CN218119841U

CN218119841U - Smoke exhaust ventilator

Info

Publication number: CN218119841U
Application number: CN202221541294.5U
Authority: CN
Inventors: 张强; Yj韦思巴思
Original assignee: BSH Electrical Appliances Jiangsu Co Ltd; BSH Hausgeraete GmbH
Current assignee: BSH Electrical Appliances Jiangsu Co Ltd; BSH Hausgeraete GmbH
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-12-23
Anticipated expiration: 2032-06-20

Abstract

The application provides a modified smoke ventilator. One embodiment of the application relates to a range hood, which comprises a light-transmitting wall body (2), a projection cavity (6) hidden and arranged at the rear side of the light-transmitting wall body (2), and a projection device (3) arranged in the projection cavity (6); the projection device (3) is arranged to project visual contents (1) towards the light-transmitting wall body (2) for a user positioned at the front side of the light-transmitting wall body (2) to see. Therefore, the large-screen display is convenient to realize, and the cost is reduced.

Description

Smoke exhaust ventilator

[ technical field ] A

The application relates to the field of range hoods.

[ background of the invention ]

In asian regions, the amount of oil in the smoke produced during cooking is particularly high due to traditional cooking practices of stir-frying. Therefore, a range hood for exhausting oil smoke generated during cooking becomes an important household appliance essential in daily life at home. With the continuous improvement of the requirements of people on the living quality, the range hood is also continuously upgraded and improved. For example, large screen display has become a technical hotspot in the field of range hoods to meet the audiovisual requirements of users such as entertainment and intelligent interaction. However, the existing range hood is generally provided with a liquid crystal display screen which is directly embedded on the range hood, and the cost is high. Furthermore, the display screen is easily greasy but not easy to clean.

Unless otherwise supported by sufficient evidence, the prior art described herein is not meant to be an admission that such prior art is widely known to those of ordinary skill in the art to which this application pertains prior to the filing date of the present application.

[ summary of the invention ]

It is an object of embodiments of the present application to address at least one of the above technical problems and to provide an improved range hood.

One embodiment of the application relates to a range hood, which comprises a light-transmitting wall body, a projection cavity hidden behind the light-transmitting wall body and a projection device arranged in the projection cavity; the projection device is arranged to be suitable for projecting visual contents to the light-transmitting wall body so as to be seen by a user positioned at the front side of the light-transmitting wall body. Therefore, the large-screen display is convenient to realize, and the cost is reduced.

In one possible design, the projection cavity is arranged to be isolated from the flow of cooking fumes extracted by the range hood. Therefore, the projection device is also isolated from the oil fume flow pumped and exhausted by the range hood, and the cleaning of the display area can be completed by cleaning the outer surface of the light-transmitting wall body.

In one possible design, the smoke guide device further comprises a movable smoke guide plate and a driving module; the movable smoke guide plate is suitable for being switched between a first position and a second position under the driving of the driving module; when the movable smoke guide plate is positioned at the first position, the movable smoke guide plate seals the air inlet of the range hood; when the movable smoke guide plate is located at the second position, the movable smoke guide plate opens the air inlet, and the movable smoke guide plate extends out to form an eaves part extending in a direction away from the range hood; the eaves portion separates the light-transmitting wall body from the air inlet. Thus, the eaves block the flow of fumes, helping to keep the display area clean.

In one possible design, the range hood is a side draft range hood; the outer surface of the light-transmitting wall body is used as an appearance surface of the range hood; the light-transmitting wall body is vertically arranged or obliquely downwards arranged from front to back; the air inlet is arranged below the light-transmitting wall body; when the movable smoke guide plate is located at the first position, the upper edge of the movable smoke guide plate is connected with the bottom edge of the light-transmitting wall body, and the outer surface of the movable smoke guide plate is coplanar with the outer surface of the light-transmitting wall body; when the movable smoke guide plate is switched from the first position to the second position, the bottom edge of the movable smoke guide plate is lifted around the upper edge to form the eave part.

In one possible design, the eaves extend in a horizontal direction. Therefore, the smoke gathering effect and the projection display effect are considered.

In one possible design, the projection cavity is provided with a mounting hole; the mounting hole is arranged to be suitable for the projection device to penetrate from outside to inside to be mounted in the projection cavity; when the projection device is arranged in the projection cavity, the projection device blocks the mounting hole; the mounting hole is arranged on the rear wall of the range hood, which is suitable for being attached to a wall.

In one possible design, the projection cavity is provided with a mounting hole; the mounting hole is arranged and suitable for allowing the projection device to penetrate from outside to inside and be mounted in the projection cavity; when the projection device is installed in the projection cavity, the projection device plugs the installation hole.

In a possible design, the projector further includes a driving device configured to drive the projector to perform position switching. Thereby, the position of the projection device is convenient to be flexibly adjusted based on specific needs.

In a possible design, when the projection device projects the visible content to the light-transmitting wall body, the overall outline of the projection light is in a quadrangular pyramid shape; the projection cavity is configured to match the overall profile of the projected light.

In one possible design, the left and right sides of the projection cavity are each provided with a gas flow channel adapted for the flow of oil flue gas therethrough. The air flow channel is arranged to well match the shape of the projection cavity, and the thickness of the range hood can be controlled.

In the present application, the expressions of orientation such as "front wall", "rear side", "front side", "outer surface", "lower side" and "bottom-up" are based on the usual usage state of the range hood, unless otherwise specified.

It should be noted that the appearances of "first" and "second" in this specification are for descriptive purposes only and are not intended to indicate relative importance; moreover, it is not a definition of the number of features defined in it; further, it is not a definition of a logical or sequential relationship to the features it defines.

The above summary of the present application is not intended to describe all possible implementations of the present application. Throughout this application, guidance is provided through lists of examples, which examples can be used in various possible combinations.

[ description of the drawings ]

The following drawings are merely illustrative and explanatory of the present application and do not limit the scope of the present application, wherein:

FIG. 1 is a schematic structural view of an embodiment of a range hood of the present application;

FIG. 2 is a diagram illustrating the effect of the projector of the embodiment of the range hood shown in FIG. 1 in an operating state;

FIG. 3 is a partial cross-sectional structural view of the range hood embodiment of FIG. 1;

fig. 4 is a state diagram of a variation of the structure shown in fig. 3.

Reference numerals:

1-visual content, 2-light-transmitting wall body, 3-projection device, 4-smoke collecting cover, 5-machine shell, 6-projection cavity, 7-movable smoke guide plate, 8-oil cup, 9-rear wall and 10-air inlet.

[ detailed description ] embodiments

To make the objects, solutions and advantages of the present application more clear, the present application will be further described with reference to the accompanying drawings and preferred embodiments.

The application provides a range hood embodiment, including collection petticoat pipe 4, fan, casing 5 and oil cup 8, as shown in fig. 1 to 4. The range hood is a side-draft range hood. The oil cup 8, the smoke collecting hood 4 and the casing 5 are arranged in sequence from bottom to top. The fan is arranged in the casing 5. A control unit is provided on the front wall of the cabinet 5. And the control unit is electrically connected with the fan. The user controls the fan by inputting a corresponding control instruction on the control unit.

The smoke collecting hood 4 includes a housing member, an air inlet 10, a movable smoke guide 7, a driving module, a light-transmitting wall 2, a projection cavity 6 hidden behind the light-transmitting wall 2, and a projection device 3 disposed in the projection cavity 6, as shown in fig. 1 to 4. And an air inlet 10 formed in the bottom front side region of the housing member. And a light-transmitting wall body 2 formed in an upper front region of the housing member.

A projection device 3, which is arranged and adapted to project visual content 1 in a direction from back to front towards the light-transmitting wall 2 for viewing by a user positioned at the front side of the light-transmitting wall 2. In particular, the light-transmitting wall 2 is a glass wall. As for "visual content 1", it can be in various content forms that can be displayed by projection technology, including but not limited to images, videos and/or texts. The rectangle indicated by reference numeral 1 in fig. 2 represents what a user positioned at the front side of the light-transmitting wall 2 (i.e. a user standing at the front side of the light-transmitting wall 2) can see. The user only needs to clean the outer surface of the light-transmitting wall body 2 in time, so that the 'screen' can be ensured to be clean, and clear visual contents 1 can be seen.

And a control unit electrically connected to the projection device 3. The user controls the projection device 3 by entering corresponding control instructions on the control unit.

And the movable smoke guide plate 7 is suitable for being switched between a first position and a second position under the driving of the driving module. When the movable smoke guide 7 is in the first position, the movable smoke guide 7 closes the air inlet 10 of the range hood, as shown in fig. 1 to 3. When the movable smoke guide 7 is in the second position, the movable smoke guide 7 opens the air inlet 10, and the movable smoke guide 7 protrudes to form a brim extending in a direction away from the range hood, as shown in fig. 4. And a brim portion for separating the light-transmitting wall body 2 from the air inlet 10. And a transparent wall 2 located above the eaves. And an air inlet 10 located below the eaves.

The outer surface of the light-transmitting wall 2 serves as an outer surface of the hood. The visual effect visible to a user positioned on the front side of the light-transmitting wall 2 is substantially as shown in figures 1 and 2, which includes the outer surface of the light-transmitting wall 2.

The light transmission wall body 2 is vertically arranged. The air inlet 10 is provided below the light-transmitting wall 2. When the movable smoke guide plate 7 is located at the first position, the upper edge of the movable smoke guide plate 7 is connected to the bottom edge of the light-transmitting wall 2, and the outer surface of the movable smoke guide plate 7 is coplanar with the outer surface of the light-transmitting wall 2 (i.e., the outer surface of the movable smoke guide plate 7 is located on the same plane as the outer surface of the light-transmitting wall 2), as shown in fig. 1 to 3, at this time, the movable smoke guide plate 7 is also vertically located. When the movable smoke guide 7 is switched from the first position to the second position, the bottom edge of the movable smoke guide 7 is raised around the upper edge to form an eaves (that is, the bottom edge of the movable smoke guide 7 is rotated around the upper edge to be raised upwards to form an eaves). When the movable smoke guide 7 is in the second position, as shown in figure 4, the eaves extend in a horizontal direction.

The projection cavity 6 is arranged to be isolated from the oil fume flow pumped by the range hood. Specifically, the projection cavity 6 is sealed, and the oil fume flow cannot flow into the projection cavity 6.

The projection device 3 is located at the innermost side of the projection cavity 6. The transparent wall 2 is located in front of the projection cavity 6. In fact, the light-transmitting wall 2 encloses the projection cavity 6. The projection cavity 6 is revealed by removing the light-transmitting wall 2, and the operation of removing or installing the projection device 3 can be performed.

The outline of the projection cavity 6, as indicated by the dashed line in fig. 1, is to be noted that this dashed line is used because the part indicated by the dashed line is not visible or is partially visible (depending on the glass of the light-transmitting wall 2) from the perspective shown in fig. 1. In fig. 2, four dotted lines are added on the basis of fig. 1, which represent the contour lines of the projection light generated when the projection apparatus is in the working state.

Between the wall of the projection cavity 6 and the rear wall 9 of the extractor hood, which is adapted to abut against the wall, there is provided a flow channel (not shown in the figures) adapted to allow the flow of oily fumes to pass through.

When the fan operates, negative pressure is generated to form oil smoke gas flow, and the oil smoke gas flow sequentially flows through the air inlet 10 and the air flow channel, then flows through the fan and is discharged into the common flue.

The foregoing is merely one embodiment of the present application and other embodiments may be devised by adding, deleting, modifying or replacing certain features. For example, the projection cavity 6 may be provided with a mounting hole; the mounting hole is arranged and suitable for allowing the projection device 3 to penetrate from outside to inside and be mounted in the projection cavity 6; when the projection device 3 is installed in the projection cavity 6, the projection device 3 blocks the installation hole. Preferably, the mounting hole is provided in a rear wall 9 of the range hood adapted to abut a wall. Therefore, the depth of the projection cavity 6 is increased to ensure the projection effect, and the projection device 3 is convenient to disassemble and assemble. Furthermore, when the projection device 3 projects the visual content 1 onto the transparent wall 2, the overall profile of the projection light is quadrangular pyramid. A projection cavity 6 configured to match the overall profile of the projected light; in other words, the shape of the projection cavity 6 matches the overall profile of the projection light, and the projection cavity 6 approximately exactly meets the propagation requirement of the projection light. The left side and the right side of the projection cavity 6 are provided with airflow channels suitable for oil smoke gas to flow through, and the airflow channels are isolated from the projection cavity 6. The air flow passages on the left and right sides of the projection cavity 6 are merged at the air inlet 10, and are also merged after flowing through the projection cavity 6.

For another example, the translucent wall 2 may be inclined downward from front to back. In other words, when the movable smoke guide 7 is in the first position, the front appearance surface of the side-suction type range hood is a slope, not a vertical plane as in the above-mentioned embodiment.

For another example, the projector apparatus may further include a driving device configured to drive the projector apparatus 3 to switch the position. And the driving device is arranged to drive the projection device 3 to move along the front and back direction, the left and right direction and/or the up and down direction.

The elements of the different embodiments may be combined with each other in any feasible manner to achieve the object of the application.

It should be additionally noted that the present application should not be construed as limited to the above-described embodiments, but rather should be construed to cover all possible embodiments as determined by the claims that follow when taken in conjunction with the disclosure herein. Therefore, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application are within the protection scope of the present application, unless departing from the content of the present application.

Claims

1. A smoke ventilator, its characterized in that:

the projection device comprises a light-transmitting wall body (2), a projection cavity (6) hidden at the rear side of the light-transmitting wall body (2), and a projection device (3) arranged in the projection cavity (6);

the projection device (3) is arranged to project visual content (1) towards the light-transmitting wall (2) for viewing by a user positioned at the front side of the light-transmitting wall (2).

2. The range hood of claim 1, wherein:

the projection cavity (6) is arranged to be isolated from the oil fume flow pumped by the range hood.

3. The range hood of claim 2, wherein:

the cigarette box also comprises a movable cigarette guide plate (7) and a driving module;

the movable smoke guide plate (7) is suitable for being switched between a first position and a second position under the driving of the driving module;

when the movable smoke guide plate (7) is at the first position, the movable smoke guide plate (7) closes the air inlet (10) of the range hood;

when the movable smoke guide plate (7) is located at the second position, the movable smoke guide plate (7) opens the air inlet (10), and the movable smoke guide plate (7) extends out to form an eaves extending in a direction away from the range hood;

the eaves part separates the light-transmitting wall body (2) from the air inlet (10).

4. The range hood of claim 3, wherein:

the range hood is a side-draft range hood;

the outer surface of the light-transmitting wall body (2) is used as an appearance surface of the range hood;

the light-transmitting wall body (2) is vertically arranged or obliquely downwards arranged from front to back;

the air inlet (10) is arranged below the light-transmitting wall body (2);

when the movable smoke guide plate (7) is located at the first position, the upper edge of the movable smoke guide plate (7) is connected with the bottom edge of the light-transmitting wall body (2), and the outer surface of the movable smoke guide plate (7) is coplanar with the outer surface of the light-transmitting wall body (2);

when the movable smoke guide plate (7) is switched from the first position to the second position, the bottom edge of the movable smoke guide plate (7) is lifted around the upper edge to form the eave part.

5. The range hood of claim 4, wherein:

the eaves extend in a horizontal direction.

6. The range hood of claim 4, wherein:

the projection cavity (6) is provided with a mounting hole;

the mounting hole is arranged and suitable for allowing the projection device (3) to penetrate from outside to inside and be mounted in the projection cavity (6);

when the projection device (3) is arranged in the projection cavity (6), the projection device (3) blocks the mounting hole;

the mounting hole is arranged on a rear wall (9) of the range hood, which is suitable for being attached to a wall.

7. The range hood of claim 2, wherein:

the projection cavity (6) is provided with a mounting hole;

when the projection device (3) is arranged in the projection cavity (6), the projection device (3) seals the mounting hole.

8. The range hood of claim 1, wherein:

the projector device also comprises a driving device which is set to be suitable for driving the projection device (3) to carry out position switching.

9. The range hood of any one of claims 1 to 8, wherein:

when the projection device (3) projects the visible content (1) to the light-transmitting wall body (2), the overall outline of the projection light is in a quadrangular pyramid shape;

the projection cavity (6) is configured to match the overall contour of the projection light.

10. The range hood of claim 9, wherein:

and airflow channels suitable for oil smoke gas to flow through are arranged on the left side and the right side of the projection cavity (6).