CN201409027Y - Permanent magnet synchronous motor rotor - Google Patents

Permanent magnet synchronous motor rotor Download PDF

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Publication number
CN201409027Y
CN201409027Y CN2009200644342U CN200920064434U CN201409027Y CN 201409027 Y CN201409027 Y CN 201409027Y CN 2009200644342 U CN2009200644342 U CN 2009200644342U CN 200920064434 U CN200920064434 U CN 200920064434U CN 201409027 Y CN201409027 Y CN 201409027Y
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CN
China
Prior art keywords
rotor
permanent magnet
synchronous motor
circle
magnet steel
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.)
Expired - Fee Related
Application number
CN2009200644342U
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Chinese (zh)
Inventor
陈友林
曾利民
Original Assignee
陈友林
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Filing date
Publication date
Application filed by 陈友林 filed Critical 陈友林
Priority to CN2009200644342U priority Critical patent/CN201409027Y/en
Application granted granted Critical
Publication of CN201409027Y publication Critical patent/CN201409027Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A permanent magnet synchronous motor rotor comprises a rotor framework, permanent magnet steels and a nonmagnetic batten, and is characterized in that the permanent magnet steels are in the shape of special tiles and are mounted outside the rotor framework via a surface-mounting form, and the nonmagnetic batten is additionally mounted between the two tile-shaped permanent magnet steels and is mounted on the rotor framework via a nonmagnetic screw, thereby avoiding damages caused by centrifugal force generated in high-speed rotation. Simultaneously, the rotor is designed into a hollow rotor, alarge clearance is formed between an inner circle and an outer circle of the rotor framework, the inner circle and the outer circle of the rotor framework are connected via a connecting rib, and thenthe rotor forms air convection during rotation, thereby being favorable for radiating of the permanent magnet steels.

Description

A kind of permanent-magnetic synchronous motor rotor
Technical field
The utility model relates to a kind of New-type electric machine technical field, is specially that a kind of power density is big, the permanent-magnetic synchronous motor rotor of superior performance.
Background technology
Permagnetic synchronous motor since it have Fast starting, location accurately, many premium properties such as speed-regulating range width, power factor (PF) height, fields such as industrial and agricultural production at present in daily life,, space flight and aviation, national defence have obtained utilization widely, particularly under the environment of small size, high-power, low speed high torque, its advantage is more remarkable.; there is following two defective in traditional permanent-magnetic synchronous motor rotor: at first; the mode that permanent magnet and rotor generally take the surface to paste is fixed; and only overlap with non-magnetic cylinder between the circle in outer surface and the stator core; perhaps only wrap up in nonwoven fabrics and fix in permanent magnet surfaces; when running up, increase mechanical strength to increase rotor, but do to such an extent that the result is the air gap that has increased between stator and the rotor like this, reduced the magnetic field efficient of magnet steel; Simultaneously,, when heat surpasses its maximum operation temperature, will cause permanent loss of excitation, cause the damage of motor because permanent magnet can produce heat at work.
The utility model content
The purpose of this utility model be to provide a kind of safe and reliable, production cost is low, the extraordinary permanent-magnetic synchronous motor rotor of radiating effect.
The purpose of this utility model is achieved through the following channels: it comprises rotor skeleton and watt shape magnet steel permanent-magnetic synchronous motor rotor, described rotor skeleton is a hollow-core construction, is supported connection and is cast as a whole by connecting rib by round, the outer circle of the internal layer of rotor skeleton; Described watt of shape magnet steel pasted the outer rim that is installed on the rotor skeleton.Add non magnetic press strip between adjacent two slices watts of shape magnet steel, fix with non magnetic screw.The interior circle of watt shape magnet steel and the cylindrical of rotor are concentric circles, and the exradius of watt shape magnet steel is less than interior radius of circle.Connect rib and be strip or flap-like.
A kind of permanent-magnetic synchronous motor rotor beneficial effect of the utility model is: solved the problem that integument damages easily between rotor and the permanent magnet in the simplest mode, the air gap that has also solved between motor stator and the rotor simultaneously is excessive, the problem that causes the close reduction of magnetic, the air gap flux density waveform levels off to sine wave, makes performance very superior; Beneficial effect of the present invention also is to have solved the heat dissipation problem of motor permanent magnet, has reduced the temperature of rotor, and efficient is further improved, and further improves motor properties.It can be widely used in electric automobile, mine electric locomotive, small-size wind power-generating equipment etc. needs in each class of electronic devices of low speed high torque.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further detail:
Fig. 1 is the utility model structural representation;
Fig. 2 is another structural representation of the present utility model.
Embodiment
As shown in Figure 1 and Figure 2, a kind of permanent-magnetic synchronous motor rotor of the utility model, its rotor is designed to sleeve rotor, and rotor skeleton 1 is a hollow-core construction, is supported and connects and be cast as a whole by connecting rib 6 by the internal layer of rotor skeleton 1 circle 4, outer circle 5; Described watt of shape magnet steel 2 pasted the outer rim that is installed on rotor skeleton 1.
The circumference of rotor skeleton 1 is connected rib 6 with the central shaft employing and connects, and has formed very big space; Connect rib 6 shapes and both can be designed to strip, also can be designed to flap-like, rotor forms cross-ventilation when rotating, form the air channel, is beneficial to the heat radiation of magnet steel.
The installation of watt shape magnet steel 2 and rotor skeleton 1 except that adopting bonding method, is installed non magnetic press strip 3 additional in the centre of adjacent two slices watts of shape magnet steel 2, installs with non magnetic screw 7, causes damage to motor with the centrifugal force of avoiding rotor to produce when the high speed rotating.
The interior circle of watt shape magnet steel 2 and the cylindrical of rotor are concentric circless, and the radius of watt shape magnet steel 2 cylindricals has formed the not watt shape magnet steel 2 and the specific close distribution of magnetic of rotor of equal thickness thus less than interior radius of a circle.
Single rotor can be combined into the stack of N power by N power cell as the power cell of standard.

Claims (4)

1. permanent-magnetic synchronous motor rotor, it is characterized in that: it comprises rotor skeleton (1) and watt shape magnet steel (2), and described rotor skeleton (1) is a hollow-core construction, rotor skeleton (1) circumference connects with being connected rib (6) with central shaft; Described watt of shape magnet steel (2) pasted the outer rim that is installed on rotor skeleton (1).
2. a kind of permanent-magnetic synchronous motor rotor as claimed in claim 1 is characterized in that: add non magnetic press strip (3) between adjacent two slices watts of shape magnet steel (2), and fixing with non magnetic screw (7).
3. a kind of permanent-magnetic synchronous motor rotor as claimed in claim 1 or 2 is characterized in that: the interior circle of watt shape magnet steel (2) and the cylindrical of rotor are concentric circles, and the exradius of watt shape magnet steel (2) is less than interior radius of circle.
4. a kind of permanent-magnetic synchronous motor rotor as claimed in claim 1 is characterized in that: connect rib (6) and be strip or flap-like.
CN2009200644342U 2009-05-15 2009-05-15 Permanent magnet synchronous motor rotor Expired - Fee Related CN201409027Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200644342U CN201409027Y (en) 2009-05-15 2009-05-15 Permanent magnet synchronous motor rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009200644342U CN201409027Y (en) 2009-05-15 2009-05-15 Permanent magnet synchronous motor rotor

Publications (1)

Publication Number Publication Date
CN201409027Y true CN201409027Y (en) 2010-02-17

Family

ID=41679974

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009200644342U Expired - Fee Related CN201409027Y (en) 2009-05-15 2009-05-15 Permanent magnet synchronous motor rotor

Country Status (1)

Country Link
CN (1) CN201409027Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102593989A (en) * 2012-03-27 2012-07-18 中国科学院电工研究所 Rotor structure for permanent-magnet synchronous direct drive motor
CN104485763A (en) * 2010-05-26 2015-04-01 格伦德福斯管理联合股份公司 Permanent magnet rotor for an electric motor
CN106425846A (en) * 2016-12-26 2017-02-22 武汉贝格泰克数控直驱机械有限公司 Surface-mounted permanent-magnet synchronous electric double-head grinding spindle with wide constant torque range
CN106737153A (en) * 2016-12-26 2017-05-31 武汉贝格泰克数控直驱机械有限公司 Broad and constant power IPM permanent-magnet synchronous double end grinding electric main shafts

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104485763A (en) * 2010-05-26 2015-04-01 格伦德福斯管理联合股份公司 Permanent magnet rotor for an electric motor
CN102593989A (en) * 2012-03-27 2012-07-18 中国科学院电工研究所 Rotor structure for permanent-magnet synchronous direct drive motor
CN106425846A (en) * 2016-12-26 2017-02-22 武汉贝格泰克数控直驱机械有限公司 Surface-mounted permanent-magnet synchronous electric double-head grinding spindle with wide constant torque range
CN106737153A (en) * 2016-12-26 2017-05-31 武汉贝格泰克数控直驱机械有限公司 Broad and constant power IPM permanent-magnet synchronous double end grinding electric main shafts

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100217

Termination date: 20160515

CF01 Termination of patent right due to non-payment of annual fee