CN208738934U - motor, compressor and air conditioner - Google Patents
motor, compressor and air conditioner Download PDFInfo
- Publication number
- CN208738934U CN208738934U CN201821685452.8U CN201821685452U CN208738934U CN 208738934 U CN208738934 U CN 208738934U CN 201821685452 U CN201821685452 U CN 201821685452U CN 208738934 U CN208738934 U CN 208738934U
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- motor
- stator
- refrigerant
- helicla flute
- refrigerant channel
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- 239000003507 refrigerant Substances 0.000 claims abstract description 111
- 238000004378 air conditioning Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 abstract description 34
- 239000007788 liquid Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 230000001360 synchronised effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000002826 coolant Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- Motor Or Generator Cooling System (AREA)
Abstract
The utility model discloses a motor, compressor and air conditioner relates to the motor field for optimize the cooling structure of current motor. The motor includes a housing, a rotor, and a stator. The shell comprises an accommodating cavity; the rotor is positioned in the accommodating cavity; the stator is positioned in the accommodating cavity and positioned on the periphery of the rotor; wherein, the inside of stator is equipped with the refrigerant runner. Above-mentioned technical scheme is equipped with the refrigerant runner in the inside of stator, has realized the cooling to the stator is inside. According to the technical scheme, the cooling mode of the motor is improved and the cooling uniformity is improved by changing the flowing path of the refrigerant, so that the running reliability of the motor is improved, the motor is particularly suitable for motors with large power and large size, and the temperature of each part of the stator is ensured to be uniform.
Description
Technical field
The utility model relates to motor fields, and in particular to a kind of motor, compressor and air-conditioning.
Background technique
Permanent magnet synchronous motor has the characteristics that small in size, overall operation efficiency is high, power factor (PF) is high, is widely used in centrifugation pressure
A variety of similar models such as contracting machine, helical-lobe compressor, air blower, as power drive other component.Compared with asynchronous starting motor,
Permanent magnet synchronous motor can avoid causing excitation loss while exciting current generates magnetic field using the permanent magnet excitation in rotor,
To generate amount of heat.If motor internal temperature is higher, the part such as line packet is easy aging, influences insulation performance；Especially
The permanent magnet of internal rotor can cause phenomenon of demagnetizing because working under high-temperature work environment for a long time.So needing to take corresponding
The heat inside motor is taken away in radiating and cooling measure, reduces the temperature of motor.For heavy-duty motor, winding current is larger, hair
Heat is more, and effective radiating and cooling is especially necessary.
According to the difference of the type of cooling, existing permanent magnet synchronous motor is divided into two kinds: open machine and enclosed motor.Open type electricity
Machine drives motor surrounding air to flow using air-cooled, using fan, to be motor radiating.But this kind of structure will increase entirely
The temperature of environment need to additionally increase equipment and radiate to external environment, and this structure opening, and motor working environment is poor,
There is limitation.The coil and motor of enclosed motor are located in closed cylinder, and working environment is relatively preferable, easy using freon etc.
Evaporation, non-conductive liquid cooling medium cool down.Existing major part compressor arrangement is all made of this kind of structure and the type of cooling.
Inventors have found that at least there are following problems in the prior art: enclosed motor is cooled down using liquid cooling medium,
The common type of cooling, method also there are many.Such as such as: spraying cooling medium in stator both ends winding；Either outside stator
Helical flow path is added to cool down winding hull-skin temperature etc. in surface.Since these measures are relatively simple, cooling effect with regard to limited,
The situation for inevitably having local temperature higher.
In addition, generating heat will increase when power of motor is bigger.Meanwhile motor length, diameter also will increase very
More, cooling inhomogeneities will improve.When especially power is greater than 500KW, diameter reaches 500mm or more, this single cold
But mode is only capable of cooling two ends of rotor or stator outer surface, is difficult to be cooled to position among rotor, part easy to form due to
Cooling cannot reach preferable cooling effect less than temperature drift is caused.If only eliminating localized hyperthermia by increasing refrigerant supply,
High-temperature part cooling effect is limited, while carrying out hidden danger to motor reliability operation work belt, also brings loss of refrigeration capacity, causes to press
The decline of contracting machine performance.
Utility model content
The utility model proposes a kind of motor, compressor and air-conditionings, to optimize the cooling structure of existing motor.
The utility model provides a kind of motor, comprising:
Shell, including accommodating cavity；
Rotor is located in the accommodating cavity；And
Stator, the periphery in the accommodating cavity and positioned at the rotor；
Wherein, the inside of the stator is equipped with refrigerant channel.
In some embodiments, the axis of the refrigerant channel is parallel to the axis of the stator.
In some embodiments, the quantity of the refrigerant channel is a plurality of.
In some embodiments, at least in the presence of two refrigerant channels axis at a distance from the axis of the stator phase
Deng.
In some embodiments, at least in the presence of two refrigerant channels axis at a distance from the axis of the stator not
It is equal.
In some embodiments, the inner wall of the shell is equipped with helicla flute；
The inflow entrance of the helicla flute is for flowing into refrigerant, the inflow of the outflux of the helicla flute and the refrigerant channel
Mouth connection, the outflux of the refrigerant channel are connected to the accommodating cavity.
In some embodiments, the inner wall of the shell is equipped with helicla flute；
The inflow entrance of the refrigerant channel is for flowing into refrigerant, the stream of the outflux of the refrigerant channel and the helicla flute
Entrance connection, the outflux of the helicla flute are connected to the accommodating cavity.
In some embodiments, the axis for being shorter in length than the stator along the axis stator direction of the helicla flute
To length.
In some embodiments, motor further include:
Bubbler is connected to the inflow entrance of the refrigerant channel, and the bubbler will be for that will store refrigerant.
In some embodiments, the bubbler includes the annular chamber for accommodating refrigerant.
The utility model embodiment provides a kind of compressor, including permanent magnetism provided by any technical solution of the utility model
Synchronous motor.
The utility model embodiment provides a kind of air-conditioning, including compresses provided by any technical solution of the utility model
Machine.
The technical solution of the utility model embodiment is equipped with refrigerant channel in the inside of stator, realizes to stator interior
Cooling.Above-mentioned technical proposal improves the type of cooling of motor, improves cooling by changing the path of refrigerant flowing
Uniformity, and then the reliability of motor operation is improved, especially suitable for relatively high power larger size motor, it ensure that stator is each
Portion temperature is relatively uniform.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
The exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the improper of the utility model
It limits.In the accompanying drawings:
Fig. 1 is the electric machine structure schematic diagram that an embodiment of the present invention provides；
Fig. 2 is the electric machine structure schematic diagram that another embodiment of the utility model provides.
Specific embodiment
Below with reference to FIG. 1 to FIG. 2, technical scheme provided by the present invention will be described in more detail.
Referring to Fig. 1, the utility model embodiment provides a kind of motor, which is specifically such as permanent magnet synchronous motor.
The motor includes shell 1, rotor 2 and stator 3.Shell 1 includes accommodating cavity 11.Rotor 2 is located in accommodating cavity 11；Stator 3 is located at
Periphery in accommodating cavity 11 and positioned at rotor 2.Wherein, the inside of stator 3 is equipped with refrigerant channel 4.
Shell 1 includes cylinder 12, first end cover 13 and second end cover 14.One end of cylinder 12 is equipped with first end cover 13, separately
One end is equipped with second end cover 14.Cylinder 12, first end cover 13 and second end cover 14 define accommodating cavity 11.The both ends of rotor 2 are logical
Two bearings are crossed to be mounted in first end cover 13 and second end cover 14.
Referring to Fig. 1, accommodating cavity 11 is probably divided into two parts, respectively first where the envelope curve of front end by stator 3 and rotor 2
The second cavity 112 where cavity 111 and rear end envelope curve.Rotor 2 passes through among stator 3, is mounted on inside stator 3, support
On front and back bearings.There are gap, referred to as air gap between rotor 2 and stator 3.It is fixed that first cavity 111 and the second cavity 112 pass through
Air gap connection between son 3 and rotor 2.Refrigerant in first cavity 111 and the second cavity 112 also passes through the air gap from wherein one
A cavity flows to another cavity.
The cooperation diameter of motor stator 3 and cylinder 12 has magnitude of interference, it may be assumed that and it is not only very close to each other between the two, between negative
Gap.Hot charging is needed when assembly, i.e. heating cylinder is allowed to expand, and is packed into motor stator 3 after generating gap between the two.To cylinder 12
After cooling, due to magnitude of interference between the two, securely fix together.
In some embodiments, refrigerant channel 4 is straight hole.Refrigerant channel 4 is such as through-hole or blind hole.If through-hole, then
Individual refrigerant introducing path can be set for refrigerant channel 4.It, can be by refrigerant channel 4 and electricity if refrigerant channel 4 is blind hole
The existing helicla flute 6 of machine is connected to.There are many modes being specifically connected to, and will provide a variety of implementations hereinafter.
Referring to Fig. 1, in some embodiments, the refrigerant outside motor is introduced into helicla flute 6, then flows to refrigerant channel 4.Scheming
In embodiment shown in 1, by taking such circulation style as an example.Specifically, cylinder inboard wall is equipped with helicla flute 6.The inflow of helicla flute 6
Mouth is for flowing into refrigerant, and the outflux of helicla flute 6 is connected to the inflow entrance of refrigerant channel 4, the outflux of refrigerant channel 4 and accommodating
Chamber 11 is connected to.
Specifically, the inflow entrance of helicla flute 6 is located at the rear end of cylinder 12, and the outflux of helicla flute 6 is located at cylinder 12
Front end.The inflow entrance of refrigerant channel 4 is located at the front end of stator 3, and the outflux of refrigerant channel 4 is located at the rear end of stator 3.Certainly,
The inflow entrance of helicla flute 6 can be also set to the front end of cylinder 12, refrigerant is equally able to achieve and carrys out diffraction current.
Motor operate when, by low temperature liquid refrigerant from the introduction hole at motor rear portion introduce, refrigerant along inner barrel spiral shell
Spin slot 6 reaches motor front end.In refrigerant flow process, 3 outer rim of motor stator is cooled down.
After refrigerant reaches the end slot of 6 terminal of helicla flute, enter refrigerant channel 4 from the pilot hole of motor stator 3, then reach motor
Tail end.During this, cooled down inside motor stator 3.
Refrigerant in cooling procedure, becomes gaseous state from liquid after heat absorption.
Pressure increases after refrigerant is collected at motor tail end, and refrigerant is pressed into the air gap between motor stator 3 and rotor 2, returns
To motor front.Refrigerant institute is cooled down inside rotor 2 and stator 3 through place, while refrigerant temperature increases.Before reaching motor
The cold media gas at end is drawn from the fairlead of cylinder, completes the cooling procedure of motor.
Above-mentioned implementation introduces refrigerant from motor rear portion using at 3 outer diameter of stator, along the helicla flute 6 of 12 inner wall of cylinder
Motor front is flowed to, the refrigerant channel 4 into 3 middle part of stator returns second cavity 112 at motor rear portion, then returns from air gap 7
To motor front end, motor is drawn finally by fairlead, realizes cooling procedure.
Referring to Fig. 1, cylinder 12 is cylindrical shape, and wall inner portion is provided with helicla flute 6.6 direction of rotation of helicla flute can be left-handed
Or dextrorotation.6 spacing of helicla flute is uniformly distributed.
In motor front end, a circle arc groove is opened along barrel wall circumference, as end slot in 6 final position of helicla flute.Helicla flute 6
It is communicated with end slot.End slot is circumferential circular groove.Refrigerant respectively enters each refrigerant along end slot circle distribution to 6 end of helicla flute
Runner 4.
Entire helicla flute 6 should be smaller than 3 length of stator along the length of cylinder axial direction, i.e., after installation stator 3, helicla flute 6 is answered
This is covered by stator 3.
The set-up mode and structure of refrigerant channel 4 is described below.
Hold it is above-mentioned, in some embodiments, refrigerant channel 4 be straight hole.The axis of refrigerant channel 4 is parallel to the axis of stator 3
Line.
In some embodiments, refrigerant channel 4 is uniformly distributed along 3 circumferencial direction of stator, and quantity can be big according to 3 size of stator
It is small to determine.4 quantity of refrigerant channel is more, and cooling more evenly, but processes complexity, and general quantity is 4-15, is so that 5-10 is a
It is good.
Because refrigerant channel 4 is deep, if the aperture of refrigerant channel 4 is small, processing conditions can be restricted；Aperture greatly for
Motor performance has an impact.The aperture of refrigerant channel 4 is generally 5-18 millimeters, is preferred with 5-10 millimeters.
In 4 blind hole terminal of refrigerant channel, quantity blind hole identical as refrigerant channel 4 is radially opened up, leads to 3 outer diameter table of stator
Face, as pilot hole.Refrigerant channel 4 is connected to helicla flute 6 by pilot hole.After stator 3 is installed in place, pilot hole on stator 3 with
Cylinder end slot position is corresponding and is connected to.
In some embodiments, at least there is the axis of two refrigerant channels 4 and being equidistant for the axis of stator 3.It should
Implementation realizes the uniform cooling in each region of stator 3.
In some embodiments, at least unequal at a distance from the axis of stator 3 in the presence of the axis of two refrigerant channels 4.
The implementation realizes the cooling of 3 different zones of stator.
The size how helicla flute 6 and refrigerant channel 4 are set is described below.
When motor operating, rotor 2 is rotated, and due to magneticaction, stator 3 produces rotating torque, is had and is rotated with it
Trend.On the other hand, the interference fit of motor stator 3 and cylinder contact surface generates frictional force, and frictional force generates and rotating torque
Opposite moment of friction.
Rotating torque T1 calculation formula:
T1=9549*P/n
Wherein: P--- power of motor；2 revolving speed of n--- rotor；
Moment of friction T2 calculation formula:
T2=F*D=k (μ * π * L) δ * D
Wherein: F--- frictional force；D--- barrel diameter；K--- motor stator 3 and cylinder dimensional performance coefficient；μ ----electricity
The coefficient of friction of machine stator 3 and cylinder；The length of fit of L---- motor stator 3 and cylinder；δ ----motor stator 3 and cylinder
Matching allowance.
Moment of friction is directlyed proportional to motor stator 3 to the length of fit of cylinder it can be seen from above formula.Matching herein
Close the contact length that length refers to motor stator 3 Yu cylinder.The two is not contacted in the part of helicla flute 6, so should arrange
Except outside.That is, L value is that 3 length of stator subtracts 6 overall width of helicla flute.
When moment of friction T2 is greater than rotating torque T1, stator 3 is fixed from dynamic, then motor can run well.
By above-mentioned each formula it is found that moment of friction is directlyed proportional to motor stator 3 to the length of fit of cylinder.So spiral
The groove width of slot 6 is arranged on this basis.
6 size of helicla flute and spacing can be determined according to power of motor and calorific value size.It is high-power, helicla flute 6
Can wider, spacing reduce, cooling uniformity is with regard to better.But helicla flute 6 is wide, is actually interference fitted
Length dimension will reduce.Since moment of friction has to be larger than rotating torque, so, 6 size of helicla flute should be according to practical feelings
Depending on condition, on condition that guaranteeing the length that is engaged of motor stator 3 and cylinder, moment of friction is made to be greater than rotating torque.
Referring to fig. 2, in further embodiments, refrigerant channel 4 is connected in the following manner with helicla flute 6.Outside motor
Refrigerant is introduced into refrigerant channel 4, then flows to helicla flute 6.In the embodiment shown in Figure 2, by taking such circulation style as an example.Specifically
For, cylinder inboard wall is equipped with helicla flute 6.The inflow entrance of refrigerant channel 4 is for flowing into refrigerant, the outflux and spiral shell of refrigerant channel 4
The inflow entrance of spin slot 6 is connected to, and the outflux of helicla flute 6 is connected to accommodating cavity 11.
Above-mentioned technical proposal, the refrigerant of outside motor are introduced into refrigerant channel 4, first cool down inside stator 3, cooling effect
It is good.
In some embodiments, permanent magnet synchronous motor further includes bubbler 5, the inflow entrance company of bubbler 5 and refrigerant channel 4
Logical, bubbler 5 will be for that will store refrigerant.
Unlike the technical solution of above-described embodiment, 6 final position local widening of helicla flute becomes a gap,
So that gap is protruded than stator 3, and refrigerant is directly from gap throw out spiral slot 6 after installation stator 3.
The motor that above-mentioned technical proposal provides, bubbler 5 is instead of refrigerant inlet.Bubbler 5 is mounted on motor front end, tightly
Paste stator 3.Bubbler 5 is equipped with spray orifice so that refrigerant is projected bubbler 5, and nozzle quantity set by bubbler 5 is cold with stator 3
Matchmaker's runner 4 is identical, and nozzle location is docked with the refrigerant channel 4 of stator 3.The liquid refrigerants that nozzle sprays enters the refrigerant of stator 3
Runner 4.
Bubbler 5 is used to store the liquid coolant with certain pressure.Nozzle has fixed pressurization, makes refrigerant spray,
It can smoothly enter into refrigerant channel 4.
When motor operates, liquid refrigerants introduces the intracorporal bubbler 5 of cylinder by pipeline, sprays under pressure from nozzle
Out, into 3 refrigerant channel 4 of the stator of docking, motor tail end, then drawing by motor stator 3 are reached from 3 front end of motor stator
Draw stator 3 in hole.During this, cooled down inside motor stator 3.
The pilot hole of motor stator 3 and end slot are co-located, so the refrigerant that pilot hole comes out enters the end slot of cylinder 12.
Then, helicla flute 6 of the refrigerant inside cylinder 12 reaches motor front end from motor tail portion.During this, outside motor stator 3
It is cooled down.
In 6 final position of helicla flute of motor front end, refrigerant enters motor front end from 6 gap of helicla flute.
Pressure increases after refrigerant is collected at motor front end, and refrigerant is pressed into the air gap between motor stator 3 and rotor 2, from
Motor front reaches motor tail portion.Refrigerant institute is cooled down inside rotor 2 and stator 3 through place.
Refrigerant in cooling procedure, gradually becomes gaseous state by liquid after heat absorption.
The cold media gas for reaching motor rear end is drawn from the fairlead of cylinder, completes the cooling procedure of motor.
In some embodiments, bubbler 5 includes the annular chamber for accommodating refrigerant.
Referring to fig. 2, in some embodiments, bubbler 5 is toroidal container, and inside can accommodate liquid refrigerants.Bubbler 5
It is communicated by pipeline with the refrigerant outside cylinder, refrigerant is introduced into bubbler 5.
In further embodiments, cooling structure tandem is exchanged, i.e., bubbler 5 is in motor rear end, refrigerant fairlead
In front end, refrigerant is introduced from motor rear portion, can achieve same cooling effect.
The utility model embodiment provides a kind of compressor, including permanent magnetism provided by any technical solution of the utility model
Synchronous motor.
Above-mentioned technical proposal, motor is cooling uniformly, eliminates the higher part of local temperature, will avoid such case completely
Generation, solve the problems, such as heavy-duty motor cooling uniformity, avoid rotor because longtime running cause permanent magnetism in the high temperature environment
Body demagnetization and caused by damage；It ensure that the safe and reliable operation of compressor.
The utility model embodiment provides a kind of air-conditioning, including compresses provided by any technical solution of the utility model
Machine.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown is only the utility model and simplified description for ease of description, rather than indicates or imply meaning
Device or element must have a particular orientation, construct and operate for specific orientation, thus should not be understood as practical new to this
The limitation of type protection content.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement, but these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (11)
1. a kind of motor characterized by comprising
Shell (1), including accommodating cavity (11)；
Rotor (2) is located in the accommodating cavity (11)；And
Stator (3) is located in the accommodating cavity (11) and is located at the periphery of the rotor (2)；
Wherein, the inside of the stator (3) is equipped with refrigerant channel (4).
2. motor according to claim 1, which is characterized in that the axis of the refrigerant channel (4) is parallel to the stator
(3) axis.
3. motor according to claim 1, which is characterized in that the quantity of the refrigerant channel (4) is a plurality of.
4. motor according to claim 3, which is characterized in that at least in the presence of two refrigerant channels (4) axis with
The axis of the stator (3) is equidistant.
5. motor according to claim 3, which is characterized in that at least in the presence of two refrigerant channels (4) axis with
The distance of the axis of the stator (3) is unequal.
6. motor according to claim 1, which is characterized in that the inner wall of the shell (1) is equipped with helicla flute (6)；
The inflow entrance of the helicla flute (6) is for flowing into refrigerant, outflux and the refrigerant channel (4) of the helicla flute (6)
Inflow entrance connection, the outflux of the refrigerant channel (4) is connected to the accommodating cavity (11).
7. motor according to claim 1, which is characterized in that the inner wall of the shell (1) is equipped with helicla flute (6)；
The inflow entrance of the refrigerant channel (4) is for flowing into refrigerant, the outflux and the helicla flute of the refrigerant channel (4)
(6) inflow entrance connection, the outflux of the helicla flute (6) are connected to the accommodating cavity (11).
8. motor according to claim 7, which is characterized in that further include:
Bubbler (5) is connected to the inflow entrance of the refrigerant channel (4), and the bubbler (5) will be for that will store refrigerant.
9. motor according to claim 8, which is characterized in that the bubbler (5) includes the annular for accommodating refrigerant
Chamber.
10. a kind of compressor, which is characterized in that including any motor of claim 1-9.
11. a kind of air-conditioning, which is characterized in that including compressor described in any one of claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821685452.8U CN208738934U (en) | 2018-10-17 | 2018-10-17 | motor, compressor and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821685452.8U CN208738934U (en) | 2018-10-17 | 2018-10-17 | motor, compressor and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208738934U true CN208738934U (en) | 2019-04-12 |
Family
ID=66035821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821685452.8U Active CN208738934U (en) | 2018-10-17 | 2018-10-17 | motor, compressor and air conditioner |
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| Country | Link |
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| CN (1) | CN208738934U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149806A (en) * | 2018-10-17 | 2019-01-04 | 珠海格力电器股份有限公司 | motor, compressor and air conditioner |
| JP2022551076A (en) * | 2019-12-24 | 2022-12-07 | グレート ウォール モーター カンパニー リミテッド | Motor cooling structures, drive assemblies and vehicles |
-
2018
- 2018-10-17 CN CN201821685452.8U patent/CN208738934U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149806A (en) * | 2018-10-17 | 2019-01-04 | 珠海格力电器股份有限公司 | motor, compressor and air conditioner |
| WO2020077778A1 (en) * | 2018-10-17 | 2020-04-23 | 珠海格力电器股份有限公司 | Electric motor, compressor and air conditioner |
| JP2022551076A (en) * | 2019-12-24 | 2022-12-07 | グレート ウォール モーター カンパニー リミテッド | Motor cooling structures, drive assemblies and vehicles |
| JP7381734B2 (en) | 2019-12-24 | 2023-11-15 | グレート ウォール モーター カンパニー リミテッド | Motor cooling structures, drive assemblies and vehicles |
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