CN208831348U - Blower and range hood - Google Patents

Abstract

The utility model discloses a kind of blower and range hoods, blower includes spiral case (2), the impeller (3) being built in volute chamber and water storage box (1), the liquid storage chamber (11) for accommodating cleaning solution is equipped in the water storage box (1), the bottom blade of the impeller (3) can be at least partially submerged in the cleaning solution.Wherein, the bottom shell body of the spiral case (2) is preferably non-pressurized body.The bottom of the spiral case (2) is preferably contained in the liquid storage chamber (11) of opening upwards, and the interconnected bottom cavity can be flushed with the respective liquid level of the liquid storage chamber (11).The utility model effectively accepts cleaning solution by adding water storage box, prevents from leaking out from spiral case bottom, reduces manufacture and the seal request of spiral case, spiral case cost is effectively reduced.

Description

Blower and range hood

Technical field

The utility model relates to range hood fields.

Background technique

Range hood when in use, by centrifugal fan quickly aspirates the oil smoke generated during culinary cuisine side by side Out outside room, to prevent oil smoke from spreading, environmental pollution is caused.Wherein, oil smoke all passes through centrifugal fan and is discharged by air hose, The impeller being arranged in the spiral case of centrifugal fan contacts more with oil smoke, causes impeller surface to gather a large amount of greasy dirts, needs periodically Maintenance, cleaning.

Existing impeller cleaning mostly uses stop cleaning mode, the external water tank equipped with cleaning solution by feed pipe supply water to Jet pipe, the heating devices heat cleaning solution in feed pipe are cleaned, cleaning jet pipe protrudes into spray cleaning impeller, cleaning solution in volute chamber It comes together in the bottom cavity of volute chamber, is then discharged.Wherein, it is polluteed in the casing of kitchen ventilator to avoid cleaning solution from leaking out Portion requires very high, the especially leakproof water-stop of spiral case bottom for the sealing performance of spiral case, increases the manufacture difficulty of spiral case And production cost.

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, convenient Impeller cleaning reduces spiral case manufacturing cost.

To achieve the above object, the utility model provides a kind of blower, including spiral case and the leaf being built in volute chamber Wheel, the blower further includes water storage box, and the liquid storage chamber for accommodating cleaning solution, the bottom of the impeller are equipped in the water storage box Blade can be at least partially submerged in the cleaning solution.

After adding water storage box, the bottom shell body of the spiral case is preferably non-pressurized body, so as to reduce spiral case Technology difficulty and manufacturing cost.Selectively, the outer housing of the spiral case can be the metal shell of muti-piece splicing.

Selectively, the water storage box may be provided in the bottom cavity of the volute chamber.

Selectively, the water storage box may also be arranged on the outside of the volute chamber, so that the bottom of the volute chamber holds Chamber and the liquid storage chamber are interconnected.Liquid storage chamber and bottom cavity can through hole or gap area, can also pipeline connection, to realize Mutual fluid communication.

Wherein selectively, the bottom shell of the spiral case can be formed with the impeller through hole that can be opened and closed, and impeller can be worn Impeller through hole is crossed to immerse in liquid storage chamber downwards.

Or selectively, the bottom shell of the spiral case be formed with the sepage through hole for being connected to the liquid storage chamber and/or Sepage gap.

Preferably, the bottom of the spiral case is contained in the liquid storage chamber of opening upwards, the interconnected bottom Cavity can be flushed with the respective liquid level of the liquid storage chamber.That is spiral case bottom is immersed in liquid storage chamber substantially, is realized by water storage box To the environmental sealing of spiral case bottom.

When spiral case bottom cavity is flushed with the liquid level of liquid storage chamber, the impeller includes minimum in bottom extreme lower position Bottom blade, the height and position of the top end face of the liquid storage chamber are not less than the height position on edge on the blade of the minimum bottom blade It sets.In this way in cleaning, turned round by impeller, it is capable of washing to whole impeller blades.

Wherein preferably, the difference in height on the blade of the top end face of the liquid storage chamber and the minimum bottom blade between No more than the half of the blade height of the minimum bottom blade, spray is generated to avoid wheel rotation agitation cleaning solution and is splashed out.

Similarly, the spiral case end face of the spiral case is equipped with spiral case air inlet, and the week edge of the spiral case air inlet is equipped with air inlet ring, The height and position of the top end face of the liquid storage chamber is preferably not higher than the height and position of the lowermost end of the air inlet ring.

The water storage box is fixedly attached on the outer wall of the spiral case, is also fixedly attached on the outer wall of spiral case.

Preferably, the cavity molded line of the liquid storage chamber and the outer profile molded line of the bottom of the spiral case are identical, the water storage Box is adaptedly set in outside the bottom of the spiral case.

In a kind of preferred constructive form, the water storage box includes crowding around box body front end-plate, the box to form the liquid storage chamber Body end plate and curved plate, the axial direction arranged for interval of the box body front end-plate and box body end plate along the impeller, institute State the respective base arcuate edge that curved plate connects the box body front end-plate and box body end plate.

The water storage box is preferably integrally formed box body, especially light, the inexpensive, plastic box body that is sealed.Institute The bottom wall for stating liquid storage chamber can be equipped with bottom end opening, and the bottom end opening can be connected with the hose extended downwardly, set on the hose There is pinch valve.Ultrasonic cleaning equipment can be also equipped in the liquid storage chamber, to enhance cleaning effect.

