JPS6149182A - Method of positioning internal discharge pipe in compressor - Google Patents

Abstract

PURPOSE:To prevent an internal discharge pipe in a closed type compressor from making in contact with a compressor assembly and a casing, and as well to make it possible to decrease the gap between a closed container and the assembly, by fitting the internal discharge pipe in the assembly so that the discharge pipe is made in contact with the assembly, and then by positioning the pipe with the use of a support member. CONSTITUTION:An internal discharge pipe 15 is connected to an assembly 2 in a compressor so that the pipe 15 is made in contact with the outer periphery of the assembly 2. Further, the pipe 15 is forced to be separated from the outer periphery of the assembly 2 and a support member 16 is inserted therebetween to position the discharge pipe 15. Thereafter, the assembly is inserted in a casing 1 for assembling. Thus, the internal discharge pipe 15 is urged toward the assembly 2, and therefore, it never moves outward. Accordingly, the gap between the assembly 2 and the casing 1 may be made small with no margin therefor.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) This invention mainly applies to pressure 1i? I (m
A method for positioning an internal discharge pipe is to install an assembly having a compression element in a sealed casing that connects an external discharge pipe, and to position the compression element and the external discharge pipe along the outer peripheral surface of the assembly. The present invention relates to a method for positioning an internal discharge pipe in a compressor that is connected via a detour internal discharge pipe.

(Prior Art) A conventional compressor is described in, for example, Japanese Utility Model Application Publication No. 58-73983, and as shown in FIG. 7, a casing (1)
An assembly (2) formed by integrally assembling a motor (3) and a compression element (4) is installed inside the casing (
1) to the suction pipe (10) and the external discharge pipe (11), respectively, while connecting the discharge side of the compression element (4) to 1j1.
1. The external discharge pipe (11) is connected via an internal discharge pipe (15) that bypasses the assembly (2), and the compression element (4) is As a result of the operation, the refrigerant contained in the casing (1) is sucked into the compression element (4) from the suction pipe (10), and this refrigerant is compressed by the compression element (4). The liquid is discharged from the internal discharge pipe (15) to the outside of the casing (1) via the external discharge pipe (11).

However, when piping the internal discharge pipe (15), the protection pipe (IS) comes into contact with the 111I canong (1) and the assembly (2) due to the vibration of the internal discharge pipe (15) during operation. In order to prevent the above-mentioned casing (1) and the above-mentioned ill solid body (2), a space with a width of more than half of the width is provided between the casing (1) and the above-mentioned ill solid body (2), and the discharge pipe (15) is passed through the center of the space. Furthermore, the internal discharge pipe (15) was formed by brazing connections at multiple points along the way, and the dimension of the internal discharge pipe (15) was F+'.
J degree?'! ! °, taking into consideration, 1lii
The internal orientation tube (15) was designed to be larger by adding 1.T to the space between the casing (1) and the fill solid body (2).

(Problem to be Solved by the Invention) However, when installing the internal discharge pipe (15) as described above, a gap between the casing (1) and the x solid body (2) is formed in advance to be large, and this gap is filled with When the internal discharge pipe (15) is inserted, the casing (1) becomes larger and the entire compressor costs $7. The purpose of the present invention is to devise a piping method for the internal discharge pipe so that it can be easily connected to the casing and the assembly of the surface-oriented piping while having a simple structure. The object of the present invention is to prevent contact between the casing and the casing, and to reduce the size of the casing.

(Measures U2 for Solving Problems) The configuration of the present invention will be explained based on FIGS. After 111 years of piping, I went to the front of the shrine;! B
The discharge pipe (15) is connected to a support 1-+f body (16) made of an elastic body.
According to 1];j, if the internal discharge pipe (15) is positioned by supporting the leg assembly (2) so as to be spaced apart in the outer circumferential direction, the gap between the assembly (2) and the casing (1) will be Focusing on the fact that the casing (1) can be downsized, the internal discharge pipe (15) is divided into the compression element (4) and the external discharge pipe (11). After the pipe (15) is connected so that it contacts the outer circumferential surface of the X-solid (2), the inner discharge pipe (15) is made of an elastic body and the contact portion between the inner discharge pipe (15) and the outer circumference surface is connected to the inner discharge pipe (15). 1
5) is interposed with a support body (16) that presses one inch in the direction of separating the internal discharge pipe (15) from the outer circumferential surface, so as to elastically support the internal discharge pipe (15).

(Function) Since the internal discharge pipe (15) is arranged so as to be in contact with the assembly (2), t);
5), +]'+Ki support 1, Araki (1G) is interposed (J), and by just placing #4 slightly on the 1lii K/ring (1) side, a large amount is attached to the discharge pipe (15). The elastic force is in
1) Even if the gap between the 11th discharge pipe (15) and the assembly (2) is small, there is no contact between the discharge pipe (15) and the assembly (2). rii+ support (
16) and the internal discharge pipe (15).
) to the casing (1) side can be made smaller than before, and as a result, the distance between the casing (1) and the assembly (2) can be made smaller than before. This makes it possible to downsize the //g (1).

(Example) Hereinafter, a method for positioning an internal discharge pipe in a compressor according to the present invention will be explained by referring to an example shown in the drawings.

5 and 6 show a compressor embodying the present invention, in which an assembly (2) is enclosed in a hermetic casing (1), and this assembly (2) is comprised of: -7 Nog (1) is composed of a motor (3) placed at the inner upper part and a positive phase 1 element (4) placed at the inner lower part.

11; j compression element (4)
It consists of a plurality of cylinders (6) formed in the frame (5) and a piston (7) installed inside each cylinder (6) so as to be able to freely reciprocate. The crankshaft (8) is supported, and the piston (7) is interlocked with the eccentric shaft (8a) of the crankshaft (8). (8)
By reciprocating the piston (7) with the rotation of the refrigerant, refrigerant is sucked into the cylinder (6) and compressed.

In addition, on the top of the case (1) of No. 1111, there is a
A suction pipe (10) communicating with the housing (1) is connected, and the refrigerant that has entered the housing (1) from the suction pipe (10) is formed in the frame (5). intake passage (9
An external discharge pipe (11) is connected to the lower side of the cylinder (1) so as to inhale into the cylinder (6) through the cylinder (6). A cylinder 1 cover (13) having a discharge passage (12) communicating with the cylinder (6) is attached to the outside of the frame (5) facing the cylinder (6), and the discharge passage of this cylinder upper cover (13) is attached. (12) Muffler (1
4), and the muffler (14) and the external discharge pipe (1) are provided.
1), an internal discharge pipe (15) which is detoured along the outer peripheral surface of the assembly (2) described in 1lii is connected between ff'
The refrigerant compressed in the cylinder (6) is transferred to the internal discharge pipe (
15) and an external discharge pipe (11) to the outside of the Canong (1).

Therefore, when piping the internal discharge pipe (15), the following steps were taken.

That is, first, as shown simply in FIG.
) The muffler (14) described in 1) and the external discharge pipe (11) are connected so as to touch the outer peripheral surface of the assembly (2) described in +iii, and the piping II is thus connected.
*;t. Next, as shown in Figure 2,
The outer peripheral surface of the assembly (2) and the internal discharge pipe (1)
A support body (16) made of an elastic body and pressing the internal discharge pipe (15) in the direction of separation from the outer peripheral surface of the assembly (2) is interposed at the contact portion with the assembly (2).

Thus, as shown in FIG. 3, the support body (1G) connects the 1);
2) is elastically positioned and supported at an outer circumferential position a predetermined distance from the outer circumferential surface.

In the embodiment shown, the internal discharge pipe (15) depends downwardly from the top of the muffler (14) along the assembly (2) and the bottom of the compression element (4) in the assembly (2). is bypassed and raised above the tlil assembly (2), and is again allowed to hang down along the assembly (2), going around the lower part of the compression element (4), and ff1i
The support f, 7 bodies are connected to the external discharge pipe (11), and the support f, 7 bodies are attached to the portion of the internal discharge pipe (15) which is detoured in this way and is moved up and down along the assembly (2). (
16) is interposed so that the internal discharge pipe (15) 11f is positioned and supported by the support (16) at the outer peripheral position of the assembly (2).

As shown in detail in FIG. 4, the support body (16) is formed of a band-shaped spring plate in the shape of a mountain, and has contact pieces (16a) (16a) on both sides in the length direction for contacting the m solid body (2). At the same time, when positioning the inner oriented outlet pipe (15),
Each contact piece (16a) (16a) of the support (16)
) are brought into contact with the outer circumferential surface of the assembly (2), respectively, and the internal orientation tube (15) described in 1lii is locked in the locking portion (16b) of the support (1G).

In the illustrated embodiment, the support t, lf body (16) is 1liii
Position the outer circumferential surface of the rack +l117 (5) in the compression element (4), and at this position [);
5), but in order to position and support this internal discharge pipe (15), a 16) so that the motor cover (17) positions and supports the internal discharge pipe (15).

Further, in the illustrated embodiment, one support body (16) is used to position and support the internal discharge pipe (15), but in the present invention, a plurality of the support bodies (16) are used,
It is also possible to position and support 15 mm internally oriented tubes.

(Effects of the Invention) As explained above, in the method for positioning an internal discharge pipe according to the present invention, first, the internal discharge pipe is placed between the compression element and the outside m+discharge pipe, and the inside; The connecting pipes are connected so that they are in contact with each other, and then a support member made of an elastic body is provided at the contact portion between the outer periphery of the assembly and the inner discharge pipe, and presses the inner discharge pipe in a direction that separates the inner discharge pipe from the outer circumferential surface. and the support body connects the internal discharge pipe to the R11.
(from the solid body) i: Because it is elastically supported at a position a distance away from the outer periphery, even though the internally oriented pipe described in ll'l is installed close to the assembly, when the compressor is operating, the above) It is possible to prevent the S discharge pipe from coming into contact with the assembly and the casing due to vibrations, etc. In other words, the internal discharge pipe can be prevented from coming into contact with the assembly or the casing. Moreover, the gap between the assembly and the casing can be made smaller than before, since the discharge pipe can be installed close to the assembly and the casing without coming into contact with the assembly or the casing. This has made it possible to downsize the casing and, by extension, the compressor.

[Brief explanation of the drawing]

Figures 1 and 2 are explanatory diagrams for explaining the positioning method of the internal discharge pipe according to the present invention, Figure 3 is a partially cutaway slope view of positioning the internal discharge pipe by the opening force method, and Figure 4 5 is an enlarged front view of the support, FIG. 5 is a longitudinal section showing the overall structure of the compressor according to the present invention, and FIG. 6 is a cross-sectional plan view thereof.
FIG. 7 is a longitudinal sectional view showing a conventional example. (1)...Casing (2)...Assembly (4)...Compression element (11)...External discharge pipe (15)... ... Internal discharge pipe (16) ... Support applicant Daikin Industries, Ltd. Figure 11 Figure 2 Figure 6

Claims (1)

[Claims] An assembly (2) having a compression element (4) is installed inside a closed casing (1) to which an external discharge pipe (11) is connected, and
An internal discharge pipe (1) detouring the compression element (4) and the external discharge pipe (11) along the outer peripheral surface of the assembly (2).
5) A method for positioning an internal discharge pipe in a compressor connected through the internal discharge pipe (15).
is connected to the compression element (4) and the external discharge pipe (11) so that the internal discharge pipe (15) contacts the outer peripheral surface of the assembly (2), and then the internal discharge pipe (15) A support body (16) made of an elastic body that presses the internal discharge pipe (15) away from the outer peripheral surface is interposed at the contact portion between the inner discharge pipe (15) and the outer peripheral surface. A method for positioning an internal discharge pipe in a compressor, characterized in that the internal discharge pipe is elastically supported.