CN218645621U

CN218645621U - Range hood inlet scoop structure and range hood

Info

Publication number: CN218645621U
Application number: CN202222100337.2U
Authority: CN
Inventors: 任勇; 李�杰; 岑振宙; 冯君; 李注佳
Original assignee: Foshan Jingwei Technology Co ltd
Current assignee: Foshan Jingwei Technology Co ltd
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2023-03-17
Anticipated expiration: 2032-08-10

Abstract

The utility model discloses a range hood inlet scoop structure and range hood, the range hood inlet scoop structure includes the panel, is equipped with the inlet scoop on the panel, the upper edge of inlet scoop is provided with the wind-guiding liquid-guiding piece, the wind-guiding liquid-guiding piece includes the wind-guiding liquid-guiding portion, the lower surface of the wind-guiding liquid-guiding portion is the liquid-guiding surface; the lower edge of the air suction opening is provided with a liquid receiving air guide piece which is provided with an oil dripping hole; the air guide liquid guide piece is provided with a liquid collecting part, and liquid collected by the liquid collecting part drips down and falls into the bearing part of the liquid receiving air guide piece through ventilation airflow at the air suction opening; compared with the prior art, the utility model discloses a range hood inlet scoop structure can will gather the liquid of inlet scoop department by the panel outside and guide in to the collection bellows to let liquid drip to the liquid wind guide that connects that the lower edge of inlet scoop set up on, and by in the oil drip hole that connects on the liquid wind guide drips to the collection bellows, avoid the liquid drop of the dropwise drop of inlet scoop department of panel can fall on the mesa of kitchen, the culinary art eats the material in and user's is on hand, improve the user's body.

Description

Range hood inlet scoop structure and range hood

Technical Field

The utility model relates to a range hood technical field specifically, relates to a range hood inlet scoop structure and range hood.

Background

The range hood is arranged above a kitchen range and used for extracting and discharging oil smoke generated in the process of cooking food when a user cooks the food, an exhaust inlet is usually arranged on a panel of the range hood, and the oil smoke generated in cooking is sucked into an air channel of the air collecting box by the exhaust inlet when a fan of the range hood is started. Because the panel has the slope section, the inlet scoop of panel is located on the slope section of panel, in long-term use, the liquid drop of the slope section gathering of panel can follow the slope section downward flow of panel, when the inlet scoop of panel flows through, can be from the downward drippage of inlet scoop department of panel, because the inlet scoop is to the section at the slope of panel, the liquid drop of dropping by the inlet scoop department of panel can fall on the mesa of kitchen, when the user cooks the operation, still can fall in the culinary art edible material, perhaps the user is on hand, can obviously influence user's experience.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a range hood inlet scoop structure and range hood, it is used for solving above-mentioned technical problem.

An air suction opening structure of a range hood comprises a panel, wherein an air suction opening is arranged on the panel, an air guide and liquid guide member is arranged on the upper edge of the air suction opening, the air guide and liquid guide member comprises an air guide and liquid guide part, and the lower surface of the air guide and liquid guide part is a liquid guide surface; the lower edge of the air suction opening is provided with a liquid receiving air guide piece, and the liquid receiving air guide piece is provided with an oil dripping hole for dripping oil downwards; the air guide liquid guide piece is provided with a liquid collecting part, and liquid collected by the liquid collecting part drips and falls into the receiving part of the liquid receiving air guide piece through ventilation airflow at the air suction opening.

According to an embodiment of the present invention, the air guiding and guiding member has a guiding end close to or connected to the panel, and the guiding end is used for receiving liquid flowing down from the butt end of the panel; the connecting end is connected with the air guiding liquid guiding part, and forms a wetting gap with the butt joint end of the panel, the width of the wetting gap is 0.5mm-1.5mm, and the wetting gap is of a structure with a large lower side and a small upper side.

According to the utility model discloses an embodiment, the body of wind-guiding liquid guiding portion is platelike, forms decurrent contained angle alpha with the perpendicular, and 10 ° < alpha is less than or equal to 75, has a plurality of first wind-guiding through-holes on wind-guiding liquid guiding portion, and the inlet scoop air inlet flows to the oblique top from one side of leading the liquid level, and the liquid level that leads that lies in between the first wind-guiding through-hole in the body of wind-guiding liquid guiding portion is effective liquid level of leading.

According to the utility model discloses an embodiment, the wind-guiding draws liquid spare to include panel connection portion, panel connection portion have with the locating surface of panel location, the locating surface draws the length direction extension of liquid spare along inlet scoop and wind-guiding respectively with the corresponding face of panel, panel connection portion is thin wall elastic plate to form the clearance with the corresponding face of panel, panel connection portion is through the corresponding face of the fixed knot structure fixed connection panel that sets up along its length direction.

According to the utility model discloses an embodiment, the medial surface and the perpendicular of panel connecting portion form ascending contained angle beta, and beta is not less than 10 ≦ beta is not less than 35, draws liquid portion upper surface to flow to gathering liquid portion along the wind-guiding from the liquid that the medial surface of panel connecting portion flowed down.

According to an embodiment of the present invention, the liquid receiving wind guide member includes a wind guide section which guides wind obliquely upward, and the wind guide section is connected to the receiving portion; the liquid receiving and air guiding component is detachably connected with the lower edge of the air suction opening.

According to the utility model discloses an embodiment, the both sides of inlet scoop have the side decoration, the side decoration of the both sides of inlet scoop have respectively with the left side of inlet scoop and the shape of right side shape adaptation, and include the outward appearance face, be formed with the second wind-guiding through-hole that accesss to range hood's the passageway that induced drafts at the outward appearance face.

According to an embodiment of the present invention, the air guiding section is arc-shaped, and the range of the air outlet angle is 130 to 175 degrees; the air inlet of the air suction opening forms four air flows which are respectively as follows: the main air flow is an air flow which is pressed downwards along the initial direction formed among the air guide liquid guide part, the bearing part and the air guide section and is in an oblique upper direction backwards; the inlet air passes through the first air guide through hole of the air guide liquid guide part to form upward airflow; the air inlet penetrates through the left air flow formed by the second air guide through hole of the left side decoration piece and the air inlet penetrates through the right air flow formed by the second air guide through hole of the right side decoration piece.

A range hood comprises the range hood exhaust inlet structure, and further comprises an air collecting box and an exhaust fan arranged in the air collecting box, wherein an air inlet of the air collecting box is formed in the air collecting box, and the exhaust inlet is communicated with the air inlet of the air box.

According to an embodiment of the present invention, the air inlet is a strip-shaped, including an upper edge, a lower edge, a left side corner and a right side corner, the upper edge and the lower edge are parallel and horizontally disposed; the upper edge of the panel self-suction opening is folded inwards to form a linking part and a butting part, and the linking part is linked with the part of the panel positioned on the upper edge of the suction opening and is bent towards the inner side of the panel; the joint part and the joint part form a joint end; the butt joint part is formed by bending one end of the joint part far away from the panel upwards, and one surface of the joint part far away from the panel is a corresponding surface which is arranged opposite to a positioning surface of the panel connecting part of the wind guide liquid guide piece on the panel.

According to an embodiment of the present invention, the panel has an inclined section, the inclined section and the vertical surface form a first downward inclination angle γ, and the range of the first inclination angle is: gamma is more than or equal to 20 degrees and less than or equal to 30 degrees; the panel has butt joint end, and the panel and the perpendicular face at butt joint end form decurrent second inclination angle theta, and the scope of second inclination angle is: theta is more than 10 degrees and less than or equal to 75 degrees, and the inclination angle of the panel at the butt joint end is the same as that of the oil guide surface of the air guide liquid guide piece.

According to an embodiment of the present invention, the air collecting box is divided into an air box section and a fan housing section, the air box section is located below the fan housing section, the air inlet of the air box is located in the air box section, the exhaust fan is obliquely located in the fan housing section, and the air inlet of the exhaust fan is obliquely arranged and faces the rear side wall surface of the fan housing section; the air current of the air inlet is guided to the rear side of the fan containing section through the air guide section of the liquid receiving air guide piece and enters the air inlet of the air exhaust fan.

According to the utility model discloses an embodiment is formed with on the internal face of the bellows preceding curb plate of collection case and keeps off oily bounding wall, keeps off oily bounding wall including the straight section of fender oil bounding wall that sets up along the inlet scoop and locate the vertical section of fender oil bounding wall that keeps off oily bounding wall straight section both sides and be connected with fender oil bounding wall straight section, keeps off the internal face of the ventiduct between the lateral wall face of the ventiduct of oily bounding wall vertical section and collection case and forms the oil flow passageway.

According to the utility model discloses an embodiment, the straight section of fender oil bounding wall that is located inlet scoop below is provided with draining gap or draining hole.

Compared with the prior art, the utility model discloses a range hood inlet scoop structure has following advantage:

the utility model discloses a range hood inlet scoop structure, the reason of going up of inlet scoop is provided with wind-guiding liquid guide, can will gather the liquid of inlet scoop department by the panel outside and guide in to the case that gathers, and let liquid drip to the liquid guide that connects that the lower edge of inlet scoop set up, and drip to the case that gathers by the oil drip hole that connects on the liquid guide, avoid the dropped liquid drop of inlet scoop department of panel can fall on the mesa of kitchen, the culinary art eats the material in and on user's hand, improve user experience.

Drawings

Fig. 1 is a schematic structural view of the structure of the exhaust inlet of the range hood of the present invention;

FIG. 2 is an exploded view of the structure of the suction inlet of the range hood of the present invention;

FIG. 3 is a cross-sectional view of the structure of the suction inlet of the range hood of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is a partial enlarged view of B in FIG. 4;

FIG. 6 is a schematic view of the side garnish of FIG. 2;

FIG. 7 is a schematic view of the side garnish of FIG. 2 in another orientation;

FIG. 8 is a cross-sectional view of the range hood of the present invention;

FIG. 9 is a schematic structural view of a wind collecting box of the range hood;

fig. 10 is a sectional view of the oil smoke sucking device of the present invention in another direction;

FIG. 11 is an enlarged view of a portion C of FIG. 10;

FIG. 12 is a schematic structural view of the housing;

fig. 13 is a schematic structural view of a fan oil baffle plate of the range hood;

in the figure: 1. the air guide structure comprises a panel, 11 air suction openings, 12 butt joint ends, 13 inclined sections, 14 connecting parts, 15 oil retaining structures, 2 air guide liquid guiding pieces, 21 connecting ends, 22 liquid gathering parts, 23 air guide liquid guiding parts, 231 air guide through holes, 24 panel connecting parts, 3 liquid receiving air guiding pieces, 31 oil drip holes, 32 bearing parts, 33 air guide sections, 4 side decoration pieces, 41 second air guide through holes, 42 side decoration piece connecting parts, 43 air dispersing parts, 44 combining edges, 45 support edges, 46 air guide parts, 5 fan oil retaining plates, 51 oil receiving parts, 52 oil retaining plate air guide parts, 53 air guide strips, 531 base planes, 532 air guide direction sections, 54 first air bellow oil leakage holes, 6 air collecting strips, and a fan oil retaining plate 61, an air box section, 62, a fan accommodating section, 63, an air box bottom plate, 631, oil leakage holes, 632, a bottom plate connecting part, 64, an air box front side plate, 641, an avoiding position, 7, an exhaust fan, 71, an oil discharge hole, 8, an oil baffle wall plate, 81, an oil baffle wall plate straight section, 82, an oil baffle wall plate vertical section, 9, a shell, 91, a first connecting piece, 911, a vertical connecting surface, 912, a horizontal connecting surface, 92, a second connecting piece, 921, a first supporting section, 922, a second supporting section, 923, a connecting section, 93, a third connecting piece, 931, a first connecting part, 932, a second connecting part, 94, an air box sealing piece, 95, an air duct through hole, 96, a fourth connecting piece and a infiltration gap

The utility model discloses realization and the advantage of function will combine the embodiment, will make further explanation with the attached drawing.

Detailed Description

In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of various embodiments of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

It should be noted that all the directional indicators (such as upper, lower, left and right, front and rear … …) in the embodiments of the present invention 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 indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for description purposes, not specifically referring to the order or sequence, and are not intended to limit the present invention, but only to distinguish the components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit indication of 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.

For further understanding of the contents, features and effects of the present invention, the following embodiments are exemplified in conjunction with the accompanying drawings as follows:

the range hood is arranged above a kitchen range and used for extracting and discharging oil smoke generated in the process of cooking food when a user cooks the food, an exhaust inlet is usually arranged on a panel of the range hood, and the oil smoke generated in cooking is sucked into an air channel of the air collecting box by the exhaust inlet when a fan of the range hood is started. Because the panel is provided with the inclined section, and the air suction opening of the panel is arranged on the inclined section of the panel, in the long-term use process, oil smoke and water vapor can be gathered at the inclined section of the panel and form liquid, the main components of the liquid are oil and water, and other oil smoke components can be dissolved in the liquid; according to different cooking materials and modes, the component difference of the generated liquid is large, the flowing and dripping speed of the liquid is slow under the condition of high liquid viscosity, the flowing and dripping speed of the liquid is fast under the condition of low liquid viscosity, the liquid can drip downwards from the air suction inlet of the panel when flowing through the air suction inlet of the panel when flowing downwards along the inclined section of the panel, and the liquid dripping from the air suction inlet of the panel can fall onto the table top of a kitchen because the air suction inlet is arranged at the inclined section of the panel, and can also fall into the cooking materials or on the hand of a user when the user performs cooking operation, so that the user experience can be obviously influenced; but if set up a guide structure in the inlet scoop inboard of lampblack absorber, can will be by the panel outside gather the liquid of inlet scoop department to guide in the collection bellows to let in liquid drips the collection bellows, finally fall into the collection oil box by the oil leak hole of collection bellows bottom, will improve this problem, improve user experience.

The utility model discloses a range hood inlet scoop structure is exactly for solving from the panel gathering to the problem that the liquid of inlet scoop department drips down and designs, and the purpose is in order to guide the liquid of gathering in inlet scoop department to the collection bellows, avoids the part that liquid is located inlet scoop department from the panel directly to drip in the panel outside downwards. Referring to fig. 1 to 5, the exhaust inlet structure of the range hood of the present invention includes a panel 1, an exhaust inlet 11 is disposed on the panel 1, an air guiding and liquid guiding member 2 is disposed on an upper edge of the exhaust inlet 11, the air guiding and liquid guiding member 2 includes an air guiding and liquid guiding portion 23, and a lower surface of the air guiding and liquid guiding portion 23 is a liquid guiding surface; a liquid receiving and air guiding component 3 is arranged on the lower edge of the air suction opening 11, and the liquid receiving and air guiding component 3 is provided with an oil dripping hole 31 for dripping oil downwards; the air guide and liquid guide member 2 is provided with a liquid collecting part 22, and liquid collected by the liquid collecting part 22 drops down and falls into a bearing part 32 of the air guide member through ventilation air flow at the air suction opening 11. Utility model's range hood inlet scoop structure, if the outside of panel 1 is called to panel 1 with panel 1 towards the one side of user, then panel 1 back to the one side of user then is called the inboard of panel 1, wind-guiding liquid guiding piece 2 is located the inboard of panel 1, in the utility model discloses, the upper edge of inlet scoop 11 has set up the wind-guiding liquid guiding piece 2 that is located the inboard of panel 1, wind-guiding liquid guiding piece 2 is just the guide structure who is used for guiding the liquid gathering in inlet scoop 11 department outside panel 1 to the collection bellows, wind-guiding liquid guiding piece 2 includes wind-guiding liquid guiding portion 23, the lower surface of wind-guiding liquid guiding portion 23 is the liquid guide face, the part that is located the top of inlet scoop 11 to the liquid gathering of inlet scoop 11 department and downward drippage can be guided by wind-guiding liquid guiding portion 23, and flow to collection liquid portion 22 along the liquid guiding face, then gather to collection liquid guiding portion 22 of wind-guiding liquid guiding piece 2, the projection of liquid gathering portion 22 is located the collection bellows, and the distance of collection liquid portion 22 downward projection is less than the collection bellows lower extreme of collection liquid gathering oil collecting portion 32, then the liquid is followed collection liquid portion 32 and the collection oil collecting oil drip is followed by collection bellows, then the collection liquid collecting portion 32 and the oil collecting oil drip is followed by the collection drip portion 32, then, the last drip is followed by the collection drip oil collecting oil drip portion 32 and is followed by the collection bellows to the collection drip oil collecting portion and is followed by the collection bellows, the drip oil collecting oil drip portion 31, the drip oil collecting portion 32 when the collection bellows is followed the collection portion 32; in the process that liquid drops downwards from the liquid collecting part 22, liquid drops pass through the ventilation airflow from the air suction opening 11, the ventilation airflow flows into the air collecting box through the air suction opening 11, when an exhaust fan of the range hood runs at a high wind shield, the ventilation airflow can blow the liquid drops into the air collecting box, so that the liquid drops further fall into the air collecting box, and the liquid drops dropped from the liquid collecting part 22 can be ensured to fall into the bearing part 32 of the liquid receiving air guide piece 3 and cannot drop to the outer side of the panel 1.

Referring to fig. 5, in the exhaust inlet structure of the range hood of the present invention, the wind guiding liquid guiding member 2 has a leading end 21 close to or connected with the panel 1, and the leading end 21 is used for receiving the liquid flowing down from the butt end 12 of the panel 1; the leading end 21 is connected with the air guiding and liquid guiding part 23, and the leading end 21 and the butt end 12 of the panel 1 form a wetting gap a, the width of the wetting gap a is 0.5mm-1.5mm, and the wetting gap a has a structure with a large lower side and a small upper side. The infiltration gap a is used for guiding the liquid at the air suction opening 11 of the panel 1 to the liquid guide surface, after the air guide liquid guide piece 2 is connected with the inner side of the panel 1, the connection end 21 is close to the panel 1 and is connected with the panel 1 from the inner side of the panel 1, and the liquid outside the panel 1 is gathered to the butt joint end 12 of the panel 1 when flowing downwards along the panel 1, then enters the infiltration gap a from the butt joint end 12 and is gathered in the infiltration gap a; when the liquid in the wet gap a is fully gathered, the liquid flows to the leading end 21, then flows to the liquid guiding surface of the air guiding and liquid guiding part 23 from the leading end 21, the liquid continuously flows along the liquid guiding surface, and finally is gathered in the liquid gathering part 22, when the liquid drops at the liquid gathering part 22 are large enough, the liquid drops drop downwards from the liquid gathering part 22, when the range hood is started, the air suction opening 11 is provided with ventilation air to blow towards the inside of the air gathering box, the liquid drops pass through the ventilation air, are blown by the ventilation air and float in the air gathering box, finally fall onto the liquid receiving and air guiding part 3, and when the liquid drops on the liquid receiving and air guiding part 3 are gathered to a sufficient amount, the liquid drops drop from the oil dropping hole 31 on the liquid receiving and air guiding part 3. When the liquid on the panel 1 at the air suction port 11 flows along the panel 1, because the liquid has a certain viscosity, when the liquid drops are relatively small, the liquid drops do not directly drop from the panel 1, and only continuously gather towards the butt joint end 12 of the panel 1, then enter the infiltration gap a and gather in the infiltration gap a, the infiltration gap a has a structure with a large lower side and a small upper side, the liquid drops gather in the infiltration gap a, when the liquid drops are fully gathered in the infiltration gap a, the liquid drops flow towards the connection end 21 and flow towards the liquid surface through the connection end 21, and after flowing to the liquid guide surface, the liquid drops gather towards the liquid gathering part 22 along the liquid guide surface, and when the liquid drops of the liquid gathering part 22 gather to the gravity to overcome the viscosity, the liquid drops drop downwards from the liquid gathering part 22.

Referring to fig. 4 and 5, in the suction inlet structure of the range hood of the present invention, the body of the air guiding and liquid guiding portion 23 is plate-shaped, and forms a downward included angle α with the vertical surface, the included angle is in the range of 10 ° < α ≤ 75 °, a plurality of first air guiding through holes 231 are formed in the air guiding and liquid guiding portion 23, the air from the suction inlet 11 flows obliquely upward from one side of the liquid guiding surface, and the liquid guiding surface located between the first air guiding through holes 231 in the body of the air guiding and liquid guiding portion 23 is an effective liquid guiding surface. The body of the air guiding and liquid guiding part 23 forms a downward included angle with the vertical plane, that is, a plate which is inclined downwards from one end close to the upper edge of the air suction opening 11 to one end far away from the upper edge of the air suction opening 11 is arranged on the upper edge of the air suction opening 11 on the inner side of the panel 1, that is, the body of the air guiding and liquid guiding part 23 is inclined downwards relative to the vertical plane, so that the body of the air guiding and liquid guiding part 23 actually reduces the effective air outlet area of the air suction opening 11, and forms a downward pressure on the inlet air passing through the air suction opening 11; that is, when the inlet air from the inlet 11 flows into the air collection box through the inlet 11, the body of the air guiding and liquid guiding portion 23 guides the inlet air, and when the inlet air flowing into the air collection box along the inlet 11 passes through the inlet 11, the inlet air is pressed downward by the body of the air guiding and liquid guiding portion 23. Under the condition that the effective air outlet area of the air suction opening 11 is reduced, if the air inlet volume of the air suction opening 11 is relatively large, the body of the air guiding and liquid guiding part 23 can influence the speed of the inlet air of the air suction opening 11 flowing into the air collecting box, and further influence the air suction effect of the range hood, so that in order to avoid that the body of the air guiding and liquid guiding part 23 blocks the inlet air when the air inlet volume of the air suction opening 11 is relatively large, a plurality of first air guiding through holes 231 are arranged on the air guiding and liquid guiding part 23, when the inlet air of the air suction opening 11 is pressed down by the air guiding and liquid guiding part 23, part of the inlet air can directly flow into the air collecting box through the first air guiding through holes 231, and the first air guiding through holes 231 can play a role in shunting; since the body of the air guiding and liquid guiding portion 23 is inclined downward with respect to the vertical plane, when the intake air passes through the air suction opening 11 and is pressed downward by the body of the air guiding and liquid guiding portion 23, an acting force opposite to the pressing direction of the air guiding and liquid guiding portion 23 against the air is also formed, and under the acting force, part of the intake air flows into the air collecting box through the first air guiding through holes 231, and the flow direction of the intake air passing through the first air guiding through holes 231 is opposite to the flow direction of the intake air pressed downward and flowing obliquely upward by the air guiding and liquid guiding portion 23, and the part of the intake air flows at the portion of the air collecting box located above the air guiding and liquid guiding portion 23 after passing through the first air guiding through holes 231. Since the air guiding and liquid guiding portion 23 guides liquid from the outside of the panel 1, oil collected on the upper edge of the air suction opening 11 on the panel 1 on the outside of the panel 1 will first collect to the wetting gap a, then flow from the wetting gap a to the connection end 21, then flow to the liquid guiding surface of the air guiding and liquid guiding portion 23 through the connection end 21, and collect to the liquid collecting portion 22 along the liquid guiding surface, so the downward inclination angle of the air guiding and liquid guiding portion 23 with respect to the vertical surface cannot be smaller than the downward inclination angle of the portion of the panel 1 provided with the air suction opening 11 with respect to the vertical surface. The minimum value of the included angle of the air and liquid guiding part 23 which inclines downwards relative to the vertical surface is larger than the included angle of the panel 1 and the vertical surface. When the intake air from the air inlet 11 passes through the air guiding and liquid guiding portion 23, the oil smoke in the intake air pushed down by the air guiding and liquid guiding portion 23 is collected at the portion of the lower surface of the air guiding and liquid guiding portion 23 located between the first air guiding through holes 231, the liquid flowing from the infiltration gap a to the liquid surface also flows along the portion of the lower surface of the air guiding and liquid guiding portion 23 located between the first air guiding through holes 231, and the portion of the lower surface of the air guiding and liquid guiding portion 23 located between the first air guiding through holes 231 serves as an effective liquid guiding surface. The first air guiding through hole 231 is arranged on the body of the air guiding and liquid guiding part 23, so that the air guiding and liquid guiding part 23 has the functions of air guiding and liquid guiding, the air inlet passing of the air suction opening 11 is not influenced, and the liquid drops collected at the air suction opening 11 on the outer side of the panel 1 by the air guiding and liquid guiding part 23 are not influenced to be guided to the liquid collecting part 22.

Please refer to fig. 4 and 5, the utility model discloses a range hood inlet scoop structure, the wind-guiding liquid guiding piece 2 includes panel connecting portion 24, panel connecting portion 24 has the locating surface of fixing a position with panel 1, the locating surface extends along inlet scoop 11 and wind-guiding liquid guiding piece 2's length direction respectively with panel 1's corresponding face, panel connecting portion 24 is the thin wall elastic plate to form the clearance with panel 1's corresponding face, panel connecting portion 24 is through the corresponding face along its fixed knot structure fixed connection panel 1 that length direction set up. The wind-guiding liquid-guiding piece 2 is connected to the inner side of the panel 1 through the panel connecting part 24, one side of the panel connecting part 24 facing the inner side of the panel 1 is used for being connected with the panel 1, the side of the panel connecting part 24 facing the inner side of the panel 1 is a positioning surface of the panel connecting part 24, the inner side of the panel 1 is provided with a corresponding surface corresponding to the positioning surface of the panel connecting part 24 and used for being connected with the panel connecting part 24, the panel connecting part 24 extends along the length direction of the wind-guiding liquid-guiding piece 2, the corresponding surface on the panel 1 extends along the length direction of the air suction opening 11 on the panel 1, and after the panel connecting part 24 is connected with the corresponding surface on the panel 1, the wind-guiding liquid-guiding piece 2 extends along the length direction of the air suction opening 11. When the panel connecting portion 24 is connected to the corresponding surface of the panel 1, the panel connecting portion 24 is a thin elastic plate to ensure the reliability of the connection, and after the panel connecting portion 24 is connected to the corresponding surface of the panel 1, the panel connecting portion 24 is slightly deformed to form a gap between the positioning surface of the panel connecting portion 24 and the corresponding surface of the panel 1. The corresponding surfaces of the panel connecting part 24 and the panel 1 are connected through a fixing structure, the fixing structure can be mutually corresponding holes, and when the panel connecting part 24 is connected, the rivet penetrates through screw holes or rivets on the corresponding surfaces of the panel connecting part 24 and the panel 1 to connect the positioning surface of the panel and the corresponding surface on the panel 1 together. The fixing structure can also be a structure of a buckle and a clamping groove, the buckle and the clamping groove are respectively arranged on the positioning surface of the panel connecting part 24 and the corresponding surface of the panel 1, and when the panel connecting part 24 is connected with the corresponding surface of the panel 1, the clamping groove is arranged at the clamping opening. In the illustrated embodiment, the fixing structure is a hole provided on the panel connecting portion 24 and the corresponding surface of the panel 1, and the panel connecting portion 24 and the corresponding surface of the panel 1 are connected by a screw or a rivet passing through the hole of the two.

Referring to fig. 4 and 5, in the suction inlet structure of the range hood of the present invention, the inner side surface of the panel connecting portion 24 and the vertical surface form an upward included angle β, the included angle is greater than or equal to 10 degrees and less than or equal to 35 degrees, the liquid flowing down from the inner side surface of the panel connecting portion 24 flows down to the liquid collecting portion 22 along the upper surface of the air guiding liquid guiding portion 23, and the liquid flowing down from the inner side surface of the panel connecting portion 24 flows down to the liquid collecting portion 22 along the upper surface of the air guiding liquid guiding portion 23. The side of the panel connecting portion 24 away from the panel 1 is referred to as an inner side surface of the panel connecting portion 24, that is, the inner side surface of the panel connecting portion 24 is a surface opposite to the positioning surface of the panel connecting portion 24. Because a part of the inlet air passing through the air suction opening 11 flows to the part of the air collecting box on the upper surface of the air guiding and liquid guiding part 23 through the first air guiding through hole 231, the liquid in the part of the inlet air is collected on the upper surface of the air guiding and liquid guiding part 23 and the inner side surface of the panel connecting part 24, the liquid collected on the upper surface of the air guiding and liquid guiding part 23 flows to the liquid collecting part 22 along the upper surface of the air guiding and liquid guiding part 23, then drops into the bearing part 32 of the liquid receiving and air guiding member 3 from the liquid collecting part 22, then flows to the oil dropping hole 31 from the bearing part 32, and drops from the oil dropping hole 31; the liquid droplets collected on the inner surface of the panel connecting portion 24 flow down along the inner surface of the panel connecting portion 24 to the upper surface of the air guiding and liquid guiding portion 23, then flow to the liquid collecting portion 22 together with the liquid on the upper surface of the air guiding and liquid guiding portion 23, finally drop into the receiving portion 32 of the liquid receiving and air guiding member 3 from the liquid collecting portion 22, then flow to the oil dropping hole 31 from the receiving portion 32, and drop from the oil dropping hole 31.

It should be noted that, since a part of the intake air passing through the air suction opening 11 flows through the first air guiding through hole 231 toward the portion of the air collecting box located on the upper surface of the air guiding and liquid guiding portion 23, the liquid in this part of the intake air is collected in the gap between the positioning surface of the panel connecting portion 24 and the corresponding surface of the panel 1, the liquid collected in the gap between the positioning surface of the panel connecting portion 24 and the corresponding surface of the panel 1 flows down along this gap, this gap communicates with the wetting gap a, the liquid in this gap enters the wetting gap a, then flows toward the liquid guiding surface of the air guiding and liquid guiding portion 23 through the wetting gap a, then flows toward the receiving portion 32 through the liquid guiding surface, then flows toward the drip hole 31 through the receiving portion 32, and drips from the drip hole 31.

Referring to fig. 2 and 4, in the exhaust inlet structure of the range hood of the present invention, the liquid receiving and guiding component 3 includes a guiding section 33, the guiding section 33 guides air obliquely upward, and the guiding section 33 is connected to the receiving portion 32; the liquid receiving and air guiding piece 3 is detachably connected with the lower edge of the air suction opening 11. Because the body of the air guiding and liquid guiding part 23 forms a downward included angle with the vertical plane, when the air inlet of the air inlet 11 flows into the air collecting box through the air inlet 11, the body of the air guiding and liquid guiding part 23 can generate a downward pressure on the air inlet of the air inlet 11, so that the air inlet of the air inlet 11 flows obliquely downwards, but the air exhaust fan is positioned in the air collecting box and above the air inlet 11, after the air guiding and liquid guiding part 23 guides the air inlet obliquely downwards, the air inlet flows towards the air guiding section 33 of the liquid receiving air guide component 3 and is guided by the air guiding section 33, and the air inlet finally flows obliquely upwards along the air guiding section 33 and enters the air inlet of the air exhaust fan of the range hood. The air guide section 33 is connected to the receiving section 32, the oil drip hole 31 is located between the receiving section 32 and the air guide section 33, and the liquid droplets dropped from the liquid trap portion 22 of the air guide liquid guide 2 flow along the receiving section 32 after falling into the receiving section 32 and are dropped from the oil drip hole 31. Since the receiving portion 32 of the liquid-receiving air guide 3 is used to receive the liquid droplets dropped from the liquid-collecting portion 22, the liquid-receiving air guide 3 needs to be detached from the lower edge of the panel 1 and cleaned after a long period of use, so that the liquid-receiving air guide 3 is detachably connected to the lower edge of the panel 1, and the liquid-receiving air guide 3 can be cleaned easily. It is understood that the oil dropping hole 31 is located at the lowest position of the liquid-receiving air guide 3, so that the liquid received by the receiving portion 32 can flow into the oil dropping hole 31. In the illustrated embodiment, the receiving portion 32 is an inclined surface, the receiving portion 32 forms an inclined surface inclined downward with a vertical surface, and the oil dripping hole 31 is located at the lowest position of the inclined surface where the receiving portion 32 is located, so that the liquid drops dropping from the liquid collecting portion 22 flow downward along the receiving portion 32 after falling into the receiving portion 32, and then drop through the oil dripping hole 31.

In other embodiments, the receiving portion 32 and the oil drip hole 31 are located in the same plane, so that when the intake air from the air inlet 11 passes through the air inlet, a force flowing into the air collecting box is applied to the liquid drops on the receiving portion 32, and when a certain amount of liquid is accumulated on the receiving portion 32, the liquid drops still flow to the oil drip hole 31 and drip from the oil drip hole 31.

In some embodiments, the receiving portion 32 and the oil dropping hole 31 are located in the same plane, and the distance from the projection of the liquid collecting portion 22 to the liquid collecting wind guide 3 to the wind collecting box back plate is not greater than the distance from the oil dropping hole 31 to the wind collecting box back plate. That is, the projection of the liquid collecting part 22 to the liquid receiving and guiding member 3 is aligned with at least the oil dropping hole 31 or is located on the side of the oil dropping hole 31 close to the air guiding section 33. Thus, the liquid drops dropping from the liquid collecting part 22 to the liquid receiving wind guide 3 at least drop into the oil dropping hole 31 and then drop from the oil dropping hole 31; or the liquid drops dropping from the liquid collecting part 22 drop onto the air guiding section 33, then slide to the oil dropping hole 31 along the air guiding section 33, and drop from the oil dropping hole 31.

Referring to fig. 1 and 2, the two sides of the air suction inlet 11 of the air suction ventilator of the present invention have side decorations 4, the side decorations 4 on the two sides of the air suction inlet 11 have shapes adapted to the left side and the right side of the air suction inlet 11 respectively, and include an appearance surface, and a second air guiding through hole 41 leading to the air suction channel of the air suction ventilator is formed on the appearance surface. Since the left side decoration 4 and the right side decoration 4 are respectively connected to the left side and the right side of the air suction opening 11, the right side decoration 4 can be seen from the right side of the outer side of the panel 1, and the left side decoration 4 can be seen from the left side of the outer side of the panel 1, in order to make the appearance of the range hood beautiful, the surfaces of the left side decoration 4 and the right side decoration 4 which can be seen from the outer side of the panel 1 by a user are both appearance surfaces. Since the air guiding and liquid guiding part 23 is inclined downwards relative to the vertical plane, and the air guiding section 33 of the liquid receiving and air guiding member 3 is inclined upwards relative to the vertical plane, the effective air outlet area of the air suction opening 11 is reduced, the second air guiding through holes 41 are arranged on the appearance surfaces of the left side decoration 4 and the right side decoration 4, and when air passes through the air suction opening 41, the air passes through the second air guiding through holes 41 on the left side decoration 4 and the right side decoration 5 under the action of air pressure and then flows into the air collecting box. Through the second wind-guiding through hole 41 that sets up on the side gadget 4 of both sides, when outside wind pressure is great, can shunt the air inlet, when increasing the intake, reduce the wind pressure, reduce the noise that the air inlet produced.

Referring to fig. 1 and 4, in the suction inlet structure of the range hood of the present invention, the air guiding section 33 is arc-shaped, and the range of the air outlet angle is 130 ° to 175 °; the air inlet of the air suction opening 11 forms four air flows, which are respectively: a main air flow which is an air flow that is pressed down at the beginning formed among the air guiding and liquid guiding part 23, the bearing part 32 and the air guiding section 33 and then is directed obliquely upward; the inlet air passes through the first air guiding through hole 231 of the air guiding and liquid guiding part 23 to form upward air flow; the left air flow formed by the intake air passing through the second air guiding through hole 41 of the left side trim 4 and the right air flow formed by the intake air passing through the second air guiding through hole 41 of the right side trim 4. Because the receiving part 32 is inclined downwards, the air guiding and liquid guiding part 23 is also inclined downwards, when the inlet air passing through the air suction opening 11 passes through the air guiding and liquid guiding part 23 and the receiving part 32, the air guiding and liquid guiding part 23 and the receiving part 32 press the inlet air downwards, the effective air outlet area of the air suction opening 11 is reduced, the air pressure is increased, and under the action of the air pressure, the air flow of a main air inlet is the air flow which is formed along the initial downward pressing among the air guiding and liquid guiding part 23, the receiving part 32 and the air guiding section 33 and is in the inclined upwards direction; a part of the inlet air can pass through the first air guide through hole 231 of the air guide liquid guide part 23 and form upward air flow; a part of the inlet air passes through the second air guiding through hole 41 of the left side decoration piece 4 and forms a left air flow; a part of the intake air passes through the second air guiding through hole 41 of the right side garnish 4 to form a rightward airflow, and the rest of the intake air continues to pass between the air guiding and liquid guiding portion 23 and the receiving portion 32 and is guided by the air guiding section 33, and finally the part of the intake air is guided upward by the air guiding section 33 to form an obliquely upward airflow. The effective air outlet area of the air suction opening 11 is reduced by the air guide liquid guide part 23 and the bearing part 32, the air pressure can be increased, the flow speed of the inlet air flowing out from the air suction opening 11 is improved, but when the external air pressure is large, the first air guide through hole 231 and the second air guide through hole 41 can effectively adjust the inlet air entering the air collecting box from the air suction opening 11, namely, the air exhausted from the air suction opening 11 is effectively adjusted.

Referring to fig. 1, 6 and 7, in the exhaust opening structure of the range hood of the present invention, the side decoration 4 includes a side decoration connecting portion 42 extending from a portion of the panel 1 located at the side of the exhaust opening 11 and an air dispersing portion 43 integrally formed with the side decoration connecting portion 42 and extending toward the air inlet direction of the exhaust opening 11, and an adhesive layer is disposed between the side decoration connecting portion 42 and a corresponding surface of the portion of the panel 1 located at the side of the exhaust opening 11 and forms a sealing connection; the wind dispersing portion 43 has a combining edge 44 which is circular-arc and extends downward, and the combining edge 44 is integrally formed with the wind dispersing portion 43 and the side garnish attachment portion 42 of the side garnish 4. The side decoration 4 is embedded and connected with the part of the panel 1, which is positioned on the side edge of the air suction opening 11, when the side decoration 4 is seen from the inner side of the outer side type air suction opening 11 of the panel 1, in order to ensure that the range hood has good appearance, the inner side of the part of the panel 1, which is positioned on the side edge of the air suction opening 11, is provided with a step matched with the side decoration connecting part 42, the height of the step is matched with the thickness of the side decoration connecting part 42, the upper surface of the step is provided with an adhesive layer, and then the side decoration connecting part 42 and the adjustment part on the panel 1 are bonded and form sealing connection.

Referring to fig. 2, 4, 6 and 7, in the exhaust opening structure of the range hood of the present invention, the left and right sides of the liquid receiving and guiding member 3 are bilaterally symmetric, and the parts of the panel 1 on the left and right sides of the exhaust opening 11 are respectively provided with the side decorations 4 on the corresponding sides; the side decoration 4 is provided with a wind guiding part 46, the wind guiding part 46 is positioned on the upper side of the wind dispersing part 43 and forms an extended wind guiding part, one side of the side decoration 4 close to the liquid-receiving wind guiding part 3 is provided with a supporting edge 45 matched with the side shape of the liquid-receiving wind guiding part 3, and two ends of the liquid-receiving wind guiding part 3 are respectively abutted against the supporting edge 45 of the side decoration 4 on the corresponding side. The upper edge, the lower edge and the left and right sides of the air suction opening 11 positioned on the inner side of the panel 1 are respectively provided with a first decorating part 2, a liquid receiving air guiding part 3 and a side decorating part 4, and form an air inlet channel surrounding the air suction opening 11, when the inlet air of the air suction opening 11 passes through the air inlet channel, the inlet air can be guided by the air guiding and liquid guiding part of the first decorating part 2, the bearing part 32 of the liquid receiving air guiding part 3 and the side decorating part 4 are provided with air guiding parts 46 and enter the air channel, when the inlet air enters the air inlet channel from the air suction opening 11, the inlet air area in the air inlet channel is reduced, the air pressure is increased, the air speed is increased, the inlet air of the air suction opening 11 can rapidly pass through the air inlet channel and enter the air channel of the range hood, when the inlet air flows out from the air inlet channel, because the air guiding parts 46 of the side decorating part 4 form an expanding section, the area of the air outlet of the air inlet channel is increased, the air pressure can be reduced, and the noise generated when the inlet air flows out from the air inlet channel.

Please refer to fig. 8 and fig. 10, the utility model also discloses a range hood, the utility model discloses an oil absorption cigarette includes foretell range hood inlet scoop structure, still includes air collecting box 6 and locates the fan 7 of airing exhaust in the air collecting box 6, is equipped with the bellows air intake on the air collecting box 6, inlet scoop 11 and bellows air intake intercommunication. When the oil smoke is sucked, the exhaust fan 7 is started and forms a negative pressure area at the exhaust opening 11 of the panel 1, the oil smoke generated in the cooking operation of a user flows to the negative pressure area formed at the exhaust opening 11 of the panel 1 and forms inlet air, the inlet air flows into the air collecting box 6 through the exhaust opening 11 and the air inlet of the air collecting box, then enters the air inlet of the exhaust fan 7 and is discharged out of the air collecting box 6 after passing through the fan cavity of the exhaust fan 7. When the air inlet passes through inlet scoop 11, the air inlet of inlet scoop 11 forms four air currents, is respectively: a main tuyere current which is a current that is formed along the initial downward pressure among the wind guiding liquid guiding part 23, the bearing part 32 and the wind guiding section 33 and is directed obliquely upward backward; the inlet air passes through the first air guiding through hole 231 of the air guiding and liquid guiding part 23 to form upward air flow; the left air flow formed by the intake air passing through the second air guiding through hole 41 of the left side trim 4 and the right air flow formed by the intake air passing through the second air guiding through hole 41 of the right side trim 4. Because the bearing part 32 is inclined downwards, the air guiding and liquid guiding part 23 is also inclined downwards, when the inlet air passing through the air suction opening 11 passes through the air guiding and liquid guiding part 23 and the bearing part 32, the air guiding and liquid guiding part 23 and the bearing part 32 press the inlet air downwards, the effective air outlet area of the air suction opening 11 is reduced, the air pressure is increased, under the action of the air pressure, a part of the inlet air passes through the first air guiding through hole 231 of the air guiding and liquid guiding part 23 to form an upward air flow, and a part of the inlet air passes through the second air guiding through hole 41 of the left side decoration 4 to form a leftward air flow; a part of the intake air passes through the second air guiding through hole 41 of the right side garnish 4 to form a rightward airflow, and the rest of the intake air continues to pass between the air guiding and liquid guiding portion 23 and the receiving portion 32 and is guided by the air guiding section 33, and finally the part of the intake air is guided upward by the air guiding section 33 to form an obliquely upward airflow. The effective air-out area of inlet scoop 11 has been reduced to wind guide liquid guide portion 23 and accepting portion 32, can increase the wind pressure, improves the velocity of flow when the inlet air flows out from inlet scoop 11, but when external wind pressure is great, first wind-guiding through-hole 231 and second wind-guiding through-hole 41 can effectively adjust the inlet air that gets into the case of album of wind from inlet scoop 11, also is exactly effective regulation from inlet scoop 11 exhaust wind. When the range hood is used for a long time, certain mixed liquid of oil and water can be gathered at the outer side of the panel 1, and part of the liquid is adhered to the part of the panel 1 above the air suction opening 11 and flows to the air suction opening 11 along the panel 1; another part of the liquid adheres to the part of the panel 1 below the air suction opening 11, flows downwards along the panel 1 and then falls into the oil collecting box along the lower end of the panel 1. When flowing downwards along the panel 1, the liquid adhered to the outer side of the panel 1 gathers at the butt joint end 12 of the panel 1, then enters the infiltration gap a from the butt joint end 12 and gathers in the infiltration gap a; when the liquid in the infiltration gap a is fully gathered, the liquid flows to the connection end 21, then flows to the liquid guide surface of the air guide and liquid guide part 23 through the connection end 21, the liquid continuously flows along the liquid guide surface, and finally is gathered in the liquid gathering part 22, when the liquid drops at the liquid gathering part 22 are large enough, the liquid drops drop downwards from the liquid gathering part 22, when the range hood is started, the air inlet at the air suction port 11 is blown to the inside of the air gathering box 6, the liquid drops are blown by ventilation air flow formed by the air inlet, and float down to the inside of the air gathering box 6, and finally fall onto the bearing part 32 of the air receiving and guiding part 3, and when the liquid drops on the bearing part 32 are gathered to a sufficient amount, the liquid drops flow to the oil dropping hole 31 along the bearing part 32, and drop through the oil dropping hole 31; because a part of the inlet air passing through the air suction opening 11 flows to the part of the air collecting box 6 on the upper surface of the air guiding and liquid guiding part 23 through the first air guiding through hole 231, the liquid in the part of the inlet air is collected on the upper surface of the air guiding and liquid guiding part 23 and the inner side surface of the panel connecting part 24, the liquid collected on the upper surface of the air guiding and liquid guiding part 23 flows to the liquid collecting part 22 along the upper surface of the air guiding and liquid guiding part 23, then drops into the bearing part 32 of the liquid receiving and air guiding member 3 from the liquid collecting part 22, then flows to the oil dropping hole 31 from the bearing part 32, and drops from the oil dropping hole 31; the liquid droplets collected on the inner surface of the panel connecting portion 24 flow down along the inner surface of the panel connecting portion 24 to the upper surface of the air guiding and liquid guiding portion 23, then flow to the liquid collecting portion 22 together with the liquid on the upper surface of the air guiding and liquid guiding portion 23, finally drop into the receiving portion 32 of the liquid receiving and air guiding member 3 from the liquid collecting portion 22, then flow to the oil dropping hole 31 from the receiving portion 32, and drop from the oil dropping hole 31.

Referring to fig. 1, the exhaust inlet 11 of the range hood of the present invention is a long strip, and includes an upper edge, a lower edge, a left side corner and a right side corner, wherein the upper edge and the lower edge are parallel and horizontally disposed. The upper edge and the lower edge are positioned on the inner side of the panel 1, can be connected with the air guide and liquid guide piece 2 and the liquid receiving and air guide piece 3, and cannot influence the appearance of the panel 1, after the panel 1 is connected with the air collecting box 6, and after the air guide and liquid guide piece 2 is connected with the upper edge and the liquid receiving and air guide piece 3 is connected with the lower edge, the air guide and liquid guide piece 2 and the liquid receiving and air guide piece 3 are positioned in the air collecting box 6. After liquid drops on the outer side of the panel 1 are collected to the air suction opening 11 along the part of the panel 1 above the air suction opening 11, the liquid drops flow to the connecting end 21, are received by the connecting end 21 and flow from the panel 1, then flow to the liquid collecting part 22 along the liquid guide surface of the air guide and liquid guide part 23, drop to the receiving part 32 of the liquid guide 3 from the liquid collecting part 22, flow to the oil dropping hole 31 along the receiving part 32, and finally drop to the oil dropping hole 31. When the range hood works, the exhaust fan 7 meets the air inlet 11 to form a negative pressure area, the oil smoke generated in the cooking process of a user can flow to the negative pressure area, the air inlet 11 is set to be strip-shaped and is arranged along the length direction of the panel 1, the air suction range of the air inlet 11 can be large enough, the air inlet 11 is horizontally arranged, when the oil smoke enters through the air inlet 11, the oil smoke enters the oil smoke stably in the length direction of the air inlet, and in addition, the panel 1 is attractive in appearance. The upper edge and the lower edge are arranged along the length direction of the air suction opening 11, when the air suction opening 11 is in a parallel long strip shape, the upper edge is arranged along the length direction of the upper end of the air suction opening, the lower edge is arranged along the length direction of the air suction opening, a left side angle and a right side angle are formed on the left side and the right side of the air suction opening, the left side angle and the right side angle are respectively used for being connected with the left side decoration 4 and the right side decoration 4, the left side decoration 4 and the right side decoration 4 are provided with appearance surfaces, so that the left side angle and the right side angle can be circular arc-shaped or square-shaped, the left side angle and the right side angle are matched with the left side decoration 4 and the right side decoration 4, the left side decoration 4 and the right side decoration 4 are respectively connected behind the left side angle and the right side angle, and the appearance surfaces of the left side decoration 4 and the right side decoration 4 are positioned on the same plane. The upper edge and the lower edge of the air suction opening are also provided with appearance surfaces, in order to ensure that one side of the panel 1 of the range hood facing a user is attractive, the processing precision requirement of the upper edge and the lower edge is higher, the upper edge and the lower edge need to be parallel and horizontally arranged, and therefore the air suction opening 11 seen by the user is finally a strip-shaped hole horizontally arranged on the panel 1.

Referring to fig. 3 to 5, the panel 1 of the range hood of the present invention has an inclined section 13, the inclined section 13 and the vertical plane form a first downward inclination angle γ, and the range of the first inclination angle is: gamma is more than or equal to 20 degrees and less than or equal to 30 degrees; the panel 1 has a butt end 12, and the panel 1 at the butt end 12 forms a second downward inclination angle θ with the vertical plane, where the second inclination angle is in the range: theta is more than 10 degrees and less than or equal to 75 degrees, and the inclination angle of the panel 1 at the butt joint end 12 is the same as that of the oil guide surface of the air guide and liquid guide piece 2. The upper edge of a self-suction opening 11 of the panel 1 is turned inwards to form a joint part 14 and an oil blocking structure 15, the joint part 14 is jointed with the part of the panel 1 positioned on the upper edge of the suction opening 11 and is bent towards the inner side of the panel 1, and a butt joint end 12 is formed at the joint part of the joint part 14 and the oil blocking structure 15; the oil blocking structure 15 is formed by bending one end of the connecting part 14 far away from the panel 1 upwards, one surface of the connecting part 14 far away from the panel 1 is a corresponding surface which is arranged opposite to a positioning surface of the panel 1 and the panel connecting part 24, and the inclination angle of the oil blocking structure 15 relative to a vertical surface is the same as that of the panel connecting part 24 relative to a vertical surface, so that when the air guiding and liquid guiding piece 2 is connected with the panel 1, the positioning surface of the panel connecting part 24 of the air guiding and liquid guiding piece 2 is connected with the corresponding surface of the oil blocking structure 15, and the downward included angle alpha formed by the air guiding and liquid guiding part 23 relative to the vertical surface is the same as the downward second inclination angle theta formed by the connecting part 14 and the vertical surface, so that when liquid gathered outside the panel 1 flows to the air suction opening 11 along the panel 1, the liquid flows to the connecting part 14 and flows to the butt end 12 along the lower surface of the connecting part 14, then enters the infiltration gap a from the butt end 12 and gathers in the infiltration gap a; when the liquid in the infiltration gap a is fully gathered, the liquid flows to the connection end 21, then flows to the liquid guiding surface of the air guiding and liquid guiding part 23 from the connection end 21, the liquid continuously flows along the liquid guiding surface, and finally is gathered in the liquid gathering part 22, when the liquid drops at the liquid gathering part 22 are large enough, the liquid drops drop downwards from the liquid gathering part 22, when the range hood is started, the air inlet at the air suction port 11 is blown to the inside of the air gathering box 6, the liquid drops are blown by the ventilation air flow formed by the air inlet, and float down to the air gathering box 6, and finally fall onto the bearing part 32 of the air guiding and liquid receiving part 3, and when the liquid drops on the bearing part 32 are gathered to a sufficient amount, the liquid drops flow to the oil dropping hole 31 along the bearing part 32, and drop through the oil dropping hole 31. Because the inclined section of the panel 1 and the vertical plane form a first downward inclination angle gamma which is smaller than a second downward inclination angle theta formed by the linking part 14 and the vertical plane, the linking part 14 extends towards the inner side of the panel 1 and forms a wall surface of the air inlet channel, the air inlet channel forms a necking shape which gradually shrinks from the outer side of the panel 1 to the inner side of the panel 1, when oil smoke enters the air inlet channel through the air suction opening 11, the sectional area of the air inlet channel gradually becomes smaller, the air pressure can be increased, and the air inlet flow rate is improved.

Referring to fig. 10, in the range hood of the present invention, the wind collecting box 6 is divided into a wind box section 61 and a fan accommodating section 62, the wind box section 61 is located below the fan accommodating section 62, the wind inlet of the wind box is located in the wind box section 61, the exhaust fan 7 is obliquely located in the fan accommodating section 62, and the wind inlet of the exhaust fan 7 is obliquely located and faces the rear sidewall of the fan accommodating section 62; the air flow of the air suction opening 11 is guided obliquely upwards to the rear side of the fan accommodating section 62 through the air guiding section 33 of the liquid receiving air guide member 3 and enters the air inlet of the exhaust fan 7. Because the receiving part 32 is inclined downwards, the air guiding and liquid guiding part 23 is also inclined downwards, when the inlet air passing through the air suction opening 11 passes through the air guiding and liquid guiding part 23 and the receiving part 32, the air guiding and liquid guiding part 23 and the receiving part 32 press the inlet air downwards, the effective air outlet area of the air suction opening 11 is reduced, the air pressure is increased, under the action of the air pressure, the air flow of the main air inlet presses downwards along the initial pressure formed among the air guiding and liquid guiding part 23, the receiving part 32 and the air guiding section 33, then blows to the air flow in the inclined upward direction and to the back plate of the air collecting box 6, when the air flow is blown in the inclined upward direction to the back plate of the air collecting box 6, the air flow starts to flow to the negative pressure area formed by the air inlet of the air exhaust fan 7 after entering the negative pressure area formed by the air inlet of the air exhaust fan 7, and is sucked into the air cavity of the air exhaust fan 7 and then is discharged out of the air collecting box 6. The utility model discloses a range hood, because connect liquid air ducting 3 to set up wind-guiding section 33, can make the air inlet of inlet scoop 11 form the air current that upwards inclines and flow towards the backplate of air-collecting box 6, range hood during operation, the oil smoke is concentrated and is flowed to the rear side of air-collecting box 6, the liquid major part in the oil smoke can adsorb on the backplate of air-collecting box 6, then flow downwards along the backplate to the bottom plate of air-collecting box 6, then fall down by the oil leak hole on the bottom plate of air-collecting box 6, finally fall into the oil collecting box of range hood; and the air exhaust fan 7 is arranged obliquely, the air inlet of the air exhaust fan 7 inclines downwards and faces the back plate of the air collecting box 6, so that an air inlet space with a small upper part and a large lower part is formed by the inclined surface of the air exhaust fan 7 and the back plate of the air collecting box 6, after the air flow guided out by the air guide section 33 in the inclined upper part enters the air inlet space, the air pressure is increased, the air flow can be quickly sucked away by the air exhaust fan 7, and the noise generated by the air flow can be effectively reduced because the volume of the air inlet space is smaller as the air flow goes upwards.

Referring to fig. 8 and 10, in the range hood of the present invention, the bellows section 61 and the fan housing section 62 share a common back plate plane, and the angle range of the included angle between the suction surface of the exhaust fan 7 and the back plate of the air collecting bellows 6 is 16 ° to 45 °, so as to form an air inlet channel with a large bottom and a small top. The utility model discloses a range hood, the face slope of induced drafting of air exhaust fan 7 sets up and towards the backplate of air collecting box 6, air exhaust fan 7 forms the negative pressure zone at fan holding section 62, the oil smoke of culinary art environment enters air box section 61 back and flows and is discharged by air exhaust fan 7 to the negative pressure zone that air exhaust fan 7 formed, the face of induced drafting of air exhaust fan 7 is not towards air collecting box 6's side, and towards air collecting box 6's backplate, the wind pressure relatively stable that forms in the length range of the inlet scoop of range hood, the oil smoke in the culinary art environment can not be to air collecting box 6's side slope, range hood's inlet air inlet is stable, air exhaust fan 7 is relatively better to the suction effect of oil smoke. In addition, when range hood starts, the oil smoke in the culinary art environment gets into bellows section 61 of bellows 6, then flow to fan holding section 62 along bellows section 61 of bellows 6, because the slope of fan 7 of airing exhaust sets up, the face of induced drafting of fan 7 of airing exhaust slopes downwards and towards the backplate of bellows 6, the face of induced drafting of fan 7 of airing exhaust forms an air inlet channel big end down with the backplate of bellows 6 like this, by bellows section 61 behind the fan holding section 62 mobile air current entering air inlet channel, the wind pressure increase, can be quick be inhaled away by fan 7 of airing exhaust, and because the volume of air inlet space is more little, the noise that can effectual reduction air current production.

Referring to fig. 10, in the range hood of the present invention, the cross-sectional area of the joint of the bellows section 61 and the fan housing section 62 changes suddenly, and the ratio of the air duct area of the bellows section 61 to the fan housing section 62 at the changed sudden position is 2.5-2. After the air inlet of inlet scoop 11 blows to the backplate of fan holding section 62, begin to flow to bellows section 61 under the effect of the fan 7 of airing exhaust, when flowing to the linking department of bellows section 61 and fan holding section 62, because the cross sectional area of linking department takes place the sudden change, and the cross sectional area of fan holding section 62 diminishes, the wind pressure grow, the velocity of flow of wind becomes fast, can make the quick fan 7 of airing exhaust of being taken away of the air current that gets into in fan holding section 62. In addition, because the air intake channel with a large lower part and a small upper part is formed between the air suction surface of the air exhaust fan 7 and the back plate of the air collecting box 6, when the air flow entering the fan accommodating section 62 enters the air intake channel, the air speed is faster and faster, and the noise generated by the air intake is silenced by the structure of the air intake channel, so that the noise of the range hood is reduced. The main function of fan holding section 62 is that the holding is air exhaust fan 7, its width satisfies air exhaust fan 7 can the slope set up in it can, and the preceding curb plate of bellows section 61 is connected with panel 1, inlet scoop 11 sets up along the width of panel 1, so the width of the preceding curb plate of bellows section 61 will with the width adaptation of panel 1, and be not less than the width of culinary art operation face, so make the width of bellows section 61 be 2 times to 2.5 quilt of the width of fan holding section 62 usually, both can make fan holding section 62 have sufficient space holding air exhaust fan 7 like this, still make the preceding curb plate of bellows section 61 have the width adaptation of sufficient width and culinary art operation face simultaneously.

Referring to fig. 10, in the range hood of the present invention, the lower end of the volute of the exhaust fan 7 is provided with a tangent plane, an included angle between the tangent plane and a plane opposite to the air suction plane of the exhaust fan 7 is the same as an included angle between the air suction plane of the exhaust fan 7 and the back plate of the air collecting box 6, and when the exhaust fan 7 is disposed in the fan accommodating section 62, the tangent plane is attached to and connected to the front side plate of the fan accommodating section 62; an oil discharge hole 71 is formed in the bottom of the volute of the exhaust fan 7, and the downward projection of the oil discharge hole 71 falls on the front side plate of the air box section 61 and is located above the air inlet of the air box. Because the exhaust fan 7 is obliquely arranged in the fan accommodating section 62, the air outlet of the exhaust fan 7 is connected with the upper part of the fan accommodating section 62 through a connecting part, and the lower end of the exhaust fan 7 needs to be provided with a surface connected with the front side plate of the fan accommodating section 62, so that the exhaust fan 7 can be firmly installed in the air collecting box 6; by arranging the tangent plane at the lower end of the volute of the exhaust fan 7, when the fan is obliquely arranged in the fan accommodating section 62, the tangent plane is just aligned with and attached to the front side plate of the fan accommodating section 62, and the tangent plane and the front side plate of the fan accommodating section 62 can be firmly connected through a connecting piece, so that the exhaust fan 6 is stably installed in the fan accommodating section 62. Because the air suction surface of the exhaust fan 7 is arranged obliquely, in the long-term working process of the exhaust fan 7, the air suction surface of the exhaust fan 7 can generate liquid mixed with oil, water and smoke, and liquid can also be generated in the air cavity of the exhaust fan 7, and the liquid can flow downwards along the wall surface of the volute of the exhaust fan 7, then is discharged from the oil discharge hole 71 at the bottom of the volute and drops downwards; the downward projection of the oil discharge hole 71 is located on the front side plate of the air box section 61 and is located at the part above the air inlet of the air box, so that liquid dropping from the oil discharge hole 71 at the bottom of the volute can drop on the front side plate of the air box section 61 and flow downwards along the front side plate of the air box section 61, and the liquid dropping from the oil discharge hole 71 at the bottom of the volute can be prevented from dropping to the outer side of the panel 1 through the air suction port 11.

Please refer to fig. 8 and fig. 9, the utility model discloses a range hood still includes casing 9, panel 1 is connected in casing 9's front side and is connected with the side shield of casing 9 both sides, the roof of casing 9 just stretches out in casing 9 is located to collection bellows 6, be equipped with first connecting piece 91 on the internal face of casing 9's backplate, panel 1's medial surface is connected with second connecting piece 92, first connecting piece 91 and second connecting piece 92 are connected with bellows bottom plate 63 from the front end and the rear end of collection bellows bottom plate 63 of bellows 6 respectively and are supported bellows bottom plate 63. The utility model discloses a range hood, when casing 9 is installed to air collecting box 6 in, air collecting box 6 is connected through first connecting piece 91 with casing 9, and the rear end that first connecting piece 91 was followed upwards supports air collecting box 6, air collecting box 6 passes through second connecting piece 92 with panel 1 and is connected, and the front end that second connecting piece 92 was followed upwards supports air collecting box 6, make air collecting box 6 atress even, the installation is stable in casing 9, when the oil smoke of culinary art environment got into air collecting box 6 in, the vibration ratio that the air inlet produced is smaller, and then the noise ratio of making range hood during operation is smaller, can improve user experience.

Please refer to fig. 8 and 10, the cross-section of the range hood of the present invention is U-shaped, including two vertical connecting surfaces 911 and a horizontal connecting surface 912 connecting the two vertical connecting surfaces 911, the vertical connecting surface 911 close to the back baffle of the housing 9 is connected to the back baffle of the housing 9, and the horizontal connecting surface 912 is connected to the bellows bottom plate 63 of the bellows 6. The first connecting member 91 is a connecting member independent of the housing 9, and is stronger and easily connected to the back plate of the housing 9, and when the bellows 6 is installed in the housing 9, the first connecting member 91, which has been installed on the back plate of the housing 9, can also play a role in positioning the bellows 6, and after the bellows bottom plate 63 of the bellows 6 is in contact with the horizontal connecting surface 912 of the first connecting member 91, the bellows 6 is installed in position in the housing 9, and then the horizontal connecting surface 92 of the first connecting member 91 is connected to the bellows bottom plate 63 of the bellows 6. In addition, the first connecting member 91 has a U-shaped cross section, and thus has a greater strength and a greater bearing force, and the bellows base plate 63 is stably stressed while supporting the bellows base plate 63 upward.

Referring to fig. 8 and 10, in the range hood of the present invention, the bellows bottom plate 63 includes a horizontal section and an inclined section, the inclined section is inclined upward from the end connected with the horizontal section to the end far away from the horizontal section, and the horizontal connecting surface 912 is connected with the horizontal section of the bellows bottom plate 63; the horizontal section is provided with an oil leakage hole 631, and the distance from the oil leakage hole 631 to the back plate of the air collecting box 6 is matched with the width of the horizontal connecting surface 912. In the process of long-term use of the range hood, a great amount of liquid mixed with oil, water and smoke is generated in the cavity of the air collecting box 6, and the liquid flows downwards along the front side plate 64 of the air box section 61, the left and right side plates of the air box and the back plate of the air collecting box 6 and is collected on the bottom plate 63 of the air box section 61; the bellows base plate 63 of the bellows section 61 is provided with oil leakage holes 631, and liquid collected on the bellows base plate 63 drips along the oil leakage holes 631. In order to allow the liquid collected on the bellows base plate 63 to be quickly discharged from the oil leak holes 631, it is common to arrange the bellows base plate 63 at an inclination such that the oil leak holes 631 are disposed at the lowermost portion of the bellows base plate 63, so that the liquid collected on the bellows base plate 63 moves along the bellows base plate 63, flows from the side where the bellows base plate 63 is located at a high position to the side where the bellows base plate 63 is located at a low position, and finally drops from the oil leak holes 631. When the bellows base plate 63 is connected to the first connecting member 91, the horizontal connecting surface 912 of the first connecting member 91 is connected to the bellows base plate 63, so that the bellows base plate 63 has at least one horizontal section adapted to the width of the horizontal connecting surface 912, which makes it possible to firmly connect the bellows base plate 63 to the horizontal connecting surface 912 of the first connecting member 91, and the bellows base plate 63 is inclined with respect to a portion thereof, which makes it possible to make the liquid collected on the bellows base plate 63 slide down along the inclined section and drip from the oil leakage hole 631. The setting of oil leak 631 is on bellows bottom plate 63's horizontal segment to make the distance of oil leak 631 to the backplate of bellows 6 and the width adaptation of horizontally connect face 912, like this when processing oil leak 631 on bellows bottom plate 63, the decurrent turn-ups of oil leak 631 just plays the positioning action to first connecting piece 91, when the horizontally connect face 912 of first connecting piece 91 is arranged in to bellows bottom plate 63, the vertical connection face and the decurrent turn-ups butt of oil leak 631 that the backplate of bellows 6 was kept away from to first connecting piece 91.

The utility model discloses a range hood, casing 9's side shield is equipped with the hem parallel with the backplate of collection bellows 6, and the vertical both sides of connecting face 911 of being connected with casing 9's backplate correspond the inboard butt and the connection of the hem of side with casing 9's side shield respectively. The first connecting member 91 connects the rear baffle of the housing 9, the left and right side baffles of the housing 9, and the bellows bottom plate 63 of the bellows 6, so that the bellows 6 is fixed more firmly, and the connection of the bellows 6 in the housing 9 is loosened by avoiding the vibration caused by the intake air entering the bellows 6.

Referring to fig. 8, 9 and 11, in the range hood of the present invention, the second connecting member 92 includes a first supporting section 921, a second supporting section 922 and a connecting section 923, and the first supporting section 921, the second supporting section 922 and the connecting section 923 are sequentially connected; the first support section 921 is fitted to the bellows front side plate 64 of the bellows section 61 and supports the bellows front side plate 64; the second support section 922 is adapted to the bellows base plate 63 and supports the bellows base plate 63; the bottom plate connecting portion 632 is arranged on the bellows bottom plate 63, and the bottom plate connecting portion 632 is connected with the connecting section 923. When the air collecting box 6 is arranged in the housing 9, the rear end of the air collecting box bottom plate 63 is supported by the horizontal connecting surface 912 of the first connecting piece 91, the front end of the air collecting box bottom plate 63 is supported by the second supporting section 922 of the second connecting piece 92, meanwhile, the first supporting section 921 of the second connecting piece 92 supports and extrudes the air collecting box front side plate 64, so that the air collecting box 6 is stably placed on the first connecting piece 91 and the second connecting piece 92, and finally, the bottom plate connecting part 632 of the air collecting box bottom plate 63 is connected with the connecting section 923 of the second connecting piece 92, so that the air collecting box bottom plate 63 is fixedly connected with the second connecting piece 92, the air collecting box 6 can be firmly connected with the second connecting piece 92, and the bottom plate connecting part 632 and the connecting section 923 are located at the bottom of the air collecting box bottom plate 63, and the noise generated by air inlet can be reduced.

Referring to fig. 8, the range hood of the present invention, the front side plate 64 of the bellows and the bottom plate 63 of the bellows are integrally connected, and the same sheet metal component is stamped and formed, so that the consistency is good, the first support section 921 and the second support section 922 of the second connecting member 92 are respectively connected to the front side plate 64 of the bellows and the bottom plate of the bellows, and the vibration can be reduced after the connection, thereby reducing the noise generated during the operation of the range hood.

Please refer to fig. 8, fig. 9 and fig. 11, the utility model discloses a range hood, panel 1's medial surface is connected with third connecting piece 93, third connecting piece 93 includes first connecting portion 931 and second connecting portion 932, first connecting portion 931 extends and is connected with panel 1 along panel 1's width direction, second connecting portion 932 is connected in the upper end of first connecting portion 931 and towards bellows front side board 64, bellows front side board 64 is equipped with dodges the position 641, dodge the position 641 and form towards the inside arch of bellows section 61, second connecting portion 932 stretch into dodge the position 641 and with dodge the upper surface connection of position 641. When the third connecting member 93 is connected to the air box front side plate 64 of the air collecting box 6, the second connecting portion 932 extends into the avoiding position 641 and is connected to the upper surface of the avoiding position 641, and the second connecting portion 932 supports the air collecting box 6 upward, thereby further reinforcing the connection relationship between the air collecting box 6 and the panel. The connection between the third connecting member 93 and the front bellows plate 64 of the bellows section 61 is located in the avoiding position 641, so that the connection position does not appear in the bellows section 61, and the direction of the inlet air in the bellows section 61 is not affected; further, since the escape position 641 escapes from the second connecting portion 932, the holding distance between the bellows front side plate 64 and the inner side of the panel 1 can be made constant.

Referring to fig. 11, the range hood of the present invention has the second connecting member 92 and the third connecting member 93 integrally formed, and the first supporting section 921 of the second connecting member 92 and the first connecting portion 931 of the third connecting member 93 are integrally connected to each other. That is to say, the first support section 921 of second connecting piece 92 and the first connecting portion 931 of third connecting piece 93 are on a panel body, the hole of the bellows air intake on the preceding curb plate 64 of bellows that dodges bellows section 61 has been seted up on the panel body, the porose upper edge of second connecting portion 932 turns over to form, the second support section 922 and the connecting portion 923 of second connecting piece 92 are formed by the lower edge bending of panel, after being connected whole panel and panel 1's inboard like this, panel is just fixed in casing 9, when bellows 6 arranges the casing in, second connecting portion 932 stretches into and dodges position 641, then can be directly be connected bottom plate connecting portion 632 and the connecting portion 923 of second connecting piece 92 of bellows 6, with second connecting portion 932 and dodge the upper surface connection of position 641, easy to assemble.

Referring to fig. 12, the range hood of the present invention has an air duct via hole 95 on the top plate of the housing 9, the air collecting box 6 extends out of the top plate of the housing 9 from the air duct via hole 95, a fourth connecting member 96 extends upward from the edge of the air duct via hole 95, and the fourth connecting member 96 connects the front side plate 64 of the air collecting box 6 and the left and right side plates of the air collecting box. The bellows bottom plate 63 of the bellows collection 6 is upwards supported by the first connecting piece 91 and the second connecting piece 92, the side plate is upwards supported by the third connecting piece 93 before the bellows of the bellows collection 6, simultaneously the side plate has about the bellows 64 and the bellows of the bellows collection 6 to be connected with the roof of casing 9 through the fourth connecting piece 96, can make the connection of the bellows collection 6 in the casing 9 firmer, when the range hood starts, the bellows collection 6 is difficult to vibrate, can the noise reduction.

Referring to fig. 9 to 12, the range hood of the present invention further includes a bellows sealing member 94, the lower portion of the front side plate 64 of the bellows is provided with a strip-shaped bellows inlet, and the bellows sealing member 94 is disposed between the front side plate 64 of the bellows and the panel 1 and surrounds the bellows inlet. The bellows seal 94 is pressed between the bellows front side plate 64 and the panel 1 after the panel 1 is connected to the left and right side fences of the housing 9, and the bellows seal 94 can be further pressed when the third connecting member 93 is connected to the bellows front side plate 64; the bellows seal 94 may function to reduce vibration and noise when cooking fumes enter the air collection bellows 6 through the bellows inlet. The bellows seal 94 is made of a material capable of elastic deformation, such as sponge or rubber, and is pressed and deformed when the panel 1 is connected to the front side plate 64 of the bellows.

Please refer to fig. 8, fig. 9 and fig. 11, the range hood of the present invention has the oil baffle 8 formed on the inner wall of the front side plate 64 of the bellows section 61, the oil baffle 8 includes the straight oil baffle 81 arranged along the air suction opening 11 and the vertical oil baffle 82 connected to the straight oil baffle 81 and disposed on both sides of the straight oil baffle 81, and the inner wall of the air duct between the vertical oil baffle 82 and the side wall of the air duct of the bellows 6 forms the oil flow channel. In the long-term use process, a large amount of liquid is generated on the inner wall of the front side plate 64 of the air box section 61, and the liquid flows downwards along the inner wall surface of the front side plate 64 of the air box section 61, when the liquid flows to the straight section 81 of the oil baffle plate 8 above the air suction opening 11, the liquid is blocked by the straight section 81 of the oil baffle plate above the air suction opening and is gathered at the straight section 81 of the oil baffle plate above the air suction opening 11, when a certain amount of liquid is gathered, the liquid flows to the vertical sections 82 of the oil baffle plate on two sides along the straight section 81 of the oil baffle plate above the air suction opening 11 and enters the inner wall surface of the air duct between the vertical section 82 of the oil baffle plate and the side wall surface of the air duct, the part of the inner wall surface is located between the vertical section 82 of the oil baffle plate and the side wall surface of the air duct and forms an oil flow passage, and the liquid gathered at the straight section 81 of the oil baffle plate above the air suction opening flows to two sides, and flows to the part of the inner wall surface of the air duct below the air suction opening 11. The liquid that can avoid the part gathering of the internal wall face of bellows front side board 64 to be located inlet scoop 11 top drips the outside of panel 1 from inlet scoop 11 when flowing downwards to drip on the top of a kitchen range or drip in the culinary art edible material, perhaps drip on user's the hand, can improve user experience. In addition, in the process of long-term operation of the range hood, the lower surface of the oil baffle straight section 81 above the air suction opening, the upper surface of the oil baffle structure 15 and the part between the oil baffle straight section 81 and the oil baffle structure 15 can also generate liquid, and the liquid can be gathered towards the oil baffle structure 15, then flows towards the two sides of the oil baffle structure 15 along the oil baffle structure 15, and forms an oil guide channel from the free end of the oil baffle structure 15 to flow downwards.

Referring to fig. 8 to 10 to 12, in the range hood of the present invention, an oil guiding channel is formed between the air diffusing portion 43 of the side decoration 4 and the vertical section 82 of the oil baffle. In the process of long-term operation of the range hood, when the liquid generated by the lower surface of the straight section 81 of the oil baffle plate, the upper surface of the oil baffle structure 15 and the part between the straight section 81 of the oil baffle plate and the oil baffle structure 15 above the air suction opening flows to the two sides of the oil baffle structure 15, the liquid flows downwards from the air dispersing part 43 and the vertical section 82 of the oil baffle plate, so that the phenomenon that the liquid flows downwards from the two sides of the air suction opening 11 into a whole body under the two sides of the oil baffle structure 15 can be avoided. The side gadget connecting portion 42 is located in the oil guiding channel, when the liquid dropping from both sides of the oil baffle structure 15 flows along the side gadget connecting portion 42, the liquid is blocked by the air dispersing portion 43, flows downwards from the oil guiding channel between the air dispersing portion 43 and the straight section 81 of the oil baffle wall, and is guided to the inner wall surface of the ventilation channel below the air suction opening 11, so that the lower surface of the straight section 81 of the oil baffle wall above the air suction opening, the upper surface of the oil baffle structure 15, and the part between the straight section 81 of the oil baffle wall and the oil baffle structure 15 are prevented from generating liquid which enters the air suction opening 11 and flows out of the panel 1.

Referring to fig. 10 and 11, in the range hood of the present invention, an oil drainage gap or an oil drainage hole is formed in the straight section 81 of the oil baffle wall plate located below the air suction opening 11. Because the oil baffle wall 8 surrounds the air suction opening 11, the liquid generated on the lower surface of the straight section 81 of the oil baffle wall above the air suction opening, on the upper surface of the oil baffle structure 15 and between the straight section 81 of the oil baffle wall and the oil baffle structure 15 can be gathered on the oil baffle structure 15, then flows along the oil baffle structure 15 to the two sides of the oil baffle structure 15, and flows downwards along the oil guide channel formed between the air dispersing part 43 and the vertical section 82 of the oil baffle wall, the liquid flowing downwards can be gathered on the upper surface of the straight section 81 of the oil baffle wall below the air suction opening 11, and the liquid on the inner wall surface of the air channel between the lower edge of the air suction opening 11 and the straight section 81 of the oil baffle wall below the air suction opening 11 can be gathered on the upper surface of the straight section 81 of the oil baffle wall below the air suction opening 11, when a certain amount of liquid is gathered on the upper surface of the straight oil baffle 81 positioned below the air suction opening 11, the liquid can directly drop downwards onto the inner wall of the air duct from the straight oil baffle 81 positioned below the air suction opening 11, but in order to accelerate the liquid gathered on the upper surface of the straight oil baffle 81 positioned below the air suction opening 11, an oil drainage gap or an oil drainage hole is arranged on the straight oil baffle 81 positioned below the air suction opening 11, the liquid gathered on the liquid can directly drop downwards onto the inner wall surface of the air duct positioned below the oil baffle 8 through the oil drainage gap or the oil drainage hole, and then the liquid flows downwards along the inner wall surface of the air duct positioned below the oil baffle 8.

Please refer to fig. 10 and 13, the range hood of the present invention further includes a fan oil baffle plate 5, the fan oil baffle plate 5 is disposed between the air exhaust fan 7 and the air suction opening 11, the fan oil baffle plate 5 forms a front side high, and a rear side low inclination angle, the fan oil baffle plate 5 is disposed at a position corresponding to an air inlet downward projection region of the air exhaust fan 7, an oil baffle air guiding portion 51 is disposed at one side of a back plate close to the air collecting box 6, and the oil baffle air guiding portion 52 is an elongated oval hole disposed at a plurality of intervals on the fan oil baffle plate 5 disposed in an inclined manner. Because the exhaust fan 7 is obliquely arranged, in the long-term use process, liquid collected by the air inlet of the exhaust fan 7 can drop downwards onto the bottom plate of the air collecting box 6, and because the exhaust fan 7 is away from the bottom plate of the air collecting box 6 by a certain distance, when waste liquid drops, the dropping sound of ticks can be generated, so that the user experience is influenced; therefore, the fan oil baffle plate 5 is arranged between the exhaust fan 7 and the exhaust inlet 11, and the fan oil baffle plate 5 forms an inclination angle with a high front side and a low rear side, that is, the height of one end of the fan oil baffle plate 5 connected with the front side plate of the air collecting box 6 is higher than that of one end of the fan oil baffle plate connected with the back plate of the air collecting box 6; and the oil receiving part 51 is arranged in the area of the downward projection of the fan oil baffle plate 5 at the air inlet of the exhaust fan 7, so that waste oil dropping from the air inlet of the exhaust fan 7 can be ensured to be received by the oil receiving part 51 of the fan oil baffle plate 5, liquid drops dropping from the air inlet of the exhaust fan 7 can drop to the oil receiving part 51 of the fan oil baffle plate 5, then flow to the lower end of the oil receiving part 51 along the higher end of the oil receiving part 51, finally flow downward through the back plate of the air collecting box 6 and drop to the bottom plate of the air collecting box 6. The fan oil baffle 5 is arranged between the front side plate and the back plate of the wind collecting box 6, when oil smoke passes through the air suction opening 11 and enters the wind box section 61 of the wind collecting box 6, when the oil smoke flows to the fan accommodating section 62 under the action of the exhaust fan 7 and passes through the fan oil baffle 5, the oil smoke can be prevented from being blocked by the fan oil baffle 5 by arranging the oil baffle air guiding part 52 on the fan oil baffle 5, and the oil baffle air guiding part 52 is arranged on one side of the fan oil baffle 5 close to the back plate of the wind collecting box 6, so that the oil smoke passing through the oil baffle air guiding part 52 inclines towards the back plate of the wind collecting box 6 and enters the wind collecting space between the inclined plane of the exhaust fan 7 and the back plate of the wind collecting box 6.

Referring to fig. 13, in the range hood of the present invention, an air guiding strip 53 is formed between two adjacent oil baffle air guiding portions 52 on the fan oil baffle 5, and the air guiding strip 53 includes a base surface 531 and an air guiding section 532 which is integrally formed on two sides of the base surface 531 and bent at an upward fillet; the fan oil baffle plate 5 is connected with one side of the back plate of the air collecting box 6, a first oil leakage hole 54 is formed in the position close to the back plate of the air collecting box 6, and the first oil leakage hole 54 is used for enabling oil to flow down along the back plate of the air collecting box 6; the base 531 on which the air guide bar 53 is obliquely disposed connects the oil receiving portion 51 and the first oil leakage hole 54. The air guide direction sections 532 of the two air guide strips 53 at two sides of the oil baffle air guide part 52 surround the long oval hole forming the oil baffle air guide part 52, so that waste oil flowing down from the oil receiving part 51 can be prevented from dripping from the oil baffle air guide part 52, liquid flowing down from the oil receiving part 51 can only flow to one end, close to the back plate of the air collecting box 6, of the fan oil baffle 5 along the base surface 531 of the air guide strips 53 and is collected at the position, the liquid collected at the position is dripped from the first oil leakage hole 54 arranged at the position, close to the back plate of the air collecting box 6, of the fan oil baffle 5, and then flows downwards along the back plate of the air collecting box 6. The fan oil baffle 5 is close to the preceding curb plate of album bellows 6 and is close to the both ends bending type of the backplate of album bellows 6 and is formed with upper connecting portion and lower connecting portion, and upper connecting portion are connected with the preceding curb plate, and lower connecting portion are connected with the backplate of collection bellows 6, and first oil leak hole 54 runs through part lower connecting portion to can flow downwards along the backplate of collection bellows 6 after making liquid drip from first oil leak hole 54. In order to avoid the influence of the existence of the fan oil baffle plate 5 on the flow speed of the oil smoke, the area of the plurality of long oval holes forming the oil baffle plate air guiding parts 52 on the fan oil baffle plate 5 is larger than the area of the air guiding strips 53 formed between two adjacent oil baffle plate air guiding parts 52.

Referring to fig. 7, in the range hood of the present invention, the oil baffle guiding portion 52 of the fan oil baffle 5 is located in the moving direction of the air flow guided upward by the air guiding section 33. The inlet air formed by the inlet opening 11 forms an upward inclined air flow through the air guiding section 33, the air flow flows upward in an inclined manner, and when passing through the fan oil baffle 5, the air passes through the oil baffle air guiding part 52 of the fan oil baffle 5, then enters an air inlet space with a small top and a large bottom formed by the inclined surface of the exhaust fan 7 and the back plate of the air collecting box 6, enters the air cavity of the exhaust fan 7 through the air inlet of the exhaust fan 7 under the action of the exhaust fan 7, and is then discharged by the exhaust fan 7. The oil baffle air guiding part 52 of the fan oil baffle 5 is positioned in the moving direction of the air flow guided upwards by the air guiding section 33, when the air enters the fan oil baffle 5, the fan oil baffle 5 cannot influence the flowing of the air entering, and the liquid in the air entering can be gathered on the lower surface of the fan oil baffle 5, then flows towards the back plate of the air collecting box 6 along the lower surface of the fan oil baffle 5, and flows downwards along the back plate of the air collecting box 6 after flowing to the back plate of the air collecting box 6. A part of liquid in the air current passing through the oil baffle air guiding part 52 of the fan oil baffle 5 can be gathered on the upper surface of the fan oil baffle 5 and then flows to the back plate of the air collecting box 6 along the fan oil baffle 5, and the gathered liquid at the air inlet of the exhaust fan 7 can also drip to the oil receiving part of the fan oil baffle 5 and then flows to the back plate of the air collecting box 6 along the fan oil baffle 5. Set up fan oil baffle 5 between fan 7 and the inlet scoop 11 of airing exhaust, neither can influence the air current in the collection bellows 6 and get into the inlet scoop of fan 7 of airing exhaust, and the atmospheric pressure grow when the air that gets into in the collection bellows 6 passes the wind-guiding portion of fan oil baffle 5, the air current velocity of flow increases, can make the air current get into the air inlet space fast, then get into the inlet scoop of fan 7 of airing exhaust along the air inlet space, and in the in-process that the air current passes through fan oil baffle 5, some oil smoke in the air current can adsorb the lower surface at fan oil baffle 5, the liquid droplet that the inlet scoop of fan 7 of airing exhaust drips also can be accepted by the oil receiving portion of fan oil baffle 5, can avoid sending the sound when the liquid droplet that drips by the inlet scoop of fan 7 of airing exhaust falls on the bottom plate of collection bellows 6.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements or improvements made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a range hood inlet scoop structure which characterized in that: the air-guiding liquid-guiding plate comprises a panel (1), wherein an air suction opening (11) is formed in the panel (1), an air-guiding liquid-guiding piece (2) is arranged on the upper edge of the air suction opening (11), the air-guiding liquid-guiding piece (2) comprises an air-guiding liquid-guiding part (23), and the lower surface of the air-guiding liquid-guiding part (23) is a liquid-guiding surface; a liquid receiving air guide piece (3) is arranged on the lower edge of the air suction opening (11), and an oil dripping hole (31) for dripping oil downwards is formed in the liquid receiving air guide piece (3); the air guide and liquid guide piece (2) is provided with a liquid collecting part (22), liquid collected by the liquid collecting part (22) drips and passes through the ventilation air flow at the air suction opening (11) to fall into the bearing part (32) of the liquid receiving and air guide piece.

2. The range hood inlet scoop structure of claim 1, wherein the air guide and liquid guide member (2) has a receiving end (21) close to or connected with the panel (1), and the receiving end (21) is used for receiving liquid flowing down from the butt end (12) of the panel (1); the guide end (21) is connected with the air guiding and liquid guiding part (23), the guide end (21) and the butt joint end (12) of the panel (1) form a wetting gap (a), the width of the wetting gap (a) is 0.5-1.5 mm, and the wetting gap (a) is of a structure with a large lower side and a small upper side.

3. The range hood inlet scoop structure of claim 2, wherein the body of the air guiding and liquid guiding portion (23) is plate-shaped, a downward included angle α is formed between the body and a vertical plane, α is greater than 10 degrees and less than or equal to 75 degrees, a plurality of first air guiding through holes (231) are formed in the air guiding and liquid guiding portion (23), the inlet air of the inlet scoop (11) flows obliquely upward from one side of the liquid guiding surface, and the liquid guiding surface between the first air guiding through holes (231) in the body of the air guiding and liquid guiding portion (23) is an effective liquid guiding surface.

4. The range hood inlet scoop structure of claim 2, wherein the wind guide and liquid guide member (2) comprises a panel connecting portion (24), the panel connecting portion (24) has a positioning surface positioned with the panel (1), the positioning surface and the corresponding surface of the panel (1) extend along the length direction of the inlet scoop (11) and the wind guide and liquid guide member (2), the panel connecting portion (24) is a thin-wall elastic plate and forms a gap with the corresponding surface of the panel (1), and the panel connecting portion (24) is fixedly connected with the corresponding surface of the panel (1) through a fixing structure arranged along the length direction thereof.

5. The exhaust inlet structure of the range hood according to claim 4, wherein an upward included angle β is formed between the inner side surface of the panel connecting portion (24) and a vertical plane, β is greater than or equal to 10 ° and less than or equal to 35 °, and liquid flowing down from the inner side surface of the panel connecting portion (24) flows down to the liquid collecting portion (22) along the upper surface of the air guide and liquid guide portion (23).

6. The range hood inlet scoop structure of claim 1, wherein the liquid receiving and air guiding member (3) comprises an air guiding section (33), the air guiding section (33) guides air obliquely upwards, and the air guiding section (33) is connected with the bearing part (32); the liquid receiving and air guiding component (3) is detachably connected with the lower edge of the air suction opening (11).

7. The exhaust inlet structure of the range hood according to claim 6, wherein the side decorations (4) are disposed on two sides of the exhaust inlet (11), the side decorations (4) on two sides of the exhaust inlet (11) have shapes respectively adapted to the left and right sides of the exhaust inlet (11), and include an appearance surface, and the appearance surface is formed with a second air guiding through hole (41) leading to the exhaust passage of the range hood.

8. The range hood inlet scoop structure of claim 7, wherein the air guide section (33) is arc-shaped, and forms an outlet air angle ranging from 130 ° to 175 °; the air inlet of inlet scoop (11) forms four air currents, is respectively: a main air flow which is an air flow that is pressed down along the initial direction formed among the air guiding and liquid guiding part (23), the bearing part (32) and the air guiding section (33) and then is directed obliquely upwards; the inlet air passes through the upward air flow formed by the first air guide through hole (231) of the air guide liquid guide part (23); the air flow towards the left formed by the air entering through the second air guiding through hole (41) of the left side decoration piece (4) and the air flow towards the right formed by the air entering through the second air guiding through hole (41) of the right side decoration piece (4).

9. A range hood, comprising the range hood inlet scoop structure of any one of claims 1 to 8, characterized by further comprising a wind collecting box (6) and an exhaust fan (7) disposed in the wind collecting box (6), wherein the wind collecting box (6) is provided with a wind box inlet, and the inlet scoop (11) is communicated with the wind box inlet.

10. The range hood according to claim 9, wherein the air suction opening (11) is a long strip shape comprising an upper edge, a lower edge, a left side corner and a right side corner, and the upper edge and the lower edge are parallel to each other and are horizontally arranged; the panel (1) is folded inwards from the upper edge of the air suction opening (11) to form a joint part (14) and an oil blocking structure (15), and the joint part (14) is jointed with the part of the panel (1) positioned on the upper edge of the air suction opening (11) and is bent towards the inner side of the panel (1); the joint part (14) and the joint part of the oil retaining structure (15) form a butt joint end (12); the oil blocking structure (15) is formed by bending one end, far away from the panel (1), of the connection part (14) upwards, one face, far away from the panel (1), of the connection part (14) is a corresponding face, opposite to a positioning face of the panel connection part (24) of the air guide liquid guiding piece (2), of the panel (1).

11. The extractor hood according to claim 9, wherein the panel (1) has an inclined section (13), the inclined section (13) forms a first downward inclination angle γ with the vertical plane, the range of the first inclination angle γ is: gamma is more than or equal to 20 degrees and less than or equal to 30 degrees; the panel (1) is provided with a butt joint end (12), the panel (1) at the butt joint end (12) and a vertical plane form a downward second inclination angle theta, and the range of the second inclination angle is as follows: theta is more than 10 degrees and less than or equal to 75 degrees, and the inclination angle of the panel (1) at the butt joint end (12) is the same as that of the oil guide surface of the air guide liquid guide piece (2).

12. The range hood according to claim 9, wherein the wind collecting box (6) is divided into a wind box section (61) and a fan accommodating section (62), the wind box section (61) is located below the fan accommodating section (62), the wind inlet of the wind box is arranged in the wind box section (61), the exhaust fan (7) is obliquely arranged in the fan accommodating section (62), and the wind inlet of the exhaust fan (7) is obliquely arranged and faces to the rear side wall surface of the fan accommodating section (62); the air flow of the air suction opening (11) is guided to the rear side of the fan containing section (62) through the air guide section (33) of the liquid receiving air guide piece (3) in an inclined upward mode and enters the air inlet of the exhaust fan (7).

13. The range hood according to claim 9, wherein an oil baffle wall (8) is formed on an inner wall surface of a front side plate (64) of the air box (6), the oil baffle wall (8) comprises an oil baffle wall straight section (81) arranged along the air suction opening (11) and an oil baffle wall vertical section (82) arranged on two sides of the oil baffle wall straight section (81) and connected with the oil baffle wall straight section (81), and an inner wall surface of the air duct between the oil baffle wall vertical section (82) and a side wall surface of the air duct of the air box (6) forms an oil flow channel.

14. The range hood according to claim 13, wherein the straight section (81) of the oil baffle plate below the air suction opening (11) is provided with an oil drainage gap or an oil drainage hole.