Air conditioning system

Abstract

The utility model provides an air-conditioning system, which comprises a circulation assembly, an air-conditioning assembly and a control assembly, the circulation assembly comprises a circulation pipeline, a compressor, an indoor heat exchanger and an outdoor heat exchanger, and the compressor, the indoor heat exchanger and the outdoor heat exchanger are all arranged on the circulation pipeline; the heat recovery assembly comprises a connecting pipeline and a heat supply heat exchanger, an inlet of the connecting pipeline communicates with an outlet of the compressor, an outlet of the connecting pipeline selectively communicates with the indoor heat exchanger or the outdoor heat exchanger, and the heat supply heat exchanger is arranged on the connecting pipeline and used for supplying heat to external equipment. According to the technical scheme, the problems that in the prior art, heat of an outdoor condenser cannot be effectively utilized, and environmental thermal pollution is aggravated can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, and particularly relates to an air conditioning system. Background Art

[0002] In summer, the condensation temperature of the outdoor unit of the air conditioner is relatively high. The heat of the condenser can be blown out through the fan of the outdoor unit, and the temperature of the blown hot air flow also increases as the temperature of the condenser rises. This part of the heat is directly discharged outdoors, which not only causes a large amount of energy waste, but also leads to an increase in the surrounding environmental temperature, causing serious environmental heat pollution and further aggravating the "heat island effect". Content of the Utility Model

[0003] The utility model provides an air conditioning system to solve the problem that the heat of the outdoor condenser in the prior art cannot be effectively utilized, which aggravates the environmental heat pollution.

[0004] The utility model provides an air conditioning system, which includes: a circulation component, including a circulation pipeline, a compressor, an indoor heat exchanger and an outdoor heat exchanger, and the compressor, the indoor heat exchanger and the outdoor heat exchanger are all arranged on the circulation pipeline; a heat recovery component, including a connection pipeline and a heat supply heat exchanger, the inlet of the connection pipeline is communicated with the outlet of the compressor, the outlet of the connection pipeline is selectively communicated with the indoor heat exchanger or the outdoor heat exchanger, and the heat supply heat exchanger is arranged on the connection pipeline, and the heat supply heat exchanger is used for heating external equipment.

[0005] Further, the circulation pipeline includes a first heat exchange pipeline and a second heat exchange pipeline, the indoor heat exchanger is arranged on the first heat exchange pipeline, and the outdoor heat exchanger is arranged on the second heat exchange pipeline.

[0006] Further, the circulation component further includes a four-way valve, the four-way valve has a high-pressure inlet, a first switching port, a second switching port and a low-pressure outlet, the outlet of the compressor is communicated with the high-pressure inlet, the low-pressure outlet is communicated with the inlet of the compressor, one end of the first heat exchange pipeline is communicated with the first switching port, the other end of the first heat exchange pipeline is communicated with one end of the second heat exchange pipeline, and the other end of the second heat exchange pipeline is communicated with the second switching port.

[0007] Further, the air conditioning system further includes a first reversing valve, the first reversing valve is arranged at the connection part of the first heat exchange pipeline and the second heat exchange pipeline, and the first reversing valve is respectively communicated with the first heat exchange pipeline, the second heat exchange pipeline and the outlet of the connection pipeline.

[0008] Further, the air conditioning system further includes a second reversing valve, the second reversing valve is respectively communicated with the outlet of the compressor, the high-pressure inlet and the inlet of the connection pipeline, and the compressor is selectively communicated with the four-way valve and / or the connection pipeline through the second reversing valve.

[0009] Further, the cooling assembly further includes a check valve, and the check valve is disposed on the connecting pipeline and downstream of the heat supply heat exchanger.

[0010] Further, the air-conditioning system further includes a first electronic expansion valve and a second electronic expansion valve. The first electronic expansion valve is disposed between the heat supply heat exchanger and the check valve, and the second electronic expansion valve is disposed on the first heat exchange pipeline and between the indoor heat exchanger and the first reversing valve.

[0011] Further, the air-conditioning system further includes a plurality of solenoid valves, and the plurality of solenoid valves are respectively disposed on the pipelines communicating the second reversing valve and the four-way valve, between the second reversing valve and the heat supply heat exchanger, and between the first reversing valve and the outdoor heat exchanger.

[0012] Further, a temperature detection component is disposed on the heat supply heat exchanger, and the temperature detection component is electrically connected to the first electronic expansion valve. The temperature detection component is used for detecting the heat exchange temperature in the heat supply heat exchanger.

[0013] Further, the indoor heat exchanger and the outdoor heat exchanger are finned heat exchangers.

[0014] Applying the technical solution of the present utility model, the high-temperature refrigerant in the compressor flows through the connecting pipeline to the heat supply heat exchanger, exchanges heat with the heat supply heat exchanger to reduce the temperature of the refrigerant, and then can flow through the outdoor heat exchanger for further cooling to become a low-temperature refrigerant, and then flows through the indoor heat exchanger for heat exchange to become a high-temperature refrigerant, and finally flows back to the compressor through the circulation pipeline to complete the circulation of the refrigerant. When the temperature of the medium to be heated in the heat supply heat exchanger is relatively low, at this time, the heat supply heat exchanger can act as the outdoor heat exchanger, and the temperature of the refrigerant flowing through the heat supply heat exchanger is reduced by means of heat exchange. Through the above settings, when the air-conditioning system needs to cool the indoor environment, the heat recovery component can absorb a part of the heat of the refrigerant, thereby reducing the heat emission of the outdoor heat exchanger and reducing the heat pollution to the surrounding environment. At the same time, after the heat supply heat exchanger exchanges heat with the refrigerant, it can also heat other devices, thus improving the energy utilization rate of the air-conditioning system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0016] Figure 1 shows a schematic diagram of the refrigerant flow path when the air-conditioning system provided by the present utility model is in the heating and cooling modes;

[0017] Figure 2 shows a schematic diagram of the refrigerant flow path when the air-conditioning system provided by the present utility model is in the heating and heating modes;

[0018] Figure 3 Shows a schematic diagram of the refrigerant flow path when the air-conditioning system provided by the present utility model is in the cooling mode;

[0019] Figure 4 Shows a schematic diagram of the refrigerant flow path when the air-conditioning system provided by the present utility model is in the heating mode;

[0020] Figure 5 Shows a schematic diagram of the refrigerant flow path when the air-conditioning system provided by the present utility model is in the heat supply mode.

[0021] Among them, the above-mentioned drawings include the following reference numerals:

[0022] 10. Circulation pipeline;

[0023] 11. First heat exchange pipeline; 12. Second heat exchange pipeline;

[0024] 20. Compressor;

[0025] 30. Indoor heat exchanger;

[0026] 40. Outdoor heat exchanger;

[0027] 50. Connection pipeline;

[0028] 60. Heat supply heat exchanger;

[0029] 70. Four-way valve;

[0030] 71. High-pressure inlet; 72. First switching port; 73. Second switching port; 74. Low-pressure outlet;

[0031] 81. First reversing valve; 82. Second reversing valve;

[0032] 83. Check valve;

[0033] 84. First electronic expansion valve; 85. Second electronic expansion valve;

[0034] 86. Solenoid valve. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present utility model and its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0036] As Figures 1 to 5 shown, an embodiment of the present utility model provides an air conditioning system, which includes a circulation component and a heat recovery component. Among them, the circulation component includes a circulation pipeline 10, a compressor 20, an indoor heat exchanger 30, and an outdoor heat exchanger 40. The compressor 20, the indoor heat exchanger 30, and the outdoor heat exchanger 40 are all arranged on the circulation pipeline 10, and the above components cooperate to achieve the adjustment of the indoor temperature. The heat recovery component includes a connection pipeline 50 and a heating heat exchanger 60. The inlet of the connection pipeline 50 is communicated with the outlet of the compressor 20, and the outlet of the connection pipeline 50 is selectively communicated with the indoor heat exchanger 30 or the outdoor heat exchanger 40. The heating heat exchanger 60 is arranged on the connection pipeline 50, and the heating heat exchanger 60 is used to supply heat to external equipment. Among them, the indoor heat exchanger 30 and the outdoor heat exchanger 40 can be an evaporator or a condenser, which can be adjusted according to different modes.

[0037] Applying the technical solution of the present utility model, the high-temperature refrigerant in the compressor 20 flows through the connection pipeline 50 to the heating heat exchanger 60, exchanges heat with the heating heat exchanger 60 to reduce the temperature of the refrigerant, and then can flow through the outdoor heat exchanger 40 for further cooling to become a low-temperature refrigerant, and then flows through the indoor heat exchanger 30 for heat exchange to become a high-temperature refrigerant, and finally flows back to the compressor 20 through the circulation pipeline 10 to complete the circulation of the refrigerant. When the temperature of the medium to be heated in the heating heat exchanger 60 is relatively low, at this time, the heating heat exchanger 60 can act as the outdoor heat exchanger 40, and the temperature of the refrigerant flowing through the heating heat exchanger is reduced by means of heat exchange. Through the above settings, when the air conditioning system needs to cool the indoor environment, the heat recovery component can absorb part of the heat of the refrigerant, thereby reducing the heat emission of the outdoor heat exchanger 40 and reducing the heat pollution to the surrounding environment. At the same time, after the heating heat exchanger 60 exchanges heat with the refrigerant, it can also heat other equipment, thus improving the energy utilization rate of the air conditioning system.

[0038] Among them, the heating heat exchanger 60 has a refrigerant channel and a heat exchange channel. The refrigerant channel has a refrigerant inlet and a refrigerant outlet, and both the refrigerant inlet and the refrigerant outlet are communicated with the connection pipeline 50. The refrigerant channel is used to exchange heat with the heat exchange channel, and the refrigerant in the refrigerant channel can heat the medium in the heat exchange channel. After heat exchange, the refrigerant becomes a low-temperature refrigerant and then enters the indoor heat exchanger 30 through the circulation pipeline 10.

[0039] In this solution, there is no limitation on the equipment for which the heating heat exchanger 60 is used. In this embodiment, the heating heat exchanger 60 heats a water tank to provide domestic hot water, and can also heat gas or other fluids according to different usage scenarios.

[0040] Specifically, the circulation pipeline 10 includes a first heat exchange pipeline 11 and a second heat exchange pipeline 12. The indoor heat exchanger 30 is arranged on the first heat exchange pipeline 11, and the outdoor heat exchanger 40 is arranged on the second heat exchange pipeline 12. In this way, the indoor circulation path and the outdoor circulation path are separately arranged, making the layout of the air-conditioning system pipeline more reasonable.

[0041] Furthermore, the circulation component further includes a four-way valve 70. The four-way valve 70 has a high-pressure inlet 71, a first switching port 72, a second switching port 73, and a low-pressure outlet 74. The outlet of the compressor 20 is communicated with the high-pressure inlet 71, the low-pressure outlet 74 is communicated with the inlet of the compressor 20, one end of the first heat exchange pipeline 11 is communicated with the first switching port 72, the other end of the first heat exchange pipeline 11 is communicated with one end of the second heat exchange pipeline 12, and the other end of the second heat exchange pipeline 12 is communicated with the second switching port 73. By setting the four-way valve 70, the connection and disconnection between the first heat exchange pipeline 11 and the second heat exchange pipeline 12 and the compressor 20 can be controlled by controlling the four-way valve 70. Compared with setting multiple control valves on multiple pipelines respectively, the above setting of the present application can reduce the number of control valve components and circulation pipelines in the air-conditioning system, simplify the pipeline layout of the air-conditioning system, and improve the accuracy and convenience of control operations at the same time.

[0042] Among them, the air-conditioning system further includes a first reversing valve 81. The first reversing valve 81 is arranged at the connection of the first heat exchange pipeline 11 and the second heat exchange pipeline 12. The first reversing valve 81 is respectively communicated with the first heat exchange pipeline 11, the second heat exchange pipeline 12, and the outlet of the connecting pipeline 50. In this way, the refrigerant can flow from the connecting pipeline 50 and the second heat exchange pipeline 12 into the first heat exchange pipeline 11, or flow from the connecting pipeline 50 and the first heat exchange pipeline 11 into the second heat exchange pipeline 12, or only connect two of the above three pipelines, so as to realize the switching of different modes of indoor temperature adjustment of the air-conditioning system. By setting the first reversing valve 81, the setting of the circulation pipeline can be simplified, so that the refrigerant can flow smoothly between the first heat exchange pipeline 11, the second heat exchange pipeline 12, and the connecting pipeline 50. And it can improve the convenience of switching and controlling the refrigerant circulation path, and then improve the convenience of controlling the indoor temperature of the air-conditioning system, and improve the operability of the air-conditioning system.

[0043] In the present application, the specific type of the first reversing valve 81 is not limited. In this embodiment, the air-conditioning system has one outdoor heat exchanger 40 and one indoor heat exchanger 30, so the first reversing valve 81 has three connecting pipes. In other embodiments of the present application, if it includes one outdoor heat exchanger and two indoor heat exchangers 30, the first reversing valve will have four connecting pipes. Just select a suitable reversing valve according to different working conditions.

[0044] Specifically, the air conditioning system further includes a second reversing valve 82. The second reversing valve 82 is respectively connected to the outlet of the compressor 20, the high-pressure inlet 71, and the inlet of the connecting pipeline 50. The compressor 20 can be selectively connected to the four-way valve 70 or the connecting pipeline 50 through the second reversing valve 82, or the compressor 20 can be simultaneously connected to the four-way valve 70 and the connecting pipeline 50 through the second reversing valve 82, and it can be selected according to the actual demand of the indoor temperature. In this way, the convenience and flexibility of operation are improved.

[0045] And in the above setting, when the temperature of the medium to be heated in the heating heat exchanger 60 is relatively low, the heating heat exchanger 60 can absorb more heat of the refrigerant. After exchanging heat with the heating heat exchanger 60, the temperature of the refrigerant can meet the refrigeration demand. At this time, the heating heat exchanger 60 can replace the outdoor heat exchanger 40. Through the second reversing valve 82, the outlet of the compressor 20 is only connected to the inlet of the connecting pipeline 50, and the refrigerant only needs to flow through the heating heat exchanger 60 and then can be directly introduced into the indoor heat exchanger 30 to cool the room. When the temperature of the medium to be heated in the heating heat exchanger 60 is relatively high, the heating heat exchanger 60 can absorb less heat from the refrigerant. After exchanging heat with the heating heat exchanger 60, the temperature of the refrigerant is still relatively high and cannot meet the refrigeration demand of the air conditioning system alone. At this time, the heating heat exchanger 60 and the outdoor heat exchanger 40 need to work together, and it is only necessary to make the outlet of the compressor 20 be simultaneously connected to the inlet of the connecting pipeline 50 and the high-pressure inlet 71 through the second reversing valve 82.

[0046] In this embodiment, the second reversing valve 82 has three connecting pipes, which are respectively connected to the compressor 20, the connecting pipeline 50, and the four-way valve 70. In other embodiments, it can be adjusted according to the actual working conditions.

[0047] In the present application, the heat recovery assembly further includes a check valve 83. The check valve 83 is arranged on the connecting pipeline 50 and is located downstream of the heating heat exchanger 60. Through the above setting, it can be avoided that the refrigerant in other pipelines flows into the connecting pipeline 50 and collides and mixes with the refrigerant in the connecting pipeline 50, which affects the normal flow path and heat exchange work of the refrigerant in the connecting pipeline 50, and at the same time ensures the normal discharge and circulation of the refrigerant at the outlet of the compressor 20.

[0048] Among them, the air conditioning system further includes a first electronic expansion valve 84 and a second electronic expansion valve 85. The first electronic expansion valve 84 is arranged between the heat supply heat exchanger 60 and the check valve 83 to control the refrigerant flow rate in the connecting pipeline 50. In this way, the heat absorbed by the heat supply heat exchanger 60 from the refrigerant is less, and the temperature of the refrigerant after heat exchange with the heat supply heat exchanger 60 cannot separately meet the refrigeration demand of the air conditioning system. When the heat supply heat exchanger 60 and the outdoor heat exchanger 40 need to work together, the flow rate flowing into the control connecting pipeline 50 can be reduced through the first electronic expansion valve 84, so that more refrigerant flows through the outdoor heat exchanger 40 for heat exchange. The second electronic expansion valve 85 is arranged on the first heat exchange pipeline 11 and is located between the indoor heat exchanger 30 and the first reversing valve 81. The second electronic expansion valve 85 can not only adjust the refrigerant flow rate entering the indoor heat exchanger 30, but also change the high-pressure and low-temperature refrigerant after heat exchange in the heat supply heat exchanger 60 or the outdoor heat exchanger 40 into low-temperature and low-pressure refrigerant, which can avoid excessive pressure in the indoor heat exchanger 30 and affect the working stability, and ensure the heat exchange efficiency of the indoor heat exchanger 30.

[0049] Specifically, the air conditioning system further includes a plurality of solenoid valves 86, which are respectively arranged on the pipelines connecting the second reversing valve 82 and the four-way valve 70, between the second reversing valve 82 and the heat supply heat exchanger 60, and between the first reversing valve 81 and the outdoor heat exchanger 40. Through the above settings, the on-off of the refrigerant in different pipelines can be controlled, improving the convenience of controlling each pipeline and making the operation more convenient.

[0050] Furthermore, a temperature detection component is arranged on the heat supply heat exchanger 60. The temperature detection component is electrically connected to the first electronic expansion valve 84 and is used to detect the heat exchange temperature in the heat supply heat exchanger 60. Specifically, the temperature detection component is used to detect the temperature of the medium to be heated in the heat exchange channel. In this way, the opening degree of the first electronic expansion valve 84 can be adjusted according to the temperature in the heat exchange channel, and then the flow rate of the refrigerant flowing into the connecting pipeline 50 can be controlled. In this way, the practicability of the air conditioning system is improved.

[0051] In this solution, the indoor heat exchanger 30 and the outdoor heat exchanger 40 are finned heat exchangers. Compared with other types of heat exchangers, finned heat exchangers can reduce space occupation, improve the heat exchange area and heat exchange efficiency. At the same time, the structure is simple, easy to mass-produce, and the maintenance cost is low.

[0052] Specifically, the air conditioning system provided by this application has five modes, namely heating and refrigeration mode, heating and heating mode, refrigeration mode, heating mode and heating mode.

[0053] Such as Figure 1As shown, when the air conditioning system is in the heating and cooling modes, the solenoid valves 86 on the pipeline connecting the second reversing valve 82 and the four-way valve 70, and the solenoid valves 86 between the first reversing valve 81 and the outdoor heat exchanger 40 are all closed, and the solenoid valve 86 between the second reversing valve 82 and the heating heat exchanger 60 is opened. In this way, the high-temperature and high-pressure gaseous refrigerant generated by the compressor 20 enters the heating heat exchanger 60 through the solenoid valve 86 between the second reversing valve 82 and the heating heat exchanger 60 for heat exchange, and the refrigerant is cooled by the heating heat exchanger 60 into a high-pressure and low-temperature liquid. Then the liquid passes through the second electronic expansion valve 85 for throttling to become a low-temperature and low-pressure liquid, and then the low-temperature and low-pressure liquid enters the indoor heat exchanger 30, and the refrigerant exchanges heat with the air to achieve the refrigeration effect. Subsequently, the high-temperature and low-pressure refrigerant coming out of the indoor heat exchanger 30 returns to the compressor 20 through the four-way valve 70 for commutation, and the cycle repeats, thus achieving the heating and cooling modes.

[0054] As the temperature of the medium to be heated in the heating heat exchanger 60 rises, the heat exchange effect of the heating heat exchanger 60 deteriorates at this time, and the refrigeration effect cannot meet the normal needs of people. When the water temperature reaches the first preset temperature, the temperature of the medium in the heating heat exchanger 60 has met the requirements at this time. At this time, the three solenoid valves 86 are opened, and the high-temperature and high-pressure gaseous refrigerant generated by the compressor 20 is split into two through the second reversing valve 82 and enters the outdoor heat exchanger 40 and the heating heat exchanger 60 respectively for heat exchange through the commutation function of the four-way valve 70. Since the temperature of the medium in the heating heat exchanger 60 is already higher than the first preset temperature, there is no need for too much refrigerant to pass through the heating heat exchanger 60 for heat exchange. At this time, by adjusting the throttling effect of the first electronic expansion valve 84, most of the refrigerant flows through the outdoor heat exchanger 40, so that the refrigerant can be cooled into a high-pressure and low-temperature liquid through the heat exchange of the outdoor heat exchanger 40 and the heating heat exchanger 60. Then the refrigerant coming out of the outdoor heat exchanger 40 and the heating heat exchanger 60 converges, and the converged liquid refrigerant passes through the second electronic expansion valve 85 for throttling to become a low-temperature and low-pressure liquid, and the low-temperature and low-pressure liquid enters the indoor heat exchanger 30 to exchange heat with the air to achieve the refrigeration effect. The high-temperature and low-pressure refrigerant coming out of the indoor heat exchanger 30 returns to the compressor 20 through the four-way valve 70 for commutation, and the cycle repeats. When the temperature detected by the temperature detection component in the heating heat exchanger 60 is lower than the second preset temperature, the temperature of the medium in the heating heat exchanger 60 cannot meet the requirements at this time, then the solenoid valve 86 on the pipeline connecting the second reversing valve 82 and the four-way valve 70 is closed, and the solenoid valve 86 between the first reversing valve 81 and the outdoor heat exchanger 40 and the solenoid valve 86 between the second reversing valve 82 and the heating heat exchanger 60 are opened, so that all the refrigerant flows through the heating heat exchanger 60 for heat exchange, and the medium in the heating heat exchanger 60 is quickly heated up.

[0055] As Figure 2As shown, when the air-conditioning system is turned on to the heating and heat-pumping mode, since the hot air blown out by the indoor heat exchanger 30 and the heat of the medium in the heating heat exchanger 60 in this mode both come from the compression of the compressor 20. Therefore, by adjusting the opening degrees of the first electronic expansion valve 84 and the second electronic expansion valve 85, the high-temperature and high-pressure gaseous refrigerant discharged from the compressor 20 flows into the indoor heat exchanger 30 and the heating heat exchanger 60 as required, so as to ensure that the indoor heat exchanger 30 blows hot air and heats the medium in the heating heat exchanger 60. When the user turns on this mode, the three solenoid valves 86 are opened, and the high-temperature and high-pressure gaseous refrigerant generated by the compressor 20 is divided into two parts through the first electronic expansion valve 84 and the second electronic expansion valve 85. One part of the refrigerant enters the indoor heat exchanger 30 under the commutation action of the four-way valve 70, and one part of the refrigerant directly enters the heating heat exchanger 60 for heat exchange. After being throttled by the first electronic expansion valve 84 and the second electronic expansion valve 85 and then converging, the converged refrigerant enters the outdoor heat exchanger 40 for heat exchange with the air. Subsequently, the high-temperature and low-pressure refrigerant coming out of the outdoor heat exchanger 40 returns to the compressor 20 under the commutation action of the four-way valve 70, and the cycle repeats.

[0056] As Figure 3 shown, when the air-conditioning system is turned on to the cooling mode, when the user turns on this mode, the solenoid valve 86 between the first reversing valve 81 and the outdoor heat exchanger 40 and the solenoid valve 86 on the pipeline connecting the second reversing valve 82 and the four-way valve 70 are opened, and the solenoid valve 86 between the second reversing valve 82 and the heating heat exchanger 60 is closed. At this time, the high-temperature and high-pressure gaseous refrigerant generated by the compressor 20 enters the outdoor heat exchanger 40 under the commutation action of the four-way valve 70 and is cooled into a low-temperature and high-pressure liquid. Subsequently, after being throttled by the second electronic expansion valve 85, it becomes a low-temperature and low-pressure liquid and enters the indoor heat exchanger 30 for heat exchange with the air to achieve the cooling effect. The high-temperature and low-pressure refrigerant coming out of the indoor heat exchanger 30 returns to the compressor 20 under the commutation action of the four-way valve 70, and the cycle repeats.

[0057] As Figure 4 shown, when the user turns on the heating mode, the solenoid valve 86 between the first reversing valve 81 and the outdoor heat exchanger 40 and the solenoid valve 86 on the pipeline connecting the second reversing valve 82 and the four-way valve 70 are opened, and the solenoid valve 86 between the second reversing valve 82 and the heating heat exchanger 60 is closed. At this time, the high-temperature and high-pressure gaseous refrigerant generated by the compressor 20 enters the indoor heat exchanger 30 for heat exchange under the commutation action of the four-way valve 70 to achieve the heating effect, and the refrigerant is cooled into a low-temperature and high-pressure liquid. Subsequently, after being throttled by the second electronic expansion valve 85, it becomes a low-temperature and low-pressure liquid and enters the outdoor heat exchanger 40 for heat exchange with the air. The refrigerant coming out of the outdoor heat exchanger 40 returns to the compressor 20 under the commutation action of the four-way valve 70, and the cycle repeats.

[0058] As Figure 5As shown, when the user turns on the heating mode, the solenoid valve 86 between the second reversing valve 82 and the heating heat exchanger 60 is opened, and the solenoid valves 86 between the first reversing valve 81 and the outdoor heat exchanger 40, and the solenoid valve 86 on the pipeline connecting the second reversing valve 82 and the four-way valve 70 are closed. In this way, the high-temperature and high-pressure gaseous refrigerant generated by the compressor 20 directly enters the heating heat exchanger 60 for heat exchange to achieve the effect of heating the medium. The low-temperature and high-pressure refrigerant then passes through the first electronic expansion valve 84 and throttles into a low-temperature and low-pressure liquid, which enters the outdoor heat exchanger 40 for heat exchange with the air. The high-temperature and low-pressure refrigerant coming out of the outdoor heat exchanger 40 returns to the compressor 20 through the reversing action of the four-way valve 70, and this cycle repeats.

[0059] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0060] Unless otherwise specifically stated, the relative arrangements of the components and steps set forth in these embodiments, numerical expressions, and numerical values do not limit the scope of the present invention. At the same time, it should be understood that for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0061] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Without contrary instructions, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0062] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "beneath" the other devices or structures. Thus, the exemplary term "above" can include both orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations for the spatial relative descriptions used herein will be made accordingly.

[0063] In addition, it should be noted that the use of terms such as "first", "second" etc. to define components is only for the convenience of differentiating the corresponding components. Without additional statements, the above terms have no special meanings, and thus should not be construed as limiting the protection scope of the present utility model.

[0064] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An air conditioning system, characterized in that: The air conditioning system comprises: A circulation component, comprising a circulation pipeline (10), a compressor (20), an indoor heat exchanger (30) and an outdoor heat exchanger (40), wherein the compressor (20), the indoor heat exchanger (30) and the outdoor heat exchanger (40) are all arranged on the circulation pipeline (10); A heat recovery component comprises a connecting pipeline (50) and a heat supply heat exchanger (60), wherein the inlet of the connecting pipeline (50) is connected to the outlet of the compressor (20), and the outlet of the connecting pipeline (50) can be selectively connected to the indoor heat exchanger (30) or the outdoor heat exchanger (40), and the heat supply heat exchanger (60) is arranged on the connecting pipeline (50), and the heat supply heat exchanger (60) is used to supply heat to external equipment.

2. The air conditioning system according to claim 1, characterized in that: The circulation pipeline (10) comprises a first heat exchange pipeline (11) and a second heat exchange pipeline (12); the indoor heat exchanger (30) is arranged on the first heat exchange pipeline (11), and the outdoor heat exchanger (40) is arranged on the second heat exchange pipeline (12).

3. The air conditioning system according to claim 2, characterized in that: The circulation component further comprises a four-way valve (70), the four-way valve (70) having a high-pressure inlet (71), a first switching port (72), a second switching port (73) and a low-pressure outlet (74); the outlet of the compressor (20) is connected to the high-pressure inlet (71), the low-pressure outlet (74) is connected to the inlet of the compressor (20), one end of the first heat exchange pipeline (11) is connected to the first switching port (72), the other end of the first heat exchange pipeline (11) is connected to one end of the second heat exchange pipeline (12), and the other end of the second heat exchange pipeline (12) is connected to the second switching port (73).

4. The air conditioning system according to claim 3, characterized in that: The air conditioning system further comprises a first reversing valve (81), which is arranged at the connection between the first heat exchange pipeline (11) and the second heat exchange pipeline (12), and the first reversing valve (81) is respectively connected to the outlets of the first heat exchange pipeline (11), the second heat exchange pipeline (12) and the connecting pipeline (50).

5. The air conditioning system according to claim 4, characterized in that: The air conditioning system further comprises a second reversing valve (82), the second reversing valve (82) being respectively connected to the outlet of the compressor (20), the high-pressure inlet (71) and the inlet of the connecting pipeline (50), and the compressor (20) can be selectively connected to the four-way valve (70) and / or the connecting pipeline (50) through the second reversing valve (82).

6. The air conditioning system according to claim 4, characterized in that: The heat recovery component further comprises a one-way valve (83), wherein the one-way valve (83) is arranged on the connecting pipeline (50) and is located downstream of the heat supply heat exchanger (60).

7. The air conditioning system according to claim 6, characterized in that: The air conditioning system further comprises a first electronic expansion valve (84) and a second electronic expansion valve (85), wherein the first electronic expansion valve (84) is arranged between the heat supply heat exchanger (60) and the one-way valve (83), and the second electronic expansion valve (85) is arranged on the first heat exchange pipeline (11) and is located between the indoor heat exchanger (30) and the first reversing valve (81).

8. The air conditioning system according to claim 5, characterized in that: The air conditioning system further comprises a plurality of solenoid valves (86), which are respectively arranged on a pipeline connecting the second reversing valve (82) and the four-way valve (70), between the second reversing valve (82) and the heating heat exchanger (60), and between the first reversing valve (81) and the outdoor heat exchanger (40).

9. The air conditioning system according to claim 7, characterized in that: The heat supply heat exchanger (60) is provided with a temperature detection component, the temperature detection component is electrically connected to the first electronic expansion valve (84), and the temperature detection component is used to detect the heat exchange temperature in the heat supply heat exchanger (60).

10. The air conditioning system according to claim 1, characterized in that: The indoor heat exchanger (30) and the outdoor heat exchanger (40) are fin heat exchangers.

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