CN207471891U - Blower device and the refrigerator for having the blower device - Google Patents
Blower device and the refrigerator for having the blower device Download PDFInfo
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- CN207471891U CN207471891U CN201721364458.0U CN201721364458U CN207471891U CN 207471891 U CN207471891 U CN 207471891U CN 201721364458 U CN201721364458 U CN 201721364458U CN 207471891 U CN207471891 U CN 207471891U
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Abstract
The utility model provides blower device and has the refrigerator of the blower device, which has around the impeller and the above-mentioned impeller of storage of the center axis rotation extended up and down and the housing for forming air duct.Above-mentioned impeller has the circumferential multiple blades for being configured at above-mentioned central shaft.The radial inner end of above-mentioned blade be configured at than above-mentioned blade radial outer end lean on above-mentioned impeller direction of rotation front side.The upper surface of above-mentioned housing covers the top of above-mentioned impeller, and with the suction unit penetrated through in an axial direction.The side of above-mentioned housing covers the radial outside of above-mentioned impeller, and with the multiple exhaust portions penetrated through along direction orthogonal to the axial direction.Above-mentioned housing is respectively provided with tongue between above-mentioned impeller and multiple above-mentioned exhaust portions.Centered on above-mentioned central shaft, central angle formed by the radial outer end of the above-mentioned blade of any two is being set as φ, when central angle formed by the point closest to above-mentioned blade of the above-mentioned tongue of any two is set as θ, above-mentioned central angle φ and above-mentioned central angle θ is different.
Description
Technical field
The utility model is related to blower device and has the refrigerator of the blower device.
Background technology
Existing blower device is disclosed Japan's Publication special open 2010-133623 bulletins.The blower device
The main body shell of blast fan and storage blast fan with the center axis rotation around front and rear extension.Before main body shell
The central portion of surface side air-breathing/air blowing panel is equipped with a left side for air suction inlet, the in front air suction inlet of side air-breathing/air blowing panel
Right both sides are equipped with a pair of of air blow-off outlet.Blast fan is configured to, and has between the peripheral part and cricoid protecting cover of mainboard more
The central portion of mainboard is connected to the rotary shaft of fan motor by a blade.
Air suction passage and air blowout passage are equipped in main body shell.Air suction passage is from air suction inlet to master
The back panel direction of body shell body.Air blowout passage swims over to the air blow-off outlet side of the left and right sides under air suction passage
To.Tongue there are two being set in the position for clipping blast fan of air blowout passage.
In the blower device of above structure, when blast fan rotates, air flows into body shell via air suction inlet
The inside of body.The air for being flowed into the inside of main body shell is flowed between adjacent blade, is accelerated along blade to radial outside.Xiang Jing
The air accelerated outward is blown out outward to the diameter of blast fan, and outside is expelled to from air blow-off outlet.
But the blower device according to disclosed in Japan's Publication special open 2010-133623 bulletins, in a leaf
While near the radially inner side that piece passes through a tongue, near radially inner side of other blades by other tongues.Therefore, exist
Two tongues generate noise simultaneously, and the noise that there are problems that blower device becomes larger.
Utility model content
The purpose of this utility model is to provide can reduce the blower device of noise and have the refrigerator of the blower device.
The blower device of the illustrative embodiment of the utility model has：Around the leaf of the center axis rotation extended up and down
Wheel；And store above-mentioned impeller and form the housing in air duct, above-mentioned impeller is multiple with the circumferential direction for being configured at above-mentioned central shaft
Blade, the radial outer end that the radial inner end of above-mentioned blade is configured at than above-mentioned blade lean on the direction of rotation front side of above-mentioned impeller,
The upper surface of above-mentioned housing covers the top of above-mentioned impeller, and with the suction unit penetrated through in an axial direction, the side of above-mentioned housing
The radial outside of above-mentioned impeller is covered, and there are the multiple exhaust portions penetrated through along direction orthogonal to the axial direction, above-mentioned housing exists
Tongue is respectively provided between above-mentioned impeller and multiple above-mentioned exhaust portions, centered on above-mentioned central shaft, any two is above-mentioned
Central angle formed by the radial outer end of blade is set as φ, will be formed by the point closest to above-mentioned blade of the above-mentioned tongue of any two
When central angle is set as θ, above-mentioned central angle φ and above-mentioned central angle θ is different.
In the blower device of the illustrative embodiment of the utility model, the radial outer end of multiple above-mentioned blades is equally spaced
It is configured at circumferential direction.
In the blower device of the illustrative embodiment of the utility model, the number of the number of above-mentioned blade and above-mentioned tongue
It is prime number mutually.
In above-mentioned blower device, above-mentioned central angle θ is 180 °.
In above-mentioned blower device, the number of above-mentioned tongue is even number, and the number of above-mentioned blade is odd number.
It is 2 in the number of above-mentioned tongue, and above-mentioned blade in the blower device of the illustrative embodiment of the utility model
Number n when being even number, above-mentioned central angle θ meets 180 ° of 180 ° -360 °/n ＜ θ ＜.
It is 3 in the number of above-mentioned tongue, and above-mentioned blade in the blower device of the illustrative embodiment of the utility model
Number n when being even number, above-mentioned central angle θ meets 120 ° of 120 ° -360 °/n ＜ θ ＜.
In the blower device of the illustrative embodiment of the utility model, intersect with an above-mentioned tongue and with above-mentioned air duct
The sectional area of the orthogonal flow path of interior air-flow and with intersect different from other above-mentioned tongues of the above-mentioned tongue of said one and with it is upper
The sectional area for stating the orthogonal flow path of air-flow in air duct is identical.
In the blower device of the illustrative embodiment of the utility model, the radial inner end of an above-mentioned blade is configured at ratio
The radial outer end of other above-mentioned blades leans on the direction of rotation front side of above-mentioned impeller, and other above-mentioned blade compares said one
Above-mentioned blade is more adjacent to the direction of rotation front side of above-mentioned impeller.
In the blower device of the illustrative embodiment of the utility model, on the radius ratio of the internal diameter of above-mentioned suction unit is multiple
Radial inner end and the distance of above-mentioned central shaft for stating blade are big.
In the blower device of the illustrative embodiment of the utility model, the top of multiple above-mentioned blades passes through in above-mentioned
Cricoid circle portion connection centered on mandrel.
In the blower device of the illustrative embodiment of the utility model, the internal diameter of above-mentioned suction unit is with from axial upside
It is smoothly reduced towards axial downside.
In the blower device of the illustrative embodiment of the utility model, above-mentioned suction unit has the upper table from above-mentioned housing
The canister portion extended towards axial top, the upper axial end of multiple above-mentioned blades are accommodated in the radially inner side of above-mentioned canister portion, and be configured
In the upper surface than above-mentioned housing by axial top.
In the blower device of the illustrative embodiment of the utility model, above-mentioned housing has to be configured to be leaned on than above-mentioned blade
Axially below and to the mounting portion of Directional Extension orthogonal to the axial direction, the lower surface of above-mentioned housing has to being recessed axially below
Lower surface recess portion, above-mentioned mounting portion are configured at above-mentioned lower surface recess portion.
The refrigerator of the illustrative embodiment of the utility model has above-mentioned blower device.
Above-mentioned refrigerator has the storeroom of cooling preservation reserve, generates the cooler of cold air and make above-mentioned storage
The cold air access that room is connected with above-mentioned cooler, above-mentioned blower device are configured in above-mentioned cold air access.
According to illustrative the utility model, it is capable of providing the blower device that can reduce noise and has the blower device
Refrigerator.
With reference to attached drawing and by the following detailed description to preferred embodiment, the utility model above-mentioned and other
Element, feature, step, features and advantages will become apparent.
Description of the drawings
Fig. 1 is the side view cutaway drawing of the refrigerator of the blower device for the embodiment for having the utility model.
Fig. 2 is the stereogram of the blower device of the embodiment of the utility model.
Fig. 3 is the vertical view of the blower device of the embodiment of the utility model.
Fig. 4 is the side view of the blower device of the embodiment of the utility model.
Fig. 5 is the side view cutaway drawing of the blower device of the embodiment of the utility model.
Fig. 6 is the bottom view of the blower device of the embodiment of the utility model.
Fig. 7 is the figure inside the slave exhaust portion observation of the blower device of the embodiment of the utility model.
Fig. 8 is the vertical view of the inside of the blower device of the embodiment of the utility model.
Fig. 9 is that the amplification for being exaggerated internal major part of the blower device of the embodiment of the utility model is overlooked
Figure.
Figure 10 is the main portion for being exaggerated inside of the blower device of the first variation of the embodiment of the utility model
The enlarged plan view divided.
Figure 11 is the main portion for being exaggerated inside of the blower device of the second variation of the embodiment of the utility model
The enlarged plan view divided.
Specific embodiment
Hereinafter, with reference to attached drawing, the illustrative embodiment of the utility model is described in detail.In addition, this theory
In bright book, in blower device 1, the direction parallel with the central shaft C of blower device 1 is known as " axial direction ", it will be with blower device 1
The orthogonal directions of central shaft C be known as " radial direction ", will claim along the direction of the circular arc centered on the central shaft C of blower device 1
For " circumferential direction ".Similarly, for impeller 10, also in the state of being packed into blower device 1, by with the axial direction of blower device 1, diameter
To and circumferential consistent direction be briefly referred to as " axial direction ", " radial direction " and " circumferential direction ".In addition, in the present specification, in drum
In wind apparatus 1, upper and lower directions will be axially set as, relative to impeller 10,3 side of suction unit of housing 2 is set as, it is each so as to illustrate
Partial shape, position relationship.In addition, upper and lower directions simply to illustrate that and the title that uses, do not limit practical position and close
System and direction.
In addition, in the present specification, in refrigerator 100, the side equipped with door leaf 102a, 103a is set as front side, and
Side equipped with cold air access 131,132 is set as rear side, left and right will be set as relative to the orthogonal horizontal direction of front-rear direction
Direction will be set as lower direction, and the direction that will be far from floor F is set as direction, so as to illustrate towards the direction of floor F
The shape of each section, position relationship.In addition, the title that these directions are only intended to illustrate and use, does not limit practical position
Relationship and direction.
The overall structure ＞ of 1. refrigerators of ＜
The refrigerator for having the blower device of an illustrative embodiment of the utility model is illustrated.Fig. 1 is tool
The side view cutaway drawing of the refrigerator 100 of the blower device 1 of the embodiment of standby the utility model.In addition, arrow S represents cold airflow.
Refrigerator 100 is set on floor F, and (the storage of refrigerating chamber 102 being opened and closed by door leaf 102a is configured on the top of refrigerator 100
Room).The refrigerating chamber 103 (storeroom) being opened and closed by door leaf 103a is configured in the lower section of refrigerating chamber 102.
Refrigerating chamber 102 maintains refrigerated storage temperature (for example, 3 DEG C), stored refrigerated reserve.Mounting is equipped in refrigerating chamber 102
Multiple pallets 160 of reserve.Multiple housing grooves (not shown) are equipped in the door leaf 102a of refrigerating chamber 102.
Refrigerating chamber 103 is isolated by thermal wall 107 with refrigerating chamber 102, and maintains below freezing, freezen protective reserve.
Multiple storage boxes 170 of storage reserve are equipped in refrigerating chamber 103.Storage box 170 passes through the two side that is set in refrigerating chamber 103
Track support (not shown) can to move in the longitudinal direction.
Machine Room 150 is equipped in the behind of refrigerating chamber 103.Compressor 157 is configured in Machine Room 150.In compressor
157 connection condensers, expander (not shown) and cooler 111, pass through the refrigeration such as the driving of compressor 157, iso-butane
Agent recycles, so as to operate freeze cycle.Cooler 111 becomes the low temperature side of freeze cycle as a result,.
The cold air access 131 separated by backplate 106 is equipped in the behind of refrigerating chamber 103.In the behind of refrigerating chamber 102
Equipped with the cold air access 132 connected with cold air access 131.Cold air access 131 is separated into forepart 131a and rear portion by demarcation strip 135
131b, at rear portion, 131b is configured with cooler 111.As the cooler 111 of the low temperature side of freeze cycle and in cold air access 131
The air of circulation carries out heat exchange, so as to generate cold air.
Blower device 1 is configured in cold air access 131, and in the top of cooler 111.Blower device 1 is from axial suction
Gas and to the centrifugation blower device being circumferentially vented.The configuration of blower device 1 is respectively facing front lower there are two exhaust portion 4 (with reference to Fig. 2)
Side and back upper place.
Demarcation strip 106 of the cold air access 131 in the front of blower device 1 opens up outlet 109.Utilize blower device 1
Driving sends out cold air via outlet 109 to refrigerating chamber 103.Refrigerating chamber return port 122 is equipped in the lower part of refrigerating chamber 103.From
The cold air that refrigerating chamber 103 flows out returns to the lower part of cooler 111 via refrigerating chamber return port 122.
The outlet 108 of multiple discharge cold air is equipped on the top of cold air access 132.In addition, from the back side of refrigerating chamber 102
Lower part export return ventilation path (not shown).Return to the lower part that ventilation path is linked to cold air access 131.It is flowed from refrigerating chamber 102
The lower section of cooler 111 is returned to after going out by returning to the cold air of ventilation path.
The action ＞ of 2. refrigerators of ＜
In the refrigerator 1 of above structure, for example, when the temperature of refrigerating chamber 102 is higher than set temperature, 157 quilt of compressor
Driving.Freeze cycle is operated as a result, and cold air is generated by cooler 111.
The cold air generated by cooler 111 is using the driving of blower device 1 from the exhaust portion 4 of top and the exhaust portion of lower section
4 discharges.The cold air that exhaust portion 4 from below is discharged is sent to refrigerating chamber 103 via outlet 109.It is sent to refrigerating chamber 103
Cold air circulates in refrigerating chamber 103, is flowed out from refrigerating chamber return port 122 and returns to cooler 111.Quilt in refrigerating chamber 103 as a result,
Cooling.
In addition, the cold air sent out from the exhaust portion 4 of top flows into cold air access 132.From outlet 108 to refrigerating chamber 102
Discharge the cold air to circulate in cold air access 132.
The cold air for being expelled to refrigerating chamber 102 circulates forwards on pallet 160, with the reserve being placed on pallet 160
Heat exchange.Then reserve of the cooling in the housing groove (not shown) of door leaf 102a, flow direction lower section.
In the cold air that refrigerating chamber 102 circulates, via returning, ventilation path is (not shown) to return to cooler 111.Refrigerating chamber as a result,
It is cooled in 102.When the temperature in refrigerating chamber 102 is less than set temperature, compressor 157 stops.
The overall structure ＞ of 3. blower devices of ＜
Fig. 2~Fig. 6 is stereogram, vertical view, side view, side view cutaway drawing and the bottom view of blower device 1 respectively.Figure
7 be internal figure from the exhaust portion 4 of blower device 1.Blower device 1 has the 50 (reference of impeller 10 and motor in housing 2
Fig. 3).
Housing 2 has cap 2a and incorporating section 2b.It is equipped with what is penetrated through in an axial direction in the cap 2a for forming the upper surface of housing 2
Suction unit 3.Suction unit 3 has the canister portion 32 extended from the upper table of the cap 2a of housing 2 towards axial upside.In addition, in canister portion
32 be equipped with from upper end inwardly buckling and downwards (incorporating section 2b sides) extension horn mouth 31.As a result, the internal diameter of suction unit 3 with
It and glossily becomes smaller from axial upside towards axial downside.Cap 2a is in the top of the peripheral side of suction unit 3 covering impeller 10.
Incorporating section 2b covers the opening of upper surface using cap 2a.2b storages in incorporating section are around the central shaft C rotations extended up and down
The impeller 10 and motor 50 turned, the radial outside of the side covering impeller 10 of incorporating section 2b.In incorporating section, the side of 2b is equipped with more
A exhaust portion 4.In the present embodiment, if there are two exhaust portions 4.Exhaust portion 4 penetrates through incorporating section along direction orthogonal to the axial direction
2b, and it is configured at the side opposite each other of incorporating section 2b.
The lower surface (bottom surface) of incorporating section 2b has to the lower surface recess portion 2c being recessed axially below.Motor 50 is installed on down
The bottom surface of surface voids 2c.
Lower surface recess portion 2c, which has, to be configured at than blade 12 by axially below and to the peace of Directional Extension orthogonal to the axial direction
Dress portion 15 (with reference to Fig. 6).That is, mounting portion 15 is configured at lower surface recess portion 2c.It is equipped in mounting portion 15 and supplies to be installed on refrigerator 1
Screw insert (not shown) inserting hole 15a.Blower device 1 is installed on refrigerator 1 via mounting portion 15.
In addition it is also possible to replace cap 2a, and suction unit 3 is set on to the bottom surface of incorporating section 2b, motor 50 is installed on lid
Portion 2a.As long as that is, relative to the component for forming housing 2, suction unit 3 and exhaust portion 4 are suitably set.
Housing 2 forms the air duct 5 of connection suction unit 3 and multiple exhaust portions 4, and impeller 10 is configured in air duct 5.Air duct 5 has
There is air suction way 5a and multiple exhaust channel 5b.Air suction way 5a links suction unit 3 and impeller 10.Exhaust channel 5b links impeller
10 downstream side and exhaust portion 4.Exhaust channel 5b extends to direction orthogonal to the axial direction.In addition, two exhaust channel 5b are mutual
Extend round about.That is, on two exhaust channel 5b are dead in line.
Housing 2 is respectively provided with tongue 25 between impeller 10 and multiple exhaust portions 4.That is, air duct 5 (exhaust channel 5b) is in leaf
Tongue 25 is respectively provided between wheel 10 and each exhaust portion 4.In the present embodiment, if there are two tongues 25.That is, tongue 25
Number is even number.Tongue 25 is configured near impeller 10.As be described hereinafter, when driving blower device 1, using tongue 25, to
Exhaust channel 5b smoothly guides the air-flow A blown out from impeller 10, and dynamic pressure is transformed into static pressure.
That is, blower device 1 has the impeller 10 and storage impeller 10 around the central shaft C rotations extended up and down and forms wind
The housing 2 in road 5.Impeller 10 has the circumferential multiple blades 12 for being configured at central shaft C.The upper surface covering impeller 10 of housing 2
Top, and with the suction unit 3 that penetrates through in an axial direction.The radial outside of the side covering impeller 10 of housing 2, and with edge
Multiple exhaust portions 4 of direction perforation orthogonal to the axial direction.Housing 2 is respectively provided with tongue between impeller 10 and multiple exhaust portions 4
25。
The structure ＞ of 4. impellers of ＜
Impeller 10 has bottom plate 11 and multiple blades 12.In the present embodiment, equipped with 10 blades 12.That is, blade 12
Number be even number.Bottom plate 11 is made of resin forming product, and it is round to become vertical view.It is equipped in axial direction in the central portion of bottom plate 11
The prominent protruding portion 11a in side (3 side of suction unit).As shown in figure 5, the upper surface of protruding portion 11a is configured at than under horn mouth 31
End is on the lower.
The motor 50 for being installed on lower surface recess portion 2c is configured at the inside of protruding portion 11a.The center of protruding portion 11a (in
On mandrel C) equipped with the through hole (not shown) that the axle portion (not shown) of motor 50 is supplied to be pressed into.Link protruding portion 11a and axis as a result,
Portion 50a, bottom plate 11 are supported for rotate centered on central shaft C.In addition, as be described hereinafter, utilize the driving of motor 50, bottom plate
11 rotate on direction of rotation R (in Fig. 3, being viewed as clockwise from upper surface).
Multiple blades 12 and bottom plate 11 are integrally formed, and are configured at predetermined intervals on bottom plate 11 along the circumferential direction of central shaft C.
The radius D1 (with reference to Fig. 3) of the internal diameter of suction unit 3 is than the radial inner end of multiple blades 12 and the distance D2 of central shaft C
(with reference to Fig. 3) is big.In addition, in Fig. 3, for the radial inner end of multiple blades 12, in order at a distance of the distance whole phase of central shaft C
Deng, therefore on the circle K (in Fig. 3, being represented with chain-dotted line) centered on central shaft C.Therefore, the diameter of multiple blades 12 is inside
The distance D2 of end and central shaft C can also be regarded as the radius of the circle K of the radial inner end by multiple blades 12.In addition, multiple leaves
The upper axial end of piece 12 is accommodated in the radially inner side of canister portion 32, and is configured at the upper table of the cap 2a than housing 2 as illustrated in fig. 5
Face is by axial top.
In addition, cricoid circle portion 13 (ginseng of the top of multiple blades 12 positioned at radial outside and centered on central shaft C
According to Fig. 5) connection.That is, impeller 10 has the cricoid circle portion 13 linked at least part on the top of adjacent blade 12.Circle
Portion 13 and blade 12 are integrally formed.By circle portion 13, the rigidity of blade 12 can be improved.
The relationship ＞ of 5. blades of ＜ and tongue
Fig. 8 is the vertical view of the inside of blower device 1.Fig. 9 is putting for the major part for the inside for being exaggerated blower device 1
Big vertical view.The radial inner end of blade 12 be configured at than blade 12 radial outer end lean on impeller 10 direction of rotation R front sides.
That is, the inner circumferential end of blade 12 is configured at than outer circumference end by front of the R of direction of rotation.Blade 12 tilts radially as a result,.
In addition, the radial inner end of a blade 12 be configured at than other blades 12 radial outer end lean on impeller 10 rotation
Direction R front sides, other blade 12 are more adjacent to the direction of rotation R front sides of impeller 10 than the blade 12.
In addition, the radial outer end of multiple blades 12 to be configured at circumferential direction at equal intervals.Thereby, it is possible to improve the impeller 10 of rotation
Balance.
Centered on central shaft C, central angle formed by the radial outer end of arbitrary two blades 12 is being set as φ, will appointed
When central angle formed by the point CP closest to blade 12 of two tongues 25 of meaning is set as θ, central angle φ and central angle θ is different.
That is, centered on central shaft C, central angle φ formed by the radial outer end of arbitrary two blades 12 is all different from central angle θ.
In addition, central angle φ is the ゜ (m is 1~5 integer) of m × 36, central angle θ is smaller than 180 °.
In addition, intersect with a tongue 25 and the sectional area W1 of the flow path orthogonal with the air-flow A in air duct 5 and with difference
Other tongues 25 in a tongue 25 intersect and roughly the same with the sectional area W2 for the flow path that the air-flow A in air duct 5 is orthogonal.
The action ＞ of 6. blower devices of ＜
When than set temperature, high and refrigerator 100 compressor 157 is driven the temperature in refrigerating chamber 102, blower device 1
Motor 50 driven.When motor 50 is driven, impeller 10 is rotated centered on central shaft C.As a result, from suction unit 3 to shell
The inside intake air (cold air) of body 2.
The air of the inside of housing 2 is absorbed by between adjacent blade 12, using the impeller 10 of rotation to radial outside
Accelerate.Air after radial outside acceleration circulates between adjacent blade 12 between circulation circle portion 13 and bottom plate 11, Xiang Ye
The diameter of wheel 10 is blown out outward.It blows out to the diameter air outward of impeller 10 and circulates in air duct 5 (exhaust channel 5b), from row
Gas portion 4 is expelled to the outside of housing 2.
At this point, due to central angle φ and central angle θ differences, multiple blades 12 can be prevented simultaneously by multiple tongues
Near 25 radially inner side.Therefore, it is possible to prevent in two tongues 25 while generate noise, the noise of blower device 1 is reduced.
In addition, the number of tongue 25 is 2, the number n of blade 12 is even number, at this point, when central angle θ meet 180 °-
During 180 ° of 360 °/n ＜ θ ＜, the noise of blower device 1 can be not only reduced, but also the flow path of increase air duct 5 (exhaust channel 5b) is wide
Degree.In addition, the number n of blade 12 is not limited to 10, as long as even number.
