CN207230681U - A kind of range hood - Google Patents

Abstract

The utility model discloses a kind of range hood, including exhaust fume collecting hood, the cabinet being arranged on above exhaust fume collecting hood and the wind turbine being arranged in cabinet, air inlet is offered on the exhaust fume collecting hood, formed with air passage in the cabinet, the wind turbine is ternary wind turbine, the inlet of bottom, air passage in the cabinet is provided with strainer, and the strainer includes the strainer body in up-small and down-big back taper, mesh is densely covered with the strainer body.By the strainer for setting concave back taper upwards, the distance with wind turbine can be shortened, close to strong negative pressuren zone, so that oil smoke is into fashionable, directly by strong suction function, so as to substantially increase air draught effect, flow field upper air inlet is smooth, do not influence the suction of range hood, avoid the occurrence of run oil smoke it is more, leakage suction phenomenon；Strainer is in following peripheral is low, middle height, and such oil smoke is in concentrated when absorbing, it is possible to increase the collection efficiency of greasy dirt；In addition, collection cigarette is deep, oil smoke is absorbed with not stopping deeply.

Description

A kind of range hood

Technical field

Machine for kitchen use is the utility model is related to, especially a kind of range hood.

Background technology

Range hood becomes one of machine for kitchen use equipment indispensable in Modern Family.Usual range hood includes top Suction and near-absorption type, the range hood of top suction type utilize the principle that hot gas rises, and suction is caused when cooking to be risen naturally Oil smoke, additionally due to it is clean and tidy light and handy, occupy little space the advantages that, it is and in an increasingly wide range of applications.

Existing range hood, can be provided with filter screen for the purpose of collecting the oil smoke produced in culinary art, flue dust etc., And in order to prevent fumes escaping and be provided with smoke deflector.It is a kind of as disclosed in the Chinese patent of Application No. 201420478328.X Top-sucking kitchen ventilator with smoke deflector, including exhaust fume collecting hood and smoke deflector, exhaust fume collecting hood are equipped with air inlet, smoke deflector face collection cigarette The air inlet of cover is set, and smoke deflector and exhaust fume collecting hood keep predetermined spacing and form oil smoke passage, the air inlet of exhaust fume collecting hood Oil network is additionally provided with, oil network is fixed on the air inlet of exhaust fume collecting hood by buckle or screw, and smoke deflector is located at the lower section of oil network；Again A kind of range hood for lifting adjusting air inlet face as disclosed in the Chinese patent of Application No. 201410443175.X, including wind Cabinet and the exhaust fume collecting hood for being placed in wind cabinet bottom, wind cabinet is including frame and is built in the host that can be lifted in frame and along frame, host Including the square body in cross section and intrinsic turbofan is placed in, body all round closure, the bottom opening of body is simultaneously Equipped with taper guard, taper guard bottom is provided with lubricating cup；And for example the Chinese patent of Application No. 201610642513.1 discloses A kind of bionical filter screen on range hood, which is arranged on the cage petticoat pipe of the host lower end of range hood Place, and the blower fan system equipped with air outlet is installed in the air inlet of lubricating cup upper end, host, bionical filter screen is upper big Under small or up-small and down-big cone or the metal thin shell of rectangular cone or square pyramid.

Above-mentioned range hood, the smoke deflector for being arranged on the air inlet of range hood is in flat condition, and smoke deflector can not be right Oil smoke plays the role of drainage, accelerates, it is difficult to effectively lifts smoke absorption effect, and cowling panel relative position is fixed, negative pressuren zone It cannot be adjusted according to the service condition of hearth.Oil network generally use flat condition or under convex funnel-form, the oil network of flat condition The characteristics of diet that is not suitable in pot more oiliness, easy oil dripping；Dash forward downwards the bottom that funnelform oil network is fixed on range hood Go out, when cooking fume-collecting is in divergence form, and collection cigarette is shallow, and oil smoke cannot be absorbed deeply, and away from blower negative pressure area, influences fume-exhausting effect Fruit, and user using when have vision sense of depression, culinary art when hinder sight, top pot cooking when, easily touch oil network, reduce and use The culinary art experience sense at family；In addition, when using funnelform oil network, then range hood can not set smoke deflector again.

Utility model content

Technical problem to be solved in the utility model is in view of the above-mentioned problems of the prior art, providing a kind of improve The range hood of fume-exhausting efficiency and oil separation effect.

Technical solution is used by the utility model solves above-mentioned technical problem：A kind of range hood, including exhaust fume collecting hood, The wind turbine for being arranged on cabinet above exhaust fume collecting hood and being arranged in cabinet, offers air inlet, the cabinet on the exhaust fume collecting hood It is interior formed with air passage, it is characterised in that：The wind turbine is ternary wind turbine, and the inlet of bottom, air passage in the cabinet is set There is strainer, the strainer includes the strainer body in up-small and down-big back taper, mesh is densely covered with the strainer body.

For ease of collecting the grease of cabinet, wind turbine and strainer itself, the edge of the strainer body stretch out formed with Cricoid oil trap, the outer edge of the oil trap are extended to outside the bottom of cabinet and are folded upward at.

To avoid the grease in oil trap from overflowing, the oil-collecting slot part on rear side of strainer body offers the first oil dripping Hole, first oil dripping hole are located above smoke deflector.

For accelerate oil smoke flow velocity, improve fume-exhausting efficiency, the smoke deflector lower surface at least a portion be in from centre to Edge is gradually inclined upwardly, thus wall corresponding to exhaust fume collecting hood coordinate and limit it is that cross section from the bottom to top gradually decreases plus Fast runner.

Preferably, effectively to be accelerated to the oil smoke on smoke deflector periphery, the lower surface of the smoke deflector includes first At least one in inclined-plane, the second inclined-plane and the 3rd inclined-plane, first inclined-plane is tilted upward to the left by centre and exhaust fume collecting hood Left plate between form the first acceleration channels, second inclined-plane by it is middle tilt upward to the right, the right side with exhaust fume collecting hood The second acceleration channels are formed between plate, the 3rd inclined-plane is from centre to front side towards between inclination and the front side board of exhaust fume collecting hood Form the 3rd acceleration channels.

Preferably, to further improve the acceleration of acceleration channels, the interior table of the left plate, right plate and front side board Face is also in gradual intilted inclined-plane from the bottom to top.

Further, it is respectively arranged with company for ease of the installation of smoke deflector, four corners of the upper surface of the smoke deflector Column is connect, the connecting pole is connected to the outer edge of the air inlet of exhaust fume collecting hood, so that smoke deflector be connected with exhaust fume collecting hood.

To allow smoke deflector according to the big minor adjustment of oil smoke height, preferably to improve smoke absorption effect, while Smoke deflector can be raised to extreme higher position and close air inlet when range hood is closed, and avoid the oil vapor backstreaming of common flue, described Connecting pole is by motor-driven telescopic rod.

For ease of collecting the grease of grease and smoke deflector itself from strainer drippage, the rear side lower section of the exhaust fume collecting hood Lubricating cup is provided with, the rear end of the smoke deflector offers the second oil dripping hole, and second oil dripping hole is located at the top of lubricating cup.

To cause oil smoke with minimum flow velocity by rotary sieve, the time to contact with each other between the two is longer, so as to reach To preferable filter effect, the air passage is in diminishing shape from the bottom to top.

Compared with prior art, the utility model has the advantage of：By setting the strainer of concave back taper upwards, energy Enough distances shortened with wind turbine, close to strong negative pressuren zone so that oil smoke is into fashionable, directly by strong suction function, so as to greatly improve Air draught effect；By setting the smoke deflector with inclined lower surface, oil smoke acceleration channels are collectively formed with exhaust fume collecting hood, can be increased The amount inside range hood is entered in the oil smoke unit interval, lifts smoke absorption effect；Pass through the filter of upward concave back taper Net and the smoke deflector with inclined lower surface, when oil smoke ascending air passes through smoke deflector, can produce separated whirlpool, can subtract It is slow to reduce negative pressure and the loss of corner since fluid velocity caused by sudden expansion declines suddenly, under convex smoke deflector and convex Oil network form small, the broad in the middle runner in a periphery so that collection cigarette is deeper, increase the volume of oil smoke cage cigarette, collect Soot gas, also increase the contact area of oil smoke and oil network, improve filter effect, lift grease separating degree, are also beneficial to The strong suction function of import of ternary wind turbine is given full play to, reduces inner air venturi effect, gas is reduced by reducing turbulent flow Flow noise.

Brief description of the drawings

Fig. 1 is the schematic diagram of the range hood of the utility model；

Fig. 2 is the front section view of the range hood of the utility model；

Fig. 3 is the side sectional view of the range hood of the utility model；

Fig. 4 is the schematic diagram of the smoke deflector of the range hood of the utility model；

Fig. 5 is the schematic diagram of the strainer of the range hood of the utility model.

Embodiment

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

Referring to Fig. 1~Fig. 3, a kind of range hood, including exhaust fume collecting hood 1, the cabinet 2 for being arranged on the top of exhaust fume collecting hood 1, cabinet 2 Inside it is provided with blower fan system 4.Air inlet 11 is offered on exhaust fume collecting hood 1, thus, the blower fan system 4 in cabinet 2 can aspirate oil smoke Common flue is discharged into after entering cabinet 2 by air inlet 11.

Cabinet 2 includes left side wall 21, right side wall 22, front side wall 23 and rear wall 24, the cavity shape between above-mentioned each side wall Into the air passage 25 of oil smoke air-flow, air passage 25 is preferably gradually reduced from the bottom to top.

In the present embodiment, blower fan system 4 is ternary wind turbine, and ternary wind turbine can use the prior art, such as Application No. 201310418009.X Chinese patent disclosed in.Blower fan system 4 can be single ternary wind turbine, two ternarys in parallel Wind turbine or the ternary wind turbines of two series connection, since ternary wind turbine has, compact-sized, size is relatively small, fan efficiency and wind pressure The characteristics of high, the suction gradient that can be produced is big, can be so that smoking efficiency is significantly lifted.The top of cabinet 2 is provided with and wind turbine The outlet housing 5 of the air outlet connection of system 4, so that by outlet housing 5, can be drained into common flue by oil smoke.

It is located at the top of smoke collecting chamber 12, smoke collecting chamber 12 formed with concave up smoke collecting chamber 12, air inlet 11 in exhaust fume collecting hood 1 Interior, opposite with air inlet 11 position is provided with smoke deflector 8, and first passing through smoke deflector 8 before oil smoke enters range hood carries out Filtration treatment is condensed, carries out first time oil smoke separation.With reference to Fig. 5, the cross section of the shape of smoke deflector 8, size and smoke collecting chamber 12 Essentially coincide.

Lower surface at least a portion of smoke deflector 8 in being gradually inclined upwardly from centre to edge, thus with the phase of exhaust fume collecting hood 1 Wall is answered to coordinate and limit the acceleration channels that cross section from the bottom to top gradually decreases.When oil smoke flows to and lead from the bottom to top cigarette During the lower surface contact of plate 8, using Coanda effect, oil smoke is guided to horizontal direction shunting, then from the edge of smoke deflector 8 It imported into acceleration channels, then up flows between the upper surface of smoke deflector 8 and exhaust fume collecting hood 1 in the chamber formed, finally Entered by air inlet 11 in cabinet 2.

