CN201479062U - Magnetic levitation refrigeration compressor motor - Google Patents
Magnetic levitation refrigeration compressor motor Download PDFInfo
- Publication number
- CN201479062U CN201479062U CN2009203062644U CN200920306264U CN201479062U CN 201479062 U CN201479062 U CN 201479062U CN 2009203062644 U CN2009203062644 U CN 2009203062644U CN 200920306264 U CN200920306264 U CN 200920306264U CN 201479062 U CN201479062 U CN 201479062U
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- CN
- China
- Prior art keywords
- compressor motor
- refrigeration compressor
- iron core
- magnetic suspension
- rotor
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- 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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Abstract
The utility model relates to a refrigeration compressor motor, in particular to a compressor motor used in commercial refrigeration equipment or household refrigeration equipment. The utility model aims at providing a magnetic levitation refrigeration compressor motor which uses a magnetic levitation support for supporting a rotor and has the advantages of high speed, high efficiency and energy conservation. The magnetic levitation refrigeration compressor motor comprises a stator component and a rotor component, as well as the magnetic levitation support, wherein the support comprises an annular housing, an induction iron core is evenly distributed on the periphery of the housing, the induction iron core is cylindrical, a central axis line thereof passes through the center of a circular ring of the housing, and a winding for conducting current is arranged on the induction iron core.
Description
Technical field
The utility model relates to a kind of refrigeration compressor motor, particularly is used for commercial refrigeration plant or family and uses the compressor in refrigeration equipment motor.
Background technology
At present, along with being extensive use of of power consumption equipment, the consumption of electric energy has been reached a surprising quantity.Particularly China is not under infrastructure device is very perfect situation, and country takes much count of energy-saving and cost-reducing, and alternating current machine is because easily manufactured, and the security performance height has obtained utilization widely.At refrigeration industry, common single phase alternating current (A.C.) refrigeration compressor motor has accounted for main flow.But the efficient of common single phase alternating current (A.C.) refrigeration compressor motor is low, and power capacity is low, and the power capacity of the three phase alternating current motor that same material is made is three times of load motor.And the single phase alternating current (A.C.) refrigeration compressor motor has been because frequent startup has caused current of electric excessive, and noise is bigger than normal, and electrical network is impacted big and brought inconvenience for people's life, and also there is very big influence in life-span of equipment.
Concentrate on the mechanical friction part in motor main energy consumption in service, the rotor of the one-way communication refrigerant compression motor that refrigeration industry is common is all by bearings.The bearing classification has rolls or sliding bearing, but because rotor rotation process all contacts with bearing physics, high-precision again bearing also can't avoid the motor rotation process to produce friction, noise and vibration, has caused consumption to electric power, and the bearing that uses also will regularly replace, and has life cycle.On the other hand, the motor of common use bearing all will be used lubricating oil, and in motor high speed operation process, lubricating oil can be discharged in the environment unavoidably, this down phenomenon limits the specific demand in the high-cleanness, high space, used of the type motor.
The utility model content
The purpose of this utility model be to provide a kind of by magnetic suspension stent support rotor, at a high speed, efficient and energy-conservation magnetic suspension refrigeration compressor motor.
Technical solutions of the utility model are as follows:
A kind of magnetic suspension refrigeration compressor motor, have stator module and rotor assembly, also has the magnetic suspension support, this support comprises the shell of annular, at the circumferentially even distribution inductive iron core of shell, above-mentioned inductive iron core is cylindrical, and its central axis all passes through the circle ring center of shell, and inductive iron core is provided with and is used for the winding of conducting electric current.
The close shell circle ring center side of above-mentioned inductive iron core is provided with position transducer.
The number of above-mentioned inductive iron core is the even number between 4 to 12.
The said stator assembly has stator core, is wrapped in the line bag on the stator core and is located at the interior thermoinduction components and parts of line bag.
Said stator assembly two ends are provided with and are used for the second place transducer of detection rotor axial location.
Above-mentioned rotor assembly has the permanent magnet of stainless steel rotating shaft and rotor mid portion, and above-mentioned permanent magnet pastes the rotating shaft interlude by the permanent magnet paster and forms.
