Multifunctional outdoor power bank

By designing a long, cylindrical, multi-functional outdoor power bank that integrates a flexible LED light strip and a mosquito repellent pad heater, the problems of inconvenient mosquito repellent liquid and large power bank size are solved, achieving convenient mosquito repellent and lightweight portability.

CN224582929UActive Publication Date: 2026-07-31DONGGUAN HUIYAN ELECTRONICS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN HUIYAN ELECTRONICS
Filing Date
2025-09-12
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing mosquito repellent power banks have the problems of mosquito repellent liquid being inconvenient to carry and having the risk of leakage, and traditional power banks are too large to be convenient to carry outdoors.

Method used

Design a long, cylindrical, multi-functional outdoor power bank. A flexible LED light strip is spirally wound around the inner shell, and a mosquito repellent pad heater is integrated. The mosquito repellent pad is inserted into the mosquito repellent pad heater position, and is conveniently fixed with magnets and hooks. The charging interface is located on the tail cap.

Benefits of technology

It achieves good mosquito repellent effect and is easy to carry, reducing the number of items to carry and improving the convenience of outdoor activities.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a multifunctional outdoor power bank, comprising a power bank body, a flexible LED light strip, and a mosquito repellent pad heater. The power bank body includes an upper shell, a lower shell, a tail cap, an inner shell, a storage battery, a control circuit board, and a charging / discharging interface. This utility model features a reasonable structural design, employing a flexible LED light that is spirally wound around the inner shell, achieving a longer light strip length within a limited volume, effectively improving lighting performance. The mosquito repellent pad heater allows for use with solid mosquito repellent pads, eliminating the need for refilling, providing plug-and-play functionality, easy replacement, no leakage risk, and excellent mosquito repellent effect. Furthermore, this utility model has an overall elongated cylindrical shape, a compact size, and is easily portable, even handheld, effectively solving the problem of traditional square power banks taking up too much space. It integrates the most frequently needed functions for outdoor activities—lighting, mosquito repellency, and power supply—offering multiple uses in one device, reducing the number of items needed for travel, and bringing convenience to people's outdoor lives.
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Description

Technical Field

[0001] This utility model relates to the field of power bank technology, specifically to a multifunctional outdoor power bank. Background Technology

[0002] Power banks are now ubiquitous in people's lives. People usually carry one when they go out to ensure they can charge their phones anytime, anywhere. However, people are often bothered by mosquitoes in areas with many insects, so power banks with mosquito-repellent functions have emerged.

[0003] For example, utility model patent publication number "CN208690948U", entitled "A Mosquito Repellent Power Bank", discloses a mosquito repellent power bank. Its components include: a charging interface on one side of the power bank; a mounting slot and an electronic liquid tank on the power bank; a USB port at the bottom of the mounting slot; a mosquito repellent box inside the mounting slot; a rotatable USB connector at the bottom of the mosquito repellent box; a heating rod inside the electronic liquid tank; heat insulation blocks around the electronic liquid tank; and a perforated cover on the electronic liquid tank. While it can achieve a mosquito repellent effect, the mosquito repellent liquid used is not very convenient to fill and carry, and there is a risk of leakage.

[0004] To address the aforementioned issues, utility model patent CN118842124A, entitled "An Integrated Portable Power Bank with Mosquito Repellent Function," discloses an integrated portable power bank with mosquito repellent function. The power bank includes a shell, a PCB board, and a battery cell. The PCB board and battery cell are embedded within the shell. A microcontroller is mounted on the PCB board, along with a heating control circuit and a power bank control circuit connected to the microcontroller. One end of the shell has a slot for inserting a dry mosquito repellent sheet. The heating control circuit heats the dry mosquito repellent sheet, and the microcontroller controls the heating control circuit to turn on or off. While this design improves the portability and mosquito repellent effect of the power bank to some extent, its overall flat, square shape occupies a significant amount of space, making it unsuitable for outdoor use. Utility Model Content

