Scroll compressor having a discharge port
阅读说明:本技术 涡旋式压缩机 (Scroll compressor having a discharge port ) 是由 中井亮太 村上泰弘 水岛康夫 于 2018-06-07 设计创作,主要内容包括:涡旋式压缩机。涡旋式压缩机(10)具备具有固定涡旋件涡盘(52)的固定涡旋件(50)和具有可动涡旋件涡盘(62)的可动涡旋件(60)。固定涡旋件涡盘(52)的厚度即第2厚度(T2)大于可动涡旋件涡盘(62)的厚度即第1厚度(T1)。第1侧面间隙(G1)是可动涡旋件涡盘内线(63)和固定涡旋件涡盘外线(54)最接近时可动涡旋件涡盘内线(63)与固定涡旋件涡盘外线(54)之间的间隔。第2侧面间隙(G2)是可动涡旋件涡盘外线(64)和固定涡旋件涡盘内线(53)最接近时可动涡旋件涡盘外线(64)和固定涡旋件涡盘内线(53)之间的间隔。第2侧面间隙(G2)大于第1侧面间隙(G1)。(A scroll compressor is provided. A scroll compressor (10) is provided with a fixed scroll (50) having a fixed scroll (52) and a movable scroll (60) having a movable scroll (62). The thickness of the fixed scroll (52), i.e., the 2 nd thickness (T2), is greater than the thickness of the movable scroll (62), i.e., the 1 st thickness (T1). The 1 st flank gap (G1) is the distance between the movable scroll inner line (63) and the fixed scroll outer line (54) when the movable scroll inner line (63) and the fixed scroll outer line (54) are closest to each other. The 2 nd side gap (G2) is the distance between the movable scroll outer line (64) and the fixed scroll inner line (53) when the movable scroll outer line (64) and the fixed scroll inner line (53) are closest to each other. The 2 nd side gap (G2) is greater than the 1 st side gap (G1).)
1. A scroll compressor (10) having:
a fixed scroll (50) having a fixed scroll (52); and
a movable scroll (60) having a movable scroll (62),
a 1 st scroll (62) and a 2 nd scroll (52) are one and the other of the fixed scroll and the movable scroll, respectively, and a 2 nd thickness (T2) which is a thickness of the 2 nd scroll is larger than a 1 st thickness (T1) which is a thickness of the 1 st scroll,
a 1 st flank gap (G1) is a distance between the 1 st scroll inner line (63) and the 2 nd scroll outer line (54) when the 1 st scroll inner line (63) and the 2 nd scroll outer line (54) are closest to each other,
a 2 nd side gap (G2) is a distance between the outer line (64) of the 1 st scroll and the inner line (53) of the 2 nd scroll when the outer line (64) of the 1 st scroll and the inner line (53) of the 2 nd scroll are closest to each other,
the 2 nd side gap (G2) is greater than the 1 st side gap (G1).
2. The scroll compressor of claim 1,
the 2 nd thickness (T2) is 130% or more of the 1 st thickness (T1).
3. The scroll compressor according to claim 1 or 2,
the 2 nd side gap (G2) is 110% or more of the 1 st side gap (G1).
4. The scroll compressor of claim 3,
the 2 nd side gap (G2) is 120% or more of the 1 st side gap (G1).
5. The scroll compressor according to any one of claims 1 to 4, wherein,
the height (H1) of the 1 st scroll is more than 7 times of the 1 st thickness (T1).
6. The scroll compressor according to any one of claims 1 to 5, wherein,
the 2 nd scroll (52) has an inner peripheral side scroll part (521) and an outer peripheral side scroll part (522),
the 1 st scroll (62) has a reciprocating scroll portion (625) relatively reciprocating between the inner circumference side scroll portion and the outer circumference side scroll portion,
the 1 st side gap (G1) is a gap formed by the inner peripheral side scroll part (521) and the reciprocating scroll part (625),
the 2 nd side gap (G2) is a gap formed by the outer peripheral side scroll part (522) and the reciprocating scroll part (625),
the 1 st thickness (T1) is a thickness of the reciprocating scroll portion (625),
the 2 nd thickness (T2) is a thickness of the outer peripheral side scroll portion (522).
7. The scroll compressor according to any one of claims 1 to 6, wherein,
the 1 st scroll (62) is the movable scroll (62),
the 2 nd scroll (52) is the fixed scroll (52).
Technical Field
The present invention relates to a scroll compressor.
Background
In a scroll compressor, a compression chamber is defined by a fixed scroll and a movable scroll having a spiral scroll. Since each portion of the scroll is in contact with a fluid having a different pressure, the portion may be deformed by a pressure difference. In order to prevent the occurrence of such deformation and the occurrence of operational abnormality, in the scroll compressor disclosed in patent document 1 (japanese patent application laid-open No. 2015-71947), a gap between the inner side of the movable scroll and the outer side of the fixed scroll is set to be large. The premise is the following recognition: the movable scroll is inclined inward due to deformation, and easily interferes with the fixed scroll on the inner side.
Disclosure of Invention
Problems to be solved by the invention
Since the direction in which the scroll is easily tilted varies depending on various conditions, the movable scroll may be tilted outward. In this case, the structure proposed in patent document 1 is rather susceptible to deformation of the scroll, and there is a possibility that an operation abnormality such as noise may be caused by interference between the fixed scroll and the movable scroll. When a refrigerant of a type that can be heated to a high temperature is compressed, the scroll is thermally expanded, and thus an operation abnormality is more likely to occur.
The invention provides a scroll compressor which is not easy to generate abnormal operation when a scroll is deformed due to pressure difference.
Means for solving the problems
The scroll compressor according to claim 1 of the present invention includes: a fixed scroll having a fixed scroll pan; and a movable scroll having a movable scroll. The 1 st scroll and the 2 nd scroll are one and the other of the fixed scroll and the movable scroll, respectively, and the 2 nd scroll, which is the thickness of the 2 nd scroll, is larger than the 1 st scroll, which is the thickness of the 1 st scroll. The 1 st flank gap is a gap between an inner line of the 1 st scroll and an outer line of the 2 nd scroll when the inner line of the 1 st scroll and the outer line of the 2 nd scroll are closest. The 2 nd side gap is a space between the outer line of the 1 st scroll and the inner line of the 2 nd scroll when the outer line of the 1 st scroll and the inner line of the 2 nd scroll are closest. The 2 nd side gap is greater than the 1 st side gap.
According to this structure, the 2 nd flank gap on the outer line side of the 1 st scroll is larger than the 1 st flank gap on the inner line side of the 1 st scroll. Since the inner peripheral side of the scroll contains a high-pressure fluid as compared with the outer peripheral side, the 1 st scroll having a small thickness is likely to tilt outward. Therefore, the tilting amount of the 1 st scroll is accommodated in the relatively large 2 nd side surface gap, and therefore, the interference between the 1 st scroll and the 2 nd scroll is suppressed, and the operation abnormality is not easily caused.
The scroll compressor according to
According to this structure, the 2 nd thickness is 130% or more of the 1 st thickness. The probability of the 1 st scroll plate falling is higher than that of the 2 nd scroll plate which is 30% or more thick. The tilting amount of the 1 st scroll can be accommodated in the 2 nd side surface gap. Therefore, interference is more reliably suppressed when the scroll pan is tilted.
In the scroll compressor according to claim 3 of the present invention, in the scroll compressor according to
According to this structure, the 2 nd side surface gap is 110% or more of the 1 st side surface gap. Therefore, the 2 nd flank gap can further accommodate the amount of inclination of the 1 st scroll by a difference of 10%.
The scroll compressor according to claim 4 of the present invention is the scroll compressor according to claim 3, wherein the 2 nd flank gap is 120% or more of the 1 st flank gap.
According to this structure, the 2 nd side surface gap is 120% or more of the 1 st side surface gap. Therefore, the 2 nd flank gap can further accommodate the amount of inclination of the 1 st scroll by a larger difference of 20%.
The scroll compressor according to claim 5 of the present invention is the scroll compressor according to any one of claims 1 to 4, wherein the height of the 1 st scroll is 7 times or more the 1 st thickness.
According to this structure, the height of the 1 st scroll is 7 times or more the thickness. The scroll having a larger ratio of height to thickness is more likely to fall due to a pressure difference of fluid. Therefore, in the structure in which the inclination of the scroll scrolls is easily caused, the interference between the scroll scrolls is more reliably suppressed.
