CN209639074U - Blower and range hood - Google Patents

Abstract

The utility model discloses a kind of blower and range hoods, including spiral case (2) and the impeller (3) being set in volute chamber, the blower further includes elevating mechanism, and the elevating mechanism is used to drive the wheel bottom of the impeller (3) and the relatively close movement in spiral case bottom of the spiral case (2).The blower of the utility model using elevating mechanism by driving spiral case bottom and wheel bottom close to each other under blower cleaning state, the volume of spiral case bottom cavity is become smaller in the process of cleaning, to reach expected liquid level at this time, only lesser amount of cleaning solution need to be injected into spiral case bottom cavity, save the water consumption of blower in the process of cleaning, to reduce the cleaning cost of range hood, and reduce workload of the user when preparing water for cleaning.

Description

Blower and range hood

Technical field

The utility model relates to fields of home appliance technology, and in particular, to a kind of blower and range hood.

Background technique

As the improvement of people's living standards, being equipped with range hood in the kitchen of most of families, range hood can The oil smoke generated in cooking process is quickly discharged outside room, guarantees the cleaning of air environment within doors with this.But with access times Increase, a large amount of greasy dirt (the especially components such as impeller) can be inevitably gathered in range hood, if not in time to range hood It is cleaned, working efficiency will be greatly reduced, and can have some potential safety problems, it is difficult to guarantee that user's uses body It tests.

For this purpose, the blower being equipped with mostly for being cleaned automatically to fan parts such as impellers in existing range hood is clear Wash system.For example, blower cleaning system, which can inject under cleaning state to spiral case bottom cavity, to be cleaned in some range hoods Liquid, the cleaning solution after the injection can constantly scrub the impeller under rotation status, to realize the high-efficiency washing to impeller.

But above-mentioned cleaning process needs a large amount of cleaning solution, i.e. water consumption is also relatively large, can increase to a certain extent Add cleaning cost.In addition, existing range hood cleaning when with water usually require user provide for oneself water container storage, when clear When water consumption during washing is larger, the workload of user will increase.

Utility model content

In view of the above drawbacks of the prior art or insufficient, the utility model provides a kind of blower and range hood, can Greatly reduce the water consumption of blower in the process of cleaning, is being cleaned to reduce the cleaning cost of range hood and mitigate user Work load in the process.

To achieve the above object, the utility model provides a kind of blower, including spiral case and is set in volute chamber Impeller, the blower further include transmission mechanism, and the transmission mechanism is used to drive the wheel bottom of the impeller and the spiral case The relatively close movement in spiral case bottom.

Preferably, the blower includes impeller motor, and the impeller motor is coaxially mounted to the rear end of the impeller to drive The impeller rotation is moved, the one of them in the spiral case and the impeller motor is fixation member, and another one is moving parts, The transmission mechanism connects and drives the moving parts mobile relative to the fixation member.

Preferably, the transmission mechanism is elevating mechanism, the rear that the spiral case is arranged in.

Preferably, the elevating mechanism be balladeur train elevating mechanism and including vertical fixed rack and with the moving parts The mobile balladeur train being fixedly connected, the vertical fixed rack and the fixation member are fixedly installed, and the mobile balladeur train can It is slid along the vertical fixed rack.

Preferably, the vertical fixed rack includes a left side vertically fixed rack and right vertical fixed rack, the spiral case Rear end sides are respectively equipped with left ear hinge mounting portion and auris dextra hinge mounting portion, and the mobile balladeur train is the A-frame dissipated along center And it is respectively equipped with and is erected with the left side including left support bar, right support bar and vertical supports bar, the left support bar and right support bar The left slider being slidably matched to fixed rack and the right sliding block being slidably matched with the right vertical fixed rack, the left support bar It is fixedly connected respectively with the left ear hinge mounting portion and auris dextra hinge mounting portion with the end of right support bar, on the vertical supports bar Equipped with the lift drive mechanism for driving the mobile balladeur train vertically to slide relative to the vertical fixed rack.

Preferably, the lift drive mechanism is motor-driven leading screw and nut mechanism, and the vertical supports bar is connected to On the travelling nut of the leading screw and nut mechanism.

Preferably, the impeller motor is double-rotor machine, and the rear shaft of the impeller motor drives the mobile balladeur train It is slid along the vertical fixed rack.

Preferably, the rear end of the impeller motor be equipped with motor fixing frame, the motor fixing frame include hoop portion and from The hoop portion extends radially and circumferentially spaced multiple connection ears, and the impeller motor fixing sleeve is loaded on described In hoop portion, the mobile balladeur train and multiple connection ears form Mulit-point Connection.

Preferably, the mobile balladeur train on the vertical fixed rack sliding stroke be less than the impeller outer diameter with Semidiameter between the internal diameter of the volute chamber.

In addition, the utility model additionally provides a kind of range hood, the range hood includes above-mentioned blower and wind Machine cleaning system, the blower cleaning system, which can inject under blower cleaning state to the bottom cavity of the spiral case, to be cleaned Liquid.

Through the above technical solutions, the blower of the utility model can be moved using elevating mechanism driving impeller or spiral case lifting It is dynamic, keep spiral case bottom and wheel bottom close to each other or separate, therefore under blower cleaning state, spiral case bottom and impeller The volume of spiral case bottom cavity between bottom can become smaller.In other words, in ensuring cleaning process spiral case bottom cavity liquid Under the premise of position height is constant, the dosage of the cleaning solution in required injection spiral case bottom cavity is less, exists to save blower Water consumption in cleaning process, substantially reduces the cleaning cost of range hood, and mitigates work of the user when preparing water for cleaning It bears.

Other features and advantages of the utility model will the following detailed description will be given in the detailed implementation section.

