Cooling device of air conditioning equipment, air conditioning equipment and control method of air conditioning equipment

Abstract

This invention provides a cooling device for an air conditioning unit, an air conditioning unit, and a control method for the air conditioning unit. The cooling device for the air conditioning unit includes: a water collection container connected to the water collection tray of the indoor unit of the air conditioning unit via a pipe to collect condensate from the indoor unit; a heat exchange cover, which can replace the top cover structure of the outdoor unit of the air conditioning unit, and has a jacketed cavity communicating with the water collection container; a water pump disposed between the water collection container and the jacketed cavity to guide the condensate in the water collection container to the jacketed cavity; and a reversing valve, one side of which is connected to the jacketed cavity, and the other side selectively connected to a return water pipe and a drain pipe, the return water pipe communicating with the water collection container, and the drain pipe communicating with the indoor domestic water system or to the outside. According to the solution of this invention, condensate can be recycled and reused, and the adaptability of the air conditioning unit in high-temperature environments can be improved.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to a cooling device for air conditioning equipment, an air conditioning device, and a control method for the air conditioning device. Background Technology

[0002] Air conditioning equipment refrigeration works by compressing gaseous refrigerant into a high-temperature, high-pressure gaseous state using a compressor, and then sending it to the condenser for cooling. After cooling, it becomes a medium-temperature, high-pressure liquid refrigerant. The medium-temperature liquid refrigerant is then throttled and depressurized by a throttling device, resulting in a low-temperature, low-pressure gas or gas-liquid mixture. It then passes through the evaporator, absorbs heat from the air, and vaporizes, becoming a gaseous state. The vapor then returns to the compressor for further compression, continuing the cycle of refrigeration.

[0003] In hot regions, if the outdoor unit of an air conditioner is located in an area with poor air circulation or if the outdoor temperature is high, the heat exchanged by the condenser may not dissipate easily, resulting in poor cooling performance of the indoor unit. For example, when the outdoor temperature exceeds 43 degrees Celsius, most air conditioners struggle to transfer indoor heat to the outside through the outdoor unit's condenser, which can also cause poor or no cooling performance.

[0004] Traditionally, the cooling performance of air conditioning equipment can be improved and energy consumption saved by changing the operating environment of the outdoor unit. For example, moving the outdoor unit away from high-temperature environments or making the air around the outdoor unit more ventilated. However, modifying the operating environment of the outdoor unit often incurs significant costs and is not universally applicable. Summary of the Invention

[0005] This invention provides a cooling device for air conditioning equipment, an air conditioning unit, and a control method for the air conditioning unit. By recycling and utilizing the condensate generated by the air conditioning unit, it solves the problem that the outdoor unit of the air conditioning unit in the prior art is difficult to effectively dissipate heat in hot environments, and realizes a cooling solution that is easy to modify and can improve the adaptability of the air conditioning unit to high-temperature environments.

[0006] This invention provides a cooling device for an air conditioning unit, comprising: a water collection container connected to the water collection tray of the indoor unit of the air conditioning unit via a pipe, for collecting condensate from the indoor unit; a heat exchange top cover, which can replace the top cover structure of the outdoor unit of the air conditioning unit, the heat exchange top cover having a jacketed cavity communicating with the water collection container; a water pump disposed between the water collection container and the jacketed cavity, for guiding the condensate in the water collection container to the jacketed cavity; and a reversing valve, one side of which is connected to the jacketed cavity, and the other side selectively connected to a return water pipe and a drain pipe, the return water pipe communicating with the water collection container, and the drain pipe communicating with an indoor domestic water system or to the outside.

[0007] According to the present invention, a cooling device for an air conditioning unit is provided, wherein the water collection container, water pump and reversing valve are integrated into the housing, and the installation height of the housing is not higher than the indoor unit and not lower than the outdoor unit.

[0008] According to a cooling device for an air conditioning unit provided by the present invention, a water level sensor capable of monitoring the water level in the water collection container is provided inside the water collection container; and / or, the water collection container has a water inlet connected to an external water source.

[0009] According to the present invention, in the case of a cooling device for an air conditioning unit, when the heat exchange top cover is installed on the outdoor unit, the interlayer cavity is located above the condenser of the outdoor unit.

[0010] According to the present invention, a cooling device for an air conditioning unit is provided, wherein a plurality of flow channel walls are provided in the interlayer cavity to form an internal flow channel in the interlayer cavity.

[0011] According to a cooling device for an air conditioning unit provided by the present invention, at least a portion of the flow channel wall extends outside the interlayer cavity to form heat-conducting fins on the side of the heat exchange top cover facing the interior of the outdoor unit.

[0012] According to the present invention, a cooling device for an air conditioning unit has a plurality of internal flow channels formed in the interlayer cavity, and the beginning and / or end of the plurality of internal flow channels are distributed in a stepped manner.

[0013] According to the present invention, a cooling device for an air conditioning unit includes a controller and a water temperature sensor; the water temperature sensor is used to measure the water temperature parameter of the condensate flowing out of the jacket cavity, and the controller controls the reversing valve to connect the return water pipeline or the drain pipeline according to the water temperature parameter.

[0014] According to the present invention, a cooling device for an air conditioning unit includes a room temperature sensor for measuring room temperature parameters; when the water temperature parameter is lower than the room temperature parameter, the controller controls the reversing valve to connect the return water pipe; when the water temperature parameter is higher than or equal to the room temperature parameter, the controller controls the reversing valve to connect the drain pipe.

[0015] The present invention also provides an air conditioning device, including an indoor unit, an outdoor unit, and a cooling device as described in any of the above-mentioned air conditioning devices.

[0016] This invention also provides a control method for an air conditioning device, the control method being used in the air conditioning device as described above, the method comprising: starting the air conditioning device and activating a cooling mode or a dehumidification mode; detecting the water level in the water collection container; if the water level is greater than or equal to the minimum water level, starting a water pump; if the water level is less than the minimum water level, injecting water into the water collection container through an external water source; detecting the water temperature parameter of the condensate flowing out of the interlayer cavity and the room temperature parameter of the indoor environment; if the water temperature parameter is lower than the room temperature parameter, controlling a reversing valve to connect to the return water pipe; if the water temperature parameter is higher than or equal to the room temperature parameter, controlling the reversing valve to connect to the drain pipe.

[0017] This invention provides a cooling device, an air conditioning unit, and a control method for an air conditioning system. The cooling device uses a water collection container to collect condensate generated by the evaporator of the indoor unit during cooling mode. A water pump directs the condensate from the water collection container to the jacketed cavity of the heat exchange cover. Because the condensate has a low temperature, it absorbs heat from the outdoor unit through the heat conduction of the heat exchange cover while flowing in the jacketed cavity, thereby reducing the heat dissipation pressure on the condenser of the air conditioning unit. Through a reversing valve, the condensate after absorbing heat can be either recirculated or introduced into the domestic water system to fully utilize the condensate. Since the water collection container can be connected to the water collection tray of the indoor unit of the air conditioning unit via pipes, and the heat exchange cover can replace the top cover structure of the outdoor unit of the air conditioning unit, the cooling device of this invention can be easily installed in existing air conditioning systems, reducing the difficulty of modification. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram showing the connection relationship between the air conditioning equipment and the cooling device of the air conditioning equipment provided by the present invention;

[0020] Figure 2 This is a cross-sectional structural diagram of the heat exchange top cover of the cooling device of the air conditioning equipment provided by the present invention.

[0021] Figure label:

[0022] 101: Indoor unit; 102: Outdoor unit; 103: Casing; 110: Water collection container; 111: Water level sensor; 112: Water inlet; 120: Heat exchanger top cover; 121: Jacketed cavity; 122: Flow channel wall; 123: Internal flow channel; 130: Water pump; 140: Reversing valve; 141: Return water pipe; 142: Drain pipe; 143: Water temperature sensor; 201: Fan bracket; 202: Fan motor; 203: Fan; 204: Condenser; 205: Electrical control box; 206: Compressor. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0024] In cooling mode, the evaporator surface temperature of an air conditioner is typically between 7°C and 12°C, resulting in a condensate temperature of approximately 10°C to 15°C. This temperature is relatively low, and the higher the humidity in the air, the more condensate is produced. In hot and humid regions, a large amount of condensate forms on the evaporator surface during air conditioner operation, flowing out through a collection pan below the evaporator. This invention improves the internal temperature environment of the outdoor unit by using this condensate to cool the top cover structure, thereby increasing the condenser's heat exchange efficiency, reducing the outdoor unit's operating load, and enhancing the air conditioner's adaptability to high-temperature environments.

[0025] The following is combined with Figure 1 This invention describes an air conditioning device and its cooling apparatus according to a preferred embodiment of the present invention.

[0026] like Figure 1 As shown, the outdoor unit 102 of the air conditioning equipment includes a fan bracket 201, a fan motor 202, a fan 203, a condenser 204, an electrical control box 205, and a compressor 206, all housed within the outdoor unit body. These components are separated by a partition structure, with the fan bracket 201, fan motor 202, fan 203, and condenser 204 located on one side of the partition structure, and the electrical control box 205 and compressor 206 located on the other side.

[0027] The cooling device of the air conditioning equipment includes a heat exchange cover 120 that can replace the top cover structure of the outdoor unit 102, and a water collection container 110, a water pump 130, a water temperature sensor 143, and a reversing valve 140 integrated in the housing 103. The water collection container 110 is connected to the water collection pan of the indoor unit 101 of the air conditioning equipment through a pipeline so that the condensate collected in the water collection pan can enter the water collection container 110. The water pump 130 can pump out the condensate stored in the water collection container 110 so that the condensate flows through the jacket cavity 121 in the heat exchange cover 120 and exchanges heat with the air in the outdoor unit 102 during the flow, thereby removing heat from the outdoor unit 102 and improving the heat exchange environment of the condenser 204. The water collection container 110 is equipped with a water level sensor 111 and a water inlet 112 connected to an external water source. When the water level sensor 111 detects that the water level in the water collection container 110 is insufficient, water is supplied to the water inlet 112 through an external water source, thereby ensuring the operating conditions of the cooling device.

[0028] The condensate that has undergone heat exchange in the jacket cavity 121 then passes through a water temperature sensor 143 to monitor the temperature change of the condensate in real time. Based on the water temperature parameters after the condensate absorbs heat, the reversing valve 140 is controlled to operate. Specifically, when the water temperature parameter is low, the reversing valve 140 connects to the return water pipe 141 so that the condensate continues to participate in the cooling cycle; when the water temperature parameter is high, the reversing valve connects to the drain pipe 142 to discharge the condensate that is not suitable for participating in the cooling cycle to the outside. Alternatively, the drain pipe 142 can be connected to the indoor domestic water system for use as domestic hot water, thus making full use of the condensate.

[0029] According to the solution of the present invention, it is possible to both recycle and reuse condensate, reduce the operating load of the outdoor unit, and improve the heat exchange efficiency of the condenser. Moreover, by connecting the water collection container 110 to the water collection pan of the indoor unit 101, and replacing the top cover structure of the outdoor unit 102 with the heat exchange top cover 120, the existing air conditioning equipment can be modified. The modification cost is low and the difficulty is small, making it easy to popularize and apply.

[0030] To better understand the technical solution of the present invention, the following is in conjunction with... Figure 1 and Figure 2 The present invention also describes in detail the various specific embodiments of the present invention, including the cooling device, air conditioning equipment, and control method of the air conditioning equipment provided by the present invention.

[0031] A cooling device for an air conditioning unit according to the present invention includes: a water collection container 110, which is connected to the water collection tray of the indoor unit 101 of the air conditioning unit via a pipeline to collect condensate from the indoor unit 101; a heat exchange top cover 120, which can replace the top cover structure of the outdoor unit 102 of the air conditioning unit, and the heat exchange top cover 120 has a cavity 121 communicating with the water collection container 110; a water pump 130, which is disposed between the water collection container 110 and the cavity 121 to guide the condensate in the water collection container 110 to the cavity 121; and a reversing valve 140, one side of which is connected to the cavity 121, and the other side is selectively connected to a return water pipeline 141 and a drain pipeline 142, wherein the return water pipeline 141 communicates with the water collection container 110, and the drain pipeline 142 communicates with an indoor domestic water system or to the outside.

[0032] The cooling device's water collection container 110 collects the condensate generated by the evaporator of the indoor unit 101 in cooling mode. A water pump 130 directs the condensate from the water collection container 110 to the jacketed cavity 121 of the heat exchange cover 120. Because the condensate has a low temperature, as it flows through the jacketed cavity 121, it absorbs heat from the outdoor unit 102 through the heat conduction of the heat exchange cover 120, thereby reducing the heat dissipation pressure on the condenser of the air conditioning equipment. Through a reversing valve, the condensate after absorbing heat can be either recirculated or introduced into the domestic water system to fully utilize the condensate. Therefore, this invention solves the problem of ineffective heat dissipation by the outdoor unit of air conditioning equipment in hot environments, thus improving the high-temperature adaptability of air conditioning equipment.

[0033] Depending on the model of the air conditioning equipment, the heat exchange cover 120 of the cooling device has a shape and installation structure adapted to the corresponding model of the outdoor unit. The heat exchange cover 120 is made entirely of thermally conductive material, or preferably, the side of the heat exchange cover 120 facing the interior of the outdoor unit 102 is made of thermally conductive material, thereby improving the heat exchange efficiency of the condensate flowing in the jacket cavity 121.

[0034] According to the present invention, a cooling device for an air conditioning unit is provided, wherein the water collection container 110, the water pump 130 and the reversing valve 140 are preferably integrated in the housing 103, thereby giving the cooling device a higher degree of integration and reducing the difficulty of installing the cooling device on existing air conditioning equipment.

[0035] Furthermore, the installation height of the casing 103 is not higher than that of the indoor unit 101 and not lower than that of the outdoor unit 102, so as to prevent condensate from flowing back into the room when the cooling device is not in operation.

[0036] According to the present invention, a cooling device for an air conditioning unit is provided, wherein a water level sensor 111 capable of monitoring the water level in the water collection container 110 is preferably provided in the water collection container 110; and / or, the water collection container 110 has a water inlet 112 connected to an external water source.

[0037] The water level sensor 111 monitors whether the water level in the collection container 110 meets the operating requirements of the cooling device, preventing the water pump 130 from running dry when the water level is too low. On the other hand, to regulate the temperature environment inside the outdoor unit 102 even when the collected condensate is low, water can be supplied to the water inlet 112 from an external water source, such as a tap water system. The water inlet 112 is preferably equipped with a valve, and the water level sensor 111 can be linked to this valve via a controller. When the water level in the collection container 110 is low, the valve of the water inlet 112 is automatically opened to replenish the water using an external source.

[0038] In the various components of the outdoor unit 102 of the air conditioning equipment, the fan bracket 201, fan motor 202, fan 203, and condenser 204 are typically located on one side of the partition structure, while the electrical control box 205 and compressor 206 are located on the other side of the partition structure. According to the cooling device for an air conditioning equipment provided by the present invention, when the heat exchange top cover 120 is installed on the outdoor unit 102, the interlayer cavity 121 is located above the condenser 204 of the outdoor unit 102.

[0039] Because low-temperature condensate flows in the interlayer cavity 121 of the heat exchange top cover 120, the surface temperature of the heat exchange top cover 120 is much lower than the air temperature inside the outdoor unit 102. When the air humidity is high, condensate is also easily generated on the surface of the heat exchange top cover 120. To prevent condensate from the surface of the heat exchange top cover 120 from entering the electrical control box 205, when the heat exchange top cover 120 is installed on the outdoor unit 102, the interlayer cavity 121 is preferably located above the condenser 204 of the outdoor unit 102 and away from directly above the electrical control box 205 to improve safety.

[0040] like Figure 2 The diagram shown is a cross-sectional view of the heat exchange cover 120 from a top view. As the condensate flows from the inlet to the outlet of the interlayer cavity 121, the flowing condensate is distributed in the interlayer cavity 121, and absorbs heat from the outdoor unit 102 through the heat conduction effect of the heat exchange cover 120.

[0041] In a preferred embodiment, the cooling device for an air conditioning system according to the present invention includes a plurality of flow channel walls 122 within the interlayer cavity 121 to form internal flow channels 123 within the interlayer cavity 121. The flow channel walls 122 restrict the flow state of condensate within the interlayer cavity 121, preventing uneven local flow velocity and thus ensuring optimal heat absorption. The internal flow channels 123 are preferably curved or bendable to increase the flow distance of condensate within the internal flow channels 123, thereby improving heat absorption efficiency. Furthermore, the flow of condensate along the flow channel walls 122 increases the contact area between the condensate and the heat exchange top cover 120, further improving heat exchange efficiency.

[0042] According to a cooling device for an air conditioning unit provided by the present invention, at least a portion of the aforementioned flow channel wall 122 extends outside the interlayer cavity 121 to form heat-conducting fins on the side of the heat exchange top cover 120 facing the interior of the outdoor unit 102. The heat-conducting fins increase the contact area between the heat exchange top cover 120 and the air inside the outdoor unit 102, thereby allowing the heat from the higher-temperature air to be more quickly conducted to the lower-temperature heat exchange top cover 120, where it is then absorbed and cooled by the condensate. Alternatively, a portion of the aforementioned internal flow channel 123 may also be constructed from a bent copper tube protruding from the heat exchange top cover 120 to utilize the high thermal conductivity of the copper tube to improve the heat exchange effect.

[0043] According to the cooling device of an air conditioning unit provided by the present invention, a plurality of internal flow channels 123 are preferably formed in the interlayer cavity 121, and the beginning and / or end of the plurality of internal flow channels 123 are distributed in a stepped manner. The condensate entering the interlayer cavity 121 enters the plurality of internal flow channels 123 respectively, so that the area of ​​the heat exchange top cover 120 radiated by the interlayer cavity 121 can be uniformly heat exchanged.

[0044] Preferably, such as Figure 2 As shown, in the area where the internal flow channel 123 turns, the flow channel wall 122 is broken, so that the condensate in the multiple internal flow channels 123 in the turning area can converge and mix, ensuring that the condensate in the multiple internal flow channels 123 maintains a relatively uniform temperature during the flow of the condensate in the interlayer cavity 121.

[0045] A cooling device for an air conditioning system according to the present invention includes a controller (not shown) and a water temperature sensor 143. For example... Figure 1 As shown, the water temperature sensor 143 is used to measure the water temperature parameters of the condensate flowing out of the interlayer cavity 121. The controller controls the reversing valve 140 to connect the return water pipe 141 or the drain pipe 142 according to the water temperature parameters. For example, when the water temperature parameters are high, the condensate is difficult to continue to be used as a cooling medium, so it is discharged through the drain pipe 142; when the water temperature parameters are low, the condensate can return to the water collection container 110 through the return water pipe 141, thereby continuing to participate in the cooling process and making full use of the low temperature advantage of the condensate generated by the air conditioning equipment.

[0046] The controller can determine the water temperature parameter based on a preset rated temperature value, or by comparing it with other temperature parameters. According to the present invention, a cooling device for an air conditioning unit preferably includes a room temperature sensor for measuring the room temperature parameter. When the water temperature parameter is lower than the room temperature parameter, the controller controls the reversing valve 140 to connect to the return water pipe 141; when the water temperature parameter is higher than or equal to the room temperature parameter, the controller controls the reversing valve 140 to connect to the drain pipe 142.

[0047] The present invention also provides an air conditioning device, such as... Figure 1 As shown, the air conditioning unit includes an indoor unit 101, an outdoor unit 102, and a cooling device according to any of the embodiments described above. Depending on the model of the air conditioning unit, the heat exchange cover 120 of the cooling device has a shape and installation structure adapted to the corresponding model of the outdoor unit. During the cooling mode operation of the air conditioning unit, the cooling device uses condensate generated in the indoor unit 101 to cool the heat exchange cover 120, thereby improving the internal temperature environment of the outdoor unit 102, increasing the heat exchange efficiency of the condenser 204, reducing the operating load of the outdoor unit 102, and ultimately improving the high-temperature environmental adaptability of the air conditioning unit.

[0048] In the outdoor unit 102 of the air conditioning equipment, the fan motor 202, as a power output component, also generates heat during operation. Furthermore, if the fan motor 202 overheats, it may cause malfunction or damage. Preferably, such as... Figure 1 As shown, a heat exchange top cover 120 of the cooling device and a fan bracket 201 are preferably provided with an elastic pad of thermally conductive material, or thermally conductive adhesive is filled in the gap between the two, so that the heat generated by the fan motor 202 can be directly conducted to the lower surface of the heat exchange top cover 120 through the fan bracket 201, thereby achieving efficient absorption of the heat of the fan motor 202.

[0049] In response to the aforementioned air conditioning equipment, the present invention also provides a control method for the air conditioning equipment, comprising: starting the air conditioning equipment and activating the cooling mode or dehumidification mode; detecting the water level in the water collection container 110; if the water level is greater than or equal to the minimum water level, starting the water pump 130; if the water level is less than the minimum water level, injecting water into the water collection container 110 through an external water source; detecting the water temperature parameters of the condensate flowing out of the interlayer cavity 121 and the room temperature parameters of the indoor environment; if the water temperature parameters are lower than the room temperature parameters, controlling the reversing valve 140 to connect the return water pipe 141; if the water temperature parameters are higher than or equal to the room temperature parameters, controlling the reversing valve 140 to connect the drain pipe 142.

[0050] According to the present invention, the cooling device, air conditioning equipment, and control method of the air conditioning equipment, the cooling device collects condensate water generated by the evaporator of the indoor unit 101 in cooling mode via a water collection container 110, and a water pump 130 guides the condensate water from the water collection container to the jacket cavity 121 of the heat exchange top cover 120. Because the condensate water has a low temperature, during its flow in the jacket cavity 121, it can absorb heat from the outdoor unit 102 through the heat conduction effect of the heat exchange top cover 120, thereby reducing the heat dissipation pressure of the condenser 204 of the air conditioning equipment. The controller controls the reversing valve 140 based on the comparison of water temperature parameters and room temperature parameters. The condensate water, after absorbing heat, can be either recirculated or introduced into the domestic water system to achieve full utilization of the condensate water. Since the water collection container 110 can be connected to the water collection tray of the indoor unit 101 of the air conditioning equipment through a pipeline, and the heat exchange top cover 120 can replace the original top cover structure of the outdoor unit 102 of the air conditioning equipment, the cooling device of the air conditioning equipment of the present invention can be easily installed in the existing air conditioning equipment, with low modification difficulty and cost, and has high applicability.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cooling device for an air conditioning unit, characterized in that, include: A water collection container (110) is connected to the water collection tray of the indoor unit (101) of the air conditioning equipment via a pipe so as to collect condensate from the indoor unit (101); A heat exchange top cover (120) is available to replace the top cover structure of the outdoor unit (102) of the air conditioning equipment. The heat exchange top cover (120) has a double-layer cavity (121) connected to the water collection container (110). A water pump (130) is disposed between the water collection container (110) and the interlayer cavity (121) to guide the condensate in the water collection container (110) to the interlayer cavity (121); A reversing valve (140) is provided, one side of which is connected to the interlayer cavity (121), and the other side is optionally connected to the return water pipe (141) and the drain pipe (142). The return water pipe (141) is connected to the water collection container (110), and the drain pipe (142) is connected to the indoor domestic water system or to the outside. The interlayer cavity (121) is provided with multiple flow channel walls (122) to form an internal flow channel (123) within the interlayer cavity (121); At least a portion of the flow channel wall (122) extends outside the interlayer cavity (121) to form heat-conducting fins on the side of the heat exchange top cover (120) facing the interior of the outdoor unit (102); The interlayer cavity (121) has a plurality of internal flow channels (123) formed therein, and the beginning and / or end of the plurality of internal flow channels (123) are distributed in a stepped manner.

2. The cooling device for air conditioning equipment according to claim 1, characterized in that, The water collection container (110), water pump (130) and reversing valve (140) are integrated in the housing (103), and the installation height of the housing (103) is not higher than the indoor unit (101) and not lower than the outdoor unit (102).

3. The cooling device for air conditioning equipment according to claim 1, characterized in that, The water collection container (110) is equipped with a water level sensor (111) capable of monitoring the water level in the water collection container (110); and / or, the water collection container (110) has a water inlet (112) connected to an external water source.

4. The cooling device for air conditioning equipment according to claim 1, characterized in that, When the heat exchange top cover (120) is installed on the outdoor unit (102), the interlayer cavity (121) is located above the condenser (204) of the outdoor unit (102).

5. The cooling device for an air conditioning system according to any one of claims 1-4, characterized in that, Includes a controller and a water temperature sensor (143); The water temperature sensor (143) is used to measure the water temperature parameters of the condensate flowing out of the interlayer cavity (121), and the controller controls the reversing valve (140) to connect the return water pipeline (141) or the drain pipeline (142) according to the water temperature parameters.

6. The cooling device for air conditioning equipment according to claim 5, characterized in that, Includes a room temperature sensor for measuring room temperature parameters; When the water temperature parameter is lower than the room temperature parameter, the controller controls the reversing valve (140) to connect to the return water pipe (141); When the water temperature parameter is higher than or equal to the room temperature parameter, the controller controls the reversing valve (140) to connect to the drain pipe (142).

7. An air conditioning device, characterized in that, Includes an indoor unit (101), an outdoor unit (102), and a cooling device for an air conditioning system as described in any one of claims 1-6.

8. A control method for an air conditioning device, characterized in that, The control method is used in the air conditioning equipment according to claim 7, and the method includes: Turn on the air conditioning equipment and switch to cooling or dehumidification mode; Detect the water level in the water collection container (110); If the water level is greater than or equal to the minimum water level, the water pump (130) will be started. If the water level is lower than the minimum water level, water will be injected into the water collection container (110) through an external water source; The water temperature parameters of the condensate flowing out of the interlayer cavity (121) and the room temperature parameters of the indoor environment were measured. When the water temperature parameter is lower than the room temperature parameter, the reversing valve (140) is controlled to connect to the return water pipe (141); When the water temperature parameter is higher than or equal to the room temperature parameter, the reversing valve (140) is controlled to connect to the drain pipe (142).

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