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CN107134884A - Permanent magnet synchronous motor assembly, compressor with permanent magnet synchronous motor assembly and air conditioner with permanent magnet synchronous motor assembly - Google Patents

Permanent magnet synchronous motor assembly, compressor with permanent magnet synchronous motor assembly and air conditioner with permanent magnet synchronous motor assembly Download PDF

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Publication number
CN107134884A
CN107134884A CN201610116459.7A CN201610116459A CN107134884A CN 107134884 A CN107134884 A CN 107134884A CN 201610116459 A CN201610116459 A CN 201610116459A CN 107134884 A CN107134884 A CN 107134884A
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CN
China
Prior art keywords
chamber
permanent magnet
magnet synchronous
cylinder
cooling fluid
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.)
Pending
Application number
CN201610116459.7A
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Chinese (zh)
Inventor
蒋楠
张治平
钟瑞兴
蒋彩云
刘建飞
陈玉辉
周义
汤明镝
雷连冬
刘增岳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN201610116459.7A priority Critical patent/CN107134884A/en
Publication of CN107134884A publication Critical patent/CN107134884A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K9/00Arrangements for cooling or ventilating
    • H02K9/02Arrangements for cooling or ventilating by ambient air flowing through the machine
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

The invention provides a permanent magnet synchronous motor assembly, and a compressor and an air conditioner with the same. A permanent magnet synchronous motor assembly comprising: a barrel having a receiving cavity; the stator is arranged in the accommodating cavity; the stator is sleeved on the outer peripheral wall of the rotor, an air gap channel communicated with the accommodating cavity is formed between the stator and the outer peripheral wall of the rotor, and a cooling fluid channel for introducing cooling fluid into the air gap channel is formed in the inner cylinder wall of the cylinder; the air return channel is arranged on the wall of the cylinder body; and the at least one cooling fluid auxiliary inlet is arranged on the cylinder wall of the cylinder body and communicated with the air gap channel. The periphery wall that causes the rotor with cooling fluid is in the department of cooling down the rotor, can cool off the middle part of the periphery wall of rotor promptly, and the cooling effect is better, has avoided the rotor long-term operation of motor to cause serious loss because of the permanent magnet demagnetization in high temperature environment.