The utlity model has following advantage:
At first, the rotor of the utility model motor is by the magnetic suspension stent support, between rotor and the support since magneticaction each other not physics do not contact, so the rotation of rotor without any mechanical friction, thereby reduced energy consumption, improved motor properties; Secondly, the interlude of the utility model rotor is a permanent magnet, the two ends of stator module are provided with second place transducer, the characteristic of utilizing magnetic circuit always to pass through along the path of magnetic circuit area maximum, rotor will remain on the home position rotation, and when axial endplay took place, second place transducer can send signal, regulate the electric current of input stator module, and then make its magnetic field have enough pulling force to make rotor keep in the center; At last, stator module of the present utility model includes the thermoinduction components and parts, is used for monitoring the working temperature of motor, prevents the motor overheating damage.
Description of drawings
Fig. 1 the utility model magnetic suspension refrigeration compressor motor structural representation.
Fig. 2 is the structural representation of magnetic suspension support among Fig. 1.
Embodiment
See Fig. 1, the utility model magnetic suspension refrigeration compressor motor has stator module 2, rotor assembly 3 and magnetic suspension support 1, and stator module is provided with external input lead assembly 4.Said stator assembly 2 comprises stator core 21 and the line bag 22 that is wrapped on the stator core, by to line bag input current, can make stator core produce magnetic field, thereby impels the rotor rotation.Also be provided with the thermoinduction components and parts in the above-mentioned line bag 22; the operating temperature of this thermoinduction components and parts monitoring motor; play superheat protecting function; in case it is too high to monitor the operating temperature of motor; reach predefined temperature value; the thermoinduction components and parts will feed back signal to control circuit, cut off the electric current of input stator module, and the rotor of motor is stopped the rotation.
Above-mentioned rotor assembly 3 comprises stainless steel rotating shaft 31, and the lobed ladder of stainless steel rotating shaft interlude posts the permanent magnet paster on the ladder, forms the permanent magnet 32 of rotor.Permanent magnet 32 is positioned at the mid portion of rotor, also is arranged in the middle of stator module 2 simultaneously and surrounds.Line bag 22 input currents when stator module, permanent magnet 32 at the action of a magnetic field lower rotor part will rotate under magneticaction, and because the characteristic that magnetic circuit always passes through along the path of magnetic circuit area maximum, permanent magnet always tends to remain on the center of stator module, when permanent magnet 32 is a rotor when departing from this center, the action of a magnetic field between rotor and the stator module will produce the magnetic force that rotor is retracted the home position.
See Fig. 2, above-mentioned magnetic suspension support 1 has the shell 11 of annular, shell at annular circumferentially is evenly distributed with inductive iron core 12, this inductive iron core is cylindrical, its central axis is through the circle ring center of shell, be radial arrangement, each inductive iron core is provided with and is used for the winding 13 of conducting electric current, and is provided with position transducer 14 at the close shell circle ring center end of each inductive iron core.After the magnetic suspension support feeds electric current, inductive iron core produces magnetic force under the function of current, and the polarity of the close shell circle ring center end of each inductive iron core is identical, can produce magneticaction to the support end of rotor, so rotor can be suspended in the air and not and contacts with magnetic suspension support generation physics.Position transducer 14 can detect the range information between the rotor shaft surface of inductive iron core and opposite side, and give control circuit with this signal feedback, control circuit is the feedback information of each inductive iron core upper position sensor relatively, compare, when if certain inductive iron core and rotor shaft close together take place, the feeding size of current of winding on this inductive iron core will be adjusted, change the magnetic force size of this inductive iron core countershaft, and then the relative position of adjustment rotating shaft in the magnetic suspension support, keep rotating shaft to be in the center, the phenomenon of unlikely generation and the grazing of magnetic suspension support as far as possible.The magnetic suspension support has 12 inductive iron cores in the present embodiment, can produce enough magnetic buoyancy to rotor shaft, and owing to there are 12 corresponding position transducers, also reaches very high accuracy for the position adjustment of rotor shaft.
In order to control the axial endplay of the utility model rotor, stator module two ends at motor are provided with second place transducer, the axial displacement of this sensor monitors rotor shaft, in case axial displacement surpasses set point, control circuit will be adjusted the input current of stator module, strengthen the effect of magnetic field to rotor, magnetic circuit always along the path of magnetic circuit area maximum by the characteristic effect under, the rotor homing.
The power control circuit of the utility model motor adopts the chip for driving of BLDC special use, its output pulse step makes stabilizing output level, accurately by the control of built-in chip type phase-locked loop circuit, and has an ability of judging the electric position of rotor, remove conventional similar BLDC product needed hall device from and located rotor electrical degree problem, thereby made product structurally smaller and more exquisite.In order to satisfy the specific (special) requirements of low voltage starting (3V), to the number of turn of stator, the table magnetic intensity of rotor, the magnetic energy product parameter has been done a large amount of emulation, shows magnetic intensity the most at last and fixes about 1500Gs, and the parameter of the number of turn and phase resistance has also obtained optimization.When make starting at last, the degenerative value of voltage has satisfied the requirement of control chip to feedback signal at a good threshold values, has improved performance index, and the folded height of whole motor has only 5mm, thereby has realized incorporate designing requirement.
The utility model magnetic suspension refrigeration compressor motor has high rotating speed and low noise, and its theoretical velocity can be up to more than 50000 rev/mins, and rotating speed can be adjusted between 1000-50000; Because rotor assembly suspends, and makes that the mechanical loss of whole motor is almost nil, the various factor major parts of noise that cause are stopped, and make that the noise control of whole motor is also very good.
Claims (6)
1. magnetic suspension refrigeration compressor motor, have stator module (2) and rotor assembly (3), it is characterized in that: also have magnetic suspension support (1), this support comprises the shell (11) of annular, at the circumferentially even distribution inductive iron core (12) of shell, above-mentioned inductive iron core is cylindrical, and its central axis all passes through the circle ring center of shell, and inductive iron core is provided with and is used for the winding (13) of conducting electric current.
2. magnetic suspension refrigeration compressor motor according to claim 1 is characterized in that: the close shell circle ring center side of above-mentioned inductive iron core (12) is provided with position transducer (14).
3. magnetic suspension refrigeration compressor motor according to claim 1 is characterized in that: the number of above-mentioned inductive iron core is the even number between 4 to 12.
4. magnetic suspension refrigeration compressor motor according to claim 1 is characterized in that: said stator assembly (2) has stator core (21), is wrapped in the line bag (22) on the stator core and is located at the interior thermoinduction components and parts of line bag.
5. magnetic suspension refrigeration compressor motor according to claim 4 is characterized in that: said stator assembly two ends are provided with and are used for the second place transducer of detection rotor axial location.
6. magnetic suspension refrigeration compressor motor according to claim 1, it is characterized in that: above-mentioned rotor assembly (3) has the permanent magnet (32) of stainless steel rotating shaft (31) and rotor mid portion, and above-mentioned permanent magnet (32) pastes the rotating shaft interlude by the permanent magnet paster and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203062644U CN201479062U (en) | 2009-07-15 | 2009-07-15 | Magnetic levitation refrigeration compressor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203062644U CN201479062U (en) | 2009-07-15 | 2009-07-15 | Magnetic levitation refrigeration compressor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201479062U true CN201479062U (en) | 2010-05-19 |
Family
ID=42415316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203062644U Expired - Fee Related CN201479062U (en) | 2009-07-15 | 2009-07-15 | Magnetic levitation refrigeration compressor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201479062U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334901A (en) * | 2013-06-27 | 2013-10-02 | 广州万宝集团压缩机有限公司 | Magnetic suspension support of refrigeration compressor |
| CN107465364A (en) * | 2017-08-22 | 2017-12-12 | 刘敬兰 | A kind of magnetic levitation system |
| CN110886706A (en) * | 2019-10-22 | 2020-03-17 | 沈阳微控新能源技术有限公司 | Vehicle-mounted fuel cell gas compressor based on magnetic suspension bearing |
-
2009
- 2009-07-15 CN CN2009203062644U patent/CN201479062U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334901A (en) * | 2013-06-27 | 2013-10-02 | 广州万宝集团压缩机有限公司 | Magnetic suspension support of refrigeration compressor |
| CN103334901B (en) * | 2013-06-27 | 2015-10-07 | 广州万宝集团压缩机有限公司 | A kind of magnetic suspension of refrigeration compressor supports |
| CN107465364A (en) * | 2017-08-22 | 2017-12-12 | 刘敬兰 | A kind of magnetic levitation system |
| CN110886706A (en) * | 2019-10-22 | 2020-03-17 | 沈阳微控新能源技术有限公司 | Vehicle-mounted fuel cell gas compressor based on magnetic suspension bearing |
| CN110886706B (en) * | 2019-10-22 | 2021-03-19 | 沈阳微控新能源技术有限公司 | Vehicle-mounted fuel cell gas compressor based on magnetic suspension bearing |
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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: 20100519 Termination date: 20140715 |
|
| EXPY | Termination of patent right or utility model |