Temperature adjusting system

Abstract

The invention provides a temperature adjusting system, and belongs to the technical field of temperature adjustment. The temperature adjusting system comprises a compressor, a first four-way valve, an outdoor heat exchanger, an indoor heat exchanger, a first throttling device, a second throttling device and a heat regenerator. The first four-way valve is provided with a first port to a fourth port, and the heat regenerator is provided with a first connector to a fourth connector. The first port communicates with the air outlet end of the compressor. The second port, the outdoor heat exchanger and the first throttling device are sequentially communicated, and the first throttling device is further communicated with the first connector. The third port, the fourth connector, the third connector and the air inlet end of the compressor are sequentially communicated. The fourth port, the indoor heat exchanger and the second throttling device are sequentially communicated, and the second throttling device is further communicated with the second connector. The heat regenerator can supercool the liquid refrigerant and superheat the gas refrigerant, the refrigerating efficiency of the temperature adjusting system is improved, and liquid impact of the compressor can be prevented in both the refrigerating mode and the heating mode. In addition, pipelines in the temperature adjusting system are simple, and cost is reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of temperature regulation, and particularly relates to a temperature regulation system. Background Art

[0002] A temperature regulation system is a system for realizing the functions of refrigeration and heating.

[0003] In the related art, a temperature regulation system includes a compressor, an outdoor heat exchanger, and an indoor heat exchanger. In the refrigeration condition, the compressor compresses the refrigerant into a high-temperature and high-pressure gaseous refrigerant. The gaseous refrigerant enters the outdoor heat exchanger and becomes a high-temperature and high-pressure liquid refrigerant, and then the liquid refrigerant enters the indoor heat exchanger to absorb heat and become a gaseous refrigerant, thereby reducing the temperature of the surrounding air, so as to achieve refrigeration. Finally, the gaseous refrigerant returns to the compressor. In the heating condition, the compressor compresses the refrigerant into a high-temperature and high-pressure gaseous refrigerant. The gaseous refrigerant enters the indoor heat exchanger and releases heat to become a liquid refrigerant, raising the temperature of the surrounding air, so as to achieve heating. The liquid refrigerant passes through the outdoor heat exchanger, absorbs heat and vaporizes, and finally the gaseous refrigerant enters the compressor.

[0004] However, the refrigeration efficiency of the temperature regulation system in the related art is low, and the gaseous refrigerant entering the compressor is likely to be mixed with liquid refrigerant. Summary of the Invention

[0005] The present disclosure provides a temperature regulation system that can solve the technical problems existing in the related art. The technical solution of the temperature regulation system is as follows.

[0006] The present disclosure provides a temperature regulation system, which has a refrigeration mode and a heating mode. The temperature regulation system includes a compressor, a first four-way valve, an outdoor heat exchanger, an indoor heat exchanger, a first throttling device, a second throttling device, and a regenerator;

[0007] The first four-way valve has a first port, a second port, a third port, and a fourth port. The regenerator has a first interface, a second interface, a third interface, and a fourth interface. Among them, the first interface and the second interface are connected inside the regenerator, and the third interface and the fourth interface are connected inside the regenerator;

[0008] The first port is communicated with the air outlet end of the compressor;

[0009] The second port, the outdoor heat exchanger, and the first throttling device are connected in sequence, and the first throttling device is also communicated with the first interface;

[0010] The third port, the fourth interface, the third interface, and the air inlet end of the compressor are connected in sequence;

[0011] The fourth port, the indoor heat exchanger, and the second throttling device are connected in sequence, and the second throttling device is also connected to the second interface;

[0012] In the refrigeration mode, the first port is connected to the second port, and the third port is connected to the fourth port;

[0013] In the heating mode, the first port is connected to the fourth port, and the second port is connected to the third port.

[0014] In a possible implementation, the temperature regulation system further includes a first check valve, a second check valve, a third check valve, and a fourth check valve;

[0015] Two ends of the first check valve are respectively connected to the first throttling device and the second interface, two ends of the second check valve are respectively connected to the first interface and the second throttling device, two ends of the third check valve are respectively connected to the second throttling device and the second interface, and two ends of the fourth check valve are respectively connected to the first interface and the first throttling device;

[0016] In the refrigeration mode, the first check valve and the second check valve are opened, and the third check valve and the fourth check valve are closed;

[0017] In the heating mode, the first check valve and the second check valve are closed, and the third check valve and the fourth check valve are opened.

[0018] In a possible implementation, in the refrigeration mode, the opening degree of the first throttling device is a first opening degree, and the opening degree of the second throttling device is less than the first opening degree;

[0019] In the heating mode, the opening degree of the second throttling device is a second opening degree, and the opening degree of the first throttling device is less than the second opening degree.

[0020] In a possible implementation, the first check valve, the second check valve, the third check valve, and the fourth check valve are all the same.

[0021] In a possible implementation, the temperature regulation system further includes a second four-way valve, and the second four-way valve has a fifth port, a sixth port, a seventh port, and an eighth port;

[0022] The fifth port is connected to the outdoor heat exchanger, the sixth port, the second throttling device, and the second interface are connected in sequence, the seventh port is connected to the indoor heat exchanger, and the eighth port, the first throttling device, and the first interface are connected in sequence;

[0023] In the refrigeration mode, the fifth port communicates with the sixth port, and the eighth port communicates with the seventh port;

[0024] In the heating mode, the fifth port communicates with the eighth port, and the sixth port communicates with the seventh port.

[0025] In a possible implementation manner, in the refrigeration mode, the opening degree of the second throttling device is the third opening degree, and the opening degree of the throttling device is less than the third opening degree;

[0026] In the heating mode, the opening degree of the second throttling device is the fourth opening degree, and the opening degree of the throttling device is less than the fourth opening degree.

[0027] In a possible implementation manner, the second four-way valve is the same as the first four-way valve.

[0028] In a possible implementation manner, the flow direction of the refrigerant from the second interface to the first interface is opposite to the flow direction of the refrigerant from the fourth interface to the third interface.

[0029] In a possible implementation manner, the first interface is opposite to the fourth interface, and the second interface is opposite to the third interface.

[0030] In a possible implementation manner, the first interface and the second interface of the regenerator are arranged along the length direction of the regenerator;

[0031] The third interface and the fourth interface of the regenerator are arranged along the length direction of the regenerator.

[0032] In a possible implementation manner, the temperature regulation system is an air conditioner.

[0033] The technical solution provided by the present disclosure has at least the following beneficial effects:

[0034] The present disclosure provides a temperature regulation system. In the refrigeration mode, the refrigerant is compressed by a compressor into superheated steam at high temperature and high pressure. Then, the gaseous refrigerant sequentially flows through the outlet end, the first port, the second port, and the outdoor heat exchanger, and liquefies in the outdoor heat exchanger to become liquid refrigerant at high temperature and high pressure. Then, the liquid refrigerant enters the regenerator, then enters the indoor heat exchanger, and evaporates and absorbs heat in the indoor heat exchanger to become gaseous refrigerant at low temperature and low pressure, while reducing the temperature of the surrounding air, thereby achieving refrigeration. Then, the gaseous refrigerant sequentially flows through the fourth port, the third port, and the regenerator, and finally enters the compressor through the inlet end. The liquid refrigerant and the gaseous refrigerant can perform heat exchange in the regenerator, and the gaseous refrigerant absorbs heat from the liquid refrigerant, causing the liquid refrigerant to be further subcooled. In this way, the liquid refrigerant will absorb more heat when vaporizing in the indoor heat exchanger, thereby further reducing the temperature around the indoor heat exchanger, and further improving the refrigeration efficiency. At the same time, the gaseous refrigerant entering the compressor is further superheated, thereby preventing liquid slugging in the compressor, that is, avoiding the entry of liquid refrigerant into the compressor.

[0035] In the heating mode, the refrigerant is compressed by a compressor into superheated steam at high temperature and high pressure. Then, the gaseous refrigerant sequentially flows through the outlet end, the first port, the fourth port, and the indoor heat exchanger, and liquefies and releases heat in the indoor heat exchanger to become liquid refrigerant at high temperature and high pressure, while increasing the temperature of the surrounding air, thereby achieving heating. Then, the liquid refrigerant sequentially flows through the regenerator and the outdoor heat exchanger, and absorbs heat in the indoor heat exchanger to become gaseous refrigerant at low temperature and low pressure. Then, the gaseous refrigerant passes through the second port, the third port, and the regenerator, and finally enters the compressor through the inlet end. The liquid refrigerant and the gaseous refrigerant can perform heat exchange in the regenerator, causing the gaseous refrigerant entering the compressor to be further superheated, thereby preventing liquid slugging in the compressor, that is, avoiding the entry of liquid refrigerant into the compressor.

[0036] In addition, the temperature regulation system provided by the present disclosure has fewer components and a simpler pipeline, reducing the complexity and cost of processing.

[0037] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure. In the drawings:

[0039] Figure 1 is a schematic structural diagram of a temperature regulation system shown in an embodiment of the present disclosure;

[0040] Figure 2 It is a schematic structural diagram of a temperature regulation system shown in an embodiment of the present disclosure;

[0041] Figure 3 It is a schematic structural diagram of a temperature regulation system shown in an embodiment of the present disclosure;

[0042] Figure 4 It is a schematic structural diagram of a temperature regulation system shown in an embodiment of the present disclosure;

[0043] Figure 5 It is a schematic structural diagram of a temperature regulation system shown in an embodiment of the present disclosure;

[0044] Figure 6 It is a schematic structural diagram of a temperature regulation system shown in an embodiment of the present disclosure;

[0045] Figure 7 It is a schematic structural diagram of a temperature regulation system shown in an embodiment of the present disclosure;

[0046] Figure 8 It is a schematic structural diagram of a temperature regulation system shown in an embodiment of the present disclosure;

[0047] Figure 9 It is a schematic structural diagram of a temperature regulation system shown in an embodiment of the present disclosure.

[0048] Legend Explanation:

[0049] 1. Compressor, 11. Air outlet end, 12. Air inlet end;

[0050] 2. First four-way valve, 21. First port, 22. Second port, 23. Third port, 24. Fourth port;

[0051] 3. Outdoor heat exchanger;

[0052] 4. Indoor heat exchanger;

[0053] 5. First throttling device;

[0054] 6. Second throttling device;

[0055] 7. Regenerator, 71. First interface, 72. Second interface, 73. Third interface, 74. Fourth interface;

[0056] 8. Check valve assembly, 81. First check valve, 82. Second check valve, 83. Third check valve, 84. Fourth check valve;

[0057] 9. Second four-way valve, 91. Fifth port, 92. Sixth port, 93. Seventh port, 94. Eighth port.

[0058] Through the above-mentioned drawings, specific embodiments of the present disclosure have been shown and will be described in more detail hereinafter. These drawings and the written description are not intended to limit the scope of the concept of the present disclosure in any way, but to illustrate the concept of the present disclosure to those skilled in the art by reference to specific embodiments. Detailed Description of the Embodiments

[0059] To make the objectives, technical solutions, and advantages of the present disclosure clearer, the following will further describe the embodiments of the present disclosure in detail with reference to the drawings.

[0060] The terms used in the embodiments of the present disclosure are only for the purpose of explaining the embodiments of the present disclosure and are not intended to limit the present disclosure. Unless otherwise defined, the technical terms or scientific terms used herein should be understood in the ordinary sense by those of ordinary skill in the art to which the present disclosure pertains. The terms "first", "second", "third", and similar terms used in the specification and claims of the present patent application do not denote any order, quantity, or importance, but are only used to distinguish different components. Similarly, the terms "a" or "an" and the like do not denote a quantity limitation, but mean that there is at least one. The terms "comprising" or "including" and the like are intended to cover the elements or items listed after the word "comprising" or "including" and their equivalents, and do not exclude other elements or items. The terms "connected" or "coupled" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationships may also change accordingly.

[0061] A temperature regulation system is a system used to achieve the functions of refrigeration and heating. In the related art, the temperature regulation system includes a compressor, an outdoor heat exchanger, an indoor heat exchanger, and a capillary tube assembly. In the refrigeration mode, the compressor compresses the refrigerant into a high-temperature and high-pressure gaseous refrigerant. The gaseous refrigerant enters the outdoor heat exchanger and becomes a high-temperature and high-pressure liquid refrigerant. Then, the high-temperature and high-pressure liquid refrigerant flows through the capillary tube assembly and becomes a high-temperature and low-pressure liquid refrigerant. The high-temperature and low-pressure liquid refrigerant enters the indoor heat exchanger, absorbs heat, and becomes a gaseous refrigerant, thereby reducing the temperature of the surrounding air and achieving refrigeration. Finally, the gaseous refrigerant returns to the compressor. In the heating mode, the compressor compresses the refrigerant into a high-temperature and high-pressure gaseous refrigerant. The gaseous refrigerant enters the indoor heat exchanger and releases heat to become a high-temperature and high-pressure liquid refrigerant, increasing the temperature of the surrounding air and achieving heating. Then, the high-temperature and high-pressure liquid refrigerant flows through the capillary tube assembly and becomes a high-temperature and low-pressure liquid refrigerant. The high-temperature and low-pressure liquid refrigerant passes through the outdoor heat exchanger, absorbs heat and vaporizes, and finally the gaseous refrigerant enters the compressor. However, the refrigeration efficiency of the temperature regulation system in the related art is relatively low, and the gaseous refrigerant entering the compressor is likely to be mixed with liquid refrigerant. In addition, the pipeline of the temperature regulation system in the related art is relatively complex.

[0062] In view of the above technical problems, the embodiments of the present disclosure provide a temperature regulation system, which has a refrigeration mode and a heating mode. As Figure 1 shown, the temperature regulation system includes a compressor 1, a first four-way valve 2, an outdoor heat exchanger 3, an indoor heat exchanger 4, a first throttling device 5, a second throttling device 6, and a regenerator 7. The first four-way valve 2 has a first port 21, a second port 22, a third port 23, and a fourth port 24. The regenerator 7 has a first interface 71, a second interface 72, a third interface 73, and a fourth interface 74. Among them, the first interface 71 and the second interface 72 are connected inside the regenerator 7, and the third interface 73 and the fourth interface 74 are connected inside the regenerator 7. The first port 21 of the first four-way valve 2 is connected to the air outlet end 11 of the compressor 1. The second port 22 of the first four-way valve 2, the outdoor heat exchanger 3, and the first throttling device 5 are connected in sequence, and the first throttling device 5 is also connected to the first interface 71. The third port 23, the fourth interface 74, the third interface 73, and the air inlet end 12 of the compressor 1 are connected in sequence. The fourth port 24 of the first four-way valve 2, the indoor heat exchanger 4, and the second throttling device 6 are connected in sequence, and the second throttling device 6 is also connected to the second interface 72. As Figure 2 shown, in the refrigeration mode, the first port 21 is connected to the second port 22, and the third port 23 is connected to the fourth port 24. As Figure 3 shown, in the heating mode, the first port 21 is connected to the fourth port 24, and the second port 22 is connected to the third port 23.

[0063] Among them, the compressor 1 is used to compress the refrigerant into a high-temperature and high-pressure gaseous refrigerant.

[0064] The indoor heat exchanger 4 can also be called the indoor unit, and the outdoor heat exchanger 3 can also be called the outdoor unit. When the liquid refrigerant passes through the indoor heat exchanger 4, it can evaporate and absorb heat to become a gaseous refrigerant, thereby lowering the temperature of the surrounding air and achieving refrigeration. When the gaseous refrigerant passes through the outdoor heat exchanger 3, it can liquefy and release heat, thereby increasing the temperature of the surrounding air and achieving heating.

[0065] The opening degrees of the first throttling device 5 and the second throttling device 6 are adjustable and are used for throttling and pressure reduction. When the first throttling device 5 is fully open (i.e., 100%), the pressure of the refrigerant does not change after flowing through the first throttling device 5. If the opening degree of the first throttling device 5 is small, the pressure of the refrigerant decreases after flowing through the first throttling device 5. Similarly, if the opening degree of the second throttling device 6 is 100%, the pressure of the refrigerant does not change when it flows through the second throttling device 6. If the opening degree of the second throttling device 6 is less than 100%, the pressure of the refrigerant decreases after flowing through the second throttling device 6. Both the first throttling device 5 and the second throttling device 6 can be expansion valves.

[0066] In some examples, the temperature regulation system is an air conditioner, and the air conditioner can achieve the switching between the refrigeration mode and the heating mode. In the refrigeration mode and the heating mode, the flow direction of the refrigerant in the air conditioner is different. Since the heat regenerator 7 and the first four-way valve 2 are provided in the temperature regulation system, the switching of the flow direction of the refrigerant can be achieved, so as to ensure that the gaseous refrigerant and the liquid refrigerant can exchange heat in the heat regenerator 7.

[0067] The technical solution provided by the embodiments of the present disclosure, in the refrigeration mode, such as Figure 2As shown (the dashed arrow represents the gaseous-liquid cold refrigerant, and the solid arrow represents the gaseous refrigerant), the refrigerant is compressed by the compressor 1 into high-temperature and high-pressure superheated steam. Then, the gaseous refrigerant flows through the outlet end 11, the first port 21, the second port 22, and the outdoor heat exchanger 3 in sequence, and liquefies in the outdoor heat exchanger 3 to become high-temperature and high-pressure liquid refrigerant. Then, the liquid refrigerant enters the regenerator 7, then enters the indoor heat exchanger 4, and evaporates and absorbs heat in the indoor heat exchanger 4 to become low-temperature and low-pressure gaseous refrigerant, while reducing the temperature of the surrounding air, thereby achieving refrigeration. Then, the gaseous refrigerant flows through the fourth port 24, the third port 23, and the regenerator 7 in sequence, and finally enters the compressor 1 through the inlet end 12. The liquid refrigerant and the gaseous refrigerant can exchange heat in the regenerator 7, and the gaseous refrigerant absorbs heat from the liquid refrigerant, making the liquid refrigerant further subcooled. In this way, the liquid refrigerant will absorb more heat when vaporizing in the indoor heat exchanger, thereby further reducing the temperature around the indoor heat exchanger, and then improving the refrigeration efficiency. At the same time, the gaseous refrigerant entering the compressor is further superheated, thereby preventing liquid slugging in the compressor, that is, avoiding liquid refrigerant from entering the compressor.

[0068] In the heating mode, as Figure 3 As shown (the dashed arrow represents the gaseous-liquid cold refrigerant, and the solid arrow represents the gaseous refrigerant), the refrigerant is compressed by the compressor 1 into high-temperature and high-pressure superheated steam. Then, the gaseous refrigerant flows through the outlet end 11, the first port 21, the fourth port 24, and the indoor heat exchanger 4 in sequence, and liquefies and releases heat in the indoor heat exchanger 4 to become high-temperature and high-pressure liquid refrigerant, and increases the temperature of the surrounding condensed air, thereby achieving heating. Then, the liquid refrigerant flows through the regenerator 7 and the outdoor heat exchanger 3 in sequence, and absorbs heat in the indoor heat exchanger 7 to become low-temperature and low-pressure gaseous refrigerant. Then, the gaseous refrigerant passes through the second port 22, the third port 23, and the regenerator 7 again, and finally enters the compressor through the inlet end 12. The liquid refrigerant and the gaseous refrigerant can exchange heat in the regenerator 7, making the gaseous refrigerant entering the compressor further superheated, thereby preventing liquid slugging in the compressor, that is, avoiding liquid refrigerant from entering the compressor.

[0069] In addition, the first throttling device 5 and the second throttling device 6 in the embodiments of the present disclosure can both be throttle valves to throttle and depressurize the refrigerant, rather than using a capillary tube assembly. Therefore, the number of components is reduced, the pipeline is simplified, and the processing complexity and cost are reduced.

[0070] In some examples, such as Figure 2As shown, the dashed arrows represent the gaseous-liquid refrigerant, and the solid arrows represent the gaseous refrigerant. In the refrigeration mode, the high-temperature and high-pressure gaseous refrigerant flows through the outlet end 11 of the compressor 1, the first port 21 of the first four-way valve 2, the second port 22 of the first four-way valve 2, and the outdoor heat exchanger 3 in sequence, and becomes a high-temperature and high-pressure liquid refrigerant in the outdoor heat exchanger. Then the liquid refrigerant flows through the first throttling device 5, the first interface 71 of the regenerator 7, the second interface 72 of the regenerator 7, the second throttling device 6, and the indoor heat exchanger 4 in sequence, and evaporates and absorbs heat in the indoor heat exchanger 4 to become a low-temperature and low-pressure gaseous refrigerant, while reducing the temperature of the surrounding air, thus achieving refrigeration. Then the gaseous refrigerant flows through the fourth port 24 of the first four-way valve 2, the third port 23 of the first four-way valve 2, the fourth interface 74 of the regenerator 7, the third interface 73 of the regenerator 7, and the inlet end 12 of the compressor 1 in sequence.

[0071] As Figure 3 shown (the dashed arrows represent the gaseous-liquid refrigerant, and the solid arrows represent the gaseous refrigerant), in the heating mode, the refrigerant is compressed by the compressor 1 into a high-temperature and high-pressure superheated steam. Then the gaseous refrigerant flows through the outlet end 11 of the compressor 1, the first port 21 of the first four-way valve 2, the fourth port 24 of the first four-way valve 2, and the indoor heat exchanger 4 in sequence, and liquefies and releases heat in the indoor heat exchanger 4 to become a high-temperature and high-pressure liquid refrigerant, and increases the temperature of the surrounding condensed air, thus achieving heating. Then the liquid refrigerant flows through the second throttling device 6, the second interface 72 of the regenerator 7, the first interface 71 of the regenerator 7, the first throttling device 5, the outdoor heat exchanger 3, the second port 22 of the first four-way valve 2, the third port 23 of the first four-way valve 2, the fourth interface 74 of the regenerator 7, the third interface 73 of the regenerator 7, and the inlet end 12 of the compressor 1 in sequence.

[0072] As Figure 2 shown, the flow direction of the refrigerant from the first interface 71 to the second interface 72 of the regenerator 7 is the same as the flow direction of the refrigerant from the fourth interface 74 to the third interface 73 of the regenerator 7.

[0073] To further improve the heat exchange rate between the liquid refrigerant and the gaseous refrigerant, in some examples, as Figure 4As shown, the temperature regulation system further includes a check valve assembly 8, and the check valve assembly 8 includes a first check valve 81, a second check valve 82, a third check valve 83, and a fourth check valve 84. The two ends of the first check valve 81 are respectively communicated with the first throttling device 5 and the second interface 72. The two ends of the second check valve 82 are respectively communicated with the first interface 71 and the second throttling device 6. The two ends of the third check valve 83 are respectively communicated with the second throttling device 6 and the second interface 72. The two ends of the fourth check valve 84 are respectively communicated with the first interface 71 and the first throttling device 5. In the refrigeration mode, the first check valve 81 and the second check valve 82 are opened, and the third check valve 83 and the fourth check valve 84 are closed. In the heating mode, the first check valve 81 and the second check valve 82 are closed, and the third check valve 83 and the fourth check valve 84 are opened.

[0074] As Figure 5 As shown (the dotted arrows represent the gaseous and liquid refrigerant, and the solid arrows represent the gaseous refrigerant), in the refrigeration mode, the refrigerant is compressed by the compressor 1 into high-temperature and high-pressure superheated steam. Then the gaseous refrigerant sequentially flows through the outlet end 11 of the compressor 1, the first port 21 of the first four-way valve 2, the second port 22 of the first four-way valve 2, and the outdoor heat exchanger 3, and is liquefied in the outdoor heat exchanger 3 to become high-temperature and high-pressure liquid refrigerant. Then the liquid refrigerant sequentially flows through the first throttling device 5, the first check valve 81, the second interface 72 of the regenerator 7, the first interface 71 of the regenerator 7, the second check valve 82, the second throttling device 6, and the indoor heat exchanger 4, and evaporates and absorbs heat in the indoor heat exchanger 4 to become low-temperature and low-pressure gaseous refrigerant, while reducing the temperature of the surrounding air, thereby realizing refrigeration. Among them, the high-temperature and high-pressure liquid refrigerant becomes high-temperature and low-pressure liquid refrigerant after flowing through the second throttling device 6. Then the gaseous refrigerant sequentially flows through the fourth port 24, the third port 23, the fourth interface 74, the third interface 73, and the inlet end 12 of the compressor 1, and finally enters the compressor 1.

[0075] As Figure 6As shown (the dashed arrows indicate the gaseous-liquid cold refrigerant, and the solid arrows indicate the gaseous refrigerant), in the heating mode, the refrigerant is compressed by the compressor 1 into superheated steam at high temperature and high pressure. Then, the gaseous refrigerant sequentially flows through the outlet end 11 of the compressor 1, the first port 21, the fourth port 24, and the indoor heat exchanger 4, and liquefies and releases heat in the indoor heat exchanger 4 to become a high-temperature and high-pressure liquid refrigerant, which raises the temperature of the surrounding air and thus realizes heating. Then, the liquid refrigerant sequentially flows through the second throttling device 6, the third one-way valve 83, the second interface 72 of the regenerator 7, the first interface 71 of the regenerator 7, the fourth one-way valve 84, the first throttling device 5, the outdoor heat exchanger 3, the second port 22 of the first four-way valve 2, the third port 23 of the first four-way valve 2, the fourth interface 74 of the regenerator 7, the third interface 73 of the regenerator 7, and the inlet end 12 of the compressor 1. Among them, the high-temperature and high-pressure liquid refrigerant becomes a high-temperature and low-pressure liquid refrigerant after flowing through the first throttling device 5.

[0076] As Figure 5 and Figure 6 shown, the flow direction of the refrigerant from the second interface 72 to the first interface 71 of the regenerator 7 is opposite to the flow direction of the refrigerant from the fourth interface 74 to the third interface 73 of the regenerator 7. In this way, in the refrigeration mode, the flow directions of the gaseous refrigerant and the liquid refrigerant in the regenerator 7 are opposite, that is, the gaseous refrigerant and the liquid refrigerant will flow relatively, which is beneficial to the heat exchange between the gaseous refrigerant and the liquid refrigerant in the regenerator 7. Thus, it is beneficial to improve the refrigeration efficiency of the temperature adjustment system and can effectively prevent liquid slugging of the compressor 1.

[0077] In some examples, in the refrigeration mode, the opening degree of the first throttling device 5 is the first opening degree, and the opening degree of the second throttling device 6 is less than the first opening degree. In the heating mode, the opening degree of the second throttling device 6 is the second opening degree, and the opening degree of the first throttling device 5 is less than the second opening degree.

[0078] Among them, the first opening degree can be 100% or less than 100% (such as 95%). Therefore, in the refrigeration mode, the pressure of the refrigerant remains unchanged or changes little after flowing through the first throttling device 5, that is, the refrigerant is still a high-temperature and high-pressure liquid refrigerant after flowing through the first throttling device 5. The pressure of the refrigerant decreases after flowing through the second throttling device 6 and becomes a high-temperature and low-pressure liquid refrigerant.

[0079] The second opening degree can be 100% or less than 100% (such as 95%). Therefore, in the heating mode, the pressure of the refrigerant remains unchanged or changes little after flowing through the second throttling device 6, and the refrigerant is still a high-temperature and high-pressure liquid refrigerant after flowing through the second throttling device 6. The pressure of the refrigerant decreases after flowing through the first throttling device 5 and becomes a high-temperature and low-pressure liquid refrigerant.

[0080] If the second opening degree is less than 100%, a relatively small pressure drop will occur after the refrigerant passes through the second throttling device 6. As a result, a two-phase flow with a relatively low density can be formed between the second throttling device 6 and the second interface 72 of the regenerator 7, which is beneficial to reducing the amount of refrigerant used in the entire system, thereby reducing costs.

[0081] Among them, the opening degree of the second throttling device 6 in the refrigeration mode may be equal to or different from the opening degree of the first throttling device 5 in the heating mode.

[0082] In some examples, the first check valve 81, the second check valve 82, the third check valve 83, and the fourth check valve 84 are all the same, that is, the models, sizes, etc. of the first check valve 81, the second check valve 82, the third check valve 83, and the fourth check valve 84 are all the same. In this way, when assembling the check valve assembly 8 of the temperature regulation system, there is no need to make additional distinctions for each check valve, that is, each check valve can be installed at any one of the four positions, thereby reducing the assembly difficulty of the temperature regulation system.

[0083] In some other examples, as Figure 7 shown, the temperature regulation system further includes a second four-way valve 9. The second four-way valve 9 has a fifth port 91, a sixth port 92, a seventh port 93, and an eighth port 94. The fifth port 91 is connected to the outdoor heat exchanger 3, the sixth port 92, the second throttling device 6, and the second interface 72 are connected in sequence, the seventh port 93 is connected to the indoor heat exchanger 4, and the eighth port 94, the first throttling device 5, and the first interface 71 are connected in sequence. In the refrigeration mode, the fifth port 91 is connected to the sixth port 92, and the eighth port 94 is connected to the seventh port 93. In the heating mode, the fifth port 91 is connected to the eighth port 94, and the sixth port 92 is connected to the seventh port 93.

[0084] As Figure 8As shown (the dashed arrow indicates the gaseous-liquid refrigerant, and the solid arrow indicates the gaseous refrigerant), in the refrigeration mode, the refrigerant is compressed by the compressor 1 into superheated steam at high temperature and high pressure. Then the gaseous refrigerant successively flows through the outlet end 11 of the compressor 1, the first port 21 of the first four-way valve 2, the second port 22 of the first four-way valve 2, and the outdoor heat exchanger 3, and is liquefied in the outdoor heat exchanger 3 to become a high-temperature and high-pressure liquid refrigerant. Then the liquid refrigerant successively flows through the fifth port 91, the sixth port 92, the second throttling device 6, the second interface 72 of the regenerator 7, the first interface 71 of the regenerator 7, the first throttling device 5, the eighth port 94, the seventh port 93, and the indoor heat exchanger 4, and evaporates and absorbs heat in the indoor heat exchanger 4 to become a low-temperature and low-pressure gaseous refrigerant, while reducing the temperature of the surrounding air, thereby achieving refrigeration. Among them, the high-temperature and high-pressure liquid refrigerant becomes a high-temperature and low-pressure liquid refrigerant after flowing through the first throttling device 5. Then the gaseous refrigerant successively flows through the fourth port 24, the third port 23, the fourth interface 74, the third interface 73, and the intake end 12, and finally enters the compressor 1.

[0085] As Figure 9 shown (the dashed arrow indicates the gaseous-liquid refrigerant, and the solid arrow indicates the gaseous refrigerant), in the heating mode, the refrigerant is compressed by the compressor 1 into superheated steam at high temperature and high pressure. Then the gaseous refrigerant successively flows through the outlet end 11 of the compressor 1, the first port 21 of the first four-way valve 2, the fourth port 24 of the first four-way valve 2, and the indoor heat exchanger 4, and is liquefied and releases heat in the indoor heat exchanger 4 to become a high-temperature and high-pressure liquid refrigerant, and increases the temperature of the surrounding condensed air, thereby achieving heating. Then the liquid refrigerant successively flows through the seventh port 93, the sixth port 92, the second throttling device 6, the second interface 72 of the regenerator 7, the first interface 71 of the regenerator 7, the first throttling device 5, the eighth port 94, the fifth port 91, and the outdoor heat exchanger 3, and absorbs heat in the indoor heat exchanger 7 to become a low-temperature and low-pressure gaseous refrigerant. Among them, the high-temperature and high-pressure liquid refrigerant becomes a high-temperature and low-pressure liquid refrigerant after flowing through the first throttling device 5. Then the gaseous refrigerant successively flows through the second port 22, the third port 23, the fourth interface 74, the third interface 73, and the intake end 12.

[0086] As Figure 8 and Figure 9 shown, the flow direction of the refrigerant from the second interface 72 to the first interface 71 of the regenerator 7 is opposite to the flow direction of the refrigerant from the fourth interface 74 to the third interface 73 of the regenerator 7. In this way, whether in the refrigeration mode or the heating mode, convection can be formed between the gaseous refrigerant and the liquid refrigerant, which is beneficial to the heat exchange between the gaseous refrigerant and the liquid refrigerant in the regenerator 7, thereby further improving the refrigeration effect of the temperature regulation system and effectively preventing liquid hammer of the compressor 1.

[0087] In some examples, in the refrigeration mode, the opening degree of the second throttling device 6 is the third opening degree, and the opening degree of the throttling device 5 is less than the third opening degree. In the heating mode, the opening degree of the second throttling device 6 is the fourth opening degree, and the opening degree of the throttling device 5 is less than the fourth opening degree.

[0088] Among them, the third opening degree can be 100% or less than 100% (such as 95%). Therefore, in the refrigeration mode, the pressure of the refrigerant remains unchanged or changes slightly after passing through the second throttling device 6, and it is still a high-temperature and high-pressure liquid refrigerant. The pressure of the refrigerant decreases after passing through the first throttling device 5, changing from a high-temperature and high-pressure liquid refrigerant to a high-temperature and low-pressure liquid refrigerant.

[0089] The fourth opening degree can be 100% or less than 100% (such as 95%). Therefore, in the refrigeration mode, the pressure of the refrigerant remains unchanged or changes slightly after passing through the second throttling device 6, and it is still a high-temperature and high-pressure liquid refrigerant. The pressure of the refrigerant decreases after passing through the first throttling device 5, changing from a high-temperature and high-pressure liquid refrigerant to a high-temperature and low-pressure liquid refrigerant.

[0090] If the third opening degree and the fourth opening degree are less than 100%, a small pressure drop will occur after the refrigerant passes through the second throttling device 6. Thus, a two-phase flow with a lower density can be formed between the second throttling device 6 and the second interface 72 of the regenerator 7, which is beneficial to reducing the refrigerant consumption of the entire system, thereby reducing costs.

[0091] Among them, the opening degree of the first throttling device 5 in the refrigeration mode and in the heating mode can be equal or unequal.

[0092] In some examples, the second four-way valve 9 is the same as the first four-way valve 2, that is, the models, sizes, etc. of the first four-way valve 2 and the second four-way valve 9 are the same. In this way, both the first four-way valve 2 and the second four-way valve 9 can be installed at any one of the two positions, which can reduce the complexity of assembling the temperature adjustment system.

[0093] In some examples, such as Figure 2 and Figure 3 shown, the first interface 71 is opposite to the fourth interface 74, and the second interface 72 is opposite to the third interface 73. In this way, in the regenerator 7, the path of the liquid refrigerant and the path of the gaseous refrigerant are completely opposite, so that the liquid refrigerant and the gaseous refrigerant can exchange more heat. Thus, it is beneficial to improve the refrigeration efficiency of the temperature adjustment system and can effectively prevent liquid slugging of the compressor 1.

[0094] In some examples, such as Figure 2 and Figure 3As shown, the first interface 71 and the second interface 72 of the regenerator 7 are arranged along the length direction of the regenerator 7, and the third interface 73 and the fourth interface 74 of the regenerator 7 are arranged along the length direction of the regenerator 7. In this way, the paths of the liquid refrigerant and the gaseous refrigerant in the regenerator 7 are relatively long, thereby increasing the heat exchange area between the liquid refrigerant and the gaseous refrigerant, enabling the liquid refrigerant and the gaseous refrigerant to exchange more heat, and resulting in a relatively high heat exchange rate between the liquid refrigerant and the gaseous refrigerant. This is beneficial to improving the refrigeration efficiency of the temperature adjustment system and can effectively prevent liquid slugging of the compressor 1.

[0095] The above are only optional embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the principles of the present disclosure shall be included within the protection scope of the present disclosure.

Claims

1. A temperature regulation system, characterized in that, the temperature regulation system has a refrigeration mode and a heating mode, and the temperature regulation system includes a compressor (1), a first four-way valve (2), an outdoor heat exchanger (3), an indoor heat exchanger (4), a first throttling device (5), a second throttling device (6) and a regenerator (7); the first four-way valve (2) has a first port (21), a second port (22), a third port (23) and a fourth port (24), the regenerator (7) has a first interface (71), a second interface (72), a third interface (73) and a fourth interface (74), the first interface (71) and the second interface (72) are communicated, and the third interface (73) and the fourth interface (74) are communicated; the first port (21) is communicated with the air outlet end (11) of the compressor (1); the second port (22), the outdoor heat exchanger (3) and the first throttling device (5) are communicated in sequence, and the first throttling device (5) is also communicated with the first interface (71); the third port (23), the fourth interface (74), the third interface (73) and the air inlet end (12) of the compressor (1) are communicated in sequence; the fourth port (24), the indoor heat exchanger (4) and the second throttling device (6) are communicated in sequence, and the second throttling device (6) is also communicated with the second interface (72); in the refrigeration mode, the first port (21) is communicated with the second port (22), and the third port (23) is communicated with the fourth port (24); in the heating mode, the first port (21) is communicated with the fourth port (24), and the second port (22) is communicated with the third port (23).

2. The temperature regulation system according to claim 1, characterized in that, the temperature regulation system further includes a first check valve (81), a second check valve (82), a third check valve (83) and a fourth check valve (84); both ends of the first check valve (81) are communicated with the first throttling device (5) and the second interface (72), both ends of the second check valve (82) are communicated with the first interface (71) and the second throttling device (6), both ends of the third check valve (83) are communicated with the second throttling device (6) and the second interface (72), and both ends of the fourth check valve (84) are communicated with the first interface (71) and the first throttling device (5); in the refrigeration mode, the first check valve (81) and the second check valve (82) are opened, and the third check valve (83) and the fourth check valve (84) are closed; in the heating mode, the first check valve (81) and the second check valve (82) are closed, and the third check valve (83) and the fourth check valve (84) are opened.

3. The temperature regulation system according to claim 1 or 2, characterized in that, In the refrigeration mode, the opening degree of the first throttling device (5) is a first opening degree, and the opening degree of the second throttling device (6) is less than the first opening degree; In the heating mode, the opening degree of the second throttling device (6) is a second opening degree, and the opening degree of the first throttling device (5) is less than the second opening degree.

4. The temperature regulation system according to claim 1, characterized in that the first check valve (81), the second check valve (82), the third check valve (83) and the fourth check valve (84) are all the same.

5. The temperature regulation system according to claim 1, characterized in that the temperature regulation system further includes a second four-way valve (9), and the second four-way valve (9) has a fifth port (91), a sixth port (92), a seventh port (93) and an eighth port (94); the fifth port (91) is communicated with the outdoor heat exchanger (3), the sixth port (92) is communicated with the second throttling device (6), the seventh port (93) is communicated with the indoor heat exchanger (4), and the eighth port (94) is communicated with the first throttling device (5); In the refrigeration mode, the fifth port (91) is communicated with the sixth port (92), and the eighth port (94) is communicated with the seventh port (93); In the heating mode, the fifth port (91) is communicated with the eighth port (94), and the sixth port (92) is communicated with the seventh port (93).

6. The temperature regulation system according to claim 5, characterized in that In the refrigeration mode, the opening degree of the second throttling device (6) is a third opening degree, and the opening degree of the throttling device (5) is less than the third opening degree; In the heating mode, the opening degree of the second throttling device (6) is a fourth opening degree, and the opening degree of the throttling device (5) is less than the fourth opening degree.

7. The temperature regulation system according to claim 5, characterized in that the second four-way valve (9) is the same as the first four-way valve (2).

8. The temperature regulation system according to claim 2 or 5, characterized in that the flow direction of the refrigerant from the second interface (72) to the first interface (71) is opposite to the flow direction of the refrigerant from the fourth interface (74) to the third interface (73).

9. The temperature regulation system according to claim 8, characterized in that the first interface (71) is opposite to the fourth interface (74), and the second interface (72) is opposite to the third interface (73).

10. The temperature regulation system according to claim 1, characterized in that the first interface (71) and the second interface (72) are arranged along the length direction of the regenerator (7); the third interface (73) and the fourth interface (74) are arranged along the length direction of the regenerator (7).

11. The temperature regulation system according to claim 1 or 2, characterized in that the temperature regulation system is an air conditioner.

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