CN209639076U - A kind of kitchen ventilator main tank structure and kitchen ventilator - Google Patents

Abstract

The utility model relates to a kind of kitchen ventilator main tank structure and kitchen ventilators, including main tank and spiral case, the main tank includes foreboard, back plate and top plate, the spiral case includes the flange at the top of coaming plate and coaming plate, the two sides of the coaming plate are fixedly connected with the front and rear panels respectively, the top of the front and rear panels and the flange of spiral case are fixedly connected with the top plate, exhaust outlet corresponding with spiral case top outlet inlet is provided on the top plate, the foreboard and/or back plate are fixedly connected with the housing on the outside of main tank.It is more firm that the utility model not only makes the structure of main tank and spiral case, while decreasing the quantity of components, simplifies the structure and manufacturing process of kitchen ventilator, saves material and manufacturing cost.

Description

A kind of kitchen ventilator main tank structure and kitchen ventilator

Technical field

The utility model belongs to kitchen household electrical appliance technical field, in particular to a kind of kitchen ventilator main tank structure and oil smoke Machine.

Background technique

Kitchen ventilator provides a kind of technological means for purification kitchen environment, and is used widely in family kitchen.By It is generally larger in Chinese user kitchen environment oil smoke, so kitchen ventilator use condition is more severe, and with modern life water Flat raising, requirement of the user to kitchen ventilator are also higher and higher.Firstly, kitchen ventilator performance needs to meet the basal needs of user, I.e. big wind pressure and Wind Volume；Secondly, the user experience to have had, low noise；Finally, to guarantee product in the environment of heavy oil dirt Quality.Under conditions of meeting these performances, seek it is a kind of more firm, while also can save the cost complete machine structure, be urgently Problem to be solved.

As depicted in figs. 1 and 2, current kitchen ventilator is mainly made of smoke collecting chamber 1, oil network 2 and air duct assembly, air duct assembly Include then the components such as spiral case 3, motor 4, impeller 5, main tank 6, one layer of housing 7 is installed again in the outside of main tank 6, air-flow passes through collection It is directly entered air duct after smoke chamber 1, oil network 2, is discharged from the exhaust outlet 10 at the top of air duct.Wherein, spiral case 3 is by front side board, back side panel And coaming plate is welded to form, impeller 5 is mounted in spiral case 3.Main tank 6 is made of the coaming plate of two sides, back plate and top plate, after spiral case 3 Side plate is fixed in the back plate of main tank 6 by spiral case bracket 8, and motor 4 is fixed on the back side panel of spiral case 3 by electric machine support 9, Motor 4 is accommodated in the inside of impeller 5, installs oil-guiding element in the lower section of spiral case 3.The range hood structure is complicated, amount of parts compared with More, manufacturing process is complicated, and material and manufacturing cost are higher, and whole structural stability is poor, simultaneously because main tank and spiral case There are biggish gap between composition, the presence in this gap is also easy to produce noise and vibration, reduces user experience.

Utility model content

The utility model mainly solving the technical problems that, provide that a kind of structure process is simple, oil smoke owner at low cost Box structure, while a kind of kitchen ventilator for being equipped with the main tank structure being provided.

To achieve the above object, the technical solution of the utility model is:

A kind of kitchen ventilator main tank structure, including main tank and spiral case, the main tank include foreboard, back plate and top plate, the snail Shell includes the flange at the top of coaming plate and coaming plate, and the two sides of the coaming plate are fixedly connected with the front and rear panels respectively, described The top of front and rear panels and the flange of spiral case are fixedly connected with the top plate, are provided on the top plate and are gone out at the top of spiral case The corresponding exhaust outlet in air port, the foreboard and/or back plate are fixedly connected with the housing on the outside of main tank.

Further, the cross section of the foreboard is U-shaped, is extended forwards by the first intermediate mainboard, the first mainboard two sides The first side plate and top the first flange composition, first flange is fixedly connected by fastener with top plate.

Further, first side plate bottom of two sides has the stretching extended downwardly relative to the first intermediate mainboard Portion, the extension are fixedly connected with the deflector installed below spiral case.

Further, the cross section of the back plate is U-shaped, is rearward extended by the second intermediate mainboard, the second mainboard two sides The second side plate, top the second flange composition, second flange is fixedly connected by fastener with top plate.

