CN211176970U

CN211176970U - Smoke exhaust ventilator

Info

Publication number: CN211176970U
Application number: CN201922057428.0U
Authority: CN
Inventors: 吴子阳
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-08-04
Anticipated expiration: 2029-11-25

Abstract

The utility model discloses a range hood, include: the smoke inlet device comprises a case component, a first smoke inlet and a second smoke inlet, wherein the case component is provided with a front panel, a first smoke inlet is formed in the front panel, and a smoke channel for smoke to flow is formed in the case component; the filter screen, the filter screen has the face of keeping out the wind, the filter screen with the front panel is the contained angle setting, the filter screen is installed with rotating on the flue gas runner, so that by the air current that first advances the mouth of cigarette and get into acts on keep out the wind on the face, and drive the filter screen rotates. The utility model adopts the filter screen which can rotate relatively, and can drive the filter screen to rotate in the flowing process of the flue gas, and the filter screen can throw away grease attached to the filter screen in a rotation mode while filtering the flue gas; after the grease is separated from the filter screen, the grease on the surface of the filter screen is reduced, so that the problem that the filter performance of the filter screen is reduced due to the fact that the grease is attached to the filter screen is solved, and the filter screen is favorable for keeping good filter performance.

Description

Smoke exhaust ventilator

Technical Field

The utility model relates to a kitchen appliance field, in particular to range hood.

Background

The filter screen on the range hood plays a role in filtering grease in the smoke. In the prior technical scheme, a common structure of the filter screen is that a plurality of through holes are arranged on a metal net, and oil smoke is intercepted and condensed through the through holes; the other type is that double-layer or multilayer nets are mutually nested, and staggered air inlets have larger surface areas to perform multiple collision and interception on oil smoke.

Because grease adheres to the surface of the filter screen in the long-term use process of the filter screen, the passing performance of through holes on the filter screen is reduced, and the filtering effect is further influenced; meanwhile, the through holes on the filter screen are blocked by grease, so that the wind resistance of the filter screen is increased, and the smoking efficiency of the range hood is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a range hood, aim at improving the unsatisfactory problem of filter screen filter effect among the current range hood.

In order to achieve the above object, the utility model provides a range hood, include:

the smoke inlet device comprises a case component, a first smoke inlet and a second smoke inlet, wherein the case component is provided with a front panel, a first smoke inlet is formed in the front panel, and a smoke channel for smoke to flow is formed in the case component;

the filter screen, the filter screen has the face of keeping out the wind, the filter screen with the front panel is the contained angle setting, the filter screen is installed with rotating on the flue gas runner, so that by the air current that first advances the mouth of cigarette and get into acts on keep out the wind on the face, and drive the filter screen rotates.

When the range hood operates, smoke enters the smoke flow channel through the first smoke inlet, and when airflow contacts with the wind shielding surface of the filter screen, the filter screen rotates relatively under the pushing of the airflow, so that grease in the smoke is filtered through the filter screen; because the filter screen can rotate relatively, is attached to grease on the filter screen is in centrifugal force effect down to the filter screen outside is thrown away, and then makes grease follow break away from on the filter screen, makes the filter screen can keep better filtration state relatively.

Optionally, the front panel and the horizontal plane form an included angle;

the front panel top is equipped with the second panel, the second panel with the front panel is the contained angle setting, be equipped with the second on the second panel and advance the mouth.

When part of the smoke continuously flows upwards along the front panel, the smoke can enter the interior of the case assembly through the second smoke inlet so as to prevent smoke from escaping. Because the second panel with the front panel is the contained angle setting, makes the second panel with the front panel below forms one and gathers together the cigarette space, makes the flue gas can advance the mouth outside at first smoke inlet and second and concentrate, makes range hood when operation, the smoking efficiency of fan improves relatively.

Optionally, a smoke guide plate is arranged on the front panel, and the filter screen is rotatably arranged on the smoke guide plate.

The smoke guide plate can be used for guiding smoke, and meanwhile, when the smoke contacts the smoke guide plate, the smoke guide plate can cool the smoke; when the installation during the filter screen, can make the filter screen is closer first advance the mouth of cigarette to make the flue gas via advance the mouth of cigarette and get into during the flue gas runner, can be more abundant with the filter screen contacts, with the filtration efficiency of grease in the improvement flue gas.

Optionally, an included angle between the filter screen and the front panel is not less than 60 ° and not more than 140 °.

Through adopting above-mentioned angle setting, can make the filter screen has higher stability, simultaneously, the weight of filter screen can be concentrated on lead on the cigarette board, make the face of keeping out the wind of filter screen is bigger with the area of contact of flue gas, and its rotation performance is better.

Optionally, the smoke guide plate is arranged between the first smoke inlet and the second smoke inlet.

Under the effect of smoke deflector, two upper and lower smoke inlets are formed by separating to case subassembly front end, and wherein most flue gas passes through first smoke inlet gets into in the flue gas runner, the remaining flue gas passes through the second smoke inlet gets into in the flue gas runner to make most flue gas can pass through the filter screen filters, can prevent the loss cigarette simultaneously.

Optionally, the smoke guide plate is detachably mounted on the front panel or the chassis component.

When needing to wash the filter screen, can with it follows to lead the cigarette board take out on the quick-witted case subassembly, lead the cigarette board with the filter screen shifts out simultaneously, can be convenient right the filter screen washs.

Optionally, be equipped with the reference column on the smoke deflector, the filter screen rotationally installs on the reference column.

The reference column with the rotation center of filter screen is connected, the filter screen with the reference column rotates as the center, and then simplifies the bearing structure of filter screen, simultaneously, can conveniently dismantle and wash it.

Optionally, be equipped with the installation department on the filter screen, installation department detachably with the reference column is connected.

After the smoke guide plate is detached, the filter screen can be directly detached from the smoke guide plate, and the filter screen and the smoke guide plate are cleaned or replaced independently.

Optionally, the screen surface part protrudes towards the smoke inlet to form a convex part, and a concave part is formed between adjacent convex parts, so that the screen surface forms the wind shielding surface;

and the filter screen is provided with filter holes.

The filter screen surface forms unevenness's state, makes the filter screen orientation first advance mouth one side surface has the face of keeping out the wind, passes through as the flue gas first advance the mouth gets into during the flue gas runner, the flue gas can direct action in the face of keeping out the wind on filter screen surface, simultaneously, can concave part and convex part surface set up the filtration pore, and then make the filter screen can rotate under the air current effect, and, can increase the quantity of the filtration pore of filter screen surface, in order to improve the filtration efficiency of filter screen.

Optionally, the height of the convex part is gradually increased from the rotation center of the filter screen to the edge direction of the filter screen.

By the rotation center of filter screen is to its edge direction, the area crescent of the face that keeps out the wind of filter screen, and then can make the rotation performance of filter screen is better to, can increase the quantity of crossing the filtration pore, in order to improve the filtration efficiency of filter screen.

The technical scheme of the utility model is that the filter screen which can rotate relatively is adopted, the filter screen can be driven to rotate in the flowing process of the flue gas, and the filter screen can throw away the grease attached to the filter screen in a rotation mode while filtering the flue gas, so that the grease is concentrated on the inner wall of the case assembly, and the collection of the grease is convenient; after the grease is separated from the filter screen, the grease on the surface of the filter screen is reduced, so that the problem that the filter performance of the filter screen is reduced due to the fact that the grease is attached to the filter screen is solved, and the filter screen is favorable for keeping good filter performance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic view of an external structure of a range hood according to an embodiment of the present invention;

fig. 2 is a schematic view of a mounting position of a filter screen according to an embodiment of the present invention;

fig. 3 is a schematic view of a filter screen according to an embodiment of the present invention;

fig. 4 is a schematic view illustrating a mounting manner of a side filter screen of a chassis assembly according to an embodiment of the present invention;

fig. 5 is a schematic view illustrating a matching manner between a filter screen and a positioning column according to an embodiment of the present invention;

fig. 6 is a schematic view of a positioning post according to an embodiment of the present invention;

fig. 7 is a schematic view illustrating positions of the filter and the front panel in the first state according to an embodiment of the present invention;

fig. 8 is a schematic view illustrating positions of the filter and the front panel in the second state according to an embodiment of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Fume exhaust fan	11	Case assembly
12	Back plate	13	Upper cover plate
				20	Front panel	21	The first smoke inlet
22	The second smoke inlet	23	Smoke guide plate
				24	Second panel	30	Filter screen
31	Mounting part	32	Convex part
				33	Concave part	34	Filter hole
35	Mounting hole	36	Wind screen
				40	Positioning column	41	Fixed shaft
42	Upper cover	43	Lower cover
				44	Bearing assembly

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic diagram of an external structure of a range hood according to an embodiment of the present invention, fig. 2 is a schematic diagram of a mounting position of a filter screen according to an embodiment of the present invention, which provides a range hood 10, including: the cabinet assembly 11 is provided with a front panel 20, the front panel 20 is provided with a first smoke inlet 21, and a smoke channel for smoke flowing is arranged in the cabinet assembly 11; filter screen 30, filter screen 30 has the face 36 that keeps out the wind, filter screen 30 with front panel 20 is the contained angle setting, filter screen 30 is installed with rotating on the flue gas runner, so that by the air current that first advances mouth 21 entering acts on the face 36 that keeps out the wind, and drives filter screen 30 rotates. A cavity is formed inside the case component 11, and after entering the cavity through the first smoke inlet 21, smoke moves along the smoke flow channel under the action of negative pressure formed by the range hood 10.

When the range hood 10 operates, the flue gas via under the negative pressure effect first inlet 21 gets into the flue gas runner, the flue gas contact during the face 36 that keeps out the wind of filter screen 30, the air current acts on keep out on the face 36 that keeps out the wind, promote filter screen 30 relative rotation, under the filter screen 30 relative rotation state, the gas in the flue gas through filter screen 30 and continue to range hood 10 external motion, grease in the flue gas by filter screen 30 blocks, adheres to on the filter screen 30.

When range hood 10 moves, the air current is continuously inhaled flue gas runner, and the air current continuously acts on filter screen 30 keep the rotation state on wind-shielding surface 36 filter screen 30 rotates, and the grease attached to filter screen 30 throws away outside filter screen 30 under the centrifugal force effect, to concentrate on the inner wall of case subassembly 11, conveniently concentrate the collection to the grease.

When grease is thrown away from the surface of the filter screen 30, the grease attached to the filter screen 30 is greatly reduced, so that the filter screen 30 can keep good gas permeability, the problem of large wind resistance of the existing filter screen 30 can be avoided, and the smoke suction efficiency of the range hood 10 can be kept.

First smoke inlet 21 sets up on the front panel 20, because filter screen 30 with front panel 20 is the contained angle setting, as the flue gas via first smoke inlet 21 gets into during the flue gas runner, can make the flue gas act on face 36 keeps out the wind, the increase keep out the wind the area of contact of face 36 and air current, it is right to strengthen the air current filter screen 30's effect, help the increase filter screen 30's rotational speed makes it have better filtering quality.

Referring to fig. 3, fig. 3 is a schematic diagram of a filter screen structure according to an embodiment of the present invention, the filter screen 30 is provided with filter holes 34, the filter holes 34 may be shaped as required, and when machining, the surface of the filter screen 30 has an inward concave or outward convex portion, and the wind shielding surface 36 is formed on the surface of the filter screen 30 by an inward concave or outward convex surface. It is also possible to provide a blade structure on the surface of the screen 30, and the surface of the blade structure is used as the wind shielding surface 36.

The range hood 10 further includes other functional components, such as a fan, etc., which can refer to the prior art and are not described in detail. The upper cover 42, the back plate 12 and the front panel 20 may enclose a contour of the chassis component 11, the contour is sealed to form a cavity, the cavity is provided with the flue gas flow channel, and when the range hood 10 operates, the flue gas flow channel corresponding to the inside is relatively determined on the premise that the installation positions of the flue gas inlet and the fan are determined.

Referring to fig. 1 and 4, fig. 4 is a schematic view of a side filter screen installation manner of a chassis assembly according to an embodiment of the present invention, when a side suction structure is adopted, since the flue gas flow channel is located above the first smoke inlet 21, in the front view of the range hood 10, the edge of the enough filter screen 30 is partially overlapped with the first smoke inlet 21, when the flue gas enters the flue gas flow channel, a continuously rising state is formed, so that the flue gas entering the first smoke inlet 21 first acts on the wind shielding surface 36 at the edge of the filter screen 30, so that the filter screen 30 rotates rapidly.

During installation, a plurality of groups of filter screens 30 can be arranged along the length direction of the first smoke inlet 21, so that more smoke channels above the first smoke inlet 21 can be covered by the filter screens 30, and the filtering efficiency is improved.

When the filter screen 30 is installed, a positioning column 40 may be disposed inside the housing assembly 11, such that the positioning column 40 is connected to a rotation center of the filter screen 30; it is also possible to adopt the circular filter screen 30, and a support structure, such as a hollow ring structure, is disposed outside the filter screen 30, and the filter screen 30 is installed in the hollow ring structure, so that the filter screen 30 can rotate relatively in the hollow ring structure.

Referring to fig. 3, in this embodiment, optionally, a surface of the filter screen 30 protrudes toward the smoke inlet to form a protrusion 32, and a recess 33 is formed between adjacent protrusions 32, so that the surface of the filter screen 30 forms the wind shielding surface 36; the filter screen 30 is provided with filter holes 34. The filtering holes 34 may be uniformly distributed on the filter screen 30, or the shape and position of the filtering holes 34 may be determined according to the distribution of the convex portions 32 and the concave portions 33 on the filter screen 30.

The convex portion 32 and the concave portion 33 form a curved surface on the surface of the screen 30, and when the air flow contacts the screen 30, the surface of the screen 30 facing the air flow serves as the wind shielding surface 36, and the air flow pushes the wind shielding surface 36 to move, so that the screen 30 rotates.

The position of the protrusion 32 may be determined according to the shape and size of the filter mesh 30. Since the screen 30 has a rotating structure, when an airflow acts on the wind shielding surface 36, the farther the wind shielding surface 36 is from the rotation center of the screen 30, the stronger the force of the airflow on the screen 30, and therefore, the protrusion 32 can be disposed near the edge of the screen 30; the height of the convex portion 32 may be gradually increased from the rotation center of the screen 30 to the edge of the screen 30, and the wind shielding surface 36 formed by the convex portion 32 and the concave portion 33 may be gradually increased.

The surface of the filter screen 30 may be formed into a wave-like surface, and the distance between the crest and the trough of the wave gradually increases from the center of rotation of the filter screen 30 to the edge thereof, so as to facilitate the processing of the filter screen 30.

Referring to fig. 2, in an embodiment of the present invention, the front panel 20 is disposed at an angle with the horizontal plane; front panel 20 top is equipped with second panel 24, second panel 24 with front panel 20 is the contained angle setting, it advances mouth 22 to be equipped with the second on the second panel 24, machine case subassembly 11 forms the side-draught structure, on front panel 20 first mouth 21 is advanced as main mouth, most flue gas by first mouth 21 of advancing gets into the flue gas runner under the effect of filter screen 30, filter the flue gas.

Part of the smoke continues to rise along the surface of the front panel 20, and because the second panel 24 and the front panel 20 are arranged at an included angle, the second smoke inlet 22 on the second panel 24 enters the inside of the chassis assembly 11 through the second smoke inlet 22.

During installation, the screen 30 may also be positioned above the second panel 24 so that it is rotatable.

Because the flue gas mainly gets into by first mouth 21 of admitting flue gas the flue gas runner, the contained angle of front panel 20 and horizontal plane is greater than the contained angle of second panel 24 and horizontal plane to make front panel 20 with second panel 24 below forms and holds together the cigarette space, the flue gas can be blockked in second panel 24 below, and then reduces the loss cigarette.

In order to facilitate the installation of the filter screen 30, in this embodiment, optionally, the front panel 20 has a smoke guide plate 23, the filter screen 30 is rotatably installed on the smoke guide plate 23, and the smoke guide plate 23 and the front panel 20 are located on the same plane, so that smoke can flow along the surface of the smoke guide plate 23 to the second smoke inlet 22.

When the filter screen 30 is installed, a positioning column 40 may be disposed on the smoke guide plate 23, and the positioning column 40 is rotatably connected to the rotation center of the filter screen 30; the hollow ring structure may be mounted on the smoke guide plate 23 so that the filter net 30 can rotate relative to the smoke guide plate 23.

Optionally, in this embodiment, the smoke guide plate 23 is disposed between the first smoke inlet 21 and the second smoke inlet 22, during a rising process of smoke, most of the smoke enters the inside of the chassis assembly 11 through the first smoke inlet 21, a part of the smoke continues to move upward along the smoke guide plate 23, and under the action of the smoke guide plate 23, the smoke flows toward the second smoke inlet 22, so that the smoke can enter the second smoke inlet 22, and smoke escape is prevented.

Because the filter screen 30 may be disposed on the smoke guide plate 23, in a front view of the range hood 10, the filter screen 30 may partially overlap with the first smoke inlet 21 and partially overlap with the second smoke inlet 22, so that the filter screen 30 simultaneously acts on the smoke entering the cabinet assembly 11 through the first smoke inlet 21 and the second smoke inlet 22.

In order to facilitate the cleaning of the smoke guide plate 23, in this embodiment, optionally, the smoke guide plate 23 is detachably mounted on the front panel 20 or the chassis assembly 11, and when the inside of the chassis assembly 11 needs to be cleaned, the smoke guide plate 23 may be opened, so as to facilitate the cleaning of the smoke guide plate 23 and the filter screen 30.

When the filter screen 30 is installed on the smoke guide plate 23, and the smoke guide plate 23 is moved out of the front panel 20 or the chassis component 11, the filter screen 30 is synchronously detached, so that the filter screen 30 can be conveniently cleaned.

Referring to fig. 5, fig. 5 is a schematic view illustrating a matching manner of the filter screen and the positioning column according to an embodiment of the present invention, in this embodiment, optionally, a positioning column 40 is disposed on the smoke guide plate 23, the filter screen 30 is rotatably mounted on the positioning column 40, a rotation center of the filter screen 30 is connected to the positioning column 40, and the positioning column 40 may be welded on the smoke guide plate 23.

Referring to fig. 6, fig. 6 is a schematic view of a positioning column according to an embodiment of the present invention, when installing, a fixing shaft 41 may be disposed on the smoke guide plate 23, the positioning column 40 is disposed on the fixing shaft 41, an upper cover 42, a lower cover 43 and a bearing 44 are disposed on the positioning column 40, the lower cover 43 is fixed on the positioning column 40, the upper cover 42 is connected to the lower cover 43 through the bearing 44, and the upper cover 42 is connected to a rotation center of the filter screen 30.

Optionally, be equipped with installation department 31 on filter screen 30, installation department 31 detachably with reference column 40 is connected, and after will smoke deflector 23 is dismantled, can with filter screen 30 follows smoke deflector 23 is last to be dismantled to the convenience is changed alone or is washd.

When the mounting portion 31 is mounted, a mounting hole 35 may be provided, the mounting portion 31 may be connected to the upper cover 42 by a bolt penetrating the mounting hole 35, and the mounting portion 31 may be directly detached from the upper cover 42 when the mounting portion is detached.

Referring to fig. 7 and 8, fig. 7 is a schematic diagram illustrating positions of a filter screen and a front panel in a first state, and fig. 8 is a schematic diagram illustrating positions of a filter screen and a front panel in a second state according to an embodiment of the present invention, in an embodiment of the present invention, an included angle between the filter screen 30 and the front panel 20 is not less than 60 ° and not more than 140 °.

Through adopting above-mentioned angle setting, it can be convenient filter screen 30's installation acts on at the air current when filter screen 30 keeps out wind on 36, the air current is right keep out wind 36's relative effort great, filter screen 30's rotation performance is better.

Because the wind-shielding surface 36 receives the upward acting force of the airflow, the arrangement can ensure that the stress position of the filter screen 30 is concentrated on the smoke guide plate 23, so as to avoid the deformation of the positioning column 40 and further avoid the problem of blocked rotation caused by displacement.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A range hood, comprising:

2. The range hood of claim 1 wherein the front panel is disposed at an angle to the horizontal;

3. The range hood of claim 2 wherein the front panel has a smoke guide plate thereon, and the filter screen is rotatably mounted on the smoke guide plate.

4. A range hood according to any one of claims 1-3 wherein the angle between the screen and the front panel is not less than 60 ° and not more than 140 °.

5. The range hood of claim 3 wherein the smoke guide plate is disposed between the first smoke inlet and the second smoke inlet.

6. The range hood of claim 3 wherein the smoke deflector is removably mounted to the front panel or the housing assembly.

7. The range hood of claim 3 wherein the smoke guide plate has a positioning post, and the filter screen is rotatably mounted on the positioning post.

8. The range hood of claim 7 wherein the filter screen has a mounting portion, the mounting portion being removably coupled to the positioning post.

9. The range hood of claim 1 wherein said screen surface portion projects in a direction toward said smoke inlet to form a protrusion, and a recess is formed between adjacent protrusions to form said screen surface into said wind-shielding surface;

and the filter screen is provided with filter holes.

10. The range hood of claim 9 wherein the height of the protrusions increases from the center of rotation of the screen towards the edges of the screen.