CN102157997A - Permanent magnet governor with cooling fan cover - Google Patents
Permanent magnet governor with cooling fan cover Download PDFInfo
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- CN102157997A CN102157997A CN 201110027559 CN201110027559A CN102157997A CN 102157997 A CN102157997 A CN 102157997A CN 201110027559 CN201110027559 CN 201110027559 CN 201110027559 A CN201110027559 A CN 201110027559A CN 102157997 A CN102157997 A CN 102157997A
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- rotor
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- permanent magnetic
- magnetic steel
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Abstract
The invention provides a permanent magnet governor with a cooling fan cover, which can effectively cool permanent-magnet magnetic steel and prevent the permanent-magnet magnetic steel from demagnetizing and has the advantages of simple structure and low manufacturing cost. The permanent magnet governor comprises a driving rotor part and a driven rotor part, wherein the permanent-magnet steel is fixed around a driving rotor, and a driven rotor and a driven spindle are in force-transmission connection in a circumferential direction and in sliding connection in an axial direction; a magnetic steel ring is arranged at the periphery of the driven rotor, and the periphery of the magnetic steel ring is provided with an induction copper ring; the magnetic steel ring is provided with a magnetic steel ring cooling channel, a regulating device and the cooling fan cover, wherein the regulating device is used for regulating the axial position of the driven rotor relative to the driven spindle, the cooling fan cover is provided with a cooling fan outlet, and the driving rotor is provided with a driving rotor cooling air channel. Cooling air from the cooling fan cover goes to the magnetic steel ring cooling channel and a gap between the induction copper ring and the permanent-magnet magnetic steel after passing through the driving rotor cooling air channel.
Description
Technical field
The present invention relates to a kind of electric machine speed regulation machine that utilizes permanent magnetic material to make, especially have the governor of cooling fan housing.
Technical background
The blower fan of present most enterprises, water pump system mode of speed regulation mainly contain air door baffle plate, valve, hydraulic coupler, frequency converter etc.Wherein, air door baffle plate, valve easily cause system vibration, and the waste of energy phenomenon is serious.Hydraulic coupler efficient is low and unstable.Though the frequency converter energy-saving effect is better, its core component is made up of multiple electronic component, and the fault point is many and useful life short, also can cause certain electromagnetic interference simultaneously, and is more or have in the environment of big humidity and should not use at dust.In the permanent magnetic speed-adjusting equipment, because the temperature of permanent magnetic steel can not be too high, if surpass critical value, then magnet steel demagnetization rapidly, and then can't realize speed-regulating function.
Chinese patent 200910027817.7 (application number) discloses a kind of electromagnetic induction energy-saving governor, during the rotation of (being connected) driving rotor with motor output shaft or other driving main shaft, because electromagnetic induction effect, produce moment of torsion on the rotor being driven, make and be driven the rotor discs rotation, and then drive (linking to each other with load) and be driven main axis rotation, so just realized the moment of torsion transmission from the motor to the load.Its speed regulation process: regulate when being driven rotor with respect to the axial location that is driven main shaft by adjusting device, be driven epitrochanterian permanent magnet and just be driven moving axially of main shaft with respect to induction copper ring edge, so just change permanent magnet and responded to the length that copper ring axially is being superimposed, also just changed magnetic flux, thereby change the power that transmits, realize the speed governing purpose.That is to say, to drive rotor portion and be driven rotor portion and be designed to change relative axial position, and then change magnetic flux is realized speed governing, accomplish that under equal volume power is big, efficient is high, and have simple in structure, cost is low, reliability is high, maintenance cost is low, long service life, can realize advantages such as stepless speed regulation.But this patent has two shortcomings, the one, and when at the uniform velocity (ordinary circumstance all is at the uniform velocity) changed the driving rotor portion and be driven the relative axial position of rotor portion, change of flux was at the uniform velocity, though speed governing is evenly relatively slowly.But this patent is that to have the degree of depth on the outer peripheral face of its permanent magnet be 2～30mm, axis and is driven the cooling bath that main-shaft axis becomes angle β=0 °～45 °, solved the difficult problem that heat that the induction copper ring produces because of induced current causes permanent magnet to lose efficacy effectively by cooling bath.But this cooling bath difficulty of processing is big, the processing cost height.
Summary of the invention
The purpose of this invention is to provide a kind of can effectively the cooling to permanent magnetic steel, can guarantee that permanent magnetic steel does not demagnetize, simple in structure, cost angle have a permanent magnetic speed-adjusting machine that cools off fan housing, it has the function of soft start, separating vibration, wide cut conditioning equipment rotating speed, its reliability height, useful life was above 20 years.
The permanent magnetic speed-adjusting machine that cools off fan housing that has of the present invention, comprise the driving rotor portion of mainly forming by driving rotor 2, permanent magnetic steel 3, mainly by being driven rotor 16, induction copper ring 4, magnetic conduction steel loop 5, being driven the rotor portion that is driven that main shaft 10 forms, permanent magnetic steel 3 is fixed on and drives rotor 2 peripheries, and drives being driven rotor 16 and being driven main shaft 10 and becoming power transmission in the circumference and is connected, is slidingly connected at axial one-tenth of rotor coaxial line; The periphery that is driven rotor have with permanent magnetic steel 3 at radially relative magnetic conduction steel loop 5, magnetic conduction steel loop 5 excircles are equipped with induction copper ring 4; It also comprises and is used to regulate the adjusting device that is driven rotor with respect to the axial location that is driven main shaft; Have magnetic conduction steel loop cooling duct 17 on the magnetic conduction steel loop 5, it also comprise be arranged on drive rotor 2 other be used for cooling fan housing 20 by cooling air, cooling has cooling fan housing air outlet 19 on the fan housing, drives and has the driving rotor cooling air passage 18 relative with cooling off fan housing air outlet 19 on the end face of rotor 2; It is relative with magnetic conduction steel loop cooling duct 17 to drive rotor cooling air passage 18; From cooling off the air gap of cooling air between driving rotor cooling air passage 18 after-blow guide magnetic steel ring cooling ducts 17 and induction copper ring 4 and permanent magnetic steel 3 that fan housing air outlet 19 blows out.
Beneficial effect of the present invention: cooling air enters the cooling fan housing, enter driving rotor cooling air passage 18 by cooling fan housing air outlet, be divided into two-way from driving the wind that rotor cooling air passage 18 comes out, the one tunnel enters by magnetic conduction steel loop cooling duct 17 and blows out, and the magnetic conduction steel loop is cooled off.Discharge by air gap between permanent magnetic steel 3 and the induction copper ring 4 on another road, to induction copper ring 4 and permanent magnetic steel 3 cooling coolings.Cooling air can be the cooling air that the fan of motor produces, and also other power source drives the cooling air that blower fan produces.The present invention has solved the difficult problem that permanent magnetic steel 3 lost efficacy by simple structure.
Above-mentioned permanent magnetic speed-adjusting machine, the wall thickness of induction copper ring 4 in axial direction increases gradually.For example, the outer wall of induction copper ring 4 and its axis are the angle less than 30 degree.Preferably, the outer wall of induction copper ring 4 and the angle that its axis is the 10-20 degree.Regulate when being driven rotor by adjusting device with respect to the axial location that is driven main shaft, be driven epitrochanterian induction copper ring and just be driven moving axially of main shaft with respect to the permanent magnetic steel edge, so just change permanent magnetic steel and responded to the length that copper ring axially is being superimposed, also just changed magnetic flux, thereby change the power that transmits, realize the speed governing purpose.Because the wall thickness of induction copper ring 4 in axial direction increases gradually, when at the uniform velocity change driving rotor portion and being driven the relative axial position of rotor portion, the change of magnetic flux is not at the uniform velocity, but has acceleration, and speed governing is very quick.
Above-mentioned permanent magnetic speed-adjusting machine is driven rotor 16 and is driven main shaft and becomes power transmission in the circumference and be connected, in the syndeton that axially becomes to be slidingly connected be: be driven rotor 16 and be fixed on the flower keyboard 15, flower keyboard 15 be driven main shaft and be connected with spline pair.
Above-mentioned permanent magnetic speed-adjusting machine, adjusting device comprise regulates bearing 6, adjusting sliding sleeve 7, location bearing 8, adjusting sliding sleeve 7, rotation adjusting yoke 14; Flower keyboard 15 is rotationally connected with regulating sliding sleeve 7 by regulating bearing 6, is driven main shaft and is rotationally connected by location bearing 8 and locating slide sleeve 9; Regulating sliding sleeve 7 is threaded for 9 one-tenth with locating slide sleeve; Regulate to be connected with on the sliding sleeve 7 and rotate adjusting yoke 14.The concrete course of work of this adjusting device: when rotating adjusting yoke 14 rotations, because regulating sliding sleeve 7 is threaded for 9 one-tenth with the locating slide sleeve of fixing, regulating sliding sleeve 7 promptly rotates and moves axially, regulating sliding sleeve 7 so just moves axially together by regulating bearing 6 drive flower keyboards 15 and being driven rotor, therefore, induction copper ring 4 just moves axially with respect to permanent magnetic steel, and then changes magnetic flux.
Description of drawings
Fig. 1 is the structural representation of permanent magnetic speed-adjusting machine when being driven the rotor advanced state;
The structural representation that Fig. 2 is the permanent magnetic speed-adjusting machine when being driven rotor and pulling out state;
Fig. 3 is induction copper ring 4 outer walls become angle a with axis a schematic diagram;
Fig. 4 is the mobile schematic diagram of the cooling air of permanent magnetic speed-adjusting machine;
Fig. 5 is the schematic diagram (the driving rotor right view among Fig. 1) that drives rotor cooling air passage 18;
Fig. 6 is the schematic diagram that is driven the magnetic conduction steel loop cooling duct 17 on the rotor 16 (being driven among Fig. 1 rotor right view);
Embodiment
Embodiment below in conjunction with accompanying drawing describes in further detail the present invention.
Permanent magnetic speed-adjusting machine as shown in Figure 1, motor coupler 1 links to each other with motor coupler expansion set 21, and load shaft coupling 11 links to each other with expansion set load shaft coupling 12.Install on the motor coupler 1 and drive rotor 2, drive rotor 2 inner peripherys permanent magnetic steel 3 is installed.Load shaft coupling 11 is connected with spline spindle (being driven main shaft) 10.
Be driven rotor 16 and be connected to flower keyboard 15, flower keyboard 15 and spline spindle 10 link to each other with spline pair.Be driven magnetic conduction steel loop 5 is installed on the rotor circumference, magnetic conduction steel loop 5 excircles are equipped with induction copper ring 4.Induction copper ring 4 outer walls become angle a with axis, a=0～30 °, inwall and parallel axes.
Referring to Fig. 4,5,6, have magnetic conduction steel loop cooling duct 17 on the magnetic conduction steel loop 5.Drive the rotor 2 other cooling fan housings 20 of installing, have cooling fan housing air outlet 19 on the cooling fan housing.Have on the end face of driving rotor 2 and drive rotor cooling air passage 18.As shown in Figure 4, cooling air enters cooling fan housing 20, enters by cooling fan housing air outlet 19 and drives rotor cooling air passage 18, discharges by air gap between magnetic conduction steel loop cooling duct 17, permanent magnetic steel 3 and the induction copper ring 4 respectively again.This cooling air can reduce the temperature of permanent magnetic steel 3, induction copper ring 4 and magnetic conduction steel loop 5.
Claims (6)
1. have the permanent magnetic speed-adjusting machine that cools off fan housing, comprise the driving rotor portion of mainly forming by driving rotor (2), permanent magnetic steel (3), mainly by being driven rotor (16), induction copper ring (4), magnetic conduction steel loop (5), being driven the rotor portion that is driven that main shaft (10) forms, permanent magnetic steel (3) is fixed on and drives rotor (2) periphery, and drives being driven rotor (16) and being driven main shaft (10) and becoming power transmission in the circumference and is connected, is slidingly connected at axial one-tenth of rotor coaxial line; The periphery that is driven rotor have with permanent magnetic steel (3) at radially relative magnetic conduction steel loop (5), magnetic conduction steel loop (5) excircle is equipped with induction copper ring (4); It also comprises and is used to regulate the adjusting device that is driven rotor with respect to the axial location that is driven main shaft; It is characterized in that: have magnetic conduction steel loop cooling duct (17) on the magnetic conduction steel loop (5), it also comprise be arranged on drive rotor (2) other be used for cooling fan housing (20) by cooling air, have cooling fan housing air outlet (19) on the cooling fan housing, have the driving rotor cooling air passage (18) relative on the end face of driving rotor (2) with cooling off fan housing air outlet (19); It is relative with magnetic conduction steel loop cooling duct (17) to drive rotor cooling air passage (18); From cooling off the air gap of cooling air between driving rotor cooling air passage (18) after-blow guide magnetic steel ring cooling duct (17) and induction copper ring (4) and permanent magnetic steel (3) that fan housing air outlet (19) blows out.
2. permanent magnetic speed-adjusting machine according to claim 1 is characterized in that: the wall thickness of induction copper ring (4) in axial direction increases gradually.
3. permanent magnetic speed-adjusting machine according to claim 2 is characterized in that: the outer wall of induction copper ring (4) and its axis are the angle less than 30 degree.
4. permanent magnetic speed-adjusting machine according to claim 3 is characterized in that: the angle that the outer wall of induction copper ring (4) and its axis are the 10-20 degree.
5. according to the described arbitrary permanent magnetic speed-adjusting machine of claim 1-4, it is characterized in that: be driven rotor (16) and be driven main shaft and become power transmission in the circumference and be connected, be in the syndeton that axially becomes to be slidingly connected: be driven rotor (16) and be fixed on the flower keyboard (15), flower keyboard (15) be driven main shaft and be connected with spline pair.
6. permanent magnetic speed-adjusting machine according to claim 5 is characterized in that: adjusting device comprises regulates bearing (6), adjusting sliding sleeve (7), location bearing (8), locating slide sleeve (9), rotation adjusting yoke 14; Flower keyboard (15) is rotationally connected with regulating sliding sleeve (7) by regulating bearing (6), is driven main shaft and is rotationally connected by location bearing (8) and locating slide sleeve (9); Regulating sliding sleeve (7) becomes to be threaded with locating slide sleeve (9); Regulate to be connected with on the sliding sleeve (7) and rotate adjusting yoke (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110027559 CN102157997B (en) | 2011-01-26 | 2011-01-26 | Permanent magnet governor with cooling fan cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110027559 CN102157997B (en) | 2011-01-26 | 2011-01-26 | Permanent magnet governor with cooling fan cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102157997A true CN102157997A (en) | 2011-08-17 |
| CN102157997B CN102157997B (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110027559 Expired - Fee Related CN102157997B (en) | 2011-01-26 | 2011-01-26 | Permanent magnet governor with cooling fan cover |
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| Country | Link |
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| CN (1) | CN102157997B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855829A (en) * | 2014-03-12 | 2014-06-11 | 江苏银茂控股（集团）有限公司 | Liquid-cooled electromagnetic induction speed regulator |
| CN103904801A (en) * | 2014-03-12 | 2014-07-02 | 江苏银茂控股（集团）有限公司 | Spray-type air-cooled electromagnetic induction energy-saving speed governor |
| CN104811014A (en) * | 2015-05-25 | 2015-07-29 | 大连交通大学 | Permanent-magnet asynchronous speed-regulating device |
| CN104811013A (en) * | 2015-05-12 | 2015-07-29 | 江苏银茂控股（集团）有限公司 | Permanent magnet energy saving and speed regulation integrated motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101171736A (en) * | 2005-05-10 | 2008-04-30 | 西门子威迪欧汽车电子股份公司 | Electric machine |
| CN101473514A (en) * | 2006-06-22 | 2009-07-01 | 维奥机电设备有限公司 | Method and device for cooling an electric machine |
| CN101517859A (en) * | 2006-08-15 | 2009-08-26 | 勃姆巴迪尔运输有限公司 | Semi-enclosed AC motor |
| CN101552510A (en) * | 2009-05-15 | 2009-10-07 | 江苏银茂控股（集团）有限公司 | Electromagnetic induction energy-saving governor |
-
2011
- 2011-01-26 CN CN 201110027559 patent/CN102157997B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101171736A (en) * | 2005-05-10 | 2008-04-30 | 西门子威迪欧汽车电子股份公司 | Electric machine |
| CN101473514A (en) * | 2006-06-22 | 2009-07-01 | 维奥机电设备有限公司 | Method and device for cooling an electric machine |
| CN101517859A (en) * | 2006-08-15 | 2009-08-26 | 勃姆巴迪尔运输有限公司 | Semi-enclosed AC motor |
| CN101552510A (en) * | 2009-05-15 | 2009-10-07 | 江苏银茂控股（集团）有限公司 | Electromagnetic induction energy-saving governor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855829A (en) * | 2014-03-12 | 2014-06-11 | 江苏银茂控股（集团）有限公司 | Liquid-cooled electromagnetic induction speed regulator |
| CN103904801A (en) * | 2014-03-12 | 2014-07-02 | 江苏银茂控股（集团）有限公司 | Spray-type air-cooled electromagnetic induction energy-saving speed governor |
| CN103855829B (en) * | 2014-03-12 | 2016-01-13 | 江苏银茂控股（集团）有限公司 | Liquid-cooled electromagnetic induction governor |
| CN103904801B (en) * | 2014-03-12 | 2016-01-13 | 江苏银茂控股（集团）有限公司 | The air-cooled electromagnetic induction energy-saving governor of water-fog type |
| CN104811013A (en) * | 2015-05-12 | 2015-07-29 | 江苏银茂控股（集团）有限公司 | Permanent magnet energy saving and speed regulation integrated motor |
| CN104811014A (en) * | 2015-05-25 | 2015-07-29 | 大连交通大学 | Permanent-magnet asynchronous speed-regulating device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102157997B (en) | 2013-01-23 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20110817 Assignee: Nanjing Yinmao permanent magnet energy technology Co.,Ltd. Assignor: Gao Chao|JIANGSU YINMAO HOLDING GROUP Co.,Ltd. Contract record no.: 2014320000200 Denomination of invention: Permanent magnet governor with cooling fan cover Granted publication date: 20130123 License type: Exclusive License Record date: 20140312 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190424 Address after: 210000 No. 89 Qixia Street, Nanjing, Jiangsu Province Patentee after: Nanjing Yinmao permanent magnet energy technology Co.,Ltd. Address before: Room 402, Building 101, Dongfangcheng, Xuanwu District, Nanjing City, Jiangsu Province Co-patentee before: JIANGSU YINMAO HOLDING GROUP Co.,Ltd. Patentee before: Gao Chao |
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| 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: 20130123 Termination date: 20220126 |