CN110925827A

CN110925827A - Side-draft range hood with underlying reverse fan system

Info

Publication number: CN110925827A
Application number: CN201911167455.1A
Authority: CN
Inventors: 梅德进; 封立兴
Original assignee: MICAN ELECTRIC APPLIANCE CO Ltd
Current assignee: MICAN ELECTRIC APPLIANCE CO Ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-03-27

Abstract

A side-draft range hood with a lower-mounted reverse fan system comprises a range hood box body, wherein the front surface of the range hood box body is provided with an air deflector and an operation panel, and the range hood box body is internally provided with the fan system; the fan system comprises a volute and a wind wheel arranged in the volute, a driving motor is fixedly arranged on a first side surface of the volute through a motor plate, a main smoke suction port is arranged on a second side surface of the volute and connected with the main air inlet through an air channel, the second side surface of the volute faces the back surface of the range hood box body, and the first side surface of the volute faces the direction of the air deflector and is fixed in the range hood box body. The invention has the beneficial effects that: the unique reverse fan system can ensure that the air inlet of the range hood is close to the bottom of the range hood as much as possible, so that the negative pressure area is moved downwards and is close to a cooker as much as possible, and the absorption rate of oil smoke is improved.

Description

Side-draft range hood with underlying reverse fan system

Technical Field

The invention relates to a range hood, in particular to a side-draft range hood with a lower reverse fan system.

Background

A range hood, also called a range hood, is a kitchen appliance for purifying a kitchen environment, and is capable of rapidly exhausting waste gas generated by combustion of a cooking range and oil smoke generated during cooking to the outside so as to purify the kitchen environment. According to the working principle of the range hood, the range hood can be divided into a top suction type range hood and a side suction type range hood. Wherein, because the collection mouth of side-draught lampblack absorber is closer to the source of oil smoke, make it can lock the oil smoke that produces in the very first time, smoke exhaust effect compares with the top suction, and the effect is comparatively ideal, therefore has received most of consumers' favor.

To better direct the smoke into the cigarette case, a deflector is typically provided on the front panel of the cigarette case. When the range hood works, the air deflector opens the smoke suction port, oil smoke is guided into the range hood shell through the smoke suction port, and purified smoke is discharged under the action of the centrifugal fan. However, in the existing side-suction range hood, in order to make the suction force of the centrifugal fan act on the smoke suction port more directly, the air inlet of the centrifugal fan is usually arranged towards the smoke suction port and is as close to the smoke suction port as possible. However, since the volume of the volute of the centrifugal fan is large, in order to match with the appearance design of the range hood, the smoke suction port is usually located at the middle upper part of the air deflector, so that the distance from the kitchen range is long. The oil smoke generated during cooking needs to flow upwards for a certain distance and then can enter a negative pressure area generated by a smoke suction port so as to be sucked and removed. Therefore, in the process of the oil smoke drifting upwards, more oil smoke escapes, so that the oil smoke suction rate of the range hood is low, and therefore, further improvement is needed.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a side-draft range hood with a lower reversed fan system, which has the advantages of simple structure, low production cost, high working efficiency and good oil smoke suction effect.

The object of the invention is achieved in the following way: the utility model provides a side-draught range hood of fan system is installed to formula of putting down which characterized in that: the range hood comprises a range hood box body, wherein the front surface of the range hood box body is provided with an air deflector and an operation panel, and a fan system is arranged in the range hood box body;

the air deflector is provided with a main air inlet close to the bottom of the range hood box body, and the main air inlet is connected with the fan system through an air duct;

the fan system comprises a volute and a wind wheel arranged inside the volute, a driving motor is fixedly arranged on a first side surface of the volute through a motor plate, a main shaft of the driving motor extends into the volute and is fixedly connected with the wind wheel, a main smoke suction port is arranged on a second side surface of the volute and is connected with a main air inlet through an air channel, the second side surface of the volute faces the back surface of the range hood box body, and the first side surface of the volute faces the direction of the wind deflector and is fixed in the range hood box body.

The main air inlet is covered with a main smoke baffle which is hinged on the air deflector and driven to open or close by a power mechanism.

An auxiliary air inlet is further formed in the upper end of the air deflector and is close to the operation panel, an auxiliary smoke baffle is hinged to the auxiliary air inlet, and the auxiliary smoke baffle is driven to be opened or closed by a power mechanism.

The auxiliary air inlet is communicated with an auxiliary smoking port arranged on the first side surface of the volute.

The air duct is arranged between the second side face of the volute and the back plate of the range hood box body, and an inclined guide plate is arranged between the bottom of the main air inlet and the back face of the range hood box body.

The back plate of the box body of the range hood is provided with a spoiler, and the spoiler is arranged towards the main smoke suction port of the volute.

Chamfers are arranged at the front end and the rear end of the bottom of the volute, and the angle of the chamfers is equal to the inclination angle of the air deflector, so that the chamfers at the front end of the volute are attached to the back of the air deflector.

The invention has the beneficial effects that: 1. simple structure, low production cost and improved market competitiveness. 2. The unique reverse fan system can ensure that the air inlet of the range hood is close to the bottom of the range hood as much as possible, so that the negative pressure area is moved downwards and is close to a cooker as much as possible, and the absorption rate of oil smoke is improved. 3. The auxiliary air inlet is arranged, so that the oil smoke escaping from the main air inlet can be absorbed from the auxiliary air inlet, and the oil smoke absorption rate is further improved. 4. After the fan system is reversely installed, the motor is located at the panel end, and when the fan system needs to be repaired or maintained, the volute does not need to be disassembled, so that later-stage maintenance is facilitated.

Drawings

FIG. 1 is a sectional view of the structure of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The utility model provides a side-draught range hood of fan system is installed to formula of putting down which characterized in that: the range hood comprises a range hood box body 1, wherein the front surface of the range hood box body 1 is provided with an air deflector 2 and an operation panel 3, and a fan system 6 is arranged in the range hood box body 1;

the air deflector 2 is provided with a main air inlet 4 near the bottom of the range hood box 1, and the main air inlet 4 is connected with a fan system 6 through an air duct 5;

the fan system 6 comprises a volute 61 and a wind wheel 62 arranged inside the volute 61, a driving motor 63 is fixedly mounted on a first side surface 65 of the volute 61 through a motor plate 64, a main shaft of the driving motor 63 extends into the volute 61 and is fixedly connected with the wind wheel 62, a main smoke suction port 67 is arranged on a second side surface 66 of the volute 61, the main smoke suction port 67 is connected with a main air inlet 4 through an air duct 5, the second side surface 66 of the volute 61 faces the back surface of the range hood box body 1, and the first side surface 65 of the volute 61 faces the direction of the wind deflector 2 and is fixed in the range hood box body 1.

The main air inlet 4 is covered with a main smoke baffle plate 41, and the main smoke baffle plate 41 is hinged on the air deflector 2 and driven to open or close by a power mechanism.

An auxiliary air inlet 7 is further formed in the upper end of the air guide plate 2 and is close to the operation panel 3, an auxiliary smoke baffle 71 is hinged to the auxiliary air inlet 7, and the auxiliary smoke baffle is driven to be opened or closed by a power mechanism. The power mechanism is a swing arm driven by a speed reducing motor, and when the swing arm rotates, the main smoke baffle and the auxiliary smoke baffle are driven to open and close.

The secondary air inlet 7 is communicated with a secondary smoking opening 72 arranged on the first side surface 65 of the volute 61.

The air duct 5 is arranged between the second side surface 66 of the volute 61 and the back plate of the range hood box 1, and an inclined guide plate 51 is arranged between the bottom of the main air inlet 4 and the back surface of the range hood box 1.

The back plate of the range hood box body 1 is provided with a spoiler 52, and the spoiler 52 is arranged towards the main smoke suction port 67 of the volute 61. The spoiler is the panel of a plurality of vertical distribution on the lampblack absorber backplate, and the panel has certain height, extends into the wind channel in, has played the rectification effect to the oil smoke gas stream, avoids the air current noise of flocculation form and shakes big drawback for lampblack absorber work is stable quiet more.

Chamfers 68 are arranged at the front end and the rear end of the bottom of the volute 61, and the angle of the chamfers 68 is equal to the inclination angle of the air deflector 2, so that the chamfers at the front end of the volute 61 are attached to the back of the air deflector 2.

The working principle is as follows: compared with the prior art, the structure in this case, with the fan system reverse installation of lampblack absorber inside the lampblack absorber, the main mouth 67 of smoking of both fan systems sets up towards the backplate of lampblack absorber, and such design makes and forms the wind channel between the backplate of main mouth and lampblack absorber, the wind channel can with be close to the main mouth UNICOM of smoking bottom the lampblack absorber. Compared with the prior art, the main smoke suction port is arranged close to the bottom of the range hood, so that a negative pressure area generated by the main smoke suction port is close to a pot as much as possible, and oil smoke generated by cooking can be sucked by the range hood within a very short time and distance, so that a large amount of oil smoke is prevented from escaping in the rising process. In addition, an auxiliary air inlet 7 is further formed in the upper end of the air deflector 2 and is close to the operation panel 3, an auxiliary smoke baffle 71 is hinged to the auxiliary air inlet 7, and small amount of lampblack escaping from the main air inlet is sucked by negative pressure generated by the auxiliary air inlet in the rising process, so that the sucking efficiency of the range hood is further improved.

Further: in order to make the oil smoke move more smoothly in the air duct and improve the working efficiency of the fan system, an inclined guide plate 51 is further arranged between the bottom of the main air inlet 4 and the back of the oil smoke machine box body 1. The design of guide plate makes after the oil smoke gets into the wind channel, can make whole wind channel more smooth-going along the inclined plane upward movement of guide plate, reduces the windage. And the front end and the rear end of the bottom of the volute 61 are provided with chamfers 68, the angle of the chamfers 68 is equal to the inclination angle of the air deflector 2, so that the chamfers at the front end of the volute 61 are attached to the back of the air deflector 2, the internal layout of the range hood is more compact, the wind resistance is reduced, the oil smoke moves more smoothly in an air channel, the working efficiency of the range hood is ensured, and the range hood can be widely popularized and used.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims

1. The utility model provides a side-draught range hood of fan system is installed to formula of putting down which characterized in that: the range hood comprises a range hood box body (1), wherein the front surface of the range hood box body (1) is provided with an air deflector (2) and an operation panel (3), and a fan system (6) is arranged in the range hood box body (1);

the air deflector (2) is provided with a main air inlet (4) close to the bottom of the range hood box body (1), and the main air inlet (4) is connected with a fan system (6) through an air duct (5);

the fan system (6) comprises a volute (61) and a wind wheel (62) arranged inside the volute (61), a driving motor (63) is fixedly mounted on a first side face (65) of the volute (61) through a motor plate (64), a main shaft of the driving motor (63) extends into the volute (61) and is fixedly connected with the wind wheel (62), a main smoke suction port (67) is formed in a second side face (66) of the volute (61), the main smoke suction port (67) is connected with a main air inlet (4) through an air duct (5), the second side face (66) of the volute (61) faces the back face of the range hood box body (1), and the first side face (65) of the volute (61) faces the direction of an air deflector (2) and is fixed in the range hood box body (1).

2. The side draft range hood with an underlying reverse fan system according to claim 1, wherein: the main air inlet (4) is covered with a main smoke baffle (41), and the main smoke baffle (41) is hinged to the air deflector (2) and driven to open or close by a power mechanism.

3. The side draft range hood with an underlying reverse fan system according to claim 1, wherein: an auxiliary air inlet (7) is further formed in the upper end of the air guide plate (2) and is close to the operation panel (3), an auxiliary smoke baffle (71) is hinged to the auxiliary air inlet (7), and the auxiliary smoke baffle is driven to be opened or closed by a power mechanism.

4. The side draft range hood with an underlying reverse fan system according to claim 3, wherein: the secondary air inlet (7) is communicated with a secondary smoking port (72) arranged on the first side surface (65) of the volute (61).

5. The side draft range hood with an underlying reverse fan system according to claim 1, wherein: the air duct (5) is arranged between the second side face (66) of the volute (61) and the back plate of the range hood box body (1), and an inclined guide plate (51) is arranged between the bottom of the main air inlet (4) and the back face of the range hood box body (1).

6. The side draft range hood with an underlying reverse fan system according to claim 1, wherein: the back plate of the range hood box body (1) is provided with a spoiler (52), and the spoiler (52) is arranged towards the main smoke suction port (67) of the volute (61).

7. The side draft range hood with an underlying reverse fan system according to claim 1, wherein: chamfers (68) are arranged at the front end and the rear end of the bottom of the volute (61), and the angle of the chamfers (68) is equal to the inclination angle of the air deflector (2), so that the chamfers at the front end of the volute (61) are attached to the back of the air deflector (2).