. The neck fan for charging and discharging according to claim 4, characterized in that, The charging interface (7) and discharging interface (8) are of type USB-C, Micro-USB or Lightning interface, and the charging indicator (701) and discharging indicator (801) are LED lights.

6. The neck fan for charging and discharging according to claim 1, characterized in that, The first housing (2) and the second housing (3) are provided with an air inlet (9) and an air outlet (10) on their inner sides. A fan (11) is installed inside the first housing (2) and the second housing (3). The air inlet of the fan (11) is located inside the first housing (2) and the second housing (3), and the air outlet of the fan (11) corresponds to the air outlet (10).

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