CN217464590U

CN217464590U - Smoke exhaust ventilator

Info

Publication number: CN217464590U
Application number: CN202221331126.3U
Authority: CN
Inventors: 任富佳; 邬泽凯; 付安荣; 吕春明; 胡娇
Original assignee: Hangzhou Robam Appliances Co Ltd
Current assignee: Hangzhou Robam Appliances Co Ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-09-20
Anticipated expiration: 2032-05-31

Abstract

The utility model relates to a range hood, include: a housing; the fan system is arranged in the shell; the smoke collection cavity is arranged at the bottom of the shell and comprises a first air inlet and a second air inlet, the first air inlet is communicated with the fan system to form a first exhaust channel, and the second air inlet is communicated with the fan system to form a second exhaust channel; the arc-shaped partition plate is rotatably arranged in the smoke collection cavity, the arc-shaped partition plate can close the first air exhaust channel when rotating to the first state, or the arc-shaped partition plate can close the second air exhaust channel when rotating to the second state, or the arc-shaped partition plate can open the first air exhaust channel and the second air exhaust channel simultaneously when rotating to the third state. The utility model can selectively close and separate the first exhaust channel or the second exhaust channel through the arc-shaped partition plate, increase the negative pressure at the air inlet at one side and improve the oil smoke absorption efficiency; the arc-shaped structure of the arc-shaped partition plate plays a role in guiding flow, so that air flow is sucked more smoothly.

Description

Smoke exhaust ventilator

Technical Field

The utility model relates to a kitchen appliance technical field especially relates to range hood.

Background

The range hood is an electric appliance for cleaning oil fume generated in cooking in a household kitchen, is also called as a range hood or a range hood, is a kitchen electric appliance for purifying the kitchen environment, is arranged above a kitchen range, and can quickly exhaust waste burnt by the range and oil fume harmful to human bodies generated in the cooking process, discharge the waste and the oil fume to the outside and reduce air pollution.

At present, the double-cavity smoke machine can select single-side air inlet and double-side air inlet according to needs due to the fact that the double-cavity smoke machine is provided with the two smoke collecting cavities, oil smoke suction and exhaust efficiency is improved to a certain extent, and the double-cavity smoke machine is widely applied to family kitchens. However, when air enters from one side, the smoke enters the smoke collecting cavity and then escapes to the other side, so that the efficiency of sucking and exhausting the oil smoke is not ideal.

SUMMERY OF THE UTILITY MODEL

In order to overcome the two-chamber cigarette machine, can escape to the opposite side after the flue gas gets into collection smoke cavity when the unilateral air inlet, lead to the not ideal problem of suction and exhaust oil smoke efficiency, the utility model provides a range hood.

According to the utility model provides a range hood, include:

a housing;

a fan system disposed within the housing;

the smoke collection cavity is arranged at the bottom of the shell and comprises a first air inlet and a second air inlet, the first air inlet is communicated with the fan system to form a first exhaust channel, and the second air inlet is communicated with the fan system to form a second exhaust channel;

the arc-shaped partition plate is rotatably arranged in the smoke collection cavity, the arc-shaped partition plate can close the first air exhaust channel when rotating to the first state, or the arc-shaped partition plate can close the second air exhaust channel when rotating to the second state, or the arc-shaped partition plate can open the first air exhaust channel and the second air exhaust channel simultaneously when rotating to the third state.

In some embodiments, the first state is the arcuate partition rotated to a left position adjacent the smoke collection chamber;

the second state is that the arc-shaped partition plate rotates to a position close to the right side of the smoke collection cavity;

the third state is that the arc-shaped partition plate rotates to the middle position of the smoke collection cavity.

In some embodiments, a surface of the arc-shaped partition plate facing away from the first air inlet or the second air inlet is a plane or an inward concave arc-shaped surface, and a surface of the arc-shaped partition plate facing the first air inlet or the second air inlet is an outward convex arc-shaped surface.

In some embodiments, the smoke collecting cavity includes a left side wall, a right side wall and a bottom wall, a hole communicated with the fan system is formed between the left side wall and the right side wall, and the bottom wall is provided with the first air inlet and the second air inlet.

In some embodiments, when the arched partition rotates to the first state, the arched partition contacts the left side wall and the bottom wall to close the first exhaust duct; or, when the arc-shaped partition plate rotates to the second state, the arc-shaped partition plate is in contact with the right side wall and the bottom wall so as to close the second air exhaust channel.

In some embodiments, a part of the left side wall, which is in contact with the arc-shaped partition plate, is provided with a buffer pad, or a part of the arc-shaped partition plate, which is in contact with the left side wall, is provided with a buffer pad; and/or the presence of a gas in the gas,

the part of the right side wall, which is in contact with the arc-shaped partition plate, is provided with a buffer pad, or the part of the arc-shaped partition plate, which is in contact with the right side wall, is provided with a buffer pad.

In some embodiments, further comprising:

and the driving mechanism is arranged on the shell and connected with the arc-shaped partition plate to drive the arc-shaped partition plate to rotate.

In some embodiments, the driving mechanism includes a motor, a transmission member, and a connecting member, the motor is fixed to the housing, one end of the connecting member is connected to the arc plate, the other end of the connecting member is connected to the transmission member, and the transmission member is in transmission connection with the motor.

In some embodiments, the transmission member includes a driving gear and a driven gear, the driving gear is mounted on the output shaft of the motor, the driven gear is fixedly connected with the connecting member, and the driven gear is in transmission connection with the driving gear.

In some embodiments, the transmission comprises a cam mounted on an output shaft of the motor, the cam being in contact with the link.

In some embodiments, further comprising: the first baffle is arranged at the first air inlet and can open or close the first air inlet;

and the second baffle is arranged at the second air inlet and can be opened or closed.

In some embodiments, further comprising: the smoke collecting hood is arranged at the bottom of the shell;

wherein at least a portion of the smoke collection chamber is located within the smoke collection hood.

The embodiment of the utility model provides a technical scheme can include following beneficial effect:

the arc-shaped partition plate is rotatably arranged in the smoke collection cavity and selectively closes and blocks the first exhaust channel or the second exhaust channel, so that negative pressure at the air inlet at one side is increased, oil smoke can be prevented from escaping from the air inlet at the other side, and the oil smoke suction efficiency is improved; the arc-shaped structure of the arc-shaped partition plate plays a role in guiding flow, so that air flow is sucked more smoothly.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a perspective view illustrating a range hood according to an exemplary embodiment of the present invention;

fig. 2 is a schematic diagram illustrating a change state of a range hood according to an exemplary embodiment of the present invention;

fig. 3 is a schematic view of a curved baffle structure and drive mechanism according to an exemplary embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

As shown in fig. 1 to 3, the present invention provides a range hood 100, which includes a housing 10, a fan system (not shown), a smoke collection chamber 20 and an arc-shaped partition 30.

The housing 10 is used to house a fan system. The range hood 100 may further include a smoke collecting cover 40, the smoke collecting cover 40 is disposed at the bottom of the housing 10, and the smoke collecting cover 20 plays a role of collecting smoke for the oil smoke generated in the cooking process, so as to prevent the smoke from escaping everywhere. The shape of the exhaust fume collecting hood 20 can be regular shapes such as rectangle, rhombus, etc., and also can be special-shaped, the utility model discloses do not limit to the shape, size, the material of exhaust fume collecting hood 20. At least a part of the smoke collecting chamber 20 is positioned in the smoke collecting hood 40, and the smoke collecting chamber 20 can be completely hidden in the smoke collecting hood 40 or partially protrude out of the smoke collecting hood 40.

The smoke collecting cavity 20 is arranged at the bottom of the shell 10 and is positioned in the smoke collecting cover 40, and the smoke collecting cavity 20 and the smoke collecting cover 40 are both communicated with the shell 10. The smoke collection chamber 20 includes a first air inlet 21 and a second air inlet 22, the first air inlet 21 is communicated with the fan system to form a first exhaust channel 51, and the second air inlet 22 is communicated with the fan system to form a second exhaust channel 52. The utility model can be a top-suction type double-cavity range hood with a smoke collecting hood as shown in the figure, or a side-suction type double-cavity range hood without the smoke collecting hood. In the side-draft double-cavity range hood, the smoke collection cavity is directly communicated with the bottom of the shell and air is supplied through a first air inlet and a second air inlet on the smoke collection cavity. In the following embodiments, a ceiling-mounted range hood is taken as an example for explanation, but the invention is not limited thereto. The first air inlet 21 and the second air inlet 22 are located at the bottom of the smoke collection cavity 20, and may be arranged at left and right intervals, and correspond to the left cooking range and the right cooking range of the stove respectively. When the range hood 100 is in operation, smoke enters the smoke collection chamber 20 and the inner chamber of the housing 10 from the first air inlet 21, is sucked by the fan system, and is discharged out through the air outlet 53, wherein a path through which the smoke enters the first air inlet 21 and is discharged out from the air outlet 53 is the first air discharge passage 51. Similarly, the smoke enters the smoke collecting chamber 20 and the inner chamber of the housing 10 from the second air inlet 22, is sucked by the fan system, and is discharged out through the air outlet 53, wherein the path of the smoke from the second air inlet 22 to the smoke from the air outlet 53 is the second air discharging channel 52.

The arc-shaped partition board 30 is rotatably arranged in the smoke collection cavity 20, the arc-shaped partition board 30 can close the first air exhaust channel 51 when rotating to the first state, or the arc-shaped partition board 30 can close the second air exhaust channel 52 when rotating to the second state, or the arc-shaped partition board 30 can open the first air exhaust channel 51 and the second air exhaust channel 52 simultaneously when rotating to the third state.

As shown in fig. 1 and 2, the arc partition 30 can rotate (swing) left and right, when only the right burner is used, the arc partition 30 swings left to the leftmost position, which is the first state, and at this time, the arc partition 30 closes the first exhaust passage 51 between the first air inlet 21 and the exhaust outlet 53, so as to block the first exhaust passage 51. The smoke enters through the second air inlet 22 on the right side, and the first exhaust channel 51 is blocked, so that on one hand, the first air inlet 21 is substantially closed, the negative pressure at the second air inlet 22 is increased, and the smoking efficiency is greatly improved; on the other hand, the smoke entering from the second air inlet 22 is also blocked by the arc-shaped partition plate 30, so that the smoke is prevented from escaping to the left side of the smoke collecting cavity 20, and the smoking effect is improved. Similarly, as shown in fig. 2, when only the left cooking range is used, the arc-shaped partition 30 swings right to the rightmost end position, which is the second state, and at this time, the arc-shaped partition 30 closes the second air exhaust channel 52 between the second air inlet 22 and the air outlet 53, so as to block the second air exhaust channel 52. The smoke enters through the first air inlet 21 on the left side, and the second air exhaust channel 51 is blocked, so that on one hand, the second air inlet 22 is substantially closed, the negative pressure at the first air inlet 21 is increased, and the smoking efficiency is greatly improved; on the other hand, the smoke entering the smoke collection cavity from the first air inlet 21 is also blocked by the arc-shaped partition plate 30, so that the smoke is prevented from escaping to the right side of the smoke collection cavity 20, and the smoking effect is improved.

In the case of both the left and right cooking ranges, the arc-shaped partition 30 can be rotated to the middle position (as shown in fig. 1), which is the third state, so that the first exhaust duct 51 and the second exhaust duct 52 are all opened, and the flue gas enters from the first air inlet 21 and the second air inlet 22 on the left and right sides, passes through the first exhaust duct 51 and the second exhaust duct 52, and is discharged by the duct fan system. Due to the arrangement of the arc-shaped partition plate 30, the arc-shaped partition plate can guide the entering smoke to flow, so that the smoke flows more smoothly, and the smoke suction efficiency is improved.

In some embodiments, the upper surface of the curved partition 30 is a flat surface or a concave curved surface. The upper surface of the arc-shaped partition plate 30 is a surface deviating from the first air inlet 21 or the second air inlet 22 and also a surface facing the fan system, and when the arc-shaped partition plate 30 is a plane or an inward concave arc surface, the plane or the inward concave arc surface is in an inclined state when the arc-shaped partition plate 30 is in the first state or the second state, so that the flue gas is guided, and the flue gas entering from the air inlet on the other side flows more smoothly. The cambered surface can also lighten the impact of airflow, disperse the impact force and reduce impact noise.

The lower surface of arc baffle 30 is the arcwall face of evagination, and the lower surface of arc baffle 30 also is the surface that deviates from the fan system for the surface towards first air intake 21 or second air intake 22, is in under the third state at arc baffle 30, and the arc of evagination is faced all can play the effect of water conservancy diversion to the flue gas that gets into from the first air intake 21 and the second air intake 22 of the left and right sides, can also play the effect that reduces the striking noise.

It should be noted that the third state of the arc-shaped partition 30 is not limited to the middle position of the arc-shaped partition 30 in the smoke collecting chamber 20, and may be any position between the leftmost position and the rightmost position, so that the opening size of the first air inlet channel 51 and/or the second air inlet channel 52 may be adjusted according to the smoke concentration conditions at the first air inlet 21 and the second air inlet 22, so as to meet different cooking requirements.

In some embodiments, the smoke collecting chamber 20 includes a left side wall 23, a right side wall 24 and a bottom wall 25, a hole (an opening at the top of the smoke collecting chamber 20) communicating with the fan system is formed between the left side wall 23 and the right side wall 24, and the bottom wall 25 is provided with a first air inlet 21 and a second air inlet 22.

In the first state where the arc partition plate 30 is rotated, the arc partition plate 30 is in contact with the left side wall 23 and the bottom wall 25 to close the first exhaust passage 51. In this first state, the upper portion of the lower surface of the curved partition 30 may contact the left side wall 23, and the lower portion of the lower surface of the curved partition 30 may contact the bottom wall 25, although the front surface of the curved partition 30 may have little or no gap or contact with the front wall of the smoke collection chamber 20, and the rear surface of the curved partition 30 may have little or no gap or contact with the rear wall of the delay chamber 20.

When the arched partition 30 is rotated to the second state, the arched partition 30 contacts the right side wall 24 and the bottom wall 25 to close the second exhaust duct 52. In this second state, the upper lower surface of the curved partition 30 may contact the right side wall 24, and the lower surface of the curved partition 30 may contact the bottom wall 25, although the front surface of the curved partition 30 may have little or no gap or contact with the front wall of the smoke collection chamber 20, and the rear surface of the curved partition 30 may have little or no gap or contact with the rear wall of the smoke collection chamber 20.

That is, the curved partition 30 cooperates with each inner wall of the smoke collecting chamber 20 to close off the first exhaust passage 51 or the second exhaust passage.

In some embodiments, to reduce the impact when the arc-shaped partition 30 cooperates with the smoke collection chamber 20, a cushion may be provided on the portion of the left side wall 23 that contacts the arc-shaped partition 30, or a cushion may be provided on the portion of the arc-shaped partition 30 that contacts the left side wall 23. And/or a buffer cushion is arranged at the contact part of the right side wall 24 and the arc-shaped partition plate 30, or a buffer cushion is arranged at the contact part of the arc-shaped partition plate and the right side wall. The cushion not only plays a role in alleviating impact, but also protects the smoke collecting chamber 20 and the arc-shaped partition plate 30. The arc-shaped partition plate 30 can also be used for separating the first air exhaust channel 51 from the second air exhaust channel 52 to play a sealing role, so that the negative pressure of the air inlet at one side is increased, and the oil smoke absorption efficiency is improved.

In some embodiments, the fume extraction system further comprises a drive mechanism. The driving mechanism is disposed on the housing 10, and is connected to the arc-shaped partition 30 to drive the arc-shaped partition 30 to rotate.

The driving mechanism may include a motor 71, a transmission member (e.g., a driving wheel and a driven wheel), and a connecting member 72, the motor is fixed to the housing 10, the driving wheel is mounted on an output shaft of the motor, one end of the connecting member is connected to the arc-shaped plate, the other end of the connecting member is connected to the driven wheel, and the driven wheel is in transmission connection with the driving wheel. The driving and driven wheels may be gears, for example, and the connecting member 72 may be a connecting rod. The motor rotates, the driving wheel rotates together to drive the driven wheel to rotate, and the connecting rod drives the arc-shaped partition plate 30 to rotate.

The transmission member may also be a cam mounted on the output shaft of the motor, the cam is in contact with the connecting member 72, the motor drives the cam to rotate, and the connecting member 72 and the arc-shaped partition plate 30 are driven to swing by changing the contact position of the outer contour of the cam and the connecting member 72.

In some embodiments, range hood 100 further includes a first baffle 61 and a second baffle 62. The first baffle 61 is disposed at the first air inlet 21, and the first baffle 61 can open or close the first air inlet 21. The second baffle 62 is disposed at the second air inlet 22, and the second baffle can open or close the second air inlet 22. The first baffle 61 and the second baffle 62 play a role in buffering and guiding the flue gas.

It is further understood that the terms "a" and "an" in the present disclosure mean two or more, and other terms are used analogously. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. The singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It will be further understood that the terms "first," "second," and the like are used to describe various information and that such information should not be limited by these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the terms "first," "second," and the like are fully interchangeable. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of the present invention.

It is further to be understood that while operations are depicted in the drawings in a particular order, this is not to be understood as requiring that such operations be performed in the particular order shown or in serial order, or that all illustrated operations be performed, to achieve desirable results. In certain environments, multitasking and parallel processing may be advantageous.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is to be limited only by the terms of the appended claims.

Claims

1. A range hood, comprising:

a housing;

a fan system disposed within the housing;

the arc-shaped partition plate is rotatably arranged in the smoke collection cavity and can close the first exhaust channel when rotating to a first state; the arc-shaped partition plate can close the second air exhaust channel when rotating to a second state; and when the arc-shaped partition plate rotates to a third state, the first air exhaust channel and the second air exhaust channel can be opened simultaneously.

2. The range hood of claim 1,

the first state is that the arc-shaped partition plate rotates to a position close to the left side of the smoke collection cavity;

3. The range hood of claim 1 or 2,

the surface of the arc-shaped partition plate, which is far away from the first air inlet or the second air inlet, is a plane or an inwards concave arc-shaped surface, and the surface of the arc-shaped partition plate, which faces the first air inlet or the second air inlet, is an outwards convex arc-shaped surface.

4. The range hood of claim 1 or 2,

the smoke collecting cavity comprises a left side wall, a right side wall and a bottom wall, a hole communicated with the fan system is formed between the left side wall and the right side wall, and the bottom wall is provided with the first air inlet and the second air inlet.

5. The range hood of claim 4,

when the arc-shaped partition plate rotates to a first state, the arc-shaped partition plate is in contact with the left side wall and the bottom wall to close the first exhaust channel; and when the arc-shaped partition plate rotates to a second state, the arc-shaped partition plate is contacted with the right side wall and the bottom wall so as to close the second air exhaust channel.

6. The range hood of claim 5,

a buffer cushion is arranged at the part of the left side wall, which is in contact with the arc-shaped partition plate; and/or the presence of a gas in the gas,

a buffer cushion is arranged at the contact part of the arc-shaped partition plate and the left side wall; and/or the presence of a gas in the gas,

a buffer cushion is arranged at the part of the right side wall, which is in contact with the arc-shaped partition plate; and/or the presence of a gas in the gas,

and a buffer pad is arranged at the contact part of the arc-shaped partition plate and the right side wall.

7. The range hood of claim 1, further comprising:

8. The range hood of claim 7,

the driving mechanism comprises a motor, a transmission part and a connecting part, wherein the motor is fixed on the shell, one end of the connecting part is connected with the arc-shaped partition plate, the other end of the connecting part is connected with the transmission part, and the transmission part is in transmission connection with the motor.

9. The range hood of claim 8,

the transmission part comprises a driving gear and a driven gear, the driving gear is installed on an output shaft of the motor, the driven gear is fixedly connected with the connecting piece, and the driven gear is in transmission connection with the driving gear.

10. The range hood of claim 8,

the transmission part comprises a cam arranged on an output shaft of the motor, and the cam is in contact with the connecting piece.