CN208332380U - A kind of ideal kitchen ventilator of smoking efficiency - Google Patents

Abstract

The utility model provides a kind of ideal kitchen ventilator of smoking efficiency, including cabinet and spiral case, the spiral case is located in the cabinet, advancing air channel is formed between the foreboard of the spiral case and the foreboard of the cabinet, rear air intake passage is formed between the back plate of the spiral case and the back plate of the cabinet, it is characterized in that, the lower section of the spiral case is equipped with the deflector of V-arrangement, the rear and front end of the deflector is connect with the front and rear panels of the spiral case respectively, the bottom end of the deflector is at a distance from the foreboard of the cabinet greater than the distance between the bottom end of the deflector and described back plate, the kitchen ventilator includes the oil network below the deflector, the oil network is towards deflector direction indent.Kitchen ventilator provided by the utility model may be used on kitchen utensils field, by the way that deflector is arranged, reduces the formation of turbulent flow, reduces operating noise, improve work efficiency.

Description

A kind of ideal kitchen ventilator of smoking efficiency

Technical field

The utility model relates to kitchen utensils fields, and in particular, to a kind of kitchen ventilator.

Background technique

Kitchen ventilator is one of essential machine for kitchen use equipment of family.For the working efficiency for improving kitchen ventilator, there are one Kind kitchen ventilator, the front/rear end of spiral case are respectively formed with advance air port and rear air inlet, and the upper surface of spiral case has and cabinet The upper exhaust vent that communicates of air outlet, the centrifugal impeller that rotation is driven by motor is installed in spiral case.Compared to single admission Kitchen ventilator, the problem that front and back both sides air inlet can improve the efficiency of kitchen ventilator, but bring noise big simultaneously.

Utility model content

In order to solve the above-mentioned technical problem, the utility model provides a kind of kitchen ventilator, can reduce both sides air inlet The operating noise of kitchen ventilator.

In order to reach the purpose of this utility model, the technical solution that the utility model is taken is as follows:

The utility model provides a kind of ideal kitchen ventilator of smoking efficiency, including cabinet and spiral case, the spiral case are located at In the cabinet, advancing air channel, the back plate of the spiral case are formed between the foreboard of the spiral case and the foreboard of the cabinet Rear air intake passage is formed between the back plate of the cabinet, the lower section of the spiral case is equipped with the deflector of V-arrangement, the deflector Rear and front end connect respectively with the front and rear panels of the spiral case, the foreboard of the bottom end of the deflector and the cabinet away from From the distance between the bottom end and the back plate for being greater than the deflector, the kitchen ventilator includes being located at below the deflector Oil network, the oil network is towards deflector direction indent.

The kitchen ventilator of the present embodiment, the front side of spiral case and rear side are respectively formed with advancing air channel and rear air intake passage, And the lower section of spiral case is equipped with the deflector of V-arrangement, first passes around deflector from the oil smoke that the air inlet of oil smoke motor spindle enters in this way, The front and rear sides plate guidance oil smoke of deflector flows two sides forward and backward, and then flows into advancing air channel and rear air intake passage, It then enters back into spiral case, is discharged eventually by the spiral case exhaust vent on spiral case, the air outlet on cabinet.Pass through leading for deflector Stream, enables oil smoke smoothly to alter course and is smoothly introduced into advancing air channel and rear air intake passage, before reducing oil smoke inflow Turbulent formation during air intake passage and rear air intake passage reduces noise when kitchen ventilator work.

Oil network is located at below deflector, and towards deflector direction indent, so that the inverted V-shaped construction and deflector of oil network V-shaped configuration form contraposition, the two combines the moulding to form similar funnel, can form venturi on the flow path of air duct and accelerate effect Fruit promotes the smoke exhaust efficiency of oil smoke, and oil smoke has the guidance effect of two sides flowing forwards, backwards, reduce after the entrance of inverted V-shaped oil network The choked flow crushing of deflector, oil smoke smoothly enter advancing air channel and rear air intake passage along deflector front and rear sides, improve The smoking efficiency of kitchen ventilator.

Optionally, the bottom end of the deflector includes left side and right side, and the left side is along side from left to right To gradually inclination upwards, the right side gradually tilts upwards along the direction of right-to-left.

The left side of deflector bottom end gradually tilts upwards along direction from left to right, and right side is along right-to-left Direction gradually tilts upwards so that the intersection point of left side and right side is located at intermediate position and position is higher, this with flow through water conservancy diversion The fast situation of slow, the intermediate flow velocity of the oil smoke air-flow two sides flow velocity of plate is adapted, so that deflector is made with preferably water conservancy diversion noise reduction With.

Optionally, the spiral case has spiral case air inlet hole, the intersection point and the spiral case of the left side and the right side The center of air inlet hole is overlapped in the lateral direction；

Alternatively, the kitchen ventilator has air inlet, the intersection point and the air inlet of the left side and the right side Center is overlapped in the lateral direction.

In one case, the center of the position of the intersection point of the left side and right side of deflector bottom end and spiral case air inlet hole Position is overlapped in the lateral direction, i.e., does not consider the center of intersection point and spiral case air inlet hole in above-below direction and front-rear direction Range difference, the two is overlapped in the lateral direction, in this way from the oil smoke that point of intersection is passed through largely can from from center into Enter in spiral case air inlet hole, and largely can be respectively from spiral case air inlet hole from the oil smoke air-flow that the left and right sides of deflector is passed through The left or right side of center enters in spiral case air inlet hole.Therefore, the intersection point of left side and right side and spiral case air inlet hole Center is overlapped in the lateral direction, and being conducive to will be in cooking fume guiding to spiral case air inlet hole.

In another case, the air inlet of the position of the intersection point of the left side and right side of deflector bottom end and kitchen ventilator Center be overlapped in the lateral direction, i.e., do not consider the center of intersection point and air inlet in above-below direction and front and back To range difference, the two is overlapped in the lateral direction, and the oil smoke entered in this way from the close center of air inlet largely can The point of intersection for flowing through deflector bottom end, the oil smoke entered from the left or right side of the center of air inlet can largely flow through The left side and right side of deflector bottom end.Therefore, the center of the intersection point and air inlet of left side and right side is in left and right It is overlapped on direction, is conducive to flow to air deflector from the oil smoke that air inlet enters, by deflector water conservancy diversion or shunting.

Optionally, the bottom end of the deflector is straight structure.

The bottom end of deflector is flat construction, can make deflector system easy to process under the premise of guaranteeing diversion effect It makes.

Optionally, at least side in the left and right sides of the deflector is equipped with opening, and the bottom of the spiral case is equipped with row Oilhole, the grease in the spiral case are expelled to the deflector by the outage, and via described in the deflector side Opening discharge.

The bottom of spiral case is equipped with outage, and the grease in such spiral case can be discharged from outage, since deflector setting exists The lower section of spiral case, therefore can be dropped on deflector from the grease that outage is discharged, then flow to the bottom end of deflector and edge The bottom end of deflector flow to the left and right；Since the side of deflector is equipped with opening, flowed in this way along the bottom end of deflector Grease can be finally discharged from opening, thus realize the grease in spiral case is discharged to outside spiral case.

Optionally, the bottom margin of the opening is equipped with notch, and/or, the edge of the opening is equipped with flange.

The bottom margin of the opening of deflector is equipped with notch, in order to which grease is dripped from indentation, there, discharge；The edge of opening Equipped with flange, the bootable grease flowing of flange is conducive to grease drippage.

Optionally, the indent highest point of the oil network is at a distance from the foreboard of the cabinet and back plate and the deflector Foreboard and back plate of the bottom end apart from the cabinet are equidistant, and the oil network is equipped with oil network air inlet hole.

The indent highest point of oil network and the bottom end of the deflector are in front-rear direction location matches, after oil smoke is entered by oil network Flowing to deflector, not only path is smooth, will not generate pneumatic deflecting, prevents air loss, and it is possible to prevente effectively from vortex, drop Low noise promotes smoke exhaust efficiency.

Optionally, the edge of the oil network is equipped with oil guide groove, and the opening of the deflector is located at the top of the oil guide groove, It is provided with oil dripping hole in the oil guide groove, lubricating cup is installed below the oil dripping hole.

The edge of oil network is equipped with oil guide groove, and oil guide groove can play the role of collection and guidance grease flowing, so as to grease It drips, is fallen into the lubricating cup of lower section from oil dripping hole.

Optionally, the bottom end of the deflector is equipped with rounding off structure, and the radius of the rounding off structure is kept not Become, alternatively, the radius of the rounding off structure is gradually increased along from the direction of middle part two sides to the left and right.

The bottom end of deflector is equipped with rounding off structure, and compared with cutting-edge structure is in bottom end, rounding off structure is alleviated Oil smoke flows to the turbulent flow effect generated when deflector bottom end, and reduces noise；The radius of rounding off structure can be along left and right Direction remains constant or changes that such as: when deflector bottom end is flat construction, the radius of rounding off structure can be protected Hold constant, when deflector bottom end is gradually got higher from two sides to its position of middle part, the radius of rounding off structure can be from middle part It is gradually increased to two sides, at this time the planform of deflector bottom end and the situation that oil smoke air-flow two sides flow velocity is slow, centre flow velocity is fast It is adapted, deflector is enable to play good water conservancy diversion noise reduction effect.

Optionally, the front and rear panels of the deflector and the spiral case are an integral structure.

The front and rear panels of deflector and spiral case are an integral structure, and are eliminated and are carried out the front and rear panel of deflector and spiral case The step of being connected and fixed simplifies assembly process；And integral structure makes being connected firmly for the front and rear panel of deflector and spiral case, Junction gapless.

Other features and advantages of the utility model will illustrate in the following description, also, partly from specification In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages can pass through Specifically noted structure is achieved and obtained in the specification, claims and drawings.

Detailed description of the invention

Attached drawing is used to provide to further understand technical solutions of the utility model, and constitutes part of specification, It is used to explain the technical solution of the utility model together with embodiments herein, not constitute to technical solutions of the utility model Limitation.

Fig. 1 is the structural schematic diagram of kitchen ventilator described in the utility model embodiment one；

Fig. 2 is the schematic cross-sectional view of kitchen ventilator shown in FIG. 1；

Fig. 3 is the enlarged diagram of the portion A structure in Fig. 2；

Fig. 4 is the structural schematic diagram of the component of spiral case and deflector in Fig. 1；

Fig. 5 is the schematic view of the front view of the component of spiral case shown in Fig. 4 and deflector；

Fig. 6 is the present invention looks up structural representation of the component of spiral case shown in Fig. 4 and deflector；

Fig. 7 is the schematic cross-sectional view of kitchen ventilator described in the utility model embodiment two；

Fig. 8 and Fig. 9 is the schematic perspective view of the component of spiral case and deflector in Fig. 7；

Figure 10 is that the stereochemical structure of the component of spiral case and deflector in kitchen ventilator described in the utility model embodiment three is shown It is intended to；

Figure 11 is the schematic view of the front view of the component of spiral case shown in Fig. 10 and deflector；

Figure 12 is the present invention looks up structural representation of the component of spiral case shown in Fig. 10 and deflector.

Wherein, the relationship in Fig. 1-Figure 12 between appended drawing reference and component names are as follows:

1 cabinet, 11 foreboards, 12 back plates, 13 advancing air channels, air intake passage after 14,2 spiral cases, 21 foreboards, 22 back plates, 23 Spiral case air inlet hole, 24 coaming plates, 25 spiral case exhaust vents, 3 deflectors, 31 left sides, 32 right sides, 33 openings, 34 notches, 35 turn over Side, 4 oil networks, 41 oil guide grooves, 42 oil network air inlet holes, 5 lubricating cups, 6 exhaust fume collecting hoods, 60 air inlets.

Specific embodiment

For the purpose of this utility model, technical solution and advantage is more clearly understood, below in conjunction with attached drawing to this The embodiment of utility model is described in detail.It should be noted that in the absence of conflict, embodiment in the application and Feature in embodiment can mutual any combination.

Embodiment one:

As shown in Figure 1, present embodiments providing a kind of kitchen ventilator, including cabinet 1 and spiral case 2, spiral case 2 is located in cabinet 1, Advancing air channel 13, the back plate 22 of spiral case 2 and the back plate of cabinet 1 are formed between the foreboard 21 of spiral case 2 and the foreboard 11 of cabinet 1 Rear air intake passage 14 is formed between 12.Correspondingly, it is equipped with spiral case air inlet hole 23 in the foreboard 21 of spiral case 2 and back plate 22, it is preceding Air intake passage 13 is connected to the spiral case air inlet hole 23 on foreboard 21, and rear air intake passage 14 connects with the spiral case air inlet hole 23 in back plate 22 It is logical.

Further, the lower section of spiral case 2 is equipped with the deflector 3 of V-arrangement, the rear and front end of deflector 3 foreboard with spiral case 2 respectively 21 and back plate 22 connect.Deflector 3 can be oriented to the cooking fume stream for entering cabinet 1, making an uproar when reducing kitchen ventilator work Sound.

