Energy-saving high-air-volume fan structure

Abstract

The utility model relates to an energy-saving high-air-volume fan structure which comprises a volute and a wind wheel and is characterized in that the volute is provided with an air outlet, the wind wheel is arranged in an inner cavity of the volute in a rotating mode, and an air inlet is formed in the position, corresponding to the wind wheel, of the volute; a gap between the inner wall of the volute and the wind wheel forms an air duct, the air duct is divided into a first air duct body, a second air duct body, a third air duct body, a fourth air duct body and a fifth air duct body, the first air duct body, the second air duct body, the third air duct body, the fourth air duct body and the fifth air duct body are communicated, and the first air duct body is communicated with the air outlet; through the special design that the ratio of the sizes of the first to fifth air ducts to the wind wheel is adjusted to be smaller than 1, the effect of improving the air volume under the same power is achieved. By means of the design optimization, the fan can generate high-air-volume airflow more effectively during operation, and the fan is suitable for occasions where a large amount of air needs to circulate, such as large kitchens and flue gas emission.

Description

Technical Field

[0001] The utility model relates to an energy-saving high-air volume fan structure. Background Art

[0002] As people's living standards improve, kitchen range hoods are widely used as an important household appliance to remove fumes and odors generated during cooking. Traditional range hoods usually use centrifugal fans or axial flow fans, which have relatively simple structures and working principles, but there are some problems in actual use. One of them is that at the same power, the air volume of traditional fans is limited and cannot meet some scenarios with high air volume requirements, such as large kitchens or cooking equipment.

[0003] On the other hand, existing range hoods have the problem of high energy consumption in actual use. This is mainly because more electricity is needed to provide sufficient air volume. This high energy consumption not only increases the cost of use, but also does not meet the current social requirements for energy conservation and environmental protection.

[0004] In order to solve these problems, the prior art has continuously made efforts to improve the design of range hoods, including the structure and working principle of the fan. However, to date, there is still a demand to increase the air volume and reduce energy consumption, especially to improve the performance while maintaining the efficacy of the range hood, which has become an urgent problem to be solved in this field. Utility Model Content

[0005] The utility model aims to provide an energy-saving high-air-volume fan structure which can more effectively utilize power, increase air volume and reduce energy consumption.

[0006] The purpose of the utility model is achieved in this way:

[0007] An energy-saving high-air-volume fan structure comprises a volute and a wind wheel, wherein the volute is provided with an air outlet, the wind wheel is rotatably arranged in an inner cavity of the volute, and the volute is provided with an air inlet at a position corresponding to the wind wheel;

[0008] The gap between the inner wall of the volute and the wind wheel forms an air duct, the air duct is divided into a first air duct, a second air duct, a third air duct, a fourth air duct and a fifth air duct, the first air duct, the second air duct, the third air duct, the fourth air duct and the fifth air duct are connected, and the first air duct is connected to the air outlet;

[0009] The ratio of the size of the first air duct to the diameter of the wind wheel is less than 1;

[0010] The ratio of the size of the second air duct to the diameter of the wind wheel is less than 1;

[0011] The ratio of the size of the third air duct to the diameter of the wind wheel is less than 1;

[0012] The ratio of the size of the fourth air duct to the diameter of the wind wheel is less than 1;

[0013] The ratio of the size of the fifth air duct to the diameter of the wind wheel is less than 1;

[0014] The ratio of the diameter of the air outlet to the diameter of the wind wheel is equal to 1.

[0015] Improve air volume efficiency: By adjusting the size of the first to fifth air ducts and the special design of the wind wheel ratio less than 1, the effect of increasing air volume under the same power is achieved. This design optimization enables the fan to generate high air volume more effectively during operation, which is suitable for occasions that require a large amount of air circulation, such as large kitchens, smoke exhaust, etc.

[0016] Reduce energy consumption: By optimizing the air duct structure, energy consumption is reduced at the same air volume. This is because when the fan provides the same air volume, the reasonably designed air duct reduces resistance and energy loss, thereby reducing electricity consumption. This helps reduce energy waste and meets the social requirements of energy conservation and emission reduction.

[0017] Effective fume removal: Since this fan is mainly used for range hoods, its high air volume and energy-saving characteristics make it more efficient in removing fume in the kitchen environment. Through the reasonable design of the air duct, the fume can be extracted more quickly and thoroughly, keeping the kitchen air fresh and improving the user experience.

[0018] Environmental protection and sustainability: Reducing energy consumption not only saves users money, but also helps reduce the impact on the environment. This fan design complies with the principles of sustainable development and promotes a more environmentally friendly lifestyle.

[0019] In general, by adjusting the size of the air duct and the ratio of the wind wheel, this innovative design of the fan has brought beneficial effects in improving performance, reducing energy consumption, and better responding to specific environmental needs, providing a more efficient solution for application areas such as range hoods.

[0020] The purpose of the utility model can also be solved by the following technical measures:

[0021] Furthermore, the diameter of the wind wheel is 120 mm.

[0022] Further, the ratio of the size of the first air duct to the diameter of the wind wheel is 0.48;

[0023] The ratio of the size of the second air duct to the diameter of the wind wheel is 0.75;

[0024] The ratio of the size of the third air duct to the diameter of the wind wheel is 0.57;

[0025] The ratio of the size of the fourth air duct to the diameter of the wind wheel is 0.57;

[0026] The ratio of the size of the fifth air duct to the diameter of the wind wheel is 0.53.

[0027] Improve airflow efficiency: The ratio of the size of the first air duct to the diameter of the wind wheel is 0.48, which means it is narrow, which can effectively accelerate the airflow and increase the air speed entering the fan. This acceleration helps to quickly push the air to the air outlet, increase the overall air volume and wind speed, and make the airflow output more efficient.

[0028] Energy-saving optimization: By finely adjusting the size of each air duct, especially the close connection between the first air duct and the air outlet (the ratio of the air outlet to the wind wheel diameter is 1), it is ensured that there is no extra space waste and airflow blockage, thereby maximizing the direct conversion efficiency of energy. This design helps to reduce energy consumption and make the fan more energy-efficient while maintaining high performance.

[0029] Reduce noise and vibration: Although the first air duct is narrow, its design and reasonable ratio with other air ducts help smooth the air flow transfer and reduce the turbulence and impact that may be generated inside the fan, thereby reducing noise and vibration during operation.

[0030] Enhanced system stability: The design of the entire air duct system from the impeller to the air outlet ensures the continuity and stability of the airflow. This smooth airflow not only improves performance, but also extends the service life of the equipment and reduces maintenance requirements.

[0031] Furthermore, the area between the right top inner wall of the volute and the rotation center of the wind wheel forms a first air duct and a second air duct;

[0032] The area between the left inner wall of the volute and the rotation center of the wind wheel forms a third wind channel;

[0033] The area between the bottom inner wall of the volute and the rotation center of the wind wheel forms a fourth wind channel;

[0034] A fifth air duct is formed in an area between the right inner wall of the volute and the rotation center of the wind wheel;

[0035] The air outlet is opened on the right side of the volute, and the air outlet is communicated with the first air duct.

[0036] Optimization of airflow distribution: By distributing different air ducts at different positions of the vortex casing (top, left, bottom and right inner wall of the right side), more uniform and effective airflow guidance and distribution can be achieved. This distribution helps to balance the force on the wind wheel and reduce wear and noise caused by uneven airflow.

[0037] Improve energy efficiency: Each air duct is specially designed according to its position and function, which can not only guide the airflow more effectively, but also improve the energy efficiency of the entire system. For example, by precisely controlling the path and speed of the airflow, energy loss can be reduced and the overall operating efficiency of the fan can be improved.

[0038] Reduce vibration and noise: Correct air duct layout helps reduce vibration and noise generated when the fan is running. The smooth flow of air in the volute reduces turbulence and possible impact noise, which has a positive impact on improving the operating quality and service life of the equipment.

[0039] Improved air flow performance: Since the first air duct is directly connected to the air outlet, this design ensures that the air outlet can effectively output the maximum air volume while maintaining the stability of the wind speed. This is especially important for industrial applications that require a lot of ventilation and air delivery.

