JP2006299943A - Accumulator for multiple cylinder compressor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem wherein strength of a section where a lower part of a hermetic vessel and an outlet pipe are installed and fixed by a method such as brazing, is degraded and a volume of the hermetic vessel gets large when diameter of a hermetic vessel is relatively large. <P>SOLUTION: An intermediate plate 8 is attached to a lower vessel 3. Danger of inclination of outlet pipes 5a, 5b is thereby eliminated by inserting and fixing a plurality of the outlet pipes 5a, 5b in a plurality of fixing holes 9a, 9b of the intermediate plate 8 beforehand. A plurality of the outlet pipes 5a, 5b are not inclined and accurately and easily attached even if diameter of the accumulator is relatively large. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an accumulator used in a multi-cylinder compressor.

  As shown in FIG. 4, a conventional accumulator for a multi-cylinder compressor has an inlet pipe 4 above a cylindrical sealed container 1 connected to an upper container 2 having a hemispherical surface and a lower container 3 having a hemispherical surface. A plurality of outlet pipes 5a, 5b connected to a compressor (not shown) and inserted from a plurality of mounting holes 10a, 10b provided in the lower part of the sealed container 1, and the outlet pipes 5a, 5b and the inlet It is comprised with the partition plate 7 which has the some hole 6 installed between the pipe | tubes 4. As shown in FIG.

  In the above-described configuration, after the liquid component of the refrigerant flowing in from the inlet pipe 4 hits the partition plate 7, it passes through the plurality of holes 6 provided in the partition plate 7, and is once accumulated in the lower portion of the sealed container 1. After vaporization, the gas flows out from the outlet pipes 5a and 5b to the compressor as a gas component.

  However, in the above-described conventional configuration, the plurality of outlet pipes 5a and 5b are provided with a plurality of mounting holes 10a and 10b in the lower part of the semispherical shape of the sealed container 1 and inserted into the sealed container 1 from there, and then brazed. It was installed and fixed by such methods.

  In particular, when the diameter of the sealed container 1 is relatively large, the strength of the place where the lower part of the sealed container 1 and the outlet pipes 5a and 5b are installed and fixed by a method such as brazing is lowered. Since the space volume is also widened, the outlet pipes 5a and 5b tend to be inclined.

  In the case where the plurality of outlet pipes 5a and 5b are inclined, the outlet pipes 5a and 5b come into contact with each other inside the sealed container 1 or contact the inner wall of the sealed container 1 to generate abnormal noise. There was a cause.

  Further, in some cases, the openings of the outlet pipes 5a and 5b are directly looked into the plurality of holes 6 provided in the partition plate 7, and the liquid component of the refrigerant flowing from the inlet pipe 4 is directly used as the outlet pipes 5a and 5b. Therefore, there is a problem in that the accumulator original function of gas-liquid separation is not performed and the reliability of the compressor is lowered.

As a conventional technique for solving the above problem, an accumulator disclosed in Patent Document 1 is known as shown in FIG. According to this technique, the outlet pipes 101a and 101b of the accumulator are made into the inner pipe 104 whose tip is connected and integrated on the inlet pipe 103 side, thereby preventing the outlet pipes 101a and 101b from collapsing.
Japanese Patent Laid-Open No. 5-60080

  However, in the prior art, the inner pipe 104 in which the outlet pipes 101a and 101b are connected and integrated on the inlet pipe 103 side needs to be installed from the inside of the sealed container 102. In order to connect 101a, 101b and the compressor, another connecting pipe 105 is required.

  The present invention solves such a conventional problem, and provides an accumulator for a multi-cylinder compressor in which a plurality of outlet pipes are not inclined by supporting two outlet pipes even when the diameter of the sealed container is relatively large. With the goal.

  In order to solve the above-mentioned conventional problems, the present invention is such that a plurality of outlet pipes are attached to a lower container with a fixing rod. Thereby, there is no fear of the inclination of the outlet pipe, and even when the diameter of the accumulator is relatively large, the plurality of outlet pipes can be attached accurately and easily without inclination.

  The accumulator for a multi-cylinder compressor according to the present invention provides a highly productive accumulator for a multi-cylinder compressor that can be attached accurately and easily without tilting a plurality of outlet pipes even when the accumulator has a relatively large diameter. it can.

  1st invention is connected to an airtight container with an inlet pipe and a compressor, a plurality of outlet pipes inserted in the inside of the airtight container, and a partition plate having a plurality of holes between the outlet pipe and the inlet pipe Is installed, an intermediate plate having a plurality of fixing holes is attached to the inside of the lower container, and the plurality of outlet pipes are inserted and fixed into the plurality of fixing holes of the intermediate plate. With this configuration, by attaching the intermediate plate to the lower container and inserting and fixing a plurality of outlet pipes, there is no fear of the inclination of the outlet pipes during attachment, and the outlet plates can be attached accurately.

  Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1)
FIG. 1 is a diagram of an accumulator for a multi-cylinder compressor according to Embodiment 1 of the present invention.

  1, the same components as those in FIGS. 2, 3 and 4 are denoted by the same reference numerals, and the description thereof is omitted.

  In FIG. 1, an inlet pipe 4 is inserted above a cylindrical sealed container 1 to which an upper container 2 and a lower container 3 are connected, and is inserted into the sealed container 1 connected to a compressor (not shown). A plurality of outlet pipes 5 a and 5 b and a partition plate 7 having a plurality of holes 6 between the outlet pipes 5 a and 5 b and the inlet pipe 4 are installed. The plurality of outlet pipes 5 a and 5 b are inserted and fixed to an intermediate plate 8 having fixing holes 9 a and 9 b, and the intermediate plate 8 is attached to the lower container 3.

  In the above configuration, after the liquid component of the refrigerant flowing in from the inlet pipe 4 hits the partition plate 7, passes through the plurality of holes 6 provided in the partition plate 7, and is once accumulated in the lower portion of the sealed container 1. After vaporization, the gas flows out from the outlet pipes 5a and 5b to the compressor as a gas component.

  The intermediate plate 8 having the fixing holes 9a and 9b is attached to the lower container 3 by a method such as welding. At this time, the intermediate plate 8 is attached by using a jig or the like. Thereafter, the outlet pipes 5a and 5b are inserted and fixed in the fixing holes 9a and 9b, so that the outlet pipes 5a and 5b can be attached to the lower portion of the lower container 3 without being tilted by a method such as brazing.

  Therefore, even when the diameter of the sealed container 1 is relatively large, the outlet pipes 5a and 5b can be installed accurately and easily without tilting.

  As a result, the outlet pipes 5a and 5b come into contact with each other inside the sealed container 1, or an abnormal sound is caused by contacting the inner wall of the sealed container 1, or the openings of the outlet pipes 5a and 5b. By directly looking into the plurality of holes 6 provided in the partition plate 7, the liquid component of the refrigerant flowing in from the inlet pipe 4 is not directly sucked into the compressor through the outlet pipes 5a and 5b.

(Embodiment 2)
FIG. 2 is a diagram of an accumulator for a multi-cylinder compressor according to Embodiment 2 of the present invention.

  2, the same components as those in FIGS. 1, 3, and 4 are denoted by the same reference numerals, and description thereof is omitted.

  In FIG. 2, the hermetic container 1 is made of copper or a copper alloy, preferably phosphorous deoxidized copper, and the upper and lower cylinders having the same diameter and thickness as the hermetic container 1 are integrally formed by drawing.

  Thereby, it is not necessary to configure the sealed container 1 by connecting the upper container 2 and the lower container 3, and the productivity can be further increased.

(Embodiment 3)
FIG. 3 is a diagram of an accumulator for a multi-cylinder compressor according to Embodiment 3 of the present invention.

  In FIG. 3, the same components as those in FIGS. 1, 2 and 4 are denoted by the same reference numerals, and the description thereof is omitted.

  In FIG. 3, the intermediate plate 8 constitutes a plurality of openings 9 c in addition to the plurality of fixing holes 9 a and 9 b.

  The liquid component of the refrigerant flowing in from the inlet pipe 4 passes through the plurality of openings 9c and accumulates in the lower part of the sealed container 1. Thereafter, after vaporization, the gas flows out from the outlet pipes 5a and 5b to the compressor through the plurality of openings 9c.

  Thereby, the plurality of openings 9c can pass the liquid component and the gas component of the refrigerant.

  Although the first embodiment, the second embodiment, and the third embodiment have been described using the accumulator for a two-cylinder compressor, the present invention can provide the same effect even in a compressor accumulator having three or more cylinders. .

  As described above, since the accumulator for a multi-cylinder compressor according to the present invention can improve productivity, it can be applied not only to a refrigeration air conditioner but also to a dehumidifier.

The longitudinal cross-sectional view of the accumulator which shows Embodiment 1 of this invention Longitudinal sectional view of an accumulator showing Embodiment 2 of the present invention The top view of the intermediate | middle board which shows Embodiment 3 of this invention Longitudinal section of a conventional accumulator Vertical sectional view of another conventional accumulator and compressor

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Airtight container 2 Upper container 3 Lower container 4 Inlet pipe 5a, 5b Outlet pipe 6 Multiple holes of a partition plate 7 Partition plate 8 Intermediate plate 9a Fixed hole 9b Fixed hole 9c Opening part 10a Mounting hole
10b Mounting hole 101a Outlet pipe 101b Outlet pipe 102 Sealed container 103 Inlet pipe 104 Connected and integrated inner pipe 105 Connection pipe

Claims (3)

An inlet pipe is installed above the upper container in a sealed container composed of an upper container and a lower container, connected to a compressor, and a plurality of outlet pipes inserted into the sealed container; the outlet pipes and the inlet pipes; A partition plate having a plurality of holes in between is installed in the upper container, an intermediate plate having a cross shape having a plurality of fixing holes is attached inside the lower container, and the fixing holes of the intermediate plate are inserted in the fixing holes. An accumulator for a multi-cylinder compressor in which a plurality of outlet pipes are inserted and fixed. The accumulator for a multi-cylinder compressor according to claim 1, wherein the material of the hermetic container is copper or a copper alloy, and an upper container and a lower container constituting the hermetic container are integrally formed. The accumulator for a multi-cylinder compressor according to claim 1, wherein the intermediate plate has a plurality of openings in addition to the plurality of fixing holes.

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