CN100479300C - Rotary motor - Google Patents
Rotary motor Download PDFInfo
- Publication number
- CN100479300C CN100479300C CNB02127133XA CN02127133A CN100479300C CN 100479300 C CN100479300 C CN 100479300C CN B02127133X A CNB02127133X A CN B02127133XA CN 02127133 A CN02127133 A CN 02127133A CN 100479300 C CN100479300 C CN 100479300C
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- China
- Prior art keywords
- brush
- commutator
- gyroaxis
- turning motor
- central portion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/38—Brush holders
- H01R39/40—Brush holders enabling brush movement within holder during current collection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
- H02K13/006—Structural associations of commutators
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Current Collectors (AREA)
- Dc Machiner (AREA)
Abstract
The purpose of the invention is to obtain a rotating machine wherein even if a brush holder is installed aslant, a brush absorbs this inclination and faces toward the normal direction. The brush 17 is gently guided and housed in the brush holder 8 so that the brush is rotatable at small angles. Thus, even if the brush holder 8 is installed on a commutator 2 at an erroneous angle, a first face of the brush 17 brought into contact with the commutator 2 is correctly brought into contact with the outer circumferential surface of the commutator 2.
Description
Technical field
The present invention relates to a kind of brush structure of turning motor, particularly relate to a kind of to by the self-excited vibration of the brush that slip produced of brush and commutator and the improvement of restraining by the noise that this vibration produced.
Background technology
In turning motor,, a kind of structure with brush and commutator is arranged in order to obtain rectified action.That is, on commutator, turn round slip, from the coil power supply of outside to revolution by brush.As the holding device of traditional brush, what adopt usually is to take in the brush carrier of brush and the helical spring that described brush is carried out the elasticity pushing to commutator.
In the revolution of commutator, rely on the resistance to sliding that acts between brush and the commutator, brush is pressed to the gyratory directions side of brush carrier and is carried out work.The brush that contacts with commutator moves at the effect lower edge of the friction of brush front end and commutator face gyratory directions.At this moment, the leading section of brush constantly is involved in the gap of brush carrier and commutator.
Brush is formed by the mixture of graphite and a part of copper powders may, in case airborne humidity descends, then resistance to sliding increases, the gyratory directions leading section of brush has formed the state that is sandwiched as moment by brush carrier housing and commutator, otherwise, because of its reverse brute force causes powerful resilience self-excited vibration taking place, thereby produces a kind of noise that is referred to as cricket chirping.
Figure 27 for the traditional brush of expression and commutator contact form, want portion's profile from the armature core side profile direction vertical that see with gyroaxis turning motor.Figure 28 is the brush of Figure 27 and the enlarged drawing of commutator contact portion.Commutator 2 connects and is fixed on the gyroaxis 1, is roughly cylindric.It is roughly cube-shaped that brush 7 is, the sagging concavity of the outer peripheral face of the imitative commutator 2 of the 1st face mould of commutator 2 sides.In addition, omitted among the figure the spring of brush 7 to the pushing of commutator 2 directions.
At this, as Figure 27, shown in Figure 28, if when under with respect to the state of the gyratory directions of commutator 2, inclination Δ t degree brush carrier 8 being assembled, the sliding surface of brush 7 can not carry out face with the outer peripheral face of commutator 2 and contact.That is, have only the S point part contact of Figure 28, form so-called single face and touch state.Touch state in case formed this single face, self-excited vibration and cricket chirping will take place, not only make the characteristic degradation of motor, and, also can go wrong because of bad phenomenon such as noise or vibration take place.
Figure 29 is form, parallel with the gyroaxis of turning motor for traditional brush of expression and commutator contact wants portion's profile.Figure 30 is the brush of Figure 29 and the enlarged drawing of commutator contact portion.It is roughly cube-shaped that brush 7 is, the 1st of commutator 2 sides on the gyratory directions of turning motor, central portion is a kind of big sink circular-arc.In addition, omitted among the figure the spring of brush 7 to the pushing of commutator 2 directions.As Figure 29, shown in Figure 30, if when under with respect to the state of the gyratory directions of commutator 2, inclination Δ t degree brush carrier 8 being assembled, the sliding surface of brush 7 can not normally carry out face with the outer peripheral face of commutator 2 and contact.That is, have only the T point part contact of Figure 30, form so-called single face and touch state.Touch state in case formed this single face, self-excited vibration and cricket chirping will take place, not only make the characteristic degradation of motor, and, also can go wrong because of bad phenomenon such as noise or vibration take place.
When Figure 31 assembles under the state with respect to the gyroaxis inclination Δ t degree of turning motor for the traditional commutator of expression, want portion's profile from what the glide direction of brush was seen.As shown in figure 31, in case brush 7 has formed the state of inclination Δ t degree with respect to the gyroaxis of turning motor, then the sliding surface of brush 7 forms point with the outer peripheral face of commutator 2 and contacts.In this state, the sliding surface of brush 7 can not normally carry out face with the outer peripheral face of commutator 2 and contacts.Even in this state, also self-excited vibration and cricket chirping can take place, not only make the characteristic degradation of motor, and, also can go wrong because of bad phenomenon such as noise or vibration take place.
The present invention is exactly the motion of making in order to address the above problem, its purpose is, make special structure by shape with institute's certain portions of brush, can make brush in brush carrier, carry out decide reversing of direction, to prevent by brush carrier and to constitute other the precision influence of parts of turning motor and the precision influence of assembling and the single face that causes touches state.Improve the characteristic degradation and the bad phenomenon such as noise or vibration of motor thus.
Summary of the invention
The turning motor of technical solution of the present invention 1, have rotor and stator, described rotor comprises: gyroaxis, the axial perforation are arranged at the commutator on this gyroaxis, the armature core that is fixed in described gyroaxis and package in the coil of armature core, and described stator comprises: the yoke of taking in described rotor; Be fixed in the magnet of this yoke; The brush of the roughly square bodily form that contacts with described commutator; And leave between the described commutator and be fixed on the described shell with gap, take in described brush and this brush is carried out brush carrier to the guiding of this commutator direction; Having contracts is located between this brush carrier and the described brush, push the elastic component of described brush to described commutator direction, it is characterized in that, described brush has: contact with described commutator the 1st, be positioned at the 6th of the 1st an opposite side, the 2nd and the 3rd of the direction of rotation of described commutator, axial the 4th and the 5th of described commutator, described brush for can with fixed angle around the axle parallel, reverse with the gyroaxis of described commutator, on described the 2nd and described the 3rd, form the conical surface so that in described the 1st and described the 6th the width dimensions of at least the 6 circumferencial direction less than the width dimensions between described the 2nd central portion and described the 3rd central portion.
The turning motor of technical scheme 2 is characterised in that, described brush has: contact with described commutator the 1st, be positioned at the 6th of the 1st an opposite side, the 2nd and the 3rd of the direction of rotation of described commutator, axial the 4th and the 5th of described commutator, described brush is at described the 2nd, go up the formation conical surface for described the 3rd, so that in described the 1st and described the 6th the width dimensions of described at least the 6th circumferencial direction less than the width dimensions between described the 2nd central portion and described the 3rd central portion, described brush is also at described the 4th, go up the formation conical surface for described the 5th, so that in described the 1st and described the 6th at least the 6 axial width dimensions less than the width dimensions between described the 4th central portion and described the 5th central portion, described brush does not also connect described the 4th that gives electric wire close, described the 5th the 2nd, the 3rd go up to form the conical surface, so that connect the width dimensions that do not connect described the 4th or described the 5th circumferencial direction of giving electric wire in described the 4th or described the 5th that gives electric wire less than the width dimensions between described the 2nd central portion and described the 3rd central portion.
Technical scheme 3 is in scheme 1 described turning motor, peripheral part at described commutator, along being provided with the electrode that extends along the direction parallel full week with described gyroaxis, between this adjacent electrode, the groove that formation is extended along the direction parallel with described gyroaxis is at the protuberance of the two ends of described the 1st close described commutator formation curve form.
The accompanying drawing simple declaration
Fig. 1 is the profile of the example 1 of expression turning motor of the present invention.
Fig. 2 be along the A-A line of Fig. 1 to pseudosection.
The vertical view that Fig. 3 sees for the armature core side from the turning motor of brush of expression example 1.
Fig. 4 for the brush of expression example 1 contact with commutator form, want portion's profile from the armature core side profile direction vertical that see with gyroaxis turning motor.
The vertical view that Fig. 5 sees for the armature core side from the turning motor of brush of expression example 2.
Fig. 6 for the brush of expression example 2 contact with commutator form, want portion's profile from the armature core side profile direction vertical that see with gyroaxis turning motor.
The vertical view that Fig. 7 sees for the armature core side from the turning motor of brush of expression example 3.
Fig. 8 for the brush of expression example 3 contact with commutator form, want portion's profile from the armature core side profile direction vertical that see with gyroaxis turning motor.
Fig. 9 is the key diagram of the brush shape of expression example 4.
Figure 10 for the brush of expression example 4 contact with commutator form, want portion's profile from the armature core side profile direction vertical that see with gyroaxis turning motor.
Figure 11 is the side view of the brush of expression example 5.
Figure 12 is form, parallel with the gyroaxis of turning motor for brush and the commutator of expression example 5 contacts wants portion's profile.
Figure 13 is the side view of the brush of expression example 6.
Figure 14 is form, parallel with the gyroaxis of turning motor for brush and the commutator of expression example 6 contacts wants portion's profile.
Figure 15 is the side view of the brush of expression example 7.
Figure 16 is form, parallel with the gyroaxis of turning motor for brush and the commutator of expression example 7 contacts wants portion's profile.
Figure 17 is the side view of the brush of expression example 8.
Figure 18 is form, parallel with the gyroaxis of turning motor for brush and the commutator of expression example 8 contacts wants portion's profile.
Figure 19 is the front view of the brush of expression example 9.
Figure 20 wants portion's profile for the rectification form on the brush direction parallel with the gyroaxis of turning motor of expression example 9.
Figure 21 is the front view of the brush of expression example 10.
Figure 22 wants portion's profile for the rectification form on the brush direction parallel with the gyroaxis of turning motor of expression example 10.
Figure 23 is the front view of the brush of expression example 11.
Figure 24 wants portion's profile for the rectification form on the brush direction parallel with the gyroaxis of turning motor of expression example 11.
Figure 25 is the front view of the brush of expression example 12.
Figure 26 wants portion's profile for the rectification form on the brush direction parallel with the gyroaxis of turning motor of expression example 12.
Figure 27 for the traditional brush of expression contact with commutator form, want portion's profile from the armature core side profile direction vertical that see with gyroaxis turning motor.
Figure 28 is the brush of Figure 27 and the enlarged drawing of commutator contact portion.
Figure 29 is form, parallel with the gyroaxis of turning motor for traditional brush of expression and commutator contact wants portion's profile.
Figure 30 is the brush of Figure 29 and the enlarged drawing of commutator contact portion.
When Figure 31 assembles under the state with respect to the gyroaxis inclination Δ t degree of turning motor for the traditional brush carrier of expression, want portion's profile from what the glide direction of brush was seen.
Among the figure, 1 is gyroaxis, and 2 is commutator, and 3 is armature core, and 4 is coil, 5 is yoke, and 6 is magnet, and 8 is brush carrier, and 9 is spring (elastomeric element), and 10 is rotor, 11 is housing, and 12,13 is bearing, and 14 is that 15 is connector to electric wire, 17,27,37,47,57,67,77,87,97,107,117,127 is brush, and 20 is stator.
Embodiment
Example 1
Fig. 1 is the profile of the example 1 of expression turning motor of the present invention.Fig. 2 be along the A-A line of Fig. 1 to pseudosection.Among Fig. 1, the rotor 10 of turning motor has: gyroaxis 1, the axial perforation are arranged at the commutator 2 on the gyroaxis 1, the armature core 3 that is fixed in gyroaxis 1 and package in the coil 4 of armature core 3.Rotor 10 is subjected to bearing 12,13 supportings.
On the other hand, the stator 20 of turning motor has: take in rotor 10 yoke 5, be fixed in yoke 5 magnet 6, contact with commutator 2 brush 17, take in brush 17 and guide the brush carrier 8 of brush 17 and as being accommodated in brush carrier 8 and to the elastic component of commutator 2 directions pushings brush 17, promptly spring 9.The 11st, the lid of yoke 5, i.e. housing.Magnet 6 is fixed in the inwall of yoke 5.
The vertical view that Fig. 3 sees for the armature core side from the turning motor of brush of this example of expression.Fig. 4 contacts vertical view form, that see from the armature core side for the brush of this example of expression with commutator.Among Fig. 3, it is roughly cube-shaped that brush 17 is, and the outer peripheral face of the imitative commutator 2 of the 1st face mould of commutator 2 sides sink into concavity.And, the brush 17 of this example in the two sides of the gyratory directions of commutator 2 promptly, the 2nd, the 3rd side, be formed with section linearly conicoid 17a, 17a, be the shape of front end point with the formation and the rear end side of the reverse side of commutator 2 with respect to central portion.
Among Fig. 4, commutator 2 connects and is fixed on the gyroaxis 1, is roughly cylindric.At peripheral part cylindraceous,, between adjacent electrode 2a, be formed with the groove 2b that extends with the parallel direction of gyroaxis along being provided with the electrode 2a that extends with the parallel direction of gyroaxis full week.Brush 17 is incorporated in the brush carrier 8.The bootable brush 17 of the casing 8a of brush carrier 8 moves to commutator 2 directions.Form fixed to some extent minim gap between brush 17 and casing 8a, brush 17 gently is incorporated in the casing 8a.In addition, among Fig. 4, omitted spring to commutator 2 directions pushing brush 17.
At this, as shown in Figure 4, imagination is in a kind of like this occasion, that is, and and the occasion after brush carrier 8 being assembled under with respect to the state of the gyratory directions of commutator 2, inclination Δ t degree.Brush 17 utilizes not shown spring to push to commutator 2 directions.The brush 17 of this example is owing to be formed with conicoid 17a, 17a in the rear end side with commutator 2 reverse side, therefore, want to make the recess of the one side that is formed at commutator 2 sides to engage, around the axle parallel, carry out low-angle and reverse with the gyroaxis 1 of commutator 2 with the outer peripheral face of commutator 2.Thus, the 1st of commutator 2 sides the recess and commutator 2 driving fits.That is, can not form the form of single face contact.
Like this, in the turning motor of this example, brush 17 gently is incorporated in the casing 8a, in order can around the axle parallel, to reverse with the gyroaxis 1 of commutator 2 with little angle, the the 2nd, the 3rd two sides of the gyratory directions of commutator 2 at least with the rear end side of the reverse side of commutator, its width is less than central portion.Thus, the single face contact of brush 17 can be prevented, the characteristic degradation and the bad phenomenon such as noise or vibration of turning motor can be improved.
Example 2
The vertical view that Fig. 5 sees for the armature core side from the turning motor of brush of expression example 2.Fig. 6 for the brush of expression example 2 contact with commutator form, want portion's profile from the armature core side profile direction vertical that see with gyroaxis turning motor.Among Fig. 5 and Fig. 6, the brush 17 of this example in the two sides of the gyratory directions of commutator 2 promptly, the 2nd, the 3rd side, be formed with section linearly conicoid 27a, 27a, 27b, 27b respectively, be the shape of front end point respectively with respect to central portion with the front that forms commutator 2 sides with the rear end side of the reverse side of commutator 2.Because brush 27 is more prone to reverse, the 1st recess of commutator 2 sides is more prone to driving fit, therefore, can improve the characteristic degradation and the bad phenomenon such as noise or vibration of turning motor.
In addition, but linearly conicoid 27a, the 27a of section, and 27b, 27b both model be shaped, also can by the cutting etc. the worker that appends form, but the protuberance that is formed at the recess two ends of commutator 2 sides must be level and smooth shape, so that it can not tangled by the groove 2b between the electrode 2a when the revolution of commutator 2.
Example 3
The vertical view that Fig. 7 sees for the armature core side from the turning motor of brush of expression example 3.Fig. 8 for the brush of expression example 3 contact with commutator form, want portion's profile from the armature core side profile direction vertical that see with gyroaxis turning motor.Among Fig. 7 and Fig. 8, the brush 37 of this example in the two sides of the gyratory directions of commutator 2 promptly, the 2nd, the 3rd side, be formed with section respectively and be circular- arc conicoid 37a, 37a, 37b, (37b), be the shape of front end point respectively with respect to central portion with the front that forms commutator 2 sides with the rear end side of the reverse side of commutator 2.Because brush 37 is more prone to reverse, the 1st recess of commutator 2 sides is more prone to driving fit, therefore, can improve the characteristic degradation and the bad phenomenon such as noise or vibration of turning motor.
In addition, but section is circular- arc conicoid 37a, 37a, both model shapings of 37b, 27b, also can by the cutting etc. the worker that appends form, but the protuberance that is formed at the recess two ends of commutator 2 sides must be level and smooth shape, so that it can not tangled by the groove 2b between the electrode 2a when the revolution of commutator 2.
Example 4
Fig. 9 is the key diagram of the brush shape of expression example 4.Figure 10 for the brush of expression example 4 contact with commutator form, want portion's profile from the armature core side profile direction vertical that see with gyroaxis turning motor.Among Fig. 9 and Figure 10, the brush 47 of this example has formed the little form of width globality of the gyratory directions of commutator 2.And, the two sides of the gyratory directions of commutator 2 promptly, the 2nd, the 3rd side, be provided with hemispheric protruding 47a, 47a.Thus, brush 47 reverses protruding 47a in casing 8a as fulcrum.Therefore, the recess of brush 47 is more prone to and commutator 2 driving fits, can improve the characteristic degradation and the bad phenomenon such as noise or vibration of turning motor.
Example 5
Figure 11 is the side view of the brush of expression example 5.Figure 12 is form, parallel with the gyroaxis of turning motor for brush and the commutator of expression example 5 contacts wants portion's profile.Among Figure 11, it is darker circular-arc that brush 57 is that a kind of central portion sink, so that the 1st of commutator 2 sides has only leading section could contact on the gyroaxis direction of turning motor with rearward end.And, the brush 57 of this example in the axial two sides of commutator 2 promptly, the 4th, the 5th side, be formed with section linearly conicoid 57a, 57a, to form the shape that is the front end point with the rear end side of the reverse side of commutator 2 with respect to central portion.
Among Figure 12, commutator 2 connects and is fixed on the gyroaxis 1, is roughly cylindric.At peripheral part cylindraceous,, between adjacent electrode 2a, be formed with the groove 2b that extends with the parallel direction of gyroaxis along being provided with the electrode 2a that extends with the parallel direction of gyroaxis full week.Brush 57 is incorporated in the brush carrier 8.The bootable brush 57 of the casing 8a of brush carrier 8 moves to commutator 2 directions.Form fixed to some extent minim gap between brush 57 and casing 8a, brush 57 gently is incorporated in the casing 8a.In addition, among Figure 12, omitted spring to commutator 2 directions pushing brush 57.
At this, as shown in figure 12, imagination a kind of like this occasion promptly, occasion after brush carrier 8 being assembled under with respect to the state of the gyratory directions of commutator 2, inclination Δ t degree.Brush 57 utilizes not shown spring to push to commutator 2 directions.The brush 57 of this example is owing to be formed with conicoid 57a, 57a in the rear end side with commutator 2 reverse side, therefore, want to make axial leading section all to contact with commutator 2 with the rearward end both sides, with carry out low-angle around the axle of the face quadrature that comprises gyroaxis 1 of commutator 2 and reverse.Thus, the 1st of commutator 2 sides the leading section and rearward end both sides all with commutator 2 driving fits.That is, can not form the form of single face contact.
Like this, in the turning motor of this example, brush 57 for little angle can with carry out low-angle around the axle of the face quadrature that comprises gyroaxis 1 of commutator 2 and reverse, the axial the 4th, the 5th two sides of commutator 2 with the rear end side of the reverse side of commutator, its width is less than central portion.Thus, the single face contact of brush 57 can be prevented, the characteristic degradation and the bad phenomenon such as noise or vibration of turning motor can be improved.
Example 6
Figure 13 is the side view of the brush of expression example 6.Figure 14 is form, parallel with the gyroaxis of turning motor for brush and the commutator of expression example 6 contacts wants portion's profile.Among Figure 13 and Figure 14, the brush 67 of this example in the two sides of the gyratory directions of commutator 2 promptly, the 4th, the 5th side, be formed with section linearly conicoid 67a, 67a, 67b, 67b respectively, be the shape of front end point respectively with respect to central portion with the front that forms commutator 2 sides with the rear end side of the reverse side of commutator 2.Because brush 67 is more prone to reverse, the 1st leading section and rearward end of commutator 2 sides are more prone to driving fit, therefore, can improve the characteristic degradation and the bad phenomenon such as noise or vibration of turning motor.
Example 7
Figure 15 is the side view of the brush of expression example 7.Figure 16 is form, parallel with the gyroaxis of turning motor for brush and the commutator of expression example 7 contacts wants portion's profile.Among Figure 15 and Figure 16, the brush 77 of this example in the axial two sides of commutator 2 promptly, the 4th, the 5th side, be formed with section respectively and be circular- arc conicoid 77a, 77a, 77b, 77b, be the shape of front end point respectively with respect to central portion with the front that forms commutator 2 sides with the rear end side of the reverse side of commutator 2.Because brush 77 is more prone to reverse, the 1st leading section and rearward end of commutator 2 sides are more prone to driving fit, therefore, can improve the characteristic degradation and the bad phenomenon such as noise or vibration of turning motor.
Example 8
Figure 17 is the side view of the brush of expression example 8.Figure 18 is form, parallel with the gyroaxis of turning motor for brush and the commutator of expression example 8 contacts wants portion's profile.Among Figure 17 and Figure 18, the brush 87 of this example has formed the axial little form of width globality of commutator 2.And, the axial two sides of commutator 2 promptly, the 4th, the 5th side, be provided with hemispheric protruding 87a, 87a.Thus, brush 87 reverses protruding 87a in casing 8a as fulcrum.Therefore, brush 87 is more prone to reverse, and the 1st leading section and rearward end of commutator 2 sides are more prone to driving fit, can improve the characteristic degradation and the bad phenomenon such as noise or vibration of turning motor.
Example 9
Figure 19 is the front view of the brush of expression example 9.Figure 20 wants portion's profile for the rectification form of brush on the direction parallel with the gyroaxis of turning motor of expression example 9.Among Figure 19, the brush 97 of this example in the two sides of the gyratory directions of commutator 2 promptly, the 2nd, the 3rd side, be formed with section linearly conicoid 97a, 97a respectively, to form the axial rear end side of giving electric wire 14 of not being provided with of commutator 2 sides is the front end point with respect to central portion shape.
In addition, but both model shapings of conicoid 97a, 97a that section is linearly, also can form by the processing of appending of cutting etc., but the protuberance that is formed at the recess two ends of commutator 2 sides must be level and smooth shape, so that it can not tangled by the groove 2b between the electrode 2a when the revolution of commutator 2.
Among Figure 20, commutator 2 connects and is fixed on the gyroaxis 1, is roughly cylindric.Brush 97 is incorporated in the brush carrier 8.The bootable brush 97 of the casing 8a of brush carrier 8 moves to commutator 2 directions (promptly, direction) vertical with the paper of Figure 20.Form fixed to some extent minim gap between brush 97 and casing 8a, brush 97 gently is incorporated in the casing 8a.
At this, as shown in figure 20, imagination a kind of like this occasion promptly, occasion after brush carrier 8 being assembled under with respect to the state of the commutator of turning motor, inclination Δ t degree.Brush 97 utilizes not shown spring to push to commutator 2 directions.The brush 97 of this example is owing in the axial rear end side of giving electric wire 14 of not being provided with of commutator 2, be formed with section linearly conicoid 97a, 97a, can reverse with around the axle of gyroaxis 1 quadrature of commutator 2 with little angle.Therefore, even brush carrier 8 is states of a kind of gyroaxis inclination Δ t degree with respect to turning motor, brush 97 is also parallel with respect to the gyroaxis of turning motor, and sliding surface contacts under normal condition.
Like this, in the turning motor of this example, brush 97 is in order to reverse around the axle parallel with the gyroaxis 1 of commutator 2 with little angle, the the 2nd, the 3rd two sides of the gyratory directions of commutator 2 be not provided with the axial rear end side of giving electric wire 14 at least, and its width is less than central portion.Thus, the single face contact of brush 57 can be prevented, the characteristic degradation and the bad phenomenon such as noise or vibration of turning motor can be improved.
Example 10
Figure 21 is the front view of the brush of expression example 10.Figure 22 wants portion's profile for the rectification form on the brush direction parallel with the gyroaxis of turning motor of expression example 10.Among Figure 21 and Figure 22, the brush 107 of this example in the two sides of the gyratory directions of commutator 2 promptly, the 2nd, the 3rd side, be formed with section linearly conicoid 107a, 107a, 107b, 107b respectively, to form the axial front of giving electric wire 14 of being provided with of commutator 2 and not to be provided with the shape that is the front end point to the rear end side of electric wire 14 respectively with respect to central portion.Thus, brush 107 is more prone to reverse, and can prevent the single face contact of brush 107, can improve the characteristic degradation and the bad phenomenon such as noise or vibration of turning motor.
In addition, but conicoid 107a, 107a, both model shapings of 107b, 107b that section is linearly, also can form by the worker that appends of cutting etc., but the protuberance that is formed at the recess two ends of commutator 2 sides must be level and smooth shape, so that it can not tangled by the groove 2b between the electrode 2a when the revolution of commutator 2.
Example 11
Figure 23 is the front view of the brush of expression example 11.Figure 24 wants portion's profile for the rectification form on the brush direction parallel with the gyroaxis of turning motor of expression example 11.Among Figure 23 and Figure 24, the brush 117 of this example in the two sides of the gyratory directions of commutator 2 promptly, the 2nd, the 3rd side, be formed with section respectively and be circular- arc conicoid 117a, 117a, 117b, 117b, to form the axial front of giving electric wire 14 of being provided with of commutator 2 and not to be provided with the shape that is the front end point to the rear end side of electric wire 14 respectively with respect to central portion.Thus, brush 117 is more prone to reverse, and can prevent the single face contact of brush 117, can improve the characteristic degradation and the bad phenomenon such as noise or vibration of turning motor.
In addition, but section is circular- arc conicoid 107a, 107a, both model shapings of 107b, 107b, also can form by the worker that appends of cutting etc., but the protuberance that is formed at the recess two ends of commutator 2 sides must be level and smooth shape, so that it can not tangled by the groove 2b between the electrode 2a when the revolution of commutator 2.
Example 12
Figure 25 is the front view of the brush of expression example 12.Figure 26 wants portion's profile for the rectification form on the brush direction parallel with the gyroaxis of turning motor of expression example 12.Among Figure 25 and Figure 26, the brush 127 of this example has formed the little form of width globality of the gyratory directions of commutator 2.And, the two sides of the gyratory directions of commutator 2 promptly, the 2nd, the 3rd side, be provided with hemispheric protruding 127a, 127a.Thus, brush 127 reverses protruding 127a in casing 8a as fulcrum.Therefore, the single face contact of brush 127 can be prevented, the characteristic degradation and the bad phenomenon such as noise or vibration of turning motor can be improved.
In addition, conicoid that is described respectively in above-mentioned example 1～4,5～8 and 9～12 the scheme and projection also can combination in any and are formed.Adopt this structure, even brush carrier 8 has been assembled into the form that tilts to a certain direction, brush also can sponge this inclination, towards normal direction.
Turning motor of the present invention has rotor and stator, described rotor comprises: gyroaxis, the axial perforation are arranged at the commutator on the gyroaxis, the armature core that is fixed in gyroaxis and package in the coil of armature core, and described stator comprises: the yoke of taking in rotor; Be fixed in the magnet of yoke; The brush of the roughly square bodily form that contacts with commutator; And leave between the commutator and be fixed on the shell with gap, take in brush and brush is carried out brush carrier to commutator direction guiding; Having contracts is located at the elastic component that pushes brush between brush carrier and the brush, to the commutator direction.For the 1st face that makes the commutator that is contacted with brush correctly contacts with the outer peripheral face of commutator, brush is in brush carrier, can move about (with fixed play carry out activity) be incorporated in around parallel with the gyroaxis of the commutator axle, with around the axle of the face quadrature that comprises gyroaxis of commutator, perhaps with around the axle of the gyroaxis quadrature of commutator at least 1 axle around, thus, even brush carrier has been assembled into the form that tilts to a certain direction, brush also can sponge this inclination, towards normal direction, can improve the characteristic degradation and the bad phenomenon such as noise or vibration of turning motor.
Again, brush for fixed angle can around the axle parallel, reverse with the gyroaxis of commutator, the the 2nd, the 3rd two sides of the gyratory directions of commutator at least with the rear end side of the reverse side of commutator, its width is less than central portion, thus, brush reverses in brush carrier easily, can prevent the single face contact of brush, can improve the characteristic degradation and the bad phenomenon such as noise or vibration of turning motor.
Again, brush for fixed angle can reverse with around the axle of the face quadrature that comprises gyroaxis of commutator, the axial the 4th, the 5th two sides of commutator at least with the rear end side of the reverse side of commutator, its width is less than central portion, thus, brush reverses in brush carrier easily, can prevent the single face contact of brush, can improve the characteristic degradation and the bad phenomenon such as noise or vibration of turning motor.
Again, brush for fixed angle can reverse with around the axle of the quadrature of the gyroaxis of commutator, the the 2nd, the 3rd two sides of the gyratory directions of commutator commutator axial be not provided with rear end side at least to electric wire, its width is less than central portion, thus, brush reverses in brush carrier easily, can prevent the single face contact of brush, can improve the characteristic degradation and the bad phenomenon such as noise or vibration of turning motor.
Again, brush for fixed angle can around the axle parallel, reverse with the gyroaxis of commutator, the 2nd of the gyratory directions of commutator, the 3rd two sides at least with the rear end side of the reverse side of commutator, its width is less than central portion, for with fixed angle can reverse with around the axle of the face quadrature that comprises gyroaxis of commutator, the axial the 4th of commutator, the 5th two sides at least with the rear end side of the reverse side of commutator, its width is less than central portion, for with fixed angle can reverse with around the axle of the quadrature of the gyroaxis of commutator, the 2nd of the gyratory directions of commutator, the 3rd two sides commutator axial be not provided with rear end side at least to electric wire, its width is less than central portion, thus, brush is more prone to reverse in brush carrier, the single face contact of brush can be further prevented, the characteristic degradation and the bad phenomenon such as noise or vibration of turning motor can be further improved.
And, peripheral part at commutator, along being provided with the electrode that extends with the parallel direction of gyroaxis full week, between adjacent electrode, be formed with the groove that extends with the parallel direction of gyroaxis, be formed at brush the 1st two ends protuberance be arranged at the 1st of brush beyond conicoid and the circular-arc level and smooth shape of face ground be connected, do not engage so that be formed at the protuberance at the 1st two ends of brush with groove, thus, the slip of commutator and brush is smooth and easy, can further improve bad phenomenon such as noise or vibration.
Claims (3)
1, a kind of turning motor has rotor and stator,
Described rotor comprises: gyroaxis, the axial perforation are arranged at the commutator on this gyroaxis, the armature core that is fixed in described gyroaxis and package in the coil of armature core,
Described stator comprises: the yoke of taking in described rotor; Be fixed in the magnet of this yoke; The brush of the roughly square bodily form that contacts with described commutator; And leave between the described commutator and be fixed on the described shell with gap, take in described brush and this brush is carried out brush carrier to the guiding of this commutator direction; Having contracts is located between this brush carrier and the described brush, push the elastic component of described brush to described commutator direction, it is characterized in that,
Described brush has: with the 1st of the contact of described commutator, be positioned at the 6th of the 1st an opposite side, the 2nd of the direction of rotation of described commutator and the 3rd, described commutator axial the 4th and the 5th,
Described brush for can with fixed angle around the axle parallel, reverse with the gyroaxis of described commutator, on described the 2nd and described the 3rd, form the conical surface so that in described the 1st and described the 6th the width dimensions of at least the 6 circumferencial direction less than the width dimensions between described the 2nd central portion and described the 3rd central portion.
2, a kind of turning motor has rotor and stator,
Described rotor comprises: gyroaxis, the axial perforation are arranged at the commutator on this gyroaxis, the armature core that is fixed in described gyroaxis and package in the coil of armature core,
Described stator comprises: the yoke of taking in described rotor; Be fixed in the magnet of this yoke; The brush of the roughly square bodily form that contacts with described commutator; And leave between the described commutator and be fixed on the described shell with gap, take in described brush and this brush is carried out brush carrier to the guiding of this commutator direction; Having contracts is located between this brush carrier and the described brush, push the elastic component of described brush to described commutator direction, it is characterized in that,
Described brush has: with the 1st of the contact of described commutator, be positioned at the 6th of the 1st an opposite side, the 2nd of the direction of rotation of described commutator and the 3rd, described commutator axial the 4th and the 5th,
Described brush forms the conical surface on described the 2nd, described the 3rd so that in described the 1st and described the 6th the width dimensions of described at least the 6th circumferencial direction less than the width dimensions between described the 2nd central portion and described the 3rd central portion,
Described brush also forms the conical surface on described the 4th, described the 5th so that in described the 1st and described the 6th at least the 6 axial width dimensions less than the width dimensions between described the 4th central portion and described the 5th central portion,
Described brush is also forming the conical surface near not connecting on described the 4th or described the 5th the 2nd, the 3rd that gives electric wire, so that the width dimensions that does not connect described the 4th or described the 5th circumferencial direction of giving electric wire is less than the width dimensions between described the 2nd central portion and described the 3rd central portion.
3, turning motor as claimed in claim 1 is characterized in that, at the peripheral part of described commutator, along being provided with the electrode that extends along the direction parallel full week with described gyroaxis, between this adjacent electrode, form the groove that extends along the direction parallel with described gyroaxis
Form the protuberance of curve form at the two ends of described the 1st close described commutator.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002094594 | 2002-03-29 | ||
| JP2002094594A JP3610049B2 (en) | 2002-03-29 | 2002-03-29 | Rotating electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1449093A CN1449093A (en) | 2003-10-15 |
| CN100479300C true CN100479300C (en) | 2009-04-15 |
Family
ID=28786182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB02127133XA Expired - Lifetime CN100479300C (en) | 2002-03-29 | 2002-07-26 | Rotary motor |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3610049B2 (en) |
| KR (2) | KR20030078595A (en) |
| CN (1) | CN100479300C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006311639A (en) * | 2005-04-26 | 2006-11-09 | Mitsubishi Electric Corp | Motor for electric power steering device |
| JP4496415B2 (en) * | 2007-08-27 | 2010-07-07 | 三菱電機株式会社 | Rotating electric machine and method of manufacturing brush |
| EP2369178B1 (en) * | 2010-03-26 | 2016-05-11 | Siemens Aktiengesellschaft | Arrangement for directing a lightning current within a wind turbine |
| JP5397310B2 (en) * | 2010-04-28 | 2014-01-22 | 日本精工株式会社 | Brush motor and electric power steering apparatus |
| DE102014225391A1 (en) * | 2014-12-10 | 2016-06-16 | Robert Bosch Gmbh | Commutation device for an electrical machine |
| DE102015203762A1 (en) * | 2015-03-03 | 2016-09-08 | Robert Bosch Gmbh | Brush holder for contacting a commutator |
| CN109120117B (en) * | 2018-09-21 | 2024-02-13 | 浙江硕和机器人科技有限公司 | Rotor and commutator mounting device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5268903A (en) * | 1975-12-05 | 1977-06-08 | Nippon Denso Co Ltd | Brush adjusting system of rotary electric machines |
| JPS5343809A (en) * | 1976-10-01 | 1978-04-20 | Hitachi Ltd | Brush for small sized motor |
| JPS53103504U (en) * | 1977-01-26 | 1978-08-21 | ||
| JPS555025A (en) * | 1978-06-23 | 1980-01-14 | Oopack Kk | Brush unit for small motor |
| KR870003592A (en) * | 1985-09-16 | 1987-04-18 | 정인영 | Stator brush for rotary electric machines |
| JPH0311365A (en) * | 1989-06-09 | 1991-01-18 | Kyocera Corp | Electrostatic charge image developer |
| JPH04200256A (en) * | 1990-11-02 | 1992-07-21 | Asmo Co Ltd | Brush holder |
| JP3333296B2 (en) * | 1993-12-24 | 2002-10-15 | アスモ株式会社 | Brush device for bidirectional rotation and method of manufacturing the same |
| JP2002218712A (en) * | 2001-01-17 | 2002-08-02 | Oopakku Kk | Brush for fuel supply device |
-
2002
- 2002-03-29 JP JP2002094594A patent/JP3610049B2/en not_active Expired - Lifetime
- 2002-07-22 KR KR1020020042978A patent/KR20030078595A/en active Search and Examination
- 2002-07-26 CN CNB02127133XA patent/CN100479300C/en not_active Expired - Lifetime
-
2005
- 2005-05-19 KR KR1020050042019A patent/KR20050051628A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1449093A (en) | 2003-10-15 |
| JP2003299318A (en) | 2003-10-17 |
| KR20050051628A (en) | 2005-06-01 |
| KR20030078595A (en) | 2003-10-08 |
| JP3610049B2 (en) | 2005-01-12 |
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