TWI743157B - Compressor arrangement with integrated motor - Google Patents

Abstract

The invention refers to a rotary compressor arrangement (100) comprising a stationary member (40) centered at a shaft axis (X) and a rotary member (90) rotating around the stationary member (40); the stationary member (40) and the rotary member (90) being inside a hermetically sealed inner volume within the compressor arrangement (100); the compressor arrangement (100) comprising a stator (210) with a winding arrangement (211) generating an electromagnetic force inside the stator (210), the stator (210) being arranged outside the hermetically sealed inner volume; the compressor arrangement (100) further comprising a plurality of magnets (221) directly attached to the rotary member (90) and facing the winding arrangement (211) in the stator (210) such that the rotary member (90) is entrained in rotation by a rotating electromagnetic field from the stator (210).

The invention further refers to a cooling/refrigerating system comprising such a rotary compressor arrangement (100).

Description

Compressor configuration with integrated motor

The present invention relates to a compressor configuration that includes an integrated motor, and more specifically relates to a vane type rotary compressor configuration that is preferably used in a cooling or refrigeration system.

Currently, different types of compressors are used in cooling or freezing systems. The gas compressor is a mechanical device that increases the pressure of a gas by reducing the volume of the gas, and reducing the gas volume is by changing the gas state, and the gas temperature is also changed. Therefore, when the gas passes through a condenser, it can be used as a refrigerant in a refrigerating compressor.

For household applications, due to the reduced size, the vane rotary compressor is usually used as a refrigerating compressor. Generally speaking, a vane rotary compressor includes a circular rotor that rotates inside a larger circular cavity configured on the inner wall of the compressor casing. The center of the rotor is offset from the center of the cavity, resulting in eccentricity. The blades are arranged in the rotor, and generally slide in and out of the rotor, and are stretched to seal on the inner wall of the cavity to establish a blade in which a working fluid (generally a refrigerant gas) is compressed room. During the suction part of the cycle, refrigerant gas enters a compression chamber through an inlet port, where the volume is reduced by the eccentric movement of the rotor, and then the compressed fluid is discharged through an outlet port.

Although the small-sized vane rotary compressor has advantages, the leakage of refrigerant through the inner wall surface of the compressor casing is its disadvantage. This is the reason why these compressors also use lubricating oil. Lubricating oil has two main functions: one is to lubricate the moving parts, and the other is to seal the clearance between these moving parts, so that it can affect the efficiency of the compressor. The adverse effect of gas leakage is minimized.

There are different types of refrigeration compressors, which vary according to their configuration. Generally speaking, the refrigeration compressor can be an open type, a semi-closed type, or a closed type. In a hermetically sealed compressor, the compressor and its drive motor are coupled to the same shaft and enclosed in a rigid enclosed housing. This type of hermetically sealed compressor is airtight and ensures that the working fluid does not leak to the outside. For example, they are generally used in household refrigerators at home, in freezers, or in air conditioners. The interior of the semi-hermetic compressor also includes a housing for the compressor and its drive motor; however, the housing can be opened to access both the motor and the compressor itself when repairs are needed. On the other hand, the open-type compressor is configured without a compressor or motor housing, so it is non-leakproof and easy to leak. It relies on a shaft seal that needs to be lubricated to prevent leakage of working fluid and maintain internal pressure. .

One of the main advantages of a hermetic compressor is that it is configured as a single unit, so it can be easily transported due to its miniaturization. In addition, it is less noisy, and its installation is very easy. However, the compressor is generally not expected to be repaired, so when a problem occurs, the entire unit is replaced with a new compressor.

Compared with hermetic compressors, semi-hermetic compressors are easier to repair due to their accessibility. However, the occurrence of some leakage results in a certain loss of compressor performance.

In both hermetic and semi-hermetic compressors, the electronic equipment and wiring in the casing are exposed to very high temperatures due to being arranged inside the enclosed casing, making these types of compressors expensive. In addition, the winding may contaminate the entire system if it burns.

On the other hand, in an open configuration, the compressor and motor can be easily accessed for repair in case of failure, and maintenance is cheap and easy. Since the motor outside the enclosed chamber works under ambient conditions, it allows a more diverse selection of motors and the use of cheaper motor types. The disadvantage of this type of configuration is that these compressor types are noisy, non-small, and there is a certain degree of gas leakage at the motor/chamber connection, which leads to loss of motor performance. In addition, lubricating oil is required in the shaft seal so that the shaft seal maintains its sealing properties.

Therefore, what is desired is to provide a compressor that has the advantages of open, hermetic, and semi-hermetic compressors, while avoiding their disadvantages.

In the current best technology (for example, document EP 2307734 B1), a rotary compressor configuration with a rotating shaft is known, in which the motor structure is integrated inside the compressor configuration. The overall structure is covered by an outer shell, which hermetically seals both the motor and the compressor, thereby forming a hermetic compressor. This structure is small, but it has the disadvantage that it reaches a high temperature inside the electronic component and cannot be properly cooled.

The compressor configuration according to the present invention provides a small, enclosed, quiet and cost-effective solution: the compression chamber is in a sealed internal volume; the electronic components work outside and under ambient conditions, and are There is no direct physical connection between them, so any leakage is prevented.

According to a first aspect, the present invention relates to a rotary compressor arrangement 100, which includes a fixed member 40 and a rotating member 90, the fixed member is centered on an axis X, and the rotating member rotates around the fixed member 40 The fixed member 40 and the rotating member 90 are located in a hermetically sealed internal volume within the compressor arrangement 100; the compressor arrangement 100 includes a stator 210, which has a winding arrangement 211, which generates a winding arrangement in the stator 210 Electromagnetic force, the stator 210 is arranged outside the enclosed internal volume. The compressor arrangement of the present invention further includes a plurality of magnets 221, which are directly attached to the rotating member 90 and facing the winding arrangement 211 in the stator 210, so that the rotating member 90 is pinched by a rotating electromagnetic field from the stator 210 With rotation.

According to a preferred embodiment, the rotary compressor arrangement 100 of the present invention further includes a rolling member 10, which is arranged eccentrically with respect to the fixed member 40, so that a chamber is established between it and the fixed member; the arrangement 100 further It includes at least one satellite element 50, which is entrained and rotated by the rotating member 90; at least one satellite element 50 orbits at an offset axis Y and entrains the rolling member 10 to rotate and secures the fixed member 40 and the rolling member 10 contacts between.

Preferably, the rotary compressor arrangement of the present invention further includes an upper plate and a lower plate, and the upper plate and the lower plate are arranged to be closed in a tight manner between the fixed member 40 and the rolling member 10. At least one compression chamber 110.

Generally speaking, the rotary compressor arrangement further includes at least one segment element arranged between the upper plate and/or the lower plate to allow the tight sealing of the at least one compression chamber 110 and the movement of the rolling member 10. At least one segment element 80 preferably includes a low-friction material.

In the arrangement of the rotary compressor of the present invention, it is preferable that at least a pair of satellite elements 50, 50' are arranged at a height in the rotating member (90) so that the magnet 221 is positioned between them.

Generally speaking, in the rotary compressor configuration of the present invention, the rotating member 90 is configured as a cylinder, and the magnet 221 is directly attached to an outer diameter circumference of the rotating member.

Generally speaking, the satellite components are mounted above the bearing 300 (preferably a ball bearing).

In the rotary compressor configuration of the present invention, the stator 210 generally includes a laminated magnetic core embedded in a resin material, and the stator 210 is an integral part of the motor housing 230.

According to a preferred embodiment, in the rotary compressor configuration of the present invention, the separation distance between the winding configuration 211 and the magnet 221 is as small as possible, generally less than about 1 mm.

The rotary compressor arrangement of the present invention preferably further includes at least one sealed piston 30, which can slide in the fixed member 40 during the rotation of the rolling member 10, thereby establishing at least one compression chamber 110 whose volume is determined by It is reduced by the rotation of the rolling member 10 so that a compressible fluid (preferably a refrigerant gas) is compressed before being discharged.

Generally speaking, in the rotary compressor configuration of the present invention, the lubricating oil is also provided with the compressible fluid, which is compatible with the compressible fluid.

According to a second aspect, the present invention relates to a cooling/freezing system comprising a rotary compressor arrangement 100 as previously described.

10‧‧‧Rotating member

30‧‧‧Sealed Piston

31‧‧‧Slot

40‧‧‧Fixed member

50‧‧‧Satellite Components

50'‧‧‧Satellite components

50"‧‧‧Satellite Components

50'''‧‧‧Satellite components

90‧‧‧Rotating member

100‧‧‧Rotary compressor configuration

110‧‧‧Sealed compression chamber

130‧‧‧Fluid inlet

140‧‧‧Fluid outlet

210‧‧‧Stator

211‧‧‧Winding configuration

221‧‧‧Magnet

230‧‧‧Motor housing

300‧‧‧Bearing

When a person familiar with the art reads the following detailed description of the embodiments of the present invention in conjunction with the accompanying drawings, the further features, advantages, and objectives of the present invention will be apparent.

Figure 1 shows a schematic diagram of the main components in a compressor configuration with an integrated motor according to the present invention.

FIG. 2 shows an external view of the compressor configuration with an integrated motor according to the present invention as shown in FIG. 1. FIG.

3 shows a schematic diagram of a motor stator and motor magnet in a compressor configuration with an integrated motor according to the present invention.

4 shows a schematic diagram of the arrangement of the stator and windings and rotating elements in a compressor arrangement with an integrated motor according to the present invention.

Figure 5 shows a cross-sectional view of a compressor configuration with an integrated motor according to the present invention.

Fig. 6 shows a top view of a compressor configuration with an integrated motor according to the present invention.

Figures 7a, 7b, and 7c respectively show exploded views of the external configuration, the rotating element including the magnet, and the stator including the winding in a compressor configuration with an integrated motor according to the present invention.

8a, 8b, 8c, and 8d respectively show the external configuration in a compressor configuration with an integrated motor according to the present invention; a rotating element including a magnet; rolling elements, blades, and a fixed body; and including windings The exploded view of the stator.

For example, as shown in FIG. 6, the present invention relates to a one-blade rotary compressor configuration, hereinafter referred to as a rotary compressor configuration 100 or simply a rotary compressor 100. The rotary compressor 100 of the present invention is preferably used in a cooling or refrigeration system, and the working fluid is generally any compressible gas, preferably a refrigerant gas or a mixture containing a refrigerant gas.

The rotary compressor 100 includes an inlet 130 and an outlet 140 through which the working fluid enters the compressor, and once compressed, the fluid leaves the mentioned compressor through the outlet.

In a preferred embodiment of the present invention, as can be seen in (for example) FIG. 8c, the compressor further includes a rolling member 10 in which is disposed a fixed body 40 centered on an axis x. The compressor also includes a vane or sealed piston 30, which can be slid into a slot 31 so as to contact the inner wall of the rolling member 10 and establish a sealed compression chamber in which fluid will be compressed, as will be further detailed Interpreter. As shown in FIG. 8c, the fixed body 40 is arranged in the rolling member 10 in an eccentric manner. Referring back to FIG. 6, the inlet 130 and the outlet 140 for the working fluid are arranged in the fixed body 40, and are preferably arranged in the vicinity of the sealing piston 30.

The configuration of the present invention is made so that the shaft (and axis X) and the fixed body 40 are a single piece in the rotary compressor 100 and are static. However, it is the rolling member 10 that rotates around the main body 40. In fact, the rolling member rolls over the outer surface of the fixed main body 40 entrained in rotation via at least one satellite element 50, as will be further explained.

The sealing piston 30 can slide in a slot 31 arranged in the main body 40: during the entire rolling period of the rolling member 10 around the fixed main body 40, pressure is maintained in this slot 31 so that the sealing piston 30 contacts the rolling member 10 Inner wall. To achieve this, there is a stretching device in the slot 31, which applies pressure above the sealing piston 30 so that the sealing piston contacts the inner wall of the rolling member 10: any kind of stretching device (generally Tie a spring), but a pneumatic device is also feasible. In the configuration of the present invention, as shown in FIG. 6, the sealed piston 30 establishes a compression chamber 110 having a variable volume. More than one sealed piston can be used in different embodiments of the invention, thereby creating more than one compression chamber.

In the rotary compressor configuration of the present invention, the reference system is actually inverted: the main body 40 is fixed, and the rolling member 10 is moved by a pressure exerted by at least one satellite element 50 when it rotates over it. Scroll above it.

The configuration of the present invention also includes at least one satellite element 50, which is mounted on a rotating member 90: by the rotation of the rotating member 90, the satellite element 50 is pushed above the rolling member 10 and rolls around the rolling member , Push the rolling member toward the fixed body 40. Therefore, when the rotating member rotates around the rolling member 10, there is always a contact between the rolling member 10 and the main body 40 (generally, when the fixed main body 40 and the rolling member 10 are cylindrical, there is a longitudinal contact line ). It is also obvious that this contact system is aligned with the position of the satellite element 50. A sealed compression chamber 110 with a variable volume (decreasing with time) is established by the sealing piston 30 contacting the inner wall of the rolling member 10, in which the working fluid is compressed before being discharged.

The satellite element is configured to be offset from the axis X, located at, for example, one of the axis Y shown in FIG. 5, and the satellite element is orbited around the fixed body 40. The satellite element 50 contacts the outer wall of the rolling member 10 under a certain pressure or force (that is, the distance between the axis X and the axis Y such that this force is applied and maintained during the entire orbital movement of the satellite element): as previously explained Moreover, the contact between the satellite element 50 and the outer wall of the rolling member 10 under pressure causes the satellite element 50 to entrain the rolling member 10 to rotate above the fixed body 40 (actually rolling), similar to a gear configuration.

When (for example) viewing Figure 7b or Figure 8b, a pair of satellite elements 50 and 50' (for example) are arranged at a certain height, pressing the upper side of the outer wall of the rolling member 10, and one of the fixed main body 40 and the rolling member 10. Internal contact alignment. These drawings also represent (for example) another pair of satellite elements 50" and 50"', which are arranged in height and also press above the outer wall of the rolling member 10. In this configuration, the inside of the rolling member 10 The wall and the fixed body 40 are in contact at an intermediate point between the external contacts of the paired satellite elements 50, 50' and 50", 50"'.

The satellite component is generally mounted above the bearing 300 (preferably a ball bearing), as shown in (for example) FIG. 1 or FIG. 4.

Generally speaking, the compressor of the present invention is configured to work with a refrigerant gas as the working fluid, and oil is also entrained into the compressor together with the refrigerant in order to lubricate the moving parts and seal the gap between the parts. Clearance or gap. Preferably, an oil pump (not shown) is used to introduce the oil into the compressor, and a device (not shown) is generally provided to collect the oil and return the oil to the oil pump for refrigeration again. Pump the oil together with the agent. The lubricating oil can be any oil compatible with the refrigerant used as the working fluid in the compressor. The refrigerant can be any suitable refrigerant that is effective in a given temperature range of interest.

Generally speaking, the compressor arrangement of the present invention also includes an upper plate and a lower plate, which close the upper and lower parts of the compressor, thereby sealing the compression chamber 110 established together with the sealing piston 30. The distance between the two plates and the height of the main body of the configuration rolling member 10 must be accurate in order to properly seal and establish the compression chamber 110, but a certain clearance adjustment or compensation system can be implemented to act on the satellite(s) Component on. However, configuring other components of the compressor configuration of the present invention does not need to be done with precise tolerances as in the known prior art, which makes this configuration easier to manufacture and therefore less expensive. Generally speaking, at least one segment element is further arranged between the upper plate and/or the lower plate to allow tight sealing of the compression chamber 110 and at the same time allow the rolling member 10 to move. This configuration is made so that the rolling member 10 has low friction relative to the movement of the fixed body 40 and the plates. Preferably, the material of the configuration segment element is a low-friction material, generally Teflon ^® .

These low-friction materials generally allow long-term solutions in applications that require sliding motion of components but still have low maintenance requirements. The friction characteristic of a material is generally given by the coefficient of friction, which is given a value that shows that when an object moves across a surface made of such materials, it makes the difference between the object and the surface There is a force exerted by the surface in relative motion. Generally speaking, for Teflon, this coefficient of friction is included between 0.04 and 0.2. The low-friction material has a coefficient of friction of less than 0.4, more preferably less than 0.3, and even more preferably less than 0.2.

The object of the present invention is to integrate the drive motor structure into the configuration of a rotary vane compressor. The motor integration according to the present invention can be accomplished in a compressor configuration having a fixed axis (or a fixed main body 40 with the same axis X) and an external rotating part (in this case, an external rotating member 90). In a preferred embodiment of the present invention, the configuration of the compressor arrangement 100 includes satellite elements, which are installed in the rotating member 90, and the rolling member 10 is pushed on the fixed body 40, as discussed. The winding 211 is installed on an outer stator 210, and the magnet 221 is directly attached to the outer surface of the rotating member 90, directly facing these windings 211, and no metal element is arranged between the magnet and the winding. The distance between the magnet and the winding should be free and as small as possible, generally less than about 1mm; otherwise the efficiency will drop sharply and it will be impossible to make the rotor rotate.

When current circulates through the windings 211, an electromagnetic force or electromagnetic field is generated in the stator 210: these windings work as electromagnets and therefore have poles, the opposite poles of which are in the magnet 221 directly attached to the rotating member 90. The magnetic field generated between these isopoles is designed to orient and generate force to provide a torque in the rotating member 90 to rotate it.

It is obvious that in a traditional rotary compressor, this type of configuration for windings and magnets will not be feasible, because there is no attachable magnet and the rotor can directly face the winding (no metal elements are inserted) ) Of the external rotating element. The configuration of the present invention is particularly advantageous because it integrates the rotor of the compressor (the rotating part of the compressor configuration, the rotating member 90) and the rotor of the motor (that is, where the permanent magnet is located) into a single element, thereby Provide a small closed solution. In addition, the windings of the stator are arranged outside, and compared to the closed solution in which the windings are inside a closed chamber, the windings can be advantageously cooled. The enclosed chamber in the arrangement 100 of the present invention groups the main body 40, the rolling member 10, the rotating element 90, and the magnet 221 in its interior, as shown in, for example, FIG. 5. The stator 210 together with the winding 211 can therefore be arranged outside the enclosed room and can be easily cooled, as shown in, for example, either of FIG. 1 or FIG. 2.

The stator 210 in the configuration of the present invention generally includes a laminated core embedded in a resin, which is configured as an integral part of the motor housing (the stator 210 constitutes a vertical part of the motor housing). Laminated magnetic cores generally consist of a plurality of thin metal sheets, which are basically parallel to the flux lines, so that the core is equivalent to many individual magnetic circuits, and each magnetic circuit receives a small part of the magnetic flux, thus greatly limiting the majority The flow of vortex.

Generally, the configuration of the present invention proposes to use the rotating parts of the compressor to be used and the motor rotor. This allows the rotating part to be driven directly, which greatly reduces the number of parts and noise. The final structure of the compressor configuration is very stable and small, and can withstand a pressure of 20 bar, maintaining a seal against the refrigerant gas used. Moreover, the arrangement is extremely compact by using a bearing on which a rotating part is mounted. Also, since the stator is in direct contact with the outside air, heat dissipation from the stator is improved. The rigid structure of the magnetic circuit integrated in the compressor configuration thus contributes to the mechanical resistance of the motor housing.

Referring now to the attached drawings, FIG. 1 shows the configuration of a fixed body 40 surrounded by a rolling member 10 in an eccentric manner. The rolling member is rolled on the outer wall of the main body 40 through a rotating member 90 mounted on the bearing 300. The magnet 221 is directly attached to the outer wall of the rotating member 90 and faces the corresponding winding 211 in the stator 210. However, this figure does not depict the general laminated structure of the stator.

FIG. 2 shows the entire compressor configuration 100 seen from the outside as a complete small structure with a motor housing 230 on the outside, which shows that the stator 210 conceals the winding 211 inside. FIG. 3 shows the positions of these windings in the stator 210 and how they face the magnet 221 (floating view).

Figure 4 shows where the satellite components will be arranged in the compressor and mounted on the rotating member 90.

FIG. 5 shows a cross-sectional view of a compressor configuration according to a preferred embodiment of the present invention, which shows the magnet 221, the rotating member 90, the rolling member 10, and the fixed body 40 grouped inside the enclosed chamber. The stator 210 with the winding 211 is arranged outside the enclosed room.

Figure 6 shows the structure of a rotary vane compressor with a fluid inlet 130 and a fluid outlet 140 for fluid once the fluid has been compressed. It shows a sealed piston 30 that can be slid into a slot 31 so as to contact the inner wall of the rolling member 10 and establish a sealed compression chamber 110 in which fluid is compressed before the fluid is discharged through the outlet 140. Shown are two satellite elements 50 and 50", which push the rolling member 10 on the fixed body 40 to change the volume of the chamber 110. Here you can see how the inner wall of the rolling member 10 is in contact with the outer wall of the fixed body 40 This occurs at an intermediate angular position between the satellite elements 50 and 50" and the external contact of the rolling member 10.

Figures 7a, 7b, and 7c show a motor housing 230 with a stator 210 (Figure 7a); a rotating member 90 with a magnet 221 attached to the outside and a pair of satellite elements 50, 50' and another pair of satellite elements How to configure 50", 50"' in this member 90 according to the height so that the rolling member 10 is pushed and rolled (Figure 7b); the stator configuration 210 with windings 211, these windings will face the magnet 221 (Figure 7c) .

Figures 8a, 8b, 8c, and 8d show a motor housing 230 with a stator 210 (Figure 8a); a rotating member 90 with a magnet 221 attached to the outside and a pair of satellite elements 50, 50' and another How to configure the satellite elements 50", 50'" in the member 90 according to the height so that the rolling member 10 is pushed and rolled, and the magnets 221 are arranged between the satellite elements (Figure 8b); The rolling member 10 on the main body 30 and the sealed piston 30 contacting its inner wall (Figure 8c); the stator configuration 210 with windings 211, which will face the magnet 221 (Figure 8d).

Although the present invention has been described with reference to the preferred embodiments, a person with ordinary knowledge in the field can implement numerous modifications and changes without departing from the scope of the present invention defined by the scope of the appended application.

10‧‧‧Rotating member

40‧‧‧Fixed member

50‧‧‧Satellite Components

50'‧‧‧Satellite components

90‧‧‧Rotating member

100‧‧‧Rotary compressor configuration

210‧‧‧Stator

211‧‧‧Winding configuration

221‧‧‧Magnet

300‧‧‧Bearing

Claims (9)

A rotary compressor configuration (100), which includes a fixed member (40) and a rotating member (90). The fixed member (40) is centered on an axis (X), and the rotating member (90) surrounds the The fixed member (40) rotates; the fixed member (40) and the rotating member (90) are located inside a hermetically sealed internal volume in the compressor configuration (100); the compressor configuration (100) includes a A stator (210) of a winding arrangement (211), the winding arrangement (211) generates an electromagnetic force inside the stator (210), and the stator (210) is arranged outside the enclosed and sealed internal volume; the compression The machine configuration (100) further includes a plurality of magnets (221) directly attached to the rotating member (90) and facing the winding configuration (211) in the stator (210), so that the The rotating member (90) is entrained to rotate by a rotating electromagnetic field from the stator (210), and further includes a rolling member (10), the rolling member (10) relative to the fixed member (40) The eccentric configuration is such that a chamber is established between the rolling member (10) and the fixed member (40); the configuration (100) further includes at least one satellite element (50), and the at least one satellite element (50) is borrowed The rotating member (90) is entrained to rotate; the at least one satellite element (50) orbits at an offset axis (Y), and entrains and rotates the rolling member (10) and secures the fixed member ( 40) A contact with the rolling member (10), wherein the at least one satellite element (50) includes at least a pair of satellite elements (50, 50'), and the at least one pair of satellite elements (50, 50') depends on The height is arranged in the rotating member (90) so that the magnets (221) are positioned between the at least one pair of satellite elements (50, 50'). For example, the rotary compressor configuration (100) of claim 1, which further includes an upper plate and a lower plate, the upper plate and the lower plate are arranged to be closed in a tight manner to the fixing member (40) and At least one compression chamber (110) is established between the rolling members (10). For example, the rotary compressor configuration (100) of claim 1, wherein the rotating member (90) is configured as a cylinder, and the magnets (221) are directly attached to an outer diameter circumference of the rotating member (90) middle. Such as the rotary compressor configuration (100) of any one of claims 1 to 3, wherein the satellite components are mounted on the bearing (300). For example, the rotary compressor configuration (100) of any one of claims 1 to 3, wherein the stator (210) includes a laminated core embedded in a resin material, and the stator (210) is a motor housing ( 230) an integral part. For example, the rotary compressor configuration (100) of any one of claims 1 to 3, wherein the distance separating the winding configuration (211) and the magnets (221) is as small as possible, generally less than about 1 mm. For example, the rotary compressor configuration (100) of any one of claims 1 to 3, which further comprises at least one sealed piston (30), the sealed piston (30) can be used during the rotation of the rolling member (10) The fixed member (40) slides inside to establish at least one compression chamber (110). The volume of the at least one compression chamber (110) is reduced by the rotation of the rolling member (10), so that a compressible fluid flows through Compressed before being discharged. For example, the rotary compressor configuration (100) of claim 7, wherein lubricating oil is also provided with the compressible fluid, and the lubricating oil is compatible with the compressible fluid. A cooling/freezing system comprising the rotary compressor configuration (100) according to any one of claims 1 to 8.

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