JPH0686876B2 - Horizontal compressor - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal compressor used by being incorporated in an air conditioner, a refrigerator or the like.

2. Related Art One example of a conventional horizontal compressor is shown in FIG.

In the figure, reference numeral 1 is a closed container that also serves as an oil reservoir for storing the lubricating oil 2. In this closed container 1, an electric motor element 3 and a compressor element 4 equipped with an oil supply device are housed.

The electric motor element 3 includes a stator 5, a rotor 6, a coil 7, and a shaft (rotating shaft) 8.
Has a crank 9 and an oil supply port 10 formed by hollowing the end thereof.

The compressor element 4 is rotatably mounted on a cylinder 11 and a crank 9 of the shaft 8. The piston 9 is eccentrically rotated by the crank 9 along the inside of the cylinder 11, and a groove provided in the cylinder (not shown). The spring force of the coil spring 13 pressing from the back of the piston 12
Bearing end plates 15 and 1 disposed on both sides of the vane 14 and the cylinder 11 that reciprocate while contacting
It consists of 6.

Next, the refueling device is equipped with a cylinder 11 and
Pump chamber 19 formed by 17, 18 and side plate (motor side) 17
Through the cover 22 through the oil suction hole 20 bored in the base plate, the oil discharge hole 21 bored in the side plate (opposite the motor side) 18, the oil discharge hole 21 and the oil supply port 10 provided at the end of the shaft 8. It is composed of an oil supply pipe 23 that is attached by the above.

Regarding the horizontal compressor configured as described above, the fourth
The operation will be described with reference to FIGS. FIG. 5 is a detailed view of FIG.

When the electric motor element 3 is driven, the shaft 8 fitted in the rotor 6 rotates, which causes the piston 12 which eccentrically moves along the inside of the cylinder 11 and the vane 14 which abuts against this to change the volume in the cylinder 11. The refrigerant is raised and compressed from the refrigerant suction port (not shown) to be discharged from the refrigerant discharge port (not shown).

On the other hand, since the vane 14 moves in the vertical direction, the lubricating oil 2 in the pump chamber 19 passes through the oil supply pipe 23, passes through the oil supply port 10 provided at the end of the shaft 8 and lubricates each part of the compressor element 4. It has become.

Problems to be Solved by the Invention However, in the above configuration, the cover 22 and the oil supply pipe are
If the gap between the lubricating oil 2 and the pump 23 is large, the lubricating oil 2 pumped from the pump chamber 19 through the oil supply pipe 23 to the oil supply port 10 will not be covered by the cover 22.
Leaks from the gap between the oil supply pipe 23 and the oil supply pipe 23, the amount of oil supplied to each sliding portion of the compressor element 4 decreases, and the lubrication performance deteriorates. On the other hand, if the gap is narrowed, the vibration of the oil supply pipe 23 causes
There was a problem that the oil supply pipe 23 and the cover 22 hit each other to generate a sound.

In view of the above problems, the present invention provides a horizontal compressor that prevents the oil supply pipe 23 and the cover 22 from hitting each other and has a high lubricating performance.

Means for Solving the Problems In order to solve the above problems, the horizontal compressor of the present invention has a push interposed between the cover and the oil supply pipe.

Effect The present invention has the above-described configuration to reduce the gap between the oil supply pipe and the cover to improve the lubrication performance, and to reduce the noise by eliminating the contact between the oil supply pipe and the cover.

Embodiment One embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a vertical sectional view of a horizontal compressor according to an embodiment of the present invention. The same parts as those in the conventional example are designated by the same reference numerals and the description thereof will be omitted.

Here, the refueling device includes a pump chamber 19 formed by a cylinder 11 and side plates 17 and 18 and a side plate (motor side) 1 on the back of the vane 14.
The oil suction hole 20 formed in 7 and the oil discharge hole 21 formed in the side plate (opposite the motor side) 18, the oil discharge hole 21 and the oil supply port 10 provided at the end of the shaft 8 form the bush 24. It is composed of an oil supply pipe 23 which is attached by penetrating a cover 22 formed by the above.

With respect to the horizontal compressor configured as described above, the first
The operation will be described with reference to FIGS. Figure 2 shows
It is a detailed view of FIG.

When the electric motor element 3 is driven, the shaft 8 fitted in the rotor 6 rotates, which causes the piston 12 which eccentrically moves along the inside of the cylinder 11 and the vane 14 which abuts against this to change the volume in the cylinder 11. The refrigerant is raised and compressed from the refrigerant suction port (not shown) to be discharged from the refrigerant discharge port (not shown).

On the other hand, since the vanes 14 move in the vertical direction, the lubricating oil 2 in the pump chamber 19 is covered with the push 24 to cover the lubricating oil 2.
Through the oil supply pipe 23 that penetrates through the oil supply port 10 at the end of the shaft 8 to lubricate the sliding parts of the compressor element 4.

The bush 24 attached to the cover 22 is made of resin,
Further, since the oil supply pipe 23 inserted into the bush 24 is press-fitted or attached with a minute gap, the amount of lubricating oil leaking from the discharge port 10 to the outside of the cover 22 is reduced, and the lubricating performance is improved. . Furthermore, the cover 22 and the oil supply pipe
Since there is no hit with 23, it is possible to prevent the generation of sound by both. FIG. 3 shows an embodiment of the bush 24.

As described above, according to the present invention, by interposing the bush between the cover and the oil supply pipe, it is possible to improve the lubrication performance and prevent the cover and the oil supply pipe from hitting each other, which causes noise.

[Brief description of drawings]

1 is a vertical sectional view of a horizontal compressor according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view of an essential part of FIG. 1, and FIG. 3 is a sectional view of a bush according to an embodiment of the present invention. FIG. 4 is a vertical sectional view of a conventional horizontal compressor, and FIG. 5 is an enlarged sectional view of an essential part of FIG. 1 ... closed container, 2 ... lubricating oil, 3 ... motor element, 4
...... Compressor element, 5 ...... Stator, 6 ...... Rotor, 7 ...
… Coil, 8 …… Shaft, 9 …… Crank, 10 …… Oiler port, 11 …… Cylinder, 12 …… Piston, 13 …… Coil spring, 14 …… Vane, 15,16 …… Bearing end plate, 17, 18 ...
… Side plate, 19 …… Pump chamber, 20 …… Oil suction hole, 21 …… Oil discharge hole, 22 …… Cover, 23 …… Oil supply pipe, 24 …… Bushing.

Claims (2)

[Claims] 1. A horizontal compressor is constructed by disposing a motor element and a compressor element laterally in a hermetically sealed container via a shaft, and forming a lubricating oil sump at the bottom to form a horizontal compressor. An oil supply mechanism that operates in tandem with the above is installed in the lower part of the closed casing, and the oil supply pipe extending from the oil supply mechanism penetrates the cover attached to the end plate of the bearing on the side of the anti-motor element and opens at the oil supply port of the shaft. A horizontal compressor in which a bush is attached to the cover. 2. The horizontal compressor according to claim 1, wherein the material of the bush attached to the cover is resin.