Refrigerating system and air conditioner

Abstract

According to the refrigerating system, a first exhaust port is communicated with a second air suction port, and a first channel and a second channel drive a sliding piece to move so that one of separation and conduction of a first high-pressure cavity and a first low-pressure cavity can be achieved; the first valve port is communicated with the exhaust port, the second valve port is communicated with the other end of the second channel, the third valve port is communicated with the first air suction port and the other end of the first channel, and the first valve port and the third valve port are selectively communicated with the second valve port and the fourth valve port; the indoor heat exchanger communicates with the second valve port and the outdoor heat exchanger. The outdoor heat exchanger communicates with the fourth valve port. The elastic piece drives the sliding piece to move so that the first high-pressure cavity and the first low-pressure cavity can be communicated or separated. According to the refrigerating system, the volume of the compressor can be changed, the capacity and energy efficiency are improved, more energy is saved, efficient operation can be achieved, and the higher-load working condition is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air processing equipment, and more specifically, to a refrigeration system and an air conditioner. Background Art

[0002] In the related art, the compressor realizes two-stage compression through the first compression chamber and the second compression chamber, which can meet the use requirements when the temperature difference between indoor temperature and outdoor temperature is large. However, when the temperature difference between indoor temperature and outdoor temperature is small, the refrigeration system operates at low load, and the energy efficiency is low, which cannot meet the required energy-saving requirements. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a refrigeration system, which can realize the conversion of the compressor volume, improve the energy efficiency, ensure more energy saving, and can operate efficiently and achieve higher load conditions.

[0004] Another object of the present invention is to provide an air conditioner with the above refrigeration system.

[0005] According to the refrigeration system of the embodiment of the utility model, it includes: a compressor, the compressor includes a shell and a compression mechanism, the shell has an exhaust port, the compression mechanism is arranged in the shell and has a first compression chamber and a second compression chamber, the first compression chamber has a first suction port and a first exhaust port, the second compression chamber has a second suction port and a second exhaust port, the first exhaust port and the second suction port are connected, the first compression chamber is provided with a sliding vane for dividing the first compression chamber into a first high-pressure chamber and a first low-pressure chamber, the compression mechanism is provided with a first channel and a second channel, one end of the first channel and one end of the second channel are respectively located at two ends of the sliding vane, for driving the sliding vane to move so that the first high-pressure chamber and the first low-pressure chamber are separated and connected; a reversing component, the reversing component The component has a first valve port, a second valve port, a third valve port and a fourth valve port, the first valve port is connected to the exhaust port, the second valve port is connected to the other end of the second channel, the third valve port is connected to the first intake port and the other end of the first channel, the first valve port is connected to one of the second valve port and the fourth valve port, and the third valve port is connected to the other of the second valve port and the fourth valve port; an indoor heat exchanger and an outdoor heat exchanger, one end of the indoor heat exchanger is connected to the second valve port, and the other end is connected to one end of the outdoor heat exchanger, and the other end of the outdoor heat exchanger is connected to the fourth valve port; an elastic member, the elastic member is provided at one end of the sliding vane, and is used to drive the sliding vane to move so that the first high-pressure chamber and the first low-pressure chamber can achieve the other of conduction and isolation.

[0006] According to the refrigeration system of the embodiment of the utility model, a sliding vane for dividing the first compression chamber into a first high-pressure chamber and a first low-pressure chamber is provided in the first compression chamber of the compression mechanism, one end of the first channel and one end of the second channel are respectively located at two ends of the sliding vane, the third valve port is connected with the first air intake port and the other end of the first channel, the second valve port is connected with the other end of the second channel, the first channel and the second channel are used to drive the sliding vane to move so that the first high-pressure chamber and the first low-pressure chamber can achieve one of separation and conduction, the elastic member is provided at one end of the sliding vane, and the elastic member is used to drive the sliding vane to move so that the first high-pressure chamber and the first low-pressure chamber can achieve the other of conduction and separation, the volume of the compressor can be changed, and the capacity output of the compressor can be reduced under low load when the speed of the compressor remains unchanged, the operating efficiency of the refrigeration system under low load is improved, the refrigeration system is more energy-saving, and the overall capacity energy efficiency of the refrigeration system is improved, and the first exhaust port and the second air intake port are connected, so that the first compression chamber and the second compression chamber are connected in series, and the refrigerant can be compressed twice, which effectively improves the compression efficiency of the compressor, ensures the efficient operation of the refrigeration system, and can achieve higher load conditions.

[0007] In addition, the refrigeration system according to the above embodiment of the utility model may also have the following additional technical features:

[0008] According to the refrigeration system of some embodiments of the present invention, the refrigeration system further includes: a mixing chamber, and the first exhaust port and the second intake port are connected through the mixing chamber.

[0009] According to some embodiments of the utility model, the refrigeration system also includes: a second connecting branch, one end of the second connecting branch is connected between the indoor heat exchanger and the outdoor heat exchanger, the other end of the second connecting branch is connected to the mixing chamber, and a first expansion valve is provided on the second connecting branch.

[0010] According to some embodiments of the utility model, the refrigeration system also includes: a heat exchanger, the heat exchanger including a first heat exchange channel and a second heat exchange channel, the first heat exchange channel is connected in series on the flow path between the indoor heat exchanger and the outdoor heat exchanger, the second heat exchange channel is connected in series on the second connecting branch, and the first expansion valve is located on the side of the second heat exchange channel away from the mixing chamber.

[0011] According to some embodiments of the present invention, a second expansion valve is provided on the flow path between the indoor heat exchanger and the outdoor heat exchanger, and the second expansion valve is located between the indoor heat exchanger and the second connecting branch; and / or a third expansion valve is provided on the flow path between the indoor heat exchanger and the outdoor heat exchanger, and the third expansion valve is located between the outdoor heat exchanger and the first heat exchange channel.

[0012] According to some embodiments of the present invention, the refrigeration system further includes: a first communicating branch, one end of which is communicated with the third valve port, and the other end of which is communicated with the mixing chamber.

[0013] According to some embodiments of the present invention, a one-way valve is provided on the first connecting branch, and the one-way valve is used to control the refrigerant to flow only from the third valve port to the mixing chamber.

[0014] According to some embodiments of the present invention, the mixing chamber is located outside the compressor.

[0015] According to some embodiments of the present utility model, the refrigeration system further includes: a gas-liquid separator, and the gas-liquid separator is provided between the third valve port and the first air intake port.

[0016] According to some embodiments of the present utility model, a top plug is provided between the sliding sheet and the elastic member.

[0017] The air conditioner according to the embodiment of the utility model includes the refrigeration system according to the embodiment of the utility model.

[0018] According to the air conditioner of the embodiment of the utility model, a sliding vane is provided in the first compression chamber of the compression mechanism for dividing the first compression chamber into a first high-pressure chamber and a first low-pressure chamber, one end of the first channel and one end of the second channel are respectively located at two ends of the sliding vane, the third valve port is communicated with the first air intake port and the other end of the first channel, the second valve port is communicated with the other end of the second channel, the first channel and the second channel are used to drive the sliding vane to move so that the first high-pressure chamber and the first low-pressure chamber can achieve one of separation and conduction, the elastic member is provided at one end of the sliding vane, and the elastic member is used to drive the sliding vane to move so that the first high-pressure chamber and the first low-pressure chamber can achieve the other of conduction and separation, so that the volume of the compressor can be changed, and the capacity output of the compressor can be reduced under low load when the speed of the compressor remains unchanged, so as to improve the operating efficiency of the refrigeration system under low load, make the refrigeration system more energy-saving, and improve the overall capacity and energy efficiency of the refrigeration system, and the first exhaust port and the second air intake port are communicated, so that the first compression chamber and the second compression chamber are connected in series, and the refrigerant can be compressed twice, so as to effectively improve the compression efficiency of the compressor, ensure the efficient operation of the refrigeration system, and achieve higher load conditions.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a structural schematic diagram of a refrigeration system according to an embodiment of the utility model, wherein the first valve port is connected to the second valve port, and the third valve port is connected to the fourth valve port;

[0022] Figure 2 is a structural schematic diagram of a refrigeration system according to an embodiment of the utility model, wherein the first valve port is communicated with the fourth valve port, and the third valve port is communicated with the second valve port;

[0023] Figure 3 It is a partial structural schematic diagram of a refrigeration system according to an embodiment of the utility model;

[0024] Figure 4 is a schematic structural diagram of a sliding vane of a refrigeration system according to an embodiment of the utility model;

[0025] Figure 5 is a schematic structural diagram of a top plug of a refrigeration system according to an embodiment of the utility model;

[0026] Figure 6 is a schematic structural diagram of an elastic member of a refrigeration system according to an embodiment of the utility model;

[0027] Figure 7 It is a control diagram of a reversing component and a first expansion valve of a refrigeration system according to an embodiment of the utility model.

[0028] Reference numerals:

[0029] 100. Refrigeration system;

[0030] 10. compressor; 11. housing; 12. compression mechanism; 111. exhaust port; 121. first channel; 122. second channel;

[0031] 21, first compression chamber; 22, second compression chamber; 211, first air intake port; 212, first air exhaust port; 221, second air intake port;

[0032] 31. Sliding piece; 32. Elastic member; 33. Top plug;

[0033] 40, reversing assembly; 41, first valve port; 42, second valve port; 43, third valve port; 44, fourth valve port;

[0034] 51. Indoor heat exchanger; 52. Outdoor heat exchanger; 53. Heat exchanger; 531. First heat exchange channel; 532. Second heat exchange channel;

[0035] 61. first connecting branch; 62. second connecting branch; 611. one-way valve;

[0036] 70. Mixing chamber;

[0037] 81, first expansion valve; 82, second expansion valve; 83, third expansion valve;

[0038] 90. Gas-liquid separator. DETAILED DESCRIPTION

[0039] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] In the description of the present invention, "first feature" and "second feature" may include one or more such features, "plurality" means two or more, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them, the first feature "above", "above" and "above" the second feature may include the first feature being directly above and diagonally above the second feature, or may simply mean that the first feature is at a higher level than the second feature.