Detailed description of the invention

Attached drawing is to be used to provide a further understanding of the present invention, and constitute part of specification, and following Specific embodiment be used to explain the utility model together, but do not constitute limitations of the present invention.In the accompanying drawings:

Fig. 1 is the structural schematic diagram that the range hood of variable volume cavity is equipped in specific embodiment of the present utility model；

Fig. 2 is that the blower of liftable impeller or liftable spiral case is equipped in specific embodiment of the present utility model normal Structural schematic diagram under working condition；

Fig. 3 is that the blower of liftable impeller is equipped in specific embodiment of the present utility model under blower cleaning state Structural schematic diagram；

Fig. 4 is the perspective view of the blower in Fig. 3；

Fig. 5 is the Structure explosion diagram of the blower in Fig. 4；

Fig. 6 is that the blower of liftable spiral case is equipped in specific embodiment of the present utility model under blower cleaning state Structural schematic diagram；

Fig. 7 is the perspective view of the blower in Fig. 6；

Fig. 8 is the Structure explosion diagram of the blower in Fig. 7；

Fig. 9 is the front perspective view that the range hood of split type spiral case is equipped in specific embodiment of the present utility model；

Figure 10 is the rear perspective view of the range hood in Fig. 9；

Figure 11 is the elevating mechanism of the range hood in Fig. 9 and the structural schematic diagram of spiral case water-accepting part；

Figure 12 is that the structure of the blower of air bag in normal operation is equipped in specific embodiment of the present utility model Schematic diagram；

Figure 13 is structural schematic diagram of the blower under blower cleaning state in Figure 12；

Figure 14 is to be equipped with the blower of telescopic moving part in normal operation in specific embodiment of the present utility model Structural schematic diagram；

Figure 15 is structural schematic diagram of the blower under blower cleaning state in Figure 14；

Figure 16 is the front view that the range hood of pressure-bearing type spiral case is equipped in specific embodiment of the present utility model；

Figure 17 is the structural schematic diagram of the existing blower equipped with longitudinal spiral case；

Figure 18 is the structural schematic diagram of the pressure-bearing type spiral case of the range hood in Figure 16；

Figure 19 is the front view that the range hood of water storage box is equipped in specific embodiment of the present utility model；

Figure 20 is the Structure explosion diagram that the range hood of inner water-tank is equipped in specific embodiment of the present utility model；

Figure 21 is equipped with perspective view when water filling port for the side panel of the range hood in Figure 20；

Figure 22 is equipped with perspective view when water filling port for the front panel of the range hood in Figure 20；

Figure 23 is the cross-sectional view of the inner water-tank of the range hood in Figure 20；

Figure 24 is the Structure explosion diagram of the inner water-tank in Figure 23；

Figure 25 is the partial enlargement diagram A-A of the inner water-tank in Figure 24；

Figure 26 is the structural representation that the inner water-tank of water-level detecting device is equipped in specific embodiment of the present utility model Figure.

Description of symbols:

100 range hoods

11 front panel, 12 side panel

13 water filling port, 14 diversion box support

15 diversion box, 16 trunk lock

17 limit stops blocks

2 spiral cases

21 spiral case ontology, 22 spiral case water-accepting part

23 water-accepting part support base, 24 spiral case bottom cavity

25 spiral case air inlet, 26 spiral case air outlet

27 left ear hinge 28 auris dextras of mounting portion cut with scissors mounting portion

251 air inlet rings

3 impellers

31 minimum 32 impeller motors of bottom blade

33 motor fixing frames

331 hoop portions 332 connect ear

41 feed pipe, 42 return pipe

43 water supply control valve, 44 water-returning control valve

45 cleaning solution adding set, 46 heating device

47 cleaning 48 cleaning solutions of jet pipe

49 inner water-tanks

491 water tank inlet, 492 overflow pipe

51 air bag, 52 telescopic moving part

61 low-level probe, 62 high-level probe

63 anti-overflow floating block components

The 71 mobile vertical fixed racks of balladeur train 72

73 elevator carriage, 74 vertical guide

75 push-rod electric machines

711 left support bar, 712 right support bar

713 vertical supports bar, 714 left slider

The 715 left vertical fixed racks of right sliding block 721

722 right vertical fixed racks

8 oil boxs

9 water storage boxes

Specific embodiment

Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.

It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can To be combined with each other.

In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, top, bottom " is usually Be for direction shown in the drawings either for it is vertical, vertically or on gravity direction for each component mutual alignment Relationship description word.

The utility model will be described in detail below with reference to the accompanying drawings and embodiments.

The utility model provides a kind of range hood 100, and as shown in Fig. 1 to Figure 26, which includes being equipped with The blower of spiral case 2 and impeller 3 and blower cleaning system for cleaning blower.Wherein, impeller 3 is located at the volute chamber of spiral case 2 In, the spiral case bottom cavity 24 between the spiral case bottom of spiral case 2 and the wheel bottom of impeller 3 is formed to according to working condition Difference and the variable volume cavity of volume adjusted size.Range hood 100 includes that normal operating conditions and blower clean state, works as suction When kitchen ventilator 100 is in normal operating conditions, spiral case bottom cavity 24 is formed as the biggish working condition cavity of volume, works as oil suction When smoke machine 100 is in blower cleaning state, spiral case bottom cavity 24 is formed as the cleaning state that volume is less than working condition cavity Cavity, and spiral case bottom cavity 24 can switch in due course between the working condition cavity and cleaning state cavity.In addition, In Under blower cleaning state, the blower cleaning system in range hood 100 can inject cleaning solution 48 into spiral case bottom cavity 24, Impeller 3 is in rotation status at this time and wheel bottom is partially immersed in cleaning solution 48, i.e., cleaning solution 48 can impregnate impeller Constantly it is scrubbed while bottom, to effectively remove the greasy dirt accumulated in impeller 3.

As it can be seen that the range hood 100 of the utility model is by setting the variable of variable volume for spiral case bottom cavity 24 Cavity, so that spiral case bottom cavity 24 can have smaller volume under blower cleaning state, in the oil suction of the utility model Under the premise of smoke machine 100 is identical with the liquid level in the spiral case bottom cavity of existing range hood, the suction of the utility model The cleaning fluid volume of required injection is less in the spiral case bottom cavity 24 of kitchen ventilator 100.In other words, it can ensure that cleaning solution 48 is right Under the premise of wheel bottom is impregnated and scrubbed, water consumption needed for the range hood 100 of the utility model is less.Therefore, The range hood 100 of the utility model has the advantages that cleaning is at low cost.In addition, in the range hood 100 of the utility model In some embodiments, user may need from the water container for being ready for use on storage water for cleaning, less in cleaning water consumption In the case of, user need not remove by heavier water container or carry out multiple plus water to water container, can ensure fume-exhausting The cleaning effect of machine.As it can be seen that the work of user can also be mitigated to a certain extent by setting variable volume cavity for spiral case bottom cavity 24 It bears, so as to improve its usage experience.

