JPS588949Y2 - Compressor connector part - Google Patents

Description

[Detailed Description of the Invention] In this invention, especially in a compressor for compressing refrigerant, the connector portion of the compressor is tightened by providing a check valve for gas charging on a bolt.

Refrigerant circulated in a refrigeration cycle or similar cycle must be injected into the refrigeration cycle externally.

Therefore, a check valve is provided for injecting refrigerant during the cycle, and refrigerant can be injected through this check valve.

However, since conventional check valves of this type were installed in the piping during the cycle, special piping with the check valve attached was required, which complicated the piping work, and the check valve was installed in the piping. Welding work is required to attach this, and the installation has the disadvantage of being cumbersome.

Therefore, in order to eliminate the above-mentioned drawbacks, this invention was created by focusing on installing the check valve on the bolt that tightens the connector part of the compressor. Holes are formed and check valves are installed in several companies, and a passage is formed in the compressor body that connects the several companies and the compressor to facilitate the installation of check valves and to reduce piping work. The aim is to make it possible to standardize the standards.

Next, an embodiment of this invention will be explained with reference to the drawings.

In the figure, a cross section of the connector part of the compressor of this invention is shown, and 1 is a body of an axial type compressor, for example, and this body 1 has an inlet 2 that communicates between the outside and the suction chamber 17, and an inlet 2 that communicates between the outside and the discharge chamber. An outlet 3 communicating with the outlet 18 is formed.

The inlet vibrator 4 and the outlet vibrator 5 inserted into the population 2 and the outlet 3 are for connecting the compressor to other equipment in a refrigeration cycle or a similar cycle, and the inserted tip Flanges 4a and 5a are formed in front of each other.

Moreover, 01J rings 6 and 7 are interposed between the entrance vibrator 4 and the outlet vibrator 5 and the machine body 1, so as to maintain the confidentiality of this part.

The holding plate 8 has three holes 8a, 8b, 8c formed therein, and the inlet vibrator 4 and the outlet vibrator 5 are inserted into the holes 8a, 8b formed on both sides.
is inserted, and the collars 4a and 5a of both pipes 4 and 5 are held between the peripheries of holes 8ay8b on both sides of presser plate 8 and the upper surface of body 1, thereby fixing both pipes 4 and 5.

In this embodiment, the collars 4a of both pipes 4 and 5 are
, 5a is fixed by being held between the holding plate 8 and the machine body 1, but it goes without saying that in other embodiments, the holding plate 8 and both pipes 4 and 5 may be fixed by welding or the like. It is.

The tightening bolt 9 is inserted into the central hole 8c of the holding plate 8,
The tightening is performed by screwing the male threaded portion 9a of the bolt 9 into the female threaded hole 10 formed in the body 1, and the head 9b of the bolt 9 coming into contact with the periphery of the hole 8c in the center of the holding plate 8. The holding plate 8 is fastened to the body 1 side.

For tightening, use 01J ring 1 between bolt 9 and machine body 1.
3 is interposed to keep this part confidential.

The check valve mounting hole 11 is formed to pass through the bolt 9 in the axial direction, and has a stepped portion 11a formed in the center, and an internal thread 11b formed above the stepped portion 11a. .

Further, the upper end of the check valve mounting hole 11 is closed by a plug 14 which is screwed into the bolt 9.

The check valve 12 is commonly called a worm, and the threaded portion 12b of the check valve 12 is connected to the female thread 1 of the hole 11.
1b, and the central flange portion 12a engages with the stepped portion 11a of the hole 11 and is attached to the hole 11, and by pressing the plunger 12c at the upper end, a communicating state is established. , when the pressure is released, the restoring force of the spring disposed inside is activated, and it is configured to return to the original closed state.

The communication hole 15 is formed from the lower end of the female screw hole 10 into which the bolt 9 is screwed to the suction port or suction chamber 17 on the suction side of the compressor (not shown). When tightened, a passage 16 is formed which communicates the check valve hole 11 of the bolt 9 with the suction side of the compressor.

In the above configuration, in order to inject refrigerant into a refrigeration cycle or a similar cycle, first remove the plug 14 from the tightening bolt 9, then attach the refrigerant injection hose to the tightening bolt 9. The pin provided at the inner end of the refrigerant injection hose is the plunger 12 of the check valve 12.
Since the check valve 12 is pressed, the check valve 12 is brought into communication.

This allows the refrigerant injection hose to communicate with the suction side of the compressor, so that the refrigerant is sucked in by the negative pressure on the suction side of the compressor and guided to the suction side of the compressor.

As described above, according to this invention, the inlet vibrator and outlet vibrator connected to the compressor are tightened at the connector part of the compressor, which is fixed via a holding plate tightened to the machine body side with bolts. For tightening, check valves are provided on the bolts, so piping during the refrigeration cycle or similar cycles (check valves must be installed) is better. This makes it possible to connect devices, making piping work easier and standardizing piping work.

In addition, since the check valve is tightened by attaching it to the check valve mounting hole formed in the bolt, it takes up less space, and since no welding work is required when installing the check valve, it is easy to install. It is possible and easy to replace.

Furthermore, in the case of compressors in automobiles, the connector portion of the compressor is usually located at a position where it is easy to work, so it has the effect of making refrigerant injection work easier.

[Brief explanation of the drawing]

The figure is a sectional view showing the connector section of the compressor of this invention. 1... Compressor body, 2... Inlet, 3... Outlet,
4... Inlet vibe, 5... Outlet vibe, 8... Holding plate, 9... Bolt for tightening, 11... Hole for installing check valve, 12... Check valve, 16... ·aisle.

Claims (1)

[Scope of utility model registration request] The inlet vibrator and the outlet vibrator inserted into the inlet and outlet of the compressor, respectively, are screwed onto the body of the compressor and fixed via a holding plate tightened with bolts. In the connector part, the tightening is performed by forming a hole for installing a check valve in the bolt, installing a check valve in several companies, and forming a passage in the body that communicates the several companies with the suction side of the compressor. Compressor connector 凰 featuring