[0005] To address the aforementioned shortcomings, the purpose of this utility model is to provide a multifunctional outdoor power bank with a reasonable structural design, compact size, and convenient outdoor carrying and use.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0007] A multifunctional outdoor power bank includes a long, cylindrical power bank body, a flexible LED light strip, and a mosquito repellent pad heater. The power bank body includes an upper shell, a lower shell, a tail cap, an inner shell, a storage battery, a control circuit board, and a charging / discharging interface. The inner shell is located inside the lower shell, and the storage battery is located inside the inner shell. The flexible LED light strip is spirally wound around the outer wall of the inner shell from top to bottom. The lower end of the upper shell is connected to the upper end of the lower shell. The mosquito repellent pad heater is located inside the upper shell, and the upper shell has a mosquito repellent pad slot for inserting the mosquito repellent pad into the heater. The tail cap closes the lower end of the lower shell, and the charging / discharging interface is located on the tail cap. The control circuit board is located at the upper end of the inner shell and is connected to the flexible LED light strip, the mosquito repellent pad heater, the storage battery, and the charging / discharging interface.

[0008] In a preferred embodiment of this invention, the mosquito repellent pad heater includes a heating element and two heat-conducting clips. The two clips are held between the two surfaces of the heating element. A window is provided in the middle of the two clips, exposing a portion of the heating element. This window allows direct radiant heat from the heating element to the mosquito repellent pad and also facilitates air circulation, improving the repellent's evaporation effect. Mounting strips are provided on the sides of the two clips, and mounting slots adapted to these strips are provided inside the upper shell. Ventilation holes are provided on the upper shell. The two heat-conducting clips are used to quickly and evenly conduct heat from the heating element to the entire contact surface of the clips, resulting in better heating of the mosquito repellent pad.

[0009] In a preferred embodiment of this invention, the number of mosquito repellent pad slots is two, corresponding to the positions of the two heat-conducting clips on the upper cylindrical shell. Users can insert the mosquito repellent pads from both sides, heating both pads simultaneously. This double-layer mosquito repellent pad emits a higher concentration of active ingredients, resulting in a stronger mosquito-repelling range and effect, making it suitable for areas with more mosquitoes or more open spaces.

[0010] As a preferred embodiment of this utility model, the outer wall of the inner cylinder shell is provided with a spiral groove for limiting the position of the flexible LED light strip. During assembly, the flexible LED light strip is embedded in the spiral groove, which ensures that the light strip is wound evenly and neatly, aesthetically pleasing, and with uniform illumination. It also effectively prevents the light strip from shifting or loosening during transportation or use, thereby improving the reliability and durability of the product.

[0011] In a preferred embodiment of this utility model, the upper and lower ends of the lower cylindrical shell are respectively provided with upper barb prongs and lower barb prongs, the lower end of the upper cylindrical shell is provided with an upper buckle that matches the upper barb prongs, and the upper end of the tail cap is provided with a lower buckle that matches the lower barb prongs. During assembly, align the upper and lower barb prongs with the upper and lower buckles and press them in. A "click" sound indicates that they are properly engaged. Assembly is simple and convenient, and the connection is firm and tight.

[0012] In a preferred embodiment of this utility model, the control circuit board includes a PCB board and a lighting switch, a mosquito repellent switch, and a power indicator light disposed on the PCB board. The upper casing has corresponding lighting and mosquito repellent buttons at their respective positions. A power indicator hole is located above the lighting and mosquito repellent buttons. A light guide is fitted onto the power indicator light, with one surface of the light guide closely attached to the power indicator hole. This improves the display clarity and aesthetics.

[0013] As a preferred embodiment of this utility model, the lighting button and the mosquito repellent button are integrated into a single structure, which is easy to manufacture and assemble, and improves production efficiency.

