Multi-mode ventilation device

Abstract

The utility model provides a multi-mode ventilation device. The multi-mode ventilation device comprises an air cap assembly and a fan assembly in the air cap assembly. The hood assembly comprises a hood top and unpowered fan blades arranged at the lower part of the hood top; the fan assembly is arranged in the hood assembly, and the hood top is connected with a motor in the fan assembly through a push rod. According to the ventilation device, natural wind power can be used for energy-saving ventilation, powerful ventilation can be achieved by electrically driving the draught fan when necessary, the ventilation requirements under different conditions are met, and the applicability and flexibility of the ventilation device are improved.

Description

Technical Field

[0001] This utility model belongs to the field of ventilation technology, and in particular relates to a multi-mode ventilation device. Background Technology

[0002] In industrial plants, warehouses, and some large buildings, good ventilation plays a crucial role in indoor air quality, temperature regulation, and the normal operation of equipment. Traditional roof ventilators can achieve large air volumes through electric power, but they have high operating costs and are dependent on electricity supply. Powerless ventilators, on the other hand, utilize the natural wind speed to drive rotation and the principle of indoor and outdoor air convection. They require no electricity, are energy-saving and environmentally friendly, but are greatly affected by natural environmental conditions such as wind speed and direction, and may have problems such as insufficient exhaust volume.

[0003] Existing technology CN101655098B discloses a ventilator cap for a roof ventilator, comprising a first half-cap and a second half-cap. Each half-cap has an opening assist device. One end of the first half-cap is connected to one end of the second half-cap, and both half-caps are rotatably connected to a ventilator frame. The opening assist device includes a pneumatic spring rod, an assist bracket, and a support block. The assist bracket is vertically fixed to the inner wall of the half-cap. The top surface of the support block has a downward-facing groove, and the lower part of the assist bracket is located within the groove of the support block. One end of the support block is rotatably fixed to the assist bracket, and the other end is rotatably fixed to the top end of the pneumatic spring rod. The bottom end of the pneumatic spring rod is rotatably connected to the ventilator frame. The roof ventilator cap mechanism of this invention is reasonably designed, simple in structure, safe and convenient to use, and also reduces the maintenance cost of the ventilator. Utility Model Content

[0004] Traditional roof ventilators have high operating costs and rely on electricity. While non-powered ventilators are energy-efficient and environmentally friendly, their efficiency is greatly affected by natural environmental conditions such as wind speed and direction. Therefore, there is a need to design a ventilation device that can meet ventilation requirements under different operating conditions while saving electricity.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a multi-mode ventilation device, including a wind cap assembly and a fan assembly inside the wind cap assembly; the wind cap assembly includes a cap top and a non-powered fan blade disposed at the lower part of the cap top; the fan assembly is disposed inside the wind cap assembly, and the cap top is connected to a motor inside the fan assembly through a push rod.

[0006] Specifically, the fan assembly includes a motor, the lower end of which drives the impeller to rotate, and the upper end is connected to the top of the cap via a push rod.

[0007] Specifically, when the motor is turned on, the impeller rotates to drive ventilation, and at the same time, the push rod moves upward to open the cap.

[0008] Specifically, the top of the cap has a conical structure, and the top is connected to the motor of the fan assembly via a push rod, but is not connected or fixed to the non-powered fan blades.

[0009] Specifically, the wind cap assembly has a horizontal motor bracket inside to fix the motor of the fan assembly.

[0010] Specifically, the bottom of the hood assembly is equipped with a deflector plate, which is spirally distributed to guide airflow into the vent.

[0011] Specifically, a detachable mounting base is provided below the deflector, which is connected to the vent on the roof.

[0012] Specifically, there are non-powered fan blades and ventilation driven by natural wind.

[0013] The beneficial effects of this utility model are: 1. This utility model combines the functions of a roof fan and a non-powered wind cap. It can utilize natural wind power for energy-saving ventilation and can also achieve strong ventilation by driving the fan with electricity when necessary, thus meeting the ventilation needs under different conditions and improving the applicability and flexibility of the ventilation device.

[0014] 2. The air deflector inside the ventilator assembly can effectively improve ventilation efficiency and the controllability of ventilation volume, further optimizing the ventilation effect;

[0015] 3. The use of detachable fan components facilitates installation, maintenance, and replacement, reducing operating costs and maintenance difficulty. Attached Figure Description

[0016] Figure 1 This is a cross-sectional structural diagram of the present invention.

[0017] In the diagram, 1 is the push rod, 2 is the cap, 3 is the motor, 4 is the motor bracket, 5 is the impeller, 6 is the guide plate, and 7 is the unpowered fan blade. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] Example 1: A multi-mode ventilation device, such as Figure 1 As shown, it includes a hood assembly and a fan assembly. The hood assembly includes a cap 2, which is a conical structure located on the top of the hood assembly and can slide upward. The hood assembly has a non-powered fan blade 7 on its exterior. The fan assembly includes a motor 3, an impeller 5, and a push rod 1. The motor 3 is installed inside the ventilation duct near one end of the hood assembly, and the impeller 5 is connected to the output shaft of the motor 3.

[0020] The cap assembly, consisting of the cap top 2 and the unpowered fan blades 7, constitutes the unpowered ventilator. The unpowered ventilator, also called a spherical ventilator, vortex ventilator, natural ventilation cap, or unpowered fan, is a ventilation device that requires no electricity. It primarily relies on natural wind speeds and the principle of indoor and outdoor air convection to function. When external wind blows across the ventilator, a special design on the ventilator (such as cuts or holes) generates an upward lift, causing the ventilator (or sphere) to rotate with the wind direction. This rotation drives the internal turbine to rotate as well. The turbine's rotation creates a low-pressure area inside the ventilator. This low-pressure area, combined with the high-pressure area outside, creates a pressure difference, thus driving airflow. Due to the low-pressure area, indoor air is drawn into the ventilator and accelerated out through the turbine's rotation. Simultaneously, outdoor air enters the room through the cuts or holes in the ventilator, creating natural air convection. The rotation of the turbine not only accelerates the airflow, but also effectively removes stale hot air, moisture and pollutants from the room through centrifugal force and negative pressure.

[0021] The non-powered ventilator requires no electricity, operates quietly and continuously, and has significant energy-saving and environmental advantages. When large-volume ventilation is not required, the ventilation device of this embodiment can quickly expel hot and polluted air from the room through natural ventilation via the ventilator assembly, improving the indoor environment and reducing the indoor temperature. Simultaneously, because it does not require electricity, the non-powered ventilator is highly energy efficient, has economical installation costs, low maintenance costs, and a long service life. It is particularly suitable for places such as residences, schools, and hospitals where additional large-volume ventilation is rarely needed, but noise levels are very low; in these cases, the non-powered ventilator is required for ventilation. When large-volume ventilation is occasionally needed, the ventilation device of this embodiment can switch to active ventilation mode, activating motor 3. Motor 3 drives impeller 5 to rotate, accelerating the airflow speed in the ventilation duct. Simultaneously, the top ventilator is activated by the electric push rod 1, thereby achieving a powerful and stable forced ventilation volume.

[0022] The lower part of the hood assembly is provided with a guide plate 6, which is spirally distributed to guide the airflow to the vent and improve ventilation efficiency.

[0023] The motor 3 is equipped with a push rod 1, which can push the top hood upward to open when the motor 3 is started.

[0024] The windproof hood assembly is made of lightweight and corrosion-resistant materials, such as aluminum alloy, which ensures structural strength and effectively resists wind and rain erosion.

[0025] The fan assembly and ventilation duct are fixed together by a detachable connection, which facilitates installation, maintenance and replacement.

[0026] When there is natural wind outside, the non-powered fan blades 7 of the hood assembly rotate under the action of wind, driving the surrounding air to flow. The air enters the ventilation duct through the ventilation port at the bottom of the hood assembly, achieving natural ventilation. When the indoor ventilation demand is large or natural ventilation cannot meet the requirements, the motor 3 is started. The motor 3 drives the impeller 5 to rotate, accelerating the airflow speed in the ventilation duct. At the same time, the top hood exhaust is opened by starting the electric push rod 1, thereby achieving a strong and stable forced ventilation volume.

[0027] This utility model combines the functions of a rooftop fan and a non-powered ventilator, enabling energy-saving ventilation by utilizing natural wind power and providing powerful ventilation by driving the fan with electricity when necessary. This meets ventilation needs under different circumstances and improves the applicability and flexibility of the ventilation device.

[0028] The air deflector 6 inside the hood assembly can effectively improve ventilation efficiency and controllability of ventilation volume, further optimizing the ventilation effect.

[0029] The wind cap assembly is made of lightweight and corrosion-resistant materials, and the fan assembly connection method is detachable, which facilitates installation, maintenance and replacement, reducing the cost of use and maintenance difficulty.

[0030] Example 2: A multi-mode ventilation device, such as Figure 1 As shown, it consists of a wind cap assembly and a fan assembly. The wind cap assembly includes a top cap 2 and a non-powered fan blade 7 below the wind cap. The fan assembly is located inside the wind cap assembly.

[0031] The cap 2 is a conical structure located at the top of the wind cap assembly and can slide upwards. The non-powered fan blades 7 are located around the bottom of the wind cap, encircling the outside of the fan assembly.

[0032] When there is natural wind outside, the non-powered fan blades 7 of the wind cap assembly rotate under the action of wind force, driving the surrounding air to flow. The air enters the ventilation duct through the ventilation port at the bottom of the wind cap assembly, realizing natural ventilation.

[0033] The fan assembly includes a motor 3, an impeller 5, and a push rod 1. The motor 3 is installed inside the ventilation duct near one end of the hood assembly, and the impeller 5 is connected to the output shaft of the motor 3. The lower end of the motor 3 drives the impeller 5 to rotate, and the upper end is connected to the hood top 2 via the push rod 1.

[0034] When high-efficiency ventilation is required using motor 3, motor 3 drives impeller 5 to rotate for ventilation, and at the same time, push rod 1 moves upward to open cap 2, increasing air intake.

[0035] The lower part of the hood assembly is provided with a guide plate 6, which is spirally distributed to guide the airflow to the vent and improve ventilation efficiency.

[0036] A detachable mounting base is located below the deflector plate 6, which connects to the roof vent. The fan assembly and ventilation duct are fixed together via a detachable connection, facilitating installation, maintenance, and replacement.

[0037] Since the wind cap assembly is exposed to the outside world for a long time, the wind cap assembly in this embodiment is made of lightweight and corrosion-resistant materials, such as aluminum alloy, which can not only ensure structural strength, but also effectively resist wind and rain erosion, and at the same time protect the internal fan components and prevent wind and rain erosion and other factors from affecting the life of motor 3.

[0038] When there is natural wind outside, the non-powered fan blades 7 of the hood assembly rotate under the action of wind, driving the surrounding air to flow. The air enters the ventilation duct through the ventilation port at the bottom of the hood assembly, achieving natural ventilation. When the indoor ventilation demand is large or natural ventilation cannot meet the requirements, the motor 3 is started. The motor 3 drives the impeller 5 to rotate, accelerating the airflow speed in the ventilation duct. At the same time, the top hood exhaust is opened by starting the electric push rod 1, thereby achieving a strong and stable forced ventilation volume.

[0039] This utility model combines the functions of a rooftop fan and a non-powered ventilator, enabling energy-saving ventilation by utilizing natural wind power and providing powerful ventilation by driving the fan with electricity when necessary. This meets ventilation needs under different circumstances and improves the applicability and flexibility of the ventilation device.

[0040] The air deflector 6 inside the hood assembly can effectively improve ventilation efficiency and controllability of ventilation volume, further optimizing the ventilation effect.

[0041] The wind cap assembly is made of lightweight and corrosion-resistant materials, and the fan assembly connection method is detachable, which facilitates installation, maintenance and replacement, reducing the cost of use and maintenance difficulty.

[0042] Example 3: A multi-mode ventilation device, such as Figure 1 As shown, it includes a wind cap assembly and a fan assembly inside the wind cap assembly; the wind cap assembly includes a cap top 2 and a non-powered fan blade 7 disposed at the lower part of the cap top 2; the fan assembly is disposed inside the wind cap assembly, and the cap top 2 is connected to the motor 3 inside the fan assembly through a push rod 1.

[0043] In this embodiment, the cap 2 and the non-powered fan blades 7 of the fan assembly together constitute a non-powered fan cap. This non-powered fan cap requires no electricity, operates quietly and sustainably, and offers significant energy-saving and environmental advantages. When high-volume ventilation is not required, the ventilation device of this embodiment can quickly expel hot and polluted air from the room through natural ventilation via the fan cap assembly, improving the indoor environment and reducing indoor temperature. Simultaneously, because it does not require electricity, the non-powered fan cap is highly energy efficient, has economical installation costs, low maintenance costs, and a long service life. It is particularly suitable for residential areas, schools, hospitals, and other places where additional high-volume ventilation is rarely needed, but noise control is critical; in these cases, the non-powered fan cap is necessary for ventilation. Conversely, when high-volume ventilation is required, or in applications such as industrial plants where high-volume ventilation is necessary, the ventilation device of this embodiment can switch to active ventilation mode. The motor 3 is activated, driving the impeller 5 to rotate, accelerating the airflow speed within the ventilation duct. Simultaneously, the electric push rod 1 activates the top fan cap to exhaust air, thereby achieving a powerful and stable forced ventilation volume.

[0044] The fan assembly includes a motor 3, the lower end of which drives the impeller 5 to rotate, and the upper end is connected to the cap 2 via a push rod 1.

[0045] When a large volume of ventilation is required, the motor 3 of the fan assembly can be turned on. When the motor 3 is turned on, the impeller 5 rotates, driving the ventilation, and at the same time, the push rod 1 moves upward to open the cap 2. Opening the cap 2 can increase the air intake and increase the ventilation efficiency.

[0046] The cap top 2 has a conical structure and is connected to the motor 3 of the fan assembly via a push rod 1, but is not fixed to the non-powered fan blades 7. The conical structure can protect against wind and rain and is not easily affected by weather. When there is natural wind outside, the non-powered fan blades 7 of the wind cap assembly rotate under the action of wind force, driving the surrounding air to flow. The air enters the ventilation duct through the ventilation port at the bottom of the wind cap assembly, achieving natural ventilation.

[0047] In this embodiment, a horizontal motor bracket 4 is provided inside the wind cap assembly to fix the motor 3 of the fan assembly, thereby increasing the stability of the structure.

[0048] The bottom of the vent assembly is equipped with a guide plate 6, which is spirally distributed to guide the airflow to the vent and improve ventilation efficiency.

[0049] A detachable mounting base is located below the deflector plate 6, which connects to the roof vents. This detachable fan assembly connection method facilitates installation, maintenance, and replacement, reducing operating costs and maintenance difficulty.

[0050] When there is natural wind outside, the non-powered fan blades 7 of the hood assembly rotate under the action of wind, driving the surrounding air to flow. The air enters the ventilation duct through the ventilation port at the bottom of the hood assembly, achieving natural ventilation. When the indoor ventilation demand is large or natural ventilation cannot meet the requirements, the motor 3 is started. The motor 3 drives the impeller 5 to rotate, accelerating the airflow speed in the ventilation duct. At the same time, the top hood exhaust is opened by starting the electric push rod 1, thereby achieving a strong and stable forced ventilation volume.

[0051] This utility model combines the functions of a rooftop fan and a non-powered ventilator, enabling energy-saving ventilation by utilizing natural wind power and providing powerful ventilation by driving the fan with electricity when necessary. This meets ventilation needs under different circumstances and improves the applicability and flexibility of the ventilation device.

[0052] The air deflector 6 inside the hood assembly can effectively improve ventilation efficiency and controllability of ventilation volume, further optimizing the ventilation effect.

[0053] Since the windproof hood assembly is exposed to the outside environment for a long time, it is made of lightweight and corrosion-resistant materials, which makes it easy to install, maintain and replace, reducing the cost of use and maintenance difficulty.

[0054] The above specific embodiments are merely preferred embodiments of this utility model, and are not intended to limit the specific implementation structure and scope of this utility model. In fact, some equivalent changes can be made according to the shape, structure, and design purpose of this utility model. Therefore, all equivalent changes made according to the shape, structure, and design purpose of this utility model should be included within the protection scope of this utility model, that is, these equivalent changes should all be protected by this utility model.

Claims

1. A multi-mode venting device, characterized in that, The fan assembly is arranged in the inside of the hood assembly, and the cap top is connected with the motor in the fan assembly through a push rod.

2. The multi-mode vent of claim 1, wherein, The fan assembly includes a motor, the lower end of the motor drives the impeller to rotate, and the upper end is connected with the cap top through a push rod.

3. The multi-mode vent of claim 2, wherein, When the motor is turned on, the impeller rotates to drive ventilation, and the push rod is moved upward to open the cap top.

4. The multi-mode vent of claim 1, wherein, The cap top is a conical structure, and the cap top is connected with the motor of the fan assembly through the push rod and is not connected and fixed with the unpowered fan blade.

5. The multi-mode vent of claim 1, wherein, A transverse motor support is arranged in the inside of the hood assembly to fix the motor of the fan assembly.

6. The multi-mode vent of claim 1 or 5, wherein, A guide plate is arranged at the bottom of the hood assembly, the guide plate is spirally distributed, and the guide plate guides the airflow to flow into the ventilation opening.

7. The multi-mode vent of claim 6, wherein, A detachable fixing base is arranged below the guide plate, and the detachable fixing base is connected with the ventilation opening of the roof.

8. The multi-mode vent of claim 1, wherein, The unpowered fan blade is driven by natural wind to ventilate.

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