CN107246683A

CN107246683A - Air-conditioning system and its control method

Info

Publication number: CN107246683A
Application number: CN201710495162.0A
Authority: CN
Inventors: 游斌; 张敏
Original assignee: Midea Group Co Ltd; Midea Group Wuhan Refrigeration Equipment Co Ltd
Current assignee: Midea Group Co Ltd; Midea Group Wuhan Refrigeration Equipment Co Ltd
Priority date: 2017-06-26
Filing date: 2017-06-26
Publication date: 2017-10-13

Abstract

The invention discloses a kind of air-conditioning system and its control method, the system includes：Compressor, outdoor heat exchanger, throttle part and indoor heat exchanger；Energy storage device, energy storage device is disposed in the interior side, and is arranged in parallel with indoor heat exchanger, and energy storage device includes energy-accumulating medium, and energy-accumulating medium is used to store heat or cold；Detection module, detection module is used for the temperature for detecting the energy-accumulating medium in indoor environment temperature, energy storage device；Control module, control module is used to obtaining the present mode of operation of air-conditioning system, and according to the refrigerant type of flow in the temperature control air-conditioning system of energy-accumulating medium in the present mode of operation, indoor environment temperature and energy storage device of air-conditioning system.The air-conditioning system of the present invention, to realize that small number air-conditioning exports big refrigerating capacity or heating capacity, so as to improve the comfortableness that air-conditioning system is used, and can reduce the consumption of the energy by controlling the refrigerant type of flow in air-conditioning system.

Description

Air-conditioning system and its control method

Technical field

The present invention relates to air-conditioning technical field, more particularly to a kind of air-conditioning system and a kind of control method of air-conditioning system.

Background technology

At present, the air conditioner of many occasions is not round-the-clock oepration at full load.Such as, the sky of meeting room or dining room parlor Device is adjusted, just needs High cooling power to export during only being had dinner in session or dining room parlor, and air conditioner is all when most of Remain shut off state.

However, in order to which the cold for meeting the session is exported, user typically can install the air-conditioning of big number in meeting room Device, but the air conditioner for installing big number can bring some problems, such as, install the air conditioner of big number (for example, 5 refrigeration The air conditioner of amount), the initial outlay cost of air conditioner can be increased, while the electric load in the unit interval can be increased.On the other hand, The air conditioner of high-power number is installed, the outdoor unit weight due to outdoor unit than low power air conditioner is installed and compared with greatly Difficulty is, it is necessary to more man power and materials.

And if the air conditioner of small number is installed in dining room parlor or meeting, may again can cause when people is more, make Cold power is inadequate, the comfortableness that influence user uses.If in meeting or just 1 hour opens air conditioner refrigerating before the meal, meeting again The problems such as because of wall, window cold draining, cause cold consumption.In addition, if in the peak period of power consumption, user is badly in need of air-conditioning Fast-refrigerating is heated, then again may be low because of line voltage, or now power is inadequate for air-conditioning, and is had a strong impact on user and used sky The comfortableness of tune.

The content of the invention

It is contemplated that at least solving one of technical problem in above-mentioned technology to a certain extent.

Therefore, first purpose of the present invention is to propose a kind of air-conditioning system, can be by controlling in air-conditioning system The refrigerant type of flow, to realize that small number air-conditioning exports big refrigerating capacity or heating capacity, so that improves that air-conditioning system uses is comfortable Property, and reduce the consumption of the energy.

Second object of the present invention is to propose a kind of control method of air-conditioning system.

To reach above-mentioned purpose, first aspect present invention embodiment proposes a kind of air-conditioning system, including：Compressor, room External heat exchanger, throttle part and indoor heat exchanger；Energy storage device, the energy storage device is disposed in the interior side, and with the interior Heat exchanger is arranged in parallel, and the energy storage device includes energy-accumulating medium, and the energy-accumulating medium is used to store heat or cold；Detect mould Block, the detection module is used for the temperature for detecting indoor environment temperature, energy-accumulating medium in the energy storage device；Control module, The control module is used for the present mode of operation for obtaining the air-conditioning system, and according to the current operation mould of the air-conditioning system Refrigerant stream in formula, the indoor environment temperature and the energy storage device in air-conditioning system described in the temperature control of energy-accumulating medium Flowing mode.

