CN206948160U - A kind of low-voltage direct inverter compressor motor - Google Patents
A kind of low-voltage direct inverter compressor motor Download PDFInfo
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- CN206948160U CN206948160U CN201720550119.5U CN201720550119U CN206948160U CN 206948160 U CN206948160 U CN 206948160U CN 201720550119 U CN201720550119 U CN 201720550119U CN 206948160 U CN206948160 U CN 206948160U
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Abstract
The utility model discloses a kind of low-voltage direct inverter compressor motor, belongs to low-voltage direct inverter compressor motor technical field.Stator core and configuration sheet, the rotor core of cuboid magnet steel including being embedded with stator winding, rotor core is installed in the central through hole of stator core, magnet steel has ten, simultaneously adjacent rotor its outer diameter edge, adjacent two panels magnet steel are arranged in splayed inside rotor core evenly and at intervals；Stator core includes yoke portion, along yoke portion inner edge and points to central through hole in 12 stator teeths are provided with evenly and at intervals, stator slot is distributed between adjacent stators teeth portion, stator slot is equal with stator teeth quantity.By the supporting structure of ten extremely embedded magnetic steel rotors and 12 groove stators, realize internal rotor air-gap field and level off to sinusoidal waveform, overcome the deficiency that air-gap field in the prior art is nonsinusoidal waveform distribution, the unfavorable loss that harmonic field zone of action is come, the favourable performance for improving low-voltage direct inverter compressor motor can be reduced.
Description
【Technical field】
A kind of low-voltage direct inverter compressor motor is the utility model is related to, belongs to low-voltage direct inverter compressor motor skill
Art field.
【Background technology】
In existing low-voltage direct inverter compressor motor, the groove stator core of stator core generally use 12, and interior turn
Low-voltage direct frequency-changeable compressor electricity that is sub then use ends of the earth magnetic steel rotor, being made up of ends of the earth magnet steel internal rotor and 12 groove stators
Machine, there is following technical deficiency in it：
1st, cogging torque is big；
2nd, its internal air gap magnetic field, in general of ends of the earth magnet steel internal rotor all can be only formed pointed ripple, include in magnetic field many humorous
Ripple suffers from detrimental effect to the properties of motor, and counter electromotive force can not form sinusoidal waveform distribution.
【Utility model content】
The technical problems to be solved in the utility model is to overcome above-mentioned the shortcomings of the prior art and provide a kind of sky
The low-voltage direct inverter compressor motor of internal air gap Distribution of Magnetic Field convergence sinusoidal waveform during load, it has the small spy of cogging torque
Point.
To solve the above problems, the technical solution of the utility model is as follows：
A kind of low-voltage direct inverter compressor motor, including be embedded with the stator core of stator winding and be configured with magnet steel
Rotor core, rotor core are installed in the central through hole of stator core, and the cuboid of magnet steel in the form of sheets, its improvement is described
Magnet steel has ten, and simultaneously adjacent rotor its outer diameter edge, adjacent two panels magnet steel are in eight inside rotor core evenly and at intervals
Font is arranged；The stator core includes yoke portion, is in be provided with 12 evenly and at intervals along yoke portion inner edge and sensing central through hole
Individual stator teeth, a stator slot, the quantity of stator slot and the quantity of stator teeth is distributed between two neighboring stator teeth
It is equal.
Above-mentioned magnetic steel embedding is in the magnet steel groove that rotor core opens up, the shape of magnet steel groove and the cuboid magnet steel phase of sheet
Match somebody with somebody.
Compared with existing low-voltage direct inverter compressor motor, the beneficial effects of the utility model are as follows：
Embedded magnetic steel rotor uses ten poles, and magnet steel is intercalated in the magnet steel groove inside rotor core evenly and at intervals, often
Adjacent two magnet steel are distributed in splayed close to rotor core outer peripheral edge, and stator uses 12 grooves, by ten extremely embedded magnetic
The supporting structure that steel rotor and 12 groove stators are formed, realize internal rotor air-gap field and level off to sinusoidal waveform, this hair
It is bright to overcome the deficiency that air-gap field in the prior art is nonsinusoidal waveform distribution, the unfavorable of harmonic field zone of action can be reduced
Loss, it is beneficial to the performance for improving low-voltage direct inverter compressor motor, reduces its vibration and noise, it is stable to improve motor operation
Property and reliability, therefore there is certain significance of application.
【Brief description of the drawings】
Fig. 1 is the stereogram of ten-pole permanent magnet rotor of the present utility model；
Fig. 2 is the plan of rotor core；
Fig. 3 is the stereogram of magnet steel；
Fig. 4 is the stereogram of 12 groove stator core of the present utility model；
Fig. 5 is the plan of 12 groove stator cores；
Fig. 6 is the schematic diagram that the pole of 12 groove 10 coordinates cogging torque；
Fig. 7 is the comparative example schematic diagram that the existing pole of 12 groove 8 coordinates cogging torque；
The schematic diagram of back emf waveform when Fig. 8 is the zero load that the pole of 12 groove 10 coordinates；
The comparative example schematic diagram of back emf waveform when Fig. 9 is the zero load that the existing pole of 12 groove 8 coordinates.
【Embodiment】
In order to be more clearly understood that technology contents of the present utility model, now lift following examples and be described in detail.
Refer to shown in Fig. 1,2,3,4,5, be preferred embodiment of the present utility model.
A kind of low-voltage direct inverter compressor motor, including it is embedded with the stator core 1 of stator winding (not shown)
With the rotor core 4 for being configured with magnet steel 5, rotor core 4 is installed in the central through hole 2 of stator core 1, and magnet steel 5 is in the form of sheets
Cuboid, its improvement is that the magnet steel 5 has ten, evenly and at intervals embedded at the inside of rotor core 4 and adjacent rotor
The outer peripheral edge of iron core 4, adjacent two panels magnet steel 5 are arranged in splayed；Stator core 1 includes yoke portion 11, around the inner edge one of yoke portion 11
Week is extended with evenly spaced 12 stator teeths 12 inside, and this 12 stator teeths 12 are directed to central through hole 2, phase
A stator slot 3 is distributed between adjacent two stator teeths, the quantity of stator slot is equal with the quantity of stator teeth.
Its a diameter of 50mm of central through hole 2；Yoke portion 11 is convexly equipped with three installation feet 13, and each installation foot 13 in its outer peripheral edge
Offer a mounting hole 130.
A distant mounting hole its be centrally located on the center line of two nearer mounting hole lines of spacing.
Each stator teeth 12 has a tooth root 121 and an arc crown 122, and each tooth root 121 distinguishes connection yoke portion 11
Inner edge and arc crown 122 center, form stator rabbet 30 between adjacent arc crown 122, one by one stator teeth 12
Arc crown 122, stator rabbet 30 are encircled into a unclosed circle.
Magnet steel 5 is intercalated in the magnet steel groove 40 that rotor core 4 opens up, and the spacing between magnet steel groove is equal；Magnet steel groove 45
The profile of the cuboid magnet steel of shape and sheet matches.
12 groove stators and ten extremely embedded magnetic steel rotor Matching installations, to form-ten extremely low pressure DC frequency-changing of 12 groove
Compressor electric motor, wherein, magnet steel 5 uses Nd-Fe-B magnet steel.
This motor uses 12V~24V DC input voitages.
Understood see Fig. 6 embodiments and Fig. 7 comparative examples：The teeth groove specific torque of the groove ends of the earth motor of comparative example 12 is larger, and
The teeth groove specific torque of the pole motor of 12 groove of the utility model ten is with regard to much smaller.
Understood see Fig. 8 embodiments and Fig. 9 comparative examples：Counter electromotive force ripple of the groove ends of the earth motor of comparative example 12 in zero load
Shape is irregular, and back emf waveform convergence sinusoidal waveform of the pole motor of 12 groove of the utility model ten in zero load.
It is described above, only it is preferred embodiment of the present utility model, is not that other forms are made to the utility model
Limitation, any person skilled in the art, which should learn, directly to be exported or associates in the utility model disclosure
All deformations, it is every that there is same or like technical scheme with the utility model, still fall within guarantor of the present utility model
Protect scope.
Claims (2)
1. a kind of low-voltage direct inverter compressor motor, including be embedded with the stator core of stator winding and be configured with turning for magnet steel
Sub- iron core, rotor core are installed in the central through hole of stator core, the cuboid of magnet steel in the form of sheets, it is characterized in that the magnet steel
There are ten, evenly and at intervals embedded at rotor core inside and adjacent rotor its outer diameter edge, adjacent two panels magnet steel is in splayed
Arrangement；The stator core includes yoke portion, determines along yoke portion inner edge and sensing central through hole in being provided with 12 evenly and at intervals
Sub- teeth portion, a stator slot is distributed between two neighboring stator teeth, the quantity of stator slot is equal with the quantity of stator teeth.
2. low-voltage direct inverter compressor motor according to claim 1, it is characterised in that：The magnetic steel embedding is in rotor
In the magnet steel groove that iron core opens up, the shape of magnet steel groove and the cuboid magnet steel of sheet match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720550119.5U CN206948160U (en) | 2017-05-11 | 2017-05-11 | A kind of low-voltage direct inverter compressor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720550119.5U CN206948160U (en) | 2017-05-11 | 2017-05-11 | A kind of low-voltage direct inverter compressor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206948160U true CN206948160U (en) | 2018-01-30 |
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ID=61361663
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720550119.5U Active CN206948160U (en) | 2017-05-11 | 2017-05-11 | A kind of low-voltage direct inverter compressor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206948160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224568A (en) * | 2019-06-06 | 2019-09-10 | 杭州中科伺尔沃电机技术有限公司 | The embedded rotor motor of Cartesian robot |
-
2017
- 2017-05-11 CN CN201720550119.5U patent/CN206948160U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224568A (en) * | 2019-06-06 | 2019-09-10 | 杭州中科伺尔沃电机技术有限公司 | The embedded rotor motor of Cartesian robot |
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