CN212337718U

CN212337718U - Large-air-pressure volute used in range hood and integrated stove

Info

Publication number: CN212337718U
Application number: CN202022289012.4U
Authority: CN
Inventors: 黄成钢; 李秦生
Original assignee: Shaoxing Alika Electric Appliance Co ltd
Current assignee: Shaoxing Alika Electric Appliance Co ltd
Priority date: 2019-12-13
Filing date: 2020-10-14
Publication date: 2021-01-12
Anticipated expiration: 2030-10-14
Also published as: CN112228399A

Abstract

The utility model discloses a big wind pressure spiral case for in lampblack absorber, integrated kitchen, include: a volute rear panel, which is provided with a rear air inlet; the front panel and the rear panel of the volute are connected with the volute coaming to form a volute inner cavity; a pressure increasing disc is arranged at the rear air inlet; the edge contour line circular arc line DE, the circular arc line EF, the circular arc line FG and the circular arc line GH of the volute enclosing plate are optimized and matched with the smoke exhaust angle of the included angle a, so that the air quantity, static pressure, air pressure and full pressure efficiency are improved, the air exhaust and smoke guide of a fan are smoother, the noise is lower, the temperature rise of a motor can be reduced, and the service life of the motor is effectively protected; the design of the pressurizing disc greatly improves the air pressure and the static pressure through the shape of the pressurizing hole, the design of the air inlet area and the forming depth.

Description

Large-air-pressure volute used in range hood and integrated stove

Technical Field

The utility model relates to a kitchen appliance field, in particular to lampblack absorber, integrated kitchen spiral case.

Background

The range hood and the integrated stove are kitchen appliances for purifying the kitchen environment. The range hood is arranged above the cooking range and has a smoke suction function, and the integrated kitchen range is a kitchen appliance integrating cooking, smoke suction, storage, disinfection and other functions. Therefore, the range hood and the integrated stove can quickly pump away waste burnt by the stove and oil smoke harmful to human bodies generated in the cooking process, discharge the waste and the oil smoke out of the room, reduce pollution and purify air, and are one of essential kitchen household appliances for families. At present, a fan is installed in an existing range hood or an integrated stove shell and mainly comprises a volute, a wind wheel and a motor, the fan is limited by various reasons such as shape and size, and the volute of the fan with large size is not easy to install, so that the air volume of most range hoods and integrated stoves is small, the use requirement of a user for large air volume is not easy to meet, and the actually measured air volume of the fan adopted in the market is 15-17m³The noise reduction method has the problems of small air quantity and wind pressure and large eddy noise due to the fact that the maximum static pressure is measured below 400Pa and the sound pressure level noise is measured above 70 dB.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a big wind pressure spiral case for in lampblack absorber, the integrated kitchen, can improve amount of wind, static pressure, wind pressure and total pressure efficiency, make and air exhaust more smoothly, the noise is lower.

The utility model discloses the technical scheme who takes does:

a big wind pressure spiral case that is used for lampblack absorber, integrated kitchen includes: a volute rear panel, which is provided with a rear air inlet; the front panel and the rear panel of the volute are connected with the volute coaming to form a volute inner cavity; the method is characterized in that: the air inlet of the back is provided with a pressure increasing disc.

Further, the pressurizing disc is provided with a pressurizing hole for increasing the air pressure.

Furthermore, the number of the pressurizing holes is at least two, and the pressurizing holes are uniformly distributed along the circumference of the pressurizing disc.

Further, the edge contour line of the volute enclosing plate sequentially comprises a straight line AB, a transition arc line BC and an arc line CD, an included angle a between tangent lines of circles where the straight line AB and the arc line CD are located is 36-40 degrees, and the radius of the transition arc line BC is 4-6 mm.

Furthermore, the edge contour line of the volute enclosing plate comprises an arc line DE, the central angle b corresponding to the arc line DE is 78-82 degrees, and the radius is 170-180 mm.

Furthermore, the edge contour line of the volute enclosing plate comprises an arc line EF, the central angle c corresponding to the arc line EF is 85-90 degrees, and the radius is 200-210 mm.

Furthermore, the edge contour line of the volute enclosing plate comprises an arc line F 'G', the central angle d corresponding to the arc line F 'G' is 83-88 degrees, and the radius is 240-250 mm.

Furthermore, one end of the arc line F ' G ' is provided with a transitional arc line FF ' for the arc line to be in transitional connection with the arc line EF, so that the smoke guide is smoother.

Further, the other end of the arc line F ' G ' is provided with a transition arc line G ' G for the arc line is in transition connection with the arc line GH, so that smoke guiding is smoother.

Furthermore, the edge contour line of the volute enclosing plate comprises an arc line GH, the central angle e corresponding to the arc line GH is 4-6 degrees, and the radius is 1845-1855 mm.

The utility model discloses following beneficial effect has:

the design of the pressure increasing disc and the design of the shape, the air inlet area and the forming depth of the pressure increasing hole greatly improve the air pressure and the static pressure; optimize the marginal profile circular arc line DE of spiral case bounding wall, circular arc line EF, circular arc line FG, circular arc line GH to the cooperation contained angle a's angle of discharging fume, thereby improved amount of wind, static pressure, wind pressure and total pressure efficiency, made the fan exhaust to lead the cigarette more smooth and easy, the noise is lower, and can reduce the motor temperature rise, the effectual motor life that has protected.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

FIG. 1 is a front view of the present invention;

fig. 2 is a perspective view of the present invention;

fig. 3 is a perspective view of the present invention without a fixed connecting bracket in another direction.

In the figure: 1. a volute front panel; 2. a volute rear panel; 3. a volute casing coaming; 4. a forward air inlet; 5. a rear air inlet; 6. a pressure increasing disc; 7. a motor mounting hole; 8. a pressurizing hole; 9. fixedly connecting a bracket; 10. an air outlet; 11. the inner cavity of the volute.

Detailed Description

As shown in fig. 1-3, the utility model relates to a big wind pressure spiral case for in lampblack absorber, integrated kitchen, including spiral case front panel 1, spiral case rear panel 2, spiral case bounding wall 3, spiral case front panel 1 is equipped with preceding air inlet 4, and spiral case rear panel 2 is equipped with back air inlet 5, and spiral case bounding wall 3 is located between spiral case front panel 1, the spiral case rear panel 2, is the heliciform, forms spiral case inner chamber 11 behind spiral case front panel 1, spiral case rear panel 2, the 3 built-up connection of spiral case bounding wall to form air outlet 10 at the terminal surface.

The edge contour line of the volute enclosing plate 3 comprises a straight line AB, a transition arc line BC, an arc line CD, an arc line DE, an arc line EF, a transition arc line FF ', an arc line F' G ', a transition arc line G' G and an arc line GH which are in smooth transition in sequence, the design of the transition arc line BC enables air to be more smooth during air outlet, the transition arc line FF 'is arranged between the arc line EF and the arc line F' G 'to enable the connection between the arc line EF and the arc line F' G 'to be smoother, the transition arc line G' G is arranged between the arc line F 'G' and the arc line GH to enable the connection between the arc line F 'G' and the arc line GH to be smoother, and the volute enclosing plate has certain effects on smoke guiding and noise reduction.

As shown in FIG. 1, an included angle a between a straight line AB and a tangent line of a circle where an arc line CD is located is 36-40 degrees, a radius of a transition arc line BC is 4-6 mm, a central angle b corresponding to an arc line DE is 78-82 degrees, a radius is 170-180 mm, a central angle c corresponding to an arc line EF is 85-90 degrees, a radius is 200-210 mm, a central angle d corresponding to an arc line F 'G' is 83-88 degrees, a radius is 240-250 mm, a central angle e corresponding to an arc line GH is 4-6 degrees, and a radius is 1845-1855 mm. Preferably, the included angle a between the tangent lines of the circle where the straight line AB and the circular arc line CD are located is 38 degrees, the radius of the transition circular arc line BC is 4.8mm, the design of the included angle a enables the air flow movement to be more uniform, the central angle b corresponding to the circular arc line DE is 80 degrees, the radius is 176mm, the central angle c corresponding to the circular arc line EF is 87 degrees, the radius is 204mm, the central angle d corresponding to the circular arc line F 'G' is 85 degrees, the radius is 245mm, the central angle e corresponding to the circular arc line GH is 5 degrees, and the radius is 1849 mm. The optimized design of the volute molded line, namely the contour line can improve the air volume, static pressure, air pressure and total pressure efficiency, so that the air exhaust is smoother and the noise is lower.

As shown in fig. 2 and 3, a pressurizing disc 6 is arranged at the rear air inlet 5, the pressurizing disc 6 can improve the stability of the motor during operation, a motor mounting hole 7 is formed in the middle of the pressurizing disc 6, the motor mounting hole 7 is used for mounting the motor, a driving shaft of the motor is connected with an impeller, the impeller is arranged in the volute inner cavity 11, a pressurizing hole 8 is formed in the pressurizing disc 6, and the design of the pressurizing hole 8 can increase air pressure. Preferably, the supercharging holes 8 are arranged outside the motor mounting hole 7, three supercharging holes 8 are uniformly arranged around the motor mounting hole 7 at intervals, and the air pressure and the static pressure of the fan are greatly improved by designing the shapes and the air inlet areas of the supercharging holes 8.

The outer side surface of the volute casing enclosing plate 3 is provided with a fixed connecting support 9, the fixed connecting support 9 is designed to be conveniently connected with an air box in the integrated stove, and the fixed connecting function is started.

The utility model discloses compare as following picture with current spiral case amount of wind, wind pressure value:

	AC air volume	Maximum static pressure	Wind pressure	Full pressure efficiency
					Existing volute	15m³/min	460Pa	340Pa	21％
Utility model spiral case	19m³/min	620Pa	480Pa	26％

It should be noted that, with the existing volute, under the action of the same motor and impeller, the air volume, the maximum static pressure, the air pressure and the total pressure efficiency are all obviously improved.

The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto. Any technical features described in the present invention can achieve substantially the same functions and substantially the same effects by substantially the same means, and the replacement of features that can be imagined by a person of ordinary skill in the art without creative work when the act of infringement occurs is covered in the protection scope of the present invention.

Claims

1. A big wind pressure spiral case that is used for lampblack absorber, integrated kitchen includes:

the volute rear panel is provided with a rear air inlet;

the volute front panel, the volute rear panel and the volute enclosing plate are connected to form a volute inner cavity;

the method is characterized in that:

and a pressure increasing disc is arranged at the rear air inlet.

2. A big wind pressure spiral case that is used for lampblack absorber, integrated kitchen according to claim 1, characterized in that: the pressure increasing disc is provided with a pressure increasing hole for increasing air pressure.

3. A big wind pressure spiral case for in lampblack absorber, integrated kitchen according to claim 2, characterized in that: at least two pressurizing holes are arranged and are uniformly distributed along the circumference of the pressurizing disc.

4. A big wind pressure spiral case that is used for lampblack absorber, integrated kitchen of claim 1 to 3 any, characterized in that: the edge contour line of the volute enclosing plate sequentially comprises a straight line AB, a transition arc line BC and an arc line CD, an included angle a between the straight line AB and a tangent line of a circle where the arc line CD is located is 36-40 degrees, and the radius of the transition arc line BC is 4-6 mm.

5. A big wind pressure spiral case that is used for lampblack absorber, integrated kitchen of claim 1 to 3 any, characterized in that: the edge contour line of the volute enclosing plate comprises an arc line DE, a central angle b corresponding to the arc line DE is 78-82 degrees, and the radius is 170-180 mm.

6. A big wind pressure spiral case that is used for lampblack absorber, integrated kitchen of claim 1 to 3 any, characterized in that: the edge contour line of the volute enclosing plate comprises an arc line EF, wherein a central angle c corresponding to the arc line EF is 85-90 degrees, and the radius is 200-210 mm.

7. A big wind pressure spiral case that is used for lampblack absorber, integrated kitchen of claim 1 to 3 any, characterized in that: the edge contour line of the volute enclosing plate comprises an arc line F 'G', the central angle d corresponding to the arc line F 'G' is 83-88 degrees, and the radius is 240-250 mm.

8. A big wind pressure spiral case that is used for lampblack absorber, integrated kitchen of claim 7, its characterized in that: one end of the arc line F ' G ' is provided with a transition arc line FF '.

9. A big wind pressure spiral case that is used for lampblack absorber, integrated kitchen of claim 7, its characterized in that: the other end of the arc line F ' G ' is provided with a transition arc line G ' G.

10. A big wind pressure spiral case that is used for lampblack absorber, integrated kitchen of claim 1 to 3 any, characterized in that: the edge contour line of the volute enclosing plate comprises an arc line GH, the central angle e corresponding to the arc line GH is 4-6 degrees, and the radius is 1845-1855 mm.