CN204952575U - Air purifier - Google Patents
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- CN204952575U CN204952575U CN201520707510.2U CN201520707510U CN204952575U CN 204952575 U CN204952575 U CN 204952575U CN 201520707510 U CN201520707510 U CN 201520707510U CN 204952575 U CN204952575 U CN 204952575U
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Abstract
The utility model discloses an air purifier, including the electric fan, its characterized in that the air inlet end of electric fan be equipped with the pre -flock respectively with the air -out end and net (9) and main filter screen (16), be equipped with support (23) below this electric fan. The electric fan include shell (15), impeller (6) and motor (13), motor (13) are supported in the axle center of cylinder shell (15) through branch or several radial guide vanes branch (5), install on the output shaft of motor (13) impeller (6), impeller (6) are located the air inlet end of electric fan, guide vanes branch (5) are located the air -out end. The utility model discloses the filtration efficiency who has high efficiency, economy to can regard as simple electric fan to use.
Description
Technical field
The utility model relates to for air purification field, is specifically related to a kind of desktop air purifier.
Background technology
Too much air pollution causes a lot of relevant health problems, and therefore air filtration is very important, but existing air purifier normally noise is large, expensive, effect is low and/or efficiency is low.The customization that many air cleaners must use our company to produce, strange size or peculiarly shaped screen pack, make these companies can excessively to raise the price removable screen pack, add the use cost of consumer.If because the reasons such as manufacturer's bankruptcy can not buy these screen packs, whole system will have been caused not use and to go out of use.In addition, existing air purifier generally can not be used as the electric fan of enjoying the cool.
Summary of the invention
The utility model overcomes the deficiency that prior art exists, and provides one to have efficient filter efficiency, and easy for installation, economical and practical air purifier.This air purifier can also use as simple electric fan easily.
The technical solution of the utility model is: a kind of air purifier, comprise the axial-flow type electric fan be made up of shell, impeller and motor, motor by radial guide vane or strut support in the axle center of cylindrical housing, impeller is arranged on the output shaft of motor, below this shell, be provided with bearing, it is characterized in that, the filter screen room of U-shaped is housed in one end of shell, it is indoor that main filter screen is slidably mounted on this filter screen, in one end of this filter screen room, top cover is housed.
Between the outlet air end and main filter screen of described shell, diffuser is housed, diffuser is conical, and the outlet air end of its osculum end and shell is connected, and big opening end is circular or square, and is connected with described filter screen room.
In the upstream of main filter screen, pre-filter screen is housed.Height and levelness adjuster (11) is provided with below described bearing.
Be provided with flaring air intake flow-guiding mouth at the air intake of described shell, the axial cross section of this air intake flow-guiding mouth is streamlined.
Described motor is provided with motor cover, described motor cover is the smooth-shaped of half ellipsoid or other continuous curvatures, on the inner ring that the opening of front end is fixed on guide vane or pole or strut support, the oval top of rear end, towards the outlet air end of electric fan, this motor cover is provided with air vent.
Handle is provided with in the upper end of described shell.
Described guide vane or pole are provided with more than two, and be uniformly distributed along the circumference, its root and top are connected on inner ring and outer shroud, expanding part inside shell described in this outer shroud of motor described in loading in this inner ring embeds, and make the inner peripheral surface of this outer shroud concordant with the inner peripheral surface of the non-expanding part inside shell.
Also comprise the safe grid identical with described main filter screen appearance and size, for being replaced main filter screen in the electric fan use procedure of enjoying the cool merely.
Compared with prior art, the utility model has the following advantages:
1. the meticulous aerodynamic design of energy-conservation-fan, guide vane, diffuser, air inlet and motor cover makes system reach high flow capacity, the effect of low energy consumption.
2. the rate of filtration of efficient-experimental verification the utility model air purifier can reach more than 3 cubic meters per minute.
3. low cost filter screen replacement-screen pack of the present utility model has standard size and shape, easily commercially bought with low price by multiple supplier.
4. easy to clean-the utility model is easy to clean, and only need unclamp a screw can take out reusable prefilter, and is rinsed well with clear water; Main filter screen is released from filter screen room, then with wet each inner surface of cloth wiping and blast fan, guide vane etc.
5. easy screen replacing-screen pack is easy to change, and boosts the top cover of filter screen room, extracts old screen pack out, slip into new screen pack.Without the need to loosening any screw.
6. efficient desktop electric fan-with after safe grid replacement filter screen, run.
7. mobility-the utility model compact conformation, lightweight, the handle can carrying its upper end moves easily.
Accompanying drawing explanation
Fig. 1 is the stereo decomposing structural representation of the embodiment of a kind of easy structure of the utility model;
Fig. 2 is the perspective view that a upper embodiment fits together;
Fig. 3 is the stereo decomposing structural representation of the utility model impeller, motor, motor cover and guide vane;
Fig. 4 is the perspective view in Fig. 3 after each assembling parts;
Fig. 5 is the structural representation in the front (towards air intake) of impeller embodiment of the present utility model;
Fig. 6 is the left view of Fig. 5;
Fig. 7 is the pattern curve figure on blade four limit (leading edge, trailing edge, blade root and top) of the utility model impeller;
Fig. 8 is the pattern curve figure of the curved surface of the blade of the utility model impeller;
Figure 11 is the stereo decomposing structural representation of a kind of energy-saving efficient embodiment of the utility model;
Figure 12 is package assembly stereogram embodiment illustrated in fig. 11;
Figure 13 is front (outlet air end) structural representation embodiment illustrated in fig. 12;
Figure 14 is the A-A sectional view (turning clockwise 90 °) of Figure 13;
Figure 15 is the structural representation of the another kind of height of the utility model and levelness governor motion (side);
Figure 16 is the Radial pressure distribution curve map of different fans;
Figure 17 is the perspective view of the safe grid of the utility model;
Description of reference numerals:
1-handle; 2-top cover; 3-filter screen framework; The pre-filter screen of 4-() frame; 5-guide vane/pole; 6-impeller; 7-flow-guiding mouth; 8-rotational speed regulation button; The pre-filter screen of 9-; 10-lid; 11-height and levelness adjuster; 12-electric appliance control box; 13-motor; 14-motor cover; In 141-(motor cover) air vent; 15-circular short tube road; The main filter screen of 16-; 17-inner ring; 18-outer shroud; 19-motor wire conduit; 23-bearing; 24-diffuser; 28-blade inlet edge; 29-trailing edge; 30-root of blade; 31-blade tip; 32-spoon of blade; 33-takes turns nave collar; 34-fairing cap; On 341-(fairing cap) air vent; 35-air inlet; 36-air port ring; The safe grid of 37-; 39-timer adjusting knob.
Detailed description of the invention
, simple type embodiment
The embodiment of the simple type of a kind of air purifier of the utility model, see Fig. 1, Fig. 2, comprise axial-flow type electric fan, this electric fan comprises shell 15, pole 5, impeller 6 and motor 13, motor 13 in the axle center of cylindrical housing 15, has a pole to be hollow, as motor wire conduit 19 by pole 5 coaxial support of several radial direction in pole 5, extend from electric appliance control box 12 to motor 13 safely for supply lines, and not rough air.The lid 10 of electric appliance control box 12 is provided with rotational speed regulation button 8, and timer adjusting knob 39.Electric appliance control box 12 is located on motor 13 or bearing 23.
Impeller 6 is arranged on the output shaft of motor 13, pre-filter screen 9 is housed respectively and main filter screen 16(only can establish main filter screen 16 at the upstream and downstream of described impeller 6), pre-filter screen 9 preferentially selects stainless steel filament net, and main filter screen 16 preferentially selects the efficient filter screen of HEPA.Bearing 23 is provided with below this electric fan.Height and levelness adjuster 11 is provided with below described bearing 23.The height of this embodiment and levelness adjuster 11 form the leg be symmetrical set (bolt) by two, and leg is connected with 23 of bearing by screw thread, and the trace realizing height and levelness by rotating leg regulates.Under specific circumstances, the inside and outside sleeve pipe that also can also stretch by setting with each other has been assisted and has highly been regulated.The edge of pre-filter screen 9 is generally provided with frame 4.
