CN208886860U - A kind of range hood - Google Patents

Abstract

The utility model relates to a kind of range hoods, including blower hood, exhaust fume collecting hood below blower hood, blower hood has the inner cavity passed through for oil smoke, the outlet end of blower hood is connected with outlet housing, it further include the fluid channel having independently of blower hood inner cavity setting, the input end of fluid channel is connected with outlet housing, the outlet end of fluid channel is connected with the smoke-collecting area that blower hood inner cavity and/or exhaust fume collecting hood surround, being additionally provided in the fluid channel can be connected according to wind pressure difference at outlet housing, it closes fluid channel and adjusts the switch block of fluid channel wind body flow.The partial fume that the range hood can not only be discharged needs when common flue back pressure is higher shunts, and reduces smoke evacuation pressure, while being also able to achieve the drainage and air curtain effect of oil smoke.

Description

A kind of range hood

Technical field

The utility model relates to kitchen appliance technical fields, in particular to a kind of to can be realized oil smoke drainage and provide the suction of air curtain Kitchen ventilator.

Background technique

European type cooker hood integral installation height determines that the kitchen tools of range hood distance generation oil smoke are distant, negative pressure damage Lose bigger, the oil smoke of ascension is easy to escape from the two sides of exhaust fume collecting hood above pot, causes smoke absorption effect poor.And it is traditional Range hood can not suck back once oil smoke disengagement zone.In order to improve the smoke absorption effect of range hood, people are to oil suction pressure The structure of machine is improved, it is common practice that and the blower fan system of range hood is improved, for example increases the power of blower, For example improve the structure etc. of impeller.Although this improvement can effectively promote the smoke absorption effect of range hood, it is needed The structure of entire blower fan system is improved, it is not only complex, but also negative pressure differentiation when range hood work cannot be improved Cloth, negative pressure loss is relatively large, and the oil smoke above hearth is still easy to escape from exhaust fume collecting hood two sides.In addition, being carried on the back in common flue It presses in higher situation, oil smoke is discharged that difficulty is big, and the case where fumes escaping can be more serious.

Authorization Notice No. is the Chinese utility model patent " one of CN206073205U (application No. is 201621088225.8) Kind of range hood ", disclosed in range hood at left and right sides of exhaust fume collecting hood installation activity smoke barrier, smoke barrier can be to Under to extend out to exhaust fume collecting hood outer or be retracted in exhaust fume collecting hood upwards, and equipped with air flow chamber inside activity but template, air flow chamber Jet port or the oblique nozzle being arranged downward are installed at lower air outlet.The air-flow that nozzle projects can be in the two sides of exhaust fume collecting hood The effect of air curtain is formed, to more effectively oil smoke be prevented to escape from exhaust fume collecting hood two sides.Although the structure can be prevented effectively Fumes escaping, but smoke barrier needs to move up and down in the course of work, its structure that moves up and down of Yao Shixian smoke barrier is born relatively Duty.In addition upper air inlet is located at lower position in exhaust fume collecting hood in smoke barrier, and the greasy dirt in oil smoke is not also by adequately filtering Deposition can form greasy deposits after then entering the air flow chamber of smoke barrier, when one side smoke barrier needs to clean in air flow chamber Disassembly is difficult and hardly possible cleaning, another aspect will affect the use of air flow chamber, or even blocking air flow chamber in the long-term use.This Outside, when the flue gas not filtered sufficiently goes out to spray from the lower air outlet of smoke barrier, greasy dirt content is high, a degree of can cause to kitchen The pollution of room environment.

Utility model content

First technical problem to be solved in the utility model is that one kind is provided for the above-mentioned prior art in public cigarette The range hood that the partial fume that needs are discharged when road back pressure is higher is drained and relapsed.

Second technical problem to be solved in the utility model, which is to provide, a kind of is solving first technical problem It is able to achieve air curtain also simultaneously to avoid the range hood of fumes escaping.

Third technical problem to be solved in the utility model is to provide a kind of oil suction that can be realized cooking fume guiding Smoke machine.

The utility model solves technical solution used by above-mentioned first technical problem are as follows: a kind of range hood, including Blower hood, the exhaust fume collecting hood below blower hood, the blower hood have the inner cavity that passes through for oil smoke, outside the blower The outlet end of cover is connected with outlet housing, it is characterised in that: further includes having the fluid independently of blower hood inner cavity setting logical The input end in road, fluid channel is connected with outlet housing, and outlet end and the blower hood inner cavity and/or exhaust fume collecting hood of fluid channel are enclosed At smoke-collecting area be connected, be additionally provided in the fluid channel can be different according to wind pressure at outlet housing and be connected, close stream Body channel and the switch block for adjusting fluid channel wind body flow.

The utility model solves technical solution used by above-mentioned second technical problem are as follows: an at least left side for the exhaust fume collecting hood Right two sides are provided with the air-out chamber independently of smoke-collecting area, are provided with and communicated with outlet air between the air-out chamber and the smoke-collecting area of exhaust fume collecting hood Mouthful, the outlet end of the fluid channel is connected with air-out chamber.

In order to guarantee good air curtain effect, the air outlet is located at the lower edge on the inside of exhaust fume collecting hood.

In order to enable the outlet air of air outlet is uniform, screens are provided in the air-out chamber, the screens are located at fluid Between the outlet and air outlet in channel.

The utility model solves technical solution used by above-mentioned third technical problem are as follows: the blower hood is at least The left and right sides is provided with the diversion cavity independently of blower hood inner cavity, is connected to and sets between the diversion cavity and the inner cavity of blower hood It is equipped with deflector hole, the outlet end of the fluid channel is connected with diversion cavity.

In order to which diversion effect is effectively ensured, and then enough guiding are proposed for the air-flow exported in diversion cavity, the blower hood Position on inner sidewall corresponding to deflector hole, which tilts upward, is provided with deflector.

In order to concentrate water conservancy diversion air-flow, the deflector includes the first plate body and the setting being respectively arranged above deflector hole The second plate body below deflector hole.

Preferably, the deflector hole is located at the inlet portion of blower hood.

Aesthetically, the side wall of at least left and right sides of the exhaust fume collecting hood turns up and extends upwardly on blower hood and formed Cavity is provided with baffle and the cavity is divided into mutually independent first chamber and second chamber in the cavity, described First chamber is located at the periphery of second chamber, and the first chamber constitutes the air-out chamber, and the diversion cavity corresponds to deflector hole Position be independently arranged in second chamber.

Simply, in the two sides of the blower hood independent air hose is arranged in structure, and the pipeline in the air hose constitutes institute State fluid channel.

The air hose includes the public tube body being connected with outlet housing and the first isocon for being connected with public tube body Outlet with the second isocon, first isocon is connected with air-out chamber, the outlet and diversion cavity of second isocon It is connected.

Simply and at low cost, the fluid channel has bent area to structure, and the switch block is arranged in the bending In area；

The switch block includes elastic component and the plug that is connected on elastic component, and the elastic component is connected to bent area Interior, the plug is can extend under the action of the elastic member in the channel in bent area side, the edge of the plug and bending The inner wall of one wing passage of area fits.

In order to which the direction of motion for plug provides guiding, the branch for being oriented to the plug is additionally provided in the bent area Frame, the extending direction of the bracket and the elastic acting force direction of elastic component are parallel.

Pipeline is set on the inner wall or outer wall of the blower hood to form the fluid channel.

