CN212362138U - Kitchen fume exhauster - Google Patents

Abstract

A kitchen ventilator comprises a body, a fan, a control component and an air pipe, wherein the rear wall of the body is of a sinking structure, and is also provided with an oil-smoke separator, the oil-fume separator is arranged at the upstream of the air suction opening, and is also provided with a windward plate which is arranged at the lower side of the machine body and shields the negative pressure cavity, the windward plate is arranged in an inclined state, and the lower end of the windward plate is positioned above the oil collecting groove, the windward plate is provided with a mounting hole, the oil-smoke separator is arranged on the mounting hole, the oil fume separator is a grid formed by the flow guide vanes which are aligned one by one and connected in series, oil fume enters the grid through the oil fume inlet, repeatedly collides with the side surfaces of the flow guide vanes in a zigzag path and then enters the negative pressure cavity from the oil fume outlet, and oil mist particles in the oil fume adhere due to collision, gradually accumulate on the side surfaces of the flow guide vanes, flow downwards and finally flow into the oil collecting tank. Has the advantages of high oil separation rate, convenient assembly and disassembly and easy cleaning.

Description

Kitchen fume exhauster

Technical Field

The utility model relates to a kitchen smoke ventilator.

Background

The kitchen ventilator is also called as a range hood, and is a kitchen appliance for purifying the kitchen environment. Grease separation in range hoods is a very important issue. In order to realize the filtration and separation of grease in oil smoke, a method of arranging a filter screen at an air suction opening of a range hood is adopted at present. This can have some effect but still does not completely solve the problem. After the range hood is used for a period of time, oil stains in the interior of a machine body and in an exhaust pipeline are more, which shows that the actual oil separation rate of the existing range hood is not very high, and the low oil separation rate seriously influences the environmental cleaning and the future working performance of the range hood.

SUMMERY OF THE UTILITY MODEL

In order to solve the prior art problem, the utility model provides a kitchen range hood comprises organism, fan, control assembly and tuber pipe, the back wall of organism is the structure of sinking, still sets up the oil smoke separator, the oil smoke separator sets up the upper reaches of inlet scoop still sets up the windward plate, the windward plate is installed at the organism downside and is shielded the negative pressure chamber, the windward plate is the slope state installation and its low side is located above the oil trap the mounting hole has been seted up on the windward plate, the oil smoke separator is installed on the mounting hole, the oil smoke separator is the grid that is formed by the range alignment one by one and concatenating of water conservancy diversion blade piece, and the oil smoke warp the oil smoke entry gets into the grid, in tortuous route relapse and the side collision of water conservancy diversion blade piece then follow the oil smoke export gets into the negative pressure chamber, and oil mist granule in the oil smoke takes place the adhesion because of the collision and takes place, Gradually accumulates on the side surface of the flow guiding blade, then flows downwards and finally flows into the oil collecting tank. Has the advantages of high oil separation rate, convenient assembly and disassembly and easy cleaning.

The utility model provides a technical scheme that technical problem adopted is: a kitchen range hood comprises a body, a fan, a control assembly and an air pipe, wherein the rear wall of the body is of a sinking structure, the body is fixedly arranged on a wall through the rear wall of the body, an oil collecting groove is further arranged at the lower edge of the rear wall of the body and is of a long-strip-shaped groove-shaped structure, an air suction inlet is formed in the lower bottom surface of the body, a negative pressure cavity is formed in the lower area of the air suction inlet, an air exhaust outlet is formed in the upper side of the body, an anti-counter-wind plate is further arranged, an inlet of the air pipe is arranged on the air exhaust outlet, an outlet of the air pipe leads to an outdoor or public exhaust pipe, the kitchen range hood is characterized by further comprising an oil fume separator, the oil fume separator is arranged on the upper side of the air exhaust outlet and is further provided with a windward plate, the windward plate is arranged on the lower side of the body and covers the negative, the windward plate is provided with a mounting hole, the oil fume separator is mounted on the mounting hole, an oil fume inlet of the oil fume separator is positioned at the outer side of the negative pressure cavity, an outlet of the oil fume separator is positioned at the inner side of the negative pressure cavity, oil fume generated by the cooking range rises and then enters the oil fume separator through the oil fume inlet of the oil fume separator, then enters the negative pressure cavity from the oil fume outlet of the oil fume separator, and finally is discharged into the air pipe through the air suction opening and the air exhaust opening in sequence,

the oil fume separator is a grid formed by arranging guide vanes one by one in an aligned mode and connecting the guide vanes in series, two ends of the grid are sealed, the guide vanes are vertically installed (namely the vanes are in a vertical state), positioning components for connecting the guide vanes in series are arranged on the left side face and the right side face of each guide vane respectively, ventilation gaps are formed between every two adjacent guide vanes, the ventilation gaps form ventilation isolated channels, the ventilation isolated channels are in a bent state, the lower side of the grid is an oil fume inlet, the upper side of the grid is an oil fume outlet, oil fume enters the grid through the oil fume inlet, collides with the side faces of the guide vanes repeatedly in a bent path and then enters the negative pressure cavity from the oil fume outlet, and oil mist particles in the oil fume adhere to the side faces of the guide vanes due to collision, are gradually accumulated on the side faces of the guide vanes, then flow to the lower.

