CN205123431U - Stator, segmental type permanent magnet motor and totally closed frequency conversion compressor - Google Patents
Stator, segmental type permanent magnet motor and totally closed frequency conversion compressor Download PDFInfo
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- CN205123431U CN205123431U CN201520881091.4U CN201520881091U CN205123431U CN 205123431 U CN205123431 U CN 205123431U CN 201520881091 U CN201520881091 U CN 201520881091U CN 205123431 U CN205123431 U CN 205123431U
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- permanent magnet
- magnet motor
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- 238000006243 chemical reaction Methods 0.000 title abstract description 8
- 238000004804 winding Methods 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 238000005057 refrigeration Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 210000000515 tooth Anatomy 0.000 abstract 2
- 230000005389 magnetism Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 229930091051 Arenine Natural products 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003584 silencer Effects 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a stator, segmental type permanent magnet motor and totally closed frequency conversion compressor, the stator includes stator core, and stator core's central authorities have offered the rotor and have put into the groove, and stator core is last to put into the groove around the rotor and be provided with a plurality of stator tooths, has offered the stator notch between the two adjacent stator tooths, and the bottom central authorities of each stator tooth have offered puts into the communicating opening in groove with the rotor, leaves the clearance between the opening both sides of the bottom of each stator tooth and the base both sides of stator notch respectively, a segmental type permanent magnet motor, includes rotor and as above the stator, totally closed frequency conversion compressor reaches as above including compresser cylinder seat, bent axle segmental type permanent magnet motor, each apex angle punishment of stator core do not is provided with positioning hole, the stator links to each other with the compresser cylinder seat, rotor core's both sides are respectively through the riveting of multi -disc air gap pd, the rotor passes through the rotor shaft hole and links to each other with the bent axle. The utility model discloses the noise and the vibration of motor have been reduced effectively.
Description
Technical Field
The utility model belongs to the technical field of the frequency conversion compressor, especially, relate to a stator, partial shipment formula permanent-magnet machine and totally closed frequency conversion compressor.
Background
With the widespread use of refrigerators and air conditioners in the life of people, the noise problem of these household electrical appliances is more and more emphasized. In order to meet the environmental requirements, it is necessary to take effective measures to control the noise of the compressor. The existing compressor has a complex noise source, and has three main aspects: electromagnetic noise, mechanical noise, and airflow pulsation noise.
The noise reduction approach of the refrigeration compressor mainly comprises the steps of improving the processing precision, designing a reasonable runner and adopting a high-efficiency silencer, the technical development reaches a considerable level so far, and the cost for continuously reducing one decibel is very expensive. The vibration noise of part of the compressors is reduced by adding corresponding shock absorption rubber pads; part of the compressor can be improved on the shell of the compressor, namely a double-layer sound insulation shell is designed or the shell is directly thickened; part of the compressor will be added with a silencer to change the noise of the airflow. Such a variety of methods have a problem that the manufacturing cost is increased, and the electromagnetic noise generated by the motor, which is a main component of the refrigeration compressor, is not completely eliminated.
The motor is composed of a stator, a stator winding and a rotor, the performance of the compressor is improved directly related to the efficiency of the motor, the motor is a power part and is used for dragging a crankshaft of the compressor to rotate, so that the vibration noise in the motor and the compressor is inseparable, and the problems of vibration and noise of different rotating speeds of the variable frequency motor are particularly obvious due to the requirement of speed regulation.
Therefore, how to improve the split permanent magnet motor itself to reduce noise and achieve cost control is an urgent technical problem to be solved in the field.
SUMMERY OF THE UTILITY MODEL
The utility model provides a weak point of avoiding above-mentioned prior art to exist provides a stator, partial shipment formula permanent-magnet machine and totally closed frequency conversion compressor.
The utility model discloses the technical scheme who adopts does:
the utility model provides a stator, includes stator core, stator core's central authorities have seted up the rotor and have put the groove, stator core is last to put the groove around the rotor and is provided with a plurality of stator teeth, has seted up the stator notch between two adjacent stator teeth, the bottom central authorities of each stator tooth have seted up put the communicating opening in groove with the rotor, leave the clearance between the opening both sides of the bottom of each stator tooth and the base both sides of stator notch respectively, and the size in this clearance increases in proper order from opening both sides to stator tooth's top edge.
The bottom of each stator slot is closed.
And the edge parts of the stator teeth positioned at two sides of the through opening are bevel edges.
The stator still includes insulating paper and insulating skeleton, and insulating paper inserts and adorns in stator notch, and insulating skeleton sets up between stator core's outward flange and stator tooth, and there are nine stator notches.
The stator further comprises a stator winding and a stator wiring terminal, the stator winding comprises U, V, W three-phase windings, the U, V, W three-phase windings are centralized in winding and embedding, the U, V, W three-phase windings are enameled wires, and outgoing lines of the wiring terminal are copper wires.
The stack height of the stator core is 25mm, 30mm and 35mm along the axial direction of the stator core in sequence.
The utility model also discloses a partial shipment formula permanent-magnet machine, including rotor and as above-mentioned stator, the rotor includes rotor core and magnet steel, has seted up the rotor shaft hole in the middle of rotor core, has seted up a plurality of embedded rotor grooves around the rotor shaft hole on the rotor core, and the magnet steel cartridge is in the rotor groove, has seted up a plurality of rivet holes around the rotor shaft hole on the rotor core, and the both ends of rotor core are provided with the multi-disc magnetism sheet respectively, and rotor core links to each other through the rivet with each magnetism sheet; the rotor core is inserted in the rotor placing groove, and the minimum distance between the rotor core and the inner wall of the rotor placing groove in the circumferential direction is 0.45 mm.
The number of the rotor grooves is six, and the cross section of each rotor groove is U-shaped.
The magnetic steel is ferrite, and the stack height of the rotor core is 30mm, 35mm and 40mm in sequence along the axial direction of the rotor core.
The utility model also discloses a totally closed frequency conversion compressor, reach as above including compressor cylinder block, bent axle partial shipment formula permanent-magnet motor, each apex angle punishment of stator core is provided with positioning hole respectively, and the stator links to each other with the compressor cylinder block, and the rotor passes through the rotor shaft hole and links to each other with the bent axle.
Since the technical scheme is used, the utility model discloses the beneficial effect who gains does:
1. the utility model provides a hypotenuse cutting processing has been adopted at the top of stator notch, has formed inhomogeneous smell from this, has reduced the noise and the vibration of motor effectively, just the utility model provides an electronic structure is simple, simple to operate, low in manufacturing cost, easy batch production.
2. The utility model discloses the winding of well stator adopts concentrated wire-wound formula, has reduced tip resistance, has improved production efficiency.
3. The rotor of the split permanent magnet motor adopts a U-shaped embedded design, the magnetic steel is easy to insert and does not need to be glued, the assembly is easier, and the magnetizing efficiency is higher; in addition, the magnetic steel is embedded, so that the magnetic steel is easy to wind and assemble and difficult to demagnetize, the problem that the fixed part of the magnetic steel is firm and easy to slide off under the high-speed condition can be solved, and the production cost is saved.
4. The utility model discloses well partial shipment formula permanent magnet motor's deciding, rotor structure adopt 6 utmost points 9 slots types, and the number of poles of motor increases, and low-speed time variable frequency controller is easy to control, has improved the low-speed performance.
5. The utility model provides a refrigerant compressor is fit for wide rotational speed operation, and harmonic content is few, and the rotational speed is undulant little during the low-speed.
Drawings
Fig. 1 is a schematic structural diagram of the middle stator of the present invention.
Fig. 2 is a schematic structural diagram of the stator core of the present invention.
Fig. 3 is a schematic view of an exploded structure of the rotor of the present invention.
Fig. 4 is a schematic structural diagram of the rotor core of the present invention.
