JPS6166885A - Rotary compressor partition plate holding device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a partition plate holding device for a rotary compressor, which easily and reliably holds the partition plate and which provides stable elastic force to the blades. and prevents the vertical vibration of the elastic linear spring.

Conventional Structure and Problems In general, in a rotary compressor, as shown in FIG. It is divided into a high pressure side and a low pressure side by a partition plate 10 that protrudes from the wall surface.

In order to keep the inner surface of the partition plate 10 in constant contact with the outer surface of the eccentric rotor 6, a coil spring or S-shaped sliding ring 16 is installed between the outer surface of the partition plate 1° and another stationary support. It is installed in

However, in the case of a support such as a coil spring, not only does the spring occupy a considerable amount of space, but also the partition plate is supported in one place, so only one
The pressing force on the eccentric rotor is not uniform, causing wear and performance deterioration.

In addition, in the case of support such as the S-shaped elastic linear spring 16,
At a specific frequency, vertical vibrations may occur in the axial direction, which poses problems in terms of service life and noise characteristics for the compressor.

Purpose of the Invention The present invention solves the above-mentioned problems of the conventional art by easily and reliably holding the partition plate, imparting a stable and uniform elastic force to the blades, and providing elastic linear force to the blades. Structure of the invention whose purpose is to prevent vertical vibration of the spring. The end portion of the partition plate is made to protrude from the stepped portion, and a connecting portion of an elastic linear spring formed by bending an elastic wire bent in a U-shape into a semicircle is attached to the protrusion portion from the protrusion of the partition plate. The elastic linear spring is inserted and locked into a locking groove provided in the part, and both open ends of the elastic linear spring are bent inward and inserted into a hole in a bottle part provided in a cylinder body facing the guide groove in the radial direction. The partition plate is held in the guide groove.

With this configuration, a uniform pressing force of the bullet or wire spring is applied from the connecting portion to the partition plate, and the pressure contact between the biased U rotor and the partition plate becomes stable and good. In addition, both open ends of the elastic linear spring are fixed with washers, and the connecting part is inserted and fixed into the locking groove of the partition plate, so both ends are fixed, and the upper and lower ends of the elastic linear spring are fixed. There is no vibration and there is no contact with the coil end.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

Incidentally, the same members as those of the conventional one described above are indicated by the same reference numerals, and the explanation thereof will be omitted.

Reference numeral 1 denotes a closed container, in which a cylinder body 3 forming a cylindrical compression chamber 2 is welded and held. The upper and lower openings of the cylindrical compression chamber 2 are closed by an upper end plate 4 and a lower end plate 5, respectively.

Reference numeral 6 denotes a rotor inserted into the eccentric portion 8 of the rotation 7, and the rotor 6 rotates eccentrically along the inner surface of the cylindrical compression chamber 2.

Reference numeral 9 denotes a guide groove provided in the cylinder body 3 so as to be located in the radial direction of the cylindrical compression chamber 2. The guide groove 9 is in contact with the outer peripheral surface of the eccentric rotor 6 during normal operation to maintain the cylindrical compression chamber 2 at low pressure. A partition plate 10 is housed that divides the pressure side into the high pressure side and the high pressure side.

One end of the partition plate 10 protrudes from step portions 11 formed on both the upper and lower opening end surfaces of the guide groove 9, and a locking groove 12 is formed in this protrusion.

13 It is an elastic linear spring formed by bending an elastic linear shape into a semicircular shape, and both open ends 17 of this spring are bent inward to face the guide groove in the radial direction. Insert it into the hole of the bottle part 14 fixed with the washer 15 provided in the cylinder body,
The connecting portion 18 is a locking groove 12 provided in a protruding portion of the partition plate 10.
The partition plate 10 is inserted and locked to apply a stable and uniform elastic pressing force to the partition plate 10 at all times.

In this way, the connecting part of the first elastic linear spring 13 is inserted into the locking groove of the partition plate 10, and both open ends are inserted into the holes of the bottle part 14, so both ends are fixed and the vertical vibration of the elastic linear spring 13 is prevented. There is no contact with the coil end.

Effects of the Invention As described above, the present invention uses an elastic linear spring bent in a U-shape, and inserts and locks it into the locking groove of the protrusion of the partition plate. It provides an elastic pressing force. Also, insert both open ends of the elastic linear spring into the holes in the bottle part.
Since the connecting part is inserted into the locking groove of the partition plate, both ends are fixed, eliminating vertical vibration of the elastic linear spring and preventing contact with the coil end.

[Brief explanation of drawings]

Fig. 1 is a plan sectional view of the main parts of a hermetic compressor according to an embodiment of the present invention, Fig. 2 is a sectional view of the main parts of the same compressor, and Figs. A plan view, a front view, and FIG. 4 are cross-sectional views of a conventional hermetic compressor. 1... Airtight container, 2... Cylindrical compression chamber,
3... Cylinder body, 4... Upper end plate, 5...
... lower end plate, 6 ... guide map, 10 ...
...Partition plate, 11...Step, 12...Latching groove, 13...Elastic linear path, 14...Pin, 15... Washer. Name of agent: Patent attorney Toshio Nakao and 1 other person 1st
Figure 2

Claims (1)

[Claims] A cylinder body having a cylindrical compression chamber is sandwiched between the upper end plate and the lower end plate, and the eccentric rotor disposed in the cylindrical compression chamber comes into contact with this rotor to form the cylinder body. A rotary compression chamber is constituted by dividing the compression chamber into a high pressure side and a low pressure side by a partition plate that slides in a guide groove, and steps are formed at both upper and lower opening ends of the guide groove, and steps are formed at the ends of the partition plate. A connecting portion of an elastic linear spring formed by protruding and bending an elastic wire bent in a U-shape into a semicircle is inserted and locked into the locking groove of the projecting portion of the partition plate, and both open ends thereof are inserted and locked. Bend inward and
A partition plate holding device for a rotary compressor, which is inserted into a hole of a pin fixed with a washer in a hole provided in a cylinder body facing the guide groove in the radial direction.