Outdoor units and HVAC systems

Abstract

This application relates to the field of HVAC system technology, and particularly to an outdoor unit and HVAC system. The heating device includes an inlet pipe assembly, an outlet pipe assembly, and a spray assembly. Both the outlet pipe assembly and the spray assembly are connected to the inlet pipe assembly. The inlet pipe assembly is used to connect to a water source. The spray assembly includes nozzles. When the inlet pipe assembly is connected to the spray assembly, the spray assembly can supply liquid to the cooling unit through the nozzles. When the inlet pipe assembly is connected to the outlet pipe assembly, the outlet pipe assembly can supply heat to the room. In this application, when the outdoor air temperature of the outdoor unit is high, the inlet pipe assembly can connect to the spray assembly, allowing the water source to connect through the inlet pipe assembly to the spray assembly. The nozzles of the spray assembly can supply liquid to the cooling unit, thereby cooling the cooling unit. The spray assembly can utilize the inlet pipe assembly in the heating device, thus reducing installation difficulty.

Description

Technical Field

[0001] This utility model relates to the field of heating, ventilation and air conditioning (HVAC) system technology, and in particular to an outdoor unit and HVAC system. Background Technology

[0002] HVAC systems typically include refrigeration and heating units. The refrigeration unit produces cold air, which is then used to cool the indoor environment through the unit. The heating unit heats liquid, which is then piped into the room to provide warmth. The refrigeration and heating units are housed within the same outdoor unit, resulting in a relatively small system footprint. The refrigeration unit usually includes a condenser to absorb heat from the cooling medium; however, the condenser is highly susceptible to changes in outdoor air temperature. To address the issue of reduced condenser capacity, appropriate cooling devices can be installed to lower its temperature.

[0003] Among the related technologies, installing cooling equipment is relatively difficult. Utility Model Content

[0004] This utility model aims to at least solve one of the technical problems existing in the prior art. In view of this, the embodiments of this application aim to provide an outdoor unit and HVAC system to reduce the difficulty of installing cooling equipment.

[0005] To achieve the above objectives, one embodiment of this application provides an outdoor unit for use in a heating, ventilation, and air conditioning (HVAC) system. The outdoor unit includes:

[0006] Refrigeration equipment;

[0007] A heating device includes an inlet pipe assembly, an outlet pipe assembly, and a spray assembly. Both the outlet pipe assembly and the spray assembly are connected to the inlet pipe assembly. The inlet pipe assembly is used to connect to a water source. The spray assembly includes nozzles. When the inlet pipe assembly is connected to the spray assembly, the spray assembly can supply liquid to the cooling device through the nozzles. When the inlet pipe assembly is connected to the outlet pipe assembly, the outlet pipe assembly can supply hot water to the room.

[0008] The outdoor unit according to the embodiments of this application has at least the following beneficial effects:

[0009] In this embodiment, the heating device includes a spray assembly. Both the outlet pipe assembly and the spray assembly are connected to the inlet pipe assembly. When the outdoor air temperature is high, the inlet pipe assembly connects to the spray assembly, allowing water to be supplied to the spray assembly. The liquid then acts on the cooling device through the nozzles of the spray assembly, thereby cooling the cooling device. The spray assembly utilizes the inlet pipe assembly within the heating device, eliminating the need for a separate inlet pipe, thus saving the step of drilling additional holes and reducing installation difficulty. Furthermore, since the spray assembly is integrated into the heating device, no additional installation is required after the outdoor unit is fixedly installed, further reducing the need for additional assembly steps for the spray assembly.

[0010] According to some embodiments of this application, the heating device further includes a three-way valve installed on the water inlet pipe assembly, the three-way valve being connected to the water inlet pipe assembly, the spray assembly and the water outlet pipe assembly respectively.

[0011] According to some embodiments of this application, the heating device further includes a water pump installed on the inlet pipe assembly. The water pump is located upstream of the three-way valve. When the three-way valve connects the inlet pipe assembly and the spray assembly, the water pump can pump liquid to the spray assembly. When the three-way valve connects the inlet pipe assembly and the outlet pipe assembly, the water pump can pump liquid to the outlet pipe assembly.

[0012] According to some embodiments of this application, the water inlet pipe assembly has a first connecting pipe for communicating with the three-way valve, the diameter of the first connecting pipe being a first pipe diameter; the spray assembly has a first pipe for communicating with the three-way valve, the diameter of the first pipe being a second pipe diameter; and the water outlet pipe assembly has a second connecting pipe for communicating with the three-way valve, the diameter of the second connecting pipe being a third pipe diameter, wherein the second pipe diameter is less than or equal to the first pipe diameter and the third pipe diameter.

[0013] According to some embodiments of this application, the spray assembly includes a first pipe and a second pipe communicating with the first pipe. The first pipe is used to connect to the water inlet pipe assembly. There are multiple second pipes, which are arranged at intervals along the height direction of the outdoor unit. Each of the multiple second pipes is connected to a nozzle.

[0014] According to some embodiments of this application, the spray assembly includes a first pipe and a second pipe communicating with the first pipe. The first pipe is used to connect to the water inlet pipe assembly, and the second pipe is connected to the nozzle. The diameter of the second pipe is smaller than the diameter of the first pipe.

[0015] According to some embodiments of this application, the second pipe has a first connecting section and a second connecting section, the first connecting section being connected to the second connecting section and the first pipe respectively, the nozzle being connected to the second connecting section, the diameter of the second connecting section being smaller than the diameter of the first connecting section, and both the diameter of the first connecting section and the diameter of the second connecting section being smaller than the diameter of the first pipe.

[0016] According to some embodiments of this application, the refrigeration device has an air inlet side and an air outlet side. External gas can flow through the air inlet side, pass through the interior of the refrigeration device, and then flow out to the outside from the air outlet side to dissipate heat from the refrigeration device. The nozzle is located on the side of the refrigeration device facing the air inlet side, and at least a portion of the nozzles are arranged along the side away from the air inlet side.

[0017] According to some embodiments of this application, the spray assembly includes a first pipe, a second pipe, and a third pipe. The first pipe is used to communicate with the water inlet pipe assembly. The second pipe and the third pipe are both connected to the first pipe. The second pipe and the third pipe are both connected to the nozzles. The nozzles corresponding to the second pipe are used to cool the refrigeration device, and the nozzles corresponding to the third pipe are used to clean the refrigeration device.

[0018] This application intends to provide a heating, ventilation, and air conditioning system, including:

[0019] First internal unit;

[0020] Second internal unit;

[0021] As in any of the above, the first indoor unit is connected to the refrigeration device, and the second indoor unit is connected to the heating device.

[0022] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0023] Figure 1 This is a top view of the structure of a heating device according to an embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the structure of a heating device according to an embodiment of this application;

[0025] Figure 3 This is a rear view of the structure of the outdoor unit according to an embodiment of this application;

[0026] Figure 4 This is a schematic diagram of the structure of the outdoor unit according to an embodiment of this application.

[0027] Figure label:

[0028] 100. Refrigeration unit; 100a. Air inlet side; 200. Heating unit; 210. Water inlet pipe assembly; 210a. First connecting pipe; 211. Water inlet pipe; 212. Water inlet valve; 213. Expansion tank; 220. Water outlet pipe assembly; 220a. Second connecting pipe; 221. Water outlet pipe; 222. Heat exchanger; 230. Spray assembly; 230a. First nozzle; 230b. Second nozzle; 231. First pipe; 232. Second pipe; 233. Third pipe; 240. Water pump; 250. Three-way valve. Detailed Implementation

[0029] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0031] In the description of the embodiments of this application, the technical terms "first," "second," "third," etc., are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0032] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0033] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0034] In the description of the embodiments of this application, the technical terms "top", "bottom", "upper", "lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0035] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0036] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0037] In related technologies, the outdoor unit typically houses a refrigeration unit that generates cold air to cool the indoor environment. When the outside air temperature is high, it can negatively impact the heat absorption efficiency of the condenser within the refrigeration unit. This technology often involves adding an additional spray system outside the outdoor unit. The spray system's inlet pipe is connected to an indoor water source to supply water to the spray nozzles. At least a portion of the inlet pipe must extend indoors to connect with the water source, and at least another portion must extend outdoors to connect with the nozzles. Consumers need to drill an additional hole in the wall for the inlet pipe, and the outdoor portion of the spray system requires additional securing.

[0038] The heating device 200 of this application includes a spray assembly 230, and an inlet pipe assembly 210 is optionally connected to an outlet pipe assembly 220 and the spray assembly 230. The spray assembly 230 can utilize the existing inlet pipe assembly 210 in the heating device 200, thereby eliminating the need for additional holes in the wall and reducing installation difficulty.

[0039] This application proposes to provide a heating, ventilation, and air conditioning system, including a first indoor unit, a second indoor unit, and an outdoor unit.

[0040] For example, taking a heating and ventilation system with refrigerant as the heating medium and water as the heating object, the first indoor unit and the second indoor unit of the heating and ventilation system are both air conditioner indoor units, and the first indoor unit and the second indoor unit form a circulation path with the outdoor unit.

[0041] For example, in a heating, ventilation, and air system where air and water are used as the medium, the first indoor unit of the heating, ventilation, and air system can be an air conditioning indoor unit, and the second indoor unit can be a floor heating indoor unit.

[0042] This application proposes to provide an outdoor unit for use in HVAC systems. Please refer to [link / reference]. Figure 1 and Figure 2 The outdoor unit includes a cooling unit 100 and a heating unit 200. Exemplarily, the cooling unit 100 includes a condenser. The heating unit 200 includes an inlet pipe assembly 210, an outlet pipe assembly 220, and a spray assembly 230. Exemplarily, the inlet pipe assembly 210 is connected to a water source in the consumer's room. Both the outlet pipe assembly 220 and the spray assembly 230 are connected to the inlet pipe assembly 210. It is understood that when the inlet pipe assembly 210 is connected to the outlet pipe assembly 220, liquid from the water source can flow into the outlet pipe assembly 220, where it can be heated. The heated liquid then flows back into the room, further heating the room. The spray assembly 230 includes nozzles; when the inlet pipe assembly 210 is connected to the spray assembly 230, liquid can pass through the nozzles to cool the cooling unit 100. For example, the nozzle is used to atomize the liquid, and the volume of the atomized liquid is large, thereby increasing the cooling area of ​​the nozzle and improving the cooling effect of the spray assembly 230.

[0043] In this embodiment, the heating device 200 is equipped with a spray assembly 230. Both the outlet pipe assembly 220 and the spray assembly 230 can be connected to the inlet pipe assembly 210. When the outdoor air temperature is high, the inlet pipe assembly 210 can be connected to the spray assembly 230, allowing water to be supplied to the spray assembly 230. The liquid can act on the cooling device 100 through the nozzles of the spray assembly 230, thereby cooling the cooling device 100. The spray assembly 230 can utilize the inlet pipe assembly 210 in the heating device 200, eliminating the need for an additional inlet pipe 211, thus saving the step of drilling additional holes and reducing installation difficulty. Furthermore, the sprinkler assembly 230 is integrated into the heating unit 200, meaning that after the outdoor unit is fixedly installed, there is no need for additional installation of the sprinkler assembly 230, thereby reducing the additional assembly process for the sprinkler assembly 230.

[0044] In one embodiment, please refer to Figure 1 and Figure 2The inlet pipe assembly 210 includes an inlet pipe 211, an inlet valve 212, and an expansion tank 213. Both the inlet valve 212 and the expansion tank 213 are installed on the inlet pipe 211, which is connected to an external water source. The expansion tank 213 buffers pressure fluctuations within the inlet pipe assembly 210, maintaining stable water pressure. Water flows sequentially from upstream to downstream through the expansion tank 213 and the inlet valve 212.

[0045] In one embodiment, please refer to Figure 1 and Figure 2 The heating device 200 also includes a three-way valve 250 installed on the inlet pipe assembly 210. The three-way valve 250 is connected to the inlet pipe assembly 210, the spray assembly 230, and the outlet pipe assembly 220 respectively, thereby enabling the inlet pipe assembly 210 to be selectively connected to the outlet pipe assembly 220 and the spray assembly 230. The heating device 200 has a relatively simple structure and is relatively easy to control.

[0046] It is understood that other embodiments of this application are not limited to the connection of the inlet pipe assembly 210, the sprinkler assembly 230, and the outlet pipe assembly 220 via a three-way valve 250. Exemplarily, both the sprinkler assembly 230 and the outlet pipe assembly 220 are equipped with shut-off valves. When spraying is required, the shut-off valve corresponding to the outlet pipe assembly 220 is in a shut-off state. When indoor heating is required, the shut-off valve corresponding to the sprinkler assembly 230 is in a shut-off state.

[0047] In one embodiment, please refer to Figure 1 and Figure 2 The heating device 200 also includes a water pump 240 installed in the inlet pipe assembly 210, located upstream of the three-way valve 250. The water pump 240 is located downstream of the inlet valve 212 and can pump water from the inlet pipe 211 to the spray assembly 230 or the outlet pipe assembly 220. Exemplarily, the outlet pipe assembly 220 includes an outlet pipe 221 and a heat exchanger 222 communicating with the outlet pipe 221, which is connected to the three-way valve 250. The water pump 240 in the heating device 200 can pump water to the spray assembly 230 or the outlet pipe assembly 220, and the structure within the heating device 200 is relatively simple.

[0048] It is understood that other embodiments of this application are not limited to the heating device 200 including the water pump 240 and the three-way valve 250 installed in the water inlet pipe assembly 210. Exemplarily, the water inlet pipe assembly 210 includes a first water inlet pipe, a second water inlet pipe, and a third water inlet pipe. The second water inlet pipe is connected to the spray assembly 230 and the three-way valve 250 respectively. The third water inlet pipe is connected to the water outlet pipe assembly 220 and the three-way valve 250 respectively. The first water inlet pipe is connected to an external water source and the three-way valve 250 respectively. The first water inlet pipe is located upstream of the second and third water inlet pipes. Through the three-way valve 250, the first water inlet pipe can selectively connect to the second and third water inlet pipes. A water pump is correspondingly installed on both the second and third water inlet pipes.

[0049] In one embodiment, please refer to Figure 1 The expansion tank 213 and the water pump 240 are arranged at intervals along the length of the heating device 200. For example, the length of the heating device 200 is orthogonal to its thickness direction, and the inlet valve 212 is located between the water pump 240 and the expansion tank 213. The length of the heating device 200 is as follows: Figure 1 The direction indicated by the middle arrow R3 is the thickness direction of the heating device 200. Figure 1 The direction indicated by the middle arrow R1. The arrangement of the expansion tank 213 and the water pump 240 can make full use of the space along the length of the heating device 200, and the expansion tank 213 and the water pump 240 are located as far apart as possible. During the maintenance of the expansion tank 213 and the water pump 240, the operating space of the maintenance personnel is large, and the mutual obstruction between the expansion tank 213 and the water pump 240 is small.

[0050] It is understood that other embodiments of this application are not limited to the expansion tank 213 and the water pump 240 being arranged at intervals along the length of the heating device 200. Exemplarily, the expansion tank 213 and the water pump 240 are arranged along the thickness of the heating device 200.

[0051] In one embodiment, please refer to Figure 1 The water pump 240 and the three-way valve 250 are arranged parallel to the thickness direction of the outdoor unit. For example, the heating unit 200 is arranged parallel to the thickness direction of the outdoor unit. This arrangement of the water pump 240 and the three-way valve 250 allows for more efficient use of the installation space in the thickness direction of the heating unit 200, thus enabling a smaller length dimension of the heating unit 200.

[0052] In one embodiment, please refer to Figure 3 and Figure 4The three-way valve 250 is connected to the inlet pipe assembly 210, the spray assembly 230, and the outlet pipe assembly 220, respectively. The inlet pipe assembly 210 has a first connecting pipe 210a for communicating with the three-way valve 250, and the diameter of the first connecting pipe 210a is a first pipe diameter. The spray assembly 230 includes a first pipe 231 for communicating with the three-way valve 250, and the diameter of the first pipe 231 is a second pipe diameter. The outlet pipe assembly 220 has a second connecting pipe 220a for communicating with the three-way valve 250, and the diameter of the second connecting pipe 220a is a third pipe diameter. The second pipe diameter is less than or equal to the first pipe diameter and the third pipe diameter. For example, the inlet pipe 211 is connected to the first connecting pipe 210a, and the outlet pipe 221 is connected to the second connecting pipe 220a. The diameter of the inlet pipe 211 is equal to the first pipe diameter, and the diameter of the outlet pipe 221 is equal to the third pipe diameter. For example, the first and third pipe diameters range from 25mm to 40mm, and the second pipe diameter ranges from 15mm to 40mm. At least a portion of the structure of the first pipe 231 extends in the vertical direction. The third pipe diameter is smaller, resulting in higher water pressure in the third pipe diameter. This allows the water flow in the spray assembly 230 to flow more smoothly from a lower position to a higher position. The higher water pressure in the spray assembly 230 also increases the speed at which the water is sprayed from the nozzle, resulting in better atomization of the spray assembly 230.

[0053] In one embodiment, please refer to Figure 3 The spray assembly 230 includes a first pipe 231 and a second pipe 232 communicating with the first pipe 231. The first pipe 231 is used to connect to the water inlet pipe assembly 210. Multiple second pipes 232 are arranged at intervals along the height direction of the outdoor unit, and each second pipe 232 is connected to a nozzle. For example, the height directions of the cooling unit 100 and the heating unit 200 are parallel to the height direction of the outdoor unit, and the height direction of the outdoor unit is parallel to the vertical direction. The extension direction of the second pipes 232 is parallel to the length direction of the outdoor unit, and the length directions of the cooling unit 100 and the heating unit 200 are parallel to the length direction of the outdoor unit. The length direction of the outdoor unit is orthogonal to its height direction, as shown in the image. Figure 3 The direction indicated by the middle arrow R2. Multiple second pipes 232 can increase the spray volume of the spray assembly 230 per unit time to a certain extent, thereby increasing the cooling capacity of the spray assembly 230 and allowing the outside air temperature of the refrigeration device 100 to drop more quickly.

[0054] For example, there are multiple nozzles, and the number of nozzles is greater than the number of second pipes 232. At least one second pipe 232 is connected to multiple nozzles. The number of nozzles can affect the diffusion degree of the sprayed liquid by the spray assembly 230 to a certain extent. The fact that at least one second pipe 232 has multiple nozzles can increase the diffusion degree of the spray from the spray assembly 230, allowing the cooling device 100 to come into as complete contact as possible with the liquid sprayed by the spray assembly 230, thereby achieving a better cooling effect.

[0055] In one embodiment, please refer to Figure 3 The spray assembly 230 also includes a third pipe 233 that can communicate with the first pipe 231. The third pipe 233 has nozzles and its length is greater than or equal to a first preset time when the outdoor unit is not in operation. The third pipe 233 is connected to the first pipe 231 so that water can flow from the first pipe 231 to the third pipe 233, thereby allowing liquid to pass through the nozzles corresponding to the third pipe 233 to clean the refrigeration unit 100. For example, the third pipe 233 is located above the second pipe 232.

[0056] For example, the nozzle corresponding to the second pipe 232 is the first nozzle 230a, which is used to cool the refrigeration device 100, and the nozzle corresponding to the third pipe 233 is the second nozzle 230b, which is used to clean the refrigeration device 100.

[0057] In one embodiment, the second pipe 232 has a nozzle, and the diameter of the second pipe 232 is smaller than the diameter of the first pipe 231. For example, the diameter of the second pipe 232 ranges from 15mm to 32mm. The further reduction in diameter of the second pipe 232 compared to the first pipe 231 increases the water pressure within the second pipe 232, thereby further increasing the water pressure at the nozzle, improving the atomization effect of the nozzle, and extending the spray distance.

[0058] In one embodiment, the second conduit 232 has a first connecting section and a second connecting section. The first connecting section is connected to both the second connecting section and the first conduit 231. The nozzle is connected to the second connecting section. The diameter of the second connecting section is smaller than the diameter of the first connecting section, and both the diameters of the first and second connecting sections are smaller than the diameter of the first conduit 231. For example, the diameter of the first connecting section is 20 mm, and the diameter of the second connecting section is 15 mm. During the flow from the first conduit 231 to the nozzle, the pipe diameter is reduced twice, thereby minimizing the increase in resistance caused by large changes in pipe diameter.

[0059] In one embodiment, please refer to Figure 3The refrigeration unit 100 has an air inlet side 100a and an air outlet side. Exemplarily, the air inlet side 100a and the air outlet side are arranged along the thickness direction of the outdoor unit, with the air outlet side located at the front of the outdoor unit and the air inlet side 100a located at the rear of the outdoor unit. Outside air can flow through the air inlet side 100a, through the interior of the refrigeration unit 100, and then flow from the air outlet side to the outside, thereby dissipating heat from the refrigeration unit. Nozzles are located on the side of the refrigeration unit 100 facing the air inlet side 100a, and at least a portion of the nozzles are arranged in a spray direction away from the air inlet side 100a. Exemplarily, the nozzles and the second pipe 232 are arranged parallel to the thickness direction of the outdoor unit, with the nozzles located on the side of the second pipe 232 away from the refrigeration unit 100. The nozzles are arranged in a spray direction from the outlet side towards the inlet side 100a, and the spray direction is roughly opposite to the airflow direction. When the liquid is atomized and sprayed to the outside through the nozzles, the atomized liquid can be carried by the airflow to come into contact with the refrigeration unit 100, thereby cooling the refrigeration unit 100. Avoiding direct spraying of the nozzles onto the refrigeration unit 100 can reduce the degree of corrosion of the refrigeration unit 100 in cases of poor water quality.

[0060] It is understood that other embodiments of this application are not limited to the arrangement of the nozzle spray direction along the air outlet side toward the air inlet side 100a. Exemplarily, the nozzle spray direction is arranged along the air inlet side 100a toward the air outlet side, and the nozzle is located on the side of the second pipe 232 toward the refrigeration equipment.

[0061] In one embodiment, please refer to Figure 3 At least a portion of the nozzles are first nozzles 230a, and the spray direction of the first nozzles 230a is arranged along the side away from the air inlet side 100a, that is, the nozzle corresponding to the second pipe 232 is the first nozzle 230a. When the outside air temperature is high, the first nozzles 230a can cool the refrigeration device 100. At least a portion of the nozzles are second nozzles 230b, that is, the nozzle corresponding to the third pipe 233 is the second nozzle 230b. The spray direction of the second nozzles 230b is arranged along the side facing the air inlet side 100a. When the refrigeration device is in a state of non-operation for a long time, the second nozzles 230b can clean the refrigeration device 100. The spray direction of the second nozzles 230b can be directly directed towards the refrigeration device 100 to spray the refrigeration device 100, thereby the cleaning effect of the second nozzles 230b is better. When the outdoor unit has not been running for a long time, a certain amount of dust will adhere to the surface of the refrigeration unit 100. The liquid sprayed by the second nozzle 230b is directly sprayed onto the refrigeration unit 100, which can wash away the dust from the refrigeration unit 100 more completely.

[0062] In one embodiment, please refer to Figure 3 and Figure 4The heating device 200 and the cooling device 100 are arranged parallel to each other in the vertical direction, with the water inlet pipe assembly 210 located below the cooling device 100. Exemplarily, the heating device 200 has a water inlet connected to the water inlet pipe assembly 210, which is used to connect to an indoor water source. It is understood that the indoor water source needs to be connected to the water inlet through a corresponding pipe to supply water to the water inlet pipe assembly 210. The location of the heating device 200 at the bottom of the cooling device 100 facilitates the connection of indoor water pipes to the water inlet pipe assembly 210, allowing the water pipes to supply water to the water inlet pipe assembly 210 with a relatively short extension distance.

[0063] It is understood that other embodiments of this application are not limited to the arrangement of the heating device 200 and the cooling device 100 in a direction parallel to the vertical direction. For example, the heating device 200 and the cooling device 100 are arranged along the length of the outdoor unit.

[0064] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application 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 or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and all should be covered within the scope of the specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of protection.

Claims

1. An outdoor unit used in a heating, ventilation, and air conditioning (HVAC) system, characterized in that, include: Refrigeration equipment; A heating device includes an inlet pipe assembly, an outlet pipe assembly, and a spray assembly. Both the outlet pipe assembly and the spray assembly are connected to the inlet pipe assembly. The inlet pipe assembly is used to connect to a water source. The spray assembly includes nozzles. When the inlet pipe assembly is connected to the spray assembly, the spray assembly can supply liquid to the cooling device through the nozzles. When the inlet pipe assembly is connected to the outlet pipe assembly, the outlet pipe assembly can supply hot water to the room.

2. The outdoor unit according to claim 1, characterized in that, The heating device also includes a three-way valve installed on the water inlet pipe assembly, the three-way valve being connected to the water inlet pipe assembly, the spray assembly and the water outlet pipe assembly respectively.

3. The outdoor unit according to claim 2, characterized in that, The heating device also includes a water pump installed on the inlet pipe assembly. The water pump is located upstream of the three-way valve. When the three-way valve connects the inlet pipe assembly and the spray assembly, the water pump can pump liquid to the spray assembly. When the three-way valve connects the inlet pipe assembly and the outlet pipe assembly, the water pump can pump liquid to the outlet pipe assembly.

4. The outdoor unit according to claim 2, characterized in that, The inlet pipe assembly has a first connecting pipe for communicating with the three-way valve, the diameter of the first connecting pipe being a first pipe diameter; the spray assembly has a first pipe for communicating with the three-way valve, the diameter of the first pipe being a second pipe diameter; the outlet pipe assembly has a second connecting pipe for communicating with the three-way valve, the diameter of the second connecting pipe being a third pipe diameter, the second pipe diameter being less than or equal to the first pipe diameter and the third pipe diameter.

5. The outdoor unit according to claim 1, characterized in that, The spray assembly includes a first pipe and a second pipe connected to the first pipe. The first pipe is used to connect to the water inlet pipe assembly. There are multiple second pipes, which are arranged at intervals along the height direction of the outdoor unit. Each of the multiple second pipes is connected to a nozzle.

6. The outdoor unit according to claim 1, characterized in that, The spray assembly includes a first pipe and a second pipe communicating with the first pipe. The first pipe is used to connect to the water inlet pipe assembly, and the second pipe is connected to the nozzle. The diameter of the second pipe is smaller than the diameter of the first pipe.

7. The outdoor unit according to claim 6, characterized in that, The second pipe has a first connecting section and a second connecting section. The first connecting section is connected to the second connecting section and the first pipe, respectively. The nozzle is connected to the second connecting section. The diameter of the second connecting section is smaller than the diameter of the first connecting section. The diameters of both the first connecting section and the second connecting section are smaller than the diameter of the first pipe.

8. The outdoor unit according to claim 1, characterized in that, The refrigeration device has an air inlet side and an air outlet side. External gas can flow through the air inlet side, pass through the interior of the refrigeration device, and then flow out to the outside from the air outlet side, thereby dissipating heat from the refrigeration device. The nozzle is located on the side of the refrigeration device facing the air inlet side, and at least a portion of the nozzles are arranged in a spraying direction away from the air inlet side.

9. The outdoor unit according to claim 1, characterized in that, The spray assembly includes a first pipe, a second pipe, and a third pipe. The first pipe is connected to the water inlet pipe assembly. The second pipe and the third pipe are both connected to the first pipe. The second pipe and the third pipe are both connected to nozzles. The nozzles corresponding to the second pipe are used to cool the refrigeration device, and the nozzles corresponding to the third pipe are used to clean the refrigeration device.

10. A heating, ventilation, and air conditioning system, characterized in that, include: First internal unit; Second internal unit; The outdoor unit as described in any one of claims 1 to 9, wherein the first indoor unit is connected to the refrigeration device, and the second indoor unit is connected to the heating device.

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