CN101055962B - Cylinder carbon commutator and its making method - Google Patents
Cylinder carbon commutator and its making method Download PDFInfo
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- CN101055962B CN101055962B CN200710068964XA CN200710068964A CN101055962B CN 101055962 B CN101055962 B CN 101055962B CN 200710068964X A CN200710068964X A CN 200710068964XA CN 200710068964 A CN200710068964 A CN 200710068964A CN 101055962 B CN101055962 B CN 101055962B
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Abstract
A cylinder carbon commutator and its manufacturing process, the said cylinder carbon commutator is mainly composed of a plastic substrate, a multipolar metal frame, a pure carbon cylinder and fastening screws. The said plastic substrate forms as a whole with the metal frame by an injection molding manner, and the corresponding multipolar cylinder made from pure carbon is compounded on the plastic substrate; said manufacturing process, firstly machines the said metal frame and the said cylinder made from pure carbon; then plating a weldable metal layer on the cylinder made from pure carbon, one end surface of which is welded with the complex metal frame and adopts the silvering fastening screws to connect; another end surface adopts frooves on the plastic substrate and the cylinder made from carbon when injection molding, to lock the connection; finally, the whole commutator is passing through the commutator slotter, a plurality of electrodes, namely the needed multipolar are dividedthrough a slotting technology; it has characteristics such as a simple structure, the manufacturing process being simple and easy to process, greatly reduced production cost, a reliable and sound structure, and a long service life.
Description
Technical field
The present invention relates to a kind of cylinder carbon commutator and manufacture method thereof, particularly a kind of manufacture method of pure carbon commutator.
Background technology
At present, be used for the commutator of motor all based on the copper commutator.Motor when rotated, brush frequently commutates at commutator face, friction and produce heat, rotating speed is high more, surface temperature is also high more, at this moment commutator is radially and between adjacent sheet, deflection is bigger, grade of spark also becomes greatly, the copper working face of commutator is produced to burn lose; Also have, the fuel pump that is used for electro jet car, because motor is to be immersed in the fuel oil to work, and the gasoline that China produces at present, sulfur content is generally than higher, so working face of copper commutator, can be because of the chemical corrosion accelerated wear test of sulphur, the our times various countries synthesize in gasoline and add ethanol the utilization of regenerative resource, form the erosion of weak acid, the shortening that this is serious the useful life of copper commutator.The commutator that this pure carbon is made is particularly suitable for using among the operational environment of corrosive medium is arranged.The conference of the international refrigeration of U.S.'s 54th Annual Conference 2003 meetings and the 21 all proposes to adopt carbon commutator " Carbon Commutator Motors for Compressors-Long Life on the motor in the compressor of refrigerator and air-conditioning, Low Cost, Variable Speed " (collection of thesis catalogue 419).
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, and provide a kind of simple and reasonable, high temperature resistant, corrosion-resistant, the life-span is long, cost is lower.Simple, reliable cylinder carbon commutator of manufacturing process and manufacture method.
The objective of the invention is to realize by the following technical solutions, a kind of cylinder carbon commutator, it mainly by plastic substrate, multipole metallic framework, have the circular staving of corresponding multipole pure carbon with described metallic framework and holding screw is formed; Described plastic substrate forms one by injection moulding mode and metallic framework, is compounded with the circular staving of described corresponding multipole pure carbon on plastic substrate; Each of described metallic framework extremely goes up and all is processed with at least one preformed hole, and holding screw screws in the circular staving of pure carbon and is connected mutually; Described pure carbon round tank surface is coated with the layer of copper layer, and an end surface of the circular staving of described pure carbon is welded to connect for the welding plane and with metallic framework, and the other end end face is processed with by the groove of locking after the described plastic substrate injection moulding.
On circular staving of described pure carbon and the metallic framework at least six strip electrode grooves are arranged, and be divided into sextupole at least.
A kind of manufacture method of cylinder carbon commutator: at first, the circular staving of described metallic framework of machining and pure carbon;
Secondly, plate described copper layer on the circular staving of pure carbon, an end surface of the circular staving of described pure carbon is with the complex metal frame welding and adopt described holding screw to be connected, and described holding screw is silver-plated; The other end end face of the circular staving of described pure carbon utilizes the groove locking on the circular staving of plastic substrate and described pure carbon to be connected when injection moulding;
At last, whole commutator by the commutator slotter, is divided into a plurality of electrodes through groove milling technology, promptly needed multipole.
Behind the described commutator groove milling split pole, adopt whole the plating, with oxidation and the corrosion that prevents the bare metal skeleton.
The technology of described welding adopts the weld at metallic framework and circular staving one end surface of pure carbon, and the coated with tin slurry is pressed fusion welding, and is controlled at the following temperature of 400 degree.
Described metallic framework adopts punch press processing, and the circular staving of described pure carbon adopts machined into, and the process using of described welding is pressed the mode of fusion welding.
The present invention is because the chemical attribute of carbon is stable, heat-resisting quantity and good conductivity, has self-lubricating function again, thereby adopt pure carbon to carry out simple machining, peg graft with the copper sheet skeleton, make bucket formula carbon commutator when work, more firmly, reliable, the life-span is long, and commutator structure of the present invention is simple, simple and easy being convenient to of manufacture method processed, and production cost reduces greatly.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present invention.
Fig. 2 is another Facad structure schematic diagram of the present invention.
Fig. 3 is the structural representation of the circular staving of pure carbon of the present invention.
Metallic framework structural representation of the present invention during Fig. 4.
Embodiment
Below in conjunction with accompanying drawing the present invention is done detailed explanation.Shown in the accompanying drawing, the present invention is mainly by plastic substrate 5 and multipole metallic framework 1, and circular staving 4 of pure carbon and holding screw 3 are formed, and it is to utilize carbon, electrodeposited coating, weld layer, connecting screw, copper skeleton to conduct electricity.Described plastic substrate 5 forms one by injection moulding mode and metallic framework 1, is compounded with the circular staving 4 of corresponding multipole pure carbon on plastic substrate 5.On circular staving 4 of described pure carbon and the metallic framework 1 at least six strip electrode grooves are arranged, and be divided into sextupole at least, each of described metallic framework extremely goes up and all is processed with at least one preformed hole, and holding screw 3 screws in the circular staving 4 of pure carbon and is connected mutually.
Embodiment shown in the drawings produces for the automobile fuel pump armature, adopts 12 electrodes.
If electrode on circular staving 4 of described pure carbon and the metallic framework 1 is less than 12, and each is extremely gone up then should be provided with two preformed holes, adopts the holding screw 3 of silver-plated or tin to be connected in each pure carbon strip electrode.Circular staving 4 one end surfaces of described pure carbon are the welding plane, copper coating, and it and metallic framework 1 are welded to connect; The other end end face is processed with by the groove of locking after plastic substrate 5 injection mouldings.
A kind of manufacture method of cylinder carbon commutator, it is described metallic framework of machining and the circular staving of pure carbon at first; Secondly plate bondable metal layer on the circular staving of pure carbon, the one end surface is with the complex metal frame welding and adopt silver-plated holding screw to be connected (welding earlier, connecting screw on the back); The other end end face utilizes the groove locking on the circular staving of plastic substrate and pure carbon to be connected when then adopting injection moulding; At last, whole commutator by the commutator slotter, is divided into a plurality of electrodes through groove milling technology, promptly needed multipole.After the described commutator groove milling classification, adopt whole the plating, with oxidation and the corrosion that prevents the bare metal skeleton.Described welding procedure adopts the weld at metallic framework and circular staving one end surface of pure carbon, and the coated with tin slurry is pressed fusion welding, and is controlled at the following temperature of 400 degree.
Shown in Figure 1, drum type brake pure carbon commutator of the present invention, it mainly is made up of plastic substrate 5 and multipole metallic framework 1, and plastic substrate 5 forms one by injection moulding mode and metallic framework 1, is compounded with the circular staving 4 of corresponding multipole pure carbon above the described plastic substrate 5.Described metallic framework 1 is formed by punch press machining, sees shown in the accompanying drawing 4, and the circular staving of described pure carbon 4 is formed by machined into, see shown in the accompanying drawing 3, one end is processed as the plane, and its other end is processed with the contract groove, so that tightly buckle the circular staving 4 of pure carbon when the matrix injection moulding; Described welding 2 is adopted and is pressed the mode and the silver-plated connecting screw 3 of fusion welding fixedly connected, and the bowl classifier 6 of cutting split pole is arranged on circular staving 4 of pure carbon and metallic framework 1, as sextupole, and the ends of the earth, ten utmost points, 12 utmost points, 14 utmost points etc.; Log washer 6 is after being injection molded into one, finish by the commutator slotter, milling depth is the thickness of carbon shape garden staving, axially cuts off the circular staving 4 of whole pure carbon, make it to become the parts that carbon that conduction connects is made that are of a plurality of monomer strips, make between each carbon electrode sheet and do not form short circuit; And cut off the connection of metallic framework 1, and make it to become the metallic conductor part of a plurality of monomers, only rely on ambroin matrix 5 that a plurality of metallic conductor parts are conducted electricity parts that the carbon that is connected makes and connect into as a whole and can not come off with being.
All be processed with at least one preformed hole on each electrode of described metallic framework 1, so that connecting screw 3 screws in the circular staving 4 of pure carbon and is connected mutually.Metallic framework 1 inside (promptly to plastic substrate) side adopts to cut towards mode makes the wedge hook, and the injected plastic matrix is interior with the bond strength of reinforcement metal skeleton 1 with plastic substrate 5.
Described circular staving 1 copper coating, one end and metallic framework 1 are welded to connect 2, and adopt connecting screw 3 fixing and reinforce the connection.The other end car has by the groove of plastics locking, is anchored and fixed after plastic substrate 5 injection mouldings.
Shown in Figure 2, circular staving 1 of described pure carbon and metallic framework 1 are provided with 12 bowl classifiers 6, and are divided into 12 electrodes, corresponding to the hook of 12 armature windings.
Described metallic framework 1 is connected with plastic substrate 5 usefulness phenolic moulding powder injection mouldings with the circular staving 4 of pure carbon.
Described pure carbon is a kind of low resistance, high density, high-purity, high-intensity graphite material, the skeleton that described metallic framework 1 is made for the fine copper thin plate.
The present invention's copper facing on the circular staving of pure carbon 4 surfaces, thereby it is firm to guarantee with metallic framework 1 welding, metallic framework 1 is mainly the copper skeleton, welding 2 can be adopted the mode of pressing fusion welding, temperature is controlled at below 400 degree, because causing the circular staving of pure carbon 4 surfaces to go up copper plate, the too high meeting of temperature bubbles, influence weld strength, so when welding, starch in the weld coated with tin, the space does not appear in the time of can guaranteeing the welding of carbon plate and copper skeleton, add that the present invention has increased the connection of adopting between silver-plated connecting screw 3 fastening pure carbon electrodes 4 and the copper skeleton 1 again, add the copper plate on circular staving 4 inner surfaces of pure carbon, gather, can gain in strength and reduce contact resistance in the behind of each electrode and perpendicular to carbon brush.
During the connection of the present invention between circular stavings 4 of silver-plated connecting screw 3 fastening pure carbons and copper skeleton 1, the preformed hole that adopts the drill bit more a little bit smaller than screw 3 diameters to pass through the copper skeleton earlier bores an aperture on the circular staving 4 of pure carbon, the length of its degree of depth and screw 3 is corresponding, so that the smooth screw-in of connecting screw 3.The length of connecting screw 3 is exceeded with the axial length of effective working face of avoiding going deep into carbon brush and contacting with carbon electrode.The oversize operate as normal that can influence carbon brush and carbon electrode.
The present invention utilizes carbon, electrodeposited coating, weld layer, connecting screw, copper skeleton to conduct electricity.
After finishing above-mentioned operation, just can carry out common process and handle this drum type brake pure carbon commutator, as to the finish turning working face, the bending etc. of polishing, coiling hook; At last, above-mentioned global facility is electroplated, plating is with metals such as tin or silver, with oxidation and the corrosion that prevents exposed copper.
Claims (6)
1. cylinder carbon commutator is characterized in that: it mainly by plastic substrate (5), multipole metallic framework (1), have the circular staving (4) of corresponding multipole pure carbon with described metallic framework and holding screw (3) is formed; Described plastic substrate (5) forms one by injection moulding mode and metallic framework (1), is compounded with the circular staving (4) of described corresponding multipole pure carbon on plastic substrate (5); Each of described metallic framework (1) extremely goes up and all is processed with at least one preformed hole, is connected mutually so that holding screw (3) screws in the circular staving of pure carbon (4) and with described metallic framework and the circular staving of pure carbon; Described pure carbon round tank surface is coated with the layer of copper layer, and an end surface of the circular staving of described pure carbon is welded to connect for the welding plane and with metallic framework, and the other end end face is processed with by the groove of locking after the described plastic substrate injection moulding.
2. cylinder carbon commutator according to claim 1 is characterized in that on circular staving (4) of described pure carbon and the metallic framework (1) at least six strip electrode grooves being arranged, and is divided into sextupole at least.
3. the manufacture method of a cylinder carbon commutator as claimed in claim 1 is characterized in that:
At first, the circular staving of described metallic framework of machining and pure carbon;
Secondly, plate described copper layer on the circular staving of pure carbon, an end surface of the circular staving of described pure carbon is with the complex metal frame welding and adopt described holding screw to be connected, and described holding screw is silver-plated; The other end end face of the circular staving of described pure carbon utilizes the groove locking on the circular staving of plastic substrate and described pure carbon to be connected when injection moulding;
At last, whole commutator by the commutator slotter, is divided into a plurality of electrodes through groove milling technology, promptly needed multipole.
4. the manufacture method of cylinder carbon commutator according to claim 3, it is characterized in that described commutator groove milling split pole after, adopt whole the plating, with oxidation and the corrosion that prevents the bare metal skeleton.
5. the manufacture method of cylinder carbon commutator according to claim 3, the technology that it is characterized in that described welding adopts the weld at metallic framework and circular staving one end surface of pure carbon, the coated with tin slurry, press fusion welding, and be controlled at the following temperature of 400 degree.
6. the manufacture method of cylinder carbon commutator according to claim 3 is characterized in that described metallic framework adopts punch press processing, and the circular staving of described pure carbon adopts machined into, and the process using of described welding is pressed the mode of fusion welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710068964XA CN101055962B (en) | 2007-05-28 | 2007-05-28 | Cylinder carbon commutator and its making method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710068964XA CN101055962B (en) | 2007-05-28 | 2007-05-28 | Cylinder carbon commutator and its making method |
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| Publication Number | Publication Date |
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| CN101055962A CN101055962A (en) | 2007-10-17 |
| CN101055962B true CN101055962B (en) | 2010-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200710068964XA Expired - Fee Related CN101055962B (en) | 2007-05-28 | 2007-05-28 | Cylinder carbon commutator and its making method |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684026B (en) * | 2012-04-20 | 2014-08-13 | 宁波胜克换向器有限公司 | Carbon commutator and production method thereof |
| CN103762473B (en) * | 2013-12-31 | 2017-03-29 | 宁波胜克换向器有限公司 | A kind of powder compacting carbon face commutator and its manufacturing process |
| CN104400339B (en) * | 2014-10-28 | 2017-02-15 | 东莞市中一合金科技有限公司 | Processing technology for continuous strip compound solder band material and solder band material |
| EP3139455B1 (en) * | 2015-09-02 | 2019-08-21 | Schunk Carbon Technology GmbH | Disc blank for the preparation of commutator lamellae |
| CN108448830A (en) * | 2018-04-24 | 2018-08-24 | 深圳市精锐昌科技有限公司 | A kind of long-life micromotor |
| CN110607542A (en) * | 2019-09-05 | 2019-12-24 | 成都仙德科技有限公司 | Portable sound energy air conditioner processing technology |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1147711A (en) * | 1995-10-04 | 1997-04-16 | 陈启星 | DC motor commutator with several commutating rings |
| CN1304576A (en) * | 1998-05-01 | 2001-07-18 | 麦考德·温·特克斯特恩公司 | Carbon commutator |
| EP1568110B1 (en) * | 2003-12-17 | 2007-02-28 | Kolektor Group D.O.O. | Flat commutator |
| CN2894000Y (en) * | 2006-02-13 | 2007-04-25 | 史文浩 | Carbon composite planar commutator |
-
2007
- 2007-05-28 CN CN200710068964XA patent/CN101055962B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1147711A (en) * | 1995-10-04 | 1997-04-16 | 陈启星 | DC motor commutator with several commutating rings |
| CN1304576A (en) * | 1998-05-01 | 2001-07-18 | 麦考德·温·特克斯特恩公司 | Carbon commutator |
| EP1568110B1 (en) * | 2003-12-17 | 2007-02-28 | Kolektor Group D.O.O. | Flat commutator |
| CN2894000Y (en) * | 2006-02-13 | 2007-04-25 | 史文浩 | Carbon composite planar commutator |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2000-50577A 2000.02.18 |
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| CN101055962A (en) | 2007-10-17 |
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Granted publication date: 20100804 Termination date: 20120528 |