Fig. 5 is a schematic structural view of the fully-enclosed variable frequency refrigeration compressor of the present invention.
Wherein,
1. stator core 2, insulating skeleton 3, positioning through hole 4, insulating paper 5, stator tooth 6, stator notch 7, opening 8, hypotenuse 9, rotor imbedding groove 10, rotor core 11, magnetic isolation sheet 12, rotor groove 13, rivet hole 14, rotor shaft hole 15, bent axle 16, compressor cylinder block
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments, but the present invention is not limited to these embodiments.
As shown in fig. 1 and 2, a stator includes a stator core 1, a rotor insertion slot 9 is formed in the center of the stator core 1, nine stator teeth 5 are arranged on the stator core 1 around the rotor insertion slot 9, stator slots 6 are formed between two adjacent stator teeth 5, that is, there are nine stator slots 6, the bottom of each stator slot 6 is closed, a through opening 7 communicated with the rotor insertion slot 9 is formed in the center of the bottom of each stator tooth 5, the edge portions of each stator tooth 5 located at two sides of the through opening 7 are bevel edges 8, gaps are respectively left between two sides of the through opening 7 at the bottom of each stator tooth 5 and two sides of the bottom edge of the stator slot 6, and the size of the gap is increased from two sides of the through opening to the top edge of the stator tooth 5; the stack height of the stator core 1 is 25mm, 30mm and 35mm along the axial direction of the stator core in sequence.
The stator further comprises insulating paper 4 and an insulating framework 2, the insulating paper 4 is inserted into the stator notch 6, and the insulating framework 2 is arranged between the outer edge of the stator iron core 1 and the stator teeth 5; the stator further comprises a stator winding and a stator wiring terminal, the stator winding comprises U, V, W three-phase windings, the U, V, W three-phase windings are centralized in winding and embedding, the U, V, W three-phase windings are enameled wires, the U, V, W three-phase windings are E-level in insulation grade, and outgoing lines of the wiring terminals are copper wires.
As shown in fig. 1 to fig. 4, the utility model also discloses a partial shipment formula permanent-magnet machine, including the rotor and as above the stator, the rotor includes rotor core 10 and magnet steel, rotor shaft hole 14 has been seted up to rotor core 10's central authorities, rotor core 10 goes up and has seted up six cross-sections around rotor shaft hole 14 and all be the embedded rotor groove 12 of U type, the magnet steel cartridge is in rotor groove 12, the magnet steel is the ferrite to adopt radial magnetization mode to magnetize the magnet steel, concrete magnetization method is: after the magnetic steel is inserted into the rotor slot 12, magnetizing is carried out through the matching of a positioning hole in the magnetizing machine and a rotor positioning rivet; three rivet holes 13 are formed in the rotor core 10 around a rotor shaft hole 14, the two ends of the rotor core 10 are riveted and fixed through the magnetism isolating sheets 11 respectively, and the rotor core 10 is connected with the magnetism isolating sheets 11 through rivets; the stack height of the rotor core 10 is 30mm, 35mm and 40mm along the axial direction, the rotor core 10 is inserted into the rotor placing slot 9, and the minimum distance between the rotor core 10 and the inner wall of the rotor placing slot 9 in the circumferential direction is 0.45 mm.
As shown in fig. 5, the utility model also discloses a totally closed frequency conversion compressor, reach as above including compressor cylinder block 16, bent axle 15 the partial shipment formula permanent-magnet motor, each apex angle punishment of stator core 1 is provided with positioning hole 3 respectively, through the fix with screw between stator and the compressor cylinder block 16, the rotor passes through rotor shaft hole 14 and bent axle 15 and colds pressing fixedly. During the assembly compressor, bent axle 15 is colded pressing into rotor shaft hole 14, and the stator passes through the screw and the pressure spring is fixed on compressor cylinder block 16, single phase power supply 220V 50Hz power supply, and sine wave control mode control motor, maximum operating power are 200W, and the highest efficiency of motor body under high speed state is about 94%, adopts high-grade silicon steel material motor efficiency to reach about 90% during the low-speed, the utility model provides a but motor is applied to and is operated the rotational speed interval in the compressor and be 990rpm-4500rpm, is suitable for R600 a's inverter compressor.
The parts not mentioned in the utility model can be realized by adopting or using the prior art for reference.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (10)
1. The utility model provides a stator, includes stator core, stator core's central authorities have seted up the rotor and have put the groove, a plurality of stator teeth are provided with around the rotor is put the groove on, the stator notch has been seted up between two adjacent stator teeth, the communicating opening of groove is put to the bottom central authorities of each stator tooth and rotor, leave the clearance between the opening both sides of the bottom of each stator tooth and the base both sides of stator notch respectively, and the size in this clearance increases in proper order from opening both sides to the top edge of stator tooth.
2. A stator according to claim 1, wherein the bottom of each stator slot is closed.
3. A stator according to claim 1, wherein the edges of each stator tooth on either side of the through opening are bevelled edges.
4. The stator according to claim 1, wherein the stator further comprises insulating paper and insulating frames, the insulating paper is inserted into the stator slots, the insulating frames are arranged between the outer edge of the stator core and the stator slots, and the number of the stator slots is nine.
5. The stator as claimed in claim 1, wherein the stator further comprises a stator winding and a stator terminal, the stator winding comprises U, V, W three-phase winding, the U, V, W three-phase winding is centralized during winding and embedding, the U, V, W three-phase winding is enameled, and the terminal is a copper wire.
6. A stator according to claim 1, characterized in that the stack height of the stator core is 25mm, 30mm, 35mm in the axial direction.
7. A split permanent magnet motor, comprising a rotor and a stator as claimed in any one of claims 1 to 6, wherein the rotor comprises a rotor core and magnetic steel, a rotor shaft hole is formed in the center of the rotor core, a plurality of embedded rotor slots are formed in the rotor core around the rotor shaft hole, the magnetic steel is inserted into the rotor slots, a plurality of rivet holes are formed in the rotor core around the rotor shaft hole, a plurality of magnetic isolation sheets are respectively arranged at two ends of the rotor core, and the rotor core is connected with the magnetic isolation sheets through rivets; the rotor core is inserted in the rotor placing groove, and the minimum distance between the rotor core and the inner wall of the rotor placing groove in the circumferential direction is 0.45 mm.
8. A split-mount permanent magnet electric motor as recited in claim 7, wherein the number of the rotor slots is six, and each of the rotor slots has a U-shaped cross section.
9. A split charging type permanent magnet motor as claimed in claim 7, wherein the magnetic steel is ferrite, and the stack height of the rotor core is 30mm, 35mm and 40mm in sequence along the axial direction.
10. A totally-enclosed variable frequency refrigeration compressor is characterized by comprising a compressor cylinder seat, a crankshaft and the split permanent magnet motor as claimed in claim 8, wherein each vertex angle of a stator core is provided with a positioning through hole, the stator is connected with the compressor cylinder seat, and the rotor is connected with the crankshaft through a rotor shaft hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520881091.4U CN205123431U (en) | 2015-11-05 | 2015-11-05 | Stator, segmental type permanent magnet motor and totally closed frequency conversion compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520881091.4U CN205123431U (en) | 2015-11-05 | 2015-11-05 | Stator, segmental type permanent magnet motor and totally closed frequency conversion compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205123431U true CN205123431U (en) | 2016-03-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520881091.4U Active CN205123431U (en) | 2015-11-05 | 2015-11-05 | Stator, segmental type permanent magnet motor and totally closed frequency conversion compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205123431U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110011509A (en) * | 2019-05-09 | 2019-07-12 | 浙江万冠电机有限公司 | A kind of DC brushless motor |
-
2015
- 2015-11-05 CN CN201520881091.4U patent/CN205123431U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110011509A (en) * | 2019-05-09 | 2019-07-12 | 浙江万冠电机有限公司 | A kind of DC brushless motor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |