CN204205747U - Commutator motor, electric blowing machine and electric dust collector - Google Patents
Commutator motor, electric blowing machine and electric dust collector Download PDFInfo
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- CN204205747U CN204205747U CN201420677677.4U CN201420677677U CN204205747U CN 204205747 U CN204205747 U CN 204205747U CN 201420677677 U CN201420677677 U CN 201420677677U CN 204205747 U CN204205747 U CN 204205747U
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Abstract
The utility model provides commutator motor, electric blowing machine and the electric dust collector that fully can improve the efficiency of the magnetic loop of the commutator motor with the stator core employing grain-oriented magnetic steel sheet.Commutator motor (3) possesses: the stator (7) with stator core (9) and excitation winding (10); With there is armature winding (17) and be configured at the rotor (8) of the inner side of stator, stator core is formed by the grain-oriented magnetic steel sheet (94) of the stacked band shape using long side direction as direction of easy axis, the normal in the face of grain-oriented magnetic steel sheet and the rotational axis vertical of rotor, stator core with divisional plane unshakable in one's determination (25a, 25b) for boundary is divided into the first stator core (9A) and the second stator core (9B), observe from the rotating shaft direction of rotor, divisional plane unshakable in one's determination is positioned at the rear of the direction of rotation of rotor relative to the pole center line of stator.
Description
Technical field
The utility model relates to commutator motor, electric blowing machine and electric dust collector.
Background technology
Be known to air blast portion and motor shape all-in-one-piece electric blowing machine.Electric blowing machine is equipped on electric dust collector etc.Usually, electric blowing machine uses with the high-speed rotary of 30000 ~ 45000 turns per minute.Therefore, in electric blowing machine, use commutator motor, this motor is made up of stators and rotators, and stator possesses 2 magnetic poles and excitation winding, and rotor is positioned at the inner side of stator and possesses armature winding and commutator.
In existing electric blowing machine, stator core is formed as the frame shape of profile approximating square, and possesses the approximate meniscate magnetic pole outstanding respectively to inner side from 180 ° of opposed both sides.The flowing of magnetic flux is as follows: the front end entering the magnetic pole of a side from the surface of rotor core through the space of the opposed faces of stator core and rotor core, two-way is divided at the magnetic pole back side, and arrive the magnetic pole back side of the opposing party by yoke and converge, the space of the opposed faces then from the front end of the magnetic pole of the opposing party through stator core and rotor core enters rotor core, get back to initial position along by the transversal rotor core in direction connected to each other for 2 magnetic poles, thus form a circle.In addition, yoke refers to the both sides not having magnetic pole of stator core.In the root of magnetic pole and the bight of frame shape, Hua Hu limit, magnetic flux limit change gradually towards.That is, in existing stator core, magnetic flux towards each place in stator core be change.Therefore, as the material of stator core, usually use the magnetic characteristic not directive non-oriented electromagnetic steel sheet having of tool.That is, the non-oriented electromagnetic steel sheet having gone out by the stamping-out by punching press is stacked fixing along the axis of motor, forms stator core thus.The rolling direction of the directive grain-oriented magnetic steel sheet of magnetic characteristic tool is called as direction of easy axis, and magnetic characteristic is more excellent than non-oriented electromagnetic steel sheet having.On the other hand, the magnetic characteristic in direction at a right angle with the rolling direction of grain-oriented magnetic steel sheet is poorer than non-oriented electromagnetic steel sheet having.When using grain-oriented magnetic steel sheet in existing stator core, compared with using the situation of non-oriented electromagnetic steel sheet having, the efficiency of the position magnetic loop consistent with direction of easy axis in the direction of magnetic flux improves, but in the decrease in efficiency of the two inconsistent position magnetic loop.As a result, the generally speaking decrease in efficiency of magnetic loop and moyor reduces.Therefore, be difficult to adopt grain-oriented magnetic steel sheet in existing stator core.
In following patent documentation 1, disclose following technology: combine multiple block of being made up of stacked grain-oriented magnetic steel sheet and form stator core, making the direction of magnetic flux and direction of easy axis roughly consistent at each block.
Patent documentation 1: Japanese Unexamined Patent Publication 2010-093945 publication
In the technology of patent documentation 1, there is following problem.In the root of the magnetic pole of stator core and the bight of frame shape, Hua Hu limit, magnetic flux limit change gradually towards.In these parts, the direction of magnetic flux is insufficient consistent with direction of easy axis.Therefore, in the technology of patent documentation 1, the efficiency of magnetic loop fully cannot be improved.In addition, at the composition surface of block and the divisional plane of stator core, take divisional plane as boundary, there is the distortion caused by stamping-out of the grain-oriented magnetic steel sheet because utilizing punching press to carry out in the region of both sides, reducing in this region magnetic characteristic.In the technology of patent documentation 1, the divisional plane of stator core is present in the root of magnetic pole and the bight of frame shape.Therefore, because whole magnetic fluxs is all through the divisional plane of stator core, be therefore subject to the impact that efficiency reduces in the region of the low divisional plane both sides of magnetic characteristic.In the technology of patent documentation 1, in order to make the direction of magnetic flux and direction of easy axis fully consistent, need stator core to be divided into more block.But stator core is divided into more block, the quantity of the divisional plane of stator core more increases, the impact that the efficiency caused by divisional plane being therefore also just subject to stator core more reduces cannot improve the efficiency of magnetic loop fully.
Utility model content
The utility model completes to solve problem as described above, its object is to, there is provided a kind of commutator motor, electric blowing machine and the electric dust collector that fully can improve the efficiency of the magnetic loop of commutator motor, this commutator motor has the stator core employing grain-oriented magnetic steel sheet.
Commutator motor of the present utility model possesses: stator, and this stator has stator core and excitation winding; And rotor, this rotor has armature winding and is configured at the inner side of stator, the feature of above-mentioned commutator motor is, stator core is formed by the grain-oriented magnetic steel sheet of the stacked band shape using long side direction as direction of easy axis, the normal in the face of grain-oriented magnetic steel sheet and the rotational axis vertical of rotor, stator core with divisional plane unshakable in one's determination for boundary is split into the first stator core and the second stator core, observe from the rotating shaft direction of rotor, divisional plane unshakable in one's determination is positioned at the rear of the direction of rotation of rotor relative to the pole center line of stator.
The feature of the commutator motor involved by technical scheme 2 is, in technical scheme 1, said stator iron core has: the magnetic pole piece forming magnetic pole; And winding installation portion, with above-mentioned magnetic pole piece apart from the rotating shaft of above-mentioned rotor distance compared with, above-mentioned winding installation portion is apart from the distance of the rotating shaft of above-mentioned rotor, and above-mentioned excitation winding is installed on above-mentioned winding installation portion.
The feature of the commutator motor involved by technical scheme 3 is, in technical scheme 1 or 2, near the right angle orientation of electrical netural axis when above-mentioned divisional plane unshakable in one's determination is positioned at the specified running of above-mentioned commutator motor.
The feature of the commutator motor involved by technical scheme 4 is, in technical scheme 1 or 2, at the magnetic pole piece of said stator iron core, the end of multiple layers of above-mentioned grain-oriented magnetic steel sheet is opposed with above-mentioned rotor respectively.
Technical scheme 5 provides a kind of electric blowing machine, it is characterized in that, above-mentioned electric blowing machine possesses: the commutator motor described in technical scheme 1 or 2; And fan, this fan is driven by above-mentioned commutator motor.
Technical scheme 6 provides a kind of electric dust collector, it is characterized in that, above-mentioned electric dust collector possesses the electric blowing machine described in technical scheme 5.
According to the utility model, fully can improve the efficiency of the magnetic loop of commutator motor, this commutator motor has the stator core employing grain-oriented magnetic steel sheet.
Accompanying drawing explanation
Fig. 1 is the longitudinal section of the electric blowing machine that execution mode 1 of the present utility model is shown.
Fig. 2 is the cutaway view observing the major part of the commutator motor of execution mode 1 of the present utility model from side, the rotation of rotor axial air blast portion.
Fig. 3 is the figure only stator core extracted from Fig. 2.
Fig. 4 is the example of the magnetic flux line chart of being resolved the commutator motor of the execution mode of the present utility model 1 obtained by electromagnetic field.
Fig. 5 is the example of automaton that is the schematic diagram of flying fork type coil winding machine that the permutation coiling implementing excitation winding is shown.
Fig. 6 is the cutaway view observing the major part of the commutator motor of execution mode 2 of the present utility model from side, the rotation of rotor axial air blast portion.
Fig. 7 is the figure only stator core extracted from Fig. 6.
Fig. 8 is the example of the magnetic flux line chart of being resolved the commutator motor of the execution mode of the present utility model 2 obtained by electromagnetic field.
Fig. 9 is the schematic diagram of the example of the cut-out operation of the commutator motor manufacture method that execution mode 3 of the present utility model is shown.
Figure 10 is the schematic diagram of the example of the bending machining operation of the commutator motor manufacture method that execution mode 3 of the present utility model is shown.
Figure 11 is the cutaway view of the electric dust collector that execution mode 4 of the present utility model is shown.
Label declaration
1: electric blowing machine; 2: air blast portion; 3: commutator motor; 4: fan; 5: fan guide part; 6: framework; 7: stator; 8: rotor; 9: stator core; 9A: the first stator core; 9B: the second stator core; 10: excitation winding; 11: axle; 12: rotor core; 13: commutator; 14,15: bearing; 16: end; 17: armature winding; 18: commutator segment (segment); 19: brush; 20: space; 21: support; 22,24: insulating element; 23: voussoir (wedge); 25a, 25b: divisional plane unshakable in one's determination; 26a, 26b: magnetic pole; 27: setting tool unshakable in one's determination; 28: flying trident arm; 29: ozzle; 30,31,32,33: region; 34: line; 40: electric dust collector; 41: main body of dust collector; 42: suction inlet; 43: dust collecting part; 44: outlet; 91A, 92A, 91B, 92B: magnetic pole piece; 93A, 93B: winding installation portion; 94: grain-oriented magnetic steel sheet; 100,110: device; 101: coiled material; 102: uncoiler; 103,112: roll feeder; 104: cutter; 105: output mechanism; 113: bending machining roller; 941: end.
Embodiment
Below, with reference to accompanying drawing, execution mode of the present utility model is described.In addition, also the repetitive description thereof will be omitted to mark identical label to the parts shared in each figure.In addition, the utility model comprises all combinations of each execution mode shown below.
Execution mode 1.
Fig. 1 is the longitudinal section of the electric blowing machine that execution mode 1 of the present utility model is shown.As shown in Figure 1, the electric blowing machine 1 of present embodiment 1 has: the air blast portion 2 producing inhalation power; And drive the commutator motor 3 in air blast portion 2.Electric blowing machine 1 such as can be applied to electric dust collector.
Air blast portion 2 possesses: the fan 4 possessing multiple alar part; And cover the fan guide part 5 of fan 4.The air that rotation along with fan 4 is flowed by fan guide part 5 guides to the inside of commutator motor 3.The air limit of this flowing cools the commutator motor 3 generated heat along with running, while discharge from the peristome (omitting diagram) being arranged at framework 6.
Commutator motor 3 possesses: the stator 7 being fixed on the inner side of the framework 6 of cup-shaped or tubular; And in the inner side of stator 7 across the rotor 8 that space 20 is arranged opposite with it.Stator 7 plays the effect of excitation.Rotor 8 is supported to rotatable, and plays the effect of armature.The part not being incorporated in the inner side of framework 6 of commutator motor 3 is exposed laterally from the peristome or notch being formed at framework 6.
Stator 7 possesses: by stacked for multiple grain-oriented magnetic steel sheets stator core 9 fixedly; And the excitation winding 10 of stator core 9 is wound in across insulating element 24.By making electric current flow in excitation winding 10, make the generation magnetic field, inner side of stator 7.
Rotor 8 possesses: the axle 11 being configured at center; Be fixed on the rotor core 12 of the ring-type around axle 11; The armature winding 17 of rotor core 12 is wound in across insulating element 22; And the commutator 13 be fixed in the position away from rotor core 12 around axle 11.Rotor core 12 is by fixedly forming stacked for multiple electromagnetic steel plates.Axle 11 is supported on framework 6 via bearing 14,15.Thus, rotor 8 can rotate freely relative to framework 6.The bearing 14 being positioned at a side of side, air blast portion 2 is incorporated in support 21, and this support 21 to be built bridge setting in the mode of the peristome of transversal framework 6.The bearing 15 being positioned at the opposing party of the side contrary with side, air blast portion 2 is incorporated in the bottom of framework 6.
Fan 4 is fixed with in the end 16 of the side, air blast portion 2 of axle 11.Along with the rotation of rotor 8, fan 4 is driven in rotation.The top of multiple coils forming armature winding 17 end that starts and the terminal end terminated that namely reels that namely reels is electrically connected with the commutator segment 18 of commutator 13 by methods such as melting (fusing) instant heating ca(u)lks.A pair brush 19 is kept by framework 6, and by spring press in commutator 13 with commutator 13 sliding contact.Brush 19 is connected with power supply (omit and illustrate), supplies electric current and armature supply via commutator 13 to armature winding 17.In addition, excitation winding 10 and armature winding 17 are connected in series, and also supply electric current to excitation winding 10 from identical power supply.By the magnetic field produced by stator 7 and armature supply, produce torque at rotor 8.In order to make the direction of rotation of rotor 8 constant, armature winding 17 and commutator segment 18 are to make and that armature supply flow coil switch martingale corresponding with the phase place of rotor 8.
Fig. 2 is the cutaway view of the major part of the commutator motor 3 observing present embodiment 1 from side, the rotation of rotor 8 axial air blast portion 2.Fig. 3 is only by figure that stator core 9 extracts from Fig. 2.The direction of rotation of rotor 8 can utilize armature winding 17 to set with the combination of the connection of commutator segment 18.The direction of rotation of rotor 8 according to the alar part in air blast portion 2 towards decision.In present embodiment 1, the direction of rotation of rotor 8 is left-handed i.e. counter clockwise direction in fig. 2.
As shown in FIG. 2 and 3, observe from the rotating shaft direction of rotor 8, stator core 9 in the form of a ring.Stator core 9 with divisional plane 25a, the 25b unshakable in one's determination at 2 positions for boundary is split into the first stator core 9A and the second stator core 9B.First stator core 9A and the second stator core 9B is in approximate C word shape.Observe from the rotating shaft direction of rotor 8, divisional plane 25a, 25b unshakable in one's determination are positioned at the position offset towards the direction of rotation rear of rotor 8 relative to the pole center line of stator core 9.In addition, in present embodiment 1, near the right angle orientation of electrical netural axis when divisional plane 25a, 25b unshakable in one's determination are positioned at commutator motor 3 specified running.In the following description, by electrical netural axis during commutator motor 3 specified running referred to as " electrical netural axis ".In present embodiment 1, divisional plane 25a, 25b unshakable in one's determination are positioned at vertical with electrical netural axis and by the position of the plane at the center of rotor 8 or the position near it.The direction of rotation rear that divisional plane 25a, 25b unshakable in one's determination are positioned at rotor 8 relative to pole center line refers to: divisional plane 25a, 25b unshakable in one's determination are positioned at and make the pole center alignment direction contrary with the direction of rotation of rotor 8 rotate the position after the angle of acute angle.
