JP6744062B2 - Compressor, cooling/heating type refrigerating apparatus including the same, cooling-only type refrigerating apparatus - Google Patents

Description

The present invention relates to the field of refrigeration, and more particularly to a compressor, a cooling/heating type refrigeration system including the same, and a cooling-only type refrigeration system.

At present, in the air conditioner, the heating capacity is significantly attenuated in the heating technology, especially in low outside air temperature, and the user's demand for heat quantity cannot be satisfied. In addition, with the implementation of air-conditioning APF energy efficiency, the lack of low-temperature heating capacity of air-conditioning becomes more and more prominent, and a solution is required.

In order to solve the problem, in recent years, much attention has been paid to applying the gas refrigerant injection method to a compressor and a refrigerating device, and in particular, the application to a two-cylinder rotary compressor is being studied.

The present invention aims to solve at least one technical problem in the prior art.

Therefore, the present invention provides a compressor in which the compressed gas indicated efficiency of the second cylinder is high.

The present invention further provides a cooling/heating type refrigeration system including the compressor described above.

The present invention further provides a cooling-only type refrigerating apparatus including the above-described compressor.

A compressor according to an exemplary embodiment of the present invention includes a housing provided with an exhaust pipe, a first intake pipe, and a second intake pipe, and a first cylinder provided in the housing. A first cylinder having a passage and a first intake passage communicating with the first intake pipe, an intake volume of V1, and a minimum flow area of the first intake passage of S1; A second cylinder provided in the housing, wherein a second exhaust passage and a second intake passage communicating with the second intake pipe are provided, the intake volume is V2, and the second intake passage is provided. A second cylinder having a minimum flow passage area of S2, the intake pressure of the second cylinder is higher than the intake pressure of the first cylinder, and the first cylinder and the second cylinder The cylinder satisfies the following relational expression: 1.2×V2/V1≦S2/S1.

In the compressor according to the embodiment of the present invention, the intake pressure loss of the second cylinder is reduced by setting 1.2×V2/V1≦S2/S1, and the indicated efficiency of the compressed gas in the second cylinder is high. This ensures that the compressor is energy efficient and is simple to manufacture, safe and reliable.

In some embodiments of the present invention, the first cylinder and the second cylinder further satisfy the following relational expression: 1.4×V2/V1≦A2/A1. However, A1 is the minimum flow area of the first exhaust passage, and A2 is the minimum flow area of the second exhaust passage.

Furthermore, the first cylinder and the second cylinder satisfy the following relational expression: A2/A1≦4×V2/V1.

Furthermore, the first cylinder and the second cylinder satisfy the following relational expression: S2/S1≦5×V2/V1.

In some embodiments of the present invention, a filter mesh is provided in the second intake passage.

The cooling/heating type refrigerating apparatus according to the embodiment of the present invention includes the compressor according to the above-described embodiment of the present invention, and a first valve opening, a second valve opening, a third valve opening, and a fourth valve opening. The first valve opening communicates with one of the second valve opening and the third valve opening, and the fourth valve opening connects the second valve opening and the third valve opening. A direction switching assembly that communicates with the other of the two, the first valve opening is connected to the exhaust pipe, and the fourth valve opening is connected to the first intake pipe; and a first end is the second switching assembly. An indoor heat exchanger connected to the valve opening of the, an outdoor heat exchanger having a first end connected to the third valve opening, a first interface, a second interface and a third interface. A first throttling element is connected in series between the first interface and a second end of the indoor heat exchanger, and the second interface and the second end of the outdoor heat exchanger are connected to each other. A second throttle element connected in series between the two, and a flash evaporator in which the third interface is connected to the second intake pipe.

The cooling and heating refrigeration system according to the embodiment of the present invention reduces the intake pressure loss of the second cylinder by providing the compressor according to the above-described embodiment of the present invention, and the compressed gas indicated efficiency of the second cylinder is reduced. Guaranteed to be high and the compressor to be energy efficient.

Further, the compressor further includes an accumulator, and the accumulator is provided with an inlet connected to the fourth valve port and an outlet connected to the first intake pipe.

Preferably, the direction switching assembly is a four way valve.

Optionally, the first throttle element is a capillary tube, an electronic expansion valve or a thermal expansion valve, and the second throttle element is a capillary tube, an electronic expansion valve or a thermal expansion valve.

A cooling-only refrigerating apparatus according to an embodiment of the present invention includes a compressor according to the above-described embodiment of the present invention, an indoor heat exchanger having a first end connected to a first intake pipe, and a first end. An outdoor heat exchanger connected to an exhaust pipe, a first interface, a second interface and a third interface are provided, and between the first interface and the second end of the indoor heat exchanger. A first throttling element is connected in series with, a second throttling element is connected in series between the second interface and a second end of the outdoor heat exchanger, and the third interface is A flash evaporator connected to the second intake pipe.

The cooling-only type refrigerating apparatus according to the embodiment of the present invention reduces the intake pressure loss of the second cylinder by providing the compressor according to the above-described embodiment of the present invention, and the compressed gas indicated efficiency of the second cylinder is reduced. To ensure that the compressor is energy efficient.

It is a schematic diagram of the compressor concerning some examples of the present invention. It is a schematic diagram of the compressor which concerns on some other Examples of this invention. It is a change relation graph between the flow area ratio of the intake passage of a 1st cylinder and a 2nd cylinder, and the compressed gas illustration efficiency of a 2nd cylinder. It is a change relation graph between the flow area ratio of the exhaust passage of a 1st cylinder and a 2nd cylinder, and the compressed gas illustration efficiency of a 2nd cylinder. It is a schematic diagram of the cooling/heating type refrigeration apparatus which concerns on the Example of this invention. FIG. 6 is a system cycle pressure-enthalpy diagram of the cooling/heating type refrigeration apparatus shown in FIG. 5. It is a schematic diagram of the refrigerating device only for cooling which concerns on the Example of this invention.

Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are illustrative and are used only for interpreting the invention and are not to be understood as limiting the invention.

In the description of the present invention, "center", "vertical direction", "horizontal direction", "length", "width", "thickness", "top", "bottom", "front", "rear", " "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axial", "Radial" ”, “circumferential direction” and the like indicate the azimuth or the positional relationship, which is used for conveniently or simply explaining the present invention based on the azimuth or the positional relationship shown in the drawings. Or, it should not be understood as a limitation on the present invention, as the element is in a particular orientation and is not intended to imply or imply that it is constructed and operated in a particular orientation.

Also, the terms "first" and "second" are merely for the purpose of description, and indicate or imply comparative importance or imply the number of technical features shown. Don't understand. Thus, "first", "second" limited features explicitly or implicitly include at least one of said features. In the description of the present invention, “plurality” means at least two, for example, or two, three, and the like, unless otherwise clearly and specifically limited.

In the description of the present invention, the meanings of the terms "attach", "connect to each other", "connect", "fix" should be broadly understood, unless explicitly defined and limited. For example, a fixed connection, a detachable connection, or an integrated connection is possible. It is possible to make mechanical connections, electrical connections, or even to communicate with each other. It is possible to make a direct connection, an indirect connection via an intermediate medium, a communication between the two components, or an interaction between the two components. .. Those skilled in the art can understand the specific meaning of the above terms in the present invention depending on the specific case.

Hereinafter, the compressor 100 according to the embodiment of the present invention will be described in detail with reference to FIGS. 1 to 4. The refrigerant used inside the compressor 100 may be any one of HCFC, HFC, HC, HFOs, or a mixture of one or more refrigerants.

As shown in FIGS. 1 and 2, a compressor 100 according to an embodiment of the present invention includes a housing 1, a first cylinder 2 and a second cylinder 3, and the housing 1 includes an exhaust pipe 10 and a first cylinder 3. The intake pipe 11 and the second intake pipe 12 are provided. The first cylinder 2 is provided in the housing 1, and the first cylinder 2 is provided with a first exhaust passage 20 and a first intake passage 21 communicating with the first intake pipe 11. The intake volume of the cylinder 2 is V1, and the minimum flow area of the first intake passage 21 is S1. That is, the first cylinder 2 is provided with the first exhaust passage 20 and the first intake passage 21, and the first intake passage 21 communicates with the first intake pipe 11 to provide the first exhaust passage. The passage 20 communicates with the exhaust pipe 10.

The second cylinder 3 is provided in the housing 1, and the second cylinder 3 is provided with a second exhaust passage 30 and a second intake passage 31 communicating with the second intake pipe 12, that is, A second exhaust passage 30 and a second intake passage 31 are provided in the second cylinder 3, and the second intake passage 31 communicates with the second intake pipe 12 to provide a second exhaust passage. 30 communicates with the exhaust pipe 10. The intake volume of the second cylinder 3 is V2, and the minimum flow area of the second intake passage 31 is S2.

The compressor 100 includes elements such as a motor 4, a crank 5, a first piston 6 and a second piston 7. The motor 4 is provided inside the housing 1 and a rotor of the motor 4 is placed on the crank 5. By fixing, the driving crank 5 is rotated, and by externally fitting the first piston 6 and the second piston 7 onto the crank 5, respectively, the driving crank 5 is driven to rotate and the first piston 6 and the second piston 7 are rotated. 6 is eccentrically rotatable in the cylinder chamber of the first cylinder 2, and the second piston 7 is eccentrically rotatable in the cylinder chamber of the second cylinder 3 in the first exhaust passage 20. An exhaust valve is provided in each of the second exhaust passage 30 and the second exhaust passage 30, and the principle that the compressor 100 compresses the refrigerant is a conventional technique and will not be described in detail here.

Since the intake pressure of the second cylinder 3 is higher than the intake pressure of the first cylinder 2, the intake density of the second cylinder 3 is also higher than that of the first cylinder 2, and as shown in FIG. The cylinder 2 and the second cylinder 3 satisfy the following relational expression: 1.2×V2/V1≦S2/S1.

In the compressor 100 according to the embodiment of the present invention, the intake pressure loss of the second cylinder 3 is reduced by setting 1.2×V2/V1≦S2/S1, and the compressed gas of the second cylinder 3 is illustrated. It ensures high efficiency, which makes the compressor 100 energy efficient, simple to manufacture, safe and reliable.

Although the exhaust pressures of the first cylinder 2 and the second cylinder 3 are the same, the first cylinder 2 and the second cylinder 3 differ in the opening time of the exhaust valve due to the difference in the intake pressure. Therefore, as shown in FIG. 4, in some embodiments of the present invention, the first cylinder 2 and the second cylinder 3 further have the following relational expression: 1.4×V2/V1≦A2/ A1 is satisfied. However, A1 is the minimum flow area of the first exhaust passage 20, and A2 is the minimum flow area of the second exhaust passage 30. In this way, it is possible to further ensure that the compressed gas illustrated efficiency of the second cylinder 3 is high, and thus the compressor 100 is excellent in energy efficiency.

When the minimum flow area A2 of the second exhaust passage 30 of the second cylinder 3 is relatively large, the clearance volume of the second cylinder 3 becomes slightly large, and the compression of the second cylinder 3 is illustrated. The efficiency is reduced, and therefore, in a further embodiment of the invention, the first cylinder 2 and the second cylinder 3 further satisfy the following relational expression: A2/A1≦4×V2/V1. In this way, it is possible to further ensure that the compressed gas illustrated efficiency of the second cylinder 3 is high, and thus the compressor 100 is excellent in energy efficiency.

If the minimum flow area S2 of the second intake passage 31 of the second cylinder 3 is relatively large, the closing of the intake air of the second intake passage 31 is delayed, and the indicated compression efficiency of the second cylinder 3 is reduced. Because of this, according to some embodiments of the present invention, the first cylinder 2 and the second cylinder 3 further satisfy the following relational expression: S2/S1≦5×V2/V1. In this way, it is possible to further ensure that the compressed gas illustrated efficiency of the second cylinder 3 is high, and thus the compressor 100 is excellent in energy efficiency.

As shown in FIG. 2, in some embodiments of the present invention, a filter net 9 is provided in the second intake passage 31. This can prevent impurities from directly entering the second cylinder 3 and improve the reliability of the compressor 100. Specifically, the filter net 9 may be fixed to the second intake pipe 12 or may be fixed to the inner peripheral wall of the second intake passage 31.

Hereinafter, a cooling/heating type refrigerating apparatus 1000 according to an embodiment of the present invention will be described in detail with reference to FIGS. The cooling/heating type refrigeration system 1000 includes a cooling mode and a heating mode.

As shown in FIG. 5, the cooling/heating type refrigerating apparatus 1000 according to the embodiment of the present invention includes a compressor 100, a direction switching assembly 200, an indoor heat exchanger 300, an outdoor heat exchanger 400 according to the above-described embodiment of the present invention. A flash evaporator 500 is provided. However, the direction switching assembly 200 includes a first valve opening a, a second valve opening b, a third valve opening c, and a fourth valve opening d, and the first valve opening a is the second valve opening a. The first valve opening b communicates with one of the third valve opening c and the fourth valve opening d communicates with the other of the second valve opening b and the third valve opening c. The valve opening a of is connected to the exhaust pipe 10, and the fourth valve opening d is connected to the first intake pipe 11. The first end of the indoor heat exchanger 300 is connected to the second valve port b, and the first end of the outdoor heat exchanger 400 is connected to the third valve port c. In the cooling/heating type refrigerating apparatus 1000, the first valve port a communicates with the third valve port c and the second valve port b communicates with the fourth valve port d during cooling, thereby cooling/heating type refrigeration. In the device 1000, at the time of heating, the first valve opening a communicates with the second valve opening b and the third valve opening c communicates with the fourth valve opening d.

Preferably, the direction switching assembly 200 is a four way valve. Of course, the direction switching assembly 200 may further be formed in another structure, and includes the first valve opening a, the second valve opening b, the third valve opening c, and the fourth valve opening d. It suffices if switching can be realized.

The flash evaporator 500 is provided with a first interface e, a second interface f, and a third interface g. The flash evaporator 500 has a gas-liquid separation action, A first throttling element 600 is connected in series with the second end of the heat exchanger 300, and a first throttling element 600 is provided between the second interface f and the second end of the outdoor heat exchanger 400. Two throttle elements 700 are connected in series, and the third interface g is connected to the second intake pipe 12. However, both the first diaphragm element 600 and the second diaphragm element 700 have the function of reducing the diaphragm. Optionally, the first throttling element 600 is a capillary tube, an electronic expansion valve or a thermal expansion valve, and the second throttling element 700 is a capillary tube, an electronic expansion valve or a thermal expansion valve.

In the cooling/heating type refrigeration system 1000, during cooling, the refrigerant discharged from the first cylinder 2 and the second cylinder 3 flows to the outdoor heat exchanger 400 via the exhaust pipe 10 of the compressor 100 and the direction switching assembly 200. The refrigerant that has condensed and radiated heat and discharged from the outdoor heat exchanger 400 is reduced in pressure by the second throttle element 700 and then discharged into the flash evaporator 500 from the second interface f to perform gas-liquid separation. The separated liquid refrigerant flows to the first throttling element 600 by the first interface e to perform throttling and pressure reduction, and the refrigerant discharged from the first throttling element 600 is discharged to the indoor heat exchanger 300, The refrigerant that evaporates and absorbs heat and is discharged from the indoor heat exchanger 300 flows into the first cylinder 2 via the direction switching assembly 200 and the first intake pipe 11, and is compressed. The separated refrigerant gas is discharged to the second cylinder 3 via the third interface g and the second intake pipe 12 and compressed. As can be seen from this, the intake pressure of the first intake pipe 11 is lower than the intake pressure of the second intake pipe 12. During cooling, the outdoor heat exchanger 400 is a condenser and the indoor heat exchanger 300 is an evaporator.

In the cooling/heating type refrigeration system 1000, the refrigerant discharged from the first cylinder 2 and the second cylinder 3 during heating flows to the indoor heat exchanger 300 via the exhaust pipe 10 of the compressor 100 and the direction switching assembly 200. The refrigerant discharged from the indoor heat exchanger 300 by condensing and radiating heat is throttled down by the first throttling element 600, and then discharged into the flash evaporator 500 through the first interface e, and gas and liquid are discharged. The separated liquid refrigerant flows to the second throttling element 700 via the second interface f to perform throttling and pressure reduction, and the refrigerant discharged from the second throttling element 700 is the outdoor heat exchanger. The refrigerant discharged to the heat exchanger 400, evaporating and absorbing heat, and discharged from the heat exchanger 400 flows into the first cylinder 2 via the direction switching assembly 200 and the first intake pipe 11, and is compressed. The separated refrigerant gas is discharged to the second cylinder 3 via the third interface g and the second intake pipe 12 and compressed. As can be seen from this, the intake pressure of the first intake pipe 11 is lower than the intake pressure of the second intake pipe 12. During heating, the indoor heat exchanger 300 is a condenser and the outdoor heat exchanger 400 is an evaporator.

As shown in FIG. 6, in the first cylinder 2, the working gas is isentropically compressed from the intake state point 1 to the exhaust state point 2. The second cylinder 3 is isentropically compressed from the saturated vapor state point 3 to the exhaust state point 3'. The hot gases at points 2 and 3′ are mixed in the housing 1, then enter the condenser, undergo heat exchange by the condenser, and then are condensed to the state point 5. The refrigerant at state point 5 is supercooled to state point 6. The refrigerant at the state point 6 is throttled to the gas-liquid mixing state point 7 by the throttle element. The refrigerant at the gas-liquid mixing state point 7 undergoes gas-liquid separation after passing through the flash evaporator 500, and the separated saturated vapor state point 3 enters the second cylinder 3. The saturated liquid state point 8 separated by the flash evaporator 500 is narrowed down to an evaporation pressure state point 9 by a throttling element. After passing through the evaporator, the two-phase state point 9 forms the low-temperature low-pressure superheated gas state point 1 and enters the first cylinder 2.

The cooling/heating type refrigeration system 1000 according to the embodiment of the present invention reduces the intake pressure loss of the second cylinder 3 by providing the compressor 100 according to the above-described embodiment of the present invention, and compresses the second cylinder 3. It is guaranteed that the indicated gas efficiency is high, which makes the compressor 100 energy efficient.

In some embodiments of the invention, as shown in FIGS. 1, 2 and 5, the compressor 100 further includes an accumulator 8, the accumulator 8 being provided with an inlet m and an outlet n. The inlet m is connected to the fourth valve port d, and the outlet n is connected to the first intake pipe 11. However, the accumulator 8 has the function of gas-liquid separation, discharges the refrigerant discharged from the fourth valve port d into the accumulator 8 and performs gas-liquid separation, and the separated refrigerant gas is the first intake gas. Since the first cylinder 2 is sucked into the first cylinder 2 via the pipe 11 and is compressed, it is possible to prevent the occurrence of a slacking phenomenon in the first cylinder 2, and further, impurities are contained in the first cylinder 2. It is possible to avoid entering the compressor and improve the reliability of the compressor 100.

Hereinafter, the cooling type refrigerating apparatus 2000 according to the embodiment of the present invention will be described in detail with reference to FIGS. 1 to 4 and 7.

As shown in FIG. 7, a cooling-only type refrigerating apparatus 2000 according to an embodiment of the present invention includes a compressor 100, an indoor heat exchanger 300, an outdoor heat exchanger 400, and a flash evaporator described in the above-described embodiment of the present invention. With 500. The first end of the indoor heat exchanger 300 is connected to the first intake pipe 11, and the first end of the outdoor heat exchanger 400 is connected to the exhaust pipe 10.

The flash evaporator 500 is provided with a first interface e, a second interface f, and a third interface g. The flash evaporator 500 exerts a gas-liquid separation action, and the first interface e and the indoor heat. A first throttling element 600 is connected in series between the second end of the exchanger 300 and a second end between the second interface f and the second end of the outdoor heat exchanger 400. The throttling element 700 is connected in series, and the third interface g is connected to the second intake pipe 12. However, both the first diaphragm element 600 and the second diaphragm element 700 have the function of reducing the diaphragm. Optionally, the first throttling element 600 is a capillary tube, an electronic expansion valve or a thermal expansion valve, and the second throttling element 700 is a capillary tube, an electronic expansion valve or a thermal expansion valve.

In the cooling-only refrigeration apparatus 2000, during cooling, the refrigerant discharged from the first cylinder 2 and the second cylinder 3 performs condensation heat dissipation by the exhaust pipe 10 of the compressor 100, the flow direction outdoor heat exchanger 400, and the outdoor heat exchange. The refrigerant discharged from the evaporator 400 is throttled down by the second throttling element 700 and then discharged into the flash evaporator 500 via the second interface f to perform gas-liquid separation, and the separated liquid refrigerant. Flows to the first throttling element 600 via the first interface e, performs throttling and pressure reduction, and the refrigerant discharged from the first throttling element 600 is discharged to the indoor heat exchanger 300 to perform evaporative heat absorption. The refrigerant discharged from the indoor heat exchanger 300 flows into the first cylinder 2 via the first intake pipe 11 and is compressed. The separated refrigerant gas is discharged to the second cylinder 3 via the second intake pipe 12 and compressed. As can be seen from this, the intake pressure of the first intake pipe 11 is lower than the intake pressure of the second intake pipe 12.

The cooling-only type refrigerating apparatus 2000 according to the embodiment of the present invention reduces the intake pressure loss of the second cylinder 3 by providing the compressor 100 according to the above-described embodiment of the present invention. It ensures that the compressed gas indicated efficiency is high, which makes the compressor 100 energy efficient.

In the present invention, unless explicitly defined and limited, the fact that the first feature is “above” or “below” the second feature includes direct contact between the first feature and the second feature. However, it may include contacting the first and second features not directly but through another feature between them. Further, the fact that the first feature is “above”, “above” or “upper face” of the second feature includes that the first feature is directly above and obliquely above the second feature, or is simply the first feature. Only the horizontal height of one feature is higher than the second feature. The fact that the first feature is "below", "below" or "the lower face" of the second feature includes that the first feature is directly below and diagonally below the second feature, or is simply that of the first feature. It only represents that the horizontal height is lower than the second feature.

In describing the present invention, reference is made to terms such as "one embodiment," "some embodiments," "exemplary embodiments," "specific embodiments," or "some embodiments." The description means that the specific features, configurations, materials or characteristics described in connection with the embodiments or embodiments are included in at least one embodiment or embodiment of the present invention. In the present specification, example descriptions with respect to the above terms do not necessarily indicate the same embodiment or embodiments. Also, the particular features, configurations, materials or characteristics described may be combined in any suitable manner in one or more embodiments or embodiments. Furthermore, if not inconsistent with one another, one skilled in the art can combine and combine different embodiments or examples, and different embodiments or exemplary features described herein.

Although the embodiments of the present invention have been shown and described above, the above embodiments are illustrative and should not be understood to limit the present invention. A person of ordinary skill in the art can make changes, modifications, replacements, and variations to the above-described embodiments within the scope of the present invention.

Air Conditioning/Refrigerator 1000
Cooling type freezer 2000
Compressor 100
Housing 1
Exhaust pipe 10
First intake pipe 11
Second intake pipe 12
First cylinder 2
First exhaust passage 20
First intake passage 21
Second cylinder 3
Second exhaust passage 30
Second intake passage 31
Motor 4
Crank 5
First piston 6
Second piston 7
Filter net 9
Accumulator 8
Entrance m
Exit n
Direction switching assembly 200
First valve opening a
2nd valve b
Third valve c
Fourth valve opening d
Indoor heat exchanger 300
Outdoor heat exchanger 400
Flash evaporator 500
First interface e
Second interface f
Third interface g
First diaphragm element 600
Seventh diaphragm element 700

Claims (8)

A housing provided with an exhaust pipe, a first intake pipe and a second intake pipe;
A first cylinder provided in the housing, wherein a first exhaust passage and a first intake passage communicating with the first intake pipe are provided, an intake volume is V1, and the first intake passage is provided. A first cylinder whose minimum flow area of the intake passage is S1;
A second cylinder provided in the housing, wherein a second exhaust passage and a second intake passage communicating with the second intake pipe are provided, and an intake volume is V2. A second cylinder whose minimum passage area of the intake passage is S2;
Including,
The intake pressure of the second cylinder is higher than the intake pressure of the first cylinder, and the first cylinder and the second cylinder have the following relational expression:
1.2×V2/V1≦S2/S1
Meet the,
The first cylinder and the second cylinder further have the following relational expression:
1.4×V2/V1≦A2/A1≦4×V2/V1
The filling,
However, the compressor is characterized in that A1 is a minimum flow area of the first exhaust passage and A2 is a minimum flow area of the second exhaust passage . The first cylinder and the second cylinder further have the following relational expression:
S2/S1≦5×V2/V1
Meet,
The compressor according to claim 1, wherein: A filter net is provided in the second intake passage.
The compressor according to claim 1 or 2 , characterized in that. A compressor according to any one of claims 1 to 5 ,
A first valve opening, a second valve opening, a third valve opening, and a fourth valve opening, wherein the first valve opening is one of the second valve opening and the third valve opening. The fourth valve port communicates with one side, the fourth valve port communicates with the other of the second valve port and the third valve port, and the first valve port is connected to the exhaust pipe. A directional changer assembly having four valve ports connected to the first intake pipe;
An indoor heat exchanger having a first end connected to the second valve opening;
An outdoor heat exchanger having a first end connected to the third valve opening;
A first interface, a second interface and a third interface are provided, and a first throttling element is connected in series between the first interface and a second end of the indoor heat exchanger, A flash evaporator in which a second throttling element is connected in series between a second interface and the second end of the outdoor heat exchanger, and the third interface is connected to the second intake pipe; ,
including,
A cooling/heating type refrigerating apparatus characterized by the above. The compressor further includes an accumulator, and the accumulator is provided with an inlet connected to the fourth valve port and an outlet connected to the first intake pipe,
The cooling/heating type refrigerating apparatus according to claim 4 , wherein. The direction switching assembly is a four-way valve,
The cooling/heating type refrigerating apparatus according to claim 4 or 5 , characterized in that. The first throttle element is a capillary tube, an electronic expansion valve or a thermal expansion valve, and the second throttle element is a capillary tube, an electronic expansion valve or a thermal expansion valve,
Air-type refrigeration system according to any one of claims 4-6, characterized in that. A compressor according to any one of claims 1 to 5 ,
An indoor heat exchanger having a first end connected to the first intake pipe;
An outdoor heat exchanger having a first end connected to an exhaust pipe,
A first interface, a second interface and a third interface are provided, and a first throttling element is connected in series between the first interface and a second end of the indoor heat exchanger, A flash evaporator in which a second throttling element is connected in series between a second interface and the second end of the outdoor heat exchanger, and the third interface is connected to the second intake pipe; ,
including,
A refrigeration device exclusively for cooling, which is characterized in that

Images