Photovoltaic wind power generation integrated ventilation and exhaust fan
Through the integrated photovoltaic wind power generation exhaust fan composed of photovoltaic power generation components and vertical axis wind generators, the problem of existing exhaust fans not being able to ventilate in windless or cloudy days is solved, and the effect of independently achieving energy-saving ventilation and exhaust without external power supply is achieved.
Patent Information
- Application Number
- CN202510191797.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-04-18
AI Technical Summary
Existing exhaust fans cannot achieve ventilation and exhaust in windless or cloudy days, and there are fewer windy days that are effectively driven, resulting in a significant reduction in ventilation effect.
Photovoltaic power generation components, vertical axis wind generators, batteries and control appliances are used to form a photovoltaic wind power integrated exhaust fan. Photovoltaic power generation components generate power on sunny days, vertical axis wind turbine generates power on windy days, and battery stores electricity for use on exhaust fans on windless days.
It realizes the effect of energy saving, ventilation and exhaustion without the need for external power supply, and extends the operating time and service life of the exhaust fan.
Smart Images

Figure CN119844411A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of ventilation and exhaust fans, and relates to photovoltaic power generation combined with wind power generation, and specifically to a ventilation and exhaust fan integrated with photovoltaic and wind power generation. Background Art
[0002] Among ventilation and exhaust fan products, there are relatively few products that can produce ventilation and exhaust effects without providing an external power supply. There is a non-powered wind ball roof ventilator that can rotate under the drive of wind to produce ventilation and exhaust functions, achieving the effect of saving electricity and energy, but the number of windy days that can effectively drive this ventilation and exhaust fan is less than that of windless days each year, so the effect of this ventilation and exhaust is greatly reduced. There is also a ventilation and exhaust fan that uses a photovoltaic power generation component to drive the motor to operate, but it cannot achieve ventilation and exhaust on cloudy days and at night. Summary of the invention
[0003] The photovoltaic-wind power generation integrated ventilation and exhaust fan of the present invention is composed of a photovoltaic power generation component, a vertical axis wind turbine, a battery, a control electrical appliance, and a ventilation and exhaust fan. The characteristic is that a vertical axis wind turbine is covered under the photovoltaic power generation component which is made into a sloping roof-shaped rain cover. The vertical axis wind turbine is installed on a funnel-shaped machine base, and the ventilation and exhaust fan is installed in the machine base.
[0004] The sloping roof-shaped rain shield is equipped with a battery and a control appliance. The battery can store electricity generated by the photovoltaic power generation assembly on sunny days, and can also store electricity generated by the vertical axis wind turbine on windy days, for use by the exhaust fan on cloudy days, at night or on windless days, thereby increasing the working effect of the exhaust fan.
[0005] The control electrical appliance can set the cyclic operation time period of starting and stopping the exhaust fan according to different needs of users. It can be set to start during the day and stop at night, or it can be set to start and stop at different intervals and cycle periods within 24 hours. This can save electricity, extend the operation time of the exhaust fan, and extend the cumulative operation service life of the exhaust fan.
[0006] A windmill-type impeller is installed horizontally below the vertical blades of the vertical axis wind turbine, and is connected to the vertical blades as a whole. When the ventilation and exhaust fan installed in the funnel-shaped base is running, the exhausted air volume passes through the windmill-type impeller, which can drive the windmill-type impeller to generate rotational power, thereby improving the starting performance of the vertical axis wind turbine under light wind. When the natural wind force is strong, the vertical blades drive the windmill-type impeller to rotate, which can also produce the effect of ventilation and exhaust.
[0007] The generator driven by the vertical blades of the vertical axis wind turbine is a coreless permanent magnet brushless generator. This coreless structure ensures that there is no core resistance that can be absorbed 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 in low wind conditions.
[0008] Two upper and lower permanent magnet rings of the same polarity that repel each other are installed between the center of the windmill-type impeller that is connected as an integral whole under the vertical blades of the vertical axis wind turbine and the vertical axis on the funnel-shaped base. The upper permanent magnet ring is connected to the windmill-type impeller, and the lower permanent magnet ring is installed on the vertical axis. By means of a device for adjusting the magnetic field strength of the permanent magnet ring, the vertical blades and the generator are suspended together, and the magnetic repulsive force offsets the gravity of the rotating part of the vertical axis wind turbine, further improving the starting performance of the vertical axis wind turbine in 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 of the vertical axis wind turbine is strong and the windmill-type impeller can also produce ventilation and exhaust effects, the speed signal of the generator triggers the control electrical appliance to shut down the operation of the ventilation and exhaust fan, which can save the electric energy stored in the battery and extend the cumulative service life of the ventilation and exhaust fan.
[0011] This photovoltaic-wind-powered integrated ventilation and exhaust fan uses photovoltaic power generation combined with wind power generation, and batteries to store and provide electricity to drive the operation of the ventilation and exhaust fan. It does not require an external power supply and can be independently installed in places where ventilation and exhaust are required, achieving energy saving and ventilation and exhaust effects. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The present invention will be specifically described by way of embodiments and with reference to the accompanying drawings, in which:
[0013] Figure 1 It is a schematic structural diagram of the photovoltaic and wind power generation integrated ventilation and exhaust fan of the present invention;
[0014] Figure 2 It is a three-dimensional structural schematic diagram of the photovoltaic and wind power generation integrated ventilation and exhaust fan of the present invention. DETAILED DESCRIPTION
[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The embodiments described below are only used to explain the present invention rather than to limit the present invention.
[0016] Figure 1In the figure, the photovoltaic power generation component 1 is used as the sloping roof of the sloping roof-shaped rain shield 6, which covers the vertical axis wind turbine 2. The vertical axis wind turbine 2 is installed on the funnel-shaped base 7. The exhaust fan 5 is installed inside the funnel-shaped base 7. The battery 3 and the control electrical appliance 4 are installed inside the sloping roof rain shield 6. A windmill impeller 9 is connected and installed below the vertical blades 8 of the vertical axis wind turbine 2. The wind turbine 10 is driven above the vertical blades 8. Between the center of the windmill impeller 9 and the vertical axis 11 of the funnel-shaped base 7, two upper and lower permanent magnet rings 12 are installed, and on the lower permanent magnet ring, there is a magnetic short-circuit 13.
[0017] Figure 2 yes Figure 1 The three-dimensional structural schematic diagram can simply show the structural appearance of this photovoltaic and wind power generation integrated ventilation and exhaust fan.
Claims
1. A photovoltaic wind power generation integrated ventilation and exhaust fan, comprising a photovoltaic power generation component (1), a vertical axis wind turbine (2), a storage battery (3), a control electrical appliance (4) and a ventilation and exhaust fan (5), characterized in that: A vertical axis wind generator (2) is covered under a photovoltaic power generation assembly (1) formed into a sloping roof-shaped rain shield (6). The vertical axis wind generator (2) is installed on a funnel-shaped machine base (7), and an exhaust fan (5) is installed in the machine base (7).
2. The photovoltaic and wind power generation integrated ventilation and exhaust fan according to claim 1 is characterized in that: A storage battery (3) and a control electrical appliance (4) are installed in the inclined roof-shaped rain shield (6).
3. The photovoltaic and wind power generation integrated ventilation and exhaust fan according to claims 1 and 2 is characterized in that: The control electrical appliance (4) can set the cyclic operation time period for starting and stopping the ventilation and exhaust fans (5).
4. The photovoltaic and wind power generation integrated ventilation and exhaust fan according to claim 1, characterized in that: A windmill-type impeller (9) is horizontally installed below the vertical blades (8) of the vertical-axis wind turbine (2).
5. The photovoltaic and wind power generation integrated ventilation and exhaust fan according to claim 1, characterized in that: A wind generator (10) driven by vertical blades (8) of a vertical axis wind generator (2) is a coreless permanent magnet brushless generator.
6. The photovoltaic and wind power generation integrated ventilation and exhaust fan according to claim 1, characterized in that: Two upper and lower permanent magnet rings (12) with magnetic repulsion are installed between a windmill-type impeller (9) of a vertical-axis wind-driven generator (2) and a vertical axis (11) on a funnel-shaped machine base (7).
7. The photovoltaic and wind power generation integrated ventilation and exhaust fan according to claim 6, characterized in that: The device for adjusting the magnetic field strength of the lower permanent magnet ring is a magnetic short circuit device (13).
8. The photovoltaic and wind power generation integrated ventilation and exhaust fan according to claims 2 and 5 is characterized in that: When the natural wind force is strong, the speed signal of the wind generator (10) triggers the control electrical appliance (4) to shut down the operation of the ventilation and exhaust fan (5).