JPH01219378A - Scroll compressor - Google Patents

Abstract

PURPOSE:To build a compressor in a wall and a partition or the like easily in making its axial length shorter by installing a stator and a rotor, while installing a rocking ring on an inner circumference of this rotor, and attaching a rocking scroll to the radial inside of this rocking ring. CONSTITUTION:A stator 3 consisting of an armature and a rotor 4, whose inner circumference is decentered to the radial inside, are installed in a scroll compressor 1. A rocking ring 7, whose rotation is restained, is installed on the inner circumference of the rotor 4 via plural numbers of bearings 6. A rocking scroll 9 is attached to the radial inside of the rocking ring 7. Thus, radial length of the compressor becomes shortened so that it can be easily built in a wall and a partition or the like.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a scroll compressor.

(Prior art) This type of conventional technology is based on a motor 301 as shown in FIG.
There is a structure in which a scroll compressor 303 is attached to the output shaft 302 of the compressor.

(Problems to be Solved by the Invention) Conventional scroll compressors are long in the axial direction, making it extremely difficult to meet the demand for incorporating them into walls, interstices, etc.

(Means and effects for solving the problem) In a scroll compressor consisting of a fixed scroll and an oscillating scroll, a stator consisting of an armature and a rotor whose inner periphery is eccentric are provided inside the stator in the radial direction. An oscillating ring whose rotation is restrained is provided on the inner periphery, and an oscillating scroll is attached to the radially inner side of the oscillating ring.

(Embodiment) A first embodiment of the scroll compressor of the present invention will be described with reference to FIGS. 1 to 4.

1 is a longitudinal sectional view of the first embodiment, FIG. 2 is a sectional view taken along line I-1 in FIG. 1, and FIG. 3 is a sectional view taken along line 1--2 in FIG.

1 to 4, a scroll compressor 1 consists of an armature having an air passage 3a in a thin cylindrical case 2, which has a suction port 2a in the cylindrical portion and a discharge port 2b in the side wall. Stator 3. A rotor 4 having an eccentric inner circumference 4a is rotatably supported and attached to a bearing 5 at an inner circumference 4c having the same central axis as the outer circumference 4b. Furthermore, a swing ring 7 is disposed inside via a plurality of bearings 6, and a hemispherical recess 7a into which a rotation restraining ball 8 is inserted is provided on the side surface of the sliding ring 7. The rotation restraint ball 8 protrudes into a recess 11a formed in the side plate 11, and the recess lla is large enough to allow the rotation restraint ball 8, which makes the same rocking motion as the sliding ring 7, to swing. It is set.

Inside the swing ring 7, a swing scroll 9 having an air passage hole 9a formed in the center is attached by a pin 7b, and fixed scrolls 10a and 10b are disposed opposite to each other on both sides of the swing scroll 9.

The stator 3 is fastened to the side plate 11 by bolts llb, and the side plate 11 is fastened to the lid member 14, which is fastened to the case 2 by bolts 13, by bolts 14a.

In such a configuration, when the stator 3 is energized, the rotor 4
rotates, and the inner periphery 4a of the rotor 4 is eccentric, and the sliding ring 7 cannot rotate due to the rotation restraining balls 8, so it performs an oscillating movement.When the oscillating ring 7 performs a sliding movement, the oscillating scroll 9 slides to form an oscillating scroll compressor with the fixed scrolls 10a and 10b, and the suction port 2a and the intake passage 3
a. Air is sucked in from the side of rotor 4.

The air compressed by the swinging scroll 9 and the fixed scroll 10b passes through the air passage hole 9a to the discharge port 2b, and the air compressed by the swing scroll 9 and the fixed scroll 10a directly reaches the discharge port 2b and is discharged to the outside. Ru.

Next, a second embodiment of the present invention will be described with reference to FIGS. 5 and 6. FIG. 5 is a longitudinal sectional view.

FIG. 6 is a 1-1 sectional view of FIG. 5. Figure 5.

In FIG. 6, the same reference numerals as those used in FIGS. 1 to 4 indicate the same members, and their explanations will be omitted. Swing ring 7
The convex portion 107a corresponds to the groove 101a of the rotation restraint ring 101.
is slidably inserted into the The other groove 101b of the rotation restraint ring 101 has a convex portion 11 of the lid member 14.
4a is slidably inserted to form a so-called Oldham joint. Therefore, the swing ring 7 is restrained from rotating and therefore slides.

A third embodiment of the present invention will be described with reference to FIGS. 7 and 8. Figure 7 is a longitudinal section, and Figure 8 is 1-1 in Figure 7.
FIG. In Figures 7 and 8, Figures 1 to 4
The same reference numerals as those used in the figures indicate the same members, and the explanation will be omitted.

An external gear 207a for restraining rotation is attached to the swing ring 7, and an internal gear 203a for restraining rotation is attached to the stator 3. The number of teeth of the external gear 207a and the internal gear 203a are the same, and the internal gear 203a
The pitch circle radius is larger than the pitch circle radius of the external gear 203a to the extent that the swing ring 7 can swing.

Therefore, the swing ring 7 swings while being restrained from rotating.

(Effects of the Invention) As explained above, the compressor according to the present invention has a short length in the axial direction, so that it can be easily incorporated into walls, partitions, etc.

[Brief explanation of the drawing]

1 to 4 are diagrams showing a first embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view, FIG. 2 is a 1-1 sectional view of FIG.
The figure is a sectional view taken along ■-■ in Fig. 1. 4 is a sectional view taken along the line ■-■ of FIG. 1, FIGS. 5 and 6 are views showing the second embodiment of the present invention, FIG. 1-1 sectional view, FIGS. 7 and 8 are diagrams showing a third embodiment of the present invention. 7 is a longitudinal sectional view, and FIG. 8 is a 1-1 sectional view of FIG. 7. FIG. 9 is a diagram showing the prior art. 1... Compressor 3... Stator 4... Rotor 7... Rocking ring 9... Rocking scroll 10a, 10b... Fixed scroll Fig. 1 Fig. 2 Fig. 3-F, 2Q - Figure 5 Figure 6 Figure 7 Figure 8 Figure 9

Claims (1)

[Claims] In a scroll compressor consisting of a fixed scroll and an oscillating scroll, a stator consisting of an armature and a rotor whose inner periphery is eccentric are provided inside the stator in the radial direction, and an oscillating ring whose rotation is restrained on the inner periphery of the rotor. 1. A scroll compressor comprising: an oscillating scroll mounted on the radially inner side of the oscillating ring.