Heat pump water heater for air conditioner

Abstract

The present application discloses a heat pump water heater for an air conditioner. The water heater comprises an indoor unit, an outdoor unit, and a first drainage component. The indoor unit is in waterway communication with the outdoor unit by means of a circulation line, so as to form a refrigerating water circulation loop. The first drainage component is located in the interior of the indoor unit. A water intake end of the first drainage component is in communication with a drain pan of the indoor unit, and a water discharge end of the first drainage component is in communication with the circulation line, for draining condensed water from the drain pan into the circulation line.

Description

Air conditioner heat pump water heater

[0001] Cross Reference to Related Applications

[0002] This application claims priority to Chinese Patent Application No. 2025102161627, filed on February 26, 2025, entitled “Air conditioner heat pump water heater”, which is incorporated by reference herein in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of air conditioners, and in particular to an air conditioner heat pump water heater. BACKGROUND

[0004] The air conditioner heat pump water heater comprises an indoor unit and an outdoor unit. Condensate water is generated during refrigeration of the indoor unit and is collected in a water collecting tray of the indoor unit. Currently, a drain port is usually reserved in the indoor unit, and a condensate water drain pipe is installed at the drain port to drain the condensate water of the indoor unit. The separate drain pipe needs to be reserved in advance, which separately increases the pipe laying and increases the pipe cost and labor installation cost. In addition, the drain port is generally in an open state, which can cause air to flow back into the indoor unit, increasing the risk of noise generation of the indoor unit and the risk of insects crawling into the indoor unit. Therefore, how to avoid the problem of noise generation of the indoor unit and insects caused by the intercommunication between the drain pipe and the outside is an urgent problem in the industry. SUMMARY

[0005] The present application provides an air conditioner heat pump water heater to solve the problem of noise generation of the indoor unit and insects caused by the intercommunication between the drain pipe and the outside in the prior art.

[0006] The present application provides an air conditioner heat pump water heater, comprising:

[0007] The indoor unit and the outdoor unit are in water communication through a circulating pipe to form a refrigeration water circulating loop.

[0008] A first drain component is located inside the indoor unit. The water inlet end of the first drain component is in communication with the water collecting tray of the indoor unit, and the water outlet end of the first drain component is in communication with the circulating pipe, for draining the condensate water in the water collecting tray into the circulating pipe.

[0009] The air conditioner heat pump water heater provided by the present application further comprises:

[0010] A second drain component is in communication with the circulating pipe. The first drain component forms a condensate water discharge flow path with the second drain component through the circulating pipe, and the second drain component is used to discharge refrigeration water from the circulating pipe.

[0011] The first drain component of the air conditioner heat pump water heater provided by the present application comprises:

[0012] a first drain pipe, a water inlet end of the first drain pipe being connected with the water pan;

[0013] a first drain valve group, installed in the circulation pipeline, a water outlet end of the first drain pipe being communicated with the circulation pipeline through the first drain valve group, for draining the condensed water into the circulation pipeline;

[0014] in the refrigeration working condition, the first drain valve group makes the refrigeration water circulation loop conductive and the condensed water drainage flow path cut-off; in the drainage working condition, the first drain valve group makes the refrigeration water circulation loop cut-off and the condensed water drainage flow path conductive.

[0015] According to the air conditioner heat pump water heater provided by the application, the first drain component further comprises:

[0016] a drain pump, installed in the first drain pipe or the circulation pipeline, for pumping the condensed water into the circulation pipeline.

[0017] According to the air conditioner heat pump water heater provided by the application, the second drain component comprises:

[0018] a second drain valve group, in the refrigeration working condition, the second drain valve group makes the refrigeration water circulation loop conductive and the condensed water drainage flow path cut-off; in the drainage working condition, the second drain valve group makes the refrigeration water circulation loop cut-off and the condensed water drainage flow path conductive, so that the refrigeration water drains out of the circulation pipeline.

[0019] According to the air conditioner heat pump water heater provided by the application, the second drain component is located in a second casing of the outdoor unit; the second casing is provided with a drain port; the second drain component further comprises:

[0020] a second drain pipe, installed in the drain port; a water inlet of the second drain pipe is communicated with the circulation pipeline through the second drain valve group, for draining the refrigeration water out of the circulation pipeline in the drainage working condition.

[0021] According to the air conditioner heat pump water heater provided by the application, the first drain valve group comprises a first three-way valve or two parallel first on-off valves, or / and, the second drain valve group comprises a second three-way valve or two parallel second on-off valves.

[0022] According to the air conditioner heat pump water heater provided by the application, further comprising:

[0023] a circulation pump, located inside the indoor unit or inside the outdoor unit, the circulation pump being arranged in the circulation pipeline.

[0024] According to the air conditioner heat pump water heater provided in the application, the circulating pipeline comprises a water inlet pipe and a water outlet pipe, the circulating pump is installed on the water inlet pipe, and the water outlet end of the first water drainage component is communicated with the water outlet pipe.

[0025] According to the air conditioner heat pump water heater provided in the application, the air conditioner heat pump water heater further comprises:

[0026] A buffer water tank is installed on the circulating pipeline.

[0027] According to the air conditioner heat pump water heater provided in the application, the air conditioner heat pump water heater further comprises:

[0028] A water amount detection unit is arranged for detecting the actual water amount in the water pan.

[0029] A control unit is electrically connected with the water amount detection unit and the first water drainage component.

[0030] When the actual water amount is greater than the water amount threshold value, the control unit outputs a water drainage control instruction to control the first water drainage component to drain the condensed water into the circulating pipeline.

[0031] According to the air conditioner heat pump water heater provided in the application, the circulating pipeline is arranged, in the refrigeration working condition, the refrigeration water can flow between the outdoor unit and the indoor unit through the circulating pipeline to form a refrigeration water circulation loop, and the purpose of indoor refrigeration is achieved. The first water drainage component is arranged in communication with the circulating pipeline, and the first water drainage component is arranged in the indoor unit. The condensed water in the water pan can be drained into the circulating pipeline, so that the water drainage port communicated with the outside is not arranged on the indoor unit, and the water drainage pipe is not arranged separately. The pipeline cost and the labor installation cost are saved, and the problems of the indoor unit noise and insects caused by the water drainage pipe communicated with the outside in the prior art are solved. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0033] Fig. 1 is a structural schematic diagram of the air conditioner heat pump water heater provided in the embodiment of the application.

[0034] Fig. 2 is a structural schematic diagram of the air conditioner heat pump water heater provided in the embodiment of the application.

[0035] Fig. 3 is a structural schematic diagram of the air conditioner heat pump water heater provided in the embodiment of the application.

[0036] 100, indoor unit; 110, first casing; 120, coil; 130, water pan; 200, outdoor unit; 210, second casing; 220, first heat exchanger; 300, first drainage component; 310, first drainage pipe; 320, first drainage valve group; 330, drainage pump; 400, second drainage component; 410, second drainage valve group; 420, second drainage pipe; 500, circulating pump; 600, circulating pipeline; 610, water inlet pipe; 620, water outlet pipe; 700, water amount detection unit; 810, indoor control panel; 820, outdoor control panel. DETAILED DESCRIPTION

[0037] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below with reference to the drawings in the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0038] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0039] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those of ordinary skill in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0040] The structure and working principle of the air-conditioning heat pump water heater of the present application will be described in detail below with reference to FIGS. 1 to 3.

[0041] As shown in FIGS. 1-3, the application provides an air conditioner heat pump water heater. The air conditioner heat pump water heater comprises an indoor unit 100, an outdoor unit 200 and a first drainage component 300; the indoor unit 100 is in water communication with the outdoor unit 200 through a circulating pipeline 600 to form a refrigeration water circulation loop; the first drainage component 300 is located inside the indoor unit 100; a water inlet end of the first drainage component 300 is in communication with a water pan 130 of the indoor unit 100, and a water outlet end of the first drainage component 300 is in communication with the circulating pipeline 600, for draining the condensed water in the water pan 130 into the circulating pipeline 600.

[0042] In the embodiment, by arranging the circulating pipeline 600, in the refrigeration working condition, the refrigeration water can flow between the outdoor unit 200 and the indoor unit 100 through the circulating pipeline 600 to form a refrigeration water circulation loop, so as to achieve the purpose of indoor refrigeration. By arranging the first drainage component 300 in communication with the circulating pipeline 600, and locating the first drainage component 300 inside the indoor unit 100, the condensed water in the water pan 130 can be drained into the circulating pipeline 600, so as to avoid opening a separate drainage port in communication with the outside on the indoor unit 100, and avoid laying a separate drainage pipe, which not only saves the pipeline cost and labor installation cost, but also solves the problems of noise and insects of the indoor unit 100 caused by the mutual communication between the drainage pipe and the outside in the prior art.

[0043] Further, the indoor unit 100 comprises a first casing 110, and a coil pipe 120 and a water pan 130 located inside the first casing 110; the water pan 130 is located below the coil pipe 120; the coil pipe 120 is in communication with the outdoor unit 200 through the circulating pipeline 600 to form a refrigeration water circulation loop; in the refrigeration working condition, the condensed water on the outer side surface of the coil pipe 120 drops into the water pan 130, and the condensed water is gathered in the water pan 130.

[0044] Further, the outdoor unit 200 comprises a second casing 210, and a first heat exchanger 220 located inside the second casing 210; the first heat exchanger 220 has a refrigerant flow channel and a water flow channel; the refrigerant flow channel is used for conveying refrigerant, and the water flow channel is used for conveying water. The refrigerant flow channel is in communication with a compressor, a second heat exchanger, an expansion valve and the like to form a refrigerant circulation loop. The water flow channel is in communication with the coil pipe 120 through the circulating pipeline 600 to form a refrigeration water circulation loop. In the refrigeration working condition, the refrigeration water in the water circulation pipeline 600 flows into the water flow channel to exchange heat with the low-temperature refrigerant in the refrigerant flow channel, and the refrigeration water is cooled; and then flows to the coil pipe 120 through the circulating pipeline 600 to achieve the purpose of indoor refrigeration.

[0045] Further, the air conditioner heat pump water heater further comprises a circulating pump 500; the circulating pump 500 is located in the interior of the indoor unit 100 or in the interior of the outdoor unit 200, and is arranged in the circulating pipeline 600, and is used for providing circulating power for the refrigeration water. Specifically, the circulating pump 500 is started, and the refrigeration water flows between the coil pipe 120 of the indoor unit 100 and the first heat exchanger 220 of the outdoor unit 200 through the circulating pipeline 600, so as to form a refrigeration water circulating loop. By additionally arranging the circulating pump 500, it can be ensured that the refrigeration water can circulate smoothly.

[0046] Specifically, the circulating pump 500 is installed in the interior of the second shell 210, and is in communication with the water inlet pipe 610 of the circulating pipeline 600. The circulating pump 500 is forward circulating, and can pump the refrigeration water in the first heat exchanger 220 to the water inlet of the coil pipe 120, and provides power for the circulation of the refrigeration water in the circulating pipeline 600.

[0047] It should be noted that in the refrigeration working condition, the refrigeration water with a temperature lower than the indoor environment temperature enters the coil pipe 120, so as to realize refrigeration to the indoor environment; and in the heating working condition, the refrigeration water with a temperature higher than the indoor environment temperature enters the coil pipe 120, so as to realize heating to the indoor environment.

[0048] Further, the circulating pipeline 600 comprises a water inlet pipe 610 and a water outlet pipe 620; the water inlet of the indoor unit 100 is in communication with the water outlet of the outdoor unit 200 through the water inlet pipe 610, and the water outlet of the indoor unit 100 is in communication with the water inlet of the outdoor unit 200 through the water outlet pipe 620. Specifically, the water inlet of the coil pipe 120 is in communication with the water outlet of the water flow channel through the water inlet pipe 610, and the water outlet of the coil pipe 120 is in communication with the water inlet of the water flow channel through the water outlet pipe 620.

[0049] Further, the circulating pump 500 can be installed in the water inlet pipe 610 or the water outlet pipe 620.

[0050] Preferably, the circulating pump 500 can be installed in the water inlet pipe 610, and the water outlet end of the first drainage component 300 is in communication with the water outlet pipe 620. In the refrigeration working condition, the circulating pump 500 is started, the first drainage component 300 makes the condensed water drainage flow path cut off, makes the refrigeration water circulating loop conductive, and ensures that the refrigeration water reciprocates between the first heat exchanger 220, the water inlet pipe 610, the coil pipe 120 and the water outlet pipe 620. In the drainage working condition, the circulating pump 500 can be stopped, the power source of the first drainage component 300 is started, and the first drainage component 300 makes the condensed water drainage flow path conductive, so as to cut off the refrigeration water circulating loop, and ensure that the condensed water can flow into the circulating pipeline 600 smoothly.

[0051] In some embodiments, the air conditioner heat pump water heater further comprises a buffer water tank; the buffer water tank is arranged in the circulation pipeline 600 and used for buffering the refrigeration water in the circulation pipeline 600. At this time, the condensate water discharged by the first drainage component 300 into the circulation pipeline 600 can also be stored in the buffer water tank.

[0052] In some other embodiments, the buffer water tank can not be arranged on the circulation pipeline 600. The amount of refrigeration water in the refrigeration water circulation loop is generally fixed. In the case that the condensate water is discharged into the circulation pipeline 600, an equal amount of water in the circulation pipeline 600 can be discharged at the same time to ensure that the amount of refrigeration water in the refrigeration water circulation loop is fixed.

[0053] It can be understood that the water level in the buffer water tank needs to be between the minimum water level line and the maximum water level line. When exceeding the maximum water level line, part of the water needs to be discharged to restore the water level to between the minimum water level line and the maximum water level line.

[0054] In some embodiments, the air conditioner heat pump water heater further comprises a second drainage component 400; the first drainage component 300 and the second drainage component 400 form a condensate water discharge flow path through the circulation pipeline 600; the second drainage component 400 is used for discharging the refrigeration water out of the circulation pipeline 600. Specifically, the second drainage component 400 is used for discharging an equal amount of refrigeration water out of the circulation pipeline 600 as the condensate water flowing into the circulation pipeline 600. In this way, it can be ensured that the amount of refrigeration water in the refrigeration water circulation loop is fixed.

[0055] Further, the second drainage component 400 comprises a second drainage valve group 410; in the refrigeration working condition, the second drainage valve group 410 makes the refrigeration water circulation loop conductive and the condensate water discharge flow path cut off; in the drainage working condition, the second drainage valve group 410 makes the refrigeration water circulation loop cut off and the condensate water discharge flow path conductive, which is used for discharging the condensate water into the circulation pipeline 600. Avoiding opening the drainage port on the first casing 110 to communicate with the outside, the problem of indoor unit noise and insects caused by the drainage pipe communicating with the outside in the prior art is solved.

[0056] Further, the second drainage component 400 can be arranged between the indoor unit 100 and the outdoor unit 200 or in the second casing 210 of the outdoor unit 200.

[0057] Further, the second drainage component 400 is located in the second casing 210 of the outdoor unit 200; the second casing 210 is provided with a drainage port; the second drainage component 400 further comprises a second drainage pipe 420; the second drainage pipe 420 is installed on the drainage port; the water inlet of the second drainage pipe 420 communicates with the circulation pipeline 600 through the second drainage valve group 410 and is used for discharging the condensate water out of the circulation pipeline 600 in the drainage working condition.

[0058] Further, the second drainage valve group 410 includes a second three-way valve or two parallel second on-off valves.

[0059] As shown in FIG. 1 and FIG. 3, the second drainage pipe 420 is connected to the water outlet pipe 620 through a second three-way valve. Specifically, the first interface of the second three-way valve is connected to the water outlet of the coil pipe 120, the second interface of the second three-way valve is connected to the water inlet of the water flow channel, and the third interface of the second three-way valve is connected to the second drainage pipe 420. In the refrigeration working condition, the refrigeration water flow channel formed by the first interface and the second interface is conducted, and the drainage flow channel formed by the first interface and the third interface is cut off, so as to ensure that the refrigeration water can circulate between the indoor unit 100 and the outdoor unit 200, and to achieve the refrigeration of the indoor. In the drainage working condition, the refrigeration water flow channel formed by the first interface and the second interface is cut off, and the drainage flow channel formed by the first interface and the third interface is conducted, so that the first drainage component 300 mixes the condensed water into the circulating pipeline 600 and the original refrigeration water, and the mixed water is discharged from the second drainage pipe 420, so as to ensure that the amount of refrigeration water in the refrigeration water circulation loop of the water heater is fixed.

[0060] As shown in FIG. 2, the second drainage valve group 410 includes two parallel second on-off valves; the water inlet of the second drainage pipe 420 is connected to the water outlet pipe 620, the first second on-off valve is arranged in the water outlet pipe 620, and the second second on-off valve is arranged in the second drainage pipe 420. In the refrigeration working condition, the first second on-off valve is conducted, and the second second on-off valve is cut off, so as to ensure that the refrigeration water circulation loop circulates smoothly, and the refrigeration water cannot be discharged from the second drainage pipe 420. In the drainage working condition, the first second on-off valve is cut off, and the second second on-off valve is conducted, so that the refrigeration water circulation loop cannot circulate, and the refrigeration water can be discharged from the second drainage pipe 420.

[0061] In some embodiments, the first drainage component 300 includes a first drainage pipe 310 and a first drainage valve group 320; the water inlet end of the first drainage pipe 310 is connected to the water collecting tray 130; the first drainage valve group 320 is installed in the circulating pipeline 600; the water outlet end of the first drainage pipe 310 is connected to the circulating pipeline 600 through the first drainage valve group 320, for discharging the condensed water into the circulating pipeline 600; in the refrigeration working condition, the first drainage valve group 320 makes the refrigeration water circulation loop conducted and the condensed water discharge flow path cut off; in the drainage working condition, the first drainage valve group 320 makes the refrigeration water circulation loop cut off and the condensed water drainage flow path conducted.

[0062] In the present embodiment, in the refrigeration working condition, the first drainage valve group 320 can make the refrigeration water circulation loop conductive, while cutting off the condensate water discharge flow path, ensuring the normal operation of the refrigeration system, and avoiding the interference of the condensate water on the refrigeration effect. In the drainage working condition, the first drainage valve group 320 is switched to cut off the refrigeration water circulation loop, while making the condensate water discharge flow path conductive, ensuring that the condensate water can be discharged in time and effectively, and avoiding the damage of the accumulated water to the system. The first drainage component 300 integrates the first drainage pipe 310 and the first drainage valve group 320, reducing the additional connecting components and installation steps, and improving the overall compactness and integration of the system. This design helps to reduce the complexity and maintenance cost of the system, while improving the stability and reliability of the system.

[0063] For example, the first drainage valve group 320 and the circulating pump 500 can be installed on the water outlet pipe 620, the first drainage pipe 310 is used to guide the condensate water in the water pan 130 to the water outlet pipe 620, and the circulating pump 500 is located on the side of the first drainage valve group 320 away from the water pan 130. In the refrigeration working condition, by controlling the first drainage valve group 320, the refrigeration water circulation loop is made conductive, the condensate water discharge flow path is cut off, and the circulating pump 500 is started, which provides power for the circulation of the refrigeration water, ensuring that the refrigeration water can flow between the indoor unit 100 and the outdoor unit 200. In the drainage working condition, by controlling the first drainage valve group 320, the refrigeration water circulation loop is cut off, the condensate water discharge flow path is made conductive, and the circulating pump 500 is started, which can pump the condensate water in the water pan 130 to the water outlet pipe 620; in combination with the second drainage component 400, an equal amount of refrigeration water flowing into the water outlet pipe 620 can be discharged.

[0064] For example, the first drainage valve group 320 is installed on the water inlet pipe 610, and the circulating pump 500 is also installed on the water inlet pipe 610, and the circulating pump 500 is located on the side of the first drainage valve group 320 away from the water pan 120. In the refrigeration working condition, by controlling the first drainage valve group 320, the refrigeration water circulation loop is made conductive, the condensate water discharge flow path is cut off, and the circulating pump 500 is started, which provides power for the circulation of the refrigeration water, ensuring that the refrigeration water can flow between the indoor unit 100 and the outdoor unit 200. In the drainage working condition, by controlling the first drainage valve group 320, the refrigeration water circulation loop is cut off, the condensate water discharge flow path is made conductive, and the circulating pump 500 is started, which can pump the condensate water in the water pan 130 to the water outlet pipe 620; in combination with the second drainage component 400, an equal amount of refrigeration water flowing into the water outlet pipe 620 can be discharged.

[0065] Further, the first drainage valve group 320 includes a first three-way valve or two first on-off valves connected in parallel.

[0066] As shown in FIG. 1, the first drain valve group 320 is exemplarily a first three-way valve; the first three-way valve is installed on the water outlet pipe 620, a first port of the first three-way valve is in communication with the water outlet of the coil pipe 120, a second port of the first three-way valve is in communication with a first port of a second three-way valve, and a third port of the first three-way valve is in communication with the water pan 130 through the first drain pipe 310. In the refrigeration working condition, the first port and the second port of the first three-way valve are in communication with each other, and the first port and the third port of the first three-way valve are cut off. In the drainage working condition, the first port and the second port of the first three-way valve are cut off, and the first port and the third port of the first three-way valve are in communication. At this time, the circulating pump 500 can be arranged between the second port of the first three-way valve and the first port of the second three-way valve.

[0067] As shown in FIG. 2, the first drain valve group 320 includes two first on-off valves arranged side by side; a first first on-off valve is arranged on the water outlet pipe 620, and a second first on-off valve is arranged on the first drain pipe 310. In the refrigeration working condition, the first first on-off valve is opened, and the second first on-off valve is cut off. In the drainage working condition, the first on-off valve is cut off, and the second first on-off valve is opened.

[0068] In some embodiments, the first drain component 300 further includes a drain pump 330; the drain pump 330 is installed on the first drain pipe 310 or the circulating pipeline 600, and is used for pumping the condensed water into the circulating pipeline 600. The special drain pump 330 is arranged for the condensed water discharge, which is convenient for control.

[0069] Specifically, the drain pump 330 and the first drain valve group 320 are arranged on the water outlet pipe 620, the circulating pump 500 is arranged in the outdoor unit 200 and arranged on the water inlet pipe 610; the drain pump 330 is arranged on the side of the first drain valve group 320 away from the coil pipe 120.

[0070] In some embodiments, the air conditioner heat pump water heater further includes a water amount detection unit 700 and a control unit; the water amount detection unit 700 is used for detecting an actual water amount in the water pan 130; the control unit is electrically connected with the water amount detection unit 700; in the case that the actual water amount is greater than a water amount threshold value, the control unit outputs a drain control instruction to control the first drain component 300 to be opened, so as to discharge the condensed water into the circulating pipeline 600.

[0071] Specifically, in the case that the actual water amount is greater than the water amount threshold value, the control unit outputs the drain control instruction to control the first drain component 300 to be opened, so as to discharge the condensed water into the circulating pipeline 600, including:

[0072] In the case that the actual water amount is greater than the water amount threshold value, the control unit outputs the drain control instruction to control the first drain component 300 and the second drain component 400, so as to cut off the refrigeration water circulating loop and make the condensed water discharge flow path conductive.

[0073] Further, in the case that the actual water amount is not greater than the water amount threshold, the control unit outputs a refrigerating water circulation control instruction to control the circulation pump 500 to start, so that the refrigerating water circulates between the indoor unit 100 and the outdoor unit 200.

[0074] Specifically, the water amount detection unit 700 comprises a water amount detection sensor or a float switch; and the water amount detection unit 700 is installed in the water pan 130.

[0075] Specifically, the control unit comprises an indoor control panel 810 and an outdoor control panel 820; the indoor control panel 810 is installed in the first casing 110, and the outdoor control panel 820 is installed in the second casing 210. The indoor control panel 810 is electrically connected with the water amount detection unit 700 and the first drainage component 300; and the outdoor control panel 820 is electrically connected with the circulation pump 500 and the second drainage component 400.

[0076] In the case that the actual water amount is greater than the water amount threshold, the indoor control panel 810 controls the first drainage component 300 to drain the condensing water into the circulation pipeline 600, and the outdoor control panel 820 controls the second drainage component 400 to drain the refrigerating water in the circulation pipeline 600 equivalent to the condensing water.

[0077] Hereinafter, the structure and working process of the air conditioner heat pump water heater will be described in detail with reference to FIG. 1.

[0078] The air conditioner heat pump water heater of the embodiment comprises an outdoor unit 200, an indoor unit 100, a water inlet pipe 610, a water outlet pipe 620, a circulating pump 500, a drainage pump 330, a first three-way valve, a second three-way valve, a first drainage pipe 310 and a second drainage pipe 420; the first casing 110 of the indoor unit 100 is provided with a coil 120 and a water pan 130; the water pan 130 is located below the coil 120 and used for collecting condensed water. The second casing 210 of the outdoor unit 200 is provided with a first heat exchanger 220, and the first heat exchanger 220 has a refrigerant flow channel and a water flow channel; the refrigerating water in the water flow channel exchanges heat with the refrigerant in the refrigerant flow channel, and the refrigerant is used for cooling or heating the refrigerating water. The water inlet of the coil 120 is communicated with the water outlet of the water flow channel through the water inlet pipe 610, and the water outlet of the coil 120 is communicated with the water inlet of the water flow channel through the water outlet pipe 620, so as to form a refrigerating water circulation loop. The circulating pump 500 is located in the second casing 210 of the outdoor unit 200 and is installed on the water inlet pipe 610. The drainage pump 330 and the first three-way valve are both located in the first casing 110 of the indoor unit 100 and are both installed on the water outlet pipe 620; the first three-way valve is also communicated with the water pan 130 through the first drainage pipe 310; the drainage pump 330 is located on the side of the first three-way valve away from the coil 120. The second three-way valve is located in the second casing 210 of the outdoor unit 200 and is installed on the water outlet pipe 620, and the second three-way valve is also communicated with the outside through the second drainage pipe 420. The first three-way valve and the second three-way valve can both be solenoid valves. A float switch is arranged in the water pan 130 and used for detecting the actual water amount of the condensed water in the water pan 130. A control unit is electrically connected with the float switch, the first three-way valve, the second three-way valve, the circulating pump 500 and the drainage pump 330.

[0079] When the actual water amount is not greater than the water amount threshold value, the control unit outputs a refrigerating water circulation control instruction; the indoor control panel 810 controls the first interface and the second interface of the first three-way valve to be communicated and the first interface and the third interface to be cut off, and controls the drainage pump 330 to stop; the outdoor control panel 820 controls the first interface and the second interface of the second three-way valve to be communicated and the first interface and the third interface to be cut off, and controls the circulating pump 500 to start; at this time, the refrigerating water in the water flow channel flows through the circulating pump 500, the coil 120, the first interface of the first three-way valve, the second interface of the first three-way valve, the drainage pump 330, the first interface of the second three-way valve and the second interface of the second three-way valve in sequence and then returns to the water flow channel, so as to form a refrigerating water circulation loop.

[0080] In the case that the actual water quantity is greater than the water quantity threshold value, the control unit outputs a drainage control instruction, the indoor control panel 810 controls the first interface and the second interface of the first three-way valve to be cut off, and the first interface and the third interface to be conducted, and controls the drainage pump 330 to be started; the outdoor control panel 820 controls the first interface and the second interface of the second three-way valve to be cut off, and the first interface and the third interface to be conducted, and controls the circulating pump 500 to be stopped; at this time, the condensed water in the water pan 130 passes through the third interface of the first three-way valve, the second interface of the first three-way valve, the drainage pump 330, the water outlet pipe 620, the first interface of the second three-way valve, and the third interface of the second three-way valve into the second drainage pipe 420 in sequence, to form a condensed water discharge flow path, so as to discharge the condensed water to the outside.

[0081] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An air conditioning heat pump water heater, comprising: An indoor unit (100) and an outdoor unit (200) are provided, wherein the indoor unit (100) is connected to the water circuit of the outdoor unit (200) through a circulation pipe (600) to form a chilled water circulation loop; The first drainage component (300) is located inside the indoor unit (100); the inlet end of the first drainage component (300) is connected to the water receiving tray (130) of the indoor unit (100), and the outlet end of the first drainage component (300) is connected to the circulation pipe (600) for draining the condensate in the water receiving tray (130) into the circulation pipe (600).

2. The air conditioning heat pump water heater according to claim 1 further includes: The second drain component (400) is connected to the circulation pipe (600). The first drain component (300) and the second drain component (400) form a condensate discharge path through the circulation pipe (600). The second drain component (400) is used to discharge chilled water out of the circulation pipe (600).

3. The air conditioning heat pump water heater according to claim 2, wherein, The first drainage component (300) includes: The first drain pipe (310) has its inlet end connected to the water receiving tray (130). The first drain valve assembly (320) is installed in the circulation pipeline (600); the outlet end of the first drain pipe (310) is connected to the circulation pipeline (600) through the first drain valve assembly (320) to discharge the condensate into the circulation pipeline (600); In refrigeration mode, the first drain valve assembly (320) opens the refrigeration water circulation loop and closes the condensate discharge path; in drainage mode, the first drain valve assembly (320) closes the refrigeration water circulation loop and opens the condensate discharge path.

4. The air conditioning heat pump water heater according to claim 3, wherein, The first drainage component (300) further includes: A drain pump (330), installed in the first drain pipe (310) or the circulation pipe (600), is used to pump condensate into the circulation pipe (600).

5. The air conditioning heat pump water heater according to claim 3, wherein, The second drainage component (400) includes: The second drain valve assembly (410) in the refrigeration condition enables the refrigeration water circulation loop to be open and the condensate discharge path to be closed; in the drain condition, the second drain valve assembly (410) enables the refrigeration water circulation loop to be closed and the condensate discharge path to be open, so that the refrigeration water is discharged from the circulation pipe (600).

6. The air conditioning heat pump water heater according to claim 5, wherein, The second drainage component (400) is located inside the second housing (210) of the outdoor unit (200); The second housing (210) has a drain outlet; The second drainage component (400) further includes: The second drain pipe (420) is installed at the drain outlet; The inlet of the second drain pipe (420) is connected to the circulation pipe (600) through the second drain valve assembly (410) to discharge chilled water from the circulation pipe (600) under the drainage condition.

7. The air conditioning heat pump water heater according to claim 5, wherein, The first drain valve assembly (320) includes a first three-way valve or two first switching valves connected in parallel, and / or the second drain valve assembly (410) includes a second three-way valve or two second switching valves connected in parallel.

8. The air conditioning heat pump water heater according to claim 1 further includes: A circulation pump (500) is located inside the indoor unit (100) or inside the outdoor unit (200), and the circulation pump (500) is installed in the circulation pipeline (600).

9. The air conditioning heat pump water heater according to claim 8, wherein, The circulation pipeline (600) includes an inlet pipe (610) and an outlet pipe (620). The circulation pump (500) is installed in the inlet pipe (610), and the outlet end of the first drainage component (300) is connected to the outlet pipe (620).

10. The air conditioning heat pump water heater according to claim 1, further comprising: A buffer water tank is installed in the circulation pipeline (600).

11. The air conditioning heat pump water heater according to any one of claims 1 to 10, further comprising: A water volume detection unit (700) is used to detect the actual water volume in the water receiving tray (130); The control unit is electrically connected to the water volume detection unit (700) and the first drainage component (300); When the actual water volume is greater than the water volume threshold, the control unit outputs a drainage control command to control the first drainage component (300) to discharge the condensate into the circulation pipeline (600).

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