[0040] Furthermore, it also includes a motor, the wind wheel is provided with a motor installation cavity, the top of the motor installation cavity is provided with an axial hole for connecting the motor shaft, the vortex casing is provided with a motor installation area, the motor is fixed in the motor installation area, and the motor enters the motor installation cavity, the motor shaft passes through and is connected to the axial hole, and the motor drives the wind wheel to rotate.

[0041] Enhanced stability: The motor is fixed in a specific area of ​​the volute. This fixing method not only provides stable support for the motor, but also reduces vibration and noise during operation. This installation ensures smoother operation of the motor and extends the service life of the equipment.

[0042] Improve energy efficiency: The motor directly drives the wind wheel, reducing the loss during energy transmission. The directly connected motor and wind wheel design improves overall energy efficiency because the motor's energy is more directly converted into the rotational power of the wind wheel, thereby reducing energy consumption.

[0043] Improved thermal management: By housing the motor inside the volute, the fan's own airflow can be used more efficiently to cool the motor. This natural cooling effect helps maintain the motor's ideal operating temperature, preventing overheating and increasing efficiency and life.

[0044] Furthermore, it also includes a first door panel and a second door panel, and the inner wall of the air outlet is provided with a retaining rib;

[0045] The first door panel is hinged at the air outlet, and the first door panel rotates around the hinge. When the first door panel is opened, the first door panel is away from the retaining rib to form the first air outlet. When the first door panel is closed, the first door panel rests against the corresponding retaining rib and the first air outlet is closed.

[0046] The second door panel is hinged at the air outlet, and the second door panel rotates around the hinge. When the second door panel is opened, the second door panel is away from the retaining rib to form a second air outlet. When the second door panel is closed, the second door panel rests against the corresponding retaining rib and the second air outlet is closed.

[0047] Prevent backflow and air pollution: When the fan stops working, the first door panel and the second door panel close the air outlet, which can effectively prevent the outside flue air or other pollutants from backflowing into the room through the fan, especially suitable for environments with high requirements for air quality such as kitchens and laboratories. This not only ensures the indoor air quality, but also improves the sanitation of the environment.

[0048] Increase the automation and intelligence of the system: the airflow of the first air duct can automatically push open the door panel to discharge air, which means that the system can automatically adjust the opening and closing of the air outlet according to the operating status of the fan without manual intervention, thus improving the automation level of the system and making it suitable for modern automated production or operation environment.

[0049] Reduced maintenance costs: By effectively preventing pollutants from flowing back into the system, the system reduces the frequency of internal cleaning and maintenance, thereby reducing maintenance costs.

[0050] The beneficial effects of the utility model are as follows:

[0051] The utility model adopts a special design in which the size of the first to fifth air ducts is adjusted and the ratio of the wind wheel is less than 1, thereby achieving the effect of increasing the air volume under the same power. Such design optimization enables the fan to more effectively generate high-volume airflow during operation, and by optimizing the air duct structure, reduces resistance and energy loss, thereby reducing electricity consumption, which helps to reduce energy waste.

[0052] The utility model, when the fan stops working, the first door panel and the second door panel close the air outlet, which can effectively prevent the flue air or other pollutants from entering the room through the fan backflow, and is particularly suitable for environments with high requirements for air quality such as kitchens and laboratories. This not only ensures the indoor air quality, but also improves the sanitation of the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 Schematic diagram of the energy-saving high air volume fan structure.

[0054] Figure 2 Schematic diagram of the energy-saving high-air-volume fan structure (excluding part of the volute).

[0055] Figure 3 Schematic diagram of the energy-saving high-air-volume fan structure (excluding part of the volute).

[0056] Figure 4Schematic diagram of the energy-saving high-air-volume fan structure (the air outlet is in the closed state).

[0057] Figure 5 Schematic diagram of the energy-saving high-air-volume fan structure (the air outlet is in the open state).

[0058] Figure 6 This is the assembly drawing of the energy-saving high air volume fan structure.

[0059] Figure 7 This is another angle assembly diagram of the energy-saving high air volume fan structure.

[0060] Figure 8 The test results of the energy-saving high air volume fan structure. DETAILED DESCRIPTION

[0061] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0062] Example, combined with Figures 1 to 8 As shown, an energy-saving high-air-volume fan structure includes a volute 6 and a wind wheel 7, wherein the volute 6 is provided with an air outlet 61, the wind wheel 7 is rotatably arranged in the inner cavity of the volute 6, and the volute 6 is provided with an air inlet 62 at a position corresponding to the wind wheel 7;

[0063] The gap between the inner wall of the volute 6 and the wind wheel 7 forms an air duct, and the air duct is divided into a first air duct 1, a second air duct 2, a third air duct 3, a fourth air duct 4 and a fifth air duct 5. The first air duct 1, the second air duct 2, the third air duct 3, the fourth air duct 4 and the fifth air duct 5 are connected, and the first air duct 1 is connected to the air outlet 61;

[0064] The ratio of the size of the first air duct 1 to the diameter of the wind wheel 7 is less than 1;

[0065] The ratio of the size of the second air duct 2 to the diameter of the wind wheel 7 is less than 1;

[0066] The ratio of the size of the third air duct 3 to the diameter of the wind wheel 7 is less than 1;

[0067] The ratio of the size of the fourth air duct 4 to the diameter of the wind wheel 7 is less than 1;

[0068] The ratio of the size of the fifth air duct 5 to the diameter of the wind wheel 7 is less than 1;

[0069] The ratio of the diameter of the air outlet 61 to the diameter of the wind wheel 7 is equal to 1.

[0070] Furthermore, the diameter of the wind wheel 7 is 120 mm.

[0071] Furthermore, the ratio of the size of the first air duct 1 to the diameter of the wind wheel 7 is 0.48;

[0072] The ratio of the size of the second air duct 2 to the diameter of the wind wheel 7 is 0.75;

[0073] The ratio of the size of the third air duct 3 to the diameter of the wind wheel 7 is 0.57;

[0074] The ratio of the size of the fourth air duct 4 to the diameter of the wind wheel 7 is 0.57;

[0075] The ratio of the size of the fifth air duct 5 to the diameter of the wind wheel 7 is 0.53.

[0076] Furthermore, the area between the right top inner wall of the volute 6 and the rotation center of the wind wheel 7 forms a first air duct 1 and a second air duct 2;

[0077] The area between the left inner wall of the volute 6 and the rotation center of the wind wheel 7 forms a third air duct 3;

[0078] The area between the bottom inner wall of the volute 6 and the rotation center of the wind wheel 7 forms a fourth wind channel 4;

[0079] The area between the right inner wall of the volute 6 and the rotation center of the wind wheel 7 forms a fifth wind channel 5;

[0080] The air outlet 61 is opened on the right side of the volute 6 , and the air outlet 61 is connected to the first air duct 1 .

[0081] Furthermore, it also includes a motor, the wind wheel 7 is provided with a motor installation cavity 71, the top of the motor installation cavity 71 is provided with an axial hole 75 for connecting the motor shaft, the volute 6 is provided with a motor installation area 81, the motor is fixed in the motor installation area 81, and the motor enters the motor installation cavity 71, the motor shaft passes through and is connected to the axial hole 75, and the motor drives the wind wheel 7 to rotate.

[0082] Furthermore, it also includes a first door panel 8 and a second door panel 9, and the inner wall of the air outlet 61 is provided with a retaining rib 611;

[0083] The first door panel 8 is hinged at the air outlet 61, and the first door panel 8 rotates around the hinge. When the first door panel 8 is opened, the first door panel is away from the retaining rib to form a first air outlet 612. When the first door panel 8 is closed, the first door panel 8 rests against the corresponding retaining rib 611, and the first air outlet 612 is closed.

[0084] The second door panel 9 is hinged at the air outlet 61, and the second door panel 9 rotates around the hinge. When the second door panel 9 is opened, the second door panel 9 is away from the retaining rib 611 to form a second air outlet 613. When the second door panel 9 is closed, the second door panel 9 rests against the corresponding retaining rib 611 and the second air outlet 613 is closed.

[0085] Combination Figure 8 As shown, when the product of the utility model reaches the maximum air volume, the fluid dynamic efficiency of the utility model is higher and the energy consumption efficiency is lower.

