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, an air outlet is formed in the volute, 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 sequentially communicated, and the first air duct body is communicated with the air outlet; generally speaking, by adjusting the size of the air duct and the ratio of the wind wheel, the fan with the innovative design has beneficial effects in the aspects of improving the performance, reducing the energy consumption, better coping with specific environment requirements and the like, and a more efficient solution is provided for the application fields of range hoods and the like.

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 in sequence, 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 wind duct to the diameter of the wind wheel is less than 1.

[0014] 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.

[0015] 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.

[0016] 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.

[0017] 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.

[0018] 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.

[0019] The purpose of the utility model can also be solved by the following technical measures:

[0020] Furthermore, the diameter of the wind wheel is 151 mm.

[0021] Further, the ratio of the size of the first air duct to the diameter of the wind wheel is 0.4;

[0022] The ratio of the size of the second air duct to the diameter of the wind wheel is 0.82;

[0023] The ratio of the size of the third air duct to the diameter of the wind wheel is 0.65;

[0024] The ratio of the size of the fourth air duct to the diameter of the wind wheel is 0.62;

[0025] The ratio of the size of the fifth wind duct to the diameter of the wind wheel is 0.54.

[0026] The ratio of the first air duct is 0.4: This ratio is relatively small, which means that the diameter of the first air duct is less than half of the diameter of the wind wheel, so a higher speed can be generated near the wind wheel, which helps to quickly start the airflow and effectively push the airflow into the subsequent air ducts. This compact design helps to quickly increase the wind speed, thereby improving the overall suction and exhaust efficiency.

[0027] The ratio of the second air duct is 0.82: This ratio is large, indicating that the width of the air duct is close to the diameter of the wind wheel, which helps to maintain the stability and continuity of the airflow without excessively increasing the resistance. This design can effectively balance the wind speed and pressure, ensuring that the airflow can be stably transmitted after being accelerated in the first air duct.

[0028] The ratio of the third air duct is 0.65: the medium ratio helps to further adjust the speed and pressure of the airflow and optimize the dynamic characteristics of the airflow. This intermediate size allows the air duct to effectively control the diffusion of the airflow, reduce the gradient of the wind speed in the subsequent air ducts, and ensure the efficient delivery of the airflow.

[0029] The ratio of the fourth air duct is 0.62: this ratio is slightly smaller than that of the third air duct, which helps to further adjust and stabilize the direction and speed of the airflow, reduce turbulence inside the air duct, thereby reducing energy loss and improving the energy efficiency of the entire system.

[0030] The ratio of the fifth air duct is 0.54: this ratio is smaller and the air duct is narrower, which is conducive to further accelerating the airflow and enhancing the exhaust effect in the final stage of the exhaust process. At the same time, such a design helps to control noise and energy consumption while maintaining high exhaust efficiency.

[0031] Overall, these designs help optimize the airflow characteristics of the entire duct system by precisely controlling the ratio of the duct size to the impeller diameter, thereby achieving efficient and energy-saving exhaust effects. Such designs not only improve the performance of the range hood, but also meet the environmental protection needs of energy conservation and emission reduction, and are conducive to applications in high-demand environments, such as large or commercial kitchens.

[0032] 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;

[0033] A third air duct is formed in the area between the left inner wall of the volute and the rotation center of the wind wheel;

[0034] The area between the bottom inner wall of the volute and the rotation center of the wind wheel forms a fourth wind channel;

[0035] 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;

[0036] The air outlet is opened on the right side of the volute, and the air outlet is communicated with the first air duct.

[0037] Layout of the first and second air ducts (top right side of the vortex housing): This area is usually the part with the strongest airflow at the beginning of the impeller startup. Since the air duct is directly connected to the air outlet, this design helps to quickly and effectively guide the airflow out of the range hood. The small size of the first air duct (ratio of 0.4) helps to quickly accelerate the airflow, while the larger size of the second air duct (ratio of 0.82) maintains the stability of the airflow without significantly increasing the resistance. This layout is particularly effective in quickly improving the exhaust efficiency, ensuring that oil smoke and odors can be efficiently discharged.

[0038] Layout of the third air duct (left side of the vortex housing): The air duct design in this area helps to evenly process and adjust the airflow coming from the opposite side of the wind wheel, optimize the airflow path, and reduce the energy loss caused by the airflow during the turning process. The medium size of the third air duct (ratio of 0.65) helps to balance the airflow speed and pressure and improve the efficiency of the overall airflow control.

[0039] Layout of the fourth air duct (bottom of the vortex housing): This layout is conducive to handling the airflow below the impeller, ensuring that the airflow is fully utilized inside the range hood and effectively directed to the air outlet. The smaller air duct size (ratio of 0.62) helps control the airflow speed, increase the kinetic energy of the airflow in this area, and promote more effective airflow management.

[0040] The layout of the fifth air duct (bottom right side of the vortex housing): close to the air outlet, the smaller ratio (0.54) helps to further accelerate the airflow near the air outlet, ensuring the maximum exhaust efficiency of the fan. This design increases the airflow speed in the final stage and helps to effectively remove all oil smoke and odor in the kitchen.

[0041] This air duct layout design takes into account the dynamic characteristics of the airflow in the vortex housing, and optimizes the flow path and efficiency of the airflow by cleverly arranging the relative positions and sizes of each air duct. This not only improves the performance of the range hood, but also ensures the effective use of energy, reduces energy consumption and noise, and thus meets the requirements of modern household appliances for environmental protection and high efficiency.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] The beneficial effects of the utility model are as follows:

[0046] The utility model, by adjusting the size of the air duct and the ratio of the wind wheel, this innovatively designed fan brings beneficial effects in improving performance, reducing energy consumption, and better responding to specific environmental requirements, providing a more efficient solution for application fields such as range hoods. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 Schematic diagram of the energy-saving high air volume fan structure.

[0048] Figure 2 This is a schematic diagram of the energy-saving high air volume fan structure from another angle.

[0049] Figure 3 It is a cross-sectional view of the energy-saving high air volume fan structure.

[0050] Figure 4 This is an exploded view of the energy-saving high-air-volume fan structure.

[0051] Figure 5 It is a schematic diagram of the structure of an energy-saving high-air-volume fan (part of the vortex casing is removed to show the diameter of the wind wheel and the positions of the first air duct, the second air duct, the third air duct, the fourth air duct and the fifth air duct).

[0052] Figure 6 The test results of fans with existing technologies (mainly looking at maximum air volume, fluid dynamic efficiency and energy efficiency).

[0053] Figure 7 These are the test results of the energy-saving high-air-volume fan structure (mainly looking at the maximum air volume, fluid dynamics efficiency and energy efficiency). DETAILED DESCRIPTION

[0054] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0055] Example, combined with Figures 1 to 7As 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;

[0056] 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 in sequence, and the first air duct 1 is connected to the air outlet 61;

[0057] The ratio of the size of the first air duct 1 to the diameter of the wind wheel 7 is less than 1;

[0058] The ratio of the size of the second air duct 2 to the diameter of the wind wheel 7 is less than 1;

[0059] The ratio of the size of the third air duct 3 to the diameter of the wind wheel 7 is less than 1;

[0060] The ratio of the size of the fourth air duct 4 to the diameter of the wind wheel 7 is less than 1;

[0061] The ratio of the size of the fifth air duct 5 to the diameter of the wind wheel 7 is less than 1.

[0062] Furthermore, the diameter of the wind wheel 7 is 151 mm.

[0063] Further, the ratio of the size of the first air duct 1 to the diameter of the wind wheel 7 is 0.4;

[0064] The ratio of the size of the second air duct 2 to the diameter of the wind wheel 7 is 0.82;

[0065] The ratio of the size of the third air duct 3 to the diameter of the wind wheel 7 is 0.65;

[0066] The ratio of the size of the fourth air duct 4 to the diameter of the wind wheel 7 is 0.62;

[0067] The ratio of the size of the fifth air duct 5 to the diameter of the wind wheel 7 is 0.54.

[0068] 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;

[0069] 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;

[0070] 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;

[0071] 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;

[0072] 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 .

[0073] 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.

[0074] Combination Figure 6 to Figure 7 As shown, when the prior art product reaches the maximum air volume and the product of the utility model reaches the maximum air volume (the maximum air volumes of the two are close), 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 in sequence, 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 diameter of the wind wheel (7) is 151 mm; The ratio of the size of the first air duct (1) to the diameter of the wind wheel (7) is 0.

4.

2. The energy-saving high air volume fan structure according to claim 1 is characterized in that: The ratio of the size of the second air duct (2) to the diameter of the wind wheel (7) is 0.82; The ratio of the size of the third air duct (3) to the diameter of the wind wheel (7) is 0.65; The ratio of the size of the fourth air duct (4) to the diameter of the wind wheel (7) is 0.62; The ratio of the size of the fifth air duct (5) to the diameter of the wind wheel (7) is 0.

54.

3. 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).

4. 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.

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