CN203289288U - Single-phase variable-pole double-speed asynchronous motor - Google Patents
Single-phase variable-pole double-speed asynchronous motor Download PDFInfo
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- CN203289288U CN203289288U CN201320208639XU CN201320208639U CN203289288U CN 203289288 U CN203289288 U CN 203289288U CN 201320208639X U CN201320208639X U CN 201320208639XU CN 201320208639 U CN201320208639 U CN 201320208639U CN 203289288 U CN203289288 U CN 203289288U
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Abstract
A single-phase variable-pole double-speed asynchronous motor comprises a case, a stator, a rotor, a main shaft and a junction box and further comprises capacitors C1 and C2. The single-phase variable-pole double-speed asynchronous motor is characterized in that a stator winding and the junction box are respectively a double-layer laminated winding and a junction box of a three-phase variable-pole double-speed asynchronous motor; when a single-phase power supply is respectively connected with wiring terminals U1 and W1, the capacitor C1 is connected in series between the wiring terminal U1 and a wiring terminal V1, and the motor is in a quadrupole variable-speed state; and when the single-phase power supply is respectively connected with the wiring terminals U1 and W1, the capacitor C2 is connected in series between the wiring terminals V1 and W1, wiring terminals V2, U2 and W2 are connected one another, and the motor is in a hexapole variable-speed state. The single-phase variable-pole double-speed asynchronous motor has the advantage that silicon steel sheet processing and line embedding operation process are simplified and the production efficiency is improved due to the adoption of a three-phase double-layer laminated stator winding.
Description
Technical field
The utility model relates to electric machine structure, particularly a kind of single-phase pole-changing double speed asynchronous machine.
Background technology
Three-phase change pole double speed asynchronous machine is comprised of casing, stator, rotor, main shaft, terminal box at present.Stator winding is double-layer lap formula winding, the V1 that arranges on winding, V2, U1, U2, W1, W2 the end of a thread respectively with terminal box in V1, the V2, U1, U2, W1, the W2 binding post connection that arrange.Three phase mains respectively with V1, U1, W1 binding post connection, and V2, U2, W2 binding post are two states, a kind of is three pole interconnections, a kind of is that three posts do not connect, thus double-layer lap formula winding is different circuit states, motor is two kinds of different rotating speeds.Can realize the speed adjusting of AC induction motor by change electric moter voltage frequency, number of pole-pairs, revolutional slip.When supply frequency one timing, by changing the magnetic pole logarithm of motor stator winding, the rotating speed of motor is changed, because not being reaches the speed governing purpose by the pressure regulation means, therefore this electric moter voltage frequency fluctuation scope is little, difference variation is also little, and control circuit has advantages of function admirable, meets the required design parameter of motor.Can constant-power speed regulation and speed regulation by constant torque be arranged according to the different designs of environment for use, belong to the pole change induction motor speed governing.
The stator double-winding motor speed change of monophase machine is except adopting the variable-frequency and variable-speed control circuit at present, the general transformation speed Control circuit (comprising the tap speed change) that adopts, when the running of transformation variable speed electric motors, particularly was in low speed, temperature rise efficiency was low, and when voltage ripple of power network, rotation speed change is large.This motor is divided into again four utmost point motor and 6-pole motors.
Chinese patent ZL200620040735.8 discloses " a kind of single-phase variable polar, double-speed asynchrnous motor ", its scheme is that stator winding is four utmost points, sextupole double winding, be connected in series respectively a C1 or C2 electric capacity in each winding, by diverter switch, connect respectively a winding, form and make it pole-changing windings.Its defect is: doublewound line embedding groove list groove is wanted embedding four lines, and flute profile will enlarge.The wire insertion technology operation easier strengthens.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned defect, and a kind of single-phase pole-changing double speed asynchronous machine is provided.
