Heat pump device and air conditioning system

Abstract

The utility model discloses a heat pump device and an air conditioning system, and relates to the technical field of heat exchange. The air conditioner comprises an outdoor assembly, an inner machine assembly, a liquid inlet valve group and a liquid outlet valve group. The liquid inlet of each outdoor assembly is communicated with the first liquid outlet of the inner unit assembly, and the liquid outlet of each outdoor assembly is communicated with the first liquid inlet of the inner unit assembly. And the liquid inlet valve group is communicated with the second liquid outlet of the inner machine assembly and the liquid inlet of each outdoor assembly. And the liquid outlet valve group is communicated with the second liquid inlet of the inner machine assembly and the liquid outlet of each outdoor assembly. Therefore, the conduction state of the liquid inlet valve set and the liquid outlet valve set can be adjusted through the refrigerating or heating mode of the indoor unit, and the function of independent refrigerating, independent heating or simultaneous refrigerating and heating in multiple areas can be achieved on the basis that a heat recovery module does not need to be additionally arranged. Therefore, the structural complexity of the heat pump device is reduced, and the product adaptability of the heat pump device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange, in particular to a heat pump device and an air-conditioning system. Background Art

[0002] Conventional heat pump modules can only operate in either cooling or heating mode. Currently, to meet the need for simultaneous cooling and heating in different rooms, a heat recovery module is often required. Compared to conventional heat pump modules, heat recovery modules incorporate a heat exchanger, allowing them to operate in cooling mode while also recovering waste heat lost to the air for use in domestic water or heating.

[0003] However, when the heating load of the heat pump module is unstable, the heat recovery module may switch to a water-cooled or air-cooled heat exchanger operating in cooling mode, resulting in high structural complexity of the heat recovery module and low product applicability. Utility Model Content

[0004] In view of the problems of high structural complexity and low product applicability of current heat recovery modules, the present utility model is proposed to provide a heat pump device and air-conditioning system that overcome the above problems or at least partially solve the above problems.

[0005] According to a first aspect of the present invention, a heat pump device is provided, comprising:

[0006] At least two outdoor components;

[0007] An indoor unit assembly, the indoor unit assembly comprising at least two indoor units, wherein the liquid inlet of each outdoor unit is communicated with the first liquid outlet of the indoor unit assembly, and the liquid outlet of each outdoor unit is communicated with the first liquid inlet of the indoor unit assembly;

[0008] a liquid inlet valve group, wherein the liquid inlet valve group is connected to the second liquid outlet of the indoor unit and the liquid inlet of each outdoor unit, so as to adjust the liquid path connection state of the liquid inlet of the outdoor unit through the liquid inlet valve group;

[0009] A liquid outlet valve group is connected with the second liquid inlet of the indoor unit and the liquid outlet of each outdoor unit to adjust the liquid path connection state of the liquid outlet of the outdoor unit through the liquid outlet valve group.

[0010] An optional utility model content, the liquid inlet valve group includes at least two liquid inlet three-way valves, wherein the number of the liquid inlet three-way valves is the same as the number of the outdoor components.

[0011] An optional utility model content, the liquid inlet of each outdoor component is connected to the first end of each liquid inlet three-way valve, the first liquid outlet is connected to the second end of each liquid inlet three-way valve, and the second liquid outlet is connected to the third end of each liquid inlet three-way valve.

[0012] An optional utility model content, the liquid inlet three-way valve is an electric three-way valve, and the heat pump device also includes a controller, which is electrically connected to the liquid inlet three-way valve to adjust the liquid path conduction state of the liquid inlet three-way valve through the controller.

[0013] An optional utility model content, the liquid outlet valve group includes at least two liquid outlet three-way valves, wherein the number of the liquid outlet three-way valves is the same as the number of the outdoor components.

[0014] An optional utility model content, the liquid outlet of each outdoor component is connected to the first end of each liquid outlet three-way valve, the first liquid inlet is connected to the second end of each liquid outlet three-way valve, and the second liquid inlet is connected to the third end of each liquid outlet three-way valve.

[0015] An optional utility model content, the liquid outlet three-way valve is an electric three-way valve, and the heat pump device also includes a controller, which is electrically connected to the liquid outlet three-way valve to adjust the liquid path conduction state of the liquid outlet three-way valve through the controller.

[0016] An optional utility model content, the liquid inlet valve group and the liquid outlet valve group both use electric three-way valves, the heat pump device also includes a controller, the liquid inlet valve group, the liquid outlet valve group, the indoor unit component and the outdoor component are respectively electrically connected to the controller to control the liquid path connection state between the indoor unit component and the outdoor component through the controller.

[0017] An optional utility model content, the outdoor component includes at least one outdoor unit.

[0018] Based on the second aspect of the present invention, an air-conditioning system is further provided, which includes the heat pump device as described in any one of the above utility models.

[0019] Compared to the prior art, the present invention includes at least two outdoor units, an indoor unit, a liquid inlet valve assembly, and a liquid outlet valve assembly. The indoor unit assembly includes at least two indoor units, wherein the liquid inlet of each outdoor unit is connected to the first liquid outlet of the indoor unit, and the liquid outlet of each outdoor unit is connected to the first liquid inlet of the indoor unit. The liquid inlet valve assembly is connected to the second liquid outlet of the indoor unit and the liquid inlet of each outdoor unit, allowing the liquid inlet valve assembly to adjust the liquid communication state of the liquid inlet of the outdoor unit. The liquid outlet valve assembly is connected to the second liquid inlet of the indoor unit and the liquid outlet of each outdoor unit, allowing the liquid outlet valve assembly to adjust the liquid communication state of the liquid outlet of the outdoor unit. This allows the conduction state of the liquid inlet and outlet valve assemblies to be adjusted according to the cooling or heating mode of the indoor unit, enabling independent cooling, independent heating, or simultaneous cooling and heating functions in multiple zones without the need for additional heat recovery modules. As a result, the structural complexity of the heat pump device is reduced and the product adaptability of the heat pump device is improved.

[0020] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be construed as limiting the present invention. The same reference numerals are used throughout the accompanying drawings to denote the same components.

[0022] In the attached figure:

[0023] Figure 1 This is a schematic structural diagram of a heat pump device provided by an embodiment of the present utility model;

[0024] Figure 2 This is a schematic flow chart of the steps of a control method for a heat pump device provided by an embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram of water circulation in a heat pump device in full heating mode provided by an embodiment of the present utility model;

[0026] Figure 4 This is a schematic diagram of water circulation in a heat pump device in full cooling mode provided by an embodiment of the present utility model;

[0027] Figure 5This is a schematic diagram of water circulation in a hybrid operation mode of a heat pump device provided by an embodiment of the present utility model;

[0028] Figure 6 This is a structural diagram of an internal unit assembly provided by an embodiment of the present utility model;

[0029] Figure numerals: 1. Outdoor component; 2. Indoor unit component; 21. Indoor unit; 22. First liquid inlet valve; 23. Second liquid inlet valve; 201. First liquid outlet; 202. First liquid inlet; 203. Second liquid outlet; 204. Second liquid inlet; 3. Liquid inlet valve group; 31. Liquid inlet three-way valve; 4. Liquid outlet valve group; 41. Liquid outlet three-way valve; 5. Controller; 6. Hot water pump; 7. Refrigeration water pump. DETAILED DESCRIPTION

[0030] The following describes exemplary embodiments of the present invention in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0031] Conventional heat pump modules can only operate in either cooling or heating mode. Currently, to meet the need for simultaneous cooling and heating in different rooms, a heat recovery module is often required. Compared to conventional heat pump modules, heat recovery modules incorporate a heat exchanger, allowing them to operate in cooling mode while also recovering waste heat lost to the air for use in domestic water or heating.

[0032] However, when the heating load of the heat pump module is unstable, the heat recovery module may switch to a water-cooled or air-cooled heat exchanger operating in cooling mode, resulting in high structural complexity of the heat recovery module and low product applicability.

[0033] Based on the above technical problems, the present invention proposes an embodiment of the present invention. The embodiment of the present invention may include at least two outdoor units 1, an indoor unit 2, a liquid inlet valve group 3, and a liquid outlet valve group 4. The indoor unit 2 includes at least two indoor units 21, wherein the liquid inlet of each outdoor unit 1 is connected to the first liquid outlet 201 of the indoor unit 2, and the liquid outlet of each outdoor unit 1 is connected to the first liquid inlet 202 of the indoor unit 2. The liquid inlet valve group 3 is connected to the second liquid outlet 203 of the indoor unit 2 and the liquid inlet of each outdoor unit 1, so that the liquid communication state of the liquid inlet of the outdoor unit 1 can be adjusted through the liquid inlet valve group 3. The liquid outlet valve group 4 is connected to the second liquid inlet 204 of the indoor unit 2 and the liquid outlet of each outdoor unit 1, so that the liquid communication state of the liquid outlet of the outdoor unit 1 can be adjusted through the liquid outlet valve group 4. Thus, the conduction state of the liquid inlet valve group 3 and the liquid outlet valve group 4 can be adjusted according to the cooling or heating mode of the indoor unit 21, and the functions of independent cooling, independent heating, or simultaneous cooling and heating can be achieved in multiple areas without adding a heat recovery module. This reduces the structural complexity of the heat pump device and improves the product adaptability of the heat pump device.

[0034] Reference Figure 1-6 The present invention provides a heat pump device in accordance with an embodiment of the present invention. The heat pump device may include at least two outdoor components 1, an indoor component 2, a liquid inlet valve group 3, and a liquid outlet valve group 4, wherein:

[0035] The indoor unit assembly 2 includes at least two indoor units 21, wherein the liquid inlet of each outdoor unit 1 is connected to the first liquid outlet 201 of the indoor unit assembly 2, and the liquid outlet of each outdoor unit 1 is connected to the first liquid inlet 202 of the indoor unit assembly 2. The liquid inlet valve group 3 is connected to the second liquid outlet 203 of the indoor unit assembly 2 and the liquid inlet of each outdoor unit 1, so that the liquid communication state of the liquid inlet of the outdoor unit 1 can be adjusted through the liquid inlet valve group 3. The liquid outlet valve group 4 is connected to the second liquid inlet 204 of the indoor unit assembly 2 and the liquid outlet of each outdoor unit 1, so that the liquid communication state of the liquid outlet of the outdoor unit 1 can be adjusted through the liquid outlet valve group 4.

[0036] In an embodiment of the present invention, the outdoor component 1 is used to heat or cool the circulating water. For example, when operating in cooling mode, the outdoor component 1 is used to cool the circulating water. Thus, low-temperature circulating water (for example, between 5 and 10 degrees Celsius) can be sent into the indoor unit 21 to exchange heat with the indoor air, thereby achieving cooling of the indoor environment. When operating in heating mode, the outdoor component 1 is used to heat the circulating water, so that high-temperature circulating water (for example, between 40 and 60 degrees Celsius) can be sent into the indoor unit 21 to exchange heat with the indoor air, thereby achieving heating of the indoor environment.

[0037] The indoor unit assembly 2 may include at least two indoor units 21. For example, at least one indoor unit 21 may be provided in separate indoor environments, thereby enabling temperature control of each indoor environment. Figure 6 As shown, the first liquid inlets 202 of all indoor units 21 form a fluidic connection and serve as the first liquid inlet 202 of the indoor unit assembly 2. The second liquid inlets 204 of all indoor units 21 form a fluidic connection and serve as the second liquid inlet 204 of the indoor unit assembly 2. The first liquid outlets 201 of all indoor units 21 form a fluidic connection and serve as the first liquid outlet 201 of the indoor unit assembly 2. The second liquid outlets 203 of all indoor units 21 form a fluidic connection and serve as the second liquid outlet 203 of the indoor unit assembly 2. Furthermore, the indoor unit assembly 2 also includes at least two first liquid inlet valves 22 and at least two second liquid inlet valves 23. The first and second liquid inlet valves 22 and 23 are used to control the flow of circulating water into the indoor units 21. For example, when the indoor units 21 are operating in heating mode, the first liquid inlet valve 22 of the corresponding indoor unit 21 is open, while the second liquid inlet valve 23 is closed, allowing high-temperature circulating water to enter the indoor unit 21. For another example, when the indoor unit 21 operates in cooling mode, the first liquid inlet valve 22 corresponding to the indoor unit 21 is closed, and the second liquid inlet valve 23 is opened, so that low-temperature circulating water enters the indoor unit 21 .

[0038] The liquid inlet of each outdoor assembly 1 is connected to the first liquid outlet 201 of the indoor unit assembly 2, and the liquid outlet of each outdoor assembly 1 is connected to the first liquid inlet 202 of the indoor unit assembly 2. The first liquid outlet 201 can be understood as the outlet for high-temperature circulating water. The first liquid inlet 202 can be understood as the inlet for high-temperature circulating water. The second liquid outlet 203 can be understood as the outlet for low-temperature circulating water, and the second liquid inlet 204 can be understood as the inlet for low-temperature circulating water. The liquid inlet valve group 3 can include at least two valves. The liquid outlet valve group 4 can include at least two valves.

[0039] The inlet valve assembly 3 is in communication with the second liquid outlet 203 of the indoor unit assembly 2 and the liquid inlet of each outdoor unit 1, allowing the inlet valve assembly 3 to adjust the fluid communication state of the liquid inlet of the outdoor unit 1. Specifically, the inlet valve assembly 3 can be used to control whether the water entering the outdoor unit 1 is low-temperature circulating water or high-temperature circulating water. The outlet valve assembly 4 is in communication with the second liquid inlet 204 of the indoor unit assembly 2 and the liquid outlet of each outdoor unit 1, allowing the outlet valve assembly 4 to adjust the fluid communication state of the liquid outlet of the outdoor unit 1. Specifically, the outlet valve assembly 4 can be used to control whether the water entering the indoor unit 21 is low-temperature circulating water or high-temperature circulating water. The conduction state of the inlet valve assembly 3 and the outlet valve assembly 4 can be adjusted based on the cooling or heating mode of the indoor unit 21, enabling independent cooling, independent heating, or simultaneous cooling and heating functions in multiple zones. This reduces the structural complexity of the heat pump device and improves its product adaptability.

[0040] In summary, the present invention discloses a heat pump device, which may include at least two outdoor units 1, an indoor unit 2, a liquid inlet valve group 3, and a liquid outlet valve group 4. The indoor unit 2 includes at least two indoor units 21, wherein the liquid inlet of each outdoor unit 1 is connected to the first liquid outlet 201 of the indoor unit 2, and the liquid outlet of each outdoor unit 1 is connected to the first liquid inlet 202 of the indoor unit 2. The liquid inlet valve group 3 is connected to the second liquid outlet 203 of the indoor unit 2 and the liquid inlet of each outdoor unit 1, so that the liquid communication state of the liquid inlet of the outdoor unit 1 can be adjusted through the liquid inlet valve group 3. The liquid outlet valve group 4 is connected to the second liquid inlet 204 of the indoor unit 2 and the liquid outlet of each outdoor unit 1, so that the liquid communication state of the liquid outlet of the outdoor unit 1 can be adjusted through the liquid outlet valve group 4. Thus, the conduction state of the liquid inlet valve group 3 and the liquid outlet valve group 4 can be adjusted according to the cooling or heating mode of the indoor unit 21, and the functions of independent cooling, independent heating, or simultaneous cooling and heating can be achieved in multiple areas without adding a heat recovery module. This reduces the structural complexity of the heat pump device and improves the product adaptability of the heat pump device.

[0041] In an optional embodiment of the utility model, referring to Figure 1 、 Figure 3 、 Figure 4 as well as Figure 5 As shown, the liquid inlet valve group 3 includes at least two liquid inlet three-way valves 31 , wherein the number of the liquid inlet three-way valves 31 is the same as the number of the outdoor components 1 .

[0042] In this embodiment of the utility model, the liquid inlet valve assembly 3 may include at least two three-way liquid inlet valves 31, and the number of the three-way liquid inlet valves 31 provided is consistent with the number of the outdoor unit 1. Thus, each three-way liquid inlet valve 31 can be used to adjust the liquid inlet of the outdoor unit 1 to establish a fluid connection with the first liquid outlet 201 of the indoor unit 21. Alternatively, the liquid inlet of the outdoor unit 1 can be adjusted to establish a fluid connection with the second liquid outlet 203 of the indoor unit 21.

[0043] In some embodiments, the liquid inlet of each outdoor assembly 1 is connected to the first end of each liquid inlet three-way valve 31, and the first liquid outlet 201 is connected to the second end of each liquid inlet three-way valve 31. Furthermore, the second liquid outlet 203 is connected to the third end of each liquid inlet three-way valve 31. In other words, when the valve core of the liquid inlet three-way valve 31 rotates a certain angle, the first end of the liquid inlet three-way valve 31 and the second end of the liquid inlet three-way valve 31 form a fluid connection, and the liquid inlet of the outdoor assembly 1 is now connected to the first liquid outlet 201. This allows high-temperature circulating water to flow back to the outdoor assembly 1. When the liquid inlet three-way valve 31 rotates another certain angle, the first end of the liquid inlet three-way valve 31 and the third end of the liquid inlet three-way valve 31 form a fluid connection, and the liquid inlet of the outdoor assembly 1 is now connected to the second liquid outlet 203. This allows low-temperature circulating water to flow back to the outdoor assembly 1. The piping connecting the liquid inlet of each outdoor component 1 and the first liquid outlet 201 can be partially shared, i.e., a connection is formed by combining a main pipeline and a branch pipeline. The piping connecting the liquid inlet of each outdoor component 1 and the second liquid outlet 203 can also be partially shared, thereby reducing the piping complexity of the heat pump device.

[0044] In an optional embodiment of the utility model, referring to Figure 1 As shown, the liquid inlet three-way valve 31 is an electric three-way valve, and the heat pump device further includes a controller 5 , which is electrically connected to the liquid inlet three-way valve 31 to adjust the liquid path conduction state of the liquid inlet three-way valve 31 through the controller 5 .

[0045] In the embodiment of the present invention, the liquid inlet three-way valve 31 is an electric three-way valve, and the heat pump device may further include a controller 5, which is electrically connected to the liquid inlet three-way valve 31. Therefore, the controller 5 can electrically drive the liquid inlet valve group 3 to adjust the liquid conduction state of the liquid inlet three-way valve 31, thereby improving the control convenience of the heat pump device.

[0046] In an optional embodiment of the utility model, referring to Figure 1 、 Figure 3 、 Figure 4 as well as Figure 5As shown, the liquid outlet valve group 4 includes at least two liquid outlet three-way valves 41 , wherein the number of the liquid outlet three-way valves 41 is the same as the number of the outdoor components 1 .

[0047] In an embodiment of the present invention, the liquid inlet valve group 3 may include at least two liquid outlet three-way valves 41, and the number of the liquid outlet three-way valves 41 is consistent with the number of the outdoor component 1. Thus, each liquid outlet three-way valve 41 can be used to adjust the liquid outlet of the outdoor component 1 to form a liquid connection with the first liquid inlet 202 of the indoor unit 21. Alternatively, the liquid outlet of the outdoor component 1 can be adjusted to form a liquid connection with the second liquid inlet 204 of the indoor unit 21. Thus, the conduction state of the liquid outlet valve group 4 can be used to control the circulating water of different temperatures from entering the first liquid inlet 202 (the liquid inlet for high-temperature circulating water) or the second liquid inlet 204 (the liquid inlet for low-temperature circulating water) of the indoor unit 21.

[0048] In some embodiments, the liquid outlet of each outdoor unit 1 is connected to the first end of each three-way liquid outlet valve 41, and the first liquid inlet 202 is connected to the second end of each three-way liquid outlet valve 41. Furthermore, the second liquid inlet 204 is connected to the third end of each three-way liquid outlet valve 41. In other words, when the valve core of the three-way liquid outlet valve 41 rotates a certain angle, the first end of the three-way liquid outlet valve 41 and the second end of the three-way liquid outlet valve 41 are connected, and the liquid outlet of the outdoor unit 1 is connected to the first liquid inlet 202. This allows high-temperature circulating water to flow to the indoor unit 21 in heating mode. When the three-way liquid outlet valve 41 rotates another certain angle, the first end of the three-way liquid outlet valve 41 and the third end of the three-way liquid outlet valve 41 are connected, and the liquid outlet of the outdoor unit 1 is connected to the second liquid inlet 204. This allows low-temperature circulating water to flow to the indoor unit 21 in cooling mode. The piping connecting the liquid outlet of each outdoor component 1 and the first liquid inlet 202 can be partially shared, i.e., a connection is formed by combining a main pipeline and a branch pipeline. The piping connecting the liquid outlet of each outdoor component 1 and the second liquid inlet 204 can also be partially shared, thereby reducing the piping complexity of the heat pump device.

[0049] In an optional embodiment of the utility model, the liquid outlet three-way valve 41 is an electric three-way valve, and the heat pump device also includes a controller 5, which is electrically connected to the liquid outlet three-way valve 41 to adjust the liquid path conduction state of the liquid outlet three-way valve 41 through the controller 5.

[0050] In the embodiment of the present invention, the liquid outlet three-way valve 41 is an electric three-way valve, and the heat pump device may further include a controller 5, which is electrically connected to the liquid outlet three-way valve 41. Therefore, the controller 5 can electrically drive the liquid outlet valve group 4 and adjust the liquid conduction state of the liquid outlet three-way valve 41, thereby improving the control convenience of the heat pump device.

[0051] In an optional embodiment of the utility model, referring to Figure 1 、 Figure 3 、 Figure 4 as well as Figure 5 As shown, the liquid inlet valve group 3 and the liquid outlet valve group 4 both adopt electric three-way valves. The heat pump device also includes a controller 5. The liquid inlet valve group 3, the liquid outlet valve group 4, the indoor unit component 2 and the outdoor component 1 are electrically connected to the controller 5 respectively, so as to control the liquid connection state between the indoor unit component 2 and the outdoor component 1 through the controller 5.

[0052] In the embodiment of the present invention, the liquid inlet valve group 3 and the liquid outlet valve group 4 both adopt electric three-way valves, so that the liquid inlet valve group 3 and the liquid outlet valve group 4 can be electrically driven, thereby improving the control convenience of the heat pump device.

[0053] The liquid inlet valve assembly 3, liquid outlet valve assembly 4, indoor unit assembly 2, and outdoor unit 1 are each electrically connected to the controller 5, so that the controller 5 controls the state of the fluid communication between the indoor unit assembly 2 and the outdoor unit 1. Thus, when both indoor units 21 are operating in cooling mode, the controller 5 controls the liquid inlet valve assembly 3 to establish fluid communication between the second liquid outlet 203 and the liquid inlet of the outdoor unit 1. The controller 5 controls the liquid outlet valve assembly 4 to establish fluid communication between the second liquid inlet 204 and the liquid outlet of the outdoor unit 1, thereby achieving a refrigeration cycle between the indoor unit 21 and the outdoor unit 1.

[0054] The first liquid inlet valve 22 and the second liquid inlet valve 23 are respectively electrically connected to the controller 5 to control the flow of circulating water into the indoor unit 21. For example, when the indoor unit 21 is operating in heating mode, the first liquid inlet valve 22 of the corresponding indoor unit 21 is opened and the second liquid inlet valve 23 is closed, thereby allowing high-temperature circulating water to enter the indoor unit 21. For another example, when the indoor unit 21 is operating in cooling mode, the first liquid inlet valve 22 of the corresponding indoor unit 21 is closed and the second liquid inlet valve 23 is opened, thereby allowing low-temperature circulating water to enter the indoor unit 21.

[0055] In other embodiments, when the indoor units 21 are all operating in the heating mode, the controller 5 controls the liquid inlet valve assembly 3 to operate so that the first liquid outlet 201 is in fluid communication with the liquid inlet of the outdoor unit 1. The controller 5 controls the liquid outlet valve assembly 4 to operate so that the second liquid inlet 204 is in fluid communication with the liquid outlet of the outdoor unit 1, thereby achieving a refrigeration cycle of the indoor units 21 and the outdoor unit 1.

[0056] In yet other embodiments, when at least one indoor unit 21 is operating in heating mode and at least one indoor unit 21 is operating in cooling mode, the controller 5 controls the liquid inlet valve assembly 3 to establish a fluid connection between the first liquid outlet 201 of the indoor unit 21 operating in heating mode and the liquid inlet of the outdoor unit 1. Furthermore, the controller 5 controls the liquid outlet valve assembly 4 to establish a fluid connection between the first liquid inlet 202 of the indoor unit 21 operating in heating mode and the liquid outlet of the outdoor unit 1. Furthermore, the controller 5 controls the second liquid inlet 204 of the indoor unit 21 operating in cooling mode and the liquid inlet of the outdoor unit 1. This allows for a cooling cycle between the indoor unit 21 operating in cooling mode and the outdoor unit 1, and a heating cycle between the indoor unit 21 operating in heating mode and the outdoor unit 1.

[0057] In an optional embodiment of the utility model, the outdoor component 1 includes at least one outdoor unit, wherein the outdoor component 1 may include one outdoor unit or may include at least two outdoor units connected in series. The series connection of the outdoor units may be understood as the liquid outlet of the preceding outdoor unit serving as the liquid inlet of the succeeding outdoor unit, thereby achieving multi-stage heating or cooling of the circulating water. When there are at least two outdoor units, the liquid inlet of the first outdoor unit serves as the liquid inlet of the outdoor component 1, and the liquid outlet of the last outdoor unit serves as the liquid outlet of the outdoor component 1.

[0058] In an optional embodiment of the utility model, referring to Figure 1 and Figure 3 As shown, the heat pump device further includes a hot water pump 6 , which is arranged between the first liquid outlet 201 and the liquid inlet of the outdoor component 1 .

[0059] In an embodiment of the present invention, the heat pump device may further include a hot water pump 6, which is located between the first liquid outlet 201 and the liquid inlet of the outdoor component 1. For example, the liquid inlet of the hot water pump 6 is in fluid communication with the first liquid outlet 201, and the liquid outlet of the hot water pump 6 is in fluid communication with the liquid inlet of the outdoor component 1, so that the hot water pump 6 can provide circulation power for high-temperature circulating water, thereby improving indoor heating efficiency in heating mode.

[0060] In an optional embodiment of the utility model, referring to Figure 1 and Figure 3 As shown, the heat pump device further includes a cooling water pump 7 , which is disposed between the second liquid outlet 203 and the liquid inlet of the outdoor component 1 .

[0061] In this embodiment of the utility model, the heat pump device may further include a refrigerated water pump 7. The refrigerated water pump 7 is located between the second liquid outlet 203 and the liquid inlet of the outdoor component 1. For example, the liquid inlet of the refrigerated water pump 7 is in fluid communication with the second liquid outlet 203, and the liquid outlet of the refrigerated water pump 7 is in fluid communication with the liquid inlet of the outdoor component 1. This allows the hot water pump 6 to provide circulation power for low-temperature circulating water, thereby improving indoor heating efficiency in cooling mode.

[0062] In summary, the present invention discloses a heat pump device, which may include at least two outdoor units 1, an indoor unit 2, a liquid inlet valve group 3, and a liquid outlet valve group 4. The indoor unit 2 includes at least two indoor units 21, wherein the liquid inlet of each outdoor unit 1 is connected to the first liquid outlet 201 of the indoor unit 2, and the liquid outlet of each outdoor unit 1 is connected to the first liquid inlet 202 of the indoor unit 2. The liquid inlet valve group 3 is connected to the second liquid outlet 203 of the indoor unit 2 and the liquid inlet of each outdoor unit 1, so that the liquid communication state of the liquid inlet of the outdoor unit 1 can be adjusted through the liquid inlet valve group 3. The liquid outlet valve group 4 is connected to the second liquid inlet 204 of the indoor unit 2 and the liquid outlet of each outdoor unit 1, so that the liquid communication state of the liquid outlet of the outdoor unit 1 can be adjusted through the liquid outlet valve group 4. Thus, the conduction state of the liquid inlet valve group 3 and the liquid outlet valve group 4 can be adjusted according to the cooling or heating mode of the indoor unit 21, and the functions of independent cooling, independent heating, or simultaneous cooling and heating can be achieved in multiple areas without adding a heat recovery module. This reduces the structural complexity of the heat pump device and improves the product adaptability of the heat pump device.

[0063] The present invention also discloses an air conditioning system, which may include the heat pump device described in any of the above-mentioned embodiments. The air conditioning system is suitable for temperature control in large commercial areas such as hotels, restaurants, and supermarkets. It can simultaneously meet the temperature control requirements of users in different temperature-controlled areas, for example, enabling independent cooling, independent heating, and simultaneous cooling and heating. The system offers strong product applicability, a simple structure, and ease of maintenance.

[0064] Reference Figure 2 The present invention also discloses a method for controlling a heat pump device. The heat pump device may include any one of the above-mentioned embodiments of the utility model. The control method is applied to the controller 5 and includes:

[0065] S201 , obtaining the number of currently operating indoor units 21 of the indoor unit assembly 2 and the unit operation mode of each indoor unit 21 .

[0066] S202: Determine a target operating mode of the heat pump device according to the number of operating units and the operating modes of the units.

[0067] S203 , adjusting the liquid inlet valve group 3 and the liquid outlet valve group 4 according to the target operation mode, and starting the outdoor component 1 to operate.

[0068] In an embodiment of the present invention, the outdoor component 1, the indoor unit 21, the liquid inlet valve group 3, and the liquid outlet valve group 4 are electrically connected to the controller 5, respectively. Thus, the controller 5 can obtain the working status of each component. For example, the working status of each component is obtained at preset time intervals. Thus, the target operating mode of the heat pump device can be determined based on the number of running units among all indoor units 21 and the unit operating mode of the indoor units 21. For example, between spring and summer, or in transitional seasons such as autumn and winter, when the weather changes significantly, some users may have cooling needs, while some users may have heating needs. For another example, in some industries, such as long-term storage of medicines or food, which is not affected by outdoor weather, the indoor units 21 in the storage area need to operate in cooling mode for a long time. Therefore, for a heat pump device, it may have needs such as cooling alone, heating alone, or simultaneous cooling and heating.

[0069] Therefore, the target operation mode of the heat pump device can be determined according to the unit operation mode of the indoor unit 21 and the number of operating units corresponding to the unit operation mode.

[0070] In some embodiments, reference Figure 3As shown, when the unit operation mode of all running indoor units 21 is heating mode, the target operation mode of the heat pump device is determined to be full heating mode (which can also be understood as separate heating mode). Therefore, when the target operation mode is full heating mode, the controller 5 can control the action of the liquid inlet valve group 3, so that the liquid inlet of the outdoor component 1 is connected to the first liquid outlet 201 of the indoor unit component 2. The liquid outlet of the outdoor component 1 is connected to the first liquid inlet 202 of the indoor unit component 2. In addition, the number of outdoor components 1 that match the cumulative heating power can be matched according to the cumulative heating power of the running indoor units 21 to obtain the target number. And the target number of outdoor components 1 are started to perform a heating cycle.

[0071] For example, taking the total number of outdoor components 1 as 10, when 8 outdoor components 1 are started, the high-temperature circulating water coming out of the outdoor component 1 first passes through the liquid outlet valve group 4 and reaches the first liquid inlet 202 of the indoor unit 21. Then, heat is released in the indoor unit 21 to heat the indoor air, achieving the indoor warming effect. The circulating water flowing out of the first liquid outlet 201 of the indoor unit 21 is then cooled to medium-temperature circulating water (for example, between 30 and 40 degrees Celsius). It then flows to the liquid inlet valve group 3 and finally enters the outdoor components 1 respectively. After absorbing the heat of the high-temperature refrigerant in the outdoor component 1, it flows out from the liquid outlet of the outdoor component 1 for circulation.

[0072] Since the remaining outdoor components 1 are in shutdown mode, the conduction states of the liquid inlet three-way valve 31 and the liquid outlet three-way valve 41 at the liquid inlet of the outdoor components 1 in shutdown mode can be randomly determined and are not limited in detail here. Among them, the cooling water pump 7 can be in shutdown mode.

[0073] Reference Figure 4 As shown, when the unit operation modes of all the running indoor units 21 are cooling mode, the target operation mode of the heat pump device is determined to be the full cooling mode (which can also be understood as the single cooling mode).

[0074] Therefore, when the target operating mode is full cooling mode, the controller 5 can control the liquid inlet valve assembly 3 to operate, thereby connecting the liquid inlet of the outdoor unit 1 to the second liquid outlet 203 of the indoor unit 2. At this point, the liquid outlet of the outdoor unit 1 is connected to the second liquid inlet 204 of the indoor unit 2. Furthermore, based on the cumulative heating power of the operating indoor units 21, the number of outdoor units 1 that match the cumulative heating power can be matched to obtain a target number. The target number of outdoor units 1 can then be activated to perform the refrigeration cycle.

[0075] For example, taking the total number of outdoor components 1 as 10, when 8 outdoor components 1 are started, the low-temperature circulating water coming out of the outdoor component 1 first passes through the liquid outlet valve group 4 and reaches the second liquid inlet 204 of the indoor unit 21. Then it absorbs heat in the indoor unit 21 and absorbs heat from the indoor air to achieve an indoor cooling effect. The circulating water flowing out of the second liquid outlet 203 of the indoor unit 21 is then cooled to medium-low temperature circulating water (for example, a temperature between 10 and 15 degrees Celsius). It then flows to the liquid inlet valve group 3 and finally enters the outdoor component 1 respectively. After absorbing the coldness of the low-temperature refrigerant in the outdoor component 1, it flows out from the liquid outlet of the outdoor component 1 for circulation.

[0076] Since the remaining outdoor components 1 are in shutdown mode, the conduction states of the liquid inlet three-way valve 31 and the liquid outlet three-way valve 41 at the liquid inlet of the outdoor components 1 in shutdown mode can be randomly determined and are not limited in detail here. Among them, the hot water pump 6 can be in shutdown mode.

[0077] Reference Figure 5 As shown, when the unit operation mode of the first operating number of indoor units 21 is the heating mode, and the unit operation mode of the second operating number of indoor units 21 is the cooling mode, the target operation mode of the heat pump device is determined to be the mixed operation mode (which can also be understood as the simultaneous cooling and heating mode).

[0078] When the target operating mode is a mixed operating mode, the number of outdoor units 1 that match the first cumulative heating power can be matched based on the first cumulative heating power of the first number of indoor units 21 operating in the heating mode to obtain a first target number. The first target number of outdoor units 1 are then started to perform a heating cycle. The inlet three-way valve 31 connected to the outdoor units 1 in the heating cycle is controlled to operate, thereby establishing a liquid connection between the liquid inlet of the outdoor units 1 in the heating cycle and the first liquid outlet 201. The outlet three-way valve 41 connected to the outdoor units 1 in the heating cycle is controlled to operate, thereby establishing a liquid connection between the liquid outlet of the outdoor units 1 in the heating cycle and the first liquid inlet 202.

[0079] Furthermore, based on the second cumulative heating power of the second number of indoor units 21 operating in the cooling mode, the number of outdoor units 1 that match the second cumulative heating power is matched to obtain a second target number, and the second target number of outdoor units 1 is activated to perform the refrigeration cycle. The liquid outlet three-way valve 41 connected to the outdoor units 1 in the refrigeration cycle is controlled to operate, thereby establishing a liquid path between the liquid inlet of the outdoor unit 1 in the refrigeration cycle and the second liquid outlet 203. The liquid outlet three-way valve 41 connected to the outdoor unit 1 in the refrigeration cycle is controlled to operate, thereby establishing a liquid path between the liquid outlet of the outdoor unit 1 in the refrigeration cycle and the second liquid inlet 204.

[0080] Considering that when the target operating mode is a full heating mode or a mixed cooling and heating mode, there may be a low outdoor ambient temperature, which may result in the risk of freezing and cracking of the pipes of the outdoor component 1 in the shutdown mode. Therefore, in some optional embodiments of the utility model, the method further includes:

[0081] When it is detected that the outdoor component 1 is in the shutdown mode, the outdoor environment temperature of the outdoor component 1 is detected by a temperature sensor.

[0082] When the outdoor ambient temperature is lower than the first temperature threshold, the outdoor component 1 in the shutdown mode is switched to the heating mode.

[0083] In an embodiment of the present invention, when it is detected that the outdoor component 1 is in the shutdown mode, the outdoor ambient temperature can also be detected based on the temperature sensor installed on the outer surface of the outdoor component 1. The temperature sensor is electrically connected to the controller 5. Therefore, when the temperature sensor transmits the outdoor ambient temperature to the controller 5, the controller 5 compares the outdoor ambient temperature. For example, a first temperature threshold can be preset. The first temperature threshold can be understood as a temperature threshold for determining whether the pipeline has a risk of freezing and cracking. It can be a value less than or equal to 1 degree Celsius. Therefore, when the outdoor ambient temperature is less than or equal to the first temperature threshold, the outdoor component 1 in the shutdown mode can be converted to the heating mode. At the same time, the liquid inlet three-way valve 31 and the liquid outlet three-way valve 41 associated with the outdoor component 1 are adjusted so that the outdoor component 1 performs a heating cycle.

[0084] In some optional embodiments, after the outdoor component 1 is switched from shutdown mode to heating mode, the temperature sensor continues to monitor the outdoor ambient temperature. If the outdoor ambient temperature exceeds a second temperature threshold, the outdoor component 1 is stopped, i.e., the heating mode is switched to shutdown mode. The second temperature threshold may include, but is not limited to, 3 degrees Celsius, 4 degrees Celsius, and 5 degrees Celsius. This ensures that the pipelines are not damaged by freezing while also saving energy and avoiding energy waste.

