CN208348058U - A kind of change displacement scroll compressor - Google Patents
A kind of change displacement scroll compressor Download PDFInfo
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- CN208348058U CN208348058U CN201820653125.8U CN201820653125U CN208348058U CN 208348058 U CN208348058 U CN 208348058U CN 201820653125 U CN201820653125 U CN 201820653125U CN 208348058 U CN208348058 U CN 208348058U
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- compression mechanism
- accommodating cavity
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- scroll
- support frame
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Abstract
The utility model discloses a kind of change displacement scroll compressors, including shell, upper end cover, lower cover, control box, the first compression mechanism, the second compression mechanism；First compression mechanism includes the first fixed scroll, the first movable orbiting scroll, the first support frame, the first gasket, the first venthole is offered on first support frame, first venthole two sidewalls offer accommodating cavity respectively, two accommodating cavity bottoms are respectively equipped with electromagnet, the first block is equipped in one accommodating cavity, first block end is equipped with magnet, and the second block is equipped in another accommodating cavity, and the second block end is equipped with magnet；It controls and is equipped with controller in box, electromagnet is electrically connected with the controller.Gas can control to enter compression chamber by the opening and closing of baffle, first compression mechanism is different with the dynamic and static whirlpool disk size of the second compression mechanism, and the output of three kinds of different refrigerating capacitys can be achieved in the opening and closing of cooperation support frame overhead gage, can be widely applied in various working environments, and structure is simple, it is at low cost.
Description
Technical field
The utility model relates to screw compressor fields, and in particular to a kind of screw compressor of variable displacement.
Background technique
Screw compressor is widely used in automobile since it has many advantages, such as that energy-efficient, noise is lower, runs smoothly
In industry.Screw compressor is mainly formed by the dynamic and static vortex of two digamma function equation scrollworks is mutually ratcheting.Air-breathing, compression,
During exhaust work, fixed scroll is fixed on the rack, and movable orbiting scroll is driven by crankshaft and restricted by anti-rotation mechanism, surrounds quiet whirlpool
The Plane Rotation of very little radius is done at disk basic circle center, and gas sucks the periphery of fixed scroll, and with the rotation of eccentric shaft, gas is dynamic
Quiet disk engagement is closed gradually to be compressed in several composed crescent compression chambers, then by the axial hole of fixed scroll central module
Continuously send.
It is in the prior art the refrigerating capacity of change screw compressor to adapt to different operating demand, usually selects digital-code type whirlpool
Revolve compressor or DC frequency-changing formula screw compressor.And digital-code type screw compressor be easy to cause the mistake of whirlpool disk in frequent opening and closing
Degree abrasion, causes the compressor service life to greatly shorten.DC frequency-changing formula screw compressor higher cost, need to additionally configure frequency control
Device.
Utility model content
Based on problem and deficiency described in background technique, the utility model is intended to provide that one kind is hardly damaged and cost is relatively low
Variable-flow screw compressor.
In order to achieve the above objectives, the utility model uses following technical scheme:
A kind of change displacement scroll compressor, the screw compressor include shell, upper end cover, lower cover, control box, turn
Axis, the first compression mechanism, the second compression mechanism, the upper end cover side wall offer first row port, and the lower cover side wall is opened
Equipped with second exhaust port；First compression mechanism includes the first fixed scroll, the first movable orbiting scroll, is opened at the top of first movable orbiting scroll
Equipped with first row port, first row port upper end is equipped with exhaust valve；Second compression mechanism includes the second fixed scroll, the
Two movable orbiting scrolls, the second movable orbiting scroll top offer second exhaust port, and the second exhaust port upper end is equipped with exhaust valve；It is described
Second fixed scroll scrollwork axial length is greater than first fixed scroll, and the second movable orbiting scroll scrollwork axial length is greater than described the
One movable orbiting scroll.
Preferably, first compression mechanism further includes the first support frame, the first gasket, is opened up on first support frame
There is the first venthole, first venthole two sidewalls offer accommodating cavity respectively, and two accommodating cavity bottom is respectively equipped with electricity
Magnet, an accommodating cavity is interior to be equipped with the first block, and first block end is equipped with magnet, is equipped with second in another accommodating cavity
Block, second block end are equipped with magnet.
Preferably, second compression mechanism further includes the second support frame, the second gasket, is opened up on second support frame
There is the second venthole, second venthole two sidewalls offer accommodating cavity respectively, and two accommodating cavity bottom is respectively equipped with electricity
Magnet, an accommodating cavity is interior to be equipped with the first block, and first block end is equipped with magnet, is equipped with second in another accommodating cavity
Block, second block end are equipped with magnet.
Preferably, controller, the electromagnetism in first compression mechanism and the second compression mechanism are equipped in the control box
Iron is electrically connected with the controller.
The beneficial effects of the utility model are: the first compression mechanism is different with the dynamic and static whirlpool disk size of the second compression mechanism,
Cooperate the opening and closing of support frame overhead gage that the output of three kinds of different refrigerating capacitys can be achieved, can be widely applied in various working environments,
And structure is simple, it is at low cost.
Detailed description of the invention
Fig. 1 is the utility model scroll compressor structure schematic diagram；
Fig. 2 is the utility model the first compression mechanism schematic diagram；
Fig. 3 is the utility model the second compression mechanism schematic diagram；
Fig. 4 is the utility model the first support frame partial schematic diagram；
Fig. 5 is the utility model the first support frame partial schematic diagram；
Fig. 6 is the utility model the second support frame partial schematic diagram；
Fig. 7 is the utility model the second support frame partial schematic diagram.
Description of symbols: shell 1, upper end cover 2, lower cover 3, control box 4, shaft 5, air inlet 6, controller 7, low pressure
Chamber 8, first row port 9, oil eliminator 10, second exhaust port 11, the first fixed scroll 12, the first gasket 13, the first venthole 14,
First support frame 15, the first axle sleeve 16, the first crankshaft 17, the first cross 18, the first movable orbiting scroll 19, first row stomata 20,
One high pressure chest 21, the second fixed scroll 22, the second venthole 23, the second axle sleeve 24, the second crankshaft 25, the second cross 26, second
Support frame 27, the second gasket 28, the second movable orbiting scroll 29, second row stomata 31, the second high pressure chest 32, electromagnet 33, magnet 34,
One block 35, accommodating cavity 36, the second block 37, exhaust valve 38.
Specific embodiment
The utility model is further described below in conjunction with the drawings and specific embodiments, but present embodiment is simultaneously
It is not limited to content below, arbitrarily can change and implement in the range of the purport of lossless the utility model.
As shown in Figure 1-3, the utility model screw compressor includes shell 1, upper end cover 2, lower cover 3, control box 4, turns
Axis 5, the first compression mechanism, the second compression mechanism, 1 side wall of shell offer air inlet 6, the control box 4 with it is described outer
The connection of 1 side wall of shell, controls in box 4 and is equipped with controller 7.1 upper end of shell and 2 company of being bolted of upper end cover
It connects, 1 lower end of shell is bolted to connection with the lower cover 3.2 side wall of upper end cover offers first row port
9, it is equipped with oil eliminator 10 at the first row port 9, above-mentioned 3 side wall of lower cover offers second exhaust port 11, and described second
Oil eliminator 10 is equipped at exhaust outlet 11.
As shown in Fig. 2, first compression mechanism include the first fixed scroll 12, the first movable orbiting scroll 19, the first support frame 15,
First gasket 13,12 upper end of the first fixed scroll are fixedly connected by pin shaft with the upper end cover 2.First support frame
15 lower ends are fixedly connected by pin shaft with 1 inner wall of shell.It is equipped between first fixed scroll 12 and the first support frame 15
First gasket 13, first fixed scroll 12 is interior to be equipped with the first movable orbiting scroll 19, the first fixed scroll 12 and the setting of the first movable orbiting scroll 19
In 13 side of the first gasket, the first cross 18 and the first support frame 15 are set to 13 other side of the first gasket.Gasket is by dynamic whirlpool
Disk is separated with support frame, and when screw compressor works, movable orbiting scroll is moved in gasket surface, to efficiently avoid movable orbiting scroll
With the contact wear of support frame.
The volume top end face of first movable orbiting scroll 19 open up it is fluted, the groove internal clearance be equipped with sealing ring, sealing ring
12 bottom surface of the first fixed scroll is abutted, the wrap tip face of first fixed scroll 12 opens up fluted, the groove
Internal clearance is equipped with sealing ring, and sealing ring abuts 19 bottom surface of the first movable orbiting scroll.
As schemed shown in 4-5, the first venthole 14,14 liang of first venthole are offered on first support frame 15
Side wall offers accommodating cavity 36 respectively, and two accommodating cavities, 36 bottom is respectively equipped with electromagnet 33, sets in an accommodating cavity 36
There is the first block 35,35 end of the first block is equipped with magnet 34, is equipped with the second block 37 in another accommodating cavity 36, and described the
Two blocks, 37 end is equipped with magnet 34；It is equipped with controller 7 in the control box 4, the electromagnet 33 is electrically connected with controller 7.
The electromagnet 33 generates magnetic force after being powered, controller 7 changes the current direction of electromagnet 33, to control electromagnetism
Iron 33 generates attraction or repulsive force to magnet 34.When the electromagnet 33 attracts magnet 34, first block 35 and the
Two blocks 37 slide into accommodating cavity 36 through magneticaction, and the first venthole 14 is in the open state at this time, and system refrigerant can be via
It is compressed in the compression chamber that first venthole 14 flows into first fixed scroll 12 and first movable orbiting scroll 19 is formed.
When the electromagnet 33 repels magnet 34, first block 35 and the second block 37 skid off appearance through magneticaction
Chamber 36 is set, 35 end face of the first block is mutually abutted with 37 end face of the second block, thus the first venthole 14 of closing, system is cold at this time
Matchmaker is blocked on outside the first venthole 14, since system refrigerant cannot be introduced into compression chamber, so that pressure of the whirlpool disk without gas
Contracting.
As shown in figure 3, second compression mechanism include the second fixed scroll 22, the second movable orbiting scroll 29, the second support frame 27,
Second gasket 28,22 upper end of the second fixed scroll are fixedly connected by pin shaft with the lower cover 3.Second support frame
27 lower ends are fixedly connected by pin shaft with 1 inner wall of shell.It is equipped between second fixed scroll 22 and the second support frame 27
Second gasket 28, second fixed scroll 22 is interior to be equipped with the second movable orbiting scroll 29, the second fixed scroll 22 and the setting of the second movable orbiting scroll 29
In 28 side of the second gasket, the second cross 26 and the second support frame 27 are set to 28 other side of the second gasket, and gasket is by dynamic whirlpool
Disk is separated with support frame.
The volume top end face of second movable orbiting scroll 29 open up it is fluted, the groove internal clearance be equipped with sealing ring, sealing ring
22 bottom surface of the second fixed scroll is abutted, the wrap tip face of second fixed scroll 22 opens up fluted, the groove
Internal clearance is equipped with sealing ring, and sealing ring abuts 29 bottom surface of the second movable orbiting scroll.
As schemed shown in 4-5, the second venthole 23,23 liang of second venthole are offered on second support frame 27
Side wall offers accommodating cavity 36 respectively, and two accommodating cavities, 36 bottom is respectively equipped with electromagnet 33, sets in an accommodating cavity 36
There is the first block 35,35 end of the first block is equipped with magnet 34, is equipped with the second block 37 in another accommodating cavity 36, and described the
Two blocks, 37 end is equipped with magnet 34, and the electromagnet 33 is electrically connected with controller 7.The block of second venthole, 23 two sides
Motion mode is identical as first venthole, 14 liang of side block blocks motion modes.
Second fixed scroll, the 22 scrollwork axial length is greater than first fixed scroll 12,29 scrollwork of the second movable orbiting scroll
Axial length is greater than first movable orbiting scroll 19, so that the compression that the first fixed scroll 12 and the first movable orbiting scroll 19 cooperatively form
Cavity volume is less than the compression chamber volume that second fixed scroll 22 and the second movable orbiting scroll 29 cooperatively form, thus the first compressor
Structure, the second compression mechanism can produce different refrigerating capacitys.Controller 7 controls the baffle of the first venthole 14 and the second venthole 23
When opening simultaneously, system refrigerant enters the first compression mechanism and the second compression mechanism, at this time the exportable maximum of screw compressor
Refrigerating capacity.The baffle that controller 7 controls the first venthole 14 is opened, the baffle of the second venthole 23 closure, system refrigerant only into
Enter the first compression mechanism, screw compressor exports minimum refrigerating capacity at this time.The baffle that controller 7 controls the first venthole 14 closes
It closes, the baffle of the second venthole 23 is opened, and system refrigerant only enters the second compression mechanism, and screw compressor exports medium system at this time
Cooling capacity, thus the utility model screw compressor can realize the different refrigerating capacitys of output.
As shown in Figure 1-3,5 upper end of shaft is rotatablely connected by sliding bearing and first support frame 15, it is described
5 lower end of shaft is rotatablely connected by sliding bearing and second support frame 27.Shaft 5 is driven by hollow motor to be rotated, institute
The rotor for stating hollow motor is fixedly connected with the shaft 5, and stator is fixedly connected with 1 inner wall of shell.
5 upper end of shaft is equipped with the first axle sleeve 16 integrally formed with the first crankshaft 17,17 end sleeve of the first crankshaft,
First axle sleeve 16 is fixed on 17 crankshaft end of the first crankshaft by spring arch clasp.First movable orbiting scroll, 19 bottom passes through rolling
Needle bearing and first axle sleeve 16 rotation are socketed, and first cross 18 is set to the first support frame 15 and the first movable orbiting scroll
Between 19.
5 lower end of shaft is equipped with the second axle sleeve 24 integrally formed with the second crankshaft 25,25 end sleeve of the second crankshaft,
Second axle sleeve 24 is fixed on 25 crankshaft end of the second crankshaft by spring arch clasp.Second movable orbiting scroll, 29 bottom passes through rolling
Needle bearing and second axle sleeve 24 rotation are socketed, and second cross 26 is set to the second support frame 27 and the second movable orbiting scroll
Between 29.
First row stomata 20 is offered at the top of first fixed scroll 12, exhaust valve 8 passes through screw and the first fixed scroll 12
Top is fixedly connected, and the exhaust valve 8 is arranged above first row stomata 20.Second is offered at the top of second fixed scroll 22
Gas vent 31, by being fixedly connected at the top of screw and the second fixed scroll 22, the exhaust valve 8 is arranged in second exhaust exhaust valve 8
31 top of hole.
The upper end cover 2 is enclosed the first high pressure chest 21,1 inner wall of shell and the first support with first fixed scroll 2
Frame 15, the second support frame 27 are enclosed low pressure chamber 8.The mixed gas of system refrigerant and lubricating oil by the first venthole 14 into
Enter in the first compression mechanism, after the first movable orbiting scroll 12 and the compression of the first fixed scroll 19, high pressure gas enters the first high pressure chest 21
Interior, effect of the mist of oil through oil eliminator 10 in high pressure chest mixed gas becomes oil droplet and falls to 12 surface of the first fixed scroll.
The lower cover 3 and second fixed scroll 22 are enclosed the second high pressure chest 32, system refrigerant and lubricating oil
Mixed gas is entered in the second compression mechanism by the second venthole 23, is compressed through the second movable orbiting scroll 22 and the second fixed scroll 29
Afterwards, high pressure gas enters in the second high pressure chest 32, effect of the mist of oil through oil eliminator 10 in high pressure chest mixed gas, becomes oil
Drop falls to 3 surface of lower cover.
The utility model is described in detail above, its object is to allow the personage for being familiar with this field technology can be much of that
It solves the content of the utility model and is implemented, do not limit the protection scope of the present invention, it is all practical according to this
Equivalent change or modification made by novel Spirit Essence should all cover within the protection scope of the present utility model.
Claims (4)
1. a kind of change displacement scroll compressor, it is characterised in that: the screw compressor include shell (1), upper end cover (2),
Lower cover (3), control box (4), shaft (5), the first compression mechanism, the second compression mechanism, upper end cover (2) side wall offer
First row port (9), lower cover (3) side wall offer second exhaust port (11)；First compression mechanism includes first
Fixed scroll (12), the first movable orbiting scroll (19), the first movable orbiting scroll (19) top offer first row stomata (20), and described first
Gas vent (20) upper end is equipped with exhaust valve (38)；Second compression mechanism includes the second fixed scroll (22), the second movable orbiting scroll
(29), it is offered second row stomata (31) at the top of second movable orbiting scroll (29), second row stomata (31) upper end is equipped with row
Air valve (38)；Second fixed scroll (22) the scrollwork axial length is greater than first fixed scroll (12), second movable orbiting scroll
(29) scrollwork axial length is greater than first movable orbiting scroll (19).
2. becoming displacement scroll compressor according to claim 1, it is characterised in that: first compression mechanism further includes
One support frame (15), the first gasket (13) offer the first venthole (14) on first support frame (15), and described first is logical
Stomata (14) two sidewalls offer accommodating cavity (36) respectively, and two accommodating cavity (36) bottom is respectively equipped with electromagnet (33), institute
It states in an accommodating cavity (36) and is equipped with the first block (35), the first block (35) end is equipped with magnet (34), another accommodating cavity
(36) the second block (37) are equipped in, the second block (37) end is equipped with magnet (34).
3. becoming displacement scroll compressor according to claim 2, it is characterised in that: second compression mechanism further includes
Two support frames (27), the second gasket (28) offer the second venthole (23) on second support frame (27), and described second is logical
Stomata (23) two sidewalls offer accommodating cavity (36) respectively, and two accommodating cavity (36) bottom is respectively equipped with electromagnet (33), institute
It states in an accommodating cavity (36) and is equipped with the first block (35), the first block (35) end is equipped with magnet (34), another accommodating cavity
(36) the second block (37) are equipped in, the second block (37) end is equipped with magnet (34).
4. becoming displacement scroll compressor according to claim 3, it is characterised in that: be equipped with control in the control box (4)
Device (7), the electromagnet (33) in first compression mechanism and the second compression mechanism are electrically connected with the controller (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820653125.8U CN208348058U (en) | 2018-05-03 | 2018-05-03 | A kind of change displacement scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820653125.8U CN208348058U (en) | 2018-05-03 | 2018-05-03 | A kind of change displacement scroll compressor |
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| Publication Number | Publication Date |
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| CN208348058U true CN208348058U (en) | 2019-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820653125.8U Active CN208348058U (en) | 2018-05-03 | 2018-05-03 | A kind of change displacement scroll compressor |
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| CN (1) | CN208348058U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374788A (en) * | 2018-05-03 | 2018-08-07 | 宁波汇峰聚威科技股份有限公司 | A kind of change displacement scroll compressor |
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2018
- 2018-05-03 CN CN201820653125.8U patent/CN208348058U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374788A (en) * | 2018-05-03 | 2018-08-07 | 宁波汇峰聚威科技股份有限公司 | A kind of change displacement scroll compressor |
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