JPH0246868B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an accumulator for a refrigerator that performs gas-liquid separation of refrigerant sucked into a compressor in a refrigeration cycle.

Structure of a conventional example and its problems First, the structure of a general refrigeration cycle and a refrigerating machine accumulator will be explained with reference to FIG.

As shown in Figure 1, a typical refrigeration cycle consists of a compressor a, a condenser b, a pressure reducer c, an evaporator d,
It consists of an accumulator e. Note that the accumulator e is connected to the compressor a by a pipe f.

In a typical refrigeration cycle, refrigerant is circulated from a compressor a through a condenser b, a pressure reducer c, an evaporator d, an accumulator e, and a pipe f to the compressor a.

In the conventional accumulator, as shown in Fig. 1, one end of the pipe f is fixed at the penetration part g of the compressor a, and the approximately central part h of the pipe f is fixed to the constricted part of the container of the accumulator e. However, the other end inside the container of the accumulator e was not fixed and was a free end.

In this way, in conventional accumulators, the tip of the inner tube inside the accumulator container is not fixed and is a free end, so the inner tube tends to resonate during operation, resulting in a structure that tends to generate vibration and noise. was. In addition, because of the cantilevered structure, it has the disadvantage that it can break or bend if it is not designed with sufficient strength. Furthermore, if the inner tube bends and comes into contact with the accumulator container during transportation or operation, abnormal vibrations and noise are generated during operation.

OBJECTS OF THE INVENTION In view of the above-mentioned conventional drawbacks, the present invention aims at reducing vibration and noise by connecting the tip of the inner tube inside the accumulator container to the accumulator container.

Structure of the Invention In order to achieve this object, the present invention is such that the tip of the inner tube extending inside the accumulator is fixed to the inner wall of the accumulator container.

This configuration prevents the tip of the inner tube from wobbling,
This is aimed at reducing noise and vibration.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to FIGS. 2 and 3 of the accompanying drawings.

First, a first embodiment will be explained with reference to FIG.

In the figure, reference numeral 1 denotes an inhalation pipe, which is joined to a side wall of a container 2 at a portion A. The suction pipe 1 is connected to an evaporator (not shown). 3 is a strainer, 4 is a partition plate, and the strainer 3 is fixed by this partition plate 4. Moreover, the partition plate 4 is
It is press-fitted and fixed to the container 2. Note that a plurality of holes 4a are formed in the partition plate 4. Reference numeral 5 denotes an inner pipe, and in this embodiment, one end is connected to a compressor (not shown). Further, the inner tube 5 is fixed to the container 2 at a portion B at the bottom of the container 2. 2a is a small hole formed in the peripheral wall of the container 2, and the inner tube 5 is inserted into the small hole 2a.
The tip of the container 2 is joined to the peripheral wall of the container 2 and fixed by welding c. Note that one hole 5a is formed in the lower part of the inner tube 5 inside the container. Furthermore, in this embodiment, the pipe connecting the accumulator and the compressor is the same as the inner pipe.

Next, the flow of refrigerant within the accumulator will be explained. The refrigerant flows from the suction pipe 1 and enters the container 2. On the way, dust and foreign matter inside the refrigeration cycle are removed by the strainer 3 and flowed through the hole 4a of the partition plate 4. The refrigerant that has flowed into the container 2 flows through the inner pipe 5 to the compressor. Note that the hole 5a of the inner tube 5 is a hole for returning the refrigerating machine oil accumulated in the container 2 to the compressor. Furthermore, the inner tube 5 within the container 2 is extended as close to the partition plate 4 as possible to prevent liquid from returning.

Next, another embodiment of the present invention will be described with reference to FIG.

In Fig. 2, we have explained the case where the pipe connecting the accumulator and compressor is the same as the inner pipe, but in the case of Fig. 3, the pipe connecting the accumulator and compressor is different from the inner pipe. Indicate the case.

In FIG. 3, 6 is a pipe that connects the accumulator and the compressor, and is separate from the inner pipe 5. Inner tube 5
One lower end D of is fixed to the partition plate 4 by welding. The upper tip of the inner tube 5 is fixed to the container 2 by welding. One hole 4b is formed in the partition plate 4. Note that the other numbers have the same configuration as in FIG. 2, so their explanations will be omitted.

Next, the flow of refrigerant within the accumulator will be briefly explained. The refrigerant flows into the suction pipe 1 and enters the container 2.
Go inside. The refrigerant then flows through the inner pipe 5, strainer 3, and connecting pipe 6 to the compressor. Note that the hole 4b of the partition plate 4 is a hole through which refrigerating machine oil accumulated in the container 2 is returned to the compressor.

Effects of the Invention As is clear from the above embodiments, in the accumulator for a refrigerator of the present invention, the tip of the accumulator inner tube extending upward from the bottom of the container inside the container is fixed to the inner surface of the peripheral wall of the container. By fixing both ends of the inner tube, vibration and noise during operation can be reduced. Moreover, since it does not have a cantilevered structure, the inner tube can be easily designed, and the inner tube is less susceptible to vibrations during transportation and operation. This has the advantage of preventing abnormal vibrations or noise from coming into contact with bent containers during operation.

[Brief explanation of drawings]

Fig. 1 is a diagram of a refrigeration cycle equipped with an accumulator showing a conventional example, Fig. 2 is a sectional view of an accumulator showing a first embodiment of the present invention, and Fig. 3 is a diagram of an accumulator showing a second embodiment of the present invention. FIG. 2... Container, 2a... Small hole, 5... Inner tube.

Claims (1)

[Claims] 1 An accumulator is provided between an evaporator and a compressor constituting a refrigeration cycle, and is directly connected to an inlet of a compression mechanism section of the compressor through a pipe line, and an upper peripheral wall of a container constituting the accumulator is provided. A small hole is provided, and an upper end portion of the accumulator inner tube extending vertically within the container is joined to the container at the small hole portion by welding means, and a lower portion of the accumulator inner tube is connected to the container by welding means. An accumulator for a refrigerator in a fixed state.