CN102255417B - Holder stay fixing structure and motor with brush - Google Patents
Holder stay fixing structure and motor with brush Download PDFInfo
- Publication number
- CN102255417B CN102255417B CN201110204446.2A CN201110204446A CN102255417B CN 102255417 B CN102255417 B CN 102255417B CN 201110204446 A CN201110204446 A CN 201110204446A CN 102255417 B CN102255417 B CN 102255417B
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- Prior art keywords
- mentioned
- holder stay
- rivet
- bracket
- axle
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- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/14—Means for supporting or protecting brushes or brush holders
- H02K5/143—Means for supporting or protecting brushes or brush holders for cooperation with commutators
- H02K5/148—Slidably supported brushes
Abstract
A kind of holder stay fixing structure, rivet is used the holder stay for supporting the brush slipped with commutator to be fixed on the end bracket of motor with brush, in this holder stay fixing structure, the position making rivet insert of end bracket is provided with the cylindrical portion of the wide diameter portion based on buckling distortion bearing rivet.Its result, can provide a kind of holder stay fixing structure and motor with brush of damage when can prevent the assembling of holder stay.
Description
The application is denomination of invention is " holder stay fixing structure and motor with brush ", international filing date is on February 19th, 2008 and application number is the divisional application of the application for a patent for invention of 200880005343.X.
Technical field
The present invention relates to a kind of holder stay fixing structure and utilize the motor with brush of this holder stay fixing structure.
The priority of No. 2007-38257, Japanese Patent Application and No. 2007-38258, the Japanese Patent Application of filing an application in Japan based on February 19th, 2007 is advocated in this case, and quotes its content at this.
Background technology
In the past, such as, fan motor as the radiator cooling being used to automobile has motor with brush.This motor with brush has the yoke portion being provided with the cylindrical shape of multiple permanent magnet at inner peripheral surface and the bracket closed by the peristome in this yoke portion, by yoke portion and carriage rotation support armature freely.The commutator that armature has armature coil, is connected with this armature coil.Commutator contacts and brush can be set relatively movably.This brush is for the parts to armature coil supply electric power, is supported on holder stay via brush carrier.
Holder stay is formed roughly discoid, and is fixed on bracket by rivet.That is, in order to be fixed on bracket by holder stay, first, bracket be overlapped with holder stay, rivet be inserted in the rivet hole formed respectively.Then, the most advanced and sophisticated conquassation of the axle of rivet is made its buckling distortion (plastic deformation).So the tip of the axle of rivet deforms and radius vector direction outer expandable, form flange part, and, be inserted through axle in rivet hole overall expanding be drum type.Thus, holder stay relative to bracket axially and the movement in direction, footpath be restricted, holder stay is fixed on bracket (such as with reference to patent documentation 1, patent documentation 2, patent documentation 3).
Patent documentation 1: Japanese Unexamined Patent Publication 2002-142403 publication
Patent documentation 2: Japanese Unexamined Patent Publication 6-165443 publication
Patent documentation 3: Japanese Patent Publication 5-43758 publication
But holder stay is formed by the resin with insulating properties in order to ensure the insulation of brush and bracket, in addition, also need to consider thermal endurance, so most cases adopts the thermosetting resin of such as phenolic resins etc.Therefore, if by expanding for the axle portion of rivet in the rivet hole of holder stay, be then extruded expansion outside the rivet hole radius vector direction of holder stay, there is possibility because stress causes holder stay to damage.
Summary of the invention
The present invention proposes in view of the above circumstances, and object is to provide a kind of holder stay fixing structure and motor with brush, can prevent the damage of holder stay when utilizing rivet to be fixed on bracket by holder stay.
In order to solve above-mentioned problem, a kind of fixture construction of holder stay is provided in the present invention, use rivet that the holder stay for supporting the brush slipped with commutator is fixed on bracket, wherein, the position making rivet insert of bracket is provided with the cylindrical portion of the wide diameter portion that the buckling distortion that bears rivet causes.
By forming in this wise, the rivet hole of holder stay exceedingly can not be extruded expansion, cylindrical portion can be utilized bear the wide diameter portion of the rivet based on buckling distortion, holder stay can be fixed on bracket.
Now, also cylindrical portion can be set in the mode erected from bracket to holder stay, and form the recess of storage cylindrical portion on holder stay.
By forming in this wise, in the recess be formed on holder stay if the cylindrical portion of bracket be configured in, then cylindrical portion can be made to be configured near the position the most expanding of rivet.
In addition, in order to solve above-mentioned problem, in the present invention, rivet is formed the first axle part and be arranged on the first axle part tip and by ladder difference and the second axle part of undergauge, holder stay forms first rivet hole corresponding with the first axle part, and form second rivet hole as above-mentioned cylindrical portion corresponding with the second axle part on bracket.Further, the first axle part of rivet is inserted in the first rivet hole of holder stay, and the second axle part of rivet is inserted in the second rivet hole of bracket.
By forming in this wise, the buckling strength of the second axle part of rivet can be made more weak than the first axle part of rivet.Therefore, when utilizing rivet to be fixed on bracket by holder stay, even if the first axle part also can be made to be out of shape hardly the most advanced and sophisticated conquassation of rivet, the second axle part is out of shape.In addition, because being born the wide diameter portion of the second axle part based on buckling distortion by the second rivet hole, so the rivet hole of expandable stent support plate exceedingly can not be extruded, holder stay can be fixed on bracket.
In addition, the invention provides a kind of motor with brush, have and use above-mentioned holder stay fixing structure and be fixed with the bracket of holder stay and the yoke portion of bracket is installed, and in yoke portion, be rotatably configured with the armature with above-mentioned commutator.
According to the present invention, not excessively can extrude the rivet hole of expandable stent support plate, can the wide diameter portion based on the rivet of buckling distortion be born by cylindrical portion and holder stay is fixed on bracket.Therefore, it is possible to prevent excessive masterpiece to be used on holder stay, damage during holder stay fixing can be prevented.
Now, in the recess be formed on holder stay if the cylindrical portion of bracket be configured in, then cylindrical portion can be made to be configured near the position the most expanding of rivet.Therefore, it is possible to more efficiently born the wide diameter portion of rivet by cylindrical portion, holder stay reliably can be fixed on bracket.
In addition, when rivet is provided with the first axle part and the second axle part than the first axle part more undergauge, the buckling strength of the second axle part of rivet can be made more weak than the first axle part of rivet.Therefore, when utilizing rivet to be fixed on bracket by holder stay, even if the tip of conquassation rivet also can make the first axle part be out of shape hardly, the second axle part is out of shape.Thus, on excessive masterpiece can be prevented to be used in holder stay that the first axle part inserts, damage during holder stay fixing can be prevented.
In addition, according to the present invention, a kind of motor with brush can be provided, because damage when can prevent holder stay fixing, so assembling operation can be made to improve.
Accompanying drawing explanation
Fig. 1 is the longitudinal section of the formation of the motor with brush representing the first execution mode of the present invention.
Fig. 2 is the cutaway view of the A-A line along Fig. 1.
Fig. 3 is the stereogram of the rivet of the first execution mode of the present invention.
Fig. 4 is the cutaway view of the B-B line along Fig. 2.
Fig. 5 is the cutaway view of the C-C line along Fig. 4.
Fig. 6 is the key diagram of the permanent order of the rivet using the first execution mode of the present invention.
Fig. 7 is the stereogram of the rivet of the second execution mode of the present invention.
Fig. 8 is the cutaway view corresponding with the part of the B-B line along Fig. 2 of the second execution mode of the present invention.
Fig. 9 is the key diagram of the permanent order of the rivet using the second execution mode of the present invention.
Description of reference numerals
1 motor with brush
2 yoke portions
6 armatures
13 commutators
17 end bracket (bracket)
20 holder stays
22 brushes
28,128 rivets
36,136 wide diameter portions
40 cylindrical portion
42 recesses
129 end bracket side rivet holes (the second rivet hole)
130 holder stay side rivet holes (the first rivet hole)
132 the first axle parts
133 the second axle parts
Embodiment
Then, with reference to accompanying drawing, the first execution mode of the present invention is described.
As shown in Figure 1 and Figure 2, motor with brush 1 is the drive source of electric equipment products (such as radiator fan) mounted on a vehicle.Motor with brush 1 has the armature 3 be rotatably arranged in the yoke portion 2 of round-ended cylinder shape, is closed the peristome 2c in yoke portion 2 by end bracket 17.
The support plate 9 used when motor with brush 1 being fixed on outside is given prominence to from the perisporium 2a in yoke portion 2, on the other hand, is provided with multiple permanent magnet 4 along the circumferential direction side by side in the inner side of perisporium 2a.In addition, at end (bottom) 2b in yoke portion 2, boss portion 10 is formed at substantial middle place, direction, footpath.In this boss portion 10, form the inserting hole 11 of the rotating shaft 5 for inserting armature 3, and built with the bearing 12 for the rotatably end side of supporting rotating shaft 5.
Armature 3 comprises: be fixed on the armature core 6 in the outside of rotating shaft 5, the armature coil 7 be wrapped on armature core 6, be configured in the commutator 13 of another side of rotating shaft 5.Armature core 6 is parts of the metallic plate 8 along the stacked multiple ring-type of direction of principal axis.The tooth of multiple T font is formed radially at the peripheral part of armature core 6, and at the winding 16 of this package enamel covering.Thus, multiple armature coil 7 is formed in the periphery of armature core 6.
The outer peripheral face of commutator 13 is provided with the commutator segment 14 formed by electric conducting material.Commutator segment 14 is made up of the sheet metal of the tabular axially grown, and equally spaced fixes side by side along the circumferential direction under the state reciprocally insulated.In the end of armature core 6 side of each commutator segment 14, be integrally formed with commutator segment 14 with the (commutator) riser 15 of the form of turning back to outside diameter bending.(commutator) riser 15 reels respectively the winding starting end of the winding 16 of drawing from armature coil 7 and winding terminating end, and is fixed by melting.Thus, commutator segment 14 and the armature coil 7 corresponding with it are electrically connected.
End bracket 17 is metal and is formed as roughly discoid, gives prominence to be formed with boss portion 18 at substantial middle place, direction, footpath.In this boss portion 18, press-in is fixed for the bearing 19 of another side of rotatably supporting rotating shaft 5.In addition, in the inner side (downside in Fig. 1) of end bracket 17, holder stay 20 is installed.
Holder stay 20 is resin-made and is formed as roughly discoid, is equally spaced fixed with four brush carriers 21 along the circumferential direction.In brush carrier 21, with easy accessly respectively built with brush 22 under the state exerted a force via spring 23.Owing to being subject to the force of spring 23, the point of these brushes 22 can contact with the commutator segment 14 of commutator 13 relatively movably.
In addition, each brush 22 is connected with each joint 26 be arranged on distribution panelboard 25 via pigtail 24 respectively.These joints 26 are electrically connected with connector 27 via not shown pattern.This connector 27 is connected with the connector (not shown) be connected with not shown external power source.That is, from the electric power of external power source, be supplied to each brush 22 via joint 26 and pigtail 24 etc., and be supplied to commutator 13 by from these brushes 22.
At this, two rivets 28,28 are used to be fixed in end bracket 17 by holder stay 20.
As shown in Figure 2, rivet 28 to be arranged on centered by commutator 13 on point-symmetric two positions.In addition, as shown in Figure 3, rivet 28 is formed by aluminium etc., and roughly discoid head 31 is integrally formed with the axle portion 32 of the most advanced and sophisticated side (downside in Fig. 3) being arranged on this head 31.
In end bracket 17, the position corresponding with rivet 28 forms the protuberance 37 overlooked as circular outstanding to holder stay 20 side.At the substantial middle place, direction, footpath of protuberance 37, cylindrical portion 40 with from the mode of end bracket 17 to holder stay 20 is edge-on by formation such as plunging processing.Cylindrical portion 40 is parts that the axle portion 32 of rivet 28 inserts, and its internal diameter E2 is set to roughly consistent with the diameter of axle E1 in the axle portion 32 of rivet 28.
On the other hand, on holder stay 20, the position corresponding with rivet 28 forms the recess 34 overlooking circular of the head 31 receiving rivet 28.The rivet hole 30 for inserting rivet 28 is formed at the substantial middle place, direction, footpath of recess 34.
As shown in details in Figure 5, on rivet hole 30, the direction of principal axis equally spaced formed along the circumferential direction along rivet hole 30 extends and multiple protuberance 30a outstanding inside radius vector direction.Protuberance 30a is to be formed as overlooking from direction of principal axis being roughly triangle along with the mode that tip gently attenuates inside direction, footpath.
The aperture E3 of rivet hole 30 is set to slightly larger than the diameter of axle E1 in the axle portion 32 of rivet hole 28.That is, the aperture E3 of rivet hole 30 is set to larger than the internal diameter E2 of the cylindrical portion 40 of end bracket 17, and is set as corresponding with the maximum diameter of the wide diameter portion 36 of rivet 28 described later.On the other hand, the diameter of a circle E4 linking the summit of protuberance 30a is set to roughly consistent with the diameter of axle E1 in the axle portion 32 of rivet 28.
In addition, the recess 42 of storage cylindrical portion 40 is formed in end bracket 17 side of rivet hole 30.
Recess 42 is formed as overlooking circular, has perisporium 42a and diapire 42b.The depth H 1 of recess 42 be set to than cylindrical portion 40 to erect height H 2 large, its result, can make the composition surface 20a of holder stay 20 abut with the protuberance 37 of end bracket 17.
In addition, the diameter E5 of perisporium 42a is set to slightly larger than the external diameter E6 of cylindrical portion 40, its result, even if when causing being extruded expansion outside cylindrical portion 40 radius vector direction in the expanding distortion in axle portion 32 due to rivet 28, the recess 42 of cylindrical portion 40 and holder stay 20 is not also interfered mutually.
Inserting on the rivet 28 in the cylindrical portion 40 of the end bracket 17 formed in this wise and the rivet hole 30 of holder stay 20, formed the flange part 35 of buckling distortion at the tip in axle portion 32 by conquassation, and form the wide diameter portion 36 (with reference to Fig. 4) of drum type than tip by base end side.That is, by the head 31 of rivet 28 and flange part 35 confinement end bracket 17 and holder stay 20 mutual movement axially.
On the other hand, the wide diameter portion 36 of rivet 28 touches in the mode of the cylindrical portion 40 extruding expanded end bracket 17, and only press slightly the protuberance 30a be formed in the rivet hole 30 of holder stay 20, thus, the mutual movement in confinement end bracket 17 and holder stay 20 radius vector direction.So, by the buckling distortion of rivet 28, holder stay 20 can not rock relative to end bracket 17, can reliably fix.
In addition, cylindrical portion 40, because be configured in the recess 42 that is formed on holder stay 20, so near the position that the axle portion 32 being positioned at rivet 28 is the most expanding (substantial middle between the head 31 in the axle portion 32 of rivet 28 and flange part 35).
Then, illustrate that holder stay 20 is fixed on the order in end bracket 17 by use rivet 28.
As shown in Figure 6, first, make the position of the cylindrical portion 40 of end bracket 17 and the rivet hole 30 of holder stay 20 involutory and make both 17,20 coincidences.Then, by the axle portion 32 of rivet 28 towards holder stay 20 side, rivet 28 is inserted into rivet hole 30 and cylindrical portion 40 from holder stay 20 side.
Be inserted into the rivet 28 in rivet hole 30 and cylindrical portion 40, head 31 is configured in the recess 34 of holder stay 20, and on the other hand, the most advanced and sophisticated side in axle portion 32 is from the outstanding state of end bracket 17.Further, control head 31 by not shown fixture etc. not extract out in this condition to make rivet 28, along the tip (carrying out conquassation to the arrow D direction in Fig. 6) in direction of principal axis conquassation axle portion 32.
So, as shown in Figure 4, in the mode of widening outside radius vector direction, the most advanced and sophisticated buckling distortion in axle portion 32 is formed flange part 35.In addition, meanwhile, outside base end side (being inserted into the part of rivet hole 30 and cylindrical portion 40) the radius vector direction in axle portion 32, drum type ground bulging, forms wide diameter portion 36.Now, cylindrical portion 40 is configured near position the most expanding, the axle portion 32 of rivet 28, and therefore, the protuberance 30a of rivet hole 30 is only pressed by the wide diameter portion 36 of rivet 28 slightly, and cylindrical portion 40 bears the load of buckling of the wide diameter portion 36 from rivet 28.
Therefore, rivet hole 30 exceedingly can not be extruded expansion, can prevent the damage of holder stay 20.On the other hand, cylindrical portion 40 is the metal that rigidity is high, therefore, even if cause due to rivet 28 buckling distortion by expanding for axle portion 32 and outside radius vector direction extruding expansion cylindrical portion 40, cylindrical portion 40 (end bracket 17) also can not be damaged.Thus, end bracket 17 and holder stay 20 utilize fixedly completing of rivet 28.
According to the present embodiment, end bracket 17 is formed the cylindrical portion 40 in the axle portion 32 for inserting rivet 28, therefore, the load of buckling of the wide diameter portion 36 from the rivet 28 based on buckling distortion can be born by this cylindrical portion 40, holder stay 20 reliably can be fixed in end bracket 17.On the other hand, in the rivet hole 30 of holder stay 20, protuberance 30a is only pressed by the wide diameter portion 36 of rivet 28 slightly.
Therefore, the rivet hole 30 of holder stay 20 can not be expanded.Its result, can prevent excessive masterpiece to be used on holder stay 20, can prevent damage during holder stay 20 fixing.
In addition, cylindrical portion 40 is to be formed from the mode of end bracket 17 to holder stay 20 is edge-on, on the other hand, holder stay 20 is formed the recess 42 of storage cylindrical portion 40, therefore, it is possible to make cylindrical portion 40 be configured near the position (substantial middle between the head 31 in axle portion 32 and flange part 35) the most expanding of rivet 28.Therefore, it is possible to more efficiently born the wide diameter portion 36 of rivet by cylindrical portion 40, holder stay 20 reliably can be fixed in end bracket 17.
And then, the damage during assembling of holder stay 20 can be prevented, and holder stay 20 reliably can be fixed in end bracket 17, therefore, it is possible to make the assembling operation of motor with brush 1 improve.
In addition, in the above-described embodiment, the cylindrical portion 40 that formed by plunging processing etc. in end bracket 17 is described with situation about being formed from the mode of end bracket 17 to holder stay 20 is edge-on.But the structure of this part is not limited thereto, also can be configured to: cylindrical portion 40 and end bracket 17 split are formed, and wait cylindrical portion 40 is integrated with end bracket 17 by welding.
And then, in the above-described embodiment, describe cylindrical portion 40 to be formed from the mode of end bracket 17 to holder stay 20 is edge-on, the situation of the recess 42 of storage cylindrical portion 40 is formed on the other hand on holder stay 20, but the structure of this part is not limited thereto, as long as cylindrical portion 40 is positioned at the buckling on the position of load of wide diameter portion 36 end bracket 17 being configured in and can bearing from rivet 28.
Then, with reference to accompanying drawing, the second execution mode of the present invention is described.In addition, in following record, for the parts with the formation identical with the first above-mentioned execution mode, mark the symbol identical with the first execution mode, the description thereof will be omitted.
In this embodiment, two rivets 128,128 are used to be fixed in end bracket 17 by holder stay 20.That is, shown in Fig. 2 described above, rivet 128, to be arranged on centered by commutator 13 on point-symmetric two positions.In addition, as shown in Figure 7, rivet 128 is formed by aluminium etc., roughly discoid head 131, be arranged on the most advanced and sophisticated side (downside in Fig. 7) of this head 131 the first axle part 132, be arranged on this first axle part 132 most advanced and sophisticated side and by ladder difference and the second axle part 133 of undergauge is integrally formed.That is, such as, when the diameter of axle E11 of the first axle part 132 is set to about 3mm, the diameter of axle E12 of the second axle part 133 is set to about 2mm.
Identical with the first execution mode, in end bracket 17, the position corresponding with rivet 128 forms the protuberance 37 overlooked as circular outstanding to holder stay 20 side.In addition, at the substantial middle place, direction, footpath of protuberance 37, the end bracket side rivet hole 129 (the second rivet hole) for inserting rivet 128 is formed.The aperture of this end bracket side rivet hole 129 is set to the size corresponding with the diameter of axle E12 of the second axle part 133 of rivet 128.
On the other hand, on holder stay 20, identical with the first execution mode, the position corresponding with rivet 128 is formed the recess 34 overlooking circular of the head 31 receiving rivet 128.The holder stay side rivet hole 130 (the first rivet hole) for inserting rivet 128 is formed at the substantial middle place, direction, footpath of recess 34.
As above-mentioned Fig. 5 in detail shown in, in end bracket 17 vicinity of holder stay side rivet hole 130, identical with the first execution mode, the direction of principal axis equally spaced formed along the circumferential direction along holder stay side rivet hole 130 extends and multiple protuberance 130a outstanding inside radius vector direction.Protuberance 130a is to be formed as overlooking general triangular from direction of principal axis along with the mode that tip gently attenuates inside direction, footpath.
The aperture E13 of this holder stay side rivet hole 130 is set to slightly larger than the diameter of axle E11 of the first axle part 132 of rivet 128.
On the other hand, the diameter of a circle E14 linking the summit of protuberance 130a is set to roughly consistent with the diameter of axle E11 of the first axle part 132 of rivet 128.In addition, protuberance 130a is formed taper, to tilt inside the most advanced and sophisticated side (downside in Fig. 8) of rivet 128 slightly radius vector direction from head 131 side (upside in Fig. 8) of rivet 128.
Specifically, link the diameter of a circle E14 on the summit of protuberance 130a, be set to the size roughly consistent with the diameter of axle E11 of the first axle part 132 in head 131 side of rivet 128, be set to slightly less than the diameter of axle E11 of the first axle part 132 in the most advanced and sophisticated side (the second axle part 133 side) of rivet 128.Therefore, can not on holder stay 20 power of overaction, can the movement in the radius vector direction relative to end bracket 17 of limit bracket support plate 20.
Be inserted through on the rivet 128 in the end bracket side rivet hole 129 and holder stay side rivet hole 130 formed in this wise, form the flange part 135 carrying out conquassation and buckling distortion to the tip of this second axle part 133, and form the wide diameter portion 136 (with reference to Fig. 8) of the drum type of buckling distortion at the base end side (the first axle part 132 side) of the second axle part 133.
That is, by the head 131 of rivet 128 and flange part 135 confinement end bracket 17 and holder stay 20 mutual movement axially.In addition, the wide diameter portion 136 of rivet 128 touches with the mode and end bracket side rivet hole 129 that extrude expanded end bracket side rivet hole 129, thus the movement in the radius vector direction relative to holder stay 20 of confinement end bracket 17.So, rivet 128 buckling distortion, thus holder stay 20 can not rock relative to end bracket 17, can reliably fix.
Then, illustrate that holder stay 20 is fixed on the order in end bracket 17 by use rivet 128.
As shown in Figure 9, first, make the position of end bracket side rivet hole 129 and holder stay side rivet hole 130 involutory and make both 17,20 coincidences.Then, by the second axle part 133 of rivet 128 towards holder stay 20 side, rivet 128 is inserted into end bracket side rivet hole 129 and holder stay side rivet hole 130 from holder stay 20 side.
Be inserted into the rivet 128 in end bracket side rivet hole 129 and holder stay side rivet hole 130, become head 131 to be configured in the recess 34 of holder stay 20, on the other hand the most advanced and sophisticated side of the second axle part 133 be from the outstanding state of end bracket 17.Further, control head 131 by not shown fixture etc. and do not extract out in this condition to make rivet 128, and along the tip (carrying out conquassation to the arrow d direction in Fig. 9) of direction of principal axis conquassation the second axle part 133.
So, as shown in Figure 8, in the mode widened outside radius vector direction, the most advanced and sophisticated buckling distortion of the second axle part 133 is formed flange part 135.In addition, meanwhile, drum type ground bulging outside base end side (being inserted into the part of end bracket side rivet hole 129) the radius vector direction of the second axle part 133 and form wide diameter portion 136.
On the other hand, the diameter of axle of the first axle part 132 is set to larger than the second axle part 133, and buckling strength is higher than the second axle part 133.And the second axle part 133 is not by the first axle part 132 gently undergauge, be by ladder difference undergauge sharp.Therefore, load of buckling acts on the second axle part 133, and rivet 128 buckling distortion and absorb load of buckling in the portion, load of therefore buckling almost does not act on the first axle part 132.Thus, the first axle part 132 buckling distortion hardly.
In addition, by the second axle part 133 buckling distortion, end bracket side is extruded expansion outside rivet hole 129 radius vector direction, and end bracket side rivet hole 129 bears the load of buckling of the wide diameter portion 136 from rivet 128.That is, in the present embodiment, end bracket side rivet hole 129 plays the effect identical with the cylindrical portion 40 in above-mentioned execution mode 1.In addition, end bracket 17 is the metal higher than rivet 128 rigidity, and the end bracket 17 of therefore bearing from the load of buckling of wide diameter portion 136 can not be damaged.
Thus, fixedly the completing of use rivet 128 of end bracket 17 and holder stay 20.
Namely, according to above-mentioned execution mode, except the effect identical with above-mentioned execution mode 1, rivet 128 is by parts integrally formed to head 131, the first axle part 132, the second axle part 133, therefore, it is possible to make the buckling strength of the second axle part 133 of rivet 128 more weak than the first axle part 132 of rivet 128.Therefore, when using rivet 128 to be fixed in end bracket 17 by holder stay 20, even if the tip of conquassation rivet 128 also makes the first axle part 132 buckling distortion hardly, the second axle part 133 buckling distortion can be made.
Thus, the holder stay side rivet hole 130 that the first axle part 132 is inserted exceedingly can not be extruded expansion.Its result, can prevent excessive masterpiece to be used on holder stay side rivet hole 130, can prevent damage during holder stay 20 fixing.
In addition, protuberance 130a in holder stay side rivet hole 130 is formed in make head 131 side of rivet 128 roughly consistent with diameter of axle E11 and to make the most advanced and sophisticated side of rivet 128 mode slightly less than the diameter of axle E11 of the first axle part 132 be formed taper.Therefore, excessive power can not act on holder stay 20, can the movement in the radius vector direction relative to end bracket 17 of limit bracket support plate 20, the end bracket 17 that can interfix more reliably and holder stay 20.
And then, even if the tip of conquassation rivet 128 also makes the first axle part 132 buckling distortion of rivet 128 hardly, therefore hardly with the deflection considering the first axle part 132, the diameter of a circle E14 on the aperture E13 that can determine holder stay side rivet hole 130 and the summit linking protuberance 130a.That is, the size management of holder stay side rivet hole 130 can easily be carried out.
Further, damage during holder stay 20 fixing can be prevented, and holder stay 20 reliably can be fixed in end bracket 17, therefore, it is possible to make the assembling operation of motor with brush 1 improve.
And then, because be formed with protuberance 130a in holder stay side rivet hole 130, so, even if the first axle part 132 buckling distortion of rivet 128 is expanding, also can not bear this expanding part by holder stay side rivet hole 130 entirety, can only utilize protuberance 130a to bear.Therefore, it is possible to prevent the damage of holder stay 20 more reliably.
In addition, in the above-described embodiment, describe following situation: the aperture E13 of head 131 side of holder stay side rivet hole 130 is set to the size roughly consistent with the diameter of axle E11 of the first axle part 132, and the aperture E14 of most advanced and sophisticated side is set to slightly less than the diameter of axle E11 of the first axle part 132, and is formed as taper.But, the structure of this part is not limited thereto, also the first axle part 132 of rivet 128 can be formed as taper from base end side (upside Fig. 7) to most advanced and sophisticated side (downside in Fig. 7), also holder stay side rivet hole 130 and the first axle part 132 wimble fraction can be set and be formed as cylindric.
In addition, the present invention is not limited to above-mentioned each execution mode, without departing from the scope of spirit of the present invention, can apply in the above-described embodiment to change variedly.
Such as, in the above-described embodiment, describe the situation that motor with brush 1 is the drive source of electric equipment products (such as radiator fan) mounted on a vehicle, but can apply motor with brush of the present invention to be not limited thereto, the rivet of end bracket and holder stay that the holder stay fixture of present embodiment can be applied to various motor with brush is fixed.
In addition, in the present embodiment, describe following situation: on holder stay 20, be equipped with brush carrier 21, and in brush carrier 21 under the state exerted a force via spring 23 with easy accessly respectively built with brush 22.But the structure of the brush that the present invention can apply is not limited thereto, also can not use brush carrier 21 but following structure: by leaf spring supporting brush 22, and this leaf spring exerts a force to commutator 13 side to brush 22.
And then, in the above-described embodiment, describe use two rivets 28,28 (128,128) and holder stay 20 is fixed on the situation in end bracket 17, but number and the configuration of rivet 28 (128) are not limited thereto, it can be the structure by least one rivet 28 (128) holder stay 20 is fixed in end bracket 17.
Industry utilizes possibility
According to the present invention, can provide a kind of holder stay fixing structure and have the motor with brush of this holder stay fixing structure, this holder stay fixing structure can prevent the damage of holder stay when being fixed on bracket by the holder stay of motor with brush by rivet.
Claims (8)
1. a holder stay fixing structure, using rivet that the holder stay for supporting the brush slipped with commutator is fixed on bracket, it is characterized by,
Have: above-mentioned holder stay, have corresponding with the first axle part of above-mentioned rivet and be set as larger than the diameter of axle of this first axle part, that this first axle part is inserted the first rivet hole; And
Above-mentioned bracket, have the second rivet hole, described second rivet hole is corresponding with the second axle part being arranged on the tip of above-mentioned the first axle part of above-mentioned rivet and be set as the size corresponding with the diameter of axle of this second axle part, this second axle part is inserted, bear the wide diameter portion formed due to buckling distortion in the above-mentioned axle portion of above-mentioned rivet.
2. holder stay fixing structure as claimed in claim 1, it is characterized by, above-mentioned second rivet hole is made up of cylindrical portion, and described cylindrical portion is that above-mentioned bracket is arranged in the mode erected to above-mentioned holder stay by this bracket, and described holder stay has the recess receiving above-mentioned cylindrical portion.
3. holder stay fixing structure as claimed in claim 1 or 2, is characterized by, and in above-mentioned first rivet hole, equally spaced forms multiple protuberances outstanding inside direction, footpath in the circumferential direction.
4. holder stay fixing structure as claimed in claim 3, is characterized by,
The aperture of above-mentioned first rivet hole of above-mentioned holder stay is larger than the aperture of the second rivet hole of above-mentioned bracket, and
The aperture of above-mentioned first rivet hole of above-mentioned holder stay is larger than the diameter of a circle on the summit of the raised part of the above-mentioned holder stay of link, and
The diameter of a circle linking the summit of the raised part of above-mentioned holder stay is roughly consistent with the diameter of axle being inserted through the part of above-mentioned first rivet hole of above-mentioned rivet.
5. a motor with brush, has:
Use holder stay fixing structure described in claim 1 and be fixed with the above-mentioned bracket of above-mentioned holder stay;
With the yoke portion being provided with above-mentioned bracket; And
The armature with above-mentioned commutator rotatably configured in above-mentioned yoke portion.
6. a motor with brush, has:
Use holder stay fixing structure described in claim 2 and be fixed with the above-mentioned bracket of above-mentioned holder stay;
With the yoke portion being provided with above-mentioned bracket; And
The armature with above-mentioned commutator rotatably configured in above-mentioned yoke portion.
7. a motor with brush, has:
Use holder stay fixing structure described in claim 3 and be fixed with the above-mentioned bracket of above-mentioned holder stay;
With the yoke portion being provided with above-mentioned bracket; And
The armature with above-mentioned commutator rotatably configured in above-mentioned yoke portion.
8. a motor with brush, has:
Use holder stay fixing structure described in claim 4 and be fixed with the above-mentioned bracket of above-mentioned holder stay;
With the yoke portion being provided with above-mentioned bracket; And
The armature with above-mentioned commutator rotatably configured in above-mentioned yoke portion.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-038258 | 2007-02-19 | ||
| JP2007038258 | 2007-02-19 | ||
| JP2007038257 | 2007-02-19 | ||
| JP2007-038257 | 2007-02-19 | ||
| CN200880005343XA CN101617459B (en) | 2007-02-19 | 2008-02-19 | Holder stay fixing structure and motor with brush |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880005343XA Division CN101617459B (en) | 2007-02-19 | 2008-02-19 | Holder stay fixing structure and motor with brush |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102255417A CN102255417A (en) | 2011-11-23 |
| CN102255417B true CN102255417B (en) | 2015-09-02 |
Family
ID=39710053
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880005343XA Expired - Fee Related CN101617459B (en) | 2007-02-19 | 2008-02-19 | Holder stay fixing structure and motor with brush |
| CN201110204446.2A Expired - Fee Related CN102255417B (en) | 2007-02-19 | 2008-02-19 | Holder stay fixing structure and motor with brush |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880005343XA Expired - Fee Related CN101617459B (en) | 2007-02-19 | 2008-02-19 | Holder stay fixing structure and motor with brush |
Country Status (4)
| Country | Link |
|---|---|
| JP (2) | JP5044636B2 (en) |
| CN (2) | CN101617459B (en) |
| DE (1) | DE112008000449T5 (en) |
| WO (1) | WO2008102778A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7229518B2 (en) * | 2019-01-14 | 2023-02-28 | 東京パーツ工業株式会社 | motor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3973151A (en) * | 1973-07-25 | 1976-08-03 | The Lucas Electrical Company Limited | Stator assembly for a dynamoelectric machine and method of manufacturing same |
| CN2163475Y (en) * | 1993-01-11 | 1994-04-27 | 张文华 | Low speed permanent magnet generator |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5925940U (en) * | 1982-08-09 | 1984-02-17 | アルプス電気株式会社 | Rivet structure in small motors |
| CN2084119U (en) * | 1990-11-29 | 1991-09-04 | 洪绍宗 | Bearing fastened rivet |
| JP3131243B2 (en) | 1991-05-23 | 2001-01-31 | 電気化学工業株式会社 | Thermoplastic resin composition |
| JP3196290B2 (en) * | 1992-02-28 | 2001-08-06 | アイシン精機株式会社 | Seat reclining device |
| JP2823449B2 (en) | 1992-11-18 | 1998-11-11 | 三洋電機株式会社 | Electric motor |
| JPH0993891A (en) * | 1995-09-22 | 1997-04-04 | Sawafuji Electric Co Ltd | Dc motor |
| JPH11207712A (en) * | 1998-01-23 | 1999-08-03 | Aichi Electric Co Ltd | Potter's wheel device for ceramic art |
| JP2002142403A (en) | 2000-10-31 | 2002-05-17 | Yamamoto Denki Kk | Commutator motor and motor drive unit for motor-driven bicycle using it |
| GB2383106B (en) * | 2001-12-14 | 2004-09-15 | Textron Fastening Syst Ltd | Method of fastening |
| JP2004125042A (en) * | 2002-10-01 | 2004-04-22 | Heiwa Corp | Rotation support mechanism |
| JP4638248B2 (en) * | 2005-01-25 | 2011-02-23 | ナブテスコ株式会社 | Disc pad |
| JP2007038257A (en) | 2005-08-02 | 2007-02-15 | Victor Co Of Japan Ltd | Soldering device |
| JP2007038258A (en) | 2005-08-03 | 2007-02-15 | Matsushita Electric Ind Co Ltd | Press bending apparatus |
-
2008
- 2008-02-19 WO PCT/JP2008/052768 patent/WO2008102778A1/en active Application Filing
- 2008-02-19 JP JP2009500196A patent/JP5044636B2/en not_active Expired - Fee Related
- 2008-02-19 CN CN200880005343XA patent/CN101617459B/en not_active Expired - Fee Related
- 2008-02-19 CN CN201110204446.2A patent/CN102255417B/en not_active Expired - Fee Related
- 2008-02-19 DE DE112008000449T patent/DE112008000449T5/en not_active Ceased
-
2011
- 2011-07-04 JP JP2011148226A patent/JP5325942B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3973151A (en) * | 1973-07-25 | 1976-08-03 | The Lucas Electrical Company Limited | Stator assembly for a dynamoelectric machine and method of manufacturing same |
| CN2163475Y (en) * | 1993-01-11 | 1994-04-27 | 张文华 | Low speed permanent magnet generator |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112008000449T5 (en) | 2010-01-21 |
| JP5044636B2 (en) | 2012-10-10 |
| WO2008102778A1 (en) | 2008-08-28 |
| JPWO2008102778A1 (en) | 2010-05-27 |
| JP2011193722A (en) | 2011-09-29 |
| CN102255417A (en) | 2011-11-23 |
| CN101617459A (en) | 2009-12-30 |
| JP5325942B2 (en) | 2013-10-23 |
| CN101617459B (en) | 2012-11-14 |
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