CN208475417U - Vibration and noise reducing component, blower and kitchen ventilator - Google Patents

Abstract

The utility model provides a kind of vibration and noise reducing component, blower and kitchen ventilator, is related to purification technology field.The vibration and noise reducing component includes cushion blocking, and cushion blocking is equipped with through hole, has outwardly protruded grafting protrusion along the periphery of through hole on cushion blocking；The blower includes spiral case, motor and above-mentioned vibration and noise reducing component, the side of spiral case is equipped with mounting hole, the grafting protrusion matching of vibration and noise reducing component is plugged in mounting hole, fixed disk is circumferentially with along it on the fuselage of motor, the fuselage of motor is plugged in the inner cavity that grafting convexes to form, the side wall of fixed disk and spiral case is affixed, and cushion blocking is located between fixed disk and the side wall of spiral case；The kitchen ventilator includes shell and above-mentioned blower, and the spiral case of blower is fixedly arranged on enclosure interior.The vibration and noise reducing component can carry out vibration damping processing to the vibration force for all directions that motor generates, and good damping result is corresponding to reduce the occurrence of each component and motor generate resonance and cause noise pollution in blower and kitchen ventilator.

Description

Vibration and noise reducing component, blower and kitchen ventilator

Technical field

The utility model relates to purification technology field more particularly to a kind of vibration and noise reducing components, blower and kitchen ventilator.

Background technique

The manufacturing process of Chinese tradition cooking culture includes decocting, frying, is fried, is roasting etc., is produced during making food big The oil smoke of amount, and oil smoke is not only more serious to the environmental pollution in kitchen, but also kitchen operation personnel stay in oil smoke surroundings for a long time It is larger to body harm, it is serious, or even cancer can be suffered from, therefore, kitchen ventilator is widely used among kitchen, kitchen ventilator system Family kitchen is the electric appliance of generated oil smoke etc when exhaustion is cooked.

Kitchen ventilator operational process can generate noise pollution, and blower is the main source of noise, and blower mainly passes through when working Motor driven impeller rotation drives air-flow, and when motor operation in addition to the noise caused by the Self generating oscillations, motor is also By the spiral case of vibration transmitting fan and kitchen ventilator can be passed to and each component of kitchen ventilator and motor is caused to generate resonance, and The noise pollution contribution margin that resonance generates is greater than noise pollution contribution margin when single component vibration；By noise when user cooks It influences, it is possible to create the senses of discomfort such as headache, agitation or palpitation, therefore various vibration and noise reducing measures are applied to kitchen ventilator by people In, resonance caused by the spiral case and each component of kitchen ventilator to reduce motor oscillating transmitting fan, however existing vibration damping drops Make an uproar component effectiveness in vibration suppression it is poor, resonate the noise pollution of generation after the spiral case and each component of kitchen ventilator of motor oscillating transmitting fan Contribution margin is still larger.

That is, existing vibration and noise reducing vibration reduction in components effect is poor, motor oscillating causes blower and each component resonance of kitchen ventilator, into And the noise pollution contribution margin generated is still larger.

Utility model content

The purpose of this utility model is to provide a kind of vibration and noise reducing component, blower and kitchen ventilators, to solve the prior art Present in vibration and noise reducing vibration reduction in components effect it is poor, motor oscillating causes blower and kitchen ventilator each component resonance, and then generates The larger technical problem of noise pollution contribution margin.

Vibration and noise reducing component provided by the utility model, including cushion blocking, the cushion blocking is equipped with through hole, described to subtract Grafting protrusion is outwardly protruded along the periphery of the through hole on vibration pad, the inside of the grafting protrusion is formed and the through hole Corresponding inner cavity.

Further, the grafting protrusion includes closed annular boss, the inner cavity by the annular boss inside Wall, which encloses, to be set.

Further, the grafting protrusion includes multistage arcuation connection-peg, and arcuation connection-peg described in multistage penetrates described in The periphery dispersed distribution in hole, and corresponding with the periphery radian of the through hole, inner cavity arcuation grafting as described in multistage The inner wall of head, which encloses, to be set.

Further, the cushion blocking is equipped with threading groove.

Another of the utility model is designed to provide a kind of blower, including spiral case, motor and above-mentioned vibration and noise reducing portion Part, the side of the spiral case are equipped with mounting hole, and the grafting protrusion matching of the vibration and noise reducing component is plugged in the mounting hole It is interior, it is circumferentially with fixed disk along it on the fuselage of the motor, the fuselage of the motor is plugged in what the grafting convexed to form Inner cavity, the fixed disk and the side wall of the spiral case are affixed, and the cushion blocking is located in the fixed disk and the spiral case Side wall between.

Further, attachment base is connected on the side plate of the spiral case, the mounting hole is set on the attachment base.

Further, the attachment base, the cushion blocking and the fixed disk are detachable affixed by fixing buckle.

Further, the fixing buckle is flexible fastening button, and the flexible fastening button includes connecting rod and two conic clamps The bottom surface of button, two taper buckles is respectively and fixedly connected in the both ends of the connecting rod, the attachment base, the cushion blocking and institute It states fixed disk to be sheathed in the connecting rod by corresponding connecting hole, and is located between two taper buckles.

Further, the fixing buckle is multiple, circumferential dispersed distribution of multiple fixing buckles along fixed disk.

Another of the utility model is designed to provide a kind of kitchen ventilator, including shell and above-mentioned blower, the shell It is equipped with smoking port and smoke outlet, the spiral case of the blower is fixedly arranged on the enclosure interior, and the air inlet of the blower and institute Smoking port connection is stated, the air outlet of the blower is connected to the smoke outlet.

The utility model vibration and noise reducing component, blower and kitchen ventilator have the beneficial effect that

Vibration and noise reducing component, blower and kitchen ventilator provided by the utility model, wherein vibration and noise reducing component include for pair The cushion blocking of the axial vibration damping of motor and for the radial vibration-reducing to motor grafting protrusion, cushion blocking be equipped be used for power supply machine The through hole that passes through of fuselage, grafting protruding ring is set to the periphery of through hole, forms the through hole passed through for the fuselage of motor； Wherein, blower includes the spiral case for being used to form air flow passage, the motor as power source and above-mentioned reduction motor to spiral case The shaking force of transmitting, to reduce the vibration and noise reducing component of noise pollution；Wherein, kitchen ventilator includes being used to form oil smoke flow all Road and the shell for being used to install each component, shell are equipped with the smoking port for entering enclosure interior for oil smoke and are used for for oil smoke The smoke outlet of discharge, which further includes above-mentioned, is discharged shell for driving external oil-fume self-suction mouth to enter in shell, and from smoke outlet Blower.

When generation oil smoke is needed using kitchen ventilator in kitchen, motor, the wheel rotation in motor driven blower, to oil are opened The intracorporal cooking fume stream of smoke machine shell is oriented to, and is in negative pressure state in shell, and the oil smoke outside kitchen ventilator is acted in inside and outside differential pressure It is lower through smoking port flow into shell in, then followed by the air inlet of blower and air outlet after, from the smoke outlet of shell be discharged, it is complete At the suction-discharge of oil smoke；When without using kitchen ventilator, the motor of blower is closed.

In blower, the grafting protrusion of vibration and noise reducing component peripheral ring of through hole along cushion blocking is set, and is formed and penetrated The corresponding inner cavity in hole, grafting protrusion are plugged on the mounting hole of spiral case, and the fuselage of motor is axially successively plugged in along it to be penetrated Hole is interior intracavitary with this, and barrier has grafting raised between the fuselage and spiral case mounting hole of motor；Fixed disk and spiral case side on motor Wall is affixed, and barrier has a cushion blocking between fixed disk and spiral case side wall, and when motor operation generates vibration force axially and radially respectively, Wherein, axial vibration power is transmitted on cushion blocking through fixed disk, and spiral case side wall is passed to after cushion blocking vibration damping；Radial vibration power It passes to grafting protrusion, the mounting hole of spiral case is passed to after grafting protrusion vibration damping (inner wall through mounting hole passes to spiral case).That is, It being not directly contacted between the fuselage and spiral case of motor, vibration force is required to the transmitting by vibration and noise reducing device, therefore, the vibration damping Noise-reducing components can carry out vibration damping processing to the vibration force for all directions that motor generates, good damping result, it is corresponding reduce spiral case and The occurrence of each component and motor generate resonance and cause noise pollution in spiral case；Correspondingly, spiral case vibration force weakens, spiral case The vibration force for being transmitted to kitchen ventilator shell and its other internal each components also accordingly weakens, and resonance is generated between each component and causes to make an uproar The case where sound pollution, is also accordingly reduced, to reduce noise pollution contribution margin when kitchen ventilator operation, is improved user and is used comfortably Degree.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the schematic diagram of internal structure of blower provided by the embodiment of the utility model；

Fig. 2 is motor in blower provided by the embodiment of the utility model, vibration and noise reducing component and the affixed three-dimensional of attachment base Structural schematic diagram；

Fig. 3 is the configuration schematic diagram of motor, vibration and noise reducing component and attachment base in Fig. 2；

Fig. 4 is three-dimensional structure when being connected with flexible fastening button on vibration and noise reducing component provided by the embodiment of the utility model Schematic diagram；

Fig. 5 is the three dimensional structure diagram of vibration and noise reducing component provided by the embodiment of the utility model.

Icon: 1- cushion blocking；2- grafting protrusion；3- spiral case；4- motor；5- attachment base；6- flexible fastening button； 7- connecting hole；11- through hole；12- threading groove；31- back plate；41- fixed disk；51- mounting hole；61- connecting rod； 62- taper buckle.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.

It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.

The present embodiment provides a kind of vibration and noise reducing components, and as shown in Figure 4 and Figure 5, including cushion blocking 1, cushion blocking 1 are equipped with Through hole 11, has outwardly protruded grafting protrusion 2 along the periphery of through hole 11 on cushion blocking 1, and the inside of grafting protrusion 2 forms and wears The corresponding inner cavity of open-work 11.

The present embodiment also provides a kind of blower, as shown in Figure 1, including spiral case 3, motor 4 and above-mentioned vibration and noise reducing component, snail The side of shell 3 is equipped with mounting hole 51, and 2 matching of grafting protrusion of vibration and noise reducing component is plugged in mounting hole 51, the machine of motor 4 Be circumferentially with fixed disk 41 along it with it, the fuselage of motor 4 is plugged in the inner cavity that grafting protrusion 2 is formed, fixed disk 41 with The side wall of spiral case 3 is affixed, and cushion blocking 1 is located between fixed disk 41 and the side wall of spiral case 3.

The present embodiment also provides a kind of kitchen ventilator, including shell and above-mentioned blower, and shell is equipped with smoking port and smoke outlet, The spiral case 3 of blower is fixedly arranged on enclosure interior, and the air inlet of blower is connected to smoking port, and the air outlet and smoke outlet of blower connect It is logical.

Vibration and noise reducing component, blower and kitchen ventilator provided in this embodiment, wherein vibration and noise reducing component includes for electricity The cushion blocking 1 of the axial vibration damping of machine 4 and grafting protrusion 2 for the radial vibration-reducing to motor 4, cushion blocking 1 are equipped with for supplying The through hole 11 that the fuselage of motor 4 passes through, grafting protrusion 2 are located on the periphery of through hole 11, are formed and are worn for the fuselage of motor 4 The through hole 11 crossed；Wherein, blower includes the spiral case 3 for being used to form air flow passage, as the motor 4 of power source and above-mentioned Reduce the shaking force that motor 4 is transmitted to spiral case 3, to reduce the vibration and noise reducing component of noise pollution；Wherein, kitchen ventilator includes using Shell in forming oil smoke circulation passage and for installing each component, shell are equipped with the suction for entering enclosure interior for oil smoke Mouth and smoke outlet for being discharged for oil smoke further include above-mentioned for driving external oil-fume self-suction mouth to enter in shell, and From the blower of smoke outlet discharge shell.

When generation oil smoke is needed using kitchen ventilator in kitchen, motor 4 is opened, motor 4 drives the wheel rotation in blower, right The intracorporal cooking fume stream of kitchen ventilator shell is oriented to, and is in negative pressure state in shell, and the oil smoke outside kitchen ventilator is made in inside and outside differential pressure With it is lower through smoking port flow into shell in, then followed by the air inlet of blower and air outlet after, from the smoke outlet of shell be discharged, Complete the suction-discharge of oil smoke；When without using kitchen ventilator, the motor 4 of blower is closed.

In blower, the grafting protrusion 2 of vibration and noise reducing component peripheral ring of through hole 11 along cushion blocking 1 is set, and formed with The corresponding inner cavity of through hole 11, grafting protrusion 2 are plugged on the mounting hole 51 of spiral case 3, and the fuselage of motor 4 is axial successively along it It is plugged in through hole 11 and this is interior intracavitary, barrier has grafting protrusion 2 between 3 mounting hole 51 of fuselage and spiral case of motor 4；Motor 4 On fixed disk 41 and 3 side wall of spiral case it is affixed, barrier has a cushion blocking 1 between 3 side wall of fixed disk 41 and spiral case, when motor 4 is run Vibration force axially and radially is generated respectively, wherein axial vibration power is transmitted on cushion blocking 1 through fixed disk 41, through cushion blocking 1 3 side wall of spiral case is passed to after vibration damping；Radial vibration power passes to grafting protrusion 2, passes to spiral case 3 after grafting 2 vibration dampings of protrusion Mounting hole 51 (inner wall through mounting hole 51 passes to spiral case 3).That is, being not directly contacted between the fuselage and spiral case 3 of motor 4, shake Power is required to the transmitting by vibration and noise reducing device, and therefore, which can be to all directions that motor 4 generates Vibration force carries out vibration damping processing, and good damping result accordingly reduces each component in spiral case 3 and spiral case 3 and generates resonance with motor 4 and draw The occurrence of playing noise pollution；Correspondingly, 3 vibration force of spiral case weakens, spiral case 3 be transmitted to kitchen ventilator shell and its it is internal other The case where vibration force of each component also accordingly weakens, and generation resonance causes noise pollution between each component is also accordingly reduced, thus Reduce noise pollution contribution margin when kitchen ventilator operation, improves user's usage comfort.

Specifically, cushion blocking 1 can be integrally formed with grafting protrusion 2, rubber material can be selected to be made, form high resistant Buddhist nun's damping means；The spiral case 3 of blower may include foreboard, back plate 31 and coaming plate, and coaming plate is connected between front and rear panels 31, and three Person collectively forms the air duct of spiral case 3, and wherein the impeller of blower is mounted on inside spiral case 3, and corresponding with impeller on the foreboard of spiral case 3 It is provided with air inlet, the back plate 31 of spiral case 3 is corresponding with motor 4 to be provided with mounting hole 51；The driving end of motor 4 and impeller connect It connects, for driving impeller around its axis rotation.

Specifically, as shown in figure 5, grafting protrusion 2 may include closed annular boss, inner cavity is by ring in the present embodiment The inner sidewall of shape boss, which encloses, to be set.It here is a kind of concrete form of grafting protrusion 2, annular boss is plugged in 3 side wall of spiral case On mounting hole 51 in, the lateral wall of annular convex platform is abutted with the inner sidewall of mounting hole 51, the inner sidewall of annular convex platform and motor 4 Fuselage abut, annular convex platform barrier between motor 4 and spiral case 3, and to the radial vibration power of motor 4 carry out vibration damping processing after Spiral case 3 can just be passed to.

Specifically, the inner sidewall of annular projection is corresponding with the inner wall of through hole 11, radial section is L-shaped；And grafting The thickness of protrusion 2 can be 3~6mm, and length can be 6~12mm.

Grafting protrusion 2 is in addition to above-mentioned form, and in the present embodiment, grafting protrusion 2 can also include multistage arcuation connection-peg, more Section arcuation connection-peg is along the periphery dispersed distribution of through hole 11, and corresponding with the periphery radian of through hole 11, inner cavity is by more The inner wall of section arcuation connection-peg, which encloses, to be set.It here is another concrete form of grafting protrusion 2, multistage arcuation connection-peg is along peace The periphery arrangement in hole 51 is filled, shape forms tubular protrusion, and the grafting protrusion 2 that multistage arcuation connection-peg is constituted is plugged in mounting hole 51 Interior, the lateral wall of multistage arcuation connection-peg is abutted with the inner sidewall of mounting hole 51, the inner sidewall and motor 4 of multistage arcuation connection-peg Fuselage abut, multistage arcuation connection-peg circumferentially barrier between motor 4 and spiral case 3, on the one hand, arcuation connection-peg can be right The radial vibration power of motor 4 passes to spiral case 3 after carrying out vibration damping processing, reduces transmitting and spiral case 3 and the motor 4 of vibration force Resonance；On the other hand, the gap between adjacent arcuation connection-peg forms vibration damping air layer, and vibration damping air layer can preferably weaken The radial vibration power that motor 4 transmits, the corresponding transmitting for reducing vibration force, is further reduced spiral case 3 and motor 4 generates resonant conditions Generation and intensity, it is corresponding to reduce the noise pollution contribution margin generated when running due to blower and kitchen ventilator.

In the present embodiment, threading groove 12 can be equipped on cushion blocking 1.The setting of threading groove 12, motor 4 or other component The electric wire of connection can pass through threading groove 12 and external connection, specifically, as shown in figure 5, threading groove 12 can be set in vibration damping The edge of pad 1, threading groove 12 are opening setting；In addition, threading groove 12 can also be set on cushion blocking 1, it is cavernous structure (this When need corresponding threading hole is set on the fixed disk 41 of motor 4, the attachment base 5 of spiral case 3).

In the present embodiment, as shown in Figures 2 and 3, attachment base 5 can be connected on the side plate of spiral case 3, mounting hole 51 is set In on attachment base 5.The thickness of attachment base 5 is greater than the thickness of 3 side plate of spiral case, correspondingly, mounting hole 51 is set on attachment base 5, The depth of the hole inner sidewall of mounting hole 51 increases, and the contact area of mounting hole 51 and grafting protrusion 2 increases, on the one hand, Neng Gouzeng The damping effect area of big grafting protrusion 2, improves effectiveness in vibration suppression；On the other hand, the bearing area of the raised 2 pairs of motors 4 of grafting It correspondinglys increase, improves the firmness of the connection and stability of motor 4 and spiral case 3.

In the present embodiment, attachment base 5, cushion blocking 1 and fixed disk 41 are detachable affixed by fixing buckle.It here is spiral case 3, a kind of concrete mode connected between vibration and noise reducing component and motor 4, fixed disk 41 pass through the connection on fixing buckle and spiral case 3 Seat 5 is affixed, improves motor 4 and is mounted on the firmness of the connection on spiral case 3.

Specifically, as shown in figure 4, fixing buckle can be flexible fastening button 6, flexible fastening button 6 includes connecting in the present embodiment Extension bar 61 and two tapers buckle 62, the bottom surface of two tapers buckles 62 are respectively and fixedly connected in the both ends of connecting rod 61, attachment base 5, Cushion blocking 1 and fixed disk 41 are sheathed in connecting rod 61 by corresponding connecting hole 7, and be located in two tapers buckle 62 it Between.It here is a kind of concrete form of fixing buckle, the taper buckle 62 of flexible fastening button 6 has certain deformability, connection When, it pushes the tip alignment connecting hole 7 of one of taper buckle 62 and inwardly, the basal diameter of taper buckle 62, which is greater than, to be connected The aperture in hole 7 is connect, taper buckle 62 is squeezed, and deformation occurs, up through connecting hole 7, is stuck in the outside of connecting hole 7；Similar Operation, attachment base 5, cushion blocking 1 and fixed disk 41 are chained together, and the basal diameter of two taper buckles 62 is greater than connection Three is stuck in middle part, completes the connection of three by the diameter in hole 7, two taper buckles 62.When needing to dismantle, firmly by fixed disk 41 or cushion blocking 1 extracted from connecting rod 61.

Fixing buckle is elasticity setting, can effectively reduce the vibration force that fixed disk 41 passes to spiral case 3 by fixing buckle, phase The noise pollution contribution margin that each component is generated due to resonance should be further reduced.

In the present embodiment, as shown in Figures 2 and 3, fixing buckle can be multiple, circumferential direction of multiple fixing buckles along fixed disk 41 Dispersed distribution.Multiple fixing buckles are fixedly connected multiple positions of fixed disk 41, can effectively improve motor 4 and spiral case 3 Firmness of the connection and stability.Specifically, fixing buckle can be 8, circumferential uniformly row of 8 fixing buckles along fixed disk 41 Cloth.

Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations； Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: It can still modify to technical solution documented by previous embodiment, or to some or all of the technical features It is equivalently replaced；And these are modified or replaceed, the utility model embodiment that it does not separate the essence of the corresponding technical solution The range of technical solution.

Claims (10)

1. a kind of vibration and noise reducing component, which is characterized in that including cushion blocking (1), the cushion blocking (1) is equipped with through hole (11), grafting protrusion (2), the grafting protrusion have been outwardly protruded along the periphery of the through hole (11) on the cushion blocking (1) (2) inside forms inner cavity corresponding with the through hole (11).

2. vibration and noise reducing component according to claim 1, which is characterized in that the grafting raised (2) includes closed ring Shape boss, the inner cavity is enclosed by the inner sidewall of the annular boss to be set.

3. vibration and noise reducing component according to claim 1, which is characterized in that the grafting raised (2) includes multistage arcuation Connection-peg, arcuation connection-peg described in multistage along the through hole (11) periphery dispersed distribution, and with the through hole (11) Periphery radian it is corresponding, inner cavity inner wall of arcuation connection-peg as described in multistage, which encloses, to be set.

4. vibration and noise reducing component according to any one of claim 1-3, which is characterized in that set on the cushion blocking (1) There are threading groove (12).

5. a kind of blower, which is characterized in that including spiral case (3), motor (4) and vibration damping of any of claims 1-4 The side of noise-reducing components, the spiral case (3) is equipped with mounting hole (51), grafting raised (2) matching of the vibration and noise reducing component It is plugged in the mounting hole (51), is circumferentially with fixed disk (41) on the fuselage of the motor (4) along it, the motor (4) Fuselage be plugged in the inner cavity that the grafting raised (2) is formed, the side wall of the fixed disk (41) and the spiral case (3) is solid It connects, the cushion blocking (1) is located between the fixed disk (41) and the side wall of the spiral case (3).

6. blower according to claim 5, which is characterized in that attachment base (5) are connected on the side plate of the spiral case (3), The mounting hole (51) is set on the attachment base (5).

7. blower according to claim 6, which is characterized in that the attachment base (5), the cushion blocking (1) with it is described solid Price fixing (41) is detachable affixed by fixing buckle.

8. blower according to claim 7, which is characterized in that the fixing buckle is flexible fastening button (6), and the elasticity is solid Fixed button (6) includes that connecting rod (61) and two tapers buckle (62), the bottom surface that two tapers buckle (62) be respectively and fixedly connected in The both ends of the connecting rod (61), the attachment base (5), the cushion blocking (1) and the fixed disk (41) pass through corresponding Connecting hole (7) is sheathed on the connecting rod (61), and is located between two taper buckles (62).

9. blower according to claim 7 or 8, which is characterized in that the fixing buckle is multiple, multiple fixing buckle edges The circumferential dispersed distribution of fixed disk (41).

10. a kind of kitchen ventilator, which is characterized in that including blower described in any one of shell and claim 5-9, the shell Body is equipped with smoking port and smoke outlet, and the spiral case (3) of the blower is fixedly arranged on the enclosure interior, and the air inlet of the blower It is connected to the smoking port, the air outlet of the blower is connected to the smoke outlet.