In addition, when the bottom part down of the spiral case is arranged in the water storage box, the water storage box can vertically move and/or The impeller can be moved vertically with close to each other.Similarly, the spiral case may be configured as vertically moving.Also can in this way So that impeller blade, which immerses, completes cleaning in cleaning solution.

In a kind of embodiment of water storage box, the spiral case is split type structure and the spiral case ontology including top is under The spiral case water-accepting part of the water storage box as described in portion, the spiral case ontology and the spiral case water-accepting part are spliced into complete spiral case.Cause This, spiral case ontology can simplify processing, and seal request is low, reduce cost.Preferably, the spiral case water-accepting part is the one of sealed bottom Body formed plastic part, the spiral case ontology are metal plate splice.

Selectively, the spiral case water-accepting part can be fixedly installed, and be spliced into complete spiral case with the spiral case ontology.

Selectively, the spiral case water-accepting part being capable of the relatively described spiral case ontology vertically lifting moving.Specifically, spiral case Water-accepting part can vertically be slid by balladeur train.

On the basis of above-mentioned blower, the utility model additionally provides a kind of range hood, and the range hood includes this The above-mentioned blower of utility model.

In the range hood, including blower cleaning system, the blower cleaning system includes feed pipe and return pipe, Feed pump, heating device and the cleaning jet pipe for protruding into volute chamber are successively arranged on the feed pipe, described in the return pipe connection Liquid storage chamber is simultaneously equipped with back water pump.

Selectively, the back water pump is suction pump and is arranged outside the water storage box.

Selectively, the back water pump is preferably the booster pump being not easy to plug and is arranged in the water storage box, the storage The liquid level of the cleaning solution of sap cavity should not have the back water pump.Specifically, the back water pump is connected with return pipe, and the return pipe can It upwardly extends section including what is stretched out upwards from the water outlet of the back water pump and is crossed out from the top for upwardly extending section Be laterally extended section；

Wherein, relative to the minimum bottom point of liquid storage chamber, the liquid level of the central axis of the back water pump is C, the storage The surface level height of sap cavity is H, and the liquid level difference being laterally extended between section and the central axis of the back water pump is B preferably meets: H-C < B.

Preferably, the upstream end of the feed pipe can also connect running water pipe, and the bottom end of the return pipe can be connected to outer Portion's sewage pipe helps to realize automation control to reduce the artificial participation of impeller cleaning.

In the blower of the utility model, the water storage box of cleaning solution is accepted due to being additionally arranged, to be no longer required for spiral case bottom The high leakproofness in portion reduces production cost to simplify the technique that designs and manufactures of spiral case.Mounting structure letter after water storage Single, low in cost, practicability is high, is particularly suitable for being applied in the range hood with centrifugal fan.

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 perspective view according to the water storage box of first preferred embodiment of the utility model；

Fig. 2 is according to the structural schematic diagram of the hydraulic press of first preferred embodiment of the utility model, wherein using Water storage box shown in FIG. 1；

Fig. 3 is the structure principle chart of the blower cleaning system in Fig. 2；

Fig. 4 is the independent enlarged drawing of the fan section in Fig. 2；

Fig. 5 is the structural schematic diagram of back water pump, return pipe in water storage box and storage chamber in Fig. 2 etc., return water therein Pump is booster pump；

Fig. 6 is the perspective view according to the water storage box of second preferred embodiment of the utility model；

Fig. 7 is the perspective view of the water storage box and seperated volute structure according to the third preferred embodiment of the utility model；

Fig. 8 illustrates the perspective view of water storage box and its elevating mechanism in Fig. 7；And

Fig. 9, Figure 10 are the structural schematic diagram of the hydraulic press of the second preferred embodiment according to the present utility model, wherein Range hood be mounted with water storage box and its elevating mechanism shown in Fig. 8, Fig. 9 illustrates the rear portion of range hood, and Figure 10 is shown The front of range hood.

Description of symbols:

1 water storage box, 2 spiral case

3 impeller, 4 impeller motor

5 cleaning 6 heating devices of jet pipe

7 feed pump, 8 water tank

9 back water pump, 10 lubricating cup

11 liquid storage chamber, 12 box body front end-plate

13 box body end plate, 14 curved plate

15 box body mounting portion, 16 bottom end opening

17 pinch valve, 18 ultrasonic cleaning equipment

19 bottom liquid mouth, 20 oil discharge outlet

21 air inlet ring, 22 spiral case ontology

23 spiral case water-accepting part, 24 mounting bracket

25 bracket slide, 26 fixed rack

27 push-rod electric machine, 28 impeller motor bracket

The minimum bottom blade of 29 controller 31

91, which upwardly extend section 92, is laterally extended section

100 casings

The center of circle O bottom centre O '

The height and position on edge on the blade of the minimum bottom blade of h1

The height and position of the top end face of h2 liquid storage chamber

The height and position of the lowermost end of h3 air inlet ring

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 " be with On the basis of the range hood of normal mounting shown in the drawings either for it is vertical, vertically or on gravity direction for each portion Part mutual alignment relation describes word.

