CN204906105U - Tombarthite permanent -magnet machine - Google Patents

Tombarthite permanent -magnet machine Download PDF

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Publication number
CN204906105U
CN204906105U CN201520736721.9U CN201520736721U CN204906105U CN 204906105 U CN204906105 U CN 204906105U CN 201520736721 U CN201520736721 U CN 201520736721U CN 204906105 U CN204906105 U CN 204906105U
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CN
China
Prior art keywords
electric machine
medium flow
rare
rotor
earth permanent
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
CN201520736721.9U
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Chinese (zh)
Inventor
金喆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lishui Jinxin Mechanical Motor Co Ltd
Original Assignee
Lishui Jinxin Mechanical Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lishui Jinxin Mechanical Motor Co Ltd filed Critical Lishui Jinxin Mechanical Motor Co Ltd
Priority to CN201520736721.9U priority Critical patent/CN204906105U/en
Application granted granted Critical
Publication of CN204906105U publication Critical patent/CN204906105U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to the technical field of electric machine, especially, relate to a tombarthite permanent -magnet machine. A tombarthite permanent -magnet machine, includes motor casing to and follow the stator group that motor casing medial surface circumference set up, and through the rotor assembly of bearing position in motor casing, the rotor assembly includes motor shaft to and overlap and establish the rotor block on motor shaft, and set up the rare earth permanent magnet on the rotor block lateral surface, rare earth permanent magnet wears to establish at the stator inter block, sealedly between rotor block and the motor shaft constitute rotor cavity, motor shaft's inside axial be equipped with at least two the tunnel with the communicating coolant passageway of rotor cavity, the outside opening of coolant passageway is all on the motor shaft outside motor casing. This tombarthite permanent -magnet machine has a novel structure, advantage that the radiating effect is good.

Description

A kind of rare-earth permanent-magnet electric machine
Technical field
The utility model relates to technical field of motors, particularly relates to a kind of rare-earth permanent-magnet electric machine.
Background technology
Rare-earth permanent-magnet electric machine adopts the magnetic property of rare earth permanent-magnetic material excellent, no longer needs external energy just can set up very strong permanent-magnetic field after magnetizing, and is used for the electric excitation place of alternative conventional motors.Therefore, rare-earth permanent-magnet electric machine not only efficiency is high, and structure is simple, reliable, has the advantages such as little, the lightweight and energy-conservation 5%-60% of volume.But rare-earth permanent-magnet electric machine also exists most fatal defects, after namely motor temperature rises, to the irreversible loss of excitation of rare earth, cause motor damage, even may cause the accident; And existing rare-earth permanent-magnet electric machine all adopts ventilating and cooling, but the very little motor internal that causes in the gap between rotor and stator is very compact, cannot reach good cooling.
Summary of the invention
In order to solve the problem, the purpose of this utility model is to provide a kind of rare-earth permanent-magnet electric machine, and this rare-earth permanent-magnet electric machine has novel structure, the advantage of good heat dissipation effect.
In order to realize above-mentioned object, the utility model have employed following technical scheme:
A kind of rare-earth permanent-magnet electric machine, comprises electric machine casing, and along the stator pack that electric machine casing medial surface circumference is arranged, and the rotor set in electric machine casing is positioned at by bearing; Described rotor set comprises machine shaft, and is set in the rotor block on machine shaft, and is arranged on the rare-earth permanent magnet on rotor block lateral surface; Rare-earth permanent magnet is located in stator pack; Seal between described rotor block and machine shaft and form rotor chamber, the axial coolant guiding channel being at least provided with two-way and communicating with rotor chamber in the inside of machine shaft, the outer openings of coolant guiding channel is all on the machine shaft outside electric machine casing.
As preferably, described coolant guiding channel comprises medium flow channel and medium flow pass, and the outer openings of medium flow channel is opened in machine shaft axial end center, and the outer openings of medium flow pass is opened on machine shaft axial end.
As preferably, the interior side opening of described medium flow channel and the inner side opening of medium flow pass are in the axial both sides of rotor chamber; During use, coolant flows in rotor chamber by medium flow channel, rotor chamber is filled full after flowed out by medium flow pass, the axial both sides that the inner side opening of medium flow channel and medium flow pass two-way is in rotor chamber are conducive to increasing heat exchanger time, reach the object of fully heat radiation.
As preferably, the inside of described machine shaft is provided with many medium flow pass, many medium flow pass regular circumferential regular distribution centered by medium flow channel; Namely many medium flow pass are along machine shaft center regular distribution, thus rotor chamber internal heat dissipating can be made even.
As preferably, described electric machine casing is provided with fin along its face, outer circumferential, the axial end of electric machine casing is provided with shell protective cover, forms heat dissipation cavity between shell protective cover and electric machine casing, and the end of heat dissipation cavity communicates with fin; Be provided with fan blade in described heat dissipation cavity, blade sleeve is located on the machine shaft between electric machine casing and shell protective cover; Under this structure, machine shaft offers coolant guiding channel and is mainly used in cooled rotor group temperature, fan blade then for the surface temperature of cooling motor housing, by arranging fin, the surface temperature better heat-radiation effect of electric machine casing.
As preferably, described stator pack comprises the silicon steel sheet be arranged on electric machine casing circumference medial surface, and is arranged on the coil groups on silicon steel sheet.
The utility model adopts technique scheme, seals and form rotor chamber between the rotor block of this rare-earth permanent-magnet electric machine and machine shaft, and the inside of machine shaft axially offers the coolant guiding channel communicated with rotor chamber; When motor uses, coolant (being generally cooling water) can be passed into by medium flow channel, coolant is flowed out by medium flow pass via after rotor chamber, in whole process, coolant and rotor set carry out heat exchange, compared to traditional ventilating and cooling mode, this rare-earth permanent-magnet electric machine has novel structure, the advantage of good heat dissipation effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in further detail.
A kind of rare-earth permanent-magnet electric machine as shown in Figure 1, comprises electric machine casing 1, and along the stator pack that electric machine casing 1 medial surface circumference is arranged, and be positioned at the rotor set in electric machine casing 1 by bearing.Described stator pack comprises the silicon steel sheet 21 be arranged on the circumferential medial surface of electric machine casing 1, and is arranged on the coil groups 22 on silicon steel sheet 21.
Described rotor set comprises machine shaft 31, and is set in the rotor block 32 on machine shaft 31, and is arranged on the rare-earth permanent magnet 33 on rotor block 32 lateral surface, and rare-earth permanent magnet 33 is located in stator pack; Seal between described rotor block 32 and machine shaft 31 and form rotor chamber 34, the axial coolant guiding channel being at least provided with two-way and communicating with rotor chamber 34 in the inside of machine shaft 31, coolant guiding channel comprises medium flow channel 311 and medium flow pass 312, the outer openings of medium flow channel 311 is opened in the machine shaft 31 axial end center outside electric machine casing 1, and the outer openings of medium flow pass 312 is opened on machine shaft 31 axial end outside electric machine casing 1.The interior side opening of described medium flow channel 311 and the inner side opening of medium flow pass 312 are in the axial both sides of rotor chamber 34; During use, coolant flows in rotor chamber 34 by medium flow channel 311, rotor chamber 34 is filled completely and flowed out by medium flow pass 312, the axial both sides that the inner side opening of medium flow channel 311 and medium flow pass 312 two-way is in rotor chamber 34 are conducive to increasing heat exchanger time, reach the object of fully heat radiation.In addition, the inside of machine shaft 31 can be provided with many medium flow pass 312, many medium flow pass 312 regular circumferential regular distribution centered by medium flow channel 311; Namely many medium flow pass 312 are along machine shaft 31 center regular distribution, thus rotor chamber 34 internal heat dissipating can be made even.
Described electric machine casing 1 is provided with fin 42 along its face, outer circumferential, and the axial end of electric machine casing 1 is provided with shell protective cover, forms heat dissipation cavity 41 between shell protective cover 4 and electric machine casing 1, and the end of heat dissipation cavity 41 communicates with fin 42; Be provided with fan blade 43 in described heat dissipation cavity 41, fan blade 43 is set on the machine shaft 31 between electric machine casing 1 and shell protective cover 4; Under this structure, machine shaft 31 offers coolant guiding channel and be mainly used in cooled rotor group temperature, fan blade 43 surface temperatures for cooling motor housing 1, by arranging fin 42, the surface temperature better heat-radiation effect of electric machine casing 1.
In sum, seal and form rotor chamber 34 between the rotor block 32 of this rare-earth permanent-magnet electric machine and machine shaft 31, the inside of machine shaft 31 axially offers the coolant guiding channel communicated with rotor chamber 34; When motor uses, coolant (being generally cooling water) can be passed into by medium flow channel 311, coolant is flowed out by medium flow pass 312 via after rotor chamber 34, in whole process, coolant and rotor set carry out heat exchange, compared to traditional ventilating and cooling mode, this rare-earth permanent-magnet electric machine has novel structure, the advantage of good heat dissipation effect.

Claims (6)

1. a rare-earth permanent-magnet electric machine, comprises electric machine casing, and along the stator pack that electric machine casing medial surface circumference is arranged, and the rotor set in electric machine casing is positioned at by bearing; Described rotor set comprises machine shaft, and is set in the rotor block on machine shaft, and is arranged on the rare-earth permanent magnet on rotor block lateral surface; Rare-earth permanent magnet is located in stator pack; It is characterized in that: seal between described rotor block and machine shaft and form rotor chamber, the axial coolant guiding channel being at least provided with two-way and communicating with rotor chamber in the inside of machine shaft, the outer openings of coolant guiding channel is all on the machine shaft outside electric machine casing.
2. a kind of rare-earth permanent-magnet electric machine according to claim 1, it is characterized in that: described coolant guiding channel comprises medium flow channel and medium flow pass, the outer openings of medium flow channel is opened in machine shaft axial end center, and the outer openings of medium flow pass is opened on machine shaft axial end.
3. a kind of rare-earth permanent-magnet electric machine according to claim 2, is characterized in that: the interior side opening of described medium flow channel and the inner side opening of medium flow pass are in the axial both sides of rotor chamber.
4. a kind of rare-earth permanent-magnet electric machine according to claim 3, is characterized in that: the inside of described machine shaft is provided with many medium flow pass, many medium flow pass regular circumferential regular distribution centered by medium flow channel.
5. a kind of rare-earth permanent-magnet electric machine according to claim 1, it is characterized in that: described electric machine casing is provided with fin along its face, outer circumferential, the axial end of electric machine casing is provided with shell protective cover, form heat dissipation cavity between shell protective cover and electric machine casing, the end of heat dissipation cavity communicates with fin; Be provided with fan blade in described heat dissipation cavity, blade sleeve is located on the machine shaft between electric machine casing and shell protective cover.
6. a kind of rare-earth permanent-magnet electric machine according to claim 1 or 5, is characterized in that: described stator pack comprises the silicon steel sheet be arranged on electric machine casing circumference medial surface, and is arranged on the coil groups on silicon steel sheet.
CN201520736721.9U 2015-09-22 2015-09-22 Tombarthite permanent -magnet machine Expired - Fee Related CN204906105U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520736721.9U CN204906105U (en) 2015-09-22 2015-09-22 Tombarthite permanent -magnet machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520736721.9U CN204906105U (en) 2015-09-22 2015-09-22 Tombarthite permanent -magnet machine

Publications (1)

Publication Number Publication Date
CN204906105U true CN204906105U (en) 2015-12-23

Family

ID=54928250

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520736721.9U Expired - Fee Related CN204906105U (en) 2015-09-22 2015-09-22 Tombarthite permanent -magnet machine

Country Status (1)

Country Link
CN (1) CN204906105U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105099079A (en) * 2015-09-22 2015-11-25 丽水市金信电机有限公司 Rare-earth permanent magnet motor
CN107147247A (en) * 2017-04-28 2017-09-08 贾正刚 A kind of energy-saving electric machine of convenient use

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105099079A (en) * 2015-09-22 2015-11-25 丽水市金信电机有限公司 Rare-earth permanent magnet motor
CN107147247A (en) * 2017-04-28 2017-09-08 贾正刚 A kind of energy-saving electric machine of convenient use

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Legal Events

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

Granted publication date: 20151223

Termination date: 20170922