JPH02173390A - Horizontal type compressor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a horizontal compressor that is used, for example, in an air conditioner and has a rotating shaft arranged horizontally. The present invention also relates to a horizontal compressor in which the amount of lubricating oil discharged together with refrigerant gas to the outside of the compressor is small and a sufficient amount of lubricating oil can be stored in a closed container.

[Conventional technology]

Conventional horizontal compressors are, for example,
As stated in Japanese Patent Publication No. 48-33042,
A partition plate is installed to divide the inside of the compressor in a direction perpendicular to the rotating shaft.
The structure is such that the oil level on the opposite side of this partition plate is higher than the oil level on the motor side.

The former is provided with a communication pipe whose one end opens at the lower part of the partition plate on the motor side and whose other end opens at the upper part on the opposite compression mechanism side. The pressure of the refrigerant gas discharged to the motor side is used to push up the lubricating oil along with the gas toward the compression mechanism side, raising the oil level on the downstream side and making it easier to supply lubricating oil to the rotating shaft. .

On the other hand, the latter is provided with a waste passage passing through the rotating shaft so as to communicate the spaces on both sides of the partition plate, and a communication passage through which lubricating oil can move under the partition plate. Therefore, when refrigerant gas flows into the gas flow path, the pressure loss causes a pressure difference before and after the partition plate, and due to this pressure difference, lubricating oil passes through the communication path at the bottom of the partition plate to the downstream side of the waste. Since the curved surface on the motor side becomes lower as the rotor of the motor moves to the lower position, the rotor of the motor does not come into contact with the oil surface, and friction loss due to oil intervening in the gap with the stator can be eliminated.

[Problem to be solved by the invention]

The above conventional technology lowers the oil level on the motor side in order to supply the lubricating oil stored at the bottom of the closed container to the rotating shaft or to prevent the motor from contacting the lubricating oil level.
Care has been taken to make the opposite side higher.

However, there is no consideration given to operating the compressor with a wide range of rotational speeds, and when the gas flow rate inside the compressor increases during high-speed rotation, the pressure difference before and after the partition plate becomes too large, and depending on the operating condition, The lubricating oil may flow vigorously through the communication path at the bottom of the partition plate, blowing up the lubricating oil and being discharged from the discharge pipe along with the gas, or the lubricating oil may be stirred and discharged in the form of foam. there were. Further, when the gas flow rate increases, pressure loss before and after the partition plate increases, resulting in an increase in compressor input.

On the other hand, some of the above-mentioned conventional technologies have the problem that when the gas current flowing through the compressor decreases during low-speed rotation, the pressure difference across the partition plate becomes small, and the oil level on the motor side does not become sufficiently low.

The present invention improves the problems of the prior art described in "U" and reduces the appearance of lubricating oil being discharged outside the compressor even when the compressor rotation speed increases and the gas flow rate increases. It is possible to reduce the pressure loss inside the compressor and maintain a sufficient amount of lubricating oil in the sealed container.Also, even when the compressor rotation speed is low and the gas flow rate is reduced, the oil level on the motor side can be maintained. The objective is to provide a horizontal compressor that can keep the compressor input low and prevent an increase in compressor input.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a horizontal compression system in which an electric motor consisting of a stator and a rotor, and a compression mechanism directly connected to the electric motor by a horizontal rotating shaft are housed in a closed container with lubricating oil stored at the bottom. In the machine, a first partition plate having an oil/gas communication passage at the lower part divides the internal space of the closed container into a motor part space and a lubricating oil storage part; A gas flow path is provided with a second partition plate having an oil communication passage at the bottom, and an oil/gas separation space is formed on the first partition plate side of the lubricating oil reservoir divided by the second partition plate. , the gas discharge pipe of the compressor is opened in the space on the opposite side.

In the above configuration, the second partition plate can be made to function as a cylinder extension formed by extending the peripheral part of the cylinder of the compression mechanism section until it fits into the closed container.

Furthermore, since the compression mechanism section is inserted into the case in an assembled state, the diameter of the first partition plate is made smaller than the diameter of the outer circumference of the cylinder in order to facilitate assembly.

Further, the first partition plate may be attached and fixed to the side plate of the cylinder of the compression mechanism section on the side of the electric motor, and the second partition plate may be attached and fixed to the side of the cylinder opposite to the electric motor.

Further, in order to further reduce the amount of oil discharged together with the refrigerant gas, an oil droplet separation element such as a filter can be housed in the oil/gas separation space.

Furthermore, in order to keep the oil level in the motor space low during low-speed rotation with little compressed gas determination, it is effective to bend the peripheral portion of the first partition plate toward the motor side.

In addition, in order to further reduce the amount of oil discharged together with the refrigerant gas, in the oil/gas separation space surrounded by the first partition plate and the second partition plate, a gas inlet in the lower oil and a gas inlet in the upper gas It is effective to open the gas outlet.

Furthermore, in order to reduce the size of the compressor, it is effective to fix the vanes so that the sliding direction of the vanes is diagonally downward with respect to the center of rotation.

[Effect]

In the horizontal compressor of the present invention configured as described above, the oil level on the motor side is pushed down by the gas discharged into the space on the motor side of the first partition plate, and the lubricating oil passes through the lower communication path. is pushed up into the lubricating oil reservoir. Therefore, the oil level on the motor side can be kept low and contact with the rotor of the electric motor #J machine can be eliminated, and necessary lubricating oil can be stored in the lubricating oil storage section. Further, the gas discharged into the space on the motor side of the first partition plate passes through the communication path at the bottom of the -th partition plate, and passes through the space sandwiched between the first partition plate and the second partition plate. In this space, the gas floats in the oil, passes through the gas flow path in the upper part of the second partition plate, and flows out into the space on the opposite side. At this time, the oil level in the lubricating oil reservoir sandwiched by the second partition plate is maintained at the same oil level by the oil communication passage provided at the lower part of the second partition plate.

Therefore, the gas flowing into the lubricating oil reservoir is separated from the oil in the space between the first and second partition plates.
Since the gas with fewer oil droplets flows out into the gas pool in the lubricating oil storage section, the number of oil droplets that scatter in this space can be reduced, and from the discharge pipe that opens in this space, the gas flows into the refrigeration cycle. The amount of oil discharged can be reduced.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1, 2, and 3.

FIG. 1 is a longitudinal cross-sectional view showing a horizontal compressor according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line A-A showing the structure of the second partition plate in FIG. Figure 3 shows the first part of Figure 1.
It is a BB arrow sectional view showing the structure of the partition plate.

This horizontal compressor houses an electric motor 21 whose rotation speed can be controlled and a compression mechanism section 22 that is directly connected by a shaft 4 that is a horizontal rotation axis in a case 1 that is a closed container, and a lubricating oil 13 at the bottom of the case. is accumulating.

The electric motor 21 includes a stator 19 fixed to the case 1.
and a rotor 20 fitted onto the shaft 4.

The compression mechanism section 22 is fitted into a cylinder 2 (details will be described later) and a crank 3 provided on the shaft 4.
The roller 7 rotates eccentrically along the inside of the rotor 7.
The vane 1 reciprocates within the vane sliding groove 8 of the cylinder 2 while in contact with the cylinder 2, and partitions the inside of the cylinder 2 into a suction chamber and a compression chamber.
0, side plates 5 and 6 that serve as side walls that seal the bearing of the shaft 4 and both sides of the cylinder 2, a refrigerant gas suction port (not shown), a discharge pipe 24, and a refueling pump P related to the refueling device (details will be described later). ).

A sealed space is provided between the side plate 6 and the end plate 25, and the sound deadening chamber 14 is
From this muffling chamber 14, a side plate 6° cylinder 2.
A gas passage 15 is provided which penetrates the side plate 5 and discharges into the space on the motor 21 side.

Reference numeral 16 denotes a first partition plate fixed to the cylinder 2 together with the side plate 5. This partition plate is fixed to the inside of the case 1 with a slight gap, and separates the interior space of the case 1 from the motor space 43 and other spaces (the (Due to its function, it is referred to as the lubricating oil reservoir 44)
It is divided into two parts. An oil/gas communication path 31 that communicates the motor space 43 and the lubricating oil reservoir 44 is provided at the bottom of the first partition plate 6.

The cylinder 2 is provided with a projecting portion 23, which is fitted inside the case 1 with almost no gap, and also serves as a second partition plate that divides the space of the lubricating oil reservoir 44 in the case 1 interior space into two. As shown in FIG. 2, a waste passage 41 is opened at the upper part of the projecting part 23, and an oil communication passage 30 is provided at the lower part.

In the lubricating oil reservoir 44, an oil/scum separation space 29 is formed in the space sandwiched between the first partition plate 16 and the cylinder 2 which also serves as the second partition plate, and the remaining space is separated from the gas reservoir 3.
A refrigerant waste discharge vibe 24 is opened at 4.

The outline of the oil supply pump P in the compression mechanism section 22 is as follows. Lubricating oil suction port 2 at the bottom of cylinder 2
7, the back surface 11 of the vane 10 and the vane sliding groove 8,
A pump chamber for oil supply surrounded by a cover plate 28 that also serves as a mounting seat for the oil supply pipe 32 and a splash hole of the cylinder 2, which has a cover plate 26 that closes this groove 8 and a lubricant discharge] 36. 12.

The end plate 25 is provided with a lubricating oil supply D33 that communicates with the shaft hole 17 of the shirt 1-4, and is connected to the pump chamber described in 1.
An oil supply pipe 32 is provided that communicates with 2. Branch holes 1-8 are bored in the shirts 1-4, which communicate with the shaft hole 17 and each oil supply portion of the compression mechanism section 22.

The operation of the horizontal compressor configured as follows will be explained.

When the horizontal compressor is operated and the shirt 1-4 rotates, the roller 7 rotates accordingly, and the vane 10 causes the blade 9 to rotate.
It reciprocates within the vane sliding groove 8 of the cylinder 2 while being pushed by the vane sliding groove 8 of the cylinder 2 with its tip abutting against the roller rough. And cylinder 2
The refrigerant is compressed by changing the volume of the area surrounded by , roller 7, and vane. The gas compressed in the cylinder 2 flows into the silencing chamber 14 from a discharge valve (not shown), and from there passes through the gas flow path 15 into the case 1 divided by the first partition plate 16. It is discharged into the motor space 43.

The discharged gas pushes down the lubricating oil level in the motor space 43, passes through the oil/gas communication path 31 at the bottom of the first partition plate 16, and is connected to the cylinder protrusion 23, which is the second partition plate.
In this space, the gas blows up from the oil pushed up into the lubricating oil reservoir 44, passes through the gas passage 41 in the upper part of the cylinder 2, and enters the gas reservoir 34. leaks into The gas is then discharged through the discharge pipe 24 to the refrigeration cycle. On the other hand, lubricating oil is supplied to the cylinder 2 through the oil communication passage 30 in the cylinder 2 door.
The lubricating oil is stored in the lubricating oil storage portion 44 so that the oil level is the same in both the front and rear.

Next, the operation of the oil supply pump P will be explained. During the suction stroke in which the volume inside the pump chamber 12 increases due to the reciprocating motion of the vane 10, two inlets open to the pump chamber 12, that is, a discharge port 36. Lubricating oil is sucked in from both sides of the suction port 27, but during the suction stroke, due to the inertia of the oil in the oil supply pipe 32, there is a large resistance in the reverse flow direction, and much of the oil is sucked into the pump chamber 2. The oil flows in from the oil suction port 27, and in the latter half of the suction stroke, oil also flows back from the oil supply pipe 32 described above.

On the other hand, in the discharge stroke where the vane 10 descends and the volume inside the pump chamber 12 decreases, in the first half of the discharge stroke, the forward resistance is large due to the inertia of the oil in the oil supply pipe 32, but the oil suction port 27 The resistance is large, reducing the amount of oil that flows backwards from here.

In addition, in the latter half of the discharge stroke, the inertia of the oil in the oil supply pipe 32 becomes a negative resistance, and most of the oil pushed out from the pump chamber 12 is distributed to the oil supply pipe 32, and in some cases, the inertia of the oil in the oil supply pipe 32 becomes a negative resistance. It can also be sucked in from.

Therefore, the amount of oil flowing out into the oil supply pipe 32 is larger than the amount of oil flowing back through the oil suction port. In this way, considering the change in flow rate during one rotation, an average amount of oil supplied to the oil supply pipe 32 side can be obtained.

Lubricating oil discharged from the oil supply pipe is supplied to the shaft hole 17 of the shaft 4, and is sent to the required sliding portion through the branch hole ]8.

As explained above, according to this embodiment, the gas flow path 1
Since the oil level in the motor space 43 can be pushed down by the gas discharged from 5, the rotor 20 does not come into contact with the oil level, and friction loss due to oil intervening between the rotor 20 and the stator 19 is reduced. It has the effect of eliminating

The pushed down oil passes through the oil/gas communication path 31 at the bottom of the first partition plate 16 and is pushed up and stored in the lubricating oil reservoir 44, so that the required amount of oil can be stored in the case 1. Therefore, since the refrigerant concentration of the oil can be kept below a certain value, there is an effect that the oil is diluted by the refrigerant and there is no problem that the oil viscosity decreases too much, which interferes with the lubrication of bearings and the like.

The gas discharged into the electric motor space 43 passes through the oil/gas communication passage 31 at the bottom of the first partition plate 16 and is ejected into the oil in the lubricating oil reservoir 44. A cylinder projecting portion 2 that also serves as the first partition plate 16 and the second partition plate
By providing an oil/gas separation space 29 between the cylinder 2 and the cylinder 2, the gas ejected into this space floats in the oil, and after the oil and gas are separated on the oil surface, the oil and gas separation space 29 is provided at the top of the cylinder 2. The oil passes through the gas flow path 41 and flows into the gas reservoir 34, where the oil droplets are further separated. Therefore, it is possible to reduce the amount of oil that passes through the discharge pipe 24 and is discharged together with the gas into the refrigeration cycle. There is an effect that can be done.

In addition, as in this embodiment, the oil suction port 27 of the oil supply pump P
By opening only on the side plate 6 side of the cylinder 2, which is the second partition plate, there is less influence of agitation due to gas ejected from the oil/gas communication passage 31 at the bottom of the first partition plate 1.6. Since lubricating oil can be sucked from the oil sump,
This has the effect of supplying bubble-free lubricating oil to the sliding parts.

In this embodiment, an oil/gas separation space 2 is provided between the first partition plate 16 and the cylinder projecting portion 23 which also serves as the second partition plate.
An embodiment in which an oil droplet separation element such as a filter is provided in this space will be described with reference to FIGS. 4 and 5.

4 corresponds to a cross-sectional view taken along arrows AA in FIG. 1, and FIG. 5 corresponds to a cross-sectional view taken along arrows BB in FIG. Figure 4,
In FIG. 5, parts with the same symbols as in FIGS. 2 and 3 are the same parts as in the previous embodiment, and parts not shown have the same structure as the horizontal compressor shown in FIG. 1. Therefore, its explanation will be omitted.

30, 38, and 41 are communication passages provided in the projecting portion 23 of the cylinder 2 that also serves as a second partition plate, and from their functions, they are the oil communication passage 30, the oil/gas communication passage 38. It is called a gas communication path 41. Reference numeral 39 denotes a filter provided in the oil/gas separation space 29, and is provided so as to close the gas communication path 41 and the oil/gas communication path 38.

In the horizontal compressor configured in this way, the gas flow path 15
The compressed gas discharged into the motor space 43 of the case 1 divided by the first partition plate 16 pushes up the lubricating oil level in this space, and the oil/gas communication path 31 at the bottom of the first partition plate 16 and ejects into the oil in the oil/gas separation space 29. In this space, the gas blows up through the oil, and the oil passes through the oil communication passage 30 provided at the bottom of the cylinder 2, which also serves as the second partition plate, to maintain the same level of oil level before and after the second partition plate. , the necessary lubricating oil is stored in the lubricating oil reservoir 44 .

The gas separated in the oil/gas separation space 29 is passed through the filter 3
At 9, after oil droplets contained in the gas are separated, the gas passes through the gas flow path 41, flows out to the gas reservoir 34, and is discharged from the discharge pipe 24 to the refrigeration cycle.

As explained above, according to this embodiment, the amount of oil discharged from the discharge pipe 24 of the horizontal compressor to the refrigeration cycle, as shown in the first embodiment, can be further reduced by the filter 39. effective.

In addition, in this embodiment, the cylinder 2 which also serves as the second partition plate
Although an oil/gas communication path 38 was provided in the overhanging portion 23,
If the oil/gas separation space 29 is provided between the first partition plate 16 and the second partition plate, even if the cross-sectional area of the communication passage of the second partition plate is increased, the oil discharged from the compressor will be The increase in quantity is small;
This has the effect of reducing the weight of the cylinder 2.

Next, other embodiments will be described.

6 is a longitudinal sectional view showing a horizontal compressor according to a third embodiment of the present invention, FIG. 7 is a sectional view taken along the line C-C in FIG. 6, and FIG. It is a sectional view taken along the line DD.

In each case, the parts given the same reference numerals as in FIGS. 1 to 3 are the same parts as in the first embodiment, and therefore the explanation thereof will be omitted.

In FIG. 7, a line connecting the center of the rotating shaft 4 of the cylinder 2, which also serves as a second partition plate, and the pump chamber 12 is installed obliquely with respect to the vertical direction, and the oil communication passage 30 of the projecting portion 23 is directed vertically downward. It is set up. Further, the outer periphery of the "-"th partition plate 16 is circular, and an oil/gas communication passage 37 is provided at its lower part, which is cut upward toward the oil/gas separation space 29 so that the opening is at the upper side.

In the horizontal compressor configured in this way, the gas flow path 15
The compressed gas discharged into the motor space 43 divided by the first partition plate 16 pushes down the lubricating oil level in this space, passes through the oil/gas communication passage 37 at the bottom of the first partition plate 16, and becomes oil and gas. The oil is ejected into the oil in the waste separation space 29. In this space, the gas floats to the surface and separates from the oil, passes through the gas communication passage 41 at the top of the cylinder overhang 23 that also serves as a second partition plate, flows out into the gas reservoir 34, passes through the discharge pipe 24, and enters the refrigeration cycle. is discharged to. Further, the oil level level before and after the second partition plate is maintained at the same level by an oil communication passage 30 provided at the lower part of the cylinder projecting portion 23, and necessary lubricating oil is stored in the lubricating oil storage portion 44.

According to this embodiment, as in the first embodiment, the necessary amount of lubricating oil can be stored in the case 1 while reducing the amount of oil discharged from the compressor.

Furthermore, as in this embodiment, by opening the oil communication passage 30 at the bottom of the second partition plate near the bottom of the case 1, the gas ejected from the oil/scum communication passage 37 at the bottom of the first partition plate 16 can be prevented. , it does not spread to the oil communication passage 30 and spout out from there, and air bubbles are not mixed into the oil in the lubricating oil reservoir 44, which has the effect of stabilizing the state of the oil sucked in from the suction port 27 of the oil supply pump. .

In addition, in this embodiment, the oil/gas communication passage 37 at the bottom of the first partition plate 16 is cut and raised so that the upper part is open, so that the gas flowing therein is guided upward and This has the effect of further preventing the oil from flowing into the oil communication passage 30 provided in the partition plate No. 2.

Next, another example will be described.

9 is a longitudinal sectional view showing a horizontal compressor according to a fourth embodiment of the present invention, FIG. 10 is a sectional view taken along the line E-E in FIG. 9, and FIG. It is a sectional view taken along the line FF.

In each episode, the same reference numerals as in FIGS. 1 to 3 are the same parts as in the first embodiment, so a description thereof will be omitted.

2 is a cylinder that is fixed to the case 1 through a projecting portion 23'; 49 is a second partition plate; the outer periphery of the partition plate is approximately circular; Fixed. This second partition plate 49
A gas passage 50 is provided in the upper part, an oil communication passage 51 is provided in the lower part,
A silencing chamber 14 is formed between it and the side plate 6, and serves as a mounting seat for the oil supply pipe 32 and an end plate for opening the pump chamber 12.

Further, an oil/gas separation space 29 is formed between the first partition plate 16 and the second partition plate 49.

The space between the cylinder 2 and the case 1 also forms part of the oil/gas separation space.

In the horizontal compressor configured in this way, the gas flow path 15
From the electric motor section space 43 divided by the first partition plate 16
The compressed dregs discharged into the space pushes up the lubricating oil level in this space, passes through the oil/gas communication passage 31 at the bottom of the first partition plate 16, and
It spouts out into the oil/gas separation space 29. The gas floats in the oil in this space, is separated from the oil, and flows out from the gas passage 50 on the upper part of the second partition plate 49 to the gas basin 34, and from there,
It passes through the discharge pipe 24 and is discharged to the refrigeration cycle.

On the other hand, the lubricating oil is supplied to the oil communication passage 51 at the bottom of the second partition plate 49.
Thus, the heights of the front and rear curved surfaces are kept at the same level, and the necessary amount of lubricating oil is stored in the lubricating oil storage portion 44.

As described above, according to the present embodiment, as in the first embodiment, the necessary amount of lubricating oil can be stored in the case 1 while reducing the amount of oil discharged from the compressor. Further, as in this embodiment, the cylinder 2 is sandwiched between the first partition plates 16 and 16.
By providing the second partition plate 49, the space between the cylinder 2 and the case 1 can be used as a part of the oil/gas separation space 29, which improves the oil and gas separation effect and improves the compressor This has the effect of further reducing the amount of oil discharged.

Furthermore, in this embodiment, since the peripheral portion of the first partition plate 16 is formed by being bent toward the motor side 43, the flow path resistance between the peripheral portions can be increased. For this reason, the oil level in the motor side 43 space when the compressed gas flow rate is small is
The flow path resistance can be lowered by the increased flow path resistance. This configuration is similar to the above-mentioned first. Second. It can also be applied to the third other embodiment.

Although each embodiment has been described above using a rotary compressor as an example, the present invention is not limited to a rotary compressor, and similar effects can be obtained even when applied to, for example, a scroll compressor.

〔Effect of the invention〕

As described above in detail, according to the present invention, the discharge gas of the compressor pushes down the curved surface of the motor space divided by the fourth partition plate to below the height of the lower edge of the rotor, while the lubricating oil reservoir Since the curved surface of the rotor can be pushed up, there is no friction loss due to contact between the rotor and the oil surface, and sufficient lubricating oil can be stored in the compressor. Moreover, since a second partition plate is provided in the lubricating oil reservoir and an oil/gas separation space is formed between this and the first partition plate, oil and gas are ejected from the communication path at the bottom of the first partition plate in this space. This has the effect of being able to separate gas and oil, thereby reducing the amount of oil that is discharged together with the gas from the gas discharge pipe that opens into the remaining space of the lubricating oil reservoir.

If the cylinder projecting portion of the compression mechanism portion also serves as the second partition plate, no special parts are required as the second partition plate, and the second partition plate can be manufactured at low cost.

By attaching and fixing the first partition plate to the side plate on the motor side of the cylinder of the compression mechanism section and the second partition plate to the side plate on the side opposite to the motor of the cylinder, the space between the cylinder and the closed container can be Since it can be used as part of the separation space, the oil and gas separation effect is improved and the amount of oil discharged from the compressor can be further reduced.

If an oil droplet separation element such as a filter is housed in the oil/gas separation space, the oil and gas separation effect will be further improved.

In addition, if the peripheral part of the first partition plate is bent toward the motor side, the flow path resistance of the gap around the first partition plate will increase, so even during low-speed rotation with a small flow rate of compressed gas, the space in the motor part will be reduced. Can keep oil level low.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of a horizontal compressor according to a first embodiment of the present invention, and FIG. 2 is a view taken along arrow A-A showing the shape of a cylinder that also serves as the second partition plate in FIG. The sectional view, FIG. 3, is a sectional view taken along the line B-B showing the shape of the first partition plate in FIG. 4 and 5 are a cross-sectional view showing the shape of a cylinder that also serves as a second partition plate of a horizontal compressor according to a second embodiment of the present invention, and a cross-sectional view showing the shape of a first partition plate, respectively. It is a front view. FIG. 6 is a vertical cross-sectional view of a horizontal compressor according to a third embodiment of the present invention, and FIG. 7 is a cross-sectional view taken along the line C-C showing the cylinder shape that also serves as the second partition plate in FIG. FIG. 8 is a sectional view taken along the line D--D showing the first partition plate in FIG. 6. 9 is a longitudinal sectional view of a horizontal compressor according to a fourth embodiment of the present invention, FIG. 10 is a sectional view taken along the line E-E showing the shape of the second partition plate in FIG. The figure is a cross-sectional view taken along line FF, showing the shape of the first partition plate in FIG. 9. DESCRIPTION OF SYMBOLS 1...Case, 2...Cylinder, 3...Crank, 4...Shaft, 5...Side plate, 6...Side plate, 7...
...Roller, 8...Groove, 9...Spring, 10...Base, 1],...Vane back, 12...Pump chamber, 13
... Lubricating oil, 14 ... Silencer, 15 ... Gas flow path, 16 ... First partition plate, 17 ... Shaft hole, 18
... Branch hole, 19 ... Stator, 20 ... Rotor, 21 ... Electric motor, 22 ... Compression mechanism section, 23.23
'... Cylinder overhang, 24... Discharge pipe, 25... End plate, 26, 28... Lid plate, 27...
Oil suction port, 29... Oil/gas separation space, 30... Oil communication passage, 31... Oil/gas communication passage, 32... Oil supply pipe, 33... Oil supply port, 34... Gas Tamari, 37...
・Oil/gas communication path, 38...Oil, gas communication path, 39・
...filter, 41...gas flow path, 43...motor section space, 44...lubricating oil storage section, 49...second partition plate,
50... Gas flow path, 51... Oil communication path. 1st concave il 1st figure 7th figure, j'7 /il 7 deaf

Claims (1)

[Claims] 1. A stator,
In a horizontal compressor that houses an electric motor consisting of a rotor and a compression mechanism directly connected to the electric motor by a horizontal rotating shaft, the lower part divides the internal space of the closed container into two into a motor part space and a lubricating oil storage part. a first partition plate having an oil/gas communication passage on the side, and a second partition plate on the lubricating oil reservoir side having a gas flow passage in the upper part and an oil communication passage in the lower part;
An oil/gas separation space is formed on the first partition plate side of the lubricating oil reservoir divided by the second partition plate, and a gas discharge pipe of the compressor is opened in the space on the opposite side. A horizontal compressor featuring: 2. The horizontal compressor according to claim 1, wherein the peripheral part of the cylinder of the compression mechanism section is extended until it fits into the closed container, and this cylinder projecting part also serves as a second partition plate. 3. The horizontal compressor according to claim 1, wherein the diameter of the outer circumference of the cylinder is larger than the diameter of the first partition plate. 4. The horizontal compressor according to claim 1, wherein the first partition plate is attached and fixed to the side plate of the cylinder of the compression mechanism section on the side of the electric motor, and the second partition plate is fixed to the side plate of the cylinder on the side opposite to the electric motor. . 5. The horizontal compressor according to claim 1, wherein an oil droplet separation element such as a filter is housed in the oil/gas separation space. 6. The horizontal compressor according to claim 1, wherein a peripheral portion of the first partition plate is formed by being bent toward the electric motor side. 7. The oil area surrounded by the first partition plate and the second partition plate
Claim 1 characterized in that in the separation space, a gas inlet is opened in the lower oil and a gas outlet is opened in the upper gas.
Horizontal compressor as described in section. 8. The compression mechanism includes a cylinder in which a vane sliding groove is bored, a roller that is fitted into the crank of the rotating shaft and eccentrically rotates along the inside of the cylinder, and a roller that rotates eccentrically along the inside of the cylinder, and a cylinder that is in contact with the roller and rotates inside the vane sliding groove. Claim 1, characterized in that the cylinder comprises a vane that reciprocates and two side plates that serve as both side walls of the cylinder, and the sliding direction of the vane is fixed diagonally downward with respect to the center of rotation. Horizontal compressor as described.