First stator core 9A has: the magnetic pole piece 91A being positioned at divisional plane 25a side unshakable in one's determination; Be positioned at the magnetic pole piece 92A of divisional plane 25b side unshakable in one's determination; And the winding installation portion 93A between magnetic pole piece 91A, 92A.Second stator core 9B has: the magnetic pole piece 91B being positioned at divisional plane 25b side unshakable in one's determination; Be positioned at the magnetic pole piece 92B of divisional plane 25a side unshakable in one's determination; And the winding installation portion 93B between magnetic pole piece 91B, 92B.Magnetic pole piece 91A, 92A, 91B, 92B are in the arc-shaped centered by the rotating shaft of rotor 8.At the winding installation portion 93A of the first stator core 9A and the winding installation portion 93B of the second stator core 9B, be wound with excitation winding 10 across insulating element 24.Voussoir 23 is utilized to prevent the armature winding 17 being wound in rotor core 12 across insulating element 22 from coming off.
As shown in Figure 3, the magnetic pole piece 91A of the first stator core 9A and the magnetic pole piece 92B of the second stator core 9B forms the magnetic pole 26a of a side of stator core 9.The magnetic pole piece 92A of the first stator core 9A and the magnetic pole piece 91B of the second stator core 9B forms the magnetic pole 26b of the opposing party of stator core 9.The inner circumferential side of magnetic pole 26a, 26b is opposed with rotor 8 across the space 20 of regulation.Link the central authorities of the length of the magnetic pole 26a in the circumferential direction centered by the rotating shaft of rotor 8, be equivalent to pole center line with the straight line of the central authorities of the length of the magnetic pole 26b in the circumferential direction centered by the rotating shaft of rotor 8.In present embodiment 1, divisional plane 25a, 25b unshakable in one's determination tilt relative to pole center line.But, be not limited to this structure, divisional plane 25a, 25b unshakable in one's determination also can be made to be positioned at the position of pole center line.
First stator core 9A and the second stator core 9B has the shape bloated laterally in the position in the direction substantially vertical relative to pole center line.Utilize the shape that this bloats, form winding installation portion 93A, 93B of reeling for excitation winding 10.Winding installation portion 93A, 93B, compared with magnetic pole piece 91A, 92A, 91B, 92B, are positioned at the position of the distance of the rotating shaft apart from rotor 8.Between winding installation portion 93A and the periphery of rotor 8, be formed with region 30, between winding installation portion 93B and the periphery of rotor 8, be formed with region 31.Excitation winding 10 uses region 30 and clips winding installation portion 93A and be positioned at the region 32 of the opposite side in region 30, and by the mode of Circular Winding, is arranged on around winding installation portion 93A.Equally, excitation winding 10 uses region 31 and clips winding installation portion 93B and be positioned at the region 33 of the opposite side in region 31, and by the mode of Circular Winding, is arranged on around winding installation portion 93B.
The coiling direction of excitation winding 10 is shown with the round dot mark in Fig. 2 and fork mark.Round dot mark represents the flowing from the inboard of paper towards the nearby electric current of side, and fork mark represents the flowing from the nearby side of paper towards the electric current of inboard.The coiling direction of excitation winding 10 also can be the combination each other in the direction contrary with the example of Fig. 2.In addition, as the method for winding of excitation winding 10, except Circular Winding, also there is following method: avoid interference between rotor 8 and from region 30 the roundabout region 31 that transits to, and the interference avoided in the axial opposition side of the rotation of rotor 8 between rotor 8 and be back to region 30 from the roundabout transition in region 31, and this is carried out repeatedly the number of turn that specifies.The method compared with Circular Winding, even if having the advantage not using region 32,33 also harmless.On the other hand, there is following shortcoming in the method: be difficult to carry out permutation coiling, and winding length is elongated due to the roundabout shape of the end winding for avoiding the interference between rotor 8.Therefore, usual Circular Winding is that the better case selected is more.
The magnetic flux produced by excitation winding 10 between magnetic pole 26a, 26b along the direction of pole center line.Electrical netural axis is the axle relative to direction at a right angle, the direction of following resultant flux, and this resultant flux is the resultant flux of magnetic flux and the magnetic flux produced by armature winding 17 produced by excitation winding 10.The right angle orientation of electrical netural axis offsets relative to the direction of rotation rear of pole center line towards rotor 8.Thus, the angle between the position of divisional plane 25a, the 25b unshakable in one's determination at 2 positions and pole center line sets according to the balance of the magnetic flux produced respectively by excitation winding 10 and armature winding 17.Specifically, the decisions such as the result that electromagnetic field is resolved or trial-production is evaluated can be used.
Stator core 9 is by forming stacked for the grain-oriented magnetic steel sheet 94 of multiple band shapes after bending machining fixing.The long side direction of the grain-oriented magnetic steel sheet 94 of this band shape is direction of easy axis.In addition, the normal in the face of stacked all directions electromagnetic steel plate 94 and the rotational axis vertical of rotor 8.That is, observe from the rotating shaft direction of rotor 8, the stacked direction of grain-oriented magnetic steel sheet 94 is substantially vertical with the long side direction of the magnetic circuit of stator core 9.In addition, the direction of easy axis of grain-oriented magnetic steel sheet 94 is the direction along magnetic circuit.By suitable with the magnetic path width (width of magnetic pole and yoke) of the stator core 9 when observing from the rotating shaft direction of rotor 8 for the thickness after stacked for grain-oriented magnetic steel sheet 94.In addition, the length of the width of banded grain-oriented magnetic steel sheet 94 and the length of short side direction and the stator core 9 on the rotating shaft direction of rotor 8 is suitable.
The grain-oriented magnetic steel sheet 94 forming multiple band shapes of the first stator core 9A is continuous in the mode arriving magnetic pole piece 92A from magnetic pole piece 91A via winding installation portion 93A respectively.Equally, the grain-oriented magnetic steel sheet 94 forming multiple band shapes of the second stator core 9B is continuous in the mode arriving magnetic pole piece 92B from magnetic pole piece 91B via winding installation portion 93B respectively.
Fig. 4 is the example of the magnetic flux line chart of being resolved the commutator motor 3 of the present embodiment 1 obtained by electromagnetic field.As shown in Figure 4, long side direction and the direction of easy axis of magnetic flux line all along grain-oriented magnetic steel sheet 94 except near divisional plane 25a, 25b unshakable in one's determination of stator core 9.Even if the bending part particularly between magnetic pole piece 91A, 92A and winding installation portion 93A and the bending part between magnetic pole piece 91B, 92B and winding installation portion 93B, the direction of magnetic flux and the long side direction of grain-oriented magnetic steel sheet 94 and direction of easy axis also almost consistent.Although the having excellent magnetic properties of grain-oriented magnetic steel sheet 94 direction of easy axis, the magnetic characteristic of its right angle orientation is poor.The commutator motor 3 of 1 according to the present embodiment, the Segmentation Number without the need to increasing stator core 9 just can improve the consistent degree between the direction of the magnetic flux of stator core 9 and the direction of easy axis of grain-oriented magnetic steel sheet 94.Thus, in stator core 9, the magnetic characteristic of an only excellent side of grain-oriented magnetic steel sheet 94 mainly can be applied flexibly, therefore, it is possible to the efficiency realizing magnetic loop improves.As a result, the efficiency that can realize commutator motor 3 and electric blowing machine 1 improves.
And, in present embodiment 1, observe from the rotating shaft direction of rotor 8, divisional plane 25a, 25b unshakable in one's determination of stator core 9 are positioned at the position offset towards the direction of rotation rear of rotor 8 relative to pole center line, near the right angle orientation being particularly positioned at electrical netural axis, following effect can be obtained thus.As shown in Figure 4, the straight line of divisional plane 25a, 25b unshakable in one's determination that magnetic flux line clips near the right angle orientation that links and be positioned at electrical netural axis be divided in left side around loop with on right side around this two-way of loop.Therefore, magnetic flux is without divisional plane 25a, 25b unshakable in one's determination.Thus, in present embodiment 1, reliably can suppress the impact that the efficiency caused through the divisional plane of stator core 9 because of magnetic flux reduces, therefore the efficiency of magnetic loop improves further.
In addition, near divisional plane 25a, 25b unshakable in one's determination, magnetic flux density is low, even if therefore the right angle orientation of divisional plane 25a, 25b unshakable in one's determination and electrical netural axis slightly offsets, its impact is also little.That is, even if the right angle orientation of divisional plane 25a, 25b unshakable in one's determination and electrical netural axis slightly offsets, also the effect identical with above-mentioned effect can be obtained.Thus, even if the variation of the balance of the magnetic flux caused due to the variation etc. of load in operating because of commutator motor 3 and cause electrical netural axis to offset a little, also above-mentioned effect can be reached.In addition, also can by the rigidity of stator core 9 improve or commutator motor 3 assembleability raising etc. for the purpose of, after the installation of excitation winding 10, the methods such as welding or bonding are used to engage the first stator core 9A and the second stator core 9B at divisional plane 25a, 25b unshakable in one's determination.Even if also little on the impact of magnetic flux when engaging by this way, therefore, it is possible to obtain the effect identical with above-mentioned effect.
In addition, along with the rotation of rotor 8, magnetic flux line rotates relatively relative to rotor core 12.Therefore, preferred rotor iron core 12 is made up of non-oriented electromagnetic steel sheet having.Namely rotor core 12 is formed preferably by by multiple non-oriented electromagnetic steel sheet havings along stacked the fixing in rotating shaft direction of rotor 8.
In addition, in present embodiment 1, stator core 9 is split into the first stator core 9A and the second stator core 9B, easily can carry out the permutation coiling of excitation winding 10 thus.Fig. 5 is the example of automaton that is the schematic diagram of flying fork type coil winding machine that the permutation coiling implementing excitation winding 10 is shown.Flying fork type coil winding machine shown in Fig. 5 has: the setting tool unshakable in one's determination 27 fixing the first stator core 9A or the second stator core 9B; And the flying trident arm 28 possessed in front end the ozzle 29 that line 34 guides.Setting tool 27 unshakable in one's determination, in the mode making the rotating shaft of flying trident arm 28 consistent with the central shaft of winding installation portion 93A or 93B, fixes the first stator core 9A or the second stator core 9B.Line 34 passes through in flying trident arm 28, and is exported by from ozzle 29.The direction of its rotating shaft of rotation edge, flying trident arm 28 limit is moved.By utilizing this flying fork type coil winding machine that line 34 is wound in the winding installation portion 93A of the first stator core 9A or the winding installation portion 93B of the second stator core 9B, excitation winding 10 can be formed.By synchronously controlling the rotation of flying trident arm 28 and rotating axial movement, carry out the control of the position of settling line 34.But line 34 uses copper electric wire or the aluminium electric wire of below diameter 2mm usually, and therefore rigidity is little.In addition, experience according to the distortion be inserted through ozzle 29, online 34 remain curved trace.Therefore, not straight from the outlet line 34 out of ozzle 29, exist and settle the position of line 34 to offset and the situation of permutation coiling disorder from target location.In order to suppress this phenomenon, ozzle 29 is more near better with the face of arrangement line 34.Thus, excitation winding about 10 space open and the situation that ozzle 29 can get close to is suitable for permutation coiling.In present embodiment 1, stator core 9 is split into the first stator core 9A and the second stator core 9B, and ozzle 29 can be made thus close to winding installation portion 93A or 93B, therefore, it is possible to easily and correctly carry out the permutation coiling of excitation winding 10.In addition, even if when adopt ozzle 29 1 side fixed and makes that the first stator core 9A or the second stator core 9B mono-side rotate, so-called main shaft winding mode, situation is also identical, also can obtain the effect identical with above-mentioned effect.
Execution mode 2.
Next, with reference to Fig. 6 ~ Fig. 8, execution mode 2 of the present utility model is described, by with the difference of above-mentioned execution mode 1 centered by be described, identical label is marked to same section or considerable part and omits the description.
Fig. 6 is the cutaway view of the major part of the commutator motor 3 observing present embodiment 2 from side, the rotation of rotor 8 axial air blast portion 2.Fig. 7 is only by figure that stator core 9 extracts from Fig. 6.As shown in Fig. 6 and Fig. 7, in present embodiment 2, in magnetic pole piece 91A, 92A, 91B, 92B of stator core 9, along with close to divisional plane 25a, 25b unshakable in one's determination, the number of plies of stacked grain-oriented magnetic steel sheet 94 reduces gradually.In addition, in magnetic pole piece 91A, 92A, 91B, 92B of stator core 9, the end 941 of multiple layers of grain-oriented magnetic steel sheet 94 is opposed with rotor 8 respectively.That is, the end 941 of each layer of stacked grain-oriented magnetic steel sheet 94 is formed and the opposed faces of rotor 8 and the inner peripheral surface of stator core 9.The layer of the inner side of magnetic pole piece 91A, 92A, 91B, 92B, then the end 941 of grain-oriented magnetic steel sheet 94 and the distance between divisional plane 25a, 25b unshakable in one's determination larger.Close to divisional plane 25 unshakable in one's determination
a, 25b, then the magnetic path width of stator core 9 diminishes more gradually.
In present embodiment 2, according to above structure, magnetic flux line interval each other becomes more even, magnetic flux density in each grain-oriented magnetic steel sheet 94 also becomes more even, therefore, compared with execution mode 1, the consistent degree of the direction of magnetic flux and the direction of easy axis of grain-oriented magnetic steel sheet 94 can be improved further.In present embodiment 2, divisional plane 25a, 25b unshakable in one's determination tilt relative to pole center line.But, be not limited to such structure, divisional plane 25a, 25b unshakable in one's determination also can be made to be positioned at the position of pole center line.Even if when making divisional plane 25a, 25b unshakable in one's determination be positioned at the position of pole center line, by being formed as the structure more reduced close to the number of plies of the then stacked grain-oriented magnetic steel sheet 94 of divisional plane 25a, 25b unshakable in one's determination, the effect similar with above-mentioned effect can be obtained.In present embodiment 2, be preferably configured to: along with close to divisional plane 25a, 25b unshakable in one's determination, from the layer of the inner side of stacked grain-oriented magnetic steel sheet 94, layer reduces successively.
Fig. 8 is the example of the magnetic flux line chart of being resolved the commutator motor 3 of the present embodiment 2 obtained by electromagnetic field.As shown in Figure 8, the straight line of divisional plane 25a, 25b unshakable in one's determination that magnetic flux line clips near the right angle orientation that links and be positioned at electrical netural axis be divided in left side around loop with on right side around this two-way of loop.The magnetic flux line transitting to stator core 9 at the position close to divisional plane 25a unshakable in one's determination from rotor core 12 transits to rotor core 12 at the position close to divisional plane 25b unshakable in one's determination from stator core 9.The magnetic flux line transitting to stator core 9 at the position away from divisional plane 25a unshakable in one's determination from rotor core 12 transits to rotor core 12 at the position away from divisional plane 25b unshakable in one's determination from stator core 9.Thus, the radical of the magnetic flux line in magnetic pole 26a, 26b is few at the position close to divisional plane 25a, 25b unshakable in one's determination, and increases gradually along with away from divisional plane 25a, 25b unshakable in one's determination.In present embodiment 2, close to divisional plane 25a, 25b unshakable in one's determination then magnetic path width diminish more gradually, therefore magnetic flux line interval each other become evenly, magnetic flux density also become evenly.Grain-oriented magnetic steel sheet 94 stacked in, the end 941 being configured to make stacked each open steel plate becomes the inner peripheral surface with the opposed faces of rotor 8 and stator core 9, and the stacked number close to the part then grain-oriented magnetic steel sheet 94 of divisional plane 25a, 25b unshakable in one's determination tails off more gradually, can reliably realize above-mentioned effect thus.According to the present embodiment 2, compared with execution mode 1, the efficiency of magnetic loop can be improved further.As a result, the efficiency of commutator motor 3 and electric blowing machine 1 can be improved further.In addition, according to the present embodiment 2, compared with execution mode 1, the use amount of grain-oriented magnetic steel sheet 94 can be reduced, the lightweight of commutator motor 3 and electric blowing machine 1 can be realized.
Execution mode 3.
Next, execution mode 3 of the present utility model is described with reference to Fig. 9 and Figure 10, by with the difference of above-mentioned execution mode centered by be described, identical label is marked to same section or considerable part and omits the description.
Fig. 9 is the schematic diagram of the example of the cut-out operation of the commutator motor manufacture method that execution mode 3 of the present utility model is shown.Figure 10 is the schematic diagram of the example of the bending machining operation of the commutator motor manufacture method that execution mode 3 of the present utility model is shown.
The commutator motor manufacture method of present embodiment 3 is the methods manufacturing commutator motor 3 of the present utility model.The feature of the commutator motor manufacture method of present embodiment 3 is the operation manufacturing stator core 9.The operation manufacturing stator core 9 comprises the cut-out operation of grain-oriented magnetic steel sheet 94, bending machining operation and stacked fixed work order.
In cut-out operation, grain-oriented magnetic steel sheet 94 is cut into the length L of regulation and the rectangular band shape of width W.The long side direction of grain-oriented magnetic steel sheet 94 and the direction of length L are direction of easy axis.The length L of stacked each layer grain-oriented magnetic steel sheet 94 of the first stator core 9A or the second stator core 9B is corresponding with the length of magnetic path of each layer, and different separately.On the other hand, the width W of grain-oriented magnetic steel sheet 94 and the length of short side direction suitable with the length of the stator core 9 on the rotating shaft direction of rotor 8.Therefore, the width W of each layer grain-oriented magnetic steel sheet 94 is equal.Therefore, when manufacturing stator core 9, as shown in Figure 9, the mode suitably preparing to be wound with to become width W has carried out the coiled material 101 of the grain-oriented magnetic steel sheet 94 of the band shape of cutting processing in advance.Cut off the device 100 used in operation to have: from the uncoiler 102 of coiled material 101 outbound course electromagnetic steel plate 94; With the roll feeder 103 that pair of rolls clamping is carried from the grain-oriented magnetic steel sheet 94 carrying out that uncoiler 102 exports; By the cutter 104 that the minor face of the grain-oriented magnetic steel sheet 94 transported from roll feeder 103 cuts off; And by output mechanism 105 that the grain-oriented magnetic steel sheet 94 after being cut off by cutter 104 is discharged.The method cut off can be any means such as shearing, punching press.
The length L of grain-oriented magnetic steel sheet 94 is different according to which position be configured on the stacked direction of the first stator core 9A or the second stator core 9B.Therefore, in cut-out operation, need the length L changing grain-oriented magnetic steel sheet 94 for each.In order to corresponding with this situation, device 100 has the servomechanism of control cutter 104 relative to the relative position of the long side direction of grain-oriented magnetic steel sheet 94.That is, in the device 100 there is servomechanism, the amount of feeding that this servomechanism controls the grain-oriented magnetic steel sheet 94 determined by the anglec of rotation of the roller of roll feeder 103 and the opportunity that cutter 104 is fallen.By controlling cutter 104 relative to the relative position of the long side direction of grain-oriented magnetic steel sheet 94, the length L of grain-oriented magnetic steel sheet 94 can be controlled.According to the cut-out operation using this device 100, productivity ratio all different grain-oriented magnetic steel sheet of each Zhang Changdu L 94 can be manufactured well.
In addition, cutter 104 is not limited to present embodiment 3 structure relative to the structure of the servomechanism of the relative position of the long side direction of grain-oriented magnetic steel sheet 94 is controlled.Replace the structure of present embodiment 3, also can be formed as the structure of the long side direction movement making cutter 104 along grain-oriented magnetic steel sheet 94.
Bending machining operation is the operation by be carried out bending machining with regulation bending radius at the bending position of regulation by the grain-oriented magnetic steel sheet 94 after cutting off operation and being cut off.As the method for bending machining, roll-type bends proper.In bending machining operation, as shown in Figure 10, utilize device 110 to carry out roll-type and bend, this device 110 possesses and clips grain-oriented magnetic steel sheet 94 by pair of rolls and carry out the roll feeder 112 carried and multiple bending machining roller 113.The bending position of grain-oriented magnetic steel sheet 94 and bending radius different according to which position be configured on the stacked direction of the first stator core 9A or the second stator core 9B.Therefore, in bending machining operation, need the bending position and the bending radius that change grain-oriented magnetic steel sheet 94 for each.In order to corresponding with this situation, device 110 has servomechanism, and this servomechanism controls the relative position of bending machining roller 113 relative to grain-oriented magnetic steel sheet 94.Namely, device 110 has servomechanism, and this servomechanism controls the amount of feeding of the grain-oriented magnetic steel sheet 94 determined by the anglec of rotation of the roller of roll feeder 112 and makes bending machining roller 113 relative to the amount of movement of roll feeder 112 along the above-below direction movement in Figure 10.By controlling to utilize roll feeder 112 to carry out the amount of feeding of the grain-oriented magnetic steel sheet 94 of feeding and bending machining roller 113 relative to the relative position of roll feeder 112, bending position and the bending radius of grain-oriented magnetic steel sheet 94 can be controlled.According to using the bending machining operation of this device 110, productivity ratio each bending position and all different grain-oriented magnetic steel sheet 94 of bending radius can be manufactured well.
In addition, bending machining roller 113 is not limited to present embodiment 3 structure relative to the structure of the servomechanism of the relative position of grain-oriented magnetic steel sheet 94 is controlled.Replace the structure of present embodiment 3, also can be formed as making the roller of roll feeder 112 relative to the structure of bending machining roller 113 along the above-below direction movement in Figure 10.Therefore and improper in addition, such as, there is the punching type utilizing punch die and drift to carry out and bend in the method for the bending machining outside bending as roll-type, but in order to change bending position and bending radius, need to prepare multiple kinds of molds, cost uprises.
In stacked fixed work order, multiple grain-oriented magnetic steel sheets 94 formed through cut-out operation and bending machining operation are fixed with stacked state each other.As fixing method, there is the methods such as welding, bonding.By above method, can be cheap and manufacture stator core 9 at high speed.In the commutator motor manufacture method of present embodiment 3, except manufacturing the operation of stator core 9, known method can be applied.
Execution mode 4.
Next, with reference to Figure 11, execution mode 4 of the present utility model is described, by with the difference of above-mentioned execution mode centered by be described, identical label is marked to same section or considerable part and omits the description.
Figure 11 is the cutaway view of the electric dust collector that execution mode 4 of the present utility model is shown.As shown in figure 11, the electric dust collector 40 of present embodiment 4 has: the main body of dust collector 41 being equipped with electric blowing machine 1 of the present utility model; Inside to main body of dust collector 41 sucks the suction inlet 42 of extraneous air; Collect the dust collecting part 43 of the dust be sucked in the air of the inside of main body of dust collector 41; And by outlet 44 that the air being sucked into the inside of main body of dust collector 41 is discharged to the outside of main body of dust collector 41.Electric blowing machine 1 produces and is sucked from suction inlet 42 and the air stream of discharging from outlet 44 by extraneous air.The outside of air via dust collecting part 43, electric blowing machine 1 and outlet 44 to main body of dust collector 41 sucked from suction inlet 42 is discharged.
By in the above described manner electric blowing machine 1 being assembled in electric dust collector 40, electric dust collector 40 also can improve by implementation efficiency.In addition, as an example, situation electric blowing machine 1 being equipped on electric dust collector 40 is illustrated, but is not limited to electric dust collector 40 for the product that electric blowing machine 1 of the present utility model is assembled, such as, also can be assembled in other products such as drying apparatus for hands.In addition, the purposes of commutator motor 3 of the present utility model is not limited to electric blowing machine 1 and electric dust collector 40, such as, also can be applied to electric tool, blender, coffee grinder etc.
Claims (6)
1. a commutator motor,
This commutator motor possesses:
Stator, this stator has stator core and excitation winding; And
Rotor, this rotor has armature winding and is configured at the inner side of described stator,
The feature of described commutator motor is,
Described stator core is formed by the grain-oriented magnetic steel sheet of stacked band shape, directionality electromagnetic steel plate using long side direction as direction of easy axis,
The normal in the face of described grain-oriented magnetic steel sheet and the rotational axis vertical of described rotor,
Described stator core is split into the first stator core and the second stator core with divisional plane unshakable in one's determination for boundary,
Observe from the rotating shaft direction of described rotor, described divisional plane unshakable in one's determination is positioned at the rear of the direction of rotation of described rotor relative to the pole center line of described stator.
2. commutator motor according to claim 1, is characterized in that,
Described stator core has:
Form the magnetic pole piece of magnetic pole; And
Winding installation portion, with described magnetic pole piece apart from the rotating shaft of described rotor distance compared with, described winding installation portion apart from the distance of the rotating shaft of described rotor,
Described excitation winding is installed on described winding installation portion.
3. commutator motor according to claim 1 and 2, is characterized in that,
Near the right angle orientation of electrical netural axis when described divisional plane unshakable in one's determination is positioned at the specified running of described commutator motor.
4. commutator motor according to claim 1 and 2, is characterized in that,
At the magnetic pole piece of described stator core, the end of multiple layers of described grain-oriented magnetic steel sheet is opposed with described rotor respectively.
5. an electric blowing machine, is characterized in that,
Described electric blowing machine possesses:
Commutator motor described in claim 1 or 2; And
Fan, this fan is driven by described commutator motor.
6. an electric dust collector, is characterized in that,
Described electric dust collector possesses electric blowing machine according to claim 5.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JPPCT/JP2013/080922 | 2013-11-15 | ||
| PCT/JP2013/080922 WO2015072018A1 (en) | 2013-11-15 | 2013-11-15 | Commutated motor, electric fan, electric vacuum cleaner, and commutated-motor manufacturing method |
| PCT/JP2014/078118 WO2015072299A1 (en) | 2013-11-15 | 2014-10-22 | Commutated motor, electric fan, electric vacuum cleaner, and commutated-motor manufacturing method |
| JPPCT/JP2014/078118 | 2014-10-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204205747U true CN204205747U (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420677677.4U Active CN204205747U (en) | 2013-11-15 | 2014-11-13 | Commutator motor, electric blowing machine and electric dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204205747U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114258623A (en) * | 2019-08-21 | 2022-03-29 | 日本精工株式会社 | Direct drive motor |
-
2014
- 2014-11-13 CN CN201420677677.4U patent/CN204205747U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114258623A (en) * | 2019-08-21 | 2022-03-29 | 日本精工株式会社 | Direct drive motor |
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