CN104303378A - Flat commutator and method for mounting a flat commutator onto a shaft of an electrical machine - Google Patents
Flat commutator and method for mounting a flat commutator onto a shaft of an electrical machine Download PDFInfo
- Publication number
- CN104303378A CN104303378A CN201380026976.XA CN201380026976A CN104303378A CN 104303378 A CN104303378 A CN 104303378A CN 201380026976 A CN201380026976 A CN 201380026976A CN 104303378 A CN104303378 A CN 104303378A
- Authority
- CN
- China
- Prior art keywords
- main body
- contact
- plane commutator
- commutator
- segment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- 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
- H01R39/04—Commutators
- H01R39/06—Commutators other than with external cylindrical contact surface, e.g. flat commutators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/06—Manufacture of commutators
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
The invention relates to a flat commutator (10) having contact lamellae (20), which are spaced apart from each other and are arranged in a first body (12) consisting of an electrically insulating material in such a manner that they form a flat brush running surface (21) in the axial direction. The flat commutator (10) according to the invention is characterized in that the flat commutator (10) has a second body (14) consisting of an electrically insulating material having contact segments (16) which run around the edge radially and are spaced apart from each other, wherein each of the contact segments (16) is provided at an axial section with a winding connection hook (18), and wherein the first body (12) grasps the winding connection hook (18) of the second body (14) in the axial direction. The invention further relates to an electrical machine, in particular a direct current motor, having the flat commutator (10) according to the invention, and to a method for mounting the flat commutator (10) onto a shaft (26) of an electrical machine, in particular of a direct current motor.
Description
Technical field
The present invention relates to by a kind of method on a kind of plane commutator of the type of independent claims and axle for plane commutator being installed to motor especially direct current machine.
Background technology
For the plane commutator of motor extensively known to people.Therefore by the known a kind of plane commutator of DE 10 2,006 046 666 A1, in this plane commutator, in order to be configured with some contact pin with along the circumferential direction widening at edge side stabilisation hub body in the end regions of hook side and/or in the end regions of axially opposed contact-segment side.Prevent fractureing or cutting off of the some parts of contact pin when to continue processing plane type commutator in the armature of motor by this way.In addition, by widening along the circumferential direction in the end regions of at least one axis of contact pin, also achieve a kind of to plastics more favorably fiber orientation, this serves active influence to the solidness of the preferred hub body be made up of plastics.Because the element using the thermoset plastics that preferably has glass fibre or glass marble and/or similar other to reinforce is as the manufacture of hub body, therefore also have the material of contact pin, thus they help hub body stabilisation in that region and the raising of mechanical strength based on being uniformly distributed with of the larger plastic quality in the section widened of contact pin.
In addition, by DE 10 2,004 051 460 A1 known for by coil termination hook hot pressing (Hot Staking thermal bonding) to a kind of method on the commutator of motor and a kind of device.At this, the first electrode and corresponding coil termination hook electric contact are connected and are pressed on the contact chip of commutator.In addition, at least one second electrode circumferentially to be installed to by such cover in side direction it is arranged coil termination hook contact chip on, make electrode load coil termination hook from both sides.
Summary of the invention
By plane commutator of the present invention with some contact chips spaced apart, these contact chips are disposed such in the first main body made at the material by electric insulation, them are made axially to define a smooth brush running face, compare the plane commutator by prior art, be by the advantage of plane commutator of the present invention, its structure height and its external diameter are reduced.For this reason, by plane commutator of the present invention have be made up of the material of electric insulation, with radial loop around and the second main body of contact-segment spaced apart, wherein, each in contact-segment is equipped with a coil termination hook in axial section, and wherein, the first main body surrounds the coil termination hook of the second main body vertically.Another advantage obtained by the two-piece construction of plane commutator is, can separately band edge manufacture with sensitivity and first main body of brush running face of high-quality, thus effectively can avoid the damage that the armature installation process because of motor causes.In addition, less for using expending of the different carbonaceous amount of contact chip.
Other advantage of the present invention draws by the feature illustrated in the dependent claims and by accompanying drawing and ensuing explanation.
Specify in an advantageous manner, the first and/or second main body respectively by a radial direction at interior, that axial region that is that work as secure fit seat directly torsionally surrounds motor axle.At this, the axial region worked as secure fit seat of the first main body also works as the sealing mechanism relative to axle simultaneously, wherein, the sealing mechanism of secure fit seat by and axle interference fit or by the realization of additional O-ring.
In order to ensure electric current from the brush of motor through plane commutator until winding, the contact chip of the first main body and the contact-segment of the second main body can in a particularly advantageous manner respectively by radial direction and/or the connector bindiny mechanism of axis be electrically connected to each other.The known brazing expended for contact chip and contact-segment contacting or pressing process can be avoided by this way.In addition, when the contact chip of the first main body and the contact-segment coating of the second main body or non-coating and/or when being equipped with a kind of surface texture, the one optimization be electrically connected can be obtained.
In addition advantageously, the first and second main bodys at least have the geometry of a form fit respectively in the part of its contact site, and this geometry works as the rotation preventing mechanism between the first and second main bodys.Avoid the less desirable rotation in the region of connector bindiny mechanism by this way and therefore avoid the interruption of the electrical contact between contact chip and contact-segment.In addition, the radial lockable mechanism during the winding process of the winding of motor is achieved by the geometry of the form fit of the second main body.
Specify in another design of the present invention, the first main body has the annular groove of an axis on its excircle, and O-ring or filler can be loaded into this annular groove as sealing mechanism.
Finally, the present invention relates to a kind of method for being installed to by plane commutator of the present invention on the axle of motor especially direct current machine, the method has the following step:
Second main body of plane commutator is passed on axle;
The coil termination hook of at least one winding of motor and the contact-segment of the second main body is coupled together;
First main body of plane commutator is passed on axle like this, makes the first main body axially surround the coil termination hook of the second main body.
In avoiding heat by method of the present invention advantage is compared to existing technology input on the brush running face of plane commutator, and this heat input may produce when winding and coil termination hook contacting when thermal bonding process.Avoid the impaired of the brush running face that may occur during contacting and when armature is installed on axle in addition.In addition, also after the winding contacting of coil termination hook and direct current machine, the different carbonaceous amount of contact chip can also be used according to the requirement to direct current machine.
Accompanying drawing explanation
Hereinafter exemplarily illustrate the present invention by accompanying drawing 1 to 4, wherein, Reference numeral identical in figure shows the same part having identical working method.
In accompanying drawing:
Fig. 1 is the stereogram by plane commutator of the present invention;
Fig. 2 is the profile by plane commutator of the present invention;
Fig. 3 is the two width stereograms (Fig. 3 a and 3b) by the first main body of plane commutator of the present invention; And
Fig. 4 is the two width stereograms (Fig. 4 a and 4b) by the second main body of plane commutator of the present invention.
Embodiment
Fig. 1 shows the stereogram by plane commutator 10 of the present invention of a motor be not shown specifically.But technical staff is known by prior art, this plane commutator where is reasonably arranged on an axle of motor and which kind of object this plane commutator meets.Thus, should do to inquire into further to this herein.
Especially consider that a kind of direct current machine of the fuel pump for automobile is as motor.But also can consider other application such as in ventilation unit, window regulator, windscreen-wiper drive, chair regulator or analog.In addition, also can be used in the application outside generator or automobile by plane commutator of the present invention.
Being two-piece types by plane commutator 10 of the present invention and there is the first main body 12 and the second main body 14 by Fig. 1, these two main bodys respectively by a kind of material of electric insulation, such as, have the thermoset plastics of glass fibre or glass marble and/or other similar element reinforced to form.First and second main bodys 12 or 14 are preferably made up of a kind of moulded plastic.Can also see in FIG, the second main body 14 its outside circumferentially have radial around and contact-segment 16 spaced apart, wherein, each of contact-segment 16 is equipped with a coil termination hook 18 in axial section.Can see in addition, the first main body 12 surrounds the coil termination hook 18 of the second main body 14 along the axis of plane commutator 10.The external diameter that relatively can both reduce plane commutator by the common plane commutator of prior art in an advantageous manner thus also reduces its structure height.In addition, make such as not to be subject to mechanical impact when armature inserts motor by protective winding contacting by surrounding coil termination hook 18.
Fig. 2 shows a section of transverse cross sectional plane commutator 10.The first main body 12 can be seen again and with contact-segment 16 and the second main body 14 of coil termination hook 18 of being connected integratedly with this contact-segment.In the first main body 14, the contact chip 20 that the spacing of the contact-segment 16 of corresponding second main body 16 is spaced apart is arranged to brush running face 21 by radial loop around ground.Contact chip 20 is for the connecting to the electric contact of the winding that coil termination hook 18 connects by the corresponding brush of guiding in brush box of armature of motor.Because to be technical staff known and they do not have great importance to the present invention, in addition so for clarity sake should illustrate for these elements.
First main body 12 by a radial direction at interior, that axial region 22 that is that work as secure fit seat torsionally surrounds motor axle 26.As a supplement or alternative, the second main body 14 also can have a corresponding axial region 24 for being torsionally connected with axle 26, and wherein, axial region 22 and/or axial region 24 can work as the sealing mechanism relative to axle 26.This point especially combined fuel pump is favourable, and in fuel pump, contact chip 20 and/or contact-segment 16 face impaired threat due to rodent liquid.But can wash away other application of commutator from surrounding at liquid, the sealing of the relative commutator 10 of axle 26 also may be favourable.At this, sealing mechanism such as can be implemented as and realize with the interference fit of axle 26 or by a unshowned additional O-ring.
The contact chip 20 of the first main body 12 and the contact-segment 16 of the second main body 14 can be electrically connected to each other respectively by some axially overlapping after two main bodys 12 and 14 are spliced connector bindiny mechanisms 28.As alternative or supplementary, be also contemplated that, connector bindiny mechanism 28 extends along the radial direction of plane commutator 10 and/or is configured to spring-loaded.The known brazing expended for the contacting of contact chip 20 and contact-segment 16 or pressing process can be avoided by this way.In addition, when connector bindiny mechanism 28 coating of contact chip 20 or contact-segment 16 and/or when being equipped with a kind of surface texture, the improvement of electric interface can be reached.But according to the material (normally carbon or graphite) of contact chip 20 and the material (normally copper or copper alloy) of contact-segment 16, the connector bindiny mechanism 28 without coating also can be considered.
To rotate relative to the second main body 14 unintentionally in order to avoid the first main body 12 and electrical connection therefore between contact chip 20 and contact-segment 16 is interrupted, first and second main bodys 12 or 14 at least have a kind of geometry 30 of form fit respectively on the subregion of their contact site, and it is for anti-rotation.The geometry 30 of the form fit of the second main body 14 works in this as the radial lockable mechanism during the winding process of the winding of motor.
In order to further sealing plane type commutator 10, the excircle of the first main body 12 is arranged a radial loop around the annular groove 32 of axis, such as unshowned O-ring or packing material can be loaded into this annular groove.
In figures 3 and 4 respectively at different three-dimensional view (Fig. 3 a, 3b; 4a, 4b) in show the first main body 12 and the second main body 14 apart from each other.The band connector bindiny mechanism 28 can seeing contact chip 20 in fig 3b well and the structure of inside of the first main body 12 of axial region 22 worked as secure fit seat and the layout of the contact-segment 16 of the second main body 14, the geometry 30 of the form fit of the second main body and illustrating in figs 4 a and 4b as the axial region 24 that secure fit seat works.
By the method for being installed on the axle 26 of motor by plane commutator 10 of the present invention, there is the following step:
Second main body 14 of plane commutator 10 is passed on axle 26;
The coil termination hook 18 of the contact-segment 16 of at least one winding of motor and the second main body 14 is coupled together; And
First main body 12 of plane commutator 10 is passed like this on axle 26, makes the first main body 12 axially surround the coil termination hook 18 of the second main body 14.
In avoiding heat by method of the present invention advantage is compared to existing technology input on the brush running face 21 of plane commutator 10, and this heat input may produce when winding and coil termination hook 18 contacting when thermal bonding process.In addition, also after the winding contacting of coil termination hook 18 and direct current machine, the different carbonaceous amount of contact chip can also be used according to the requirement to direct current machine.
Finally it should be appreciated that, shown embodiment had both been not limited to Fig. 1 to 4 and had also been not limited to the first main body 12 of band contact chip 20, the form illustrated there being with the second main body 14 of contact-segment 16 and their size.The accurate structure of annular groove 32 is also only exemplary and is not restrictive.
Claims (12)
1. plane commutator (10), there is contact chip (20) spaced apart, described contact chip is arranged in the first main body (12) be made up of the material of electric insulation, they define smooth brush running face (21) vertically, it is characterized in that, described plane commutator (10) has is made up of the material of electric insulation, with radial loop around and second main body (14) of contact-segment (16) spaced apart, each contact-segment in wherein said contact-segment (16) is equipped with coil termination hook (18) in axial section, and wherein said first main body (12) surrounds the coil termination hook (18) of described second main body (14) vertically.
2. by plane commutator (10) according to claim 1, it is characterized in that, described first and/or described second main body (12,14) directly axle (26) is torsionally surrounded in axial region (22,24) that is interior, that work as secure fit seat with radial respectively.
3., by plane commutator (10) according to claim 2, it is characterized in that, described first main body (12) as described in the axial region (22) that works of secure fit seat also work as the sealing mechanism relative to described axle (26) simultaneously.
4. by plane commutator (10) according to claim 3, it is characterized in that, the sealing mechanism of described secure fit seat is by the interference fit with described axle (26) or realize by additional O-ring.
5. by the plane commutator (10) described in aforementioned any one of claim, it is characterized in that, the contact chip (20) of described first main body (12) and the contact-segment (16) of described second main body (14) can respectively by radial direction and/or the connector bindiny mechanism (28) of axis be electrically connected to each other.
6. by plane commutator (10) according to claim 5, it is characterized in that, the contact chip (20) of described first main body (12) and contact-segment (16) coating of described second main body (14) or not coating and/or be equipped with surface texture.
7. by the plane commutator (10) described in aforementioned any one of claim, it is characterized in that, described first and described second main body (12,14) at least there is the geometry (30) of form fit respectively on the subregion of their contact site, described geometry works as the rotation preventing mechanism between described first and described second main body (12,14).
8. by the plane commutator (10) that claim 7 is stated, it is characterized in that, the geometry (30) of the described form fit of described second main body (14) works as the radial lockable mechanism during the winding process of the winding of motor especially direct current machine.
9., by the plane commutator (10) described in aforementioned any one of claim, it is characterized in that, described first main body (12) has axial annular groove (32) on its excircle.
10., by plane commutator (10) according to claim 9, it is characterized in that, O-ring or filler can be loaded in described annular groove (32) as sealing mechanism.
11. motors, especially direct current machine, it is with the plane commutator (10) pressed described in aforementioned any one of claim.
12. methods for being installed to by the plane commutator (10) described in any one of claim 1 to 10 on the axle (26) of motor especially direct current machine, have the following step:
Second main body (14) of described plane commutator (10) is passed to described axle (26);
The coil termination hook (18) of the contact-segment (16) of at least one winding of described motor and described second main body (14) is coupled together;
First main body (12) of described plane commutator (10) is passed to described axle (26), makes described first main body (12) axially surround the coil termination hook (18) of described second main body (14).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012010251.8 | 2012-05-25 | ||
| DE102012010251A DE102012010251A1 (en) | 2012-05-25 | 2012-05-25 | Plankommutator and method for mounting a flat commutator on a shaft of an electric machine |
| PCT/EP2013/058432 WO2013174596A1 (en) | 2012-05-25 | 2013-04-24 | Flat commutator and method for mounting a flat commutator onto a shaft of an electrical machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104303378A true CN104303378A (en) | 2015-01-21 |
| CN104303378B CN104303378B (en) | 2018-02-23 |
Family
ID=48190961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380026976.XA Expired - Fee Related CN104303378B (en) | 2012-05-25 | 2013-04-24 | Plane commutator and the method for being installed to plane commutator on the axle of motor |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2856578B1 (en) |
| CN (1) | CN104303378B (en) |
| DE (1) | DE102012010251A1 (en) |
| WO (1) | WO2013174596A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040150280A1 (en) * | 2003-01-22 | 2004-08-05 | Denso Corporation | Motor, fuel pump, commutator, and method for manufacturing a commutator |
| DE102006046666A1 (en) * | 2006-09-29 | 2008-04-03 | Robert Bosch Gmbh | Flat commutator for e.g. electrical machine, has bar widened in circumferential direction when axially viewed from brush running surface in direction of connection hook and/or viewed from connection hook in direction of running surface |
| CN101167220A (en) * | 2005-06-16 | 2008-04-23 | 考特及布克斯有限公司 | Flat commutator and method for producing a flat commutator |
| CN101490912A (en) * | 2006-05-10 | 2009-07-22 | 科莱克特集团公司 | Commutator rotor of an electrical machine and procedure for its manufacture |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004051460A1 (en) | 2004-10-22 | 2006-04-27 | Robert Bosch Gmbh | Method and device for hot pressing hooks on commutators |
-
2012
- 2012-05-25 DE DE102012010251A patent/DE102012010251A1/en not_active Withdrawn
-
2013
- 2013-04-24 EP EP13719085.6A patent/EP2856578B1/en not_active Not-in-force
- 2013-04-24 CN CN201380026976.XA patent/CN104303378B/en not_active Expired - Fee Related
- 2013-04-24 WO PCT/EP2013/058432 patent/WO2013174596A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040150280A1 (en) * | 2003-01-22 | 2004-08-05 | Denso Corporation | Motor, fuel pump, commutator, and method for manufacturing a commutator |
| CN101167220A (en) * | 2005-06-16 | 2008-04-23 | 考特及布克斯有限公司 | Flat commutator and method for producing a flat commutator |
| CN101490912A (en) * | 2006-05-10 | 2009-07-22 | 科莱克特集团公司 | Commutator rotor of an electrical machine and procedure for its manufacture |
| DE102006046666A1 (en) * | 2006-09-29 | 2008-04-03 | Robert Bosch Gmbh | Flat commutator for e.g. electrical machine, has bar widened in circumferential direction when axially viewed from brush running surface in direction of connection hook and/or viewed from connection hook in direction of running surface |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013174596A1 (en) | 2013-11-28 |
| CN104303378B (en) | 2018-02-23 |
| EP2856578A1 (en) | 2015-04-08 |
| EP2856578B1 (en) | 2018-02-21 |
| DE102012010251A1 (en) | 2013-11-28 |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180223 Termination date: 20210424 |