Specifically, being equipped with exhaust fume collecting hood 6 from the bottom of kitchen ventilator, air inlet 60 is offered on exhaust fume collecting hood 6, from air inlet 60 The oil smoke of entrance first passes around deflector 3, and the front and rear sides plate guidance oil smoke of deflector 3 flows two sides forward and backward, in turn Advancing air channel 13 and rear air intake passage 14 are flowed into, is then entered back into spiral case 2, eventually by the spiral case exhaust vent on spiral case 2 25, the air outlet discharge on cabinet 1.By the water conservancy diversion of deflector 3, before enabling oil smoke smoothly to alter course and be smoothly introduced into Air intake passage 13 and rear air intake passage 14 reduce oil smoke and flow into turbulent flow during advancing air channel 13 and rear air intake passage 14 Formation, reduce kitchen ventilator work when noise.

Further, the bottom end of deflector 3 is at a distance from the foreboard 11 of cabinet 1 greater than the bottom end of deflector 3 and back plate 12 The distance between, the kitchen ventilator includes the oil network 4 positioned at 3 lower section of the deflector, and the oil network 4 is towards 3 side of deflector It concaves.

As shown in Figure 1, the distance between foreboard 11 of the bottom end of deflector 3 and cabinet 1 is a, the bottom end of flowing plate and cabinet 1 The distance between back plate 12 be b, a is greater than b, and oil network 4 is located at below deflector 3, and towards the 3 direction indent of deflector, makes The V-shaped configuration of the inverted V-shaped construction and deflector 3 that obtain oil network 4, which is formed, to be aligned, and the two combines the moulding to be formed similar to funnel, in wind Venturi acceleration effect can be formed on road flow path, promotes the smoke exhaust efficiency of oil smoke, and oil smoke has after the entrance of inverted V-shaped oil network 4 The guidance effect of two sides flowing forwards, backwards, reduces the choked flow crushing of deflector 3, and oil smoke smoothly enters along deflector front and rear sides Advancing air channel 13 and rear air intake passage 14 improve the smoking efficiency of kitchen ventilator.

Optionally, as shown in Fig. 2, Fig. 4 and Fig. 5, the bottom end of deflector 3 includes left side 31 and right side 32, left side 31 gradually tilt upwards along direction from left to right, and right side 32 gradually tilts upwards along the direction of right-to-left, so that The intersection point of left side 31 and right side 32 is located at intermediate position and position is higher, this and the oil smoke air-flow two sides for flowing through deflector 3 The fast situation of slow, the intermediate flow velocity of flow velocity is adapted, so that deflector 3 has preferably water conservancy diversion Noise Reduction.

Optionally, the intersection point of left side 31 and right side 32 is overlapped in the lateral direction with the center of air inlet 60. The center of intersection point and air inlet 60 in above-below direction and in the front-back direction range difference is not considered, the two is in left and right directions Upper coincidence, the oil smoke entered in this way from the close center of air inlet 60 can largely flow through the point of intersection of 3 bottom end of deflector, The oil smoke entered from the left or right side of the center of air inlet 60 can largely flow through the left side 31 of 3 bottom end of deflector With right side 32.Therefore, the intersection point of left side 31 and right side 32 is overlapped in the lateral direction with the center of air inlet 60, Be conducive to flow to from deflector 3 from the oil smoke that air inlet 60 enters, by 3 water conservancy diversion of deflector or shunting.

Optionally, as shown in figure 4, spiral case 2 further includes the coaming plate 24 being arranged between foreboard 21 and back plate 22, in coaming plate 24 The minimum point of bottom is equipped with outage (not shown), and the grease in such spiral case 2 can be discharged from outage, since deflector 3 is set It sets in the lower section of spiral case 2, therefore can be dropped on deflector 3 from the grease that outage is discharged.

Optionally, at least side in the left and right sides of deflector 3 is equipped with opening 33.As shown in figure 4, a left side for deflector 3 Right two sides are equipped with opening 33, and it is flowable to deflector 3 to drop onto the grease on deflector 3 from the outage of spiral case 2 in this way Bottom end, and being flowed to the left and right along the bottom end of deflector 3, and can be finally discharged from the opening 33 of two sides, thus realize by Grease in spiral case 2 is discharged to outside spiral case 2.

Optionally, 33 bottom margin of being open is equipped with notch 34, in order to which grease drips from notch 34, is discharged.

Optionally, the bottom end of deflector 3 is equipped with rounding off structure.Compared with cutting-edge structure is in bottom end, rounding off knot Structure alleviates oil smoke and flows to the turbulent flow effect generated when 3 bottom end of deflector, and reduces noise.

Optionally, the radius of rounding off structure is gradually increased along from the direction of middle part two sides to the left and right.Such as Fig. 4 and figure Shown in 6, the radius of the left side 31 of deflector 3 is gradually increased to the left from point of intersection, the radius of right side 32 from point of intersection to the right It is gradually increased.The bottom end of deflector 3, the point of intersection radius at middle part is minimum, is gradually increased from middle part to two sides radius, leads in this way The fast situation of slow, the intermediate flow velocity of the planform and oil smoke air-flow two sides flow velocity of 3 bottom end of flowing plate is adapted, and enables deflector 3 Play good water conservancy diversion noise reduction effect.

Optionally, as shown in figure 4, deflector 3 and the foreboard 21 and back plate 22 of spiral case 2 are an integral structure, such as deflector 3 Bending forming can be passed through with the foreboard 21 and back plate 22 of spiral case 2.

Deflector 3 and the foreboard 21 and back plate 22 of spiral case 2 are an integral structure, and eliminating will be before deflector 3 and spiral case 2 Back plate 21,22 is attached fixed step, simplifies assembly process；And before integral structure makes deflector 3 and spiral case 2 Back plate 21,22 is connected firmly, junction gapless.

As shown in Figure 1, at a distance from the foreboard 11 and back plate 12 of the indent highest point of the oil network 4 and the cabinet 1 and institute State being equidistant for foreboard 11 of the bottom end of deflector 3 apart from the cabinet 1 and back plate 12, the oil network 4 be equipped with oil network into Air holes 42.In front-rear direction location matches, oil smoke is entered by oil network 4 for the indent highest point of oil network 4 and the bottom end of the deflector 3 After flow to deflector 3 not only path be smooth, pneumatic deflecting will not be generated, prevent air loss, and it is possible to prevente effectively from be vortexed, Noise is reduced, smoke exhaust efficiency is promoted.Optionally, oil network 4 is recessed from air inlet 60 to 2 direction of spiral case, and oil network 4 is equipped with several Oil network air inlet hole 42 enters in cabinet 1 to flow through the oil network air inlet hole 42 in oil network 4 from the cooking fume that air inlet 60 enters.

Optionally, as shown in figure 3, the edge of oil network 4 is equipped with oil guide groove 41, further, the opening 33 of deflector 3, which is located at, to be led The top of oil groove 41, the notch 34 at the bottom margin for the opening for showing deflector 3 in Fig. 3 are located at the top of oil guide groove 41. Further, it is provided with oil dripping hole (not shown) in the oil guide groove, lubricating cup 5 is installed below oil dripping hole, to drip from oil dripping hole The grease fallen is fallen into lubricating cup 5.

The opening 33 of deflector 3 is located at the top of oil guide groove 41, in this way from the opening of deflector 3 33 (such as from notch 34) The grease of drippage can be fallen into oil guide groove 41；Oil guide groove 41 can play the role of collection and guidance grease flowing, so as to grease It drips, is fallen into the lubricating cup 5 of lower section from oil dripping hole.

Optionally, it is handled at the position of the outage of face spiral case 2 without aperture in oil network 4, to avoid grease drippage Onto hearth.

Embodiment two:

Present embodiments provide a kind of kitchen ventilator, the difference of the kitchen ventilator of the kitchen ventilator and embodiment one of the present embodiment It is: the structure of deflector 3.

As shown in figs. 7 to 9, in the present embodiment, the bottom end of deflector 3 is straight structure.

Further, the bottom end of deflector 3 is equipped with rounding off structure, and the radius of rounding off structure remains unchanged.

The bottom end of deflector 3 is flat construction, and bottom end is equipped with the rounding off structure that remains unchanged of radius, in this way can be with Under the premise of guaranteeing the diversion effect of deflector 3, keep deflector 3 easy to manufacture.

Optionally, the edge of the opening 33 of 3 side of deflector is equipped with flange 35.As shown in figs. 7 to 9, deflector 3 or so The edge of the opening 33 of two sides is equipped with flange 35, and flange 35 slightly tilts down, and the flowing of such flange 35 bootable grease has It is dripped from opening 33 conducive to grease.

Embodiment three:

Present embodiments provide a kind of kitchen ventilator, the difference of the kitchen ventilator of the kitchen ventilator and embodiment one of the present embodiment It is: the structure of deflector 3.

As shown in Figure 10-Figure 12, in the present embodiment, the left side 31 of 3 bottom end of deflector and intersection point and the snail of right side 32 The center of shell air inlet hole 23 is overlapped in the lateral direction.Do not consider the center of intersection point and spiral case air inlet hole 23 upper Lower direction and range difference, the two are overlapped in the lateral direction in the front-back direction.The oil smoke passed through in this way from point of intersection is most of It can be from entering in spiral case air inlet hole 23 from the center, and from the big portion of oil smoke air-flow that the left and right sides of deflector 3 32 is passed through Divide to enter in spiral case air inlet hole 23 from the left or right side of the center of spiral case air inlet hole 23 respectively.Therefore, left side 31 and the intersection point of right side 32 be overlapped in the lateral direction with the center of spiral case air inlet hole 23, be conducive to arrive cooking fume guiding In spiral case air inlet hole 23.

Although embodiment disclosed by the utility model is as above, the content only the utility model for ease of understanding And the embodiment used, it is not intended to limit the utility model.Technical staff in any the utility model fields, Under the premise of not departing from spirit and scope disclosed by the utility model, it can be carried out in the form and details of implementation any Modification and variation, but the scope of patent protection of the utility model, the appended claims that must still be subject to are defined.

Claims (10)

1. a kind of ideal kitchen ventilator of smoking efficiency, including cabinet and spiral case, the spiral case is located in the cabinet, the spiral case Foreboard and the cabinet foreboard between be formed with advancing air channel, between the back plate of the spiral case and the back plate of the cabinet It is formed with rear air intake passage, which is characterized in that the lower section of the spiral case is equipped with the deflector of V-arrangement, the front and back two of the deflector End is connect with the front and rear panels of the spiral case respectively, and the bottom end of the deflector is greater than institute at a distance from the foreboard of the cabinet Bottom end and the distance between the back plate of deflector are stated, the kitchen ventilator includes the oil network below the deflector, institute Oil network is stated towards deflector direction indent.

2. kitchen ventilator according to claim 1, which is characterized in that the bottom end of the deflector includes left side and right side Portion, the left side gradually tilt upwards along direction from left to right, the right side along right-to-left direction gradually Inclination upwards.

3. kitchen ventilator according to claim 2, which is characterized in that the spiral case has spiral case air inlet hole, the left side It is overlapped in the lateral direction with the intersection point of the right side with the center of the spiral case air inlet hole；

Alternatively, the kitchen ventilator has air inlet, the center of the intersection point and the air inlet of the left side and the right side Position is overlapped in the lateral direction.

4. kitchen ventilator according to claim 1, which is characterized in that the bottom end of the deflector is straight structure.

5. kitchen ventilator described in any one of -4 according to claim 1, which is characterized in that in the left and right sides of the deflector At least side is equipped with opening, and the bottom of the spiral case is equipped with outage, and the grease in the spiral case is expelled to by the outage The deflector, and be discharged via the opening of the deflector side.

6. kitchen ventilator according to claim 5, which is characterized in that the bottom margin of the opening is equipped with notch, and/or, The edge of the opening is equipped with flange.

7. kitchen ventilator according to claim 5, which is characterized in that before the indent highest point of the oil network and the cabinet Plate is at a distance from back plate and the bottom end of the deflector is apart from the cabinet foreboard and back plate are equidistant, in the oil network Equipped with oil network air inlet hole.

8. kitchen ventilator according to claim 7, which is characterized in that the edge of the oil network is equipped with oil guide groove, the water conservancy diversion The opening of plate is located at the top of the oil guide groove, and oil dripping hole is provided in the oil guide groove, is equipped with oil below the oil dripping hole Cup.

9. kitchen ventilator described in any one of -4 according to claim 1, which is characterized in that the bottom end of the deflector is equipped with round and smooth The radius of transition structure, the rounding off structure remains unchanged；Alternatively, the radius of the rounding off structure is along from middle part The direction of two sides is gradually increased to the left and right.

10. kitchen ventilator described in any one of -4 according to claim 1, which is characterized in that the deflector and the spiral case Front and rear panels are an integral structure.