Compared with the prior art, the advantages of the utility model are: the range hood in the utility model is independently of blower The inner cavity of outer cover, which is provided with, is connected to fluid channel between wind-collecting cover and fume exhaust path upstream, then when carrying on the back in common flue When pressing larger, oil smoke can be back to fume exhaust path upstream under the drainage of fluid channel, alleviate common flue Smoke evacuation pressure.And the partial fume in fluid channel is entered, oil smoke has already passed through the fume exhaust path of range hood Abundant filter deposition, the greasy dirt of flue gas greatly reduces, and clean level is higher, influences not from after air outlet discharge on kitchen environment Greatly.In addition, from the smoke-collecting area that is surrounded to blower hood inner cavity and/or exhaust fume collecting hood of smoke backflow that fluid channel exports, when drawing Enter into blower hood intracavitary, cooking fume guiding can be played the role of, when being introduced into the smoke-collecting area that exhaust fume collecting hood surrounds, then can The effect to form air curtain is played, and then prevents fumes escaping.

Detailed description of the invention

Fig. 1 is the perspective view of range hood in the utility model embodiment.

Fig. 2 is the cross-sectional view of range hood in the utility model embodiment.

Specific embodiment

The utility model is described in further detail below in conjunction with figure embodiment.

As depicted in figs. 1 and 2, the range hood in the present embodiment, including blower 1, blower hood 2, exhaust fume collecting hood 3, outlet air Cover 4, air hose 6, screens 200, switch block 7.

The connection of exhaust fume collecting hood 3 is arranged below blower hood 2, has the inner cavity passed through for oil smoke, exhaust fume collecting hood in blower hood 2 3 lower section, which is enclosed, to be set to form smoke-collecting area, which is connected with the inner cavity in blower hood 2.The smoke-collecting area of exhaust fume collecting hood 3 and blower Inner cavity in outer cover 2 collectively forms fume exhaust path.Outlet housing 4 is connected to outlet port and the common flue of blower hood 2 Entrance between, and then realize the connection between 2 inner cavity of blower hood and common flue.

It is provided with blower 1 in blower hood 2, under the drive of blower, oil smoke is driven to pass through wind from the smoke-collecting area of exhaust fume collecting hood 3 The inner cavity of machine outer cover 2 is conveyed into outlet housing 4.Various types of blowers in existing range hood, the wind can be used in blower 1 Machine 1 has the components such as spiral case 11, and the outlet end of spiral case 11 is connected with outlet housing 4.

2 inner cavity of blower hood is provided with fluid channel, the input end of the fluid channel is connected with outlet housing 4, The smoke-collecting area that the outlet end of fluid channel in the present embodiment is surrounded with 2 inner cavity of blower hood, exhaust fume collecting hood 3 is respectively communicated with.It can be with Pipeline is directly set on the wall surface of blower hood 2 to form fluid channel, or can on the outside of the wall surface of blower hood 2 or Pipeline is become placed against on the inside of person, and then forms fluid channel.But in order to facilitate the installation of and disassembly, in the present embodiment, in blower Air hose 6 is respectively set outside the left and right sides wall of outer cover 2, the pipeline composition in air hose 6 then constitutes fluid channel.

The arrival end of two air hoses 6 is connected to the left and right sides of outlet housing 4 in the present embodiment, and air hose 6 with go out Fan housing 4 is connected.Air hose 6 includes public tube body 61, the first isocon 62 and the second isocon 63, wherein public tube body 61 One end be connected on the side wall of outlet housing 4 so that public tube body 61 is connected with the inner cavity of outlet housing 4.First shunts Pipe 62, the second isocon 63 are then both connected to the other end of public tube body 61.Specifically, public tube body and first can be shunted Pipe 62 is set as a tube body, opening is opened up on the tube body, and then the second isocon 63 is connected in the opening.Or it can To set a tube body for public tube body and the second isocon 63, opening is opened up on the tube body, and then by the first isocon 62 are connected in the opening.

Wherein, the trend of the air hose 6 in the present embodiment and the outer contour of blower hood 2, exhaust fume collecting hood 3 match, i.e., public Condominium body 61 bends setting in the position close to outlet housing 4, and then makes full use of the space of 3 top of exhaust fume collecting hood.I.e. public tube body 61 first extend laterally away from outlet housing 4, and then extend still further below after the bending of 2 corner of blower hood, and then close to blower The position of 2 lower part of outer cover starts bifurcated, and then the first isocon 62 of formation, the second isocon 63 are respectively communicated to exhaust fume collecting hood 3 Intracavitary in smoke-collecting area, blower hood 2, the outlet of specially the first isocon 62 is connected with the smoke-collecting area of exhaust fume collecting hood 3, and second point The outlet of flow tube 63 is connected with 2 inner cavity of blower hood.

Such air hose 6 has one section of bent area 60 in 2 corner of blower hood, and switch block 7 is then arranged in bent area 60 It is interior.The switch block 7 includes elastic component 71 and the plug 72 that is connected on elastic component 71, the plug 72 in the present embodiment be with The sheet body that the inner wall of 60 side interconnection of bent area matches.Elastic component 71 uses spring, and one end of the elastic component 71 connects On bent area 60, the other end is then connected with plug 72.The property force direction of elastic component 71 and 60 side of bent area are lateral The axis in channel is parallel.In addition the bracket 73 for guiding plug 72 is horizontally arranged in bent area 60, the bracket 73 To can be set to strip piece, which does not block the airflow space in bent area 60.The extending direction of the bracket 73 It is parallel with the elastic acting force direction of elastic component 71, i.e., it is parallel with the axis of 60 side interconnection of bent area.Plug 72 The inner wall at edge and 60 side interconnection of bent area fit, and the plug 72 is supported on bracket 73, in bracket 73 Guiding role under moved.Can be connected during plug 72 is mobile the fluid channel, close the fluid channel with And adjust the air flow rate of the fluid channel.

At least left and right sides of exhaust fume collecting hood 3 is provided with the air-out chamber 30 independently of smoke-collecting area, it is of course also possible in exhaust fume collecting hood Air-out chamber 30 of 3 setting in one week independently of smoke-collecting area.In order to guarantee that product can be popularized in most of home in the present embodiment It uses, only in the left and right sides of exhaust fume collecting hood 3 setting air-out chamber 30 to cooperate two air hoses 6 above-mentioned to use.

At least left and right sides of blower hood 2 is provided with the diversion cavity 20 independently of 2 inner cavity of blower hood certainly can also With the diversion cavity 20 in setting in one week of blower hood 2 independently of 2 inner cavity of blower hood.In order to guarantee product energy in the present embodiment Enough popularize in most of home uses, and the left and right sides of blower hood 2 is only provided with the water conservancy diversion independently of 2 inner cavity of blower hood Chamber 20, to cooperate two air hoses 6 above-mentioned to use.

In the present embodiment, the side wall of exhaust fume collecting hood 3 turns up and extends upwardly on blower hood 2 and form a cavity, Being extended along the longitudinal direction respectively in the space of the left and right sides of exhaust fume collecting hood 3 in cavity has vertical baffle 5, the baffle The space of the left and right sides of exhaust fume collecting hood 3 is divided into mutually independent first chamber and second chamber by 5, and wherein first chamber is located at The periphery of second chamber, the first chamber then constitute air-out chamber 30, and the outlet of the first isocon 62 then extends to the air-out chamber 30 It is interior, and air outlet 31 is offered close to the lower edge of the inner sidewall of smoke-collecting area in air-out chamber 30.I.e. the air outlet 31 is just opened It is located at the lower edge of 3 inner sidewall of exhaust fume collecting hood, air outlet is provided with a row along the longitudinal direction, i.e. the air outlet 31 and exhaust fume collecting hood 3 Smoke-collecting area realize connection.Screens 200 are provided in air-out chamber 30, which is located at the outlet of the first isocon 62 Between air outlet 31.The screens 200 and the distribution of air outlet 31 are correspondingly arranged, and are exported and are entered from the first isocon 62 It is uniformly discharged from air outlet 31 to the flue gas in air-out chamber 30 by the rectified action of screens 200, and then forms air curtain, so It is possible to prevente effectively from the range except the fumes escaping to air curtain generated in cooking process.The screens 200 are also additional to be had pair The effect of smoke filtration improves the clean-up performance that flue gas is discharged from air outlet 31, avoids the pollution to kitchen environment.

Diversion cavity 20 in the present embodiment is arranged in second chamber, specifically: a box like structure is resisted against the second chamber The side wall of indoor is on the position of the inlet portion of blower hood 2 namely the box like structure is resisted against 2 inlet portion of blower hood Side wall on, and then the side wall of the box like structure and blower hood 2 enclose set constitute diversion cavity 20.The outlet of second isocon 63 is then Extend in the diversion cavity 20 and then realize the connection of air hose 6 and diversion cavity 20.Correspond to water conservancy diversion on the side wall of blower hood 2 The position of chamber 20 opens up deflector hole 21, and deflector hole 21 is disposed with multiple along the front-rear direction of blower hood 2, and then realizes wind The connection of machine outer cover 2 inner cavity and diversion cavity 20.In order to enable can draw from the air-flow that deflector hole 21 is introduced into 2 inner cavity of blower hood Guiding oil fume is quickly flowed to 4 direction of outlet housing, and the extending direction for corresponding to deflector hole 21 is provided with deflector in the present embodiment 22, deflector 22 includes for being respectively arranged at the first plate body 221 of the top of deflector hole 21 and being set to 21 lower section of deflector hole Two plate bodys 222.Deflector 22 is respectively set in upper and lower, and each deflector 22 is tilted into blower hood 2 to direction from blower hood 2 It sets up, so that aweather machine outer cover can be tilted upward under the guiding of deflector 22 from the air-flow that deflector hole 21 introduces 2 inner cavity is blown, and then realizes the drainage to oil smoke.Simultaneously under the limitation of deflector 22, drainage air-flow is more concentrated, Drainage effect is more preferable.

The course of work of the range hood are as follows: after range hood starts work, in the lesser situation of oil smoke, 1 work of blower Work can guarantee to be not in the case where oil smoke is escaped from 3 two sides of exhaust fume collecting hood substantially.Stream pressure at outlet housing 4 also phase at this time Smaller to meeting, then under the action of elastic component 71, plug 72 can be rested in 60 side horizontal pipeline of fluid channel bent area, into And block fluid channel.The smoke evacuation work of oil smoke can also be completed in range hood well substantially without drainage at this time. When oil smoke is larger or common flue blocks, the stream pressure at outlet housing 4 also can be higher, at this time in outlet housing 4 Stream pressure can be greater than elastic component 71 to the active force of plug 72, at this time the stream pressure in outlet housing 4 will push plug 72 to It is moved in bent area 60, after plug 72 is mobile is more than the aperture position of 60 other side vertical duct of fluid channel bent area, then So that fluid channel is connected, according to the difference of the stream pressure in outlet housing 4, so that 60 other side of fluid channel bent area is vertical The opening area of the opening of pipeline is different, and so according to specific stream pressure, the air flow rate in fluid channel is adapted to The adjustment of property.It enters air-flow a part in fluid channel to export by the first isocon 62 to air-out chamber 30, Jin Erzai It is blown out through air outlet 31, forms air curtain in the two sides of exhaust fume collecting hood 3, avoid fumes escaping, effectively all aggregation extremely collects cigarette by oil smoke In the smoke-collecting area of cover 3.Air-flow another part in fluid channel is entered to export by the second isocon 63 to diversion cavity 20, And then blown out again through deflector hole 21, the drainage to oil smoke is played in blower hood 2, accelerates the discharge of oil smoke.

