JPS5859387A - Oscillating type compressor - Google Patents

Abstract

PURPOSE:To enable to arrange a compressor and a motor in a single casing, by disposing connecting members for connecting the compressor and the motor to each other around an oscillation plate adapted for driving a piston. CONSTITUTION:A compressor actuating section 2 in an enclosed casing 1 is composed of a cylinder constituting member 6 having three cylinders 5 disposed with uniform angular intervals from each other, a rotary cam 23 connected to a driving shaft 24 of a motor 4 and having an inclined surface 23a for oscillating an oscillation plate 17, and the oscillation plate 17 shaped substantially in a triangular form which is disposed with some inclination for causing reciprocal movement of pistons 21 in the cylinders 5. Further, connecting members 30, 30' for connecting said cylinder constituting 6 and the motor 4 to each other are disposed respectively between each side 34 of the oscillation plate 17 and the casing 1.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an oscillating compressor used in refrigerators, car air conditioners, and the like.

In general, an oscillating compressor is provided with a cylinder forming body in which a plurality of cylinders are provided at equal angular intervals in a casing, and the cylinder forming body is tilted near the cylinder forming body so as to vibrate in the axial direction of the cylinder. A swing plate is provided, and the shaft end of a viston that reciprocates within the cylinder is attached to this swing plate.

The rocking plate is rocked by a rotary cam member having an inclined surface, and this cam portion i is rotated by a drive shaft extending from a motor.

However, in such an oscillating compressor, the compressor body, which consists of a cylinder forming body and an oscillating plate, and the motor are separate units, which not only makes it expensive, but also makes it difficult to install it in a refrigerator or car. , and in limited cases, there is a problem that not only the installation work is time-consuming, but also the maintenance and maintenance of the compressor is time-consuming.

In addition, in this type of compressor, it is necessary to make the stroke of the piston as large as possible, and for this reason, the swing plate is also made as large as possible, so a connecting member between the cylinder forming body and the motor is provided on the outer periphery of the swing plate. There was also the problem that the casing had to be made larger.

In view of these points, it is an object of the present invention to provide a vibratory compressor that is compact, easy to incorporate into various types of equipment, easy to maintain and maintain, and moreover, is robust.

Embodiments of the present invention will be described below with reference to FIGS. 1 to 3.

In FIG. 1, the IIA-type compressor of the present invention has a cylindrical sealed casing 1, and the compressor operating section 2 is housed on the left side of the casing 1, and the compressor operating section 2 is housed on the right side of the casing 1. A motor 4 built in a motor cover 3 is disposed.

As shown in FIG. 2, the compressor operating section 2 has a cylinder forming body 6 in which three cylinders s'+5; Cylinder head 1 is lI! A pulp plate 8 is attached to the head l and the left end IIm of the formed body.

Suction chambers 9 and 1ttfi chambers 10 are provided in the head 1, and the pulp plate 8 is provided with a suction hole, a discharge hole 12, and an inlet valve. 13 and discharge valve 14 are opened.

A stay 15 is screwed into the center of the cylinder forming body 6, and a rocking plate 11 is attached to the tip of the stay 15 via a ball 16 so as to be able to swing freely diagonally.

A piston shaft 19 is attached to the shaft 9 corresponding to the cylinder 5 of the swing plate 11 via a rotary bearing 18, and a piston 21 biased by an oil spring 20 is attached to this piston shaft 191C.

Here, since it is necessary for the swing plate 17 to make the stroke of the piston 21 as thick as possible, the distance between the ball 16 and the rotary bearing 1B needs to be as large as possible. is a substantially equilateral triangle, and a rotary bearing 18 directly connected to the cylinder shaft 19 is provided near the apex 33 of the substantially equilateral triangle.

Further, a thrust base 7 is provided near the center of the swing plate 17.
A rotating cam 23 having an inclined surface 23a via a ring 22
This rotating cam 23 is directly fixed to the drive shaft 24 of the motor 4.

A connecting body 30.30'' (a number is installed between each side 34 of the equilateral triangle of the rocking plate 17 and the closed casing 1, and connects and fixes the cylinder forming body 6 and the motor 4). 1 is suppressed from increasing.

The connecting body 30.30- is integrally formed with the motor cover 3 on one side and screwed onto the cylinder forming body 6 on the other side.
The connecting body 3G' is made up of two parallel bars 31 and 32, and the connecting body 3G' is made up of two parallel bars 31 and 32, and a lip 36 provided at the tip of the roller shaft 35 that regulates the rotation of the moving plate 11. It also functions as a guide.

Incidentally, a recess is provided at the center of the left end of the cylinder head 1 and at the center of the right end of the motor cover 3, and supporting coil springs 25 and 26 are inserted into the recesses.

From the outside of the casing 1, as shown in FIG. are arranged in an arc shape toward the casing 1.The suction @27 is opened under the suction supply pipe 29, and part of it is filled with lubricating oil O injected into the lower part of the casing. 5- Immersed within.

Lubricating oil OK for 21: The oil-soaked parts are
The injection hole 28 is opened, and the refrigerant injection hole 28 is opened.
The lubricating oil is sucked into the suction pipe 21 by the action of the comb 1, mixes with the refrigerant, and is sprinkled from the upper part of the casing, especially on the rocking plate 17.Therefore, the lil1ill of the rotating bearing 18 portion becomes good, and the lubricating oil is mixed with the refrigerant. The lubrication effect on sliding parts also becomes a part.

The refrigerant in the sealed casing 1 is sucked into the head of the cylinder m from the upper lower part a (Fig. 1), and is swung in synchronization with the reciprocating movement of the piston 21 connected to the rocking plate, which is rocked by the action of the rotating cam 23. After being sucked into the cylinder 5 and compressed, it is discharged into the discharge chamber 10 and flows out from the discharge chamber 1!38 connected to the discharge chamber 10.

As explained above, the present invention includes a compressor operating part and a motor consisting of a cylinder forming body, a rocking plate, etc. in one dense casing, and the rocking plate 4 is an equilateral triangle. A connecting body is installed between each side and the casing↓
Due to its large diameter, the entire compressor can be formed compactly, and its good balance allows for smooth operation.The connection between the cylinder forming body and the motor is not only strong, but also easy to assemble, maintain, and maintain. The effect of being 1! do.

[Brief explanation of the drawing]

1 is a longitudinal cross-sectional view of the oscillating compressor of the present invention, FIG. 2 is a cross-sectional view taken along the line ntt in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line ■-■ in FIG. 1...Dense m casing, 2...Compressor operating part, 3.
... Motor cover, 4... Motor, 5... Cylinder, 8... Cylinder forming body, 7... Cylinder head, 15... Stay, 11... Rocking plate, 23
...0 rotation cam, 24...drive shaft, 30.30-...
・Consolidated Entity・ Patent Applicant: Fuji Technology Institute Co., Ltd. Representative Patent Attorney Jundo Kogi Patent Attorney Susumu Murai 7-

Claims (1)

[Claims] A cylinder forming body disposed at one end of the casing and having three cylinders arranged at equal angular intervals, and a piston axis provided diagonally to allow the piston in the front cylinder to reciprocate. a substantially equilateral triangular rocking plate near the apex, a rotary cam member directly connected to the other end in the casing and having an inclined surface for rocking the rocking plate, a cylinder forming body, and a motor. A rocking compressor characterized in that a connecting body connecting the rocking plate is provided between each side of the triangle of the rocking plate and the casing.