Bottle cap fan
By introducing a soft membrane and a contact switch into the bottle cap fan, the fan's start and stop are controlled by changes in bottle pressure, solving the problem of monotonous operation of portable fans and realizing an intuitive interaction of starting the fan by squeezing the bottle, thus enhancing its entertainment and fun.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-06
- Publication Date
- 2026-03-03
AI Technical Summary
Existing portable fans have a monotonous and uninteresting operation method, and cannot be controlled by the movement of the bottle, resulting in a disjointed operation.
Design a bottle cap fan that uses a soft membrane and a contact switch inside the bottle to control the fan's start and stop by adjusting the pressure on the bottle, achieving an intuitive interaction of starting the fan by squeezing the bottle.
It enhances the entertainment and fun of operation, allowing users to directly control the fan's start and stop through bottle movements. This caters to the creative and individual needs of young people and is suitable for cultural and creative products as well as personalized consumer products.
Smart Images

Figure CN223964637U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of portable daily necessities technology, specifically a bottle cap fan assembly structure that can be used in conjunction with a bottle body and whose start and stop can be controlled by pressing the bottle body. Background Technology
[0002] Most existing portable fans adopt an independent grip design and are controlled via physical buttons or touch switches. These products offer a monotonous and uninteresting operation experience, failing to provide a novel human-computer interaction experience.
[0003] The closest existing technology found to this application is a fan-equipped adhesive (CN201895832), which combines a bottle (for containing the adhesive) with a fan. A miniature fan is installed inside the base of the bottle. The purpose of this fan-equipped adhesive is to accelerate the drying speed of the adhesive by blowing air. This fan-equipped adhesive aims to speed up adhesive curing, and its fan is a production auxiliary tool, representing a simple assembly of the fan and the bottle.
[0004] It should be further noted that, regarding the technical solution of this application, this application is not a simple combination of conventional technologies, for the following reasons:
[0005] If you simply connect a "water bottle" and a "fan" together, the control still relies on manually operating the fan's switch, rather than controlling the fan through the movement of the bottle. This results in a poor interactive experience and a feeling of disjointed operation. Utility Model Content
[0006] To address the limitations of existing fan operation methods, which are monotonous and cannot be controlled by bottle movement, a bottle cap fan is provided that controls start and stop by changes in bottle pressure.
[0007] To achieve the above objectives, the technical solution of this utility model is: a bottle cap fan, characterized in that it comprises:
[0008] The shell has a cap portion formed at its lower part for connection with the bottle body;
[0009] A fan is located on the upper part of the housing;
[0010] The battery, installed inside the casing, powers the fan.
[0011] A contact switch is used to control the start and stop of the fan;
[0012] A soft membrane is disposed inside the bottle cap portion and located below the contact switch;
[0013] When the bottle is pressed, the pressure change inside the bottle or the bottle deforms, causing the soft membrane to deform upwards under pressure, which in turn contacts the contact switch and turns on the fan. When the bottle is released, the soft membrane returns to its original position, the contact switch turns off, and the fan stops working.
[0014] Using the above technical solution, when the bottle is pressed, the internal air pressure increases, pushing the soft membrane upwards and triggering a contact switch to activate the fan. When the bottle is released, the soft membrane returns to its original position, the contact switch disengages, and the fan stops. Therefore, when this bottle cap fan is connected to the bottle body, the pressure change caused by pressing or releasing the bottle controls the fan's operation, achieving an intuitive interaction where the bottle's squeezing action directly triggers the fan. This makes operation less monotonous, more stress-relieving, and enhances entertainment and fun, better aligning with the younger generation's pursuit of creativity, individuality, and novel experiences.
[0015] This technical solution transforms a fan into a household and entertainment device, achieving a cooling function for the human body through an innovative bottle cap structure. This application utilizes a soft membrane pressure transmission mechanism to transform the ordinary bottle body from a simple container into a control actuator. This approach, which transforms everyday knowledge (squeezing the bottle to deform it) into a trigger switch, is not merely a simple structural assembly, but rather solves the technical blind spot of how to involve the bottle body in control.
[0016] Furthermore, a duct is formed on the upper part of the housing; the fan is installed inside the duct.
[0017] Furthermore, the fan includes a motor and fan blades.
[0018] Furthermore, the bottle cap portion has a standard internal thread; the soft membrane is disposed at the top end of the bottle cap portion.
[0019] Furthermore, the bottle cap portion is tubular in shape.
[0020] Furthermore, two mesh covers are provided at each end of the air duct.
[0021] Furthermore, a charging circuit board is installed inside the housing, and a charging port is integrated on the charging circuit board.
[0022] Furthermore, it also includes a manual switch; this manual switch is connected in parallel with the contact switch circuit.
[0023] The beneficial effects of this utility model are:
[0024] First, this utility model can be used as a bottle cap fan with a novel structure and unique operation. It controls the start and stop of the fan by changing the pressure of the bottle, so as to achieve the unique experience of "squeezing the bottle to blow air". The bottle cap fan can be used as a cultural and creative product (decorative item) or toy. At the same time, it can be used to cool down and prevent heatstroke by squeezing the bottle in hot weather. It can be used as a creative or fun toy product. At the same time, it makes the operation less monotonous, very stress-relieving, and enhances the entertainment and fun, which is more in line with the pursuit of creativity, individuality and novelty by young people.
[0025] Secondly, this utility model can turn an ordinary water bottle into an interactive fan. It is original and unique, combining practicality and fun. It is very suitable as a cultural and creative product and a personalized consumer product. At the same time, because the bottle body and the cap are detachable due to the threaded fit, the bottle body can be replaced at will and can be freely and flexibly combined according to preferences.
[0026] Third, this utility model differs from the simple "bottle cap + fan" splicing. Through the combination of soft film and contact switch linkage, the squeezing action of the bottle body can be converted into an electrical signal to realize contactless control of "squeeze the bottle to start". The interaction of squeezing the bottle to decompress enhances the entertainment value. The blowing operation can be completed by holding the bottle with one hand.
[0027] Fourth, the bottle cap of this utility model has a compact structure that highly integrates the power supply, control and air supply systems within the shell space. It integrates the air duct, circuit and triggering mechanism (soft diaphragm + contact switch) three systems in a limited space to ensure that structural strength and sealing performance coexist.
[0028] Fifth, this utility model has an integrated charging circuit board with a charging port inside the housing, which can charge the battery through the charging port. It is reusable and convenient to charge.
[0029] Sixth, this utility model can be turned on by a manual switch to control the fan to work continuously, adding a mode that can work continuously without pressing the bottle body, such as continuously blowing air in hot weather, thus making the fan's working mode flexible to choose. Attached Figure Description
[0030] Figure 1 This is a cross-sectional view of a bottle cap fan connected to the bottle body N in this utility model.
[0031] Figure 2 yes Figure 1 Enlarged view of point A in the middle.
[0032] Figure 3 yes Figure 2 Enlarged view of point C (in normal or reset state).
[0033] Figure 4 yes Figure 2 Enlarged view of point C (when energized).
[0034] Figure 5 This is a perspective view of a bottle cap fan connected to the bottle body N in this utility model.
[0035] Figure 6 yes Figure 5 Enlarged view of section B in the middle.
[0036] Figure 7 This is a sectional perspective view of a bottle cap fan according to this utility model.
[0037] Figure 8-9 This is an exploded view of a bottle cap fan according to this utility model.
[0038] Figure 10 This is a circuit diagram of a bottle cap fan in the present invention when the fan is not working under normal conditions (or when the soft membrane is reset).
[0039] Figure 11 This is a circuit diagram of a bottle cap fan in this utility model, which is powered on and the fan rotates when the bottle is pressed.
[0040] Figure 12 This is a circuit diagram of a bottle cap fan in the present invention, which is powered on and the fan rotates after the manual switch is pressed (normally open mode). Detailed Implementation
[0041] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0042] Example 1: See also Figure 1-9 A bottle cap fan, comprising:
[0043] The housing 1 has a cap portion 1-1 formed at its lower part for connection with the bottle body N, and a duct 1-2 formed at its upper part; it can be made of plastic. Specifically, the bottle body N is the body N of a water bottle or beverage bottle (generally made of plastic), the upper end of the bottle body N has an externally threaded tube opening, and the cap portion 1-1 is threadedly engaged with the externally threaded tube opening at the upper end of the bottle body N, and can be tightened or unscrewed by rotation;
[0044] Fan 2 is installed inside the air duct 1-2 and includes motor 2-1 and fan blades 2-2; when the motor 2-1 is working, it drives the fan blades 2-2 to move, thereby generating airflow in the air duct 1-2.
