CN107733163A - Motor, centrifugal compressor and air conditioning unit - Google Patents
Motor, centrifugal compressor and air conditioning unit Download PDFInfo
- Publication number
- CN107733163A CN107733163A CN201711077728.4A CN201711077728A CN107733163A CN 107733163 A CN107733163 A CN 107733163A CN 201711077728 A CN201711077728 A CN 201711077728A CN 107733163 A CN107733163 A CN 107733163A
- Authority
- CN
- China
- Prior art keywords
- stator
- motor
- rear end
- installation step
- cylinder
- 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.)
- Granted
Links
- 238000004378 air conditioning Methods 0.000 title abstract 2
- 239000003507 refrigerant Substances 0.000 claims abstract description 44
- 238000009434 installation Methods 0.000 claims abstract description 24
- 230000008676 import Effects 0.000 claims abstract description 23
- 238000002955 isolation Methods 0.000 claims 1
- 230000006872 improvement Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 8
- 239000002826 coolant Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction 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
- 239000000686 essence Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/197—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/20—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil wherein the cooling medium vaporises within the machine casing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compressor (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a motor, a centrifugal compressor and an air conditioning unit, wherein the motor comprises: the inner wall is equipped with the barrel of round installation step, the cover is at the stator in the installation step inner circle, locate in the stator and can follow self axis pivoted rotor, the region that is located the stator front end in the barrel is preceding chamber, the region that is located the stator rear end is the back chamber, be equipped with the refrigerant import with preceding chamber intercommunication on the barrel, the return-air port with the back chamber intercommunication, preceding chamber passes through the clearance intercommunication back chamber between stator and the rotor, the ring is kept off to the rear end of stator is installed, keep off the ring and keep off on the rear end face of installation step, it is isolated with the back chamber with the clearance between stator and the barrel. The invention has the advantages of simple structure, capability of preventing the refrigerant from leaking, improvement of the assembly efficiency and the like.
Description
Technical field
The present invention relates to electric machine structure technical field, more particularly to a kind of motor, centrifugal compressor and air-conditioner set.
Background technology
During centrifugal compressor normal operation, motor can generate heat and be main heater element in the energized state, if this
A little heats are taken away not in time, and the coil temperature of motor will be raised constantly, and magnetic signature will change, and compressor performance can be significantly
Decline, when coil temperature is higher than the limiting value of coil insulation, coil insulation will be caused to damage, compressor can not normal operation.
In order to ensure compressor normal operation, prevent motor from occurring coil insulation damage, rotor demagnetization etc. because temperature is too high
Failure.Centrifugal compressor carries out independent cooling to motor at present, i.e. liquid refrigerants enters through motor one end, and traditional motor is cold
But structure, as shown in figure 1, refrigerant import 12 and the back cavity 5 of motor are closer to the distance, due to originals such as the surface soldered of stator 2 and polishings
Cause, some gaps between stator 2 and cylinder 1 be present, cause liquid coolant directly to reach back cavity 5 from refrigerant import 12 by the gap
Cooled via return air mouth 13 is drained, and can not effectively take away motor feels hot, cause motor cooling it is bad, compressor safety and reliability compared with
Difference.Also, the stator shaft orientation locating surface of conventional motors does not have corresponding locating surface in front end on cylinder 1, therefore needed in front end
Positioning tool is wanted to carry out located stator 2.Meanwhile stator 2 generally requires positioning tool, caused in 1 built-in timing of cylinder, axially position
Efficiency of assembling is relatively low.
Therefore, how to design it is a kind of it is simple in construction, can prevent coolant leakage, improve efficiency of assembling motor be industry urgently
The technical problem of solution.
The content of the invention
In order to solve drawbacks described above present in prior art, the present invention proposes a kind of motor, centrifugal compressor and sky
Adjust unit.
The technical solution adopted by the present invention is to design a kind of motor, including：Cylinder of the inwall provided with a circle installation step,
It is enclosed on stator in installation step inner ring, in stator and can be along the rotor of own axis, before being located at stator in cylinder
The region at end is ante-chamber, positioned at the region of stator rear end is back cavity, and cylinder is provided with the refrigerant import connected with ante-chamber and back cavity
The gas returning port of connection, ante-chamber connect back cavity by the gap between stator and rotor, and the rear end of stator is provided with baffle ring, baffle ring gear
On the rear end face of installation step, the gap between stator and cylinder and back cavity are completely cut off.
Close to the rear end face of the position of inner ring fitting stator on baffle ring, and it is fixed by screws on the rear end face of stator.
Close to the rear end face of the position of outer ring fitting installation step on baffle ring.Refrigerant import is located on cylinder close to the position of back cavity, returns
Gas port is arranged in the cavity wall of back cavity, and refrigerant import and gas returning port separate in the both sides of baffle ring.
Wherein, refrigerant channel, one end connection refrigerant import of refrigerant channel, the other end are additionally provided with the inwall of installation step
Connect ante-chamber.
Preferably, helically formula is distributed inwall of the refrigerant channel along installation step.
Preferably, refrigerant import is located at the bottom of cylinder.
The invention also provides a kind of centrifugal compressor, including above-mentioned motor.
The invention also provides a kind of air-conditioner set, including condenser, economizer, evaporator and above-mentioned centrifugal compressor
Machine, condenser or economizer are connected with refrigerant import, and evaporator is connected with gas returning port.
Compared with prior art, the invention has the advantages that：
1st, the gap between stator and cylinder and back cavity are completely cut off by the baffle ring of stator end, prevents refrigerant from passing through the direct clearance
It is connected to up to back cavity cooled via return air mouth and leaks, improves compressor operating stability；
2nd, stator can be connected in cylinder on the rear end face of installation step by baffle ring when mounted, directly using the end face of baffle ring as
The axial direction assembling locating surface of stator, cancels the axially position frock of existing motor assembling middle cylinder body front end, improves efficiency of assembling.
Brief description of the drawings
With reference to embodiment and accompanying drawing, the present invention is described in detail, wherein：
Fig. 1 is the diagrammatic cross-section of internal structure of motor in the prior art；
Fig. 2 is the diagrammatic cross-section of internal structure of motor in the present invention.
Embodiment
As shown in Fig. 2 a kind of present invention proposition motor, including：Cylinder 1, stator 2 and rotor 3, the inwall of cylinder 1 are set
There is the installation step 11 that a circle protrudes, stator 2 is enclosed in the inner ring of installation step 11, and rotor 3 is movably arranged in stator 2, and is turned
Son 3 can be ante-chamber 4, be positioned at the region of the rear end of stator 2 along own axis, the interior region positioned at the front end of stator 2 of cylinder 1
Back cavity 5, ante-chamber 4 connect back cavity 5 by the gap between stator 2 and rotor 3.Cylinder 1 is provided with refrigerant import 12 and gas returning port
13, gas returning port 13 is arranged in the cavity wall of back cavity 5, and refrigerant import 12 is located on cylinder 1 close to the position of back cavity 5 and passes through refrigerant
Runner 14 connects with ante-chamber 4.Refrigerant channel 14 is on the inwall of installation step 11, its one end connection refrigerant import 12, another
End connection ante-chamber 4, in order to ensure that liquid refrigerants can fully absorb heat in flow process, refrigerant channel 14 is along installation step 11
Helically formula is distributed wall.
The rear end of stator 2 is provided with baffle ring 6, and baffle ring 6 is kept off on the rear end face of installation step 11, by refrigerant import 12 and returns
Gas port 13 separates close to the rear end face of the position of inner ring fitting stator 2 on its both sides, baffle ring 6, and is fixed by screws in and determines
On the rear end face of son 2.Close to the rear end face of the position of outer ring fitting installation step 11 on baffle ring 6.During installation, first baffle ring 6 is consolidated
Determine on the stator 2, then stator 2 is inserted in cylinder 1, be bonded baffle ring 6 and the end face of installation step 11.Can be with by baffle ring 6
Gap between stator 2 and cylinder 1 and back cavity are completely cut off, liquid refrigerants can not be reached after the entrance of refrigerant import 12 by the gap
Back cavity 5, ante-chamber 4 can only be reached along refrigerant channel 14, so as to take away the heat of stator 2 and rotor 3, moreover, the end face of baffle ring 6
Be also used as the axial direction assembling locating surface of stator 2, without setting positioning tool in addition when stator 2 is installed, improve efficiency of assembling,
Reduce cost.
In use, liquid refrigerants enters refrigerant channel 14 from refrigerant import 12, ante-chamber 4, liquid are reached through refrigerant channel 14
It is gaseous state that refrigerant absorbs stator 2 and the heat of vaporization of rotor 3 in flow process, and gaseous coolant passes through between stator 2 and rotor 3
Gap return to back cavity 5, finally flowed out from gas returning port 13.
The invention also provides a kind of centrifugal compressor, including above-mentioned motor.
