CN203933176U - The Water-filled Type Submersible Motors that a kind of stock utilization is high - Google Patents
The Water-filled Type Submersible Motors that a kind of stock utilization is high Download PDFInfo
- Publication number
- CN203933176U CN203933176U CN201420331810.0U CN201420331810U CN203933176U CN 203933176 U CN203933176 U CN 203933176U CN 201420331810 U CN201420331810 U CN 201420331810U CN 203933176 U CN203933176 U CN 203933176U
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- China
- Prior art keywords
- stator core
- steel sheet
- silicon steel
- wire casing
- stator
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 33
- 238000004804 winding Methods 0.000 claims abstract description 24
- 210000003734 kidney Anatomy 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052802 copper Inorganic materials 0.000 abstract description 10
- 239000010949 copper Substances 0.000 abstract description 10
- 239000004020 conductor Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010200 validation analysis Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000547 structure data Methods 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The utility model relates to the Water-filled Type Submersible Motors that a kind of stock utilization is high.Comprise stator, rotor, casing and thrust bearing; Wherein stator comprises the stator core being made up of stator core silicon steel sheet and wears around the water proof winding wires in the wire casing of hollow out in stator core, near on stator core silicon steel sheet in the uniform wire casing that offers in circle contour place; Described wire casing is wide kidney slot; The Wei Chang limit, limit of wire casing both sides, with adjacent one end of excircle configuration of stator core silicon steel sheet be bottom land, with adjacent one end of interior circle contour of stator core silicon steel sheet be notch.Water proof winding wires of the present utility model is regularly arranged in groove, and copper factor is brought up to more than 90%, has improved the utilance of material; Electric machine rotor weight is declined; Reduce waterpower friction loss and conductor ohmic loss and obviously improved; Reduce the load of thrust bearing and improve critical whirling speed, improving whole aircraft reliability.
Description
Technical field
The utility model belongs to submersible motor technical field, is specifically related to Water-filled Type Submersible Motors.
Background technology
Motor is made up of parts such as stator, rotor and bearing with end covers, and wherein Electromagnetic Design is still crucial.On the stator core silicon steel sheet of motor, on the shape of groove and rotor core silicon steel sheet, the shape of groove design has determined the technical performance of motor.Traditional Water-filled Type Submersible Motors in Electromagnetic Design on stator core silicon steel sheet the shape of groove the parallel teeth design of the facewidth, stator slot shape such as all to adopt be up big and down small trapezoidal, see Fig. 4.Can make like this stator core silicon steel sheet in a series, only, with a secondary punching groove shaped mould, be applicable to multiple power requirements, make stator core silicon steel sheet versatility aborning good.But what adopt due to the stator winding line of Water-filled Type Submersible Motors is to penetrate the threading mode in stator core silicon steel film trap with the water proof winding wires of main insulation, water proof winding wires irregular arrangement with main insulation in stator core silicon steel film trap, see Fig. 5, the duty ratio of winding wire sectional area in groove must be controlled at below 70%, otherwise performance difficulty in threading technique, and the insulating barrier 9 of easy damaged water proof winding wires.To 10kV high pressure Water-filled Type Submersible Motors, due to the increase of water proof winding wires main insulation thickness, in water proof winding wires, the duty ratio of copper core 8 in stator slot is only 8～30% especially, and electrical steel sheet utilance extreme difference causes the significant wastage of raw material resources.Along with market constantly increases the demand of 10kV high pressure Water-filled Type Submersible Motors, the drawback of this traditional design highlights.Mainly contain following some: 1. because the duty ratio of copper conductor in waterproof wire in the groove of stator core silicon steel sheet is low, every kw of power motor manufacturing cost is high, with raw material resources wastes such as copper, iron; 2. because the stator and rotor cores length of motor is long, the conductor ohmic loss that rotor rotates the waterpower friction loss that causes and stator winding is high, and the efficiency of corresponding motor is obviously on the low side; 3. because the weight of the rotor portion of motor is large, the rotation system load of motor increases, and has reduced thrust bearing operational reliability, brings hidden danger therefore to the safe operation of motor; 4. because the rotation system load of motor increases, the amount of deflection of rotating shaft strengthens, and the critical whirling speed of axle system declines, and makes the working speed of motor can not avoid safely the critical whirling speed of rotation system, reduces complete machine reliability of operation.
Above 4 drawbacks of being not only Water-filled Type Submersible Motors Electromagnetic Design have restricted the design of Water-filled Type Submersible Motors simultaneously, become the maximize bottleneck of design of Water-filled Type Submersible Motors.
Utility model content
In order to reduce the volume of Water-filled Type Submersible Motors, cut down Water-filled Type Submersible Motors every kilowatt of consumption of materials, reduce costs, improve the duty ratio of water proof winding wires in stator slot and be one of the most direct effective ways that improve every kilowatt of stock utilization; Therefore the utility model provides the Water-filled Type Submersible Motors that a kind of stock utilization is high.
The Water-filled Type Submersible Motors that a kind of stock utilization is high comprises stator, rotor, casing and thrust bearing; Wherein stator comprises the stator core being made up of stator core silicon steel sheet and wears around the water proof winding wires in the wire casing of hollow out in stator core, near on stator core silicon steel sheet in the uniform wire casing that offers in circle contour place; Described wire casing is wide kidney slot; The Wei Chang limit, limit of wire casing 7 both sides, with adjacent one end of excircle configuration of stator core silicon steel sheet be bottom land, with adjacent one end of interior circle contour of stator core silicon steel sheet be notch.
Spacing between described notch and described interior circle contour is 1-1.5 mm.
The width of described wire casing is greater than described water proof winding wires diameter 0.4-0.6 mm.
The both sides of described notch are provided with symmetrical groove shoulder, and described groove shoulder is hypotenuse shape, and the width b of groove shoulder is 3-5mm, and angle [alpha] is 30 degree.
Useful technique effect of the present utility model embodies in the following areas:
1. adopt the stator, rotor of the Water-filled Type Submersible Motors that improves stock utilization because of the minimizing of core length, raw material (silicon steel sheet, rotor bar etc.) weight declines obviously, and in winding wire, effectively the duty ratio of material copper in stator slot improves.The minimizing of core length, has reduced the waterpower friction loss linear with core length and rotor copper conductor ohmic loss, and the performance index of motor most critical--efficiency obviously improves;
2. the utility model only need change the diel of wire casing on stator core silicon steel sheet, do not change the original structure of Water-filled Type Submersible Motors, make the interior water proof winding wires of wire casing of stator core silicon steel sheet neat and orderly, improve the duty ratio of waterproof wire in stator slot, copper factor is brought up to more than 90%; Improve every kilowatt of stock utilization of motor, reduced the volume of Water-filled Type Submersible Motors;
3. the utility model has reduced the load of thrust bearing, has improved thrust bearing operational reliability on the one hand, has improved on the other hand the critical whirling speed of rotatable parts, and submersible motor complete machine property safe and reliable to operation is increased;
4. rotation system load of the present utility model obviously reduces, and the amount of deflection of rotating shaft reduces, and the critical whirling speed of axle system rises, and strengthens complete machine reliability of operation;
5. the utility model electric machine rotor core length shortens, and has reduced waterpower friction loss and the conductor ohmic loss of electric machine rotation system, thereby has improved the efficiency of Water-filled Type Submersible Motors.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is stator core silicon steel structure schematic diagram.
Fig. 3 is the I enlarged drawing of Fig. 2.
Fig. 4 is the stator core silicon steel structure schematic diagram of traditional design.
Fig. 5 is the I enlarged drawing of Fig. 4.
Sequence number in upper figure: stator 1, rotor 2, thrust bearing 3, stator core silicon steel sheet 4, stator core 5, water proof winding wires 6, wire casing 7, copper core 8, insulating barrier 9, excircle configuration 41, interior circle contour 42, long limit 43, bottom land 44, notch 45.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is further described.
Embodiment 1
Referring to Fig. 1, the Water-filled Type Submersible Motors of 1200kW, 10kV comprises stator 1, rotor 2, casing and thrust bearing 3.Stator 1 comprises the stator core 5 being made up of stator core silicon steel sheet 4 and wears around the water proof winding wires 6 in the wire casing 7 of hollow out in stator core.Referring to Fig. 2, the uniform wire casing 7 that offers in nearly interior circle contour 42 places on stator core silicon steel sheet 4, wire casing 7 is wide kidney slot; Referring to Fig. 3, the Wei Chang limit, limit 43 of wire casing 7 both sides, with adjacent one end of excircle configuration 41 of stator core silicon steel sheet 4 be bottom land 44, with adjacent one end of interior circle contour 42 of stator core silicon steel sheet 4 be notch 45.The width of wire casing 7 is greater than water proof winding wires 6 diameter 0.4 mm, and the spacing between notch 45 and interior circle contour 42 is 1mm, and the both sides of notch 45 are provided with symmetrical groove shoulder, and groove shoulder is hypotenuse shape, and the width b of groove shoulder is 3mm, and angle [alpha] is 30 degree.
The length of stator core and the length of rotor core are 850mm.
The utility model and traditional design are to such as table 1:
As seen from Table 1, the water proof winding wires 6 of the present embodiment 1 is interior regularly arranged at wire casing 7, and copper factor is brought up to more than 90%, and the threading technique of waterproof wire is guaranteed.The duty ratio of water proof winding wires 6 in stator slot improves 29%, and core length reduces 430mm, the therefore silicon steel sheet consumption decline 565kg of stator and rotor, and complete machine copper material consumption reduces 81kg.The minimizing of core length simultaneously, the remarkable result bringing is to have reduced waterpower friction loss and conductor ohmic loss, thereby efficiency has obviously improved 1.6 percentage points.The important performance index of some other motor all promote to some extent, and power factor has improved 0.06, and starting torque multiple increases by 0.26, and breakdown torque multiple promotes 0.45.Electric machine rotation part weight declines 22.7%, reduces the load of thrust bearing and improves critical whirling speed, improves whole aircraft reliability, and these have obtained good validation in practice.
Embodiment 2:
The Water-filled Type Submersible Motors structure of 2000kW, 10kV is with embodiment 1, and just concrete structure data have difference.
With traditional design to such as table 2:
As seen from Table 2, the water proof winding wires 6 of the present embodiment 2 is interior regularly arranged at wire casing 7, and copper factor is brought up to more than 90%, and the threading technique of waterproof wire is guaranteed.The duty ratio of water proof winding wires 6 in stator slot improves 21.7%, and core length reduces 350mm, the therefore silicon steel sheet consumption decline 685kg of stator and rotor, and complete machine copper material consumption reduces 54kg.The minimizing of core length simultaneously, the remarkable result bringing is to have reduced waterpower friction loss and conductor ohmic loss, thereby efficiency has obviously improved 1.5 percentage points.The important performance index of some other motor all promote to some extent, and power factor has improved 0.03, and starting torque multiple increases by 0.07, and breakdown torque multiple promotes 0.14.Electric machine rotation part weight declines 21%, reduces the load of thrust bearing and improves critical whirling speed, improves whole aircraft reliability, and these have obtained good validation in practice.
Claims (4)
1. the high Water-filled Type Submersible Motors of stock utilization, comprises stator, rotor, casing and thrust bearing; Wherein stator comprises the stator core being made up of stator core silicon steel sheet and wears around the water proof winding wires in the wire casing of hollow out in stator core, the uniform wire casing that offers in circle contour place near on stator core silicon steel sheet, is characterized in that: described wire casing is wide kidney slot; The Wei Chang limit, limit of wire casing both sides, with adjacent one end of excircle configuration of stator core silicon steel sheet be bottom land, with adjacent one end of interior circle contour of stator core silicon steel sheet be notch.
2. the high Water-filled Type Submersible Motors of a kind of stock utilization according to claim 1, is characterized in that: the spacing between described notch and described interior circle contour is 1-1.5 mm.
3. the high Water-filled Type Submersible Motors of a kind of stock utilization according to claim 1, is characterized in that: the width of described wire casing is greater than described water proof winding wires diameter 0.4-0.6 mm.
4. the high Water-filled Type Submersible Motors of a kind of stock utilization according to claim 1, is characterized in that: the both sides of described notch are provided with symmetrical groove shoulder, and described groove shoulder is hypotenuse shape, and the width b of groove shoulder is 3-5mm, and angle [alpha] is 30 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420331810.0U CN203933176U (en) | 2014-06-20 | 2014-06-20 | The Water-filled Type Submersible Motors that a kind of stock utilization is high |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420331810.0U CN203933176U (en) | 2014-06-20 | 2014-06-20 | The Water-filled Type Submersible Motors that a kind of stock utilization is high |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203933176U true CN203933176U (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420331810.0U Expired - Lifetime CN203933176U (en) | 2014-06-20 | 2014-06-20 | The Water-filled Type Submersible Motors that a kind of stock utilization is high |
Country Status (1)
| Country | Link |
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| CN (1) | CN203933176U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037960A (en) * | 2014-06-20 | 2014-09-10 | 合肥恒大江海泵业股份有限公司 | Water-filled submersible motor high in material utilization rate |
-
2014
- 2014-06-20 CN CN201420331810.0U patent/CN203933176U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037960A (en) * | 2014-06-20 | 2014-09-10 | 合肥恒大江海泵业股份有限公司 | Water-filled submersible motor high in material utilization rate |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |