CN113137400A - Bladeless air supply device - Google Patents
Bladeless air supply device Download PDFInfo
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- CN113137400A CN113137400A CN202010060639.4A CN202010060639A CN113137400A CN 113137400 A CN113137400 A CN 113137400A CN 202010060639 A CN202010060639 A CN 202010060639A CN 113137400 A CN113137400 A CN 113137400A
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- air
- air supply
- bladeless
- inlet
- wind wheel
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- 238000007664 blowing Methods 0.000 claims description 25
- 230000004323 axial length Effects 0.000 claims description 21
- 238000009434 installation Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 206010010904 Convulsion Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a bladeless air supply device, which comprises: the air channel part comprises an air channel body, an air channel is arranged in the air channel body, and the air channel is provided with an air channel air supply outlet and an air inlet interface; the fuselage, the fuselage includes the fuselage body and sets up the air supply spare in the fuselage body, and the air supply spare has air supply spare air-out interface, first air supply spare air intake and second air supply spare air intake, and air supply spare air-out interface and air inlet interface intercommunication, first air supply spare air intake and second air supply spare air intake are located the relative both sides of bladeless air supply arrangement's vertical central line. From this, through setting up first air supply part air intake and second air supply part air intake, can follow the relative both sides air inlet of bladeless air supply arrangement's vertical central line, can make the relative both sides air inlet of bladeless air supply arrangement's vertical central line more even to can make air supply part supply air to the air inlet interface uniformly, and then can reduce bladeless air supply arrangement's aerodynamic noise, promote bladeless air supply arrangement's use and experience.
Description
Technical Field
The invention relates to the field of domestic appliances, in particular to a bladeless air supply device.
Background
In the related art, a bladeless air supply device (i.e., a bladeless fan) is widely used by users due to its advantages of safety, easy cleaning, and good appearance. The main source of the noise of the bladeless air supply device is air duct pneumatic noise, particularly a bladeless fan with double air outlet air ducts, and the air quantity distributed by the two air ducts is uneven, so that the pneumatic noise of the bladeless air supply device is increased, and the use experience of the bladeless air supply device is influenced.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art. Therefore, an object of the present invention is to provide a bladeless air supply device, which can reduce the aerodynamic noise of the bladeless air supply device and improve the use experience of the bladeless air supply device.
The bladeless air supply device comprises: the air channel component comprises an air channel body, an air channel is arranged in the air channel body, and the air channel is provided with an air channel air supply outlet and an air inlet interface; and the air supply part is provided with an air supply part air outlet interface, a first air supply part air inlet and a second air supply part air inlet, the air supply part air outlet interface is communicated with the air inlet interface, and the first air supply part air inlet and the second air supply part air inlet are positioned on two opposite sides of the longitudinal central line of the bladeless air supply device.
According to the bladeless air supply device, the first air supply part air inlet and the second air supply part air inlet are arranged, air can be supplied from two opposite sides of a longitudinal center line of the bladeless air supply device, air can be supplied from two opposite sides of the longitudinal center line of the bladeless air supply device more uniformly, the air can be supplied to the air inlet interface uniformly by the air supply parts, further, the pneumatic noise of the bladeless air supply device can be reduced, and the use experience of the bladeless air supply device is improved.
In some examples of the present invention, the first air delivery member inlet and the second air delivery member inlet are symmetrically disposed about the longitudinal centerline.
In some examples of the present disclosure, the body has a first body air inlet and a second body air inlet, the first body air inlet corresponds to and is adjacent to the first air blowing member air inlet, and the second body air inlet corresponds to and is adjacent to the second air blowing member air inlet.
In some examples of the present disclosure, the first body air intake and the second body air intake are symmetrically disposed about the longitudinal centerline.
In some examples of the invention, the air duct includes a first air duct and a second air duct, the first air duct and the second air duct both communicating with the air intake interface, the first air duct and the second air duct being located on opposite sides of the longitudinal centerline.
In some examples of the present invention, the first air duct and the second air duct are symmetrically arranged about the longitudinal centerline, and the first air duct and the first air blowing member air inlet are located on the same side of the longitudinal centerline, and the second air duct and the second air blowing member air inlet are located on the other side of the longitudinal centerline.
In some examples of the present invention, the bladeless air-blowing device further includes: the shunting structure is arranged between the inlet end of the first air channel and the inlet end of the second air channel, and the shunting structure is used for guiding the air from the air inlet interface to the first air channel and the second air channel respectively after shunting action.
In some examples of the present invention, the air outlet of the air supply member is rectangular and faces the flow dividing structure.
In some examples of the invention, the blower comprises a centrifugal fan having an axis of rotation perpendicular to the longitudinal centerline.
In some examples of the invention, the centrifugal fan comprises: the volute comprises a volute body and a wind wheel, wherein an installation space is arranged in the volute body, the wind wheel is arranged in the installation space, and a first air supply part air inlet and a second air supply part air inlet are formed in two axial side faces of the volute body respectively.
In some examples of the present invention, the first air inlet and the second air inlet are both circular.
In some examples of the present invention, the diameters of the first air supply member air inlet and the second air supply member air inlet are both DW, and the wind wheel has a wind wheel outer diameter D, which satisfies the relation: 0.6D < DW＜D。
In some examples of the invention, the separation distance between two axial sides of the volute is HW, the axial length of the wind wheel is Hf, and the relation is satisfied: hw +0.02D < Hw < Hf+0.2D。
In some examples of the invention, the centrifugal fan further comprises: a drive motor, the wind wheel comprising: the wind wheel body is in with the setting wind wheel mounting panel in the wind wheel body, the wind wheel mounting panel will the wind wheel body is followed long wind wheel body and short wind wheel body are separated to the axial of wind wheel, the axial length of long wind wheel body is greater than the axial length of short wind wheel body, long wind wheel body corresponds and is close to the second air supply piece air intake, short wind wheel body corresponds and is close to first air supply piece air intake, wherein driving motor sets up this internal and with the wind wheel mounting panel links to each other of short wind wheel.
In some examples of the invention, the short rotor body has an axial length H1 and the long rotor body has an axial length H2, wherein H2 and H1 satisfy the relationship: H1/H2 is more than or equal to 0.5 and less than or equal to 1.
In some examples of the invention, the centrifugal fan further comprises: and the motor mounting plate is used for mounting the driving motor and surrounds the air inlet of the first air supply part.
In some examples of the invention, the wind wheel comprises a plurality of blades spaced apart along a circumferential direction of the wind wheel, the blades are arc-shaped, and a chord length of the blades is L, which satisfies a relation: l is more than or equal to 15mm and less than or equal to 25 mm; the spacing distance between two adjacent blades is a, and the relationship is satisfied: a is more than or equal to 0.3L and less than or equal to 0.7L.
In some examples of the invention, the blade has a thickness t that satisfies the relationship: t is more than or equal to 1mm and less than or equal to 3 mm; the inlet angle of the blade is alpha, and the relation is satisfied: alpha is more than or equal to 40 degrees and less than or equal to 90 degrees; the outlet angle of the blade is theta, and the relation is satisfied: theta is more than or equal to 120 degrees and less than or equal to 170 degrees.
In some examples of the invention, the volute has a volute tongue side diffuser and an opposite non-volute tongue side diffuser, the air duct supply opening is on the same side as the volute tongue side diffuser or the air duct supply opening is on the same side as the non-volute tongue side diffuser.
In some examples of the present invention, the bladeless air-blowing device further includes: the diversion structure is arranged on the air duct bottom wall of the air duct opposite to the air duct air supply outlet, and the diversion structure is used for guiding the air in the air duct to the air duct air supply outlet through diversion and blowing out from the air duct air supply outlet.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic view of a bladeless air delivery device according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a bladeless blower according to an embodiment of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is a cross-sectional view of a side view of a bladeless blower according to an embodiment of the present invention;
FIG. 5 is a sectional view of the air duct outlet and the volute tongue side diffuser on the same side of the bladeless air blower according to the embodiment of the present invention;
FIG. 6 is a sectional view of the bladeless fan according to the embodiment of the present invention, wherein the air duct outlet and the volute tongue side diffuser are located at different sides;
FIG. 7 is a cross-sectional view of a duct member of a bladeless blower according to an embodiment of the present invention;
FIG. 8 is an enlarged view at B in FIG. 7;
FIG. 9 is a schematic view of a part of the structure of a bladeless fan according to an embodiment of the present invention;
FIG. 10 is an exploded view of a centrifugal fan of a bladeless blower according to an embodiment of the present invention;
FIG. 11 is a schematic view of a rotor of a centrifugal fan of a bladeless blower according to an embodiment of the present invention;
fig. 12 is a side view of a rotor of a centrifugal fan of a bladeless air supply device according to an embodiment of the present invention.
Reference numerals:
a bladeless fan 300;
an air duct member 200; an air duct body 201;
a first air duct 2011; a second duct 2012; an air duct air supply outlet 2019; an air inlet interface 2015;
a body 400;
a body 401; a first body air inlet 4011; a second body air inlet 4012;
a blower 402; an air outlet port 4021 of the air supply part; a first air inlet 1015; a second blower inlet 1016;
a shunting structure 202;
a centrifugal fan 100; a volute 101; an installation space 1011; a volute tongue side diffuser section 1017; a non-volute tongue side diffuser section 1018;
a wind wheel 102; a wind wheel body 1021; a wind wheel mounting plate 1022; long wind wheel body 1023; a short wind wheel body 1024; a vane 1025;
a drive motor 105; a motor mounting plate 106;
a longitudinal centerline 203;
a flow directing structure 204; a windward side 2041; leeward side 2042;
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
A bladeless air blowing device 300 according to an embodiment of the present invention is described below with reference to fig. 1 to 12.
As shown in fig. 1 to 12, a bladeless air blowing device 300 according to an embodiment of the present invention includes: air duct member 200 and body 400. Air duct component 200 includes air duct body 201, has the wind channel in the air duct body 201, and the wind channel has wind channel supply-air outlet 2019 and air inlet interface 2015, and wind blows out from wind channel supply-air outlet 2019 after flowing into the wind channel from air inlet interface 2015. Fuselage 400 links to each other with air duct component 200, and fuselage 400 includes fuselage body 401 and sets up air supply part 402 in fuselage body 401, and air supply part 402 has air supply part air-out interface 4021, first air supply part air intake 1015 and second air supply part air intake 1016, and air supply part air-out interface 4021 communicates with air inlet interface 2015 in wind channel, and first air supply part air intake 1015 and second air supply part air intake 1016 are located the relative both sides of bladeless air supply unit 300's longitudinal midline 203.
Specifically, when the air blowing element 402 of the bladeless air blowing device 300 works, the air in the environment flows into the air blowing element 402 from the first air blowing element air inlet 1015 and the second air blowing element air inlet 1016 at the same time, and under the action of the air blowing element 402, the air flow flows to the air blowing element air outlet interface 4021, then the air flow flows to the air inlet interface 2015 from the air blowing element air outlet interface 4021, then the air flow flows into the air duct from the air inlet interface 2015, and finally the air is blown out from the air duct air outlet 2019. Wherein, bladeless air supply arrangement 300 during operation, through the relative both sides air inlet of following bladeless air supply arrangement 300's vertical central line 203 simultaneously, can make bladeless air supply arrangement 300's vertical central line 203's relative both sides air inlet more even to can make air supply piece 402 supply air to air inlet interface 2015 uniformly, and then can reduce bladeless air supply arrangement 300's aerodynamic noise, promote bladeless air supply arrangement 300's use and experience.
From this, through setting up first air supply member air intake 1015 and second air supply member air intake 1016, can follow the relative both sides air inlet of vertical central line 203 of bladeless air supply arrangement 300, can make the relative both sides air inlet of vertical central line 203 of bladeless air supply arrangement 300 more even to can make air supply member 402 supply air to air inlet interface 2015 uniformly, and then can reduce bladeless air supply arrangement 300's aerodynamic noise, promote bladeless air supply arrangement 300's use experience.
The first air supply member inlet 1015 and the second air supply member inlet 1016 are symmetrically arranged about the longitudinal center line 203, so that air can be symmetrically supplied from two sides of the air supply member 402, and turbulence of the air flow in the air supply member 402 can be avoided, thereby further reducing aerodynamic noise of the air bladeless air supply device 300.
As shown in fig. 2 and 3, the main body 401 may be provided with a first main body air inlet 4011 and a second main body air inlet 4012, the first main body air inlet 4011 is disposed corresponding to the first air supply member air inlet 1015, the first main body air inlet 4011 is disposed adjacent to the first air supply member air inlet 1015, the second main body air inlet 4012 is disposed corresponding to the second air supply member air inlet 1016, and the second main body air inlet 4012 is disposed adjacent to the second air supply member air inlet 1016. Wherein, a gap may be provided between the first body air inlet 4011 and the first air supply member air inlet 1015, a gap may be provided between the second body air inlet 4012 and the second air supply member air inlet 1016, when the air supply member 402 of the bladeless air supply device 300 is working, wind in the external environment can flow from the first body air inlet 4011 to the first air supply member air inlet 1015, and also can flow from the second body inlet 4012 to the second blower inlet 1016, this arrangement facilitates airflow to first blower inlet 1015 and second blower inlet 1016, the flow path of the air flow from the first body inlet 4011 to the first air supply member inlet 1015 can be reduced, and the flow path of the air flow from the second body inlet 4012 to the second air supply member inlet 1016 can be reduced, so that the aerodynamic noise of the bladeless air supply device 300 can be reduced better.
As shown in fig. 3, the first body air inlet 4011 and the second body air inlet 4012 are symmetrically arranged with respect to the longitudinal center line 203, as shown in fig. 3, the first body air inlet 4011 may be disposed on the left side of the longitudinal center line 203, and the second body air inlet 4012 may be disposed on the right side of the longitudinal center line 203, so that the arrangement can ensure that the first body air inlet 4011 corresponds to the first air supply member air inlet 1015, and also ensure that the second body air inlet 4012 corresponds to the second air supply member air inlet 1016, so that the arrangement form of the first body air inlet 4011 and the second body air inlet 4012 is more reasonable.
As shown in fig. 2 and 9, the air duct may include a first air duct 2011 and a second air duct 2012, the first air duct 2011 and the second air duct 2012 are both communicated with the air inlet interface 2015, and the first air duct 2011 and the second air duct 2012 are located at opposite sides of the longitudinal centerline 203, where as shown in fig. 2, the first air duct 2011 may be disposed at the left side of the longitudinal centerline 203, and the second air duct 2012 may be disposed at the right side of the longitudinal centerline 203, and after the air flow flows from the air outlet interface 4021 to the air inlet interface 2015, the air flow can more uniformly flow to the first air duct 2011 and the second air duct 2012 due to such an arrangement, so that the difference between the air flow rates of the first air duct 2011 and the second air duct 2012 becomes small, so that the air flow rates distributed by the first air duct 2011 and the second air duct 2012 are more uniform, and further, the aerodynamic noise of the bladeless air supply device 300 can be further reduced.
As shown in fig. 2, the first air duct 2011 and the second air duct 2012 are symmetrically arranged about the longitudinal central line 203, the first air duct 2011 and the first air inlet 1015 are located on the same side of the longitudinal central line 203, and the second air duct 2012 and the second air inlet 1016 are located on the other side of the longitudinal central line 203, so that the difference between the airflow rates of the first air duct 2011 and the second air duct 2012 can be further reduced, the air volumes distributed by the first air duct 2011 and the second air duct 2012 can be more uniform, and the pneumatic noise of the bladeless air blower 300 can be further reduced.
As shown in fig. 2, the bladeless air-blowing device 300 may further include: the diversion structure 202, the diversion structure 202 may be disposed between the inlet end of the first air duct 2011 and the inlet end of the second air duct 2012, and the diversion structure 202 is configured to guide the wind from the wind inlet 2015 to the first air duct 2011 and the second air duct 2012 respectively through a diversion function. When the bladeless air supply device 300 works, air flows from the air inlet interface 2015 of the air duct body 201 to the inlet end of the first air duct 2011 and the inlet end of the second air duct 2012, before the air flows into the inlet end of the first air duct 2011 and the inlet end of the second air duct 2012, the air flows through the shunting structure 202 firstly, after the air is shunted by the shunting structure 202, the air flowing out from the air inlet interface 2015 can be more smoothly and uniformly shunted into the first air duct 2011 and the second air duct 2012, the air outlet of the first air duct 2011 and the air outlet of the second air duct 2012 can be more uniform, the consistency of the air outlet effects of the first air duct 2011 and the second air duct 2012 can be improved, after the air is blown onto a user body, the user can feel more comfortable, so that the user experience can be improved, and after the air is shunted by the shunting structure 202, the noise generated by the air in the air duct component 200 can be reduced, and the working noise of the bladeless air supply device 300 can be reduced, therefore, the noise pollution to the indoor environment can be reduced, and the working performance of the bladeless air supply device 300 can be improved.
Air supply member air outlet 4021 can set up to the rectangle, and air supply member air outlet 4021 can just set up to reposition of redundant personnel structure 202, and wind flows out the back from air supply member air outlet 4021, can flow to reposition of redundant personnel structure 202, is favorable to reposition of redundant personnel structure 202 to the air current reposition of redundant personnel, can shunt wind evenly to first wind channel 2011 and second wind channel 2012 in.
As shown in fig. 2, the air supply part 402 may include a centrifugal fan 100, a rotation axis of the centrifugal fan 100 is perpendicular to the longitudinal centerline 203, and after the air flows into the centrifugal fan 100, the air can flow upwards, which may facilitate blowing the air to an air supply part outlet port 4021, so as to make the arrangement of the centrifugal fan 100 more reasonable.
As shown in fig. 10, the centrifugal fan 100 may include: volute 101 and wind wheel 102, have installation space 1011 in the volute 101, wind wheel 102 sets up in installation space 1011, and first air supply part intake 1015 and second air supply part intake 1016 form respectively on two axial sides of volute 101, and wherein, first air supply part intake 1015 forms on the left surface of volute 101, and second air supply part intake 1016 forms on the right side of volute 101.
First air supply part air intake 1015 and second air supply part air intake 1016 all can set up to circular, sets up like this and can be convenient for first air supply part air intake 1015 and second air supply part air intake 1016's setting, can reduce first air supply part air intake 1015 and second air supply part air intake 1016 and set up the degree of difficulty to can reduce the settling time of first air supply part air intake 1015 and second air supply part air intake 1016.
The diameters of the first air supply part air inlet 1015 and the second air supply part air inlet 1016 are set to be DWThe wind wheel 102 has a wind wheel 102 outer diameter D, satisfying the relationship: 0.6D < DWD, so set up the intake and the air output that can balance air supply piece 402, can guarantee to produce the condition of convulsions and stifled wind in the air supply piece 402 to can further reduce bladeless air supply arrangement 300's pneumatic noise, and then can promote bladeless air supply arrangement 300's use and experience.
The distance between two axial sides of volute 101 is HW, and the axial length of wind wheel 102 is HfAnd satisfies the relation: hw +0.02D < Hw < Hf+ 0.2D. Wherein, the spacing distance between two side surfaces of the volute 101 is HWThe axial length of the wind wheel 102 is H in the left-right directionfAfter the wind wheel 102 is installed in the installation space 1011, a gap can be ensured between the left side surface and the right side surface of the wind wheel 102 and the volute 101, and the wind wheel 102 and the volute 101 can be prevented from interfering with each other, so that the working reliability of the wind wheel 102 can be ensured, wind can rapidly flow into the wind wheel 102, and the working efficiency of the centrifugal fan 100 can be improved.
As shown in fig. 3 and 10, the centrifugal fan 100 may further include: the drive motor 105, the wind wheel 102 may include: wind wheel body 1021 and the wind wheel mounting panel 1022 of setting in wind wheel body 1021, wind wheel mounting panel 1022 separates wind wheel body 1021 along the axial of wind wheel 102 long wind wheel body 1023 and short wind wheel body 1024, the axial direction of wind wheel 102 indicates left right direction in fig. 2, the axial length of long wind wheel body 1023 is greater than the axial length of short wind wheel body 1024, long wind wheel body 1023 corresponds and is close to second air supply piece air intake 1016 setting, short wind wheel body 1024 corresponds and is close to first air supply piece air intake 1015 setting, wherein drive motor 105 sets up in short wind wheel body 1024, and drive motor 105 links to each other with wind wheel mounting panel 1022, when drive motor 105 during operation, drive motor 105 can drive wind wheel mounting panel 1022 and rotate, thereby make wind wheel 102 rotate.
Moreover, since the driving motor 105 is disposed in the volute 101, the driving motor 105 occupies a space in the volute 101, and when the driving motor 105 is disposed corresponding to the air inlet of the air supply member 402, the air inlet effect of the air inlet of the air supply member 402 is affected. Consequently this application is through setting up driving motor 105 in short wind wheel body 1024, can avoid driving motor 105 to influence the intake of second air supply piece air intake 1016, can guarantee centrifugal fan 100's intake, thereby can guarantee centrifugal fan 100's working property, and simultaneously, separate long wind wheel body 1023 and short wind wheel body 1024 through wind wheel mounting panel 1022, can avoid the air current in long wind wheel body 1023 and the air current in the short wind wheel body 1024 to influence each other, can reduce the noise in centrifugal fan 100, also can promote centrifugal fan 100's work efficiency, can reduce driving motor 105 axial length, be favorable to centrifugal fan 100's dynamic balance.
As shown in fig. 11, short rotor body 1024 has an axial length H1, and long rotor body 1023 has an axial length H2, where H2 and H1 satisfy the relation: H1/H2 is more than or equal to 0.5 and less than 1, wherein H1 can be set to 42mm, H2 can be set to 75mm, the axial length of long wind wheel body 1023 can be guaranteed to be larger than the axial length of short wind wheel body 1024 by the arrangement, the axial length of long wind wheel body 1023 and the axial length of short wind wheel body 1024 can be more suitable, the air intake can be better guaranteed, and the working efficiency of centrifugal fan 100 can be guaranteed.
As shown in fig. 10, the centrifugal fan 100 may further include: a motor mounting plate 106 for mounting the driving motor 105, the motor mounting plate 106 being disposed around the first blowing member inlet 1015, wherein the motor mounting plate 106 may be disposed on an inner surface of the scroll casing 101. After the centrifugal fan 100 is assembled, the driving motor 105 is mounted on the motor mounting plate 106, so that the driving motor 105 can be reliably fixed on the motor mounting plate 106, and when the driving motor 105 works, the vibration of the driving motor 105 can be reduced, thereby further reducing the working noise of the centrifugal fan 100.
As shown in fig. 11 and 12, the wind rotor 102 may include a plurality of blades 1025, such as: the blades 1025 can be provided in a plurality, the blades 1025 are arranged along the circumferential direction of the wind wheel 102 at intervals, the blades 1025 can be provided in an arc shape, the chord length of the blades 1025 is L, and the relation is satisfied: l is more than or equal to 15mm and less than or equal to 25mm, wherein the chord length of each blade 1025 can be set to be 18mm, the spacing distance between every two adjacent blades 1025 is a, and the relation is satisfied: a is more than or equal to 0.3L and less than or equal to 0.7L. Also, the thickness of the leaves 1025 is set to t, satisfying the relationship: t is 1mm < 3mm, and preferably, the thickness of the blade 1025 is set to 1.5 mm.
Meanwhile, the inlet angle of the blade 1025 is α, satisfying the relationship: α ≦ 40 ≦ α ≦ 90 °, preferably, the inlet angle of blade 1025 is 70 ° and the outlet angle of blade 1025 is θ, satisfying the relationship: theta is more than or equal to 120 degrees and less than or equal to 170 degrees, the outlet angle of the blade 1025 is 165 degrees, the inlet angle of the blade 1025 refers to the included angle between the tangent line at the intersection point of the inner end of the blade 1025 and the inner diameter of the wind wheel 102 and the tangent line at the intersection point of the inner diameter of the wind wheel 102 and the inner end of the blade 1025, and the outlet angle of the blade 1025 refers to the included angle between the tangent line at the intersection point of the outer end of the blade 1025 and the outer diameter of the wind wheel 102 and the tangent line at the intersection point of the outer diameter of the wind wheel 102 and the outer end of the blade 1025. Additionally, the setting angle of the blades 1025 may be set to 25 ° -40 °, and preferably, the setting angle of the blades 1025 is 32 °. Through the plurality of blades 1025 arranged in the above way, the flow channel between the adjacent blades 1025 can be an accelerating flow channel, the width of the flow channel is reduced from the inner end of the blade 1025 to the outer end, and after the air flow flows through the wind wheel 102, enough high-speed and high-pressure air flow can be formed to enter the air channel, so that the air channel resistance can be better overcome.
The volute 101 has a volute tongue side diffuser section 1017 and an opposite non-volute tongue side diffuser section 1018, and it should be noted that the volute tongue side diffuser section 1017 and the non-volute tongue side diffuser section 1018 are oppositely arranged, and the air duct air supply opening 2019 and the volute tongue side diffuser section 1017 are located on the same side or the air duct air supply opening 2019 and the non-volute tongue side diffuser section 1018 are located on the same side. It should be noted that, as shown in fig. 5, the duct air outlet 2019 and the volute tongue-side diffuser section 1017 are located on the same side, at this time, the duct air outlet 2019 is located on the front side of the duct, and the volute tongue-side diffuser section 1017 is located on the front side of the volute 101, as shown in fig. 6, the duct air outlet 2019 and the non-volute tongue-side diffuser section 1018 are located on the same side, at this time, the duct air outlet 2019 is located on the rear side of the duct, and the non-volute tongue-side diffuser section 1018 is located on the rear side of the volute 101, which enables the bladeless air supply device 300 to blow air on different sides.
