CN208369440U - More brush motor - Google Patents
More brush motor Download PDFInfo
- Publication number
- CN208369440U CN208369440U CN201820675756.XU CN201820675756U CN208369440U CN 208369440 U CN208369440 U CN 208369440U CN 201820675756 U CN201820675756 U CN 201820675756U CN 208369440 U CN208369440 U CN 208369440U
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- China
- Prior art keywords
- brush
- commutator
- electric
- contact
- brush assembly
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of more brush motor, including shell, are threaded through the intracorporal electric machine main shaft of shell and wear the commutator being fixed on electric machine main shaft；The periphery of the commutator is laid at least three brush assembly of electric, wherein brush assembly of electric constitutes a pair of of brush assembly of electric energization two-by-two, remaining is spare brush assembly of electric；Each brush assembly of electric is made of a brush and an external terminal, and each brush is abutted against with the outer peripheral surface of commutator.The utility model is arranged by the way that multiple groups brush is arranged in motor, realizes being used alternatingly for part, reduces failure rate, is avoided motor occurrence probability from being failure to actuate phenomenon, is extended the service life of direct current generator.
Description
Technical field
The utility model relates to a kind of motor more particularly to a kind of more brush motor.
Background technique
For existing miniature cocurrent electromotor, usually since accidentalia makes brush and commutator poor contact, out
The phenomenon that showing open circuit, motor caused not rotate.But such case is not the failure mechanisms of real meaning again；It often stirs and turns
Son stands a period of time, and brush contacts with commutator and contacts good, and motor can work normally again.Although this several
Forthright phenomenon of being failure to actuate is extremely rare, but is more fatal in the mechanism that the state operated by motor to realize is converted
Defect.
In addition, as shown in Figure 1, a pair of of brush assembly of electric, each brush and commutator are usually arranged in existing brush motor
Outer peripheral surface abuts against, and the end that brush is contacted with commutator is the straight contact of single piece type, once because of reasons such as manufacture and operations,
Phenomena such as making contact deform, the contact with commutator are point contact, and motor is easy to cause failure mechanisms phenomenon occur.
As shown in Fig. 2, on brush with the length of the end of commutator point contact be L, since there are manufacturing variations or brush for commutator
Contact with commutator is in bad order, causes to be failure to actuate.
It would therefore be highly desirable to solve the above problems.
Utility model content
Purpose of utility model: effectively motor occurrence probability is avoided to be failure to actuate now the purpose of the utility model is to provide a kind of
More brush motor of elephant.
Technical solution: it in order to achieve the above object, the utility model discloses the first more brush motor, including shell, wears
It is located at the intracorporal electric machine main shaft of shell and wears the commutator being fixed on electric machine main shaft；The periphery of the commutator be laid with to
Few 3 brush assembly of electric, wherein brush assembly of electric constitutes a pair of of brush assembly of electric energization two-by-two, remaining is spare brush assembly of electric；Each electricity
Brush assemblies are made of a brush and an external terminal, and each brush is abutted against with the outer peripheral surface of commutator.
Wherein, the quantity of the brush assembly of electric is 4, and the brush assembly of electric being oppositely arranged two-by-two constitutes a pair of of brush group
Part, which can alternate energisation.Four brushes of the utility model are at right angles arranged in commutator surrounding respectively, can
Effectively avoid interfering with each other between brush；Wherein two pairs of brush assembly of electric can alternately connect electricity, reduce failure rate, avoid motor from occurring several
Forthright phenomenon of being failure to actuate, extends the service life of direct current generator.
Preferably, each brush includes being fixed with the base portion of external terminal and extending to form and commutate from base curve is straight
The end of device periphery face contact, forms acute angle between base portion and end.The brush shape of the utility model can reduce production
Cost, and convenient for brush to be effectively arranged in narrow space.
Further, the front side of the end of the brush has at least two sheet touchings being in contact with commutator outer peripheral surface
Head.The utility model center brush is set as at least two blade contacts on front side of end, can effectively increase the contact with commutator
Area, even if can also keep brush and commutator outer peripheral surface because manufacture reason causes extremely individual blade contacts that warping phenomenon occurs
Contact, be not in contact bad phenomenon, reduce failure rate, motor occurrence probability is effectively avoided to be failure to actuate phenomenon.
Furthermore it is laterally away from commutator outer peripheral surface before the end of each brush and is formed by bending the touching of single piece type arc
Head, the arc surface electric contact and commutator outer peripheral surface arc contact.The utility model will be arranged to single piece type arc on front side of brush end
Contact, it can solve the problems, such as arrangement of the brush in small space, while the contact surface of arc surface electric contact and commutator can be increased
Product avoids because warping phenomenon occurs for arc surface electric contact leading to that brush contact bad phenomenon occurs.
Furthermore it is laterally away from commutator outer peripheral surface bending before the end of each brush and forms single piece type hook formula touching
Head, the hook formula contact and commutator outer peripheral surface plane contact.The utility model hooks formula for single piece type is arranged on front side of brush end
Contact equally can solve arrangement problem of the brush in small space.
The utility model discloses brush motor more than second, including shell, it is threaded through the intracorporal electric machine main shaft of shell and wears
If being fixed on the commutator on electric machine main shaft, the periphery of the commutator is equipped with one group of brush assembly of electric, each brush assembly of electric by
At least two brushes and an external terminal form, and the brush top-bottom cross shifts to install on same external terminal, and every
One brush is abutted against with the outer peripheral surface of commutator.Second direct current generator using intersect on an external terminal shift to install to
Lack two brushes and brush is powered simultaneously, the contact area with commutator is increased by the brush that top-bottom cross shifts to install, is kept away
Exempt from because warping phenomenon occurs for brush to lead to that brush contact bad phenomenon occurs.
Preferably, each brush include be fixed with external terminal base portion and from base curve it is straight extend to form with
The end of commutator periphery face contact, forms acute angle between base portion and end.
The utility model discloses the third more brush motor, including shell, the intracorporal electric machine main shaft of shell are threaded through, with electricity
The rotor that owner's axis rotates together with, and the stator for being immobilized in the shell wall and being arranged oppositely with rotor, it is described positioned at rotor
The skeleton for fixed rotor, the varistor for reducing noise of motor are successively symmetrically worn on the electric machine main shaft of upper and lower ends
And commutator, the periphery of each commutator are equipped at least one set of brush assembly of electric, each brush assembly of electric by a brush with
One external terminal composition, each brush are abutted against with the outer peripheral surface of commutator.The third direct current generator of the utility model is logical
Excessively one group of acknowledgment copy of setting, effectively avoids motor from failure mechanisms phenomenon occur.
Preferably, the periphery of the commutator is evenly equipped with two pairs of brush assembly of electric, and the brush assembly of electric being oppositely arranged two-by-two is one
To brush assembly of electric；Each brush is of similar shape, and each brush includes being fixed with the base portion of external terminal and from base
Portion is bent the straight end extended to form with commutator periphery face contact, and acute angle is formed between base portion and end.
The utility model has the advantages that compared with prior art, the utility model has the advantage that the first is more for the utility model first
Two pairs of brush assembly of electric are provided in brush motor, two pairs of brush assembly of electric can alternately connect electricity, reduce failure rate, avoid motor from occurring several
Forthright phenomenon of being failure to actuate, extends the service life of direct current generator；Secondly the brush shape of the utility model is identical, can reduce and be fabricated to
This, and convenient for brush to be effectively arranged in narrow space；Furthermore four brushes of the utility model are at right angles arranged respectively
It is distributed in commutator surrounding, can effectively avoid and interfered with each other between brush；There are also the settings of the front side of the utility model center brush end
For at least three blade contacts, the contact area with commutator can be effectively increased, even if because manufacture reason leads to extremely individual sheets
Warping phenomenon occurs for contact, can also keep brush with the contact of commutator outer peripheral surface, is not in contact bad phenomenon, reduces event
Barrier rate effectively avoids motor occurrence probability from being failure to actuate phenomenon；Furthermore the utility model will be arranged to a piece of on front side of brush end
Formula arc surface electric contact, it can solve the problems, such as arrangement of the brush in small space, while arc surface electric contact and commutator can be increased
Contact area avoids because warping phenomenon occurs for arc surface electric contact leading to that brush contact bad phenomenon occurs；Second of direct current generator
It shifts to install at least two brushes using intersecting on an external terminal and brush while being powered, shifted to install by top-bottom cross
Brush increase with the contact area of commutator, avoid because warping phenomenon occurs for brush cause brush contact occurs it is bad existing
As；Last the third direct current generator of the utility model effectively avoids motor from failure mechanisms occur more by the way that one group of acknowledgment copy is arranged
Phenomenon.
Detailed description of the invention
Fig. 1 is the inside top figure of motor in the prior art；
Fig. 2 is the structural schematic diagram of prior art center brush；
Fig. 3 is the inside top figure of motor in embodiment 1；
Fig. 4 is the cross-sectional view of motor in embodiment 1；
Fig. 5 is the structural schematic diagram of 1 center brush of embodiment；
Fig. 6 is the inside top figure of motor in embodiment 2；
Fig. 7 is the inside top figure of motor in embodiment 3；
Fig. 8 is the structural schematic diagram of 3 center brush of embodiment；
Fig. 9 is the structural schematic diagram of 4 center brush of embodiment；
Figure 10 is the cross-sectional view of motor in embodiment 5；
Figure 11 is the structural schematic diagram of 5 center brush of embodiment；
Figure 12 is the cross-sectional view of motor in embodiment 6.
Specific embodiment
The technical solution of the utility model is described further with reference to the accompanying drawing.
Embodiment 1
As shown in figure 4, more brush motor, including it is shell 1, cap 9 compatible with shell, electric machine main shaft 2, rotor 3, fixed
Son 4, commutator 5, brush assembly of electric 6, skeleton 7 and varistor 8.Rotor 3 is threaded through on electric machine main shaft 2, and can be with electric machine main shaft 2
It rotates together with, and is fixed on electric machine main shaft 2 by skeleton 7.Stator 4 is fixed on 1 inner wall of shell and is arranged oppositely with rotor,
Magnetic field is formed after energization between rotor and stator.Commutator 5 is threaded through on electric machine main shaft 2, positioned at the side of rotor.
As shown in figure 3, the periphery of commutator 5 is evenly equipped with two pairs of brush assembly of electric 6, the brush assembly of electric being oppositely arranged two-by-two is one
To brush assembly of electric, each brush assembly of electric 6 is made of a brush 601 and an external terminal 602, each brush 601 with
The outer peripheral surface of commutator 5 abuts against.Each brush 601 is of similar shape, and each brush 601 includes being fixed with external terminal
602 base portion 603 and be bent the straight end 604 extended to form with 5 periphery face contact of commutator from base portion 603, base portion 603 with
Acute angle is formed between end 604.The mutual angle in the end 604 of adjacent brush 601 is 90 ° in the utility model,
And do not interfere between each other；The length L1=L-1/4D, D of the end 604 of its center brush are the diameter of commutator, as shown in Figure 5.
The front side of the end of the utility model brush 601 has at least three blade contacts 605 being in contact with commutator outer peripheral surface, can
The contact area with commutator is effectively increased, even if also may be used because manufacture reason causes extremely individual blade contacts that warping phenomenon occurs
The contact of brush and commutator outer peripheral surface is kept, reduction failure rate effectively avoids motor occurrence probability from being failure to actuate phenomenon.
Embodiment 2
As shown in fig. 6, the structure of embodiment 2 is identical as the structure of embodiment 1, difference place is: in embodiment 2, electricity
The quantity of brush assemblies 6 is 3, uses wherein 2 brush assembly of electric can arbitrarily be selected to constitute a pair of of brush assembly of electric energization, reduces failure
Rate.
Embodiment 3
As shown in fig. 7, the structure of embodiment 3 is identical as the structure of embodiment 1, difference place is: in embodiment 3, often
Commutator outer peripheral surface, which is laterally away from, before the end of one brush 601 is formed by bending single piece type arc surface electric contact 606, the arc surface electric contact
606 with 5 outer peripheral surface arc contact of commutator；Wherein as shown in figure 8, the end front side arc dot and end and base of brush 601
The distance of portion's intersection point is L1=L-1/4D, and D is the diameter of commutator.The utility model will be arranged to single piece type on front side of brush end
Arc surface electric contact, it can solve the problems, such as arrangement of the brush in small space, while connecing for arc surface electric contact and commutator can be increased
Contacting surface product avoids because warping phenomenon occurs for arc surface electric contact leading to that brush contact bad phenomenon occurs.
Embodiment 4
As shown in figure 9, the structure of embodiment 4 is identical as the structure of embodiment 1, difference place is: in embodiment 4, often
It is laterally away from commutator outer peripheral surface before the end of one brush 601 and is formed by bending single piece type hook formula contact 606, the hook formula contact
606 with 5 outer peripheral surface arc contact of commutator；On front side of the end of its center brush 601 arc dot and end and base portion intersection point away from
From for L1=L-1/4D, D is the diameter of commutator.The utility model hooks formula contact for single piece type is arranged on front side of brush end,
That is, it can solve arrangement problem of the brush in small space.
Embodiment 5
As shown in Figure 10, more brush motor, including shell 1, cap 9 compatible with shell, electric machine main shaft 2, rotor 3,
Stator 4, commutator 5, brush assembly of electric 6, skeleton 7 and varistor 8.Rotor 3 is threaded through on electric machine main shaft 2, and can be with motor master
Axis 2 rotates together with, and is fixed on electric machine main shaft 2 by skeleton 7.Stator 4 is fixed on 1 inner wall of shell and sets with rotor opposite direction
It sets, forms magnetic field between rotor and stator.Commutator 5 is threaded through on electric machine main shaft 2, positioned at the side of rotor.
As shown in figure 11, the periphery of commutator 5 is equipped with one group of brush assembly of electric 6 in the utility model, and each brush assembly of electric 6 is
It is made of at least two brushes 601 and an external terminal 602,601 top-bottom cross of brush is shifted to install same external
On terminal 602, and outer peripheral surface of each brush 601 with commutator 5 abuts against.Wherein each brush 601 shape having the same
Shape, each brush 601 include being fixed with the base portion 603 of external terminal 602 and extending to form and commutator from base curve is straight
The end 604 of periphery face contact, forms acute angle between base portion 603 and end 604.The front side of the end of brush 601 has
At least three blade contacts 605 being in contact with commutator outer peripheral surface, can effectively increase the contact area with commutator, even if because
Manufacture reason causes extremely individual blade contacts that warping phenomenon occurs, and can also keep the contact of brush with commutator outer peripheral surface, not
It is in contact bad phenomenon, reduces failure rate, motor occurrence probability is effectively avoided to be failure to actuate phenomenon.
Embodiment 6
As shown in figure 12, a kind of more brush motor of the utility model, including shell 1, be adapted with shell, be located on shell
Cap 9, electric machine main shaft 2, rotor 3, stator 4, commutator 5, brush assembly of electric 6, skeleton 7 and the varistor 8 at lower both ends.Rotor 3
It is threaded through on electric machine main shaft 2, and can be rotated together with electric machine main shaft 2, and is solid by being located at 3 upper and lower ends skeleton 7 of rotor
It is scheduled on electric machine main shaft 2.Skeleton 7 is successively symmetrically equipped on the electric machine main shaft 2 of the upper and lower ends of rotor 3, for reducing
The varistor 8 and commutator 5 of noise of motor, stator 4 are fixed on 1 inner wall of shell and are arranged oppositely with rotor, rotor and stator
Between form magnetic field.Commutator 5 is threaded through on electric machine main shaft 2, positioned at the side of rotor；The periphery of each commutator 5 is equipped with extremely
Few one group of brush assembly of electric 6, each brush assembly of electric 6 are made of a brush 601 and an external terminal 602, each brush 601
Outer peripheral surface with commutator 5 abuts against.Wherein one group of skeleton 7, varistor 8, brush assembly of electric 6 and commutator 5 are acknowledgment copy；
The utility model effectively avoids motor from failure mechanisms phenomenon occur more by the way that one group of acknowledgment copy is arranged.
Wherein the periphery of commutator 5 is evenly equipped with two pairs of brush assembly of electric 6, and the brush assembly of electric 6 being oppositely arranged two-by-two is a pair of of electricity
Brush assemblies；Each brush 601 is of similar shape, and each brush 601 includes 603 He of base portion for being fixed with external terminal
From the straight end 604 extended to form with commutator periphery face contact of base curve, formed between base portion 603 and end 604 sharp
Angle angle.The front side of the end of brush 601 has at least three blade contacts 605 being in contact with commutator outer peripheral surface, can have
Effect increases the contact area with commutator, even if can also protect because manufacture reason causes extremely individual blade contacts that warping phenomenon occurs
The contact for holding brush with commutator outer peripheral surface is not in contact bad phenomenon, reduces failure rate, effectively avoids motor from occurring several
Forthright phenomenon of being failure to actuate.
Claims (10)
1. a kind of more brush motor, it is characterised in that: including shell (1), the electric machine main shaft (2) being threaded through in shell (1) and wear
If the commutator (5) being fixed on electric machine main shaft (2)；The periphery of the commutator (5) is laid at least three brush assembly of electric
(6), wherein brush assembly of electric (6) constitutes a pair of of brush assembly of electric energization two-by-two, remaining is spare brush assembly of electric；Each brush assembly of electric
(6) it is made of a brush (601) and an external terminal (602), periphery of each brush (601) with commutator (5)
Face abuts against.
2. more brush motor according to claim 1, it is characterised in that: the quantity of the brush assembly of electric (6) is 4, and
The brush assembly of electric being oppositely arranged two-by-two constitutes a pair of of brush assembly of electric, which can alternate energisation.
3. more brush motor according to claim 1, it is characterised in that: each brush (601) includes being fixed with external connection end
It the base portion (603) of sub (602) and is extended to form and the end of commutator (5) periphery face contact from base portion (603) bending is straight
(604), acute angle is formed between base portion (603) and end (604).
4. more brush motor according to claim 3, it is characterised in that: the front side of the end of the brush (601) has
At least two blade contacts (605) being in contact with commutator outer peripheral surface.
5. more brush motor according to claim 3, it is characterised in that: the front side of the end of each brush (601)
Single piece type arc surface electric contact (606) are formed by bending to far from commutator outer peripheral surface, the arc surface electric contact (606) and commutator (5) periphery
Face arc contact.
6. more brush motor according to claim 3, it is characterised in that: the front side of the end of each brush (601)
Formula contact (606) are hooked to single piece type is formed far from the bending of commutator outer peripheral surface, the hook formula contact (606) and commutator (5) periphery
Facial plane contact.
7. a kind of more brush motor, it is characterised in that: including shell (1), the electric machine main shaft (2) being threaded through in shell (1) and wear
If the commutator (5) being fixed on electric machine main shaft (2), the periphery of the commutator (5) is equipped with one group of brush assembly of electric (6), each
Brush assembly of electric (6) is made of at least two brushes (601) and an external terminal (602), brush (601) top-bottom cross
It shifts to install on same external terminal (602), and outer peripheral surface of each brush (601) with commutator (5) abuts against.
8. more brush motor according to claim 7, it is characterised in that: each brush (601) includes outside being fixed with
The base portion (603) of connecting terminal (602) and from the straight end (604) extended to form with commutator periphery face contact of base curve,
Acute angle is formed between base portion (603) and end (604).
9. a kind of more brush motor, it is characterised in that: including shell (1), the electric machine main shaft (2) being threaded through in shell (1), with electricity
The rotor (3) that owner's axis (2) rotates together with, and the stator for being fixed on shell (1) inner wall and being arranged oppositely with rotor (3)
(4), the skeleton for fixed rotor (3) is successively symmetrically worn on the electric machine main shaft (2) of the upper and lower ends positioned at rotor (3)
(7), for reducing the varistor (8) and commutator (5) of noise of motor, the periphery of each commutator (5) is equipped at least
One group of brush assembly of electric (6), each brush assembly of electric (6) is made of a brush (601) and an external terminal (602), each
Outer peripheral surface of the brush (601) with commutator (5) abuts against.
10. more brush motor according to claim 9, it is characterised in that: the periphery of the commutator (5) is evenly equipped with two pairs
Brush assembly of electric (6), the brush assembly of electric being oppositely arranged two-by-two (6) are a pair of of brush assembly of electric；Each brush (601) includes fixing
There is the base portion (603) of external terminal and from the straight end (604) extended to form with commutator periphery face contact of base curve, base
Acute angle is formed between portion (603) and end (604).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820675756.XU CN208369440U (en) | 2018-05-07 | 2018-05-07 | More brush motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820675756.XU CN208369440U (en) | 2018-05-07 | 2018-05-07 | More brush motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208369440U true CN208369440U (en) | 2019-01-11 |
Family
ID=64934082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820675756.XU Expired - Fee Related CN208369440U (en) | 2018-05-07 | 2018-05-07 | More brush motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208369440U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109660078A (en) * | 2019-01-28 | 2019-04-19 | 青岛海信移动通信技术股份有限公司 | Motor |
-
2018
- 2018-05-07 CN CN201820675756.XU patent/CN208369440U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109660078A (en) * | 2019-01-28 | 2019-04-19 | 青岛海信移动通信技术股份有限公司 | Motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |