Air conditioner and water heating all-in-one machine with temperature control and dehumidification functions

Abstract

The utility model provides an air conditioner and hot water all-in-one machine with temperature control and dehumidification functions, which comprises a compressor, an outdoor heat exchanger, a first indoor heat exchanger, a second indoor heat exchanger, a water tank and a liquid storage device, one end of the second indoor heat exchanger communicates with the exhaust end or the air suction end of the compressor, the other end of the second indoor heat exchanger communicates with the liquid storage device, and the other end of the outdoor heat exchanger, the other end of the first indoor heat exchanger or the other end of the water tank communicates with the interior of the liquid storage device. The air suction end of the compressor communicates with one end of the outdoor heat exchanger or one end of the first indoor heat exchanger or one end of the water tank. According to the utility model, the modes of refrigeration and water heating, heating and water heating and dehumidification and water heating can be realized at the same time, the system can also adapt to the refrigerant circulation amount in different modes, the problem of high power consumption is solved, the problem that the requirement of comfort cannot be met is solved, and the system runs efficiently.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning technical field, concretely relates to a kind of air conditioner hot water integrated machine with temperature control dehumidification function. BACKGROUND

[0002] Household variable frequency air conditioner has been popular in China, is used for refrigeration and dehumidification in summer, is used for heating in winter. In order to meet the dehumidification demand, the evaporation temperature of air conditioner is usually lower than the dew point temperature of return air; and in order to meet the comfort demand, the return air temperature should not be too low. When household variable frequency air conditioner is in low load refrigeration operation, the evaporation temperature is usually high, in order to take into account dehumidification, the indoor unit air volume needs to be reduced to reduce the evaporation temperature to achieve the purpose of dehumidification, at this time the refrigeration energy efficiency ratio and unit energy consumption dehumidification capacity are reduced.

[0003] The relative humidity is high in the transition season (no need for air conditioning refrigeration or heating) in the middle and lower reaches of Yangtze River and the areas south of China, especially during the "plum rain season" and "back to the south of the day", dehumidification is needed to solve the comfort and health problems caused by humidity. When conventional household variable frequency air conditioner is in refrigeration and dehumidification in the transition season, the indoor return air temperature and the dew point of return air gradually decrease, the indoor relative humidity decreases to a certain extent and then does not decrease or even increases, resulting in cool and not dry indoor; on the other hand, the decrease of evaporation temperature and the dew point of return air leads to significant decrease of unit energy consumption dehumidification capacity of air conditioner. Therefore, in the humid weather in the transition season, conventional household variable frequency air conditioner refrigeration and dehumidification cannot meet the comfort demand of dehumidification, and is usually in idle state.

[0004] About half of the population in China is distributed in the middle and lower reaches of Yangtze River and the areas south of China, the cumulative occurrence time of refrigeration in summer and the cumulative occurrence time of humid weather in the transition season are relatively long, and the demand for refrigeration and dehumidification is large. When conventional air conditioning system is in refrigeration and temperature control dehumidification mode, heat needs to be discharged to the outdoor, and the recovery of this part of heat in the form of hot water can meet the demand for domestic hot water.

[0005] However, the existing household variable frequency air conditioner cannot realize the modes of refrigeration + hot water, heating + hot water, dehumidification + hot water at the same time, and cannot adjust the required refrigerant injection amount according to the refrigeration amount required in different modes, resulting in high power consumption or failure to meet the comfort demand, and the efficient operation of air conditioner cannot be realized.

[0006] Since the household variable frequency air conditioner in the prior art cannot realize the modes of refrigeration + hot water, heating + hot water, dehumidification + hot water at the same time, and cannot adjust the required refrigerant injection amount according to the refrigeration amount required in different modes, resulting in high power consumption or failure to meet the comfort demand, etc. Technical problems, therefore, the utility model research designs a kind of air conditioner hot water integrated machine with temperature control dehumidification function. UTILITY MODEL CONTENTS

[0007] Therefore, the utility model discloses to overcome the defects that the household variable frequency air conditioner in the prior art cannot simultaneously realize the modes of refrigeration + hot water, heating + hot water, dehumidification + hot water and cannot adjust the required refrigerant injection amount according to the refrigerating capacity needs of different modes, resulting in high power consumption or failure to meet the requirement of comfort, thereby providing an air conditioner and water heater integrated machine with temperature control and dehumidification functions.

[0008] To solve the above problems, the utility model provides a kind of air conditioner and water heater integrated machine with temperature control and dehumidification functions, it includes:

[0009] Compressor, outdoor heat exchanger, first indoor heat exchanger, second indoor heat exchanger, water tank and liquid storage device, the exhaust end of the compressor can be communicated to one end of the outdoor heat exchanger, or communicated to one end of the first indoor heat exchanger, or communicated to one end of the water tank, the other end of the outdoor heat exchanger is communicated to the inside of the liquid storage device, the other end of the first indoor heat exchanger is communicated to the inside of the liquid storage device, one end of the second indoor heat exchanger can be communicated to the exhaust end or suction end of the compressor, the other end of the second indoor heat exchanger is communicated to the inside of the liquid storage device, the other end of the water tank is communicated to the inside of the liquid storage device, the suction end of the compressor can be communicated to the one end of the outdoor heat exchanger or communicated to the one end of the first indoor heat exchanger, or communicated to the one end of the water tank.

[0010] In some embodiments,

[0011] Also includes first four-way valve, the first four-way valve includes first D end, first E end, first S end and first C end, the first four-way valve can be switched between the following 2 communication states: the first D end and the first C end are communicated, while the first E end and the first S end are communicated; in the second state, the first D end and the first E end are communicated, while the first C end and the first S end are communicated,

[0012] The first D end is communicated to the exhaust end of the compressor through first pipeline, the first C end is communicated to one end of the outdoor heat exchanger through second pipeline, the first S end is communicated to the suction end of the compressor through third pipeline, and the first E end is communicated to one end of the first indoor heat exchanger through fourth pipeline.

[0013] In some embodiments,

[0014] The other end of the outdoor heat exchanger is connected to the inside of the liquid storage device through a fifth pipeline, the other end of the first indoor heat exchanger is connected to the inside of the liquid storage device through a sixth pipeline, the other end of the second indoor heat exchanger is connected to the inside of the liquid storage device through a seventh pipeline, and the other end of the water tank is connected to the inside of the liquid storage device through an eighth pipeline.

[0015] In some embodiments,

[0016] A first throttling device is arranged on the fifth pipeline, a second throttling device is arranged on the seventh pipeline, the sixth pipeline and the seventh pipeline are connected to the liquid storage device through a fifteenth pipeline after being merged, a second throttling device is arranged on the fifteenth pipeline, a fourth throttling device is arranged on the eighth pipeline, and the first indoor heat exchanger and the second indoor heat exchanger are arranged on the same airflow path in the room.

[0017] In some embodiments,

[0018] The end of the fifth pipeline connected to the inside of the liquid storage device is a first end, the first end is higher than the inner bottom surface of the liquid storage device by a first height, the end of the fifteenth pipeline connected to the inside of the liquid storage device is a second end, the second end is higher than the inner bottom surface of the liquid storage device by a second height, the end of the eighth pipeline connected to the inside of the liquid storage device is a third end, the third end is higher than the inner bottom surface of the liquid storage device by a third height, the distance between the first end and the top of the liquid storage device is a fourth height, and the fourth height is greater than the first height, the distance between the second end and the top of the liquid storage device is a fifth height, and the fifth height is greater than the second height, the distance between the third end and the top of the liquid storage device is a sixth height, and the sixth height is greater than the third height.

[0019] In some embodiments,

[0020] The liquid storage device has a middle height separation line with half of the height, the distance between the first end and the middle height separation line is a seventh height, and the seventh height is greater than the first height, the distance between the second end and the middle height separation line is an eighth height, and the eighth height is greater than the second height, the distance between the third end and the middle height separation line is a ninth height, and the ninth height is greater than the third height.

[0021] In some embodiments,

[0022] Further comprising an indoor fan and an outdoor fan, the outdoor fan opposite to the outdoor heat exchanger to drive air flow to exchange heat with refrigerant in the outdoor heat exchanger, the indoor fan opposite to at least part of structure of the first indoor heat exchanger, the indoor fan also opposite to at least part of structure of the second indoor heat exchanger to drive air flow to exchange heat with refrigerant in the first indoor heat exchanger and the second indoor heat exchanger.

[0023] In some embodiments,

[0024] Further comprising a second four-way valve, the second four-way valve comprising a second D port, a second C port, a second S port and a second E port, the second four-way valve switchable between the following two communication states: in a first state, the second D port communicates with the second C port, while the second S port communicates with the second E port; in a second state, the second D port communicates with the second E port, while the second C port communicates with the second S port,

[0025] The second D port communicates to the discharge end of the compressor through a ninth pipeline, the second S port is communicable to the suction end of the compressor through a tenth pipeline, the second C port is communicable to the one end of the water tank through an eleventh pipeline, and the second E port is communicable to the one end of the second indoor heat exchanger through a twelfth pipeline;

[0026] The eleventh pipeline contacts the water tank through a refrigerant pipeline and exchanges heat with water in the water tank, one end of the water tank being one end of the refrigerant pipeline, the other end of the water tank being the other end of the refrigerant pipeline, the other end of the refrigerant pipeline communicating to the eighth pipeline, the refrigerant pipeline forming at least part of structure of a water tank heat exchanger.

[0027] In some embodiments,

[0028] The compressor comprises a first cylinder and a second cylinder, the first cylinder having a first suction port, the second cylinder having a second suction port, the first S port of the first four-way valve communicating to the first suction port of the first cylinder through the third pipeline, and the second S port of the second four-way valve communicating to the second suction port of the second cylinder through the tenth pipeline;

[0029] Further comprising a thirteenth pipeline, one end of the thirteenth pipeline communicating with the third pipeline, the other end of the thirteenth pipeline communicating with the tenth pipeline, and a control valve being arranged on the thirteenth pipeline.

[0030] In some embodiments,

[0031] The auxiliary compression cylinder has a third suction port, the third suction port is communicated to the upper end of the inside of the liquid storage device through the fourteenth pipeline, and the gas discharged from the auxiliary compression cylinder is mixed with the gas discharged from the first cylinder and the gas discharged from the second cylinder in the shell of the compressor and is discharged through the first pipeline and / or the ninth pipeline.

[0032] In some embodiments,

[0033] The first indoor heat exchanger, the second indoor heat exchanger and the third throttling device constitute at least part of the structure of a group of indoor unit units, the indoor unit units are multiple, and the first indoor heat exchanger of each indoor unit unit is connected between the first four-way valve and the liquid storage device, and the second indoor heat exchanger of each indoor unit unit is connected between the second four-way valve and the liquid storage device.

[0034] The air conditioner and hot water integrated machine with temperature control and dehumidification functions has the following beneficial effects:

[0035] The air conditioner and hot water integrated machine with temperature control and dehumidification functions has the following beneficial effects: The water tank is integrated into a conventional air conditioning system, the heat pump water heater and the air conditioning system are organically combined, and multiple operation modes such as cooling supply, heating supply, dehumidification, hot water supply, simultaneous hot water supply and cooling supply, simultaneous hot water supply and heating supply, dehumidification and hot water production, heat storage defrosting and conventional defrosting can be realized, that is, the modes of refrigeration and hot water production, heating and hot water production and dehumidification and hot water production can be realized at the same time. The liquid storage device is arranged, and the other end of the outdoor heat exchanger, the other end of the first and second indoor heat exchangers and the other end of the water tank are all communicated to the inside of the liquid storage device, so that the refrigerant circulation amount circulating in the system can be adaptively adjusted. Since the refrigerant circulation amounts are different in multiple operation modes, the refrigerant circulation amounts in different modes can be adaptively adjusted through the above communication mode of the liquid storage device, the problem of high power consumption caused by the small required refrigerant flow and the large actual circulation flow is solved, the problem of the comfort requirement not being met caused by the large required refrigerant flow and the small actual circulation flow is solved, and efficient operation of the system is realized. The same set of heat exchangers and pipeline systems are shared or partially shared in multiple operation modes. Compared with simultaneously installing an air conditioner and a heat pump water heater, initial investment and use cost are saved, and system comprehensive use efficiency is improved. The air conditioning system can use the condensation heat generated by the refrigeration system to heat hot water (refrigeration and hot water production mode) when cooling and hot water supply are simultaneously operated, and can use indoor heat absorbed by dehumidification to produce hot water (dehumidification and hot water production mode), so that the system can reduce heat emission to the environment, reduce heat pollution and improve system energy efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 is the system diagram of the air conditioner hot water all-in-one machine with temperature control and dehumidification function in the refrigeration & conventional defrosting mode of the utility model;

[0037] Figure 2 is the system diagram of the air conditioner hot water all-in-one machine with temperature control and dehumidification function in the heating mode of the utility model;

[0038] Figure 3 is the system diagram of the air conditioner hot water all-in-one machine with temperature control and dehumidification function in the temperature control and dehumidification mode of the utility model;

[0039] Figure 4 is the system diagram of the air conditioner hot water all-in-one machine with temperature control and dehumidification function in the single hot water mode of the utility model;

[0040] Figure 5 is the system diagram of the air conditioner hot water all-in-one machine with temperature control and dehumidification function in the refrigeration + hot water mode of the utility model;

[0041] Figure 6 is the system diagram of the air conditioner hot water all-in-one machine with temperature control and dehumidification function in the heating + hot water mode of the utility model;

[0042] Figure 7 is the system diagram of the air conditioner hot water all-in-one machine with temperature control and dehumidification function in the heat storage defrosting mode of the utility model;

[0043] Figure 8 is the system diagram of the air conditioner hot water all-in-one machine with temperature control and dehumidification function of the utility model of the alternative embodiment 1;

[0044] Figure 9 is the system diagram of the air conditioner hot water all-in-one machine with temperature control and dehumidification function of the utility model of the alternative embodiment 2.

[0045] The reference signs are shown as:

[0046] 10, compressor; 11, exhaust port; 12, first suction port; 13, second suction port; 14, third suction port; 20, outdoor heat exchanger; 31, first throttling device; 32, second throttling device; 33, third throttling device; 34, fourth throttling device; 41, first indoor heat exchanger; 42, second indoor heat exchanger; 51, first four-way valve; C, first C terminal; D, first D terminal; E, first E terminal; S, first S terminal; 52, second four-way valve; C', second C terminal; D', second D terminal; E', second E terminal; S', second S terminal; 61, outdoor fan; 62, indoor fan; 70, control valve; 80, liquid storage device; 90, water tank; 91, water tank water inlet; 92, water tank water outlet; 93, refrigerant inlet; 94, refrigerant outlet; 101, first pipeline; 102, second pipeline; 103, third pipeline; 104, fourth pipeline; 105, fifth pipeline; 106, sixth pipeline; 107, seventh pipeline; 108, eighth pipeline; 109, ninth pipeline; 110, tenth pipeline; 111, eleventh pipeline; 112, twelfth pipeline; 113, thirteenth pipeline; 114, fourteenth pipeline; 115, fifteenth pipeline. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not intended to limit the present application and its application or use in any way. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0048] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.

[0049] The foregoing description, for purposes of explanation, sets forth specific values and arrangements of components and steps that are subject to many options. The intent is to be accurate in describing the principles and novel features of the application. Thus, although the application has been described with reference to specific embodiments thereof, it will be apparent to those of ordinary skill in the art that a number of changes can be made to the embodiments described without departing from the spirit and scope of the application. For example, the various features of the application can be combined in any combination, where possible. Accordingly, the scope of the application is to be construed as encompassing modifications and variations of the specific examples described herein, subject only to the conditions of the prior art.

[0050] In the description of the present application, it needs to be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship is usually based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0051] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the example term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative description used herein is interpreted accordingly.

[0052] In addition, it needs to be explained that the use of "first", "second" and the like to limit parts only for the convenience of distinguishing the corresponding parts, and if there is no further declaration, the above words have no special meaning, therefore, it cannot be understood as a limitation on the scope of protection of the present application.

[0053] AsFigures 1-9 The utility model provides a kind of air conditioner water heater integrated machine with temperature control dehumidification function, it includes:

[0054] Compressor 10, outdoor heat exchanger 20, first indoor heat exchanger 41, second indoor heat exchanger 42, water tank 90 and liquid storage device 80 (liquid storage tank), the exhaust end of the compressor 10 can be communicated to one end of the outdoor heat exchanger 20, or communicated to one end of the first indoor heat exchanger 41, or communicated to one end of the water tank 90, the other end of the outdoor heat exchanger 20 is communicated to the inside of the liquid storage device 80, the other end of the first indoor heat exchanger 41 is communicated to the inside of the liquid storage device 80, one end of the second indoor heat exchanger 42 can be communicated to the exhaust end or suction end of the compressor 10, the other end of the second indoor heat exchanger 42 is communicated to the inside of the liquid storage device 80, the other end of the water tank 90 is communicated to the inside of the liquid storage device 80, the suction end of the compressor 10 can be communicated to the one end of the outdoor heat exchanger 20 or communicated to the one end of the first indoor heat exchanger 41, or communicated to the one end of the water tank 90.

[0055] The utility model discloses a specific connecting mode of compressor, outdoor heat exchanger, first and second indoor heat exchanger, water tank and liquid storage device, can fuse the water tank to the conventional air conditioning system, and the heat pump water heater and air conditioning system are organically combined, can realize the operation mode of cooling, heating, dehumidification, hot water supply, hot water supply while cooling, hot water supply while heating, dehumidification + hot water making, heat storage defrosting and conventional defrosting etc.

[0056] In order to solve the high energy consumption problem of conventional household variable frequency air conditioner in summer low load operation refrigeration and dehumidification and the low comfort problem of refrigeration and dehumidification in the humid weather of transition season, and recover the waste heat of outdoor discharge to meet the demand of domestic hot water when refrigeration is operated, the utility model provides a kind of air conditioner water heater system with temperature control dehumidification function, can simultaneously satisfy refrigeration, heating, temperature control dehumidification and hot water making and defrosting etc.

[0057] The utility model can solve the following technical problems:

[0058] 1. solve the problem of low comfort and high energy consumption of conventional variable frequency air conditioner in humid area in the humid weather of transition season dehumidification operation when the temperature of air outlet and evaporation is too low;

[0059] 2. Solve the problem of heat waste caused by discharging heat to the outdoor during the cooling and temperature control dehumidifying operation of the air conditioner; solve the problem of high energy consumption caused by too low evaporation temperature during the low load refrigeration and dehumidifying operation of the conventional variable frequency air conditioner;

[0060] 3. Solve the problem of slow defrosting speed in the conventional defrosting mode, reduce indoor temperature fluctuations, and improve the comfort of low-temperature heating operation users;

[0061] 4. Solve the problem of mismatching of system refrigerant filling amount during multi-mode operation;

[0062] 5. A set of air conditioning systems realizes conventional refrigeration and heating functions, and simultaneously realizes temperature control dehumidification and water heater functions, reduces equipment cost and reduces equipment idle rate.

[0063] The utility model provides a kind of air conditioning hot water combined system, condensation heat discharged to environment during air conditioning operation is collected, for heating hot water or other heating equipment, can realize multiple functions such as cooling, heating, hot water supply, saves equipment initial investment and use cost, improves system comprehensive use efficiency, while it can reduce the heat discharge to environment of system, reduces heat pollution.

[0064] In some embodiments,

[0065] Further comprising a first four-way valve 51 (four-way reversing valve), the first four-way valve 51 includes a first D end D, a first E end E, a first S end S and a first C end C, the first four-way valve 51 can be switched between the following two communication states: in the first state, the first D end D is in communication with the first C end C, while the first E end E is in communication with the first S end S; in the second state, the first D end D is in communication with the first E end E, while the first C end C is in communication with the first S end S,

[0066] The first D end D is connected to the exhaust end of the compressor 10 through a first pipeline 101, the first C end C is connected to one end of the outdoor heat exchanger 20 through a second pipeline 102, the first S end S is connected to the suction end of the compressor 10 through a third pipeline 103, and the first E end E is connected to one end of the first indoor heat exchanger 41 through a fourth pipeline 104.

[0067] This is the preferred structure form of the utility model, which can effectively switch modes through the setting of the first four-way valve, especially for switching the communication position between the first indoor heat exchanger and the outdoor heat exchanger, realizing the switching of refrigeration, heating and dehumidification, as well as the switching between refrigeration + hot water, heating + hot water and dehumidification + hot water, etc.

[0068] The air conditioner further has a main four-way valve (first four-way valve 51) for switching different operation modes. The D pipe (first D end) of the four-way valve is connected with the exhaust port of the compressor 10, the S pipe (first S end) is connected with the suction port of the compressor, the E pipe (first E end) is connected with the second indoor heat exchanger 42, and the C pipe (first C end) is connected with the outdoor heat exchanger 20.

[0069] In some embodiments,

[0070] The other end of the outdoor heat exchanger 20 is communicated to the inside of the liquid storage device 80 through a fifth pipeline 105, the other end of the first indoor heat exchanger 41 is communicated to the inside of the liquid storage device 80 through a sixth pipeline 106, the other end of the second indoor heat exchanger 42 is communicated to the inside of the liquid storage device 80 through a seventh pipeline 107, and the other end of the water tank 90 is communicated to the inside of the liquid storage device 80 through an eighth pipeline 108.

[0071] The utility model further preferably communicates the other end of the outdoor heat exchanger to the inside of the liquid storage device through a fifth pipeline, communicates the other end of the first indoor heat exchanger to the inside of the liquid storage device through a sixth pipeline, communicates the other end of the second indoor heat exchanger to the inside of the liquid storage device through a seventh pipeline, and communicates the other end of the water tank to the inside of the liquid storage device through an eighth pipeline, which can utilize the liquid storage device to deliver different amounts of refrigerant liquid inside the liquid storage device to the outdoor heat exchanger through the fifth pipeline, to the first indoor heat exchanger through the sixth pipeline, to the second indoor heat exchanger through the seventh pipeline, and to the water tank through the eighth pipeline in different operation modes, and can adapt to the refrigerant circulation amount in different modes by adjusting the liquid level of the liquid storage device, solve the problem of high power consumption caused by small required refrigerant flow and large actual circulation flow, and solve the problem of failing to meet the comfort requirement caused by large required refrigerant flow and small actual circulation flow, and realize efficient operation of the system.

[0072] When the system requires more refrigerant circulation, the liquid level of the liquid storage device is adjusted to make the liquid storage device release more refrigerant to participate in circulation, and the liquid level of the liquid storage device decreases; when the system requires less refrigerant circulation, the liquid level of the liquid storage device is adjusted to reduce the refrigerant released to participate in circulation, and the liquid level of the liquid storage device increases.

[0073] In some embodiments,

[0074] The fifth pipeline 105 is provided with a first throttling device 31, the sixth pipeline 106 and the seventh pipeline 107 are communicated to the liquid storage device 80 through a fifteenth pipeline 115, the fifteenth pipeline 115 is provided with a second throttling device 32, the seventh pipeline 107 is provided with a third throttling device 33, the eighth pipeline 108 is provided with a fourth throttling device 34, and the first indoor heat exchanger 41 and the second indoor heat exchanger 42 are arranged on the same airflow path in the room.

[0075] The first throttling device arranged on the fifth pipeline can adjust or close the refrigerant flow rate flowing through or flowing out of the outdoor heat exchanger, thereby effectively controlling the refrigerant flow rate flowing through the outdoor heat exchanger, the second throttling device arranged on the fifteenth pipeline after the sixth pipeline and the seventh pipeline are merged can adjust or close the refrigerant flow rate flowing through or flowing out of the indoor unit or entering the indoor unit, thereby effectively controlling the refrigerant flow rate flowing through the overall indoor unit, the third throttling device arranged on the seventh pipeline can adjust or close the refrigerant flow rate flowing through or flowing out of the second indoor heat exchanger, thereby effectively controlling the refrigerant flow rate flowing through the second indoor heat exchanger, and the fourth throttling device arranged on the eighth pipeline can adjust or close the refrigerant flow rate flowing through or flowing out of the water tank, thereby effectively controlling the refrigerant flow rate flowing through the water tank, so as to meet the required refrigerant flow rate of the indoor heat exchanger, the outdoor heat exchanger and the water tank under different operation modes; the fourth throttling device can be opened and adjusted to throttle the refrigerant when dehumidification is required, thereby meeting the functions and effects of dehumidification and dehumidification+heating water.

[0076] The fifteenth pipeline after the two indoor heat exchangers are connected to the pipeline is provided with a throttling device, and the pipeline connected to the second indoor heat exchanger is provided with a throttling device, so that the refrigerant flow rate of the overall indoor unit can be preferentially regulated and controlled, and the refrigerant flow rate of the second indoor heat exchanger can be accurately adjusted, thereby realizing accurate temperature control of the indoor environment of the second indoor heat exchanger, and the refrigerant flow rate of the indoor unit can be quickly adjusted to the required range through the main throttling device on the fifteenth pipeline, the regulation and control are more rapid, and the regulation and control speed and comfort of refrigeration / heating / dehumidification can be improved.

[0077] The water tank heat exchanger in the water tank 90 of the air conditioning system is connected to the outdoor heat exchanger 20, the first indoor heat exchanger 41 and the second indoor heat exchanger 42 through different combinations of the first four-way valve 51, the second four-way valve 52 and the first throttling device 31, the second throttling device 32, the third throttling device 33 and the fourth throttling device 34, different communication modes are formed, and various operation modes such as refrigeration, heating, dehumidification, hot water, refrigeration+hot water, heating+hot water, dehumidification+hot water, heat storage defrosting and conventional defrosting can be realized, so as to adapt to different user requirements.

[0078] The first throttling device 31 of the air conditioning system is preferably connected in series between the outdoor heat exchanger 20 and the liquid storage device 80, the second throttling device 32 is preferably arranged on the fifteenth pipeline 115 communicated with the liquid storage device 80, the third throttling device 33 is arranged on the seventh pipeline communicated with the second indoor heat exchanger 42, and the fourth throttling device 34 is connected in series between the liquid storage device 80 and the water tank 90. The first throttling device 31, the second throttling device 32, the third throttling device 33 and the fourth throttling device 34 are preferably all throttling devices with valve closed and no flow, and when the system needs to switch the operation mode, the throttling device is closed to cut off the refrigerant operation of the pipeline.

[0079] The air conditioning hot water system detects the opening of the system operation mode, controls the opening and closing of the first four-way valve, the second four-way valve, the first to fourth throttling devices and the control valve, and opens different operation modes. The water temperature in the water tank is detected and compared with the set temperature to open different defrosting operation modes (heat storage defrosting improves defrosting efficiency). The air conditioning hot water all-in-one machine with temperature control dehumidification function preferably selects R32, R290 and other environmentally friendly and efficient refrigerants.

[0080] In some embodiments,

[0081] One end of the fifth pipeline 105 communicated to the inside of the liquid storage device 80 is a first end, the first end is higher than the first height of the inner bottom surface of the liquid storage device 80, one end of the fifteenth pipeline 115 communicated to the inside of the liquid storage device 80 is a second end, the second end is higher than the second height of the inner bottom surface of the liquid storage device 80, one end of the eighth pipeline 108 communicated to the inside of the liquid storage device 80 is a third end, the third end is higher than the third height of the inner bottom surface of the liquid storage device 80, the distance between the first end and the top of the liquid storage device 80 is a fourth height, and the fourth height is greater than the first height, the distance between the second end and the top of the liquid storage device 80 is a fifth height, and the fifth height is greater than the second height, the distance between the third end and the top of the liquid storage device 80 is a sixth height, and the sixth height is greater than the third height.

[0082] This is further preferred structure form of the air conditioner hot water integrated machine with temperature control dehumidification function of the utility model, namely the height of the fifth pipeline, the fifteenth pipeline and the eighth pipeline inserted in the liquid storage device is all located at the lower end, can effectively suck refrigerant from the refrigerant liquid at the bottom of the liquid storage device and enter the corresponding heat exchanger for heat exchange, can adaptively adjust the refrigerant flow circulating in the system under different operation modes, solves the problem of high power consumption caused by small required refrigerant flow and large actual circulating flow, and solves the problem of failing to meet the comfort requirement caused by large required refrigerant flow and small actual circulating flow, realizes efficient operation of the system.

[0083] In some embodiments,

[0084] The liquid storage device 80 has a middle height separation line with a height of half, the distance between the first end and the middle height separation line is a seventh height, and the seventh height is greater than the first height, the distance between the second end and the middle height separation line is an eighth height, and the eighth height is greater than the second height, and the distance between the third end and the middle height separation line is a ninth height, and the ninth height is greater than the third height.

[0085] This is further preferred structure form of the air conditioner hot water integrated machine with temperature control dehumidification function of the utility model, namely the height of the fifth pipeline, the fifteenth pipeline and the eighth pipeline inserted in the liquid storage device is all located at the lower end, can effectively suck refrigerant from the refrigerant liquid at the bottom of the liquid storage device and enter the corresponding heat exchanger for heat exchange, can adaptively adjust the refrigerant flow circulating in the system under different operation modes, solves the problem of high power consumption caused by small required refrigerant flow and large actual circulating flow, and solves the problem of failing to meet the comfort requirement caused by large required refrigerant flow and small actual circulating flow, realizes efficient operation of the system.

[0086] The air conditioner of the utility model further has a refrigerant filling amount adjusting device (namely a liquid storage device), which is connected with the first throttling device 31, the second throttling device 32, the third throttling device 33 and the fourth throttling device 34 respectively, and the pipelines connected with the filling amount adjusting device are all inserted into positions close to the bottom.

[0087] In some embodiments,

[0088] Further comprising an indoor fan 62 and an outdoor fan 61, the outdoor fan 61 is opposite to the outdoor heat exchanger 20 to drive air flow to exchange heat with refrigerant in the outdoor heat exchanger 20, the indoor fan 62, the first indoor heat exchanger 41 and the second indoor heat exchanger 42 are located on the same air flow path, along the flow direction of the air flow, the second indoor heat exchanger 42 is located downstream of the first indoor heat exchanger 41, and the indoor fan 62 is located upstream of the first indoor heat exchanger 41 or downstream of the second indoor heat exchanger 42.

[0089] In some embodiments,

[0090] Further comprising a second four-way valve 52, the second four-way valve 52 comprises a second D end D', a second C end C', a second S end S' and a second E end E', the second four-way valve 52 can be switched between the following two communication states: in the first state, the second D end D' communicates with the second C end C', and the second S end S' communicates with the second E end E' at the same time; in the second state, the second D end D' communicates with the second E end E', and the second C end C' communicates with the second S end S' at the same time,

[0091] The second D end D' is communicated to the exhaust end of the compressor 10 through the ninth pipeline 109, the second S end S' can be communicated to the suction end of the compressor 10 through the tenth pipeline 110, the second C end C' can be communicated to one end of the water tank 90 through the eleventh pipeline 111, and the second E end E' can be communicated to one end of the second indoor heat exchanger 42 through the twelfth pipeline 112;

[0092] The eleventh pipeline 111 is in contact with the water tank 90 through a refrigerant pipeline and exchanges heat with water in the water tank 90, one end of the water tank 90 is one end of the refrigerant pipeline, the other end of the water tank 90 is the other end of the refrigerant pipeline, the other end of the refrigerant pipeline is communicated to the eighth pipeline 108, and the refrigerant pipeline forms at least part of the structure of the water tank heat exchanger.

[0093] The utility model discloses a second four -way valve can be connected to air conditioning refrigerating system with water tank and second indoor heat exchanger, can realize the effect of hot water, still can through second indoor heat exchanger to indoor heating, and when second indoor heat exchanger indoor heating, first indoor heat exchanger still can indoor refrigeration, to realize hot water + refrigeration, hot water + heating and hot water + dehumidification multiple function, ninth pipe road can be communicated to the exhaust end of compressor with one end of water tank, to make second C end and second D end intercommunication through the adjustment second four -way valve when needing to prepare hot water, opens fourth throttage and can utilize high temperature and high pressure refrigerant to enter water tank to heat water to prepare the hot water of required temperature, when needing to carry out heat storage defrosting, makes second C end and second S end intercommunication through the adjustment second four -way valve, opens fourth throttage and can utilize high temperature and high pressure refrigerant to enter outdoor heat exchanger to defrost, and low temperature refrigerant after heat exchange enters water tank to absorb the heat storage of water tank, does not make indoor temperature reduce, improves the comfort degree, can open fourth throttage and carry out throttling regulation through fourth throttage, can realize indoor dehumidification and dehumidification + hot water and the function and effect of defrosting using the heat storage energy of water tank.

[0094] The air conditioner further comprises a main four-way reversing valve (first four-way valve 51) and an auxiliary four-way valve (second four-way valve 52) for switching different operation modes.

[0095] In some embodiments,

[0096] The compressor comprises a first cylinder and a second cylinder, the first cylinder has a first suction port 12, the second cylinder has a second suction port 13, the first S end S of the first four-way valve 51 is communicated to the first suction port 12 of the first cylinder through the third pipeline 103, and the second S end S' of the second four-way valve 52 is communicated to the second suction port 13 of the second cylinder through the tenth pipeline 110.

[0097] The thirteenth pipeline 113 is further provided with a control valve 70.

[0098] The utility model discloses a first and second cylinder and first and second air suction port can be connected to first and second indoor heat exchanger through first and second four -way valve respectively, can realize the effect of double -temperature refrigeration and double -temperature heating to the indoor multiple environment, and can realize heating water + dehumidification, separate dehumidification effect, can realize the two pipelines connected to the two cylinder air suction port through control valve and thirteenth pipeline and be integrated, that is, can be guided back to the pipeline of compressor when only outdoor heat exchanger evaporates or only water tank as evaporator can be guided back to two cylinders respectively, guarantee that two cylinders all have air intake, and all can carry out normal compression.

[0099] 1. The air conditioner water heater of the utility model is composed of compressor 10, outdoor heat exchanger 20, first indoor heat exchanger 41, second indoor heat exchanger 42, outdoor fan 61 and indoor fan 62. The first indoor heat exchanger and the second indoor heat exchanger are arranged along the air flow direction along the upstream and downstream. In the refrigeration mode, the two indoor heat exchangers simultaneously act as evaporators, in the heating mode, the two indoor heat exchangers simultaneously act as condensers, and in the temperature control and dehumidification mode, the second indoor heat exchanger and the first indoor heat exchanger respectively act as a reheating condenser and a dehumidification evaporator.

[0100] The compressor has a first compression part, a second compression part, a first air suction port 12, a second air suction port 13 and an exhaust port 11, and the first and second compression parts are connected with the first and second air suction ports respectively and connected with the exhaust port. The water tank has a refrigerant inlet 93 and a refrigerant outlet 94, the refrigerant inlet 93 is connected with the exhaust port 11 of the compressor, and the refrigerant outlet 94 is connected with the liquid storage device 80. The liquid storage device 80 is connected in series between the outdoor heat exchanger 20 and the first and second heat exchangers. When heating water, the water tank 90 is connected in parallel with the outdoor heat exchanger 20. The first and second heat exchangers are arranged in sequence along the air flow direction. In the refrigeration mode, the first and second heat exchangers are connected in parallel, the outlets are connected with the first and second air suction ports respectively, and the inlets are connected with the liquid storage device 80, the outdoor heat exchanger 20 and the exhaust port 11 of the compressor in sequence. In the temperature control and dehumidification mode, the second indoor heat exchanger 42 is connected in parallel with the outdoor heat exchanger 20, the inlets are connected with the exhaust port 11 of the compressor respectively, and the outlets are connected with the first indoor heat exchanger 41 and the first and second air suction ports in sequence.

[0101] 2. The air conditioner further has a main four-way reversing valve (first four-way valve 51) and a dehumidification four-way valve (second four-way valve 52), the D port of the first four-way valve is connected with the exhaust port 11 of the compressor 10, the S port is connected with the first air suction port 12 of the compressor, the C port is connected with the outdoor heat exchanger 20, and the E port is connected with the first indoor heat exchanger 41 for realizing the switching of different operation modes. The D pipe of the second four-way reversing valve is connected with the exhaust port of the compressor 10, the S pipe is connected with the second air suction port 13 of the compressor, the E pipe is connected with the second indoor heat exchanger 42, and the C pipe is connected with the refrigerant inlet 93 of the water tank 90.

[0102] 3. The air conditioner further comprises an electromagnetic valve (control valve 70). The electromagnetic valve is connected in series between the S port of the second four-way valve 52 and the first suction port 12 of the compressor 10.

[0103] 4. The air conditioner further comprises a first throttling device 31, a second throttling device 32, a third throttling device 33 and a fourth throttling device 34. The first throttling device 31 is connected in series between the outdoor heat exchanger 20 and the liquid storage device 80, the second throttling device 32 is connected in series between the liquid storage device 80 and the first and second indoor heat exchangers, the third throttling device 33 is connected in series between the second throttling device 32 and the second indoor heat exchanger 42, and the fourth throttling device 34 is connected in series between the liquid storage device 80 and the water tank 90. The plurality of throttling devices can be electronic expansion valves, thermal expansion valves, throttling short pipes or capillary tubes.

[0104] 5. The air conditioner of the utility model further comprises a refrigerant filling amount adjusting device (liquid storage device 80) connected with the first throttling device 31, the second throttling device 32, the third throttling device 33 and the fourth throttling device 34 respectively, and the pipelines connected with the filling amount adjusting device are inserted into positions close to the bottom (to ensure that liquid refrigerant enters the connecting pipelines).

[0105] 6. The air conditioner of the utility model has multiple operation modes (at least 5 functions and 7 modes) such as refrigeration, heating, temperature control dehumidification, hot water production, simultaneous refrigeration and hot water production, simultaneous temperature control dehumidification and hot water production, simultaneous heating and hot water production and heat storage defrosting.

[0106] 7. The air conditioner water heater system of the utility model adopts environmentally friendly and efficient refrigerants such as R32 and R290.

[0107] The utility model has the following beneficial effects:

[0108] 1. When dehumidification is needed in the transition season, the utility model switches the function valve to make the indoor windward side evaporator realize dehumidification and cooling of return air, the indoor leeward side heat exchanger becomes a condenser and is connected in parallel with the outdoor condenser, and the refrigerant flow distribution is adjusted through the electronic expansion valves connected in series on the outlet pipelines of the heat exchangers, so that the condensing load is distributed and the indoor outlet air temperature is adjusted, the comfort is significantly improved, and the energy consumption is reduced.

[0109] 2. The utility model connects two heat exchangers in parallel on the indoor side and connects them with two suction ports of the compressor, so that two different evaporation temperatures are obtained during refrigeration operation, the indoor return air flows through the two heat exchangers with high and low evaporation temperatures in sequence, thereby realizing stepwise cooling and dehumidification of the return air, reducing the irreversible loss in the heat exchange process, and improving the refrigeration energy efficiency ratio and the dehumidification amount per unit energy consumption.

[0110] 3. The utility model discloses a static water tank and corresponding switch valve are equipped, make system can effectively make hot water and satisfy the life hot water demand when any mode operation, fully recover the condensing heat of air conditioner, improve the energy utilization rate, reduce the expense of extra making life hot water at the same time, economic and environmental protection;

[0111] 4. The utility model discloses a air conditioner water heater integration system opens heat storage defrosting mode when defrosting in winter, and heat defrosting can shorten defrosting time of low temperature heating mode, reduces indoor temperature fluctuation, promotes the comfort of low temperature heating operation user;

[0112] 5. Through setting up refrigerant storage device, different mode high -efficient operation can be realized;

[0113] 6. The utility model discloses a multifunctional air conditioning system is relatively simple, reliable, low in cost.

[0114] As Figures 1-9 The utility model discloses a air conditioner water heater all -in -one with temperature control dehumidification function contains compressor 10, outdoor heat exchanger 20, first throttling device 31, second throttling device 32, third throttling device 33 and fourth throttling device 34, first indoor heat exchanger 41, second indoor heat exchanger 42, first four -way valve 51, second four -way valve 52, control valve 70 (preferably solenoid valve), outdoor fan 61, indoor fan 62, water tank 90 and be used for adjusting the refrigerant charge storage device 80 etc.

[0115] The utility model discloses a compressor 10 has two compression cylinders, two suction ports: first suction port 12, second suction port 13, two compression cylinders share an exhaust port 11, and exhaust mixes and discharges;The D pipe of first four -way valve 51 is connected with the exhaust port 11 of compressor, and the C pipe is communicated with one end of outdoor heat exchanger 20, and the S pipe is communicated with the first suction port 12 of compressor, and the E pipe is communicated with one end of first indoor heat exchanger 41;The D pipe of second four -way valve 52 is communicated with the exhaust port 11 of compressor, and the E pipe is communicated with one end of second indoor heat exchanger 42, and the S pipe is communicated with the second suction port 13 of compressor, and the C pipe is communicated with the refrigerant inlet 93 of water tank 90, and control valve 70 is communicated compressor first suction pipe line (third pipe line 103) and second suction pipe line (tenth pipe line 110).

[0116] The exhaust port of the compressor 10 is connected with the D pipe of the first four-way valve 51 and the D pipe of the second four-way valve 52 respectively, and the suction port is connected with the S pipe of the first four-way valve 51 and the second four-way valve 52 respectively. The C pipe of the first four-way valve 51 is connected with one end of the outdoor heat exchanger, and the other end of the outdoor heat exchanger is connected with the first throttling device 31. The liquid storage device 80 for adjusting the refrigerant charging amount has three connecting pipe interfaces connected with four throttling devices respectively, wherein the three connecting pipes of the liquid storage tank are inserted into the bottom of the liquid storage tank. The first indoor heat exchanger 41 is connected with the second throttling device 32 and the first four-way valve 51, and the second indoor heat exchanger is connected with the third throttling device 33 and the E pipe of the second four-way valve respectively. The refrigerant circulation pipeline of the water tank is connected with the C pipe of the second four-way valve 52 and the fourth throttling device 34 respectively. The utility model can realize single refrigeration, heating, dehumidification, hot water production, refrigeration+hot water production, heating+hot water production, dehumidification+hot water production, heat storage defrosting and conventional defrosting and other operation modes through the control of the throttling device and the first and second four-way valves and the control valve.

[0117] In some embodiments,

[0118] Further comprising an auxiliary compression cylinder and a fourteenth pipeline 114, the auxiliary compression cylinder has a third suction port 14, the third suction port 14 is connected to the upper end of the inside of the liquid storage device 80 through the fourteenth pipeline 114, the gas discharged by the auxiliary compression cylinder is mixed with the gas discharged by the first cylinder and the gas discharged by the second cylinder in the shell of the compressor, and is discharged through the first pipeline 101 and / or the ninth pipeline 109.

[0119] Figure 8 As a first alternative embodiment of the utility model, the compressor in the main embodiment is changed into a parallel compressor, the compressor has two compression cylinders, two suction ports, and one exhaust port. The original liquid storage device 80 in the system of the main embodiment simultaneously serves as a flasher of the present embodiment, the suction port of the auxiliary compression cylinder is connected with the liquid storage device 80, and absorbs the flash-out refrigerant gas from the liquid storage device 80. Thus, a parallel compression cycle is formed, the evaporator inlet specific enthalpy is reduced, the system refrigeration EER and heating COP are improved, and the system heating capacity is significantly improved. The alternative embodiment can realize the same functional mode as the main embodiment, and the valve switching and operation mode under different operation modes are similar to the main embodiment.

[0120] In some embodiments,

[0121] The first indoor heat exchanger 41, the second indoor heat exchanger 42 and the third throttling device 33 and the indoor fan 62 constitute at least part of the structure of a group of indoor unit, the indoor unit is multiple, and the first indoor heat exchanger 41 of each indoor unit is connected between the first four-way valve 51 and the liquid storage device 80, and the second indoor heat exchanger 42 of each indoor unit is connected between the second four-way valve 52 and the liquid storage device 80.

[0122] Figure 9 For the second alternative embodiment of the utility model, increase one indoor unit (namely can be parallelly connected at least one indoor unit unit, each indoor unit includes first indoor heat exchanger 41, second indoor heat exchanger 42 and corresponding throttling device: third throttling device 33), constitute the multi-connected mode of this air conditioning system, and indoor unit can be independently opened or closed (in principle, multiple indoor units can be connected in parallel on the system to form a multi-connected mode, and this embodiment is only explained by connecting one multi-connected machine in parallel). The alternative embodiment can realize the same function mode as the main embodiment, and the switching and operation mode of the different operation mode valve are similar to the main embodiment.

[0123] The utility model also provides a kind of control method of air conditioner water heater integrated machine with temperature control dehumidification function as described above, wherein:

[0124] When the air conditioner water heater integrated machine with temperature control dehumidification function simultaneously includes first four-way valve 51, second four-way valve 52 and first throttling device 31, second throttling device 32, third throttling device 33, fourth throttling device 34 and control valve 70, the control method comprises:

[0125] Detection step, detects the required operation mode of system;

[0126] Judgment step, determine which one of the required operation mode is refrigeration mode, heating mode, dehumidification mode, refrigeration+hot water mode, heating+hot water mode, dehumidification+hot water mode and defrosting mode;

[0127] Control step, according to the requirement of different operation mode, control the switching of first four-way valve 51 and second four-way valve 52, and control the on-off of first throttling device 31, second throttling device 32, third throttling device 33 and fourth throttling device 34 and the size of adjusting opening degree, and control the opening and closing of control valve 70.

[0128] The utility model discloses a water tank is fused to the conventional air conditioning system, and the heat pump water heater and air conditioning system are organically combined, and according to the demand control of different operation mode 2 four -way valve switching and control four throttles opening and closing and opening degree, can realize the supply cold, heating, dehumidification, hot water supply, cold water supply, hot water supply, dehumidification + hot water mode, heat storage defrost and conventional defrosting and a variety of operation modes, can realize refrigeration + hot water, heating + hot water and dehumidification + hot water mode mode, the utility model discloses through setting up liquid storage device, and the other end of outdoor heat exchanger, the other end of first and second indoor heat exchanger, the other end of water tank are all communicated to the inside of liquid storage device, can self -adaptation adjustment refrigerant circulation amount circulating in the system, because the refrigerant circulation amount is different under a variety of operation modes, and the above-mentioned communication mode of liquid storage device can self -adaptation refrigerant circulation amount under different modes, solve the problem of high power consumption caused by the required refrigerant flow small and actual circulation flow large, and solve the problem of not meeting the comfort requirement caused by the required refrigerant flow large and actual circulation flow small, realize the efficient operation of system, the utility model discloses a variety of operation modes share or partially share the same set of heat exchanger and pipeline system, compared with installing air conditioning and heat pump water heater simultaneously, saves the initial investment and use cost, improves system comprehensive utilization efficiency, the air conditioning system of the utility model can also be used when supplying cold and hot water simultaneously, and the condensing heat generated by refrigeration system is used for heating hot water refrigeration + hot water mode, and the indoor heat absorbed by dehumidification can be used for making hot water dehumidification + hot water mode, can reduce the heat emission of system to environment, reduce heat pollution and also can improve system energy efficiency.

[0129] In some embodiments,

[0130] The control step, when the required operation mode of system is refrigeration mode, controls the first four -way valve 51 so that the first D end D communicates with the first C end C, and the first E end E communicates with the first S end first S simultaneously, controls the second four -way valve 52 so that the second D end D' communicates with the second C end C' simultaneously, and the second E end E' communicates with the second S end S', controls the fourth throttling device 34 to close, controls the first throttling device 31, the second throttling device 32 and the third throttling device 33 to open simultaneously and controls the opening degree of three to change, and controls the control valve 70 to close;

[0131] When the system required operation mode is heating mode, the first four-way valve 51 is controlled to make the first D end D communicate with the first E end E, and the first C end C communicates with the first S end S, the second four-way valve 52 is controlled to make the second D end D' communicate with the second E end E', and the second C end C' communicates with the second S end S', the fourth throttling device 34 is controlled to be closed, the first throttling device 31, the second throttling device 32 and the third throttling device 33 are all controlled to be opened and the opening degree of the three is changed, and the control valve 70 is controlled to be closed.

[0132] When the system required operation mode is temperature control dehumidification, the first four-way valve 51 is controlled to make the first D end D communicate with the first C end C, and the first E end E communicates with the first S end S, the second four-way valve 52 is controlled to make the second D end D' communicate with the second E end E', and the second C end C' communicates with the second S end S', the fourth throttling device 34 is controlled to be closed, the first throttling device 31, the second throttling device 32 and the third throttling device 33 are all controlled to be opened and the opening degree of the three is changed, and the control valve 70 is controlled to be opened.

[0133] When the system required operation mode is refrigeration + heating water mode, the first four-way valve 51 is controlled to make the first D end D communicate with the first C end C, and the first E end E communicates with the first S end S, the second four-way valve 52 is controlled to make the second D end D' communicate with the second C end C', and the second E end E' communicates with the second S end S', the first throttling device 31 is closed, and the second throttling device 32, the third throttling device 33 and the fourth throttling device 34 are all controlled to be opened and the opening degree of the three is changed, the liquid level in the liquid storage device 80 can be adjusted, and the control valve 70 is controlled to be closed.

[0134] When the system required operation mode is heating + heating water mode, the first four-way valve 51 is controlled to make the first D end D communicate with the first E end E, and the first C end C communicates with the first S end S, the second four-way valve 52 is controlled to make the second D end D' communicate with the second C end C', and the second E end E' communicates with the second S end S', the third throttling device 33 is closed, the first throttling device 31, the second throttling device 32 and the fourth throttling device 34 are all controlled to be opened and the opening degree of the three is changed, the liquid level in the liquid storage device 80 can be adjusted, and the control valve 70 is controlled to be opened.

[0135] As shown in FIG. 1, when only the refrigeration mode is operated, the first four-way valve 51 and the second four-way valve 52 are both powered off, the electromagnetic valve (control valve 70) is closed, and the fourth throttling device 34 (preferably an electronic expansion valve) is closed, at this time the heat storage water tank does not work, as shown in FIG. 2. Figure 1 Figure 1 ​The first four-way valve 51 and the second four-way valve 52 are both D-pipe and C-pipe conduction, S-pipe and E-pipe conduction. The high-temperature and high-pressure refrigerant gas discharged by the compressor enters the outdoor heat exchanger 20 through the D-pipe and the C-pipe of the first four-way valve 51, is condensed into high-pressure liquid refrigerant in the outdoor heat exchanger 20, and then enters the liquid storage device 80 (a liquid storage tank) after being throttled and decompressed by the first throttling device 31. The liquid-phase saturated refrigerant separated from the liquid storage tank is throttled and decompressed by the second throttling device 32 and is divided into two paths: one path evaporates and absorbs heat through the first indoor heat exchanger 41 and then enters the first suction port 12 of the compressor through the E-end and the S-end of the first four-way valve 51; the other path of the refrigerant further throttles and decompresses by the third throttling device 33 and then enters the second indoor heat exchanger 42, and after the heat exchange is completed, enters the second suction port 13 of the compressor through the E-pipe and the S-pipe of the second four-way valve 52. The refrigerant entering the first and second suction ports of the compressor is mixed and discharged after being compressed in the respective compression cylinders, so as to complete the entire refrigeration cycle.

[0136] In this mode, the first indoor heat exchanger 41 and the second indoor heat exchanger 42 are used as high-temperature evaporators and low-temperature evaporators, respectively. The high-temperature evaporator is mainly responsible for sensible heat load, and the low-temperature evaporator is mainly responsible for latent heat load. The evaporation process realizes gradient heat exchange, reduces the heat exchange temperature difference, reduces the irreversible loss in the heat exchange process, and improves the system energy efficiency.

[0137] When the four throttling devices are electronic expansion valves during the operation of the air conditioning refrigeration mode, the opening degree of the electronic expansion valve, the frequency of the compressor and the rotating speed of the first and second fans can be adjusted to realize the adjustment of the refrigerating capacity and the dehumidifying capacity, the operation energy-saving optimization, and the control of the return air temperature and humidity.

[0138] As Figure 2As shown, when operating only in heating mode, both the first four-way valve 51 and the second four-way valve 52 are energized, the fourth throttling device 34 is closed, the water tank is not working, and the solenoid valve (control valve 70) is open. Both the first four-way valve 51 and the second four-way valve 52 have their D and E pipes open, and their C and S pipes open. The high-temperature, high-pressure gaseous refrigerant discharged from the compressor 10 is divided into two paths: one path enters the first indoor heat exchanger 41 through the D and E pipes of the first four-way valve 51, condensing and releasing heat to become liquid; the other path enters the second indoor heat exchanger 42 through the D and E pipes of the second four-way valve 52, condensing and releasing heat to become liquid. Then, it is throttled and depressurized by the third throttling device 33 (at this time, the third throttling device 33 mainly serves to distribute the flow), mixing with the refrigerant from the first indoor heat exchanger 41. The mixed refrigerant, after being throttled and depressurized by the second throttling device 32, enters the liquid storage device 80. The liquid-phase saturated refrigerant from the liquid storage device 80 is further throttled and depressurized by the first throttling device 31 before entering the outdoor heat exchanger 20 to evaporate and absorb heat into a gaseous state. The gaseous refrigerant then passes through the C and S tubes of the first four-way valve 51 and is subsequently divided into two paths: one path directly enters the first suction port 12 of the compressor 10, and the other path passes through the control valve 70 to enter the second suction port 13 of the compressor. After the refrigerant entering the first and second suction ports of the compressor is compressed in its respective compression cylinder, the exhaust gases are mixed and discharged, thus completing the entire heating cycle.

[0139] like Figure 3 As shown, when only the temperature and humidity control mode is running, the first four-way valve 51 is de-energized, the second four-way valve 52 is energized, the fourth throttling device 34 is closed, the water tank does not work, and the control valve 70 is open. The D and C pipes of the first four-way valve 51 are connected, and the E and S pipes are connected. The D and E pipes of the second four-way valve 52 are connected, and the S and C pipes are connected. The high-temperature, high-pressure gaseous refrigerant discharged from the compressor is divided into two paths. One path enters the outdoor heat exchanger 20 through the D and C pipes of the first four-way valve 51 for heat exchange, condenses and releases heat to become liquid refrigerant, and then enters the liquid receiver 80 after being throttled and depressurized by the first throttling device 31. The liquid-phase saturated refrigerant from the liquid receiver 80 is further throttled and depressurized by the second throttling device 32. The other path of refrigerant discharged from the compressor enters the second indoor heat exchanger 42 through the D and E pipes of the second four-way valve 52 for heat exchange, condenses and releases heat to become liquid refrigerant, and then is throttled and depressurized by the third throttling device 33. Finally, it mixes with the refrigerant from the second throttling device 32, and the mixed refrigerant enters the first indoor heat exchanger 41, evaporates and absorbs heat to become gaseous. This gaseous refrigerant then enters the first indoor heat exchanger 41 through the E and S pipes of the first four-way valve 51, and is then divided into two paths. One path is directly drawn into the first suction port 12 of the compressor, and the other path passes through the control valve 70 to enter the second suction port 13 of the compressor. After the refrigerant entering the first and second suction ports of the compressor is compressed in its respective compression cylinder, the exhaust mixture is discharged, thus completing the entire temperature regulation and dehumidification cycle.

[0140] The air conditioner temperature adjusting and dehumidifying mode operation, four throttings are all electronic expansion valves, adjusting the opening of the electronic expansion valve to realize the distribution of refrigerant flow between the outdoor heat exchanger 20 and the second indoor heat exchanger 42, in combination with the frequency of the compressor and the adjustment of the rotating speed of the first and second fans, the indoor dehumidification amount and the outlet air temperature can be adjusted and the operation energy saving optimization can be realized, and the return air temperature and humidity control can be realized.

[0141] In this mode, by switching the valve, the air dehumidification without temperature reduction treatment is realized. The first indoor heat exchanger 41 is used as a separate evaporator to dehumidify and cool the indoor air, and the second indoor heat exchanger 42 is used as a low-temperature condenser to reheat the air dehumidified and cooled to improve the supply air temperature and improve the comfort of the indoor environment.

[0142] As shown in Figure 4 As shown in

[0143] As shown in Figure 5As shown, in the cooling + heating water mode, the first four-way valve 51 and the second four-way valve 52 are both powered off, and the first throttling device 31 is closed, at which time the heat storage water tank works, and the control valve 70 is closed. The D pipe and the C pipe of the first four-way valve 51 and the second four-way valve 52 are connected, and the S pipe and the E pipe are connected. The high-temperature and high-pressure refrigerant gas discharged by the compressor 10 enters the water tank 90 through the D pipe and the E pipe of the second four-way valve 52, exchanges heat with water in the water tank 90, and is condensed into high-pressure subcooled liquid-phase refrigerant in the water tank 90, and then enters the liquid storage device 80 after being throttled and reduced in pressure by the fourth throttling device 34. The liquid saturated refrigerant separated from the liquid storage device 80 is further throttled and reduced in pressure by the second throttling device 32, and is divided into two paths: one path enters the first indoor heat exchanger 41, evaporates and absorbs heat, and then enters the first suction port 12 of the compressor through the E end and the S end of the first four-way valve 51; the other path enters the second indoor heat exchanger 42 after being further throttled and reduced in pressure by the third throttling device 33, and then enters the second suction port 13 of the compressor through the E pipe and the S pipe of the second four-way valve 52. The refrigerant entering the first and second suction ports of the compressor is mixed and discharged after being compressed in the respective cylinders, thereby completing the entire refrigerant circulation. As for the water circulation side, the water in the water tank exchanges heat with the high-temperature and high-pressure refrigerant discharged by the compressor, and the water is heated to the target temperature, and then is sent to the user end from the water outlet 92 of the water tank for use, and the water inlet 91 of the water tank is connected with the water pipeline network, so that the water in the water tank is maintained at a certain water level.

[0144] In this mode, the water tank 90 functions as a condenser, and since the first throttling device 31 is closed, the outdoor heat exchanger 20 does not work, and the hot water produced can meet the household water demand, saving energy and protecting the environment.

[0145] As Figure 6As shown, when the heating mode runs the heating water, at this time the first four-way valve 51 is powered on, the second four-way valve 52 is powered off, the third throttling device 33 is closed, and the control valve 70 is turned on. The first four-way valve 51 is D pipe and E pipe, C pipe and S pipe, and the second four-way valve 52 is D pipe and C pipe, S pipe and E pipe. The high-temperature and high-pressure gaseous refrigerant discharged by the compressor 10 is divided into two paths, one path enters the first indoor heat exchanger 41 through the D and E pipes of the first four-way valve 51 to condense and release heat to become liquid, and then enters the liquid storage device 80 after being throttled by the second throttling device 32; the other path enters the water tank 90 through the D and C pipes of the second four-way valve 52, exchanges heat with the water in the water tank, heats the water in the water tank, and then enters the liquid storage device 80 after being throttled by the fourth throttling device 34. The liquid-phase saturated refrigerant from the liquid storage device 80 enters the outdoor heat exchanger 20 after being further throttled by the first throttling device 31 to evaporate and absorb heat to become gaseous. The gaseous refrigerant enters the first suction port 12 of the compressor 10 through the C and S pipes of the first four-way valve 51, and then enters the second suction port 13 of the compressor through the control valve 70. The refrigerant entering the first and second suction ports of the compressor is compressed in the respective compression cylinders, and then mixed and discharged, thereby completing the entire heating + heating water circulation.

[0146] The conventional defrosting operation mode and the refrigeration operation mode are the same as shown in the schematic diagram. Figure 1

[0147] The utility model discloses through the opening condition of detection system operation mode, control four -way valve, three -way valve, throttling device's switch, open different operation mode. The air conditioner water heater all -in -one of the utility model discloses a temperature -controlled dehumidification function adopts the refrigerant selection R32, R290 etc. environmental protection high -efficient refrigerant.

[0148] In some embodiments,

[0149] The judgment step, if it is not a refrigeration mode and a heating mode, it is further judged whether it is a single heating water mode;

[0150] The control step, if it is a single heating water mode, the first four-way valve 51 is controlled to make the first D end D communicate with the first E end E, and the first C end C communicates with the first S end S, the second four-way valve 52 is controlled to make the second D end D' communicate with the second C end C', and the second E end E' communicates with the second S end S', the second throttling device 32 and the third throttling device 33 are closed, the first throttling device 31 and the fourth throttling device 34 are opened and the opening degree of the two is changed, and the control valve 70 is opened.

[0151] As shown in Figure 4 ​When the single hot water mode is operated, the first four-way valve 51 is powered on, the second four-way valve 52 is powered off, the second throttling device 32 and the third throttling device 33 are closed, and the control valve 70 is opened. The D pipe and the E pipe of the first four-way valve 51 are connected, the C pipe and the S pipe are connected, the D pipe and the C pipe of the second four-way valve 52 are connected, and the E pipe and the S pipe are connected. The high-temperature and high-pressure gaseous refrigerant discharged by the compressor 10 enters the water tank 90 through the D pipe and the E pipe of the second four-way valve 52, and the high-temperature and high-pressure refrigerant is cooled to become a high-pressure supercooled liquid in the water tank. Subsequently, the high-pressure supercooled liquid enters the liquid storage device 80 through the fourth throttling device 34, and the saturated liquid-phase refrigerant discharged from the liquid storage device 80 enters the outdoor heat exchanger 20 after being throttled by the first throttling device 31, and is evaporated to become a gas. The gaseous refrigerant enters the first suction port 12 of the compressor 10 through the C pipe and the S pipe of the first four-way valve 51, and then is divided into two paths, one of which directly enters the second suction port 13 of the compressor 10 through the control valve 70. The refrigerant entering the first and second suction ports of the compressor is compressed in the respective compression cylinders, and then is mixed and discharged, thereby completing the entire hot water heating cycle. As for the water circulation side, the water in the water tank exchanges heat with the high-temperature and high-pressure refrigerant discharged by the compressor, and is heated to the target temperature. Subsequently, the water is sent to the user end through the water outlet 92 of the water tank, and the water inlet 91 of the water tank is connected with the water pipeline network, so that the water in the water tank is maintained at a certain water level.

[0152] When the air conditioner heats water, the four throttling devices are all electronic expansion valves, the opening degrees of the first and fourth throttling devices are adjusted, the distribution of the refrigerant flow between the water tank 90 and the outdoor heat exchanger 20 is realized, and the adjustment of the water supply temperature is realized.

[0153] In some embodiments,

[0154] In the judgment step, it is judged whether it is the defrosting mode when it is judged that it is neither the refrigeration mode nor the heating mode, and neither the single hot water mode.

[0155] If it is the defrosting mode, the water temperature in the water tank is detected in the detection step.

[0156] When the water temperature is greater than or equal to the preset value, the heat storage defrosting operation mode is controlled to be executed, the first D end D is communicated with the first C end C, and the first E end E is communicated with the first S end S, the second D end D' is communicated with the second E end E', and the second C end C' is communicated with the second S end S' by controlling the first four-way valve 51, the second four-way valve 52 is controlled to be in a state that the second D end D' is communicated with the second E end E', and the second C end C' is communicated with the second S end S', the second throttling device 32 and the third throttling device 33 are closed, the opening degrees of the first throttling device 31 and the fourth throttling device 34 are controlled to be changed, and the control valve 70 is controlled to be opened.

[0157] When the water temperature is less than the second preset value, the system controls the execution of the normal defrosting mode. The first four-way valve 51 is controlled to connect the first D end D with the first C end C, and simultaneously connect the first E end E with the first S end S. The second four-way valve 52 is controlled to connect the second D end D' with the second C end C', and simultaneously connect the second E end E' with the second S end S'. The fourth throttling device 34 is closed. The first throttling device 31, the second throttling device 32, and the third throttling device 33 are all opened, and the opening degree of the three is controlled to change. The control valve 70 is closed.

[0158] In the judgment step, if it is determined that the mode is neither cooling mode, nor heating mode, nor hot water mode, nor defrosting mode, the control step controls the air conditioning and hot water unit with temperature control and dehumidification function to stop.

[0159] like Figure 7 As shown, during the operation of the heat storage defrost mode, the first four-way valve 51 is de-energized, the second four-way valve 52 is energized, the second throttling device 32 and the third throttling device 33 are both closed, and the control valve 70 is open. The D and C pipes of the first four-way valve 51 are connected, and the S and E pipes are connected. The D and E pipes of the second four-way valve 52 are connected, and the C and S ends are connected. The high-temperature, high-pressure gaseous refrigerant discharged from the compressor 10 enters the outdoor heat exchanger 20 through the D and C pipes of the first four-way valve 51 for heat exchange, condenses and releases heat to become liquid refrigerant, and then enters the liquid storage device 80 after being throttled and depressurized by the first throttling device 31. The liquid-saturated refrigerant in the liquid storage device 80 enters the hot water storage tank 90 after being throttled and depressurized by the fourth throttling device 34 to absorb heat. After heat exchange, it is then divided into two paths through the C and S pipes of the second four-way valve 52: one path directly enters the second suction port 13 of the compressor, and the other path enters the first suction port 12 of the compressor through the control valve 70. After the refrigerant entering the first and second suction ports of the compressor is compressed in its respective compression cylinder, it is discharged mixed with the exhaust gas, thus completing the entire heat storage defrosting mode cycle.

[0160] In this mode, the system mainly absorbs heat from the heat storage tank 90 to complete the heat storage defrosting process. Compared with the traditional defrosting process, the defrosting is faster and more stable due to the presence of the heat storage tank, shortening the defrosting cycle. By utilizing the heat stored in the tank, the system has high energy efficiency.

[0161] like Figure 1 As shown, during normal defrosting mode operation, both the first four-way valve 51 and the second four-way valve 52 are de-energized, the solenoid valve (control valve 70) is closed, and the fourth throttling device 34 (preferably an electronic expansion valve) is closed. At this time, the hot water storage tank does not operate. Figure 1The first four-way valve 51 and the second four-way valve 52 are both D pipe and C pipe conduction, S pipe and E pipe conduction. The high-temperature and high-pressure refrigerant gas discharged by the compressor enters the outdoor heat exchanger 20 through the D pipe and the C pipe of the first four-way valve 51, is condensed into high-pressure liquid refrigerant in the outdoor heat exchanger 20, and then enters the liquid storage device 80 (a liquid storage tank) after being throttled and decompressed by the first throttling device 31. The liquid-phase saturated refrigerant separated from the liquid storage tank is further throttled and decompressed by the second throttling device 32 and is divided into two paths: one path enters the first indoor heat exchanger 41 to evaporate and absorb heat and enters the first suction port 12 of the compressor through the E end and the S end of the first four-way valve 51; the other path of the refrigerant is further throttled and decompressed by the third throttling device 33 and then enters the second indoor heat exchanger 42. After the heat exchange is completed, the refrigerant enters the second suction port 13 of the compressor through the E pipe and the S pipe of the second four-way valve 52. The refrigerant entering the first and second suction ports of the compressor is mixed and discharged after being compressed in the respective compression cylinders, so as to complete the entire refrigeration cycle.

[0162] In this mode, the first indoor heat exchanger 41 and the second indoor heat exchanger 42 respectively serve as a high-temperature evaporator and a low-temperature evaporator. The high-temperature evaporator is mainly responsible for sensible heat load, and the low-temperature evaporator is mainly responsible for latent heat load. The evaporation process realizes gradient heat exchange, reduces the heat exchange temperature difference, reduces the irreversible loss in the heat exchange process, and improves the system energy efficiency.

[0163] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application. For ordinary skilled persons in the technical field, without departing from the technical principle of the present application, a number of improvements and modifications (any combination of embodiments) can be made, which shall be regarded as the protection scope of the present application.

Claims

1. An integrated air conditioning and hot water unit with temperature control and dehumidification functions, characterized in that: Comprise: A compressor (10), an outdoor heat exchanger (20), a first indoor heat exchanger (41), a second indoor heat exchanger (42), a water tank (90) and a liquid storage device (80), the exhaust end of the compressor (10) can be communicated to one end of the outdoor heat exchanger (20), or to one end of the first indoor heat exchanger (41), or to one end of the water tank (90), the other end of the outdoor heat exchanger (20) is communicated to the inside of the liquid storage device (80), the other end of the first indoor heat exchanger (41) is communicated to the inside of the liquid storage device (80), one end of the second indoor heat exchanger (42) can be communicated to the exhaust end or the suction end of the compressor (10), the other end of the second indoor heat exchanger (42) is communicated to the inside of the liquid storage device (80), the other end of the water tank (90) is communicated to the inside of the liquid storage device (80), the suction end of the compressor (10) can be communicated to the one end of the outdoor heat exchanger (20) or to the one end of the first indoor heat exchanger (41), or to the one end of the water tank (90).

2. The air conditioner and water heater integrated machine with temperature control dehumidification function according to claim 1, characterized in that: Further comprising a first four-way valve (51), the first four-way valve (51) comprises a first D end (D), a first C end (C), a first S end (S) and a first E end (E), the first four-way valve (51) can be switched between the following two communication states: in the first state, the first D end (D) is communicated with the first C end (C), and at the same time, the first E end (E) is communicated with the first S end (S); in the second state, the first D end (D) is communicated with the first E end (E), and at the same time, the first C end (C) is communicated with the first S end (S), The first D end (D) is communicated to the exhaust end of the compressor (10) through a first pipeline (101), the first C end (C) is communicated to one end of the outdoor heat exchanger (20) through a second pipeline (102), the first S end (S) is communicated to the suction end of the compressor (10) through a third pipeline (103), and the first E end (E) is communicated to one end of the first indoor heat exchanger (41) through a fourth pipeline (104).

3. The air conditioner and water heater integrated machine with temperature control dehumidification function according to claim 2, characterized in that: The other end of the outdoor heat exchanger (20) is communicated to the inside of the liquid storage device (80) through a fifth pipeline (105), the other end of the first indoor heat exchanger (41) is communicated to the inside of the liquid storage device (80) through a sixth pipeline (106), the other end of the second indoor heat exchanger (42) is communicated to the inside of the liquid storage device (80) through a seventh pipeline (107), and the other end of the water tank (90) is communicated to the inside of the liquid storage device (80) through an eighth pipeline (108).

4. The air conditioner and water heater integrated machine with temperature control dehumidification function according to claim 3, characterized in that: The fifth pipeline (105) is provided with a first throttling device (31), the seventh pipeline (107) is provided with a third throttling device (33), the sixth pipeline (106) and the seventh pipeline (107) are communicated to the liquid storage device (80) through the fifteenth pipeline (115), the fifteenth pipeline (115) is provided with a second throttling device (32), the eighth pipeline (108) is provided with a fourth throttling device (34), and the first indoor heat exchanger (41) and the second indoor heat exchanger (42) are arranged on the same airflow path in the room.

5. The air conditioner with temperature-controlled dehumidification function and water heating function according to claim 4, characterized in that: The end of the fifth pipeline (105) connected to the inside of the liquid storage device (80) is a first end, the first end is higher than the inner bottom surface of the liquid storage device (80) by a first height, the end of the fifteenth pipeline (115) connected to the inside of the liquid storage device (80) is a second end, the second end is higher than the inner bottom surface of the liquid storage device (80) by a second height, the end of the eighth pipeline (108) connected to the inside of the liquid storage device (80) is a third end, the third end is higher than the inner bottom surface of the liquid storage device (80) by a third height, the distance between the first end and the top of the liquid storage device (80) is a fourth height, and the fourth height is greater than the first height, the distance between the second end and the top of the liquid storage device (80) is a fifth height, and the fifth height is greater than the second height, the distance between the third end and the top of the liquid storage device (80) is a sixth height, and the sixth height is greater than the third height.

6. The air conditioner with temperature-controlled dehumidification function and water heating function according to claim 5, characterized in that: The liquid storage device (80) has a middle height separation line with half of the height, the distance between the first end and the middle height separation line is a seventh height, and the seventh height is greater than the first height, the distance between the second end and the middle height separation line is an eighth height, and the eighth height is greater than the second height, the distance between the third end and the middle height separation line is a ninth height, and the ninth height is greater than the third height.

7. The air conditioner with temperature-controlled dehumidification function and water heating function according to claim 4, characterized in that: Further comprising an indoor fan (62) and an outdoor fan (61), the outdoor fan (61) is opposite to the outdoor heat exchanger (20) to drive airflow to exchange heat with the refrigerant in the outdoor heat exchanger (20), the indoor fan (62), the first indoor heat exchanger (41) and the second indoor heat exchanger (42) are located on the same airflow path, and in the flow direction of the airflow, the second indoor heat exchanger (42) is located downstream of the first indoor heat exchanger (41), and the indoor fan (62) is located upstream of the first indoor heat exchanger (41) or downstream of the second indoor heat exchanger (42).

8. The air conditioner and water heater integrated machine with temperature controlled dehumidification function according to claim 4, characterized in that: a second four-way valve (52) is further included, the second four-way valve (52) comprises a second D end (D'), a second C end (C'), a second S end (S') and a second E end (E'), and the second four-way valve (52) can be switched between the following two communication states: in the first state, the second D end (D') and the second C end (C') are in communication, and at the same time, the second S end (S') and the second E end (E') are in communication; in the second state, the second D end (D') and the second E end (E') are in communication, and at the same time, the second C end (C') and the second S end (S') are in communication, the second D end (D') is communicated to the exhaust end of the compressor (10) through a ninth pipeline (109), the second S end (S') can be communicated to the suction end of the compressor (10) through a tenth pipeline (110), the second C end (C') can be communicated to one end of the water tank (90) through an eleventh pipeline (111), and the second E end (E') can be communicated to one end of the second indoor heat exchanger (42) through a twelfth pipeline (112); the eleventh pipeline (111) is in contact with the water tank (90) through a refrigerant pipeline and exchanges heat with water in the water tank (90), one end of the water tank (90) is one end of the refrigerant pipeline, the other end of the water tank (90) is the other end of the refrigerant pipeline, and the other end of the refrigerant pipeline is communicated to the eighth pipeline (108), and the refrigerant pipeline forms at least part of the structure of the water tank heat exchanger.

9. The air conditioner and water heater integrated machine with temperature controlled dehumidification function according to claim 8, characterized in that: the compressor comprises a first cylinder and a second cylinder, the first cylinder has a first suction port (12), the second cylinder has a second suction port (13), the first S end (S) of the first four-way valve (51) is communicated to the first suction port (12) of the first cylinder through the third pipeline (103), and the second S end (S') of the second four-way valve (52) is communicated to the second suction port (13) of the second cylinder through the tenth pipeline (110); a thirteenth pipeline (113) is further included, one end of the thirteenth pipeline (113) is communicated with the third pipeline (103), the other end of the thirteenth pipeline (113) is communicated with the tenth pipeline (110), and a control valve (70) is arranged on the thirteenth pipeline (113).

10. The air conditioner and water heater integrated machine with temperature controlled dehumidification function according to claim 9, characterized in that: Also included are an auxiliary compression cylinder having a third suction port (14) that is communicated to an upper end of the interior of the liquid storage device (80) through a fourteenth pipe (114), and the gas discharged from the auxiliary compression cylinder is mixed with the gas discharged from the first cylinder and the gas discharged from the second cylinder in the housing of the compressor and is discharged through the first pipe (101) and / or the ninth pipe (109).

11. The air conditioner and water heater integrated machine with temperature-controlled dehumidification function according to claim 8, characterized in that: The first indoor heat exchanger (41), the second indoor heat exchanger (42), the third throttling device (33) and the indoor fan (62) constitute at least part of the structure of a group of indoor unit units, the indoor unit units are multiple, and the first indoor heat exchanger (41) of each indoor unit unit is connected between the first four-way valve (51) and the liquid storage device (80), and the second indoor heat exchanger (42) of each indoor unit unit is connected between the second four-way valve (52) and the liquid storage device (80).

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