JPS592799B2 - Compressor manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a closed container for a compressor, in which a pipe connected to a compressor body is inserted.

Conventionally, the pipe connected to the compression main body is constructed by providing a circular hole in a closed container with a diameter 2 to 3 mrtt larger than the outer diameter of the pipe and inserting the pipe into the hole to configure the compressor.
However, when there are two or more pipes, simultaneous insertion becomes difficult.

Furthermore, since there is a gap between the hole provided in the sealed container and the outer periphery of the pipe after insertion, spatter may enter during welding and interfere with the normal operation of the compressor.

In the present invention, a compressor main body is formed by an electric motor, a compressor machine part, and a pipe connected to the compressor machine part, and the compressor main body is housed in one of the divided cases, and the pipe is installed in the other case. On the other hand, an elliptical pipe hole is formed which has an upward angle from the inside to the outside, and extends vertically.The pipe hole is passed through the pipe, and the other case is fitted into one case, and then both the above-mentioned cases are fitted. A method of joining the case, the pipe, and its hole to facilitate the insertion of the pipe integrated with the compressor body into the compressor sealed container, and to create a gap between the pipe and the sealed container after insertion. This is to prevent spatter from entering during welding, and one embodiment will be described in detail below with reference to the drawings.

In the figure, reference numeral 1 denotes a compressor unit in which an electric motor 2, a compressor machine part z1, a suction pipe 3 connected to the compressor machine part z1, and a discharge pipe 4 leading to a precooler (not shown) are assembled together. , this unit 1 is internally suspended by a spring 6 in a lower container 5 forming a closed container.

The upper container 7 has two pipes 3 arranged in the vertical direction.
, 4 (horizontal in this embodiment), elliptical pipe holes 8 and 9 are provided, which are angled upward from the inside to the outside, and extend in the vertical direction.

Both pipes 3 and 4 are passed through the pipe holes 8 and 9 of the upper container γ as shown by the dotted lines in FIG. 1 before being attached to the lower container 7, and then the upper container 7 is inserted into The upper container 7 is fitted into the container 5 by rotating in the direction, and the fitting portion, the pipes 3 and 4, and the pipe holes 8 and 9 are welded to form a hermetic compressor.

In the above structure, when connecting the two pipes 3 and 4, it is possible to insert them into the oval holes 8 and 9 of the upper container 7 without applying excessive force to the suction pipe 3 and the discharge pipe 4,
In addition to making the insertion work easier, it also prevents damage to the pipes 3 and 4, and after insertion, the gaps between the pipes 3 and 4 and the pipe holes 8°9 are adjusted in the vertical direction of the pipe holes 8 and 9. By having an elliptical shape and an upward angle from the inside to the outside, it can be made extremely small as shown in Figure 2, thereby preventing spatter from entering during welding.

In this way, the present invention forms a compressor main body by an electric motor, a compressor machine part, and a pipe connected to the compressor machine part, and this compressor main body is housed in one of the divided cases, and the pipe is installed in the other case. Forming an elliptical pipe hole in the vertical direction with an upward angle from the inside to the outside with respect to the installation direction, and fitting the other case into the one case by passing the pipe through the pipe hole, This method then joins the cylindrical case, the pipe, and its hole, so that it is easy to insert the pipe integrated with the compressor body into the compressor sealed container, and there is a gap between the pipe and the sealed container after insertion. Since there are no gaps between the two, it is possible to prevent spatter from entering during welding, which is of great practical value.

[Brief explanation of drawings]

FIG. 1 is a partial external appearance of a compressor according to an embodiment of the present invention. FIG. 2 is a sectional view of part A in FIG. 1, and FIG. 3 is an external view of the pipe and the upper container after insertion is completed. 1...°...Compressor unit (compressor main body), 3...
...Suction pipe (pipe), 4...
Discharge pipe (pipe), 7... Upper container, 8, 9
・・・・・・Pipe hole.

Claims (1)

[Claims] 1 The compressor body is formed by the electric motor, the compressor machine part, and the pipes connected to the compressor machine part.The compressor body is housed in one of the divided cases, and the pipe is installed in the other case in the direction in which the pipes are installed. , forming an elliptical pipe hole with an upward angle from the inside to the outside and extending vertically; passing the pipe through the pipe hole, and fitting the other case into the one case at steps 1 to 1; A method for manufacturing a compressor in which both of the cases, the pipes, and their holes are then joined.