CN2739868Y - Alternating-current permanent-magnet synchronous dynamo - Google Patents
Alternating-current permanent-magnet synchronous dynamo Download PDFInfo
- Publication number
- CN2739868Y CN2739868Y CN 200420076709 CN200420076709U CN2739868Y CN 2739868 Y CN2739868 Y CN 2739868Y CN 200420076709 CN200420076709 CN 200420076709 CN 200420076709 U CN200420076709 U CN 200420076709U CN 2739868 Y CN2739868 Y CN 2739868Y
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- CN
- China
- Prior art keywords
- permanent magnet
- magnet synchronous
- slot
- permanent
- synchronous motor
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- Expired - Lifetime
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Abstract
The utility model relates to an alternating-current permanent-magnet synchronous dynamo. A cage rotor iron core is provided with a permanent-magnet piece slot into which a rubidium iron boron permanent magnet is inserted. Because the rubidium iron boron permanent magnet material with excellent magnetic property is inserted into the rotor of the utility model, excitation loss of the electrical motor is reduced, and the efficiency of the electrical motor is increased about 107%.
Description
(1) technical field: the utility model belongs to electric equipment, is specifically related to a kind of AC permanent magnet synchronous motor that is used for the highly effective refrigeration compressor.
(2) background technology: at present, energy-saving and cost-reducing technology is just becoming an importance of compressor industry technology innovation, is one of emphasis of energy conservation of compressor consumption reduction design improvement and improve electric efficiency always.For this reason, some enterprises take one after another such as selecting high-magnetic induction, low-iron loss silicon steel sheet, increase electric machine iron core height for use, increasing a series of measures such as main winding, use capacitor; Though this measure makes efficiency of motor obtain corresponding raising, but still can not satisfy the needs of ultra high efficiency compressor, and the internal structure of motor itself still has and can supply improved space.
(3) summary of the invention: the purpose of this utility model is exactly that the structure of existing permanent-magnetic synchronous motor rotor is improved, and proposes a kind of AC permanent magnet synchronous motor that can be used for the highly effective refrigeration compressor.
Improvements of the present utility model are that permanent magnetism sheet slot is set on the cage rotor iron core, insert rubidium iron boron permanent magnet in the described slot.
Permanent magnetism sheet slot described in the utility model is four, respectively is provided with two in special-shaped mouse cage slotted eye both sides; Two slots of homonymy are splayed to be arranged, and the angle α between its top is 120-150 °, and groove top space D is 0.5-2.5mm; Each slot bottom side outer rim and adjacent mouse cage slotted eye outer rim space D ' also be 0.5-2.5mm.
Rubidium iron boron permanent magnet in the slot described in the utility model inserts by the mode to the utmost point.
Compare through permagnetic synchronous motor after improving and existing freezer compressor single-phase asynchronous motor commonly used, owing in rotor, inserted the rubidium iron B permanent magnetic material of magnetic property excellence, just can set up the electric exciting field that very strong permanent-magnetic field substitutes conventional motors through no longer needing external energy after magnetizing, thereby reduced the excitation loss of motor, made efficiency of motor improve 7 percentage points approximately.On the other hand, the synchronous machine rotating speed is 3000 rev/mins, and is higher approximately 60 rev/mins than common asynchronous machine, can make the refrigerating capacity of compressor improve about 2%.After two aspects combined, the Energy Efficiency Ratio of compressor improved more than 0.15 approximately.
(4) description of drawings:
Fig. 1 is the utility model rotor finished product master apparent direction structural representation;
Fig. 2 is an A-A direction sectional structure schematic diagram among Fig. 1;
Fig. 3 is the utility model rotor punching structural representation.
(5) embodiment:
Referring to Fig. 1, Fig. 2, cage rotor iron core 1 in the utility model is to be formed by some rotor punching die casting as shown in Figure 3, slot hole 2 on some promptly becomes permanent magnetism sheet slot 3 after die casting, in slot by the mode of the utmost point being inserted rubidium iron boron permanent magnet 4 respectively; 4 of this permanent magnetism sheet slot operated by rotary motion, respectively be provided with two in special-shaped cage grooves 5 both sides, and two slots are splayed and arrange, angle α between the groove top is 120-150 °, space D is 0.5-2.5mm, permanent magnetism sheet slot is wanted as close as possible mouse cage slotted eye, to set up the strongest magnetic field, reaches optimum efficiency; Generally require the nearest space D of the mouse cage slotted eye outer rim that slot bottom side outer rim promptly is adjacent near that side of mouse cage slotted eye ' also be controlled between the 0.5-2.5mm.
Claims (3)
1. be used for the AC permanent magnet synchronous motor of highly effective refrigeration compressor, it is characterized in that: cage rotor iron core [1] is provided with permanent magnetism sheet slot [3], inserts rubidium iron boron permanent magnet [4] in the described slot.
2. AC permanent magnet synchronous motor according to claim 1 is characterized in that: described permanent magnetism sheet slot [3] is four, respectively is provided with two in special-shaped mouse cage slotted eye [5] both sides; Two slots of homonymy are splayed to be arranged, and the angle α between its top is 120-150 °, and groove top space D is 0.5-2.5mm; Each slot bottom side outer rim and adjacent mouse cage slotted eye outer rim space D ' also be 0.5-2.5mm.
3. AC permanent magnet synchronous motor according to claim 1 is characterized in that: the rubidium iron boron permanent magnet in the described slot inserts by the mode to the utmost point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420076709 CN2739868Y (en) | 2004-09-24 | 2004-09-24 | Alternating-current permanent-magnet synchronous dynamo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420076709 CN2739868Y (en) | 2004-09-24 | 2004-09-24 | Alternating-current permanent-magnet synchronous dynamo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2739868Y true CN2739868Y (en) | 2005-11-09 |
Family
ID=35354928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420076709 Expired - Lifetime CN2739868Y (en) | 2004-09-24 | 2004-09-24 | Alternating-current permanent-magnet synchronous dynamo |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2739868Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055262A (en) * | 2009-10-28 | 2011-05-11 | 珠海格力电器股份有限公司 | Self-start permanent magnet synchronous motor, rotor used thereby and production method of rotor |
| CN106411003A (en) * | 2016-10-09 | 2017-02-15 | 台州市美利乐制冷设备有限公司 | Variable frequency motor rotor |
-
2004
- 2004-09-24 CN CN 200420076709 patent/CN2739868Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055262A (en) * | 2009-10-28 | 2011-05-11 | 珠海格力电器股份有限公司 | Self-start permanent magnet synchronous motor, rotor used thereby and production method of rotor |
| CN106411003A (en) * | 2016-10-09 | 2017-02-15 | 台州市美利乐制冷设备有限公司 | Variable frequency motor rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Huangshi Aibo Technology Development Co., Ltd. Assignor: Huangshi Dongbei Electrical Appliance Co., Ltd. Contract record no.: 2010420000076 Denomination of utility model: Main electric axis driven by AC permanent magnet synchronous motor Granted publication date: 20051109 License type: Exclusive License Record date: 20100604 |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140924 Granted publication date: 20051109 |