CN104852525A - Variable frequency motor used for pump - Google Patents
Variable frequency motor used for pump Download PDFInfo
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- CN104852525A CN104852525A CN201410561373.6A CN201410561373A CN104852525A CN 104852525 A CN104852525 A CN 104852525A CN 201410561373 A CN201410561373 A CN 201410561373A CN 104852525 A CN104852525 A CN 104852525A
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- encoder
- support
- frequency motor
- variable frequency
- pump
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Abstract
The invention discloses a variable frequency motor used for a pump. The variable frequency motor is mainly composed of a rotating shaft, a machine seat, a stator iron core, a rotor, a stator winding, a flexible coupling, an encoder and an axial-flow fan. The axial-flow fan is installed in a fan housing. The fan housing is fixed on a rear end cover through screws. The rear end cover is further provided with the flexible coupling and a support. The support is provided with the encoder. The encoder feeds running information collected by the flexible coupling back to an external controller through a data and instruction transmission line, then the controller calculates corresponding running data and sends out an instruction to a frequency converter, and the frequency converter controls the rotor to rotate. The variable frequency motor used for the pump has the advantages that the driving performance is highly efficient, the control characteristic is good, the encoder is arranged to realize frequency-conversion speed-regulation controlling over a feedback vector closed loop, the axial-flow fan is independently arranged to improve the ventilation and cooling effect during low-speed running, the noise is low, the vibration is slight, and the variable frequency motor has a good development prospect in application to a pump system controlled in a frequency-conversion speed-regulation manner.
Description
Technical field
The present invention relates to technical field of motors, specifically a kind of pump variable-frequency motor.
Background technology
In water pump water supply system, its water supply cost depends primarily on electrical power consumption of water pump.Pump variable frequency speed regulating control is conducive to energy-conservation.All motors can frequency control, and be all the mode of speed regulation adopting common electric machine supporting additional frequency converter in most occasion, electric motor for pump adopts common electric machine implement variable frequency regulating speed control and be not suitable for, this is main because frequency converter can produce harmonic wave, and harmonic wave can cause electric efficiency decline, temperature rise, noise, vibration, fatigue to general motor and reduce the problems such as useful life.
Summary of the invention
The object of the present invention is to provide the pump variable-frequency motor that a kind of efficiency is high, good cooling results, noise are low.
The technical solution adopted for the present invention to solve the technical problems is: a kind of pump variable-frequency motor is primarily of rotating shaft, support, stator core, rotor, stator winding, flexible coupler, encoder and aerofoil fan composition, described stator winding is embedded in stator core, stator core and stator winding are fixed in support, support two ends are equiped with front end housing and rear end cap respectively, all bearing is equiped with in the center of front end housing and rear end cap, bearing is built with rotating shaft, rotating shaft is provided with rotor between front end housing and the bearing of rear end cap, rotor is installed in the inner chamber of stator core and stator winding, and keep certain interval with stator core and stator winding, bearing is used for limit rotary shaft and ensures the relative position of rotor and stator core and stator winding, and ensure rotor can in the inner chamber of stator core and stator winding Rotating with Uniform.Described aerofoil fan is installed in fan housing, fan housing is screwed on rear end cap, rear end cap is also equiped with flexible coupler and support, support is equiped with encoder, flexible coupler, encoder and aerofoil fan are all installed in fan housing, the operation information that encoder is collected by flexible coupler feeds back to outside controller through data and command line, calculate corresponding service data by controller again and send instruction to frequency converter, then operated by Frequency Converter Control rotor, so form feedback vector closed-loop control.
Support is provided with main junction box, for three-phase electricity wiring connecting stator winding and provide AC380V power supply, fan housing is provided with time terminal box, for single-phase electricity wiring connecting axle flow fan with provide AC220V power supply.
The invention has the beneficial effects as follows, the present invention has high efficiency driveability and good control characteristic, the variable frequency regulating speed control that encoder achieves feedback vector closed loop is set, and the ventilating and cooling effect that independently aerofoil fan is conducive to improving slow-speed of revolution operation is set, its noise is low, it is little to vibrate, in the pump system being applied to variable frequency regulating speed control, have good development prospect.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2 is elementary diagram of the present invention.
In figure, 1, rotating shaft, 2, front end housing, 3, support, 4, main junction box, 5, stator core, 6, rotor, 7, stator winding, 8, rear end cap, 9, bearing, 10, flexible coupler, 11, secondary terminal box, 12, support, 13, encoder, 14, fan housing, 15, aerofoil fan, 16, screw, 17, three-phase electricity wiring, 18, frequency converter, 19, single-phase electricity wiring, 20, controller, 21, data and command line.
Embodiment
With regard to accompanying drawing 1 and accompanying drawing 2, a kind of pump variable-frequency motor of the present invention is described in detail below below.
As shown in Figures 1 and 2, a kind of pump variable-frequency motor of the present invention is primarily of rotating shaft 1, support 3, stator core 5, rotor 6, stator winding 7, flexible coupler 10, encoder 13 and aerofoil fan 15 form, described stator winding 7 is embedded in stator core 5, stator core 5 and stator winding 7 are fixed in support 3, support 3 two ends are equiped with front end housing 2 and rear end cap 8 respectively, bearing 9 is all equiped with in the center of front end housing 2 and rear end cap 8, bearing 9 is built with rotating shaft 1, rotating shaft 1 is provided with rotor 6 between front end housing 2 and the bearing 9 of rear end cap 8, rotor 6 is installed in the inner chamber of stator core 5 and stator winding 7, and keep certain interval with stator core 5 and stator winding 7, bearing 9 is for limit rotary shaft 1 and the relative position ensureing rotor 6 and stator core 5 and stator winding 7, and ensure rotor 6 can in the inner chamber of stator core 5 and stator winding 7 Rotating with Uniform.Described aerofoil fan 15 is installed in fan housing 14, fan housing 14 is fixed on rear end cap 8 by screw 16, rear end cap 8 is also equiped with flexible coupler 10 and support 12, support 12 is equiped with encoder 13, flexible coupler 10, encoder 13 and aerofoil fan 15 are all installed in fan housing 14, the operation information that encoder 13 is collected by flexible coupler 10 feeds back to outside controller 20 through data and command line 21, corresponding service data is calculated again by controller 20, and send instruction to frequency converter 18, then control rotor 6 by frequency converter 18 to operate, formation feedback vector like this closed-loop control.
Support 3 is provided with main junction box 4, for three-phase electricity wiring 17 connecting stator winding 7 with provide AC380V power supply, fan housing 14 is provided with time terminal box 11, for single-phase electricity wiring 19 connecting axle flow fan 15 with provide AC220V power supply.
Claims (2)
1. a pump variable-frequency motor is primarily of rotating shaft, support, stator core, rotor, stator winding, flexible coupler, encoder and aerofoil fan composition, stator core and stator winding are fixed in support, support two ends are equiped with front end housing and rear end cap respectively, it is characterized in that, described aerofoil fan is installed in fan housing, fan housing is screwed on rear end cap, rear end cap is also equiped with flexible coupler and support, support is equiped with encoder, and flexible coupler, encoder and aerofoil fan are all installed in fan housing.
2. a kind of pump variable-frequency motor according to claim 1, is characterized in that, support is provided with main junction box, and fan housing is provided with time terminal box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410561373.6A CN104852525A (en) | 2014-10-22 | 2014-10-22 | Variable frequency motor used for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410561373.6A CN104852525A (en) | 2014-10-22 | 2014-10-22 | Variable frequency motor used for pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104852525A true CN104852525A (en) | 2015-08-19 |
Family
ID=53851951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410561373.6A Pending CN104852525A (en) | 2014-10-22 | 2014-10-22 | Variable frequency motor used for pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104852525A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112383190A (en) * | 2020-10-29 | 2021-02-19 | 青岛中加特电气股份有限公司 | Frequency conversion all-in-one machine and manufacturing method thereof |
-
2014
- 2014-10-22 CN CN201410561373.6A patent/CN104852525A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112383190A (en) * | 2020-10-29 | 2021-02-19 | 青岛中加特电气股份有限公司 | Frequency conversion all-in-one machine and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150819 |
|
| WD01 | Invention patent application deemed withdrawn after publication |