CN101741156A - Motor for heating ventilation air conditioner - Google Patents
Motor for heating ventilation air conditioner Download PDFInfo
- Publication number
- CN101741156A CN101741156A CN200810217665A CN200810217665A CN101741156A CN 101741156 A CN101741156 A CN 101741156A CN 200810217665 A CN200810217665 A CN 200810217665A CN 200810217665 A CN200810217665 A CN 200810217665A CN 101741156 A CN101741156 A CN 101741156A
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- motor
- hvac
- heating
- ventilating
- air conditioning
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- Permanent Magnet Type Synchronous Machine (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention relates to a motor for heating ventilation air conditioner, comprising a stator and a rotor arranged in the stator; wherein the stator comprises a case and a magnet fixed in the case, the magnet is opposite to the rotor, and the rotor comprises a rotor core and a winding wound on the rotor core, the rotor core is opened with fourteen coiling slots, and the magnet is formed with four magnetic poles. The heating ventilation air conditioner of the invention adopts four magnetic poles and fourteen slots; compared with the existing heating ventilation air conditioner adopting two magnetic poles and twelve slots, electromagnetism exciting frequency of motor can be increased, thus reducing excitation amplitude and further reducing harmonic noise; besides, torque variation frequency is increased and amplitude is reduced, thus further reducing harmonic noise.
Description
Technical field
The present invention relates to a kind of motor, relate in particular to a kind of Heating,Ventilating and Air Conditioning (HVAC) (HVAC:heat, ventilation, air-condition) motor in field of being used for.
Background technology
Along with science and technology development and progress, people more and more pay attention to the noise pollution problem of operational environment and living environment.Noise of motor, the noise of motor that especially is applied to field of heating ventilation air conditioning has become the index of a more and more important measurement motor quality.Noise of motor is divided into machinery noise, ventilation noise and electromagnetic noise usually, and electromagnetic noise can cause strong noise sensation.The number of magnetic pole of the stator and rotor winding groove and proportion relation have a direct impact the electromagnetic noise that motor produces.
The existing motor that is used for field of heating ventilation air conditioning, stator adopt two magnetic poles usually, and 12 winding slots are established in rotor core usually, yet the motor of this kind structure can produce bigger electromagnetic noise, thereby cause the overall noise of motor higher.
Summary of the invention
The present invention solves the technical scheme that existing technical problem adopts: a kind of Heating,Ventilating and Air Conditioning (HVAC) motor, comprise stator and be installed in the interior rotor of stator, described stator comprises shell and is fixed in the interior magnet of shell, described magnet is relative with described rotor, described rotor comprises rotor core and is wound in winding in the rotor core, described rotor core offers 14 winding slots, and described magnet forms four magnetic poles.
The beneficial effect that illustrated embodiment of the present invention has is: adopt four utmost points, 14 grooves, can increase the electromagnetic exciting frequency of motor, thereby reduce the exciting amplitude, and then improve harmonic noise; In addition, the frequency that cogging torque (cogging torque) changes also will increase, and amplitude will reduce, thereby further improve harmonic noise.
In order further to understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, yet appended graphic only provide with reference to and the explanation usefulness, be not to be used for the present invention is limited.
Description of drawings
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Fig. 1 is the explosive view according to the motor of one embodiment of the invention, has omitted winding among the figure;
Fig. 2 is the structural representation according to the motor stator of one embodiment of the invention;
Fig. 3 is the perspective view according to the electric machine rotor iron core of one embodiment of the invention;
The perspective view of Fig. 4 for seeing in another angle according to the electric machine rotor iron core of one embodiment of the invention;
The Heating,Ventilating and Air Conditioning (HVAC) that is respectively prior art shown in Fig. 5 A and Fig. 5 B is used the cogging torque comparison of wave shape figure of motor with the Heating,Ventilating and Air Conditioning (HVAC) of motor and one embodiment of the invention;
Figure 6 shows that Heating,Ventilating and Air Conditioning (HVAC) motor the noise ratio his-and-hers watches under different rotating speeds of the Heating,Ventilating and Air Conditioning (HVAC) of prior art with motor and one embodiment of the invention.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
See also Fig. 1 and Fig. 2, according to a kind of Heating,Ventilating and Air Conditioning (HVAC) motor of one embodiment of the invention, comprise stator 10 and be installed in rotor 30 in the stator 10, described stator 10 comprises shell 12 and is fixed in magnet 14 in the shell 12 that described magnet 14 forms four magnetic poles; Described rotor 30 comprises rotor core 32 and is wound in winding in the rotor core (figure does not show), and described rotor core 32 offers 14 winding slots 322, and described magnet 14 is relative with described rotor 30.
In the present embodiment, described shell is columniform iron-clad 12.Described magnet 14 is the arc-shaped magnet of four spaces, the inner surface of the outer surface of magnet 14 and iron-clad 12 is fixing fits, magnetic pole of each magnet 14 corresponding formation, the polar arc angle of each magnetic pole (alleged herein polar arc angle is meant: connect the angle that the magnetic pole two ends form to iron-clad 12 center lines respectively) scope can be 33～43 degree, 46～56 degree, 59～69 degree, or 72～82 degree; Preferably, the polar arc angular range of described magnetic pole is 37～39 degree, 50～52 degree, 63～65 degree, or 76～78 degree.
Be appreciated that ground, described four magnetic poles also can be realized by two magnet, as two magnet being individually fixed in the two opposite sides of iron-clad 12 inner surfaces, two magnet are identical near the polarity of iron-clad 12 sides, and described like this two magnet can form two field poles (field pole) and two induction magnetic poles (inducedfield pole); Be appreciated that ground, an annular magnet also can fill into four magnetic poles.
See also Fig. 3 and Fig. 4, the winding slot 322 of described rotor core 32 is a skewed slot, the center line that is same winding slot 322 end that is positioned at 32 front end face 32a unshakable in one's determination is in a certain angle in the projection of front end face 32a with the center line of an end that is positioned at 32 rear end face 32b unshakable in one's determination, described angle is called the inclined angle alpha of skewed slot, the scope of described inclined angle alpha can be 0～30 degree, preferably, the range of tilt angles of described skewed slot 322 is 12～14 degree.
The Heating,Ventilating and Air Conditioning (HVAC) that is respectively prior art shown in Fig. 5 A and Fig. 5 B is used the cogging torque comparison of wave shape figure of motor with the Heating,Ventilating and Air Conditioning (HVAC) of motor and one embodiment of the invention; Figure 6 shows that Heating,Ventilating and Air Conditioning (HVAC) motor the noise ratio his-and-hers watches under different rotating speeds of the Heating,Ventilating and Air Conditioning (HVAC) of prior art with motor and one embodiment of the invention.
See also Fig. 5 A, Fig. 5 B and Fig. 6, the Heating,Ventilating and Air Conditioning (HVAC) of the embodiment of the invention is with motor application four utmost points 14 grooves, can increase the electromagnetic exciting frequency (as 2 utmost point one weeks of 12 grooves of prior art 12 times, and four utmost point one weeks of 14 grooves be 28 times) of motor, thereby reduce the exciting amplitude, and then improve harmonic noise; And the frequency that cogging torque (cogging torque) changes also will increase, and amplitude will reduce, thereby further improve harmonic noise.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. Heating,Ventilating and Air Conditioning (HVAC) motor, comprise stator and be installed in the interior rotor of stator, described stator comprises shell and is fixed in the interior magnet of shell, described magnet is relative with described rotor, described rotor comprises rotor core and is wound in winding in the rotor core, it is characterized in that: described rotor core offers 14 winding slots, and described magnet forms four magnetic poles.
2. Heating,Ventilating and Air Conditioning (HVAC) motor according to claim 1 is characterized in that: the polar arc angular range of each magnetic pole is 33～43 degree, 46～56 degree, 59～69 degree or 72～82 degree.
3. Heating,Ventilating and Air Conditioning (HVAC) motor according to claim 2 is characterized in that: the polar arc angular range of each magnetic pole is 37～39 degree.
4. Heating,Ventilating and Air Conditioning (HVAC) motor according to claim 1 is characterized in that: the polar arc angular range of each magnetic pole is 50～52 degree.
5. Heating,Ventilating and Air Conditioning (HVAC) motor according to claim 1 is characterized in that: the polar arc angular range of each magnetic pole is 63～65 degree.
6. Heating,Ventilating and Air Conditioning (HVAC) motor according to claim 1 is characterized in that: the polar arc angular range of each magnetic pole is 76～78 degree.
7. according to each described Heating,Ventilating and Air Conditioning (HVAC) motor of claim 1 to 6, it is characterized in that: described four magnetic poles are formed by two arc-shaped magnets.
8. according to each described Heating,Ventilating and Air Conditioning (HVAC) motor of claim 1 to 6, it is characterized in that: described four magnetic poles are formed by four arc-shaped magnets, and each magnet forms a magnetic pole.
9. according to each described Heating,Ventilating and Air Conditioning (HVAC) motor of claim 1 to 6, it is characterized in that: described winding slot is a skewed slot, and the angle of inclination of described skewed slot is 0～30 degree.
10. Heating,Ventilating and Air Conditioning (HVAC) motor according to claim 9 is characterized in that: the angle of inclination of described skewed slot is 12～14 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810217665A CN101741156A (en) | 2008-11-26 | 2008-11-26 | Motor for heating ventilation air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810217665A CN101741156A (en) | 2008-11-26 | 2008-11-26 | Motor for heating ventilation air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101741156A true CN101741156A (en) | 2010-06-16 |
Family
ID=42464185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810217665A Pending CN101741156A (en) | 2008-11-26 | 2008-11-26 | Motor for heating ventilation air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101741156A (en) |
Cited By (3)
| 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 |
| CN105281448A (en) * | 2015-10-09 | 2016-01-27 | 清华大学 | Asynchronous motor with axial adjacent segment same-direction and reverse-direction power-on windings |
| CN108696052A (en) * | 2017-04-07 | 2018-10-23 | 德昌电机(深圳)有限公司 | Cooling fan module |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2048642U (en) * | 1988-12-02 | 1989-11-29 | 南京微特电机厂 | Stator excitation of dc wind machine for automoble conditioner |
| CN2149060Y (en) * | 1992-09-21 | 1993-12-08 | 常熟市第二特种电机厂 | 8/10 pole pole-changing, variable-speed, three-phase asynchronous motor |
| CN1152200A (en) * | 1995-10-07 | 1997-06-18 | 马渊马达株式会社 | Small motor |
| JP2004120997A (en) * | 2002-09-24 | 2004-04-15 | Samsung Kwangju Electronics Co Ltd | The stator winding method of induction motor for compressor |
| CN1832301A (en) * | 2006-03-30 | 2006-09-13 | 上海大学 | Built-in rotor of surface concept permanent-magnet machine |
| CN1941548A (en) * | 2005-09-27 | 2007-04-04 | 乐金电子(天津)电器有限公司 | Permanent magnet structure for decreasing noise in BLDC motor |
-
2008
- 2008-11-26 CN CN200810217665A patent/CN101741156A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2048642U (en) * | 1988-12-02 | 1989-11-29 | 南京微特电机厂 | Stator excitation of dc wind machine for automoble conditioner |
| CN2149060Y (en) * | 1992-09-21 | 1993-12-08 | 常熟市第二特种电机厂 | 8/10 pole pole-changing, variable-speed, three-phase asynchronous motor |
| CN1152200A (en) * | 1995-10-07 | 1997-06-18 | 马渊马达株式会社 | Small motor |
| JP2004120997A (en) * | 2002-09-24 | 2004-04-15 | Samsung Kwangju Electronics Co Ltd | The stator winding method of induction motor for compressor |
| CN1941548A (en) * | 2005-09-27 | 2007-04-04 | 乐金电子(天津)电器有限公司 | Permanent magnet structure for decreasing noise in BLDC motor |
| CN1832301A (en) * | 2006-03-30 | 2006-09-13 | 上海大学 | Built-in rotor of surface concept permanent-magnet machine |
Non-Patent Citations (2)
| Title |
|---|
| C. STUDER等: "Study of Cogging Torque in Permanent Magnet Machines", 《IEEE》 * |
| Z. Q. ZHU: "Influence of Design Parameters on Cogging Torque", 《IEEE TRANSACTIONS ON ENERGY CONVERSION》 * |
Cited By (3)
| 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 |
| CN105281448A (en) * | 2015-10-09 | 2016-01-27 | 清华大学 | Asynchronous motor with axial adjacent segment same-direction and reverse-direction power-on windings |
| CN108696052A (en) * | 2017-04-07 | 2018-10-23 | 德昌电机(深圳)有限公司 | Cooling fan module |
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| PB01 | Publication | ||
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Application publication date: 20100616 |