JP2003161278A - Hermetic rotary compressor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To attain reduction in cost and improvement in reliability in a hermetic rotary compressor while ensuring compressor performance. <P>SOLUTION: The thickness of each cylinder 8 and 8A for constituting compression elements is set larger than that of a partitioning plate 10. One intake passage 12 extending from a side opening to the center is formed on the partitioning plate 10, and communicating holes 13 branched from the intake passage 12 to both sides and extended to the intake chamber of each compression element is formed, and one intake conduit extending through a hermetic casing 1 is connected to the intake passage 12. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hermetic rotary compressor, and is particularly suitable for a hermetic rotary compressor used in a refrigerator such as an air conditioner or a cold air application product.

[0002]

2. Description of the Related Art As a conventional hermetic rotary compressor,
As shown in Japanese Utility Model Laid-Open No. 63-134188 (Prior Art 1), the electric motor unit and the compression mechanism unit connected via a crankshaft are housed in a hermetically sealed container, and two compression units are provided with a partition plate interposed. A cylinder that forms two compression elements in a hermetic rotary compressor in which a compression mechanism is formed by elements, and refrigerant gas is sucked into the compression element through the suction pipe line, compressed, and discharged into the space inside the hermetic container. There is one in which a suction passage is formed, and an independent suction pipe is connected to each of the two suction passages.

Further, as a conventional hermetic rotary compressor, as shown in JP-A-63-162991 (Prior Art 2), an electric motor unit and a compression mechanism unit connected via a crankshaft are used. It was housed in a closed container, and a compression mechanism part was formed by two compression elements with a partition plate interposed, and the refrigerant gas was sucked into the compression element through the suction pipe line, compressed and discharged into the space inside the closed container. In some hermetic rotary compressors, the suction line is directly connected to the compression element and is connected to the suction chamber.

[0004]

In the hermetic rotary compressor of Prior Art 1, since the suction passages are formed in the two cylinders and independent suction passages are connected to the suction passages, respectively. However, there is a problem in that a large increase in cost is incurred.

Further, in the prior art 1, since the two suction pipelines are juxtaposed in the axial direction, concentrated stress of internal pressure is applied to the line connecting the two suction pipelines, and the hermetic container is easily damaged. There was a problem. In particular, when HFC410A refrigerant is used instead of HCHC22 refrigerant, the compressor operating pressure becomes about 1.5 times, and the pressure inside the closed container becomes 1.5 times. For this reason, in the conventional technique 1, it is necessary to increase the pressure resistance of the closed container, and there arises a problem that special measures such as an increase in plate thickness and an increase in rigidity are required.

Furthermore, in the prior art 1, when the suction pipe line is connected to the suction passage of the cylinder, a relative sliding force acts between the bearing fixed to the closed container and the cylinder. However, there is a problem that a special assembling process is required so that no transition occurs between them.

On the other hand, in the hermetic rotary compressor of Prior Art 2, since the thickness of the cylinder constituting the compression element is less than half the thickness of the partition plate, which is extremely thin, when the suction passage is formed in the partition plate, the suction passage is formed. However, there is a problem in that the flow passage cross-sectional area becomes smaller, which increases the suction resistance of the refrigerant gas and reduces the compression performance.

Further, the prior art 2 does not disclose a specific structure of the suction passage for improving the performance.

A first object of the present invention is to provide a hermetic rotary compressor capable of reducing the cost and improving the reliability while ensuring the performance of the compressor.

A second object of the present invention is to provide a hermetic rotary compressor capable of improving the compressor performance while improving the reliability.

A third object of the present invention is to provide a hermetic rotary compressor capable of improving productivity while ensuring compressor performance.

The present invention is not limited to such an object, and objects and advantages other than the above will be apparent from the following description.

[0013]

A hermetic rotary compressor according to the present invention for achieving the first object is to store an electric motor unit and a compression mechanism unit connected via a crankshaft in a hermetic container, In the one in which the compression mechanism section is formed by two compression elements with a partition plate interposed, a refrigerant gas is sucked into each of the compression elements through a suction pipe, and compressed to be discharged into the space in the closed container. The thickness of the partition plate is made thicker than the thickness of the cylinder constituting the compression element, and one suction passage extending from the side opening to the center is formed in the partition plate, and the suction passage is shunted to both sides. A communication hole leading to the suction chamber of each compression element is formed, and one suction pipe line penetrating the closed container is connected to the suction passage.

In the hermetic rotary compressor of the present invention for achieving the second object, an electric motor unit and a compression mechanism unit connected via a crankshaft are housed in a hermetic container, and a partition plate is interposed. The compression mechanism section is formed by two compression elements, and the refrigerant gas is sucked into each compression element through the suction conduit, compressed, and discharged into the space in the closed container. A suction passage extending to the center from the opening having one opening is formed in the partition plate, and a communication hole communicating with each suction passage and shunting to both sides is formed so as to communicate with the suction chamber of each compression element, and the closed container is formed. The suction pipe line passing through is independently connected to each of the suction passages.

In the hermetic rotary compressor of the present invention for achieving the third object, the electric motor section and the compression mechanism section connected via a crankshaft are housed in a hermetic container, and a partition plate is interposed between the two units. In one in which the compression mechanism section is formed by two compression elements, and the refrigerant gas is sucked into each compression element through the suction conduit, compressed and discharged into the space inside the closed container, the partition plate is closed. The suction plate is fixed to the container by welding or the like, one suction passage extending from the side opening to the center is formed in the partition plate, and one suction pipe line is connected to the suction passage.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A plurality of embodiments of the hermetic rotary compressor of the present invention will be described below with reference to the drawings. The same reference numerals in the drawings of each embodiment indicate the same or equivalent components.

First, a hermetic rotary compressor according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 6. 1 is a longitudinal sectional view showing a hermetic rotary compressor of a first embodiment of the present invention, FIG. 2 is a side view of FIG. 1, FIG. 3 is a sectional view taken along line AA of FIG.
4 is a plan view of a partition plate used in the hermetic rotary compressor of FIG. 1, FIG. 5 is a sectional view taken along line BB of FIG. 4, and FIG. 6 is a comparison of the volumetric efficiency of the hermetic rotary compressor of FIG. 1 with a comparative example. FIG.

The hermetic rotary compressor 20 comprises a compressor body 30 and a gas-liquid separator 2. The hermetic rotary compressor 20 constitutes a part of the refrigeration cycle of a refrigerator such as an air conditioner or a cold air application product. And as a refrigerant, HF that is more environmentally friendly than HCHC refrigerants
A C-based refrigerant (for example, HFC410A refrigerant) is used.

The compressor body 30 is constructed by accommodating the electric motor section 21 and the compression mechanism section 22 in the closed container 1. The electric motor section 21 is configured to include the stator 3 and the rotor 4. The stator 3 is fixed to the container tubular member 1b by shrink fitting or the like, and the rotor 4 is fixed to the crankshaft 7 by press fitting or the like. Balance weights 27 are attached to the upper and lower ends of the rotor 4.

The closed container 1 comprises a container lower member 1a, a container cylinder member 1b and a container upper member 1c. The container upper member 1c and the container lower member 1a are fitted to the container tubular member 1b, and the fitting portions are welded to seal the inside. The container cylinder member 1b is formed of an iron plate in a cylindrical shape having upper and lower openings.

The compression mechanism 22 includes a main bearing 7, a crankshaft 5, a sub bearing 11, two cylinders 8 and 8A, two rollers 9 and 9a, two vanes 17,
And one partition plate 10 as a main component. The compression mechanism 22 includes cylinders 8 and 8A, rollers 9 and 9a, and vanes 17 arranged on both sides of the partition plate 10, and the main bearing 7 and the sub-bearing 1 are provided outside them.
1 has two compression elements configured by being arranged. In this way, the partition plate 10 is shared by being sandwiched between the two compression elements.

The compression chamber of one compression element is a partition plate 10,
It is composed of a cylinder 8, a main bearing 7, and a roller 9, and the compression chamber of the other compression element is composed of a partition plate 10, a cylinder 8A, a sub bearing 11, and a roller 9A.

The main bearing 7 is the container tubular member 1b.
It is fixed to the main bearing 7 by welding or the like, and the crankshaft 7 is rotatably fitted in the main bearing 7. Crankshaft 7
Is formed with two eccentric parts that are offset by 180 degrees,
Rollers 9 and 9A are rotatably fitted to the two eccentric portions. The cylinder 8 and the partition plate 10 are fixed to the main bearing 7 with bolts 6, and the sub bearing 1
Cylinder 8A and partition plate 10 are bolts 6A for 1
It is fixed by. Therefore, the two compression elements are fixed to the closed container 1 by the main bearing 7.

The vane 1 is placed in the vane groove of the cylinders 8 and 8A.
7 is slidably fitted (see FIG. 3). Vane 1
7 is pressed by a spring 18 to divide each compression chamber into a low pressure chamber 25 and a high pressure chamber 26. The pressing force of the spring 18 is set to a force that balances the inertial force caused by the reciprocating motion of the rollers 9 and 9A. A cylinder suction port 14 is provided in each low pressure chamber 25.

The partition plate 10 has one suction passage 12 extending from the side opening to the center. Further, the partition plate 10 has a communication hole 1 that branches from the suction passage 12 to both sides and reaches the cylinder suction port 14 of the suction chamber 25 of each compression element.
3 is formed. Since this communication hole 13 is formed perpendicularly to the partition plate 10, it can be formed extremely easily. The suction passage 12 and the communication hole 13 form a refrigerant flow path in the partition plate 10, and the flow paths are vertically symmetrical.

In order to increase the flow passage cross-sectional area of the suction passage 12, the partition plate 10 is formed thicker than the cylinders 8 and 8A.

Particularly, in order to make the flow passage cross-sectional area of the suction passage larger than that of the two cylinders provided with the suction passages as in the prior art 1, the partition plate 10 is used in this embodiment.
Is formed to be 1.25 times or more the thickness of the cylinders 8 and 8A.

That is, the thickness of the cylinder of Prior Art 1 is t,
The minimum dimension from the outer circumference of the suction pipeline to the outer surface of the cylinder is t ₁ , the thickness of the suction pipeline is t ₂ , the thickness of the partition plate 10 of this embodiment is T, and the minimum dimension from the outer circumference of the suction pipeline to the outer surface of the cylinder. Where t _{1 is} the thickness of the suction conduit and t ₂ is the thickness of the suction conduit, the following formula (1) must be satisfied in order to make the flow passage cross-sectional area of the suction passage 12 larger than that of the prior art 1. . Here, it is assumed that t ₁ and t _{2 are} approximately 0.1t.

[0029] 2 × ([pi (t over ^{4 × 0.1t) 2/4)} <π (T over ^{4 × 0.1t) 2/4 (} 1) and rearranging the equation (1), and 1.25 T <T Become. In the present embodiment, 1.275t = T is set.

As described above, when the thickness of the partition plate 10 is increased, the whirling of the compression mechanism portion 22 becomes large. Therefore, the balance weight 27 having a size corresponding to this is attached to the upper and lower end portions of the rotor 4. There is.

The gas-liquid separator 2 is fixed to the side surface of the closed container 1 with a band or the like. The gas-liquid separator 2 has a gas-liquid separator suction port 15 on the upper side. The refrigerant pipe 2 a extending from the lower side of the gas-liquid separator 4 includes the joint pipe 23 and the seal member 2.
4 is connected to the suction passage 12 of the partition plate 10. The joint pipe 23 is formed by welding the outer joint pipe and the inner joint pipe in an airtight manner. The outer connecting pipe is hermetically welded to the closed container 1, and the inner connecting pipe is welded to the refrigerant pipe 2a. In addition, the seal member 24
Is fitted into and attached to the suction passage 12 of the partition plate 10. In addition, in FIG. 1, the refrigerant pipe 2a portion press-fitted into the seal member 24 is omitted.

As described above, the suction pipe line penetrating the closed container 1 includes the refrigerant pipe 2a, the joint pipe 23 and the seal member 2.
It is composed of 4 etc. A specific method of forming this suction conduit will be described. The inner joint pipe and the outer joint pipe are brazed with copper to form the joint pipe 23. Next, the joint pipe 23 is fitted to the refrigerant pipe 2a, and copper is brazed between the inner joint pipe and the refrigerant pipe 2a. On the other hand, the seal member 24 is provided with the partition plate 10 alone in the suction passage 1
It fits into the inside of 2. Although not shown, the seal member 24 is expanded on the inlet side so that the refrigerant pipe 2a can be easily inserted. With the partition plate 10 incorporated in the closed container 1, the refrigerant pipe 2a is press-fitted into the seal member 24, and the outer joint pipe is fitted into a hole (not shown) of the closed container 1 and brought into contact therewith. Applying an electrode to the abutting outer connecting pipe and the outer connecting pipe and the closed container 1
By electrically welding and, the outer joint pipe and the closed container 1 are airtightly fixed to each other. This finally completes the formation of the suction line.

The operation of the hermetic compressor 20 described above will be described.

When the electric motor 21 is energized, the rotor 4 receives the rotational force from the stator 3 and rotates, and the crankshaft 5 fixed to the rotor 4 rotates. Due to the rotation of the two eccentric portions of the crankshaft 5, the two rollers 9 and 9A are eccentrically rotated in the compression chamber, and the vane 17 reciprocates in the vane groove. As a result, the refrigerant gas separated by the gas-liquid separator 2 is sucked into each low-pressure chamber 25 of the two compression elements, moves to the high-pressure chamber 26, and the high-pressure refrigerant gas is discharged from the discharge hole into the closed container 1. Is ejected.

The suction flow of the refrigerant gas will be specifically described. The refrigerant gas sucked from the suction pipe line is shunted from the suction passage 12 to both sides in the communication hole 13 as shown by an arrow 19,
It is sucked into the low pressure chamber 25 through the cylinder suction ports 14 and 14A.

In this compression operation, HFC is used as a refrigerant.
Since the system refrigerant is used, the discharge pressure is generally 1.5 times as high as that using the HCFC refrigerant, so that the space in the closed container 1 is filled with the refrigerant gas having the pressure 1.5 times. It will be. The high-pressure refrigerant gas in the closed container 1 is discharged onto the container upper member 1c by welding or the like.
Is discharged to the external high-pressure pipe via.

One suction pipe line of this embodiment is divided into partition plates 10.
FIG. 6 shows a result of comparison between the volumetric efficiency in the case of connecting to No. 2 and the volumetric efficiency in the case of the related art 1 in which two suction pipe lines are independently connected to two cylinders. As is clear from FIG. 6, the former volumetric efficiency shown in FIG.
It was confirmed that the same performance as that of the latter volumetric efficiency shown in (b) can be obtained.

In the above-described embodiment, since the thickness of the partition plate 10 is made thicker than the thickness of the cylinder 8 constituting the compression element to form the suction passage 12, even if only one suction passage 12 has the same flow path. A large road cross-sectional area can be secured, the suction resistance of the refrigerant gas can be reduced, and the compressor performance can be improved. Further, since the single suction pipe line that penetrates the closed container 1 is formed, the suction pipe line can be halved compared to the prior art 1, resulting in a simple structure, material cost, and assembly processing. It is possible to reduce the cost related to the cost and the like, and it is possible to eliminate the stress concentration between the two suction pipe lines in the closed container 1 and improve the pressure resistance,
It is possible to improve reliability. Further, the reliability can be sufficiently ensured even if an HFC-based refrigerant that is friendly to the global environment is used.

Next, a first modification of the partition plate 10 of this embodiment will be described with reference to FIGS. 7 and 8.

In this first modified example, the flow path of the partition plate 10 formed by the suction passage 12 and the communication hole 13 is formed in a substantially Y-shape symmetrically on both sides. As a result, when the refrigerant is shunted from the suction passage 12 through the communication hole 13, the refrigerant is gently shunted in both directions from the suction flow direction, and the flow resistance can be reduced as compared with the above-described embodiment. Therefore,
The suction pressure loss can be reduced and the compressor performance can be improved. And since this flow path is symmetrical on both sides, it can be equally exerted without impairing the performance of the two compression elements. The communication hole 13 can be formed relatively easily because it is only slanted with respect to the suction passage 12.

Next, a second modification of the partition plate 10 of this embodiment will be described with reference to FIGS. 9 and 10.

In this second modified example, the shunt portion of the substantially Y-shaped flow path of the first modified example is the rotational direction of the crankshaft 5 (roller 9).
Is tilted in the direction of rotation). As a result, when the refrigerant is shunted from the suction passage 12 through the communication hole 13, the refrigerant is shunted in the direction in which the low pressure chamber 25 is sequentially sucked and smoothly sucked into the low pressure chamber. Therefore, the suction pressure loss can be further reduced as compared with the first modified example, and the compressor performance can be further improved.

Next, a second embodiment of the hermetic rotary compressor of the present invention will be described with reference to FIGS. 11 to 13. The second embodiment is different from the first embodiment as described below, and is basically the same as the first embodiment in other points.

In this second embodiment, the partition plate 1 has the suction passage 12 extending centrally from two openings formed in the circumferential direction of the side surface.
It is formed to 0. The two suction passages 12 are formed in a radial shape, and the central portions of the two suction passages 12 communicate with the common communication hole 13. And the refrigerant pipe 2a
The suction pipe lines including the above are penetrated through the closed container 1 and independently connected to the respective suction passages 12.

According to the second embodiment, since the two suction passages 12 are provided, the flow passage cross-sectional area of one suction passage 12 can be made smaller than that of the first embodiment.
Thereby, the thickness of the partition plate 10 can be reduced. And since the suction passage 12 extends radially,
The distance between the openings of the suction passage 12 can be increased, and the concentrated stress between two independent suction pipe lines in the closed container 1 can be reduced. This can improve reliability. In addition, one suction passage 1
If the flow passage cross-sectional area of 2 is the same as that of the first embodiment, the total flow passage cross-sectional area of the two suction passages 12 can be increased,
The compressor performance can be improved.

Further, since the central portions of the two radially formed suction passages 12 communicate with the common communication hole 13, the suction structure can be made simple and inexpensive.
The suction resistance can be reduced by setting the flow passage cross-sectional area of the communication hole 13 to be larger than the total of the flow passage cross-sectional areas of the two suction passages 12.

Next, a third embodiment of the hermetic rotary compressor of the present invention will be described with reference to FIGS. 11 to 13. The second embodiment is different from the first embodiment as described below, and is basically the same as the first embodiment in other points.

In the third embodiment, the partition plate 10 is fixed to the closed container 1. Thereby, when the suction pipeline is connected to the suction passage 12, even if the connection load of the suction pipeline is applied to the partition plate 10, the closed container 1 receives the load, so that the partition plate 10 and the cylinders 8 and 8A are connected. A relative sliding force does not act between the bearings 7 and 11, and no displacement occurs between them. Therefore, it is possible to maintain the dimensional accuracy between them without requiring a special process for assembling them. The cylinders 8 and 8A and the bearings 7 and 11 are bolts 6 and 6A.
Thus, the partition plate 10 is fixed and supported.

Further, one suction passage 12 extending from the side opening to the center is formed in the partition plate 10, and one suction pipe line is connected to the suction passage 12. Based on this, the same effect as that of the first embodiment can be obtained. In the illustrated example, the partition plate 10 is thinner than the cylinders 8 and 8A, but if the same thickness as that of the first embodiment is adopted, the same effect can be obtained in that respect.

The partition plate 10 has a portion having the same outer diameter as the inner diameter of the closed container 1 (in the illustrated example, the entire outer periphery of the partition plate 10 matches the entire inner periphery of the closed container 1). Several parts are welded to the closed container. The partition plate 10 is provided with a plurality of lubricating oil holes 10a. Lubricating oil is accumulated above and below the partition plate 10 by the lubricating oil hole 10a, and the lubricating oil is easily supplied to the entire compression mechanism portion 22.

As a modification of the third embodiment, although not shown, a partition plate is fixed to a closed container by welding or the like, and a suction passage extending in the center from an opening having two side surface circumferential directions is provided. The suction pipe line penetrating the closed container may be independently connected to each suction passage. By doing so, the second embodiment
It is possible to combine the functions of the embodiments.

[0052]

As is apparent from the above description, according to the present invention, it is possible to obtain a hermetic rotary compressor which can reduce the cost and improve the reliability while ensuring the performance of the compressor.

Further, according to the present invention, it is possible to obtain a hermetic rotary compressor capable of improving the compressor performance while improving the reliability.

Further, according to the present invention, it is possible to obtain a hermetic rotary compressor capable of improving productivity while ensuring compressor performance.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing a hermetic rotary compressor of a first embodiment of the present invention.

FIG. 2 is a side view of FIG.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a plan view of a partition plate used in the hermetic rotary compressor of FIG.

5 is a sectional view taken along line BB of FIG.

FIG. 6 is a characteristic diagram showing the volumetric efficiency of the hermetic rotary compressor of FIG. 1 in comparison with a comparative example.

FIG. 7 is a plan view showing a first modification of the partition plate of FIG.

FIG. 8 is a sectional view taken along line CC of FIG.

9 is a plan view showing a second modification of the partition plate of FIG.

10 is a cross-sectional view taken along the line DD of FIG.

FIG. 11 is a side view showing a hermetic rotary compressor of a second embodiment of the present invention.

12 is a diagram showing a partition plate taken along the line EE in FIG.

13 is a cross-sectional view taken along line FF of FIG.

FIG. 14 is a sectional view showing a hermetic rotary compressor according to a third embodiment of the present invention.

15 is a sectional view taken along line GG of FIG.

16 is a sectional view taken along line HH of FIG.

[Explanation of symbols]

1 ... Airtight container, 2 ... Gas-liquid separator, 2a ... Refrigerant piping, 3 ...
Stator, 4 ... Rotor, 5 ... Crank shaft, 6, 6A ... Bolt, 7 ... Main bearing, 8, 8A ... Cylinder, 9, 9A
... Roller, 10 ... Partition plate, 11 ... Sub bearing, 12
... Suction passage, 13 ... Communication hole, 14 ... Cylinder suction port, 1
5 ... Gas-liquid separator suction port, 16 ... Discharge pipe, 17 ... Vane, 18 ... Spring, 19 ... Refrigerant flow direction, 20 ... Hermetic rotary compressor, 21 ... Electric motor part, 22 ... Compressor mechanism part, 23 ... Connecting pipe, 24 ... Sealing member, 25 ... Low pressure chamber, 26 ... High pressure chamber, 27 ... Balance weight, 30 ...
The compressor body.

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 3H029 AA04 AA11 AA12 AA13 AB03                       BB21 BB22 BB42 BB44 CC04                       CC06 CC12 CC13 CC15 CC22                       CC23 CC25 CC28 CC54

Claims (10)

[Claims] 1. A motor unit and a compression mechanism unit connected via a crankshaft are housed in a hermetically sealed container, and the compression mechanism unit is formed by two compression elements with a partition plate interposed therebetween, and each of the compression mechanism units is passed through a suction pipe line. In a hermetic rotary compressor configured to suck a refrigerant gas into a compression element, compress the refrigerant gas, and discharge the refrigerant gas into a space in the hermetic container, a thickness of the partition plate is made thicker than a thickness of the cylinder that constitutes the compression element. Then, one suction passage extending from the side opening to the center is formed in the partition plate, a communication hole is formed from the suction passage to both sides to reach the suction chamber of each compression element, and the suction container is penetrated. 1. A hermetic rotary compressor, wherein one of the suction pipe lines is connected to the suction passage. 2. The hermetic rotary compressor according to claim 1, wherein the thickness of the partition plate is 1.25 times or more the thickness of the cylinder. 3. The hermetic rotary compressor according to claim 1, wherein an HFC type refrigerant is used as a refrigerant for compression. 4. The hermetic rotary compressor according to claim 1, wherein the flow passage formed by the suction passage and the communication hole is formed in a substantially Y shape and symmetrically formed on both sides. 5. The hermetic rotary compressor according to claim 1, wherein the shunted portion of the communication hole is inclined in the rotation direction of the crankshaft to communicate with the low pressure chamber of each compression element. 6. An electric motor unit and a compression mechanism unit connected via a crankshaft are housed in a hermetically sealed container, and the compression mechanism unit is formed by two compression elements with a partition plate interposed therebetween, and each of the compression mechanism units is passed through a suction conduit. In a hermetic rotary compressor in which a refrigerant gas is sucked into a compression element, compressed, and discharged into a space inside the hermetic container, a suction passage extending centrally from two openings circumferentially in a side surface is provided in the partition plate. Forming a communication hole communicating with each of the suction passages and shunting to both sides to communicate with the suction chamber of each compression element, and connecting the two suction pipe passages penetrating the hermetic container to each of the suction passages. A hermetic rotary compressor characterized by being connected to each independently. 7. The hermetic rotary compressor according to claim 6, wherein the two suction passages are formed in a radial shape, and a central portion of the suction passages communicates with a common communication hole. 8. An electric motor section and a compression mechanism section connected via a crankshaft are housed in a hermetically sealed container, and the compression mechanism section is formed by two compression elements with a partition plate interposed therebetween, and each of them is passed through a suction conduit. In a hermetic rotary compressor that sucks a refrigerant gas into a compression element, compresses the gas, and discharges the compressed gas into the space inside the hermetic container, the partition plate is fixed to the hermetic container by welding or the like,
A hermetic rotary compressor, wherein one suction passage extending from a side opening to the center is formed in the partition plate, and one suction pipe line is connected to the suction passage. 9. An electric motor unit and a compression mechanism unit connected via a crankshaft are housed in a hermetically sealed container, and the compression mechanism unit is formed by two compression elements with a partition plate interposed therebetween, and each of the compression mechanism units is passed through a suction pipe line. In a hermetic rotary compressor that sucks a refrigerant gas into a compression element, compresses the gas, and discharges the compressed gas into the space inside the hermetic container, the partition plate is fixed to the hermetic container by welding or the like,
A suction passage that extends from the opening having two in the side surface circumferential direction to the center is formed in the partition plate, and the two suction pipe passages that penetrate the closed container are independently connected to the respective suction passages. A sealed rotary compressor. 10. The rotary compressor according to claim 8 or 9, wherein the cylinder and the bearing constituting the compression element are fixed to the partition plate with bolts or the like.