CN107634414A - Commutator and motor - Google Patents
Commutator and motor Download PDFInfo
- Publication number
- CN107634414A CN107634414A CN201711009229.1A CN201711009229A CN107634414A CN 107634414 A CN107634414 A CN 107634414A CN 201711009229 A CN201711009229 A CN 201711009229A CN 107634414 A CN107634414 A CN 107634414A
- Authority
- CN
- China
- Prior art keywords
- commutator
- commutator segment
- segment
- threading hole
- thread
- 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.)
- Granted
Links
- 238000004804 winding Methods 0.000 claims abstract description 18
- 239000010445 mica Substances 0.000 claims abstract description 17
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 17
- 239000000206 moulding compound Substances 0.000 claims abstract description 11
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 239000000945 filler Substances 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 6
- 229920001187 thermosetting polymer Polymers 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000000641 cold extrusion Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000010930 yellow gold Substances 0.000 description 2
- 229910001097 yellow gold Inorganic materials 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
Landscapes
- Motor Or Generator Current Collectors (AREA)
Abstract
This application discloses a kind of commutator and it is configured with the motor of this commutator.Described commutator includes:Circumferentially some commutator segments of arranged for interval, the mica sheet between the commutator segment, the moulding compound that the commutator segment and the mica sheet are fixed together；The threading hole for penetrating rotor windings the end of a thread is offered in the commutator segment.This commutator heat endurance of the application is good (being not easy the row of jump), and in light weight, the centrifugal force that rotor windings the end of a thread is subject to when rotating at a high speed is small, and contact conditions are good when commutator is run with brush, reduces commutation spark and is formed.
Description
Technical field
The application is related to the motor of a kind of commutator and this commutator of configuration.
Background technology
The commutator segment of existing commutator is having a step with the region that rotor windings weld, and has a line embedding groove to be used for accommodating
Winding the end of a thread and commutator are welded on one piece by machine winding the end of a thread, the rear point welding process that carries out.Have the following disadvantages：
1st, spot-welding technology is undesirable, easy rosin joint, or the disconnected phenomenon of weldering, due to being irreversible critical process and can not be thorough
The process of examination.
2nd, the utilization rate of material is not high, and commutator is carried out cutting groove processing after shaping, easily makes commutator cause to dive
Hidden danger.
3rd, the process of manufacturing process is miscellaneous
4th, brush will easily be caused if vibration phenomenon occurs in rotor because of the small stair on commutator after postorder assembling
Abrasion and burning machine phenomenon
5th, due to original commutator segment be entity weight it is larger, height turn, high-temperature (during work commutator segment surface temperature compared with
It is high), in the case of high centrifugal force, larger surface run_out can be produced；
6th, simultaneously because high temperature caused by motor operation course meeting, can make commutator segment thermal expansion deformation, so as to cause to commutate
The circle bounce of device surface becomes big, and all large effect can will be produced from face of electrical machinery life, life.
The content of the invention
The purpose of the application is：In view of the above-mentioned problems, the application propose a kind of structure more consolidate rational commutator and
A kind of motor for being configured with this commutator.
The technical scheme of the application is：
A kind of commutator, including:
Circumferentially some commutator segments of arranged for interval,
Mica sheet between the commutator segment, and
The moulding compound that the commutator segment and the mica sheet are fixed together；
The threading hole for penetrating rotor windings the end of a thread is offered in the commutator segment.
This commutator of the application is on the basis of above-mentioned technical proposal, in addition to following preferred scheme：
The axially bored line of the threading hole is arranged with the diameter parallel of the commutator.
The threading hole is through hole.
The threading hole and the commutator segment have the identical length dimension on the commutator axis direction.
Also include the reinforcing ring being fixed together with the commutator segment, the mica sheet and the moulding compound.
The commutator segment, the mica sheet and the reinforcing ring are fixed by means of the thermosetting filler being moulded between four
Together, the moulding compound is formed after the thermosetting filler cooling.
The commutator segment is smooth arc in the outer surface of the commutator radial direction.
The commutator segment is molded with using cold-extrusion technology.
The threading hole is blind hole.
A kind of motor, including rotor windings, it is characterised in that the also commutator including said structure, the rotor windings
The end of a thread penetrate in the threading hole and fixed with the commutator segment spot welding.
The application has the advantages that：
1st, open up threading hole on commutator segment, during practical application the end of a thread of rotor windings penetrate threading hole and with commutator segment spot welding
It is fixed, without setting line embedding groove, it is ensured that the globality of commutator segment outer surface structure, so as to strengthen the abrasion resistance of commutator segment, prolong
Long commutator segment service life.
2nd, commutator segment uses the hollow structure with threading hole, and reducing the materials of the yellow gold of commutator segment reduces into
This.
3rd, commutator segment uses the hollow structure with threading hole, its weight saving, and then causes the motor after finished product is made
The weight of rotor also mitigates, so that motor can obtain higher rotating speed.
4th, commutator segment is molded with using cold-extrusion technology so that commutator segment has good surface smoothness and uniform
Stress distribution, and the case hardness of commutator segment is obtained and is improved greatly, while cause the friction system between commutator segment and brush
Number reduces, and improves the power attenuation of heating and motor, improves motor performance.
5th, the end of a thread of rotor windings is through in threading hole, and threading hole hole wall carries out radial support to the end of a thread, reduces the end of a thread
Depart from the possibility of commutator segment because of centrifugal action.Also, the end of a thread of rotor windings is through in threading hole, it is closer to changing
To device center, when motor rotates, the centrifugal action that the end of a thread is subject to is smaller.
Brief description of the drawings
The application is described further with specific embodiment below in conjunction with the accompanying drawings：
Fig. 1 is the axial section of commutator in the embodiment of the present application one；
Fig. 2 is the axial side view of commutator in the embodiment of the present application one；
Fig. 3 is the axial section of commutator in the embodiment of the present application two；
Fig. 4 is the axial side view of commutator in the embodiment of the present application two.
Wherein：1- bushings, 2- commutator segments, 2a- threading holes, 3- mica sheets, 4- moulding compounds, 5- reinforcing rings.
Embodiment
The application is described in further detail below by embodiment combination accompanying drawing.The application can be with a variety of
Different forms is realized, however it is not limited to embodiment described by the present embodiment.The purpose of detailed description below is provided
It is easy for becoming apparent from present disclosure thorough explanation, the words of the wherein indicating position such as upper and lower, left and right is only pin
To shown structure in respective figure for position.
Embodiment one：
Figures 1 and 2 show that a preferred embodiment of this commutator of the application, is with traditional commutator identical,
It also includes：Copper bushing 1, circumferentially arranged for interval the periphery of bushing 1 multiple commutator segments 2, located at commutator segment
Between mica sheet 3, the moulding compound 4 that bushing 1, commutator segment 2 and mica sheet 3 are fixed together.
The key improvements of the present embodiment are, the threading for penetrating rotor windings the end of a thread is offered in above-mentioned commutator segment 2
Hole 2a.Whole commutator is not provided with traditional rule slot structure.
When this commutator of the present embodiment is applied to motor, the end of a thread of rotor windings penetrate in threading hole 2a and with commutation
The spot welding of piece 2 is fixed, and without setting rule slot structure, can so ensure the globality of the outer surface structure of commutator segment 2, so as to strengthen
The abrasion resistance of commutator segment, extend commutator segment service life.And the end of a thread of rotor windings is through in threading hole 2a, the end of a thread is carried out
Radial support, reduce the possibility that the end of a thread departs from commutator segment because of centrifugal action.Also, the end of a thread of rotor windings is through
In string holes 2a, it is closer to commutator center, and when motor rotates, the centrifugal action that the end of a thread is subject to is smaller.
Because commutator segment 2 is yellow gold material, costly, and the commutator segment 2 of the present embodiment is using with wearing for price
String holes 2a hollow structure, reduce the materials and weight of commutator segment 2, reduce cost.Simultaneously as the weight of commutator segment 2 subtracts
Gently so that the weight of the rotor after finished product is made also mitigates, so that motor can obtain higher rotating speed.
In the present embodiment, commutator segment 2 is flat in the outer surface of the radial direction of bushing 1 (namely radial direction of the commutator)
Sliding arc surface, and commutator segment 2 is molded with using cold-extrusion technology, so that commutator segment has good surface smoothness
With uniform stress distribution, and cause commutator segment case hardness obtain and improve greatly.Commutator segment 2 is hollow material.
In this implementation, above-mentioned threading hole 2a is through hole, and the axis of threading hole 2a axially bored line and bushing 1 (namely should
The axis of commutator) parallel arrangement.Threading hole 2a and commutator segment 2 have the identical length dimension on the axis direction of bushing 1.
In order to strengthen the overall construction intensity of the commutator segment, be surrounded with the periphery of bushing 1 with bushing 1, commutator segment 2,
The reinforcing ring 5 that mica sheet 3 and moulding compound 4 are fixed together.During making, the bushing 1, commutator segment 2, mica sheet 3 and reinforcing ring 5
It is fixed together by means of the thermosetting filler being moulded between four, described mould is just formd after the cooling of thermosetting filler
The fastening of bushing 1, commutator segment 2, mica sheet 3 and reinforcing ring 5 is combined together by plastics 4, the moulding compound 4 of solidification.Commutator segment rises logical
Electro ultrafiltration, mica sheet and filler play insulating effect, and reinforcing ring plays reinforcement effect.
It should be noted that above-mentioned bushing 1, which primarily serves, strengthens the integrally-built effect of the commutator, it is that this is changed that it, which is not,
To the required structure of device, can save.Many commutators are all no copper bushings.
Embodiment two：
Fig. 3 and Fig. 4 shows another specific embodiment of this commutator of the application, the commutator in the present embodiment with
The structure of above-described embodiment one is essentially identical, and unique difference is：The threading hole 2a opened up in the present embodiment commutator segment 2 is blind hole
Through-hole structure in structure, rather than embodiment one.
Certainly, above-described embodiment is only the technical concepts and features for illustrating the application, and its object is to make people much of that
Solution present context is simultaneously implemented according to this, and the protection domain of the application can not be limited with this.It is all according to the application major technique
The equivalent transformation or modification that the Spirit Essence of scheme is done, should all cover within the protection domain of the application.
Claims (10)
1. a kind of commutator, including:
Circumferentially some commutator segments of arranged for interval (2),
Mica sheet (3) between the commutator segment, and
The moulding compound (4) that the commutator segment (2) and the mica sheet (3) are fixed together；
Characterized in that,
The threading hole (2a) for penetrating rotor windings the end of a thread is offered in the commutator segment (2).
2. commutator according to claim 1, it is characterised in that the axially bored line of the threading hole (2a) and the commutator
Diameter parallel arrangement.
3. commutator according to claim 2, it is characterised in that the threading hole (2a) is through hole.
4. commutator according to claim 3, it is characterised in that the threading hole (2a) and the commutator segment (2) have
The identical length dimension on the commutator axis direction.
5. commutator according to claim 1, it is characterised in that also include and the commutator segment (2), the mica sheet
And the reinforcing ring (5) that is fixed together of the moulding compound (4) (3).
6. commutator according to claim 5, it is characterised in that the commutator segment (2), the mica sheet (3) and described
Reinforcing ring (5) is fixed together by means of the thermosetting filler being moulded between four, is formed after the thermosetting filler cooling
The moulding compound (4).
7. commutator according to claim 1, it is characterised in that the commutator segment (2) is in the commutator radial direction
Outer surface be smooth arc.
8. commutator according to claim 7, it is characterised in that the commutator segment (2) using cold-extrusion technology be molded and
Into.
9. commutator according to claim 1, it is characterised in that the threading hole (2a) is blind hole.
10. a kind of motor, including rotor windings, it is characterised in that also include the commutation as described in any in claim 1 to 9
Device, the end of a thread of the rotor windings are penetrated in the threading hole (2a) and fixed with the commutator segment (2) spot welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711009229.1A CN107634414B (en) | 2017-10-25 | 2017-10-25 | Commutator and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711009229.1A CN107634414B (en) | 2017-10-25 | 2017-10-25 | Commutator and motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107634414A true CN107634414A (en) | 2018-01-26 |
| CN107634414B CN107634414B (en) | 2024-03-15 |
Family
ID=61106403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711009229.1A Active CN107634414B (en) | 2017-10-25 | 2017-10-25 | Commutator and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107634414B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110943353A (en) * | 2019-12-19 | 2020-03-31 | 瑞安市德雅电子有限公司 | Commutator product with reinforcing ring and manufacturing process |
| CN110943353B (en) * | 2019-12-19 | 2024-10-22 | 瑞安市德雅电子有限公司 | Commutator product with reinforcing ring and manufacturing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001069724A (en) * | 1999-08-25 | 2001-03-16 | Asmo Co Ltd | Fixing structure for commutator segment in commutator |
| CN101227050A (en) * | 2008-01-23 | 2008-07-23 | 宋昌荣 | Improvement of commutator bar structure in commutalor |
| CN202308717U (en) * | 2011-09-20 | 2012-07-04 | 宁波市恒极机电有限公司 | Plug-type all-plastic reverser for starting motor |
| CN202513425U (en) * | 2012-04-27 | 2012-10-31 | 浙江三禾机电有限公司 | Novel motor commutator |
| CN104682152A (en) * | 2013-11-29 | 2015-06-03 | 常州五王电机有限公司 | Commutator |
| CN205051140U (en) * | 2015-10-30 | 2016-02-24 | 安固集团有限公司 | Commutator segment |
| CN207409775U (en) * | 2017-10-25 | 2018-05-25 | 锐奇控股股份有限公司 | Commutator and motor |
-
2017
- 2017-10-25 CN CN201711009229.1A patent/CN107634414B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001069724A (en) * | 1999-08-25 | 2001-03-16 | Asmo Co Ltd | Fixing structure for commutator segment in commutator |
| CN101227050A (en) * | 2008-01-23 | 2008-07-23 | 宋昌荣 | Improvement of commutator bar structure in commutalor |
| CN202308717U (en) * | 2011-09-20 | 2012-07-04 | 宁波市恒极机电有限公司 | Plug-type all-plastic reverser for starting motor |
| CN202513425U (en) * | 2012-04-27 | 2012-10-31 | 浙江三禾机电有限公司 | Novel motor commutator |
| CN104682152A (en) * | 2013-11-29 | 2015-06-03 | 常州五王电机有限公司 | Commutator |
| CN205051140U (en) * | 2015-10-30 | 2016-02-24 | 安固集团有限公司 | Commutator segment |
| CN207409775U (en) * | 2017-10-25 | 2018-05-25 | 锐奇控股股份有限公司 | Commutator and motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110943353A (en) * | 2019-12-19 | 2020-03-31 | 瑞安市德雅电子有限公司 | Commutator product with reinforcing ring and manufacturing process |
| CN110943353B (en) * | 2019-12-19 | 2024-10-22 | 瑞安市德雅电子有限公司 | Commutator product with reinforcing ring and manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107634414B (en) | 2024-03-15 |
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