阅读说明：本技术 一种空调系统及其化霜控制方法 (Air conditioning system and defrosting control method thereof ) 是由 张霞 郭特特 白瑜 陈佳锋 吴萌雨 于 2019-10-24 设计创作，主要内容包括：本发明公开了一种空调系统及其化霜控制方法,其中空调系统包括换热模块,在换热模块上设有第一出水口和第一进水口；在热水炉上设有第二出水口；第一连接通路的一端与第一出水口连通另一端与第一进水口连通,第二出水口连通至第一连接通路上。空调系统的化霜控制方法包括：接收化霜指令,根据化霜指令将水空调本体调整为制冷模式并开启第一连接通路。化霜时,第一出水口流出的冷水与第二出水口流出的热水在第一连接通路中混合后流入第一进水口中,在换热模块中混合后的水与冷媒进行换热,冷媒从混合后的水中吸收热量,并将热量输送到外机翅片释放,由此热量由内而外进行化霜,无需风机盘管从房间吸收热量来进行化霜,不影响室内温度。(The invention discloses an air conditioning system and a defrosting control method thereof, wherein the air conditioning system comprises a heat exchange module, and a first water outlet and a first water inlet are arranged on the heat exchange module; a second water outlet is arranged on the water heater; one end of the first connecting passage is communicated with the first water outlet, the other end of the first connecting passage is communicated with the first water inlet, and the second water outlet is communicated to the first connecting passage. The defrosting control method of the air conditioning system comprises the following steps: and receiving a defrosting instruction, adjusting the water air conditioner body to a refrigeration mode according to the defrosting instruction, and opening the first connecting passage. During defrosting, cold water flowing out of the first water outlet and hot water flowing out of the second water outlet flow into the first water inlet after being mixed in the first connecting passage, the water and the refrigerant after being mixed in the heat exchange module exchange heat, the refrigerant absorbs heat from the mixed water and conveys the heat to the outer machine fin for releasing, and therefore the heat is defrosted from inside to outside without the need of a fan coil to absorb the heat from a room to defrost, and the indoor temperature is not influenced.)

1. An air conditioning system, comprising:

the water air conditioner comprises a water air conditioner body, wherein the water air conditioner body comprises a heat exchange module (1), and a first water outlet (11) and a first water inlet (12) are formed in the heat exchange module (1);

the water heater (2), there is the second water outlet (21) on the said water heater (2);

one end of the first connecting passage is communicated with the first water outlet (11), the other end of the first connecting passage is communicated with the first water inlet (12), and the second water outlet (21) is communicated to the first connecting passage.

2. Air conditioning system according to claim 1, characterized in that the second water outlet (21) is connected upstream of the first connecting passage.

3. Air conditioning system according to claim 1 or 2, further comprising a coupling tank (7), said coupling tank (7) being arranged on said first connection path downstream of said second water outlet (21).

4. Air conditioning system according to claim 1 or 2, further comprising a temperature sensor (9), said temperature sensor (9) being arranged on said first connection path downstream of said second water outlet (21).

5. Air conditioning system according to claim 1, characterized in that the water conditioner body further comprises a fan coil (3), a third water inlet (32) and a third water outlet (31) being provided on the fan coil (3), the third water inlet (32) being connected to the first water outlet (11) by a second connection, the third water outlet (31) being connected to the first water inlet (12) by a third connection.

6. Air conditioning system according to claim 5, further comprising a first flow divider (5), said first flow divider (5) being arranged downstream of said first water outlet (11) and communicating with said first water outlet (11) to divide the water flowing out from said first water outlet (11) into said first connection path or said second connection path.

7. Air conditioning system according to claim 1, characterized in that the second water outlet (21) on the water heater (2) is connected to the third water inlet (32) on the fan coil (3) by a fourth connection.

8. Air conditioning system according to claim 7, further comprising a second flow diverter (6), said second flow diverter (6) being arranged downstream of said second water outlet (21) and communicating with said second water outlet (21) to divert the water flowing out from said second water outlet (21) to said first or fourth connection.

9. Air conditioning system according to claim 1, further comprising a third water inlet (32), wherein the third water inlet (32) is arranged on the water heater (2), and wherein the second water outlet (21) on the fan coil (3) is connected with the third water inlet (32) on the water heater (2) through a fifth connection.

10. Air conditioning system according to claim 9, further comprising a radiator (4), wherein a fourth water inlet (42) and a fourth water outlet (41) are provided on the radiator (4), the fourth water inlet (42) is connected with a third water outlet (31) on the hot water boiler (2) through a sixth connecting passage; the fourth water outlet (41) is connected with a third water inlet (32) on the water heater (2) through a seventh connecting passage, and the sixth connecting passage and the seventh connecting passage are also communicated with the coupling tank (7).

11. A defrosting control method of an air conditioning system is characterized by comprising the following steps:

judging whether a defrosting instruction is received or not;

when a defrosting instruction is received, the water air conditioner body is in a refrigeration mode, and a first connecting passage is opened;

the first connecting passage is a passage between a first water outlet (11) and a first water inlet (12) in the water air conditioner body heat exchange module (1), and a second water outlet (21) on the water heater (2) is communicated to the first connecting passage.

12. The defrosting control method of an air conditioning system according to claim 11, further comprising, after the water air conditioning body is placed in the cooling mode:

closing a second connection path, wherein the second connection path is a connection path between the first water outlet (11) and a third water inlet (32) on the water air conditioner body fan coil (3).

13. The defrosting control method of an air conditioning system according to claim 11 or 12, further comprising, after the first connection path is opened:

and after receiving the defrosting completion instruction, acquiring the working mode of the water air conditioner body, and enabling the water air conditioner body to operate in the working mode.

14. A defrosting control device of an air conditioning system, comprising:

the judging module is used for judging whether a defrosting instruction is received or not;

the control module is used for enabling the water air conditioner body to be in a refrigeration mode and opening the first connecting passage when a defrosting instruction is received;

the first connecting passage is a passage between a first water outlet (11) and a first water inlet (12) in the water air conditioner body heat exchange module (1), and a second water outlet (21) on the water heater (2) is communicated to the first connecting passage.

15. A computer-readable storage medium storing computer instructions for causing a computer to execute the defrosting control method of an air conditioning system according to any one of claims 11 to 13.

Technical Field

The invention relates to the technical field of household appliances, in particular to an air conditioning system and a defrosting control method thereof.

Background

The household water air conditioner is a heat-selling product with mature use, low energy consumption, low cost and no pollution. Under the current technical conditions, the heating device is an important device for household heating.

The water air conditioner generally comprises an external unit of the water air conditioner (called as an external unit for short), a heat exchange module (also called as an internal unit) and a fan coil, wherein the external unit and the heat exchange module are equivalent to an evaporator and a condenser, the fan coil is a terminal device of the air conditioning system, and when chilled water or hot water flows through the coil pipe, the coil pipe exchanges heat with air outside the pipe, so that the air is cooled or heated.

When the water air conditioner is in a heating mode, the fins in the heat exchange module serve as condensers to release heat and heat circulating water; the fins in the outdoor unit serve as evaporators to absorb heat, so that water molecules in the air are frozen on the fins. After freezing, the heating capacity of the air conditioner is reduced, and the air conditioner can work better only by melting ice.

Therefore, the operating conditions of the water air conditioner are significantly affected by the season and the outdoor temperature. For example, when the ambient temperature is 5-15 ℃, the heating efficiency is high and the effect is good. But when the ambient temperature is lower than 5 c or a certain temperature, the heating has to face the trouble of condensing and frosting the outer machine fins. That is, the unit is shut down and enters the defrosting stage. The low temperature can cause the heating capacity of the household water air conditioner to be greatly reduced, if the unit is continuously in defrosting operation for a long time, the heating is affected while the energy consumption is serious, and the room temperature cannot be changed.

Therefore, for the household water air conditioner, the quick defrosting greatly enhances the low-temperature heating capacity of the household water air conditioner, and improves the heating effect of users. The traditional defrosting mode is that a water air conditioner is converted from a heating mode to a cooling mode, a fan coil absorbs heat from a room, and the heat is released on an external machine fin through a refrigerant.

Disclosure of Invention

Therefore, the technical problem to be solved by the present invention is to overcome the defect of room temperature drop caused by the conventional defrosting method in the prior art, and to provide an air conditioning system and a defrosting control method thereof.

According to a first aspect, an embodiment of the present invention provides an air conditioning system, including:

the water air conditioner body comprises a heat exchange module, and a first water outlet and a first water inlet are formed in the heat exchange module;

the water heater is provided with a second water outlet;

one end of the first connecting passage is communicated with the first water outlet, the other end of the first connecting passage is communicated with the first water inlet, and the second water outlet is communicated to the first connecting passage.

The embodiment of the invention adds the water heater communicated with the water air conditioner body on the basis of the water air conditioner body, when defrosting is needed, the water air conditioner body is only needed to be in a refrigeration mode, at the moment, water flowing out of a first water outlet of a heat exchange module is cold water, the cold water flows into a first connecting passage, hot water flowing out of the water heater also flows into the first connecting passage due to the fact that the first connecting passage is communicated with a second water outlet on the water heater, the cold water and the hot water in the first connecting passage are mixed and then flow into a first water inlet of the heat exchange module, the water mixed in the heat exchange module exchanges heat with a refrigerant, the refrigerant absorbs heat from the mixed water and conveys the heat to an outer machine fin to release, and therefore the heat is defrosted from inside to outside. The defrosting is carried out without the fan coil absorbing heat from the room, namely, the fan coil can still continuously supply heat during defrosting. Meanwhile, the specific heat of water is larger than that of air, so that the hot water in the hot water furnace is used for providing energy, and compared with the prior art in which a fan coil is used for absorbing the heat of a room, the defrosting can be realized quickly.

With reference to the first aspect, in a first embodiment of the first aspect, the second water outlet is communicated to upstream of the first connecting passage.

With reference to the first aspect or the first implementation manner of the first aspect, in a second implementation manner of the first aspect, the air conditioning system further includes a coupling tank, and the coupling tank is disposed on the first connection path and located downstream of the second water outlet.

With reference to the first aspect or the first implementation manner of the first aspect, in a third implementation manner of the first aspect, the air conditioning system further includes a temperature sensor, and the temperature sensor is disposed on the first connection path and located downstream of the second water outlet.

With reference to the first aspect, in a fourth embodiment of the first aspect, the water air conditioner body further includes: the fan coil is provided with a third water inlet and a third water outlet, the third water inlet is connected with the first water outlet through a second connecting passage, and the third water outlet is connected with the first water inlet through a third connecting passage.

With reference to the fourth aspect or the fifth aspect, in the fifth aspect, the water supply device further includes a first flow diverter that is provided downstream of the first water outlet, communicates with the first water outlet, and diverts water flowing out of the first water outlet to the first connection path or the second connection path.

With reference to the first aspect, in a sixth embodiment of the first aspect, the second water outlet on the water heater is connected to the third water inlet on the fan coil through a fourth connecting passage.

With reference to the sixth embodiment of the first aspect, in the seventh embodiment of the first aspect, the water dispenser further includes a second flow splitter that is provided downstream of the second water outlet, communicates with the second water outlet, and splits water flowing out of the second water outlet to the first connection path or the fourth connection path.

With reference to the first aspect, in an eighth embodiment of the first aspect, the water heater further includes a third water inlet, the third water inlet is disposed on the water heater, and the second water outlet on the fan coil is connected to the third water inlet on the water heater through a fifth connection path.

With reference to the eighth embodiment of the first aspect, in the ninth embodiment of the first aspect, the water heater further includes a radiator, a fourth water inlet and a fourth water outlet are provided on the radiator, and the fourth water inlet is connected to a third water outlet on the water heater through a sixth connecting passage; the fourth water outlet is connected with a third water inlet on the water heater through a seventh connecting passage, and the sixth connecting passage and the seventh connecting passage are also communicated with the coupling tank.

According to a second aspect, an embodiment of the present invention provides a defrosting control method of an air conditioning system, including the steps of: judging whether a defrosting instruction is received or not; when a defrosting instruction is received, the water air conditioner body is in a refrigeration mode, and a first connecting passage is opened; the first connecting passage is a passage between a first water outlet and a first water inlet in the water air conditioner body heat exchange module, and a second water outlet on the water heater is communicated to the first connecting passage.

According to the defrosting control method of the air conditioning system, when a defrosting instruction is received, only the water air conditioning body needs to be in a refrigeration mode, at the moment, water flowing out of a first water outlet of the heat exchange module is cold water, the cold water flows into a first connecting passage, hot water flowing out of the hot water boiler also flows into the first connecting passage due to the fact that the first connecting passage is communicated with a second water outlet of the hot water boiler, the cold water and the hot water in the first connecting passage are mixed and then flow into a first water inlet of the heat exchange module, the mixed water and a refrigerant in the heat exchange module exchange heat, the refrigerant absorbs heat from the mixed water and conveys the heat to an outer machine fin to release, and therefore the heat is defrosted from inside to outside. The defrosting is carried out without the fan coil absorbing heat from the room, namely, the fan coil can still continuously supply heat during defrosting. Meanwhile, the specific heat of water is larger than that of air, so that the hot water in the hot water furnace is used for providing energy, and compared with the prior art in which a fan coil is used for absorbing the heat of a room, the defrosting can be realized quickly.

With reference to the second aspect, in the first embodiment of the second aspect, after the water air conditioner body is placed in the cooling mode, the method further includes: and closing a second connecting passage, wherein the second connecting passage is a connecting passage between the first water outlet and a third water inlet on the fan coil of the water air conditioner body.

With reference to the second aspect or the first embodiment of the second aspect, in the second embodiment of the second aspect, after the opening of the first connection path, the method further includes: and after receiving the defrosting completion instruction, acquiring the working mode of the water air conditioner body, and enabling the water air conditioner body to operate in the working mode.

According to a third aspect, an embodiment of the present invention provides a defrosting control apparatus of an air conditioning system, including:

the judging module is used for judging whether a defrosting instruction is received or not;

the control module is used for enabling the water air conditioner body to be in a refrigeration mode and opening the first connecting passage when a defrosting instruction is received;

the first connecting passage is a passage between a first water outlet and a first water inlet in the water air conditioner body heat exchange module, and a second water outlet on the water heater is communicated to the first connecting passage.

According to a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium storing computer instructions for causing a computer to execute the defrosting control method of an air conditioning system described in the second aspect or any one of the embodiments of the second aspect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of an air conditioning system according to embodiment 1 of the present invention;

fig. 2 is a schematic flow chart of a defrosting control method of an air conditioning system according to embodiment 2 of the present invention;

fig. 3 is a schematic structural diagram of a defrosting control device of an air conditioning system according to embodiment 3 of the present invention.

Description of reference numerals:

1. a heat exchange module; 2. a water heater; 3. a fan coil; 4. heating radiators; 5. a first splitter; 6. a second flow splitter; 7. a coupling tank; 8. an outdoor unit of a water air conditioner; 9. a temperature sensor; 11. a first water outlet; 12. a first water inlet; 21. a second water outlet; 22. a second water inlet; 31. a third water outlet; 32. a third water inlet; 41. a fourth water outlet; 42. a fourth water inlet; 43. a circulation pump; 44. a flow regulating valve.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.