CN107859621A - Screw compressor and there is its air conditioner - Google Patents
Screw compressor and there is its air conditioner Download PDFInfo
- Publication number
- CN107859621A CN107859621A CN201711062819.0A CN201711062819A CN107859621A CN 107859621 A CN107859621 A CN 107859621A CN 201711062819 A CN201711062819 A CN 201711062819A CN 107859621 A CN107859621 A CN 107859621A
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- Prior art keywords
- face
- screw compressor
- rotating shaft
- sealing structure
- support
- Prior art date
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- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 72
- 238000004891 communication Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
-
- 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
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine
- F04C27/009—Shaft sealings specially adapted for pumps
Abstract
The invention provides a kind of screw compressor and there is its air conditioner, wherein, screw compressor includes：Support, back pressure cavity is formed between support and orbiter, and the one end of support away from orbiter has first end face；Rotating shaft, penetrate rotatably support；Sealing structure, it is connected in the circumference of rotating shaft with rotating shaft sealing, and the surface towards support side of sealing structure is tightly connected with first end face.Technical scheme efficiently solves the problem of back pressure cavity sealing effectiveness difference in the prior art.
Description
Technical field
The present invention relates to field of air conditioning, in particular to a kind of screw compressor and has its air conditioner.
Background technology
Screw compressor as a kind of energy-efficient compressor, compared to other compressors have efficiency is high, noise it is small with
And the advantage that reliability is high, it is widely used in commercial combined air conditioners refrigeration system.And as the big of new-energy automobile is pushed
Extensively, electric scroll compressor obtains new application in electric automobile air-conditioning system.Horizontal, the lighter and handier knot of more efficient efficiency
It is advantageous excellent that structure design, lower noise level all make it that electric scroll compressor has in electric automobile air conditioner application
Gesture.Good pump housing sealing is most important to the Performance And Reliability of screw compressor, and its pump housing sealing principle is in dynamic vortex
Disk rear side forms a back pressure cavity, pushes orbiter to fixed scroll side by axial gas force in back pressure cavity, so as to real
Effective sealing between existing pump housing axial direction.
Based on the principle of above-mentioned this back pressure design, in order to obtain suitable back-pressure, effective sealing of back pressure cavity shows
Obtain particularly important.For in the sealing structure of prior art back pressure cavity, the axial seal between back pressure cavity and drive shaft is rotation
Turn sealing, sealing reliability requires higher.Axle envelope can use more conventional axle envelope during relatively low back-pressure (being less than 0.5MPa)
Seal, and shaft seal structure needs to use more high voltage bearing labyrinth during greater back-pressure pressure (being more than 0.5MPa), at this, such as
The seal of stainless steel casing+PTFE kit forms, seal cost is high, and process and assemble size requires high, adds model machine
Production cost.
The content of the invention
The present invention is intended to provide a kind of screw compressor and there is its air conditioner, it is close to solve back pressure cavity in the prior art
The problem of sealing effect difference.
To achieve these goals, according to an aspect of the invention, there is provided a kind of screw compressor, including：Support,
Back pressure cavity is formed between support and the orbiter of screw compressor, and the one end of support away from orbiter has first end
Face；Rotating shaft, penetrate rotatably support；Sealing structure, it is connected in the circumference of rotating shaft with rotating shaft sealing, and the court of sealing structure
It is tightly connected to the surface and first end face of support side.
Further, sealing structure includes：Annular base, annular base have the second end face coordinated with first end face,
The inner ring surface of annular base is connected with rotating shaft sealing；Seal, it is arranged between first end face and second end face.
Further, annular groove is provided with least one in first end face and/or second end face, seal is arranged on ring
In groove.
Further, first end face and second end face are set perpendicular to the axis of rotating shaft.
Further, sealing structure has the suction muffler of pressure release path, pressure release communication back pressure cavity and screw compressor,
Pressure valve is provided with pressure release path, pressure valve has the detent position for blocking pressure release path and the conducting for avoiding pressure release path
Position.
Further, pressure release path include the first communicating passage for connect with back pressure cavity and connect the first communicating passage and
Second communicating passage of suction muffler, when pressure valve is in detent position, cut off the first communicating passage and the second communicating passage
Connected state.
Further, the first communicating passage is radially arranged along the axially arranged of rotating shaft, the second communicating passage along rotating shaft.
Further, screw compressor also includes balance weight, and balance weight is integrally formed with annular base, and pressure valve is arranged on
In balance weight.
Further, sealing structure and rotating shaft are integrally formed setting.
According to another aspect of the present invention, there is provided a kind of air conditioner, including compressor, compressor are above-mentioned scroll compression
Contracting machine.
Apply the technical scheme of the present invention, the first end face of sealing structure and support is tightly connected, by original rotary shaft
Rotary end surface sealing is changed to dynamic sealing.Sealing ring is arranged on to outer surface and the branch of rotating shaft compared to axial rotary dynamic sealing
Between two curved surfaces of inner surface of frame, sealing structure is arranged in first end face by technical scheme, even in rotating shaft
The axis of sealing structure and the axis of rotating shaft are offset during rotation, sealing structure still ensure that with first end face it
Between sealing effectiveness, to ensure back pressure cavity sealed reliable.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the cross section structure diagram of the embodiment one of the screw compressor according to the present invention；
Fig. 2 shows close-up schematic view at the A of Fig. 1 screw compressor；
Fig. 3 shows close-up schematic view at the B of Fig. 2 screw compressor；
Fig. 4 shows the sealing structure of Fig. 1 screw compressor and the structural representation under balance weight first angle；
Fig. 5 shows the sealing structure of Fig. 1 screw compressor and the structural representation under balance weight second angle；
Fig. 6 shows Fig. 4 sealing structure and the cross section structure diagram of balance weight；And
Fig. 7 shows the rotating shaft of embodiment two and the structural representation of sealing structure of the screw compressor according to the present invention
Figure.
Wherein, above-mentioned accompanying drawing marks including the following drawings：
1st, exhaust outlet；2nd, nose cover；3rd, fixed scroll；4th, orbiter；5th, eccentric bushing；6th, support；7th, sealing structure；8、
Rotating shaft；9th, motor；10th, air entry；11st, supplementary bearing；12nd, secondary balance weight；13rd, casing；14th, base bearing；15th, back pressure cavity；
16th, back pressure cavity wear-resistant gasket；17th, Moving plate driving bearing；18th, quiet disk back pressure pilot path；19th, quiet disk exhaust side sealing ring；20、
Oil-gas Separation part；21st, seal；22nd, pressure valve；221st, steel ball；222nd, spring；223rd, fixture；61st, first end face；71st,
One communicating passage；72nd, the second communicating passage；73rd, pilot hole；74th, annular groove；75th, inner ring surface；76th, balance weight；77th, outer shroud end face；
78th, inner ring end face；81st, outer shroud end face；82nd, annular groove.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only some embodiments of the present application, rather than whole embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the application and its application or makes
Any restrictions.Based on the embodiment in the application, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belong to the scope of the application protection.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
Unless specifically stated otherwise, the part and positioned opposite, the digital table of step otherwise illustrated in these embodiments
Up to the unlimited scope of the present application processed of formula and numerical value.Simultaneously, it should be appreciated that for the ease of description, each portion shown in accompanying drawing
The size divided not is to be drawn according to the proportionate relationship of reality.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, the technology, method and apparatus should be considered as authorizing explanation
A part for book.In shown here and discussion all examples, any occurrence should be construed as merely exemplary, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should be noted that：Similar label
Similar terms is represented in following accompanying drawing with letter, therefore, once it is defined in a certain Xiang Yi accompanying drawing, then subsequent attached
It need not be further discussed in figure.
Embodiment one：
As shown in figure 1, the screw compressor of the present embodiment includes support 6, rotating shaft 8 and sealing structure 7.Wherein, support 6 with
Back pressure cavity 15 is formed between orbiter 4, and the one end of support 6 away from orbiter 4 has first end face 61.Rotating shaft 8 can turn
Support 6 is passed through dynamicly.Sealing structure 7 is tightly connected in the circumference of rotating shaft 8 with rotating shaft 8, and sealing structure 7 towards support 6
The surface of side is tightly connected with first end face 61.Motor 9 is built in casing 13 and rotated with drive shaft 8, and then band
The dynamic eccentric motion of eccentric bushing 5, eccentric bushing 5 drive the relatively quiet vortex of orbiter 4 by matched Moving plate driving bearing 17
Disk 3 makees cycle reciprocal eccentric motion, completes continuous air-breathing, compression, exhaust process to gas.In order to form the axle of drive shaft
System's balance, with one heart and base bearing 14 and supplementary bearing 11 are coaxially disposed at the head and the tail both ends of rotating shaft 8.In order to maintain orbiter 4 tight
The axial seal that compression chamber is realized on fixed scroll 3 is attached to, intermediate pressure is set in the support 6 at the back side of orbiter 4
Back pressure cavity 15,
Using the technical scheme of the present embodiment, sealing structure 7 and the first end face 61 of support 6 are tightly connected, will be original
Axial rotary dynamic sealing is changed to rotary end surface sealing.Sealing ring is arranged on to the appearance of rotating shaft compared to axial rotary dynamic sealing
Between face and two curved surfaces of inner surface of support, sealing structure is arranged in first end face 61 by technical scheme, i.e.,
Offset the axis of sealing structure 7 and the axis of rotating shaft 8 during axis of rotation, sealing structure 7 still ensures that
Sealing effectiveness between first end face 61, to ensure the sealed reliable of back pressure cavity 15.
Specifically, as shown in Figures 2 to 4, the sealing structure 7 of the present embodiment includes annular base and seal 21.Wherein,
Annular base has the second end face coordinated with first end face 61, and inner ring surface 75 and the rotating shaft 8 of annular base are tightly connected, and make the back of the body
Gas in pressure chamber 15 will not be spilt from the gap between rotating shaft 8 of annular base.Seal 21 is arranged on first end face 61
Between second end face, to avoid the gas in back pressure cavity 15 from being spilt from the gap between first end face 61 and second end face.
Specifically, the sealing structure 7 of the present embodiment is interference fitted on location structure with rotating shaft 8 is tightly connected with realizing.
Annular groove 74 is provided with second end face, seal 21 is arranged in annular groove 74.Seal 21 is in its natural state all the time with first
End face 61 is bonded, and can make seal 21 in its natural state towards branch in the elastomeric element of 21 underlay of seal one in actual applications
The first end face 61 of frame 6 keeps certain pretension adhesive force.Or seal 21 itself has certain elasticity, is being assemblied in annular groove
Certain elastic deformation is produced when between 74 and first end face 61 to keep between first end face there is certain pretension to be bonded
Power.The sealing structure being so designed that, quick in back pressure cavity in compressor start setting pressure can be realized, accelerate compressor
Reach steady operational status.
In other embodiment not shown in figure, annular groove can also be arranged in first end face, or in first end face
Be respectively provided with annular groove in second end face, and seal is arranged in the space that two annular grooves are formed, to realize sealing.
Preferably, as shown in figure 1, the first end face 61 and second end face of the present embodiment are set perpendicular to the axis of rotating shaft 8.
Further, as shown in Figures 3 to 6, the sealing structure 7 of the present embodiment has pressure release path, pressure release communication
The suction muffler of back pressure cavity 15 and screw compressor.It is provided with pressure valve 22 in pressure release path, pressure valve 22, which has, to be blocked pressure release and lead to
The detent position on road and the conduction position for avoiding pressure release path.Specifically, as shown in Figures 2 and 3, pressure valve 22 includes steel ball
221st, spring 222 and fixture 223, wherein steel ball 221 are arranged in pressure release path, and fixture 223 is arranged in pilot hole 73
Steel ball 221 is set not dropped out from pressure release path, spring 222 is arranged between fixture 223 and steel ball 221 to provide default pressure
Power.When the pressure in back pressure cavity 15 is more than preset pressure, steel ball 221 moves in the presence of pressure difference to conduction position, makes system
Cryogen can discharge from back pressure cavity 15 and flow to suction muffler；When the pressure of back pressure cavity 15 is reduced to preset pressure, steel ball 221 exists
Detent position is moved back in the presence of spring 222, seals back pressure cavity 15.
Further, as shown in figure 3, pressure release path includes the first communicating passage 71 connected with back pressure cavity 15 and connection
Second communicating passage 72 of the first communicating passage 71 and suction muffler, when pressure valve is in detent position, the connection of cut-out first is logical
The connected state of the communicating passage 72 of road 71 and second.First communicating passage 71 is along the axially arranged of rotating shaft 8, the second communicating passage 72
Along being radially arranged for rotating shaft 8.The refrigerant during opening of pressure valve 22 is set quickly to flow out under the action of the centrifugal.It is so designed that
It is advantageous in that, as compressor frequency rises, the lubricating oil entered by quiet disk back pressure pilot path 18 in back pressure cavity 15 increases,
Rotating speed is bigger, and the inside main bearing 14 of back pressure cavity 15 and the frictional heat of Moving plate driving bearing 17 are bigger, although there is more lubricating oil to enter
The cooling bearing of back pressure cavity 15, but the lubricating oil such as back pressure cavity 15 can not accelerate oily circulation rate, lubrication by outside aerial drainage in time
Oil temperature can steeply rise, and lubricant effect can reduce, and compressor long-term reliability is necessarily impacted.The pressure valve 22 of the present embodiment
Structure, the accurate control to back pressure cavity pressure can not only be realized, while also have and let out with the positively related active of compressor frequency
Function is flowed, frequency is bigger, and aerial drainage speed is faster.
Further, as it can be seen in figures 5 and 6, the screw compressor of the present embodiment also includes balance weight 76, balance weight 76 and ring
Shape matrix is integrally formed, and pressure valve is arranged in balance weight 76.By the way that shafting balancing block 76 is designed in sealing structure 7, make
It is more compact to obtain compressor shafting design, while decreases shafting assembly technology.Due to wanting for balanced structure itself axial dimension
Ask, the balance weight 76 of the present embodiment is in semi-circular shape, is easy to set pressure valve 22 as described above.
Further, second end face is divided into outer shroud end face 77 and inner ring end face 78 by annular groove 74, as shown in fig. 6, this reality
Apply axis direction of the outer shroud end face 77 of example along rotating shaft 8 and protrude from inner ring end face 78, make inner ring end face 78 and first end face 61 it
Between leave larger gap, the fluid being beneficial in back pressure cavity 15 can be with more slight drag by pressure valve 22, with timely pressure release
To outside, the fluid in back pressure cavity 15 is avoided to produce larger pressure drop after by the gas passage in addition to pressure valve 22.Above-mentioned knot
Structure enables pressure valve 22 more accurately to control Pressure in Back-pressure Cavity.
Embodiment two：
The screw compressor of embodiment two is the connected mode of rotating shaft 8 and sealing structure 7 with the difference of embodiment one.Such as
Shown in Fig. 7, the rotating shaft 8 of the screw compressor of embodiment two and sealing structure 7 are formed in one structure, rotating shaft 8 and sealing structure 7
Between need not be interference fitted or other forms connection with realize sealing, obtained on the premise of processing cost is not dramatically increased
Higher assembly process process.
In the present embodiment, the first communicating passage 71 of sealing structure 7 is also logical along the axially arranged of rotating shaft 8, the second connection
Also being radially arranged along rotating shaft 8 of road 72.Annular groove 82 is arranged in the second end face of sealing structure 7, and annular groove 82 divides second end face
Outer shroud end face 81 and inner ring end face are cut into, said structure is similar to the structure of embodiment one.
In addition, in the present embodiment, balance block structure is integrated not in rotating shaft 8.
Present invention also offers a kind of air conditioner, includes compressor according to the air conditioner (not shown) of the present embodiment,
Compressor is the screw compressor with above-mentioned technical characteristic.The air conditioner of the present embodiment has the advantages of sealed reliable.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：
Sealing structure and the first end face of support are tightly connected, and original axial rotary dynamic sealing is changed into rotary end surface
Sealing.Compared to axial rotary dynamic sealing by sealing ring be arranged on rotating shaft outer surface and support two curved surfaces of inner surface it
Between, sealing structure is arranged in first end face by technical scheme, the sealing structure during axis of rotation
Axis and the axis of rotating shaft offset, sealing structure still ensures that the sealing effectiveness between first end face, to ensure
Back pressure cavity sealed reliable.
In the description of the present application, it is to be understood that the noun of locality such as " forward and backward, upper and lower, left and right ", " laterally, vertical,
Vertically, orientation or position relationship indicated by level " and " top, bottom " etc. are normally based on orientation or position shown in the drawings and closed
System, it is for only for ease of description the application and simplifies description, in the case where not making opposite explanation, these nouns of locality do not indicate that
There must be specific orientation with the device or element for implying meaning or with specific azimuth configuration and operation, therefore can not manage
Solve as the limitation to the application protection domain；The noun of locality " inside and outside " refers to relative to inside and outside each part profile in itself.
For the ease of description, space relative terms can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.For example, if the device in accompanying drawing is squeezed, it is described as " in other devices
It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and
And respective explanations are made to the relative description in space used herein above.
Furthermore, it is necessary to explanation, limits parts, it is only for be easy to using the word such as " first ", " second "
Corresponding parts to be distinguished, do not have Stated otherwise such as, above-mentioned word does not have particular meaning, therefore it is not intended that to this
Apply for the limitation of protection domain.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
- A kind of 1. screw compressor, it is characterised in that including：Support (6), back pressure cavity (15), and the branch are formed between the support (6) and the orbiter of the screw compressor The one end of frame (6) away from the orbiter has first end face (61)；Rotating shaft (8), penetrate rotatably the support (6)；Sealing structure (7), it is tightly connected in the circumference of the rotating shaft (8) with the rotating shaft (8), and the sealing structure (7) The surface and the first end face (61) of the direction support (6) side be tightly connected.
- 2. screw compressor according to claim 1, it is characterised in that the sealing structure (7) includes：Annular base, the annular base have the second end face coordinated with the first end face (61), the annular base Inner ring surface is tightly connected with the rotating shaft (8)；Seal (21), it is arranged between the first end face (61) and the second end face.
- 3. screw compressor according to claim 2, it is characterised in that the first end face (61) and/or described second Annular groove is provided with least one in end face, the seal (21) is arranged in the annular groove.
- 4. screw compressor according to claim 2, it is characterised in that the first end face (61) and the second end face Axis perpendicular to the rotating shaft (8) is set.
- 5. screw compressor according to claim 2, it is characterised in that the sealing structure (7) has pressure release path, institute The suction muffler of back pressure cavity (15) and the screw compressor described in pressure release communication is stated, pressure is provided with the pressure release path Valve, the pressure valve have the detent position for blocking the pressure release path and the conduction position for avoiding the pressure release path.
- 6. screw compressor according to claim 5, it is characterised in that the pressure release path includes and the back pressure cavity (15) the first communicating passage (71) of connection and connection first communicating passage (71) connect with the second of the suction muffler Passage (72), when the pressure valve is in the detent position, cuts off first communicating passage (71) and described second and connect The connected state of circulation passage (72).
- 7. screw compressor according to claim 6, it is characterised in that first communicating passage (71) is along the rotating shaft (8) axially arranged, the second communicating passage (72) being radially arranged along the rotating shaft (8).
- 8. screw compressor according to claim 5, it is characterised in that the screw compressor also includes balance weight (76), the balance weight (76) is integrally formed with the annular base, and the pressure valve is arranged in the balance weight (76).
- 9. screw compressor according to claim 1, it is characterised in that the sealing structure (7) and the rotating shaft (8) one Body formed setting.
- 10. a kind of air conditioner, including compressor, it is characterised in that the compressor is any one of claim 1 to 9 Screw compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711062819.0A CN107859621B (en) | 2017-10-31 | 2017-10-31 | Scroll compressor and air conditioner with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711062819.0A CN107859621B (en) | 2017-10-31 | 2017-10-31 | Scroll compressor and air conditioner with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107859621A true CN107859621A (en) | 2018-03-30 |
| CN107859621B CN107859621B (en) | 2023-10-27 |
Family
ID=61700450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711062819.0A Active CN107859621B (en) | 2017-10-31 | 2017-10-31 | Scroll compressor and air conditioner with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107859621B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1113547A (en) * | 1994-05-04 | 1995-12-20 | 科普兰公司 | Scroll machine with reverse rotation protection |
| JPH10153186A (en) * | 1996-11-25 | 1998-06-09 | Hitachi Ltd | Scroll compressor |
| JP2010138758A (en) * | 2008-12-10 | 2010-06-24 | Hitachi Appliances Inc | Scroll compressor |
| CN103174648A (en) * | 2011-12-20 | 2013-06-26 | 上海三电贝洱汽车空调有限公司 | Scroll compressor |
| JP2013241853A (en) * | 2012-05-18 | 2013-12-05 | Panasonic Corp | Electric compressor |
| CN207420857U (en) * | 2017-10-31 | 2018-05-29 | 珠海格力电器股份有限公司 | Screw compressor and with its air conditioner |
-
2017
- 2017-10-31 CN CN201711062819.0A patent/CN107859621B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1113547A (en) * | 1994-05-04 | 1995-12-20 | 科普兰公司 | Scroll machine with reverse rotation protection |
| JPH10153186A (en) * | 1996-11-25 | 1998-06-09 | Hitachi Ltd | Scroll compressor |
| JP2010138758A (en) * | 2008-12-10 | 2010-06-24 | Hitachi Appliances Inc | Scroll compressor |
| CN103174648A (en) * | 2011-12-20 | 2013-06-26 | 上海三电贝洱汽车空调有限公司 | Scroll compressor |
| JP2013241853A (en) * | 2012-05-18 | 2013-12-05 | Panasonic Corp | Electric compressor |
| CN207420857U (en) * | 2017-10-31 | 2018-05-29 | 珠海格力电器股份有限公司 | Screw compressor and with its air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107859621B (en) | 2023-10-27 |
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