CN217952417U

CN217952417U - Smoke exhaust ventilator

Info

Publication number: CN217952417U
Application number: CN202222150294.9U
Authority: CN
Inventors: 任富佳; 陈志涛; 郁明跃; 吕春明; 余国成; 李哲宇; 陈飞; 胡娇
Original assignee: Hangzhou Robam Appliances Co Ltd
Current assignee: Hangzhou Robam Appliances Co Ltd
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2022-12-02
Anticipated expiration: 2032-08-15

Abstract

The utility model discloses a range hood belongs to household electrical appliances technical field, for solving the high scheduling problem design of impeller drive arrangement load of current range hood. The utility model provides a range hood includes: a box body of a smoke machine; the air duct shell is arranged in the box body of the range hood and is provided with two air inlet through holes and at least one air outlet; the two impellers are respectively arranged in the two air inlet through holes; the smoke collecting hood is arranged at the bottom of the smoke machine box body; and the air deflector is used for opening or closing the oil smoke inlet arranged on the smoke collecting hood, is in a concave curved surface shape and can slide relative to the smoke collecting hood. The air deflector of the range hood provided by the utility model is in a concave curved surface shape, and the smoke collecting effect is good; the two impellers are arranged, so that the thickness of the whole range hood can be reduced on the premise of not influencing the oil fume extraction efficiency, and the range hood becomes thinner.

Description

Smoke exhaust ventilator

Technical Field

The utility model relates to a household electrical appliances technical field especially relates to range hood.

Background

The range hood is a household appliance which can collect and discharge indoor cooking oil fume to the outside. The range hood generally includes an air duct housing and an impeller, an air inlet and an air outlet are formed on the air duct housing, negative pressure is formed inside the air duct housing when the impeller rotates, and the oil smoke enters the air duct housing from the air inlet and is then discharged from the air outlet.

In order to thoroughly collect indoor oil smoke, a telescopic flat-plate air deflector is arranged on the existing part of the range hood. When oil smoke needs to be discharged, the air deflector extends out, the air outlet is completely opened, and the smoke collecting area of the air deflector is large; after the oil smoke is exhausted, the air deflector is reset, the air outlet is completely closed, and the appearance is attractive.

The range hood has the following defects: the oil smoke may overflow along the edge of the air deflector, and the smoke collecting effect is poor; in order to improve the power, a larger fan needs to be installed, so that the whole machine is large in size and large in occupied space.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a range hood, it is effectual to hold together the cigarette, and the complete machine is thinner.

To achieve the purpose, on one hand, the utility model adopts the following technical scheme:

a range hood, comprising: a smoke exhaust box body; the air duct shell is arranged in the box body of the range hood, and is provided with two air inlet through holes and at least one air outlet; the two impellers are respectively arranged in the two air inlet through holes; the smoke collecting hood is arranged at the bottom of the smoke machine box body; and the air deflector is used for opening or closing the oil smoke inlet arranged on the smoke collecting hood, is in a concave curved surface shape and can slide relative to the smoke collecting hood.

In one preferred embodiment, the range hood further comprises an arc-shaped sliding rail, the air deflector is connected with a sliding block through a fixed block, and the sliding block is connected with the sliding rail in a sliding manner.

In a preferred embodiment, the range hood further comprises a driving motor and a driving connecting rod, one end of the driving connecting rod is connected to an output shaft of the driving motor, and the other end of the driving connecting rod is hinged to the air deflector.

In a preferred embodiment, the air deflector is provided with two sliding blocks, and the two sliding blocks are symmetrically arranged relative to the driving motor and the driving connecting rod.

In one preferred embodiment, the cross section of the slide rail is C-shaped, the opening is located on the bottom surface of the slide rail, and the slider is arranged in the slide rail in a penetrating manner and can move along the extending direction of the slide rail.

In one preferred embodiment, two independent air exhaust channels are formed in the air duct shell, two air outlets are formed in the air duct shell, and each air exhaust channel is connected between one air inlet through hole and one air outlet.

In a preferred embodiment, the two air exhaust channels are symmetrically arranged, and the rotation directions of the two impellers are opposite.

In one preferred embodiment, a partition board is arranged in the air duct shell, and the partition board divides the inner part of the air duct shell into two mutually independent air exhaust channels.

In one preferred embodiment, the partition plate is provided with a reinforcing rib.

In one preferred embodiment, the range hood further comprises two valve plates, the two valve plates are mounted on the air duct shell, and the valve plates are configured to open or close the air outlet.

The utility model provides a range hood is including being the aviation baffle of concave curved surface form, and the decurrent aviation baffle border of slope can change the direction of motion of oil smoke, makes the oil smoke can more ground in the negative pressure region, holds together cigarette effectual, avoids the oil smoke to locate the excessive from the aviation baffle border. The range hood is provided with the two impellers, so that the thickness of the whole range hood can be reduced on the premise of not influencing the oil smoke extraction efficiency, the range hood becomes thinner, the appearance is more attractive, the range hood can be hidden in a multi-style cabinet, and the integrity and consistency of interior decoration can be kept.

Drawings

Fig. 1 is a schematic structural diagram of a range hood according to an embodiment of the present invention;

FIG. 2 is an exploded view of an air duct assembly according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of an air duct housing and valve plate assembly according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a first air deflector according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a second air deflector according to an embodiment of the present invention.

In the figure:

1. an air duct housing; 2. an impeller; 3. a drive device; 4. a valve plate; 5. a smoke collecting hood; 6. an air deflector; 7. a box body of a smoke machine; 8. a slide rail; 11. an air inlet through hole; 12. an air outlet; 13. an air exhaust channel; 14. a partition plate; 51. a lampblack inlet; 61. a fixed block; 62. a slider; 91. a drive motor; 92. the connecting rod is driven.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1 to 3, the range hood disclosed in this embodiment includes a hood body 7, an air duct housing 1, two impellers 2, two driving devices 3, two valve plates 4, a smoke collecting hood 5, an air deflector 6, and a control device (not shown). Wherein, the air duct shell 1 is arranged in the smoke machine box body 7; the air duct shell 1 is provided with two air inlet through holes 11 and at least one air outlet 12, the two impellers 2 are respectively arranged in the two air inlet through holes 11, each impeller 2 is connected to one driving device 3, and the driving devices 3 are fixed on the air duct shell 1 through screws; two valve plates 4 are respectively hinged on the air duct shell 1 and can swing around the hinge shaft, and the valve plates 4 are configured to open or close the air outlet 12. The smoke collecting hood 5 is arranged at the bottom of the smoke exhaust box body 7, and the air deflector 6 is in a concave curved surface shape and can slide relative to the smoke collecting hood 5 so as to open or close a smoke inlet 51 arranged on the smoke collecting hood 5. In addition, when the air deflector 6 slides out, the area of the negative pressure area can be increased, the smoking effect is improved, and the indoor oil smoke is discharged more thoroughly. It should be noted that other structures of the range hood of the present embodiment are substantially the same as the structures of the existing range hoods, and are not described herein again, and the corresponding structures of the existing range hoods can all be used in the range hood of the present embodiment.

When oil smoke collides with the air deflector 6, the oil smoke can move along the bottom surface of the air deflector 6, because the air deflector 6 is in an upwards concave curved surface shape, the tangent line of the edge of the air deflector 6 inclines downwards or even vertically downwards, the oil smoke cannot completely and directly overflow out of the air deflector 6 at the edge of the air deflector 6, most of the oil smoke is still in a smoke gathering area of the air deflector 6, the oil smoke gathering effect is good, and the oil smoke absorption is thorough.

The range hood comprises two impellers 2 and two driving devices 3, the two impellers 2 work together to replace a large-size impeller, the thickness of the air duct shell 1 is reduced under the condition that performance indexes are not influenced, and the range hood in an ultrathin form is favorably manufactured. The range hood can exhaust gas to the outdoor through the pipeline, can process the air polluted by oil smoke and send the processed air back to the indoor again, and has wide application range.

The specific structure for realizing the sliding of the air deflector 6 relative to the fume collecting hood 5 is not limited, and preferably, as shown in fig. 4, the range hood further includes an arc-shaped slide rail 8, the air deflector 6 is connected with a slide block 62 through a fixed block 61, the slide block 62 is slidably connected with the slide rail 8, and the slide rail 8 is fixed on the inner side of the fume collecting hood 5 through a screw. The arc-shaped slide rail 8 is matched with the curved air deflector 6, so that the air deflector 6 is prevented from being clamped in the sliding process.

The specific shape of the slide rail 8 is not limited, and the slide block 62 can be conveniently installed and slid. Preferably, the slide rail 8 has a C-shaped cross section, and the opening is located on the bottom surface of the slide rail 8. The slide rail 8 is provided with balls therein, and the slider 62 is inserted into the slide rail 8 and can move along the extending direction of the slide rail 8. The slider 62 is more stable in structure after being installed, and the bearing capacity of slide rail 8 is stronger, and after the slider 62 outwards slided a certain distance along slide rail 8, can not make aviation baffle 6 incline because of the barycenter skew of aviation baffle 6.

The user can manually drag the front side edge of the air deflector 6 to slide the air deflector, the energy consumption is low, the manufacturing cost of the range hood is low, the range hood is inconvenient to use, and the air deflector 6 can not be dragged by people such as old people, children and the like which lack strength or have insufficient height. In order to solve the problem, an electric mode may also be adopted, as shown in fig. 5, the range hood further includes a driving motor 91 and a driving connecting rod 92, one end of the driving connecting rod 92 is connected to an output shaft of the driving motor 91, and the other end of the driving connecting rod 92 is hinged on the air deflector 6. The driving motor 91 is connected to the control device, and can automatically extend out or retract into the output shaft, so that the air deflector 6 is automatically opened and closed.

Two sliders 62 are arranged on the air deflector 6, the two sliders 62 are symmetrically arranged relative to the driving motor 91 and the driving connecting rod 92, power on two sides of the air deflector 6 is uniform, the situation that the single-side closing is not tight is avoided, the appearance is more attractive, and the service life of the driving motor 91 is long.

On the basis of the above structure, as shown in fig. 3, two independent air exhaust channels 13 are formed in the air duct housing 1, two air outlets 12 are formed on the air duct housing 1, and each air exhaust channel 13 is connected between one air inlet through hole 11 and one air outlet 12. The two air exhaust channels 13 are independent from each other, so that mutual interference when the two impellers 2 do work can be reduced, and turbulence generated by airflow is avoided.

The specific manner of forming the two mutually independent exhaust air passages 13 is not limited, and it is preferable to provide a partition 14 in the middle of the air duct housing 1 so as to divide the inside of the air duct housing 1 into two mutually independent portions. The two air exhaust channels 13 are symmetrically arranged, the rotating directions of the two impellers 2 are opposite, and the two impellers 2 can mutually offset the vibration of the air duct shell 1 caused by rotation, so that the noise can be effectively reduced.

The partition plate 14 is provided with a reinforcing rib (not shown), so that the flaky partition plate 14 can be prevented from being deflected or bent under the action of heavy pressure, the whole air duct shell 1 has better strength, the application range is wide, and the service life is long.

Note that the above description is only for the preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. Range hood, its characterized in that includes:

a smoke machine box body (7);

the air duct shell (1) is arranged in the smoke machine box body (7), and two air inlet through holes (11) and at least one air outlet (12) are formed in the air duct shell (1);

the two impellers (2) are respectively arranged in the two air inlet through holes (11);

the smoke collecting hood (5) is arranged at the bottom of the smoke machine box body (7); and the number of the first and second groups,

the air guide plate (6) is used for opening or closing an oil smoke inlet (51) arranged on the smoke collection cover (5), and the air guide plate (6) is in a concave curved surface shape and can slide relative to the smoke collection cover (5).

2. The range hood according to claim 1, further comprising an arc-shaped slide rail (8), wherein the air deflector (6) is connected with a slide block (62) through a fixed block (61), and the slide block (62) is slidably connected with the slide rail (8).

3. The range hood according to claim 2, further comprising a driving motor (91) and a driving connecting rod (92), wherein one end of the driving connecting rod (92) is connected to an output shaft of the driving motor (91), and the other end of the driving connecting rod (92) is hinged to the air deflector (6).

4. The range hood according to claim 3, wherein two sliding blocks (62) are arranged on the air deflector (6), and the two sliding blocks (62) are symmetrically arranged relative to the driving motor (91) and the driving connecting rod (92).

5. The range hood according to claim 2, wherein the cross section of the slide rail (8) is C-shaped, the opening is located on the bottom surface of the slide rail (8), and the slider (62) is inserted into the slide rail (8) and can move along the extending direction of the slide rail (8).

6. The range hood according to any one of claims 1 to 5, wherein two independent air exhaust channels (13) are formed in the air duct housing (1), two air outlets (12) are formed on the air duct housing (1), and each air exhaust channel (13) is connected between one air inlet through hole (11) and one air outlet (12).

7. The extractor hood according to claim 6, characterized in that the two exhaust channels (13) are symmetrically arranged, and the rotation directions of the two impellers (2) are opposite.

8. The range hood according to claim 6, wherein a partition plate (14) is arranged in the air duct housing (1), and the partition plate (14) divides the interior of the air duct housing (1) into two mutually independent exhaust channels (13).

9. The range hood according to claim 8, wherein the partition (14) is provided with a reinforcing rib.

10. The range hood according to any one of claims 1 to 5, further comprising two valve plates (4) mounted on the air duct housing (1), wherein the valve plates (4) are configured to open or close the air outlet (12).