Claims (14)

1. a kind of range hood, including blower hood (2), the exhaust fume collecting hood (3) being set to below blower hood (2), outside the blower Cover (2) has the inner cavity passed through for oil smoke, and the outlet end of the blower hood (2) is connected with outlet housing (4), it is characterised in that: It further include the fluid channel having independently of the setting of the blower hood (2) inner cavity, input end and outlet housing (4) phase of fluid channel Connection, the outlet end of fluid channel are connected with the smoke-collecting area that blower hood (2) inner cavity and/or exhaust fume collecting hood (3) surround, the stream Being additionally provided in body channel can be connected according to wind pressure difference at outlet housing (4), close fluid channel and adjust fluid and lead to The switch block (7) of road wind body flow.

2. range hood according to claim 1, it is characterised in that: at least left and right sides of the exhaust fume collecting hood (3) is provided with Independently of the air-out chamber (30) of smoke-collecting area, outlet air is provided with and communicated between the air-out chamber (30) and the smoke-collecting area of exhaust fume collecting hood (3) Mouth (31), the outlet end of the fluid channel is connected with air-out chamber (30).

3. range hood according to claim 2, it is characterised in that: the air outlet (31) is located on the inside of exhaust fume collecting hood (3) At lower edge.

4. range hood according to claim 2, it is characterised in that: screens (200) are provided in the air-out chamber (30), The screens (200) are located between the outlet of fluid channel and air outlet (31).

5. range hood according to claim 2, it is characterised in that: at least left and right sides setting of the blower hood (2) There is the diversion cavity (20) independently of blower hood (2) inner cavity, is connected between the diversion cavity (20) and the inner cavity of blower hood (2) It is provided with deflector hole (21), the outlet end of the fluid channel is connected with diversion cavity (20).

6. range hood according to claim 5, it is characterised in that: correspond on the inner sidewall of the blower hood (2) and lead The position of discharge orifice (21), which tilts upward, is provided with deflector (22).

7. range hood according to claim 6, it is characterised in that: the deflector (22) includes being respectively arranged at deflector hole (21) the first plate body (221) above and the second plate body (222) being set to below deflector hole (21).

8. range hood according to claim 5, it is characterised in that: the deflector hole (21) is located at entering for blower hood (2) Oral area.

9. range hood according to claim 5, it is characterised in that: the side wall of at least left and right sides of the exhaust fume collecting hood (3) It turns up and extends upwardly on blower hood (2) and form cavity, baffle (5) is provided in the cavity and divides the cavity It is segmented into mutually independent first chamber and second chamber, the first chamber is located at the periphery of second chamber, the first chamber It constitutes the air-out chamber (30), the position that the diversion cavity (20) corresponds to deflector hole (21) is independently arranged in second chamber.

10. range hood according to claim 5, it is characterised in that: in the two sides of the blower hood (2), setting is independent Air hose (6), the pipeline in the air hose (6) constitute the fluid channel.

11. range hood according to claim 10, it is characterised in that: the air hose (6) includes being connected with outlet housing (4) Public tube body (61) and the first isocon (62) and the second isocon (63) that are connected with public tube body (61), it is described The outlet of first isocon (62) is connected with air-out chamber (30), outlet and diversion cavity (20) phase of second isocon (63) Connection.

12. range hood according to claim 1, it is characterised in that: the fluid channel has bent area (60), described to open Component (7) setting is closed in the bent area (60)；

The switch block (7) includes elastic component (71) and the plug (72) being connected on elastic component (71), the elastic component (71) it is connected in bent area (60), the plug (72) can extend under the action of elastic component (71) in bent area (60) one In the channel of side, the inner wall at the edge and (60) one wing passage of bent area of the plug (72) fits.

13. range hood according to claim 12, it is characterised in that: be additionally provided in the bent area (60) for being oriented to The extending direction of the bracket (73) of the plug (72), the bracket (73) is equal with the elastic acting force direction of elastic component (71) Row.

14. range hood according to claim 1, it is characterised in that: on the inner wall or outer wall of the blower hood (2) Pipeline is set to form the fluid channel.