JPH11351708A - Accumulator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the pressure loss, and miniaturize an accumulator. SOLUTION: This accumulator comprises a tubular casing 1 which is annexed to the compressor constituting a freezer and is equipped with an inflow pipe 2 for a refrigerant at one end, a filter 8 which is provided at the inwall of the casing 1 adjacently to the inflow pipe 2 and is retained by a holder 9 equipped with a through hole 7 where a refrigerant flow passes, and an outflow pipe 3 which is introduced into the casing from the other end and whose base end is equipped with a plurality of small holes 4 and whose tip is arranged to face the inflow pipe 2, and a part of the holder 9 opposed to the outflow pipe 3 is bulged to the side of the inflow pipe, and also the filter 8 is made, corresponding to the shape of this bulge, while the tip of the outflow pipe 2 is extended to this bulge, and also the peripheral face of this extension is provided with an auxiliary small hole 4'.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an accumulator attached to a compressor constituting a refrigerating apparatus, and more particularly, to reducing pressure loss and downsizing. Regarding the structure.

[0002]

2. Description of the Related Art A conventional accumulator is, for example, shown in FIG.
(A), FIG. 1 (B), and FIG. 3 show a cylindrical casing 1 attached to the compressor a and having a refrigerant inflow pipe 2 at one end; The filter 8 is provided on the inner wall of the casing 1 in close proximity to the filter 8 and held by a holder 9 having a through hole 7 through which a refrigerant flow passes.
And a plurality of small-diameter holes 4 at a base end, a baffle 5 at a substantially central portion, and a distal end facing the inflow pipe 2. And a refrigeration apparatus by sequentially connecting the compressor a, the four-way valve b, the outdoor heat exchanger c, the expansion mechanism d, the indoor heat exchanger e, and the like. .

However, in order to reduce the pressure loss between the holder 9 and the outlet pipe 3 and to send an appropriate amount of refrigerant to the outlet pipe 3, an appropriate clearance is provided between the outlet pipe 3 and the holder 9. Since it is necessary to secure the casing, it is difficult to reduce the size of the casing 1 by reducing the length in the longitudinal direction.

[0004]

SUMMARY OF THE INVENTION In view of the above problems, the present invention aims to reduce pressure loss,
An object of the present invention is to provide an accumulator that can be reduced in size.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a tubular casing provided with a compressor constituting a refrigeration system and having a refrigerant inlet pipe at one end; A filter provided on the inner wall of the casing in close proximity to the filter and held by a holder having a through hole through which the coolant flows, and a plurality of small-diameter holes provided at the base end, which are introduced into the casing from the other end. An outflow pipe having a distal end portion arranged so as to face the inflow pipe, and a part of the holder facing the outflow pipe, while bulging toward the inflow pipe side,
While the filter is formed corresponding to the shape of the bulging portion, the tip of the outflow pipe extends to the bulging portion, and an auxiliary small diameter hole is provided on the outer peripheral surface of the bulging portion. ing.

Further, a predetermined gap is provided between the inner peripheral surface of the bulging portion and the extending portion of the outflow pipe.

Further, a plurality of the auxiliary small diameter holes are provided.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as examples. The configuration of a refrigeration system using a compressor provided with an accumulator according to the present invention is described with reference to FIGS.
Therefore, the description is omitted because it is the same as the conventional technology described above based on the above.

As shown in FIG. 2, a part of the holder 9 facing the outflow pipe 3 introduced into the casing 1 bulges toward the inflow pipe 2 and a filter 8 corresponding to the shape of the bulge. On the other hand, the distal end of the outflow pipe 3 extends to the bulging portion, and an auxiliary small-diameter hole 4 ′ is provided on the outer peripheral surface of the bulging portion. The structure in which the size in the longitudinal direction can be reduced so that the size can be reduced.

Further, by providing a predetermined gap between the inner peripheral surface of the bulging portion formed in the holder 9 and the extending portion of the outflow pipe 3, a gap between the holder 9 and the outflow pipe 3 is provided. Pressure loss is reduced, and an appropriate amount of refrigerant can be sent to the outflow pipe 3.

Further, by providing a plurality of the auxiliary small-diameter holes 4 ', it is possible to ensure a proper circulation amount of the refrigerant. The auxiliary small-diameter hole 4 'is formed to have a small diameter so as to prevent a so-called liquid back phenomenon from occurring even when the portion is immersed in a liquid refrigerant. Has become.

With the above configuration, as shown in FIG. 2, a part of the holder 9 facing the outflow pipe 3 introduced into the casing 1 bulges toward the inflow pipe 2 and has the shape of the bulging portion. Correspondingly, while forming the filter 8, the tip of the outflow pipe 3 extends to the bulging portion, and an auxiliary small-diameter hole 4 ′ is provided on the outer peripheral surface of the bulging portion. The accumulator can be reduced in size by reducing the dimension in the direction.

[0013]

As described above, according to the present invention, there is provided an accumulator capable of reducing the pressure loss and reducing the size.

[Brief description of the drawings]

FIG. 1A is a perspective view of a compressor provided with an accumulator according to the present invention and a conventional example, and FIG. 1B is a circuit diagram of a refrigeration apparatus including the compressor and the like.

FIG. 2 is a longitudinal sectional view of an accumulator according to the present invention.

FIG. 3 is a longitudinal sectional view of a conventional accumulator.

[Explanation of symbols]

 Reference Signs List a compressor b four-way valve c outdoor heat exchanger d expansion mechanism e indoor heat exchanger f accumulator 1 casing 2 inflow pipe 3 outflow pipe 4 small diameter hole 4 'auxiliary small diameter hole 5 baffle 6 filter section 7 through hole 8 filter 9 holder

Claims (3)

[Claims] Claims: 1. A refrigeration apparatus is provided with a compressor.
A cylindrical casing having a refrigerant inflow pipe at one end, a filter provided on an inner wall of the casing close to the inflow pipe, and held by a holder having a through hole through which the refrigerant flow passes; And an outlet pipe having a plurality of small-diameter holes at a base end and arranged so that a front end thereof is opposed to the inlet pipe, and a part of the holder facing the outlet pipe. While swelling to the inflow pipe side and forming the filter corresponding to the shape of the swelling section, the tip of the outflow pipe extends to the swelling section, and the outer peripheral surface of the extension section An accumulator characterized in that an auxiliary small hole is provided in the accumulator. 2. The accumulator according to claim 1, wherein a predetermined gap is provided between an inner peripheral surface of the bulging portion and an extending portion of the outflow pipe. 3. The accumulator according to claim 1, wherein a plurality of auxiliary small diameter holes are provided.