CN104079087A - Motor stator having high coil space factor and adopting pressed trapezoidal enamelled wires - Google Patents
Motor stator having high coil space factor and adopting pressed trapezoidal enamelled wires Download PDFInfo
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- CN104079087A CN104079087A CN201410357021.9A CN201410357021A CN104079087A CN 104079087 A CN104079087 A CN 104079087A CN 201410357021 A CN201410357021 A CN 201410357021A CN 104079087 A CN104079087 A CN 104079087A
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- enamelled wire
- stator
- trapezoidal
- motor stator
- insulating paper
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- Manufacture Of Motors, Generators (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The invention provides a motor stator having a high coil space factor and adopting pressed trapezoidal enamelled wires. A piece of slot insulation paper is put in the slot of stator core of the motor stator in S shape, and is 3-5 mm higher than the end face of the stator core; an inner-layer enamelled wire is embedded in the upper part of the S-shaped insulation paper, and an outer-layer enamelled wire is embedded in the lower part of the S-shaped insulation paper; the inner-layer enamelled wire and the outer-layer enamelled wire are both pressed to be trapezoidal externally and bent to be U-shaped. The coil space factor of the motor stator can be up to 82-90%; with the same power, the motor is light in weight and low in heat productivity; the slot insulation paper is S-shaped, so that in the structure is simple and the mounting and dismounting are convenient.
Description
Technical field
The present invention relates to vehicle electric motor field, specially refer to a kind of high copper factor motor stator that adopts the trapezoidal enamelled wire of compacting.
Background technology
At present, its Stator Slots bit architecture of the electric motor of automobile of existing traditional form is complicated, its primary structure as shown in Figure 4, insertion groove insulating paper 1a first in stator core 7a, then embeds internal layer enamelled wire group 2a, and with layer insulation paper, 3a cuts off, embed again cover warnish envelope curve group 4a, pack cover slot paper 5a into, finally insert slot wedge 6a, this structure has following defect:
1, motor coil is artificial embedding, and labour intensity is large, and production efficiency is low, and is difficult to realize mechanical automation production;
2, coil of stator of motor copper factor is low, and all below 75%, motor operational efficiency is low;
3, stator coil end size is high, causes that motor volume is large, weight is large, cost is high.
Summary of the invention
The object of the present invention is to provide a kind of use " S " type slot insulating paper replace conventional motors stator for interlayer, cover slot insulating paper, with the employing of heavy in section trapezoidal enamelled wire replacement enamelled wire group, suppress the high copper factor motor stator of trapezoidal enamelled wire.
For achieving the above object, technical scheme of the present invention is:
A kind of high copper factor motor stator that adopts the trapezoidal enamelled wire of compacting, comprise slot insulating paper, internal layer enamelled wire, cover warnish envelope curve and stator core, in the groove of the stator core of this stator, pack slot insulating paper into, slot insulating paper is dressed up S shape in groove, and slot insulating paper is higher than the end face 3-5 millimeter of stator core, S type insulating paper top is embedded with internal layer enamelled wire, and bottom is embedded with cover warnish envelope curve, to guarantee inside and outside layer enamelled wire mutually insulated and and stator core insulation.
Described internal layer enamelled wire and cover warnish envelope curve all adopt the enamelled wire of special paint film to be pressed into profile and iron core grooved and ladder type shape of the same size through mechanical means; be bent into U-shaped shape back and reverse 1 rule span; from stator core end, insert in order in stator core slot; then carry out end and turn one's head, ectonexine rotates respectively 1/2 front span round about; Finally according to the order of connection, with TIG welding enamelled wire end, realize the connection in series-parallel of coil and connect lead-out wire.
Good effect of the present invention is:
1, enamel insulated round copper wire can be pressed into the ladder type shape matching with stator core grooved with special equipment, after one-shot forming, can directly insert in stator slot;
2, the copper factor of motor stator can be up to 82-90%, and under identical power conditions, motor is lightweight, and caloric value is little;
3, slot insulating paper adopts serpentine shape, simple in structure, easy to loading and unloading, uses special equipment one-shot forming, insertion;
4, utilize mechanical automation to produce, greatly reduce labour intensity, improved production efficiency.
Accompanying drawing explanation
The stator slot partial structurtes schematic diagram of the high copper factor motor stator of Fig. 1, the trapezoidal enamelled wire of employing compacting;
The stator faces schematic diagram of the high copper factor motor stator of Fig. 2, the trapezoidal enamelled wire of employing compacting;
Fig. 3, suppress trapezoidal enamelled wire stator general assembly schematic diagram;
Fig. 4, existing conventional motors Stator Slots structure reference view;
Fig. 5, electric efficiency be schematic diagram relatively.
Embodiment
Below in conjunction with accompanying drawing, 1-3 further illustrates the specific embodiment of the present invention.
Referring to Fig. 1-3, first slot insulating paper 1 is converted in the groove of serpentine shape insertion stator core 4, then with intercepting corresponding length enamelled wire on special equipment and divesting two ends paint film, be bent into the grooved and the ladder type shape of the same size that are pressed into after " U " type with stator core 4, two ends are reversed 1 rule span and are formed internal layer enamelled wire 2 and cover warnish envelope curve 3, from stator core end, insert in order again the skin of the internal layer of stator core 4 grooves and the rule span of being separated by, U-shaped line quantity is identical with the groove number of stator core 4, insert successively in order all U-shaped lines, then the end of all internal layer enamelled wires 2 and all cover warnish envelope curves 3 is reversed respectively to 1/2 span round about, become stator coil 5, finally according to the order of connection, with TIG welding enamelled wire end, realize the connection in series-parallel of coil and connect lead-out wire.Thereby form a complete motor stator.
Example detection result: the designing permanent-magnet synchronous motor that the stator core external diameter of now take is 230 and test data are example explanation:
The motor of the present patent application and traditional design motor data comparison (under same application condition)
| Data | New design motor | Traditional design motor | Relatively |
| Stator copper factor % | 86.4 | 53.3 | +33.1 |
| Motor stator rotor weight kg | 35.64 | 44.48 | -8.84 |
| Unit Weight power output KW/kg | 3.37 | 2.70 | +0.67 |
The efficiency of two kinds of motors is relatively referring to Fig. 5.
The above is only non-limiting execution mode of the present invention; for the person of ordinary skill of the art; not departing from the invention design and not making under the prerequisite of creative work, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (2)
1. one kind adopts the high copper factor motor stator of suppressing trapezoidal enamelled wire, comprise slot insulating paper (1), internal layer enamelled wire (2), cover warnish envelope curve (3) and stator core (4), it is characterized in that: in the groove of stator core (4), pack slot insulating paper (1) into, slot insulating paper (1) is dressed up S shape in groove, and slot insulating paper (1) is higher than the end face 3-5 millimeter of stator core (4), S type insulating paper (1) top is embedded with internal layer enamelled wire (2), and bottom is embedded with cover warnish envelope curve (3).
According to claim 1 a kind of adopt compacting trapezoidal enamelled wire high copper factor motor stator, it is characterized in that: described internal layer enamelled wire (2) is all pressed into cover warnish envelope curve (3) the ladder type shape that profile is consistent with iron core grooved, and is bent into U-shaped shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410357021.9A CN104079087A (en) | 2014-07-25 | 2014-07-25 | Motor stator having high coil space factor and adopting pressed trapezoidal enamelled wires |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410357021.9A CN104079087A (en) | 2014-07-25 | 2014-07-25 | Motor stator having high coil space factor and adopting pressed trapezoidal enamelled wires |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104079087A true CN104079087A (en) | 2014-10-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410357021.9A Pending CN104079087A (en) | 2014-07-25 | 2014-07-25 | Motor stator having high coil space factor and adopting pressed trapezoidal enamelled wires |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104079087A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953726A (en) * | 2015-06-17 | 2015-09-30 | 安徽省旌德县江南机电配件有限公司 | Magnetic slot wedge of motor |
| CN109149803A (en) * | 2017-06-28 | 2019-01-04 | 天津市松正电动汽车技术股份有限公司 | A kind of flat wire motor stator slot insulation structure and its process equipment, processing technology |
| CN109950988A (en) * | 2017-12-21 | 2019-06-28 | 长城汽车股份有限公司 | Motor stator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002136016A (en) * | 2000-10-19 | 2002-05-10 | Denso Corp | Brushless ac generator |
| CN204030747U (en) * | 2014-07-25 | 2014-12-17 | 新动力电机（荆州）有限公司 | A kind of high copper factor motor stator adopting the trapezoidal enamelled wire of compacting |
-
2014
- 2014-07-25 CN CN201410357021.9A patent/CN104079087A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002136016A (en) * | 2000-10-19 | 2002-05-10 | Denso Corp | Brushless ac generator |
| CN204030747U (en) * | 2014-07-25 | 2014-12-17 | 新动力电机（荆州）有限公司 | A kind of high copper factor motor stator adopting the trapezoidal enamelled wire of compacting |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953726A (en) * | 2015-06-17 | 2015-09-30 | 安徽省旌德县江南机电配件有限公司 | Magnetic slot wedge of motor |
| CN109149803A (en) * | 2017-06-28 | 2019-01-04 | 天津市松正电动汽车技术股份有限公司 | A kind of flat wire motor stator slot insulation structure and its process equipment, processing technology |
| CN109950988A (en) * | 2017-12-21 | 2019-06-28 | 长城汽车股份有限公司 | Motor stator |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141001 |