[0042] A refrigeration system 100 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0043] Reference Figure 1-Figure 6 As shown, the refrigeration system 100 according to the embodiment of the present invention may include: a compressor 10 , a reversing assembly 40 , an indoor heat exchanger 51 and an outdoor heat exchanger 52 .

[0044] Specifically, the compressor 10 includes a shell 11 and a compression mechanism 12, the shell 11 has an exhaust port 111, the compression mechanism 12 is arranged in the shell 11, and the compression mechanism 12 has a first compression chamber 21 and a second compression chamber 22, the first compression chamber 21 has a first air intake port 211 and a first exhaust port 212, the refrigerant can enter the first compression chamber 21 from the first air intake port 211, and the refrigerant compressed in the first compression chamber 21 flows out of the first compression chamber 21 from the first exhaust port 212, the second compression chamber 22 has a second air intake port 221 and a second exhaust port, the second exhaust port can be connected to the internal space of the shell 11, so that the second exhaust port is connected to the exhaust port 111, the refrigerant can enter the second compression chamber 22 from the second air intake port 221, and the refrigerant compressed in the second compression chamber 22 can flow out of the compressor 10 from the second exhaust port and the exhaust port 111, so as to realize the compression demand of the compressor 10 for the refrigerant. For example, the compressor 10 can be a two-stage compressor.

[0045] like Figure 1 and Figure 2 As shown, the reversing assembly 40 has a first valve port 41, a second valve port 42, a third valve port 43 and a fourth valve port 44. The first valve port 41 is connected to the exhaust port 111, the third valve port 43 is connected to the first air intake port 211, and the first valve port 41 is connected to one of the second valve port 42 and the fourth valve port 44, that is, the first valve port 41 can be connected to the second valve port 42, or the first valve port 41 can be connected to the fourth valve port 44, and the third valve port 43 is connected to the other of the second valve port 42 and the fourth valve port 44, that is, the third valve port 43 can be connected to the second valve port 42, or the third valve port 43 can be connected to the fourth valve port 44. One end of the indoor heat exchanger 51 is connected to the second valve port 42, the other end of the indoor heat exchanger 51 is connected to one end of the outdoor heat exchanger 52, and the other end of the outdoor heat exchanger 52 is connected to the fourth valve port 44, so that the indoor heat exchanger 51, the outdoor heat exchanger 52, the reversing assembly 40 and the compressor 10 can be connected, meeting the required connection requirements. For example, the reversing assembly 40 may be a four-way reversing valve.

[0046] Therefore, by controlling the reversing component 40, the refrigerant compressed by the compressor 10 can flow through the indoor heat exchanger 51 and the outdoor heat exchanger 52, thereby meeting the user's usage requirements, such as realizing the cooling function and heating function of the refrigeration system 100, and the energy efficiency of the refrigeration system 100 under load can be improved through the first compression chamber 21 and the second compression chamber 22, so that the refrigeration system 100 can operate efficiently.

[0047] The inventor of the present application has found that by implementing two-stage compression of the compressor 10 through the first compression chamber 21 and the second compression chamber 22, when the temperature difference between the indoor temperature and the outdoor temperature is large, the refrigeration system 100 operates at full load and can have good energy efficiency. However, when the temperature difference between the indoor temperature and the outdoor temperature is small, the refrigeration system 100 operates at low load, and the energy efficiency is low, which cannot meet the required energy saving requirements. For example, when the refrigeration system 100 is in heating operation, it can have good energy efficiency, and when the refrigeration system 100 is in cooling operation, the energy efficiency is low.

[0048] Therefore, in the present utility model, if Figure 1-Figure 4 As shown, a sliding plate 31 is provided in the first compression chamber 21, and the sliding plate 31 can divide the first compression chamber 21 into a first high-pressure chamber and a first low-pressure chamber. A first channel 121 and a second channel 122 are provided on the compression mechanism 12, and one end of the first channel 121 and one end of the second channel 122 are respectively located on the sliding plate 31 (for example Figure 3 The third valve port 43 is connected to the first air intake port 211 and the other end of the first channel 121, and the second valve port 42 is connected to the other end of the second channel 122.

[0049] Therefore, by controlling the pressure in the first channel 121 and the second channel 122, the first channel 121 and the second channel 122 can drive the slide 31 to move, so that the first high-pressure chamber and the first low-pressure chamber can achieve one of isolation and conduction, that is, when the first high-pressure chamber and the first low-pressure chamber are separated, the first compression chamber 21 can work normally to achieve bipolar compression of the compressor 10, and the first compression chamber 21 and the second compression chamber 22 work at the same time to meet the use requirements when the temperature difference between indoor temperature and outdoor temperature is large; when the first high-pressure chamber and the first low-pressure chamber are connected, the first compression chamber 21 does not work, and only the second compression chamber 22 works, so that the flow rate of the refrigerant is small, which meets the energy-saving requirements and realizes the use requirements when the temperature difference between indoor temperature and outdoor temperature is small, thereby realizing different use requirements of the refrigeration system 100.

[0050] Through the volume transformation of the compressor 10, the refrigeration system 100 can have good capacity and energy efficiency when running at full load. At the same time, when the speed of the compressor 10 remains unchanged, the capacity output of the compressor 10 can be reduced under low load, thereby achieving the purpose of capacity change, improving the operating efficiency of the refrigeration system 100 under low load, making the refrigeration system 100 more energy-efficient, and suitable for heating ultra-low temperature conditions, normal temperature conditions or high temperature conditions, etc., thereby improving the overall capacity and energy efficiency of the refrigeration system 100.

[0051] In addition, if Figure 1-Figure 3 , Figure 6As shown, the refrigeration system 100 further includes an elastic member 32, which is disposed at one end of the slide 31, and the elastic member 32 can drive the slide 31 to move, so that the first high-pressure chamber and the first low-pressure chamber can achieve the other of conduction and separation. Thus, when there is a pressure difference between the first channel 121 and the second channel 122, the pressure in the first channel 121 or the second channel 122 can overcome the elastic force of the elastic member 32, so that the first high-pressure chamber and the first low-pressure chamber are connected or separated, and when the pressure difference between the first channel 121 and the second channel 122 disappears, the slide 31 can be pushed by the elastic force of the elastic member 32 to move, so that the first high-pressure chamber and the first low-pressure chamber are separated or connected, and the slide 31 is controlled by the first channel 121, the second channel 122 and the elastic member 32, so that different control requirements can be achieved, and the control is convenient. For example, the elastic member 32 can be a spring.

[0052] At the same time, if Figure 1-Figure 3 As shown, the first exhaust port 212 and the second air intake port 221 are connected, so that the first compression chamber 21 and the second compression chamber 22 are connected in series. The refrigerant compressed by the first compression chamber 21 can enter the second compression chamber 22 through the first exhaust port 212 and the second air intake port 221 for compression, so that the refrigerant can be compressed twice, which effectively improves the compression efficiency of the compressor 10, ensures the efficient operation of the refrigeration system 100, and can achieve higher load conditions.

[0053] For example, Figure 1 and Figure 7 As shown, when the outdoor temperature is detected to be ultra-low temperature and the refrigeration system 100 is in heating operation, the refrigeration system 100 requires a larger refrigerant flow rate, and the first compression chamber 21 and the second compression chamber 22 work simultaneously. The first valve port 41 is connected to the second valve port 42, the third valve port 43 is connected to the fourth valve port 44, the first channel 121 is a low pressure connected to the first air intake port 211, and the second channel 122 is a high pressure connected to the exhaust port 111, so that a pressure difference is formed between the first channel 121 and the second channel 122, and the pressure difference can offset the elastic force of the elastic member 32, so that the slide 31 can be located in the first compression chamber 21, the first high pressure chamber and the first low pressure chamber are separated, and the first compression chamber 21 can work normally.

[0054] After the low-pressure refrigerant enters the first compression chamber 21 from the first air intake port 211 for one compression, it enters the second compression chamber 22 from the first air intake port 212 and the second air intake port 221 for a second compression, and is discharged from the compressor 10 through the second air intake port and the air intake port 111. The compressed refrigerant can enter the indoor heat exchanger 51 through the first valve port 41 and the second valve port 42 to meet the indoor heating demand, and after condensing in the indoor heat exchanger 51, the refrigerant enters the outdoor heat exchanger 52 to evaporate and absorb heat, and then enters the first compression chamber 21 from the first air intake port 211 through the fourth valve port 44 and the third valve port 43, thereby completing the cycle.

[0055] For example, Figure 2 and Figure 7 As shown, when the outdoor temperature is detected to be medium or low and the refrigeration system 100 is in refrigeration operation, the refrigeration system 100 requires less refrigerant flow. In order to reduce the refrigerant flow, the first compression chamber 21 does not work, the second compression chamber 22 works, the first valve port 41 is connected to the fourth valve port 44, the third valve port 43 is connected to the second valve port 42, the first channel 121 and the second channel 122 are both at low pressure, that is, the pressure difference disappears, so that the slide 31 can be moved out of the first compression chamber 21 under the elastic force of the elastic member 32, the first high-pressure chamber and the first low-pressure chamber are connected, and the first compression chamber 21 cannot work normally.

[0056] The low-pressure refrigerant enters the first compression chamber 21 from the first air intake port 211 without being compressed, and enters the second compression chamber 22 through the first exhaust port 212 and the second air intake port 221 for compression, and is discharged from the compressor 10 through the second exhaust port and the exhaust port 111. The compressed refrigerant can enter the outdoor heat exchanger 52 through the first valve port 41 and the fourth valve port 44 for condensation, and after condensation in the outdoor heat exchanger 52, the refrigerant enters the indoor heat exchanger 51 to evaporate and absorb heat, thereby meeting the indoor cooling demand, and then enters the first compression chamber 21 from the first air intake port 211 through the second valve port 42 and the third valve port 43, thereby completing the cycle.

