CN111351090A

CN111351090A - Smoke exhaust ventilator

Info

Publication number: CN111351090A
Application number: CN202010351397.4A
Authority: CN
Inventors: 谭柏豪; 马世涛; 何新奎; 王春旭; 蒋济武
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2020-06-30

Abstract

The invention belongs to the field of household appliances, and discloses a range hood, wherein the range hood (100) comprises: the guide plate (1) is concave upwards to form a smoke collection cavity, and the bottom of the smoke collection cavity is provided with a smoke collection cavity inlet; the opening plate module is positioned at the inlet of the smoke collection cavity and comprises a plurality of opening plates (3); and displacement mechanism for the drive the open close plate module switches between open mode and closed state under the closed state, it is a plurality of open close plate (3) connect gradually with the closure along transversely gather the smoke chamber entry, switch over to the in-process of open state, displacement mechanism drive is a plurality of open close plate (3) remove in order to open gather the smoke chamber entry. The displacement mechanism can drive the opening plate modules to be switched to the closed state so as to close the inlet of the smoke collection cavity, so that oil stains in the smoke machine are prevented from flowing out of the smoke machine downwards, the oil stains on the bottom surfaces of the opening plates are easy to clean, attractiveness can be guaranteed, and user experience is improved.

Description

Smoke exhaust ventilator

Technical Field

The invention relates to the technical field of household appliances, in particular to a range hood.

Background

The existing range hood is mostly concave on the guide plate to form a smoke collection cavity, after oil smoke is absorbed, a large amount of grease can be adhered to the concave surface of the guide plate, and the grease can flow downwards along the inner wall of the guide plate, so that oil stains are formed at the bottom of the guide plate, the appearance is not only influenced, but also can flow out of the range and drip on a cooking bench when being more serious, and poor user experience is caused.

Disclosure of Invention

Aiming at the defects or shortcomings in the prior art, the invention provides the range hood which can prevent internal oil stains from flowing out of the range hood downwards and ensure the attractiveness, so that the user experience is improved.

In order to achieve the above object, the present invention provides a range hood, comprising:

the guide plate is concave upwards to form a smoke collection cavity, and the bottom of the smoke collection cavity is provided with a smoke collection cavity inlet;

the opening plate module is positioned at the inlet of the smoke collection cavity and comprises a plurality of opening plates; and

displacement mechanism for the drive the open close plate module switches between open mode and closed mode under the closed mode, it is a plurality of the open close plate is along transversely connecting gradually with the closure collection smoke chamber entry, switching to the in-process of open mode, displacement mechanism drive is a plurality of the open close plate removes in order to open collection smoke chamber entry.

Optionally, the displacement mechanism comprises a pivoting mechanism for driving a plurality of the opening plates to pivot to open or close the smoke collection chamber inlet.

Optionally, during the process of switching the opening plate module to the open state, the pivoting mechanism drives the opening plates to be folded along the transverse direction, and during the process of switching the opening plate module to the closed state, the pivoting mechanism drives the opening plates to be unfolded along the transverse direction.

Optionally, the plurality of the opening plates are divided into two opening plate folding groups located on two lateral sides of the smoke collection cavity inlet, each opening plate folding group comprises an inner opening plate and an outer opening plate, the front end and the rear end of the lateral outer end of the outer opening plate are respectively and pivotally connected to the front side wall and the rear side wall of the guide plate, the front end and the rear end of the lateral inner end of the inner opening plate are respectively and laterally slidably connected to the front side wall and the rear side wall of the guide plate, the lateral inner end of the outer opening plate is pivotally connected to the lateral outer end of the inner opening plate, and the pivoting mechanism is used for driving the lateral outer end of the outer opening plate to pivot.

Optionally, in the open state, an included angle between the plate surfaces of the inner opening plate and the outer opening plate folded with each other is not more than 30 °.

Optionally, the pivot mechanism comprises a first pivot mechanism and a second pivot mechanism for driving the two folding plates to move respectively, and the first pivot mechanism and the second pivot mechanism operate independently.

Alternatively, the laterally inner end portion of the opening plate located at the laterally outermost side is pivoted downward relative to the laterally outer end portion in the process of switching the opening plate module to the open state.

Optionally, the maximum downward pivot angle of the opening plate located at the laterally outermost side is not less than 90 °.

Optionally, the range hood further includes a smoke probe for detecting a situation of smoke, and the range hood is configured to be capable of correspondingly controlling the displacement mechanism to operate according to the situation of smoke detected by the smoke probe.

Optionally, in the closed state, the bottom surfaces of a plurality of the opening plates connected in sequence in the transverse direction are aligned in the vertical direction.

In the invention, when the range hood works, the displacement mechanism drives the opening plate module to be switched to the opening state so as to open the inlet of the smoke collection cavity, so that external oil smoke can enter the smoke collection cavity and then enter the interior of the range hood. When range hood stopped the smoking, displacement mechanism drive open-close plate module switched to the closed state with closed collection smoke cavity entry to it is outer to block the inside greasy dirt of cigarette machine downwards outflow, and the oil stain on the bottom surface of a plurality of open-close plates is easily cleaned, can guarantee the aesthetic property, thereby promotes user experience.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of a range hood according to an embodiment of the present invention, in which a plywood module is in a closed state;

FIG. 2 is another schematic view of the range hood in FIG. 1, in which the inside open-close plate and the outside open-close plate in the open-close plate folding group on one lateral side of the range hood are folded in the lateral direction, and the inside open-close plate and the outside open-close plate in the open-close plate folding group on the other lateral side are unfolded in the lateral direction;

FIG. 3 is another schematic view of the range hood in FIG. 1, in which the inner opening plate and the outer opening plate of the opening plate folding groups on both lateral sides of the range hood are folded in the lateral direction;

FIG. 4 is a partial schematic view of the range hood of FIG. 1;

FIG. 5 is a partial schematic view of the range hood of FIG. 2;

FIG. 6 is a partial schematic view of the range hood of FIG. 3;

FIG. 7 is a partial exploded view of the range hood of FIG. 1;

fig. 8 is another partial schematic view of the range hood in fig. 1.

Description of reference numerals:

100 range hood

1 guide plate 2 air inlet filter screen

3-ply board 4 motor

5 transmission shaft 6 slide block

11 chute 12 pivot connection hole

31 inside open close board 32 outside open close board

33 opening-closing plate pivoting seat

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In embodiments of the invention, where the context requires otherwise, the use of directional terms such as "upper, lower, top and bottom" is generally intended in the orientation shown in the drawings or the positional relationship of the various components in a vertical, vertical or gravitational orientation.

The invention will be described in detail below with reference to exemplary embodiments and with reference to the accompanying drawings.

As shown in fig. 1 to 8, an exemplary embodiment of the present invention provides a range hood 100, where the range hood 100 includes a deflector 1, an opening plate module, and a displacement mechanism. Wherein, guide plate 1 is sunken in order to form the collection smoke chamber, and the top in collection smoke chamber is equipped with the air intake (air intake department can set up air intake filter screen 2 in order to be used for filtering the oil smoke) and the bottom is equipped with collection smoke chamber entry, and the oil smoke in the external environment can loop through collection smoke chamber entry, collection smoke chamber and air intake in order to get into inside the cigarette machine. The plywood module is located collection smoke cavity entrance and includes a plurality of plywood 3, and both can have restraint each other between a plurality of plywood 3, also can mutually independent setting. The displacement mechanism is used for driving the opening plate module to be switched between an opening state and a closing state, under the closing state, the opening plates 3 are connected in sequence along the transverse direction to close the smoke collection cavity inlet, namely the smoke collection cavity inlet is completely closed at the moment, and in the process of switching to the opening state, the displacement mechanism drives the opening plates 3 to move to open the smoke collection cavity inlet.

Through setting up above-mentioned structure, when range hood 100 began work, displacement mechanism can drive the open close board module and switch to the open mode in order to open the collection smoke chamber entry, and collection smoke chamber entrance produces the negative pressure this moment to inhale the cigarette in the external environment inside the range hood. When range hood stops the smoking, displacement mechanism can drive the cut-off board module and switch to the closed state with closed collection smoke cavity entry, even flow downwards such as greasy dirt or the inside greasy dirt of cigarette machine on the inner wall of guide plate 1 attached to this moment, also can be blockked and can not flow outside along horizontal a plurality of cut-off boards 3 that connect gradually, thereby prevent that the greasy dirt from dripping on the top of a kitchen range and causing the pollution, and the oil stain on the bottom surface of a plurality of cut-off boards 3 is easily cleaned, can guarantee the aesthetic property, thereby promote user experience.

In one embodiment, the displacement mechanism may comprise a pivoting mechanism for driving the plurality of opening plates 3 to pivot to open or close the smoke collection chamber entrance. For example, the pivot mechanisms can be provided in plurality, the pivot mechanisms drive the opening plates 3 to pivot in a one-to-one correspondence manner, when the inlet of the smoke collection cavity is opened, the opening plates 3 divide the inlet of the smoke collection cavity into a plurality of flow dividing inlets which are sequentially separated along the transverse direction, at the moment, the opening plates 3 play a role in rectification, and the unstable airflow caused by the overlarge opening area of the inlet of the smoke collection cavity can be avoided, so that the range hood 100 can continuously and stably smoke. Alternatively, the number of the pivoting mechanisms may not correspond to the number of the opening plates 3, that is, a smaller number of pivoting mechanisms may be provided to drive a plurality of opening plates 3 to pivot, and the following will describe in detail an alternative embodiment thereof. Alternatively, the displacement mechanism may also include other types of mechanisms to drive the plurality of opening plates 3 to open and close in a non-pivoting manner, such as lifting or translation, and the other types of mechanisms may also cooperate with the pivoting mechanism.

It follows that the exemplary embodiment of the present invention does not limit the specific type of displacement mechanism, i.e., the specific opening and closing manner of the opening and closing plate 3, as long as it is ensured that the plurality of opening and closing plates 3 can be moved to open or close the smoke collection chamber entrance.

In one embodiment, the pivot mechanism can drive the plurality of opening boards 3 to fold in the lateral direction during the switching of the opening board module to the opened state, and the lateral folding action is driven by the pivot action. During the switching process of the opening plate module to the closed state, the pivoting mechanism can drive the opening plates 3 to be unfolded along the transverse direction, and the transverse unfolding action is driven by the pivoting action.

In other words, the pivoting mechanism in the present embodiment can fold or unfold the plurality of opening plates 3 in the lateral direction while driving the plurality of opening plates 3 to pivot, that is, by a pivoting folding action to open or close the smoke collection chamber entrance.

In one embodiment, referring to fig. 1 to 3, the plurality of opening plates 3 are divided into two opening plate folding groups located on both lateral sides of the inlet of the smoke collecting chamber, each opening plate folding group including a respective inner opening plate 31 and outer opening plate 32, and the inner opening plate 31 and the outer opening plate 32 are sequentially arranged in the lateral direction. Wherein, the front and back both ends of the horizontal outer tip of outside open close plate 32 are the pivot connection respectively in the front and back lateral wall of guide plate 1, and the front and back both ends of the horizontal inner tip of inboard open plate 31 form the horizontal slip connection with the front and back lateral wall of guide plate 1 respectively, and the horizontal inner tip of outside open plate 32 and the horizontal outer tip pivot connection of inboard open plate 31. At this time, the pivoting mechanism is used to drive the laterally outer end portion of the outer opening plate 32 to pivot.

For example, referring to the drawings, the sliding groove 11 and the pivot connection hole 12 may be provided on both the front and rear side walls of the baffle 1, and the sliding groove 11 and the pivot connection hole 12 on the same side wall may be provided at intervals in the lateral direction. The top surfaces of the inner opening plate 31 and the outer opening plate 32 are provided with opening plate pivoting seats 33 distributed at four corners, and each opening plate pivoting seat 33 is provided with a pivoting seat through hole penetrating along the front-back direction. The two hinge plate pivot bases 33 at the transverse inner end of the inner hinge plate 31 are both connected with the sliding blocks 6, that is, the sliding blocks 6 are penetrated and connected on the corresponding pivot base through holes, and the sliding blocks 6 can transversely slide in the corresponding sliding grooves 11. Two opening plate pivot bases 33 located at the lateral outer end portions of the inside opening plates 31 are pivotally connected to two opening plate pivot bases 33 located at the lateral inner end portions of the outside opening plates 32 in a one-to-one correspondence. The pivoting mechanism comprises a motor 4 and a transmission shaft 5, and the transmission shaft 5 sequentially penetrates through two pivot seat through holes on the transverse outer end part of the outer opening plate 32 and can be driven by the motor 4 to pivot, so that the outer opening plate 32 can be driven to pivot. The motor 4 can be fixedly mounted on the air deflector 1, for example on the front or rear side wall of the air deflector 1.

In the present embodiment, when the pivoting mechanism drives the lateral outer end portion of the outer opening plate 32 to pivot outward, the outer opening plate 32 pivots outward as a whole, and thus the lateral inner end portion of the outer opening plate 32 displaces laterally outward and vertically, and simultaneously drives the inner opening plate 31 to displace laterally outward and vertically. And because the horizontal inner end of the outside open close plate 32 is pivotally connected with the horizontal outer end of the inside open close plate 31, the inside open close plate 31 can also pivot outwards, so as to drive the horizontal inner end of the inside open close plate 31 to move outwards along the front and back side walls of the deflector 1, and finally the outside open close plate 32 and the inside open close plate 31 are mutually folded to open the inlet of the smoke collection cavity. Similarly, when the pivoting mechanism drives the laterally outer end portion of the outer opening plate 32 to pivot inward, the outer opening plate 32 and the inner opening plate 31 can be caused to spread apart from each other to close the smoke collection chamber inlet.

In one embodiment, in order to ensure that the opening area of the smoke collection chamber inlet when opened is large enough to improve the smoking efficiency, the plate surface angle of the inner opening plate 31 and the outer opening plate 32 folded with each other may be set to not more than 30 ° when the opening plate module is in the opened state. In other words, when the plate included angles of the inner side opening plate 31 and the outer side opening plate 32 in the two opening plate folding groups are all small, the opening area of the inlet of the smoke collection cavity can be ensured to be large, so that the flow of oil smoke gas flow can be increased, and the smoking efficiency is improved.

In one embodiment, the pivot mechanism includes a first pivot mechanism and a second pivot mechanism for driving the two folding groups of opening plates to move respectively, and the first pivot mechanism and the second pivot mechanism operate independently of each other. Under the structure, the range hood 100 can better adapt to different oil smoke environments.

Specifically, when the range hood 100 is in the shutdown state, referring to fig. 1, both the folding plates are in the closed state, and the smoke collection cavity inlet is completely closed at this time. When oil smoke is generated at one side of the cooking bench and no oil smoke is generated at the other side, referring to fig. 2, the opening plate folding group at one side of the range hood 100 (driven by one of the first pivoting mechanism or the second pivoting mechanism) is switched to the open state, and the opening plate folding group at the other side maintains the closed state (at this time, the other one of the first pivoting mechanism or the second pivoting mechanism is not operated), so that the smoking speed at one side can be effectively increased, and the smoke can be more specifically smoked. When oil smoke is generated on both lateral sides of the cooking bench, referring to fig. 3, the two folding plates are switched to the open state under the driving of the first pivoting mechanism and the second pivoting mechanism, so that efficient smoking on both sides of the cooking bench is ensured.

In one embodiment, the laterally inner end portion of the opening plate 3 located at the laterally outermost side is pivoted downward relative to the laterally outer end portion in the process of switching the opening plate module to the open state. For example, in the range hood 100 provided with the two opening plate folding groups, the laterally inner end portion of the outer opening plate 32 is pivoted downward relative to the laterally outer end portion in the process of switching the opening plate module to the opened state. Under the structure, the negative pressure area at the inlet of the smoke collection cavity is equivalently moved downwards, so that the flow path of the oil smoke in the external environment entering the inlet of the smoke collection cavity is shortened, and the amount of the externally scattered oil smoke is reduced. In addition, in some better kitchen environment of ventilation, through making the open-close plate 3 pivot downwards, can reduce to a certain extent and appear the phenomenon that the oil smoke is blown away by the crosswind to promote user experience.

Further, the maximum downward pivot angle of the opening plate 3 located at the laterally outermost side may be set to not less than 90 °. For example, for the range hood 100 provided with the two opening plate folding groups, the maximum downward pivoting angle of the outer opening plate 32 may be set to be not less than 90 °. At the moment, the negative pressure area at the inlet of the smoke collecting cavity is equivalently moved downwards and simultaneously is expanded outwards towards the two sides of the smoke machine, so that the smoke collecting capacity of the smoke machine is enhanced, the amount of scattered oil smoke can be further reduced, and the smoking effect is greatly improved.

In an embodiment, the range hood 100 further includes a smoke probe for detecting a situation of smoke, the smoke probe can be disposed at different positions, such as the bottom of the air guide plate 1, according to actual needs, and the range hood 100 is configured to correspondingly control the displacement mechanism to operate according to the situation of smoke detected by the smoke probe. When the displacement mechanism includes the above-mentioned pivot mechanism, the range hood 100 is configured to control the operation of the pivot mechanism according to the oil smoke condition detected by the oil smoke probe. The oil smoke condition can include various factors such as the humidity, the temperature, the viscosity, the flow velocity and the type of the oil smoke, and the oil smoke condition can include the oil smoke condition in the smoke collection cavity or the oil smoke condition outside the inlet of the smoke collection cavity and the like in different areas.

In one embodiment, referring to fig. 1, when the plywood module is in a closed state, the bottom surfaces of the plurality of plywood 3 connected in series in the transverse direction are flush in the vertical direction. In other words, a plurality of open-close plates 3 splice in proper order along transversely at this moment and form into flat-plate with whole, consequently wash the degree of difficulty lower, and the user of being more convenient for is clean to promote user experience.

Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.

It should be noted that, in the foregoing embodiments, various features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described in further detail in the embodiments of the present invention.

In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.

Claims

1. A range hood, characterized in that the range hood (100) comprises:

the guide plate (1) is concave upwards to form a smoke collection cavity, and the bottom of the smoke collection cavity is provided with a smoke collection cavity inlet;

the opening plate module is positioned at the inlet of the smoke collection cavity and comprises a plurality of opening plates (3); and

displacement mechanism for the drive the open close plate module switches between open mode and closed state under the closed state, it is a plurality of open close plate (3) connect gradually with the closure along transversely gather smoke chamber entry, switch over to the in-process of open state, displacement mechanism drive is a plurality of open close plate (3) remove in order to open gather smoke chamber entry.

2. The range hood according to claim 1, wherein the displacement mechanism comprises a pivoting mechanism for driving a plurality of the opening plates (3) to pivot to open or close the smoke collection chamber inlet.

3. The range hood according to claim 2, wherein the pivot mechanism drives the plurality of opening plates (3) to fold in the transverse direction during the switching of the opening plate module to the open state, and drives the plurality of opening plates (3) to unfold in the transverse direction during the switching to the closed state.

4. The range hood according to claim 3, wherein the plurality of the opening plates (3) are divided into two opening plate folding groups located at two lateral sides of the inlet of the smoke collecting cavity, each opening plate folding group comprises an inner opening plate (31) and an outer opening plate (32), the front end and the rear end of the lateral outer end of the outer opening plate (32) are respectively and pivotally connected to the front side wall and the rear side wall of the air deflector (1), the front end and the rear end of the lateral inner end of the inner opening plate (31) are respectively and laterally connected with the front side wall and the rear side wall of the air deflector (1) in a sliding manner, the lateral inner end of the outer opening plate (32) is pivotally connected with the lateral outer end of the inner opening plate (31), and the pivoting mechanism is used for driving the lateral outer end of the outer opening plate (32) to pivot.

5. The range hood according to claim 4, wherein in the open state, the included angle between the plate surfaces of the inner opening plate (31) and the outer opening plate (32) which are folded with each other is not more than 30 degrees.

6. The range hood according to claim 4, wherein the pivot mechanism comprises a first pivot mechanism and a second pivot mechanism for driving the two opening plate folding groups to move respectively, and the first pivot mechanism and the second pivot mechanism operate independently.

7. The range hood according to claim 2, wherein the laterally inner end of the opening plate (3) located at the laterally outermost side is pivoted downward relative to the laterally outer end in the process of switching the opening plate module to the open state.

8. The range hood according to claim 7, wherein the maximum downward pivoting angle of the opening plate (3) located at the outermost lateral side is not less than 90 °.

9. The range hood according to claim 1, wherein the range hood (100) further comprises a smoke probe for detecting a smoke condition, and the range hood (100) is configured to control the displacement mechanism to operate according to the smoke condition detected by the smoke probe.

10. The range hood according to any one of claims 1 to 9, wherein in the closed state, bottom surfaces of the plurality of the opening plates (3) which are connected in sequence along the transverse direction are flush along the vertical direction.