JPS61129482A - Fixing device of accumulator - Google Patents

Abstract

PURPOSE:To prevent shift of position of an accumulator during transportation by facilitating coating work so as not to generate gas between a tube and the outer periphery of the accumulator by fitting a heat shrinking tube to the outer periphery of the accumulator. CONSTITUTION:A heat shrinking tube 11 is fit to an outer periphery of an accumulator 4 and a band 3 is put to the outer periphery of the tube 11. Engaging units 3a, 3a on both sides of the band 3 are engaged with a fixing metal fitting 2 fixed to a sealing vessel 1 to fix the accumulator 4. And the entire compressor is heated in a drying furnace, and the tube is shrunk so as not to generate gap between with the accumulator 4 and coating work is facilitated by preventing paint and pre-coating process liquid from entering.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an accumulator fixing device that has an improved fixing structure for an accumulator provided in a compressor.

[Technical background of the invention and its problems]

In an air conditioner, a compressor with an accumulator fixed to the side (1) is used to compress the refrigerant, but this accumulator is fixed as shown in Figs.
In advance, install the notches on both sides of the side wall of the compressor 1;
A method of fixing the accumulator 4 by welding a fixing metal fitting 2 equipped with la, :la, and locking a band 3 made of a spring steel plate having locking parts 3g and 3m at both ends to this fixing metal fitting 2. was taken. This method has the disadvantage that since it is fixed by the tightening force of the band 3, the mounting position of the accumulator 4 changes due to the impact of the vehicle during transportation, causing the pipe 5 to bend. In addition, if the tightening force of the band 3 is large, the above-mentioned drawbacks can be solved, but after the band 3 is attached to the accumulator 4, a large force is required to attach the band 3 to the fixing bracket 2, making the installation work difficult. When it came down to it, it had a certain luster.

Furthermore, since the band 3 is attached directly to the accumulator 4, there is a problem in that the band 3 becomes a medium for vibration transmission when the compressor 1 is operated, and noise is excited.

Therefore, a method was adopted in which the band 3 was attached after wrapping the rubber sheet 6 around the accumulator 4 (2), but since adhesive tape was used to wrap the rubber sheet 6, the workability was poor and inefficient. Not only does this become a cause of cost increase, but as shown in FIG. A gap G is created between the two. And this gap G
In the K painting process, there was a problem in that paint and pre-painting treatment liquid invaded, resulting in paint defects.

[Purpose of the invention]

The present invention has been made in consideration of the above circumstances, and it is an object of the present invention to provide an accumulator fixing device that is easy to operate, has a large tightening force against the accumulator, and has low noise.

[Summary of the invention]

In order to achieve the above object, this invention fits a heat-shrinkable tube around the outer periphery of an accumulator [-1] through this tube. The accumulator is fixed to a fixing fitting fixed to the compressor by fitting the band with the compressor.

[Examples of actual inventions]

Hereinafter, a practical example of the present invention will be described with reference to FIGS. 1 to 4, in which the same components in FIGS. 5 to 7 are given the same reference numerals. Reference numeral 11 in FIG. 1 is a heat-shrinkable tube whose main component is, for example, ethylene propylene rubber (F, PR). By heating for several minutes to 10 minutes, the inner diameter becomes D2.
It shrinks to D , > D 2, and at the same time its thickness decreases to 1
．． increases to t, and 1. <1. It has the characteristic that

Next, a method for fixing the accumulator 4 to the compressor 1 using this tube 11 will be explained.
1 is fitted onto the outer periphery of the accumulator 4, and a tape (not shown in the figure) is used to prevent it from falling off.Next, the band 3 is attached to the position where the tube 11 is fitted, and the locking parts 3a at both ends of the band 30, 3a is elastically fitted in advance into the notches 2a, 2a of the fixture 2 welded to the outer periphery of the compressor 1. At this time, a gap G is created between the accumulator 4 and the tube 11. Then, Accumulator 4
After connecting the lower end pipe 5 to the compressor 1, the tube 11 is placed in an electric furnace or a compressor drying oven and dried at 120'C to 160'C for several minutes to 10 minutes, so that the tube 11 will shrink. As shown in Figure 8g4, it comes into close contact with the outer periphery of the accumulator 4, and the above-mentioned gap G disappears. tube 1 at the same time
) becomes thicker, so the tightening force of the band 3 increases.

In the above embodiment, tube 1 is connected to band 3.
Although it is only fitted in the portion that contacts the outer periphery of the accumulator 4, it may also be provided over the entire length of the accumulator 4, which has the effect of further reducing noise generation.

〔Effect of the invention〕

As explained above, in this invention, a heat-shrinkable tube that shrinks when heated is fitted to the outer periphery of the accumulator, and a band is fitted through this tube to fix it to the compressor. This configuration makes it easy to attach the accumulator to the compressor and improves operability.

In addition, since there is no gap between the tube and the outer circumference of the accumulator, painting work is not only easier, but also noise is reduced, and the increased tightening force prevents the accumulator from shifting during transportation, which can lead to accidents. It has the great effect of preventing people from being hit.

[Brief explanation of the drawing]

Figures 1 to 4 show an example of this invention. Figure 1 is a cross-sectional plan view showing the state before heating with the accumulator fixed to the compressor. Figure 2 shows the tube before heating. A perspective view, Figure 3 is a perspective view showing the tube after heating, Figure 4 is a cross-sectional plan view showing the state after heating the accumulator after fixing it to the compressor, and Figure 5 shows the accumulator fixed to a conventional compressor. 61'A is an exploded perspective view showing the order in which the accumulator is attached, and FIG. 7 is a cross-sectional plan view showing the accumulator fixed to the compressor. 1... Compressor, 3... Band, 4... Accumulator X 1... Tube. Applicant's representative Patent attorney Takehiko Suzue Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] A heat-shrinkable tube whose diameter and thickness change when heated is fitted to the outer periphery of the accumulator attached to the compressor, and a band is fitted through this tube to secure the accumulator to the compressor. Accumulator fixing device.