It should be noted that kitchen ventilator 100 in the utility model can by be arranged a variety of different structure or methods with The variable volume for realizing spiral case bottom cavity 24 will hereinafter enumerate several preferred embodiment how to illustrate by snail Shell bottom cavity 24 is formed as variable volume cavity.But it is to be understood that a variety of preferred embodiments being set forth below are only used for pair The conception of the utility model is explained and supplements support, but should not be understood as being formed to by spiral case bottom cavity 24 For the limitation of the other structures or method of variable volume cavity.In other words, spiral case bottom cavity 24 can be formed as variable capacity by other The structure or method of chamber should belong within the scope of the considerations of the utility model, but since length is limited, not retouch one by one hereinafter It states.

Relatively-movable spiral case and impeller

In a preferred embodiment, as shown in Fig. 2 to Fig. 8, in range hood 100 be equipped with for drive spiral case 2 with The transmission mechanism that impeller 3 relatively moves, the transmission mechanism can be elevating mechanism.Wherein, it is cleaned in the blower of range hood 100 Under state, which can drive spiral case bottom and wheel bottom close to each other, at this time the volume of spiral case bottom cavity 24 Become smaller to be formed as above-mentioned cleaning state cavity.Compared with existing range hood, at this time needed for injection range hood 100 Cleaning fluid volume in spiral case bottom cavity 24 is less, significantly reduces production cost and reduces the workload of user.Complete After the cleaning of pairs of range hood 100, which can drive spiral case bottom to be located remotely from each other with wheel bottom, make spiral case bottom Portion's cavity 24 re-forms as the working condition cavity with large volume, is worked normally with preparing the next time of range hood 100.

It specifically, further include impeller motor 32 in the blower of range hood 100, the front end of impeller 3 is air intake, therefore leaf Turbin generator 32 is coaxially installed on the rear end of impeller 3 to drive its rotation.Based on above-mentioned preferred embodiment, for make spiral case 2 with It can be relatively moved between impeller 3, fixation member, another one can be set by the one of them in spiral case 2 and impeller motor 32 It is set as moving parts, and elevating mechanism is connected on moving parts to drive the moving parts to move relative to fixation member It is dynamic.Alternatively, spiral case 2 and impeller 3 can also be respectively connected on different elevating mechanisms, enable spiral case 2 and impeller 3 simultaneously It is mobile, but the structure is disadvantageous in that, and multiple elevating mechanisms can occupy the space in machine cavity too much, to greatly increase The overall volume and fuselage weight of range hood 100.Therefore, spiral case 2 or impeller 3 only hereinafter are operated alone to elevating mechanism Embodiment is explained.

It should be noted that being limited to installation site of the range hood in kitchen, elevating mechanism can be preferably provided at In the machine cavity of range hood 100, and when elevating mechanism is arranged in the machine cavity of range hood 100, its, which should be avoided, influences machine cavity The normal work of interior other component.Normally, the front end of spiral case 2 and impeller 3 is air intake, therefore is not suitable for elevating mechanism It is set to the front of spiral case 2 and impeller 3.Further, since spiral case bottom cavity 24 is formed between spiral case bottom and wheel bottom, Therefore also it is not suitable for for elevating mechanism being set to the lower section of impeller 3.Furthermore the space mistake between at the top of spiral case and at the top of impeller It is small, therefore also it is not suitable for installation elevating mechanism.In summary, elevating mechanism can be preferably provided to spiral case 2 and impeller 3 Rear position will not both impact the normal work of other component, also the connection of easy of rise mechanism and moving parts.

In addition, the lifting with different structure or connection type can be used in the range hood 100 in this preferred embodiment Mechanism, such as balladeur train elevating mechanism etc..Several preferred structure will hereinafter be enumerated and how to pass through elevating mechanism to illustrate Spiral case 2 and impeller 3 is driven to relatively move.But it is to be understood that a variety of preferred structures hereinafter enumerated are only used for originally excellent Select the conception in embodiment to be explained and supplement support, but should not be understood as be to by the structure of elevating mechanism or The limitation of connection type.In other words, other elevating mechanisms not described below should belong to this preferred embodiment In limit of consideration, but since length is limited, do not describe one by one hereinafter.

Preferably, balladeur train elevating mechanism can be used as the elevating mechanism in this preferred embodiment.The balladeur train elevator Structure includes mobile balladeur train 71 and vertical fixed rack 72, wherein vertical fixed rack 72 and fixation member be fixedly installed (such as Can be fixed on the casing of range hood 100), mobile balladeur train 71 is fixedly connected with moving parts and can vertically fix cunning The lifting sliding of rail 72.

Removable impeller

As shown in Figures 2 to 5, spiral case 2 can be set to fixation member and sets moving parts for impeller motor 32.This When, mobile balladeur train 71 can drive impeller motor 32 relative to 2 lifting moving of spiral case.Shape is cleaned in the blower of range hood 100 Under state, impeller motor 32 declines together with impeller 3 so that wheel bottom is close to spiral case bottom, in the normal work of range hood 100 Under state, impeller motor 32 rises together with impeller 3 so that wheel bottom is again far from spiral case bottom.

Further, the rear end of impeller motor 32 can be equipped with motor fixing frame 33.The motor fixing frame 33 includes hoop portion It 331 and is extended radially from hoop portion 331 and circumferentially spaced multiple connection ears 332.Wherein, impeller motor 32 is solid Surely it is set in hoop portion 331, mobile balladeur train 71 is preferably set as forming Mulit-point Connection knot between multiple connection ears 332 Structure.Since 331 support of hoop portion has the impeller motor 32 of constant weight, which is conducive to increase mobile balladeur train Bonding strength between 71 and motor fixing frame 33 enables impeller motor 32 to follow mobile 71 instant liftable of balladeur train, to ensure Spiral case bottom cavity 24 can be according to the variation of working condition and in time between working condition cavity and cleaning state cavity Switching.

Removable spiral case

As shown in Fig. 2, Fig. 6 to Fig. 8, impeller motor 32 can also be set to fixation member and set mobile for spiral case 2 Component.At this point, vertical fixed rack 72 may include the vertical fixed rack 721 in a left side and right vertical fixed rack of parallel interval setting 722.Since the weight of spiral case 2 is larger, therefore, to assure that mobile balladeur train 71 has enough stiffness and strength, therefore can slide mobile Frame 71 is preferably arranged to the A-frame dissipated along center, which includes left support bar 711, right support bar 712 and erect To cradling piece 713.Wherein, the respective head end of left support bar 711, right support bar 712 and vertical supports bar 713 is all connected to triangle The center of bracket, the end of left support bar 711 and left ear hinge mounting portion 27 be fixedly connected and the end of right support bar 712 with Auris dextra hinge mounting portion 28 is fixedly connected.In addition, the left slider 714 on left support bar 711 is matched with the left vertical sliding of fixed rack 721 It closes, the right sliding block 715 on right support bar 712 is slidably matched with right vertical fixed rack 722, and vertical supports bar 713, which is equipped with, to be used In the lift drive mechanism for driving mobile balladeur train 71 vertically to slide relative to vertical fixed rack 72.

As it can be seen that mobile balladeur train 71 is able to drive spiral case 2 and goes up and down shifting relative to impeller 3 under the action of lift drive mechanism It is dynamic.Under the blower cleaning state of range hood 100, spiral case 2 rises so that spiral case bottom is close to wheel bottom, in range hood Under 100 normal operating conditions, spiral case 2 declines so that spiral case bottom is again far from wheel bottom.

For the lightweight for realizing range hood 100, elevating mechanism should be reduced to the greatest extent and occupied in the machine cavity of range hood 100 Space.Therefore, above-mentioned lift drive mechanism can be preferably arranged to lighter push-rod electric machine 75.It is set in the push-rod electric machine 75 There is leading screw and nut mechanism, it, can be by motor shaft by the way that vertical supports bar 713 to be connected on the travelling nut of leading screw and nut mechanism Rotary motion be converted into the elevating movement of mobile balladeur train 71.As it can be seen that the volume of elevating mechanism obtains by using push-rod electric machine 75 With reduction, and be conducive to simplify the connection structure between lift drive mechanism and mobile balladeur train 71.

Alternatively, also double-rotor machine can be set by impeller motor 32, which includes for driving impeller 3 to revolve The front rotary shaft turned and the rear shaft rearward stretched out, and front rotary shaft and rear shaft can rotate independently of each other.Based on this electricity Machine structure, can be using rear shaft as the line shaft for driving mobile balladeur train 71 to slide, i.e., using the double-rotor machine as above-mentioned Lift drive mechanism.

In the preferred embodiment, it when spiral case bottom and wheel bottom close to each other under blower cleaning state, moves Dynamic sliding stroke of the balladeur train 71 on vertical fixed rack 72 should be less than between spiral case bottom and wheel bottom it is most short it is vertical away from From the semidiameter that should be less than between the outer diameter of impeller 3 and the internal diameter of volute chamber avoids spiral case bottom and wheel bottom with this Rigid collision occurs and causes the damage of structure, to improve the reliability of range hood 100.

Split type spiral case

In another preferred embodiment, as shown in Figures 9 to 11, spiral case 2 is set as split type structure.The spiral case 2 Including superposed spiral case ontology 21 and positioned at the spiral case water-accepting part 22 of lower part, impeller 3 is located in spiral case ontology 21, and spiral case connects It water portion 22 can be relative to 21 lifting moving of spiral case ontology.Wherein, under the blower cleaning state of range hood 100, spiral case is connect Water portion 22 rises to make the spiral case bottom cavity 24 in spiral case water-accepting part 22 be formed as the lesser cleaning of volume close to wheel bottom State cavity.Under the normal operating conditions of range hood 100, the decline of spiral case water-accepting part 22 is to make spiral case far from wheel bottom Bottom cavity 24 re-forms as the biggish working condition cavity of volume.As it can be seen that by setting split type structure for spiral case 2, Spiral case bottom cavity 24 in spiral case water-accepting part 22 be formed to be changed according to working condition and volume adjusted size it is variable Cavity.

It can be seen from the above, spiral case water-accepting part 22 can go up and down lifting moving between low spot and lifting high point.When spiral case connects When water portion 22 is located at lifting low spot, range hood 100 is in normal operating conditions, and spiral case water-accepting part 22 can be spelled with spiral case ontology 21 It is connected into complete cyclic annular spiral case, the two sides outer wall of spiral case water-accepting part 22 is connected to the internal perisporium of spiral case ontology 21 respectively at this time, from And make spiral case 2 that there is preferable air-tightness, advantageously ensure that the normal work of blower.When spiral case water-accepting part 22 is located at lifting high point When, range hood 100 is in blower cleaning state, and the two sides outer wall of spiral case water-accepting part 22 is detached from the inner circumferential of spiral case ontology 21 Wall, at this time close to wheel bottom in the top insertion spiral case ontology 21 of spiral case water-accepting part 22.

In addition, the range hood 100 in this preferred embodiment further includes the elevator for connecting spiral case water-accepting part 22 Structure, the elevating mechanism can drive 22 lifting moving of spiral case water-accepting part.

Preferably, elevating mechanism may include vertical guide 74 and can vertically guide rail 74 slide elevator carriage 73. At this point, vertical guide 74 and spiral case ontology 21 are fixedly installed (such as can be fixed on the casing of range hood 100), lifting Balladeur train 73 is fixedly connected with spiral case water-accepting part 22.Under the action of lift drive mechanism in elevating mechanism, 73 energy of elevator carriage Enough together with 22 lifting moving of spiral case water-accepting part.It should be noted that elevating mechanism or lift drive mechanism may be configured as it is a variety of Different structure, for instance, it may be preferable to set push-rod electric machine 75 etc. for lift drive mechanism.

To improve stability of the spiral case water-accepting part 22 in lifting process, it can be arranged in the bottom of spiral case water-accepting part 22 and be used for The water-accepting part support base 23 of support, elevator carriage 73 is fixedly connected on water-accepting part support base 23 at this time.When 73 edge of elevator carriage When the lifting sliding of vertical guide 74, water-accepting part support base 23 can play preferable support supporting role to spiral case water-accepting part 22.

Specifically, when range hood 100 is in blower cleaning state, the needs of spiral case water-accepting part 22 are temporarily used for holding clear Washing lotion, therefore the bottom wall of spiral case water-accepting part 22 and side wall need to have preferable leakproofness to prevent leak-stopping liquid.For this purpose, can be by spiral case Water-accepting part 22 is preferably arranged to the integrated molding plastic part of bottom wall and the equal encapsulation process of peripheral wall.And in the normal of range hood 100 Under working condition, the oil smoke air-flow entered in volute chamber from external environment can cause stronger impact to spiral case ontology 21, therefore Spiral case ontology 21 is preferably spliced using metal plate, so as to improve stiffness and strength, so that it is guaranteed that range hood 100 is reliable Property.

In addition, need to ensure the cleaning solution 48 in spiral case water-accepting part 22 before range hood 100 enters normal operating conditions It has been discharged.Therefore, it can be provided with the blowdown opening of switching control pilot in the bottom of spiral case water-accepting part 22, and by this Hose is connected in blowdown opening being expelled to cleaning solution 48 in the oil box 8 of the lower section of spiral case water-accepting part 22, is filled to oil box 8 Man Hou, user can extract oil box 8 out from range hood 100, and clean to it.Alternatively, can also be by spiral case water-accepting part 22 In cleaning solution 48 drain into external sewage pipe by the way that specific pipeline is directly outer.

Cavity filling member

In another preferred embodiment, as shown in Figure 12 to Figure 15, in the spiral case bottom cavity 24 of range hood 100 Equipped with cavity filling member.The cavity filling member can change according to the working condition of range hood 100 and adjust volume size, i.e., Volume can be reduced under the normal operating conditions of range hood 100 or increased under the blower cleaning state of range hood 100 Large volume, so that spiral case bottom cavity 24 be made to be formed as variable volume cavity.Wherein, when range hood 100 is in blower cleaning state When, since the volume of cavity filling member increases, the space that cleaning solution 48 can be held in spiral case bottom cavity 24 becomes smaller, and to make clear Washing lotion 48 reaches expected liquid level, only lesser amount of cleaning solution 48 need to be injected, to greatly reduce in cleaning process Water consumption.

Specifically, inflatable element can be set by cavity filling member.The inflatable element is referred in range hood The element for shrinking under 100 normal operating conditions or expanding under the blower cleaning state of range hood 100 is shunk or swollen Swollen process can both rely only on the physically or chemically attribute of itself to realize, can also rely on and come with the cooperation of other structures or device etc. Cooperative achievement.In other words, the inflatable element in this preferred embodiment can have a variety of different structures or combining form.

As shown in Figure 12 and Figure 13, which is preferably set as the air bag 51 with air charging system.In oil suction Under the normal operating conditions of smoke machine 100, air bag 51 is in contraction state.And under the blower cleaning state of range hood 100, gas Capsule 51 is in swelling state.

Alternatively, the inflatable element may be configured as foaming body.Wherein, under the blower cleaning state of range hood 100, hair Foam, which meets water, will become swelling state, so that own vol be made to become larger.And under the normal operating conditions of range hood 100, it can It can need the foaming body in swelling state could be restored to contraction state by other structures or device.

In addition, as shown in Figure 14 and Figure 15, cavity filling member may also be configured to shrink in spiral case bottom cavity 24 With the telescopic moving part 52 of stretching, extension.The telescopic moving part 52 can extend upwardly into the expanded state in spiral case bottom cavity 24 or Person can be contracted to spiral case bottom in a contracted state.It can be seen that the packing volume of telescopic moving part 52 in the expanded state Greater than its packing volume in a contracted state, to make to be formed as variable volume cavity in spiral case bottom cavity 24.

It should be noted that the contraction of the telescopic moving part 52 in this preferred embodiment or stretching are required to pass through Other structures or device control are realized.For example, the contraction or stretching, extension of telescopic moving part 52 can be triggered by mechanical structure, can also lead to It crosses and electronic sensor is set in telescopic moving part 52 to incude its contraction of triggering or stretching, extension.

Pressure-bearing type spiral case

In another preferred embodiment, range hood 100 includes centrifugal fan, as shown in fig. 16 and 18, should Centrifugal fan includes spiral case 2 and the impeller 3 in volute chamber, which is pressure-bearing type spiral case, and top goes out equipped with spiral case Air port 26 can be equipped with check-valves in the spiral case air outlet 26.Wherein, above-mentioned pressure-bearing type spiral case refers in particular to a kind of spiral case air outlet 26 The spiral case that extends along horizontal cross of air outlet central axis, which is approximate horizontal transverse direction, i.e. outlet air Allow that there are certain angles between mouthful central axis and horizontal line.For example, can be by air outlet central axis and horizontal water Flat angle is preferably arranged to no more than 30 °, to guarantee the substantial transverse of air outlet central axis.In addition, longitudinal hereinafter Spiral case refers in particular to the spiral case that a kind of air outlet central axis of spiral case air outlet 26 extends along the vertical direction, which is substantially Vertical direction, i.e., allow that there are certain angles between air outlet central axis and vertical line.

It should be noted that above-mentioned spiral case 2 can both be fixedly installed, it may be alternatively provided as rotatable bodies.For example, working as spiral case 2 When being set as rotatable bodies, it can rotate under the normal operating conditions of range hood 100 to be formed as shown in figure 17 Longitudinal spiral case can rotate under the blower cleaning state of range hood 100 and be formed as pressure-bearing type snail as shown in figure 18 Shell.But no matter spiral case 2 is arranged to fixed body or rotatable bodies, is all formed as pressure-bearing type spiral case under blower cleaning state.

As it can be seen that the spiral case bottom cavity 24 between the spiral case bottom of range hood 100 and wheel bottom is when spiral case is horizontal Volume be less than volume when spiral case is longitudinal.In other words, when cleaning to centrifugal fan, and ensuring spiral case bottom Under the premise of expection liquid level in cavity 24 is constant, cleaning fluid volume in the spiral case bottom cavity 24 of pressure-bearing type spiral case compared with Longitudinal spiral case is less, to save the water consumption of blower in the process of cleaning.

Preferably, involute can be set by the external molded line (i.e. outer contour) of spiral case 2.Due to this preferred embodiment In blower be centrifugal fan, the rotation center of the rotation center and impeller 3 of spiral case 2 is set for the eccentric.Therefore, along this gradually The expansion direction to burst at the seams, each point on involute and the radial spacing between the basic circle of involute are gradually increased.Wherein, involute Including with the smallest involute initial point of the radial spacing of basic circle and with the maximum involute terminal of radial spacing of basic circle, this is gradually It bursts at the seams initial point and involute terminal is located on the two sides side wall of spiral case air outlet 26.Further, involute initial point and snail Length between the outer end face of shell air outlet 26 is less than the length between involute terminal and the outer end face of spiral case air outlet 26.

When the external molded line of spiral case 2 is set as involute, the volume of the spiral case bottom cavity 24 of pressure-bearing type spiral case is less than The volume of the spiral case bottom cavity 24 of longitudinal spiral case.It can be seen that the range hood 100 using pressure-bearing type spiral case can be more Save water for cleaning.

In addition, the basic circle of above-mentioned involute is preferably set as corresponding positioned at the spiral case air inlet 25 of the end face of spiral case 2 Circular wheel profile.The week edge of the spiral case air inlet 25 is equipped with air inlet ring 251, therefore it is highly preferred that the circular wheel profile and air inlet The contour line of circle 251 substantially overlaps.

Blower cleaning system (external running water pipe and sewer)

In one embodiment, as shown in Figure 1, including 41 He of feed pipe in the blower cleaning system of range hood 100 Return pipe 42.The upstream end of feed pipe 41 can connect running water pipe and downstream connection cleaning jet pipe 47, cleaning jet pipe 47 are stretched Enter in the spiral case 2 of blower to spray cleaning solution 48, the spiral case bottom cavity 24 and bottom end energy of the top connection spiral case 2 of return pipe 42 Enough it is connected to external sewage pipe.

By the way that feed pipe 41 is connected to running water pipe and return pipe 42 is connected to external sewage pipe, user is in fume-exhausting Without self-contained water reservoir and without voluntarily configuring cleaning solution 48 in the cleaning process of machine 100, workload greatly reduces, fume-exhausting The cleaning efficiency of machine 100 is also greatly improved, to be effectively improved the usage experience of user.

Specifically, blower cleaning system may include that the water supply control valve 43 that the upstream end of feed pipe 41 is arranged in and setting exist Water-returning control valve 44 in return pipe 42.At this point, the open or close of control water supply control valve or water-returning control valve 44 can be passed through To control water for cleaning inflow or discharge range hood, to improve the degree of automation when range hood 100 cleans.

Further, water supply control valve 43 can be set to electromagnetic flow valve and sets electromagnetism for water-returning control valve 44 Switch valve.Wherein, water consumption in cleaning process can rationally be controlled by setting electromagnetic flow valve for water supply control valve 43, will be returned Water control valve 44, which is set as electromagnetic switch valve, can satisfy needs of the range hood 100 under different wash phases.For example, clear Wash initial stage, need to hold more cleaning solution 48 in spiral case bottom cavity 24, should control at this time water-returning control valve 44 close to prevent Only 48 outlet of cleaning solution, and after the completion of cleaning can control and open water-returning control valve 44 with will be outside the whole discharge machines of cleaning solution 48.

In addition, the cleaning solution adding set 45 positioned at the downstream of water supply control valve 43 can be equipped in feed pipe 41.The cleaning Liquid adding set 45 includes the addition for storing the soda liquor container of cleaning solvent with the exit that soda liquor container is arranged in Control valve.Addition control valve opening state under, soda liquor container can to feed pipe 41 discharge cleaning solvent with water supply Tap water in pipe 41 is configured to cleaning solution 48.

Wherein, electromagnetic flow valve can be set by addition control valve, the automatic control of the controller in range hood 100 Under, the cleaning solution 48 with suitable concentration can be deployed according to the pollution level in machine cavity, to guarantee the cleaning to range hood Effect.

Specifically, the heating device 46 positioned at the downstream of cleaning solution adding set 45 can be also equipped in feed pipe 41.At this point, Heating device 46 is used to cleaning solution 48 being heated into high-temperature liquid state cleaning solution or high-temperature gas cleaning solution, by cleaning solution 48 into Row heating, the dirt-removing power of cleaning solution 48 is more preferable, can further increase the cleaning efficiency of range hood.Alternatively, heating device 46 also can be set in the upstream of cleaning solution adding set 45, at this point, heating device 46 can be by tap water heating to certain temperature Degree is just mixed with cleaning solution 48.

Further, also oil return pipe can be set in the oil box 8 of range hood 100, which can connect return pipe 42, i.e. greasy dirt in oil box and the cleaning solution 48 in spiral case bottom cavity 24 can be expelled to external blowdown by return pipe 42 Pipe, makes user without self-cleaning oil box, to effectively promote its usage experience.

To the range hood 100 in any one embodiment in this article, the spiral case end face of spiral case 2 is entered the wind equipped with spiral case Mouth 25, the week of spiral case air inlet 25 include the minimum bottom blade in bottom extreme lower position along air inlet ring 251, impeller 3 is equipped with 31.As shown in figure 19, under blower cleaning state, cleaning solution 48 that blower cleaning system is injected into spiral case bottom cavity 24 Liquid level is preferably arranged to edge on the blade not less than minimum bottom blade 31, and is preferably arranged to not higher than air inlet ring 251 Lowermost end prevent cleaning solution 48 logical thus under the premise of ensuring that cleaning solution 48 can sufficiently impregnate minimum bottom blade 31 Spiral case air inlet 25 is crossed to flow out spiral case 2 and influence spiral case air inlet.

In addition, the range hood 100 in any one embodiment in this article can be set in its spiral case bottom and be sealed Property preferable water storage box 9, the storage chamber of the water storage box 9 is connected to spiral case bottom cavity 24, and the bottom of the water storage box 9 is equipped with band The bottom end opening of switching control pilot, the bottom end opening connect the hose extended downwardly towards oil box 8.As it can be seen that since water storage box 9 has There is preferable leakproofness, therefore when processing spiral case 2 without being sealed processing to it, so that the processing to spiral case 2 is simplified, Be conducive to improve the production efficiency of kitchen ventilator 100.

Blower cleaning system (inner water-tank and its water level detecting)

In one embodiment, it as shown in Figure 20 to 25, is equipped with and is built in the blower cleaning system of range hood 100 Inner water-tank 49 in machine cavity.

By the way that inner water-tank 49 is arranged, user without self-contained water reservoir and is not necessarily in the cleaning process of range hood 100 Voluntarily configure cleaning solution 48, can reduce in the process of cleaning needed for workload, be conducive to improve range hood cleaning from Dynamicization degree, to mitigate the work load of user and improve the cleaning efficiency of range hood.In addition, the inner water-tank 49 Being arranged can make the structure integrated level of range hood 100 higher, thus more convenient to install and use.

For the more compact structure for making each component in machine cavity, preferably inner water-tank 49 is fixedly installed in behind casing On plate.In addition, the water filling port 13 for being drained to inner water-tank 49 can be arranged on the casing of range hood 100, when built-in water Water shortage in case 49 and make cleaning when can not be normally carried out, user can be carried out by the water filling port 13 to inner water-tank 49 plus water.Example Such as, water filling port 13 can be set to the front panel of casing according to the use habit of user or installation site of range hood 100 etc. 11 or side panel 12 on, or multiple water filling ports 13 can also be set on plate 11 and side panel 12 in front simultaneously.

It is preferably provided with diversion box support 14 in water filling port 13, and diversion box support 14 is equipped with can stretch out drawing for casing Water box 15.When inner water-tank 49 is in exsiccosis, user can first make diversion box 15 stretch out casing, then into diversion box 15 Directly plus moisturizing can be further drained in inner water-tank 49 by water, diversion box 15.As it can be seen that the diversion box 15 can be by moisturizing It is accurately drained in inner water-tank 49, so that moisturizing be prevented to be spilled over in the other component in machine cavity, effectively prevent occurring short Situations such as road failure.

To further prevent spilling water, inner water-tank 49 can be set in closure water tank, which is equipped with water tank water intake Mouth 491, water outlet of water tank and water container backwater mouth, diversion box 15 can be connected with delivery hose.Wherein, delivery hose can pass through water Case water inlet 491 protrudes into inner water-tank 49, so that the moisturizing in diversion box 15 is accurately drained to inner water-tank 49.

In addition, the upstream end of the feed pipe 41 in blower cleaning system is connected to water outlet of water tank, downstream connection is protruded into The upstream end of cleaning jet pipe 47 in the volute chamber of blower, return pipe 42 can be connected to the bottom cavity of spiral case, and downstream can connect Pass to water container backwater mouth.Due to being provided with inner water-tank 49, blower cleaning system can be formed in the machine cavity of range hood 100 Complete cleaning water route, saves the operation of user, improves the degree of automation of range hood cleaning, and make range hood 100 structure is more compact.

Specifically, diversion box 15 can be manual drawing and pulling type box body, electric-controlled type mobile box body or elastic press type box body etc. and have The extended formula box body of different structure.For example, can connect diversion box support 14 by trunk lock 16 with diversion box 15, draw at this time Water box 15 are formed as elastic press type box body, and user can be by directly pressing diversion box 15 so that its pop-up or reset.Alternatively, can also be Control button is arranged in the other positions of casing, and when user presses or contacts the control button, diversion box 15 being capable of automatic spring Or it resets.Alternatively, sensor can also be arranged in range hood 100, user can control 15 bullet of diversion box by modes such as remote controls Out or reset.

Preferably, limit stops can be set in the one of them in the periphery shell part at diversion box support 14 and the mouth of a river 13 Block 17, the limit stops block 17 can be formed with diversion box 15 and be snapped connection, effectively prevent diversion box 15 to completely disengage casing, keep away Exempt from diversion box 15 and turn over side spilling water when being detached from casing, improves the reliability of diversion box 15.In addition, in some preferred structures, Limit stops block 17 can be equipped in the periphery shell part at diversion box support 14 and the mouth of a river 13 simultaneously.

It should be noted that range hood 100 not can be carried out normal wash when inner water-tank 49 is in exsiccosis, When inner water-tank 49 is in spilling water state, the other component that will affect in machine cavity is worked normally.However, user can not directly see Examine the water level conditions in inner water-tank 49, therefore no matter inner water-tank 49 is in water shortage or spilling water state, with can not make per family Accurate judgement out, this is easy for the adverse effect for occurring above-mentioned.

Therefore, based on the inner water-tank 49 in present embodiment, a kind of water-level detecting device and water level warning device are proposed. Wherein, water-level detecting device is for detecting the height of water level in inner water-tank 49 and exporting height of water level signal, water level warning dress Electrical connection water-level detecting device is set, and water level warning can be issued after receiving height of water level signal.It should be noted that the water It may include that display alarm or reminded etc. by voice broadcast a variety of different mentions on the control panel of range hood 100 that position, which is reminded, The mode of waking up.

The water-level detecting device and water level warning device of inner water-tank 49 are corresponded to by being arranged, range hood 100 has The function of reminding user in time in the case where built-in water tank lacks water or spilling water allows users to rationally be grasped according to prompting Make, so that it is guaranteed that blower cleaning system can reliably be run, and effectively avoids causing bad shadow to the other component in machine cavity It rings.

As shown in figure 26, water-level detecting device includes electric pole type water-level detecting device.It is built-in in order to detect in time Low-level probe 61 can be arranged in the exsiccosis of water tank 49 in electric pole type water-level detecting device.The low-level probe 61 setting To generate low water level signal when the height of water level in inner water-tank 49 is lower than default lowest water level, at this point, water level warning device It is set as issuing moisturizing prompting when receiving low water level signal.

It should be noted that above-mentioned default lowest water level, which refers to, can at least ensure that range hood 100 is completed once completely Cleaning operation needed for water consumption height of water level.Therefore, minimum water is preset when the height of water level in inner water-tank 49 is lower than When position, that is, show that inner water-tank 49 is in exsiccosis, at this time blower cleaning system cisco unity malfunction, it need to be immediately to built-in water Case 49 carries out moisturizing.

Further, it in order to detect the spilling water state of inner water-tank 49 in time, can be filled in electric pole type water level detecting Center high-level probe 62.The high-level probe 62 is set as being higher than default highest when the height of water level in inner water-tank 49 High water level signal is generated when water level, water level warning device is set as issuing spilling water prompting when receiving high water level signal.As it can be seen that working as When water level in inner water-tank 49 is excessively high, water level warning device can remind user to stop moisturizing in time, to avoid the occurrence of water The case where case spilling water.

Specifically, high-level probe 62 and low-level probe 61 can be hung on to the roof of inner water-tank 49.Due to examine The height of water level of survey is different, and the bottom end of low-level probe 61 is arranged lower than the bottom end of high-level probe 62 at this time.

Since electric pole type water-level detecting device belongs to electronic component, it is chronically in moist working environment and has out The risk of existing fault failure.When the failure of electric pole type water-level detecting device, blower cleaning system is difficult to reliably run again.

For this purpose, water-level detecting device may also include mechanical overflow detection device.The mechanical overflow detection device only leads to Mechanical structure cooperating is crossed, therefore will not break down or fail due to being chronically under wet environment, it can be with electric pole type Water-level detecting device is used cooperatively, and forms the water-level detecting device of dual fail-safe, further increases the reliability of range hood 100.

As shown in figure 26, anti-overflow floating block component 63 is equipped in mechanical overflow detection device.The anti-overflow floating block component Floating block in 63 can be increased when the height of water level in inner water-tank 49 reaches fillet height to close the water of inner water-tank 49 Case water inlet 491.Wherein, which is higher than default peak level above-mentioned.It is blocked in water tank inlet 491 by floating block Afterwards, user can be observed the water level in drainage box 15 and stop decline, i.e., has sufficient water in prompting user's inner water-tank 49 It works for blower cleaning system, to prevent user from continuing to add water and cause spilling water.

Specifically, anti-overflow floating block component 63 can be articulated on the internal perisporium of inner water-tank 49.When in inner water-tank 49 Water level water tank inlet 491 when being increased to, the floating block in anti-overflow floating block component 63 can be increased based on hinge joint rotation with Block water tank inlet 491.

In addition, also overflow pipe 492 can be connected at the top of inner water-tank 49, when the water level in inner water-tank 49 is excessively high, Extra water energy is enough to be discharged through overflow pipe 492, it is preferable that the bottom end of the overflow pipe 492 can be connected to the oil of range hood 100 In box 8.

Preferred embodiments of the present invention, still, the utility model and unlimited are described in detail in conjunction with attached drawing above Detail in above embodiment can be to the skill of the utility model in the range of the technology design of the utility model Art scheme carries out a variety of simple variants, these simple variants belong to the protection scope of the utility model.

It is further to note that specific technical features described in the above specific embodiments, in not lance It in the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the utility model is to each No further explanation will be given for the possible combination of kind.

In addition, any combination can also be carried out between a variety of different embodiments of the utility model, as long as it is not disobeyed The thought for carrying on the back the utility model, equally should be considered as content disclosed in the utility model.

Claims (10)

1. a kind of blower, including spiral case (2) and the impeller (3) being set in volute chamber, which is characterized in that the blower also wraps Transmission mechanism is included, the transmission mechanism is for driving spiral case bottom phase of the wheel bottom of the impeller (3) with the spiral case (2) To close to mobile.

2. blower according to claim 1, which is characterized in that the blower includes impeller motor (32), the impeller electricity Machine (32) is coaxially mounted to the rear end of the impeller (3) to drive the impeller (3) rotation, the spiral case (2) and the impeller One of them in motor (32) is fixation member, and another one is moving parts, and the transmission mechanism connects and drives the shifting Dynamic component is mobile relative to the fixation member.

3. blower according to claim 2, which is characterized in that the transmission mechanism is elevating mechanism, is arranged in the snail The rear of shell (2).

4. blower according to claim 3, which is characterized in that the elevating mechanism is for balladeur train elevating mechanism and including vertical Fixed rack (72) and the mobile balladeur train (71) being fixedly connected with the moving parts, the vertical fixed rack (72) and institute It states fixation member to be fixedly installed, the mobile balladeur train (71) can slide along the vertical fixed rack (72).

5. blower according to claim 4, which is characterized in that the vertical fixed rack (72) includes left vertical fixed cunning Rail (721) and right vertical fixed rack (722), the rear end sides of the spiral case (2) be respectively equipped with left ear hinge mounting portion (27) and Auris dextra cuts with scissors mounting portion (28), and the mobile balladeur train (71) is A-frame dissipate along center and including left support bar (711), the right side Cradling piece (712) and vertical supports bar (713), the left support bar (711) and right support bar (712) are respectively equipped with and the left side The left slider (714) and the right side being slidably matched with the right vertical fixed rack (722) that vertical fixed rack (721) is slidably matched The end of sliding block (715), the left support bar (711) and right support bar (712) respectively with left ear hinge mounting portion (27) and Auris dextra hinge mounting portion (28) is fixedly connected, and the vertical supports bar (713) is equipped with for driving mobile balladeur train (71) phase The lift drive mechanism vertically slid for the vertical fixed rack (72).

6. blower according to claim 5, which is characterized in that the lift drive mechanism is motor-driven feed screw nut Mechanism, the vertical supports bar (713) are connected on the travelling nut of the leading screw and nut mechanism.

7. blower according to claim 4, which is characterized in that the impeller motor (32) is double-rotor machine, the leaf The rear shaft of turbin generator (32) drives the mobile balladeur train (71) to slide along the vertical fixed rack (72).

8. blower according to claim 4, which is characterized in that the rear end of the impeller motor (32) is equipped with motor fixing frame (33), the motor fixing frame (33) include hoop portion (331) and extended radially from the hoop portion (331) and circumferentially between Every multiple connection ears (332) of distribution, impeller motor (32) fixing sleeve is interior loaded on the hoop portion (331), the shifting Dynamic balladeur train (71) and multiple connection ears (332) form Mulit-point Connection.

9. the blower according to any one of claim 4~8, which is characterized in that the mobile balladeur train (71) is described Sliding stroke on vertical fixed rack (72) is less than the radius between the outer diameter of the impeller (3) and the internal diameter of the volute chamber Difference.

10. a kind of range hood, which is characterized in that the range hood (100) include according to claim 1~9 in it is any one Blower and blower cleaning system described in, the blower cleaning system can be under blower cleaning state to the spiral case (2) bottom cavity injects cleaning solution (48).