5. first variation ＞ of ＜
In addition, as shown in Figure 10, can also the number of tongue 25 of blower device 1 be two, and the number of blade 12
It is 11 (odd numbers) that central angle θ is 180 °.In this case, because central angle θ and central angle φ is different, it is all also to prevent
Noise is generated simultaneously in two tongues 25, reduces the noise of blower device 1.In addition, because the number of blade 12 and tongue 25
Number is mutually prime number, therefore can reduce the reduction of the design freedom in air duct 5.If that is, the number of blade 12 and tongue 25
Number mutually for prime number, even if then the radial outer end of multiple blades 12 is configured at equal intervals it is circumferential and by multiple tongues
In the case that 25 are configured at circumferential direction at equal intervals, it can also prevent multiple blades 12 simultaneously by the radially inner side of multiple tongues 25
Near.Moreover, because central angle θ is 180 °, the flow path width of two exhaust channel 5b can be increased.In addition, blade 12
Number be not limited to 11, as long as odd number.
6. second variation ＞ of ＜
In addition, as shown in figure 11, can also the number of tongue 25 be 3 (odd numbers), and the number n of blade 12 is 10
(even number).Three exhaust channel 5b are radial to be configured at substantially equal intervals.By arbitrary two tongues 25 closest to leaf
When central angle formed by the point CP of piece 12 is set as θ, central angle φ and central angle θ is different.In this case, it can also prevent 3
A tongue 25 generates noise simultaneously, can reduce the noise of blower device 1.In addition, the number of tongue 25 is not limited to 3, only
If the odd number of 3 or more.In addition, the number n of blade 12 is not limited to 10, as long as even number.In addition, in tongue
25 when being 3, and when central angle θ meets 120 ° of 120 ° -360 °/n ＜ θ ＜, the flow path that can increase 3 exhaust channel 5b is wide
Degree.
According to the present embodiment, centered on central shaft C, in formed by the radial outer end of arbitrary two blades 12
When heart angle is set as φ and central angle formed by the point CP closest to blade 12 of arbitrary two tongues 25 is set as θ, central angle
φ and central angle θ is different.Thereby, it is possible to prevent near radially inner side of multiple blades 12 simultaneously by multiple tongues 25.Cause
This, can prevent in multiple tongues 25 while generate noise, can reduce the noise of blower device 1.In addition, tongue 25 and blade
As long as 12 number is multiple.
In addition, the radial outer end of multiple blades 12 is configured at circumferential direction at equal intervals.During thereby, it is possible to improve the rotation of impeller 10
Balance.
In addition, if the number of blade 12 and the number of tongue 25 are prime number mutually, the design that can reduce air duct 5 is free
The reduction of degree.
At this point, if central angle θ becomes 180 °, the air duct 5 (exhaust channel 5b) in the downstream side of impeller 10 can be increased
Flow path width.Therefore, it is possible to improve the blowing efficiency of blower device 1.
In addition, if the number of tongue 25 is even number, and the number of blade 12 is odd number, and central angle θ is 180 °, then
The flow path width in the air duct 5 (exhaust channel 5b) in the downstream side of impeller 10 can be increased.Therefore, it is possible to improve blower device 1
Blowing efficiency.
In addition, the number in tongue 25 is 2, and when the number n of blade 12 is even number, if central angle θ meet 180 °-
180 ° of 360 °/n ＜ θ ＜ can then increase the flow path width in air duct 5 (exhaust channel 5b).
In addition, the number in tongue 25 is 3, and when the number n of blade 12 is even number, if central angle θ meet 120 °-
120 ° of 360 °/n ＜ θ ＜ then in the case where sending out air to three directions, can also increase the stream in air duct 5 (exhaust channel 5b)
Degree of having a lot of social connections.
In addition, intersect with a tongue 25 and the sectional area W1 of the flow path orthogonal with the air-flow A in air duct 5 and with difference
Other tongues 25 in a tongue 25 intersect and roughly the same with the sectional area W2 for the flow path that the air-flow A in air duct 5 is orthogonal.By
This, the air quantity that can make the air-flow to circulate in multiple exhaust channel 5b (air duct 5) is uniform, can improve blowing efficiency.
In addition, the radial inner end of a blade 12 be configured at than other blades 12 radial outer end lean on impeller 10 rotation
Direction R front sides, other 12 to one blades of blade 12 are more adjacent to the direction of rotation R front sides of impeller 10.As a result, can
Enough prevent blade 12 inner end and the other blades 12 adjacent with the blade 12 outer end simultaneously by the radial direction of tongue 25
Inside.Therefore, it is possible to further reduce the noise of blower device 1.
In addition, the radius D1 of the internal diameter of suction unit 3 is bigger than the radial inner end of multiple blades 12 and the distance D2 of central shaft C.
Thereby, it is possible to increase the radial inner end of blade 12 opposed with suction unit 3 and the distance of radial outer end.Therefore, it is possible to increase with
The area of the opposed blade 12 of suction unit 3, a large amount of air is absorbed into housing 2 from suction unit 3.Therefore, it is possible to improve air blast
The blowing efficiency of device 1.
In addition, the top of multiple blades 12 is connected by the cricoid circle portion 13 centered on central shaft C.Thereby, it is possible to
Improve the rigidity of blade 12.Therefore, it is possible to inhibit the vibration of the blade 12 when impeller 10 rotates.As a result, it is possible to further drop
The noise of low blower device 1.
In addition, the internal diameter of suction unit 3 is glossily reduced with from axial upside towards axial downside.Thereby, it is possible to right
The air absorbed from suction unit 3 carries out rectification, smoothly guides between adjacent blade 12.Therefore, it is possible to improve blower device 1
Gettering efficiency.
In addition, suction unit 3 has the canister portion 32 extended from the upper table of housing 2 towards axial top.Moreover, multiple blades 12
Upper axial end be accommodated in the radially inner side of canister portion 32, and be configured at upper surface than housing 2 by axial top.Thereby, it is possible to
Increase the axial length of blade 12, increase the area of blade 12, so as to absorb a large amount of air from suction unit 3.Therefore,
The blowing efficiency of blower device 1 can be improved.
It is configured in addition, housing 2 has than blade 12 by axially below and to the installation of Directional Extension orthogonal to the axial direction
Portion 15, the lower surface of housing 2 have to the lower surface recess portion 2c being recessed axially below.Moreover, mounting portion 15 is configured at lower surface
Recess portion 2c.Thereby, it is possible to further increase the axial length of blade 12, increase the area of blade 12, so as to from air-breathing
Absorb a greater amount of air in portion 3.Therefore, it is possible to further improve the blowing efficiency of blower device 1.
In addition, refrigerator 100 has blower device 1.Thereby, it is possible to easily realize that the refrigerator of noise can be reduced.
In addition, refrigerator 100 have cooling preservation reserve refrigerating chamber 102 (storeroom) and refrigerating chamber 103 (storeroom),
Generate the cooler 111 of cold air and make cold air access 131 that refrigerating chamber 102 and refrigerating chamber 103 connect with cooler 111,
132.Moreover, blower device 1 is configured in cold air access 131.It is guided thereby, it is possible to not only reduce noise, but also by cold air to refrigeration
Room 102 and refrigerating chamber 103.In addition, storeroom can also only be the either side of refrigerating chamber 102 and refrigerating chamber 103.
In addition, in the present embodiment, blower device 1 is equipped on refrigerator 100, but blower device 1 can also be equipped on
Domestic electric appliances product other than various OA equipment, Medical Devices, transmission device and refrigerator 100 etc..
The utility model for example can be used in blower device and have the refrigerator of the blower device.
Claims (16)
1. a kind of blower device, has：
Around the impeller of the center axis rotation extended up and down；And
It stores above-mentioned impeller and forms the housing in air duct,
Above-mentioned impeller has the circumferential multiple blades for being configured at above-mentioned central shaft,
The radial inner end of above-mentioned blade be configured at than above-mentioned blade radial outer end lean on above-mentioned impeller direction of rotation front side,
The upper surface of above-mentioned housing covers the top of above-mentioned impeller, and has the suction unit penetrated through in an axial direction,
The side of above-mentioned housing covers the radial outside of above-mentioned impeller, and multiple with being penetrated through along direction orthogonal to the axial direction
Exhaust portion,
Above-mentioned housing is respectively provided with tongue between above-mentioned impeller and multiple above-mentioned exhaust portions,
Above-mentioned blower device is characterized in that,
Centered on above-mentioned central shaft,
Central angle formed by the radial outer end of the above-mentioned blade of any two is being set as φ, by most connecing for the above-mentioned tongue of any two
When central angle formed by the point of nearly above-mentioned blade is set as θ,
Above-mentioned central angle φ and above-mentioned central angle θ is different.
2. blower device according to claim 1, which is characterized in that
The radial outer end of multiple above-mentioned blades is equally spaced configured at circumferential direction.
3. blower device according to claim 1, which is characterized in that
The number of above-mentioned blade and the number of above-mentioned tongue are prime number mutually.
4. blower device according to claim 3, which is characterized in that
Above-mentioned central angle θ is 180 °.
5. blower device according to claim 4, which is characterized in that
The number of above-mentioned tongue is even number, and the number of above-mentioned blade is odd number.
6. blower device according to claim 1, which is characterized in that
It is 2 in the number of above-mentioned tongue, and when the number n of above-mentioned blade is even number, above-mentioned central angle θ meets 180 ° -360 °/n
180 ° of ＜ θ ＜.
