CN101270758B - Blower and air conditioner - Google Patents
Blower and air conditioner Download PDFInfo
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- CN101270758B CN101270758B CN200810086743XA CN200810086743A CN101270758B CN 101270758 B CN101270758 B CN 101270758B CN 200810086743X A CN200810086743X A CN 200810086743XA CN 200810086743 A CN200810086743 A CN 200810086743A CN 101270758 B CN101270758 B CN 101270758B
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- impeller
- gas fan
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
The invention provides a blower and an air conditioner. The blower had the structure as follows: an armature is arranged inside an impeller cup opening at one side of the periphery with blade part. Besides, the axial end of the armature is provided with a circuit substrate. A substrate cover is configured by the method of covering the circuit substrate and facing the opening of the impeller cup. The opening of the impeller cup is provided with a circular ring body. The extension part of the substrate cover and the projection of the circular ring body are arranged oppositely along radial direction, thereby forming minor clearance (mazy sealing).
Description
Technical field
The air conditioner that the present invention relates to gas fan and have this gas fan.Be particularly related to the gas fan on the automatic cleaning device that is used for the filter that air conditioner possesses.
Background technique
In recent years, as one of function of appending on the air conditioner, developing the automatic cleaning device of the filter of the inner air entry port of automatic cleaning air conditioner.Automatic cleaning device for example has following function: will sweep attached to the dust on the filter front surface, and sweep the dust acceptance division reception that the dust that falls is configured in the filter downside, and then the dust that receives will be discharged to air conditioner outside (outdoor) from exhaust port.Gas fan on automatic cleaning device, is equipped with in order to absorb dust and it to be discharged to the air conditioner outside.
In this gas fan, because the air inspiration that will comprise dust so dust invades the motor interior of gas fan, might cause the motor malrotation in gas fan.Especially, dust is attached on the circuit substrate that is provided on the gas fan, might cause short circuit.
Summary of the invention
Gas fan of the present invention possesses: impeller, and it has blade part and all base portions; Rotor magnet, it is configured in than the blade part of impeller more on the position near radially inner side; Armature, itself and rotor magnet are radially opposed; Shell, it keeps armature; Circuit substrate, it is disposed at the axial distolateral of armature; And the substrate lid, it covers the axial one side of circuit substrate.
And, in the substrate of the gas fan of the present invention lid, all base portions of impeller and than rotor magnet more near axial one distolateral between, full week be formed with labyrinth sealing around circumferential.
And gas fan of the present invention has housing, and this housing has suction port and relief opening.And, be formed with in the housing air stream that the rotation through impeller produces from suction port flow to the main ventilation path of relief opening and between housing and circuit substrate be different from the main ventilation path from the secondary ventilating path of suction port towards relief opening.The circuit substrate of facing with secondary ventilating path is covered by the substrate lid.
Description of drawings
Fig. 1 illustrates generalized section gas fan of the present invention, that cut vertically.
Fig. 2 a is the plan view that gas fan of the present invention is shown.
Fig. 2 b is the worm's eye view that gas fan of the present invention is shown.
Fig. 3 is the plan view that the shell of gas fan of the present invention is shown.
Fig. 4 is the generalized section that illustrates along the cutting of the arrow I-I among Fig. 3.
Fig. 5 is the worm's eye view that the shell of gas fan of the present invention is shown.
Fig. 6 is the plan view that the substrate lid of gas fan of the present invention is shown.
Fig. 7 illustrates the diagrammatic top view that the arrow II from Fig. 6 watches.
Fig. 8 is the generalized section that illustrates along the cutting of the arrow III-III among Fig. 6.
Fig. 9 illustrates from the rotor holder side to watch gas fan of the present invention in the diagrammatic top view that the substrate lid is assemblied in the state on the shell.
Figure 10 is the diagrammatic top view that the ring bodies of gas fan of the present invention is shown.
Figure 11 is the generalized section that the arrow IV-IV cutting in Figure 10 is shown.
Figure 12 is the plan view that the inside of the air conditioner that gas fan of the present invention has been installed is shown.
Figure 13 is generalized section gas fan, that cut vertically that comparative example is shown.
Figure 14 is the diagrammatic top view of user mode that the gas fan of comparative example is shown.
Embodiment
Below, with reference to description of drawings preferred implementation of the present invention.Gas fan F of the present invention shown in Fig. 1～Figure 11.As depicted in figs. 1 and 2, gas fan F by impeller P, impeller P be rotated drive electric motor M, substrate lid C, ring bodies R etc. constitute.In addition, symbol J representes the central shaft as the running shaft of impeller P etc.And symbol K representes to take in the housing of gas fan F.
Impeller P is one-body molded by resin material.And impeller P possesses: blade part 1, and it has one group of lug; And the impeller cup 2 of general cylindrical shape shape, one of which distolateral (being downside among Fig. 1) opening.All base portion 2b that impeller cup 2 has discoideus top plate portion 2a and links to each other with the periphery of top plate portion 2a.Blade part 1 is given prominence to around full week from the outer circumferential face of all base portion 2b and is formed.
Motor M is made up of rotor holder 3, rotor magnet 5, axle 6, shell 7, armature 8, circuit substrate 9 etc.And motor M is accommodated in the inside of impeller cup 2.
Through being carried out punch process, laminal sheet metal forms rotor holder 3.And rotor holder 3 is the general cylindrical shape shape of one distolateral (being downside among Fig. 1) opening.And, rotor holder 3 have discoideus end wall 3a and with the consecutive perisporium 3b of the outer periphery of end wall 3a.Rotor holder 3 be configured to the coaxial state of central shaft J under be fixed on the inside of impeller cup 2.On the inner peripheral surface of the perisporium 3b of rotor holder 3, circular rotor magnet 5 is installed.Central part at end wall 3a is formed with the axle fixing part 3c that is used for fixing axle 6.In addition, individual at this impeller cup 2 and rotor holder 3 for independently, but impeller cup 2 also can double as be rotor holder 3 and formation integratedly.
Carry out the die casting manufacturing through metallic material and form shell 7 excellent thermal conductivity such as aluminium.Fig. 3 illustrates the plan view of shell 7, and Fig. 4 illustrates along the sectional drawing of the arrow I-I among Fig. 3, and Fig. 5 illustrates the worm's eye view of shell 7.Like Fig. 3～shown in Figure 5, shell 7 has: the bearing 7b of portion cylindraceous, and it is formed with through hole 7a in the axial direction; And base portion 7c, it is formed on the 7b of bearing portion with flange shape.Base portion 7c is provided with the shank 7d that extends to axial downside.And (with reference to Fig. 2 (b)) is respectively arranged with screw hole 7e on 3 positions that upwards are separated from each other in the week of shank 7d, and this screw hole 7e is used for through screw (not shown) shell 7 being fixed to housing K.
Armature 8 by around have a plurality of coils circular parts constitute.As shown in Figure 1, armature 8 is fixed on the outer circumferential face of the 7b of bearing portion of shell 7.
Circuit substrate 9 is made up of roughly circular sheet material, and this sheet material has the external diameter external diameter about equally with rotor holder 3.And, a plurality of electronic unit group such as drive IC that the rotation of control motor M drives, transistor (being field-effect transistor (below abbreviate FET as) in this mode of execution) 14 is installed on the one side of circuit substrate 9, connects the wiring part 15 of the lead-in wire of connector.As shown in Figure 1, electronic unit group 14 is being inserted the axial upside of circuit substrate 9 from the 7b of bearing portion under the state of base portion 7c side.And circuit substrate 9 is fixed on the base portion 7c of shell 7 through screw.And circuit substrate 9 is configured to compare with armature 8 more near axial downside (axial one distolateral).
On 2 positions of axial upside on the inwall of the 7b of bearing portion of the formation through hole 7a of shell 7 and downside, be separately installed with bearing 16.Axial downside at through hole 7a is equipped with cover 18, and this cover 18 seals through hole 7a.And, be inserted into the through hole 7a with impeller P and fixing integratedly axle 6 the axial upsides of rotor holder 3 from the 7b of bearing portion.And axle 6 is supported to and can rotates freely by bearing 16.At this, the bearing 16 of this mode of execution is a ball bearing.And axle 6 is inserted in the bearing 16.
