CN1724871A - Vortex compressor - Google Patents
Vortex compressor Download PDFInfo
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- CN1724871A CN1724871A CN 200510087456 CN200510087456A CN1724871A CN 1724871 A CN1724871 A CN 1724871A CN 200510087456 CN200510087456 CN 200510087456 CN 200510087456 A CN200510087456 A CN 200510087456A CN 1724871 A CN1724871 A CN 1724871A
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Abstract
The present invention provides a scroll compressor in which a gap in a finished product can be secured, so as to solve a problem that setting of the gap between a bottom face of a fixed scroll lap and an upper face of a swirl scroll lap goes wrong away from design intention resulted from distortion caused by fastening or welding, a clearance gets very narrow, and the reliability is lowered. Since an end face of an engagement part of a bearing with a fixed scroll component is formed into a tapered shape by design, the clearance between a lap bottom face of the fixed scroll and an upper face of the swirl scroll can be adjusted in a direction expanding the clearance even in engagement by a bolt so that the scroll compressor with high reliability is provided.
Description
Technical field
The present invention relates to the scroll compressor of uses such as refrigerating and air conditioning field.
Background technique
Scroll compressor of the prior art, the fixed scroll member and the cycle scroll element that have formed volute volume (below call scrollwork) on end plates are combined, to the cycle scroll element end plates back side, apply and make their not discrete mutually certain pressures, the scrollwork and the end plates of two scroll elements are connected airtight mutually, form pressing chamber.In order to reduce the leakage loss of slide part, by high-precision processing and assembling, the gap of control fixed scroll member and cycle scroll element.
Patent documentation 1: Japanese kokai publication sho 62-126204 communique
But, the bolt combination of fixed scroll member and bearing, the generation deviation is set in the gap between this makes above the scrollwork of end plates bottom surface and cycle scroll element of fixed scroll member in conjunction with the distortion that produces.In addition, for compression mechanical part is fixed in the seal container, bearing is weldingly fixed in the confined space, the distortion during this welding also makes the gap set and produces deviation.Like this, the distortion that produces during component-assembled makes and gap turn narrow between fixed scroll member and the cycle scroll element has reduced reliability.
Summary of the invention
Therefore, the purpose of this invention is to provide the scroll compressor that when becoming finished product, can guarantee the gap.
The scroll compressor of the present invention of technological scheme 1 record in the fixed scroll member that has formed the volute volume on the end plates with formed the cycle scroll element interlock that volute is rolled up on end plates, forms several pressing chambers; Above-mentioned cycle scroll element carries out turning motion with respect to the said fixing scroll element, Yi Bian above-mentioned pressing chamber reduces volume pressurized gas movably on one side from peripheral part towards central part; Above-mentioned cycle scroll element at fixing cycle parts opposition side by crankshaft drives; Above-mentioned crankshaft is being kept slidably by bearing; Above-mentioned cycle scroll element by above-mentioned bearing and the clamping of said fixing scroll element; With bolt with above-mentioned bearing and the combination of said fixing scroll element; Above-mentioned bearing is weldingly fixed on the seal container; It is characterized in that,, become from the center towards the conical surface of foreign side away from the said fixing scroll element contact end face above-mentioned bearing, that contact with the said fixing scroll element.
The present invention of technological scheme 2 records, be in the scroll compressor of technological scheme 1 record, it is characterized in that, the front end of the volute of above-mentioned cycle scroll element volume, and the end plates of said fixing scroll element between the gap, become micro-gap, the front end of rolling up in above-mentioned volute is not provided with the sealing material.
The present invention of technological scheme 3 records is in the scroll compressor of technological scheme 1 record, it is characterized in that above-mentioned cycle scroll element and said fixing scroll element are made with different materials.
The present invention of technological scheme 4 records is in the scroll compressor of technological scheme 1 record, it is characterized in that, in the volute volume of above-mentioned cycle scroll element, fuel supply path is set.
According to scroll compressor of the present invention, because the end face of contacting part bearing, that contact with fixed scroll member is become taper, so, promptly use bolt to carry out combination fixedly the time, also the direction that open towards expansion in the gap between above the scrollwork of the end plates bottom surface of fixed scroll member and cycle scroll element can be regulated, even produce distortion when being welded on the seal container to bearing, also can guarantee the gap, the scroll compressor of guaranteeing reliability than existing compressor can be provided.
That is, the cycle scroll element of the pressing chamber that forms the closed type scroll compressor and the reliability of fixed scroll member can improve in oil supply of the present invention mechanism.
Description of drawings
Fig. 1 is the sectional view of the present invention the 1st embodiment's scroll compressor.
Fig. 2 is the compressor section amplification profile diagram in the scroll compressor shown in Figure 1.
Fig. 3 is the bearing sectional view in the scroll compressor shown in Figure 1.
Fig. 4 is in the scroll compressor shown in Figure 1, with the sectional view of bearing and fixed scroll member combination.
Fig. 5 is the compressor section amplification profile diagram in the present invention the 2nd embodiment's the scroll compressor.
Embodiment
The scroll compressor of the present invention's the 1st example the contact end face that contacts with fixed scroll member of bearing, becomes from the center towards the conical surface of foreign side away from fixed scroll member.According to this example, with bolt etc. with fixed scroll member and bearing in conjunction with fixedly the time, fixed scroll member is out of shape along the conical surface, so the gap between above the volute of the end plates of fixed scroll member and the cycle scroll element volume must be expanded out, turn round with the gap more than the setting value, can prevent that sliding stop wears away, kills, sintering etc.
The scroll compressor of the present invention's the 2nd example, be in the scroll compressor of the 1st example, with the volute of cycle scroll element volume front end, with the end plates of fixed scroll member between the gap, become micro-gap, the front end of rolling up in volute is not provided with the sealing material.According to this example, owing to reduced the leakage loss in gap, raise the efficiency more, on the other hand, because the gap is minimum, the gap management when assembling is more important, turns round with the gap more than the setting value, can prevent that sliding stop wears away, kills, sintering.In other words, abolished the sealing material above the volute volume that is located at the cycle scroll element, design gaps between having dwindled above the volute volume of the end plates bottom surface of fixing cycle parts and cycle scroll element more, can lower leakage loss, realize high performance, simultaneously, do not lose the reliability of cycle scroll element and fixed scroll member.
The scroll compressor of the present invention's the 3rd example is in the scroll compressor of the 1st example, and cycle scroll element and fixed scroll member are made with different materials.According to this example, because the constituent material of cycle scroll element and fixed scroll member is different, so, rates of thermal expansion difference during running, distortion is bigger to the influence in gap, the management of gap during assembling is more important, turns round with the gap more than the setting value, can prevent that sliding stop wears away, kills, sintering etc.
The scroll compressor of the present invention's the 4th example is in the scroll compressor of the 1st example, in the volute volume of cycle scroll element, fuel supply path is set.According to this example, can lower the leakage loss that volute is rolled up preceding splaying.
(embodiment 1)
Below, with reference to the description of drawings embodiments of the invention.
Fig. 1 is the sectional view of the present invention the 1st embodiment's scroll compressor.Fig. 2 is the compressor section amplification profile diagram in the scroll compressor shown in Figure 1.Fig. 3 is the bearing sectional view in the scroll compressor shown in Figure 1.Fig. 4 is in the scroll compressor shown in Figure 1, with the sectional view of bearing and fixed scroll member combination.
The scroll compressor of present embodiment is by fixed scroll member 2 that has formed scrollwork 17 on end plates and cycle scroll element 4, make cycle scroll element 4 make the bearing 12 of the crankshaft 8 of turning motion, pivot suspension crankshaft 8, fixed scroll member 2 and bearing 12 constituted in conjunction with fixing bolt 18, the seal container 21 etc. of accommodating each constituting component and welding rigid bearing 12.The outer circumferential face of bearing 12 is fixed on the seal container 21 with welding 22.In addition, at the peripheral part of bearing 12, formed the contact end face 12a that contacts with fixed scroll member 2.This contact end face 12a is towards the conical surface of foreign side away from fixed scroll member 2 from the center.The hole of inserting bolt 18 is in this contact end face 12a upper shed.
As shown in Figure 1, from the refrigerant gas that suction pipe 1 sucks, the suction chamber 3 through fixed scroll member 2 enters and is enclosed in the pressing chamber 5 that forms with 4 interlocks of cycle scroll element, reduce volume on one side towards the center and be compressed on one side, discharge from exhaust port 6 then.Trochoid pump 7 is given by crankshaft 8 and being rotatablely moved, and lubricant oil is sucted from the compressor bottom by this trochoid pump 7, by the lubricant oil supply hole 9 of crankshaft 8 inside, and the capacity eccentric bearing inner space 10 of guiding cycle scroll element 4.
The oil stream is from being divided into both direction here, the oily stream of a direction, and through the restriction 11 at the end plates back side that is located at cycle scroll element 4, guiding is surrounded by fixed scroll member 2 and bearing 12 and the back pressure chamber 13 that forms.This back pressure chamber 13 is intermediate pressures of high low pressure, should middle voltage-controlled certain pressure that is made as by backpressure adjusting mechanism 14.The structure of backpressure adjusting mechanism 14 is, on back pressure chamber 13 inside by scroll element 2 and path 15 that suction chamber 3 is communicated with, be provided with valve 16, when the pressure of back pressure chamber 13 is higher than setting pressure, valve 16 is opened, the oil of back pressure chamber 13 supplies to suction chamber 3, will remain certain middle pressure in the back pressure chamber 13.In addition, the oil that has supplied to suction chamber 3 prevents the leakage of 5 of pressing chambers along with turning motion moves towards pressing chamber 5.
The oily stream of another direction, as shown in Figure 2, fuel supply path 19 on scrollwork 17 short transverses that are located at cycle scroll element 4 that lead, oil is supplied with at the back side to sealing material 20, make sealing material 20 come-ups, the gap 23 that produces between the scrollwork 17 of the end plates bottom surface of fixed scroll member 2 and cycle scroll element 4 top is blocked, reduced leakage loss.
As shown in Figure 3 and Figure 4, the shape of the end face 12a of bearing 12 is become taper, when combining fixedly with bearing 12 fixed scroll member 2 with bolt 18, the central part of fixed scroll member 2 is heaved, gap ratio gap 23 expands to be opened, like this, when promptly using welding 22 with bearing 12 and seal container 21 welding, because stress is expanding the direction of opening with gap 23, so, gap 23 can be guaranteed for more than the design load, can not become the following gap of design load, can prevent that the slip between fixed scroll member 2 and the cycle scroll element 4 from wearing away, kill, sintering etc.
(embodiment 2)
Fig. 5 is the compressor section amplification profile diagram in the present invention the 2nd embodiment's the scroll compressor.
The scroll compressor of present embodiment, the gap between scrollwork front end and the opposite sides end plates face is small gap, at the scrollwork front end sealing material is not set.Other structure is identical with embodiment 1.
That is, as shown in Figure 5, on the scrollwork 17 of cycle scroll element 4, sealing material 20 is not set, so gap 24 to the 1 embodiments' of present embodiment gap 23 is little.Lower leakage loss during like this, than employing sealing material 20 more.Though the deformation effect that produces when assembling is big, as shown in Figure 3 and Figure 4, because the shape of the end face 12a of bearing 12 is become taper, the central part of fixed scroll member 2 is the shape that bloats, so gap ratio gap 24 enlarges.Like this, when promptly using welding 22 with bearing 12 and seal container 21 welding, because stress is expanding the direction of opening with gap 24, so, gap 24 can be guaranteed for more than the design load, can not become the following gap of design load, can prevent that the slip between fixed scroll member 2 and the cycle scroll element 4 from wearing away, kill, sintering etc.
(embodiment 3)
The scroll compressor of present embodiment (figure does not show), fixed scroll member 2 and cycle scroll element 4 usefulness different materials constitute, and other structure is identical with the 1st embodiment.
That is, cycle the parts 4 shown in Figure 1 and fixedly material of cycle parts 2 is inequality, and, the material heat expansion rate of cycle scroll element 4 is bigger than the material heat expansion rate of fixed scroll member 2, sets gap 23 or gap 24, during running, poor by rates of thermal expansion more reduces leakage loss.Though the deformation effect that produces during assembling is big, as shown in Figure 3 and Figure 4, because the shape of the end face 12a of bearing 12 is become taper, the central part of fixed scroll member 2 is the shape that bloats, so gap ratio gap 23 or gap 24 enlarge.Like this, when promptly using welding 22 with bearing 12 and seal container 21 welding, because stress is expanding the direction of opening with gap 23 or gap 24, so, gap 23 or gap 24 can be guaranteed for more than the design load, can not become the following gap of design load, can prevent that the slip between fixed scroll member 2 and the cycle scroll element 4 from wearing away, kill, sintering etc.
As mentioned above, scroll compressor of the present invention can improve the reliability of cycle scroll element and fixed scroll member, is suitable for refrigerating plant or air bells conditioner etc.
Claims (4)
1. scroll compressor in the fixed scroll member that has formed the volute volume on the end plates with formed the cycle scroll element interlock of volute volume on end plates, forms several pressing chambers; Above-mentioned cycle scroll element carries out turning motion with respect to the said fixing scroll element, thus, Yi Bian above-mentioned pressing chamber reduces volume pressurized gas movably on one side from peripheral part towards central part; Above-mentioned cycle scroll element at fixing cycle parts opposition side by crankshaft drives; Above-mentioned crankshaft is being kept slidably by bearing; Above-mentioned cycle scroll element by above-mentioned bearing and the clamping of said fixing scroll element; With bolt with above-mentioned bearing and the combination of said fixing scroll element; Above-mentioned bearing is weldingly fixed on the seal container; It is characterized in that,, become from the center towards the conical surface of foreign side away from the said fixing scroll element contact end face above-mentioned bearing, that contact with the said fixing scroll element.
2. scroll compressor as claimed in claim 1, it is characterized in that, gap between the above-mentioned end plates of the front end of the above-mentioned volute volume of above-mentioned cycle scroll element and said fixing scroll element is become micro-gap, and the front end of rolling up in above-mentioned volute is not provided with the sealing material.
3. scroll compressor as claimed in claim 1 is characterized in that, above-mentioned cycle scroll element and said fixing scroll element constitute with different materials.
4. scroll compressor as claimed in claim 1 is characterized in that, is provided with fuel supply path in the above-mentioned volute volume of above-mentioned cycle scroll element.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004214053 | 2004-07-22 | ||
| JP2004214053A JP2006037723A (en) | 2004-07-22 | 2004-07-22 | Scroll compressor |
| JP2004-214053 | 2004-07-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1724871A true CN1724871A (en) | 2006-01-25 |
| CN100434703C CN100434703C (en) | 2008-11-19 |
Family
ID=35902988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100874567A Active CN100434703C (en) | 2004-07-22 | 2005-07-22 | Vortex compressor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2006037723A (en) |
| CN (1) | CN100434703C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678548A (en) * | 2011-03-14 | 2012-09-19 | 松下电器产业株式会社 | Scroll compressor and manufacturing method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101238207B1 (en) | 2006-08-29 | 2013-03-04 | 엘지전자 주식회사 | Scroll compressor |
| CN115929629B (en) * | 2022-11-16 | 2023-11-24 | 北京理工大学 | Multidimensional conjugate curved surface vortex tooth group, compressor and expander |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61197787A (en) * | 1985-02-27 | 1986-09-02 | Toshiba Corp | Scroll type compressor |
| JPS61268889A (en) * | 1985-05-24 | 1986-11-28 | Toshiba Corp | Scroll type compression equipment |
| JPH05263776A (en) * | 1992-03-19 | 1993-10-12 | Toshiba Corp | Scroll compressor |
| JP3109359B2 (en) * | 1993-12-24 | 2000-11-13 | 松下電器産業株式会社 | Hermetic scroll compressor and method for assembling the same |
| JP2003097458A (en) * | 2001-09-20 | 2003-04-03 | Matsushita Electric Ind Co Ltd | Sealed compressor and method of manufacture |
-
2004
- 2004-07-22 JP JP2004214053A patent/JP2006037723A/en active Pending
-
2005
- 2005-07-22 CN CNB2005100874567A patent/CN100434703C/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678548A (en) * | 2011-03-14 | 2012-09-19 | 松下电器产业株式会社 | Scroll compressor and manufacturing method thereof |
| CN102678548B (en) * | 2011-03-14 | 2016-08-24 | 松下电器产业株式会社 | Scroll compressor and manufacture method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006037723A (en) | 2006-02-09 |
| CN100434703C (en) | 2008-11-19 |
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