Scheme of the present utility model is: comprise casing, stator, rotor, main shaft, terminal box, also comprise C1, C2 electric capacity, it is characterized in that: stator winding and terminal box are double-layer lap formula winding and the terminal box of three-phase change pole double speed asynchronous machine; When single phase poaer supply was connected with U1, W1 binding post respectively, serial connection C1 electric capacity, be four utmost point speed change state between U1, V1 binding post; When single phase poaer supply is connected with U1, W1 binding post respectively, capacitor C 2 of serial connection between V1, W1 binding post, three pole interconnections between V2, U2, W2 binding post, motor is the sextupole speed change state.
The utility model has the advantage of: utilize three-phase double-layer lap formula stator winding, the silicon steel sheet manufacture simplification, the rule operating procedure is simplified, and enhances productivity.
Description of drawings:
Fig. 1 is prior art stator double-winding structure schematic diagram.
Fig. 2 is prior art three-phase change pole double speed motor double-layer lap formula winding leads schematic diagram.
Fig. 3 is prior art three-phase change pole double speed connection box for motor four utmost point winding diagrams.
Fig. 4 is prior art three-phase change pole double speed connection box for motor sextupole winding diagram.
Fig. 5 is the utility model terminal box four utmost point speed change winding diagrams.
Fig. 6 is the utility model terminal box sextupole speed change winding diagram.
Embodiment:
The utility model structure comprises casing, stator, rotor, main shaft, terminal box, also comprises C1, C2 electric capacity, it is characterized in that: stator winding and terminal box are double-layer lap formula winding and the terminal box of three-phase change pole double speed asynchronous machine; When single phase poaer supply respectively with U
1, W
1When binding post connects, at U
1, V
1Between binding post, serial connection C1 electric capacity, be four utmost point speed change state; When single phase poaer supply respectively with U
1, W
1When binding post connects, at V
1, W
1Capacitor C 2 of serial connection between binding post, V
2, U
2, W
2Three pole interconnections between binding post, motor is the sextupole speed change state.
Utilize three-phase pole-changing windings double-layer lap formula stator winding as single-phase pole-changing speed change stator winding, with its circuit and the transformation of existing single-phase pole-changing speed varying circuit organic assembling, access with single phase poaer supply, the vacant phase non-transformer access of three-phase binding post, serial connection is annotated in two wiring that increase C1, C2 electric capacity, the adjustment of learning from other's strong points to offset one's weaknesses of two scheme principles improves and realizes pole-changing windings, and under the congenerous state, work simplification, production efficiency improve.
V of the present utility model
1, U
1Binding post serial connection C1 and V
1, W
1Binding post serial connection C2, can realize with an interlock change over switch switching each other of two states; The interlock change over switch simultaneously also can be to V
2, U
2, W
2Sky between binding post three posts meets state and V
2, U
2, W
2The synchronous interlock switching of connected condition between binding post three posts.
Claims (1)
1. a single-phase pole-changing double speed asynchronous machine, comprise casing, stator, rotor, main shaft, terminal box, also comprises C1, C2 electric capacity, it is characterized in that: stator winding and terminal box are double-layer lap formula winding and the terminal box of three-phase change pole double speed asynchronous machine; When single phase poaer supply was connected with U1, W1 binding post respectively, serial connection C1 electric capacity, be four utmost point speed change state between U1, V1 binding post; When single phase poaer supply is connected with U1, W1 binding post respectively, capacitor C 2 of serial connection between V1, W1 binding post, three pole interconnections between V2, U2, W2 binding post, motor is the sextupole speed change state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320208639XU CN203289288U (en) | 2013-04-24 | 2013-04-24 | Single-phase variable-pole double-speed asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320208639XU CN203289288U (en) | 2013-04-24 | 2013-04-24 | Single-phase variable-pole double-speed asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203289288U true CN203289288U (en) | 2013-11-13 |
Family
ID=49545631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320208639XU Expired - Lifetime CN203289288U (en) | 2013-04-24 | 2013-04-24 | Single-phase variable-pole double-speed asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203289288U (en) |
-
2013
- 2013-04-24 CN CN201320208639XU patent/CN203289288U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131113 |
|
| CX01 | Expiry of patent term |