CN104242563A - Commutating pole structure of large direct current motor - Google Patents
Commutating pole structure of large direct current motor Download PDFInfo
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- CN104242563A CN104242563A CN201410491267.5A CN201410491267A CN104242563A CN 104242563 A CN104242563 A CN 104242563A CN 201410491267 A CN201410491267 A CN 201410491267A CN 104242563 A CN104242563 A CN 104242563A
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- coil
- commutating pole
- pole structure
- commutation
- adopts
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Links
- 239000011888 foil Substances 0.000 claims abstract description 7
- 238000009413 insulation Methods 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical group [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- SPRWRHGFNYWFCI-UHFFFAOYSA-N argon copper Chemical compound [Ar].[Cu] SPRWRHGFNYWFCI-UHFFFAOYSA-N 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 238000005482 strain hardening Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Dc Machiner (AREA)
Abstract
The invention discloses a commutating pole structure of a large direct current motor. The commutating pole structure comprises a commutating pole coil, a commutating pole iron core, a coil support, laminated foil, cushion blocks, a screw and an insulating plate. The portions between turns of the coil are stuffed up by the cushion blocks, the commutating pole coil is fixed by the coil support, the commutating pole coil and the coil support are separated by the cushion blocks and lapped by the laminated foil, the coil support is fixed to the commutating pole iron core through the screw, and the coil support and the commutating pole iron core are separated by the insulating plate. The commutating pole structure can solve the problems that an existing commutating pole structure of the large direct current motor is difficult to machine and complex and is more compact and more reliable in design, and the insulating property and the mechanical strength of a commutating pole are improved.
Description
Technical field
The invention belongs to machine field, relate to a kind of commutating pole structure of large-scale dc motor.
Background technology
The binding-type commutating pole structure of the medium-sized DC motor of Z315 ~ Z710 is: commutation coil edge-wind, be divided into upper and lower two, the epoxy rods of crossing iron core is adopted to fix between two coils, unshakable in one's determination with mounting coil after, adopt the colligation of insulated binding band, then overall VPI dipping lacquer, to ensure coil and globality unshakable in one's determination.
The presser type commutating pole structure of Z800 ~ Z1000 DC motor is: commutation coil edge-wind, is divided into upper and lower two, and adopt the cylinder steel pin crossing iron core to fix above coil, below pressing plate is fixed, and pressing plate is fixed by screws in bottom unshakable in one's determination; For increasing the constant intensity of coil further, cylinder steel pin also can adopt the lamination structure of band boss to replace.
The capacity of large-scale dc motor and electric current are much larger than Z series direct current machine, when break down due to electric-control system or motor instantaneous short circuit time, commutation coil can flow through large impulse current, now the magnetic pull that is subject to of commutation coil is much larger than Z series direct current machine, above-mentioned two kinds of commutating pole structures have been difficult to ensure coil non-warping distortion when heavy current impact all, accidents caused; Be limited to the installing space of commutating pole, edge-wind formula commutation coil cannot meet the demands simultaneously.
The commutating pole structure of current large-scale dc motor, as depicted in figs. 1 and 2: Fig. 1 is for flat around rectangle commutation coil schematic diagram, and Fig. 2 is the schematic diagram of this kind of commutating pole structure.This kind of commutating pole structure adopts single channel cascaded structure: commutation coil thin copper belt coiling, and coil adopts and crosses unshakable in one's determination being bolted on compole core.Have following shortcoming: 1, set bolt passes across coil and iron core, number that commutation coil is bored a hole is more, is unfavorable for insulation, insulation against ground poor performance.2, commutation coil skin directly contacts with wind path, and good heat dissipation, but internal layer weak heat-dissipating, can cause commutating pole temperature rise.3, the screw rod through unshakable in one's determination is more, commutating pole needs perforate more, reduces the mechanical strength of commutating pole.4, commutating pole part is many, and assembling is complicated.5, commutating pole takies larger space concerning stator, is unfavorable for the layout of stator space.
Summary of the invention
The present invention is directed to the defect of current large-scale dc motor commutating pole structure, a kind of commutating pole structure of large-scale dc motor is provided, to solve original structure processing difficulties, baroque problem, structural design is more compact, reliable, and improves insulation property and the mechanical strength of commutating pole.
Technical scheme of the present invention is as follows:
A commutating pole structure for large-scale dc motor, comprises commutation coil, compole core, coil brace, composite insulating foil, cushion block, screw and insulation board; Cushion block jam-pack is used between coil turn, commutation coil coil brace is fixed, and separates between commutation coil and coil brace with cushion block, and wrapped with composite insulating foil, coil brace is screwed on compole core, separates between coil brace and compole core with insulation board.
Its further technical scheme is: described commutation coil is welded type square coil, adopts the copper strips cold-working of stretch forming to become U-shaped rear assembly welding; Welding adopts silver-bearing copper argon arc welding.
Its further technical scheme is: described coil brace adopts steel band to make, and adopts antimagnetic material to make.
Its further technical scheme is: described commutation coil itself does not make insulation processing.
Advantageous Effects of the present invention is:
Compared with existing structure, commutating pole structure of the present invention has the following advantages:
1, structure is more simple, compact, have compressed the stator space shared by commutation coil further, saves material.
2, the every circle of commutation coil all directly contacts with wind path, and area of dissipation is large, and between each circle of commutation coil, interval is very large simultaneously, and radiating condition is good, and cooling effect is fine, is beneficial to and reduces commutating pole temperature rise.
3, on compole core, fixing hole does not drill, and has better mechanical strength.
4, commutating pole has better insulation property.
5, commutating pole assembling is simple, and handled easily saves man-hour.
Advantage of the present invention provides in the description of embodiment part below, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Fig. 1 is flat around rectangle commutation coil schematic diagram.
Fig. 2 adopts the flat schematic diagram around the commutating pole structure of rectangle commutation coil.
Fig. 3 is front view of the present invention.
Fig. 4 is right view of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
As shown in Figure 3, Figure 4, commutating pole structure of the present invention adopts two-way parallel-connection structure, and commutation coil 1 is welded type square coil, adopts the copper strips cold-working of stretch forming to become U-shaped rear assembly welding; Welding adopts silver-bearing copper argon arc welding, makes coil have good mechanical strength and electric conductivity; This kind of coil processing and fabricating is simple and convenient, does not need winding mould.Commutation coil 1 turn-to-turn adopts cross-over block 5 jam-pack, with hold-in winding turn-to-turn spacing.The U-shaped coil brace 3 of commutation coil 1 is fixed, and coil brace 3 screw 6 is fixed on compole core 2.Coil brace 3 adopts steel band to make, and has higher mechanical strength; In order to avoid coil brace 3 is on the impact of compole circuit, coil brace 3 adopts antimagnetic material to make.Separate with insulation board 7 between coil brace 3 and compole core 2, between commutation coil 1 and coil brace 3, adopt cushion block 5 to separate, and wrapped with composite insulating foil 4, to strengthen the insulation property of commutating pole.Commutation coil 1 itself does not make insulation processing, is convenient to heat radiation.Commutation coil 1 is close below with compole core 2 as far as possible below, makes coil closer to armature surface, thus reduces leakage field.
Above-described is only the preferred embodiment of the present invention, the invention is not restricted to above embodiment.Be appreciated that the oher improvements and changes that those skilled in the art directly derive without departing from the basic idea of the present invention or associate, all should think and be included within protection scope of the present invention.
Claims (4)
1. a commutating pole structure for large-scale dc motor, is characterized in that: comprise commutation coil (1), compole core (2), coil brace (3), composite insulating foil (4), cushion block (5), screw (6) and insulation board (7); With cushion block (5) jam-pack between coil turn, commutation coil (1) coil brace (3) is fixed, separate with cushion block (5) between commutation coil (1) and coil brace (3), and it is wrapped with composite insulating foil (4), coil brace (3) screw (6) is fixed on compole core (2), separates between coil brace (3) and compole core (2) with insulation board (7).
2. the commutating pole structure of large-scale dc motor according to claim 1, is characterized in that: described commutation coil (1) is welded type square coil, adopts the copper strips cold-working of stretch forming to become U-shaped rear assembly welding; Welding adopts silver-bearing copper argon arc welding.
3. the commutating pole structure of large-scale dc motor according to claim 1, is characterized in that: described coil brace (3) adopts steel band to make, and adopts antimagnetic material to make.
4. the commutating pole structure of large-scale dc motor according to claim 1, is characterized in that: described commutation coil (1) itself does not make insulation processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410491267.5A CN104242563A (en) | 2014-09-23 | 2014-09-23 | Commutating pole structure of large direct current motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410491267.5A CN104242563A (en) | 2014-09-23 | 2014-09-23 | Commutating pole structure of large direct current motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104242563A true CN104242563A (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410491267.5A Pending CN104242563A (en) | 2014-09-23 | 2014-09-23 | Commutating pole structure of large direct current motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN104242563A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429415A (en) * | 2015-12-23 | 2016-03-23 | 中电电机股份有限公司 | Commutating pole structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59156134A (en) * | 1983-02-23 | 1984-09-05 | Hitachi Ltd | How to fix the commutating coil of a DC machine |
| JPS59213248A (en) * | 1983-05-18 | 1984-12-03 | Hitachi Ltd | Fixing device for commutating pole coil of DC machine |
| SU1275650A1 (en) * | 1985-01-30 | 1986-12-07 | Харьковский политехнический институт им.В.И.Ленина | Additional pole of d.c.electric machine powered by pulsing current |
| JPH02197228A (en) * | 1989-01-26 | 1990-08-03 | Toshiba Corp | Commutating pole of rotating electric machine |
| CN102122864A (en) * | 2010-12-06 | 2011-07-13 | 无锡华天电气科技有限公司 | Commutating pole structure for direct current motor |
-
2014
- 2014-09-23 CN CN201410491267.5A patent/CN104242563A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59156134A (en) * | 1983-02-23 | 1984-09-05 | Hitachi Ltd | How to fix the commutating coil of a DC machine |
| JPS59213248A (en) * | 1983-05-18 | 1984-12-03 | Hitachi Ltd | Fixing device for commutating pole coil of DC machine |
| SU1275650A1 (en) * | 1985-01-30 | 1986-12-07 | Харьковский политехнический институт им.В.И.Ленина | Additional pole of d.c.electric machine powered by pulsing current |
| JPH02197228A (en) * | 1989-01-26 | 1990-08-03 | Toshiba Corp | Commutating pole of rotating electric machine |
| CN102122864A (en) * | 2010-12-06 | 2011-07-13 | 无锡华天电气科技有限公司 | Commutating pole structure for direct current motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429415A (en) * | 2015-12-23 | 2016-03-23 | 中电电机股份有限公司 | Commutating pole structure |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20141224 |