CN109779902A - Electric scroll compressor longitudinal balance structure - Google Patents
Electric scroll compressor longitudinal balance structure Download PDFInfo
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- CN109779902A CN109779902A CN201910232412.0A CN201910232412A CN109779902A CN 109779902 A CN109779902 A CN 109779902A CN 201910232412 A CN201910232412 A CN 201910232412A CN 109779902 A CN109779902 A CN 109779902A
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- China
- Prior art keywords
- longitudinal balance
- passage
- ball valve
- exhaust outlet
- fixed scroll
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Abstract
The present invention relates to a kind of electric scroll compressor longitudinal balance structures, closed compression chamber is formed between orbiter and fixed scroll, fixed scroll upper and lower side is respectively equipped with exhaust outlet and air entry, it is equipped with longitudinal balance accommodating chamber in fixed scroll, is equipped with driving mechanism, elastic element, ball valve and longitudinal balance channel in longitudinal balance accommodating chamber；Ball valve setting is connect in longitudinal balance channel, and with gear, and wheel and rack engagement connection, rack gear one end is connected with exhaust outlet, and the other end connects elastic element；Orbiter is equipped with the backpressure passage being connected with compression chamber and longitudinal balance channel, and longitudinal balance one end of the channel is connected with back pressure cavity, and the other end is connected with backpressure passage.The present invention is mobile using the pressure differential rack pinion of air entry and exhaust outlet, while ball valve being driven to rotate, to realize the purpose of control ball valve aperture.Change the amount that constantly adjustment introduces the high pressure gas of back pressure cavity according to actual condition, realizes the balance of axial gas power.
Description
Technical field
The present invention relates to a kind of new-energy automotive air-conditioning field, especially a kind of electric scroll compressor longitudinal balance knot
Structure.
Background technique
Either economically or environmental angle, new-energy automobile is all the traditional vapour substituted using petrol and diesel oil as fuel
The optimal selection of vehicle is to adapt to ecological requirements, possess technologically advanced and exploitation innovation structure automobile industry rising star.It is complete to respond
Ball, which is protected, calls, and various countries formulate relevant policies in new-energy automobile field one after another, increases support dynamics, and new-energy automobile enters fast
Fast developing stage.People require also to be continuously improved for the comfort of walking-replacing tool simultaneously, and automobile heat pump air conditioner is electric car
Basis be equipped with facility, the development of air conditioning for automobiles heat pump techniques also pays close attention to by people.
Screw compressor is the most potential compressor of new-energy automotive air-conditioning, have high-efficient, with small vibration, reliability and
The features such as service life is high.With the raising of process equipment precision, the progress of assembly technology, in new-energy automobile heat pump air conditioner field
Using also increasingly wider.But the big problem for restricting screw compressor is leakage and sealing, screw compressor is in motion process
Middle compression cavity pressure increases, so that compression cavity pressure is higher than external pressure, is detached from quiet whirlpool to have and orbiter is pushed to have
The trend of capstan causes gap between orbiter and fixed scroll to increase, and brings and leaks the bad shadow that serious, efficiency reduces
It rings, it is therefore desirable to provide the power of an opposite direction in orbiter bottom, balance axial gas power suffered by orbiter.City
The existing screw compressor in field is usually in orbiter bottom opening, by compression chamber for the structure design of axial gas dynamic balance
Interior high pressure gas guides to back pressure cavity, realizes the purpose of axial gas dynamic balance.Although this structure can improve axial gas
Influence, but can not according to operating condition adjust introduce high pressure gas number.It can be according to air entry therefore, it is necessary to design one kind
The high pressure gas scale of construction for introducing back pressure cavity is adjusted with exhaust outlet pressure difference, guarantees compressor economy fortune while balancing axial gas force
Row improves the electric scroll compressor longitudinal balance structure of reliability and compressor efficiency.
Summary of the invention
The present invention is to provide for a kind of electric scroll compressor longitudinal balance structure, protects while balancing axial gas force
Compressor economical operation is demonstrate,proved, reliability and compressor efficiency are improved.
To achieve the above object, the technical scheme is that a kind of electric scroll compressor longitudinal balance structure, has
The identical fixed scroll of a pair of of structure and orbiter, form closed compression chamber between the orbiter and fixed scroll,
The fixed scroll upper and lower side is respectively equipped with exhaust outlet and air entry, is equipped with longitudinal balance accommodating chamber, axis in the fixed scroll
Driving mechanism, elastic element, ball valve and longitudinal balance channel are equipped with into balance accommodating chamber；Ball valve setting is logical in longitudinal balance
It in road, and is connect with the gear in driving mechanism, gear engages connection, rack gear one end and exhaust outlet with the rack gear in driving mechanism
It is connected, the other end connects elastic element；The orbiter is equipped with the back being connected with compression chamber and longitudinal balance channel
Pressure passageway, the longitudinal balance one end of the channel are connected with back pressure cavity, and the other end is connected with backpressure passage.
Further, the backpressure passage includes the axial passage A being connected with compression chamber and longitudinal balance mechanism accommodating chamber
Radial passage between the axial passage B of connection, and connection axial passage A and axial passage B.
Further, the backpressure passage compliant scroll coiling fixed scroll makees revolution translation, and motion profile is circle.
Further, the diameter of the axial passage A in the backpressure passage, radial passage and axial passage B are equal.
Further, the driving mechanism detects the pressure of air entry and exhaust outlet automatically, utilizes air entry and exhaust outlet
Pressure differential rack gear is mobile to be rotated with moving gear, and ball valve is driven to rotate, to control the aperture of ball valve, is realized according to operation
Operating condition active balance axial gas power.
The beneficial effects of the present invention are:
The screw compressor longitudinal balance structure of new-energy automobile heat pump air conditioner provided by the invention, at orbiter bottom
Portion provides a power and carrys out balancing axial gas force.Wherein, the longitudinal balance mechanism on fixed scroll include driving mechanism, ball valve,
Elastic element and longitudinal balance communicating passage；Orbiter is equipped with backpressure passage.Utilize the pressure difference of air entry and exhaust outlet
Drive rack gear is mobile, while ball valve being driven to rotate, to realize the purpose of control ball valve aperture.Changed according to actual condition
The constantly amount of the high pressure gas of adjustment introducing back pressure cavity, realizes the balance of axial gas power.The present invention can be achieved according to operation work
The purpose of condition active balance axial gas power.
Detailed description of the invention
Fig. 1 is electric scroll compressor longitudinal balance structural schematic diagram of the invention；
Fig. 2 is the backpressure passage structural schematic diagram on orbiter；
Fig. 3 is screw compressor top view.
In figure: 1, exhaust outlet；2, fixed scroll；3, orbiter；4, backpressure passage；5, ball valve；6, longitudinal balance channel；
7, elastic element；8, gear；9, rack gear；10, compression chamber；11, air entry；12, back pressure cavity；401, axial passage A；402, radial
Channel；403, axial passage B.
Specific embodiment
The invention will be further described with embodiment with reference to the accompanying drawing.
As shown in Figure 1 to Figure 3, electric scroll compressor longitudinal balance structure of the invention, including fixed scroll 2, dynamic whirlpool
Capstan 3, elastic element 7, gear 8, rack gear 9 etc..
Example one:
As shown in Figure 1, fixed scroll 2 is identical with 3 structure of orbiter, orbiter 3 is revolved relative to fixed scroll 2
Turn 180 ° and translate the opposed installation of certain distance, the enclosure space of two scroll wraps composition is compression chamber 10.
Orbiter 3 is equipped with backpressure passage 4, as shown in Fig. 2, backpressure passage 4 includes the axial direction communicated with compression chamber 10
Channel A401, the axial passage B403 being connected to longitudinal balance mechanism accommodating chamber, and connection axial passage A401 and axial logical
Radial passage 402 between road B403.4 compliant scroll disk 3 of backpressure passage makees revolution translation around fixed scroll 2, and motion profile is
Circle.Axial passage A401, radial passage 402 in backpressure passage 4 is equal with the diameter of axial passage B403.
2 are equipped with longitudinal balance mechanism accommodating chamber on fixed scroll, as shown in Figure 1, the axis in longitudinal balance mechanism accommodating chamber
It include driving mechanism, ball valve 5, elastic element 7 and the longitudinal balance communicating passage 6 being connected to back pressure cavity 12 to balance mechanism.
Driving mechanism includes rack gear 9 and gear 8, and 9 one end of rack gear is connected with elastic element 7, and the other end is communicated with exhaust outlet 11, driving
Mechanism can automatically detect the pressure of air entry 11 Yu exhaust outlet 1, move under the two pressure difference.
Ball valve 5 in the longitudinal balance structure accommodating chamber of fixed scroll, is weldingly connected with gear 8, can be in longitudinal balance knot
It is freely rotated in structure accommodating chamber, degree of rotation is decided by the connecting degree of backpressure passage 4 Yu longitudinal balance channel 6, that is, adjusts and draw
Enter the amount of high pressure gas in back pressure cavity 12.When 1 pressure of exhaust outlet is much larger than 11 pressure of air entry, rack gear 9 is moved to the left, elasticity
Element 7 is compressed, and rack gear 9 is rotated counterclockwise with moving gear 8, while ball valve 5 is also made to rotate counterclockwise, and 5 aperture of ball valve increases at this time
Greatly, it is possible to increase the high pressure gas scale of construction of back pressure cavity 12 is introduced from backpressure passage 4；Conversely, rack gear moves right while ball valve being driven to do
It rotates clockwise, to reduce the high pressure gas scale of construction for introducing back pressure cavity.
Example two:
Similarly with ball valve 5, ball valve 5 can be replaced with butterfly valve, butterfly valve is weldingly connected with gear 8.When 1 pressure of exhaust outlet is much larger than
When 11 pressure of air entry, rack gear 9 is moved to the left, and elastic element 7 is compressed, and rack gear 9 is rotated counterclockwise with moving gear 8, while butterfly
Valve also rotates, and butterfly valve opening increases at this time, it is possible to increase the high pressure gas scale of construction of back pressure cavity 12 is introduced from backpressure passage 4；Conversely, rack gear
9 move right while butterfly valve being driven to return to closed state, to reduce the high pressure gas scale of construction for introducing back pressure cavity 12.Therefore, this hair
It is bright can according to actual operating mode balance orbiter suffered by axial gas power effect.
Claims (5)
1. a kind of electric scroll compressor longitudinal balance structure has the identical fixed scroll (2) of a pair of of structure and orbiter
(3), it is characterised in that: formed closed compression chamber (10) between the orbiter (3) and fixed scroll (2), the quiet whirlpool
Capstan (2) upper and lower side is respectively equipped with exhaust outlet (1) and air entry (11), is equipped with longitudinal balance in the fixed scroll (2) and accommodates
Chamber is equipped with driving mechanism, elastic element (7), ball valve (5) and longitudinal balance channel (6) in longitudinal balance accommodating chamber；Ball valve
(5) setting is in longitudinal balance channel (6), and connect with the gear (8) in driving mechanism, in gear (8) and driving mechanism
Rack gear (9) engagement connection, rack gear (9) one end are connected with exhaust outlet (1), and the other end connects elastic element (7)；The dynamic vortex
Disk (3) is equipped with the backpressure passage (4) being connected with compression chamber (10) and longitudinal balance channel (6), the longitudinal balance channel
(6) one end is connected with back pressure cavity (12), and the other end is connected with backpressure passage (4).
2. electric scroll compressor longitudinal balance structure according to claim 1, it is characterised in that: the backpressure passage
It (4) include the axial passage A (401) being connected with compression chamber (10), the axial passage B that is connected to longitudinal balance mechanism accommodating chamber
(403), and connection axial passage A (401) and axial passage B (403) between radial passage (402).
3. electric scroll compressor longitudinal balance structure according to claim 2, it is characterised in that: the backpressure passage
(4) compliant scroll disk (3) makees revolution translation around fixed scroll (2), and motion profile is circle.
4. electric scroll compressor longitudinal balance structure according to claim 2, it is characterised in that: the backpressure passage
(4) diameter of axial passage A (401), radial passage (402) and axial passage B (403) in are equal.
5. electric scroll compressor longitudinal balance structure according to claim 1 to 4, it is characterised in that: the driving
Mechanism detects the pressure of air entry (11) Yu exhaust outlet (1) automatically, utilizes the pressure differential tooth of air entry (11) and exhaust outlet (1)
Item (9) is mobile to be rotated with moving gear (8), and ball valve (5) is driven to rotate, to control the aperture of ball valve (5), is realized according to fortune
Row operating condition active balance axial gas power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910232412.0A CN109779902A (en) | 2019-03-26 | 2019-03-26 | Electric scroll compressor longitudinal balance structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910232412.0A CN109779902A (en) | 2019-03-26 | 2019-03-26 | Electric scroll compressor longitudinal balance structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109779902A true CN109779902A (en) | 2019-05-21 |
Family
ID=66490487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910232412.0A Pending CN109779902A (en) | 2019-03-26 | 2019-03-26 | Electric scroll compressor longitudinal balance structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109779902A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114962259A (en) * | 2022-05-24 | 2022-08-30 | 江苏太平洋精锻科技股份有限公司 | Back pressure mechanism of air conditioner compressor of electric automobile |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11173283A (en) * | 1997-08-21 | 1999-06-29 | Tecumseh Prod Co | Intermediate pressure regulating valve for scroll machine |
| CN1690431A (en) * | 2004-04-28 | 2005-11-02 | 乐金电子(天津)电器有限公司 | Screw compressor |
| JP2007138868A (en) * | 2005-11-21 | 2007-06-07 | Hitachi Appliances Inc | Scroll compressor |
| JP2008031920A (en) * | 2006-07-28 | 2008-02-14 | Daikin Ind Ltd | Rotary compressor |
| CN107893757A (en) * | 2017-11-06 | 2018-04-10 | 珠海格力电器股份有限公司 | The control method of screw compressor, air conditioner and screw compressor |
-
2019
- 2019-03-26 CN CN201910232412.0A patent/CN109779902A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11173283A (en) * | 1997-08-21 | 1999-06-29 | Tecumseh Prod Co | Intermediate pressure regulating valve for scroll machine |
| CN1690431A (en) * | 2004-04-28 | 2005-11-02 | 乐金电子(天津)电器有限公司 | Screw compressor |
| JP2007138868A (en) * | 2005-11-21 | 2007-06-07 | Hitachi Appliances Inc | Scroll compressor |
| JP2008031920A (en) * | 2006-07-28 | 2008-02-14 | Daikin Ind Ltd | Rotary compressor |
| CN107893757A (en) * | 2017-11-06 | 2018-04-10 | 珠海格力电器股份有限公司 | The control method of screw compressor, air conditioner and screw compressor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114962259A (en) * | 2022-05-24 | 2022-08-30 | 江苏太平洋精锻科技股份有限公司 | Back pressure mechanism of air conditioner compressor of electric automobile |
| CN114962259B (en) * | 2022-05-24 | 2023-12-05 | 江苏太平洋精锻科技股份有限公司 | Back pressure mechanism of electric automobile air conditioner compressor |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20190521 |