A scroll compressor according to claim 6 of the present invention is the scroll compressor according to any one of claims 1 to 5, wherein the 2 nd scroll has an inner peripheral side scroll part and an outer peripheral side scroll part. The 1 st scroll has a reciprocating scroll portion that relatively reciprocates between an inner peripheral side scroll portion and an outer peripheral side scroll portion. The 1 st side gap is a gap formed by the inner peripheral side scroll portion and the reciprocating scroll portion. The 2 nd side gap is a gap formed between the outer peripheral scroll portion and the reciprocating scroll portion. The 1 st thickness is a thickness of the reciprocating scroll portion. The 2 nd thickness is the thickness of the outer peripheral side scroll portion.
According to this structure, the reciprocating scroll portion of the 1 st scroll is sandwiched by the inner circumference side scroll portion and the outer circumference side scroll portion of the 2 nd scroll. The 1 st side gap is formed by the reciprocating scroll portion and the inner peripheral side scroll portion. The 2 nd side gap is formed by the reciprocating scroll portion and the outer peripheral side scroll portion. Therefore, when the thicknesses of the 1 st scroll and the 2 nd scroll differ depending on the location, it is possible to determine which of the 1 st thickness, the 2 nd thickness, the 1 st flank gap, and the 2 nd flank gap should be obtained depending on which portion of the scroll.
A scroll compressor according to claim 7 of the present invention is the scroll compressor according to any one of claims 1 to 6, wherein the 1 st scroll is a movable scroll, and the 2 nd scroll is a fixed scroll.
According to this structure, the 1 st scroll is a movable scroll, and therefore, the movable scroll has a small thickness and is light in weight. Therefore, the rotational driving force for revolving the movable scroll is only required to be small, and therefore, the energy efficiency of the scroll compressor can be easily improved.
Effects of the invention
According to the scroll compressor of the present invention, interference is suppressed when the scroll pan is tilted, and an operation abnormality is not easily caused.
Drawings
Fig. 1 is a sectional view of a
Fig. 2 is a sectional view of the
Fig. 3 is a sectional view of the
Fig. 4 is a sectional view of the
Fig. 5 is a schematic diagram showing a cross section of the
Fig. 6 is a schematic diagram showing a cross section of the
Description of the reference symbols
10 scroll compressor
20 outer casing
30 motor
40 compression mechanism
50 fixed scroll
51 fixed scroll end plate
52 fixed scroll
53 fixed scroll inner line
54 fixed scroll outer line
60 Movable scroll
61 Movable scroll end plate
62 Movable scroll
63 inner line of movable scroll
64 movable scroll outer line
Detailed Description
(1) Integral structure
FIG. 1 illustrates a
The refrigerant to be compressed in the
(2) Detailed structure
(2-1)
The casing 20 houses various components of the
(2-2)
The
(2-3)
The
(2-4)
The
(2-5)
The
(3) Operation of
The
(4) Detailed structure of the
Fig. 2 shows the fixed
Fig. 3 shows the
Fig. 4 is a sectional view in the horizontal plane of the
The
Fig. 5 and 6 show the inner and outer
Fig. 5 shows reciprocating
Fig. 6 shows a state where reciprocating
In the
The 2 nd side gap G2 is set to be larger than the 1 st side gap G1. Specifically, the 2 nd side gap G2 is 110% or more, preferably 120% or more of the 1 st side gap G1. Further, the 2 nd side gap G2 may be set to 1000% or less, preferably 500% or less of the 1 st side gap G1.
The 2 nd thickness T2 is set to 130% or more of the 1 st thickness T1. Further, the 2 nd thickness T2 may be set to 1000% or less, preferably 500% or less of the 1 st thickness T1.
The 1 st height H1 is set to be 7 times or more of the 1 st thickness T1. Further, the 1 st height H1 may be set to be 100 times or less, preferably 50 times or less, of the 1 st thickness T1.
(5) Feature(s)
(5-1)
The 2 nd side gap G2 on the movable scroll
(5-2)
The 2 nd thickness T2 is 130% or more of the 1 st thickness T1. The
(5-3)
The 2 nd side gap G2 is 110% or more, preferably 120% or more of the 1 st side gap G1. Therefore, the 2 nd side gap can further accommodate the amount of inclination of the
(5-4)
The height of the
(5-5)
The
(5-6)
The
(6) Modification example
Next, a modification of the present embodiment will be described. In addition, a plurality of modifications may be appropriately combined.
(6-1) modification A
In the above embodiment, the 1 st thickness T1 is set as the thickness of the
With this configuration, interference between the
(6-2) modification B
The fixed
According to this structure, the fixed