[0085] In summary, the present invention discloses a heat pump device and air conditioning system. The present invention may include at least two outdoor units 1, an indoor unit 2, a liquid inlet valve assembly 3, and a liquid outlet valve assembly 4. The indoor unit 2 includes at least two indoor units 21, wherein the liquid inlet of each outdoor unit 1 is connected to the first liquid outlet 201 of the indoor unit 2, and the liquid outlet of each outdoor unit 1 is connected to the first liquid inlet 202 of the indoor unit 2. The liquid inlet valve assembly 3 communicates with the second liquid outlet 203 of the indoor unit 2 and the liquid inlet of each outdoor unit 1, allowing the liquid inlet valve assembly 3 to regulate the liquid communication state of the liquid inlet of the outdoor unit 1. The liquid outlet valve assembly 4 communicates with the second liquid inlet 204 of the indoor unit 2 and the liquid outlet of each outdoor unit 1, allowing the liquid outlet valve assembly 4 to regulate the liquid communication state of the liquid outlet of the outdoor unit 1. Thus, the conduction state of the liquid inlet valve group 3 and the liquid outlet valve group 4 can be adjusted according to the cooling or heating mode of the indoor unit 21, and the functions of independent cooling, independent heating, or simultaneous cooling and heating can be achieved in multiple areas without adding a heat recovery module. This reduces the structural complexity of the heat pump device and improves the product adaptability of the heat pump device.

[0086] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0087] It is easy for those skilled in the art to think that any combination of the above embodiments is feasible, so any combination of the above embodiments is an implementation scheme of the present utility model. However, due to space limitations, this specification will not describe them in detail here.

[0088] In the description provided herein, numerous specific details are described. However, it is understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0089] Similarly, it should be understood that in order to streamline the present invention and aid in understanding one or more of the various aspects of the present invention, in the above description of exemplary embodiments of the present invention, various features of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof.

[0090] Furthermore, those skilled in the art will appreciate that although some embodiments described herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are intended to be within the scope of the present invention and to form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

Claims

1. A heat pump device, characterized in that: The heat pump device comprises: at least two outdoor components (1); An indoor unit assembly (2), the indoor unit assembly (2) comprising at least two indoor units (21), wherein the liquid inlet of each outdoor unit (1) is in communication with the first liquid outlet (201) of the indoor unit assembly (2), and the liquid outlet of each outdoor unit (1) is in communication with the first liquid inlet (202) of the indoor unit assembly (2); a liquid inlet valve group (3), the liquid inlet valve group (3) being in communication with the second liquid outlet (203) of the indoor unit assembly (2) and the liquid inlet of each outdoor assembly (1), so as to adjust the liquid path communication state of the liquid inlet of the outdoor assembly (1) through the liquid inlet valve group (3); A liquid outlet valve group (4) is connected to the second liquid inlet (204) of the indoor unit assembly (2) and the liquid outlet of each outdoor assembly (1), so as to adjust the liquid path connection state of the liquid outlet of the outdoor assembly (1) through the liquid outlet valve group (4).

2. The heat pump device according to claim 1, characterized in that The liquid inlet valve group (3) comprises at least two liquid inlet three-way valves (31), wherein the number of the liquid inlet three-way valves (31) is the same as the number of the outdoor components (1).

3. The heat pump device according to claim 2, characterized in that The liquid inlet of each outdoor component (1) is communicated with the first end of each liquid inlet three-way valve (31), the first liquid outlet (201) is communicated with the second end of each liquid inlet three-way valve (31), and the second liquid outlet (203) is communicated with the third end of each liquid inlet three-way valve (31).

4. The heat pump device according to claim 2, characterized in that The liquid inlet three-way valve (31) is an electric three-way valve. The heat pump device further comprises a controller (5). The controller (5) is electrically connected to the liquid inlet three-way valve (31) so as to adjust the liquid path conduction state of the liquid inlet three-way valve (31) through the controller (5).

5. The heat pump device according to claim 1, wherein The liquid outlet valve group (4) comprises at least two liquid outlet three-way valves (41), wherein the number of the liquid outlet three-way valves (41) is the same as the number of the outdoor components (1).

6. The heat pump device according to claim 5, characterized in that The liquid outlet of each outdoor component (1) is communicated with the first end of each liquid outlet three-way valve (41), the first liquid inlet (202) is communicated with the second end of each liquid outlet three-way valve (41), and the second liquid inlet (204) is communicated with the third end of each liquid outlet three-way valve (41).

7. The heat pump device according to claim 5, characterized in that The liquid outlet three-way valve (41) is an electric three-way valve, and the heat pump device further comprises a controller (5), wherein the controller (5) is electrically connected to the liquid outlet three-way valve (41) so as to adjust the liquid path conduction state of the liquid outlet three-way valve (41) through the controller (5).

8. The heat pump device according to claim 1, wherein The liquid inlet valve group (3) and the liquid outlet valve group (4) both adopt electric three-way valves. The heat pump device further comprises a controller (5). The liquid inlet valve group (3), the liquid outlet valve group (4), the indoor unit component (2) and the outdoor unit (1) are respectively electrically connected to the controller (5) so as to control the liquid path connection state between the indoor unit component (2) and the outdoor unit (1) through the controller (5).

9. The heat pump device according to claim 1, wherein The outdoor component (1) includes at least one outdoor unit.

10. The heat pump device according to claim 1, characterized in that The heat pump device further comprises a hot water pump (6), and the hot water pump (6) is arranged between the first liquid outlet (201) and the liquid inlet of the outdoor component (1).

11. The heat pump device according to claim 1, wherein The heat pump device further comprises a refrigeration water pump (7), and the refrigeration water pump (7) is arranged between the second liquid outlet (203) and the liquid inlet of the outdoor component (1).

12. An air conditioning system, characterized in that: The air conditioning system includes the heat pump device according to any one of claims 1 to 11.

Images