JPH0233485A - Horizontal rotary compressor - Google Patents

Abstract

PURPOSE:To simplify the fitting process of a partition plate by forming the partition plate and a discharge muffler in an integrated structure. CONSTITUTION:A partition plate 5 and a discharge muffler 15 are formed in an integrated structure, the discharge muffler 15 is fitted to a right side bearing 12. The partition plate 5 can be arranged on the motor side of a cylinder 8, the fitting process of the partition plate 5 can be simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a horizontal rotary compressor used for refrigeration and air conditioning.

[Conventional technology]

A conventional horizontal rotary compressor is, for example, the Utility Model Publication No. 63-17888.
The structure is as shown in the publication. Figure 5 is a longitudinal sectional view of the compressor. In Figure 1, (1) is a closed container, (2) is an electric element supported and fixed in the closed container (1), and what is the one-turn compression element (3)? , are connected by a horizontal rotation axis (4). (5) is a partition plate, and this partition plate (5)
Inside the airtight container (1) are a motor room (6) that houses the electric element (2) and a machine room (7) that houses the rotary compression element (3).
It is divided into The rotary compression element (3) is a cylinder (8
) and the eccentric part (9) of the rotating shaft (4)
) and a vane (11) that rotates inside the cylinder (8), which divides the cylinder (8) into a low-pressure chamber and a high-pressure chamber, and a right bearing ( ) installed on both sides of the cylinder (8). 12), a left bearing (13), a discharge valve (14) attached to the left bearing (13), and a discharge muffler (15). The partition plate (5) is fixed to the cylinder (8) together with the right bearing (12), and the lower part communicates the motor room (6) and the machine room (7) in the oil in the sealed container (1). A passageway (16) is provided in the -E section, and a gas passageway (18) which communicates with the space is provided.

Next, the operation will be explained. The refrigerant gas that has flowed into the cylinder (8) is transferred to the cylinder (8), the rolling piston (
10), 2 rolling pistons (10) in the compression chamber formed by the right and left bearings (12), (13)
is compressed by the electric element (2) being eccentrically rotated by the rotation shaft (4). The compressed refrigerant gas is discharged through the discharge valve (
14) into the discharge muffler (15) through 9 through holes (
17) and is discharged into the motor chamber (6). The gas is then guided to the first machine room (7) through the gas passage (18) provided in the partition plate (5), and then from the discharge pipe (19) to the airtight container (+).
Exhaled outside. The refrigerant flowing from the motor room (6) to the machine room (7) is slightly depressurized by the gas passage (18) so that the pressure in the motor room (6) is higher than that in the machine room (7). The oil in (6) moves to the machine room (7) via a passage (16) provided at the bottom of the partition plate (5),
The oil level in this area is raised.

[Problem to be solved by the invention]

Since the conventional horizontal rotary compressor is configured as described above, the partition plate (5) must be fastened together with the bearing, a discharge port is provided in the right bearing (I2), and a discharge valve (14) is provided with a discharge port. When the muffler (15) was provided, there was a problem in that the partition plate (5) could not be attached because the discharge muffler (15) was fastened together with the bearing. In addition, the gas passage (18)
If the hole is lit, the pressure drop is insufficient and the motor chamber (
There were problems such as a pressure difference between the refrigerant (6) and the machine room (7), which caused a lot of noise when the refrigerant was passing through.

This invention was made in order to solve the problem described in L. Even if the mechanism is to discharge compressed refrigerant gas from the motor side bearing, the partition plate can be disposed on the motor side of the cylinder. .

The purpose is to simplify the installation process of the partition plate, create a pressure difference between the motor room and the machine room, and reduce noise.

[Means to solve the problem]

A horizontal rotary compressor according to the present invention includes a closed container, a motor chamber provided in the container and housing an electric element, and a compressor having a bearing on the electric element side provided in the container, and a discharge muffler attached to the bearing. A machine room in which the elements are housed, is provided integrally with the discharge muffler, and partitions the motor room and the machine room to maintain the pressure in the motor room higher than the pressure in the machine room and move oil to the machine room to move the oil to the machine room. It is equipped with a partition plate to keep the oil level in the chamber high.

[Effect]

In the horizontal rotary compressor of this invention, by integrating the partition plate with the discharge muffler, a part of the discharge muffler can function as a partition plate by simply providing a discharge port in the bearing on the motor side and attaching the discharge muffler. The motor room and the machine room can be spatially separated.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, (1) is a sealed container with oil stored at the bottom;
2) is an electric element, (3) is a rotary compression element and the rotating shaft (4)
are connected by. (5) is a partition plate integrated with the discharge muffler, and inside the closed container (+) there is a motor room (6) that stores the electric element (2) and a machine room (7) that stores the rotary compression element (3). The one-turn compression element (3) is divided into a rolling piston (10) which rotates inside the cylinder (8) by an eccentric portion (9) of the cylinder (8) and the rotating shaft (4).
), a vane (11) in contact with the vane (11) that divides the inside of the cylinder (8) into a low pressure chamber and a high pressure chamber, a right bearing (12) provided on both sides of the cylinder (8), a left bearing (13), and a right side bearing (13). It consists of a discharge valve (+4) attached to a bearing (12) and a discharge muffler (J5) integrally constructed with a partition plate. At the bottom of the partition plate (5), there is a motor chamber (
6) and the machine room (7).A gas passage (18) is provided in the space where the passage (16) communicates with the machine room (7). FIG. 2(a) is a plan view showing the main parts of one embodiment of the present invention, FIG. 2(b) is a side view of the same, and FIG. 3(a) shows the main parts of another embodiment of the invention. The front view shown in FIG. 3(b) is a side view of the same. Figures 2 (a) and (b) show the discharge muffler (+
5) and the partition plate (5) are integrally molded, and the holes for the gas passages (18) are formed by burring. Third
Figures (a) and (b) show the partition plate (5) with holes for the gas passage (18) formed by burring on the discharge muffler (15).
), and is attached before being assembled into the bearing, so that it has the same function as the above-mentioned integrally molded product.

In the horizontal rotary compressor configured in this way, the refrigerant gas that has flowed into the cylinder (8) is transferred to the cylinder (8), the rolling piston (10), and the right and left bearings (12) (+3).
In the compression chamber formed by the rolling piston (
10) is compressed by eccentric rotation by the rotating shaft (4). The compressed refrigerant gas is guided from the discharge valve (14) into the discharge muffler (15), and directly flows into the motor chamber (6).
) is discharged. Then, it passes through the gas passage (+8) provided in the partition plate (5) and is guided to the first machine room (7), and the discharge pipe (
19) is discharged outside the closed container (+). Motor room (
6) to the machine room (7), the refrigerant flows through the gas passage (18
) The pressure is slightly reduced by the burring part of the motor chamber (6).
The pressure in the motor room (6) becomes higher than that in the machine room (7).
The oil moves to the machine room (7) via a passage (16) provided at the bottom of the partition plate (5), raising the oil level in this area.

In the above embodiment, the discharge port from the refrigerant gas cylinder (8) was provided only in the right bearing (12), but as shown in Fig. 4, a discharge port was similarly provided in the left bearing (13). , a discharge valve (+4), and a discharge muffler (+5) may be provided,
- The same effect as in Example F is achieved.

〔Effect of the invention〕

According to the present invention, a closed container, a motor chamber provided in the container and housing an electric element, and a compression element provided in the container and having a bearing on the electric element side and a discharge muffler attached to the bearing are housed. A machine room is provided integrally with the discharge muffler, and partitions the motor room and the machine room, keeps the pressure in the motor room higher than the pressure in the machine room, moves oil to the machine room, and controls the oil level in the machine room. With the structure equipped with a partition plate to keep the temperature high, it is now possible to discharge refrigerant gas from the motor side bearing, which was previously impossible, even with a partition plate, and it is also possible to obtain a horizontal rotary compressor that can blow from both sides. There is. Furthermore, since the gas passage hole is formed by burring, an appropriate pressure difference is created by pressure loss, and the sound produced when the refrigerant passes through the gas passage is reduced.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view of a horizontal rotary compressor according to an embodiment of the present invention, FIGS. 2(a) and (b) are front and side views of a partition plate integrally formed with a discharge muffler, and FIG. 3 (a), (
b) is a front view and a side view showing another embodiment of a partition plate integrally molded with a discharge muffler, FIG. 4 is a longitudinal sectional view of a horizontal rotary compressor showing another embodiment of the present invention, and FIG. 1 is a longitudinal sectional view showing a conventional horizontal rotary compressor. In the figure, (1) is a closed container, (2) electric element, (3
) is the compression element, (5) is the partition plate, (6) is the motor room, (
7) is the machine room, (12) is the right bearing, and (15) is the discharge muffler. In each figure, the same reference numerals indicate the same or corresponding parts. Figure 1

Claims (1)

[Claims] a closed container, a motor room provided in the container and housing an electric element; a machine room provided in the container and housing a compression element having a bearing on the electric element side and a discharge muffler attached to the bearing; A system is provided integrally with the discharge muffler and partitions the motor room and the machine room to keep the pressure in the motor room higher than the pressure in the machine room and move oil to the machine room to keep the oil level in the machine room high. Horizontal rotary compressor with partition plate.