As shown in fig. 7, the bladeless air-blowing device 300 may further include: the diversion structure 204 is arranged on the air duct bottom wall 20191 of the air duct opposite to the air duct air supply outlet 2019, and the diversion structure 204 is used for guiding the air in the air duct to the air duct air supply outlet 2019 through diversion and blowing out the air from the air duct air supply outlet 2019. The flow guide structure 204 has a windward side 2041 and a leeward side 2042, and an included angle between the windward side 2041 and the air duct bottom wall 20191 is smaller than an included angle between the leeward side 2042 and the air duct bottom wall 20191.
Wherein, the wind channel is arranged along upper and lower direction extension, wind flow in the wind channel in-process, by lower supreme direction in the wind channel, the amount of wind in the wind channel can reduce gradually, then can make the wind speed in the wind channel littleer and littleer, can lead to wind speed inhomogeneous in the wind channel, wind can increase the gas flow noise when flowing in the wind channel, concretely, by lower supreme direction in the wind channel, because the wind speed diminishes, then the dynamic pressure of air current diminishes, the static pressure grow, can be inhomogeneous after wind blows off from wind channel supply-air outlet 2019, lead to wind channel supply-air outlet 2019 noise grow, and the air-out contained angle grow of the direction that blows off of wind and horizontal plane, wind blows the head easily, wind blows after on one's body, the sense of wind is relatively poor.
In this application, through set up water conservancy diversion structure 204 on wind channel diapire 20191, wind flows to behind the windward side 2041 of water conservancy diversion structure 204 along upper and lower direction, can change the wind speed and the flow direction of air current, guide wind to wind channel supply-air outlet 2019, can reduce the difference of the dynamic pressure and the static pressure of air current, wind can be more even after blowing out from wind channel supply-air outlet 2019, can reduce wind channel supply-air outlet 2019 noise, also can increase the air supply distance of wind channel supply-air outlet 2019, and, under the guide effect of water conservancy diversion structure 204, can make the air-out contained angle of the direction of blowing out of wind and horizontal plane diminish, wind is difficult to blow the head, wind blows to the user on one's body after, can make the user feel more comfortable, can promote user experience.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (20)
1. A bladeless air supply device is characterized by comprising:
the air channel component comprises an air channel body, an air channel is arranged in the air channel body, and the air channel is provided with an air channel air supply outlet and an air inlet interface; and
the fuselage, the fuselage with the wind channel part links to each other, the fuselage includes the fuselage body and sets up air supply spare in the fuselage body, air supply spare has air supply spare air-out interface, first air supply spare air intake and second air supply spare air intake, air supply spare air-out interface with air inlet interface intercommunication, first air supply spare air intake with second air supply spare air intake is located the relative both sides of no leaf air supply arrangement's vertical central line.
2. The bladeless air delivery device of claim 1, wherein the first air delivery member inlet and the second air delivery member inlet are symmetrically disposed about the longitudinal centerline.
3. The bladeless air delivery device of claim 1, wherein the body includes a first body air inlet and a second body air inlet, the first body air inlet corresponding to and adjacent to the first air delivery member air inlet, and the second body air inlet corresponding to and adjacent to the second air delivery member air inlet.
4. The bladeless air delivery device of claim 3, wherein the first body air inlet and the second body air inlet are symmetrically disposed about the longitudinal centerline.
5. The bladeless air supply device of claim 1, wherein the air duct comprises a first air duct and a second air duct, the first air duct and the second air duct are both communicated with the air inlet interface, and the first air duct and the second air duct are located on opposite sides of the longitudinal centerline.
6. The bladeless air supply arrangement of claim 5, wherein the first air duct and the second air duct are symmetrically arranged about the longitudinal centerline, and wherein the first air duct and the first air supply member inlet are located on a same side of the longitudinal centerline, and wherein the second air duct and the second air supply member inlet are located on an opposite side of the longitudinal centerline.
7. The bladeless air supply device according to claim 5, further comprising: the shunting structure is arranged between the inlet end of the first air channel and the inlet end of the second air channel, and the shunting structure is used for guiding the air from the air inlet interface to the first air channel and the second air channel respectively after shunting action.
8. The bladeless air supply device of claim 7, wherein the air supply member air outlet port is rectangular and is arranged opposite to the flow dividing structure.
9. The bladeless air delivery device of claim 1, wherein the air delivery member comprises a centrifugal fan having an axis of rotation perpendicular to the longitudinal centerline.
10. The bladeless air supply arrangement of claim 9, wherein the centrifugal fan comprises: the volute comprises a volute body and a wind wheel, wherein an installation space is arranged in the volute body, the wind wheel is arranged in the installation space, and a first air supply part air inlet and a second air supply part air inlet are formed in two axial side faces of the volute body respectively.
11. The bladeless air delivery device of claim 1, wherein the first air delivery member inlet and the second air delivery member inlet are both circular.
12. The bladeless fan of claim 10 wherein the first fan inlet and the second fan inlet each have a diameter DWThe wind wheel has a wind wheel outer diameter D and satisfies the relation: 0.6D < DW＜D。
13. The bladeless air supply arrangement of claim 10, wherein the volute is spaced apart by a distance H between two axial sidesWThe axial length of the wind wheel is HfAnd satisfies the relation: hw +0.02D < Hw < Hf+0.2D。
14. The bladeless air supply arrangement of claim 10, wherein the centrifugal fan further comprises: a drive motor, the wind wheel comprising: the wind wheel body is in with the setting wind wheel mounting panel in the wind wheel body, the wind wheel mounting panel will the wind wheel body is followed long wind wheel body and short wind wheel body are separated to the axial of wind wheel, the axial length of long wind wheel body is greater than the axial length of short wind wheel body, long wind wheel body corresponds and is close to the second air supply piece air intake, short wind wheel body corresponds and is close to first air supply piece air intake, wherein driving motor sets up this internal and with the wind wheel mounting panel links to each other of short wind wheel.
15. The bladeless fan according to claim 14, wherein the short rotor body has an axial length H1, and the long rotor body has an axial length H2, wherein H2 and H1 satisfy the relation: H1/H2 is more than or equal to 0.5 and less than or equal to 1.
16. The bladeless air supply arrangement of claim 14, wherein the centrifugal fan further comprises: and the motor mounting plate is used for mounting the driving motor and surrounds the air inlet of the first air supply part.
17. The bladeless air supply arrangement of claim 10, wherein the wind wheel comprises a plurality of blades spaced apart along a circumferential direction of the wind wheel,
the blade is arc-shaped, the chord length of the blade is L, and the relation is satisfied: l is more than or equal to 15mm and less than or equal to 25 mm;
the spacing distance between two adjacent blades is a, and the relationship is satisfied: a is more than or equal to 0.3L and less than or equal to 0.7L.
18. The bladeless air supply device according to claim 17, wherein the thickness of the blade is t, and the relationship: t is more than or equal to 1mm and less than or equal to 3 mm;
the inlet angle of the blade is alpha, and the relation is satisfied: alpha is more than or equal to 40 degrees and less than or equal to 90 degrees;
the outlet angle of the blade is theta, and the relation is satisfied: theta is more than or equal to 120 degrees and less than or equal to 170 degrees.
19. The bladeless air supply arrangement of claim 17, wherein the volute has a volute tongue side diffuser and an opposite non-volute tongue side diffuser, and wherein the air duct outlet is on the same side as the volute tongue side diffuser or the air duct outlet is on the same side as the non-volute tongue side diffuser.
20. The bladeless air supply device according to claim 1, further comprising: the diversion structure is arranged on the air duct bottom wall of the air duct opposite to the air duct air supply outlet, and the diversion structure is used for guiding the air in the air duct to the air duct air supply outlet through diversion and blowing out from the air duct air supply outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010060639.4A CN113137400A (en) | 2020-01-19 | 2020-01-19 | Bladeless air supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010060639.4A CN113137400A (en) | 2020-01-19 | 2020-01-19 | Bladeless air supply device |
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| Publication Number | Publication Date |
|---|---|
| CN113137400A true CN113137400A (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010060639.4A Pending CN113137400A (en) | 2020-01-19 | 2020-01-19 | Bladeless air supply device |
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| CN (1) | CN113137400A (en) |
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Application publication date: 20210720 |