CN2096840U - Brushless transform speed regulating asynchronous motor - Google Patents
Brushless transform speed regulating asynchronous motor Download PDFInfo
- Publication number
- CN2096840U CN2096840U CN 91220020 CN91220020U CN2096840U CN 2096840 U CN2096840 U CN 2096840U CN 91220020 CN91220020 CN 91220020 CN 91220020 U CN91220020 U CN 91220020U CN 2096840 U CN2096840 U CN 2096840U
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- CN
- China
- Prior art keywords
- rotor
- coil
- asynchronous motor
- winding
- utility
- 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.)
- Withdrawn
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- Dc Machiner (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The utility model relates to a brushless transform speed regulating asynchronous motor. The winding coil of each rotor of the utility model is independent, each independent coil which is connected in series with a rectifying element is then embedded in a slot of a rotor core to form a self-short-circuit, and the number of poles generated by the winding pitch is equal to the number of poles of a stator field. The rotor coils and the rectifying elements are cast into an integral component by epoxy resins. The utility model has the advantages of simple structure, low cost and large speed regulating range.
Description
The utility model relates to a kind of variable voltage speed control asynchronous motor.
Tandem control alternating current motor in the existing variable voltage speed control asynchronous motor, stator winding is arranged, be installed in phase-wound rotor on the motor reel, formations such as the equipped outward three-phase zero formula active inversion cascade adjustable-speed system device of axle, bearing, collector ring, brush, front and rear cover, motor field frame, machine, the collector ring that such variable voltage speed control asynchronous motor has, brush contact easily produce spark, the use place is restricted, the equipped outward three-phase zero formula active inversion cascade adjustable-speed system device of machine, complex structure, the cost height, maintenance difficult.
Task of the present utility model is the variable voltage speed control asynchronous motor of design brushless.
The utility model is finished the work like this: on the basis of existing squirrel-cage threephase asynchronous, design separate rotor winding coil, coil is connected on lead-in wire on the tie-point of skeleton cylindrical after being embedded in the rotor successively, mutually independently in every coil rectifier cell of series connection have short circuit of one's own, the number of poles that coil span produces is equal to the stator field number of poles, and rectifier cell evenly is installed in the insulation framework and with the epoxy resin casting is fixing and forms global facility with rotor.
Accompanying drawing 1 is the utility model structure diagram.
Accompanying drawing 2 is the utility model rotor winding loop construction principle sketches.
Accompanying drawing 3 is the utility model rotor structure sketches.
Accompanying drawing 4 is the double-deck coiled wire-wound coil schematic diagrames of the utility model.
Now be described with reference to the accompanying drawings the utility model, accompanying drawing is a most preferred embodiment of the present utility model.New design rotor and rotor coil on squirrel-cage threephase asynchronous basis, brushless variable voltage speed control asynchronous motor is by stator winding (6), rotor core (2) rotor coil (3), be connected on the rectifier cell (4) in the rotor coil (3), motor shaft (1), bearing (8), motor casing (9), fan (12) constitutes, 32 separate grooves (seeing accompanying drawing 2) rotor coils (3) divide double-layer winding (seeing accompanying drawing 4) to be embedded in motor rotor core (2) the similar number groove, inlay back no latitude glass fiber binding strap (7) tighten, the number of poles that coil span produces is equal to the stator field number of poles, rectifier cell (4) is connected in the rotor coil (3) by same rectification direction and evenly is installed in successively on the insulation framework (5), forms global facility with epoxy resin is fixing with rotor.Rotor is whole to be installed on the motor reel with back-up ring (11) and block (10).
The utility model compared with prior art has the following advantages: change the stator input voltage and can realize that speed adjustable range is big to rotor stepless speed regulation, and can steady running not have unusual noise, the utility model does not design brush, can not produce electric spark, rectification in the machine, simple in structure, cost is low, starting current times is little, and the starting torque multiple is big, low speed power factor height, nothing is paid and is added the speed governing energy consumption, and economize on electricity significantly.
Claims (2)
1, a kind of variable voltage speed control asynchronous motor, by stator winding, the wound rotor of the separate winding of three covers, collector ring, brush, axle, bearing, housing, the variable voltage speed control asynchronous motor that the three-phase zero formula active inversion cascade adjustable-speed system device that machine is outer etc. constitutes, it is characterized in that every rotor winding coil of motor is separate, the number of poles that coil span produces is equal to the stator field number of poles, connect in coil rectifier cell and have short circuit of one's own with the rotor winding, series connection rectifier cell in coil evenly is installed in the insulation framework and with epoxy resin is fixing and forms global facility with rotor.
2, brushless variable voltage speed control asynchronous motor according to claim 1 is characterized in that connecting rectifier cell with rotor coil the back colligation is fixing forming global facility with rotor again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91220020 CN2096840U (en) | 1991-07-06 | 1991-07-06 | Brushless transform speed regulating asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91220020 CN2096840U (en) | 1991-07-06 | 1991-07-06 | Brushless transform speed regulating asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2096840U true CN2096840U (en) | 1992-02-19 |
Family
ID=4927172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91220020 Withdrawn CN2096840U (en) | 1991-07-06 | 1991-07-06 | Brushless transform speed regulating asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2096840U (en) |
-
1991
- 1991-07-06 CN CN 91220020 patent/CN2096840U/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |