CN106401976A - Air conditioner and screw compressor thereof - Google Patents
Air conditioner and screw compressor thereof Download PDFInfo
- Publication number
- CN106401976A CN106401976A CN201610917666.2A CN201610917666A CN106401976A CN 106401976 A CN106401976 A CN 106401976A CN 201610917666 A CN201610917666 A CN 201610917666A CN 106401976 A CN106401976 A CN 106401976A
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- CN
- China
- Prior art keywords
- helical
- motor
- cavity
- lobe compressor
- sap cavity
- 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.)
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
- F04C29/045—Heating; Cooling; Heat insulation of the electric motor in hermetic pumps
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
Abstract
The invention discloses an air conditioner and a screw compressor thereof. The air conditioner comprises a machine body of which one end is internally hollow, and an air suction end cover; the machine body and the air suction end cover jointly form a motor cavity after being connected, and the a liquid cavity is formed in the wall of the motor cavity; and the liquid cavity is provided with a liquid inlet and a liquid outlet, and the liquid inlet communicates with the outside of the machine body and the inside of the liquid cavity. According to the screw compressor provided by the invention, the wall of the motor cavity is cooled with cooling liquid in the liquid cavity at first, thus, a motor is cooled, overall cooling of the motor is more balanced, and the effect that the motor can meet many working conditions is ensured.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly, it relates to a kind of air-conditioner and its helical-lobe compressor.
Background technology
Helical-lobe compressor is widely used on air-conditioner, and especially low temperature helical-lobe compressor is with its small volume, compact conformation
It is applied to low temperature environment.The structure of low temperature helical-lobe compressor includes body, and one end of body is fixedly connected with air-breathing end cap, and
And the inner end portion hollow that body is connected with air-breathing end cap, after air-breathing end cap is connected with body, both surround motor cavity, that is, jointly
The hollow part of body end is collectively forming motor cavity with the inside of air-breathing end cap.The motor of low temperature helical-lobe compressor is arranged on electricity
Inside machine cavity.
In helical-lobe compressor running, the temperature of its motor is higher, there is the risk that motor burns out, adopts in prior art
With the mode to motor top hydrojet, it is cooled down, but so the local of motor can only be lowered the temperature, and motor is overall
Cooling-down effect undesirable, lead to motor can not meet compared with multi-state.
In sum, how to efficiently solve the bad problem of motor entirety cooling-down effect, be current people in the art
Member's urgent problem.
Content of the invention
In view of this, first purpose of the present invention is to provide a kind of helical-lobe compressor, the structure of this helical-lobe compressor
Design can efficiently solve the bad problem of motor entirety cooling-down effect, and second object of the present invention is to provide a kind of inclusion
The air-conditioner of above-mentioned helical-lobe compressor.
In order to reach above-mentioned first purpose, the present invention provides following technical scheme：
A kind of helical-lobe compressor, the body including one end inner hollow and air-breathing end cap, and described body and air-breathing end cap
Jointly surround motor cavity after connection, described motor cavity wall be internally provided with sap cavity, and described sap cavity has inlet and goes out liquid
Mouthful, described inlet connects inside described engine body exterior and sap cavity.
Preferably, in above-mentioned helical-lobe compressor, described liquid outlet connects described sap cavity and described motor cavity.
Preferably, in above-mentioned helical-lobe compressor, described liquid outlet is located at the top of described sap cavity.
Preferably, in above-mentioned helical-lobe compressor, at described inlet, it is provided with liquid injection valve.
Preferably, in above-mentioned helical-lobe compressor, described inlet is located at the top of described sap cavity.
Preferably, in above-mentioned helical-lobe compressor, described liquid injection valve is taper thread valve.
Preferably, in above-mentioned helical-lobe compressor, described sap cavity generally annular and the motor within around described motor cavity
Circumferentially disposed.
Preferably, in above-mentioned helical-lobe compressor, the section of described sap cavity is square.
Preferably, in above-mentioned helical-lobe compressor, a part for described sap cavity is located on described body, and another part is located at institute
State on suction end lid.
Preferably, in above-mentioned helical-lobe compressor, described sap cavity is entirely located on described body.
A kind of air-conditioner, including the helical-lobe compressor as any one of above-mentioned.
The helical-lobe compressor that the present invention provides includes body and air-breathing end cap, body identical with structure of the prior art
The inner end portion hollow being connected with air-breathing end cap, body surrounds motor cavity after being fixedly connected with air-breathing end cap jointly, i.e. body
The inside of hollow bulb and air-breathing end cap is collectively forming motor cavity, and the motor of helical-lobe compressor is fixed on motor intracavity.Emphasis
Be, motor cavity wall be internally provided with sap cavity, and sap cavity has inlet and a liquid outlet, inlet connection engine body exterior and liquid
Intracavity portion.The pars intramuralis hollow surrounding motor cavity forms sap cavity, and coolant can be through inlet from engine body exterior influent chamber
Interior, cooled down with the wall to motor cavity, carry out heat exchange inside motor cavity wall and motor cavity, and then motor is lowered the temperature.
The present invention provide helical-lobe compressor in, the coolant first passing through in sap cavity cools down to motor cavity wall, so realize right
The cooling of motor, makes motor integrally lower the temperature more equilibrium it is ensured that motor disclosure satisfy that compared with multi-state.
In order to reach above-mentioned second purpose, present invention also offers a kind of air-conditioner, this air-conditioner includes any of the above-described
Plant helical-lobe compressor.Because above-mentioned helical-lobe compressor has above-mentioned technique effect, there is the air-conditioner of this helical-lobe compressor
Should have corresponding technique effect.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the sectional view of body provided in an embodiment of the present invention；
Fig. 2 is the partial enlarged drawing of aminoacyl site in Fig. 1；
Fig. 3 is the sectional view of air-breathing end cap provided in an embodiment of the present invention；
Fig. 4 is the sectional view after body provided in an embodiment of the present invention is assembled with air-breathing end cap.
In figures 1-4：
1- body, 2- sap cavity, 21- inlet, 22- liquid outlet, 3- motor cavity, 4- air-breathing end cap, 5- liquid injection valve, 6- electricity
Machine.
Specific embodiment
First purpose of the present invention is to provide a kind of helical-lobe compressor, and the structure design of this helical-lobe compressor can have
Effect ground solves the problems, such as that motor entirety cooling-down effect is bad, and second object of the present invention is to provide one kind to include above-mentioned screw rod pressure
The air-conditioner of contracting machine.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
Refer to Fig. 1-Fig. 4, helical-lobe compressor provided in an embodiment of the present invention includes body 1 and air-breathing end cap 4, and existing
Structure in technology is identical, the inner end portion hollow that body 1 is connected with air-breathing end cap 4, and body 1 is fixedly connected with air-breathing end cap 4
Jointly surround motor cavity 3 afterwards, that is, the inside of the hollow bulb of body 1 and air-breathing end cap 4 is collectively forming motor cavity 3, helical-lobe compressor
Motor 6 be fixed in motor cavity 3.Focus on, motor cavity wall be internally provided with sap cavity 2, and sap cavity 2 has feed liquor
Mouth 21 and liquid outlet 22, inside inlet 21 connection body 1 outside and sap cavity 2.The pars intramuralis hollow surrounding motor cavity 3 is formed
Sap cavity 2, coolant can be cooled down with the wall to motor cavity 3, motor through inlet 21 in the outside inflow sap cavity 2 of body 1
Carry out heat exchange inside cavity wall and motor cavity 3, and then motor is lowered the temperature.In the helical-lobe compressor that the present invention provides, first
By the coolant in sap cavity 2, motor 6 cavity wall is cooled down, and then realize the cooling to motor 6, make the overall cooling of motor 6
More equilibrium is it is ensured that motor 6 disclosure satisfy that compared with multi-state.Wherein, coolant can be water.
In order to improve motor 6 cooling effect further, wherein liquid outlet 22 can connect sap cavity 2 and motor cavity 3, i.e. sap cavity
Coolant in 2 can flow into motor cavity 3 through liquid outlet 22, and the coolant of entrance motor cavity 3 and motor 6 wall contacts are to enter one
Step is lowered the temperature to motor 6.Preferably, liquid outlet 22 is located at the top of sap cavity 2, and so the coolant within entrance sap cavity 2 is due to weight
Power flow to sap cavity 2 bottom first, until coolant just can flow out through liquid outlet 22 after being full of sap cavity 2, ensure that coolant with this
Sufficiently cool to motor cavity wall.Certainly, liquid outlet 22 can also be located at middle part or the bottom of sap cavity 2, is not limited thereto.
Certainly, liquid outlet 22 can also connect outside sap cavity 2 and body 1, and that is, the coolant in sap cavity 2 carries out warp after heat exchange
Liquid outlet 22 flows out sap cavity 2 to body 1, is not limited thereto.
In order to optimize above-described embodiment further, liquid injection valve 5 can also be set at inlet 21.It is arranged such, cooling
Liquid sprays to sap cavity 2 through liquid injection valve 5, increased the heat exchange area of coolant, accordingly improves the cooling effect of motor.Enter
Liquid mouth 21 can also be located at the top of sap cavity 2, under such coolant is by sap cavity 2 top jet, increased coolant and motor
The time of contact of cavity wall, further ensure heat transfer effect.Certainly, inlet 21 can also be located at sap cavity 2 middle part or bottom,
It is not limited thereto.
In order to ensure stability and the sealing of liquid injection valve 5 installation, wherein liquid injection valve 5 is taper thread valve.
Wherein, sap cavity 2 is generally annular and the motor within around motor cavity is circumferentially disposed.The i.e. axis of annular sap cavity 2
Dead in line setting with motor, the coolant in sap cavity 2 can cool down to the motor cavity wall of motor circumference.For the ease of
Processing, the section of sap cavity 2 is square, and the section of certain sap cavity 2 can also be circular, oval etc., is not limited thereto.Sap cavity
2 can also be other shapes, and such as multiple linears being parallel to each other are not limited thereto.
When sap cavity is annular, only position relative with motor for body need to be processed as double wall, between two layers of walls
Gap forms sap cavity.
In order to increase the volume of sap cavity 2, a wherein part for sap cavity 2 is located on body 1, and another part is located at air-breathing end cap
On 4.So the coolant in sap cavity 2 cools down to body 1 and air-breathing end cap 4 simultaneously, improves cooling effect.Certainly, liquid
Chamber 2 can also be entirely located on body 1, is not limited thereto.
Based on the helical-lobe compressor providing in above-described embodiment, present invention also offers a kind of air-conditioner, this air-conditioner bag
Include any one helical-lobe compressor in above-described embodiment.Employ the helical-lobe compressor in above-described embodiment, institute due to this air-conditioning
Above-described embodiment be refer to the beneficial effect of this air-conditioner.
In this specification, each embodiment is described by the way of going forward one by one, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple modifications to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and be to fit to and principles disclosed herein and features of novelty phase one
The scope the widest causing.
Claims (11)
1. a kind of helical-lobe compressor, the body (1) including one end inner hollow and air-breathing end cap (4), and described body (1) and suction
Gas end cap (4) connect after jointly surround motor cavity (3) it is characterised in that described motor cavity wall be internally provided with sap cavity (2),
And described sap cavity (2) has inlet (21) and liquid outlet (22), described inlet (21) connects that described body (1) is outside and liquid
Chamber (2) is internal.
2. helical-lobe compressor according to claim 1 is it is characterised in that described liquid outlet (22) connects described sap cavity (2)
With described motor cavity (3).
3. helical-lobe compressor according to claim 1 and 2 is it is characterised in that described liquid outlet (22) is located at described sap cavity
(2) top.
4. helical-lobe compressor according to claim 1 is it is characterised in that described inlet (21) place is provided with liquid injection valve
(5).
5. the helical-lobe compressor according to claim 1 or 4 is it is characterised in that described inlet (21) is located at described sap cavity
(2) top.
6. helical-lobe compressor according to claim 4 is it is characterised in that described liquid injection valve (5) is taper thread valve.
7. helical-lobe compressor according to claim 1 it is characterised in that described sap cavity (2) generally annular and around institute
The motor stated within motor cavity is circumferentially disposed.
8. the helical-lobe compressor according to claim 1 or 7 is it is characterised in that the section of described sap cavity (2) is square.
9. the helical-lobe compressor according to claim 1 or 7 is it is characterised in that a part for described sap cavity (2) is positioned at described
On body (1), another part is located on described air-breathing end cap (4).
10. the helical-lobe compressor according to claim 1 or 7 is it is characterised in that described sap cavity (2) is entirely located in described machine
On body (1).
A kind of 11. air-conditioners are it is characterised in that include the helical-lobe compressor as any one of claim 1-10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610917666.2A CN106401976A (en) | 2016-10-21 | 2016-10-21 | Air conditioner and screw compressor thereof |
| PCT/CN2017/094930 WO2018072517A1 (en) | 2016-10-21 | 2017-07-28 | Air-conditioner and screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610917666.2A CN106401976A (en) | 2016-10-21 | 2016-10-21 | Air conditioner and screw compressor thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106401976A true CN106401976A (en) | 2017-02-15 |
Family
ID=58012497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610917666.2A Pending CN106401976A (en) | 2016-10-21 | 2016-10-21 | Air conditioner and screw compressor thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106401976A (en) |
| WO (1) | WO2018072517A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018072517A1 (en) * | 2016-10-21 | 2018-04-26 | 珠海格力电器股份有限公司 | Air-conditioner and screw compressor |
| CN111963427A (en) * | 2019-05-20 | 2020-11-20 | 复盛实业(上海)有限公司 | Screw compressor |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07317684A (en) * | 1994-05-25 | 1995-12-05 | Hitachi Ltd | Sealed electric compressor and cooling device |
| US5947711A (en) * | 1997-04-16 | 1999-09-07 | Gardner Denver Machinery, Inc. | Rotary screw air compressor having a separator and a cooler fan assembly |
| CN201094148Y (en) * | 2007-02-06 | 2008-07-30 | 邢培良 | Energy saving water cooling permanent magnetism variable-frequency control three-phase machine |
| CN101334036A (en) * | 2007-06-29 | 2008-12-31 | 上海汉钟精机股份有限公司 | Semi-closed screw type refrigerating compressor air guide sleeve |
| CN100543308C (en) * | 1998-09-17 | 2009-09-23 | 株式会社日立制作所 | Oilless lubricating screw type compressor |
| CN103532308A (en) * | 2013-10-30 | 2014-01-22 | 吴家伟 | Half-seal screw compressor of refrigerating fluid liquid-cooling motor |
| CN103532307A (en) * | 2013-10-21 | 2014-01-22 | 南车株洲电力机车研究所有限公司 | Permanent magnet synchronous traction motor and oil cooling device thereof |
| CN103683673A (en) * | 2013-11-13 | 2014-03-26 | 华南理工大学 | Direct spray-type motor cooling system |
| CN104912809A (en) * | 2014-03-14 | 2015-09-16 | 珠海格力电器股份有限公司 | Compressor and air conditioner with the same |
| CN105402135A (en) * | 2014-08-18 | 2016-03-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary compressor |
| WO2016136482A1 (en) * | 2015-02-25 | 2016-09-01 | 株式会社日立産機システム | Oilless compressor |
| CN206144795U (en) * | 2016-10-21 | 2017-05-03 | 珠海格力电器股份有限公司 | Air conditioner and helical -lobe compressor thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1059454B1 (en) * | 1999-06-09 | 2003-08-27 | Sterling Fluid Systems (Germany) GmbH | Rotary piston compressor with axial flow |
| BE1013944A3 (en) * | 2001-03-06 | 2003-01-14 | Atlas Copco Airpower Nv | Water injected screw compressor. |
| CN101660532B (en) * | 2008-08-29 | 2012-04-18 | 中国科学院沈阳科学仪器研制中心有限公司 | Water-cooling system of multi-stage dry vacuum pump |
| CN102352842A (en) * | 2011-09-22 | 2012-02-15 | 烟台冰轮股份有限公司 | Novel water-cooling semi-sealed helical-lobe compressor |
| CN203430780U (en) * | 2013-08-13 | 2014-02-12 | 福建雪人压缩机科技有限公司 | Semi-closed variable-frequency high-speed screw refrigerating compressor |
| CN204402888U (en) * | 2014-12-31 | 2015-06-17 | 烟台冰轮股份有限公司 | A kind of water-cooling semi-sealed helical-lobe compressor |
| CN106401976A (en) * | 2016-10-21 | 2017-02-15 | 珠海格力电器股份有限公司 | Air conditioner and screw compressor thereof |
-
2016
- 2016-10-21 CN CN201610917666.2A patent/CN106401976A/en active Pending
-
2017
- 2017-07-28 WO PCT/CN2017/094930 patent/WO2018072517A1/en active Application Filing
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07317684A (en) * | 1994-05-25 | 1995-12-05 | Hitachi Ltd | Sealed electric compressor and cooling device |
| US5947711A (en) * | 1997-04-16 | 1999-09-07 | Gardner Denver Machinery, Inc. | Rotary screw air compressor having a separator and a cooler fan assembly |
| CN100543308C (en) * | 1998-09-17 | 2009-09-23 | 株式会社日立制作所 | Oilless lubricating screw type compressor |
| CN201094148Y (en) * | 2007-02-06 | 2008-07-30 | 邢培良 | Energy saving water cooling permanent magnetism variable-frequency control three-phase machine |
| CN101334036A (en) * | 2007-06-29 | 2008-12-31 | 上海汉钟精机股份有限公司 | Semi-closed screw type refrigerating compressor air guide sleeve |
| CN103532307A (en) * | 2013-10-21 | 2014-01-22 | 南车株洲电力机车研究所有限公司 | Permanent magnet synchronous traction motor and oil cooling device thereof |
| CN103532308A (en) * | 2013-10-30 | 2014-01-22 | 吴家伟 | Half-seal screw compressor of refrigerating fluid liquid-cooling motor |
| CN103683673A (en) * | 2013-11-13 | 2014-03-26 | 华南理工大学 | Direct spray-type motor cooling system |
| CN104912809A (en) * | 2014-03-14 | 2015-09-16 | 珠海格力电器股份有限公司 | Compressor and air conditioner with the same |
| CN105402135A (en) * | 2014-08-18 | 2016-03-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary compressor |
| WO2016136482A1 (en) * | 2015-02-25 | 2016-09-01 | 株式会社日立産機システム | Oilless compressor |
| CN206144795U (en) * | 2016-10-21 | 2017-05-03 | 珠海格力电器股份有限公司 | Air conditioner and helical -lobe compressor thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018072517A1 (en) * | 2016-10-21 | 2018-04-26 | 珠海格力电器股份有限公司 | Air-conditioner and screw compressor |
| CN111963427A (en) * | 2019-05-20 | 2020-11-20 | 复盛实业(上海)有限公司 | Screw compressor |
| CN111963427B (en) * | 2019-05-20 | 2022-06-14 | 复盛实业(上海)有限公司 | Screw compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018072517A1 (en) | 2018-04-26 |
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