And, stop ring 19 is installed on axle 6.Prevent that through this stop ring 19 axle 6 from extracting from bearing 16.And this stop ring 19 can load and unload on axle 6.And the loading and unloading that are supported to through stop ring 19 can plug with respect to the 7b of bearing portion.Thereby, the balance that can easily proofread and correct impeller P.Its result can improve the volume production efficient of gas fan F.
As shown in Figure 1, impeller P is being installed under the state on the motor M, armature 8 becomes radially opposed with rotor magnet 5 in the internal configurations of impeller cup 2.And, supply with through accepting electric power via circuit substrate 9, thereby armature 8 is rotated driving with rotor magnet 5 cooperations to impeller cup 2 from external power supply (not shown).Circuit substrate 9 covers the opening of rotor holder 3.Thus, circuit substrate 9 can play and prevent that dust from invading the effect of the inside of rotor holder 3.And, through on the face of the opposition side of the one side of circuit substrate 9, being on the upper surface, and between the lower end surface of the lower end surface of the perisporium 3b of rotor holder 3 and rotor magnet 5 micro gap is set vertically, thereby forms labyrinth sealing.
Substrate lid C is the one-body molded article of resin material.Fig. 6 illustrates the plan view of substrate lid C, and Fig. 7 illustrates along the sectional drawing of the arrow II among Fig. 6, and Fig. 8 illustrates along the sectional drawing of the arrow III-III among Fig. 6.Like Fig. 6～shown in Figure 8, substrate lid C has the main wall portion 20 of circular plate shape.And main wall portion 20 is provided with the 1st notch part 21 and the 2nd notch part 22.Form the abutment wall 24 of extending along axially (the single-point line direction of Fig. 6) of the 1st notch part 21.Axial downside at the peripheral part (being scribed ss the radial outside at center with the single-point of Fig. 6) of main wall portion 20 forms extending portion 25 around circumferential in full week.Extending portion 25 is arranged to along with towards axial downside and the radius vector outward inclining.And, on the axial upside of the peripheral part of main wall portion 20, around the circumferential dustproof portion 27 that is formed with in full week.At this, constitute the outer circumferential face of substrate lid C by the outer circumferential face of the outer circumferential face of the outer circumferential face of main wall portion 20, extending portion 25 and dustproof portion 27.And the outer circumferential face of extending portion 25 is along with towards axial downside and the plane of inclination of radius vector outward inclining.
As shown in Figure 1, substrate lid C inserts the axial upside of the 2nd notch part 22 from the 7b of bearing portion under the state of axial downside at extending portion 25.And substrate lid C is fixed on the base portion 7c of shell 7 by screw.Substrate lid C is disposed between the base portion 7c of circuit substrate 9 and shell 7 on the position vertically.
C is installed under the state on the gas fan F at the substrate lid, and is as shown in Figure 1, on the one side that is covered by substrate lid C of circuit substrate 9, electronic unit group 14 is installed.And the upper end portion of the dustproof portion 27 of substrate lid C and the one side of circuit substrate 9 are approaching.And electronic unit group 14 is disposed at the radially inner side of dustproof portion 27.Through this structure, dustproof portion 27 can prevent that dust is attached on the electronic unit group 14.In addition, wiring part 15 is from the 1st notch part 21 outstanding (with reference to Fig. 2).
And, the part (heat dissipation region 28) of the 2nd notch part 22 among the substrate lid C and a part of opposed (with reference to Fig. 7) of the main electronic unit group 14 of circuit substrate 9.And, be configured on the position identical with this heat dissipation region 28 and with the base portion 7c of the opposed vertically shell 7 of a part of these electronic unit groups 14 on, be formed with radiating part 7f (with reference to the clathrate line of Fig. 3).Radiating part 7f forms the shape roughly the same with the heat dissipation region of substrate lid C 28.And radiating part 7f is inserted in the heat dissipation region 28.That is, radiating part 7f forms lower surface than the main wall portion 20 of substrate lid C more near axial upside.Particularly the upper surface of radiating part 7f forms upper surface than the main wall portion 20 of substrate lid C more near axial upside in this mode of execution.And radiating part 7f is configured to the part of electronic unit group 14 approaching in the axial direction.Therefore, the heat of electronic unit group 14 generations rejects heat to the outside of motor M via the radiating part 7f of shell 7.So can effectively suppress the heating of electronic unit group 14.Particularly radiating part 7f be configured to electronic unit group 14 among during the approaching in the axial direction state of the bigger drive IC of heating or transistor, can further improve the effect that suppresses 14 heatings of electronic unit group.
Like Figure 10 and shown in Figure 11, ring bodies R is the one-body molded article of the resin material of toroidal.And, the protuberance 31 that ring bodies R has all sidepieces 30 and gives prominence to radial outside from all sidepieces 30.And, as shown in Figure 1, all sidepieces 30 of ring bodies R are inserted between impeller cup 2 and the rotor holder 3.Especially, ring bodies R is installed on the outer circumferential face of perisporium 3b of rotor holder 3.And all sidepieces 30 of ring bodies R are side-prominent down to axially from all base portion 2b of the perisporium 3b of rotor holder 3 and impeller cup P.Radially opposed position, plane of inclination on all sidepieces 30 of ring bodies R and the outer circumferential face extending portion 25 that is arranged at substrate lid C is provided with the plane of inclination, and this plane of inclination is towards axial downside radius vector outward inclining.This in week sidepiece 30 plane of inclination with the acute angle size of the plane of inclination of acute angle size that axially constitutes and extending portion 25 and axial formation about equally.And the protuberance 31 of ring bodies R is more side-prominent down to axially than rotor magnet 5.
Shown in Figure 1, than rotor magnet 5 more on the position near axial downside, the inner peripheral surface of the outer circumferential face of substrate lid C and all sidepieces 30 of ring bodies R is radially opposed across micro gap 32.That is, the inner peripheral surface by all sidepieces 30 of the outer circumferential face of substrate lid C and ring bodies R forms labyrinth sealing.Utilize the moulding article of resin material to form substrate lid C and ring bodies R, and impeller P and motor M be parts independently,, thereby can easily realize requiring high-precision labyrinth sealing through formation labyrinth sealing.In addition, form the shape of complicacy owing to can be easily substrate be covered C with ring bodies R, thereby can improve the degrees of freedom of labyrinth sealed shape.Therefore, can easily realize high performance labyrinth sealing.And the part of the axial downside of the micro gap 32 that is made up of the inner peripheral surface of the outer circumferential face of substrate lid C and ring bodies R is along with towards axial downside and the radius vector outward inclining.Through this structure, can come further to prevent that dust is from micro gap 32 intrusions by the centrifugal force that rotation produced owing to impeller cup 2 grades.
And circuit substrate 9 forms circular plate shape, and is opposed with the inner peripheral surface of all sidepieces 30 of ring bodies R diametrically.And the inner peripheral surface of the side of circuit substrate 9 and all sidepieces 30 radially forms micro gap, thereby constitutes labyrinth sealing.Through this structure, can prevent further that dust from invading motor interior.
Figure 13 illustrates the example with the gas fan F of this mode of execution gas fan relatively.Shown in figure 13, gas fan is made up of impeller and motor, and this impeller has: the impeller cup 102 of general cylindrical shape shape, one distolateral (being downside among Figure 13) opening that it is axial; And blade part 101, its radial outside to impeller cup 102 is outstanding.Motor is made up of the rotor holder 103 of the inside of being fixed in impeller cup 102, rotor magnet 105, axle 106, shell 107, armature 108, circuit substrate 109 etc.
And shown in figure 14, the gas fan of gas fan F and comparative example is configured in the housing K, and this housing K is arranged at from suction port towards the way of the passage 138 of relief opening.
At this, shown in figure 14, the air stream in the housing K that the gas fan through gas fan F and comparative example produces forms following two path: at impeller upside flow air flow path (main ventilation path t1); And the secondary path (secondary ventilating path t2) that raps around to impeller downside (opening side) from the slit between the wall that is present in impeller and housing K.
In the gas fan of comparative example; Shown in figure 13; Rotor holder 103 grades of motor are in the slit between the static parts of parts and shell 107, the circuit substrate 109 etc. of center rotation with axle 106; The dust that comprises in the air stream of secondary ventilating path t2 might invade motor interior, causes the rotation of motor unusual.
But, among the gas fan F of the present invention, form labyrinth sealing by the inner peripheral surface of all sidepieces 30 of the outer circumferential face of substrate lid C and ring bodies R, thereby the air stream that can suppress secondary ventilating path t2 invades motor interior.Therefore, it is unusual to prevent the rotation of motor.
Especially, as shown in Figure 1, on the lower surface of the extending portion 25 of the lower surface of ring bodies R and substrate lid C, form plane of inclination 33, this plane of inclination 33 is along with towards radially inner side and to axial tilt down.The plane of inclination of the distolateral end that becomes extending portion 25 among the plane of inclination 33 form with the plane of inclination of a distolateral end that will become ring bodies R to radially inner side prolong and the virtual plane of inclination that obtains (dotted portion that extends from extending portion 25 among Fig. 1) be connected, perhaps than virtual plane of inclination more near axial upside.Through this structure, can suppress the outer circumferential face that the air stream along the plane of inclination of ring bodies R among the air stream of secondary ventilating path t2 collides extending portion 25.Therefore, can prevent that this air stream from invading in the labyrinth sealing.Its result, the air stream that can further suppress secondary ventilating path t2 invades motor interior.
The gas fan F that is made up of above structure goes for the air conditioner that for example is equipped with filter 35 and has the automatic cleaning device S that cleans this filter 35 automatically.That is, gas fan F of the present invention is slim, so can realize the miniaturization of automatic cleaning device S.Therefore, automatic cleaning device S can be arranged in the confined space in the air conditioner.
Specifically, shown in figure 12, can be used in the automatic cleaning device S of air conditioner.The automatic cleaning device S of this air conditioner comprises: cleaning arm 36, and its outer surface with the filter 35 of air conditioner becomes arranged opposite, and it is mobile to slide; Dust acceptance division 37, it is connected with cleaning arm 36, receives cleaning arm 36 and sweeps the dust that falls; And passage 38, it is discharged to the air conditioner outside with the dust in the dust acceptance division 37.And, the suction port that is connected with dust acceptance division 37 and and the relief opening of the passage 38 of the external communications of air conditioner between be provided with housing K, the set inside of this housing K has gas fan F.
As shown in Figure 1, housing K is made up of the casing that forms ventilating path, and air stream passes through in this ventilating path inside.And, on the inside surface of side wall of housing K, being formed with stepped part 40, this stepped part 40 is to foreign side's depression of housing K.In the screw hole 7e that screw is screwed into shell 7, gas fan F is fixed on the stepped part 40.And impeller P is configured in the upside of stepped part 40.
Follow the rotation of impeller P, form and flow to the air stream of exhaust side, thereby the air that comprises dust is discharged to the air conditioner outside from air inlet side.At this moment, shown in Figure 1, be formed with following two path in the inside of housing K: the path of the script of side flow on impeller P (main ventilation path T1); And the secondary path (secondary ventilating path T2) that is around to the downside of impeller P from the slit between the wall that is present in impeller P and housing K.In addition, the arrow among Fig. 1 is represented air flow.And the air stream among Fig. 1 is identical with the air stream of Figure 13.
The air-flow that in secondary ventilating path T2, flows to exhaust side from air inlet side at first is directed into central shaft J side by plane of inclination 33 guiding of ring bodies R.At this moment, through the interaction between centrifugal force and the plane of inclination 33, can effectively suppress dust and invade micro gap 32 (labyrinth sealing).And the downside of impeller P stops up the opening of rotor holder 3 by substrate lid C etc. fully, thus can prevent dust invade in the rotor holder 3 and dust attached on the circuit substrate 9.Afterwards, the air stream of secondary ventilating path T2 is directed into exhaust side by extending portion 25 guiding of the substrate of radius vector outward inclining lid C.Make the length of micro gap 32 form longlyer through this extending portion 25, and the flow direction of the air stream of secondary ventilating path T2 is from the flow direction that will get into micro gap 32 and change into the flow direction of leaving from micro gap 32.Therefore, can further suppress dust and invade micro gap 32.
And, utilize substrate lid C to cover the position of the circuit substrate of facing with secondary ventilating path T2 9.Through this structure, the dust of air stream that can prevent secondary ventilating path T2 is attached on the circuit substrate 9.
Gas fan F of the present invention and the mode of execution that the air conditioner of this gas fan F is installed more than have been described, but have been the invention is not restricted to above-mentioned mode of execution.
For example, impeller P of the present invention has the impeller cup 2 of the cup-shaped of the axial upside that covers rotor holder 3, but the invention is not restricted to this.Impeller not necessarily will have impeller cup 2, as long as can the ring-shaped member of maintenance blade part be fixed on rotor holder or axle upward.That is, impeller also can be the shape of axial both-side opening.
And; Among the impeller P for example of the present invention; Ring bodies R is installed on the inner peripheral surface of all base portion 2b, and constitutes labyrinth sealing, but the invention is not restricted to this through the micro gap 32 that on radially position between the outer circumferential face of the inner peripheral surface of all sidepieces 30 of ring bodies R and substrate lid C, forms.For example, all base portions of impeller and ring bodies can form parts.Under this situation, constitute labyrinth sealing through the micro gap that on radially position between the inner peripheral surface of all base portions of the outer circumferential face of substrate lid C and impeller, forms.
And for example constituting ring bodies R of the present invention and labyrinth sealed substrate lid C is the parts that cover circuit substrate 9, but the invention is not restricted to this.For example, under the situation at the exterior arrangement circuit substrate of gas fan, the substrate lid need not to form the shape that covers circuit substrate.Get final product so long as cover opening, formation ring bodies and the labyrinth sealed cover of impeller.
Claims (18)
1. gas fan, it has:
Impeller, it is the center rotation with predetermined central shaft, has all base portions of the general cylindrical shape shape of blade part and an axial at least distolateral opening;
Rotor magnet, it is configured in than the said blade part of said impeller more near the position of radially inner side;
Armature, the internal surface of its outer surface and said rotor magnet are radially across the slit and opposed;
Shell, it keeps said armature;
Circuit substrate, it is disposed at the axial distolateral of said armature; And
The substrate lid, it covers the axial one side of said circuit substrate,
Between the said rotor magnet of ratio of said all base portions of said substrate lid and said impeller is more near axial one distolateral position, full week form labyrinth sealing around circumferential.
2. gas fan according to claim 1, wherein said labyrinth sealing is formed by the slit radially between the inner peripheral surface of said all base portions of the outer circumferential face of said substrate lid and said impeller.
3. gas fan according to claim 2 wherein has the plane of inclination on the said outer circumferential face of said substrate lid, the said plane of inclination on the outer circumferential face of said substrate lid is along with towards axial one distolateral and radius vector outward inclining,
Have the plane of inclination on the inner peripheral surface of said all base portions of said impeller, the said plane of inclination of said impeller is along with towards axial one distolateral and radius vector outward inclining,
Said labyrinth sealing has by the formed position, slit radially between the said plane of inclination of the said plane of inclination of said substrate lid and said impeller.
4. gas fan according to claim 2, wherein said substrate lid has:
The main wall portion of substantially planar, it covers said circuit substrate; And
Extending portion, it is arranged at the radial outside of said main wall portion, with respect to said main wall portion along roughly extending axially,
Said labyrinth sealing is formed by the slit radially between the inner peripheral surface of said all base portions of the outer circumferential face of the said substrate lid that comprises said extending portion and said impeller.
5. gas fan according to claim 4, wherein said substrate lid has dustproof portion, and this dustproof portion is arranged at the radial outside of said main wall portion, extends towards said circuit substrate from said main wall portion,
Said dustproof portion is around circumferential the forming of said main wall portion in full week,
Said labyrinth sealing is formed by the slit radially between the inner peripheral surface of said all base portions of the outer circumferential face of the said substrate lid that comprises said dustproof portion and said impeller.
6. gas fan according to claim 4, the internal surface of the said extending portion of wherein said substrate lid is along with towards axial one distolateral and radius vector outward inclining.
7. gas fan according to claim 2, wherein said substrate lid has:
The main wall portion of substantially planar, it covers said circuit substrate; And
Dustproof portion, it is arranged at the radial outside of said main wall portion, extends towards said circuit substrate from said main wall portion,
Said dustproof portion is around circumferential the forming of said main wall portion in full week,
Said labyrinth sealing is formed by the slit radially between the inner peripheral surface of said all base portions of the outer circumferential face of the said substrate lid that comprises said dustproof portion and said impeller.
8. gas fan according to claim 7 wherein is equipped with a plurality of electronic unit groups on the said one side of said circuit substrate,
Said electronic unit configuration set than said dustproof portion more near the position of radially inner side.
9. gas fan according to claim 7, wherein
Said all base portions of said impeller comprise circular ring bodies, and this ring bodies is the parts that are independent of said impeller,
Said labyrinth sealing is formed by the slit radially between the inner peripheral surface of the outer circumferential face of said substrate lid and said ring bodies.
10. gas fan according to claim 2, wherein
Said all base portions of said impeller comprise circular ring bodies, and this ring bodies is the parts that are independent of said impeller,
Said labyrinth sealing is formed by the slit radially between the inner peripheral surface of the outer circumferential face of said substrate lid and said ring bodies.
11. gas fan according to claim 2, wherein
An axial distolateral end face of said all base portions of said impeller is provided with the plane of inclination, and the said plane of inclination of said impeller is towards radial outside and to axial the other end tilt,
Said substrate covers to have:
The main wall portion of substantially planar, it covers said circuit substrate; And
Extending portion, it is arranged at the radial outside of said main wall portion, with respect to said main wall portion along roughly extending axially,
An axial distolateral end of said extending portion be formed on with said plane of inclination on identical in the axial direction position, the virtual plane of inclination that said extending portion extends or be formed on more distolateral near axial another than this virtual plane of inclination.
12. gas fan according to claim 2, wherein said labyrinth sealing is formed by the slit radially between the inner peripheral surface of said all base portions of the side of said circuit substrate and said impeller.
13. gas fan according to claim 2, wherein said rotor magnet forms ring-type,
Through axial one of said rotor magnet distolateral end face and in the axial direction and the axial slit between the opposed said circuit substrate of this end face form labyrinth sealing.
14. gas fan according to claim 1, wherein said shell is formed by metallic material,
A plurality of electronic unit groups are installed on the said one side of said circuit substrate,
Said substrate lid has the main wall portion of the substantially planar that covers said circuit substrate,
In said main wall portion with said a plurality of electronic unit groups in a part of opposed position on be formed with notch part,
Said shell radially with on the roughly the same position that makes progress in week is being formed with radiating part with a part that is configured in the said electronic unit group in the said notch part; This radiating part contacts with the part of this electronic unit group or is approaching, thus the heat that will in the part of this electronic unit group, produce heat radiation.
15. gas fan according to claim 14, a part that wherein is accommodated in the said electronic unit group of said notch part comprise the drive IC of the rotation driving of controlling said impeller and any at least side in the transistor.
16. a gas fan, it has:
Impeller, it is the center rotation with predetermined central shaft, has all base portions of the general cylindrical shape shape of blade part and an axial at least distolateral opening;
Rotor magnet, it is configured in than the said blade part of said impeller more on the position near radially inner side;
Armature, the internal surface of its outer surface and said rotor magnet are radially across the slit and opposed;
Shell, it keeps said armature; And
Circuit substrate, it is disposed at the axial distolateral of said armature,
Said all base portion formation labyrinth sealed covers with said impeller are installed on said circuit substrate or said shell.
17. an air conditioner, it is equipped with the described gas fan of claim 1.
18. the filter automatic cleaning device of the filter that air conditioner according to claim 17, wherein said blower-use are possessed in the said air conditioner of automatic cleaning.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007072935A JP5092477B2 (en) | 2007-03-20 | 2007-03-20 | Blower and air conditioner |
| JP2007-072935 | 2007-03-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101270758A CN101270758A (en) | 2008-09-24 |
| CN101270758B true CN101270758B (en) | 2012-02-22 |
Family
ID=39905130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810086743XA Active CN101270758B (en) | 2007-03-20 | 2008-03-20 | Blower and air conditioner |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5092477B2 (en) |
| CN (1) | CN101270758B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5636788B2 (en) | 2009-08-03 | 2014-12-10 | 日本電産株式会社 | Blower fan |
| JP5744679B2 (en) * | 2011-08-30 | 2015-07-08 | ミネベア株式会社 | Blower |
| JP6165330B2 (en) * | 2014-05-20 | 2017-07-19 | 三菱電機株式会社 | Indoor unit for air conditioning |
| US10136532B2 (en) * | 2017-02-17 | 2018-11-20 | International Business Machines Corporation | Dust guard structure |
| CN110857697B (en) * | 2018-08-24 | 2021-06-22 | 日本电产株式会社 | Blower fan and blower device |
| CN110425169B (en) * | 2019-08-16 | 2020-04-10 | 浙江省东阳市华东暖通设备有限公司 | Intelligent pipeline fan |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2367843Y (en) * | 1998-09-30 | 2000-03-08 | 浙江上风实业股份有限公司 | Sealing device for centrifugal ventilator |
| JP2001248590A (en) * | 2000-03-03 | 2001-09-14 | Toyo Radiator Co Ltd | Sealing structure for fan |
| JP2002106490A (en) * | 2000-09-28 | 2002-04-10 | Toyo Radiator Co Ltd | Sealing structure for fan |
| EP1325702A2 (en) * | 2002-01-03 | 2003-07-09 | Lg Electronics Inc. | Centrifugal blower for vacuum cleaner |
| CN1221769C (en) * | 2002-10-30 | 2005-10-05 | 三洋电机株式会社 | Air conditioner |
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| JPH0247276Y2 (en) * | 1987-03-31 | 1990-12-12 | ||
| JPH0192599A (en) * | 1987-10-01 | 1989-04-11 | Seiko Electronic Components Ltd | Axial fan motor structure |
| JP3514953B2 (en) * | 1997-07-22 | 2004-04-05 | 山洋電気株式会社 | Cooling fan drive control device for motor with cooling fan |
| JP3510120B2 (en) * | 1998-10-07 | 2004-03-22 | 山洋電気株式会社 | Blower with waterproof structure |
| JP3694224B2 (en) * | 2000-08-22 | 2005-09-14 | 山洋電気株式会社 | Centrifugal fan with waterproof structure |
| JP2002340395A (en) * | 2001-05-18 | 2002-11-27 | Fujitsu General Ltd | Air conditioner |
| JP4479472B2 (en) * | 2004-11-08 | 2010-06-09 | パナソニック株式会社 | Air conditioner |
| JP2006188991A (en) * | 2005-01-06 | 2006-07-20 | Nidec Shibaura Corp | Blower |
| JP2006308220A (en) * | 2005-04-28 | 2006-11-09 | Matsushita Electric Ind Co Ltd | Indoor unit for air conditioner |
-
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- 2007-03-20 JP JP2007072935A patent/JP5092477B2/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2367843Y (en) * | 1998-09-30 | 2000-03-08 | 浙江上风实业股份有限公司 | Sealing device for centrifugal ventilator |
| JP2001248590A (en) * | 2000-03-03 | 2001-09-14 | Toyo Radiator Co Ltd | Sealing structure for fan |
| JP2002106490A (en) * | 2000-09-28 | 2002-04-10 | Toyo Radiator Co Ltd | Sealing structure for fan |
| EP1325702A2 (en) * | 2002-01-03 | 2003-07-09 | Lg Electronics Inc. | Centrifugal blower for vacuum cleaner |
| CN1221769C (en) * | 2002-10-30 | 2005-10-05 | 三洋电机株式会社 | Air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2008232024A (en) | 2008-10-02 |
| JP5092477B2 (en) | 2012-12-05 |
| CN101270758A (en) | 2008-09-24 |
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