CN204089493U - Air compressor high speed frequency-conversion and speed-regulation motor - Google Patents

Air compressor high speed frequency-conversion and speed-regulation motor Download PDF

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Publication number
CN204089493U
CN204089493U CN201420467583.4U CN201420467583U CN204089493U CN 204089493 U CN204089493 U CN 204089493U CN 201420467583 U CN201420467583 U CN 201420467583U CN 204089493 U CN204089493 U CN 204089493U
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China
Prior art keywords
support
rear end
bearing
stator core
air compressor
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Active
Application number
CN201420467583.4U
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Chinese (zh)
Inventor
叶锦武
叶叶
孙长华
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Zhejiang Jinlong Electrical Machinery Stock Co Ltd
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Zhejiang Jinlong Electrical Machinery Stock Co Ltd
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Priority to CN201420467583.4U priority Critical patent/CN204089493U/en
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Abstract

Air compressor high speed frequency-conversion and speed-regulation motor, comprise support, at support two ends, front end housing and rear end cap are installed, in front end housing, fore bearing is installed, in rear end cap, rear bearing is installed, before, in support between rear end cap, rotating shaft is set, rotating shaft installs rotor core outward, in support, stator core is installed, rotor core and stator core match, stator core arranges stator winding, terminal box installed by support, the wiring of terminal box is connected with stator winding, it is characterized in that: the terminal box on described support connects frequency converter, frequency converter connects power supply, spacing H between described stator core and rotor core is 0.9mm, at rotating shaft rear end installation shaft flow fan, in support rear end, fan housing is installed, fan housing covers on outside axial flow blower.

Description

Air compressor high speed frequency-conversion and speed-regulation motor
Technical field
The utility model relates to motor, particularly relates to air compressor high speed frequency-conversion and speed-regulation motor.
Background technology
The motor of existing air compressor directly connects power supply through terminal box usually, its power exported is 22KW, the power exported is low, relative energy consumption is bigger than normal, and stator core in motor and generally adopt comparatively small air gap (conventional is 0.8mm) between rotor core, to reduce no-load current and to improve power factor, air gap is little, and harmonic leakage reactance can be caused to increase, improve motor stray loss and temperature rise, the efficiency of motor reduces.
Summary of the invention
The purpose of this utility model is the shortcoming existed to overcome prior art, there is provided one to make air compressor system energy-saving run, output power of motor is large, saving energy, reduce motor stray loss and temperature rise, improve the air compressor high speed frequency-conversion and speed-regulation motor of the efficiency of motor.
The technical scheme of the utility model air compressor high speed frequency-conversion and speed-regulation motor is: comprise support, at support two ends, front end housing and rear end cap are installed, in front end housing, fore bearing is installed, in rear end cap, rear bearing is installed, before, in support between rear end cap, rotating shaft is set, rotating shaft installs rotor core outward, in support, stator core is installed, rotor core and stator core match, stator core arranges stator winding, terminal box installed by support, the wiring of terminal box is connected with stator winding, it is characterized in that: the terminal box on described support connects frequency converter, frequency converter connects power supply, spacing H between described stator core and rotor core is 0.9mm, at rotating shaft rear end installation shaft flow fan, in support rear end, fan housing is installed, fan housing covers on outside axial flow blower.
The utility model discloses a kind of air compressor high speed frequency-conversion and speed-regulation motor, the motor of this air compressor connects frequency converter through terminal box, and (concrete structure of frequency converter is prior art, can purchase from the market), power supply is connected again by frequency converter, motor passes through inverter supply, make motor stepless speed regulation in the 1200---6600r/min range of speeds, realize air compressor system energy-saving run, and make output power of motor larger, and the spacing H between stator core and rotor core is increased to 0.9mm, can effectively reduce motor stray loss, increase motor interior to ventilate, reduce motor working temperature, improve the efficiency of motor, and at the rear end installation shaft flow fan of rotating shaft, while motor rotary shaft runs, drive axial flow blower to rotate, axial flow blower rotates the wind produced and cools motor, reduce motor working temperature.
The utility model air compressor high speed frequency-conversion and speed-regulation motor, described stator core adopts thickness to be 0.35mm silicon steel sheet.Be reduced in loss and the spurious high-frequency loss of stator core and rotor core under high-frequency state.Described fore bearing is large play group SKF bearing, and rear bearing is SKF insulation bearing.Fore bearing adopts large play group SKF bearing, reduce bearing temperature when motor runs up, rear bearing adopts SKF insulation bearing, and the shaft current that the high order harmonic component avoiding variable frequency power supply to produce produces in adjustable frequency motor, on the impact of bearing life, ensures useful life.Described stator winding installs temperature measuring equipment.The working temperature of stator winding can be detected at any time, exceed limiting temperature automatic alarm, thus extend the useful life of motor.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model air compressor high speed frequency-conversion and speed-regulation motor.
Embodiment
The utility model relates to a kind of air compressor high speed frequency-conversion and speed-regulation motor, as shown in Figure 1, comprise support 1, at support two ends, front end housing 2 and rear end cap 3 are installed, fore bearing 4 is installed in front end housing, rear bearing 5 is installed in rear end cap, before, rotating shaft 6 is set in the support between rear end cap, rotor core 7 is installed in rotating shaft outward, in support, stator core 8 is installed, rotor core and stator core match, stator core is arranged stator winding 9, support 1 is installed terminal box 10, the wiring of terminal box is connected with stator winding, it is characterized in that: the terminal box 10 on described support 1 connects frequency converter 20, frequency converter connects power supply, spacing H between described stator core 8 and rotor core 7 is 0.9mm, at rotating shaft 6 rear end installation shaft flow fan 11, in support 1 rear end, fan housing 12 is installed, fan housing covers on outside axial flow blower.The concrete structure that the motor of this air compressor connects frequency converter 20(frequency converter through terminal box 10 is prior art, can purchase from the market), power supply is connected again by frequency converter 20, motor passes through inverter supply, make motor stepless speed regulation in the 1200---6600r/min range of speeds, realize air compressor system energy-saving run, and make output power of motor larger, and the spacing H between stator core 8 and rotor core 7 is increased to 0.9mm, can effectively reduce motor stray loss, increase motor interior to ventilate, reduce motor working temperature, improve the efficiency of motor, and at the rear end installation shaft flow fan 11 of rotating shaft 6, while motor rotary shaft 6 runs, drive axial flow blower 11 to rotate, axial flow blower rotates the wind produced and cools motor, reduce motor working temperature.Described stator core 8 adopts thickness to be 0.35mm silicon steel sheet.Be reduced in loss and the spurious high-frequency loss of stator core 8 and rotor core 7 under high-frequency state.Described fore bearing 4 is large play group SKF bearing, and rear bearing 5 is SKF insulation bearing.Fore bearing 4 adopts large play group SKF bearing, reduce bearing temperature when motor runs up, rear bearing 5 adopts SKF insulation bearing, and the shaft current that the high order harmonic component avoiding variable frequency power supply to produce produces in adjustable frequency motor, on the impact of bearing life, ensures useful life.Described stator winding 9 installs temperature measuring equipment 13.The working temperature of stator winding 9 can be detected at any time, exceed limiting temperature automatic alarm, thus extend the useful life of motor.