[0014] As a preferred embodiment of this utility model, it also includes a hanging buckle, which is disposed on the upper end surface of the upper cylindrical shell. The buckle allows it to be hung on backpacks, tents, tree branches, etc., making it convenient to carry and use.

[0015] As a preferred embodiment of this invention, it further includes a magnet disposed on the tail cap. The magnet's magnetic force allows it to be attached to any ferrous surface, such as a car body, tent frame, tool cabinet, etc., providing an extremely convenient temporary fixing solution.

[0016] The beneficial effects of this utility model are as follows: The utility model has a reasonable structural design, employing flexible LED lights spirally wound around the inner cylindrical shell, achieving a longer light strip length within a limited volume, effectively improving the lighting effect; it uses a mosquito repellent pad heater, which can be used with solid mosquito repellent pads, requiring no refilling, is plug-and-play, easy to replace, has no risk of leakage, and has a good mosquito repellent effect. Furthermore, the utility model is a long cylindrical shape, compact in size, easily portable, and even handheld, effectively solving the problem of traditional square power banks taking up too much space. It also integrates the most frequently needed functions for outdoor activities: lighting, mosquito repellency, and power supply, offering multiple uses in one item, reducing the number of items to carry, and bringing convenience to people's outdoor life.

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0020] Figure 3 This is an exploded structural diagram of the present invention.

[0021] Figure 4 This is a schematic diagram of the upper cylindrical shell in this utility model. Detailed Implementation

[0022] See Figures 1 to 4 This embodiment provides a multifunctional outdoor power bank, which includes a power bank body in the shape of a long cylindrical tube, a flexible LED light strip 1, and a mosquito repellent heater 2. The power bank body includes an upper cylindrical shell 3, a lower cylindrical shell 4, a tail cap 5, an inner cylindrical shell 6, an energy storage battery 7, a control circuit board 8, and a charging and discharging interface 9. The energy storage battery 7 is preferably a cylindrical lithium battery, such as the 18650 or 21700 model.

[0023] The inner shell 6 is disposed within the lower shell 4, and the energy storage battery 7 is located within the inner shell 6. The flexible LED light strip 1 is spirally wound around the outer wall of the inner shell 6 in a top-to-bottom order. Preferably, a spiral groove is provided on the outer wall of the inner shell 6 to limit the movement of the flexible LED light strip 1. During assembly, the flexible LED light strip 1 is embedded into the spiral groove, which ensures that the light strip is wound evenly and neatly, aesthetically pleasing, and provides uniform illumination. It also effectively prevents the light strip from shifting or loosening during transportation or use, improving the reliability and durability of the product.

[0024] The lower end of the upper cylindrical shell 3 is connected to the upper end of the lower cylindrical shell 4, and the tail cap 5 closes the lower end of the lower cylindrical shell 4. Specifically, the lower cylindrical shell 4 has upper barb pins 41 and lower barb pins 42 at its upper and lower ends, respectively. The lower end of the upper cylindrical shell 3 has an upper latch 31 that matches the upper barb pin 41, and the upper end of the tail cap 5 has a lower latch 51 that matches the lower barb pin 42. During assembly, the upper barb pins 41 and lower barb pins 42 are aligned with the upper latch 31 and lower latch 51, respectively, and pressed in. A "click" sound indicates that the parts are properly engaged. Assembly is simple and convenient, and the connection is firm and tight.