Description

Permanent magnet synchronous electric thermomechanical components and compressor and air conditioner with it
Technical field
The present invention relates to a kind of permanent magnet synchronous electric thermomechanical components and compressor and air conditioner with it.
Background technology
Permagnetic synchronous motor has the features such as small volume, overall operation efficiency are high, power factor (PF) is high, and pressure is often applied in recent years The driving of contracting machine.Compared with being driven asynchronous starting motor, permagnetic synchronous motor uses the permanent magnet excitation in rotor, can keep away Exempt to cause excitation loss while exciting current produces magnetic field, it also requires taking away in permagnetic synchronous motor using forced heat radiation measure The heat in portion, it is to avoid internal rotor permanent magnet because it is long-term under high-temperature work environment caused by demagnetize phenomenon.It is especially high-power Motor, winding current is big, and whole environment caloric value is even more obvious, and cooling measure must be ensured.
The type of cooling that existing permagnetic synchronous motor is used can be divided into two kinds according to motor type, and open machine is frequently with air-cooled, profit Flowed with fan drive motor surrounding air, so that be motor radiating, but this kind of structure can increase the temperature of whole environment, need Environment is radiated extra increase equipment to external world, and this structure has certain limitation;Enclosed motor has been steamed using freon etc. Hair, non-conductive liquid cooling medium are cooled down, and what existing most of compressor arrangement was used is this kind of type of cooling.
The method commonly used on the enclosed permagnetic synchronous motor type of cooling also has a variety of, can be situated between for the sprinkling cooling of stator two ends winding Matter, or set up helical flow path to cool down winding hull-skin temperature in stator outer surface, but these measures are relatively simple, and it is cold But effect is limited, is only applicable to the motor of middle low power, when power of motor rise to 800KW, 1500KW it is even more big when, by It can increase much in motor length, traditional type of cooling is only capable of cooling two ends of rotor or stator outer surface, and is difficult to be cooled to Rotor middle part, is easily caused internal rotor permanent magnet and causes demagnetization phenomenon under high-temperature work environment because for a long time.
The content of the invention
It is a primary object of the present invention to provide a kind of permanent magnet synchronous electric thermomechanical components and compressor and air conditioner with it, to solve The problem of motor inhomogeneous cooling is even in the prior art.
To achieve these goals, according to an aspect of the invention, there is provided a kind of permanent magnet synchronous electric thermomechanical components, including:Cylinder Body, with accommodating chamber;Stator, is arranged in accommodating chamber;Rotor, stator is set in outer on the periphery wall of rotor and with rotor It is formed with to offer on the air gap channel being connected with accommodating chamber, the inner tube wall of cylinder between perisporium and cooling fluid is introduced to air gap Cooling channels in passage;Return gas channel, is opened on the barrel of cylinder;At least one cooling fluid auxiliary entrance, is opened It is connected on the barrel of cylinder and with air gap channel.
Further, return gas channel is connected by accommodating chamber with air gap channel.
Further, accommodating chamber is separated into first chamber and second chamber by stator, and first chamber is mutually located at air gap with second chamber The two ends of passage, wherein, the import of cooling channels is arranged on the barrel of cylinder, cooling fluid auxiliary entrance and first chamber It is connected, the outlet of cooling channels is connected with first chamber, return gas channel is opened in the cylinder at corresponding to second chamber Barrel on and be connected with second chamber.
Further, cooling channels include:Cooling fluid inlet, is opened on the barrel of cylinder;Helical duct, is opened up Extend on the internal perisporium of cylinder and along the circumferential and axial direction of stator, the arrival end of helical duct is connected with cooling fluid inlet Logical, the port of export of helical duct is connected with air gap channel.
Further, accommodating chamber is separated into first chamber and second chamber by stator, and first chamber is mutually located at air gap with second chamber The two ends of passage, the arrival end of helical duct is disposed in proximity at the tail end of the stator in second chamber.
Further, the port of export of helical duct is connected with first chamber, and cooling fluid auxiliary entrance is connected with first chamber.
Further, the direction of rotation of helical duct is identical or opposite with the coil of the stator magnetic direction produced.
To achieve these goals, according to another aspect of the present invention, a kind of compressor, including permanent magnet synchronous electric are additionally provided Thermomechanical components, permanent magnet synchronous electric thermomechanical components are above-mentioned permanent magnet synchronous electric thermomechanical components.
To achieve these goals, according to a further aspect of the invention, a kind of air conditioner, including permanent magnet synchronous electric are provided again Thermomechanical components, compressor, evaporator and condenser, permanent magnet synchronous electric thermomechanical components are above-mentioned permanent magnet synchronous electric thermomechanical components, cooling stream Body passage is connected with condenser, and return gas channel is connected with the air entry of evaporator or compressor.
Apply the technical scheme of the present invention, stator is set on the periphery wall of rotor and is formed with and holds between the periphery wall of rotor On the air gap channel that chamber of receiving is connected, the barrel of cylinder offer cooling channels cooling fluid being introduced in air gap channel. The periphery wall that cooling fluid is led into rotor is sentenced to cool to rotor, i.e., can be cooled to the middle part of the periphery wall of rotor. At least one cooling fluid auxiliary entrance is offered on the barrel of cylinder, cooling fluid auxiliary entrance is connected with air gap channel.If Cooling fluid auxiliary entrance is put, cooling effect is more preferable, it is to avoid the rotor longtime running of motor is in hot environment because of permanent magnet Demagnetize and cause serious loss.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention Apply example and its illustrate to be used to explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the sectional view of the permanent magnet synchronous electric thermomechanical components according to the present invention.
Wherein, above-mentioned accompanying drawing is marked including the following drawings:
10th, cylinder;60th, cooling fluid auxiliary entrance;12nd, cooling fluid inlet;13rd, helical duct;20th, stator;30、 Rotor;40th, air gap channel;11st, cooling channels;50th, return gas channel.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can be mutually combined. Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in figure 1, the invention provides a kind of permanent magnet synchronous electric thermomechanical components.
Specifically, permanent magnet synchronous electric thermomechanical components include cylinder 10, stator 20, rotor 30, air gap channel 40, return gas channel 50 With cooling fluid auxiliary entrance 60.It is each that permanent magnet synchronous electric thermomechanical components in the present embodiment include cylinder 10, stator 20 and rotor 30 One.Wherein, cylinder 10 has accommodating chamber.Stator 20 is arranged in accommodating chamber, and the suit of stator 20 of motor is fixed on cylinder 10 inside.Stator 20 is sheathed on the periphery wall of rotor 30 and air gap channel 40 is formed between the periphery wall of rotor 30, Air gap channel 40 is connected with accommodating chamber.The rotor 30 of motor is arranged on the inside of stator 20, and support cylinder 10 is in antero posterior axis Hold.Cooling channels 11 are offered on the barrel of cylinder 10, cooling fluid can be introduced to gas by cooling channels 11 In gap passage 40.Return gas channel 50 is opened on the barrel of cylinder 10, and return gas channel 50 is connected with air gap channel 40.Extremely A few cooling fluid auxiliary entrance 60, is opened on the barrel of the cylinder 10 and is connected with the air gap channel 40.
The periphery wall that cooling fluid is led into rotor 30 is sentenced cools to rotor 30, it is to avoid the rotor 30 of motor is long-term Operate in hot environment because permanent magnet demagnetizes and caused by serious loss.This structural change cooling approach of cooling fluid, enters And improve the type of cooling, improve the uniformity of cooling, it is ensured that and improve the reliability of motor operation, be particularly suitable for use in compared with Large scale motor.The present invention can solve the problem that the cooling problem of heavy-duty motor, wherein, it is high-power to be generally referred to as more than 100KW Motor, be particularly suitable for use in 500KW~1500KW motors in the present invention.The high power permanent magnet synchronous motor can be used for centrifugation to press A variety of similar models such as contracting machine, helical-lobe compressor, air blower.Cooling fluid for cooling can be freon or other easily steamings Hair produces decalescence, nonconducting material.
Further, return gas channel 50 is connected by accommodating chamber with air gap channel 40.Motor have the front end that is oppositely arranged and Tail end, opens up a motor gas returning port i.e. return gas channel 50 at the tail end of motor, can make under the cooling fluid entrance of the complete motor of cooling One container.
As shown in figure 1, accommodating chamber is separated into first chamber and second chamber by stator 20, first chamber is mutually located at second chamber The two ends of air gap channel 40, first chamber and second chamber are connected by air gap channel 40.Wherein, cooling channels 11 Import be arranged on the barrel of cylinder 10.The outlet of cooling channels 11 is connected with first chamber, and return gas channel 50 is opened up It is connected on the barrel of cylinder 10 at corresponding to second chamber and with second chamber.Preferably, cooling fluid auxiliary entrance 60 For one, cooling fluid auxiliary entrance 60 is connected with first chamber.
Cooling channels 11 include cooling fluid inlet 12 and helical duct 13.Specifically, cooling fluid inlet 12 is opened in On the barrel of cylinder 10.Helical duct 13 is opened on the internal perisporium of cylinder 10, circumference of the helical duct 13 along stator 20 and Axial direction extends, and the arrival end of helical duct 13 is connected with cooling fluid inlet 12, the port of export and gas of helical duct 13 Gap passage 40 is connected.Further, the interchannel of helical duct 13 is uniform away from the axial direction along stator 20.
Helical duct 13 is offered on the inwall of cylinder 10, helical duct 13 can be helicla flute, the direction of rotation of helical duct 13 Can with it is left-handed can be with dextrorotation.The direction of rotation of helical duct 13 is identical or opposite with the coil of stator 20 magnetic direction produced. The magnetic direction that helical duct 13 on the inwall of motor cylinder 10 is preferably produced with stator coil is on the contrary, such cooling effect Can be more preferable.
The interchannel of helical duct 13 away from can be determined according to power of motor and caloric value size, spacing with it is uniform be optimal.
Due to having helical duct 13, therefore the preferred casting of cylinder 10 on the internal perisporium of the cylinder 10 of motor, it is easy to processing and manufacturing. The ante-chamber that cooling fluid after helical duct 13 out reaches motor is first chamber, and the port of export of helical duct 13 can cloth Put in any one position of the surrounding of the barrel of cylinder 10, the front end cavity that the port of export is arranged in motor i.e. the first chamber preferably On the top of room or the side wall of behind, it can so make the gas-liquid mixed state cooling fluid not yet evaporated because Action of Gravity Field is first Cavity bottom is flowed to, then gaseous state cooling fluid re-evaporation, the heat that phase transformation absorbs can make first chamber sufficiently cool.
As shown in figure 1, accommodating chamber is separated into first chamber and second chamber by stator 20, first chamber is mutually located at second chamber The two ends of air gap channel 40, first chamber and second chamber are connected by air gap channel 40, and the arrival end of helical duct 13 is set At the tail end for being placed in stator 20, the tail end of stator 20 is set close to second chamber, the port of export and first chamber of helical duct 13 It is connected.Further, the head end being oppositely arranged with tail end of stator 20 is in first chamber, and tail end shield portions spiral leads to The port of export in road 13.
A cooling import i.e. cooling fluid is opened in the original position of the helical duct 13 of the inside of the cylinder 10 of the tail end of motor to enter Mouth 12, cools down the front end outflow from motor behind the surface of stator 20, the set location of cooling fluid inlet 12 can be logical according to spiral The original position in road 13 is opened in any one circumferential position on the barrel of cylinder 10.But it is convenient in view of unit stringing, one As be opened on the side wall at the bottom of cylinder 10 or the back side.
As shown in figure 1, cooling fluid auxiliary entrance 60 is opened on the barrel of the cylinder 10 at first chamber and and first chamber It is connected.It is cooling fluid auxiliary entrance 60 to cool down import all the way in the front end increase of motor, is directly entered motor cavity front end i.e. straight Tap into first chamber, increase the amount of cooling fluid, force enough cooling fluids by the rotor 30 and stator 20 of motor it Between air gap channel 40, the outer surface of rotor 30 of motor and the inner surface of stator 20 are cooled down with this.Cooling fluid auxiliary entrance Any one position that 60 position may be arranged on the perisporium of cylinder 10.Due to entering gas between rotor 30 and stator 20 The cooling fluid of gap passage 40 is by once cooling down, to avoid cooling insufficient, increases a pipeline sprinkling in the front end of motor Cooling fluid is that cooling fluid is sprayed in increase cooling fluid auxiliary entrance 60, and cooling effect is strengthened with this.
Cooling fluid enters from the cooling fluid inlet 12 of the tail end of motor, is arrived in the outer surface of stator 20 by helical duct 13 In being first chamber up to the front end of motor, the outer surface of stator 20 can be cooled down during being somebody's turn to do.Simultaneously in addition all the way cooling fluid from The front end cooling import of motor enters motor front end cavity.By between stator 20 and rotor 30 after the mixing of two-way cooling fluid Air gap channel 40 reach motor tail end be reach second chamber in, during can cool down motor rotor 30 outer surface and The inner surface of stator 20, passes through the tail of the cooling fluid of the air gap channel 40 between stator 20 and rotor 30 eventually through motor The return gas channel 50 at end flows out.
Wherein, the cooling fluid inlet 12 of the tail end of motor and the size of cooling fluid auxiliary entrance 60 are determined according to power of motor, Power of motor is bigger, and cooling import is bigger, otherwise smaller.
Further, the axis of return gas channel 50 and the diameter parallel of cooling fluid inlet 12 are set.It is easy to manufacture, it is easy to real It is existing.
Present invention also offers a kind of compressor, compressor includes permanent magnet synchronous electric thermomechanical components, and permanent magnet synchronous electric thermomechanical components are above-mentioned Permanent magnet synchronous electric thermomechanical components.It is the dynamic of whole compressor because permagnetic synchronous motor is the part of whole compressor core the most Power source, rotor is even more the core in core, once the permanent magnet demagnetization in rotor, will result directly in compressor can not be normal Operating, the loss caused is destructive, and can will completely avoid the generation of this thing by the present invention, it is ensured that whole compression It is safe and reliable that machine is run.The present invention can solve the problem that the problem of large-size motor inhomogeneous cooling is even, it is ensured that motor works well.
Present invention also offers a kind of compressor, compressor includes permanent magnet synchronous electric thermomechanical components, compressor, evaporator and condenser, Permanent magnet synchronous electric thermomechanical components are above-mentioned permanent magnet synchronous electric thermomechanical components, and cooling channels 11 are connected with condenser, return gas channel 50 are connected with the air entry of evaporator or compressor.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect:
The periphery wall that cooling fluid is led into rotor is sentenced to cool to rotor, i.e., can be cooled to the centre of the periphery wall of rotor At least one cooling fluid auxiliary entrance is offered on position, the barrel of cylinder, cooling fluid auxiliary entrance is connected with air gap channel It is logical.There is provided cooling fluid auxiliary entrance, cooling effect is more preferable, it is to avoid the rotor longtime running of motor in hot environment because Permanent magnet demagnetizes and causes serious loss.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for those skilled in the art For, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made, etc. With replacement, improvement etc., it should be included in the scope of the protection.

Claims (9)

1. a kind of permanent magnet synchronous electric thermomechanical components, it is characterised in that including:
Cylinder (10), with accommodating chamber;
Stator (20), is arranged in the accommodating chamber;
Rotor (30), the stator (20) be set on the periphery wall of the rotor (30) and with the rotor (30) Periphery wall between be formed with the air gap channel (40) being connected with the accommodating chamber, the inner tube wall of the cylinder (10) Offer the cooling channels (11) cooling fluid being introduced in the air gap channel (40);
On return gas channel (50), the barrel for being opened in the cylinder (10);
At least one cooling fluid auxiliary entrance (60), is opened on the barrel of the cylinder (10) and logical with the air gap Road (40) is connected.
2. permanent magnet synchronous electric thermomechanical components according to claim 1, it is characterised in that the return gas channel (50) is by described Accommodating chamber is connected with the air gap channel (40).
3. permanent magnet synchronous electric thermomechanical components according to claim 2, it is characterised in that the stator (20) is by the accommodating chamber First chamber and second chamber are separated into, the first chamber is mutually located at the air gap channel (40) with the second chamber Two ends, wherein, the import of the cooling channels (11) is arranged on the barrel of the cylinder (10), the cooling Fluid auxiliary entrance (60) is connected with the first chamber, the outlet and described first of the cooling channels (11) Chamber is connected, and the return gas channel (50) is opened in the cylinder of the cylinder (10) at corresponding to the second chamber It is connected on wall and with the second chamber.
4. permanent magnet synchronous electric thermomechanical components according to claim 1, it is characterised in that the cooling channels (11) include:
On cooling fluid inlet (12), the barrel for being opened in the cylinder (10);
Helical duct (13), is opened on the internal perisporium of the cylinder (10) and along the circumference and axle of the stator (20) Extend to direction, the arrival end of the helical duct (13) is connected with the cooling fluid inlet (12), the spiral shell The port of export of rotation passage (13) is connected with the air gap channel (40).
5. permanent magnet synchronous electric thermomechanical components according to claim 4, it is characterised in that the stator (20) is by the accommodating chamber First chamber and second chamber are separated into, the first chamber is mutually located at the air gap channel (40) with the second chamber Two ends, the arrival end of the helical duct (13) is disposed in proximity to the tail of the stator (20) of the second chamber At end.
6. permanent magnet synchronous electric thermomechanical components according to claim 5, it is characterised in that the port of export of the helical duct (13) It is connected with the first chamber, the cooling fluid auxiliary entrance (60) is connected with the first chamber.
7. permanent magnet synchronous electric thermomechanical components according to claim 4, it is characterised in that the rotation side of the helical duct (13) To identical or opposite with the magnetic direction of the coil of the stator (20) generation.
8. a kind of compressor, it is characterised in that including permanent magnet synchronous electric thermomechanical components, the permanent magnet synchronous electric thermomechanical components are claim 1 To the permanent magnet synchronous electric thermomechanical components any one of 7.
9. a kind of air conditioner, it is characterised in that including permanent magnet synchronous electric thermomechanical components, compressor, evaporator and condenser, it is described forever Magnetic-synchro electric machine assembly is the permanent magnet synchronous electric thermomechanical components any one of claim 1 to 7, the cooling fluid Passage (11) is connected with the condenser, the return gas channel (50) and the air-breathing of the evaporator or the compressor Mouth is connected.
CN201610116459.7A 2016-02-29 2016-02-29 Permanent magnet synchronous motor assembly, compressor with permanent magnet synchronous motor assembly and air conditioner with permanent magnet synchronous motor assembly Pending CN107134884A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610116459.7A CN107134884A (en) 2016-02-29 2016-02-29 Permanent magnet synchronous motor assembly, compressor with permanent magnet synchronous motor assembly and air conditioner with permanent magnet synchronous motor assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610116459.7A CN107134884A (en) 2016-02-29 2016-02-29 Permanent magnet synchronous motor assembly, compressor with permanent magnet synchronous motor assembly and air conditioner with permanent magnet synchronous motor assembly

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Publication Number Publication Date
CN107134884A true CN107134884A (en) 2017-09-05

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111371251A (en) * 2018-12-25 2020-07-03 珠海格力电器股份有限公司 Motor with spiral cooling type rotor and compressor
CN112491206A (en) * 2020-12-14 2021-03-12 中车株洲电机有限公司 Motor refrigerant cooling structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202210737U (en) * 2011-09-21 2012-05-02 珠海格力电器股份有限公司 Air conditioner and cooling structure of motor of refrigerating machine thereof
CN103312087A (en) * 2012-03-16 2013-09-18 珠海格力电器股份有限公司 Motor and air conditioner comprising same
CN205407494U (en) * 2016-02-29 2016-07-27 珠海格力电器股份有限公司 Permanent magnet synchronous motor assembly, compressor with permanent magnet synchronous motor assembly and air conditioner with permanent magnet synchronous motor assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202210737U (en) * 2011-09-21 2012-05-02 珠海格力电器股份有限公司 Air conditioner and cooling structure of motor of refrigerating machine thereof
CN103312087A (en) * 2012-03-16 2013-09-18 珠海格力电器股份有限公司 Motor and air conditioner comprising same
CN205407494U (en) * 2016-02-29 2016-07-27 珠海格力电器股份有限公司 Permanent magnet synchronous motor assembly, compressor with permanent magnet synchronous motor assembly and air conditioner with permanent magnet synchronous motor assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111371251A (en) * 2018-12-25 2020-07-03 珠海格力电器股份有限公司 Motor with spiral cooling type rotor and compressor
CN112491206A (en) * 2020-12-14 2021-03-12 中车株洲电机有限公司 Motor refrigerant cooling structure

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Inventor after: Tan Jianming

Inventor after: Zhang Zhiping

Inventor after: Liu Hua

Inventor after: Jiang Nan

Inventor before: Jiang Nan

Inventor before: Liu Zengyue

Inventor before: Zhang Zhiping

Inventor before: Zhong Ruixing

Inventor before: Jiang Caiyun

Inventor before: Liu Jianfei

Inventor before: Chen Yuhui

Inventor before: Zhou Yi

Inventor before: Tang Mingdi

Inventor before: Lei Liandong

RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20170905