Photovoltaic wind power integrated ventilation fan
The photovoltaic-wind power integrated ventilation fan, which combines photovoltaic power generation components and a vertical axis wind turbine, solves the problem that ventilation fans cannot work in windless or cloudy weather, achieving all-weather ventilation and exhaust effects, extending service life and saving energy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 焦保民
- Filing Date
- 2025-02-20
- Publication Date
- 2026-06-26
AI Technical Summary
Existing ventilation fans cannot work properly when there is no wind or it is cloudy, resulting in poor ventilation and exhaust effects. Furthermore, existing photovoltaic-driven ventilation fans cannot work on cloudy days or at night.
The photovoltaic and wind power integrated system consists of photovoltaic power generation modules, a vertical axis wind turbine, a battery, and control electrical appliances. It combines vertical blades and a windmill-style impeller, utilizes a wind turbine and permanent magnet rings to improve starting performance, and stores electrical energy in the battery for use at night or when there is no wind.
The ventilation fan has been made capable of continuous operation under various weather conditions, improving its start-up performance in light winds, extending its service life and saving energy.
Smart Images

Figure CN224413907U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of ventilation and exhaust fan technology, and relates to the use of photovoltaic power generation combined with wind power generation, specifically a photovoltaic and wind power integrated ventilation and exhaust fan. Background Technology
[0002] Among ventilation fans, those that can produce ventilation without requiring an external power source are relatively few. One type is a non-powered, wind-driven roof ventilator that rotates under wind power to generate ventilation and exhaust, achieving energy savings. However, the number of windy days each year is less than the number of windless days, significantly reducing its effectiveness. Another type uses photovoltaic power generation modules to drive a motor, but it cannot provide ventilation on cloudy days or at night. Summary of the Invention
[0003] The photovoltaic and wind power integrated ventilation fan of this utility model is composed of photovoltaic power generation components, vertical axis wind turbine generator, storage battery, control electrical appliances, and ventilation fan. Its feature is that the vertical axis wind turbine generator is covered under the photovoltaic power generation components which are made into a sloping roof-shaped rain cover. The vertical axis wind turbine generator is installed on a funnel-shaped base, and the ventilation fan is installed in this base.
[0004] The sloping roof-shaped rain cover is equipped with a storage battery and control electrical appliances. The storage battery can store the electricity generated by the photovoltaic power generation module on sunny days, as well as the electricity generated by the vertical axis wind turbine on windy days, so that the ventilation fan can be used on cloudy days, at night, or on windless days, thereby increasing the working efficiency of the ventilation fan.
[0005] The control electrical appliance can be set to the cycle time for the ventilation fan to start and stop according to different user needs. It can be set to start during the day and stop at night, or different intervals and cycles of starting and stopping within 24 hours. This can save energy, extend the operating time of the ventilation fan, and extend the cumulative service life of the ventilation fan.
[0006] Below the vertical blades of the vertical axis wind turbine, a windmill-style impeller is horizontally mounted and integrated with the vertical blades. When the ventilation fan installed in the funnel-shaped base operates, the exhaust air passes through the windmill-style impeller, driving it to rotate and thus improving the starting performance of the vertical axis wind turbine in light winds. When the natural wind force is strong, the vertical blades drive the windmill-style impeller to rotate, also producing a ventilation and exhaust effect.
[0007] The generator driven by the vertical blades of the vertical axis wind turbine is a coreless permanent magnet brushless generator. This coreless structure means that there is no iron core resistance around the permanent magnet of the generator that rotates with the vertical blades, which significantly improves the starting performance of the vertical axis wind turbine under low wind conditions.
[0008] The vertical axis wind turbine has a windmill-shaped impeller integrated with the vertical blades below it. Between the impeller and the vertical axis on the funnel-shaped base, there are two permanent magnet rings with the same polarity and repulsion. The upper permanent magnet ring is connected to the windmill-shaped impeller, and the lower permanent magnet ring is installed on the vertical axis. By adjusting the magnetic field strength of the permanent magnet rings, the vertical blades and the generator are suspended together. The magnetic repulsion force cancels out the gravity of the rotating parts of the vertical axis wind turbine, further improving the starting performance of the vertical axis wind turbine under low wind conditions.