The invention also provides a kind of air-conditioner set, including：Condenser, economizer, evaporator and above-mentioned centrifugal pressure
Contracting machine, condenser or economizer are connected with refrigerant import 12, and evaporator is connected with gas returning port 13, and refrigerant import 12 is from cold during use
Condenser or economizer introduce liquid refrigerants, and after liquid refrigerants heat absorption is evaporated to gaseous state, evaporator is outflowed back to by gas returning port 13
It is interior.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
1. a kind of motor, including：Inwall is provided with a circle installation step（11）Cylinder（1）, be enclosed on the installation step（11）It is interior
Stator in circle（2）, be rotatably located at the stator（2）Interior rotor（3）, the cylinder（1）It is interior to be located at the stator（2）Before
The region at end is ante-chamber（4）, positioned at the stator（2）The region of rear end is back cavity（5）, the cylinder（1）Be provided with it is described
Ante-chamber（4）The refrigerant import of connection（12）And the back cavity（5）The gas returning port of connection（13）, the ante-chamber（4）Pass through stator
（2）With rotor（3）Between gap be communicated to the back cavity（5）, it is characterised in that the stator（2）Rear end gear is installed
Ring（6）, the baffle ring（6）Gear is in the installation step（11）Rear end face on, by the stator（2）And cylinder（1）Between
Gap and the back cavity（5）Isolation.
2. motor as claimed in claim 1, it is characterised in that the installation step（11）Inwall be provided with refrigerant channel
（14）, the refrigerant channel（14）One end connect the refrigerant import（12）, the other end connect the ante-chamber（4）.
3. motor as claimed in claim 2, it is characterised in that the refrigerant channel（14）Along installation step（11）Inwall be in
Spiral distribution.
4. the motor as described in any one of claims 1 to 3, it is characterised in that the refrigerant import（14）Positioned at cylinder（1）On
Close to back cavity（5）Position, the gas returning port（13）It is arranged on back cavity（5）Cavity wall on, the refrigerant import（12）And return-air
Mouthful（13）Separate in the baffle ring（6）Both sides.
5. motor as claimed in claim 4, it is characterised in that the refrigerant import（12）Located at the cylinder（1）Bottom.
6. the motor as described in any one of claims 1 to 3, it is characterised in that the baffle ring（6）It is upper to be pasted close to the position of inner ring
Close the stator（2）Rear end face, the baffle ring（6）It is upper to be bonded the installation step close to the position of outer ring（11）Rear end
Face.
7. motor as claimed in claim 6, it is characterised in that the baffle ring（6）The upper position close to inner ring is fixed on described
Stator（2）Rear end face on.
8. a kind of centrifugal compressor, it is characterised in that including the motor described in any one of the claims 1 to 7.
9. a kind of air-conditioner set, it is characterised in that including the centrifugal compressor described in the claims 8.
10. air-conditioner set as claimed in claim 9, it is characterised in that also include：Condenser, economizer and evaporator, it is described
Condenser or economizer and the refrigerant import（12）Connection, the evaporator and the gas returning port（13）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711077728.4A CN107733163B (en) | 2017-11-06 | 2017-11-06 | Motor, centrifugal compressor and air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711077728.4A CN107733163B (en) | 2017-11-06 | 2017-11-06 | Motor, centrifugal compressor and air conditioning unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107733163A true CN107733163A (en) | 2018-02-23 |
| CN107733163B CN107733163B (en) | 2020-06-16 |
Family
ID=61221553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711077728.4A Active CN107733163B (en) | 2017-11-06 | 2017-11-06 | Motor, centrifugal compressor and air conditioning unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107733163B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109391074A (en) * | 2018-12-27 | 2019-02-26 | 珠海格力电器股份有限公司 | Compressor motor, motor cooling structure and control method thereof |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1398452A (en) * | 2000-12-11 | 2003-02-19 | 三菱重工业株式会社 | Cooling structure of generator |
| CN201733179U (en) * | 2010-08-30 | 2011-02-02 | 湘潭电机股份有限公司 | High-speed motor for hybrid car |
| CN103765730A (en) * | 2011-03-09 | 2014-04-30 | 斯特里兹伯格创新公司 | Cooled magnet motor |
| CN203702592U (en) * | 2014-02-21 | 2014-07-09 | 珠海格力电器股份有限公司 | Compressor and cold water type air conditioning unit with same |
| JP2014138542A (en) * | 2013-01-18 | 2014-07-28 | Mitsubishi Electric Corp | Motor |
| CN104682612A (en) * | 2013-11-27 | 2015-06-03 | Skf磁性机械技术公司 | Versatile cooling housing for an electrical motor |
| CN106246606A (en) * | 2016-09-19 | 2016-12-21 | 珠海格力电器股份有限公司 | Compressor and air conditioner |
| CN206004481U (en) * | 2016-09-20 | 2017-03-08 | 珠海格力电器股份有限公司 | Cooling structure of permanent magnet synchronous motor |
| CN206237253U (en) * | 2016-10-27 | 2017-06-09 | 蔚来汽车有限公司 | The direct-cooled structure of motor |
| CN106921248A (en) * | 2015-11-05 | 2017-07-04 | 大众汽车有限公司 | For the casing device of motor |
| CN207504716U (en) * | 2017-11-06 | 2018-06-15 | 珠海格力电器股份有限公司 | Motor, centrifugal compressor and air conditioning unit |
-
2017
- 2017-11-06 CN CN201711077728.4A patent/CN107733163B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1398452A (en) * | 2000-12-11 | 2003-02-19 | 三菱重工业株式会社 | Cooling structure of generator |
| CN201733179U (en) * | 2010-08-30 | 2011-02-02 | 湘潭电机股份有限公司 | High-speed motor for hybrid car |
| CN103765730A (en) * | 2011-03-09 | 2014-04-30 | 斯特里兹伯格创新公司 | Cooled magnet motor |
| JP2014138542A (en) * | 2013-01-18 | 2014-07-28 | Mitsubishi Electric Corp | Motor |
| CN104682612A (en) * | 2013-11-27 | 2015-06-03 | Skf磁性机械技术公司 | Versatile cooling housing for an electrical motor |
| CN203702592U (en) * | 2014-02-21 | 2014-07-09 | 珠海格力电器股份有限公司 | Compressor and cold water type air conditioning unit with same |
| CN106921248A (en) * | 2015-11-05 | 2017-07-04 | 大众汽车有限公司 | For the casing device of motor |
| CN106246606A (en) * | 2016-09-19 | 2016-12-21 | 珠海格力电器股份有限公司 | Compressor and air conditioner |
| CN206004481U (en) * | 2016-09-20 | 2017-03-08 | 珠海格力电器股份有限公司 | Cooling structure of permanent magnet synchronous motor |
| CN206237253U (en) * | 2016-10-27 | 2017-06-09 | 蔚来汽车有限公司 | The direct-cooled structure of motor |
| CN207504716U (en) * | 2017-11-06 | 2018-06-15 | 珠海格力电器股份有限公司 | Motor, centrifugal compressor and air conditioning unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109391074A (en) * | 2018-12-27 | 2019-02-26 | 珠海格力电器股份有限公司 | Compressor motor, motor cooling structure and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107733163B (en) | 2020-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7704056B2 (en) | Two-stage vapor cycle compressor | |
| US4903497A (en) | Methods and devices for cooling a motor of a refrigerating machine with liquid and economizer gas | |
| US20080199326A1 (en) | Two-stage vapor cycle compressor | |
| US20090162222A1 (en) | Motor-driven compressor | |
| US8303270B2 (en) | Motor-driven compressor | |
| CN104929956B (en) | Motor-driven turbo compressor | |
| CN104377851B (en) | Permanent magnet motor, refrigeration compressor and air conditioning unit | |
| CN110014921A (en) | The charging unit and vehicle of vehicle | |
| KR20040084796A (en) | Refrigerant cycle apparatus | |
| CN207504716U (en) | Motor, centrifugal compressor and air conditioning unit | |
| WO2014083674A1 (en) | Compressor, refrigeration cycle device, and heat pump hot-water supply device | |
| CN107733163A (en) | Motor, centrifugal compressor and air conditioning unit | |
| CN104377852B (en) | Permanent magnet motor, refrigeration compressor and air conditioning unit | |
| CN105041648B (en) | Screw compressor and machine body thereof | |
| JP2007064173A (en) | Electric compressor | |
| CN206117328U (en) | A cooling structure for new forms of energy car air cooling motor stator winding | |
| JP2013001268A (en) | Air conditioning device for vehicle | |
| CN203261190U (en) | Heat radiation structure of superspeed PMSM | |
| CN109149806A (en) | motor, compressor and air conditioner | |
| CN205407496U (en) | Permanent magnet synchronous motor assembly, compressor with permanent magnet synchronous motor assembly and air conditioner with permanent magnet synchronous motor assembly | |
| WO2021065363A1 (en) | Turbo compressor | |
| JP4711884B2 (en) | Rotation output generator | |
| KR101534713B1 (en) | Air duct and cooling system for vehicle | |
| JP5543192B2 (en) | Electric compressor and vapor compression refrigerator using the same | |
| JP3716896B2 (en) | refrigerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |