CN2595019Y - Graphite commutator for direct magnet motor - Google Patents
Graphite commutator for direct magnet motor Download PDFInfo
- Publication number
- CN2595019Y CN2595019Y CN 03200880 CN03200880U CN2595019Y CN 2595019 Y CN2595019 Y CN 2595019Y CN 03200880 CN03200880 CN 03200880 CN 03200880 U CN03200880 U CN 03200880U CN 2595019 Y CN2595019 Y CN 2595019Y
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- CN
- China
- Prior art keywords
- graphite
- colloid
- copper sheet
- commutator
- motor
- 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.)
- Expired - Fee Related
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- Dc Machiner (AREA)
Abstract
The utility model relates to a graphite commutator for a motor, particularly a graphite commutator for a direct magnet motor for automobiles and other using ranges. The utility model is provided with a disc colloid with a flange and a center hole; each copper sheet (1) passes through a fixing hole (5) extending in a radical direction correspondingly arranged on the colloid (4) to form a copper sheet colloid assembly and be pressed with a piece of graphite; a graphite ring (2) and the copper sheet (1) are pressed into a colloid fixing slot (6) fixed under the copper sheet. The commutator has the advantages of simple manufacturing process, firm structure, tight fit, no need of tin soldering, high rate of finished products after slotting a graphite flake, no phenomena of graphite flake falling and cracking, long service life, good electric conductivity, high cost effectiveness, high durability and low noise.
Description
Technical field
The utility model is the motor graphite commutator that the graphite commutator about the moving motor of straight magnetoelectricity, especially steam supply car fuel pump use.
Background technology
The copper motor commutator that produce the eighties, the commutation interface is subjected to effect of arc and wearing and tearing, and the life-span is extremely short.In new fuel oil used, the problem of copper commutator and the accelerated wear test of carbon interface was particularly evident, and particularly based on the fresh fuel of ethanol, the wearing and tearing at interface are particularly outstanding.Graphite commutator in the known technology has prolonged motor useful life.Two kinds of graphite commutators are arranged at present on the market, and a kind of is that little copper sheet with monoblock copper sheet or about 10 combines earlier with colloid again and with scolding tin copper and graphite solder bond is integral, and is cut into the commutation interface on the 10 ultra-Left right sides then.Owing to occur the not enough or appearance cavity of scolding tin often, consequently behind the terminal fluting, graphite flake comes off or bursts apart phenomenon in the welding.Another kind of graphite commutator is that copper sheet is inserted on the rubber base, uses hot-press method that graphite flake is pressed on Jiao Gai and the copper sheet, forming the graphite post in the graphite flake injection fixing hole three is fixed, and is processed into 8 utmost point graphite commutators then.Thisly snap in when combining with copper hook and rotor coil, because of being subjected to the influence of its coil-winding angle difference, copper cash is inserted after, the electrical conductivity that can produce about 10% is bad.
Summary of the invention
The utility model is further improvement and the development to the prior art graphite commutator.
The purpose of this utility model is to overcome weak point of the prior art, design a kind of cost poor benefit height, durable, low noise and conduct electricity good, the motor graphite commutator that rate of finished products is high.
Technical solution of the present utility model is; The moving motor graphite commutator of straight magnetoelectricity, has a disk colloid that has flange and centre bore, be pressed with some copper sheets on it, copper sheet radially extends folding puts down in the plane of disk colloid, and bending is the hook of being close to the colloid cylinder, special character of the present utility model is: each copper sheet all passes the fixing hole that radially extends of corresponding configuration on the colloid, the copper sheet colloid makes up and with a slice graphite pressing of putting on it, the graphite circle is pressed in the colloid holddown groove that is fixed under it together with copper sheet to constitute.Commutators such as 6 utmost points, 8 utmost points, 10 utmost points or 12 utmost points are slotted in processing then.
The new colloid centre hole side of this practicality is shaped on groove, with the sleeve pipe of fixing various internal diameters.
The utility model compared with prior art has following beneficial effect:
The copper sheet of the utility model buckle, by the holddown groove on colloid folding flat after, be fixed in colloid, be pressed into one with the graphite circle, technology is simple, sound construction, applying are tight, need not with the welding of tin layer, graphite flake fluting back rate of finished products height can not produce graphite flake and come off and burst apart phenomenon.Thereby has good useful life.Copper cash and copper hook spot-welded on, electrical conductivity is good, can not influence electrical conductivity because of coil angle difference.Characteristics with cost benefit height, durable, low noise.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is subjective figure of the present utility model.
Fig. 2 is the B-B cutaway view of Fig. 1.
Execution mode
Fig. 1, Fig. 2 have described the moving motor graphite commutator of the straight magnetoelectricity of being made up of copper sheet 1, graphite circle 2, disk colloid 4 and center sleeve 3.The copper sheet 1 that wherein is pressed in graphite circle 2 belows is formed with light filling bar by thick section.Bending is hook-shaped on the thick section cylinder that is affixed on colloid 4 along the colloid outer rim.Light filling bar penetrates from the fixing hole 5 of colloid flange.Radially extend through fixing hole 5.Fixing hole 5 is a rectangular opening, also can make trapezoidal hole.The graphite circle 2 that is distributed on disk colloid 4 cards flows in the matrix holddown groove of making on the colloid face 6.Matrix holddown groove 6 can be a rectangular opening, also can be circular port, can also be bellmouth, and it can be that blind hole also can be a through hole.Copper sheet 1 is pressed together in the matrix holddown groove 6 together with graphite circle 2, and is symmetrically distributed on the disk of colloid 4.Graphite circle 2 is slotted through branches such as machinings.Colloid centre bore 9 is shaped on two, but to be not limited to be two grooves 8, snaps in for the salient point 7 on the center sleeve 3, and sleeve pipe 3 and colloid 4 are combined.
The utility model is applicable to the moving motor of the straight magnetoelectricity of automobile and other scope of application.
For change of the present utility model and improvement will be possible, and can not exceed design and the scope that accessory claim limits.
Claims (6)
1. electro-motor graphite commutator, in particular for the moving motor graphite commutator of the straight magnetoelectricity of automobile and other scope of application, has a disk colloid that has flange and centre bore, be pressed with some copper sheets on it, copper sheet radially extends folding puts down in the plane of disk colloid, and bending is the hook of being close to the colloid cylinder, it is characterized in that: each copper sheet (1) all passes the fixing hole (5) that radially extends that colloid (4) is gone up corresponding configuration, the copper sheet colloid makes up and with a slice graphite pressing of putting on it, graphite circle (2) is pressed in the colloid holddown groove (6) that is fixed under it together with copper sheet (1) to constitute.
2. by the described electro-motor graphite commutator of claim 1, it is characterized in that described colloid centre hole side is shaped on groove (8).
3. by claim 1 or 2 described electro-motor graphite commutators, it is characterized in that described fixing hole (5) is a rectangular opening, or trapezoidal hole.
4. by claim 1 or 2 described electro-motor graphite commutators, it is characterized in that described holddown groove (6) is rectangle or circular port.
5. by the described electro-motor graphite commutator of claim 4, it is characterized in that described holddown groove (6) is a bellmouth.
6. by claim 1 or 2 described electro-motor graphite commutators, it is characterized in that described colloid centre bore (9) side is shaped on two grooves (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03200880 CN2595019Y (en) | 2003-01-13 | 2003-01-13 | Graphite commutator for direct magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03200880 CN2595019Y (en) | 2003-01-13 | 2003-01-13 | Graphite commutator for direct magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2595019Y true CN2595019Y (en) | 2003-12-24 |
Family
ID=33753070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03200880 Expired - Fee Related CN2595019Y (en) | 2003-01-13 | 2003-01-13 | Graphite commutator for direct magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2595019Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101483300B (en) * | 2008-01-11 | 2012-06-27 | 德昌电机(深圳)有限公司 | Commutator and method for improving connection between commutator segment conducting layers |
-
2003
- 2003-01-13 CN CN 03200880 patent/CN2595019Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101483300B (en) * | 2008-01-11 | 2012-06-27 | 德昌电机(深圳)有限公司 | Commutator and method for improving connection between commutator segment conducting layers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031224 |