CN108933505A - Motor - Google Patents
Motor Download PDFInfo
- Publication number
- CN108933505A CN108933505A CN201810499041.8A CN201810499041A CN108933505A CN 108933505 A CN108933505 A CN 108933505A CN 201810499041 A CN201810499041 A CN 201810499041A CN 108933505 A CN108933505 A CN 108933505A
- Authority
- CN
- China
- Prior art keywords
- lid
- resin
- circuit board
- electronic component
- opening portion
- 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
- 239000011347 resin Substances 0.000 claims description 70
- 229920005989 resin Polymers 0.000 claims description 70
- 238000001514 detection method Methods 0.000 claims description 64
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Motor of the invention has：Stationary part；And rotating part, it is supported to rotate around the central axis vertically extended via bearing portion relative to stationary part.Stationary part has：Stator；Retainer portion, keeps stator；And lid, it is fixed in retainer portion.Retainer portion has the recess portion in the retainer opening portion opening for being formed at least axial side and from retainer opening portion along axial depression.Lid covering retainer opening portion, at least part of rotating part are located at the inside of recess portion, and stationary part also has at least part by the circuit board of lid covering, and at least part of circuit board is located at the inside of recess portion.
Description
Technical field
The present invention relates to motors.
Background technique
In the past, be desirable to place and washing machine high a possibility that communication base station etc. is externally exposed in gas or
Meet the motor of high waterproof and dustproof benchmark used in the household appliances such as refrigerator.For example, in International Publication No. 2007/139129
The waterproof and dustproof countermeasure of existing motor is recorded in number bulletin.
In the construction of No. 2007/139129 bulletin of International Publication No., detect the position of rotor Magnetic Sensor and according to
Information from Magnetic Sensor and be accommodated in shell from resin to the driving circuit of stator winding electrifying in, by damp proof tree
Rouge sealing.Therefore, it is necessary to which the shell is in addition arranged, cost is likely to increase.Also, it also needs in the inside of motor for configuring
The space of shell.As a result, it is possible to the motor can not be set in the limited place in space.
Summary of the invention
The object of the present invention is to provide can carry driving circuit etc. without in addition setting shell, can make motor
Miniaturization and cost effective construction.
The first invention of the illustration of the application is motor, is had：Stationary part；And rotating part, relative to described quiet
Stop is supported to rotate around the central axis vertically extended via bearing portion, and the stationary part has：Stator；It protects
Frame portion is held, the stator is kept；And lid, it is fixed in the retainer portion, the retainer portion has
It is formed in the retainer opening portion opening of at least axial side and the recess portion from the retainer opening portion along axial depression,
The lid covers the retainer opening portion, and at least part of the rotating part is located at the inside of the recess portion, described static
Portion also has at least part by the circuit board of the lid covering, and at least part of the circuit board is located at the interior of the recess portion
Side.
According to the first invention of the illustration of the application, at least part of circuit board is covered by lid.Also, circuit board is extremely
Few a part is located at the inside of the recess portion in the retainer portion kept to stator.As a result, it is not necessary that in addition setting shell can
Circuit board etc. is carried, motor miniaturization and cost effective can be made.
Detailed description of the invention
Fig. 1 is the longitudinal section view of the motor of first embodiment.
Fig. 2 is the partial, longitudinal cross-sectional of the motor of first embodiment.
Fig. 3 is the partial, longitudinal cross-sectional of the motor of variation.
Fig. 4 is the partial, longitudinal cross-sectional of the motor of variation.
Fig. 5 is the partial, longitudinal cross-sectional of the motor of variation.
Fig. 6 is the partial, longitudinal cross-sectional of the motor of variation.
Specific embodiment
It is illustrated hereinafter, Duiing embodiment illustrated of the invention while referring to attached drawing.In addition, in the application
In, the direction of the centerline axis parallel with motor is referred to as " axial direction ", the direction of the central axis upright with motor is referred to as " diameter
To ", " circumferential direction " will be referred to as along the direction of the circular arc centered on the central axis of motor.Also, it in this application, will be axial
It is set as up and down direction, board side is set as relative to stator and the shape and positional relationship of each section are illustrated.But
It is direction when manufacturing and using motor of the invention not by the definition restriction of the up and down direction.
1. first embodiment > of <
The construction > of < 1-1. motor
Fig. 1 is the longitudinal section view of motor 1.Fig. 2 is the partial, longitudinal cross-sectional of motor 1.The motor 1 is equipped with magnet 35
The moulding motor of the radially inner side that rotor 32 configured in the aftermentioned stator 21 covered by resin, so-called inner-rotor type.Horse
Up to 1 such as household appliances air-conditioning.But motor of the invention can be used for the purposes other than household appliances.For example,
Motor of the invention can also be equipped on the transporting equipments such as automobile, railway, OA equipment, Medical Devices, tool, industrial large size
Equipment etc. is to generate various driving forces.Also, motor of the invention may not be moulding motor, but for example stator is by steel plate
The motor of covering.
As depicted in figs. 1 and 2, motor 1 has stationary part 2 and rotating part 3.Stationary part 2 is right radially with rotating part 3
It sets.Stationary part 2 is fixed in the framework as the equipment of driven object.Rotating part 3 is relative to stationary part 2 via aftermentioned bearing
Portion 25 and be supported to rotate around the central axis 9 that vertically extends.
The stationary part 2 of present embodiment has stator 21, retainer portion 22, lid 23, circuit board 24, bearing portion 25, one
Or multiple electronic components 26, leads component 27, one or more detect lead 281 and one or more driving lead 282.Rotation
Transfer part 3 has axis 31 and the rotor 32 equipped with magnet 35.
Stator 21 be according to from external power supply (illustration omitted) via driving current provided by aftermentioned drive circuit board
And generate the armature of magnetic flux.Stator 21 annularly surrounds around the central axis 9 extended up and down.Stator 21 has stator iron
Core 211, insulating part 212 and multiple coils 213.Stator core 211 has circular core-back 41 and from core-back
41 towards radially inner side multiple teeth 42 outstanding.Core-back 41 is substantially coaxially configured with central axis 9.Multiple teeth 42 are along week
To equally spaced arranging.Stator core 211 is for example able to use stacked steel plate.
Insulating part 212 is mounted on stator core 211.The material of insulating part 212 is able to use the resin as insulator.
At least part of the covering stator core 211 of insulating part 212.Specifically, insulating part 212 covers the axial both ends of the surface of tooth 42
With circumferential two sides.Coil 213 by across insulating part 212 and the conducting wire (illustration omitted) around tooth 42 is constituted.That is,
Insulating part 212 is clipped between tooth 42 and coil 213.
Retainer portion 22 is the component of the resin kept to stator 21 and aftermentioned bearing portions 252.Retainer
Portion 22 has wall portion 221 and base plate 222.Wall portion 221 extends along axial in substantially cylindric.Also, in the radial direction of wall portion 221
Inside is configured with aftermentioned rotor 32.In addition, in the present embodiment, stator 21, aftermentioned driving leads component 272 are at least
A part of a part of and aftermentioned driving lead 282 is embedded in the retainer resin as the resin for forming retainer portion 22
It is capped in 51.Thereby, it is possible to prevent water droplet to be attached to stator 21.Further, it is possible to make the winding and portion of terminal electricity of stator 21
Insulation.But a part of the stator 21 including the end face of the radially inner side comprising tooth 42 can also be exposed from wall portion 221.
Base plate 222 is from the lower end of wall portion 221 towards the plate-like extension of radially inner side.Base plate 222 is located at than stator 21
With rotor 32 by the position of axial downside.Also, the radially inner side of base plate 222 is provided with metal lower bearing incorporating section
Part 223.Lower bearing storage member 223 extends from the inner end of base plate 222, covers at least one of aftermentioned bearing portions 252
Point.Bearing portions 252 are configured at the inside of lower bearing storage member 223.A part in the axial direction of axis 31 is configured at lower bearing
The radially inner side of storage member 223.
Also, retainer portion 22 also have be formed at least axial side retainer opening portion 224 opening and
From retainer opening portion 224 along the recess portion 220 of axial depression.In addition, in the present embodiment, recess portion 220 is being formed in holding
The retainer opening portion 224 of the upper end side in frame portion 22 is open, and from retainer opening portion 224, downside is recessed in the axial direction.Comprising aftermentioned
Rotor 32 including at least part of rotating part 3 and at least part of aftermentioned detection circuit board 241 be located at recess portion 220
Inside.Thereby, it is possible to minimize motor 1 integrally in the axial direction.
Lid 23 is located at the top in retainer portion 22, covers above-mentioned retainer opening portion 224 and is fixed on retainer portion
At least part of 22 upper end.Aftermentioned rotor 32 is accommodated in the inside for the framework being made of retainer portion 22 and lid 23.
Lid 23 has upper plate portion 231, press-in portion 232 and positioning region 233.
Upper plate portion 231 than stator 21, at least part in retainer portion 22 and rotor 32 by axis position to the upper side
It is generally perpendicularly extended with central axis 9.Aftermentioned detection circuit board 241, aftermentioned one are configured in the inside of upper plate portion 231
At least part of a or multiple electronic components 26 and aftermentioned detection leads component 271.
Press-in portion 232 is the fixed part that at least part of lid 23 is fixed on to retainer portion 22.In the present embodiment,
In press-in portion 232, the outer peripheral surface of the lower end of lid 23 is pressed into retainer opening portion 224, to be fixed.As a result, can
It is enough that lid 23 is easily fixed to retainer portion 22.Alternatively, it is also possible to replace indentation or other than indentation, also by viscous
Connect, weld or screw fastening etc. other methods and lid 23 is fixed on retainer portion 22.
Positioning region 233 is the position extended to the radial outside of press-in portion 232.As described above, in the lower end of lid 23
When outer peripheral surface is pressed into retainer opening portion 224, the lower surface of positioning region 233 connects in the axial direction with the upper surface in retainer portion 22
Touching.Thereby, it is possible to be precisely directed to lid 23 relative to the axial position in retainer portion 22.
Upper bearing (metal) storage member 234 is fixed on lid 23.Upper bearing (metal) storage member 234 is located at upside and the radial direction of axis 31
Outside is fixed on the lower surface and inner peripheral surface of upper plate portion 231.Upper bearing (metal) storage member 234 is configured on aftermentioned in inside
Bearing portion 251 covers a part of upper bearing portion 251.Also, at least part of upper bearing (metal) storage member 234, which is located at, to be kept
The inside of the recess portion 220 in frame portion 22.Thereby, it is possible to minimize motor 1 integrally in the axial direction.
In addition, the lid 23 of present embodiment is resin system.Hereinafter, the resin for forming lid 23 is set as " lid resin 52 ".
The lid 23 of resin is able to use mold and is easily molded.Also, in the case where lid 23 uses metal situation, due to using
Inverter come make motor 1 drive caused by voltage change, aftermentioned bearing portion 25 generate voltage.It is likely due to the voltage
And cause to generate insulation breakdown, discharge, thus bearing wear (galvano-cautery).But be made of resin due to lid 23, it can
Prevent the galvano-cautery of bearing portion 25.
As the example of circuit board 24, it is provided with detection circuit board 241.At least part of detection circuit board 241 is covered
23 coverings.Thereby, it is possible to prevent water to be attached to detection circuit board 241.Also, detection circuit board 241 is stored without in addition setting
Shell, therefore reduce cost.Moreover, because without the space for the shell for configuring storage detection circuit board 241, therefore can
Make 1 integral miniaturization of motor.Detection circuit board 241 is described in detail below.
In addition, the face in 21 side of at least stator of detection circuit board 241 is (detection circuit board 241, close in the axial direction fixed
Son 21 face) on equipped with one or more electronic components 26.At least part of electronic component 26 is covered by lid 23.As a result,
It can be improved the waterproofness and dust tightness of electronic component 26.In addition, in the present embodiment, as one of electronic component 26, making
With the position-detection sensor of the position for detecting rotating part 3.Electronic component 26 is described in detail below.Also,
The side opposite with the face of 21 side of stator in detection circuit board 241 is (in the axial direction, than detection circuit board 241 from stator 21
Remote position) it is configured with aftermentioned detection leads component 271.
In addition, differently with detection circuit board 241, being provided with drive circuit board (not shown).Extend from drive circuit board
Aftermentioned driving lead 282 be electrically connected with the coil 213 of stator 21.Also, drive circuit board also (saves sketch map with external power supply
Show) connection.It (is omitted from external power supply via the electric current that drive circuit board provides via aftermentioned driving lead 282 and terminal pins
Diagram) it is flowed to coil 213.
Bearing portion 25 has upper bearing portion 251 and bearing portions 252.Upper bearing portion 251 is in the position more against the top than rotor 32
Setting the bearing of axis 31 is that can rotate.Bearing portions 252 can rotate the bearing of axis 31 than the position of rotor 32 on the lower.
The upper bearing portion 251 and bearing portions 252 of present embodiment have used the ball bearing for rotating outer ring and inner ring by sphere.
The outer ring of upper bearing portion 251 is fixed on upper bearing (metal) storage member 234.The outer ring of bearing portions 252 is fixed on lower bearing storage
On component 223.Also, upper bearing portion 251 and the respective inner ring of bearing portions 252 are fixed on axis 31.But upper bearing portion
251 and bearing portions 252 also can replace ball bearing and use the bearings of the other modes such as sliding bearing or fluid bearing.
Leads component 27 has detection leads component 271 and driving leads component 272.Below to detection leads component 271
It is described in detail.Drive leads component 272 together at least part of stator 21 and aftermentioned driving lead 282 to guarantor
Hold when frame resin 51 is injection moulded insert-molding simultaneously.Retainer resin 51 hardening after, driving leads component 272 so that
The mode of a part in the circumferential direction on the top that few a part is embedded in retainer portion 22 is kept.Drive leads component 272
The position of radially inner side is located at the inside in retainer portion 22, and the position of radial outside is exposed to the outside in retainer portion 22.Also,
Driving leads component 272 is generally perpendicularly configured with central axis 9.Moreover, there is driving leads component 272 perforation driving to draw
The driving lead division through hole 280 of component 272.Drive the orientation in the opening of lead division through hole 280 in the attached of stator 21
Closely.It also, include at least one of the driving leads component 272 including the another party driven in the opening of lead division through hole 280
Part is exposed to the outside in retainer portion 22.One or more driving lead 282 via terminal pins (illustration omitted) and and stator
21 coil 213 is electrically connected.Moreover, one or more driving lead 282 passes through driving lead division through hole 280 and is led to guarantor
Hold the outside in frame portion 22.
As described above, stationary part 2 also has detection lead 281 and driving lead 282.Detect lead 281 and detection circuit
Plate 241 is electrically connected.Also, it detects lead 281 and the external equipment (illustration omitted) of motor 1 etc. to connect
Axis 31 is the columnar component for penetrating through rotor 32 and axially extending.Axis 31 is by upper bearing portion 251 and bearing portions
252 are supported and are pivoted about with central axis 9.The lower end of axis 31 protrudes downwards than retainer portion 22.It can
In the fan of the lower end of axis 31 installation such as idle call.In addition, the upper end of axis 31 can also protrude upwards than lid 23.
Rotor 32 is the cricoid component for being fixed on axis 31 and rotating together with axis 31.Rotor 32 is configured at stator 21
Radially inner side.Rotor 32 radial outside position equipped with magnet 35.The tooth 42 of the outer peripheral surface and stator 21 of magnet 35
The end face of radially inner side is opposed radially across small gap.Also, at least part of magnet 35 with as being used for
The above-mentioned electronic component 26 for detecting the position-detection sensor of the position of rotating part 3 is opposed in the axial direction.
As described above, passing through driving lead 282 and terminal pins (illustration omitted) from external power supply when motor 1 drives
Driving current is provided to coil 213.Magnetic flux is generated on multiple teeth 42 of stator core 211 as a result,.Moreover, passing through tooth 42
Magnetic flux role with being equipped between the magnet 35 of rotor 32, generates circumferential torque.As a result, rotating part 3
It is pivoted about with central axis 9.
In addition, (being saved via electronic component 26 and detection lead 281 in the external equipment of motor 1 when motor 1 drives
Sketch map shows) in detect the rotation of rotating part 3.Also, according to the testing result, driving current is provided to coil 213, to rotation
The rotation in portion 3 is controlled.In the present embodiment, electronic component 26 is configured close to magnet 35.As a result, by electronic component 26
The magnetic of magnet 35 is precisely detected, to accurately detect the position of rotating part 3.
< 1-2. detection circuit board 241, electronic component 26 and the construction and configuration > that detect leads component 271
Next, to detection circuit board 241, electronic component 26 and the construction and the configuration progress that detect leads component 271
More detailed description.
Lid 23 is to be used as insert component by will test circuit board 241, electronic component 26 and detection leads component 27
The injection moulding of resin and formed.In injection moulding, the resin inflow of flow regime carries out molding mold to lid 23
It is internal.Also, detection circuit board 241, electronic component 26 and detection leads component 271 are scheduled in mold to be supported in
The state of position is kept, while flowing into the resin for having flow regime.Specifically, detection circuit board 241 or detection lead division
Part 271 is arranged on the bearing such as pin on mold, while flowing into the resin for having flow regime.Here, wanting to reduce covering inspection
In the case where the thickness of the resin of slowdown monitoring circuit plate 241 and electronic component 26, when resin is flowed into mold, under electronic component 26
Interval between surface and the upper surface of mold is narrow, and it is therefore possible to generate the resin layer of thin-walled.As a result, the thin-walled
Resin layer is easy to be stripped, and the resin layer after removing is possible to be blocked in the inside of motor 1.Also, due in electronic component 26
Near resin be difficult to flow, therefore electronic component 26 be possible to unexpected shape and part expose.In contrast, pass through
Make the following table face contact of electronic component 26 using pin being arranged on mold etc. or is matched with the interval of the immobilising degree of resin
It sets, so that electronic component 26 is not covered by lid 23, so as to inhibit the resin layer of the thin-walled to generate, after being able to suppress removing
Resin layer be blocked in the inside of motor 1.Further, it is possible to inhibit electronic component 26 with unexpected shape and locally expose.
As described above, making the following table face contact of electronic component 26 using pin etc. or with the immobilising degree of resin
In the case where the configuration of interval, when taking out lid 23 from mold after hardening, lid 23 is in 21 side of at least stator of detection circuit board 241
Face on have as pin trace opening portion 230.Also, at least part of electronic component 26 is in opening portion 230 to work
Expose to form the external of lid resin 52 of the resin of lid 23.In injection moulding, as described above, the only stator of electronic component 26
The face (lower surface) of 21 sides is supported by pin etc., so that the pattern being mounted in detection circuit board 241 is not damaged.As a result,
When taking out lid 23 from mold after hardening, in opening portion 230, only 21 side of at least stator in electronic component 26 is showed
Out.But it is also possible to using pin etc. to the face of 21 side of at least stator in electronic component 26 and it is adjacent thereto around prop up
It holds.In this case, in opening portion 230 after curing, and then around electronic component 26, i.e. in detection circuit board 241
The adjacent regions of fixed fixed position are exposed to the external of lid resin 52 with electronic component 26.
Although repeating, at least part of detection circuit board 241 and electronic component 26 is covered after the hardening of lid 23 by lid 23
Lid.Detection circuit board 241 and electronic component 26 can be carried without in addition setting shell as a result, motor 1 can be made to minimize
With it is cost effective.In addition, the electronic component 26 being mounted in detection circuit board 241 is surface installing type.Thereby, it is possible to make to wrap
It is miniaturised in the axial direction containing 1 entirety of motor including electronic component 26.
Moreover, lid 23 has by first resin 53 different from lid resin 52 in opening portion 230 come overlay electronic component 26
At least part of first resin portion 530.Thereby, it is possible to improve the waterproofness of electronic component 26 and dust tightness, can prevent
Short circuit between electronic component 26.In addition, the first resin 53 preferably has cementability.As a result, the first resin 53 be easy and electronics
Component 26 and lid 23 are closely sealed, and waterproofness and dust tightness further increase.
Moreover, detection leads component 271 has the detection lead division through hole 270 of perforation detection leads component 271.When hard
When taking out lid 23 from mold after change, the orientation in the opening of lead division through hole 270 is detected in the attached of detection circuit board 241
Closely.It also, include at least one of the detection leads component 271 including another party in the opening for detect lead division through hole 270
Part is exposed to the outside of lid 23.One or more detection lead 281 is electrically connected with detection circuit board 241, is passed through detection and is drawn
Portion's through hole 270 and the outside for being led to lid 23.
2. variation > of <
More than, embodiment illustrated of the invention is illustrated, but the present invention is not limited to above-mentioned embodiments.
Fig. 3 is the partial, longitudinal cross-sectional of the motor 1B an of variation.In the example in figure 3, it is injected to lid 23B
When molding, the lower surface point contact of the mold (illustration omitted) and electronic component 26B that make the surface for having hemispherical is to support inspection
Slowdown monitoring circuit plate 241B or detection leads component 271B, while flowing into the resin for having flow regime.As a result, with use front end tapering
The situation of pin etc. is compared, and the damage of electronic component 26B can be further suppressed.In addition, in this case, resin difficultly flows into electricity
In small gap around the point contact position of subassembly 26B and mold, therefore after curing, 23B is covered in opening portion 230B
Around have to downward and extend the inclined inclined surface 235B in direction.Also, inclined surface 235B is concave
Bending.
Fig. 4 is the partial, longitudinal cross-sectional of the motor 1C of other variations.In the example in fig. 4, pin etc. and electronic component 26C
Lower surface and the position radially separated with the lower surface of electronic component 26C detection circuit board 241C lower surface point
Jie Chu not be to support detection circuit board 241C or detection leads component 271C, while flowing into the resin for having flow regime.In this way, logical
It crosses and is supported in multiple points, can more stably support detection circuit board 241C.But the above-mentioned position being radially separated
It is the position for being fitted without circuit pattern in the lower surface of detection circuit board 241C.The damage of circuit pattern is prevented as a result,.
As described above, also radially being divided using pin etc. with the lower surface other than the lower surface of electronic component 26C
From position detection circuit board 241C lower surface supported in the case where, after hardening will lid 23C from mold take out when,
23C is covered other than the 230C of opening portion, also there is the second opening portion 236C in the position being radially separated with opening portion 230C.Inspection
At least part of slowdown monitoring circuit plate 241C is further to the outside for the lid resin 52C for forming lid 23C in the second opening portion 236C
Expose.In addition, the second opening portion 236C can also be circumferentially separated with opening portion 230C.
It is covered moreover, lid 23C has in the second opening portion 236C by the second resin 54C different from lid resin 52C
At least part of second resin portion 540C of detection circuit board 241C.Thereby, it is possible to improve detection circuit board 241C and electronics
The waterproofness and dust tightness of component 26C.In addition, the second resin 54C preferably has cementability.Second resin 54C and detection as a result,
Circuit board 241C and lid 23C are further closely sealed, and waterproofness and dust tightness further increase.In addition, the second resin 54C be open
At least part of first resin 53C of overlay electronic component 26C may be the same or different each other in portion 230C.
Fig. 5 is the partial, longitudinal cross-sectional of the motor 1D of other variations.In the example of fig. 5, stationary part 2D have comprising
The first electronic component 26D and the second electronic component 29D different from the first electronic component 26D as above-mentioned electronic component exist
Interior multiple electronic components.Also, in the example of fig. 5, the first electronic component 26D and the second electronic component 29D is in detection electricity
It is radially separated on the face of the stator side of road plate 241D and carries respectively each other.It however, it can be, the first electronic component
26D and the second electronic component 29D are circumferentially separated each other on the face of the stator side of detection circuit board 241D and carry respectively.
In injection moulding, the lower surface of the lower surface of the first electronic component 26D and the second electronic component 29D are tapering with front end respectively
The contact such as pin, while flowing into the resin for having flow regime.Moreover, multiple pin is connected to each other.23D will be covered after hardening as a result,
When being taken out from mold, firstly, the first electronic component 26D and the second electronic component 29D are located at the inside of lid 23D.Also, it covers
23D also has third opening portion 237D and the 4th opening portion 238D.At least part of first electronic component 26D is open in third
Expose in portion 237D to the external of the lid resin 52D as the resin for forming lid 23D.At least one of second electronic component 29D
Divide and exposes in the 4th opening portion 238D to the external of lid resin 52D.Moreover, lid 23D has third opening portion 237D and the
The groove portion 239D that four opening portion 238D are connected.Thereby, it is possible to open from groove portion 239D towards third opening portion 237D and the 4th
Oral area 238D, primary coating cover at least part of resin 55D of the first electronic component 26D and the second electronic component 29D.
Fig. 6 is the partial, longitudinal cross-sectional of the motor 1E of other variations.In the example of fig. 6, leads component 271E is detected
At least part than detection circuit board 241E is set by radial outside and with detection circuit board 241E axially and radially
Upper isolated position.Also, detect leads component 271E, comprising detect lead division through hole 270E opening in a side exist
The position of interior radially inner side is located at the inside of lid 23E, and another party in the opening comprising detecting lead division through hole 270E exists
The position of interior radial outside is exposed to the outside of lid 23E.One or more detection lead 281E and detection circuit board 241E electricity
Connection is led to the outside of lid 23E across the inside of lid 23E with detection lead division through hole 270E.
In the above-described embodiment, for detecting the detection circuit board of the position of the rotating part of motor and for driving horse
The drive circuit board reached is arranged independently of one another.But they may be set to be same circuit board.Also, detection circuit board and
The position of drive circuit board configuration can also be different from above-mentioned embodiment.
In the above-described embodiment, it has used in the radially inner side of stator configured with magnet, so-called inner-rotor type
Motor.But it is also possible to the motor using the radial outside in stator configured with magnet, so-called outer-rotor type.
Also, the shape of the detail section for each component, can also be different from shape shown in each figure of the application.And
And can also in the range of not generating contradiction the appropriately combined each element occurred in above-mentioned embodiment and variation.
Claims (16)
1. a kind of motor, has：
Stationary part；And
Rotating part is supported to revolve around the central axis vertically extended relative to the stationary part via bearing portion
Turn,
The stationary part has：
Stator；
Retainer portion keeps the stator；And
Lid, is fixed in the retainer portion,
The retainer portion has in the retainer opening portion opening for being formed at least axial side and from the retainer
Opening portion along axial depression recess portion,
The motor is characterized in that,
The lid covers the retainer opening portion,
At least part of the rotating part is located at the inside of the recess portion,
The circuit board that also there is the stationary part at least part to be covered by the lid,
At least part of the circuit board is located at the inside of the recess portion.
2. motor according to claim 1, which is characterized in that
The lid has：
Press-in portion is fixed on the retainer portion；And
Positioning region extends to the radial outside of the press-in portion, contacts in the axial direction with the retainer portion.
3. motor according to claim 2, which is characterized in that
The lid also has in the internal bearing incorporating section for being configured with the bearing portion,
At least part of the bearing incorporating section is located at the inside of the recess portion.
4. motor according to claim 3, which is characterized in that
The lid is resin system,
Equipped with one or more electronic components on the face of at least described stator side of the circuit board,
At least part of the electronic component is covered by the lid,
There is opening portion on the face covered in at least described stator side of the circuit board,
At least part of the electronic component is in the opening portion to the outer of the lid resin as the resin for forming the lid
Expose in portion.
5. motor according to claim 4, which is characterized in that
It is described cover to have in the opening portion electronic component covered by first resin different from the lid resin
At least part of first resin portion.
6. motor according to claim 5, which is characterized in that
First resin has cementability.
7. motor according to claim 6, which is characterized in that
In the opening portion, only at least stator side in the electronic component is showed out.
8. motor according to claim 7, which is characterized in that
It is described cover around the opening portion have to downward and extend the inclined inclined surface in direction,
The inclined surface is concavely curved.
9. motor according to claim 8, which is characterized in that
Described cover also has the second opening portion in the position being radially separated with the opening portion,
In turn, at least part of the circuit board is exposed in second opening portion to the external of the lid resin.
10. motor according to claim 9, which is characterized in that
Described cover has in second opening portion through the second resin covering circuit board different from the lid resin
At least part of second resin portion.
11. motor according to claim 10, which is characterized in that
The adjacent regions of the fixed position fixed with the electronic component in the opening portion, and then in the circuit board to
The external of the lid resin exposes.
12. according to claim 1 to motor described in any one in 3, which is characterized in that
The lid is resin system,
Equipped with multiple electronic components on the face of at least described stator side of the circuit board,
Multiple electronic components include the first electronic component and the second electronic component,
First electronic component and second electronic component are located at the inside of the lid,
The lid also has third opening portion and the 4th opening portion,
At least part of first electronic component is in the third opening portion to the lid as the resin for forming the lid
The external of resin exposes,
At least part of second electronic component is exposed in the 4th opening portion to the external of the lid resin,
The lid, which also has, to be connected third opening portion and the 4th opening portion and to the external opening of the lid resin
Groove portion.
13. motor according to claim 12, which is characterized in that
The stator is covered by the retainer resin as the resin for forming the retainer portion.
14. according to motor described in any one in claim 4 to 11, which is characterized in that
The rotating part have with the stator opposed magnet radially,
The electronic component is the position-detection sensor for detecting the position of the rotating part,
The position-detection sensor and at least part of the magnet are opposed in the axial direction.
15. according to motor described in any one in claim 4 to 11, which is characterized in that
The electronic component is surface installing type.
16. according to claim 1 to motor described in any one in 15, which is characterized in that
The stationary part has：
Leads component is located at least part than the circuit board in the position of radial outside or the circuit board
The position of the side opposite with the stator side；And
One or more lead, and the circuit board electrical connection,
The leads component has the lead division through hole for penetrating through the leads component,
At least part of the leads component is exposed to the external of the lid,
One or more lead is led to the outside of the lid across the lead division through hole.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017104619A JP2018201294A (en) | 2017-05-26 | 2017-05-26 | motor |
| JP2017-104619 | 2017-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108933505A true CN108933505A (en) | 2018-12-04 |
Family
ID=64449609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810499041.8A Pending CN108933505A (en) | 2017-05-26 | 2018-05-23 | Motor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2018201294A (en) |
| CN (1) | CN108933505A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020155919A1 (en) * | 2019-01-29 | 2020-08-06 | 广东松下环境***有限公司 | Stator, and motor and air supply device comprising same |
| TWI784436B (en) * | 2020-03-31 | 2022-11-21 | 日商平田機工股份有限公司 | rotating electrical machine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021145492A (en) * | 2020-03-12 | 2021-09-24 | 株式会社デンソー | Motor device |
| CN114243981B (en) * | 2022-01-10 | 2023-05-12 | 卧龙电气驱动集团股份有限公司 | Permanent magnet outer rotor motor |
-
2017
- 2017-05-26 JP JP2017104619A patent/JP2018201294A/en active Pending
-
2018
- 2018-05-23 CN CN201810499041.8A patent/CN108933505A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020155919A1 (en) * | 2019-01-29 | 2020-08-06 | 广东松下环境***有限公司 | Stator, and motor and air supply device comprising same |
| TWI818137B (en) * | 2019-01-29 | 2023-10-11 | 大陸商廣東松下環境系統有限公司 | Stator, motor and its air supply device |
| TWI784436B (en) * | 2020-03-31 | 2022-11-21 | 日商平田機工股份有限公司 | rotating electrical machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2018201294A (en) | 2018-12-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181204 |
|
| WD01 | Invention patent application deemed withdrawn after publication |