Due to acceleration channels, cross section is gradually reduced from bottom to top, after oil smoke enters acceleration channels, flow velocity can be continuous Ground increases, and the suction of oil smoke is also accordingly increased, is separated so that oil smoke can rapidly enter inside cabinet 2, And then improve the oil suction smoke in the range hood unit interval.

With reference to Fig. 4, the lower surface of smoke deflector 8 can with all inclined-planes, can also a part be inclined-plane, another part be flat Face.Inclined-plane can be inclined plane or arcwall face.In the present embodiment, the lower surface of smoke deflector 8 includes the first inclined-plane 81, the It is at least one in two inclined-planes 82 and the 3rd inclined-plane 83, wherein, the first inclined-plane 81 is tilted upward to the left by centre, with exhaust fume collecting hood The first acceleration channels 84 are formed between 1 left plate 13, the second inclined-plane 82 is tilted upward to the right by centre, with exhaust fume collecting hood 1 The second acceleration channels 85 are formed between right plate 14, the 3rd inclined-plane 83 is tilted from centre to front side direction, the front side with exhaust fume collecting hood 1 The 3rd acceleration channels 86 are formed between plate 15.Each inclined-plane forms the complete lower surface of smoke deflector 8.In addition, above-mentioned left plate 13rd, the inner surface of right plate 14 and front side board 15 (one side towards in smoke collecting chamber 12) can also be in gradually lean-in from the bottom to top Oblique inclined-plane.

Thus, by setting acceleration channels to realize drainage and acceleration work to oil smoke between exhaust fume collecting hood 1 and smoke deflector 8 With so as to improve the smoking oil mass in the range hood unit interval.And above-mentioned this smoke deflector 8 is combined with blower fan system 4, by In above-mentioned possessed by ternary wind turbine the characteristics of, the effect of fume-exhausting can be significantly further lifted.

Four corners of 8 upper surface of smoke deflector are respectively arranged with connecting pole 87, be connected to exhaust fume collecting hood 1 air inlet 11 it is outer Edge, so that smoke deflector 8 be connected with exhaust fume collecting hood 1, connecting pole 87 can be fixed rod piece, or by motor-driven Telescopic rod, telescopic rod can use the prior art, so that smoke deflector 8 can be according to the big minor adjustment height of oil smoke, with preferably Smoke absorption effect is improved, while smoke deflector 8 can be raised to extreme higher position and close air inlet 11 when range hood is closed, and avoid The oil vapor backstreaming of common flue.

In cabinet 2, strainer 6 is provided with positioned at the lower section of blower fan system 4, and strainer 6 is arranged on above-mentioned each silencing apparatus Lower section, the bottom in cabinet 2.That is, strainer 6 is arranged on the inlet in above-mentioned air passage 25, in air passage 25 to oil Before cigarette accelerates, strainer 6 can come into full contact with oil smoke, realize preferable filter effect.Referring to Fig. 5, strainer 6 include present it is small under The strainer body 61 of big back taper, is densely covered with mesh 62 on strainer body 61, the edge of strainer body 61 stretches out to be formed There is cricoid oil trap 63, the outer edge of oil trap 63 is folded upward at and extends to outside the bottom of cabinet 2.

By setting the strainer 6 of concave back taper upwards, the distance with blower fan system 4 can be shortened, close to strong negative pressure Area so that oil smoke is into fashionable, directly by strong suction function, so as to substantially increase air draught effect.Flow field upper air inlet is smooth, not shadow Ring range hood suction, avoid the occurrence of run oil smoke it is more, leakage suction phenomenon；Strainer 6 is in following peripheral is low, middle height, such oil smoke It is in concentrated during absorption, it is possible to increase the collection efficiency of greasy dirt；In addition, collection cigarette is deep, oil smoke is absorbed with not stopping deeply, and by The following peripheral of strainer 6 carries out oil-collecting, more convenient that fluid is collected easy to the flowing of oil-collecting, avoids the drippage of oil droplet.

The first oil dripping hole 64 (above smoke deflector 8) is offered positioned at 63 part of oil trap of the rear side of strainer body 61, The rear end of smoke deflector 8 offers the second oil dripping hole 88, is provided with lubricating cup 7 below the rear side of exhaust fume collecting hood 1, the second oil dripping hole 88 is located at The top of lubricating cup 5, thus can receive the oil trap 63 in strainer 6 from the grease of 6 themselves capture of cabinet 2, blower fan system 4 and strainer It is interior, and the upper surface of smoke deflector 8 is dropped onto from the first oil dripping hole 64, hereafter dripped from the second oil dripping hole 88 of the rear end of smoke deflector 8 Fall in lubricating cup 7, to avoid pollution hearth or cooker.

Claims (10)

1. a kind of range hood, including exhaust fume collecting hood (1), the cabinet (2) that is arranged on above exhaust fume collecting hood (1) and it is arranged on cabinet (2) Interior blower fan system (4), offers air inlet (11) on the exhaust fume collecting hood (1), formed with air passage (25) in the cabinet (2), It is characterized in that：The blower fan system (4) is ternary wind turbine, and the inlet of bottom, air passage (25) in the cabinet (2) is set There is a strainer (6), the strainer (6) includes the strainer body (61) in up-small and down-big back taper, on the strainer body (61) It is densely covered with mesh (62).

2. range hood according to claim 1, it is characterised in that：The edge of the strainer body (61) stretches out shape Into there is cricoid oil trap (63), the outer edge of the oil trap (63) is extended to outside the bottom of cabinet (2) and is bent up Folding.

3. range hood according to claim 2, it is characterised in that：Oil trap (63) on rear side of strainer body (61) Part offers the first oil dripping hole (64), and first oil dripping hole (64) is located above smoke deflector (8).

4. range hood according to claim 1, it is characterised in that：Smoke deflector is provided with below air inlet (11) (8), the smoke deflector (8) lower surface at least a portion in be gradually inclined upwardly from centre to edge, thus with exhaust fume collecting hood (1) Corresponding wall coordinate and limit the acceleration channels that cross section from the bottom to top gradually decreases.

5. range hood according to claim 4, it is characterised in that：It is oblique that the lower surface of the smoke deflector (8) includes first At least one in face (81), the second inclined-plane (82) and the 3rd inclined-plane (83), first inclined-plane (81) is by middle court to the left The first acceleration channels (84) are formed between upper inclination and the left plate (13) of exhaust fume collecting hood (1), second inclined-plane (82) is by centre Tilt upward to the right and form the second acceleration channels (85), the 3rd inclined-plane between the right plate (14) of exhaust fume collecting hood (1) (83) the 3rd acceleration channels (86) are formed to front side towards between inclination and the front side board (15) of exhaust fume collecting hood (1) from centre.

6. range hood according to claim 5, it is characterised in that：The left plate (13), right plate (14) and front side The inner surface of plate (15) is also in gradual intilted inclined-plane from the bottom to top.

7. range hood according to claim 4, it is characterised in that：Four corners of the upper surface of the smoke deflector (8) Connecting pole (87) is respectively arranged with, the connecting pole (87) is connected to the outer edge of the air inlet (11) of exhaust fume collecting hood (1), so that will Smoke deflector (8) is connected with exhaust fume collecting hood (1).

8. range hood according to claim 7, it is characterised in that：The connecting pole (87) is by motor-driven flexible Bar.

9. range hood according to claim 4, it is characterised in that：Oil is provided with below the rear side of the exhaust fume collecting hood (1) Cup (7), the rear end of the smoke deflector (8) offer the second oil dripping hole (88), and second oil dripping hole (88) is located at lubricating cup (7) Top.

10. according to range hood according to any one of claims 1 to 3, it is characterised in that：The air passage (25) be in by down toward Upper diminishing shape.