[0057] In some embodiments, Figure 1-Figure 4 As shown, one end of the first channel 121 and one end of the second channel 122 are respectively located at the sliding plate 31 along the axial direction of the first compression chamber 21 (for example Figure 3 The first channel 121 and the second channel 122 are controlled to drive the slide 31 to move in the axial direction of the first compression chamber 21, and the elastic member 32 is provided at one end of the slide 31 in the axial direction of the first compression chamber 21. The elastic member 32 can drive the slide 31 to move in the axial direction of the first compression chamber 21, so that the assembly is convenient and the movement control is simple.

[0058] According to the refrigeration system 100 of the embodiment of the utility model, a slide 31 is provided in the first compression chamber 21 of the compression mechanism 12 for dividing the first compression chamber 21 into a first high-pressure chamber and a first low-pressure chamber, one end of the first channel 121 and one end of the second channel 122 are respectively located at two ends of the slide 31, the third valve port 43 is connected to the first air inlet 211 and the other end of the first channel 121, the second valve port 42 is connected to the other end of the second channel 122, the first channel 121 and the second channel 122 are used to drive the slide 31 to move so that the first high-pressure chamber and the first low-pressure chamber are separated and connected, and the elastic member 32 is provided at one end of the slide 31, and the elastic member 32 is used to drive The slide 31 moves to enable the first high-pressure chamber and the first low-pressure chamber to achieve the other of conduction and isolation, which can realize the transformation of the volume of the compressor 10. When the speed of the compressor 10 remains unchanged, the capacity output of the compressor 10 can be reduced under low load, thereby improving the operating efficiency of the refrigeration system 100 under low load, making the refrigeration system 100 more energy-efficient, and improving the overall capacity and energy efficiency of the refrigeration system 100. The first exhaust port 212 and the second intake port 221 are connected, so that the first compression chamber 21 and the second compression chamber 22 are connected in series. The refrigerant can be compressed twice, which effectively improves the compression efficiency of the compressor 10, ensures the efficient operation of the refrigeration system 100, and can achieve higher load conditions.

[0059] In some embodiments of the present invention, Figure 1-Figure 3 As shown, the refrigeration system 100 also includes a mixing chamber 70, and the first exhaust port 212 and the second air intake port 221 are connected through the mixing chamber 70, which facilitates the connection between the first exhaust port 212 and the second air intake port 221, thereby realizing the series connection of the first compression chamber 21 and the second compression chamber 22, avoiding the complication of the structure caused by adding multiple connection structures, facilitating the realization of the required connection requirements, ensuring smooth flow of the refrigerant, and having a simple structure and easy assembly.

[0060] According to some embodiments of the present invention, Figure 1 and Figure 2 As shown, the refrigeration system 100 further includes a second connecting branch 62, one end of the second connecting branch 62 is connected between the indoor heat exchanger 51 and the outdoor heat exchanger 52, and the other end of the second connecting branch 62 is connected to the mixing chamber 70. The second connecting branch 62 is provided with a first expansion valve 81, so that the refrigerant flowing through the indoor heat exchanger 51 or the outdoor heat exchanger 52 for heat exchange is depressurized by the first expansion valve 81 and enters the mixing chamber 70, and can be mixed with the refrigerant flowing out of the first exhaust port 212 and enter the second air intake port 221, effectively reducing the temperature of the refrigerant, improving the energy efficiency, and thus improving the working efficiency of the compressor 10. For example, the first expansion valve 81 can be an electronic expansion valve.

[0061] It should be noted that the first expansion valve 81 can adjust and close the refrigerant flow of the second connecting branch 62 according to actual conditions, and can meet different control requirements for the second connecting branch 62.

[0062] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the refrigeration system 100 also includes a heat exchanger 53, and the heat exchanger 53 includes a first heat exchange channel 531 and a second heat exchange channel 532. The first heat exchange channel 531 is connected in series to the flow path between the indoor heat exchanger 51 and the outdoor heat exchanger 52, and the second heat exchange channel 532 is connected in series to the second connecting branch 62, so that the refrigerant in the flow path between the indoor heat exchanger 51 and the outdoor heat exchanger 52 can exchange heat with the refrigerant in the second heat exchange channel 532, which can meet the required heat exchange requirements, realize heat recovery, and effectively reduce heat loss. For example, the heat exchanger 53 is a plate heat exchanger 53.

[0063] In addition, if Figure 1 and Figure 2 As shown, the first expansion valve 81 is located on the side of the second heat exchange channel 532 away from the mixing chamber 70, so that the refrigerant flowing out of the indoor heat exchanger 51 or the outdoor heat exchanger 52 flows through the first expansion valve 81 and enters the second heat exchange channel 532 for heat exchange, thereby facilitating the adjustment of the refrigerant flow on the second connecting branch 62 to meet the required adjustment requirements.

[0064] In some embodiments, Figure 1 and Figure 2 As shown, a second expansion valve 82 is provided on the flow path between the indoor heat exchanger 51 and the outdoor heat exchanger 52, and the second expansion valve 82 is located between the indoor heat exchanger 51 and the second connecting branch 62, so that the second expansion valve 82 can adjust and reduce the pressure of the refrigerant in the flow path between the indoor heat exchanger 51 and the outdoor heat exchanger 52 to meet the required adjustment requirements. For example, the second expansion valve 82 is an electronic expansion valve.

[0065] It should be noted that the second expansion valve 82 can adjust and close the refrigerant in the flow path between the indoor heat exchanger 51 and the outdoor heat exchanger 52 according to actual conditions, and can meet the regulation requirements of the refrigerant in the flow path between the indoor heat exchanger 51 and the outdoor heat exchanger 52.

[0066] In some embodiments, Figure 1 and Figure 2As shown, a third expansion valve 83 is provided on the flow path between the indoor heat exchanger 51 and the outdoor heat exchanger 52, and the third expansion valve 83 is located between the outdoor heat exchanger 52 and the first heat exchange channel 531, so that the third expansion valve 83 can adjust and reduce the pressure of the refrigerant in the flow path between the indoor heat exchanger 51 and the outdoor heat exchanger 52 to meet the required adjustment requirements. For example, the third expansion valve 83 is an electronic expansion valve.

[0067] It should be noted that the third expansion valve 83 can adjust and close the refrigerant in the flow path between the indoor heat exchanger 51 and the outdoor heat exchanger 52 according to actual conditions, and can meet the regulation requirements of the refrigerant in the flow path between the indoor heat exchanger 51 and the outdoor heat exchanger 52.

[0068] In some embodiments, Figure 1 and Figure 2 As shown, a second expansion valve 82 and a third expansion valve 83 are provided on the flow path between the indoor heat exchanger 51 and the outdoor heat exchanger 52. The second expansion valve 82 is located between the indoor heat exchanger 51 and the second connecting branch 62, and the third expansion valve 83 is located between the outdoor heat exchanger 52 and the first heat exchange channel 531, so that the second expansion valve 82 and the third expansion valve 83 can respectively realize the requirements of regulating and reducing the pressure of the refrigerant in the flow path between the indoor heat exchanger 51 and the outdoor heat exchanger 52 to meet the required regulation requirements.

[0069] According to some embodiments of the present invention, Figure 1 and Figure 2 As shown, the refrigeration system 100 also includes a first connecting branch 61, one end of the first connecting branch 61 is connected to the third valve port 43, and the other end of the first connecting branch 61 is connected to the mixing chamber 70, so that the refrigerant flowing out of the third valve port 43 can enter the mixing chamber 70 through the first connecting branch 61, thereby being able to meet the refrigerant quantity required by the second suction port 221. For example, when the first compression chamber 21 is not working and the second compression chamber 22 is working, the first connecting branch 61 can provide refrigerant to the second suction port 221 to meet the required refrigerant demand, which is beneficial to improving the working efficiency of the compressor 10.

[0070] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, a one-way valve 611 is provided on the first connecting branch 61, and the one-way valve 611 is used to control the refrigerant to flow only from the third valve port 43 to the mixing chamber 70, so that the refrigerant flowing out of the third valve port 43 can enter the mixing chamber 70 through the first connecting branch 61, and can prevent the refrigerant in the mixing chamber 70 from entering the first connecting branch 61 and affecting the normal operation of the refrigeration system 100.

[0071] For example, in some specific embodiments, Figure 1 and Figure 7 As shown, when the outdoor temperature is detected to be ultra-low temperature and the refrigeration system 100 is in heating operation, the first compression chamber 21 and the second compression chamber 22 work simultaneously, the first valve port 41 is connected with the second valve port 42, the third valve port 43 is connected with the fourth valve port 44, the first expansion valve 81 and the third expansion valve 83 are adjusted, and the second expansion valve 82 is in a fully open state.

[0072] After the low-pressure refrigerant enters the first compression chamber 21 from the first air intake port 211 for one compression, it enters the mixing chamber 70 from the first air exhaust port 212 and mixes with the refrigerant in the second connecting branch 62, enters the second compression chamber 22 through the second air intake port 221 for a second compression, and is discharged from the compressor 10 through the second air exhaust port and the air exhaust port 111. The compressed refrigerant can enter the indoor heat exchanger 51 through the first valve port 41 and the second valve port 42 to meet the indoor heating demand. After the refrigerant is condensed in the indoor heat exchanger 51, it passes through the second expansion valve 82 without throttling. A part of the refrigerant flowing out of the second expansion valve 82 can enter the second heat exchange channel 532 through the first expansion valve 81, and the other part of the refrigerant directly enters the first heat exchange channel 531. The refrigerant in the first heat exchange channel 531 and the refrigerant in the second heat exchange channel 532 exchange heat. The refrigerant flowing out of the second heat exchange channel 532 flows into the mixing chamber 70. The refrigerant flowing out of the first heat exchange channel 531 is throttled by the third expansion valve 83 and then enters the outdoor heat exchanger 52 to evaporate and absorb heat. Then, it passes through the fourth valve port 44 and the third valve port 43 and enters the first compression chamber 21 from the first intake port 211, thereby completing the cycle.

[0073] For example, Figure 2 and Figure 7 As shown, when the outdoor temperature is detected to be medium or low and the refrigeration system 100 is in refrigeration operation, the first compression chamber 21 does not work, the second compression chamber 22 works, the first valve port 41 is connected to the fourth valve port 44, the third valve port 43 is connected to the second valve port 42, the first expansion valve 81 is controlled to be closed, so that the second connecting branch 62 is disconnected, the second expansion valve 82 is adjusted, and the third expansion valve 83 is in a fully open state.

[0074] The low-pressure refrigerant enters the first compression chamber 21 from the first air intake port 211 without being compressed, and enters the mixing chamber 70 through the first exhaust port 212, and is mixed with the refrigerant in the first connecting branch 61, and enters the second compression chamber 22 through the second air intake port 221 for compression and is discharged from the compressor 10 through the second exhaust port and the exhaust port 111. The compressed refrigerant can enter the outdoor heat exchanger 52 through the first valve port 41 and the fourth valve port 44 for condensation. After condensation in the outdoor heat exchanger 52, the refrigerant passes through the third expansion valve 83 without throttling, and then passes through the second expansion valve 82 for throttling, and enters the indoor heat exchanger 51 to evaporate and absorb heat, thereby meeting the indoor cooling demand. Then, a part of the refrigerant passes through the second valve port 42 and the third valve port 43 and enters the first compression chamber 21 from the first air intake port 211, and the other part enters the mixing chamber 70 through the one-way valve 611, thereby completing the cycle.

[0075] According to some embodiments of the present invention, Figure 1-Figure 3 As shown, the mixing chamber 70 is located outside the compressor 10, so that the volume of the mixing chamber 70 is not limited by the volume of the compressor 10, and can meet different setting requirements of the mixing chamber 70, so that the mixing chamber 70 can be as large as possible, ensuring that the refrigerant is mixed more evenly and the impact force is small, thereby reducing pressure loss and improving the working efficiency of the refrigeration system 100.

[0076] In some embodiments of the present invention, Figure 1-Figure 3 As shown, the refrigeration system 100 also includes a gas-liquid separator 90. A gas-liquid separator 90 is provided between the third valve port 43 and the first air intake port 211, so that the refrigerant flowing out of the third valve port 43 can be separated into gas and liquid through the gas-liquid separator 90, ensuring that the gaseous refrigerant enters the first compression chamber 21 through the first air intake port 211, thereby meeting the use requirements of the refrigerant.

[0077] In some embodiments of the present invention, Figure 1-Figure 6 As shown, a top plug 33 is provided between the slide 31 and the elastic member 32, so that the elastic force of the elastic member 32 can be transmitted to the slide 31 through the top plug 33, which is convenient for pushing the slide 31, making the pushing of the slide 31 more reliable, and the structure is simple, which is convenient for assembly.

[0078] In some embodiments, Figure 5 As shown, the top plug 33 is a cylindrical metal part, which is easy to process and manufacture, so that the structure is simple and the driving of the slide 31 is reliable.

[0079] In some embodiments, a cylinder, an upper bearing seat and a lower bearing seat are provided in the shell 11, and the upper bearing seat and the lower bearing seat are respectively located on both sides of the thickness direction of the cylinder, and a first compression chamber 21 is defined between the cylinder, the upper bearing seat is provided with a first groove, and the lower bearing seat is provided with a second groove, the first groove and the second groove are connected with the first compression chamber 21, and the first groove and the second groove are respectively located on opposite sides of the first compression chamber 21, and a top plug 33 and an elastic member 32 are provided in the second groove, one end of the elastic member 32 is connected to the bottom wall of the groove of the second groove, and the other end of the elastic member 32 is connected to the top plug 33, and the end of the top plug 33 away from the elastic member 32 is against the slide 31, when the drive slide 31 moves and is located in the first groove, the first high-pressure chamber and the first low-pressure chamber are connected, and the first compression chamber 21 does not work; when the drive slide 31 moves and is located in the first compression chamber 21, the first high-pressure chamber and the first low-pressure chamber are separated, and the first compression chamber 21 can work normally, and the internal structure of the compressor 10 is simple, which is convenient for processing and manufacturing.

[0080] The air conditioner according to the embodiment of the utility model includes the refrigeration system 100 according to the embodiment of the utility model. Since the refrigeration system 100 according to the embodiment of the utility model has the above-mentioned beneficial technical effects, the air conditioner according to the embodiment of the utility model is provided with a slide 31 for dividing the first compression chamber 21 into a first high-pressure chamber and a first low-pressure chamber through the first compression chamber 21 of the compression mechanism 12, one end of the first channel 121 and one end of the second channel 122 are respectively located at the two ends of the slide 31, the third valve port 43 is connected with the first air intake port 211 and the other end of the first channel 121, the second valve port 42 is connected with the other end of the second channel 122, the first channel 121 and the second channel 122 are used to drive the slide 31 to move so that the first high-pressure chamber and the first low-pressure chamber are separated and connected, and the elastic member 32 is provided on the slide 31. 1, and the elastic member 32 is used to drive the sliding plate 31 to move so that the first high-pressure chamber and the first low-pressure chamber can be connected and separated from each other, so as to realize the transformation of the volume of the compressor 10. When the speed of the compressor 10 remains unchanged, the capacity output of the compressor 10 can be reduced under low load, so as to improve the operation efficiency of the refrigeration system 100 under low load, make the refrigeration system 100 more energy-saving, and improve the overall capacity and energy efficiency of the refrigeration system 100. The first exhaust port 212 and the second air intake port 221 are connected, so that the first compression chamber 21 and the second compression chamber 22 are connected in series, and the refrigerant can be compressed twice, so as to effectively improve the compression efficiency of the compressor 10, ensure the efficient operation of the refrigeration system 100, and realize a higher load condition.

[0081] Other structures and operations of the refrigeration system 100 and the air conditioner according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail here.

[0082] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0083] In the description of this specification, the description with reference to the terms "embodiment", "specific embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0084] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A refrigeration system, characterized in that: include: A compressor, the compressor comprising a shell and a compression mechanism, the shell having an exhaust port, the compression mechanism being arranged in the shell and having a first compression chamber and a second compression chamber, the first compression chamber having a first air intake port and a first exhaust port, the second compression chamber having a second air intake port and a second exhaust port, the first exhaust port and the second air intake port being communicated with each other, a sliding vane for dividing the first compression chamber into a first high-pressure chamber and a first low-pressure chamber is arranged in the first compression chamber, a first channel and a second channel are arranged on the compression mechanism, one end of the first channel and one end of the second channel are respectively located at two ends of the sliding vane, and are used to drive the sliding vane to move so that the first high-pressure chamber and the first low-pressure chamber are separated or connected; a reversing assembly, the reversing assembly having a first valve port, a second valve port, a third valve port and a fourth valve port, the first valve port being communicated with the exhaust port, the second valve port being communicated with the other end of the second channel, the third valve port being communicated with the first intake port and the other end of the first channel, the first valve port being communicated with one of the second valve port and the fourth valve port, and the third valve port being communicated with the other of the second valve port and the fourth valve port; an indoor heat exchanger and an outdoor heat exchanger, wherein one end of the indoor heat exchanger is connected to the second valve port, and the other end of the indoor heat exchanger is connected to one end of the outdoor heat exchanger, and the other end of the outdoor heat exchanger is connected to the fourth valve port; An elastic member is disposed at one end of the slide and is used to drive the slide to move so that the first high-pressure chamber and the first low-pressure chamber can be connected or isolated from each other.

2. The refrigeration system according to claim 1, characterized in that: The refrigeration system further comprises: A mixing chamber, through which the first exhaust port and the second intake port are communicated.

3. The refrigeration system according to claim 2, characterized in that: The refrigeration system further comprises: A second connecting branch, one end of which is connected between the indoor heat exchanger and the outdoor heat exchanger, the other end of which is connected to the mixing chamber, and a first expansion valve is provided on the second connecting branch.

4. The refrigeration system according to claim 3, characterized in that: The refrigeration system further comprises: A heat exchanger, wherein the heat exchanger includes a first heat exchange channel and a second heat exchange channel, the first heat exchange channel is connected in series on the flow path between the indoor heat exchanger and the outdoor heat exchanger, the second heat exchange channel is connected in series on the second connecting branch, and the first expansion valve is located on the side of the second heat exchange channel away from the mixing chamber.

5. The refrigeration system according to claim 4, characterized in that: A second expansion valve is provided on the flow path between the indoor heat exchanger and the outdoor heat exchanger, and the second expansion valve is located between the indoor heat exchanger and the second communication branch; And / or, a third expansion valve is provided on the flow path between the indoor heat exchanger and the outdoor heat exchanger, and the third expansion valve is located between the outdoor heat exchanger and the first heat exchange channel.

6. The refrigeration system according to claim 2, characterized in that: The refrigeration system further comprises: A first communication branch, one end of which is communicated with the third valve port, and the other end of which is communicated with the mixing chamber.

7. The refrigeration system according to claim 6, characterized in that: A one-way valve is provided on the first connecting branch, and the one-way valve is used to control the refrigerant to flow from the third valve port to the mixing chamber only.

8. The refrigeration system according to claim 2, characterized in that: The mixing chamber is located outside the compressor.

9. The refrigeration system according to claim 1, characterized in that: Also includes: A gas-liquid separator is provided between the third valve port and the first air intake port.

10. The refrigeration system according to claim 1, characterized in that: A top plug is provided between the sliding sheet and the elastic member.

11. An air conditioner, characterized in that: Comprising a refrigeration system according to any one of claims 1-10.

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