[0045] Battery 3, located in the inner cavity 1-3 of housing 1, supplies power to fan 2; specifically, it can be designed as a replaceable battery (e.g., a removable battery cover is provided on housing 1) or rechargeable (adding a charging circuit board and charging port).
[0046] Contact switch 4 is used to control the on / off state of the fan operating circuit; that is, to control the start and stop of the fan 2.
[0047] The soft membrane 5 is sealed and embedded or fixed inside the top of the bottle cap, located below the contact switch 4, and can be made of silicone.
[0048] Specifically, the bottle cap is tubular, and a hole is provided at the top of the bottle cap. The cross-section of the hole is completely sealed by the soft membrane 5. This prevents water entering the bottle cap from entering the inner cavity 1-3 and the air duct 1-2, thus protecting the battery, circuit board, and fan located above.
[0049] When the bottle body N is pressed, the pressure change inside the bottle or the deformation of the bottle body causes the soft membrane 5 to deform upward under pressure, thereby contacting the contact switch 4 to conduct (see [reference]). Figure 4 and Figure 11 The fan 2 starts working.
[0050] When the bottle body N is released, the soft membrane 5 resets, and the contact switch 4 disconnects (see [reference]). Figure 1-3 and Figure 10 The fan 2 stops working.
[0051] Its working mechanism is as follows:
[0052] When the bottle body (such as an empty plastic water bottle) is pressed, the air pressure inside the bottle increases, pushing the soft membrane upwards and triggering the contact switch to turn on, and the fan starts running; when the bottle is released, the soft membrane returns to its original position, the contact switch turns off, and the fan stops.
[0053] When the bottle is pressed (such as a plastic water bottle filled with a large amount of water or full of water), the bottle body deforms, causing the water pressure inside the bottle to increase and squeeze the soft membrane upward, triggering the contact switch to conduct and the fan to run; when the bottle is released, the soft membrane returns to its original position, the contact switch is disconnected, and the fan stops.
[0054] As a specific embodiment of the contact switch, the contact switch has a contact piece 4-1, and the upper surface of the flexible diaphragm is provided with contacts 4-2 (multiple contacts can be provided). When the flexible diaphragm bulges upward, the contacts 4-2 contact the contact piece 4-1 to achieve conduction (see [reference]). Figure 4 and Figure 11 Fan 2 starts working. When the soft membrane 5 is in its normal (reset) state, the contact head 4-2 is not in contact with the contact piece 4-1 (see [reference]). Figure 1-3 and Figure 10 ( ), which means they are disconnected from each other, and fan 2 stops working.
[0055] See also Figure 2 In this embodiment, the fan 2 includes a motor 2-1 and fan blades 2-2. The air duct 1-2 has a through air channel 100, and the fan 2 is installed in the air channel 100.
[0056] Specifically, see Figure 7-9The air duct 100 is provided with a bracket 2-3 for fixing the motor 2-1.
[0057] See also Figure 7-9 Furthermore, two mesh covers 8 are fixedly installed at both ends of the air duct 1-2. These covers provide protection and prevent hands from reaching into the air duct 1-2 and touching the fan blades 2-2. Specifically, the two mesh covers 8 are detachably fixed at both ends of the air duct 1-2, and their detachability facilitates the assembly of the motor 2-2 and the fan blades 2-2 during production.
[0058] See also Figure 8-9 Furthermore, the air duct 1-2 is detachably connected and fixed by two half-air ducts 1-21, such as by threaded connection or snap-fit connection. This facilitates the assembly of batteries, circuit boards, and wiring inside the air duct 1-2.
[0059] See also Figure 1-2 and Figure 7 Furthermore, the bottle cap portion 1-1 has a standard internal thread 1-11 and serves as a standard threaded interface (refer to GB / T 14803); see also Figure 1-2 and Figure 7 The soft membrane 5 is fixedly installed at the top inner part of the bottle cap 1-1. The bottle cap 1-1 is tubular in shape.
[0060] The operation process of this embodiment one can be as follows:
[0061] S10. Screw the cap tightly onto the bottle containing water (see below). Figure 1 and Figure 4 );
[0062] S20. Squeeze the bottle firmly → the water inside the bottle is pressed up, pushing the soft membrane upwards → triggering the contact switch to conduct → the fan starts to blow air (see also...). Figure 4 and Figure 11 );
[0063] S30, Release the bottle body → Soft membrane springs back to its original position → Contact switch disconnects → Fan stops (see also...) Figure 1-3 and Figure 10 ).
[0064] The product in this embodiment also has the following characteristics:
[0065] Innovative Interaction: The bottle can be turned into a "switch"; squeezing the bottle will turn the fan on and off, making operation and decompression fun.
[0066] Wide compatibility: Adapts to various beverage bottles via standard threaded interfaces, enabling resource reuse;
[0067] Convenient and practical: The battery is installed inside the housing 1 on the bottle cap fan, which is safely separated from the bottle body and protected by an insulating membrane, preventing water from entering and making it very safe;
[0068] Cultural and creative attributes: The unique operation method of squeezing the bottle body is conducive to meeting the needs of personalized consumption and cultural and creative products.
[0069] Compared to existing fan-integrated adhesives (publication number CN201895832), the product of this patent application transforms the fan into a household and entertainment device, achieving a cooling function for the human body through an innovative bottle cap structure. This application utilizes a soft membrane pressure transmission mechanism to transform the general-purpose bottle body from a simple container into a control actuator. This approach, which transforms common sense (squeezing the bottle to deform it) into a trigger switch, is not merely a simple structural assembly, but rather solves the technical blind spot of how to involve the bottle body in control.
[0070] Example 2: This example is basically the same as Example 1, except that:
[0071] See also Figure 6 and Figure 7-9 Furthermore, a charging circuit board 7 is installed inside the housing 1, and a charging port 7-1 is integrated on the charging circuit board 7. This allows the battery to be charged through the charging port 7-1, enabling reusability and convenient charging.
[0072] Specifically, the charging circuit board 7 can be a TP4056 model.
[0073] In other embodiments, the charging circuit board 7 may be an existing charging circuit (or charging module), and is not limited to the above-described model.
[0074] Furthermore, it also includes a manual switch 7-2, which is connected in parallel with the contact switch 4 circuit. That is, when the manual switch is toggled, it can be locked in a normally open mode (always on) for continuous air supply, as can be seen in [reference needed]. Figure 12 .
[0075] Specifically, the manual switch 7-2 can be of model KAN8540.
[0076] In other embodiments, the manual switch 7-2 may be an existing switch (press or touch), and is not limited to the model described above.
[0077] This embodiment adds a charging circuit board 7, and the charging port can be the same as the mobile phone charging connector, such as a Type-C interface 7-1.
[0078] Additionally, a manual switch 6 can be set. This allows the fan to operate continuously without pressing the bottle, adding a mode that enables flexible operation. The dual control option—manual switch mode—expands the application scenarios.
[0079] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A bottle cap fan, characterized in that, include: The shell (1) has a cap portion (1-1) formed at its lower part for connection with the bottle body (N). A fan (2) is disposed on the upper part of the housing (1); The battery (3) is installed inside the housing (1) and is used to power the fan (2); Contact switch (4) is used to control the start and stop of the fan (2); A soft membrane (5) is disposed inside the bottle cap portion (1-1) and located below the contact switch (4); When the bottle body (N) is pressed, the pressure inside the bottle body changes or the bottle body deforms, causing the soft membrane (5) to be deformed upward under pressure, thereby touching the contact switch (4) to conduct, and the fan (2) starts to work; When the bottle body (N) is released, the soft membrane (5) resets, the contact switch (4) disconnects, and the fan (2) stops working.
2. The bottle cap fan as described in claim 1, characterized in that: The upper part of the housing (1) is formed with a wind duct (1-2); the fan (2) is installed inside the wind duct (1-2).
3. A bottle cap fan as described in claim 1 or 2, characterized in that: The fan (2) includes a motor (2-1) and fan blades (2-2).
4. A bottle cap fan as described in claim 1, characterized in that: The bottle cap portion (1-1) has a standard internal thread (1-11); the soft membrane (5) is provided at the top of the bottle cap portion (1-1).
5. A bottle cap fan as described in claim 1 or 4, characterized in that: The bottle cap portion (1-1) is tubular in shape.
6. A bottle cap fan as described in claim 2, characterized in that: Two mesh covers (8) are respectively installed at both ends of the air duct (1-2).
7. A bottle cap fan as described in claim 1, characterized in that: The housing (1) is equipped with a charging circuit board (7); the charging circuit board (7) has a charging port (7-1) integrated on it.
8. A bottle cap fan as described in claim 1 or 7, characterized in that: It also includes a manual switch (7-2); the manual switch (7-2) is connected in parallel with the contact switch (4) circuit.