CN1214506C - Motor and rotor thereof - Google Patents
Motor and rotor thereof Download PDFInfo
- Publication number
- CN1214506C CN1214506C CNB018032958A CN01803295A CN1214506C CN 1214506 C CN1214506 C CN 1214506C CN B018032958 A CNB018032958 A CN B018032958A CN 01803295 A CN01803295 A CN 01803295A CN 1214506 C CN1214506 C CN 1214506C
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- China
- Prior art keywords
- permanent magnet
- motor
- rotor
- bonding agent
- rotor yoke
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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
- H02K1/22—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
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/278—Surface mounted magnets; Inset magnets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
Abstract
A motor having a rotor comprising a plurality of poles with a clearance defined between adjacent permanent magnets of the poles. Thus, even if temperature changes occur owing to motor installation environments or to the starting frequency of the motor, thermal stress occurring in the bonded region between the rotor yoke and the permanent magnets is suppressed, thereby preventing the rotor yoke and the permanent magnets from separating from each other or the permanent magnets from cracking.
Description
Technical field
The present invention relates on rotor, adopt the motor of permanent magnet.
Background technology
As included rotor one example of traditional motor, the structure that has a kind of Japanese patent laid-open 5-191938 communique to be put down in writing sees Figure 15 for details.Figure 15 is the included rotor structure figure of the traditional motor of expression.
Among Figure 15, the 1st, permanent magnet.The 2nd, rotor yoke.The 15th, heat hardening type preimpregnation band is at this above heat hardening type preimpregnation band 15 and show permanent magnet 1.And be listed in permanent magnet 1 on this heat hardening type preimpregnation band 15 when rotor yoke 2 being reeled with heat hardening type preimpregnation band 15, permanent magnet 1 seamlessly is positioned in side by side the outer circumferential side of rotor yoke 2.
Another example of the rotor that traditional motor is included is described with reference to Figure 16 again.Figure 16 is the stereogram of the included rotor of traditional motor.
In the included large rotor yoke of the motor that this elevator hoist is used, in case it is bonding not have the gap between the magnet that adjoins each other, then because the coefficient of expansion of rotor yoke (steel), magnet and bonding agent thereof is different, therefore, between rotor yoke 2 and magnet, produce and peel off or cause magnet cracking because of variations in temperature can produce big thermal stress.
In addition, in Figure 16, adopt same label, omit its explanation, only the part different with Figure 15 made an explanation in the part same or suitable with conventional case shown in Figure 15.
As implied above, because traditional motor is with permanent magnet 1 seamlessly and be listed on the outer circumferential side of rotor yoke 2, therefore, be subjected to motor that variations in temperature that environment causes and the influence of temperature variation that is caused by the electric motor starting frequency are set, adhesive portion between rotor yoke and magnet can produce big thermal stress, exists the problem that rotor yoke and magnet are peeled off or permanent magnet ftractures.
Summary of the invention
The present invention is for addressing the above problem, and its purpose is to provide a kind of restrains the thermal stress that produces between rotor yoke and magnet, can prevent to produce rotor yoke and magnet peels off with the rotor of permanent magnet cracking and adopt the motor of this rotor.
For achieving the above object, the characteristics of motor of the present invention are to comprise a kind of rotor that has a plurality of utmost points, is provided with the gap between the permanent magnet that adjoins each other of the utmost point, the gap system bonding agent landfill that contains hollow bead between this permanent magnet that adjoins each other.
Again, the characteristics of motor of the present invention be comprise a kind of have a plurality of utmost points, the utmost point decide to be provided with on each permanent magnet of number the rotor in gap.
Again, the characteristics of motor of the present invention are this interpolar that adjoins each other system bonding agent landfills that contains hollow bead.
And the characteristics of motor of the present invention are the two component room temperature vulcanizing type bonding agents that bonding agent adopts acrylonitrile-butadiene rubber denaturing acrylamide base system or epoxy system.
Again, the characteristics of motor of the present invention are that the diameter of hollow bead is 0.1～0.3mm.
And the characteristics of motor of the present invention are that hollow bead is made by polyethylene or silicon rubber.
Again, the characteristics of motor of the present invention are that the addition of hollow bead is 1～10%.
And the characteristics of motor of the present invention are that rotor adopts stacked silicon steel plate, and permanent magnet is by bonding the forming of acrylonitrile-butadiene rubber denaturing acrylamide base system.
Again, the characteristics of motor of the present invention are that rotor adopts cast iron to make, and permanent magnet is by bonding the forming of acrylonitrile-butadiene rubber denaturing acrylamide base system.
And the characteristics of motor of the present invention are that the installation of epitrochanterian permanent magnet adopts the anchor clamps that can attach a plurality of permanent magnets simultaneously to carry out.
Again, the characteristics of motor of the present invention are that periphery at the rotor that permanent magnet is housed is wound with the resulting preimpregnation band of impregnation uv-hardening resin in glass fibre.
The characteristics of motor of the present invention are to be provided with the gap between the permanent magnet that adjoins each other of the epitrochanterian utmost point with a plurality of utmost points.
The accompanying drawing simple declaration
Fig. 1 is the stereogram of the included rotor of the motor of the embodiment of the invention 1.
Fig. 2 is the profile of the included rotor of the motor of the embodiment of the invention 1.
Fig. 3 is the profile of the included rotor of the motor of the embodiment of the invention 2.
Fig. 4 is the profile of the included rotor of the motor of the embodiment of the invention 3.
Fig. 5 is the profile of the included rotor of the motor of the embodiment of the invention 4.
Fig. 6 is the profile of the included rotor of the motor of the embodiment of the invention 5.
Fig. 7 is the profile of the included rotor of the motor of the embodiment of the invention 6.
Fig. 8 is the profile of the included rotor of the motor of the embodiment of the invention 7.
Fig. 9 is the 1st concept map of the included method for manufacturing rotor of the motor of the explanation embodiment of the invention 7.
Figure 10 is the 2nd concept map of the included method for manufacturing rotor of the motor of the explanation embodiment of the invention 7.
Figure 11 is the 3rd concept map of the included method for manufacturing rotor of the motor of the explanation embodiment of the invention 7.
Figure 12 is the profile of the included rotor of the motor of the embodiment of the invention 8.
Figure 13 is the profile of the included rotor of the motor of the embodiment of the invention 9.
Figure 14 is the profile of the included rotor of the motor of the embodiment of the invention 10.
Figure 15 is the structure chart of the included rotor of the traditional motor of expression.
Figure 16 is the stereogram of the included rotor of traditional motor.
Implement optimal morphology of the present invention
Embodiments of the invention are described with reference to the accompanying drawings.
One embodiment of the rotor that motor of the present invention is included is described with reference to Fig. 1.Fig. 1 is the stereogram of the included rotor of the motor of the embodiment of the invention 1.
Among Fig. 1, the 1st, permanent magnet, the 2nd, the rotor yoke of rotor.Permanent magnet 1 is arranged on the outer circumferential side surface of rotor yoke 2.This permanent magnet 1 for example adopts bonding agent to be bonded on the rotor yoke 2.
The 3rd, the gap that the permanent magnet that adjoins each other is 1.In the motor of present embodiment, for example between the permanent magnet 1 that adjoins each other, be provided with gap 3 along the axial of rotor yoke 2 gyroaxises.
The width in this gap 3 should be greater than for example difference in size of the thermal shrinking quantity of the thermal shrinking quantity of steel rotor yoke 2 and permanent magnet 1 when the hardening temperature from bonding agent drops to-40 ℃.In addition, the thermal coefficient of expansion of permanent magnet 1 is littler than the thermal coefficient of expansion of rotor yoke 2, and the thermal shrinking quantity of permanent magnet 1 is littler than the thermal shrinking quantity of rotor yoke 2.
Like this, by between the permanent magnet 1 that adjoins each other, the gap being set,, also can restrain the compression stress that acts on permanent magnet 1 even temperature descends.In addition, if permanent magnet 1 is configured to not have the gap, then because of decrease of temperature, on the permanent magnet 1 big compression stress can appear.
Below with reference to Fig. 2 the included rotor profiles of motor shown in Figure 1 is described.Fig. 2 is the profile of the included rotor of the motor of present embodiment.
Among Fig. 2, the 4th, single liquid heat hardening type bonding agent.
In addition, in Fig. 2, adopt same label, omit its explanation, only the part different with Fig. 1 made an explanation in the part same or suitable with Fig. 1.
For example, if permanent magnet 1 and rotor yoke 2 bonding bonding agents are adopted single liquid heat hardening type bonding agent 4, and permanent magnet 1 no gap is bonded on the rotor yoke 2 side by side, then resulting parts are by the thermal cycling test from-40 ℃ to+100 ℃, between this permanent magnet 1 and rotor yoke 2, produce thermal stress, and phenomenon occurs peeling off.
Yet, if the gap 3 of 0.1mm is set 1 of the permanent magnet that adjoins each other, and each permanent magnet 1 is bonded on the rotor yoke 2 side by side, even then resulting parts are carried out above-mentioned thermal cycling test, also can reduce the thermal stress between this permanent magnet 1 and the rotor yoke 2, phenomenon not occur peeling off.
In addition, adopt the permanent magnet 1 of single liquid heat hardening type bonding agent 4 and the bonding of rotor yoke 2 promptly to carry out under 120 ℃ of conditions in the hardening temperature of its bonding agent.
Like this, by the gap 3 of 0.1mm is set 1 of the permanent magnet that adjoins each other, and permanent magnet 1 and rotor yoke 2 is bonding, even produced, also can obtain the high rotor of reliability that thermal stress is little, nothing is peeled off phenomenon from-40 ℃ to+100 ℃ variations in temperature.
In addition, be promptly to carry out under 120 ℃ of conditions owing to adopt the bonding of single liquid heat hardening type bonding agent 4 in the hardening temperature of its bonding agent, therefore,, then on permanent magnet 1, act on compressive this moment if return to room temperature after making adhesive hardens.
Again, the motor of present embodiment for example can be used for the hoist engine of elevator etc.
With reference to Fig. 3 another embodiment of the included rotor of motor of the present invention is described.Fig. 3 is the profile of the included rotor of the motor of present embodiment.
Among Fig. 3, the 5th, biliquid room temperature vulcanizing type bonding agent.The bonding agent that propylene base system or epoxy system is arranged in this biliquid room temperature vulcanizing type bonding agent 5.
When adopting these biliquid room temperature vulcanizing type bonding agent 5 bonding permanent magnets 1 with rotor yoke 2, if with permanent magnet 1 no gap side by side on rotor yoke 2, then pass through thermal cycling test, between this permanent magnet 1 and rotor yoke 2, produce thermal stress, and phenomenon occurs peeling off from-40 ℃ to+100 ℃.Yet, if the gap 3 of 0.05mm is set 1 of the permanent magnet that adjoins each other, and with each permanent magnet 1 and be listed on the rotor yoke 2, even then carry out above-mentioned thermal cycling test, also can reduce the thermal stress between this permanent magnet 1 and the rotor yoke 2, phenomenon not occur peeling off.In addition, adopt 5 pairs of permanent magnets of biliquid room temperature vulcanizing type bonding agent 1 and the bonding of rotor yoke 2 to carry out at ambient temperature.
Like this, by the gap 3 of 0.05mm is set 1 of the permanent magnet that adjoins each other, and permanent magnet 1 and rotor yoke 2 is bonding, even produced, also can obtain the high rotor of reliability that thermal stress is little, nothing is peeled off phenomenon from-40 ℃ to+100 ℃ variations in temperature.
Again, compare when adopting single liquid heat hardening type bonding agent 4, can reduce the gap 3 of 1 of permanent magnet by adopting biliquid room temperature vulcanizing type bonding agent 5.
And, by adopting biliquid room temperature vulcanizing type bonding agent 5, no longer need heating process, can realize economizing energy during manufacturing, can realize the rationalization and the simplification of manufacturing process, can reduce cost.
In addition, in Fig. 3, adopt same label, omit its explanation, only the part different with Fig. 2 made an explanation in the part same or suitable with embodiment shown in Figure 21.
With reference to Fig. 4 the another embodiment of the included rotor of motor of the present invention is described.Fig. 4 is the profile of the included rotor of the motor of present embodiment.
The structure of motor shown in Figure 4 is that the permanent magnet 1 of will be fixed a number connects airtight, and the permanent magnet of being fixed a number 1 after connecting airtight with this is provided with gap 3 as 1 section between the section that adjoins each other.In addition, as the section that a plurality of permanent magnets 1 are connected airtight, usually the method that adopts is promptly to be arranged to the section form along a plurality of permanent magnets 1 that axially will adjoin each other of the gyroaxis of rotor yoke 2 in direction in upright arrangement.
Like this, formed section owing to a plurality of permanent magnets 1 are connected airtight, and a plurality of permanent magnets 1 have been attached on the rotor yoke 2 simultaneously, therefore, the manufacturing process of motor has been simplified, can shorten the manufacturing time of motor, can reduce cost by each section.
In addition, in Fig. 4, adopt same label, omit its explanation, only the part different with Fig. 2 made an explanation in the part same or suitable with embodiment shown in Figure 21.
With reference to Fig. 5 the another embodiment of the included rotor of motor of the present invention is described.Fig. 5 is the profile of the included rotor of the motor of present embodiment.
Among Fig. 5, the 6th, the hollow bead of institute's sizing, this hollow bead 6 adopts resin or rubber to make.
Adopt the bonding agent of the hollow bead 6 that is mixed with this institute sizing in advance,, the thickness of adhibited layer of permanent magnet 1 with rotor yoke 2 can be kept necessarily, be convenient to the size management by permanent magnet 1 and rotor yoke 2 is bonding.
In addition, in Fig. 5, adopt same label, omit its explanation, only the part different with Fig. 2 made an explanation in the part same or suitable with embodiment shown in Figure 21.
With reference to Fig. 6 the another embodiment of the included rotor of motor of the present invention is described.Fig. 6 is the profile of the included rotor of the motor of present embodiment.
Motor shown in Figure 6 adopts and adds the bonding agent of the hollow bead 6 of sizing to some extent, in bonding permanent magnet 1 and rotor yoke 2, also carries out bonding to 1 of the permanent magnet that adjoins each other.
In addition, in Fig. 6, adopt same label, omit its explanation, only the part different with Fig. 5 described in the part same or suitable with embodiment shown in Figure 54.
Like this, add the bonding agent of the hollow bead 6 of sizing to some extent owing to adopted, permanent magnet 1 and rotor yoke 2 is bonding, therefore, the thickness of adhibited layer of permanent magnet 1 with rotor yoke 2 can be kept necessarily, be convenient to the size management.
Again, owing to adopted and added the bonding agent of the hollow bead 6 of sizing to some extent, with bonding between the permanent magnet 1 that adjoins each other, therefore, the thickness of adhibited layer that the permanent magnet that this can be adjoined each other is 1 remains on the certain value suitable with the diameter of hollow bead 6.Again, adopt and add the bonding agent of the hollow bead 6 of sizing to some extent, bonding by the permanent magnet 1 that will adjoin each other, do not need expressly gap 3 to be set 1 of permanent magnet, be convenient to the installation and the size management of permanent magnet 1.
In addition, the size that is added with the hollow bead 6 of bonding agent is a maximum with the adhesive strength of rotor yoke 2 and permanent magnet 1, again, serves as suitable with the 0.1～0.3mm in the gap 3 that roughly can guarantee 1 of the permanent magnet described in the embodiment 1.Peel off adhesive strength and impact adhesive strength if the diameter of this hollow bead 6 less than 0.1mm, then can reduce.Again, shear bond strength descends if the diameter of this hollow bead 6 greater than 0.3mm, then can produce, magnetic properties descends, can not guarantee the problems such as gap with stator.
Again, the material of hollow bead 6 preferably adopts flexible material, serves as suitable with polypropylene and silicon rubber.On the other hand, as the material of hollow bead 6 if use such hard materials such as pottery, glass, metal, when temperature descends, just can not absorb amount of contraction poor of rotor yoke 2 and permanent magnet 1 with the bond layer of 1 of permanent magnet, by thermal cycling test, the phenomenon that rotor yoke 2 is peeled off with permanent magnet 1 or permanent magnet 1 ftractures appears.That is to say, because the material softness of hollow bead, when temperature descends, just can absorb amount of contraction poor of rotor yoke 2 and permanent magnet 1 with the bond layer of 1 of permanent magnet, can prevent the cracking that rotor yoke 2 and permanent magnet 1 are peeled off and prevented permanent magnet 1.
And, when bonding agent adopts room temperature vulcanizing type bonding agent, also can use any hollow bead 6 in hollow beads of polyethylene or the silicon rubber hollow bead, and when bonding agent adopts heat hardening type bonding agent, with use silicon rubber hollow bead for well.This is because the heat when using hollow beads of polyethylene, because of heating the time can cause the cause of hollow bead 6 fusings.
Again, the addition of hollow bead must reach the amount of the bond layer thickness degree of stability between 1 of permanent magnet and rotor yoke 2 and the permanent magnet 1, serves as suitably with 1～10 weight %, particularly with 3～7% for well.In addition, too much as if the amount of the hollow bead 6 that adds to bonding agent, then can produce the problem that adhesive strength descends.
Suppose to adopt certain bonding agent that 1 of the permanent magnet and the permanent magnet 1 that adjoin each other is bonding with rotor yoke 2, even the rotor yoke 2 that is bonded with permanent magnet 1 is in thermal cycling test, not only do not had between 1 of permanent magnet that adjoins each other and permanent magnet 1 and the rotor yoke 2 and peeled off, but also do not have the cracking phenomena of permanent magnet, and can obtain the high rotor of reliability.The bonding agent of this moment is a kind of acrylonitrile-butadiene rubber denaturing acrylamide base system bonding agent of biliquid room temperature vulcanizing type of the hollow beads of polyethylene 5% that has added average grain diameter 0.1mm, utilize this bonding agent, just can not need specially to be provided with under the situation in gap 3, bonding with carrying out between 1 of permanent magnet adjoining each other and permanent magnet 1 and the rotor yoke 2.In this test, 10 permanent magnets 1 are bonded in 1 along the gyroaxis of rotor yoke 2 axial in upright arrangemently extremely go up.
With reference to Fig. 7 the another embodiment of the included rotor of motor of the present invention is described.Fig. 7 is the profile of the included rotor of the motor of present embodiment.
Motor shown in Figure 7 has adopted and has added the bonding agent of the hollow bead 6 of sizing to some extent, with bonding between 1 of permanent magnet adjoining each other and permanent magnet 1 and the rotor yoke 2.
In this motor shown in Figure 7, adopt gap 3 landfills of the interpolar that same bonding agent will adjoin each other with the axial vertical direction of rotor yoke 2 gyroaxises and along the peripheral direction of rotor yoke 2 again.Landfill to the gap 3 of the interpolar of this radially adjacency is called so-called interpolar landfill.
In addition, in Fig. 7, adopt same label, omit its explanation, only the part different with Fig. 6 made an explanation in the part same or suitable with embodiment shown in Figure 65.
Like this, add the bonding agent of the hollow bead 6 of sizing to some extent owing to adopted, radially that the interpolar that adjoins each other is bonding, can more securely permanent magnet 1 be fixed on the rotor yoke 2.
With reference to Fig. 8 the another embodiment of the included rotor of motor of the present invention is made an explanation.Fig. 8 is the profile of the included rotor of the motor of present embodiment.
Among Fig. 8, the 7th, the preimpregnation band by impregnation uv-hardening resin in glass fibre, makes it semi-harden and have cementability, in case irradiation ultraviolet radiation will harden.
This preimpregnation band 7 between the permanent magnet 1 that will adjoin each other and permanent magnet 1 and rotor yoke 2 bonding after, be wound on the outer circumferential side of permanent magnet 1, irradiation ultraviolet radiation makes its sclerosis.
Like this,, just no longer need to use traditional heat hardening type preimpregnation band, do not need to carry out heating process, can realize the simplification of operation, can reduce cost for sclerosis by using the preimpregnation band of uv-hardening resin.
Again, for 1 of permanent magnet and the permanent magnet 1 that will adjoin each other are fixed with rotor yoke 2, the acrylonitrile-butadiene rubber denaturing acrylamide base system bonding agent and the UV cured type preimpregnation band of biliquid room temperature vulcanizing type have been used, thus, just no longer need to use traditional heat hardening type bonding agent, heat hardening type interpolar landfill resin and heat hardening type preimpregnation band, need not heat, can reduce energy resource consumption in order to fix.Again, because of not needing heating, so can shorten a few hours activity duration.
And, for 1 of permanent magnet and the permanent magnet 1 that will adjoin each other are fixed with rotor yoke 2, the acrylonitrile-butadiene rubber denaturing acrylamide base system bonding agent and the UV cured type preimpregnation band of biliquid room temperature vulcanizing type have been used, thus, just no longer need to use traditional heat hardening type bonding agent, heat hardening type interpolar landfill resin and heat hardening type preimpregnation band, because of not needing to carry out heat hardening, so produce the problem of thermal stress can eliminating from heating-up temperature to the cooling procedure of recovering room temperature.
In addition, in Fig. 8, adopt same label, omit its explanation, only the part different with Fig. 7 described in the part same or suitable with embodiment shown in Figure 76.
Below, with reference to Fig. 9～Figure 11 the included rotor of motor shown in Figure 8 one manufacture method is described.Fig. 9 is the 1st concept map of the included method for manufacturing rotor of the motor of explanation present embodiment.
Among Fig. 9, the 8th, jet pipe A, the 9th, jet pipe B.The 10th, the adhesive A agent is penetrated from jet pipe A8.The 11st, bonding agent B agent is penetrated from jet pipe B9.
In addition, in Fig. 9, adopt same label, omit its explanation, only the part different with Fig. 8 described in the part same or suitable with Fig. 8.
Again, Figure 10 is the 2nd concept map of manufacture method of the motor of explanation present embodiment.In addition, in Figure 10, adopt same label, omit its explanation in the part same or suitable with Fig. 8.
And Figure 11 is the 3rd concept map of manufacture method of the motor of explanation present embodiment.In addition, in Figure 11, adopt same label, omit its explanation in the part same or suitable with Fig. 8.
Below, Fig. 9～motor manufacturing method shown in Figure 11 is described.
At first, with rotor yoke 2 horizontal being installed on the panoramic table.
Secondly, the bonding portion of the permanent magnet 1 on rotor yoke 2 mixes coating adhesive A agent 10 and bonding agent B agent 11.In addition, the acrylonitrile-butadiene rubber denaturing acrylamide base system bonding agent of biliquid room temperature short time constrictive type has good pasta cementability, and the bonding plane that does not need specially to carry out rotor yoke 2 is handled.Again, the method that applies as this mixing has a kind of injection painting method, that adopt is the jet pipe A8 of adhesive A agent 10 usefulness and the jet pipe B9 of bonding agent B agent 11 usefulness, with spray pattern these adhesive A agent 10 of spraying from jet pipe A8 and jet pipe B9 and bonding agent B agent 11 are mixed, the bonding agent that obtains after the mixing is coated in the bonding portion on the rotor yoke 2.
Then, permanent magnet 1 one by one is bonded on the rotor yoke 2 from the limit end successively.At this moment, on the position of leaving the permanent magnet 1 that is attached on the rotor yoke 2 slightly, place next permanent magnet 1 earlier, applying light moves on one side on one side again, it is pushed on the permanent magnet 1 that has been attached, at this moment, bonding agent enters 1 of permanent magnet, utilizes the hollow bead 6 that is blended in the bonding agent to form the gap 3 suitable with these hollow bead 6 diameters naturally.
Repeat this processing, after will posting, make permanent magnet 1 revolution, repeat the same processing of the next utmost point, permanent magnet 1 is bonded on the rotor yoke 2 along the permanent magnet 1 of the 1 axial continuous utmost point of the gyroaxis of rotor yoke 2.
When this utmost point also with permanent magnet 1 bonding finishing after, will and above-mentioned same bonding agent spray and to be coated between the utmost point of the present utmost point and previous adjacency, with these interpolar landfills.
Then, permanent magnet 1 is bonded in extremely going up of full Zhou Suoyou on the rotor yoke 2, interpolar landfills these are all with bonding agent well after, multilayer-wound preimpregnation band 7 above these permanent magnets 1 and interpolar.
At last, make rotor yoke 2 revolutions that are wound with preimpregnation band 7, irradiation ultraviolet radiation carries out 7 sclerosis of preimpregnation band.
Embodiment 8
With reference to Figure 12 the another embodiment of the included rotor of motor of the present invention is described.Figure 12 is the profile of the included rotor of the motor of present embodiment.
Among Figure 12, the 12nd, anchor clamps.This anchor clamps 12 are installed on the anchor clamps 12 after adopting permanent magnet 1 that electromagnet, magnet instrument mode etc. will mounting be good in advance to hold, in case its permanent magnet 1 is bonded on the rotor yoke 2 then these anchor clamps 12 and permanent magnet 1 disengagement.In addition, the permanent magnet 1 that is installed on the anchor clamps 12 also can be a plurality of, and is connected airtight side by side on axial (array) of the gyroaxis of rotor yoke 2 in advance.
In addition, in Figure 12, adopt same label, omit its explanation, only the part different with Fig. 4 made an explanation in the part same or suitable with embodiment shown in Figure 43.
Again, if, just clean easily when then enclosing bonding agent in advance at the material of no cementabilities such as the surface-coated polytetrafluoroethylene of anchor clamps 12, polyethylene, polypropylene.
Embodiment 9
With reference to Figure 13 the another embodiment of the included rotor of motor of the present invention is described.Figure 13 is the profile of the included rotor of the motor of present embodiment.
Among Figure 13, the 13rd, the rotor yoke of the laminated product of silicon steel plate.
In addition, among Figure 13, adopt same label, omit its explanation, only the part different with Fig. 8 described in the part same or suitable with embodiment shown in Figure 87.
Again, if rotor yoke adopts the laminated product of silicon steel plate, then in the degreasing bonding before during the use soup, soup dyes between the stacked silicon steel plate, just be difficult to this dye into soup remove fully.Yet, have the acrylonitrile-butadiene rubber denaturing acrylamide base system of the good biliquid room temperature short time constrictive type of pasta cementability by use, no longer need to carry out the bonding pre-treatment of rotor yoke, can make and omit the post-job manufacturing process of degreasing and rationalize, the precipitation thinner can be realized, also bonding reliability can be improved.
This rotor is applicable to the situation when stator also adopts the laminated product of same silicon steel plate.By on this rotor and stator, using the laminated product of same silicon steel plate, can reduce Master Cost.
Embodiment 10
With reference to Figure 14 the another embodiment of the included rotor of motor of the present invention is described.Figure 14 is the profile of the included rotor of the motor of present embodiment.
Among Figure 14, the 14th, foundry goods is the rotor yoke of cast iron.
In addition, in Figure 14, adopt same label, omit its explanation, only the part different with Figure 13 described in the part same or suitable with embodiment shown in Figure 13 9.
Again,, when then before permanent magnet 1 is bonding, carrying out degreasing, can produce iron rust immediately, influence cementability if rotor yoke adopts cast iron.Yet, have the acrylonitrile-butadiene rubber denaturing acrylamide base system of the good biliquid room temperature short time constrictive type of pasta cementability by use, no longer need to carry out the bonding pre-treatment of rotor yoke, can make and omit the post-job manufacturing process of degreasing and rationalize, the precipitation thinner can be realized, also bonding reliability can be improved.
By this cast iron is used for rotor, even, also can process in the occasion of using other material can not process because of complex structure.
As mentioned above, electric machine structure of the present invention is to comprise a kind ofly having a plurality of utmost points and be provided with the rotor in gap between the permanent magnet that adjoins each other of the utmost point, even variations in temperature occurred, also can reduce the thermal stress between permanent magnet and rotor, can restrain the generation of peeling off.
Again, electric machine structure of the present invention be comprise a kind of have a plurality of utmost points and the utmost point decide to be provided with the rotor in gap on each permanent magnet of number, even variations in temperature occurred, also can reduce the thermal stress between permanent magnet and rotor, can restrain the generation of peeling off.
And, electric machine structure of the present invention is with containing the bonding agent of hollow bead with the gap landfill between the permanent magnet that adjoins each other, by with the bonding agent that contains the hollow bead of sizing to some extent with landfill between the permanent magnet that adjoins each other, can make the thickness of adhibited layer between the permanent magnet that adjoins each other keep certain, be convenient to the size management.
Again, electric machine structure of the present invention is to use the bonding agent that contains hollow bead with the interpolar landfill that adjoins each other, and can more securely permanent magnet be fixed on the rotor.
And electric machine structure of the present invention is the two component room temperature vulcanizing type bonding agent that bonding agent adopts acrylonitrile-butadiene rubber denaturing acrylamide base system or epoxy system, with the gap of using single liquid heat hardening type bonding agent to compare can to reduce between permanent magnet.
And, electric machine structure of the present invention is that the diameter of hollow bead is 0.1～0.3mm, by using the bonding agent that contains this hollow bead with landfill between the permanent magnet that adjoins each other, can make the thickness of adhibited layer between the permanent magnet that adjoins each other keep certain, be convenient to the size management.
Again, electric machine structure of the present invention is that bonding agent adopts polyethylene or silicon rubber to make, when temperature descends, can absorb amount of contraction poor of rotor and permanent magnet by the bond layer between permanent magnet, can prevent the cracking that rotor and permanent magnet are peeled off and prevented permanent magnet.
Again, electric machine structure of the present invention is that the addition of hollow bead is 1～10%, can make the bond layer thickness between permanent magnet and between rotor and the permanent magnet stable, when keeping adhesive strength, can make thickness of adhibited layer keep certain.
Again, electric machine structure of the present invention is to be wound with the resulting preimpregnation band of impregnation uv-hardening resin in glass fibre on the periphery of the rotor that permanent magnet is housed, be no longer necessary for the heating process that makes the sclerosis of preimpregnation band and carry out, can realize the simplification of operation, can reduce cost.
The rotor structure of motor of the present invention is to be provided with the gap between the permanent magnet that adjoins each other of the epitrochanterian utmost point with a plurality of utmost points, even variations in temperature occurred, also can reduce the thermal stress between permanent magnet and rotor, can restrain the generation of peeling off.
Utilizability on the industry
In sum, motor of the present invention comprises a kind ofly having a plurality of utmost points and at the permanent magnetic that adjoins each other of the utmost point Establish gapped rotor between iron, even variations in temperature occurred, also can reduce the heat between permanent magnet and rotor Stress can be restrained the generation of peeling off.
Claims (8)
1, a kind of motor is characterized in that, comprising: have a plurality of utmost points and be provided with the rotor in gap between the permanent magnet that adjoins each other of the described utmost point, the gap system between the described permanent magnet that adjoins each other is with the bonding agent landfill that contains hollow bead.
2, motor as claimed in claim 1 is characterized in that, described bonding agent adopts the two component room temperature vulcanizing type bonding agent of acrylonitrile-butadiene rubber denaturing acrylamide base system or epoxy system.
3, motor as claimed in claim 1 is characterized in that, the diameter of described hollow bead is 0.1～0.3mm.
4, motor as claimed in claim 1 is characterized in that, described hollow bead is made by polyethylene or silicon rubber.
5, motor as claimed in claim 1 is characterized in that, the addition of described hollow bead is 1～10%.
6, motor as claimed in claim 1 is characterized in that, described rotor adopts stacked silicon steel plate, and described permanent magnet is by bonding the forming of acrylonitrile-butadiene rubber denaturing acrylamide base system.
7, motor as claimed in claim 1 is characterized in that, described rotor adopts cast iron to make, and described permanent magnet is by bonding the forming of acrylonitrile-butadiene rubber denaturing acrylamide base system.
8, motor as claimed in claim 1 is characterized in that, is wound with the resulting preimpregnation band of impregnation uv-hardening resin in glass fibre in the described periphery that the rotor of permanent magnet is housed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000254112A JP2002078257A (en) | 2000-08-24 | 2000-08-24 | Motor and rotor thereof |
| JP254112/2000 | 2000-08-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1394376A CN1394376A (en) | 2003-01-29 |
| CN1214506C true CN1214506C (en) | 2005-08-10 |
Family
ID=18743113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB018032958A Expired - Fee Related CN1214506C (en) | 2000-08-24 | 2001-03-08 | Motor and rotor thereof |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2002078257A (en) |
| CN (1) | CN1214506C (en) |
| TW (1) | TWI227587B (en) |
| WO (1) | WO2002017462A1 (en) |
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| DE10393311T5 (en) * | 2003-02-27 | 2005-09-01 | Mitsubishi Denki K.K. | Magnetic motor for a motor |
| JP2007264576A (en) * | 2006-03-30 | 2007-10-11 | Nidec Sankyo Corp | Lens drive device |
| US20100060774A1 (en) * | 2006-02-24 | 2010-03-11 | Nidec Sankyo Corporation | Lens drive device |
| JP5352949B2 (en) * | 2006-09-04 | 2013-11-27 | 株式会社ジェイテクト | Magnet type motor |
| EP2091131B1 (en) * | 2006-10-17 | 2017-08-09 | Sanyo Denki Co., Ltd. | Permanentmagnetrotor for motor and its manufacturing method |
| US7673380B2 (en) | 2007-04-23 | 2010-03-09 | Varco I/P, Inc. | Methods for making rotors for permanent magnet motors |
| JP5068102B2 (en) * | 2007-05-22 | 2012-11-07 | 三菱電機株式会社 | Permanent magnet type rotating electrical machine and its rotor |
| US8183734B2 (en) * | 2008-07-28 | 2012-05-22 | Direct Drive Systems, Inc. | Hybrid winding configuration of an electric machine |
| JP5298905B2 (en) * | 2009-02-09 | 2013-09-25 | 日産自動車株式会社 | Manufacturing method of split permanent magnet and electric motor using the split permanent magnet |
| US8316616B2 (en) | 2009-03-04 | 2012-11-27 | Vast Enterprises, Llc | Methods and devices for constructing a wall with brick facade |
| ES2387433B1 (en) * | 2009-05-28 | 2013-08-08 | Gamesa Innovation & Technology, S.L. | METHOD OF MAGNET ASSEMBLY IN GENERATORS AND ENGINES OF WIND TURBINES AND CONSEQUENTIALLY MAGNET ASSEMBLY. |
| JP5486036B2 (en) | 2012-04-11 | 2014-05-07 | ファナック株式会社 | Electric motor having a rotor structure for preventing problems due to distortion caused by temperature change and method for manufacturing the same |
| CN102738910A (en) * | 2012-07-20 | 2012-10-17 | 国电联合动力技术有限公司 | Bonded permanent magnet for large direct-drive permanent-magnet generator |
| CN103236771A (en) * | 2013-05-17 | 2013-08-07 | 大连东利伟业环保节能科技有限公司 | Asynchronous starting rotor of half-magnetic-sheet permanent-magnetic synchronous motor |
| CN104779722B (en) * | 2015-04-28 | 2017-06-23 | 哈尔滨工业大学 | A kind of rotor structure of high-speed permanent magnet motor |
| US10177618B2 (en) * | 2016-03-15 | 2019-01-08 | General Atomics | Rotor assembly and method of manufacturing |
| CN105680594A (en) * | 2016-04-20 | 2016-06-15 | 京磁材料科技股份有限公司 | Permanent magnet motor and processing method thereof |
| JP6464114B2 (en) | 2016-05-20 | 2019-02-06 | ファナック株式会社 | Rotor structure of rotating electric machine and rotating electric machine |
| DE102016209146A1 (en) * | 2016-05-25 | 2017-11-30 | Robert Bosch Gmbh | Rotor of an electric machine |
| JP6336221B1 (en) * | 2016-07-15 | 2018-06-06 | 三菱電機株式会社 | Rotor, rotating electrical machine, and method for manufacturing the rotor |
| EP3576253A4 (en) * | 2017-01-30 | 2020-10-14 | Hitachi Industrial Equipment Systems Co., Ltd. | Axial gap type rotating electric machine |
| EP3396685B1 (en) | 2017-04-28 | 2020-06-03 | Nichia Corporation | Composite component comprising ring-shaped bonded magnet and method of manufacturing the same |
| JP7108197B2 (en) * | 2017-05-23 | 2022-07-28 | 株式会社スリーボンド | Laminated steel sheet manufacturing method, laminated steel sheet, motor and adhesive composition for laminated steel sheet |
| JP2019030063A (en) * | 2017-07-26 | 2019-02-21 | Tdk株式会社 | Magnet structure and motor |
| WO2019213897A1 (en) * | 2018-05-10 | 2019-11-14 | 西门子股份公司 | Rotor shaft and machining method therefor |
| CN109167488B (en) * | 2018-10-08 | 2023-12-08 | 尼得科电机(东莞)有限公司 | Method for manufacturing rotor as rotary component of motor |
| TWI744741B (en) | 2018-12-17 | 2021-11-01 | 日商日本製鐵股份有限公司 | Laminated iron core and rotating electric machine |
| TWI717154B (en) | 2018-12-17 | 2021-01-21 | 日商日本製鐵股份有限公司 | Laminated iron core and rotating electric machine |
| US11855485B2 (en) | 2018-12-17 | 2023-12-26 | Nippon Steel Corporation | Laminated core, method of manufacturing same, and electric motor |
| KR102607589B1 (en) | 2018-12-17 | 2023-11-30 | 닛폰세이테츠 가부시키가이샤 | Laminated core and rotating electrical machines |
| EA202192063A1 (en) | 2018-12-17 | 2021-11-24 | Ниппон Стил Корпорейшн | CORE AND ELECTRIC MOTOR |
| KR102583082B1 (en) | 2018-12-17 | 2023-09-27 | 닛폰세이테츠 가부시키가이샤 | Adhesive laminated core, its manufacturing method and rotary electric machine |
| KR102602877B1 (en) * | 2018-12-17 | 2023-11-17 | 닛폰세이테츠 가부시키가이샤 | Adhesive laminated cores for stators and rotating electrical machines |
| TWI732384B (en) | 2018-12-17 | 2021-07-01 | 日商日本製鐵股份有限公司 | Laminated iron core and rotating electric machine |
| EP3902108A4 (en) | 2018-12-17 | 2022-10-05 | Nippon Steel Corporation | Laminated core and rotating electric machine |
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| JPS604052A (en) * | 1983-06-22 | 1985-01-10 | 横浜ゴム株式会社 | Corrosion-resistant structure |
| JPH07107714A (en) * | 1993-10-05 | 1995-04-21 | Shinichi Nishimura | Structure and method for aligning |
| JPH09328668A (en) * | 1996-06-10 | 1997-12-22 | Sekisui Chem Co Ltd | Cold-curable resin composition, cold-curing type adhesive, reactive hot-melt type adhesive and cold-curing type tacky agent |
| JPH09331643A (en) * | 1996-06-10 | 1997-12-22 | Mitsubishi Electric Corp | Servomotor and its manufacture |
| JP3420906B2 (en) * | 1996-12-16 | 2003-06-30 | 三菱電機株式会社 | Permanent magnet type rotating electric machine |
| JPH11211958A (en) * | 1998-01-29 | 1999-08-06 | Canon Inc | Optical device, projecting and exposing device and device production |
| JP2000060087A (en) * | 1998-08-07 | 2000-02-25 | Matsushita Electric Ind Co Ltd | Planar facing motor and its manufacture |
-
2000
- 2000-08-24 JP JP2000254112A patent/JP2002078257A/en active Pending
-
2001
- 2001-03-08 CN CNB018032958A patent/CN1214506C/en not_active Expired - Fee Related
- 2001-03-08 WO PCT/JP2001/001824 patent/WO2002017462A1/en active Application Filing
- 2001-03-23 TW TW090107005A patent/TWI227587B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002078257A (en) | 2002-03-15 |
| TWI227587B (en) | 2005-02-01 |
| WO2002017462A1 (en) | 2002-02-28 |
| CN1394376A (en) | 2003-01-29 |
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