[0025] The mosquito repellent pad heater 2 is disposed inside the upper cylindrical shell 3, and the upper cylindrical shell 3 is provided with a mosquito repellent pad slot 32 for inserting the mosquito repellent pad into the mosquito repellent pad heater 2. Specifically, the mosquito repellent pad heater 2 includes a heating element 21 and two heat-conducting clamps 22. The two heat-conducting clamps 22 clamp the two surfaces of the heating element 21. The middle of the two heat-conducting clamps 22 is provided with a window 221 that exposes part of the heating element 21. The window 221 allows the direct radiant heat from the heating element 21 to the mosquito repellent pad, and also facilitates air circulation to improve the evaporation effect of the mosquito repellent pad. Preferably, a ventilation groove 222 communicating with the window 221 is also provided on the clamping surface where the heat-conducting clamps 22 contact the heating element 21, which is further conducive to air convection. The two heat-conducting clips 22 are provided with mounting strips 223 on their sides. The upper cylindrical shell 3 has mounting slots 33 that mate with the mounting strips 223, and a vent 34 is provided on the upper cylindrical shell 3. The two heat-conducting clips 22 are used to quickly and evenly conduct the heat from the heating element 21 to the entire contact surface of the heat-conducting clips, thus better heating the mosquito repellent pad. Preferably, there are two mosquito repellent pad slots 32, positioned on the upper cylindrical shell 3 corresponding to the positions of the two heat-conducting clips 22. Users can insert the mosquito repellent pads from both sides, and both pads will fit tightly against the contact surface of the heat-conducting clips 22, heating both pads simultaneously. This double-strength mosquito repellent pad has a higher concentration of active ingredients, resulting in a stronger mosquito-repelling range and effect, making it suitable for areas with more mosquitoes or more open areas.

[0026] The charging / discharging interface 9 is located on the tail cap 5. The control circuit board 8 is located at the upper end of the inner shell 6. The control circuit board 8 includes a PCB board 81 and a lighting switch 82, a mosquito repellent switch 83, and a power indicator light 84 mounted on the PCB board 81. A lighting button 85 and a mosquito repellent button 86 are correspondingly located on the upper shell 3 at the positions of the lighting switch 82 and the mosquito repellent switch 83. Preferably, the lighting button 85 and the mosquito repellent button 86 are integrally connected, facilitating manufacturing and assembly and improving production efficiency. A power indicator hole 35 is located above the lighting button 85 and the mosquito repellent button 86 on the upper shell 3. A light guide seat 85 is fitted onto the power indicator light 84, with one surface of the light guide seat 85 in close contact with the power indicator hole 35. This improves the display clarity and aesthetics.

[0027] The control circuit board 8 is connected to the flexible LED light strip 1, the mosquito repellent heater 2, the energy storage battery 7, and the charging / discharging interface 9, respectively. The charging / discharging interface 9 is preferably a USB-C interface. The PCB board 81 integrates an LED driving circuit, a mosquito repellent heating control circuit, and a charging / discharging management circuit, which are used to control the lighting function of the flexible LED light strip 1, the heating function of the mosquito repellent heater 2, and the charging / discharging function of the energy storage battery 7, respectively.

[0028] For ease of use, a hanging buckle 10 can be provided on the upper end face of the upper cylindrical shell 3, which can be used to hang it on backpacks, tents, tree branches, etc., making it convenient to carry and use. In other embodiments, a magnet can also be provided on the tail cap 5, which can be used to attract to any ferrous surface, such as car body, tent frame, tool cabinet, etc., providing an extremely convenient temporary fixing solution.

[0029] This utility model is long and cylindrical in shape, small in size, easy to carry, and even hold in the hand. It effectively solves the problem of traditional square power banks taking up a lot of space. It also integrates the most needed functions for outdoor activities, such as lighting, mosquito repellent, and power supply. It is multi-functional, reduces the number of items to carry when traveling, and brings convenience to people's outdoor life.

[0030] When lighting is needed, press the lighting button 85 to activate the lighting switch 82, which will illuminate the flexible LED light strip 1 through the LED driver circuit. Since the flexible LED light strip 1 is spirally wound and has a long length, it has a wide lighting range and high brightness.

[0031] When the mosquito repellent function is needed, press the mosquito repellent button 86 to activate the mosquito repellent switch 83. The heating control circuit of the mosquito repellent sheet will connect the working circuit of the heating element, and the heating element will heat up quickly to heat the mosquito repellent sheet. Moreover, two mosquito repellent sheets can be inserted to further enhance the mosquito repellent range and effect.

[0032] When the charging function is needed, insert the charging cable of the device to be charged into the charging / discharging interface 9. The charging / discharging management circuit detects the load and outputs power to the device to be charged. Conversely, when the energy storage battery 7 inside this invention needs to be charged, insert the charger's charging cable into the charging / discharging interface 9. The charging / discharging management circuit recognizes the external power source, shuts off the output, and charges the energy storage battery 7.

[0033] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above, and any obvious improvements, substitutions, or modifications made by those skilled in the art based on this utility model are within the protection scope of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model. Power banks with other structures obtained using the same or similar structures as described in the above embodiments of this utility model are all within the protection scope of this utility model.

Claims

1. A multifunctional outdoor power bank, comprising a power bank body in the shape of a long cylindrical tube, characterized in that: It also includes a flexible LED light strip and a mosquito repellent pad heater. The power bank body includes an upper shell, a lower shell, a tail cap, an inner shell, a storage battery, a control circuit board, and a charging / discharging interface. The inner shell is disposed inside the lower shell, and the storage battery is located inside the inner shell. The flexible LED light strip is spirally wound around the outer wall of the inner shell from top to bottom. The lower end of the upper shell is connected to the upper end of the lower shell. The mosquito repellent pad heater is disposed inside the upper shell, and the upper shell has a mosquito repellent pad slot for inserting the mosquito repellent pad into the mosquito repellent pad heater. The tail cap is closed at the lower end of the lower shell, and the charging / discharging interface is disposed on the tail cap. The control circuit board is disposed at the upper end of the inner shell and is connected to the flexible LED light strip, the mosquito repellent pad heater, the storage battery, and the charging / discharging interface, respectively.

2. The multifunctional outdoor power bank according to claim 1, characterized in that, The mosquito repellent pad heater includes a heating element and two heat-conducting clamps. The two heat-conducting clamps are held between the two surfaces of the heating element. A window is provided in the middle of the two heat-conducting clamps to expose part of the heating element. An installation strip is provided on the side of the two heat-conducting clamps. An installation slot adapted to the installation strip is provided inside the upper cylinder shell. A vent hole is provided on the upper cylinder shell.

3. The multifunctional outdoor power bank according to claim 2, characterized in that, The number of mosquito repellent pad slots is two, and the positions of the two heat-conducting clips are set on the upper cylinder shell.

4. The multifunctional outdoor power bank according to claim 1, characterized in that, The outer wall of the inner cylinder shell is provided with a spiral groove to limit the movement of the flexible LED light strip.

5. The multifunctional outdoor power bank according to claim 1, characterized in that, The lower cylinder shell is provided with an upper barb and a lower barb respectively at its upper and lower ends. The lower end of the upper cylinder shell is provided with an upper buckle that matches the upper barb and the upper end of the tail cap is provided with a lower buckle that matches the lower barb.

6. The multifunctional outdoor power bank according to claim 1, characterized in that, The control circuit board includes a PCB board and a lighting switch, a mosquito repellent switch and a power indicator light disposed on the PCB board. The upper shell is provided with lighting buttons and mosquito repellent buttons corresponding to the positions of the lighting switch and the mosquito repellent switch. A power indicator hole is provided above the lighting button and the mosquito repellent button. A light guide seat is fitted on the power indicator light, and one surface of the light guide seat is in close contact with the power indicator hole.

7. The multifunctional outdoor power bank according to claim 6, characterized in that, The lighting button and the mosquito repellent button are integrated into one unit.

8. The multifunctional outdoor power bank according to any one of claims 1-7, characterized in that, It also includes a lifting buckle, which is disposed on the upper end face of the upper cylinder shell.

9. The multifunctional outdoor power bank according to any one of claims 1-7, characterized in that, It also includes a magnet, which is disposed on the tail cap.