CN110319035A - Centrifugal fan - Google Patents
Centrifugal fan Download PDFInfo
- Publication number
- CN110319035A CN110319035A CN201910089357.4A CN201910089357A CN110319035A CN 110319035 A CN110319035 A CN 110319035A CN 201910089357 A CN201910089357 A CN 201910089357A CN 110319035 A CN110319035 A CN 110319035A
- Authority
- CN
- China
- Prior art keywords
- boss
- base plate
- motor
- main body
- circuit board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000002093 peripheral effect Effects 0.000 description 12
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
-
- 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/626—Mounting or removal of fans
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The present invention provides a kind of centrifugal fan.One mode of centrifugal fan of the invention includes: the fan main body with the multiple blades arranged in the circumferential direction around central axis；And the motor that at least part is accommodated in the receiving recess portion for being formed in the central portion of the fan main body, and rotates the fan main body around the central axis.The motor has the base component for being fixed on mounting object object far from the side for accommodating recess portion.The base component includes the base plate with the mounting surface abutted with the mounting object object；And it is formed in the base plate, and there are the multiple boss for the internal thread hole being screwed into for the bolt member for connecting with the mounting object object.The face of the boss from the side opposite with the mounting surface in the base plate is more prominent to the receiving recess portion side than the end of the base plate side in the blade of the fan main body.
Description
Technical field
The present invention relates to centrifugal fans.
Background technique
It is wide in household appliance, OA equipment, the cooling of industrial equipment, ventilation, air conditioning or for motor vehicle pressure fan etc.
It is general to use centrifugal fan (centrifugal fan).
It is recorded in Japanese Kokai special open 2017-115796 bulletin including multiple with arranging in the circumferential
The centrifugal fan of the impeller of blade and the motor for rotating impeller.
In such as above-mentioned centrifugal fan, in order to realize miniaturization, the slimming of the device with fan, it is expected that securely
Fan is installed, and makes motor itself miniaturization for constituting fan.
Summary of the invention
In view of the foregoing, the first purpose is that fan can be installed securely and can make wind by providing one kind to the present invention
Fan the centrifugal fan of itself miniaturization.
The centrifugal fan of illustrative embodiment of the invention includes: fan main body, the fan main body have around
The multiple blades arranged in the circumferential direction of central axis；And motor, at least part of the motor, which is accommodated in, is formed in institute
It states in the receiving recess portion of the central portion of fan main body, and rotates the fan main body around the central axis.The motor exists
There is the base component for being fixed on mounting object object far from the side for accommodating recess portion, the base component includes base plate,
The base plate has the mounting surface abutted with the mounting object object；And multiple boss, the multiple boss are formed in institute
Base plate is stated, and there is internal thread hole, the internal thread hole is screwed into for the bolt member for linking with the mounting object object.
The boss is projected into from the face of the side opposite with the mounting surface in the base plate than described in the fan main body
The position for accommodating recess portion side is more leaned in the end of the base plate side in blade.
According to one method of the present invention, fan can be installed securely and can make fan itself by being capable of providing one kind
The centrifugal fan of miniaturization.
There is the detailed description of the preferred embodiment for the present invention below, referring to attached drawing, can be more clearly understood that the present invention
Above-mentioned and other feature, element, step, features and advantages.
Detailed description of the invention
Fig. 1 is the perspective view for showing the centrifugal fan of the motor with an embodiment.
Fig. 2 is the perspective view of the centrifugal fan of an embodiment from the direction different from Fig. 1.
Fig. 3 is the cross-sectional view along central axis of the centrifugal fan of an embodiment.
Fig. 4 is the perspective view for showing a part of the impeller of centrifugal fan of an embodiment.
Fig. 5 is the perspective view for showing the motor of an embodiment.
Fig. 6 is the cross-sectional view along central axis of the motor of an embodiment.
Fig. 7 is the perspective view for showing the wiring maintaining part for the motor for being set to an embodiment.
Symbol description
1 ... centrifugal fan, 10 ... impellers (fan main body), 13s ... accommodate recess portion, 18 ... blades, the end 18e ..., 20 ...
Motor, 30 ... rotors, 31 ... axis, 40 ... stators, 50 ... circuit boards, 80 ... base components, 82 ... base plates, 82f ... mounting surface,
The face of 82g ... opposite side, 85 ... boss, 85s ... terminal part, 86 ... internal thread holes, 100 ... mounting object objects, 110 ... bolt portions
Part, J ... central axis.
Specific embodiment
In the following figures, for easy understanding each structure, make sometimes scale bar in actual structure and each structure and
The differences such as quantity.In the following description, the side in the direction with centerline axis parallel is referred to as " upside ", will be put down with central axis
The other side in capable direction is referred to as " downside ".In addition, upside and downside simply to illustrate that and the direction that uses, do not limit
Actual positional relationship and direction.Also, in addition to especially indicating, it will be referred to as " axial direction " with the direction of centerline axis parallel, it will
Radial direction centered on central axis J is referred to as " radial direction ", by the circumferential direction centered on central axis J i.e. around central axis J's
The direction of axis is referred to as " circumferential direction ".Moreover, in the following description, " overlook view " refers to the state from end on observation.
Fig. 1 is the perspective view for showing the centrifugal fan of the motor with present embodiment.Fig. 2 is from the side different from Fig. 1
To the perspective view of the centrifugal fan of observation present embodiment.Fig. 3 is the cuing open along central axis of the centrifugal fan of present embodiment
View.Fig. 4 is the perspective view for showing a part of the impeller of centrifugal fan of present embodiment.
As shown in FIG. 1 to 3, the centrifugal fan 1 of present embodiment includes the impeller of rotation centered on central axis J
10, motor 20 and base component 80.Centrifugal fan 1 is sent out using centrifugal force to radial outside by the rotation of impeller 10
The centrifugal fan of air.Hereinafter, each section is described in detail.
Impeller 10 includes the 1st wheel member 11 and the 2nd wheel member 12.
As shown in Figure 3, Figure 4, the 1st wheel member 11 integrally comprises cup portion 13, curved face part 15 and main board portion 16.
Cup portion 13 has top plate portion 13a and cylindrical portion 13b.Top plate portion 13a is plate-like, configuration with central axis J (reference
Fig. 1) in vertical face.The central portion of top plate portion 13a be provided with along axially through through hole 13h.Cylindrical portion 13b is in from top
The outer peripheral edge of the radial outside of the plate portion 13a tubular that the other side (being lower section in Fig. 3) extends in the axial direction.The periphery of cylindrical portion 13b
The outer diameter of face 13f is gradually expanded from top plate portion 13a towards the axial other side.Cup portion 13 has to the axial direction along central axis J
The recess portion 13s of another side opening.At least part of motor 20 is accommodated in the recess portion 13s of cup portion 13.
Curved face part 15 and the cylindrical portion 13b of cup portion 13 are continuously arranged.The axial another lateral diameter of diameter direction of curved face part 15
It is gradually expanded outward.Curved face part 15 is directed towards the curved surface of radially inner side protrusion.
Main board portion 16 is continuously arranged in the radial outside of curved face part 15.Main board portion 16 is vertically configured with central axis J.Such as
Shown in Fig. 2, Fig. 3, in the outer peripheral edge portion of main board portion 16, the other side has been protrusively provided continuous rib 16r in the circumferential in the axial direction.
The circumferentially spaced interval rib 16r is provided with multiple recess portion 16s.
As shown in Figure 1 and Figure 2, the 2nd wheel member 12 includes ring portion 17 and blade 18.
Ring portion 17 is in the annular shape for having opening 17a in central portion.Ring portion 17 is relative to main board portion 16 in an axial lateral edge
It is axially-spaced interval and configure.Ring portion 17, which is configured at, leans on the axial other side (16 side of main board portion) than the top plate portion 13a of cup portion 13
At position.
In ring portion 17, the surface 17f of the axial other side is with the axial distance direction between main board portion 16 in axial direction
The gradually smaller mode of radial outside is bent.In the outer peripheral edge portion of ring portion 17, side has been protrusively provided in the circumferential in the axial direction
Continuous rib 17r.The circumferentially spaced interval rib 17r is provided with multiple recess portion 17s.
Blade 18 is arranged with multiple at the circumferentially spaced interval surface 17f of ring portion 17.Each blade 18 and ring portion 17 1
Body it is arranged.Each blade 18 is axially extended from the surface 17f of ring portion 17, and is embedded into the blade tip for being set to main board portion 16
It accommodates in recess portion 16a.In this way, multiple blades 18 are set between ring portion 17 and main board portion 16.Each blade 18 is from radially inner side court
To radial outside and relative to direction of rotation R from the radial direction (radiation direction) centered on central axis J to impeller 10 upstream
It rolls oblique.That is, the direction of rotation R of impeller 10 is the position of the radial outer end 18a of the slave blade 18 in the circumferential direction of central axis J
Towards the direction of the position of the radial inner end 18b of blade 18.
Fig. 5 is the perspective view for showing the motor of present embodiment.Fig. 6 is the motor of present embodiment along central axis
Cross-sectional view.
As shown in Figure 5, Figure 6, motor 20 includes rotor 30, stator 40 and circuit board 50.
As shown in fig. 6, rotor 30 includes axis 31, rotor case 32 and the permanent magnet 33 extended along central axis J.
Axis 31 is upwardly extended in the axis along central axis J.Axis 31 is supported by fixed sleeve 81 in base component 80.Set
Cylinder 81 maintains bearing 34,35 in the inside of sleeve 81 in the tubular extended along the direction central axis J.Axis 31 by bearing 34,
35 are supported to rotate freely around central axis J.Be provided between the bearing 34 in the inner peripheral surface of sleeve 81 and bearing 35 to
Radially inner side protruding portion 81a outstanding.It is provided between protruding portion 81a and bearing 35 by the base of the other side in the axial direction of bearing 35
The helical spring 36 of 80 side of base member pressing.
Rotor case 32 is held in by bushing 37 from the side axis 31 outstanding in the axial direction of sleeve 81.3 one of rotor case
Ground includes plectane portion 32a that is vertical with central axis J and extending to radial outside；And from the outer peripheral edge portion of plectane portion 32a to
The cylindrical portion 32b that the axial other side extends.
Permanent magnet 33 is fixed on the inner peripheral surface of rotor case 32.Permanent magnet 33 is set in the circumferential direction around central axis J
It is equipped with multiple.
Stator 40 is located at the radially inner side of rotor 30, and opposite with the permanent magnet 33 of rotor 30 radially.Stator 40
Including stator core 41, insulating part 42 and coil (not shown).
Stator core 41 is set to the outer peripheral surface of sleeve 81.Stator core 41 passes through is laminated multiple annular shapes in the axial direction
Steel plate and whole installation are at tubular.Stator core 41 has the multiple tooth 41a for separating be arranged at equal intervals in the circumferential.Each tooth
41a extends to radial outside.
Insulating part 42 is arranged in a manner of covering each tooth 41a.Coil (not shown) is wound in tooth 41a across insulating part 42.
Circuit board 50 is electrically connected with the coil (not shown) of stator 40, and supplies electric current to coil.Circuit board 50 is plate-like,
It is configured in the face vertical with central axis J.Circuit board 50 is set to relative to rotor 30 and stator 40 along central axis J's
Axial side.The circuit board 50 is sandwiched between the end of insulating part 42 and the holding canister portion 83 of aftermentioned base component 80.
As shown in Figure 5, Figure 6, in order to from external source side supply electric current and to the electronic component for being installed on circuit board 50
The input and output etc. for carrying out control signal, are connected with wiring 60 in circuit board 50.The more bundles of wiring 60 become band.Wiring 60
One end 60a passes through the real estate 50f towards the axial other side that is engaged in circuit board 50.In addition, the one of wiring 60
End 60a can also be connect with the connector for the real estate 50f for being set to circuit board 50.
As shown in Figure 1, the rotor case 32 of rotor 30 is inserted into the cup portion 13 that impeller 10 is arranged in by such motor 20
Recess portion 13s in and configure.Rotor case 32 passes through the pressure in a manner of abutting plectane portion 32a with the top plate portion 13a of cup portion 13
Enter to be adhered to the internal diameter of cup portion 13 and fixes.The rotor 30 of motor 20 and stator 40 are accommodated in the inside of cup portion 13 as a result,.
Also, circuit board 50 is configured at the radially inner side of curved face part 15.
Base component 80 is configured at the axial other side relative to the main board portion 16 of impeller 10.Base component 80 is fixed on assembling
The shell of such as air purifier of mounting object object 100 of centrifugal fan 1.As shown in Figure 5, Figure 6, base component 80 has in
The base plate 82 of the vertically disposed plate of mandrel line J.Base plate 82 is set to one far from recess portion 13s relative to circuit board 50
Side.Base plate 82 has the mounting surface 82f abutted with mounting object object 100 in the axial other side.
It is grand that the central portion of the face 82g of the side opposite with mounting surface 82f in base plate 82 is provided with side in the axial direction
The holding canister portion 83 of the tubular risen.The end of the sleeve 81 is maintained in the inside insertion for keeping canister portion 83.Also, in pedestal
The outer peripheral edge portion of plate 82 is provided integrally with side protrusion and in the circumferential continuous rib 84 in the axial direction.
The equally spaced multiple positions that separate of base component 80 in the circumferential have boss 85.Boss 85 is from base plate 82
Face 82g is prominent in the axial direction side (50 side of circuit board).As shown in Figure 1, the terminal part 85s of boss 85 is from base plate 82 than following
End 18e is more prominent to the side recess portion 13s, and end 18e leans on 82 side of base plate in the axial direction in the blade 18 of impeller 10.
As shown in Figure 5, Figure 6, boss 85 is arranged in a manner of being overlapped by a part with rib 84.In boss 85, axial one
The terminal part 85s of side (upside) is located at than keeping the terminal part 83a of the axial side in canister portion 83 to lean on the axial other side (downside)
Position at.As a result, boss 85 in the axial direction be connected to keep canister portion 83 terminal part 83a 50 interval of circuit board and
Configuration.
In the circumferential between boss 85 adjacent to each other, the axially spaced-apart between rib 84 and circuit board 50 is than boss 85
Axially spaced-apart between circuit board 50 is big.
It is provided in boss 85 along the internal thread hole 86 axially through base plate 82 and boss 85.By base plate 82
Spiral shell in the state that mounting surface 82f is abutted with mounting object object 100, for base component 80 to be connect with mounting object object 100
Latch 110 (referring to Fig. 3) is screwed into internal thread hole 86.
Fig. 7 is the perspective view for showing the wiring maintaining part for the motor for being set to present embodiment.
As shown in Fig. 5~Fig. 7, it is provided integrally in the peripheral part and base component 80 of base component 80 and keeps wiring 60
Length direction a part wiring maintaining part 90.Wiring maintaining part 90 have the 1st guide portion 91, the 2nd guide portion 92 and
Side guide wall (crisscross displacement restriction poriton) 94.
1st guide portion 91 has from base component 80 along axial and 50 side of the circuit board wall-like outstanding of the other side in the axial direction
Portion 91w.1st guide portion 91 by one end 60a connect with the real estate 50f of circuit board 50 and to radial outside extend wiring 60 with
It bends and guides in the terminal part 91s mode that the other side extends in the axial direction of wall like portions 91w.In the terminal part 91s of wall like portions 91w
The wiring 60 of bending is along the lateral surface 91f towards radial outside in wall like portions 91w in such a way that the other side in the axial direction extends
It is guided.
Relative to the 1st guide portion 91, oriented diameter is being respectively set with the crisscross two sides axially and radially intersected
The side guide wall 94 protruded outward.The lateral surface 91f of 94 to the 1 guide portion 91 of side guide wall is prominent to radial outside.
Side guide wall 94 limits displacement of the wiring 60 of the lateral surface 91f along wall like portions 91w on crisscross.In side guide wall
The end of the axial other side in 94 is provided with further prominent guide wall 94w more outstanding to radial outside than the radial other side.
A guide wall 94A in the side guide wall 94 of the two sides of the base end part and the 1st guide portion 91 of 2nd guide portion 92
Protrusion guide wall 94w engagement, and extend towards another guide wall 94B along with the direction that axially and radially intersects.2nd draws
The lateral surface 91f that portion 92 is led relative to wall like portions 91w is configured in radial outside interval.2nd guide portion 92 will be along wall-like
The wiring 60 of the lateral surface 91f of portion 91w bends in the end of the axial other side of wall like portions 91w and guides to radial outside.2nd
The limitation of guide portion 92 is displaced along the wiring 60 that the lateral surface 91f of the 1st guide portion 91 extends in the axial direction to radial outside.
The terminal part of 2nd guide portion 92 and the spaced apart at gaps 92s of guide wall 94B.It can be by gap 92s in wall-like
Wiring 60 is picked and placed between the outer peripheral surface of portion 91w and the 2nd guide portion 92.
In the centrifugal fan 1 of above structure, when rotating impeller 10 around central axis J by drive motor 20,
Air (fluid) is sent out to radial outside using centrifugal force and is blown.Air from the opening 17a of cup portion 13 and ring portion 17 it
Between gap be inhaled into along axial direction.Outer peripheral surface 13f of the air being inhaled into from the cylindrical portion 13b axially along cup portion 13, curved face part
15 smoothly change the direction of flowing towards radial outside, and are flowed between ring portion 17 and main board portion 16.In ring portion 17 and master
Between plate portion 16, air is sent out to radial outside by multiple blades 18.
The wiring maintaining part 90 of present embodiment include: will from circuit board 50 to radial outside draw wiring 60 along axial direction
1st guide portion 91 of guidance；And guide the wiring 60 axially guided by the 1st guide portion 91 to radial outside, and
The 2nd guide portion 92 that limitation wiring 60 is displaced to radial outside.If 60 quilt of wiring that one end 60a is connect with circuit board 50 as a result,
It is pulled from the another side of wiring 60 to extending direction, then wiring 60 is changed 91 He of the 1st guide portion of the direction of extending direction
The pressing of 2nd guide portion 92.Frictional force is generated between wiring 60 and the 1st guide portion 91, the 2nd guide portion 92 as a result, so as to
Wiring 60 is inhibited to be displaced to extending direction.
Thus, it is possible to more reliably engagement of the inhibiting effect between the wiring 60 and circuit board 50 drawn from motor 20
The power in portion, so as to inhibit wiring 60 to fall off from circuit board 50.
Also, the 1st guide portion 91, the 2nd guide portion 92 are integrally provided to base component 80, and there is no need to use band.
Thus, it is possible to improve the assembling operation of motor 20.
Moreover, because wiring 60 can be inhibited to be displaced to radial outside by the 2nd guide portion 92, therefore motor can be reduced
Gap between 20 and impeller 10 and the miniaturization for realizing centrifugal fan 1.
Motor 20 according to the present embodiment makes terminal part 91s of the wiring 60 from wall like portions 91w by the 1st guide portion 91
Extend towards the lateral surface 91f towards radial outside, thus, it is possible to axially guide wiring 60.It is led in wiring 60 to extending direction
When drawing, wiring 60 is pressed by the terminal part 91s of wall like portions 91w and generates frictional force, and wiring 60 is inhibited to be displaced to extending direction.
Also, the 20, the 2nd guide portion 92 of motor according to the present embodiment is configured relative to the lateral surface 91f of wall like portions 91w
Extend in radial outside, and along with the direction axially and radially intersected.As a result, along the lateral surface 91f of wall like portions 91w in axial direction
The wiring 60 of upper guidance is guided by the 2nd guide portion 92 to radial outside.When wiring 60 is pulled to extending direction, wiring
60 are pressed by the 2nd guide portion 92 and generate frictional force, and wiring 60 is inhibited to be displaced to extending direction.
Also, the 20, the 2nd guide portion 92 of motor according to the present embodiment, which has, draws in the outer peripheral surface of wall like portions 91w with the 2nd
Lead the gap 92s that wiring 60 is picked and placed between portion 92.Thereby, it is possible to relative to the wiring holding being integrally provided with base component 80
Wiring 60 is easily assembled and disassembled in portion 90.
Also, motor 20 according to the present embodiment, can by side guide wall 94 limit wiring 60 with axial direction with
And radially intersect it is crisscross on displacement.
Also, motor 20 according to the present embodiment, side guide wall 94 by the 2nd guide portion 92 than being limited to radial direction
The wiring 60 of the displacement in outside is prominent to radial outside.Thereby, it is possible to protect wiring 60, so as to inhibit other elements and match
Line 60 interferes and generates the broken string etc. of wiring 60.
Also, motor 20 according to the present embodiment, face 82g ratio of the boss 85 with internal thread hole 86 from base plate 82
The end 18e of 82 side of base plate in the blade 18 of impeller 10 is prominent to the side recess portion 13s, and internal thread hole 86 is used for base plate 82
Link with mounting object object 100.It can fully ensure without keeping boss 85 prominent at base plate 82 as a result, and be set to boss
The axial length of 85 internal thread hole 86.Thus, it is possible to the bolt portion that will be used to link base plate 82 and mounting object object 100
Part 110 is reliably fixed in internal thread hole 86, centrifugal fan 1 is firmly fixed at mounting object object 100, and can be real
The miniaturization of existing motor 20.
Also, motor 20 according to the present embodiment, interval between boss 85 and circuit board 50 and be arranged.As a result,
It can ensure not generate electric short circuit between the bolt member 110 in the internal thread hole 86 for being screwed into boss 85 and circuit board 50
Interval.
Also, motor 20 according to the present embodiment, boss 85 adjacent to each other is separated than convex each other in the circumferential
The big interval in interval between platform 85 and circuit board 50 and be arranged.Thereby, it is possible to pass through boss 85 adjacent to each other in the circumferential
Circulation of the air between base plate 82 and circuit board 50 is improved each other.
Also, motor 20 according to the present embodiment, can by the wiring 60 drawn from circuit board 50 with not with impeller 10
The mode of (the 1st wheel member 11) contact is pulled around along the mounting surface 82f of base plate 82.Thereby, it is possible to make mounting surface 82f with
1st wheel member 11 is close in the axial direction.Thus, according to the centrifugal fan 1 with said motor 20, it is able to suppress axial thickness
Degree.Thereby, it is possible in the intracorporal limited space of shell configured in air purifier as mounting object object 100 etc..As a result,
It can be realized the miniaturization of the air purifier with centrifugal fan 1 itself.
More than, one embodiment of the present invention is illustrated, but each structure in embodiment and they
Combination etc. is an example, without departing from the spirit and scope of the invention, be able to carry out the addition of structure, omission, displacement and its
He changes.Also, the present invention is not to be defined using embodiment.
For example, the purposes of motor 20, centrifugal fan 1 shown in above-mentioned embodiment is not particularly limited.
Claims (3)
1. a kind of centrifugal fan characterized by comprising
Fan main body, the fan main body have the multiple blades arranged in the circumferential direction around central axis；And
Motor, at least part of the motor are accommodated in the receiving recess portion for being formed in the central portion of the fan main body,
Rotate the fan main body around the central axis,
The motor has the base component for being fixed on mounting object object far from the side for accommodating recess portion,
The base component includes
Base plate, the base plate have the mounting surface abutted with the mounting object object；And
Multiple boss, the multiple boss are formed in the base plate, have internal thread hole, the internal thread hole supply for institute
The bolt member for stating the connection of mounting object object is screwed into,
The boss is projected into from the face of the side opposite with the mounting surface in the base plate than the fan main body
The position for accommodating recess portion side is more leaned in the end of the base plate side in the blade.
2. centrifugal fan according to claim 1, which is characterized in that
The motor includes:
Rotor, the rotor have the axis extended along the central axis；
Stator, the stator are opposite with the rotor radially；And
Circuit board, the circuit board are electrically connected with the coil of the stator,
The base plate is arranged on the side relative to the circuit board far from the receiving recess portion,
Interval between the boss and the circuit board and be arranged.
3. centrifugal fan according to claim 2, which is characterized in that
The boss is provided with multiple, institute adjacent to each other in the circumferential at the circumferentially spaced interval around the central axis
Boss is stated to be configured to separate the interval bigger than the interval between the boss and the circuit board each other.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018069757A JP2019178659A (en) | 2018-03-30 | 2018-03-30 | Centrifugal fan |
| JP2018-069757 | 2018-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110319035A true CN110319035A (en) | 2019-10-11 |
Family
ID=68112688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910089357.4A Pending CN110319035A (en) | 2018-03-30 | 2019-01-30 | Centrifugal fan |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2019178659A (en) |
| CN (1) | CN110319035A (en) |
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| CN1160295A (en) * | 1995-12-20 | 1997-09-24 | 拉皮德有限公司 | Rotation-preventing member for electrical conenction tag and welded assembly of this member and of any element |
| JP2007154752A (en) * | 2005-12-05 | 2007-06-21 | Nidec Copal Electronics Corp | Blower |
| CN201041177Y (en) * | 2007-03-30 | 2008-03-26 | 重庆宗申技术开发研究有限公司 | Embedded connection piece and structure for mounting seal device using same |
| CN101776089A (en) * | 2009-01-08 | 2010-07-14 | 台达电子工业股份有限公司 | Ventilation device and impeller thereof |
| CN102635741A (en) * | 2011-02-09 | 2012-08-15 | 诺马德国有限责任公司 | Tension clamp |
| JP2016084758A (en) * | 2014-10-27 | 2016-05-19 | ミネベア株式会社 | Centrifugal fan |
| JP2017075562A (en) * | 2015-10-14 | 2017-04-20 | ミネベアミツミ株式会社 | Centrifugal fan |
| US20170114791A1 (en) * | 2015-10-23 | 2017-04-27 | Minebea Co., Ltd. | Centrifugal fan |
| CN107074141A (en) * | 2014-10-14 | 2017-08-18 | 安道拓卢森堡控股有限公司 | Attachment means, seat, the method for producing attachment means and the method for connecting two parts |
-
2018
- 2018-03-30 JP JP2018069757A patent/JP2019178659A/en active Pending
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2019
- 2019-01-30 CN CN201910089357.4A patent/CN110319035A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1160295A (en) * | 1995-12-20 | 1997-09-24 | 拉皮德有限公司 | Rotation-preventing member for electrical conenction tag and welded assembly of this member and of any element |
| JP2007154752A (en) * | 2005-12-05 | 2007-06-21 | Nidec Copal Electronics Corp | Blower |
| CN201041177Y (en) * | 2007-03-30 | 2008-03-26 | 重庆宗申技术开发研究有限公司 | Embedded connection piece and structure for mounting seal device using same |
| CN101776089A (en) * | 2009-01-08 | 2010-07-14 | 台达电子工业股份有限公司 | Ventilation device and impeller thereof |
| CN102635741A (en) * | 2011-02-09 | 2012-08-15 | 诺马德国有限责任公司 | Tension clamp |
| CN107074141A (en) * | 2014-10-14 | 2017-08-18 | 安道拓卢森堡控股有限公司 | Attachment means, seat, the method for producing attachment means and the method for connecting two parts |
| JP2016084758A (en) * | 2014-10-27 | 2016-05-19 | ミネベア株式会社 | Centrifugal fan |
| JP2017075562A (en) * | 2015-10-14 | 2017-04-20 | ミネベアミツミ株式会社 | Centrifugal fan |
| US20170114791A1 (en) * | 2015-10-23 | 2017-04-27 | Minebea Co., Ltd. | Centrifugal fan |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019178659A (en) | 2019-10-17 |
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Application publication date: 20191011 |