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

As shown in Fig. 1, Fig. 6, the utility model discloses a kind of water storage box 1 (or water receiver) structure first.The water storage Box is suitable for being arranged in the bottom of all kinds of containers such as spiral case, to contain the leakage of container, the sealing performance of hoisting container bottom.Its In, referring to Fig. 6, liquid storage chamber 11 is formed in the box body of water storage box 1, water storage box 1 is placed as opening upwards, and the top of liquid storage chamber 11 End opening is formed as the suit mouth of flared, so that water storage box 1 be facilitated to be set in container (such as spiral case 2 upwards by being set with mouth Deng) bottom outside, as shown in Figure 4.

When water storage box 1 is sleeved on outside the bottom of container, protective case can be used as to enhance the structural reliability of container, it can also Carrying support and the position-limiting action to container are played, but more crucial be can be by the closed liquid storage chamber 11 in bottom to contain liquid The fluid that the bottom of body, especially container leaks out, oozes out.In this way, requiring to substantially reduce to the sealing structure of container itself, make Process simplification is made, can effectively reduce manufacturing cost.

By taking spiral case as an example, spiral case 2 is usually metal shell, needs to turn around into the specific shape such as involute, processing is wanted Ask high, precision is high, and since volute chamber needs water storage to clean impeller 3, thus to the requirement of the fluid tightness of spiral case bottom cavity Also high, sealing technology is complicated, all greatly improves the processing and manufacturing cost of spiral case 2 in this way.But after being additionally arranged water storage box 1, snail The leak of shell chamber can flow directly into liquid storage chamber 11, therefore spiral case 2 no longer needs to excessively focus on its sealing performance, can be largely The manufacturing process and reduction processing cost of upper abbreviated volute.

In Fig. 1, preferred embodiment shown in fig. 6, the box body of water storage box 1 is for board-like splicing construction and including crowding around shape At the box body front end-plate 12, box body end plate 13 and curved plate 14 of liquid storage chamber 11, box body front end-plate 12 and box body end plate 13 In the mirror-image arrangement of front and back parallel interval, box body front end-plate 12 and box body end plate 13 all have the base arcuate edge of diagram, arc The front and back side of bottom plate 14 is separately connected the respective base arcuate edge of box body front end-plate 12 and box body end plate 13.

It should be noted that the water storage box 1 of diagram is to be applied in the specific use occasion of 2 bottom of spiral case, thus water storage The shape of box 1 and the shape adaptation of spiral case bottom.It, can be with it will be appreciated that when water storage box 1 is applied to other different occasions With any other matched shape.

Specifically, in Fig. 6, the center of circle O ' of the base arcuate edge of curved plate 14 should be located above, i.e. the top of liquid storage chamber 11 The top of end opening, enables the shape adaptation of the base arcuate edge of water storage box 1 and the profile side of spiral case bottom.In such as Fig. 4 institute In the installation diagram shown, if curved plate 14 is bonded the wall surface of spiral case bottom, the center of circle O ' of curved plate 14 and spiral case center Approximate location overlapping.

In the embodiment illustrated in fig. 4, it is adaptedly set with to be formed, the arc radius of curved plate 14 should be not less than spiral case bottom The profile radius of wall, while in view of the height of water level of water storage box 1 is unsuitable too small, it is otherwise difficult to be dipped into impeller 3, water storage box 1 Height of water level also should not be too large, be otherwise easy to produce water spillage, also avoid blower use when due to spiral case end face air inlet It is blocked and area reduction by water storage box 1, and then influences intake, therefore the arc chord angle of the base arcuate edge of curved plate 14 is preferably Not less than 60 ° and it is not more than 120 °.It is highly preferred that the foreign steamer profile of the bottom of the cavity bottom edge molded line of liquid storage chamber 11 and spiral case 2 Line is roughly the same, then water storage box 1 can be adaptedly set in outside the bottom of spiral case 2, when suit, can paste between water storage box 1 and spiral case 2 It closes or is spaced apart.In Fig. 4, the top end opening of liquid storage chamber 11 is formed as rectangle plane opening, so that liquid level is controllable, top is opened The week edge of mouth can be formed with the box body mounting portion 15 of lateral flanging, in order to which water storage box 1 to be fixedly installed on 2 outer wall of spiral case Or it is fixedly installed to the casing 100 of range hood.

In the process of spiral case 2, if Fig. 1, water storage box shown in fig. 61 can by dry plate (i.e. box body front end-plate 12, Box body end plate 13 and curved plate 14) simple concatenation is composed.But consider leakproofness, curved plate 14 and box body front end Plate 12 and box body end plate 13 should all form seamless connection.If water storage box 1 is metal case, base arcuate edge needs are sealed Soldering.But preferably, the box body of water storage box 1 can be integrated injection molding part, in this way, the cavity peripheral wall of liquid storage chamber 11 can Be formed as circumferential surface sealed wall, leak will not be generated.On this basis, the bottom shell body of spiral case 2 then can be and can seep water outward Non-pressurized body, i.e. the bottom shell of spiral case 2 can be formed with sepage through hole and/or sepage gap etc. of connection liquid storage chamber 11 Deng.

Further, in water storage box 1 shown in Fig. 6, the bottom wall of liquid storage chamber 11 is additionally provided with the bottom end of belt switch control valve Opening 16.Bottom end opening 16 is provided with the liquid discharge control being conducive to liquid storage chamber 11.

In a kind of scheme of simple possible, bottom end opening 16 can be connected with the hose extended downwardly, such as Fig. 2, Fig. 3 institute Show.At this point, switching control pilot can be the pinch valve 17 being clamped on hose.When liquid storage chamber 11 needs to accumulate liquid, can lead to It crosses pinch valve 17 and the liquid level of liquid storage chamber 11 is maintained in certain altitude liquid level the clamping action of hose.