7. blower device according to claim 1, which is characterized in that
It is 3 in the number of above-mentioned tongue, and when the number n of above-mentioned blade is even number, above-mentioned central angle θ meets 120 ° -360 °/n
120 ° of ＜ θ ＜.
8. blower device according to any one of claim 1 to 7, which is characterized in that
Intersect with an above-mentioned tongue and the sectional area of the flow path orthogonal with the air-flow in above-mentioned air duct and with different from above-mentioned one
Other above-mentioned tongues intersections of a above-mentioned tongue are simultaneously identical with the sectional area for the flow path that the air-flow in above-mentioned air duct is orthogonal.
9. blower device according to any one of claim 1 to 7, which is characterized in that
The radial inner end of one above-mentioned blade is configured at rotation side of the radial outer end by above-mentioned impeller of blades more above-mentioned than others
Side forwards, other above-mentioned blade blade more above-mentioned than said one are more adjacent to the direction of rotation front side of above-mentioned impeller.
10. blower device according to any one of claim 1 to 7, which is characterized in that
The radial inner end and the distance of above-mentioned central shaft of the multiple above-mentioned blades of radius ratio of the internal diameter of above-mentioned suction unit are big.
11. blower device according to any one of claim 1 to 7, which is characterized in that
The top of multiple above-mentioned blades is connected by the cricoid circle portion centered on above-mentioned central shaft.
12. blower device according to any one of claim 1 to 7, which is characterized in that
The internal diameter of above-mentioned suction unit is smoothly reduced with from axial upside towards axial downside.
13. blower device according to any one of claim 1 to 7, which is characterized in that
Above-mentioned suction unit has the canister portion extended from the upper table of above-mentioned housing towards axial top,
The upper axial end of multiple above-mentioned blades is accommodated in the radially inner side of above-mentioned canister portion, and is configured at the upper surface than above-mentioned housing
By axial top.
14. blower device according to any one of claim 1 to 7, which is characterized in that
Above-mentioned housing, which has, to be configured at than above-mentioned blade by axially below and to the mounting portion of Directional Extension orthogonal to the axial direction,
The lower surface of above-mentioned housing has to the lower surface recess portion being recessed axially below,
Above-mentioned mounting portion is configured at above-mentioned lower surface recess portion.
15. a kind of refrigerator, which is characterized in that
Has the blower device described in any one in claim 1 to claim 14.
16. refrigerator according to claim 15, which is characterized in that
Have the storeroom of cooling preservation reserve, generate the cooler of cold air and make above-mentioned storeroom and above-mentioned cooler
The cold air access of connection,
Above-mentioned blower device is configured in above-mentioned cold air access.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016206522A JP2018066346A (en) | 2016-10-21 | 2016-10-21 | Blower device and refrigerator including the same |
| JP2016-206522 | 2016-10-21 |
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| Publication Number | Publication Date |
|---|---|
| CN207471891U true CN207471891U (en) | 2018-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721364458.0U Active CN207471891U (en) | 2016-10-21 | 2017-10-20 | Blower device and the refrigerator for having the blower device |
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| Country | Link |
|---|---|
| JP (1) | JP2018066346A (en) |
| CN (1) | CN207471891U (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906609B (en) * | 2018-09-17 | 2021-12-21 | 重庆海尔制冷电器有限公司 | Air-cooled refrigerator |
| CN110906610B (en) * | 2018-09-17 | 2022-01-21 | 重庆海尔制冷电器有限公司 | Air-cooled refrigerator |
| EP3885678A1 (en) * | 2020-03-24 | 2021-09-29 | Electrolux Appliances Aktiebolag | A refrigeration appliance equipped with a fan system |
| EP3885680B1 (en) * | 2020-03-24 | 2024-03-13 | Electrolux Appliances Aktiebolag | A refrigeration appliance equipped with a fan assembly and a method for manufacturing said appliance |
| WO2021190774A1 (en) * | 2020-03-24 | 2021-09-30 | Electrolux Appliances Aktiebolag | A refrigeration appliance equipped with a refrigeration system having a fan for circulating air |
| KR102585192B1 (en) * | 2021-11-04 | 2023-10-06 | 엘지전자 주식회사 | Ventilating device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5566695A (en) * | 1978-11-14 | 1980-05-20 | Toshiba Corp | Centrifugal fan |
| JP2001317494A (en) * | 2000-04-28 | 2001-11-16 | Denso Corp | Centrifugal air blower |
| JP2002161895A (en) * | 2000-11-30 | 2002-06-07 | Sanyo Electric Co Ltd | Fan device and refrigerator using it |
| JP4735914B2 (en) * | 2001-03-26 | 2011-07-27 | 株式会社ノーリツ | Combustion device |
| JP3915067B2 (en) * | 2002-03-20 | 2007-05-16 | ミネベア株式会社 | Thin centrifugal fan |
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| JP2018066346A (en) | 2018-04-26 |
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