Claims

1. An energy-saving high-air-volume fan structure, comprising a volute (6) and a wind wheel (7), characterized in that: The volute (6) is provided with an air outlet (61), the wind wheel (7) is rotatably arranged in the inner cavity of the volute (6), and the volute (6) is provided with an air inlet (62) at a position corresponding to the wind wheel (7); A gap between the inner wall of the vortex casing (6) and the wind wheel (7) forms an air duct, the air duct being divided into a first air duct (1), a second air duct (2), a third air duct (3), a fourth air duct (4) and a fifth air duct (5), the first air duct (1), the second air duct (2), the third air duct (3), the fourth air duct (4) and the fifth air duct (5) being connected, and the first air duct (1) being connected to the air outlet (61); The ratio of the size of the first air duct (1) to the diameter of the wind wheel (7) is less than 1; The ratio of the size of the second air duct (2) to the diameter of the wind wheel (7) is less than 1; The ratio of the size of the third air duct (3) to the diameter of the wind wheel (7) is less than 1; The ratio of the size of the fourth air duct (4) to the diameter of the wind wheel (7) is less than 1; The ratio of the size of the fifth air duct (5) to the diameter of the wind wheel (7) is less than 1; The ratio of the diameter of the air outlet (61) to the diameter of the wind wheel (7) is equal to 1.

2. The energy-saving high air volume fan structure according to claim 1 is characterized in that: The diameter of the wind wheel (7) is 120 mm.

3. The energy-saving high air volume fan structure according to claim 2 is characterized in that: The ratio of the size of the first air duct (1) to the diameter of the wind wheel (7) is 0.48; The ratio of the size of the second air duct (2) to the diameter of the wind wheel (7) is 0.75; The ratio of the size of the third air duct (3) to the diameter of the wind wheel (7) is 0.57; The ratio of the size of the fourth air duct (4) to the diameter of the wind wheel (7) is 0.57; The ratio of the size of the fifth air duct (5) to the diameter of the wind wheel (7) is 0.

53.

4. The energy-saving high air volume fan structure according to claim 1 is characterized in that: The area between the right top inner wall of the volute (6) and the rotation center of the wind wheel (7) forms a first wind duct (1) and a second wind duct (2); A third air duct (3) is formed in an area between the left inner wall of the volute (6) and the rotation center of the wind wheel (7); A fourth air duct (4) is formed in an area between the bottom inner wall of the vortex casing (6) and the rotation center of the wind wheel (7); A fifth air duct (5) is formed in an area between the right inner wall of the vortex casing (6) and the rotation center of the wind wheel (7); The air outlet (61) is provided on the right side of the volute (6), and the air outlet (61) is connected to the first air duct (1).

5. The energy-saving high air volume fan structure according to claim 1 is characterized in that: The wind wheel (7) is provided with a motor installation cavity (71), a shaft hole (75) for connecting the motor shaft is formed at the top of the motor installation cavity (71), the volute (6) is provided with a motor installation area (81), the motor is fixed in the motor installation area (81), and the motor enters the motor installation cavity (71), the shaft of the motor passes through and is connected to the shaft hole (75), and the motor drives the wind wheel (7) to rotate.

6. The energy-saving high air volume fan structure according to claim 1 is characterized in that: It also includes a first door panel (8) and a second door panel (9), and the inner wall of the air outlet (61) is provided with a retaining rib (611); The first door panel (8) is hinged at the air outlet (61), and the first door panel (8) rotates around the hinge. When the first door panel (8) is opened, the first door panel moves away from the retaining rib, forming a first air outlet (612). When the first door panel (8) is closed, the first door panel (8) abuts against the corresponding retaining rib (611), and the first air outlet (612) is closed. The second door panel (9) is hinged at the air outlet (61), and the second door panel (9) rotates around the hinge. When the second door panel (9) is opened, the second door panel (9) moves away from the retaining rib (611), forming a second air outlet (613). When the second door panel (9) is closed, the second door panel (9) abuts against the corresponding retaining rib (611), and the second air outlet (613) is closed.

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