In addition, the liquid in liquid storage chamber 11 can be different types of liquid, such as oil and water etc., need to classify row Out.At this point, switching control pilot can be designed as multiple-way valve, such as triple valve form shown in Fig. 3.After triple valve installation, into Mouth end is the bottom end opening 16 of liquid storage chamber 11, and the outlet end of triple valve includes for importing cleaning solution or discharge storage to liquid storage chamber 11 The oil discharge outlet 20 of the bottom liquid mouth 19 of the cleaning solution of sap cavity 11 and the oil liquid for being discharged in liquid storage chamber 11.It is normal in range hood When work, normally opened oil discharge outlet 20 greasy dirt of the discharge of lubricating cup 10 downwards can be passed through.Under the off working state of range hood, it can close Oil discharge outlet 20 is closed, such as the pinch valve 17 on the hose for being connected to oil discharge outlet 20 is clamped.Bottom liquid mouth 19 can be used for selectivity Discharge cleaning solution is passed through cleaning solution.

Wherein, the oil drain passage that is formed between bottom end opening 16 and oil discharge outlet 20 should straight down, in favor of downwards 10 oil extraction of lubricating cup is dirty.

It further, is the switching for being easy to implement automatic control, electromagnetism of the triple valve preferably with electromagnet Switching control pilot.

For above-mentioned water storage box 1 when being applied to range hood, water storage box 1 has passed through top suit muzzle loaded on spiral case 2 Bottom, as shown in Figures 2 to 4.At this point, the bottom wall of liquid storage chamber 11 is equipped with the bottom end opening 16 of belt switch control valve, bottom end opening 16 can be connected with the hose extended downwardly towards lubricating cup 10, and clamping has the pinch valve 17 as switching control pilot on hose, with control Greasy dirt in system discharge blower.

When the bottom shell body of spiral case 2 is non-pressurized body, cleaning solution of bottom volute chamber etc. can flow into water storage box 1 In liquid storage chamber 11, bottom end opening 16 at this time can be equipped with the triple valve as switching control pilot, which includes bottom liquid mouth 19 and oil discharge outlet 20, oil discharge outlet 20 be connected to the lubricating cup 10 of range hood, bottom liquid mouth 19 is connected with return pipe or feed pipe.

In conventional blower cleaning system, blower cleaning system includes water tank 8,5 and of cleaning jet pipe for protruding into volute chamber Water storage box 1, connection water tank 8 and cleans on the feed pipe of jet pipe 5 and is provided with feed pump 7 and heating device 6, and feed pump 7 is by water tank 8 Cleaning solution be pumped to heating device 6, the cleaning to spray cleaning impeller 3, after spray is sprayed from cleaning jet pipe 5 after heating Liquid comes together in the cavity of spiral case bottom, i.e., can be by being equipped with the return pipe of back water pump 9 for liquid storage in the liquid storage chamber 11 of water storage box 1 The cleaning solution of chamber 11 is led back in water tank 8 to reuse.

Certainly, above to carry out expansion discussion only for the certain applications being applied in range hood for embodiment.? In different applications, the water storage box 1 equipped with bottom end opening 16 can have different applications, and bottom end opening 16 is settable corresponding Different type valve member and runner.

In addition, water storage box structure can be further improved when water storage box 1 shown in FIG. 1 is applied to range hood to obtain more Excellent scavenging effect.As shown in fig. 6, the water storage box 1 compared to Fig. 1, is additionally arranged ultrasonic cleaning equipment 18, is shaken by ultrasonic wave It is dynamic, drive cleaning solution preferably to clean impeller 3, spiral case wall etc., to obtain higher cleaning efficiency and cleaning effect.

The liquid storage chamber 11 for accommodating cleaning solution is equipped in water storage box 1,1 fixing sleeve of water storage box is loaded on the bottom of spiral case 2, storage The bottom cavity of sap cavity 11 and volute chamber is interconnected, and ultrasonic cleaning equipment 18 is for driving cleaning solution to spiral case 2, impeller 3 It is cleaned Deng ultrasonic wave driving is carried out.

The composition of ultrasonic cleaning equipment 18 generally comprises control chip, supersonic generator and ultrasonic transducer etc., Ultrasonic transducer is configured as generating the vibration of high frequency when receiving the high frequency electrical signal of supersonic generator output, thus Cleaning solution is driven to generate sustained vibration, fluctuation.Specifically, it can be equipped with piezoelectric element in ultrasonic transducer and be connected to piezoelectricity member The oscillating plate of part.Wherein, piezoelectric element can generate inverse piezoelectric effect, i.e., apply voltage in the polarization direction of the piezoelectric element When, which can generate certain deformation.In other words, piezoelectric element can correspondingly make height when receiving high frequency electrical signal The vibration of frequency.

Further, in order to ensure piezoelectric element generate high-frequency vibration can cause in water biggish impact water flow with Reach decontamination purpose, settable one is connected to piezoelectric element and protrudes into the oscillating plate (not shown) in liquid storage chamber 11 etc..The vibration The high-frequency vibration of movable plate can conduct Yu Shuizhong in large area, to form biggish impact water flow, improve detersive efficiency.

When executing cleaning operation, touch can be passed through by control chip output operation electric signal, the operation electric signal Or the modes such as pressing trigger.The operation electric signal can be directly output to supersonic generator, and supersonic generator is converted For high frequency electrical signal and export to ultrasonic transducer, thereby executing cleaning.

It is highly preferred that low frequency of the ultrasonic frequency less than 20KHz that ultrasonic cleaning equipment 18 may include such as generation surpasses Acoustic wave transducer and the high-frequency ultrasonic transducer for being greater than 150KHz, alternately or the cleaning solution of compartment of terrain frequency conversion drive can obtain Obtain better cleaning effect.

In specific installation, ultrasonic cleaning equipment 18 is sealably flush-mounted in the cassette bottom wall mounting hole of water storage box 1, such as Shown in Fig. 6, in order to which the cabling of ultrasonic cleaning equipment 18 is arranged.At this point, the cleaning solution in liquid storage chamber 11 can rinse leaf simultaneously The blade and spiral case inside and outside wall of wheel 3.Wherein, in order to clean volute outer wall, the inner bottom wall of liquid storage chamber 11 and the bottom of spiral case 2 Preferably interval setting between periphery wall.Certainly, ultrasonic cleaning equipment 18 is also sealably flush-mounted in the bottom periphery of spiral case 2 In the spiral case wall mounting hole being arranged on wall.

In addition, ultrasonic cleaning equipment 18 is not limited to individually be arranged, can also arranged for interval it is multiple, and preferably symmetrical cloth It sets.It is filled for example, can be equipped on range hood using multiple ultrasonic cleanings that the bottom centre O of water storage box 1 is arranged symmetrically as basic point 18 are set, with the more controllable and better cleaning effect of acquisition.

Wherein, in cleaning, cleaning solution cleaning can be driven by ultrasonic activation, can also by other means, such as be led to Negative pressure device driving cleaning solution flowing cleaning is crossed, can also be rotated by driving impeller 3, to drive cleaning solution flowing cleaning, respectively Kind cleaning driving method is numerous to list herein.

It has been described in conjunction with the accompanying specific structure, principle and the application of water storage box 1 above.Hereafter in the base of above-mentioned water storage box 1 On plinth, the spiral case component or blower using water storage box 1 is further described.

As shown in Figures 2 to 4, centrifugal fan includes spiral case 2, the impeller being built in volute chamber 3 and water storage box 1, The liquid storage chamber 11 for accommodating cleaning solution is equipped in water storage box 1.Wherein, the cleaning solution in liquid storage chamber 11 can at least clean impeller 3, i.e. the bottom blade of impeller 3 can be at least partially immersed in cleaning solution and be cleaned.

As previously mentioned, cleaning solution can be accumulated in the liquid storage chamber 11 of water storage box 1, by adding water storage box 1 thus to snail Shell bottom reduces manufacturing process, difficulty and the cost of spiral case 2 without requiring higher sealing performance.Therefore, spiral case 2 bottom shell body is preferably the lower non-pressurized body of cost.For example, the outer housing of spiral case 2 can be the gold of muti-piece splicing Belong to shell, even if there are splicing gaps to meet the requirements.

Specific to the installation of water storage box 1, in one embodiment, water storage box 1 may be provided at the bottom cavity of volute chamber It is interior, i.e., on the internal perisporium of spiral case bottom cavity.Built in this in mounting means, water storage box 1, spiral case 2, between impeller 3 Assembling difficulty is larger, and cooperation machining accuracy between water storage box 1 and spiral case 2 etc. is more demanding.

It in the another embodiment that water storage box 1 is installed, is installed for external, i.e., the outer of spiral case 2 is arranged in water storage box 1 Portion, the bottom cavity and liquid storage chamber 11 of volute chamber are interconnected, cleaning solution are assembled and is filled in liquid storage chamber 11, so as to Enough contact and clean the blade of impeller 3.

When water storage box 1 is external, water storage box 1 can be fixed installation, be also possible to be arranged vertically movablely.Work as external When water storage box 1 is fixedly mounted but is not close to spiral case bottom, if the top surface of water storage box 1 is lower than the bottom blade of impeller 3 (referring to figure 4 minimum bottom blade 31), impeller 3 cannot be still cleaned at this time.Therefore in a kind of possible embodiment, the bottom of spiral case 2 Shell can offer impeller through hole (not shown), and the cover board that can be opened and closed is arranged in impeller through hole, when blower works normally, Cover plate lid hinge wheel through hole, forms complete spiral case.And under blower cleaning state, impeller 3 can be made to move down, pass through leaf Wheel through hole, which is displaced downwardly to, to immerse in liquid storage chamber 11.

Likewise, external water storage box 1 may be alternatively provided as to move up under blower cleaning state, to be bonded suit Outside spiral case bottom, and when blower works normally, one section of height distance is vertically spaced apart between water storage box 1 and spiral case 2.

Attached drawing 2 illustrates the preferred suit mode of external water storage box 1 to Fig. 4, i.e. spiral case bottom is contained in water storage substantially In the liquid storage chamber 11 of box 1, it can be bonded between spiral case bottom wall and the internal perisporium of liquid storage chamber 11, it can also there are gap each other, space, snails The bottom shell of shell 2 can be formed with sepage through hole and/or the sepage gap of connection liquid storage chamber 11, thus interconnected spiral case Bottom cavity can be flushed with the respective liquid level of liquid storage chamber 11, can be realized in this way by water storage box 1 close to the package of spiral case bottom Envelope is also convenient for control water level, realizes the cleaning to impeller 3.

Wherein, the sepage through hole of the bottom shell of spiral case 2 or sepage gap can be the installation on metal spiral case 2 Screw hole, splicing gap, weld seam etc..

In the present embodiment, pass through the rotating forward of impeller 3, reversion, high low speed alternate rotation or intermittent rotation etc., agitation Cleaning solution reaches effective cleaning to impeller blade.

Wherein, referring to fig. 4, impeller 3 includes the minimum bottom blade 31 in bottom extreme lower position, i.e. turns in Fig. 4 The impeller blade of six-o ' clock position, the liquid level that the blade of the position is cleaned liquid at first completely flood.Therefore, in order to complete Each impeller blade of impeller 3 is cleaned to, the liquid level extreme higher position of cleaning solution is the height and position of the top end face of liquid storage chamber 11, should The height and position of the top end face of liquid storage chamber 11 should be not less than the height and position on edge on the blade of the minimum bottom blade 31, i.e., extremely It is few completely to flood a bottom blade, to can completely clean to each blade when impeller 3 rotates.Referring to fig. 4, i.e. liquid storage chamber The height and position h2 of top end face should be higher than that the height and position h1 on edge on the blade of minimum bottom blade.

When being rotated due to impeller 3, impeller blade will stir cleaning solution, splash spray, or even cleaning solution part is taken away snail Shell chamber is splashed out from the spiral case air inlet of the front end face of spiral case 2.To avoid generating such case, in the present embodiment, storage is limited Difference in height on the blade of the top end face of sap cavity 11 and minimum bottom blade 31 between is not more than the leaf of minimum bottom blade 31 The half of piece height.Referring to fig. 4, i.e. the height of the height and position h2 of the top end face of liquid storage chamber and edge on the blade of minimum bottom blade The difference in height h2-h1 for spending position h1 is not more than the half of blade height.

It is further preferred that the front end face of spiral case 2 is equipped with spiral case air inlet, the week of spiral case air inlet is along equipped with air inlet ring 21, the height and position h2 of the top end face of liquid storage chamber 11 are not higher than the height and position h3 of the lowermost end of air inlet ring 21.Referring to fig. 4, i.e., H2 is not higher than h3, and 1 block of water storage box that liquid when preventing wheel rotation from cleaning splashes out and installation site is excessively high is firmly excessive Spiral case air-admitting surface, blower work normally when influence intake.

In the present embodiment, water storage box 1 can be fixedly connected on the outer wall of spiral case 2 by its box body mounting portion 15, or Person is fixedly installed in the casing 100 of range hood.After water storage box 1 is fixed, as shown in Fig. 2 to Fig. 4, it is preferable that liquid storage The cavity molded line of chamber 11 and the outer profile molded line of the bottom of spiral case 2 are identical, and such water storage box 1 can adaptedly be set in spiral case 2 Outside bottom.Certainly, liquid storage chamber 11 is also possible to rectangular cavity, and water storage box 1 is rectangular box etc..

Wherein, water storage box 1 preferably uses coaming plate structure shown in fig. 6, that is, includes before crowding around and forming the box body of liquid storage chamber 11 End plate 12, box body end plate 13 and curved plate 14, box body front end-plate 12 and box body end plate 13 are between the axial direction of impeller 3 Every arrangement, curved plate 14 connects the respective base arcuate edge of box body front end-plate 12 and box body end plate 13.It is highly preferred that water storage box 1 box body being integrally formed, especially integrated injection molding, at low cost, light weight and good seal performance.On this basis, right The sealing requirements of spiral case 2 reduce, and are simple metal plate splice.

As previously mentioned, the bottom wall of liquid storage chamber 11 can be equipped with bottom end opening 16, bottom end opening 16 can be equipped with switching control pilot with Control drain etc..In Fig. 2, the bottom of water storage box 1 is connected with the hose extended downwardly, and hose is equipped with pinch valve 17.In addition, It is additionally provided with ultrasonic cleaning equipment 18 in the liquid storage chamber 11 of the water storage box 1 of Fig. 6, in favor of promoting cleaning.

Fig. 7 illustrates the spiral case 2 and water storage box 1 of another structure type.Wherein, spiral case 2 be split type structure and including The spiral case ontology 22 on top and the spiral case water-accepting part 23 as water storage box 1 of lower part, spiral case ontology 22 and spiral case water-accepting part 23 are spelled It is connected into complete spiral case.

When spiral case 2 is split type structure, can sealing requirements to spiral case ontology 22 it is low, the leakproofness of spiral case water-accepting part 23 It is required that high.Spiral case ontology 22 is preferably sheet metal forming part, and the improved plastics structural shape that spiral case water-accepting part 23 is preferably integrated.

In one embodiment, spiral case ontology 22 can be fixedly connected with spiral case water-accepting part 23, constitute complete spiral case 2.

In another embodiment, spiral case water-accepting part 23 can be with respect to the vertically lifting moving of spiral case ontology 22.Such as Fig. 8 Shown, the bottom of spiral case water-accepting part 23 is fixed in mounting bracket 24, and mounting bracket 24 is L-shaped and horizontal component carrying spiral case connects Water portion 23, vertical portion are equipped with bracket slide 25.In fig. 8, two 25 horizontal interval of bracket slide arrangements are correspondingly provided with solid Determine sliding rail 26, fixed rack 26 is independently fixedly installed on casing 100 or other structures component, and bracket slide 25 can be matchingly It is vertically slid along fixed rack 26.

To keep the liquid level of the cleaning solution in spiral case water-accepting part 23 steady, the horizontal component of L shape mounting bracket 24 is also upward Muti-piece support plate is extended with to support the entire bottom surface of spiral case water-accepting part 23 conscientiously.

In addition, mounting bracket 24 can be pushed to go up and down by all kinds of jacking apparatus etc..In fig. 8, it is simple that materials are used Push-rod electric machine 27, push-rod electric machine 27 are arranged in the top of L shape mounting bracket 24 and suspend the vertical portion of connection mounting bracket 24 in midair, To keep sliding smooth, during the connection stress point of mounting bracket 24 and push-rod electric machine 27 is arranged between two bracket slides 25 Between position.Push-rod electric machine 27 can pull mounting bracket 24 steadily to go up and down.

Referring to Fig. 9, Figure 10, spiral case water-accepting part 23 shown in Fig. 8 and mounting bracket 24 are installed to the rear portion of blower.In general, Impeller motor 4 is fixedly installed in casing 100 by the impeller motor bracket 28 of hoop periphery wall, the peace that spiral case 2 passes through two sides Ear is filled to be fixedly mounted.Appropriate installation site is selected, 27 location and installation of fixed rack 26 and push-rod electric machine can then pass through Controller 29 controls the lifting moving that mounting bracket 24 drives spiral case water-accepting part 23.

It will be appreciated to those of skill in the art that in the embodiment that Fig. 2 to Fig. 4 is shown, water storage box 1, spiral case 2, Impeller 3 can also be each by being similar to the sliding crane of mounting bracket 24 and realizing similar to the driving mechanism of push-rod electric machine 27 From slide vertically installation, so that any height and position control etc. between any two can be realized.Such as water storage box 1 is fixed at When the bottom part down of spiral case 2, control water storage box 1 can vertically move and/or impeller 3 can vertically be moved with phase mutual connection Closely.Realize that structure and the control mode of above-mentioned control are all more, it is not reinflated thin herein due to being not the utility model emphasis It states.

As shown in Figure 2 and Figure 3, the blower cleaning system in range hood generally comprises two pipelines of feed pipe and return pipe, Be successively arranged on feed pipe from water tank 8 extract cleaning solution feed pump 7, to pumping liquid heat heating device 6 and It protrudes into the cleaning jet pipe 5 of the spray cleaning of impeller 3 in volute chamber, return pipe connects liquid storage chamber 11 and passes through 9 blowback of back water pump extremely In water tank 8, with repeated recycling utilize cleaning solution.Certainly, the upstream end of feed pipe is also connected to running water pipe, the bottom of return pipe End may also connect to external sewage pipe, to help to realize the automatic control of blower cleaning.

In Fig. 3, back water pump 9 is suction pump and is arranged outside water storage box 1, passes through the bottom liquid mouth 19 of 11 bottom of liquid storage chamber Extract cleaning solution.

In Fig. 2, Fig. 5, back water pump 9 is then preferably gap greatly and is not easy stifled booster pump, which is arranged in water storage In box 1.According to the use characteristic of booster pump, the liquid level of the cleaning solution of liquid storage chamber 11 should not there be back water pump 9.

In conjunction with Fig. 5, in a kind of specific mounting means of booster pump, the back water pump 9 (i.e. booster pump) in liquid storage chamber 11 is even Be connected to return pipe, return pipe include stretched out upwards from the water outlet of back water pump 9 upwardly extend section 91 and from upwardly extending section What top crossed out is laterally extended section 92；Wherein, on the basis of the cavity minimum point of liquid storage chamber 11, the central axis of back water pump 9 The liquid level of line is C, and the surface level height of liquid storage chamber 11 is H, is laterally extended between section and the central axis of back water pump 9 Liquid level difference is B, then should meet: H-C < B, so that booster pump obtains comparatively ideal drainage effect.

To sum up, by adding water storage box 1, facilitate the impeller cleaning of range hood, can abbreviated volute processing technology, reduce The manufacturing cost of spiral case.And water storage box 1 is not limited to be applied in spiral case 2 and range hood, is also convenient to be applied to it In his container.

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, such as shape, the shape of water storage cavity 11 of water storage box 1 are not limited to the arc-shaped of diagram, Such as water storage box 1 can be rectangular box, water storage cavity 11 is rectangular cavity, and the cleaning solution deposited in water tank 8 can be tap water, can also be with It is the cleaning solution for the detergent that band centainly matches, alternatively, there being tap water in water tank 8, and is added in the feed pipe in casing 100 There is cleaning solution adding set etc., these simple variants or extension 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 (28)

1. a kind of blower, including spiral case (2) and the impeller (3) being built in volute chamber, which is characterized in that the blower further includes Water storage box (1), the interior liquid storage chamber (11) being equipped with for accommodating cleaning solution of the water storage box (1), the bottom blade of the impeller (3) It can be at least partially submerged in the cleaning solution.

2. blower according to claim 1, which is characterized in that the bottom shell body of the spiral case (2) is non-pressurized body.

