CN104953748A - Motor and fan comprising same - Google Patents
Motor and fan comprising same Download PDFInfo
- Publication number
- CN104953748A CN104953748A CN201410123875.0A CN201410123875A CN104953748A CN 104953748 A CN104953748 A CN 104953748A CN 201410123875 A CN201410123875 A CN 201410123875A CN 104953748 A CN104953748 A CN 104953748A
- Authority
- CN
- China
- Prior art keywords
- circuit board
- motor according
- motor
- inner circumferential
- described circuit
- 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
Abstract
The invention provides a motor and a fain comprising the same. The motor is provided with a stationary part; and a rotary part which is provided with a central axis and is supported to rotate around the central axis relative to the stationary part. The stationary part is provided with an armature which is arranged to be coaxial with the central axis; a circuit board which is disposed below the armature; and a base part which is used for supporting the armature and the circuit board. The base part is provided with a bearing retainer, a central tower part, and a wall part. The central tower part supports the bearing retainer. The wall part surrounds the circuit board from a radial outer side, and there is a radial gap between the wall part and the circuit board. The center of the circuit board is provided with a through hole for the passing of the bearing retainer. A filling material is placed at the upper and lower sides of the circuit board. The circuit board is also provided with at least one internal peripheral gap close to the through hole. The radial gap is communicated with the internal peripheral gap through an axial space between the lower surface of the circuit board and the upper surface of the base part.
Description
Technical field
The present invention relates to a kind of motor and comprise its fan.
Background technology
Along with the development of modern technologies, motor has been applied in various environment.In order to overcome the impact of adverse circumstances, as everyone knows, by protecting the coil of motor or circuit board thus realize the dustproof and waterproof of motor.Such as, Japanese documentation JP3432380B2 discloses a kind of water proof type fan motor, and its injection moulding by silicone jelly protection stator realizes waterproof.As shown in Figure 1, in die cavity, inject silicone jelly 25 from the inlet 30 of silicone rubber, play waterproof effect by covering board 4.But when injecting filler, owing to not have the exhaust outlet that is exhausted of setting, so the poor fluidity of filler and flowing time is long, and the possibility that the air that the upper and lower sides being accumulated in circuit board 4 is not discharged becomes bubble is very large.If produce bubble when filling, the problem causing the water resistance of motor to reduce will be there is.
Summary of the invention
Object of the present invention is just to provide a kind of motor with improvement water resistance.
This object is realized by following a kind of motor, and this motor has: stationary part, and rotating part, have central axis, described rotating part is supported for around described central axis rotatable relative to described stationary part, and described stationary part has: armature, configures with described central axis coaxial, circuit board, is configured in the below of described armature, and base portion, support described armature and described circuit board, described base portion has retainer, tower portion of central authorities and wall portion, described central tower portion supports described retainer, described wall portion from radial outside surround described circuit board and and there is radial clearance between described circuit board, the central authorities of described circuit board are provided with for the through through hole of described retainer, filler is filled in the upper and lower sides of described circuit board, described circuit board is also provided with at least one the inner circumferential breach near described through hole, described radial clearance is communicated with described inner circumferential breach by the axial space between the lower surface of described circuit board and the upper surface of described base portion.
Because arrange at least one inner circumferential breach in the circuit board as exhaust outlet, so in filler stowing operation, the possibility that bubble occurs reduces, thus the electronic unit of protective circuit plate better, the water resistance of corresponding raising motor thus.
On the other hand, provide a kind of fan, it has above-mentioned motor, also has blade, and described blade can rotate with the rotating part of described motor.
Owing to having the motor strengthening water proofing property, therefore the water resistance of fan is also improved.
Accompanying drawing explanation
Above and the following description that those of ordinary skill in the art carries out by way of example by referring to accompanying drawing more clearly can understand above-mentioned and other advantage of the present invention, in the accompanying drawings:
Fig. 1 shows the cutaway view of the fan motor of prior art.
Fig. 2 shows the partial sectional view of fan of the present invention.
Fig. 3 shows the vertical view of the circuit board of the motor of fan of the present invention.
Embodiment
Hereafter specifically describe the embodiment of fan of the present invention with reference to the accompanying drawings.Accompanying drawing is not necessarily drawn in proportion.Should be appreciated that the following examples and accompanying drawing are only illustrative, should not be regarded as limiting the scope of the invention.Feature in embodiment can combine as required.
In this article, term " axis " represents the direction of the central axis OO ' of the rotating part of motor, " radial direction " represents the radial direction centered by the central axis OO ' of rotating part, " on " side residing for expression " axis " upper rotor part retainer, the side that D score represents " axis " above residing for circuit board, away from the direction of central axis OO ' in " outward " expression " radial direction ", the upper direction near central axis OO ' of " interior " expression " radial direction ".
Fig. 2 shows the partial sectional view of an embodiment of fan of the present invention.Fan 1 comprises motor 2 and blade 3.Motor 2 comprises stationary part and rotating part, and described rotating part has central axis OO ', and described rotating part is supported for around central axis OO ' rotatable relative to described stationary part.Described stationary part has armature 5, is configured in the circuit board 6 of the below of armature 5 and supports the base portion 7 of armature 5 and circuit board 6.Armature 5 is configured with central axis OO ' coaxial, and comprises iron core 8 and be wound around the coil 10 of iron core 8 by insulating element 9.Circuit board 6 being furnished with electronic unit (not shown), for being connected with coil 10 and power lead (not shown), thus realizing the function controlling motor operation.Base portion 7 has retainer 11, central tower portion 12 and wall portion 13.Central authorities' tower portion 12 spring bearing retainer 11, wall portion 13 surrounds circuit board 6 from radial outside.
Described rotating part has axle 14, rotor retainer 15 and is attached to the rotor magnet 16 of inner surface of rotor retainer 15.Axle 14 is coaxial with central axis OO ', is rotatably supported by the bearing 17 be arranged in retainer 11.Rotor retainer 15 is fixedly connected to axle 14, can rotate together with axle 14.Rotor magnet 16 and armature 5 diametrically contraposition.In addition, blade 3 can be attached to the outer surface of rotor retainer 15, thus blade 3 can rotate with the described rotating part of motor 2.Motor 2 also comprises filler 18, and it is filled in the upper and lower sides of circuit board 6.Preferably, filler 18 can be one or more in epoxy resin, silicone jelly and polyurethane resin.These materials have good insulating properties and water proofing property.
Fig. 3 shows the vertical view of the circuit board of the motor of fan of the present invention.Circuit board 6 is represented by solid line, and dotted line represents the inner peripheral surface of the wall portion 13 of base portion 7.As shown in the figure, between circuit board 6 and wall portion 13, there is radial clearance 19, be convenient to the filling of filler 18.The central authorities of circuit board 6 are provided with through hole 20, and the retainer 11 for base portion 7 runs through.Preferably, the central tower portion 12 of base portion 7 can have tapered portion, and circuit board 6 is fixed on described tapered portion by described tapered portion is inserted through hole 20.Achieve the fixing of circuit board 6 like this.Circuit board 6 is also provided with at least one the inner circumferential breach 21 near through hole 20, and radial clearance 19 is communicated with inner circumferential breach 21 by the axial space between the lower surface of circuit board 6 and the upper surface of base portion 7.Because arrange at least one inner circumferential breach 21 as exhaust outlet in circuit board 6, so in filler 18 stowing operation, the possibility that bubble occurs reduces, thus the electronic unit of protective circuit plate better, the water resistance of corresponding raising motor thus.As shown in the figure, inner circumferential breach 21 is communicated with through hole 20 (being so more conducive to the generation preventing bubble in stowing operation), but inventor contemplating inner circumferential breach 21 can not be communicated with through hole 20, is centered around through hole 20 around.
Circuit board 6 can also be provided with outer periphery notch 22, and outer periphery notch 22 is arranged on the neighboring of circuit board 6.Expand the Injection Space of packing material 18 like this, thus improve the mobility of filler 18.In embodiment shown in Fig. 3, outer periphery notch 22 is four, and the shape of circuit board 6 is rounded square.It will be understood by those skilled in the art that the number of outer periphery notch 22 can be selected as required.In a preferred embodiment, circuit board 6 can be polygon.The size of the filling inlet of filler can be increased like this, increase the mobility of filler.In other preferred embodiments, each inner circumferential breach 21 can be arranged along same radial direction accordingly with outer periphery notch 22.The mobility of filler can be increased like this in stowing operation.In other preferred embodiments, at least one in outer periphery notch 22 can be the export mouth of the wire that one end is connected with circuit board 6.Be convenient to the extraction of wire like this.
Returning see Fig. 2, base portion 7 can also be provided with extend from the inner circumferential side of wall portion 13 to radially inner side, for the stage portion 23 of support circuit plate 6, circuit board 6 is fixed to stage portion 23, such as, by screw 24.Like this can realizing circuit plate 6 fixing.Stage portion 23 can be multiple.Stage portion 23 is arranged to be avoided hindering the connection between radial clearance 19 and inner circumferential breach 21, thus is convenient to the injection of filler.
Although describe an application of motor of the present invention herein for fan, it should be understood that motor of the present invention also can be applied to other application.
The present invention also tool has the following advantages.
In a preferred embodiment, described central tower portion has tapered portion, and described circuit board is fixed on described tapered portion by described tapered portion is inserted described through hole.Achieve the fixing of described circuit board like this.
In a preferred embodiment, described base portion be provided with extend from the inner circumferential side of described wall portion to radially inner side, for supporting the stage portion of described circuit board, described circuit board is fixed to described stage portion.Achieve the fixing of described circuit board like this.
In a preferred embodiment, described inner circumferential breach is communicated with described through hole.(sample is more conducive to the generation preventing bubble in stowing operation.
In a preferred embodiment, described circuit board is also provided with outer periphery notch, and described outer periphery notch is arranged on the neighboring of described circuit board.Expand the Injection Space of packing material like this, thus improve the mobility of filler
In a preferred embodiment, each described inner circumferential breach and described outer periphery notch are arranged along same radial direction accordingly.The mobility of filler can be increased like this in stowing operation.
In a preferred embodiment, at least one in described outer periphery notch is the export mouth of the wire that one end is connected with described circuit board.Be convenient to the extraction of wire like this.
In a preferred embodiment, described circuit board is polygon.The size of the filling inlet of filler can be increased like this, increase the mobility of filler.
In a preferred embodiment, described filler is one or more in epoxy resin, silicone jelly and polyurethane resin.These materials have good insulating properties and water proofing property.
Claims (10)
1. a motor, it has:
Stationary part; And
Rotating part, has central axis, and described rotating part is supported for around described central axis rotatable relative to described stationary part,
Described stationary part has:
Armature, configures with described central axis coaxial;
Circuit board, is configured in the below of described armature; And
Base portion, support described armature and described circuit board, described base portion has retainer, central tower portion and wall portion, and described central tower portion supports described retainer, described wall portion is surrounded described circuit board from radial outside and and be there is radial clearance between described circuit board
The central authorities of described circuit board are provided with the through hole run through for described retainer, and filler is filled in the upper and lower sides of described circuit board,
It is characterized in that,
Described circuit board is also provided with at least one the inner circumferential breach near described through hole, and described radial clearance is communicated with described inner circumferential breach by the axial space between the lower surface of described circuit board and the upper surface of described base portion.
2. motor according to claim 1, is characterized in that,
Described central tower portion has tapered portion, and described circuit board is fixed on described tapered portion by described tapered portion is inserted described through hole.
3. motor according to claim 1, is characterized in that,
Described base portion be provided with extend from the inner circumferential side of described wall portion to radially inner side, for supporting the stage portion of described circuit board, described circuit board is fixed to described stage portion.
4. motor according to claim 2, is characterized in that,
Described inner circumferential breach is communicated with described through hole.
5. motor according to claim 3, is characterized in that,
Described circuit board is also provided with outer periphery notch, and described outer periphery notch is arranged on the neighboring of described circuit board.
6. motor according to claim 5, is characterized in that,
Each described inner circumferential breach and described outer periphery notch are arranged along same radial direction accordingly.
7. motor according to claim 5, is characterized in that,
At least one in described outer periphery notch is the export mouth of the wire that one end is connected with described circuit board.
8. the motor according to claim, is characterized in that,
Described circuit board is polygon.
9. the motor according to any one of claim 1-8, is characterized in that,
Described filler is one or more in epoxy resin, silicone jelly and polyurethane resin.
10. a fan, it has the motor according to any one of claim 1-9, also has blade, and described blade can rotate with the rotating part of described motor.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410123875.0A CN104953748A (en) | 2014-03-28 | 2014-03-28 | Motor and fan comprising same |
| JP2015018065A JP6589283B2 (en) | 2014-03-28 | 2015-02-02 | Motor and fan equipped with motor |
| US14/642,959 US20150275904A1 (en) | 2014-03-28 | 2015-03-10 | Motor and fan including the motor |
| US15/810,301 US10508653B2 (en) | 2014-03-28 | 2017-11-13 | Motor and fan including the motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410123875.0A CN104953748A (en) | 2014-03-28 | 2014-03-28 | Motor and fan comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104953748A true CN104953748A (en) | 2015-09-30 |
Family
ID=54168191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410123875.0A Pending CN104953748A (en) | 2014-03-28 | 2014-03-28 | Motor and fan comprising same |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6589283B2 (en) |
| CN (1) | CN104953748A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730211A (en) * | 2017-04-17 | 2018-11-02 | 日本电产株式会社 | The manufacturing method of air-supply arrangement, blowing unit and air-supply arrangement |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08275434A (en) * | 1995-03-31 | 1996-10-18 | Nippon Densan Corp | Spindle motor |
| CN102832734A (en) * | 2011-06-17 | 2012-12-19 | 日本电产株式会社 | Motor |
| CN203180666U (en) * | 2012-03-31 | 2013-09-04 | 日本电产株式会社 | Stator portion of molding motor and the molding motor using the stator portion |
| CN203827100U (en) * | 2014-03-28 | 2014-09-10 | 日本电产株式会社 | Motor and fan employing same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4870931B2 (en) * | 2005-02-28 | 2012-02-08 | 株式会社メルコテクノレックス | Environmental resistant axial fan |
| WO2007139129A1 (en) * | 2006-06-01 | 2007-12-06 | Panasonic Corporation | Brushless motor for washing machine and washing machine having the brushless motor mounted therein |
-
2014
- 2014-03-28 CN CN201410123875.0A patent/CN104953748A/en active Pending
-
2015
- 2015-02-02 JP JP2015018065A patent/JP6589283B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08275434A (en) * | 1995-03-31 | 1996-10-18 | Nippon Densan Corp | Spindle motor |
| CN102832734A (en) * | 2011-06-17 | 2012-12-19 | 日本电产株式会社 | Motor |
| CN203180666U (en) * | 2012-03-31 | 2013-09-04 | 日本电产株式会社 | Stator portion of molding motor and the molding motor using the stator portion |
| CN203827100U (en) * | 2014-03-28 | 2014-09-10 | 日本电产株式会社 | Motor and fan employing same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730211A (en) * | 2017-04-17 | 2018-11-02 | 日本电产株式会社 | The manufacturing method of air-supply arrangement, blowing unit and air-supply arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015192596A (en) | 2015-11-02 |
| JP6589283B2 (en) | 2019-10-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8946948B2 (en) | Motor with stator cover formed by overlapping two members | |
| CN101714799B (en) | Molded motor | |
| CN204030755U (en) | A kind of rotor and apply its plastic packaging motor | |
| JP6973559B2 (en) | motor | |
| WO2006078143A3 (en) | Motor | |
| EP2793370B1 (en) | Fan motor | |
| JP2017184525A (en) | Stator unit, motor and parallel fan | |
| CN207150272U (en) | Stator unit, motor and fan motor | |
| CN105990976A (en) | External rotor motor | |
| CN103166411A (en) | Brush motor and fan with the same | |
| US5889343A (en) | Electromechanical machine having improved lead wire sealing arrangement | |
| CN103438019A (en) | Fan stator waterproof structure, and manufacturing method, auxiliary cover and epoxy resin AB adhesive thereof | |
| CN203827100U (en) | Motor and fan employing same | |
| JP2017221021A (en) | Stator unit, motor and blower | |
| CN205017175U (en) | Machine in plastic envelope motor, plastic envelope stator and air conditioning | |
| CN104953748A (en) | Motor and fan comprising same | |
| US20180278116A1 (en) | Stator unit, motor, and fan motor | |
| CN105305729A (en) | Plastic package motor, plastic package stator and air-conditioner indoor unit | |
| CN203645413U (en) | Motor and air-conditioning device | |
| JP2022515772A (en) | Brushless DC motor | |
| CN203416065U (en) | Heat-radiating motor rotor | |
| KR102648545B1 (en) | Fan motor and vehicle having the same | |
| KR102227294B1 (en) | Motor | |
| US20150275904A1 (en) | Motor and fan including the motor | |
| CN103516089A (en) | Plastic package motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150930 |