CN2788442Y - Low noise three phases asynchronous electromotor for fan - Google Patents
Low noise three phases asynchronous electromotor for fan Download PDFInfo
- Publication number
- CN2788442Y CN2788442Y CN 200520057286 CN200520057286U CN2788442Y CN 2788442 Y CN2788442 Y CN 2788442Y CN 200520057286 CN200520057286 CN 200520057286 CN 200520057286 U CN200520057286 U CN 200520057286U CN 2788442 Y CN2788442 Y CN 2788442Y
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Abstract
The utility model provides a low-noise three-phase asynchronous motor for fans, which is composed of a machine casing of the motor, a rotor and a stator, wherein the machine casing of the motor is provided with a line outlet which is provided with containing space with the size of a containing line. The line outlet fully ensures the contact between a stator iron core and the machine casing, and thus, the stator iron core and a rotor iron core operate on one same center, the noise of the motor is reduced and vibrations of the motor are avoided. The rotor iron core is provided with a sloping groove. The width of the sloping groove is 1.5 times and 2 times as the width of one stator groove. The design mode of the sloping groove efficiently eliminates tooth harmonic waves of the rotor iron core, and thus, the noise of the motor is reduced. The number of stator grooves is 48, and the number of rotor grooves is 36. The utility model uses the structure of the combination of far grooves for effectively eliminating tooth harmonic waves of the stator for reducing noise too. The utility model has simple structure.
Description
Technical field
The utility model relates to the asynchronous motor field, is meant a kind of blower fan low noise threephase asynchronous especially, and its noise is low, vibration is little.
Background technology
Along with the industrialization of China constantly develops, threephase asynchronous has been widely used in the various places of industry and people's daily life, all relates to threephase asynchronous as using in the air-conditioning equipment in the family; Traditional threephase asynchronous generally includes motor casing and is located at members such as the interior iron core of rotor of motor of shell, stator core, wherein the line outlet that is provided with of motor casing opens wide, yet this structure can cause stator core can not contact fully at the line outlet place with shell, be easy to generate off-centre, thereby cause the rotor decentraction, make motor produce vibration and noise; Set skewed slot only is a stator slot on the iron core of rotor of motor simultaneously, because the too small meeting of skewed slot setting causes the slot ripples of rotor, thereby generation too noisy, and the stator slot in the existing motor is that nearly groove cooperates with rotor, its stator and rotor groove number adopts 36/33 or 48/44 assembling mode usually, also is one of reason of motor generation noise; Yet, because the noise of the equipment of people's periphery when starting or operation is excessive, can have influence on people's physical and mental health and operational environment, so use the product of existing motor to be difficult to attract people's attentiveness, industry is unfavorable for the popularization of product, so must consider that a kind of low noise threephase asynchronous is imperative in market.
The utility model content
The utility model is at above-mentioned the deficiencies in the prior art, and main purpose is to provide a kind of blower fan low noise threephase asynchronous, utilizes the structural improvement of inter-module, reaches the effect that noise is low, vibration is little.
For achieving the above object, the utility model is taked following technical scheme:
A kind of blower fan low noise threephase asynchronous, form by motor casing, rotor and stator, motor casing is provided with one only the line outlet of accommodating line size accommodation space, this line outlet has guaranteed that fully stator core contacts with casing, the stator and rotor iron core is moved with one heart, reduce the noise of motor, and avoided the vibration of motor; Described rotor core is provided with a skewed slot, and this skewed slot width is 2.0 stator slots of 1.5 ∽, and the design of this skewed slot has been eliminated the slot ripples of rotor core effectively, thereby reaches the effect that reduces electric moter noise; Described number of stator slots is 48, and rotor is several 36, and the structure that it utilizes groove far away to cooperate can be eliminated the stator tooth harmonic wave effectively, also reaches the low effect of noise.
The utility model key design is to utilize less line outlet mode, and the structure that strengthens skewed slot, the groove cooperation far away of change stator and rotor groove, realizes the effect that electric moter noise is low, vibration is little; The utility model is simple in structure, and is practical.
Be familiar with this operator and can understand feature of the present utility model and purpose and effect really for making, preferred embodiment is described in detail to the utility model below with reference to accompanying drawing.
Description of drawings
Fig. 1 is the utility model surface structure schematic diagram;
Fig. 2 is the utility model casing structure schematic diagram;
Fig. 2 (a) is the utility model ground plane structural representation;
Fig. 2 (b) is the A-A cross-sectional view of Fig. 2 (a);
Fig. 3 is the utility model rotor structure schematic diagram.
The drawing reference numeral explanation:
10, motor send out 1, casing 2, rotor core 3, rotating shaft
11, line outlet 21, skewed slot
Embodiment
See also Fig. 1 to shown in Figure 3, the utility model is such enforcement: a kind of blower fan low noise threephase asynchronous (10), form by motor casing (1), rotor core (2) and stator core, be provided with a rotating shaft (3) at the front end of motor casing (1); As shown in Figure 2, wherein Fig. 2 (a) is the planar structure schematic diagram of casing (1); Fig. 2 (b) is the A-A cross-sectional view of Fig. 2 (a), described motor casing (1) is provided with one only the line outlet (11) of accommodating line size accommodation space, this line outlet (11) has guaranteed that fully stator core (2) contacts with casing (1), the stator and rotor iron core is moved with one heart, reduce the noise of motor, and avoided the vibration of motor (10); As Fig. 2, described rotor core (2) is provided with a skewed slot (21), this skewed slot (21) width " L " is 2.0 stator slots of 1.5 ∽, and the design of described skewed slot (21) has been eliminated rotor core (21) slot ripples effectively, thereby reaches the effect that reduces electric moter noise; Described number of stator slots is 48, and rotor is several 36, and the structure that it utilizes groove far away to cooperate can be eliminated the stator tooth harmonic wave effectively, also reaches the low effect of noise.
The utility model key design is to utilize less line outlet (11) mode, and the setting of skewed slot (21) and to change the stator and rotor groove be the structure that groove far away cooperates, and realizes the effect that electric moter noise is low, vibration is little; The utility model is simple in structure, and is practical.
The above, it only is the low noise threephase asynchronous preferred embodiment of a kind of blower fan of the utility model, be not that technical scope of the present utility model is imposed any restrictions, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any trickle modification, equivalent variations and modification that above embodiment did.
Claims (3)
1, a kind of blower fan low noise threephase asynchronous is made up of motor casing, rotor core and stator core, it is characterized in that: motor casing is provided with one only the line outlet of accommodating line size accommodation space.
2, a kind of blower fan low noise threephase asynchronous according to claim 1, it is characterized in that: described rotor is provided with a skewed slot, and this skewed slot is 2.0 stator slots of 1.5 ∽.
3, a kind of blower fan low noise threephase asynchronous according to claim 1, it is characterized in that: described number of stator slots is 48, rotor several 36.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520057286 CN2788442Y (en) | 2005-04-25 | 2005-04-25 | Low noise three phases asynchronous electromotor for fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520057286 CN2788442Y (en) | 2005-04-25 | 2005-04-25 | Low noise three phases asynchronous electromotor for fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2788442Y true CN2788442Y (en) | 2006-06-14 |
Family
ID=36786735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520057286 Expired - Lifetime CN2788442Y (en) | 2005-04-25 | 2005-04-25 | Low noise three phases asynchronous electromotor for fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2788442Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410183A (en) * | 2014-11-14 | 2015-03-11 | 江苏大中电机股份有限公司 | Efficient and energy-saving motor with low electromagnetic noises |
| WO2016183706A1 (en) * | 2015-05-15 | 2016-11-24 | 佛山市威灵洗涤电机制造有限公司 | Three-phase variable frequency electric motor and washing machine |
-
2005
- 2005-04-25 CN CN 200520057286 patent/CN2788442Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410183A (en) * | 2014-11-14 | 2015-03-11 | 江苏大中电机股份有限公司 | Efficient and energy-saving motor with low electromagnetic noises |
| WO2016183706A1 (en) * | 2015-05-15 | 2016-11-24 | 佛山市威灵洗涤电机制造有限公司 | Three-phase variable frequency electric motor and washing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150425 Granted publication date: 20060614 |