Operationally, air is from outside first by pre-filter screen 9, and the larger particles in filtered air, prevents fibre object and bulky grain dust from blocking the main filter screen 16 of air downstream too early for the utility model.Meanwhile, pre-filter screen 9 also has the effect of protection and reduces the effect of turbulent flow, and experiment shows, the aerodynamic losses relevant to pre-filter screen 9 is reduced the turbulent efficiency improving impeller by pre-filter screen 9 and offset.
As shown in Figure 1, Figure 2, in Figure 11-14, shown embodiment, filter screen framework 3 and main filter screen 16 are square.In addition, filter screen framework 3 and top cover 2 also prevent air-flow from surrounding's leakage of main filter screen 16, prevent unfiltered air leakage to indoor, reduce integrated air quality.The top cover 2 of simple type embodiment can with handle (1) for pivot upset.
Main filter screen 16 is arranged in described filter screen framework 3 frame with ground structure for convenience detach, as filter screen framework 3 for U-shaped is also provided with slot within it, main filter screen 16 inserts in the slot of filter screen framework 3, on the top of filter screen framework 3, top cover 2 is housed, top cover 2 is provided with groove as handle 1 in the face of the side of air intake.Main filter screen 16 is for convenience detach, is easy to change or cleaning.When as simple electric fan, filter screen 16 can be removed, replace safe grid 37(see Figure 17), to increase drafting efficiency.Safe grid 37 can prevent blade to be strayed into from the damage of exotic and the finger of people and to be injured by blade.The utility model also can arrange multiple layers of filters, such as, increases the pre-filter layer of non-grid formula, play pre-filtered effect in the upstream of main filter screen 16; Increase an active carbon filter net in the downstream of main filter screen 16, described active carbon filter net, in the downstream of highly effective air filter screen, has the effect of the harmful chemical gas of absorption and peculiar smell.
, heavy duty detergent embodiment additional information
See Figure 11-Figure 14, this embodiment of the utility model adds air intake flow-guiding mouth 7, diffuser 24, motor cover 14, balance weight 26, Novel axial fan impeller 6, novel guide vane 5 on the basis of a upper embodiment.Because of the inventive point of Novel axial fan impeller 6 and novel guide vane 5 and experimental verification length longer, finally describe so be placed in application.First, air intake flow-guiding mouth 7, diffuser 24, motor cover 14, balance weight 26 concrete structure and effect are described below:
Between the frame 4 and shell 15 of described pre-filter screen 9, flaring air intake flow-guiding mouth 7 is housed, the axial cross section of this air intake flow-guiding mouth 7 is streamlined, its big opening end is provided with the annulus with axes normal, and is connected between described frame 4 and the air intake of shell 15.The stream that the streamlined design of described air intake flow-guiding mouth 7 can prevent air from entering before shell 15 contracts (venacontracta), and stream contracting can reduce the aerodynamic efficiency of the vane tip of impeller 6.Therefore, the air intake flow-guiding mouth 7 with streamline shape makes air-flow enter the air intake of shell 15 smoothly, makes air-flow accelerate simultaneously, and avoids air-flow to be separated from the inner wall surface of shell 15 inlet end, and efficiency of the present utility model is improve several percentage points.The frame 4 of this embodiment is identical with a upper embodiment.
Between the outlet air end and main filter screen 16 of described shell 15, diffuser 24 is housed, diffuser 24 is conical, the outlet air end of its osculum end and shell 15 is connected, big opening end is squarely (may also be other regular shapes, as circle), be connected with square filter screen framework 3, described main filter screen 16 is arranged in this filter screen framework 3 with ground structure for convenience detach equally.If the too short meeting of diffuser 24 causes the segregation phenomenon of air-flow, thus causes efficiency to decline.If diffuser 24 is long, system by being difficult to being placed on windowsill/leg of shelf on balance-seeking.Generally speaking, the diffusion area of diffuser 24 is than larger (diffusion area is than the area ratio being the air-flow cross-section of diffuser 24 entrance and the air-flow cross-section of outlet), and required length is larger.Increasing the diameter of fan 6 and reduce fan hub support 33, diffusion area ratio can be reduced when not reducing screen area.This diffuser 24 for air-flow to be expanded to reposefully a larger cross section from a less cross section, to increase the total volume of air flow rate by air duct.Diffuser 24 one end in the present embodiment is the circular other end is Two Coaxial Square, and by conical tube transitional structure, the bore of arrival end circle is less than the square length of side of the port of export.Diffuser 24 is made of plastics, and the inner side of its port of export circumferentially can be provided with several radial rib plate and support, to gain in strength.In embodiment shown in Figure 11-Figure 14, the Advantageous materials of filter screen framework 3 and top cover 2 selects plastics, and top cover 2 can snap in and extract.
Described motor 13 is provided with motor cover 14, and described motor cover 14 is (approximately) half ellipsoid, and the opening of front end is used for being inserted in motor 13, and the oval top of rear end, towards the outlet air end of electric fan, this motor cover 14 is provided with air vent 141.Motor cover 14 has the continuous surface of a continuous slope, avoid air-flow by time produce eddy current, help air flow through smoothly around motor 13, reduce the resistance to air-flow.Air vent 141 in motor cover 14 allows a small amount of air to pass through, for motor 13 cools.This cooling-air flow rate is very little, significantly can not reduce the efficiency of whole system.Motor cover 14 can be made of plastic.
See Fig. 9 and Figure 10, the wheel hub of the impeller 6 of electric fan of the present utility model is the equalizing baffle 25 of a circle, the slide rail 27 of the multiple radial directions be uniformly distributed along the circumference is provided with in the inner side of this equalizing baffle 25, slide rail 27 is slidably installed balance weight 26, reached by the position of adjustment block 26 and regulate impeller 6 dynamically balanced object, after adjustment with binding agent by fixing for balance weight 26 (in advance between coated with adhesive); Installing hole on the output shaft that the center of this equalizing baffle 25 is provided with for being arranged on motor 13, the periphery of equalizing baffle 25 is connected with the wheel nave collar 33 of impeller 6.The fairing cap 34 of arc is housed at outside (side towards the air intake) center of this equalizing baffle 25, this fairing cap 34 is provided with air vent 341.
, Novel axial fan impeller 6 explanation
Blast fan 6 by incoming flow and impeller 6 leading edge almost tangent and do not produce the smooth and easy impeller 6 that flows through discretely and design.Impeller 6 is by raising the efficiency subsidiary details design to greatest extent.Air is risen by its static pressure during impeller 6, and the pressure differential of generation drives air through main filter screen 16.Due to the rotation of impeller 6, also introduce simultaneously one useless and waste the circumferential speed component of electric energy, these needs reduce by designing.See Fig. 5-Fig. 8, the utility model utilizes parabola to design leading edge 28 and the trailing edge 29 of the blade of described impeller 6, designs root 30 and the vane tip 31 of blade with circular arc line; Namely utilize parabola to carry out design plane aerofoil profile and project to cylindrical surface be created on circumferencial direction have constant thickness, radial direction have linear gradient thickness, there is the cylinder airfoil 32 of round and smooth aerofoil profile leading edge and trailing edge.Preferred impeller 6 comprises the buzzard-type wing blade that five have parabolic type blade inlet edge 28 and trailing edge 29.Fig. 8 shows the isometric view of an impeller 6 vane airfoil profile shape.X-axis represents roughly circumferencial direction, and Y-axis representative is roughly radial, and z-axis represents axis direction.What Fig. 7 showed is the plane projection of blade, and the vane airfoil profile being namely baseline parabola is projected on the face of cylinder and obtains.Blade root aerofoil profile 30 and blade tip aerofoil profile 31 are circular arc; The thickness of aerofoil profile linearly successively decreases from root of blade 30 to blade tip 31.The shape of blade inlet edge 28 and trailing edge 29 is parabola shaped.Blade inlet edge is:
.Trailing edge is:
.The blade shape of impeller 6 of the present utility model is different from conventional blade design, for the aerofoil fan of about 25 centimetres of diameter, its hub diameter about 10 centimetres, when its rotary speed is about 1200RPM, the blade root of conventional blade is about 15.1-38.7 degree to the blade pitch angle of blade tip, in other words, the total torsional angle from blade root to blade tip about 23.6 degree.And the blade root of blade of the present utility model is 69.3-74.7 degree to the blade pitch angle of blade tip, in other words, the total torsional angle from blade root to blade tip only has 5.4 degree.This design difference improves the fan performance (measurement parameter of a national standard, unit is cubic meters per minute every watt) of 28%.
The embodiment with longer diffuser can allow higher hub-tip ratio (ratio of impeller internal-and external diameter) and can not cause flow separation, thus produces higher static pressure and air-flow velocity.Such embodiment can utilize the more complicated airfoil with non-uniform thickness distribution, runs under the air-flow velocity of more wide region.Tube-axial fan impeller 6 for this embodiment becomes heavier, and its Mass Distribution is further from rotation.Consequently, such fan comparatively has much difficulty in healing weighing apparatus, so the new method of the utility model one is depicted in Fig. 9 and Figure 10: the wheel hub of impeller 6 is the equalizing baffle 25 of a circle, the slide rail 26 of the multiple radial directions be uniformly distributed along the circumference is provided with in the inner side of this equalizing baffle 25, slide rail 26 is slidably installed balance weight 27, is reached regulate the dynamically balanced object of impeller 6 by the position of adjustment block 27.Concrete grammar adhesive is applied to balance weight 27 and is buckled into the groove of slide rail 26 and slide along slide rail 26, until impeller 6 reaches balance, does for be bonded dose and namely fix.The air vent 341 that installing hole on the output shaft that the center of this equalizing baffle 25 is provided with for being arranged on motor and the permission cooling-air be uniformly distributed along the circumference pass through; The fairing cap 34 of arc is housed, to strengthen the aerodynamic efficiency of impeller 6 root in the upstream of this equalizing baffle 25.
, guide vane 5 explanation
The pole 5 of the support motor of heavy duty detergent embodiment has as shown in figure 11 been replaced by guide vane 5.Air is by after pre-filter screen 9, from by the guide vane 5 in columnar shell 15 after being driven by impeller 6, while the pressure differential driving air-flow that impeller 6 produces, also create a circumferential speed component, this component is a useless energy (kinetic energy), and the effect of guide vane 5 is exactly this useless circumferential speed component is converted into useful static pressure, namely the effect of guide vane 5 is exactly useless circumferential speed component be converted into useful to flow to component, passes through to promote more axial flow.Guide vane 5 utilizes NACA4 position series aerofoil sections, and maximum camber is positioned at apart from blade inlet edge 3/10ths chord length.Except at rounded leading edge and trailing edge, chord length is linearly tapered from blade tip to blade root, but vane thickness remains unchanged.Two unique equations are derived: first equation is m=0.105 δ, wherein in design guide vane 5
, and second equation
, be used for estimation by the air-flow peripheral speed after impeller.V is axial air flow velocity, and Vc is by the air-flow peripheral speed after impeller,
for the differential static pressure by rising after impeller,
for the density of air, and U is the circumferential speed of rotary blade, is the function of a radial position and wheel speed.Because guide vane 5 is static, lower by the relative velocity of the air-flow of guide vane 5, so the impact of its detailed shape on system effectiveness is less.Guide vane 5 quantity selects needs to guarantee: its geometry is successfully imposed on air-flow by (1); (2) weight of all installing components can suitably be supported; (3) material used can not be too much.
Have a blade to be the thick symmetrical airfoil of hollow in guide vane 5, and trailing edge is inc, extends safely for supply lines from electric appliance control box 12 to motor 13, and not rough air.
, experiment results
For the efficiency of a kind of air purifier of checking the utility model, have selected a simple type embodiment, a heavy duty detergent embodiment and an existing business desktop filter in an experiment and compared.Balancing method is the volume flow rate of a measurement industrial standard and the ratio of actual power.
Table 1 compares two kinds of air ventilation and purification systems and to be in operation average power consumption (W).Because in different time sections, the voltage of national grid can fluctuate at 220V.For eliminating the stability influence of voltage, the power consumption in experiment all adjusts to unified 220V.
Table 1: average power consumption (W) (level that can reach at present) in operation
Table 2 illustrates performance and the efficiency of the different filters under same motor, nominal power, driving voltage.Wherein NiuKee filter is a kind of typical desktop air cleaner on the market.
Table 2: the volume of air rate of discharge (m flowing through HEPA filter screen under identical nominal power
3/ min) comparison
See Figure 16, this is that power middle-grade (the 2nd grade) arranges the lower gas pressure distribution figure along wafter radial direction, x-axis is the distance of distance Fan axial center, and unit is a millimeter mm, and y-axis is the draught head by HEPA filter screen (unit is Pascal Pa) of the location point in corresponding x-axis direction.In figure, curve is: heavy line represents the gas pressure distribution figure of heavy duty detergent embodiment of the present utility model under power middle-grade (the 2nd grade) is arranged; Thick dashed line represents the gas pressure distribution figure of simple type type embodiment of the present utility model under power middle-grade (the 2nd grade) is arranged.Vertical fine dotted line is also had: r=48.5mm represents the external diameter of blast fan wheel hub, i.e. the blade root position of impeller blade in figure; R=127.5mm represents the blade tip position of impeller blade; R=130mm represents the internal diameter of shell 15; R=141mm represents the vertical range of limit to axle center of filter screen 16; R=199.4mm represents the distance of angle to axle center of filter screen 16.
Draught head shown in wind speed to y-axis is directly proportional, so the draught head shown in y-axis is higher in the integrated value of the whole area of HEPA filter screen, represent the volume of air rate of discharge flowing through HEPA filter screen of the present utility model higher, namely performance is better.Meanwhile, the draught head shown in y-axis is more even along x-axis distribution, more the uniform particle in air can be distributed in whole HEPA filtering net surface, prolongation filter screen service life.
In simple type embodiment Figure 16, thick dashed line is analyzed: between r=0 and r=48.5mm, have the straight line that a section smooth, represent the differential static pressure of this region constant, illustrate that air-flow is subject to unexpected cross sectional shape change in the downstream of impeller hub, be separated completely with hub surface, reduced system effectiveness.Differential static pressure from impeller blade root to blade tip region parabolically rises, and then suddenlys change by the cross sectional shape between shell 15 and screen frame 3, and differential static pressure is sharply declined, and represents sharply to be declined by the air velocity of filter screen 16, and namely system effectiveness sharply declines.R=141mm and r=199.4mm all within screen frame 3, differential static pressure without significant change, represent air velocity stablize.
Heavy duty detergent embodiment has higher pressure reduction and flow velocity at each point by filter.The heavy line representing heavy duty detergent embodiment of the present utility model in Figure 16 is one section of straight line linearly raised between r=0 and r=48.5mm, the stable differential static pressure increased of representative, or the stable air velocity increased, illustrate that air-flow is not separated with hub surface completely in the downstream of impeller hub.And compared with simple type embodiment of the present utility model, the differential static pressure sharply declined in region disappears between shell 15 and screen frame 3, be because the effect of diffuser 24, maintain stable and high differential static pressure, thus greatly increase the efficiency of system.
, statement
Above-described embodiment, just in order to technical conceive of the present utility model and feature are described, its objective is and is one of ordinary skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.The change of every equivalence done by the essence of the utility model content or modification, all should be encompassed in protection domain of the present utility model.
Claims (9)
1. an air purifier, comprise the axial-flow type electric fan be made up of shell (15), impeller (6) and motor (13), motor (13) is supported on the axle center of cylindrical housing (15) by radial guide vane or pole (5), impeller (6) is arranged on the output shaft of motor (13), bearing (23) is provided with below this shell (15), it is characterized in that, the filter screen room (3) of U-shaped is housed in one end of shell (15), main filter screen (16) is slidably mounted in this filter screen room (3), in one end of this filter screen room (3), top cover (2) is housed.
2. air purifier according to claim 1, it is characterized in that, between the outlet air end and main filter screen (16) of described shell (15), diffuser (24) is housed, diffuser (24) is conical, the outlet air end of its osculum end and shell (15) is connected, big opening end is circular or square, and is connected with described filter screen room (3).
3. air purifier according to claim 1, is characterized in that, in the upstream of main filter screen (16), pre-filter screen (9) is housed.
4. according to air purifier according to claim 1, it is characterized in that: below described bearing (23), be provided with height and levelness adjuster (11).
5. air purifier according to claim 1, is characterized in that, is provided with flaring air intake flow-guiding mouth (7) at the air intake of described shell (15), and the axial cross section of this air intake flow-guiding mouth (7) is streamlined.
6. air purifier according to claim 2, it is characterized in that: on described motor (13), be provided with motor cover (14), described motor cover (14) is the smooth-shaped of half ellipsoid or other continuous curvatures, on the inner ring (17) that the opening of front end is fixed on guide vane or pole (5) or strut support, the oval top of rear end, towards the outlet air end of electric fan, this motor cover (14) is provided with air vent (141).
7. air purifier according to claim 1, is characterized in that: be provided with handle (1) in the upper end of described shell (15).
8. air purifier according to claim 1, it is characterized in that: described guide vane or pole (5) are provided with more than two, and be uniformly distributed along the circumference, its root and top are connected on inner ring (17) and outer shroud (18), motor (13) described in loading in this inner ring (17), the expanding part of shell (15) inner side described in this outer shroud (18) embeds, and make the inner peripheral surface of this outer shroud (18) concordant with the inner peripheral surface of the non-expanding part of shell (15) inner side.
9. air purifier according to claim 1, is characterized in that: also comprise the safe grid (37) identical with described main filter screen (16) appearance and size, for being replaced main filter screen (16) in the electric fan use procedure of enjoying the cool merely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520707510.2U CN204952575U (en) | 2015-09-14 | 2015-09-14 | Air purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520707510.2U CN204952575U (en) | 2015-09-14 | 2015-09-14 | Air purifier |
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| CN204952575U true CN204952575U (en) | 2016-01-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337841A (en) * | 2016-11-18 | 2017-01-18 | 苏州康喜医疗净化设备有限公司 | The air purifier fan filtering wind wheel |
| CN108190984A (en) * | 2018-03-13 | 2018-06-22 | 晋燕 | A kind of effluent treatment plant of municipal drainage pipe end |
| CN110075635A (en) * | 2019-04-23 | 2019-08-02 | 胡海潮 | A kind of cleaner of the industrial production dedusting with automatic double protection door |
-
2015
- 2015-09-14 CN CN201520707510.2U patent/CN204952575U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337841A (en) * | 2016-11-18 | 2017-01-18 | 苏州康喜医疗净化设备有限公司 | The air purifier fan filtering wind wheel |
| CN106337841B (en) * | 2016-11-18 | 2019-01-25 | 苏州康喜医疗净化设备有限公司 | Air purifier blower fan filtering formula wind wheel |
| CN108190984A (en) * | 2018-03-13 | 2018-06-22 | 晋燕 | A kind of effluent treatment plant of municipal drainage pipe end |
| CN108190984B (en) * | 2018-03-13 | 2020-12-11 | 江苏源泉泵业股份有限公司 | Sewage purification device for urban drain pipe end |
| CN110075635A (en) * | 2019-04-23 | 2019-08-02 | 胡海潮 | A kind of cleaner of the industrial production dedusting with automatic double protection door |
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