Further, extend downwardly a horizontally extending installation side in the bottom of the back plate, the installation side with Deflector below spiral case is fixedly connected.

Further, it is provided with the groove being recessed to spiral case direction in the back plate, kitchen ventilator is installed in the groove Motor.

Further, filled with sound absorption and vibration damping in the gap between the coaming plate of the foreboard of the main tank, back plate and spiral case Material.

Further, the junction of the coaming plate and front and rear panels applies and breaks sealant.

Further,

Another technical solution of the utility model is:

A kind of kitchen ventilator includes main tank structure as described above.

In conclusion a kind of kitchen ventilator main tank structure provided by the utility model and kitchen ventilator, using main tank back plate and Back side panel and front side board of the foreboard as spiral case, are omitted the structure of the front and back side plate of spiral case in the prior art, while also omitting The structure of two lateral coaming plates of main tank in the prior art, while after spiral case no longer needs spiral case bracket and electric machine support and main tank Plate and motor are fixedly mounted, and it is more firm not only to make the structure of main tank and spiral case, while decreasing the quantity of components, letter The structure and manufacturing process for having changed kitchen ventilator, save material and manufacturing cost.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of kitchen ventilator in the prior art；

Fig. 2 is the Structure explosion diagram of spiral case and main tank in the prior art；

Fig. 3 is the utility model range hood structure schematic diagram；

Fig. 4 is the utility model kitchen ventilator back structures schematic diagram；

Fig. 5 is that the utility model kitchen ventilator removes the structural schematic diagram after housing；

Fig. 6 is the utility model air duct assembly structure schematic diagram；

Fig. 7 is the utility model main tank structural schematic diagram；

Fig. 8 be the utility model installation motor after main tank and spiral case structural schematic diagram；

Fig. 9 is the utility model deflector structure schematic diagram；

Figure 10 is the utility model electric machine structure schematic diagram.

As shown in Figures 1 to 10, smoke collecting chamber 1, oil network 2, spiral case 3, coaming plate 31, flange 32, motor 4, outer rotor 41, stator 42, motor shaft 43, fixing screwed hole 44, positioning pin 45, connection screw thread 46, impeller 5, main tank 6, foreboard 61, the first mainboard 611, First side plate 612, the first flange 613, lateral flange 614, extension 615, back plate 62, the second mainboard 621, the second side plate 622, the Two flange 623, install side 624, top plate 63, and housing 7 installs side 71, spiral case bracket 8, electric machine support 9, exhaust outlet 10, outlet housing 11, check (non-return) valve 12, deflector 13, upper plate 131, lower side panel 132, bottom plate 133, flange 134, reinforcement groove 135, wind output channel 14, air outlet 15, air inlet ring 16, connecting plate 17, installation part 18, mounting plate 19, installation card slot 20, depressed section 21, oil leakaging port 22, extension 23, protection cap 24, groove 25, electric-controlled box 26, engaging protrusion 27, access panel 28, sound absorption and damping material 29。

Specific embodiment

The utility model is described in further detail with specific embodiment with reference to the accompanying drawing:

Embodiment one:

As shown in Figure 3 and Figure 4, a kind of kitchen ventilator, including smoke collecting chamber 1, oil network 2 and air duct assembly are present embodiments provided, Air duct assembly integral installation is in the top of smoke collecting chamber 1, and in air duct, exhaust outlet 10 is arranged in the top of assembly.It is logical to cook the oil smoke generated It is directly entered air duct assembly after crossing smoke collecting chamber 1, oil network 2, is finally discharged from the exhaust outlet 10 at the top of the assembly of air duct.In exhaust outlet 10 Place is equipped with outlet housing 11, and check (non-return) valve 12 is equipped in outlet housing 11, prevents the flue gas in flue from flowing backward.

Air duct assembly includes spiral case 3, motor 4, impeller 5, main tank 6 and housing 7, and housing 7 is mounted on the outside of main tank 6, is risen To the effect of protection and decoration, impeller 5 is mounted on the inside of spiral case 3, and motor 4 drives impeller 5 to rotate, main tank 6 and 7 sum aggregate of housing The shell of smoke chamber 1 is fixedly connected.

As shown in Fig. 5, Fig. 6, Fig. 7 and Fig. 8, in the present embodiment, main tank 6 is made of foreboard 61, back plate 62 and top plate 63.Top Plate 63 is fixedly connected by screw with the top of foreboard 61 and back plate 62, and exhaust outlet 10 is opened up on top plate 63, and outlet housing 11 is solid Dingan County is on top plate 63.The "front", "rear" can be relative in kitchen ventilator mounting plane (such as metope) vertical direction Front and back, be also possible to relative to the front and back in mounting plane parallel direction.

Spiral case 3 is made of front side board, back side panel, the coaming plate 31 of centre and the flange 32 at top, in the present embodiment, by main tank 6 back plate 62 and the back side panel of spiral case 3 are integrated, i.e., using the back plate 62 of main tank 6 as the back side panel of spiral case 3, meanwhile, it will The foreboard 61 and the front side board of spiral case 3 of main tank 6 are integrated, i.e., using the foreboard 61 of main tank 6 as the front side board of spiral case 3, snail The coaming plate 31 of shell 3 is mounted between the back plate 62 of main tank 6 and foreboard 61, common by the back plate 62 of main tank 6, foreboard 61 and coaming plate 31 Spiral case is formed, air inlet ring 16 is installed by screw on the foreboard 61 of main tank 6.The top plate 63 of main tank 6 passes through screw and method simultaneously Orchid 32 is fixedly connected, and the air outlet 15 of the exhaust outlet 10 on top plate 63 and spiral case 3 is correspondingly arranged.

By welding or by detachable between coaming plate 31 in spiral case 3 and the back plate 62 and foreboard 61 of main tank 6 Mode be fixedly connected.In the present embodiment, it is preferable that be fixedly connected by welding between coaming plate 31 and back plate 62, coaming plate It is fixedly connected between 31 and foreboard 61 by dismountable mode, both can be convenient disassembly repair and maintenance in this way, it is also ensured that The overall structural strength of spiral case 3.Meanwhile in order to facilitate the dismounting between coaming plate 31 and foreboard 61, in the present embodiment, in coaming plate 31 Side on interval be arranged several engaging protrusions 27, engaging protrusion 27 be outwardly projecting strip structure, with coaming plate 31 Between be wholely set or be welded to connect, several bayonet (not shown)s are correspondingly arranged on foreboard 61.It will engaging when assembling The corresponding bayonet on foreboard 61 of protrusion 27, then breaks engaging protrusion 27 to side curved, and then coaming plate 31 is secured to master On the foreboard 61 of case 6.Oil leak inside spiral case in order to prevent, the junction between coaming plate 31 and foreboard 61, which applies, plays sealant sealing Connection.Certainly, above-mentioned mounting structure can also be used between coaming plate 31 and back plate 62, after spiral case coaming plate 31 and main tank 6 Gluing seals between plate 62.Also the structure that flange can be set between coaming plate 31 and back plate 62 and foreboard 61 connects by the way that screw is fixed It connects.

The U-shaped profile of the foreboard 61 of main tank 6, forwards by the first intermediate mainboard 611,611 two sides of the first mainboard The first flange 613 composition of the first side plate 612 and top that extend, the first flange 613 are fixedly connected with top plate 63 by screw. First mainboard 611, the first side plate 612 and first flange 613 at top are formed by metal plate one bending.In the first side plate 612 Front end be fixedly connected with one piece of access panel 28, removed in repair and maintenance.It is surrounded by foreboard 61, top plate 63 and access panel 28 The wind output channel 14 of kitchen ventilator.The front end of first side plate 612 has the lateral flange 614 to center bending, the cross of lateral flange 614 Section is L-shaped, and access panel 28 is fixedly connected in lateral flange 614 by screw, by access panel 28 when maintenance convenient to overhaul It removes.The all or part of front opening for covering foreboard 61 of access panel 28, housing 7 are close to access panel 28 and are installed, access cover Plate 28 is conducive to improve the structural strength of main tank 6, while the also daily dimension easy to disassemble conducive to components such as internal impeller 5, spiral cases 3 Shield and maintenance.

The lower section of access panel 28 is provided with connecting plate 17, and connecting plate 17 can be used for blocking the sky of 28 lower section of access panel Gap, while the connection between 1 shell of foreboard 61 and smoke collecting chamber is also provided, the both ends of connecting plate 17 and two rollovers of foreboard 61 It is fixedly connected between side 614 by screw, the bottom edge of connecting plate 17 is fixedly connected with the shell of smoke collecting chamber 1 by screw simultaneously. One dismountable installation part 18 in a ring can also be set around the smoke inlet of wind output channel 14, between installation part 18 and shell It is fixedly connected by screw, while being fixedly connected between connecting plate 17 and installation part 18 by screw, it is easy to disassemble.

