CN201918701U - Short-circuit prevention coil rack structure of automobile engine - Google Patents
Short-circuit prevention coil rack structure of automobile engine Download PDFInfo
- Publication number
- CN201918701U CN201918701U CN2010206961137U CN201020696113U CN201918701U CN 201918701 U CN201918701 U CN 201918701U CN 2010206961137 U CN2010206961137 U CN 2010206961137U CN 201020696113 U CN201020696113 U CN 201020696113U CN 201918701 U CN201918701 U CN 201918701U
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- Prior art keywords
- short
- coil rack
- automobile engine
- rack structure
- short circuit
- 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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- Synchronous Machinery (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The utility model relates to a short-circuit prevention coil rack structure of an automobile engine, which belongs to the technical field of automobile engines, and is characterized in that a pair of axially projecting long lugs made of insulating materials is arranged on a coil rack. The short-circuit prevention coil rack structure has the advantage of prevention of short circuit of the automobile engine.
Description
Technical field
The utility model relates to a kind of bobbin of automobile current generator, relates in particular to a kind of anti-short circuit type coil holder structure of automobile current generator, belongs to the automobile current generator technical field.
Background technology
Automobile current generator is the main power supply of automobile, and its function is when normal working of engine, to all power consumption equipment power supplies, simultaneously to charge in batteries.Along with the progress of automotive engineering, the power consumption of automobile is more and more higher.Before 20 years, generally about 500 watts, now general intermediate-size car generator is all about 1000 watts for the output of a generator of intermediate-size car.The increase of generator power increases and increases along with power consumption equipment on the car.Generator on the automobile all is air-cooled generator now, enters casing by the blowing of the fan behind the belt pulley and cools off.Lundell brushless AC generator wherein is simple in structure, easy to maintenance.Its two pawls have only a pawl extremely directly to be fixed on the rotor axis of electric in extremely, and another pawl utmost point then is fixed on last pawl with non-magnetic conduction coupling ring and extremely goes up.When rotor rotated, a pawl utmost point just drove another pawl utmost point and rotates in stator together, and when having direct current to pass through in the winding of magnetic field, the pawl utmost point is magnetized, and has just formed rotating magnetic field.The magnetic field winding of Lundell brushless AC generator is static; it is fixed on the rear end cap by a yoke bracket; so no longer need brush, the situation of short circuit still usually can appear in the unstable or fault of not generating electricity of the generating that does not also just exist brush and collector ring loose contact to cause.
The utility model content
The purpose of this utility model is for solving the problems of the technologies described above, providing a kind of automobile current generator to prevent the short circuit type coil holder structure.
Above-mentioned technical purpose of the present utility model is achieved by the following technical programs:
A kind of automobile current generator is prevented the short circuit type coil holder structure, and described bobbin is provided with the screech owl of being made by insulating material of a pair of axial projections.
The inventor is when the short circuit problem of research automobile current generator, found the key point of problem, promptly generally speaking, it is extremely surperficial until rotor current collector ring copper sheet weld that the rotor coil enamelled wire is close to pawl, and the insulation resistance value of enamelled wire is limited, and the insulation property of enamelled wire are insecure comparatively speaking, makes the wearing and tearing of bag lacquer when long-time friction or slight impact are just very possible, thereby directly influence insulation resistance value, phenomenon is short-circuited.In the utility model technique scheme, on bobbin, be provided with a screech owl, when concrete the installation, the rotor coil enamelled wire passes the solidus circle of screech owl, when electromotor rotor pressing, make the enamelled wire extremely to be close to until rotor current collector ring copper sheet weld on the surface, effectively stoped rotor coil enamelled wire and pawl extremely surperficial directly contact the and the short circuit problem that produces across screech owl 2 and pawl.
Preferred as technique scheme, described screech owl is provided with the solidus circle that is used to place enamelled wire.
In sum, the utlity model has following beneficial effect:
The utlity model has the characteristics that prevent the automobile current generator short circuit.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Among the figure, 1-bobbin, 2-screech owl.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
This specific embodiment only is to explanation of the present utility model; it is not to restriction of the present utility model; those skilled in the art can make the modification that does not have creative contribution to present embodiment as required after reading this specification, but as long as all are subjected to the protection of Patent Law in claim scope of the present utility model.
As shown in Figure 1, a kind of automobile current generator is prevented the short circuit type coil holder structure, and bobbin 1 is provided with axial raised screech owl 2, and screech owl 2 is provided with the solidus circle.When concrete the installation, the rotor coil enamelled wire passes the solidus circle of screech owl 2, when electromotor rotor pressing, make the enamelled wire extremely to be close to until rotor current collector ring copper sheet weld on the surface, effectively stoped rotor coil enamelled wire and pawl extremely surperficial directly contact the and the short circuit problem that produces across screech owl 2 and pawl.
Claims (2)
1. the anti-short circuit type coil holder structure of an automobile current generator is characterized in that: described bobbin is provided with the screech owl of being made by insulating material of a pair of axial projections.
2. a kind of automobile current generator according to claim 1 is prevented the short circuit type coil holder structure, it is characterized in that: described screech owl is provided with the solidus circle that is used to place enamelled wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206961137U CN201918701U (en) | 2010-12-31 | 2010-12-31 | Short-circuit prevention coil rack structure of automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206961137U CN201918701U (en) | 2010-12-31 | 2010-12-31 | Short-circuit prevention coil rack structure of automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201918701U true CN201918701U (en) | 2011-08-03 |
Family
ID=44418491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206961137U Expired - Fee Related CN201918701U (en) | 2010-12-31 | 2010-12-31 | Short-circuit prevention coil rack structure of automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201918701U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110401173A (en) * | 2019-07-19 | 2019-11-01 | 中国科学院电工研究所 | A kind of short trouble isolation structure of aero dynamo |
-
2010
- 2010-12-31 CN CN2010206961137U patent/CN201918701U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110401173A (en) * | 2019-07-19 | 2019-11-01 | 中国科学院电工研究所 | A kind of short trouble isolation structure of aero dynamo |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20151231 |
|
| EXPY | Termination of patent right or utility model |