3. blower according to claim 2, which is characterized in that the outer housing of the spiral case (2) is the metal of muti-piece splicing Shell.

4. blower according to any one of claims 1 to 3, which is characterized in that the water storage box (1) is arranged described In the bottom cavity of volute chamber.

5. blower according to any one of claims 1 to 3, which is characterized in that the water storage box (1) is arranged described The outside of volute chamber, the bottom cavity of the volute chamber and the liquid storage chamber (11) are interconnected.

6. blower according to claim 5, which is characterized in that the bottom shell of the spiral case (2) is formed with and can open and close Impeller through hole.

7. blower according to claim 5, which is characterized in that the bottom shell of the spiral case (2) is formed with described in connection The sepage through hole of liquid storage chamber (11) and/or sepage gap.

8. blower according to claim 5, which is characterized in that the bottom of the spiral case (2) is contained in the institute of opening upwards It states in liquid storage chamber (11), the interconnected bottom cavity can be flushed with the respective liquid level of the liquid storage chamber (11).

9. blower according to claim 8, which is characterized in that the impeller (3) includes being in bottom extreme lower position most Low bottom blade (31), the height and position of the top end face of the liquid storage chamber (11) are not less than the leaf of the minimum bottom blade (31) The height and position on piece edge.

10. blower according to claim 9, which is characterized in that the top end face of the liquid storage chamber (11) and the minimum bottom Difference in height on the blade of portion's blade (31) between is not more than the half of the blade height of the minimum bottom blade (31).

11. blower according to claim 9, which is characterized in that entered the wind equipped with spiral case the spiral case end face of the spiral case (2) Mouthful, the week of the spiral case air inlet, the height and position of the top end face of the liquid storage chamber (11) was not higher than along air inlet ring (21) are equipped with The height and position of the lowermost end of the air inlet ring (21).

12. blower according to claim 8, which is characterized in that the water storage box (1) is connected to the outer of the spiral case (2) On wall.

13. blower according to claim 8, which is characterized in that the cavity molded line and the spiral case of the liquid storage chamber (11) (2) the outer profile molded line of bottom is identical, and the water storage box (1) is adaptedly set in outside the bottom of the spiral case (2).

14. blower according to claim 13, which is characterized in that the water storage box (1) includes crowding around to form the liquid storage Box body front end-plate (12), box body end plate (13) and the curved plate (14) of chamber (11), the box body front end-plate (12) and box body Axial direction arranged for interval of the end plate (13) along the impeller (3), curved plate (14) connection box body front end-plate (12) and the respective base arcuate edge of box body end plate (13).

15. blower according to claim 13, which is characterized in that the box body that the water storage box (1) is integrally formed.

16. blower according to claim 13, which is characterized in that the bottom wall of the liquid storage chamber (11) is equipped with bottom end opening (16), the bottom end opening (16) is connected with the hose extended downwardly, and the hose is equipped with pinch valve (17).

17. blower according to claim 8, which is characterized in that be equipped with ultrasonic cleaning equipment in the liquid storage chamber (11) (18)。

18. blower according to claim 1, which is characterized in that bottom of water storage box (1) setting in the spiral case (2) Below portion, wherein the water storage box (1) can vertically move and/or the impeller (3) can vertically be moved with phase mutual connection Closely.

19. blower according to claim 1, which is characterized in that the spiral case (2) is configured to vertically move.

20. blower according to claim 1, which is characterized in that the spiral case (2) is for split type structure and including top The spiral case water-accepting part (23) of spiral case ontology (22) and the water storage box as described in (1) of lower part, the spiral case ontology (22) with it is described Spiral case water-accepting part (23) is spliced into complete spiral case.

21. blower according to claim 20, which is characterized in that the spiral case water-accepting part (23) is the one of sealed bottom Molding plastic part, the spiral case ontology (22) are metal plate splice.

22. blower according to claim 20, which is characterized in that the spiral case water-accepting part (23) being capable of the relatively described spiral case Ontology (22) vertically lifting moving.

23. a kind of range hood, which is characterized in that the range hood includes institute according to claim 1~any one of 22 The blower stated.

24. range hood according to claim 23, which is characterized in that the range hood includes blower cleaning system, The blower cleaning system includes feed pipe and return pipe, and feed pump (7), heating device (6) are successively arranged on the feed pipe With the cleaning jet pipe (5) for protruding into volute chamber, the return pipe connects the liquid storage chamber (11) and is equipped with back water pump (9).

25. range hood according to claim 24, which is characterized in that the back water pump (9) is suction pump and is arranged The water storage box (1) is outside.

26. range hood according to claim 24, which is characterized in that the back water pump (9) is booster pump and is arranged In the water storage box (1), the liquid level of the cleaning solution of the liquid storage chamber (11) did not had the back water pump (9).

27. range hood according to claim 26, which is characterized in that the back water pump (9) is connected with return pipe, described Return pipe include stretched out upwards from the water outlet of the back water pump (9) upwardly extend section (91) and upwardly extend section from described What top crossed out is laterally extended section (92)；

Wherein, the liquid level of the central axis of the back water pump (9) is C, and the surface level height of the liquid storage chamber (11) is H, the liquid level difference being laterally extended between section and the central axis of the back water pump (9) are B, are met: H-C < B.

28. range hood according to claim 24, which is characterized in that the upstream end of the feed pipe connects tap water Pipe, the bottom end of the return pipe is connected to external sewage pipe.