The bottom of two the first side plates 612 has relative to the first intermediate mainboard 611 extends downwardly stretching for certain length Portion 615 out form the connecting interface with deflector 13, are fixedly connected with deflector 13.

62 cross section of back plate of main tank 6 is similarly U-shaped, backward by the second intermediate mainboard 621,621 two sides of the second mainboard The second side plate 622 of Fang Yanshen and the second flange 623 composition at top, the second flange 623 connect with top plate 63 by the way that screw is fixed It connects.

As shown in figure 4, the cross section of housing 7 is U-shaped, front end face closure, rear end face opening, in the both sides of the edge of opening With to the installation side 71 of center bending.It is fixedly connected between installation side 71 and the second side plate 622 by screw, and then by housing It is fixedly connected between 7 and main tank 6.

The bottom of back plate 62 extends downwardly out horizontally extending installation side 624, and deflector 13 and installation side 624 are logical Screw is crossed to be fixedly connected.Installation side 624 is in the structure to bend inwards, to avoid the oil guide groove of lower section being arranged on smoke collecting chamber 1 Etc. structures be fixedly connected with deflector 13.Second mainboard 621, the second side plate 622, second flange 623 at top and installation side 624 It is formed by metal plate one bending.

Being fixedly connected between main tank 6 and housing 7 is determined in order to firm, and the open side of housing 7 is provided with a lateral peace Loading board 19, can weld between 19 both ends of mounting plate and housing 7 can screw connection, mounting plate 19 passes through screw or rivet and main tank again 6 back plate 62 is fixedly connected by transition piece.Also there is installation card slot 20, the bottom of housing 7 on the shell of smoke collecting chamber 1 Fixed in portion's insertion installation card slot 20, installation card slot 20 plays the role of limit to housing 7.

As shown in Fig. 3, Fig. 5 and Fig. 8, deflector 13 is tiltedly mounted between spiral case 3 and smoke collecting chamber 1, in the present embodiment, is led Flowing plate 13 is made of the bottom plate 133 of upper plate 131, the lower side panel 132 of two sides and rear end.Upper plate 131 tilts down from the front to the back Setting, lower side panel 132 and bottom plate 133 are extended vertically down relative to upper plate 131, lower side panel 132 and the foreboard 61 of two sides The extension 615 that two the first side plates 612 extend downwardly is fixedly connected by screw, lower side panel 132 while the shell with smoke collecting chamber 1 Body or above-mentioned installation part 18 are fixedly connected, and bottom plate 133 is solid by screw by the installation side 624 of screw and 62 bottom of back plate The front end of fixed connection, the upper plate 131 of deflector 13 has upward flange 134, the first mainboard of flange 134 and foreboard 61 611 bottom is fixedly connected by screw.The air inlet that fume inlet passage guidance air-flow enters 3 front end of spiral case is formed below deflector 13 Side, fume inlet passage are surrounded by the bottom plate 133 of upper plate 131, the lower side panel 132 of two sides and rear end.

In the present embodiment, the center of the upper plate 131 of deflector 13 has to the depressed section being recessed away from 3 direction of spiral case 21, depressed section 21 is extended along air motion direction, and the lower surface of depressed section 21 is downwardly projected, the protrusion normotopia In fume inlet passage.

In the present embodiment, it is preferable that downward projection of part (i.e. depressed section 21) is using the whole arc knot to lower recess Structure, while the depth of the depressed section 21 is gradually decreased by front end to tail portion, and width is by front end to tail portion gradually constriction. It can not only guide the air-flow in fume inlet passage to stably enter in the wind output channel 14 of top, guarantee to the greatest extent may be used to kitchen ventilator offer Can big intake, while air-flow is when flowing through fume inlet passage, by depressed section 21 effect by airflow diversion, make wind output channel Air flow method in 14 is more uniform steady, reduces caused aerodynamic noise when air motion.In addition, oil smoke flows to the area Behind domain, since downward projection of part reduces Entry Interface, the speed of oil smoke flowing is increased to a certain extent, is improved The smoke exhaust efficiency of kitchen ventilator.

