CN101205910A - Scroll compressor having function of reducing lubricating oil resistance - Google Patents
Scroll compressor having function of reducing lubricating oil resistance Download PDFInfo
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- CN101205910A CN101205910A CNA2006101304599A CN200610130459A CN101205910A CN 101205910 A CN101205910 A CN 101205910A CN A2006101304599 A CNA2006101304599 A CN A2006101304599A CN 200610130459 A CN200610130459 A CN 200610130459A CN 101205910 A CN101205910 A CN 101205910A
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- lubricant oil
- protruding key
- scroll compressor
- accepting groove
- avoid
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Abstract
The invention relates to a scroll compressor, in particular to the scroll compressor which can prevent the input power from increasing and the performance and efficiency from declining because of the impedance of lubrication, and has the function of reducing the impedance of the lubrication. The scroll compressor of the invention comprises: a shell which is provided with a hermetic receiving space inside; a frame which is fixedly arranged inside the shell; a moving turbine disc which is combined with a fixing turbine disc which is fixedly arranged inside the frame to form two continuous moving compression chambers in pairs. The invention is characterized in that the scroll compressor with the function of reducing the impedance of the lubrication designs a lubrication avoidance slot which is communicated with an outlet at the inner periphery of a convex receiving slot, in order to lead that the lubrication can avoid in the convex key receiving slot which can accept a convex key part at the lower part of the moving turbine disc, thereby reducing the impedance of the lubrication while the compressor operating, and improving the performance and the efficiency of the compressor.
Description
Technical field
The present invention relates to scroll compressor, in more detail, is about preventing to make because of the lubricant oil impedance scroll compressor that reduces the lubricant oil impedance function that has of input rising and performance and decrease in efficiency.
Background technique
Accompanying drawing 1 is the sectional arrangement drawing of scroll compressor structure in the past.
As shown in Figure 1, scroll compressor includes in the past: have airtight containing space in inside and in order to suck and to discharge cold media air and possess the casing 11 of sucking pipe SP and outlet pipe DP in a side; Be fixed on the casing 11 inner upper bracket 12 and the lower bracket 13 of both sides up and down separately; Be installed in the drive motor 14 that produces rotating force between upper bracket 12 and the lower bracket 13; Be pressed into the rotor 14b center of drive motor 14, and be combined in the running shaft 17 that transmits drive motor 14 rotating forces on the movable orbiting scroll 16 after running through upper bracket 12; Possess eddy current shape scrollwork 15a, and at the hard-wired static vortex disk 15 in upper bracket 12 tops; Possess eddy current shape scrollwork 16a, and form two paired pressing chamber P that move continuously, static vortex disk 15 is done relative motion and the movable orbiting scroll 16 of compression refrigerant in order to combine with static vortex disk 15; The cross connecting ring (Oldham ' s ring) 18 that is installed in rotation movable orbiting scroll 16 when preventing between movable orbiting scroll 16 and the upper bracket 12 that movable orbiting scroll 16 from circling round constitutes.
The central authorities of upper bracket 12 possess the axis hole 12a of radial support running shaft 17, and can circumnutation for the protruding key 16b of portion that makes movable orbiting scroll 16, are formed with protruding key accepting groove 12b in the expansion of the upper end portion of axis hole 12a.
Running shaft 17 is pressed in the rotor 14b of drive motor 14, it is supported on upper bracket 12 and the lower bracket 13 both sides up and down separately, and after aspirating the casing 11 bottom lubricant oil that come up, lubricate each bearing surface, portion is along axially having long oil duct 17a within it.
The scrollwork 15a that forms two paired pressing chamber P constitutes with the eddy current shape in the runner plate portion bottom surface of static vortex disk 15; In order to suck to pressing chamber P, possesses suction port (not shown) in the side of runner plate portion be drawn into the refrigerant that sucks in the compression volume Sps by sucking pipe SP; For the pressurized gas in the pressing chamber P is discharged to discharging compression volume Spd, upper central possesses exhaust port 15b in runner plate portion.
