CN214536364U

CN214536364U - Circulation purification range hood

Info

Publication number: CN214536364U
Application number: CN202022900436.XU
Authority: CN
Inventors: 李德来; 王灵恩; 郑军妹; 张旭东
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-10-29
Anticipated expiration: 2030-12-03

Abstract

A circulation purification range hood comprises: a housing (1) having a chamber (10) therein, the chamber having an outlet (11) and an inlet (12) communicating with an indoor environment at upper and lower portions thereof, respectively; the filtering piece (4) is connected with the shell (1) to purify the oil stain in the chamber (10); also includes: and the cross-flow fan (2) is arranged in the chamber (10), an air inlet (212) of the cross-flow fan (2) is adjacent to the inlet (12) and opposite to the inlet (12), and an air outlet (211) of the cross-flow fan (2) is adjacent to the outlet (11) and opposite to the outlet (11) so as to drive the airflow to flow from the inlet (12) to the outlet (11). Compared with the prior art, the oil smoke discharge capacity can be guaranteed while the noise can be reduced.

Description

Circulation purification range hood

Technical Field

The utility model belongs to the technical field of domestic appliance, concretely relates to circulation purifies range hood.

Background

The range hood as a necessary kitchen electrical appliance of China families has important functions of purifying kitchen air, reducing the harm of oil smoke to human bodies and the like. The existing range hood is large in size and complex in installation and fixation, along with the development of urbanization, oil smoke sucked by the range hood of a common high-rise building family is discharged outdoors through the collective flue, the required performance of the range hood is better due to the fact that the pressure in the flue is overcome, and meanwhile, the oil smoke in the discharge flue has the risk of backflow due to the collective discharge flue.

In order to overcome the resistance influence of the flue, people design a circulating purification range hood, which purifies the sucked oil smoke and directly discharges the purified oil smoke to the indoor without connecting a smoke discharge pipeline, for example, the structure disclosed in the invention patent application of the application number CN201810805219.7, namely, the internal circulation range hood (the application publication number CN108592129A), comprises: the filter comprises a shell, an air wheel component and a filter screen component, wherein a filter cavity is defined in the shell and is provided with an air inlet and an air outlet which are communicated with an indoor environment; the air wheel assembly is rotatably arranged in the filtering cavity to drive air to flow from the air inlet to the air outlet; the filter screen subassembly is located and is filtered the intracavity, and the air that gets into and filter the intracavity passes through the air outlet behind the filter assembly and arranges to indoor, realizes indoor air's circulation and purifies.

The wind wheel subassembly in this application adopts centrifugal fan like the general range hood among the prior art, and centrifugal fan has independent spiral case, has the collection smoke chamber between spiral case and the casing, inhales the interior oil smoke of casing and passes through collection smoke chamber earlier, by centrifugal fan discharge casing again, and centrifugal fan can guarantee the inside wind pressure of casing for range hood has great discharge capacity, and then realizes the circulation of room air.

The circulating range hood can be arranged in places such as restaurants and the like without being connected with a smoke exhaust pipeline, but the centrifugal fan has higher noise when working, and can influence the use feeling of customers to a certain extent; and during operation, oil smoke firstly enters the smoke collection cavity and then is output by the centrifugal fan, and certain resistance exists in the process, so that the discharge capacity of the oil smoke is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the current situation to prior art provides a can also guarantee the circulation purification range hood of oil smoke discharge capacity when the noise reduction.

The utility model aims to solve the second technical problem that a circulation that need not to set up in addition and lead the greasy dirt that the oiled plate also can be with in the fan wind channel to the oil cup purifies range hood is provided.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: a circulation purification range hood comprises:

the shell is internally provided with a chamber, and the upper part and the lower part of the chamber are respectively provided with an outlet and an inlet which are communicated with the indoor environment;

the filtering piece is connected with the shell to purify the oil stain in the cavity;

it is characterized by also comprising:

and the cross-flow fan is arranged in the cavity, an air inlet of the cross-flow fan is adjacent to the inlet and opposite to the inlet, and an air outlet of the cross-flow fan is adjacent to the outlet and opposite to the outlet so as to drive airflow to flow from the inlet to the outlet.

In order to improve the oil smoke absorption effect of the range hood, the outlet and the inlet are adjacent in the vertical direction and are basically positioned on the same vertical plane.

In order to reduce the volume of the range hood and ensure the oil smoke absorption effect of the range hood, the chamber is a ring cavity which is basically horizontally arranged, and at least two groups of inlets and corresponding outlets are arranged on the ring cavity at intervals along the circumferential direction; the cross-flow fans are at least two and are respectively and transversely arranged in the annular cavity corresponding to the inlets and the outlets of each group.

Furthermore, the left part and the right part of the chamber extend along the front-back direction, two groups of inlets and outlets are respectively arranged at the left part and the right part of the chamber, and each inlet and each outlet is a strip-shaped hole extending along the front-back direction.

Furthermore, the center of the bottom wall of the shell is inwards sunken to form a bottom cavity, the lower part of the chamber is positioned at the periphery of the bottom cavity, the inlets of the chambers are respectively arranged on the left side wall and the right side wall which enclose the bottom cavity, and the inlets are oppositely obliquely downwards arranged; the center of the top wall of the shell is inwards sunken to form a top concave cavity, the upper parts of the chambers are positioned on the periphery of the top concave cavity, outlets of the chambers are respectively arranged on the left side wall and the right side wall of the top concave cavity, and the outlets are oppositely and obliquely upwards arranged. Therefore, when the range hood works, a negative pressure area is formed in the cavity at the bottom, and airflow can better enter the cavity through the inlet and is discharged from the outlet under the suction force of the cross flow fan.

In order to further solve the second technical problem, preferably, the cross-flow fan further comprises an oil cup for receiving oil stains, wherein the oil cup is arranged below the air inlet of the cross-flow fan; the cross-flow fan comprises a casing, an air duct is formed in the casing, the air outlet and the air inlet are formed in the upper portion and the lower portion of the air duct respectively, at least part of the inner wall surface of the air duct is a flow guide surface capable of guiding oil dirt downwards into the oil cup, and the lower edge of the flow guide surface is adjacent to the air inlet. So, when the internal face in wind channel can be used for the wind-guiding, can also make the vapor in the oil smoke flow to the oil cup along the water conservancy diversion face after meeting the wind channel condensation in, and then need not to set up in addition the guide plate can lead down the greasy dirt in the fan wind channel.

In order to better realize condensation of the oil smoke entering the air duct, the cooling device also comprises a refrigeration piece used for reducing the temperature of the shell, and the cold end of the refrigeration piece is attached to the shell. The refrigeration piece can reduce the fan temperature and then improve the fan life-span while, can also make the vapor in the oil smoke condense into the water droplet fast and flow down along the water conservancy diversion face, guarantees that exhaust air is dry.

Further, the air duct is an arc-shaped air duct, and the flow guide surface is an arc-shaped surface located on the outer side of the air duct.

Further, the cross-flow fan also comprises an impeller which can be rotatably arranged in the casing and a motor which drives the impeller to rotate.

In each of the above embodiments, the filter members are at least two and are respectively disposed at the inlet and the outlet. Of course, the filter element may be located elsewhere in the chamber corresponding to the flow path of the airflow.

The filter element is preferably a filter screen and is detachably mounted on the inlet and the outlet.

In order to facilitate the disassembly and assembly of the filter screen, the edge of the filter screen is provided with a clamping jaw, and the shell is provided with a clamping hole for the clamping jaw to be clamped in.

In order to further improve the filtering effect and ensure the fresh air discharged, the air purifier also comprises a purifying piece for filtering the air flow flowing out of the outlet, and the purifying piece is covered on the shell. The purification piece can be selected from the existing purification module which can decompose harmful substances in the oil smoke.

In each scheme, in order to enable the range hood to have the lighting function, the range hood further comprises a lamp belt, and the lamp belt is arranged at the bottom of the shell along the circumferential direction.

Compared with the prior art, the utility model has the advantages of: the cross-flow fan is arranged in the cavity, the air inlet of the cross-flow fan is opposite to the cavity inlet, and the air outlet of the cross-flow fan is opposite to the cavity outlet, so that the oil smoke sucked from the inlet can be directly discharged through the cross-flow fan without arranging a smoke collection cavity, the structure is simplified, the size of the range hood is reduced, and the oil smoke discharge capacity can be ensured; and the cross flow fan can reduce noise and improve the experience of customers. The utility model discloses simple structure, be convenient for implement.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of another view angle according to an embodiment of the present invention;

fig. 3 is an exploded perspective view of an embodiment of the present invention;

FIG. 4 is a schematic structural view of a filter screen in an embodiment of the present invention;

fig. 5 is a cross-sectional view of an embodiment of the invention;

fig. 6 is another cross-sectional view of an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1-6, for the utility model discloses a range hood's a preferred embodiment, this range hood includes casing 1, cross-flow fan 2, oil cup 3, filters piece 4, purifies piece 5, lamp area 6.

The housing 1 is flat, and has a horizontally distributed annular chamber 10 therein, the left and right portions of the chamber 10 extend along the front-rear direction, the upper and lower portions of the chamber 10 have an outlet 11 and an inlet 12, the inlets 12 and the corresponding outlets 11 have two sets and are located at the left and right portions of the chamber 10, respectively, and each inlet 12 and each outlet 11 are strip-shaped holes extending along the front-rear direction. In this embodiment, the housing 1 has a top wall and a bottom wall, the center of the bottom wall of the housing 1 is recessed inward to form a bottom cavity 13, the lower part of the chamber 10 is located at the periphery of the bottom cavity 13 and is separated from the bottom cavity 13, the inlets 12 of the chambers 10 are respectively arranged on the left and right side walls enclosing the bottom cavity 13, and the inlets 12 are arranged obliquely downward; the center of the top wall of the shell 1 is inwards sunken to form a top cavity 14, the upper parts of the chambers 10 are positioned at the periphery of the top cavity 14 and are separated from the top cavity 14, the outlets 11 of the chambers 10 are respectively arranged on the left side wall and the right side wall which enclose the top cavity 14, and the outlets 11 are oppositely and obliquely upwards arranged. In this embodiment, the inlet 12 is substantially in the same vertical plane as the outlet 11. The shell 1 is formed by splicing an upper part and a lower part.

The filter elements 4 are four filter meshes, two of which are respectively arranged on the corresponding inlets 12, and the other two of which are respectively arranged on the corresponding outlets 11. The mounting structure of the filter screen on the inlet 12 is as follows: the edge of the filter screen is arranged corresponding to the edge of the inlet 12, the upper edge of the filter screen is provided with a clamping jaw 41, and the shell 1 is provided with a clamping hole 15 for the clamping jaw 41 to clamp; the lower edge of the filter screen is provided with an insertion part 42, and the housing 1 is provided with an insertion hole 16 into which the insertion part 42 is inserted. The filter screen can be detachably mounted by inserting the insertion portion 42 into the insertion hole 16 and clamping the clamping claws 41 into the clamping holes 15. The mounting structure of the filter screen on the outlet 11 can refer to the mounting structure of the filter screen at the inlet 12, or the filter screen can be directly embedded on the outlet 11, or other connecting structures can be adopted.

The above-mentioned purifying member 5 is provided over the housing 1 to filter the air flow flowing out of the outlet 11. The lamp strip 6 is circumferentially arranged at the bottom of the shell 1.

Two sets of cross-flow fans 2 and oil cups 3 are provided and are disposed on the left and right portions of the chamber 10, respectively. In this embodiment, a cross-flow fan and an oil cup disposed at the left portion of the chamber 10 are taken as an example for explanation, and the details are as follows: the oil cup 3 is an elongated strip inserted in the lower part of the casing 1 and located below the inlet 12, and the cross flow fan 2 is placed transversely in the chamber 10 and located above the oil cup 3, and the cross flow fan 2 is used for driving the airflow from the inlet 12 to the outlet 11. The cross-flow fan 2 comprises a casing 21, an impeller 22 rotatably arranged in the casing 21 and a motor 23 for driving the impeller 22 to rotate, wherein the central axes of the casing 21 and the impeller 22 extend along the front-back direction of the chamber 10; an air duct 210 is formed inside the housing 21, and an air outlet 211 and an air inlet 212 extending in the front-rear direction of the chamber 10 are respectively formed at the upper and lower portions of the air duct 210, the air outlet 211 being opposite to the outlet 11, and the air inlet 212 being opposite to the inlet 12; the inner wall surface of the air duct 210 is partially a guide surface 213 capable of guiding the oil stain downward into the oil cup 3, the guide surface 213 is an arc surface located outside the air duct 210 (of course, the whole inner wall surface of the air duct may also be designed as a guide surface), the lower edge 213a of the guide surface 213 is adjacent to the air inlet 212, the air inlet 212 is located above the oil cup 3, and the upper edge 213b of the guide surface 213 is adjacent to the air outlet 211. And meanwhile, the outer wall surface of the casing 1 is provided with a refrigerating piece 7 for reducing the temperature of the casing, and the cold end of the refrigerating piece 7 is attached to the casing 1 and arranged on the upper part of the casing 1. The refrigerating piece 7 can be selected from existing refrigerating elements such as semiconductor refrigeration and the like, so that a large amount of oil smoke and water vapor pass through the air duct 210 in the cross-flow fan 2 when the cross-flow fan works, the cold energy of the refrigerating piece 7 is transmitted through the shell 1, the water vapor in the oil smoke is quickly condensed into water drops when passing through the inner wall surface of the low-temperature air duct 210 and flows into the oil cup along the guide surface 213, the burden of the filter screen on the outlet 11 and the decomposition of the oil smoke can be greatly reduced, and the exhausted air is ensured to be dry.

When the range hood is used, the range hood can be directly arranged above a dining table, the lamp strip 6 in the range hood plays a role in illumination, and oil smoke can be directly discharged indoors after being filtered by the filter screen at the inlet 12, the condensation of the air duct 210 in the cross-flow fan, the filter screen at the outlet 11 and the multiple filtering of the purifying piece 5, so that indoor air is purified. The direction of the flow is shown in figure 5.

Claims

1. A circulation purification range hood comprises:

a housing (1) having a chamber (10) therein, the chamber having an outlet (11) and an inlet (12) communicating with an indoor environment at upper and lower portions thereof, respectively;

the filtering piece (4) is connected with the shell (1) to purify the oil stain in the chamber (10);

it is characterized by also comprising:

and the cross-flow fan (2) is arranged in the chamber (10), an air inlet (212) of the cross-flow fan (2) is adjacent to the inlet (12) and opposite to the inlet (12), and an air outlet (211) of the cross-flow fan (2) is adjacent to the outlet (11) and opposite to the outlet (11) so as to drive the airflow to flow from the inlet (12) to the outlet (11).

2. The circulation purification range hood according to claim 1, characterized in that: the outlet (11) and the inlet (12) are adjacent in the up-down direction and are on the same vertical plane.

3. The circulation purification range hood according to claim 1, characterized in that: the chamber (10) is an annular cavity which is basically horizontally arranged, and at least two groups of inlets (12) and corresponding outlets (11) are distributed on the annular cavity at intervals along the circumferential direction; the cross-flow fan (2) is provided with at least two cross-flow fans which are respectively and transversely arranged in the annular cavity corresponding to the inlets (12) and the outlets (11) of each group.

4. The circulation purification range hood according to claim 3, characterized in that: the left and right parts of the chamber (10) extend along the front-back direction, two groups of inlets (12) and outlets (11) thereof are respectively positioned at the left and right parts of the chamber (10), and each inlet (12) and each outlet (11) are strip-shaped holes extending along the front-back direction.

5. The circulation purification range hood according to claim 4, characterized in that: the center of the bottom wall of the shell (1) is inwards sunken to form a bottom cavity (13), the lower part of the chamber (10) is positioned at the periphery of the bottom cavity (13), the inlets (12) of the chambers (10) are respectively arranged on the left side wall and the right side wall which enclose the bottom cavity (13), and the inlets (12) are oppositely and obliquely downwards arranged; the center of the top wall of the shell (1) is inwards sunken to form a top cavity (14), the upper parts of the chambers (10) are positioned on the periphery of the top cavity (14), the outlets (11) of the chambers (10) are respectively arranged on the left side wall and the right side wall of the top cavity (14), and the outlets (11) are oppositely and obliquely upwards arranged.

6. The circulation purification range hood according to any one of claims 1 to 5, wherein: the cross-flow fan is characterized by also comprising an oil cup (3) used for bearing oil stains, wherein the oil cup (3) is arranged below an air inlet (212) of the cross-flow fan (2); the cross-flow fan (2) comprises a casing (21) with an air duct (210) formed inside, the upper portion and the lower portion of the air duct (210) are respectively provided with the air outlet (211) and the air inlet (212), at least part of the inner wall surface of the air duct (210) is a flow guide surface (213) capable of guiding oil dirt downwards into the oil cup (3), and the lower edge (213a) of the flow guide surface (213) is adjacent to the air inlet (212).

7. The circulation purification range hood according to claim 6, characterized in that: the refrigerator further comprises a refrigerating piece (7) used for reducing the temperature of the casing (21), and the cold end of the refrigerating piece (7) is attached to the casing (21).

8. The circulation purification range hood according to claim 6, characterized in that: the air duct (210) is an arc-shaped air duct, and the flow guide surface (213) is an arc-shaped surface located on the outer side of the air duct (210).

9. The circulation purification range hood according to claim 6, characterized in that: the cross-flow fan (2) also comprises an impeller (22) which can be rotatably arranged in the casing (21) and a motor (23) which drives the impeller (22) to rotate.

10. The circulation purification range hood according to any one of claims 1 to 5, wherein: the filter elements (4) are at least two and are respectively arranged at the inlet (12) and the outlet (11).

11. The circulation purification range hood according to claim 10, wherein: the filter element (4) is a filter screen and is detachably arranged on the inlet (12) and the outlet (11).

12. The circulation purification range hood according to claim 11, wherein: be equipped with jack catch (41) on the edge of filter screen, be equipped with card hole (15) that supply jack catch (41) to block in on casing (1).

13. The circulation purification range hood according to any one of claims 1 to 5, wherein: the air purifier also comprises a purifying piece (5) for filtering the air flow flowing out from the outlet (11), and the purifying piece (5) is covered on the shell (1).

14. The circulation purification range hood according to any one of claims 1 to 5, wherein: the LED lamp is characterized by further comprising a lamp strip (6), wherein the lamp strip (6) is arranged at the bottom of the shell (1) along the circumferential direction.