The depressed section 21 is directed at the oil dripping mouth setting on spiral case 3, and the tail portion of depressed section 21 is provided with oil leakaging port 22, Oil leakaging port 22 is directed at the lubricating cup of smoke collecting chamber 1, effectively oil droplet can be guided to enter in the lubricating cup of rear end, prevent oil droplet sinuous flow, guarantees Oil Guide effect.

In order to guarantee that oil droplet can all drop in depressed section 21, the front end of the depressed section 21, which has, to be extended forward The extension 23 of 3 air inlet ring 16 of spiral case is protruded from, which, which can ensure that, catches whole oil droplets, effectively prevent oil droplet Sinuous flow.Although the depth of the depressed section 21 is gradually decreased by front end to tail portion, since upper plate 131 is to be arranged diagonally downward , the inside of depressed section 21 can still guarantee that its is tilted upwards, and then guarantee oil droplet smoothly in by frontal flow rearwardly The front end of oil leakaging port 22, depressed section 21 is deeper, it is possible to prevente effectively from oil droplet sputters depressed section 21 when dripping.Meanwhile The width of depressed section 21 is by front end to tail portion gradually constriction, not only it is possible to prevente effectively from oil droplet sputters deflector 13, together When be also beneficial to guide oil droplet to tail end, accelerate the flowing velocity of oil droplet.

The multifunctional units such as water conservancy diversion, shunting and Oil Guide in one, are enormously simplified kitchen ventilator air duct system by the deflector 13 The structure of system reduces material and production cost.For the Oil Guide, water conservancy diversion and shunting effect being optimal, in the present embodiment, lead The tilt angle of upper plate 131 in flowing plate 13 is preferably between 0-60 °, and the arc radius of 13 intermediate recessed portions 21 of deflector is excellent It is selected as 200-400mm, depth is preferably 5-50mm, and width is preferably 60-140mm.

The reinforcement groove of multiple vertical extensions is also provided on 13 bottom plate 133 of deflector and/or lower side panel 132 135, to improve the connection structure intensity between deflector 13 and main tank 6 and smoke collecting chamber 1, keep the structure of deflector 13 more steady Gu.

In the present embodiment, the foreboard 61 of main tank 6, back plate 62, spiral case 3 coaming plate 31 between gap in filled with inhale Sound and damping material 29, such as foam, silencing cotton, and will directly be absorbed sound using housing 7 and be wrapped up and consolidated with damping material 29 It is fixed, noise and vibration, the vibration of reduction main tank 6 and noise that air-flow generates spiral case not only can be effectively reduced, while also dropping The low production cost of kitchen ventilator saves material, simplifies the structure of kitchen ventilator, alleviates weight, and the structure is also easy to Processing.Can also in addition be pasted again on the inner wall of housing 7 and the inner wall of access panel 28 one layer sound absorption and damping material, with into One step achievees the purpose that reduce noise, raising user experience.

As shown in Fig. 3, Fig. 4, Fig. 7, in the present embodiment, motor 4 uses external rotor electric machine, is fixedly mounted on 6 back plate of main tank On 62 outer surface.

As shown in Figure 10, motor 4 includes outer rotor 41, intermediate stator 42 and motor shaft 43, and outer rotor 41 is wrapped in fixed The outside of son 42 has central through hole at the center of stator 42, and motor shaft 43 passes through its end and outer rotor 41 after central through hole It is fixedly connected, rotates motor shaft 43 with outer rotor 41.

Stator 42 is including stator coil, magnetic pole of the stator and is fixedly mounted with the stator skeleton being integrated, before stator skeleton End has end cap, and fixing screwed hole 44 is provided on end cap, and motor 4 passes through the fixed peace of fixing screwed hole 44 on stator 42 In back plate 62, easy to disassemble and maintenance cleaning.It is axially disposed in the centre bore of stator skeleton that there are two bearing, motors Axis 43 passes through the inner ring hole installation of two bearings, to guarantee that motor shaft 43 steadily operates.Motor shaft 43 is stretching out the outer of stator 42 It is provided with positioning pin 45 and connection screw thread 46 in portion, there is centre bore on the mounting plate of impeller 5, connection screw thread 46 passes through centre bore Fixation is tightened with nut afterwards, the positioning pin 45 on motor shaft 43 is prominent to side, is in linear type, on the mounting plate of impeller 5 It is correspondingly arranged on card slot (not shown), when installation, the correspondence of positioning pin 45 is caught in card slot, realizes impeller 5 and motor shaft 43 Between installation fix, make impeller 5 with motor shaft 43 rotate.

In assembling, first impeller 5 and the installation of motor shaft 43 can be structure as a whole, one will be assembled into impeller 5 again later Motor shaft 43 after body is inserted into the central through hole of motor 4 and is connected to a fixed with the outer rotor 41 of motor 4, at this time motor shaft 43 It is connect between the mounting hole of outer rotor 41 by spline.The structure of this motor 4 not only facilitates on-site assembly, can also be easily Assembly and disassembly impeller 5, improve packaging efficiency, disassembly, cleaning are more convenient for users.Certainly, the end of motor shaft 43 It can also be directly secured together between the mounting hole of outer rotor 41, when assembling, will be assembled in stator 42 and outer rotor 41 Motor shaft 43 together is fixedly connected after the centre bore of main tank back plate 62 with impeller 5.

The structure of the motor 4 is conducive to the thickness for substantially reducing motor 4 under the premise of guaranteeing air quantity, and motor 4 occupies wind The inner space in road will reduce, so that incoming air area increases.Meanwhile the dismounting of motor 4 is very convenient, is convenient for daily dimension Shield maintenance.The structure of the motor 4 had both solved inner rotor motor and has occupied the big defect in ducting system space, while also solving outer turn Sub-motor is unfavorable for the shortcomings that dismantling and be not suitable for single layer impeller.

Since motor 4 is mounted on the outside of main tank 6, in order to protect motor 4, a guarantor is also equipped in the outside of motor 4 Protecting cover 24, protective cover 24 are fixed by screws in back plate 62.

In order to be further reduced the occupied space of motor 4 while keep the fixation of motor 4 more firm, it is arranged in back plate 62 The groove 25 of oriented 5 direction of impeller recess, motor 4 is mounted in the groove 25 in 6 outside of main tank, and stator 42 and groove 25 paste It closes, has between motor stator 42 and main tank back plate 62 rubber pad (diagram is not shown), rubber pad plays the role of vibration damping sealing, together When can be also used for isolation oil smoke, reduce infringement of the oil smoke to motor 4, and then guarantee the service life of motor 4.

Motor 4 is placed on the outside of main tank 6 and is fixed in back plate 62, it is possible to reduce spiral case bracket in the prior art The structures such as 8 and electric machine support 9, keep the manufacturing process of air duct assembly simple, save cost, and this mounting means can subtract Few air duct area occupied, increases the incoming air area inside main tank 6, and then can promote intake, reduces noise, promotes kitchen ventilator Performance and user experience.Motor 4 is placed on the outside of main tank 5 simultaneously, it is possible to reduce infringement of the oil smoke to motor 4 guarantees motor 4 Service life.

As shown in Figure 3 and Figure 4, in the present embodiment, the electric-controlled box 26 of kitchen ventilator is mounted on 62 outside motor 4 of main tank back plate In the U-shaped space of lower section surrounded by back plate 62, multiple outwardly directed installation wings are set (in figure not in the circumferential direction of electric-controlled box 26 Show), the installation wing is fixed by screws in main tank back plate 62.Electric-controlled box 26 can be installed close to the second side plate 622 of side, Electric-controlled box 26 is fixedly connected with the second mainboard 621 and the second side plate 622 simultaneously.The harness of the components such as control panel and motor is from main tank 6 downside is connected on electric-controlled box 26.Space is not only rationally utilized in such mounting means, reduces 6 height of main tank, reduces The height dimension of kitchen ventilator, while the length of harness is decreased, save the material and manufacturing cost of kitchen ventilator.In addition, will Electric-controlled box 26, which is mounted in main tank back plate 62, to be also possible to prevent children or user's touching electric-controlled box 26 and gets an electric shock, and oil smoke is improved The usage safety performance of machine.

In the present embodiment, the back plate 62 that main tank 6 is close at the rear portion of spiral case 3 is installed, and motor 4 uses the outer rotor of thinner thickness Motor and the outside for being mounted on main tank 6 will be into cigarettes using deflector 13 using the space of 3 front of spiral case as wind output channel 14 Guidance is discharged into the wind output channel 14 of 3 front of spiral case, then through impeller 5 from the exhaust outlet 10 at top.The topology layout is significantly The incoming air area of air duct assembly is increased, and then greatly improves intake volume, improves smoke discharging effect.

In the present embodiment, the back side panel of air-duct spiral case 3 and the back plate 62 of main tank 6 are made of one, while will be before spiral case 3 The foreboard 61 of side plate and main tank 6 is made of one, and eliminates the upper back side panel of spiral case in the prior art, by 61 He of foreboard of main tank 6 Back plate 62 replaces, and is not necessarily to electric machine support and spiral case bracket, not only reduces components, reduce costs, alleviate entire air duct The weight of assembly structure, and make overall structure more firm, the structural strength of main tank 6 is increased, while spiral case 3 is not used as It is installed for individual module, but the component with main tank 6 is co-mounted on kitchen ventilator, is quickly and expediently installed.

Embodiment two:

The difference is that, it is not provided with access panel 28 with embodiment one, but directly by the front end of the foreboard 61 of main tank 6 Portion is fixed by screw and housing 7, surrounds wind output channel 14 using housing 7, foreboard 61 and top plate 63.Keep structure simpler, It, can be to paste one layer of material to absorb sound with vibration damping on the inner wall of housing 7 in order to reduce noise.It only needs to dismount cover when daily maintenance Shell 7.

As described above, the plan content in conjunction with given by attached drawing, can derive similar technical solution.But it is all not take off Content from technical solutions of the utility model is made by the above technical examples according to the technical essence of the present invention any simple Modification, equivalent variations and modification, are still within the scope of the technical solutions of the present invention.

Claims (10)

1. a kind of kitchen ventilator main tank structure, including main tank and spiral case, it is characterised in that: the main tank includes foreboard, back plate and top Plate, the spiral case include the flange at the top of coaming plate and coaming plate, and the two sides of the coaming plate are fixed with the front and rear panels respectively Connection, the top of the front and rear panels and the flange of spiral case be fixedly connected with the top plate, be provided on the top plate and The corresponding exhaust outlet of spiral case top outlet inlet, the foreboard and/or back plate are fixedly connected with the housing on the outside of main tank.

2. a kind of kitchen ventilator main tank structure according to claim 1, it is characterised in that: the cross section of the foreboard is U-shaped, First flange of the first side plate and top that are extended forwards by the first intermediate mainboard, the first mainboard two sides forms, and described the One flange is fixedly connected by fastener with top plate.

3. a kind of kitchen ventilator main tank structure according to claim 2, it is characterised in that: first side plate bottom of two sides There is the extension extended downwardly relative to the first intermediate mainboard, the extension is fixed with the deflector installed below spiral case Connection.

4. a kind of kitchen ventilator main tank structure according to claim 1, it is characterised in that: the cross section of the back plate is U-shaped, It is made of second flange at the second intermediate mainboard, the second side plate that the second mainboard two sides rearward extend, top, described second Flange is fixedly connected by fastener with top plate.

5. a kind of kitchen ventilator main tank structure according to claim 1, it is characterised in that: stretched downwards in the bottom of the back plate A horizontally extending installation side out, the installation side are fixedly connected with the deflector below spiral case.

6. a kind of kitchen ventilator main tank structure according to claim 1, it is characterised in that: be provided in the back plate to snail Shell side installs the motor of kitchen ventilator to the groove of recess in the groove.

7. a kind of kitchen ventilator main tank structure according to claim 1, it is characterised in that: foreboard, back plate in the main tank And filled with sound absorption and damping material in the gap between the coaming plate of spiral case.

8. a kind of kitchen ventilator main tank structure according to claim 1, it is characterised in that: the coaming plate and front and rear panels Junction applies and breaks sealant.

9. a kind of kitchen ventilator main tank structure according to claim 1, it is characterised in that: the front end of the foreboard is fixedly connected One piece of access panel is surrounded the wind output channel of kitchen ventilator or front end and the housing of the foreboard by foreboard, top plate and access panel It is fixedly connected, the wind output channel is surrounded by foreboard, top plate and housing.

10. a kind of kitchen ventilator, it is characterised in that: including just like the described in any item main tank structures of claim 1-9.