[0009] The device for adjusting the magnetic field strength of the permanent magnet ring is a magnetic short-circuit device.
[0010] When the natural wind force is strong, the vertical axis wind turbine can also generate ventilation by making the windmill-type impeller. The speed signal of the generator triggers the control electrical appliances to shut down the operation of the ventilation fan, which can save the energy stored in the battery and extend the cumulative service life of the ventilation fan.
[0011] This photovoltaic and wind power integrated ventilation fan uses photovoltaic power generation combined with wind power generation, with batteries storing and providing electricity to drive the operation of the ventilation fan. It can be installed independently in places that require ventilation without an external power source, achieving energy saving and ventilation effects. Attached Figure Description
[0012] This utility model will be specifically described through embodiments and with reference to the accompanying drawings, wherein:
[0013] Figure 1 This is a structural schematic diagram of the photovoltaic-wind power integrated ventilation fan of this utility model;
[0014] Figure 2 This is a three-dimensional structural diagram of the photovoltaic-wind power integrated ventilation fan of this utility model. Detailed Implementation
[0015] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The embodiments described below are only used to explain the present invention and are not intended to limit the present invention.
[0016] Figure 1In this structure, the photovoltaic power generation module 1 serves as the sloping roof of the sloping roof-shaped rain cover 6, covering the vertical axis wind turbine 2. The vertical axis wind turbine 2 is mounted on top of the funnel-shaped base 7. Inside the funnel-shaped base 7, a ventilation fan 5 is installed. Inside the sloping roof rain cover 6, a storage battery 3 and control electrical appliances 4 are installed. A windmill-type impeller 9 is connected and installed below the vertical blades 8 of the vertical axis wind turbine 2. Above the vertical blades 8, the wind turbine 10 is driven. Between the center of the windmill-type impeller 9 and the vertical axis 11 of the funnel-shaped base 7, two permanent magnet rings 12 are installed. On the lower permanent magnet ring, there is a magnetic short circuit 13.
[0017] Figure 2 yes Figure 1 The diagram shows the three-dimensional structure of this photovoltaic-wind power integrated ventilation fan, which concisely displays its structural appearance.
Claims
1. A photovoltaic-wind power integrated ventilation fan, comprising a photovoltaic power generation module (1), a vertical axis wind turbine generator (2), a battery (3), control electrical components (4), and a ventilation fan (5), characterized in that: Under the photovoltaic power generation module (1) which is made into a sloping roof-shaped rain cover (6), a vertical axis wind turbine (2) is covered. The vertical axis wind turbine (2) is mounted on a funnel-shaped base (7), and a ventilation fan (5) is installed inside the base (7).
2. The photovoltaic-wind power integrated ventilation fan according to claim 1, characterized in that: Inside the sloping roof-shaped rain cover (6), there is a storage battery (3) and control electrical appliances (4).
3. The photovoltaic-wind power integrated ventilation fan according to claim 2, characterized in that: The control electrical appliance (4) can set the cycle time for the ventilation fan (5) to start and stop.
4. The photovoltaic-wind power integrated ventilation fan according to claim 1, characterized in that: Below the vertical blades (8) of the vertical axis wind turbine (2), a windmill-style impeller (9) is installed horizontally.
5. The photovoltaic-wind power integrated ventilation fan according to claim 1, characterized in that: The vertical axis wind turbine (2) is a wind turbine (10) driven by vertical blades (8), which is a coreless permanent magnet brushless generator.
6. The photovoltaic-wind power integrated ventilation fan according to claim 1, characterized in that: Between the windmill-type impeller (9) of the vertical axis wind turbine (2) and the vertical axis (11) on the funnel-shaped base (7), two magnetically repulsive permanent magnet rings (12) are installed.
7. The photovoltaic-wind power integrated ventilation fan according to claim 6, characterized in that: The device for adjusting the magnetic field strength of the lower permanent magnet ring is a type of magnetic short circuit device (13).