Claims (4)

1. air compressor high speed frequency-conversion and speed-regulation motor, comprise support (1), at support two ends, front end housing (2) and rear end cap (3) are installed, fore bearing (4) is installed in front end housing, rear bearing (5) is installed in rear end cap, before, rotating shaft (6) is set in the support between rear end cap, rotor core (7) is installed in rotating shaft outward, in support, stator core (8) is installed, rotor core and stator core match, stator core is arranged stator winding (9), support (1) is installed terminal box (10), the wiring of terminal box is connected with stator winding, it is characterized in that: the terminal box (10) on described support (1) connects frequency converter (20), frequency converter connects power supply, spacing H between described stator core (8) and rotor core (7) is 0.9mm, in rotating shaft (6) rear end installation shaft flow fan (11), in support (1) rear end, fan housing (12) is installed, fan housing covers on outside axial flow blower.
2. air compressor high speed frequency-conversion and speed-regulation motor as claimed in claim 1, is characterized in that: described stator core (8) adopts thickness to be 0.35mm silicon steel sheet.
3. air compressor high speed frequency-conversion and speed-regulation motor as claimed in claim 1, is characterized in that: described fore bearing (4) for large play group SKF bearing, rear bearing (5) be SKF insulation bearing.
4. air compressor high speed frequency-conversion and speed-regulation motor as claimed in claim 1, is characterized in that: described stator winding (9) installs temperature measuring equipment (13).
CN201420467583.4U 2014-08-19 2014-08-19 Air compressor high speed frequency-conversion and speed-regulation motor Active CN204089493U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420467583.4U CN204089493U (en) 2014-08-19 2014-08-19 Air compressor high speed frequency-conversion and speed-regulation motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420467583.4U CN204089493U (en) 2014-08-19 2014-08-19 Air compressor high speed frequency-conversion and speed-regulation motor

Publications (1)

Publication Number Publication Date
CN204089493U true CN204089493U (en) 2015-01-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420467583.4U Active CN204089493U (en) 2014-08-19 2014-08-19 Air compressor high speed frequency-conversion and speed-regulation motor

Country Status (1)

Country Link
CN (1) CN204089493U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104810972A (en) * 2015-02-15 2015-07-29 山东力久特种电机股份有限公司 Special high-efficiency motor for KYGJ air compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104810972A (en) * 2015-02-15 2015-07-29 山东力久特种电机股份有限公司 Special high-efficiency motor for KYGJ air compressor

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: High speed variable frequency motor for air compressor

Effective date of registration: 20210324

Granted publication date: 20150107

Pledgee: Taizhou Luqiao sub branch of China Construction Bank Co.,Ltd.

Pledgor: ZHEJIANG JINLONG ELECTRICAL MACHINERY STOCK Co.,Ltd.

Registration number: Y2021330000224

PE01 Entry into force of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20220222

Granted publication date: 20150107

Pledgee: Taizhou Luqiao sub branch of China Construction Bank Co.,Ltd.

Pledgor: ZHEJIANG JINLONG ELECTRICAL MACHINERY STOCK Co.,Ltd.

Registration number: Y2021330000224

PC01 Cancellation of the registration of the contract for pledge of patent right