CN101308978B - Short-circuit member, commutator, armature, and method for manufacturing short-circuit member - Google Patents
Short-circuit member, commutator, armature, and method for manufacturing short-circuit member Download PDFInfo
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- CN101308978B CN101308978B CN2008100957760A CN200810095776A CN101308978B CN 101308978 B CN101308978 B CN 101308978B CN 2008100957760 A CN2008100957760 A CN 2008100957760A CN 200810095776 A CN200810095776 A CN 200810095776A CN 101308978 B CN101308978 B CN 101308978B
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Abstract
The invention relates to a short current component, a commutator, an armature and a method for manufacturing the short current component. The short current component comprises a first conductive component group and a second conductive component group. The amount of conductive components of the first conductive component group is equal to the amount of the conductive components of the second conductive component group and is odd number. An internal terminal of each conductive component deviates from 90 degree along the circumference of the corresponding conductive component group toward an external terminal of the same conductive component. Each external terminal of the first conductive component group deviates along the circumference of the first conductive component group toward one external terminal corresponding to one of the external terminals of the second conductive component group.
Description
Technical field
The present invention makes the mutual short circuit of predetermined commutator segment so that the identical short-circuit part of its current potential, have this short-circuit part commutator, have the armature of this commutator, and the method for making this short-circuit part.
Technical background
At motor, such as having commutator and abutting against in the direct current machine of brushing of supplying power of this commutator slip, electric current flows through the armature coil of armature via this power supply brush and this commutator.This commutator has a plurality of commutator segments, and makes the predetermined commutator segment short circuit in these commutator segments through short-circuit part.Through making these predetermined commutator segment short circuits, electric current flows through those commutator segments that does not contact with this power supply brush.This makes the quantity of power supply brush be able to reduce.
For example, the 2005-137193 Japan Patent has openly disclosed the short-circuit part that is stacked and forms through with the first conductor part group and the second conductor part group.Each first and second conductor part group comprises the conductor part that quantity equates with the quantity of the commutator segment of commutator.Conductor part in each conductor part group is arranged in annular.The connecting portion that each conductor part has external terminal, inner terminal and connects this external terminal and inner terminal, said external terminal are positioned at along this conductors parts group outside radially, and said inner terminal is positioned at along this conductors parts group inside radially.Be formed with in the external terminal of each conductor part along outward extending crook on the radial direction of this conductors parts group.This first conductor part group and the second conductor part group are piled up mutually like this; So that the external terminal of this first conductor part group aligns with the external terminal of this second conductor part group, and the inner terminal of this first conductor part group aligns with the inner terminal of the second conductor part group.Connect the external terminal of this alignment, and connect the inner terminal of this alignment, so that the first conductor part group and second conductor part form integral body.This crook that forms the external terminal of the first whole conductor part group and the second conductor part group is connected to corresponding commutator segment.There is the corresponding armature overhang of some and this to engage in these crook.
In the short-circuit part of above-mentioned open source literature; Corresponding one in the external terminal of each external terminal of this first conductor part group and this second conductor part group is connected, and in the inner terminal of each inner terminal of this first conductor part group and this second conductor part group corresponding one is connected.In other words, need to connect in a plurality of positions.This makes the integration of win the conductor part group and the second conductor part group become complicated.
Summary of the invention
Therefore; An object of the present invention is to provide a kind of short-circuit part, have this short-circuit part commutator, have the armature of this commutator; And the method for making this short-circuit part, said short-circuit part can be simplified the operation that the first conductor part group, the second conductor part group are formed as one.
For reaching above-mentioned purpose and according to a first aspect of the invention, a kind of short-circuit part that comprises the first conductor part group and the second conductor part group is provided.Each conductor part group comprises a plurality of conductor parts of being arranged to annular.The quantity of the conductor part of this first conductor part group equates with the quantity of the conductor part of the second conductor part group and is represented by n that n is an odd number.Each conductor part have the radially outer that is positioned at this conductors parts group external terminal, be positioned at this conductors parts group inner radial inner terminal and make this external terminal and the interconnected connecting portion of this inner terminal.The inner terminal of this each conductor part departs from 90 degree along the circumferential external terminal with this same conductor part of this conductors parts group.This first conductor part group and this second conductor part group are stacked as in the opposite direction that this inner terminal and this external terminal depart from each conductor part of this inner terminal and this external terminal depart from each conductor part of this first conductor part group direction and this second conductor part group mutually.Corresponding one in the inner terminal of each inner terminal of this first conductor part group and this second conductor part group is alignd.Each external terminal of this first conductor part group departs from along corresponding one in the external terminal of circumferential and this second conductor part group of this first conductor part group.
According to a second aspect of the invention, a kind of short-circuit part that comprises the first conductor part group and the second conductor part group is provided.Each conductor part group comprises a plurality of conductor parts of being arranged to annular.The quantity of the conductor part of this first conductor part group equates with the quantity of the conductor part of the second conductor part group and is represented by n that n is an odd number.Each conductor part have the radially outer that is positioned at this conductors parts group external terminal, be positioned at this conductors parts group inner radial inner terminal and make this external terminal and the interconnected connecting portion of this inner terminal.The inner terminal of this each conductor part departs from along the external terminal circumferential and this conductor part of this conductors parts group.This first conductor part group and this second conductor part group are stacked as in the opposite direction that this inner terminal and this external terminal depart from each conductor part of this inner terminal and this external terminal depart from each conductor part of this first conductor part group direction and this second conductor part group mutually.Corresponding one in the inner terminal of each inner terminal of this first conductor part group and this second conductor part group is alignd.Each external terminal of this first conductor part group departs from along corresponding one in the external terminal of circumferential and this second conductor part group of this first conductor part group.To the conductor part of this first conductor part group and the conductor part of the second conductor part group, the air line distance between the inner terminal of one of them said conductor part and the external terminal and the inner terminal of another said conductor part equate with air line distance between the external terminal for aligned with each other each of its said inner terminal.
According to a third aspect of the invention we, a kind of commutator that comprises commutator segment and short-circuit part is provided.The quantity of this commutator segment is represented that by 2n n is a positive integer.This short-circuit part comprises the first conductor part group and the second conductor part group.Each conductor part group comprises a plurality of conductor parts of being arranged to encircle.The quantity of the conductor part of this first conductor part group equates with the quantity of the conductor part of the second conductor part group and is represented by n that n is an odd number.Each conductor part have the radially outer that is positioned at this conductors parts group external terminal, be positioned at this conductors parts group inner radial inner terminal and make this external terminal and the interconnected connecting portion of this inner terminal.The inner terminal of this each conductor part departs from 90 degree along the circumferential external terminal with this same conductor part of this conductors parts group.This external terminal of each conductor part is connected to corresponding in the said commutator segment.This first conductor part group and this second conductor part group are stacked as in the opposite direction that this inner terminal and this external terminal depart from each conductor part of this inner terminal and this external terminal depart from each conductor part of this first conductor part group direction and this second conductor part group mutually.Corresponding one in the inner terminal of each inner terminal of this first conductor part group and this second conductor part group is alignd.Wherein each external terminal of this first conductor part group departs from along corresponding one in the external terminal of circumferential and this second conductor part group of this first conductor part group.
According to a forth aspect of the invention, provide a kind of and comprised rotating shaft, armature core and according to the armature of the commutator of third aspect present invention.This armature core is fixed around this rotating shaft, and is wound with coil around this armature core.This commutator is fixed around this rotating shaft, and the commutator segment of this commutator is electrically connected with this coil.
According to a fifth aspect of the invention, the method for a kind of manufacturing according to the short-circuit part of first aspect present invention is provided.This method comprises: form the conductor part group on each piece in two conductive plates, said conductor part group is made up of the conductor part of angled setting, and this conductor part that is formed in the conductor part group on each piece plate is connected mutually with inside casing through housing.This conductor part group of said formation comprises: through being embossed in the outer hole of going out angled setting on each piece plate and the endoporus of angled setting; Said outer hole equates with the quantity of endoporus; Form external terminal between each external hole that hole week makes progress adjacent outside this by this, and this endoporus week make progress adjacent each form inner terminal between to endoporus; And form line of cut through mold pressing; Its quantity equates with the quantity of this endoporus with this outer hole; Part outside said line of cut is somebody's turn to do on each plate between hole and this endoporus; Each line of cut one the hole outside this extends to corresponding in this endoporus, marks off on this plate part between the hole and this endoporus outside this by this, thereby forms connecting portion.This method also comprises: this connecting portion that will be formed on each conductor part of this conductor part group on each plate is bent into the thickness direction protrusion of the middle part of each connecting portion along this plate, and the bending of said connecting portion makes that circumferentially adjacent connecting portion is separated from each other; After bending; The direction that protrude at this middle part of the direction that this plate is stacked as mutually this middle part of each connecting portion of a plate wherein protrude and each connecting portion of another piece plate is opposite mutually; Wherein in the plate that piles up; This inner terminal of a plate aligns with this inner terminal of another piece plate, and wherein this external terminal of a plate departs from this external terminal of another piece plate; And after carrying out the piling up of said plate, remove this housing and this inside casing from each piece plate.
Describe the description of purport of the present invention in conjunction with the referenced drawings hereinafter with the mode of example, can more know others of the present invention and advantage.
Description of drawings
Description in conjunction with the current preferred embodiment of referenced drawings hereinafter can be expressly understood the present invention and purpose thereof and advantage, wherein:
Fig. 1 is the cutaway view along its central axis of the armature of first embodiment of the invention, and it illustrates with central axis and is divided in the two halves;
Fig. 2 is the half sectional view that the commutator of armature shown in Figure 1 is shown;
Fig. 3 is the plane graph that the conductor bar assembly of armature shown in Figure 1 is shown;
Fig. 4 is the plane graph that the conductor bar group of armature shown in Figure 1 is shown;
Fig. 5 A, 5B and 5C are the diagram that the process of making conductor bar assembly shown in Figure 3 is shown;
Fig. 6 is the plane graph that the conductor bar assembly of second embodiment of the invention is shown;
Fig. 7 is the exploded perspective view that bar assembly shown in Figure 6 is shown;
Fig. 8,9,10 and 11 is for illustrating the diagram of the process of making conductor bar assembly shown in Figure 6;
Figure 12 illustrates the plane graph that the present invention improves the conductor bar assembly of embodiment;
Another improves the plane graph of the conductor bar assembly of embodiment to Figure 13 for the present invention.
Embodiment
First embodiment
Description is described the first embodiment of the present invention.
Armature 1 shown in Figure 1 is arranged on the inboard of stator (not shown), and forms motor with this stator.This stator has along the permanent magnet of the circumferential setting of armature 1.
Armature 1 comprises metal rotating shaft 2, armature core 3, commutator 4 and the coil 5 around the armature core 3.Armature core 3 and commutator 4 are fixed on the periphery of rotating shaft 2.The two ends of rotating shaft 2 are supported by this stator rotation.
Armature core 3 comprise the annular fixed part 3a and from the outward extending tooth-like part 3b of the outer periphery of fixed part 3a.Fixed part 3a has rotating shaft 2 and passes hole wherein.Coil 5 is around tooth-like part 3b.
Commutator 4 comprises commutator main body 11 that is fixed to rotating shaft 2 and the short-circuit part 12 that is arranged on commutator main body 11 1 ends.Commutator main body 11 comprises 14 commutator segments 14 on insulating element 13 that contacts with rotating shaft 2 and the periphery that is positioned at insulating element 13.Insulating element 13 is for example processed by the insulation thermosetting resin, and is cylindrical basically.One end of insulating element 13 (lower end as shown in Figure 1) forms the connecting portion 13a of minor diameter.Rotating shaft 2 is press fit into the inboard of connecting portion 13a so that insulating element 13 is fixed to rotating shaft 2.Insulating element 13 rotates with rotating shaft 2 one thus.
As shown in Figure 2, commutator segment 14 is arranged on the outer circumference surface of insulating element 13 with the angular spacing that equates.Each commutator segment 14 has along the axial elongated shape of commutator 4.A pair of maintenance pawl 14a extends from the inner surface of each commutator segment 14.Make and keep pawl 14a to bend to each adjacent to each other towards far-end.Let this insulating element 13 fix each commutator segment 14 through keeping pawl 14a to embed insulating element 13.Each commutator segment 14 has the bonding wire groove 14b that closes with a termination of corresponding coil 5.Each bonding wire groove 14b extends from this outer surface (outer surface of the lower end Fig. 2) of an end of this corresponding commutator segment 14, and forms acute angle with the outer surface of this commutator segment 14.A plurality of unshowned power supply brushes slide from radially outer position against the commutator main body 11 that is made up of insulating element 13 and commutator segment 14 as previously mentioned.
Short-circuit part 12 comprises conductor bar assembly (conductor part assembly) 21 and holding member 22.Conductor bar assembly 21 makes along each of the circumferentially spaced of commutator 4 180 degree commutator segment 14 short circuits.Holding member 22 keeps conductor bar assembly 21.
As shown in Figure 3, form conductor bar assembly 21 by piling up the first conductor bar group (the first conductor part group), the 23 and second conductor bar group (the second conductor part group) 23.Each conductor bar group 23 comprises seven conductor bars (conductor part) 25.When the central axis of conductors bar group 23 is seen, the first conductor bar group 23 and the second conductor bar group 23 have shape same but that put upside down.
As shown in Figure 4, seven conductor bars 25 of each conductor bar group 23 are arranged in annular.The connecting portion 28 that each conductor bar 25 has external terminal 26, inner terminal 27 and connects external terminal 26 and inner terminal 27.External terminal 26 be positioned at inner terminal 27 along this conductors bar group 23 outside radially.Inner terminal 27 be positioned at external terminal 26 along this conductors bar group 23 inboard radially.Each inner terminal 27 departs from predetermined angle theta 1 along the external terminal 26 circumferential and associated conductor bar 25 of conductors bar group 23, is specially 90 degree.Each connecting portion 28 bending is an involute shape when the central axis of conductors bar group 23 is observed.Between each connecting portion 28 that week makes progress adjacent of conductors bar group 23, there is the constant basically space of width to conductor bar 25.
The position of the inner terminal that is provided with each conductor bar group 23 27 is joined together to form the less imagination ring C1 among Fig. 4.The position of the external terminal that is provided with each conductor bar group 23 26 is joined together to form the big imagination ring C2 among Fig. 4.The first imaginary line L1 extends along the longitudinal direction of Fig. 4, and comprises and less imagination ring C1 and the total center O 1 of big imagination ring C2.The second imaginary line L2 extends along the horizontal direction of Fig. 4, and comprises center O 1.Imaginary line L1 and L2 are orthogonal.
When the quantity (14) of the commutator segment 14 of commutator 4 is expressed as 2n, n is represented as 7 of odd number.The value of n equals the quantity of the external terminal 26 of each conductor bar group 23, and the quantity that equals the inner terminal 27 of each conductor bar group 23.
Each conductor bar group 23, quantity is arranged on the less ring C1 with the phase equi-angularly space by the inner terminal 27 that n representes.At this moment, one of them inner terminal 27 is positioned on the first straight line L1.The circumferential angular spacing of edge between 27 pairs of each adjacent inner terminals less ring C1 is (360/n) °.Each inner terminal 27 except that this is positioned at the inner terminal 27 on the first straight line L1 with respect to corresponding inner terminal 27 axial symmetry of the first straight line L1.
Each conductor bar group 23, quantity is arranged on the bigger ring C2 with the phase equi-angularly space by the external terminal 26 that n representes.At this moment, one of them external terminal 26 is positioned on the second straight line L2.The circumferential angular spacing of edge between 26 pairs of each adjacent external terminals bigger ring C2 is (360/n) °.Each external terminal 26 except that this is positioned at the external terminal 26 on the second straight line L2 and corresponding external terminal 26 axial symmetry with respect to the second straight line L2.
Through corresponding connecting portion 28 with each external terminal 26 be connected to along conductors bar group 23 circumferentially with external terminal 26 depart from 90 spend within the terminal 27 one.Promptly; The inner terminal 27 and the external terminal 26 on this second straight line L2 that are equivalent on this first straight line L1 at first connect mutually through corresponding connecting portion 28; After this, its position is connected to connecting portion 28 adjacent to the external terminal 26 of terminal 26 and inner terminal 27 outside this previous connection with inner terminal 27 successively.
Again with reference to figure 3, one in this first conductor bar group 23 and the second conductor bar group 23 after first straight line L1 upset, the first conductor bar group 23 and the second conductor bar group 23 are piled up mutually.Pile up like this; Promptly corresponding in the inner terminal 27 of each inner terminal 27 of the first conductor bar group 23 and the second conductor bar group 23 aligns, and each external terminal 26 of the first conductor bar group 23 along conductors bar group 23 circumferentially with the external terminal 26 of the second conductor bar group 23 in corresponding one depart from.Through piling up in the conductor bar assembly 21 that the first conductor bar group 23 and the second conductor bar group 23 obtain, circumferentially be provided with 14 external terminals 26 with the phase equi-angularly space along conductor bar assembly 21.And what the external terminal 26 of each conductor bar 25 departed from the direction that the external terminal 26 of each conductor bar 25 departs from the inner terminal 27 and the first conductor bar group 23 and this inner terminal 27 and the second conductor bar group 23 is in the opposite direction.In addition; For each to the conductor bar 25 of the first conductor bar group 23 and the conductor bar 25 of the second conductor bar group 23; The inner terminal 27 of said conductor bar 25 is aligned with each other, and the air line distance between the inner terminal 27 of one of them conductor bar 25 and the external terminal 26 and the inner terminal 27 of another conductor bar 25 equate with air line distance between the external terminal 26.
As shown in Figure 2; Each connecting portion 28 of the first conductor bar group 23 or each connecting portion 28 of the second conductor bar group 23 are bent into; Its middle part on vertically conductor bar assembly 21 axially on protrusion is largely arranged, and each connecting portion 28 of another conductor bar group 23 be bent into its middle part on vertically conductor bar assembly 21 axially on the protrusion of less degree is arranged.Therefore, each connecting portion 28 of each connecting portion 28 of the first conductor bar group 23 and the second conductor bar group 23 has 3D shape.The direction that protrude at this middle part that has the connecting portion 28 at bigger protrusion middle part is the different conductor bar group 23 of the conductor bar group 23 of the connecting portion 28 in the middle part of leaving this and having this bigger protrusion.The direction that protrude at this middle part that has the connecting portion 28 at less protrusion middle part for towards this with have this less protrusion in the middle part of the different conductor bar group 23 of conductor bar group 23 of connecting portion 28.
Be connected mutual with the inner terminal of the second conductor bar group 23 through the inner terminal 27 of welding the first conductor bar group 23 of each alignment.On the other hand, the external terminal 26 of the first conductor bar group 23 is not connected mutually with the external terminal 26 of the second conductor bar group 23.Thus, conductor bar assembly 21 only has 7 link positions.As shown in Figure 3, in the conductor bar assembly 21, inner terminal 27 interconnected each the external terminal 26 of conductor bar 25 is circumferentially departed from 180 degree along conductor bar assembly 21.
As shown in Figure 2, the holding member 22 that keeps conductor bar assembly 21 is by constituting with insulating element 13 various parts.Holding member 22 for example is made up of the insulation thermoplastic resin, and is annular basically.Conductor bar assembly 21 remove external terminal 26 be partially submerged into holding member 22 to keep conductor bar assembly 21 through holding member 22.Space between the connecting portion 28 that the resin that constitutes holding member 22 is not only filled the first conductor bar group 23 and the connecting portion 28 of the second conductor bar group 23, and fill circumferential adjacent each to the space (see figure 3) between the conductor bar 25.Cylindrical boss 22a extends from the center of holding member 22.The internal diameter of boss 22a equals or is slightly smaller than the external diameter of the connecting portion 13a of insulation division 13.Connecting portion 13a is press fit into boss 22a, and short-circuit part 12 is attached and be fixed to commutator main body 11 like this.Be attached under the situation of commutator main body 11 end in contact (lower end among Fig. 2) of each external terminal 26 and corresponding commutator segment 14 at short-circuit part 12.External terminal 26 welds so that its mutual conduction mutually with the contact portion of commutator segment 14.Therefore, along commutator 4 circumferentially depart from 180 degree each commutator segment 14 is formed short circuits and remains on same potential.
As shown in Figure 1, armature core 3 and commutator 4 be along the axial setting of rotating shaft 2, and fixing around rotating shaft 2.The far-end of the boss 22a of commutator 4 contacts with armature core 3.Boss 22a supports the end from bonding wire groove 14b unwrapping wire to each coil 5 of the tooth-like part 3b of armature core 3 of each commutator segment 14.Hereinafter is called connecting line 5a with this supported end of each coil 5.That is, boss 22a prevents that connecting line 5a from contacting with rotating shaft 2, also prevents that connecting line 5a is with less bend radius.
The method of making short-circuit part 12 is described.
At first, shown in Fig. 5 A, two of mold pressings such as each piece in the conductive plate 31 of copper coin to stamp out seven otch 32 of angled setting.Form seven conductor bars 25 like this, it is separately between the adjacent pair of notches 32 of each plate 31.Connect the conductor bar 25 that forms in each plate 31 through housing 33 and inside casing 34.In the present embodiment, in punching, the connecting portion 28 of each conductor bar 25 is bent into the thickness direction protrusion of its longitudinal middle part along respective plate.
Then, pile up this two boards 31, shown in Fig. 5 C through mold pressing.Before piling up, in the two boards 31 one overturns around the first straight line L1 shown in Fig. 5 A.Fig. 5 B has shown the plate 31 of upset.Therefore, when two boards 31 piles up, inner terminal 27 depart from the plate 31 each the direction of the external terminal 26 of conductor bar 25 and inner terminal 27 are departed from the opposite direction to the external terminal 26 of conductor bar 25 of in another piece plate 31 each.And the inner terminal 27 of a plate 31 is set to align with the inner terminal 27 of another piece plate 31, and the external terminal 26 of a plate 31 is set to depart from the external terminal 26 of another piece plate 31.
Subsequently, through welding this 27 pairs of inner terminal through the alignment of the two boards 31 that piles up is linked together.
After this, in order to form holding member 22, this puts into the mould (not shown) through the two boards 31 that piles up, and in this mould, is packed into the thermoplastic resin of thawing then.The cooling and solidify this thermoplastic resin, like this, be accomplished through the holding member 22 that the two boards 31 that piles up is integrally formed with this.Accomplish after this holding member 22, from this mould, take out the two boards 31 that is integrally formed with holding member 22 through piling up.
At last, along housing 33 and the inside casing 34 of the doublet septum 31 among Fig. 5 C to remove each plate 31.Accomplish short-circuit part 12 thus.
This first embodiment has following advantage.
(1) makes along each of the circumferentially spaced of commutator 4 180 degree commutator segment 14 short circuits by two in the conductor bar 25; 25 1 of wherein said conductor bars are in the conductor bar 25 of the first conductor bar group 23, and another is of conductor bar 25 in the second conductor bar group 23.Therefore, conductor bar 25 quantity in each conductor bar group 23 are seven, and this quantity is less than quantity of the prior art.Although the inner terminal 27 of the first conductor bar group 23 aligns with the inner terminal 27 of the second conductor bar group 23 and is connected mutually, the external terminal 26 of the first conductor bar group 23 and the external terminal 26 of the second conductor bar group 23 are to depart from and not interconnected.When the first conductor bar group 23 and the second conductor bar group 23 were formed as one, the number of parts that needs to connect was seven, and this quantity is less than the quantity of prior art.Therefore, the first conductor bar group 23 and the second conductor bar group 23 are easier to be integrally formed, and this has promoted the productive rate of commutator 4 and armature 1.The union piece of lesser amt has reduced the generation of bad connection, has increased the reliability of short-circuit part thus.Thereby, make it commutator segment 14 conducting reliably mutually of short circuit by short-circuit part 12, can electric current be delivered to coil 5 reliably through commutator 4 like this.In addition, because the quantity of the conductor bar 25 of each conductor bar group 23 less than quantity of the prior art, therefore can not increase the width of the connecting portion 28 of each conductor bar 25.For example, when the width of each connecting portion 28 increases and its resistance value constant (promptly not changing along the area of section of connecting portion 28 width), need not to increase significantly the thickness of connecting portion 28.Thus, but the less relatively plate 31 of used thickness forms conductor bar group 23.Plate 31 is thin more, and this punching press is just easier and accurate more.Perhaps, when the width of each connecting portion 28 increases and its thickness when constant, increased along the area of section of connecting portion 28 width.The resistance that this has reduced connecting portion 28 has improved thus by short-circuit part 12 and has made the conductance between the commutator segment 14 of its short circuit.
(2) seven of each conductor bar group 23 inner terminals 27 circumferentially are provided with the phase equi-angularly space along conductor bar group 23.That is, 23 weeks of conductors bar group make progress adjacent each to the constant distance between the inner terminal 27.This is convenient to the connection of corresponding inner terminal 27.And except that the inner terminal 27 of each conductor bar group 23 circumferentially was provided with the phase equi-angularly space along conductor bar group 23, each inner terminal 27 circumferentially departed from 90 with the external terminal 26 of associated conductor bar 25 and spends along conductor bar group 23.Therefore, when the first conductor bar group 23 and the second conductor bar group 23 are stacked into inner terminal 27 when aliging, 14 external terminals 26 are along the circumferentially angular spacing settings to equate of conductor bar group 23.This is convenient to external terminal 26 is connected to the commutator segment 14 that circumferentially is provided with the angular spacing that equates along commutator 4.
(3) when when the central shaft of conductors bar group 23 is seen, the first conductor bar group 23 is identical with the shape of the second conductor bar group 23.Seven inner terminals 27 of each conductor bar group 23 are along the angular spacing setting of less imagination ring C1 to equate shown in Figure 4, so that one of them inner terminal 27 is positioned on the first imaginary line L1 shown in Figure 4.Seven external terminals 26 of each conductor bar group 23 are along the angular spacing setting of big imagination ring C2 to equate shown in Figure 4, and like this, one of them external terminal 26 is positioned on the second imaginary line L2 shown in Figure 4.Therefore, each inner terminal 27 except that this is positioned at the inner terminal 27 on the first straight line L1 is with respect to the first straight line L1 and corresponding inner terminal 27 axial symmetry, and external terminal 26 is asymmetric with respect to the first straight line L1.Therefore; When one in this first conductor bar group 23 and the second conductor bar group 23 after first straight line L1 upset; When the first conductor bar group 23 and the second conductor bar group 23 are piled up mutually; Corresponding one in each inner terminal 27 of the first conductor bar group 23 and the inner terminal 27 of the second conductor bar group 23 is alignd, and each external terminal 26 of the first conductor bar group 23 circumferentially departing from the corresponding external terminal 26 of the second conductor bar group 23 along this conductor bar group 23.This is convenient to piling up of the first conductor bar group 23 and the second conductor bar group 23, and this has promoted the productive rate of short-circuit part 12 thus.
(4) quantity of the conductor bar 25 of each conductor bar group 23 is less than quantity of the prior art.Thus, through increasing, can more easily do widelyer compared to prior art to the distance between the conductor bar 25 in each that 23 weeks of conductors bar group makes progress adjacent through being embossed in the width of the otch 32 that punching press is come out in the plate 31.Otch 32 is wide more, just more easily otch 32 is carried out punching.And, when forming otch 32, can prevent respectively to be formed on conductor bar 25 distortion between the adjacent cut 32.In addition, compare, make mould such as employed piercer and punch die in the mold pressing more easily, and can prolong the life-span of this mould with the otch 32 that width is narrower.
Each connecting portion 28 of (5) first conductor bar groups 23 or each connecting portion 28 of the second conductor bar group 23 be bent into its middle part on vertically conductor bar assembly 21 axially on protrusion is largely arranged.The direction of this middle part protrusion is to leave the direction of other conductor bar group 23.Therefore; Can not reduce each connecting portion 28 width, not change the space that is making progress in 23 weeks of conductors bar group between the adjacent external terminal 26 or the space between the adjacent inner terminal 27 of making progress in 23 weeks of conductors bar group, or do not change under the situation of external diameter or internal diameter of each conductor bar group 23, each forms than large space to prevent the short circuit of connecting portion 28 between to connecting portion 28 easily 23 weeks of conductors bar group making progress adjacent.This has also prevented that the connecting portion 28 of connecting portion 28 and the second conductor bar group 23 of the first conductor bar group 23 from contacting with each other and be short-circuited.
Second embodiment
Description is described the second embodiment of the present invention.Hereinafter is mainly described the difference with first embodiment.
As the replacement of the conductor bar assembly 21 of first embodiment shown in Figure 3, the short-circuit part 12 of second embodiment is provided with conductor bar assembly 61 as shown in Figure 6.Form conductor bar assembly 61 through piling up the first conductor bar group 62 and the second conductor bar group 62 that respectively have seven conductor bars 64.When the central axis of conductors bar group 62 is seen, the first conductor bar group 62 and the second conductor bar group 62 have shape same but that put upside down.The first conductor bar group 62 more shown in Figure 6 and the second conductor bar group 62 and the first conductor bar group 23 and the second conductor bar group 23 shown in Figure 3, the shape that on each conductor bar 64 of conductor bar group 62 external terminal 26 is connected to the connecting portion 65 of external terminal 27 are different from the shape of connecting portion 28 of each conductor bar 25 of conductor bar group 23.
Seven conductor bars 64 of each conductor bar group 62 are arranged in annular.Similar with first embodiment, each inner terminal 27 departs from 90 degree along the external terminal 26 circumferential and associated conductor bar 64 of conductors bar group 62.Each connecting portion 65 is the shape of involute when bending to along the central axis observation of conductors bar group 62.
As shown in Figure 7, the external terminal 26 and the inner terminal 27 of each conductor bar group 62 are set to be in same plane, and the connecting portion 65 of each conductor bar group 62 is bent into the axial protrusion of center along conductor bar assembly 61.The direction that protrude at the middle part of connecting portion 65 be leave with this connecting portion 65 under the different conductor bar group 62 of conductor bar group 62.Through near the basically vertically crooked conductors bar 64 in two positions boundary line between external terminal 26 and the connecting portion 65; And near the basically vertically crooked conductors bar 64 in two positions boundary line between inner terminal 27 and the connecting portion 65 forms the bending of each connecting portion 65.Therefore, each connecting portion 65 has duct-like longitudinal cross-section shape.
Before crooked connecting portion 65, that is, when connecting portion 65 is positioned at the plane identical with external terminal 26 and inner terminal 27, contact with each other at each the part place that 62 weeks of conductors bar group makes progress adjacent to connecting portion 65 65a in its side.Have only through crooked connecting portion 65, adjacent each just is separated from each other to connecting portion 65.The width of connecting portion 65 is greater than the width of the connecting portion 28 of first embodiment shown in Figure 3.
As shown in Figure 6; One in this first conductor bar group 62 and the second conductor bar group 62 after first straight line L1 upset; The first conductor bar group 62 and the second conductor bar group 62 are piled up mutually, so that the direction that protrude at the middle part of each connecting portion 65 of the direction that protrude at the middle part of each connecting portion 65 of the first conductor bar group 62 and the second conductor bar group 62 is opposite mutually.Pile up like this; Promptly corresponding in the inner terminal 27 of each inner terminal 27 of the first conductor bar group 62 and the second conductor bar group 62 aligns, and each external terminal 26 of the first conductor bar group 62 along conductors bar group 62 circumferentially with the external terminal 26 of the second conductor bar group 62 in corresponding one depart from.Through piling up in the conductor bar assembly 61 that the first conductor bar group 62 and the second conductor bar group 62 obtain, circumferentially be provided with 14 external terminals 26 with the phase equi-angularly space along conductor bar assembly 61.And what the external terminal 26 of each conductor bar 64 departed from the direction that the external terminal 26 of each conductor bar 64 departs from the inner terminal 27 and the first conductor bar group 62 and this inner terminal 27 and the second conductor bar group 62 is in the opposite direction.In addition; To the conductor bar 64 of the first conductor bar group 62 and the conductor bar 64 of the second conductor bar group 62, the air line distance between the inner terminal 27 of one of them conductor bar 64 and the external terminal 26 and the inner terminal 27 of another conductor bar 64 equate with air line distance between the external terminal 26 for aligned with each other each of inner terminal 27.
The existing method of describing the short-circuit part 12 of making conductor bar assembly 61 with said structure.
At first, as shown in Figure 8, two of mold pressings such as each piece in the conductive plate 71 of copper coin is to form conductor bar group 62, and said conductor bar group 62 comprises seven conductor bars 64 of angled setting.
More specifically, form the outer hole 72 of seven angled settings and the endoporus 73 of seven angled settings through punching at each piece plate 71.Be formed with external terminal 26 between each the external hole 72 that 72 weeks of hole makes progress adjacent outside, and 73 weeks of endoporus make progress adjacent each be formed with inner terminal 27 between to endoporus 73.Then, form seven undercut secants 74 through outer hole 72 and the position between the endoporus 73 that is embossed in each plate 71.Among Fig. 8, line of cut 74 is represented by doublet.Each line of cut 74 from outer hole 72 extends to corresponding endoporus 73.Line of cut 74 with on each plate 71 outside part between hole 72 and the endoporus 73 be divided into seven of angled setting, form seven connecting portions 65 by this.The conductor bar 64 that is connected the conductor bar group 62 that forms in each plate 71 through housing 33 with inside casing 34.In each that 62 weeks of conductors bar group makes progress adjacent connecting portion 65 is contacted with each other at 65a place, its side.
Then, each connecting portion 65 is bent into the thickness direction protrusion of center along plate 71.As shown in Figure 9, first mould 81 through having annular convex 81a and have second mould, the 82 crooked connecting portions 65 with the corresponding second annular recessed portion 82a of the first annular convex 81a.Form protuberance 81a and recess 82a respectively with corresponding with the connecting portion 65 of plate 71.After plate shown in Figure 8 71 being positioned between first mould 81 and second mould 82, first mould 81 and second mould 82 are drawn closer together, so that plate 71 remains between first mould 81 and second mould 82.This makes that the connecting portion 65 on the plate 71 is crooked as illustrated in fig. 10, and each is separated from each other to connecting portion 65 62 weeks of conductors bar group making progress adjacent.
Then, two boards 71 shown in Figure 10 piles up mutually.Before piling up, one in the two boards 71 around first straight line L1 upset shown in Figure 10.In piling up, the direction that protrude at the middle part of the direction that two boards 71 is set to the middle part of each connecting portion 65 of the first conductor bar group 62 to protrude and each connecting portion 65 of the second conductor bar group 62 is opposite mutually.
Subsequently, through welding this 27 pairs of inner terminal that on the two boards 71 that piles up, align is linked together.This two boards that forms as one 71 can be used as insert, and the same with first embodiment, and holding member 22 forms for insertion die casting (insert molded).At last, along housing 33 and the inside casing 34 of the doublet septum 71 among Figure 11 to remove each plate 71.Accomplish short-circuit part 12 thus with conductor bar assembly 61.
Except that advantage (1)～(4) of first embodiment, second embodiment has following advantage.
(1) in circumferentially adjacent each of conductors bar group 62 connecting portion 65 was contacted with each other before connecting portion 65 bendings, and only separated from each other in connecting portion 65 bendings.Between circumferentially adjacent each of conductors bar group 62 is to connecting portion 65, need there be enough spaces before connecting portion 65 is crooked, to contact with each other to prevent connecting portion 65.Yet, owing to let adjacent connecting portion 65 not have harm connecting portion 65 crooked contacting with each other before, so present embodiment need not this space.Therefore; Can easily widen the width of the connecting portion 65 of each conductor bar 64; And do not change the internal diameter or the external diameter of each conductor bar group 62, perhaps change the space between the adjacent external terminal 26 that makes progress in 62 weeks of conductor bar group or adjacent inner end 27 that makes progress in 62 weeks of conductor bar group between the space.When the width increase of each connecting portion 65, then the area of section along connecting portion 65 width increases.This has reduced the resistance of connecting portion 65, has promoted thus by short-circuit part 12 to make the conductance that connects between the commutator segment 14 of its short circuit.
(2) in the process of the short-circuit part 12 of manufacturing second embodiment,, in each plate 71, form conductor bar 64 through forming line of cut 74 and outer hole 72 and endoporus 73.The area that part is washed out by institute when forming conductor bar 64 through in each plate 71, forming line of cut 74 and outer hole 72 with endoporus 73 less than first embodiment in when formation otch 32 forms conductor bar 25 in each plate 71 area partly that washes out.That is, according to second embodiment, the amount of waste material that punching produces is less relatively.
(3) form outer hole 72 and do not carry out simultaneously, but on each plate 71, separately carry out with the mold pressing operation of endoporus 73 and the mold pressing operation of formation line of cut 74.Than operate on each plate 71 situation that forms outer hole 72 and endoporus 73 and line of cut 74 through the mold pressing of carrying out simultaneously, the cutting quantity that each mold pressing is operated is less.The friction that this has reduced between mold pressing mould and the plate 71 so just prevents that conductor bar 64 from deforming in this mold pressing operating period.
The foregoing description can be done following modification.
Among second embodiment, can form outer hole 72 and endoporus 73 and line of cut 74 in each plate 71 simultaneously through being embossed in.
Among second embodiment, both all bend to the axial protrusion of center along conductor bar assembly 61 connecting portion 65 of the first conductor bar group 62 and the connecting portion of the second conductor bar group 62 65.Yet, can be with the connecting portion 65 of the first conductor bar group 62, perhaps the connecting portion 65 of the second conductor bar group 62 is bent into the axial protrusion of center along conductor bar assembly 61.
Among second embodiment, each connecting portion 65 has duct-like longitudinal cross-section shape.Yet as long as heart position is along the axial protrusion of conductor bar assembly 61 therein for each connecting portion 65, connecting portion 65 can have arc or leg-of-mutton longitudinal cross-section shape.
Among first embodiment, when in plate 31, forming seven otch 32, connecting portion 28 is bent into the thickness direction protrusion of center along each plate 31 through punching press.Yet the mold pressing operation of these otch of formation is operated to separate with the mold pressing of crooked connecting portion 28 and is carried out in each plate 31.
Among first embodiment and second embodiment, this two boards that forms as one can be used as the insert in the insertion die casting of holding member 22.Then, remove housing 33 and inside casing 34.Yet, can after removing housing 33 and inside casing 34, insert die casting to holding member 22.
Among first embodiment, adopt structure to contact with each other and be short-circuited with the connecting portion 28 of the connecting portion 28 that prevents the first conductor bar group 23 and the second conductor bar group 23.Promptly; Each connecting portion 28 of each connecting portion 28 of the first conductor bar group 23 or the second conductor bar group 23 is bent into the center has protrusion largely on the direction of principal axis of conductor bar group 23, and each connecting portion 28 of another conductor bar group 23 is bent into there is less degree the center on the direction of principal axis of conductor bar group 23 protrusion.The direction that protrude at this middle part that has the connecting portion 28 at bigger protrusion middle part is to leave the different conductor bar group 23 of conductor bar group 23 that has the connecting portion 28 at this bigger protrusion middle part with this.The direction that protrude at this middle part that has the connecting portion 28 at less protrusion middle part is for towards having the different conductor bar group 23 of conductor bar group 23 of the connecting portion 28 at this less protrusion middle part with this.Yet, can adopt other structure to prevent that the connecting portion 28 of connecting portion 28 and the second conductor bar group 23 of the first conductor bar group 23 from contacting with each other and be short-circuited.
For example, the connecting portion 28 of the connecting portion 28 of the first conductor bar group 23 and the second conductor bar group 23 both flexible for its longitudinal middle part along the axial degree that equate of protrusion of conductors bar group 23.And it is to leave the direction of another conductor bar group 23 that the first conductor bar group 23 and the second conductor bar group 23 are stacked as the direction of the middle part of each connecting portion 28 of one of them conductor bar group 23 protruding mutually.Perhaps, the thickness of the connecting portion 28 of the first conductor bar group 23 and the second conductor bar group 23 is less than the thickness of external terminal 26 with inner terminal 27.In addition, the first conductor bar group 23 and the second conductor bar group 23 are stacked as space between the connecting portion 28 of connecting portion 28 and the second conductor bar group 23 of the first conductor bar group 23 mutually for maximum.Perhaps, can between the connecting portion 28 of the connecting portion 28 of the first conductor bar group 23 and the second conductor bar group 23, insulating trip be set.The advantage of these modifications is to make the shape of the first conductor bar group 23 consistent with the shape of the second conductor bar group 23.
Among first embodiment, the first conductor bar group 23 and the second conductor bar group 23 need not to have when shape identical when the central axis of conductors bar group 23 is checked.
Among second embodiment, the first conductor bar group 62 and the second conductor bar group 62 need not to have identical shaped when when the central axis of conductors bar group 62 is checked.
Among first and second embodiment, commutator 4 has 14 commutator segments 14, and at interval each of 180 degree is short-circuited through short-circuit part 12 to commutator segment 14.Yet as long as the quantitaes of the commutator segment 14 in the commutator 4 is 2n (n is a positive odd number), the quantity of commutator segment 14 need not to be restricted to quantity shown in first embodiment and second embodiment.When the quantitaes of the commutator segment in the commutator 4 14 was 2n, the quantity of the conductor bar 25 of conductor bar group 23 and the conductor bar 64 of conductor bar group 62 was represented by n respectively.
For example, have at commutator 4 under the situation of 6 commutator segments 14, short-circuit part 12 can have conductor bar assembly 41 shown in Figure 12 and replace conductor bar assembly shown in Figure 3 21 or conductor bar assembly 61 shown in Figure 6.Form conductor bar assembly 41 through piling up the first conductor bar group 23 and the second conductor bar group 23 that respectively have 3 conductor bars 25.3 conductor bars 25 of each conductor bar group 23 are spaced with equal angles and circularize.Each inner terminal 27 of conductor bar 25 is positioned at the position of circumferentially departing from 90 degree along conductor bar group 23 with corresponding external terminal 26.Inner terminal 27 departs from that inner terminal 27 departs from the in the opposite direction of external terminal 26 in each conductor bar 25 of direction and the second conductor bar group 23 of external terminal 26 in each conductor bar 25 of the first conductor bar group 23.Corresponding one in each inner terminal 27 of the first conductor bar group 23 and the inner terminal 27 of the second conductor bar group 23 is alignd, and each external terminal 26 of the first conductor bar group 23 is along corresponding one in the external terminal that circumferentially departs from the second conductor bar group 23 26 of conductors bar group 23.
Perhaps, have at commutator 4 under the situation of ten commutator segments 14, short-circuit part 12 can have conductor bar assembly 51 shown in Figure 13 and replace conductor bar assembly shown in Figure 3 21 or conductor bar assembly 61 shown in Figure 6.Form conductor bar assembly 51 through piling up the first conductor bar group 23 and the second conductor bar group 23 that respectively have five conductor bars 25.Five conductor bars 25 of each conductor bar group 23 are spaced with equal angles and circularize.Each inner terminal 27 of conductor bar 25 is positioned at the position of circumferentially departing from 90 degree along conductor bar group 23 with corresponding external terminal 26.Inner terminal 27 departs from that inner terminal 27 departs from the in the opposite direction of external terminal 26 in each conductor bar 25 of direction and the second conductor bar group 23 of external terminal 26 in each conductor bar 25 of the first conductor bar group 23.Corresponding one in each inner terminal 27 of the first conductor bar group 23 and the inner terminal 27 of the second conductor bar group 23 is alignd, and each external terminal 26 of the first conductor bar group 23 is along corresponding one in the external terminal that circumferentially departs from the second conductor bar group 23 26 of conductors bar group 23.
The shape of the shape of insulating element 13 and holding member 22 is not limited to the shape described in first and second embodiment.For example, can omit the boss 22a of insulating element 13 connecting portion 13a and holding member 22, and short-circuit part 12 can be arranged on an end of insulating element 13.Perhaps, can omit holding member 22, short-circuit part 12 only comprises conductor bar assembly 21 or 61 like this.
Claims (14)
1. short-circuit part; It comprises the first conductor part group and the second conductor part group; Each conductor part group comprises a plurality of conductor parts of being arranged to annular; The quantity of the conductor part of this first conductor part group equates with the quantity of the conductor part of the second conductor part group and is represented by n that n is an odd number
Wherein each conductor part have the radially outer that is positioned at this conductors parts group external terminal, be positioned at this conductors parts group inner radial inner terminal and make this external terminal and the interconnected connecting portion of this inner terminal; Wherein the inner terminal of each conductor part departs from 90 degree along the circumferential external terminal with this same conductor part of this conductors parts group
Wherein this first conductor part group and this second conductor part group are piled up mutually; Make in the opposite direction that this inner terminal and this external terminal depart from each conductor part of this inner terminal and this external terminal depart from each conductor part of this first conductor part group direction and this second conductor part group, and
Wherein corresponding in the inner terminal of each inner terminal of this first conductor part group and this second conductor part group aligns, and wherein this first conductor part group each external terminal along this first conductor part group circumferentially and any external terminal of this second conductor part group depart from.
2. short-circuit part as claimed in claim 1 is wherein along the inner terminal that this conductor part in each conductor part group circumferentially is set with the angular spacing that equates of this conductor part group.
3. short-circuit part as claimed in claim 2; Wherein the shape of this first conductor part group and this second conductor part group is identical; Wherein one of them inner terminal of this conductor part of each conductor part group is positioned at first straight line that passes this conductor part group switching centre; Wherein one of them external terminal in this conductor part of each conductor part group is positioned at the center of passing this conductor part group and second straight line vertical with this first straight line, and wherein this first conductor part group and this second conductor part group are stacked as in this first conductor part group and this second conductor part group one mutually around this first straight line upset.
4. like each described short-circuit part in the claim 1 to 3; The connecting portion of each conductor part of this first conductor part group wherein; The perhaps connecting portion of each conductor part of this second conductor part group; Be bent into the axial protrusion of center, and wherein the direction protruded from this conductors parts group of this middle part is to leave the direction of another conductor part group along this conductors parts group.
5. short-circuit part as claimed in claim 4, wherein upwards adjacent in the week of conductors parts group, have a protrusion middle part each connecting portion was contacted with each other before this connecting portion bending, and only separated from each other after this connecting portion bending.
6. short-circuit part; It comprises the first conductor part group and the second conductor part group; Each conductor part group comprises a plurality of conductor parts of being arranged to annular; The quantity of the conductor part of this first conductor part group equates with the quantity of the conductor part of the second conductor part group and is represented by n that n is an odd number
Wherein each conductor part have the radially outer that is positioned at this conductors parts group external terminal, be positioned at this conductors parts group inner radial inner terminal and make this external terminal and the interconnected connecting portion of this inner terminal; Wherein the inner terminal of each conductor part departs from along the external terminal circumferential and this conductor part of this conductors parts group
Wherein this first conductor part group and this second conductor part group are piled up mutually; Make in the opposite direction that this inner terminal and this external terminal depart from each conductor part of this inner terminal and this external terminal depart from each conductor part of this first conductor part group direction and this second conductor part group
Wherein corresponding in the inner terminal of each inner terminal of this first conductor part group and this second conductor part group aligns; And wherein each external terminal of this first conductor part group departs from along any external terminal circumferential and this second conductor part group of this first conductor part group, and
Wherein, To the conductor part of this first conductor part group and the conductor part of the second conductor part group, the air line distance between the inner terminal of one of them said conductor part and the external terminal and the inner terminal of another said conductor part equate with air line distance between the external terminal for aligned with each other each of its said inner terminal.
7. commutator comprises:
Commutator segment, its quantity are represented that by 2n n is an odd number; And
Short-circuit part with the first conductor part group and second conductor part group; Each conductor part group comprises a plurality of conductor parts of being arranged to annular; The quantity of the conductor part of this first conductor part group equates with the quantity of the conductor part of the second conductor part group and is represented by n
Wherein each conductor part have the radially outer that is positioned at this conductors parts group external terminal, be positioned at this conductors parts group inner radial inner terminal and make this external terminal and the interconnected connecting portion of this inner terminal; Wherein the inner terminal of each conductor part departs from 90 degree along the circumferential external terminal with this same conductor part of this conductors parts group; Wherein this external terminal of each conductor part is connected to corresponding in the said commutator segment
Wherein this first conductor part group and this second conductor part group are stacked as in the opposite direction that this inner terminal and this external terminal depart from each conductor part of this inner terminal and this external terminal depart from each conductor part of this first conductor part group direction and this second conductor part group mutually, and
Wherein corresponding in the inner terminal of each inner terminal of this first conductor part group and this second conductor part group aligns, and wherein this first conductor part group each external terminal along this first conductor part group circumferentially and any external terminal of this second conductor part group depart from.
8. commutator as claimed in claim 7 is wherein along the inner terminal that this conductor part in each conductor part group circumferentially is set with the angular spacing that equates of this conductor part group.
9. commutator as claimed in claim 8; Wherein the shape of this first conductor part group and this second conductor part group is identical; Wherein one of them inner terminal of this conductor part of each conductor part group is positioned at first straight line that passes this conductor part group switching centre; Wherein an external terminal in this conductor part of each conductor part group is positioned at the center of passing this conductor part group and second straight line vertical with this first straight line, and wherein this first conductor part group and this second conductor part group are stacked as in this first conductor part group and this second conductor part group one mutually around this first straight line upset.
10. commutator as claimed in claim 7; The connecting portion of each conductor part of this first conductor part group wherein; The perhaps connecting portion of each conductor part of this second conductor part group; Be bent into the axial protrusion of center, and wherein the direction protruded from this conductors parts group of this middle part is to leave the direction of another conductor part group along this conductors parts group.
11. commutator as claimed in claim 10, wherein make progress in conductors parts group week adjacent, have a protrusion middle part each connecting portion was contacted with each other before this connecting portion bending, and only separated from each other after this connecting portion bending.
12. an armature comprises
Rotating shaft;
Around the fixing armature core of this rotating shaft;
Around this armature core coil on every side; And
Around this rotating shaft fixing like each described commutator of claim 7 to 11, the commutator segment of this commutator is electrically connected with this coil.
13. the method for manufacturing such as the said short-circuit part of claim 5 comprises:
Form the conductor part group on each piece in two conductive plates; Said conductor part group is made up of the conductor part of angled setting; This conductor part that is formed in the conductor part group on each piece conductive plate is connected mutually with inside casing through housing, and this conductor part group of said formation comprises:
Through mold pressing; On each piece plate, go out the outer hole of angled setting and the endoporus of angled setting; Said outer hole equates with the quantity of endoporus, forms external terminal between each external hole that hole week makes progress adjacent outside this by this, and this endoporus week make progress adjacent each form inner terminal between to endoporus; And
Form line of cut through mold pressing; Its quantity equates with the quantity of this endoporus with this outer hole; Said line of cut on each plate should outside part between hole and this endoporus, each line of cut one the hole outside this extends to corresponding in this endoporus, marks off on this plate part between the hole and this endoporus outside this by this; Thereby formation connecting portion
This connecting portion that is formed on each conductor part on each plate, this conductor part group is bent into the thickness direction protrusion of the middle part of each connecting portion along this plate, the bending of said connecting portion makes that circumferentially adjacent connecting portion is separated from each other,
The direction that protrude at this middle part of the direction that this plate is stacked as mutually this middle part of each connecting portion of a plate wherein protrude and each connecting portion of another piece plate is opposite mutually; Wherein this inner terminal of a plate aligns with this inner terminal of another piece plate; And wherein this external terminal of a plate departs from this external terminal of another piece plate, and
After carrying out the piling up of said plate, remove this housing and this inside casing from each piece plate.
14. method as claimed in claim 13, wherein, the said step that forms this line of cut through this plate of mold pressing be said through be embossed in go out on this plate this endoporus with should outer hole after execution.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007126456 | 2007-05-11 | ||
| JP2007-126456 | 2007-05-11 | ||
| JP2008-016494 | 2008-01-28 | ||
| JP2008016494A JP5009182B2 (en) | 2007-05-11 | 2008-01-28 | Short-circuit member, commutator, armature, and method for manufacturing short-circuit member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101308978A CN101308978A (en) | 2008-11-19 |
| CN101308978B true CN101308978B (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100957760A Expired - Fee Related CN101308978B (en) | 2007-05-11 | 2008-05-09 | Short-circuit member, commutator, armature, and method for manufacturing short-circuit member |
Country Status (2)
| Country | Link |
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| JP (1) | JP5009182B2 (en) |
| CN (1) | CN101308978B (en) |
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| CN102111033A (en) * | 2011-01-19 | 2011-06-29 | 文登永柏微电机有限公司 | Coreless cylindrical vibrating motor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1871759A (en) * | 2003-10-06 | 2006-11-29 | 阿斯莫有限公司 | Short-circuiting member, commutator, and method of manufacturing short-circuiting member |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5463203A (en) * | 1977-10-28 | 1979-05-22 | Toyonaga Denki Kenkiyuushiyo K | Method of forming commutator for motor |
| JP3530034B2 (en) * | 1998-08-10 | 2004-05-24 | 三菱電機株式会社 | Rectifier for rotating electric machine |
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2008
- 2008-01-28 JP JP2008016494A patent/JP5009182B2/en not_active Expired - Fee Related
- 2008-05-09 CN CN2008100957760A patent/CN101308978B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1871759A (en) * | 2003-10-06 | 2006-11-29 | 阿斯莫有限公司 | Short-circuiting member, commutator, and method of manufacturing short-circuiting member |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101308978A (en) | 2008-11-19 |
| JP5009182B2 (en) | 2012-08-22 |
| JP2008312432A (en) | 2008-12-25 |
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