CN207865500U - A kind of turbine with supercharging fin and the kitchen ventilator comprising the turbine - Google Patents

Abstract

The present application relates to a turbine with supercharging fins and a range hood comprising the turbine. The turbine includes a top ring and a bottom ring, and blades are circumferentially arranged between the top ring and the bottom ring. The blades include alternately arranged first blades and second blades, and the second blades include supercharging fins. The secondary supercharging of turbine blades can be realized by setting supercharging fins. Firstly, the airflow is supercharged through the supercharging fins of the second vane, and then supercharged through the body part of the second vane and the first vane. The experiment The results show that the pressure and suction of the turbine can be increased by about 20%.

Description

Turbine with supercharging fins and range hood comprising the same

technical field

The present application relates to a turbine with supercharging fins and a range hood including the turbine, which are suitable for the technical field of range hoods.

Background technique

The range hood is a kitchen appliance that purifies the kitchen environment. With the improvement of people's quality of life, the range hood has become an indispensable kitchen equipment for modern families. Usually installed above the kitchen stove, it can quickly take away the waste burned by the stove and the oily fume generated during the cooking process and discharge it outside, reduce indoor pollution, purify the air, and have the function of anti-virus and explosion-proof safety guarantee. In the existing range hood, there is usually a problem that the oil fume generated during the cooking process cannot be completely sucked away, resulting in the smell of oil fume in the house. One reason for this phenomenon is that the suction effect of the range hood is not good. The most common way to solve this problem is to increase the motor power of the range hood and the speed of rotation of the turbine, thereby increasing the suction effect. But the problem that follows is that the noise increases due to the increase of the turbine speed, which affects the user experience of the range hood. Therefore, how to increase the suction efficiency of the range hood as much as possible and at the same time reduce the noise of the range hood has become an urgent technical problem in this field.

At the same time, the blades of the turbine in the prior art are generally arc-shaped structures of the same shape, arranged at intervals along the circumferential direction. Gaps are thus left between adjacent vanes for airflow to flow through the gaps. The air ducts of the volute in the prior art are generally smooth air ducts, the flow rate of which is basically constant, and the noise is relatively large.

Utility model content

In order to overcome the above-mentioned defects in the prior art, the present application provides a turbine with supercharging fins and a range hood containing the turbine, which can not only increase the pressure and suction force of the turbine, but also reduce the pressure of the turbine. noise.

According to the present application, a turbine with supercharger fins comprises a top ring and a bottom ring, blades are circumferentially arranged between the top ring and the bottom ring, and the blades include alternately arranged first blades and a second vane including booster fins.

Preferably, the body of the second vane may be the same as that of the first vane, the two ends of the body are respectively arranged on the top ring and the bottom ring, and the height of the booster fin is smaller than that of the The height of the body. The inner sides of the booster fins may be wavy or zigzag. The ends of the booster fins are not in contact with the top ring, and/or the ends of the booster fins are not in contact with the bottom ring.

Preferably, the height of the booster fins is 1/3-4/5 of the height of the body, and/or the width of the booster fins is 1/3-4/5 of the width of the body 5. More preferably, the booster fins are arranged in the middle of the body and integrally formed with the body.

Another aspect of the present application relates to a range hood, which includes a casing, and a turbine assembly is arranged inside the casing, and the turbine assembly includes a volute and a turbine, and the feature is that the turbine is as described above with Supercharged finned turbo.

Preferably, the turbine assembly further includes a turbine middle plate assembled with the turbine, and the turbine middle plate is arranged at a middle height position of the supercharging fin. More preferably, the middle part of the turbine middle plate has a protruding bulging surface.

Preferably, the volute includes a volute, the volute communicates with the air outlet, and two sides of the volute are respectively provided with buffer chambers.

In this application, the secondary supercharging of the turbine blades can be realized by setting the supercharging fins. First, the airflow is supercharged through the supercharging fins of the second vanes, and then the air is boosted through the body part of the second vanes and the first vanes. The experimental results show that the pressure and suction force of the turbine can be increased by about 20%. In addition, by arranging the inner side of the booster fin in a wavy or zigzag shape, it can function as a turbulator, which can effectively reduce the noise when the turbine rotates.

In this application, the axial dimension of the volute is effectively increased through the setting of the buffer chamber, so that the volute becomes a mixed volute including both the axial volute and the radial volute, which can effectively buffer the airflow and reduce the Small noise, increased air volume.

Description of drawings

Fig. 1 shows a schematic perspective view of a range hood according to the present application.

Figure 2 shows a front perspective view of the turbine assembly.

Figure 3 shows a rear perspective view of the turbine assembly.

Figure 4 shows a front perspective view of a turbine with booster fins according to the present application.

Figure 5 shows a rear perspective view of a turbine with booster fins according to the present application.

Figure 6 shows a schematic diagram of a second vane with booster fins according to the present application.

Figure 7 shows a front perspective view of another embodiment of the volute.

Figure 8 shows a rear perspective view of another embodiment of the volute.

Figure 9 shows a side view of another embodiment of the volute.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other. The directional terms in this application, such as "front, back, left, right", "up, down, outside, inside", etc., are for the convenience of description and do not constitute a limitation on the scope of protection. Those skilled in the art know that simple substitutions between the above directions do not depart from the protection scope of the present application.

As shown in FIG. 1 , it shows a perspective view of a range hood according to the present application. As shown in the figure, the range hood includes a casing 1 , a console 2 , a deflector 3 and an oil collection box 4 , and a turbine assembly is arranged inside the casing 1 . The deflector 3 is arranged at the lower part of the casing, and the outside of the deflector 3 may also be provided with a mesh cover 5 .

As shown in Figures 2 and 3, a front perspective view and a rear perspective view of the turbine assembly are shown, respectively. The upper part of the turbine assembly is provided with an air outlet 6, and the air outlet is connected with the smoke exhaust channel to discharge the oil fume to the outside of the range hood. The turbine assembly includes a volute 11 , a mutually assembled turbine 10 and a turbine middle plate 12 , and a wind guide ring 13 may also be provided between the volute 11 and the turbine 10 . In addition to being able to guide the wind, the wind guide ring can also have effects such as noise reduction and prevention of eddy current generation. The center of the turbine middle plate 12 is provided with a shaft hole, the motor shaft of the rotating motor passes through the shaft hole, the rotating motor is fixed on the volute 11, and the turbine 10 and the turbine middle plate 12 are fixed on the rotating motor through the motor shaft. Preferably, as shown in FIG. 3 , a support 14 may also be provided on the back of the turbine 10 to support the turbine on the volute. As shown in Figures 2 and 3, the turbine blades are in a conventional shape, that is, the blades of the turbine are arranged at intervals in the circumferential direction, and the cross-section of the blades is an arc-shaped structure.

As shown in Figures 4 and 5, there are shown a front perspective view and a rear perspective view of a turbine with booster fins according to the present application. As shown in the figure, the turbine includes a top ring 15 and a bottom ring 16, and blades 17 are circumferentially arranged between the top ring 15 and the bottom ring 16, and the blades include alternately arranged first blades 171 and second blades 170, the second blades 170 also includes a booster fin 172 , which is equivalent to adding a booster fin 172 on the basis of the first vane 171 . As shown in Figures 4 and 5, preferably, the middle part of the turbine middle plate 12 has a protruding bulging surface 18, which can form a larger air cavity on the suction side of the turbine to increase the suction force and facilitate the installation of the motor of the motor axis.

As shown in FIG. 6 , a schematic diagram of a second vane with booster fins according to the present application is shown. The body 173 of the second vane 170 is the same as the first vane 171 , and both have an arc-shaped cross section. The two ends of the body 173 are respectively arranged on the top ring 15 and the bottom ring 16. The height of the booster fins 172 is smaller than the height of the body 173. The ends of the booster fins 172 are not in contact with the top ring 15, even the bottom ring 16 No contact either. The height of booster fin 172 can be 1/6～5/6 of the height of body 17, and the width of booster fin 172 can be 1/6～5/6 of the width of body 17; The preferred range of above-mentioned ratio is 1/3～4/5, the optimal value is 1/2.

The turbine midplate may be disposed at a mid-height position of the booster fins 172 . The booster fins 172 can be disposed in the middle of the body 17 and integrally formed with the body 173 . Preferably, when the turbine rotates, the radius of the inner circumference outline of the first blade 171 can be 15cm, and the radius of the inner circumference outline of the booster fin 172 can be 14cm, that is, the width of the booster fin 172 can be 1cm . The inner sides of the booster fins 172 are wavy or zigzag.

The secondary supercharging of the turbine blades can be achieved by setting the supercharging fins, that is, the airflow is firstly supercharged through the supercharging fins of the second vane, and then supercharged through the body part of the second vane and the first vane, Experimental results show that the pressure and suction force of the turbine can be increased by about 20%. In addition, by arranging the inner side of the booster fin in a wavy or zigzag shape, it can function as a turbulator, which can effectively reduce the noise when the turbine rotates.

As shown in Figures 7-9, front and rear perspective views of another embodiment of a volute are shown. As shown in the figure, the volute includes a volute cavity 113, which communicates with the air outlet, and two sides of the volute are respectively provided with buffer chambers. As shown in Figures 7-9, the buffer bin includes a first buffer bin 111 and a second buffer bin 112, the first buffer bin 111 and the second buffer bin 112 have different sizes, the first buffer bin 111 and the second buffer bin 112 Both protrude from the outer surface of the volute. Preferably, on the same side, the first buffer bins 111 and the second buffer bins 112 may be circumferentially oppositely arranged; on different sides, the two first buffer bins are correspondingly arranged, and the two second buffer bins are also correspondingly arranged. Preferably, the height of the blast chamber can be 8-12mm, preferably 9mm, and the ratio of the height of the blast chamber to the width of the volute at the corresponding position can be 0.01-0.5.

The buffer chamber effectively increases the axial dimension of the volute, so that the volute becomes a mixed volute including both the axial volute and the radial volute, which can effectively buffer the airflow, reduce noise and increase the air volume . Experimental results show that after setting up the buffer chamber in this way, the air volume in the volute can be increased by 1 cubic meter per minute, and the noise can be reduced by 1 decibel.

Although the embodiments disclosed in the present utility model are as above, the content described is only an embodiment adopted for the convenience of understanding the present utility model, and is not intended to limit the present utility model. Anyone skilled in the technical field to which the utility model belongs can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in the utility model, but the patent of the utility model The scope of protection must still be based on the scope defined in the appended claims.

Claims (10)

1. A turbine with booster fins, comprising a top ring and a bottom ring, the blades are circumferentially arranged between the top ring and the bottom ring, and it is characterized in that the blades include alternately arranged first A vane and a second vane, the second vane includes booster fins. 2. The turbine with booster fins according to claim 1, wherein the body of the second blade is the same as that of the first blade, and the two ends of the body are respectively arranged on the top ring And on the bottom ring, the height of the booster fins is smaller than the height of the body. 3. The turbine with booster fins according to claim 1, characterized in that, the inner sides of the booster fins are wavy or zigzag. 4. The turbine with booster fins according to any one of claims 1-3, characterized in that, the ends of the booster fins are not in contact with the top ring, and/or the The ends of the booster fins are not in contact with the bottom ring. 5. The turbine with supercharging fins according to claim 2, characterized in that, the height of the supercharging fins is 1/3-4/5 of the height of the body, and/or the The width of the booster fins is 1/3-4/5 of the width of the main body. 6 . The turbine with supercharging fins according to claim 2 , wherein the supercharging fins are arranged at a middle position of the body and integrally formed with the body. 7 . 7. A range hood, comprising a casing, a turbine assembly is provided inside the casing, and the turbine assembly includes a volute and a turbine, characterized in that, the turbine is according to any one of claims 1-6 Turbines with booster fins as described above. 8. The range hood according to claim 7, wherein the turbine assembly further comprises a turbine middle plate assembled with the turbine, and the turbine middle plate is arranged at the middle height of the booster fins location. 9. The range hood according to claim 8, characterized in that, the middle part of the turbine middle plate has a protruding bulging surface. 10. The range hood according to claim 7, 8 or 9, wherein the volute includes a volute, the volute communicates with the air outlet, and the two sides of the volute are respectively provided with Buffer warehouse.