In addition, for opening and closing exhaust port 15b, selectivity prevents the cold media air adverse current, outfit one-way valve 20 on static vortex disk 15.The inner space of casing 11 is divided into by static vortex disk 15 discharges compression volume Spd and sucks compression volume Sps.
Possess the eddy current shape scrollwork 16a that forms two paired pressing chamber P with the scrollwork 15a of static vortex disk 15 above the runner plate portion of movable orbiting scroll 16, possessing in bottom surface central authorities of runner plate portion has the protruding key 16b of portion that combines with running shaft 17 and accept drive motor 14 power.In addition, the protruding key 16b of portion is inserted in the protruding key accepting groove 12b of upper bracket 12 and does circumnutation.
The stator that unaccounted symbol 14a is a drive motor 14 in the accompanying drawing, 11a are the upper caps that hides casing 11 tops.
Describe the operation of the scroll compressor in the past of structure as mentioned above below in detail.
Turn-on power drive motor 14, then running shaft 17 rotates with the rotor 14b of drive motor 14, and movable orbiting scroll 16 is being that radius of gyration is done circumnutation with the eccentric distance on upper bracket 12 under the effect of cross connecting ring 18 thus.Thus, at the scrollwork 15a of movable orbiting scroll 16 and static vortex disk 15, form a pair of pressing chamber P between the 16a continuously.Pressing chamber P moves to the center because of movable orbiting scroll 16 continues circumnutation, and volume reduces, and can suck, compresses and discharge cold media air thus continuously.
Here, cold media air flows into to suck behind the compression volume Sps to enter in the pressing chamber P by suction port through sucking pipe SP and is compressed, and the exhaust port 15b by static vortex disk 15 discharges to discharging compression volume Spd then.At last, cold media air is discharged to refrigerating circulation system (not shown) through outlet pipe DP.
In addition, during running shaft 17 high speed rotating, lubricant oil oil duct 17a through running shaft 17 under centrifugal action rises to the upper end.At this moment, the axis hole 12a of part oil lubrication upper bracket 12, a part of in addition lubricant oil supply to the thrust shaft bearing surface of lubricated movable orbiting scroll 16 between the thrust shaft bearing surface of the thrust shaft bearing surface of movable orbiting scroll 16 and upper bracket 12 and the thrust shaft bearing surface of upper bracket 12.
But, in the scroll compressor in the past, because of running shaft 17 rotation movable orbiting scrolls 16 are done circumnutation, the lubricant oil that is stored in the protruding key accepting groove 12b along oil duct 17a rising is compressed by the protruding key 16b of portion of movable orbiting scroll 16, at this moment because of compression load takes place in the lubricant oil impedance, exist input power to increase and the shortcoming of performance and decrease in efficiency thus.
Summary of the invention
The present invention invents for the shortcoming that solves above-mentioned prior art, its purpose is, a kind of scroll compressor that reduces the lubricant oil impedance function that has is provided, prevents to rise, and can prevent to make performance and decrease in efficiency because of above-mentioned impedance because of the lubricant oil impedance makes input power.
For the attainment of one's purpose, scroll compressor of the present invention includes: inside has the casing of airtight containing space; The frame (comprising upper bracket, lower bracket) of installing in the internal fixation of casing; Combine with the static vortex disk that is fixedly mounted on frame inside and form the movable orbiting scroll of two paired pressing chambers that move continuously; The protruding key portion of movable orbiting scroll bottom; The protruding key portion accepting groove that the axis hole upper end expansion of upper bracket central authorities forms constitutes, it is characterized in that, for lubricant oil is avoided being positioned in the protruding key accepting groove of accommodating movable orbiting scroll bottom protruding key portion on the frame, possesses the lubricant oil slot to avoid at the inner peripheral surface of protruding key accepting groove.
Above-mentioned lubricant oil slot to avoid is that circumferencial direction along protruding key accepting groove is to whole formation.
In addition, possess oil drainage hole, and have at least a part to be communicated with in the lubricant oil slot to avoid with oil drainage hole at the inner peripheral surface of protruding key accepting groove.
Advantage and good effect: of the present invention have the scroll compressor that reduces the lubricant oil impedance function and have following effect: a part of lubricant oil in the above-mentioned protruding key accepting groove can be avoided in the lubricant oil slot to avoid of protruding key accepting groove inner peripheral surface, so the input function rising and the performance and the decrease in efficiency problem that take place because of the lubricant oil impedance that can prevent that existing scroll compressor from existing.
Description of drawings
Fig. 1 is the construction profile of scroll compressor in the past.
Fig. 2 is the scroll compressor construction profile that reduces the lubricant oil impedance function that has of the present invention.
Fig. 3 is the enlarged view of Fig. 2 significant points.
Fig. 4 illustrates the upper bracket structure oblique drawing that possesses the lubricant oil slot to avoid in the scroll compressor that reduces the lubricant oil impedance function that has of the present invention.
The explanation of accompanying drawing major component symbol
111: casing 112: upper bracket
112b: protruding key accepting groove 112c: oil drainage hole
112d: lubricant oil slot to avoid 113: lower bracket
114: drive motor 115: static vortex disk
116: movable orbiting scroll 116b: protruding key portion
117: running shaft
Embodiment
Describe the present invention in detail below in conjunction with accompanying drawing.
Fig. 2 is the scroll compressor construction profile that reduces the lubricant oil impedance function that has of the present invention.Fig. 3 is the enlarged view of Fig. 2 significant points.Fig. 4 illustrates the upper bracket structure oblique drawing that possesses the lubricant oil slot to avoid in the scroll compressor that reduces the lubricant oil impedance function that has of the present invention.
Illustrate below in the process of the present invention, omit specifying disclosed function and structure for simple and clear main points of the present invention.
Extremely shown in Figure 4 as Fig. 2, the scroll compressor that reduces the lubricant oil impedance function that has of one embodiment of the invention includes: have airtight containing space in inside, and possess for sucking and discharge the sucking pipe SP of cold media air and the casing 111 of outlet pipe DP in a side; Be fixed on the casing 111 inner upper bracket 112 and the lower bracket 113 of both sides up and down separately; Be installed in the drive motor 14 that produces rotating force between upper bracket 112 and the lower bracket 113; Be pressed among the rotor 114b of drive motor 114 at heart, be combined in the running shaft 117 that transmits drive motor 114 rotating forces on the movable orbiting scroll 116 after running through upper bracket 112 simultaneously; Possess eddy current shape scrollwork 115a, and on the top of upper bracket 112 hard-wired static vortex disk 115; Possess eddy current shape scrollwork 116a, and combine with static vortex disk 115 when static vortex disk 115 done relative motion and form two paired pressing chamber P that move continuously, and the movable orbiting scroll 116 of compression refrigerant; The cross connecting ring (Oldham ' s ring) 118 that is installed in the movable orbiting scroll 116 that circles round when preventing movable orbiting scroll 116 rotations between movable orbiting scroll 116 and the upper bracket 112 constitutes.
In addition, in order to accommodate the protruding key 116b of portion of movable orbiting scroll bottom, on upper bracket 112, possesses protruding key accepting groove 112b.
And, possess by accommodating the lubricant oil slot to avoid 112d that lubricant oil increases the lubricant oil storage area at the inner peripheral surface of protruding key accepting groove 112b.
The axis hole 112a that possesses radial support running shaft 117 in the central authorities of upper bracket 112.Possesses the protruding key accepting groove 112b that the protruding key 116b of portion that can make movable orbiting scroll 116 does circumnutation in the upper end portion of axis hole 112a.
Running shaft 117 is pressed in the rotor 114b of drive motor 114, both sides are supported by upper bracket 112 and lower bracket 113 separately up and down, and in order to suct each bearing surface of oil lubrication of 111 li bottoms of casing, portion is along axially possessing long oil duct 117a within it.
Meanwhile, increase the lubricating oil capacity space, possess the lubricant oil slot to avoid 112d of the specified width, which width and the degree of depth at the protruding key accepting groove 112b inner peripheral surface of upper bracket 112 in order to make the lubricant oil avoidance that sucts and be stored in the protruding key accepting groove 112b by oil duct.
Lubricant oil slot to avoid 112d is by formation such as fraising processing modes.The width of lubricant oil slot to avoid 112d and the degree of depth can change according to the capacity of compressor and operation condition etc.
In addition, in order to make lubricant oil slot to avoid 112d be in contact with one another the even lubricant oil volume space that increases on the face at the axial direction of protruding key 116b of portion and protruding key accepting groove, lubricant oil slot to avoid 112d forms best on whole along the circumferencial direction of protruding key accepting groove 112b.
And, in order to make lubricant oil in the protruding key accepting groove 112b, laterally run through to form oil drainage hole 112c in the side of protruding key accepting groove 112b to the oil extraction of the bottom of casing 111.At this moment, in the middle of the lubricant oil slot to avoid 112d, have at least a part to be communicated with oil drainage hole 112c.
The reason of Gou Chenging is for the lubricant oil in the protruding key accepting groove 112b is discharged to the bottom of casing 111 rapidly like this, and is to make reliability and decreased performance in order to prevent in advance because of lacking lubricant oil.
The scrollwork 115a that constitutes two paired pressing chamber P forms with the eddy current shape in the runner plate portion bottom surface of static vortex disk 115.In addition, can move to pressing chamber P, possess suction port (not shown) in the side of runner plate portion in order to make refrigerant by sucking pipe SP inflow suction compression volume Sps.
And, for the pressurized gas in the pressing chamber P is discharged to discharging compression volume Spd, possess exhaust port 115b in the upper central of runner plate portion.
In order selectivity to open and close exhaust port 115b in case the cold media air adverse current, outfit one-way valve 120 on static vortex disk 115.The inner space of casing 111 is divided into by static vortex disk 115 discharges compression volume Spd and sucks compression volume Sps.
On the runner plate portion of movable orbiting scroll 116, possesses the eddy current shape scrollwork 116a that constitutes two paired pressing chamber P with the scrollwork 115a of static vortex disk 115 together.Possesses the protruding key 116b of portion that accepts drive motor 114 rotating powers with running shaft 117 combinations in bottom surface central authorities of runner plate portion.The protruding key 116b of portion is inserted in the protruding key accepting groove 112b of upper bracket 112 and does circumnutation.
The stator that unaccounted symbol 114a is a drive motor 114 in the accompanying drawing, 111a are the upper caps that covers casing 111 tops.
Describe operation below in detail as the scroll compressor of the present invention of structure.Turn-on power drive motor 114, then running shaft 117 rotates with the rotor 114b of drive motor 114, and movable orbiting scroll 116 is being that radius of gyration is done circumnutation with the eccentric distance on upper bracket 112 under the effect of cross connecting ring 118 thus.
Thus, at the scrollwork 115a of movable orbiting scroll 116 and static vortex disk 115, form a pair of pressing chamber P between the 116a continuously.But pressing chamber P moves to the center because of movable orbiting scroll 116 continues circumnutation, and then volume reduces, and sucks, compresses and discharge cold media air thus continuously.
Here, cold media air flow into through sucking pipe SP and sucks compression volume Sps, enters in the pressing chamber P by suction port afterwards to be compressed, and then the exhaust port 115b by static vortex disk 115 discharges to discharging compression volume Spd.At last, cold media air is discharged to refrigerating circulation system (not shown) through outlet pipe DP.
In addition, during running shaft 117 high speed rotating, lubricant oil oil duct 117a by running shaft 117 under action of centrifugal force rises to the upper end.Wherein, the axis hole 112a of part oil lubrication upper bracket 112, another part lubricant oil supply to the thrust shaft bearing surface of lubricated movable orbiting scroll 116 between the thrust shaft bearing surface of the thrust shaft bearing surface of movable orbiting scroll 116 and upper bracket 112 and the thrust shaft bearing surface of upper bracket 112 etc.At this moment, the lubricant oil in the protruding key accepting groove 112b passes through oil drainage hole 112c to the oil extraction of the bottom of casing 111.
And, in protruding key accepting groove 112b, fill under the state of lubricant oil, movable orbiting scroll 116 circumnutations, the lubricant oil in the then protruding key accepting groove 112b is by the protruding key 116b of the portion compression of movable orbiting scroll 116, so there is the worry that produces the compression load rising because of the lubricant oil impedance.
But in the present invention, a part of lubricant oil in the protruding key accepting groove 112b can be avoided in the lubricant oil slot to avoid 112d of protruding key accepting groove 112b inner peripheral surface, reduces the compression load that produces because of the lubricant oil impedance, can prevent performance and decrease in efficiency thus.
Promptly, lubricant oil slot to avoid 112d can increase the lubricant oil containing space of protruding key accepting groove inside, can also reduce simultaneously by the lubricants capacity of the protruding key 116b of portion compression, the amount of lubricant oil compression as a result reduces, so the compression load that can corresponding minimizing produces because of the lubricant oil impedance can correspondingly reduce the noise that takes place because of compression load thus and prevent compressor performance, decrease in efficiency.
In front, describe preferred embodiment of the present invention in detail, but scope of the present invention can not be limited in the middle of the specific embodiment, but limit with the scope of putting down in writing in the right request.
Claims (3)
1. the scroll compressor with reduction lubricant oil impedance function includes: inside has the casing of airtight containing space; The frame of installing in the internal fixation of casing; Combine with the static vortex disk that is fixedly mounted on frame inside and form the movable orbiting scroll of two paired pressing chambers that move continuously; The protruding key portion of movable orbiting scroll bottom; The protruding key portion accepting groove that the axis hole upper end expansion of the upper bracket of frame central authorities forms constitutes, it is characterized in that: avoid being positioned in the protruding key accepting groove of accommodating movable orbiting scroll bottom protruding key portion on the frame in order to make lubricant oil, possess the lubricant oil slot to avoid at the inner peripheral surface of protruding key accepting groove.
2. according to claim 1 have a scroll compressor that reduces the lubricant oil impedance function, it is characterized in that: above-mentioned lubricant oil slot to avoid is that circumferencial direction along protruding key accepting groove is to whole formation.
3. the scroll compressor with reduction lubricant oil impedance function according to claim 1, it is characterized in that: the inner peripheral surface at above-mentioned protruding key accepting groove possesses oil drainage hole, has at least a part to be communicated with above-mentioned oil drainage hole in the middle of the lubricant oil slot to avoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101304599A CN101205910A (en) | 2006-12-20 | 2006-12-20 | Scroll compressor having function of reducing lubricating oil resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101304599A CN101205910A (en) | 2006-12-20 | 2006-12-20 | Scroll compressor having function of reducing lubricating oil resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101205910A true CN101205910A (en) | 2008-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101304599A Pending CN101205910A (en) | 2006-12-20 | 2006-12-20 | Scroll compressor having function of reducing lubricating oil resistance |
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| Country | Link |
|---|---|
| CN (1) | CN101205910A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870911A (en) * | 2016-08-31 | 2017-06-20 | 沈阳鼓风机集团压力容器有限公司 | For air blower and the method for designing and device of the lubricating oil system of compressor subsidiary engine |
| CN109496253A (en) * | 2016-07-29 | 2019-03-19 | 松下知识产权经营株式会社 | Scroll compressor |
-
2006
- 2006-12-20 CN CNA2006101304599A patent/CN101205910A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109496253A (en) * | 2016-07-29 | 2019-03-19 | 松下知识产权经营株式会社 | Scroll compressor |
| CN106870911A (en) * | 2016-08-31 | 2017-06-20 | 沈阳鼓风机集团压力容器有限公司 | For air blower and the method for designing and device of the lubricating oil system of compressor subsidiary engine |
| CN106870911B (en) * | 2016-08-31 | 2019-09-17 | 沈阳鼓风机集团压力容器有限公司 | The design method and device of lubricating oil system for air blower and compressor subsidiary engine |
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Open date: 20080625 |