Preferably, the periphery of the windward plate is installed and fixed on the lower side of the machine body in a closed manner.

Preferably, the periphery of the windward plate is installed and fixed on the lower side of the machine body in an open mode, and a gap is formed between the periphery of the windward plate and the machine body.

In an optimal scheme, the oil fume separator is divided into a plurality of independent grid modules, correspondingly, a plurality of mounting holes are formed in the windward plate side by side, and one grid module is arranged in each mounting hole.

In the preferable scheme, the left side and the right side of the guide vane are wavy curved surfaces, and the cross section of the guide vane is of a wavy structure.

In a preferable scheme, the flow guide vane is of a plane straight plate structure.

In the preferred scheme, the left side surface and the right side surface of the flow guide vane are respectively provided with a plurality of longitudinal clapboards, and the ventilation partition channel is divided into a repeatedly zigzag state by the longitudinal clapboards.

In the preferable scheme, rib plates are further arranged on the cross section of the flow guide vane piece and are arranged at intervals along the longitudinal direction.

Preferably, the positioning member is a pin and a positioning hole, the pin is arranged on one side surface of the guide vane, the positioning hole is arranged on the corresponding position on the other side surface, and the pin is inserted into the positioning hole to serially connect and fix the adjacent guide vanes.

Preferably, the longitudinal direction of the guide vane is linear.

Preferably, the longitudinal direction of the flow guide vane is linear and at least one end of the flow guide vane is of an arc bending structure.

In a preferable scheme, two ends of the grating are respectively provided with a sheath, and the sheaths are used for enclosing and fixing the guide vanes connected in series.

According to the preferable scheme, the bending angles of the ventilation isolating channels are sequentially reduced according to the flowing direction of the oil smoke.

Preferably, the lower edge of the flow guide vane is also provided with a longitudinal oil dripping plate.

Preferably, through holes are further arranged in the longitudinal direction of the guide vanes, and the grids form transverse communication holes inside the through holes.

The utility model has the advantages that: the utility model provides a kitchen smoke exhaust ventilator, which consists of a machine body, a fan, a control component and an air pipe, the rear wall of the machine body is of a sinking structure, the machine body is also provided with an oil fume separator, the oil fume separator is arranged at the upstream of the air suction opening and is also provided with a windward plate, the windward plate is arranged at the lower side of the machine body and shields the negative pressure cavity, the windward plate is arranged in an inclined state, the lower end of the windward plate is positioned above the oil collecting groove, the windward plate is provided with a mounting hole, the oil-smoke separator is arranged on the mounting hole, the oil fume separator is a grid formed by the flow guide vanes which are aligned one by one and connected in series, oil fume enters the grid through the oil fume inlet, repeatedly collides with the side surfaces of the flow guide vanes in a zigzag path and then enters the negative pressure cavity from the oil fume outlet, and oil mist particles in the oil fume adhere due to collision, gradually accumulate on the side surfaces of the flow guide vanes, flow downwards and finally flow into the oil collecting tank. Has the advantages of high oil separation rate, convenient assembly and disassembly and easy cleaning.

Drawings

Fig. 1-14 are schematic structural views of a first embodiment of the present invention. Wherein the content of the first and second substances,

fig. 1 to 4 are schematic views of overall structure reduction, fig. 1 is a perspective view of overall structure reduction, fig. 2 is a perspective view of overall structure reduction showing a bottom structure, fig. 3 is a front view of overall structure reduction, and fig. 4 is a left view of overall structure reduction; fig. 5-7 are schematic partial structure reductions, wherein fig. 5 is a schematic view of a bottom structure reduction of the machine body, fig. 6 is a schematic view of a reduction of an installation structure of the oil smoke separator, and fig. 7 is a schematic view of a reduction of a windward plate structure;

fig. 8, 9, 10, 13 and 14 are partial structural schematic diagrams, wherein fig. 8 is a perspective view of a grid module, fig. 9 is a perspective view of a flow guide vane, fig. 10 is a front view of the grid module, fig. 13 is a jacket structural schematic diagram, and fig. 14 is a jacket cut-away structural schematic diagram;

fig. 11 and 12 are enlarged partial structural views, fig. 11 is an enlarged structural view of the guide vane at the positioning member, and fig. 12 is a design parameter view of the ventilation partition (the arrow direction in the figure is the oil smoke flowing direction).

Fig. 15 and 16 are schematic structural views of a second embodiment of the present invention. Fig. 15 is a perspective view of the whole structure, and fig. 16 is a partial structure.

Fig. 17 is a schematic view of the design of the ventilation duct according to the third embodiment of the present invention.

Fig. 18 and 19 are enlarged schematic views of a part of the structure of the fourth embodiment of the present invention. Fig. 18 is a partial structure enlarged schematic view, and fig. 19 is a partial structure cross-sectional enlarged schematic view.

Fig. 20 is an enlarged view of a part of the structure of the fifth embodiment of the present invention.

Fig. 21 is an enlarged schematic sectional view of a sixth embodiment of the present invention (the arrow direction in the figure is the oil smoke flowing direction).

Fig. 22 to 28 are schematic views of a seventh embodiment of the present invention. Wherein, fig. 22-24 are overall structure reduction schematic diagrams, fig. 22 is an overall reduction perspective view showing the bottom structure, fig. 23 is an overall structure reduction front view, and fig. 24 is an overall structure reduction left view; fig. 25-28 are schematic partial structure reductions, where fig. 25 is a schematic view of a reduced bottom structure of the machine body, fig. 26 is a schematic view of a reduced bottom structure of the machine body, fig. 27 is a schematic view of a reduced installation structure of the soot separator, and fig. 28 is a schematic view of a reduced structure of the windward plate.

Fig. 22 to 28 are schematic views of a seventh embodiment of the present invention. Wherein, fig. 22-24 are overall structure reduction schematic diagrams, fig. 22 is an overall reduction perspective view showing the bottom structure, fig. 23 is an overall structure reduction front view, and fig. 24 is an overall structure reduction left view; FIG. 25-

Fig. 28 is a schematic view of a partial structure, in which fig. 25 is a schematic view of a reduced bottom structure of the machine body, fig. 26 is a schematic view of a reduced bottom structure of the machine body, fig. 27 is a schematic view of a reduced installation structure of the soot separator, and fig. 28 is a schematic view of a reduced structure of the windward plate.

Fig. 29 is a schematic view showing a reduction in the overall structure of the eighth embodiment of the present invention.

In the figure:

01. the air conditioner comprises a machine body, a 01A oil collecting tank, a 01B1 smoke suction port, a 01B11 negative pressure cavity, a 01B2 air outlet and a 01C machine body rear wall;

02. an air duct;

03. a wall;

04. windward plates, mounting holes 04A, 04B, 04C and 04D, mounting hole hems 04B11 and 04B12, mounting hole side edges 04B13 and 04B14,

bearing surfaces at two ends of 04B21 and 04B22, fixing bolts of 04E1 and 04E2, a lower end of 04F and a gap at the periphery of 04G;

1.2, 3 and 4 grating modules, 1A lower bottom surface, 1B upper top surface and 1C grating module lower end;

1.1, 1.2 flow guide vanes;

1.11 positioning component, 1.11A bolt and 1.11B positioning hole;

1.12 rib plates;

1.131 wave trough, 1.132 wave crest;

1.14 arc bending;

1.15 ventilating isolation channels;

1.16 arrangement surfaces;

1.17A lower edge, 1.17A1 longitudinal oil dripping plate, 1.17B upper edge;

1.18 longitudinal partitions;

1.19 through holes;

1.110A first bending point, 1.110B second bending point, 1.110C third bending point and 1.110D fourth bending point;

a 1.111A lampblack inlet and a 1.111B lampblack outlet;

1.112A and 1.112B jackets, 1.112A1, 1.112A2 side walls, 1.112A3 notches, 1.112A4 groove bottoms and 1.112A5 oil leakage holes.

Detailed Description

Fig. 1-14 are schematic structural views of a first embodiment of the present invention.

Wherein, fig. 1-4 are a reduced schematic view of the overall structure, fig. 1 is a reduced perspective view of the overall structure, fig. 2 is a reduced perspective view of the overall structure showing the bottom structure, fig. 3 is a reduced front view of the overall structure, and fig. 4 is a reduced left view of the overall structure; fig. 5-7 are schematic partial structure reductions, wherein fig. 5 is a schematic view of a bottom structure reduction of the machine body, fig. 6 is a schematic view of a reduction of an installation structure of the oil smoke separator, and fig. 7 is a schematic view of a reduction of a windward plate structure;

fig. 8, 9, 10, 13 and 14 are partial structural schematic diagrams, wherein fig. 8 is a perspective view of a grid module, fig. 10 is a front view of the grid module, fig. 9 is a perspective view of a flow guide vane, fig. 13 is a jacket structural schematic diagram, and fig. 14 is a jacket cut-away structural schematic diagram;

fig. 11 and 12 are enlarged partial structural views, fig. 11 is an enlarged structural view of a guide vane at a positioning member, fig. 12 is a design parameter view of an air duct, and an arrow direction in the drawings is a lampblack flowing direction.

Fig. 1-14 are schematic structural views of a first embodiment of the present invention. In the figure, the kitchen range hood is shown in the figure, and the kitchen range hood consists of a body 01, a fan, a control assembly and an air pipe, wherein the rear wall 01C of the body is of a sinking structure, the body is fixedly arranged on a wall 03 above a cooking range through the rear wall of the body, the lower edge of the rear wall 01C of the body is also provided with an oil collecting tank 01A, the oil collecting tank is of a long-strip-shaped groove-shaped structure, the lower bottom surface of the body is provided with an air suction opening 01B1, the lower area of the air suction opening 01B1 forms a negative pressure cavity 01B11, the upper side of the body is provided with an air outlet 01B2, an anti-counter-wind plate is further arranged in the air outlet 01B2, the inlet of the air pipe is arranged on. In this example, still set up the oil smoke separator, the oil smoke separator sets up the upper reaches at inlet scoop 01B1 (the oil smoke flows through the inlet scoop of reentrant after the oil smoke separator), still sets up windward plate 04, and windward plate 04 installs at the organism 01 downside and hides and close negative pressure chamber 01B11, and windward plate 04 is the slope state installation fixed and its low side is located oil collecting tank 01A upper face, has seted up the mounting hole on windward plate 04, the oil smoke separator is installed on the mounting hole, the oil smoke entry 1.111A of oil smoke separator is located the negative pressure chamber outside and oil smoke export 1.111B is located the negative pressure chamber is inboard. The oil smoke generated by the stove rises and enters the oil smoke separator through an oil smoke inlet 1.111A of the oil smoke separator, then enters the negative pressure cavity from an oil smoke outlet 1.111B, and finally is discharged into the air pipe through an air suction inlet 01B1 and an air exhaust outlet 01B2 in sequence. Fig. 2, 3 and 6 show that, in this example, the oil smoke separator is divided into four independent modules, namely, a grid module 1, a grid module 2, a grid module 3 and a grid module 4.

Fig. 8-14 show that, in this example, the grid module forming the oil smoke separator is a grid structure formed by aligning, connecting and fixing the guide vanes 1.1 one by one, the guide vanes are vertically installed (that is, the vanes are in a vertical state), the left and right sides of the guide vanes 1.1 are wavy curved surfaces, the cross section of the guide vanes 1.1 is wavy structure, the left and right sides of the guide vanes 1.1 are respectively provided with a plurality of positioning members 1.11 for connecting in series, ventilation gaps are formed between adjacent guide vanes, the ventilation gaps form ventilation partitions 1.15, the ventilation partitions 1.15 are in wavy zigzag state, the lower side of the grid module is an oil smoke inlet 1.111A and the upper side is an oil smoke outlet 1.111B, oil smoke enters the grid module through the oil smoke inlet 1.111A, repeatedly collides with the side surfaces of the guide vanes 1.1 in the zigzag path, and then enters the negative pressure cavity from the oil smoke outlet 1.111B. Fig. 9 shows that, in this example, the flow guide vanes 1.1 are of a longitudinally rectilinear configuration. The utility model discloses the suggestion because the grid can form a large-capacity space in inside, consequently has the ability of confinement in the twinkling of an eye and absorbing a large amount of smog to because the ventilation separates the way and is tortuous state from bottom to top, the oil smoke bumps with the side many times when flowing in the ventilation separates the way, therefore the probability of oil mist adhesion increases greatly, makes the separation rate of grease can obtain obvious improvement.

Fig. 12 shows that, in this example, the air duct 1.15 has 6 bending points. The utility model discloses the suggestion, in other embodiments, it is preferred, 2-6 can be selected to the wind separation bend point.

The utility model discloses the suggestion, the whole size of considering oil smoke separator comprehensively and the collision adhesion effect of oil mist in the oil smoke, in this example, the preferred 10 ° -50 ° of slope installation angle (the contained angle with the horizontal plane) of oil smoke separator; the height H of the grid module (namely the height between the lower bottom surface 1A and the upper top surface 1B) can be selected from 20mm-120 mm; the ventilation ducts can be referenced to the following dimensions: the bending angle alpha can be selected from 90-130 degrees; the width-length ratio of the ventilation partition, namely the ratio of the width A to the bending length L, is 0.2-0.5 (namely the ratio of A/L is more than or equal to 0.2 and less than or equal to 0.5); the absolute dimension of the width A of the air duct can be selected from 2.5mm to 30 mm. The design of the ventilation isolation channel directly influences the ventilation effect, and under the condition that the height H of the grating module is not changed, the size of the width A is reduced, the ventilation section is reduced, and the ventilation resistance is increased; the width-length ratio A/L is reduced, and the ventilation resistance is increased; the more the bending point, the larger the ventilation resistance. And the larger the ventilation resistance, the better the adhesion effect of the oil mist.

Fig. 9 and 11 show that in this example, the cross section (transverse direction) of the flow guide vane 1.1 is further provided with rib plates 1.12, and the rib plates 1.12 are arranged at intervals along the longitudinal direction. In this example, the positioning members 1.11 for serial connection are the insertion pin 1.11A and the positioning hole 1.11B, and the positioning members 1.11 are arranged at intervals along the longitudinal direction. A bolt 1.11A is arranged on one side surface (left side surface or right side surface) of the guide vane 1.1, a positioning hole 1.11B (positioning hole, namely socket with hole) is arranged on the corresponding position of the other side surface, and the bolt 1.11A is inserted into the positioning hole 1.11B to enable the guide vanes to be aligned and connected in series one by one. The utility model discloses the suggestion sets up a plurality of gusset 1.12 along longitudinal separation on water conservancy diversion leaf piece 1.1 is the utility model discloses an optimal selection scheme, its purpose increases the intensity of water conservancy diversion leaf piece.

The utility model discloses the suggestion, in this example, water conservancy diversion leaf piece 1.1 should adopt injection moulding, consequently, gusset 1.12 and bolt 1.11A and locating hole 1.11B above it and leaf piece body etc. all can integral type injection moulding. Integral type injection moulding sets up and concatenates the locating component on water conservancy diversion leaf 1.1 the utility model discloses an optimal scheme, the alignment that the purpose made water conservancy diversion leaf when making the grid module concatenates more easily. Grid modules with different widths B can be formed in series according to requirements.

Fig. 8, 13 and 14 show that in this example, the two ends of the grid module 1 are respectively provided with jackets 1.112A and 1.112B, the jackets are in groove-shaped structures, the jackets are provided with 4 groove walls, 1 groove bottom 1.112A4 and 1 groove opening 1.112A3, and the jackets can seal the two ends of the grid module. The side walls 1.112A1 and 1.112A2 of the jacket 1.112A are shown to have wave-shaped curved surfaces matched with the guide vanes (the jacket 1.112B is similar in structure), and the jacket can be used for enclosing and fixing the guide vanes which are connected in series. In this example, after the guide vanes are aligned and connected in series one by the positioning members 1.11, the sheaths 1.112A and 1.112B can be easily wrapped at both ends of the grid module 1. Because the guide vanes 1.1 are in a discrete state before being connected in series, if the guide vanes are not connected in series and positioned by the positioning members, the guide vanes are difficult to align one by one, and the sheaths 1.112A and 1.112B are difficult to be wrapped at the two ends of the grid module 1. In this example, the positioning member 1.11 is aligned and connected in series, and the bolt 1.11A and the positioning hole 1.11B do not need to be tightly matched for convenient assembly and disassembly. The sheaths 1.112A and 1.112B play a role in hooping and fixing the grid module, and can fix the flow guide vanes 1.1 which are connected in series into a whole. When the flow guide vanes are disassembled and cleaned in daily disassembly and cleaning, the flow guide vanes can be disassembled and cleaned easily only by disassembling the sheath sleeves at the two ends. In this example, the locating component need not the tight fit to cramp fixedly and seal its both ends to the grid module through setting up the canning, this technical scheme is the utility model discloses a preferred scheme. The utility model discloses the suggestion, in other embodiments, if the locating component adopts the tight fit, then concatenating between the water conservancy diversion leaf piece can realize fixedly through the locating component, the both ends of grid module can not set up the canning, under this condition, can adopt other modes to seal the both ends of grid module, for example, make mounting hole side 04B13, 04B14 highly match each other with the height H of grid module and make the length of grid module (the distance between two terminal surfaces of grid module) and the length of mounting hole (the distance between mounting hole side 04B13 and 04B14 promptly) match each other, thereby make two terminal surfaces of grid module laminate each other with the mounting hole side respectively and seal the both ends of grid module.

Fig. 6 to 7 show that, in this example, 4 mounting holes, namely, mounting holes 04A, 04B, 04C, and 04D, are correspondingly provided in the windward plate 04. As shown in the figure, the mounting hole is further provided with mounting hole flanges (such as mounting hole flanges 04B11, 04B12 of the mounting hole 04B), and two end bearing surfaces 04B21, 04B22 are further arranged at two ends of the mounting hole. The oil fume separator is split into 4 grating modules, and the grating modules 1, 2, 3 and 4 are respectively installed in the installation holes 04A, 04B, 04C and 04D and fixed. In the embodiment, the oil fume separator is divided into the four grating modules, so that the oil fume separator can be changed from a large size to a small size, and the daily installation and removal are convenient. The distance between the side edges 04B11 and 04B12 (i.e., the width of the mounting hole) and the width B of the grill module are matched with each other, and when the grill module is placed in the mounting hole, the left and right sides of the grill module are clamped and fixed by the mounting hole folding edges 04B11, 04B 12. Meanwhile, the sheaths 1.112A and 1.112B are held and fixed by the bearing surfaces 04B21 and 04B22 at the two ends. The utility model discloses the suggestion adopts mounting hole hem 04B11, 04B12 and both ends loading end 04B21, 04B22 to fix the grid module is the preferred scheme that this embodiment proposed. In consideration of the suction effect of the cooking fume, besides the clamping and fixing of the mounting hole folding edges 04B11 and 04B12, the mounting and fixing of the grating module can be enhanced by adopting general fixing modes such as screws, magnetic attraction, buckles and the like.

In this example, the windward plate 04 is a flat plate structure, and the periphery of the windward plate 04 is mounted and fixed to the lower side of the machine body 01 in a closed manner. The windward plate 04 is fixedly installed on the lower side of the machine body 01 and closes the negative pressure cavity by arranging a buckle at one end of the windward plate 04 and arranging fixing bolts 04E1 and 04E2 at the other end of the windward plate 04, the windward plate 04 can be detached from the machine body 01 by the fixing bolts 04E1 and 04E2, and then the grid modules 1, 2, 3 and 4 are taken out for replacement or cleaning. Make the oil smoke separator realize the installation fixed through the windward plate, make the dismouting of oil smoke separator more convenient on the one hand, on the other hand makes smoke ventilator's outward appearance more pleasing to the eye.

In this example, the windward plate 04 is of an integral 4-hole structure; the utility model discloses a suggestion, in other embodiments, the windward plate 04 can also be an integral 2-hole or 3-hole structure; moreover, the integral type windward plate can be changed into a split type, namely, the windward plate can be split into two independent split windward plates from a whole body, each split windward plate is provided with 2 mounting holes, and each split windward plate is independently fixed. The windward plate can be changed from a large size to a small size by disassembling the windward plate, so that the windward plate is convenient to disassemble and assemble daily.

In this example, the lower end 04F of the windward plate 04 is provided with oil leakage holes for oil leakage (the sheath 1.112A of the lower end 1C of the grille module is also provided with oil leakage holes for oil leakage), because the windward plate 04 is installed and fixed in an inclined state (the grille module is installed on the upper surface of the windward plate and is also in an inclined state), oil stains adhered on the side surface of the flow guide vane 1.1 can flow to the lower end 1C of the grille module and finally fall into the oil collecting tank 01A through the lower end 04F of the windward plate.

The utility model discloses the suggestion, windward plate 04 is the slope state installation fixed. If the settlement range of the rear wall 01C of the machine body is increased, the inclination angle of the windward plate (namely the included angle between the windward plate and the horizontal plane) is further increased, so that the effect of further reducing the smoke suction port of the range hood can be achieved. In this example, smoke ventilator is the top-suction type structure, the utility model discloses the suggestion, in other embodiments, smoke ventilator can also adopt the side-suction type structure.

The utility model discloses the suggestion can adopt general fixed modes such as screw, magnetism to inhale, buckle to install windward plate 04 fixed.

The width of the existing top suction type range hood is large due to the structure, and personnel easily collide the head in the using process. The utility model discloses the suggestion because the oil smoke separator is the slope state installation fixed, consequently smoke ventilator's organism width can reduce and then avoid personnel to take place to bump the head.

The utility model discloses the suggestion because water conservancy diversion leaf piece is formed by moulding plastics, can also carry out surface treatment to it to clean the greasy dirt more easily in daily use.

In this example, the rear wall 01C of the machine body is of a sunken structure, the windward plate 04 is installed in an inclined state, the lower end 04F of the windward plate is positioned above the oil collecting tank 01A, the windward plate 04 is provided with an installation hole, and the oil-smoke separator composed of the grating modules is installed on the installation hole; wherein, this technical scheme of organism back wall 01C is the sunken structure is in order to cooperate the mounting structure of windward plate slope, makes smoke ventilator appearance structure more pleasing to the eye. The utility model discloses indicate, in other embodiments, if the organism rear wall 01C does not adopt the structure of sinking, then breach will appear in the left and right both sides of organism in the negative pressure chamber above the windward plate, adopt technical means to seal the breach. Such technical scheme with the utility model belongs to the equivalent technical scheme.

Fig. 15 and 16 are schematic structural views of a second embodiment of the present invention. Fig. 15 is a perspective view of the whole structure, and fig. 16 is a partial structure. In the present example, unlike the first exemplary embodiment, the flow guide vanes 1.1 are straight in the longitudinal direction and have a curved configuration at one end (the flow guide vanes 1.1 are of a curved blade configuration).

Fig. 17 is a schematic view of the design of the ventilation duct according to the third embodiment of the present invention. Compared with fig. 12, unlike the first embodiment, in this embodiment, the bend angles of the ventilation ducts 1.15 are successively smaller in accordance with the direction in which soot flows. In this example, the bending time corresponding to the first bending point 1.110A is a1, the bending time corresponding to the second bending point 1.110B is a2, the bending time corresponding to the third bending point 1.110C is a3, and the bending time corresponding to the fourth bending point 1.110D is a4, and the angle values are a1 > a2 > a3 > a4 (wherein a1 can be selected from 110 ° -130 °, and a4 can be selected from 85 ° -95 °). In this case, the bending angles are sequentially decreased, so that the oil smoke separator can gradually capture oil mist with smaller and smaller particles in the flowing process of oil smoke.

Fig. 18 and 19 are enlarged schematic views of a part of the structure of the fourth embodiment of the present invention. Fig. 18 is a partial structure enlarged schematic view, and fig. 19 is a partial structure cross-sectional enlarged schematic view. Compared with fig. 17, in this embodiment, unlike the third embodiment, the guide sheet 1.1 is further provided with a plurality of longitudinal partitions 1.18 on the left and right sides. In this example, the lower edge 1.17A of the guide vane 1.1 is further provided with a longitudinal oil dripping plate 1.17A1 (the longitudinal oil dripping plate is horizontally arranged, and the width of the plate is preferably 3-6 mm), and the longitudinal oil dripping plate 1.17A1 can enable oil stains adhered on the side surface of the guide vane to flow towards the oil collecting tank all the time to avoid vertically dripping halfway downwards (the utility model discloses a suggestion, in other embodiments, the cross section of the guide vane 1.1 is provided with a circular structure at the lower edge 1.17A, which is also helpful for avoiding vertically dripping halfway oil droplets). In this example, the longitudinal partition plates 1.18 are provided to improve the collision adhesion effect of the oil mist in the soot. The utility model discloses indicate, in this example, owing to set up longitudinal baffle 1.18, the width to length ratio of ventilation partition way can increase.

Fig. 20 is an enlarged view of a part of the structure of the fifth embodiment of the present invention. Compared with fig. 18, in this example, in contrast to the fourth exemplary embodiment, the flow guide vanes 1.1 are also provided with through holes 1.19 arranged in a longitudinal row. The through holes 1.19 enable the grid module 1 to form transverse communication holes inside, so that the guide vanes are communicated with each other, the negative pressure of each ventilation channel can be balanced, and the ventilation channels can play a synergistic effect in the flowing process of oil smoke.

Fig. 21 is an enlarged partial structural cross-sectional view illustrating a sixth embodiment of the present invention. In contrast to fig. 19, in this example, the guide vanes 1.1 are of planar, straight-plate construction, in contrast to the fourth exemplary embodiment. A linear ventilation channel formed between the adjacent guide vanes 1.1 and 1.2 is divided into a repeatedly zigzag state by arranging a plurality of longitudinal clapboards 1.18.

Fig. 22 to 28 are schematic views of a seventh embodiment of the present invention. Wherein, fig. 22-24 are overall structure reduction schematic diagrams, fig. 22 is an overall reduction perspective view showing the bottom structure, fig. 23 is an overall structure reduction front view, and fig. 24 is an overall structure reduction left view; FIG. 25-

Fig. 28 is a schematic view of a partial structure, in which fig. 25 is a schematic view of a reduced structure of a machine body, fig. 26 is a schematic view of a reduced structure of a bottom portion of the machine body, fig. 27 is a schematic view of a reduced structure of a soot separator mounting structure, and fig. 28 is a schematic view of a reduced structure of a windward plate. In the present example, unlike the first exemplary embodiment, the grid modules 1, 2, 3 and 4 are shown to have a curved configuration at one end (the guide vanes 1.1 are straight in the longitudinal direction and curved at one end, the guide vanes 1.1 are of a bent blade configuration). The windward plate 04 is not a flat plate, but has a circular arc bending structure and is matched with the grid module.

Fig. 29 is a schematic view of an eighth embodiment of the present invention. Unlike the first embodiment, in this embodiment, the windward plate 04 is installed and fixed on the lower side of the machine body 01 in an open manner, and a peripheral gap 04G is formed between the periphery of the windward plate 04 and the machine body 01. When the range is fried quickly, the oil smoke is large and possibly extends to the periphery, and the peripheral gap 04G can also be used as the last suction inlet of the oil smoke.

The present invention suggests that the "horizontal" and "vertical" mentioned in the present invention are not equal to the mathematical concept "horizontal (0 degree)" or "vertical (90 degrees)", and are only used to explain the technical content of the present invention, and are not limited to the mathematical meaning "horizontal (0 degree)" or "vertical (90 degrees)", in the embodiment. Moreover, the foregoing is only a few of the presently preferred embodiments of the present invention. Besides, according to the technical scheme provided by the utility model, thereby can also carry out corresponding adjustment to the cross sectional shape of water conservancy diversion leaf piece, longitudinal structure, positioning member's structure and canning etc. and realize more embodiments. All equivalent substitutions, adjustments or improvements based on the technical scheme provided by the utility model are included in the protection scope of the utility model.

Claims (10)

1. A kitchen range hood comprises a body, a fan, a control assembly and an air pipe, wherein the rear wall of the body is of a sinking structure, the body is fixedly arranged on a wall through the rear wall of the body, an oil collecting groove is further arranged at the lower edge of the rear wall of the body and is of a long-strip-shaped groove-shaped structure, an air suction inlet is formed in the lower bottom surface of the body, a negative pressure cavity is formed in the lower area of the air suction inlet, an air exhaust outlet is formed in the upper side of the body, an anti-counter-wind plate is further arranged, an inlet of the air pipe is arranged on the air exhaust outlet, an outlet of the air pipe leads to an outdoor or public exhaust pipe, the kitchen range hood is characterized by further comprising an oil fume separator, the oil fume separator is arranged on the upper side of the air exhaust outlet and is further provided with a windward plate, the windward plate is arranged on the lower side of the body and covers the negative, the windward plate is provided with a mounting hole, the oil fume separator is mounted on the mounting hole, an oil fume inlet of the oil fume separator is positioned on the outer side of the negative pressure cavity, an outlet of the oil fume separator is positioned on the inner side of the negative pressure cavity, oil fume generated by the cooking range rises and then enters the oil fume separator through the oil fume inlet of the oil fume separator, then enters the negative pressure cavity from the oil fume outlet of the oil fume separator, and finally is discharged into the air pipe through the air suction port and the air exhaust port in sequence;

the oil fume separator is a grid formed by arranging guide vanes one by one in an aligned mode and connecting the guide vanes in series, two ends of the grid are sealed, the guide vanes are vertically installed, namely the vanes are in a vertical state, positioning components used for connecting the guide vanes in series are arranged on the left side face and the right side face of each guide vane respectively, ventilation gaps are formed between every two adjacent guide vanes, the ventilation gaps form ventilation isolated channels, the ventilation isolated channels are in a bent state, the lower side of the grid is an oil fume inlet, the upper side of the grid is an oil fume outlet, oil fume enters the grid through the oil fume inlet, repeatedly collides with the side faces of the guide vanes in a bent path and then enters the negative pressure cavity from the oil fume outlet, and oil mist particles in the oil fume adhere to each other due to collision, are gradually accumulated on the side faces of the guide vanes, then flow to the lower portions and finally.

2. A kitchen hood according to claim 1 wherein said windward plate is mounted in close proximity to the underside of said body.

3. A kitchen hood according to claim 1 wherein said windward plate is open mounted and secured about said underside of said body, and a gap is provided between said windward plate periphery and said body.

4. A kitchen ventilator as claimed in any one of claims 1 to 3 in which the fume separator is split into a plurality of independent grille modules, and correspondingly, a plurality of mounting holes are provided in the windward plate side by side, one grille module being provided in each mounting hole.

5. A kitchen ventilator according to any of claims 1-3, characterized in that the left and right sides of said deflector vane are wavy curved surfaces, and the cross section of said deflector vane is wavy.

6. A kitchen ventilator as claimed in any one of claims 1 to 3 wherein said deflector vane is of a planar straight plate construction, said deflector vane being further provided on its left and right sides with a plurality of longitudinal partitions respectively, said longitudinal partitions dividing said ventilation duct into a repeatedly tortuous condition.

7. A kitchen ventilator according to any of claims 1-3, characterized in that the cross section of the flow guide vane is further provided with rib plates, and the rib plates are arranged at intervals along the longitudinal direction.

8. A kitchen ventilator as claimed in any one of claims 1 to 3 wherein said positioning members are pins and positioning holes, the pins are provided on one side of said guide vanes and the positioning holes are provided on the other side, and the pins are inserted into the positioning holes to connect adjacent guide vanes in series.

9. A kitchen ventilator according to any of claims 1-3 in which the two ends of the grill are each provided with a wrap which encases and secures the series-connected flow-directing flaps.

10. A kitchen hood according to any one of claims 1-3, characterized in that said deflector fins are provided with through holes arranged longitudinally, said through holes forming inside the grille a transversal communication hole.

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