CN111416453A - Permanent magnet motor for air conditioner fan - Google Patents
Permanent magnet motor for air conditioner fan Download PDFInfo
- Publication number
- CN111416453A CN111416453A CN202010149993.4A CN202010149993A CN111416453A CN 111416453 A CN111416453 A CN 111416453A CN 202010149993 A CN202010149993 A CN 202010149993A CN 111416453 A CN111416453 A CN 111416453A
- Authority
- CN
- China
- Prior art keywords
- stator core
- rotor
- permanent magnet
- magnetic
- connecting bridge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a permanent magnet motor for an air conditioner fan, which comprises a plastic package shell, a circular stator core and magnetic steel, wherein the plastic package shell is formed by injection molding; the circular stator core is formed by winding and welding a strip-shaped iron core; the magnetic steel is rectangular and magnetized tangentially; the tooth yoke separated rotor iron core comprises a sector area, a connecting bridge, an inner yoke and a shaft hole; the inner yoke and the connecting bridge are connected through damping rubber. The embedded tangential magnetizing magnetic steel structure is adopted, the power density is high, the magnetic gathering effect is good, the motor energy efficiency can be improved by 3-5% under the same volume, the magnetic circuit at the bottom of the rotor is saturated by adopting a mode of separating the rotor inner yoke from the connecting bridge, the air magnetic resistance is far greater than that of silicon steel, and the self-interlinkage magnetic leakage reactance at the bottom of the rotor can be greatly reduced, so that the motor efficiency is improved; through the connection of the damping rubber, the transmission of the rotor vibration to the output shaft is filtered, the vibration and noise generated by torque pulsation are greatly reduced, and the noise can be reduced by 2-3dB on the same scale.
Description
Technical Field
The invention relates to the technical field of permanent magnet motors, in particular to a permanent magnet motor for an air conditioner fan.
Background
The characteristics of low noise, high energy efficiency and the like have become the development direction of the air conditioning industry in recent years, and the improvement of the energy efficiency and the reduction of the noise of the motor are the key research subjects of various household appliance manufacturers.
The conventional brushless direct current motor adopts a surface-mounted or built-in radial magnetizing magnetic steel structure, so that the problems of low power density and poor magnetism gathering effect are solved, and the permanent magnet brushless direct current motor with high power density and low vibration noise, which is simple in manufacturing process and reliable in structure, is required.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a permanent magnet motor for an air-conditioning fan, which adopts an embedded tangential magnetizing magnetic steel structure, has high power density and good magnetism gathering effect, can improve the motor energy efficiency by 3-5% under the same volume, adopts a mode of separating a rotor inner yoke and a connecting bridge to saturate a magnetic circuit at the bottom of a groove, and can greatly reduce the self-interlinkage magnetic leakage reactance at the bottom of the rotor groove due to the fact that the air magnetic resistance is far greater than that of silicon steel, thereby improving the motor efficiency; through the connection of the damping rubber, the transmission of the rotor vibration to the output shaft is filtered, the vibration and noise generated by torque pulsation are greatly reduced, and the noise can be reduced by 2-3dB on the same scale.
In order to achieve the purpose, the invention adopts the following technical scheme:
a permanent magnet motor for an air conditioner fan comprises a plastic package shell, a circular stator core and magnetic steel, and is characterized in that the plastic package shell is formed by injection molding;
the circular stator core is formed by winding and welding a strip-shaped iron core;
the magnetic steel is rectangular and magnetized tangentially;
the tooth yoke separated rotor iron core comprises a sector area, a connecting bridge, an inner yoke and a shaft hole;
the inner yoke is connected with the connecting bridge through damping rubber;
the insulating frame is wrapped on the tooth part and the yoke part of each stator core to form a stator slot;
and the winding is wound on the stator slot through a winding machine.
Preferably, the circular stator core is formed by m phase units with the same structure which are closely arranged along the axial direction; each phase unit is composed of a stator core and a stator winding.
Preferably, each of the circular stator cores has a cross-section in a shape of a "concave".
The invention has the following beneficial effects:
1. the embedded tangential magnetizing magnetic steel structure is adopted, the power density is high, the magnetism gathering effect is good, the magnetic performance of the motor can be fully utilized, and the energy efficiency of the motor is improved;
2. the 12-slot 10-pole slot pole matching is adopted, so that the motor is more suitable for the design and use of an air conditioner fan motor;
3. the invention adopts the way of separating the rotor inner yoke and the connecting bridge, which can greatly reduce the self-interlinkage magnetic leakage reactance of the bottom of the rotor slot, thereby improving the efficiency of the motor;
4. vibration and noise generated by torque pulsation are greatly reduced through the connection of the damping rubber.
Drawings
Fig. 1 is a schematic structural diagram of a permanent magnet motor for an air conditioner fan according to the present invention;
fig. 2 is a schematic side view of a permanent magnet motor for an air conditioner fan according to the present invention;
fig. 3 is a schematic structural diagram of a damping rotor assembly of a permanent magnet motor for an air conditioner fan according to the present invention.
In the figure: 1 plastic envelope shell, 2 circular stator core, 3 magnet steel, 4 sectorial regions, 5 connecting bridges, 6 damping rubber, 7 inner yoke, 8 shaft holes.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-3, a permanent magnet motor for an air conditioner fan comprises a plastic package shell 1, a circular stator core 2 and magnetic steel 3, wherein the plastic package shell 1 is formed by injection molding;
the round stator core 2 is formed by winding and welding strip-shaped cores, and the round stator core 2 is formed by tightly arranging m phase units with the same structure along the axial direction; each phase unit consists of a stator core and a stator winding, and the cross section of each circular stator core 2 is concave;
the magnetic steel 3 is rectangular and magnetized tangentially;
the tooth yoke separated rotor iron core comprises a sector area 4, a connecting bridge 5, an inner yoke 7 and a shaft hole 8;
the inner yoke is connected with the connecting bridge through damping rubber 6;
the insulating frame is coated on the tooth part and the yoke part of each stator core to form a stator slot;
the winding is wound on the stator slot by a winding machine.
The embedded tangential magnetizing magnetic steel structure is adopted, the power density is high, the magnetism gathering effect is good, the magnetic performance of the motor can be fully utilized, and the energy efficiency of the motor is improved; the 12-slot 10-pole slot pole matching is adopted, so that the motor is more suitable for the design and use of an air conditioner fan motor; the invention adopts the way of separating the rotor inner yoke and the connecting bridge, which can greatly reduce the self-interlinkage magnetic leakage reactance of the bottom of the rotor slot, thereby improving the efficiency of the motor; vibration and noise generated by torque pulsation are greatly reduced through the connection of the damping rubber.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (3)
1. A permanent magnet motor for an air conditioner fan comprises a plastic package shell (1), a circular stator core (2) and magnetic steel (3), and is characterized in that the plastic package shell (1) is formed by injection molding;
the round stator core (2) is formed by winding and welding strip-shaped iron cores;
the magnetic steel (3) is rectangular and magnetized tangentially;
the tooth yoke separated rotor iron core comprises a sector area (4), a connecting bridge (5), an inner yoke (7) and a shaft hole (8);
the inner yoke is connected with the connecting bridge through damping rubber (6);
the insulating frame is wrapped on the tooth part and the yoke part of each stator core to form a stator slot;
and the winding is wound on the stator slot through a winding machine.
2. The permanent magnet motor for the air conditioning fan as claimed in claim 1, wherein the circular stator core (2) is formed by m phase units with the same structure which are closely arranged along the axial direction; each phase unit is composed of a stator core and a stator winding.
3. A permanent magnet motor for an air-conditioning fan according to claim 2, wherein each of the circular stator cores (2) has a cross section in a shape of a "concave".
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010149993.4A CN111416453A (en) | 2020-03-06 | 2020-03-06 | Permanent magnet motor for air conditioner fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010149993.4A CN111416453A (en) | 2020-03-06 | 2020-03-06 | Permanent magnet motor for air conditioner fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111416453A true CN111416453A (en) | 2020-07-14 |
Family
ID=71494239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010149993.4A Pending CN111416453A (en) | 2020-03-06 | 2020-03-06 | Permanent magnet motor for air conditioner fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111416453A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113381541A (en) * | 2021-06-28 | 2021-09-10 | 珠海格力电器股份有限公司 | Rotor assembly and motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070252469A1 (en) * | 2006-04-19 | 2007-11-01 | Asmo Co., Ltd. | Embedded magnet type rotating electric machine |
| CN102422512A (en) * | 2009-03-05 | 2012-04-18 | Cpm小型电动马达有限公司 | Double-rotor motor |
| KR20130027417A (en) * | 2011-09-07 | 2013-03-15 | 삼성전자주식회사 | Motor and washing machine having the same |
| CN106663974A (en) * | 2014-07-04 | 2017-05-10 | 三星电子株式会社 | Motor |
-
2020
- 2020-03-06 CN CN202010149993.4A patent/CN111416453A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070252469A1 (en) * | 2006-04-19 | 2007-11-01 | Asmo Co., Ltd. | Embedded magnet type rotating electric machine |
| CN102422512A (en) * | 2009-03-05 | 2012-04-18 | Cpm小型电动马达有限公司 | Double-rotor motor |
| KR20130027417A (en) * | 2011-09-07 | 2013-03-15 | 삼성전자주식회사 | Motor and washing machine having the same |
| CN106663974A (en) * | 2014-07-04 | 2017-05-10 | 三星电子株式会社 | Motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113381541A (en) * | 2021-06-28 | 2021-09-10 | 珠海格力电器股份有限公司 | Rotor assembly and motor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200714 |
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| WD01 | Invention patent application deemed withdrawn after publication |