CN109478830A - Commutator and brush motor - Google Patents
Commutator and brush motor Download PDFInfo
- Publication number
- CN109478830A CN109478830A CN201780045258.5A CN201780045258A CN109478830A CN 109478830 A CN109478830 A CN 109478830A CN 201780045258 A CN201780045258 A CN 201780045258A CN 109478830 A CN109478830 A CN 109478830A
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- CN
- China
- Prior art keywords
- commutator
- commutator segment
- outer diameter
- interconnecting piece
- brush
- 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.)
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
Commutator (100) includes: commutator segment (110), constitutes winding interconnecting piece (101) and brush sliding part (102)；And supporting member (120), with the state support commutator segment (110) contacted with commutator segment (110).Layer (117) are corroded in being at least partially formed with for the contact surface (115) contacted with supporting member (120) of commutator segment (110), which there is the depth in the erosion portion (116) and the erosion layer (117) that enter commutator segment for resin and formed to be greater than 0 μm and be 10 μm or less.
Description
Technical field
This disclosure relates to commutator and have the brush motor of the commutator.
Background technique
All the time, equipped with the brush motor for having commutator in the electrical equipments such as domestic vacuum cleaners.As
Such commutator can enumerate the commutation of the commutator 800 or patent document shown in fig. 62 of patent document 1 shown in fig. 5
Device 900.
In recent years, the requirement for the energy-saving of electrical equipment is gradually increased.As the method for meeting the requirement it
One, it is contemplated that the method for improving the efficiency of brush motor.In order to realize the raising of efficiency, has studied and inhibit commutator electronic
The method of the loss of machine.
One reason of the loss as brush motor, such as copper loss can be enumerated.Copper loss results from and commutator
800, the winding that 900 winding interconnecting piece 801,901 connects.As inhibit the copper loss generation method, it is contemplated that increase around
The line footpath of group and reduce the method for the resistance value of winding.Therefore, commutator 800,900 becomes winding interconnecting piece 801,901 from electricity
The construction that brush sliding part 802,902 is bent outward.By being set as such construction, it is capable of increasing winding interconnecting piece 801,901
Outer diameter W1 and the distance between increasing adjacent hook 811a, 911a of winding interconnecting piece 801,901.Thereby, it is possible to hook 811a,
911a winds the biggish winding of line footpath.Inhibit the generation of copper loss as a result, it is possible to reduce the resistance value of winding.
In addition, another main cause of the loss as brush motor, can enumerate brush sliding contact loss.Electricity
Swiping dynamic contact loss is generated due to the contact between brush and commutator 800,900 of powering rubs.As the inhibition electricity
The method for swiping the generation of dynamic contact loss, it is contemplated that reduce brush sliding part 802,902 with power supply brush contact contact
The circumferential speed in face 814,914 and reduce contact friction method.Therefore, commutator 800,900 become brush sliding part 802,
Construction 902 outer diameter W2 smaller than the outer diameter W1 of winding interconnecting piece 801,901.By being set as such construction, electricity can reduce
The circumferential speed with the contact surface 814,914 of power supply brush contact of brush sliding part 802,902.As a result, it is possible to reduce contact
The generation for rubbing and brush sliding contact being inhibited to be lost.
In addition, in commutator 800,900, in the part of the composition brush sliding part 802,902 of commutator segment 810,910
812,912 it is equipped with anchoring section 817,917.In addition, in commutator 800, in the composition winding interconnecting piece 801 of commutator segment 810
Part 811 also is provided with anchoring section 817.By the way that above-mentioned anchoring section 817,917 is arranged, to improve commutator segment 810,910 and branch
Bond strength between bearing member 820,920.
However, the wall thickness of commutator segment 810,910 increases if anchoring section 817,917 is arranged in commutator segment 810,910.Cause
This, the centrifugal force that commutator segment 810,910 is acted on when commutator 800,900 rotates increases.In addition, if commutator segment 810,
910 setting anchoring sections 817,917, then the shape of commutator segment 810,910 becomes complicated.Therefore, the cost of commutator 800,900 mentions
It is high.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 8-322206 bulletin
Patent document 2: Japanese Unexamined Patent Publication 9-182383 bulletin
Summary of the invention
The purpose of the present disclosure is to provide the higher commutator of bond strength between commutator segment and supporting member and have
The brush motor of the commutator.
The commutator of the disclosure includes: commutator segment, constitutes winding interconnecting piece and brush sliding part；And supporting member,
Its state support commutator segment to be contacted with commutator segment.In at least partial shape for the contact surface of commutator segment contacted with supporting member
At there is erosion layer, which there is the depth in the erosion portion and the erosion layer that enter commutator segment for resin and formed to be greater than 0 μm
It and is 10 μm or less.
The brush motor of the disclosure has above-mentioned commutator.
Bond strength between the commutator of the disclosure and the commutator segment of brush motor and supporting member is higher.
Detailed description of the invention
Fig. 1 is the half sectional view for indicating the commutator of embodiment.
Fig. 2 is the schematic diagram for having the electric blower of brush motor of embodiment.
Fig. 3 is the perspective view of the armature of the brush motor of embodiment.
Fig. 4 is the half sectional view for indicating the commutator of variation.
Fig. 5 is the half sectional view for indicating the commutator of previous example.
Fig. 6 is the half sectional view for indicating the commutator of another previous example.
Specific embodiment
Hereinafter, being based on attached drawing, illustrate the commutator of the disclosure and the embodiment of brush motor.The mesh of explanation is provided
Be that those skilled in the art is made to be completely understood by the disclosure, it is intended that not thus limit claims documented by theme.
It is excessively described in detail in addition, omitting sometimes.Item is had been well known specifically for example, omitting sometimes
Repeated explanation bright and for substantially the same structure.It is intended that explanation is avoided to become excessively tediously long, make this field skill
Art personnel are readily appreciated that.
Hereinafter, being illustrated for enumerating the commutator for being equipped on the brush motor of domestic vacuum cleaners.Commutator electricity
The structure other than the structure for being related to commutator in the structure of motivation is as in the past.Thus, only to brush motor
In the structure for being related to commutator be illustrated, omit for the structure other than commutator explanation.
[embodiment]
Hereinafter, explaining the structure of the commutator of the disclosure in detail using attached drawing.
(outline structure of commutator)
Fig. 1 is the half sectional view for indicating the commutator of embodiment.As shown in Figure 1, the commutator 100 of embodiment includes
Multiple commutator segments 110 and supporting member 120 for supporting above-mentioned commutator segment 110.
Each commutator segment 110 is substantially the electric conductor of strip, is formed by metals such as copper.Each commutator segment 110 side at one end
There is flat 112 with riser part 111 and in another side.Also, it is formed in each riser part 111 for winding
The hook 111a of winding (not shown).
Supporting member 120 is substantially cylindric insulator, is formed by insulating materials such as insulative resins.Support structure
Part 120 is in the multiple commutator segments 110 of its periphery surface bearing.
Multiple commutator segments 110 are configured at the outer peripheral surface of supporting member 120 side by side in a manner of being integrally formed as tubular.Respectively
The riser part 111 of commutator segment 110 is all towards identical direction.Commutator 100 is constituted using above-mentioned riser part 111
Winding interconnecting piece 101.That is, winding interconnecting piece 101 is the aggregate of multiple riser parts 111.On the other hand, each commutator segment 110
Flat 112 also all towards identical direction.The brush for constituting commutator 100 using above-mentioned flat 112 is sliding
Dynamic portion 102.That is, brush sliding part 102 is the aggregate of multiple flats 112.
The outer diameter of winding interconnecting piece 101 is different from the outer diameter of brush sliding part 102.Specifically, winding interconnecting piece 101
Outer diameter W1 is bigger than the outer diameter W2 of brush sliding part 102.Thereby, it is possible to wind the biggish winding of line footpath.In addition, it is further preferred that
The outer diameter W1 of winding interconnecting piece 101 is 120% or more of the outer diameter W2 of brush sliding part 102.Thus, it is easier at 111a volumes of hook
Around the biggish winding of line footpath.Also, it is further preferred that the outer diameter W1 of winding interconnecting piece 101 is the outer diameter W2 of brush sliding part 102
150% or less.Thereby, it is possible to prevent the outer diameter W1 of winding interconnecting piece 101 from excessively increasing.As a result, it is possible to will be in commutator
The centrifugal force that commutator segment 110 is acted on when 100 rotation inhibits smaller.
The outer diameter W1 of winding interconnecting piece 101 is determined according to the line footpath for the winding for being wound in hook 111a.Brush sliding part 102
Outer diameter W2 determined according to the piece number of commutator segment 110, the width of commutator segment 110 and the width of brush (not shown) of powering.
In each commutator segment 110, constitutes the riser part 111 of winding interconnecting piece 101 and constitute the flat of brush sliding part 102
Middle section 113 between smooth part 112 is bent to step-like.Hereby it is achieved that the outer diameter W1 of winding interconnecting piece 101 is more sliding than brush
The outer diameter W2 in dynamic portion 102 big structure.
In addition, for being bent to step-like multiple commutator segments 110 for middle section 113, for example, can by with
The mode for keeping the outer diameter of the part of winding interconnecting piece 101 to be become different from the outer diameter of part of brush sliding part 102 to be become
It carries out columnar metal component further progress processing obtained from drawing process and is made.In addition, also can be by will be each
The middle section 113 of commutator segment 110 is separately bent to step-like and is made.
In each commutator segment 110, the wall thickness of flat 112 be in 100% or more of the wall thickness of riser part 111 and
In 110% or less range.If the wall thickness of flat 112 is in 100% or more and 110% of the wall thickness of riser part 111
In following range, then the outer diameter W2 of brush sliding part 102 can be further decreased.Thereby, it is possible to reduce brush sliding part 102
With power supply brush contact contact surface 114 circumferential speed.Brush sliding is inhibited to connect as a result, it is possible to reduce contact friction
Touch the generation of loss.
In the contact surface 115 of each commutator segment 110 contacted with supporting member 120, throughout commutator 100 complete cycle formed
Have and corrode layer 117, which there is the depth of the erosion portion 116 of rime shape and the erosion layer 117 to be greater than 0 μm and be 10 μ
M or less.It is formed by the complete cycle throughout commutator 100 and corrodes layer 117, each commutator segment 110 and bearing can be further increased
Bond strength between component 120.Layer 117 is corroded in addition, also can relatively easily be formed.It can also be in addition, corroding layer 117
It is not formed throughout the complete cycle of commutator 100, the part in circumferential direction can also be formed in.Corroding layer 117 can be by implementing acid
Property etching and formed.If the depth for corroding layer 117 is set as greater than 0 μm and is 10 μm of ranges below, it can keep strong
It is formed in the state of degree and corrodes layer 117.
That is, the part for constituting commutator segment 110 is contacted certainly by etching in the case where forming erosion layer 117
Face 115 gradually removes.The partial development of commutator segment 110 being removed is rime shape.As a result, make corrode layer 117 develop compared with
In the case where depth, the opening portion for the part of commutator segment 110 being removed also broadens.If the opening portion of commutator segment 110 becomes
Wide, then corroding layer 117 cannot keep rime shape and becomes simple hole.It can not expect that form porose commutator segment 110 has
The retentivity as the erosion layer 117 being properly formed.
The resin 121 of material as supporting member 120 intricately enters in the erosion portion 116 for corroding layer 117.Erosion portion
116 refer to the part of commutator segment 110 entered for resin 121.It corrodes layer 117 and refers to that the formation in commutator segment 110 has erosion portion
116 layer.By entering resin 121 in erosion portion 116, so that each commutator segment 110 be made to connect with supporting member 120 with higher
Intensity is closed to be bonded together.It therefore, there is no need to that anchoring section is arranged in each commutator segment 110, will not increase because of anchoring section and respectively change
To the riser part 111 of piece 110 and the wall thickness of flat 112.It is changed thus, it is possible to will be acted on when commutator 100 rotates
Inhibit smaller to the centrifugal force of piece 110.In addition, the shape of each commutator segment 110 will not become complicated.Thus, it is also possible to inhibit
The cost of commutator 100 improves.
Above such commutator 100 can for example be manufactured as described below.
Firstly, preparing so as to become the outer diameter of the part of winding interconnecting piece 101 and the portion that become brush sliding part 102
The different mode of the outer diameter divided carries out columnar metal component obtained from drawing process.
Before the metal component is put into mold, the contact surface contacted with supporting member 120 will be become to commutator segment 110
The whole implementation of 115 part is used to form the processing of the erosion layer 117 in the erosion portion 116 with rime shape.Specifically, will
Commutator segment 110 is soaked in chemical etchant.Occur on the surface for the commutator segment 110 for being soaked in chemical etchant because of chemical etchant
Caused by corrode, therefore generate short space.By using chemical etchant, suitably roughening short space is known as corroding
Portion 116.The shape in erosion portion 116 is also possible to " dendroid ".
Later, metal component is put into mold, carries out mould process using resin.At this point, resin 121 before curing is complicated
Ground enters in the erosion portion 116 for corroding layer 117.Each commutator segment 110 is bonded together with supporting member 120 as a result, is completed real
Apply the commutator 100 of mode.
For the commutator 100 of embodiment, layer 117 is corroded by entering resin 121 before curing intricately
Erosion portion 116 in, so that each commutator segment 110 is bonded together with supporting member 120.Therefore, even if not in each commutator segment
110 setting anchoring sections, can also make each commutator segment 110 be bonded together with supporting member 120 with higher bond strength.
In addition it is also possible to be set as forming the structure for corroding layer 117 and being also provided with anchoring section in commutator segment 110.In the feelings
It is also under condition, can be improved the bond strength between each commutator segment 110 and supporting member 120, therefore can for example reduce anchoring
Portion or the quantity for reducing anchoring section.
(brush motor)
Fig. 2 is the schematic diagram for having the electric blower 1 of the brush motor of embodiment.As shown in Fig. 2, electronic
In air blower 1, closes in one direction and be equipped with commutator electricity in the cylindric frame 2 that is open in the opposite direction with the party
Motivation.Brush motor is formed by excitation 3 and armature 4.Excitation 3 includes field core 5 and excitation winding 6, the field core 5
It is square and tubular and is formed with opposite a pair of of salient pole in it, which is wound in salient pole.Armature 4 is with convex by this
The mode of pole clamping is rotatably freely set in cylinder.
Fig. 3 is the perspective view of the armature 4 of the brush motor of embodiment.As shown in figure 3, armature 4 has armature iron
Core 21, armature winding 22, commutator 100 and rotary shaft 9.
As described above, the commutator 100 of present embodiment includes commutator segment 110 and supporting member 120, the commutator segment 110
Winding interconnecting piece 101 and brush sliding part 102 are constituted, which is commutated with the state support contacted with commutator segment 110
Piece 110.Layer 117 is corroded in being at least partially formed with for the contact surface 115 contacted with supporting member 120 of commutator segment 110, this is invaded
There is erosion layer 117 depth in the erosion portion 116 and the erosion layer 117 that enter commutator segment 110 for resin and formed to be greater than 0 μm and be
10 μm or less.
Bond strength as a result, between commutator segment 110 and supporting member 120 is higher.
It is further preferred, that the shape in erosion portion 116 is rime shape.
It is further preferred, that the outer diameter of winding interconnecting piece 101 is different from the outer diameter of brush sliding part 102.
It is further preferred, that the outer diameter of winding interconnecting piece 101 be brush sliding part 102 outer diameter 120% or more and
150% or less.
It is further preferred, that constituting part and the composition brush sliding part of winding interconnecting piece 101 in commutator segment 110
Middle section 113 between 102 part is bent to step-like.
Alternatively, it is also possible to be, commutator segment 110 be by pair so that winding interconnecting piece 101 outer diameter and brush sliding part 102
The different mode of outer diameter carry out columnar component further progress processing obtained from drawing process and formed.
It is further preferred, that the wall thickness for constituting the part of brush sliding part 102 is to constitute winding to connect in commutator segment 110
100% or more and 110% or less of the wall thickness of the part of socket part 101.
Alternatively, it is also possible to be, the brush motor of present embodiment has commutator 100.
(variation)
Fig. 4 is the half sectional view for indicating the commutator of variation.As shown in figure 4, in the commutator 200 of variation, respectively
The contact surface 215 of commutator segment 210 contacted with supporting member 220 is set as concaveconvex shape.At this point, the commutator of variation
200 is different from the commutator 100 of above embodiment.Other structures are substantially real with the commutator of above embodiment 100
It is identical in matter.Thus, only above-mentioned difference is explained in detail, other structures are briefly illustrated or omitted the description.
The commutator 200 of variation includes multiple commutator segments 210 and the supporting member for supporting above-mentioned commutator segment 210
220.Each commutator segment 210 has riser part 211, flat 212, middle section 213 and connects with power supply brush contact
Contacting surface 214.The hook 211a for winding winding (not shown) is formed in each riser part 211.Also, winding interconnecting piece 201
Outer diameter is smaller than the outer diameter of brush sliding part 202.
In each commutator segment 210, the flat 212 of the part as the contact surface 215 contacted with supporting member 220
Surface is set as concaveconvex shape.In addition, in each commutator segment 210, in the whole shape of the contact surface 215 contacted with supporting member 220
At the erosion layer 217 for having the erosion portion (not shown) with rime shape.It is each to commutate as a result, in the range of being set as concaveconvex shape
Contact area between piece 210 and supporting member 220 increases, therefore can expand the range for being formed with and corroding layer 217.Thus,
The bond strength between each commutator segment 210 and supporting member 220 can be further increased.
In addition, concaveconvex shape is not limited to the surface of flat 212, it can also be set to the surface of riser part 211, it can also
To be set to the surface of middle section 213, the entirety of the contact surface 215 contacted with supporting member 220 can also be set to.
Industrial availability
The commutator and brush motor of the disclosure can be widely used in the electrical equipments such as domestic vacuum cleaners.
Description of symbols
1, electric blower；2, frame；3, excitation；4, armature；5, field core；6, excitation winding；9, rotary shaft；21,
Armature core；22, armature winding；100,200, commutator；101,201, winding interconnecting piece；102,202, brush sliding part；
110,210, commutator segment；111,211, riser part；111a, 211a, hook；112,212, flat；113,213, middle part
Point；114,214, contact surface；115,215, contact surface；116, erosion portion；117,217, erosion layer；120,220, supporting member；
121, resin；The outer diameter of W1, winding interconnecting piece；The outer diameter of W2, brush sliding part.
Claims (9)
1. a kind of commutator, wherein
The commutator includes:
Commutator segment constitutes winding interconnecting piece and brush sliding part；And
Supporting member, with commutator segment described in the state support that is contacted with the commutator segment,
It is at least partially formed with erosion layer in the contact surface of the commutator segment contacted with the supporting member, erosion layer tool
There is the depth in the erosion portion and the erosion layer that enter commutator segment for resin and formed to be greater than 0 μm and is 10 μm or less.
2. commutator according to claim 1, wherein
The shape in the erosion portion is rime shape.
3. commutator according to claim 1, wherein
The outer diameter of the winding interconnecting piece is different from the outer diameter of the brush sliding part.
4. commutator according to claim 3, wherein
The outer diameter of the winding interconnecting piece is 120% or more and 150% or less of the outer diameter of the brush sliding part.
5. commutator according to claim 1, wherein
In the commutator segment, constitute between the part of the winding interconnecting piece and the part of the composition brush sliding part
Between be partially bent to it is step-like.
6. commutator according to claim 1, wherein
The commutator segment is by pair so that the outer diameter of the winding interconnecting piece side different from the outer diameter of the brush sliding part
Formula carries out the processing of columnar component further progress obtained from drawing process and is formed.
7. commutator according to claim 1, wherein
In the commutator segment, the wall thickness for constituting the part of the brush sliding part is in the part for constituting the winding interconnecting piece
100% or more of wall thickness and 110% or less range in.
8. commutator according to claim 1, wherein
In the commutator segment, at least part of the contact surface contacted with the supporting member is set as concaveconvex shape.
9. a kind of brush motor, wherein
The brush motor has commutator described in claim 1.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-176080 | 2016-09-09 | ||
| JP2016176080 | 2016-09-09 | ||
| PCT/JP2017/025089 WO2018047459A1 (en) | 2016-09-09 | 2017-07-10 | Commutator and commutator motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109478830A true CN109478830A (en) | 2019-03-15 |
Family
ID=61562886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780045258.5A Pending CN109478830A (en) | 2016-09-09 | 2017-07-10 | Commutator and brush motor |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPWO2018047459A1 (en) |
| CN (1) | CN109478830A (en) |
| WO (1) | WO2018047459A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035920A (en) * | 1988-01-19 | 1989-09-27 | 德昌电机股份有限公司 | The assembled commutator of motor |
| JPH0819223A (en) * | 1994-06-24 | 1996-01-19 | Jeco Co Ltd | Manufacturing method of motor commutator |
| CN1146083A (en) * | 1995-05-26 | 1997-03-26 | 松下电器产业株式会社 | Commutator and commutator motor |
| JPH09182382A (en) * | 1995-12-25 | 1997-07-11 | Matsushita Electric Ind Co Ltd | Commutator, manufacture of the same and commutator motor |
| JP2002051506A (en) * | 2000-08-02 | 2002-02-15 | Hitachi Chem Co Ltd | Commutator for motor, method of manufacturing motor and commutator for motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH698300B1 (en) * | 2006-01-24 | 2009-07-15 | Alstom Technology Ltd | Stator winding of a rotating electric machine and a method for manufacturing such a stator winding. |
-
2017
- 2017-07-10 CN CN201780045258.5A patent/CN109478830A/en active Pending
- 2017-07-10 JP JP2018538255A patent/JPWO2018047459A1/en active Pending
- 2017-07-10 WO PCT/JP2017/025089 patent/WO2018047459A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035920A (en) * | 1988-01-19 | 1989-09-27 | 德昌电机股份有限公司 | The assembled commutator of motor |
| JPH0819223A (en) * | 1994-06-24 | 1996-01-19 | Jeco Co Ltd | Manufacturing method of motor commutator |
| CN1146083A (en) * | 1995-05-26 | 1997-03-26 | 松下电器产业株式会社 | Commutator and commutator motor |
| JPH09182382A (en) * | 1995-12-25 | 1997-07-11 | Matsushita Electric Ind Co Ltd | Commutator, manufacture of the same and commutator motor |
| JP2002051506A (en) * | 2000-08-02 | 2002-02-15 | Hitachi Chem Co Ltd | Commutator for motor, method of manufacturing motor and commutator for motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2018047459A1 (en) | 2019-02-28 |
| WO2018047459A1 (en) | 2018-03-15 |
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Application publication date: 20190315 |