Air-conditioning system according to embodiments of the present invention, is detected in indoor environment temperature, energy storage device by detection module The temperature of energy-accumulating medium, and by the present mode of operation of control module acquisition air-conditioning system, and working as according to air-conditioning system Refrigerant flowing side in preceding operational mode, indoor environment temperature and energy storage device in the temperature control air-conditioning system of energy-accumulating medium Formula.Thus, the air-conditioning system can be by controlling the refrigerant type of flow in air-conditioning system, to realize that small number air-conditioning output is big Refrigerating capacity or heating capacity, so as to improve the comfortableness that air-conditioning system is used, and reduce the consumption of the energy.

In addition, the air-conditioning system proposed according to the above embodiment of the present invention can also have technical characteristic additional as follows：

In one embodiment of the invention, when the present mode of operation of the air-conditioning system is energy storage pattern, wherein, If the indoor environment temperature is more than the first preset temperature, the control module then controls the refrigerant stream of the compressor discharge Throttled after the outdoor heat exchanger by the throttle part, then flow through and the compression is returned to after the energy storage device Machine, so that the energy-accumulating medium carries out storage cold, until the temperature of the energy-accumulating medium is less than the first temperature threshold or institute The time for stating air-conditioning system into energy storage pattern reaches the first preset time；If the indoor environment temperature is less than or equal to second Preset temperature, the control module then controls the refrigerant of the compressor discharge to flow through after the energy storage device by the throttling Part is throttled, and then flows through and the compressor is returned to after the outdoor heat exchanger, so that the energy-accumulating medium is stored Heat, until the temperature of the energy-accumulating medium is more than second temperature threshold value or the air-conditioning system enters the time of energy storage pattern The second preset time is reached, wherein, the second temperature threshold value is more than first temperature threshold, and second preset temperature is small In first preset temperature.

In one embodiment of the invention, when the present mode of operation of the air-conditioning system is refrigeration mode, if The indoor environment temperature is more than the temperature between first object temperature and the indoor environment temperature and the first object temperature Spend difference and be more than the first fiducial temperature, the control module then controls the refrigerant of the compressor discharge to flow through the outdoor heat exchange Throttled after device by the throttle part, then flow through and the compressor is returned to after the indoor heat exchanger, so that described Air-conditioning system is freezed, and judges whether the temperature of the energy-accumulating medium is less than the indoor environment temperature, wherein, if institute State energy-accumulating medium temperature be less than the indoor environment temperature, the control module then control the energy storage device released cold quantity with Carry out auxiliary cooling；If the temperature of the energy-accumulating medium is more than or equal to the indoor environment temperature, the control module is then controlled Make the energy storage device and stop heat exchange work.

In one embodiment of the invention, when the indoor environment temperature is more than first object temperature and the interior When temperature gap between environment temperature and the first object temperature is less than or equal to the first fiducial temperature, the control module is also For judging whether the temperature of the energy-accumulating medium is less than the first object temperature, wherein, if the temperature of the energy-accumulating medium Degree is less than the first object temperature, and the control module then controls the indoor heat exchanger to stop heat exchange work, and controls institute Energy storage device released cold quantity is stated to be freezed；If the temperature of the energy-accumulating medium is more than or equal to the first object temperature, The control module then controls the refrigerant of compressor discharge to flow through after the outdoor heat exchanger by the throttle part to enter Row throttling, then flows through and the compressor is returned to after the indoor heat exchanger, so that the air-conditioning system is freezed, and judge Whether the temperature of the energy-accumulating medium is less than the indoor environment temperature, and is less than the room in the temperature of the energy-accumulating medium The energy storage device released cold quantity is controlled to carry out auxiliary cooling during interior environment temperature.

In one embodiment of the invention, when the present mode of operation of the air-conditioning system is heating mode, if The indoor environment temperature is less than the temperature between the second target temperature and second target temperature and the indoor environment temperature Spend difference and be more than the second fiducial temperature, the control module then controls the refrigerant of the compressor discharge to flow through the indoor heat exchange Throttled after device by the throttle part, then flow through and the compressor is returned to after the outdoor heat exchanger, so that described Air-conditioning system is heated, and judges whether the temperature of the energy-accumulating medium is more than the indoor environment temperature, wherein, if institute The temperature for stating energy-accumulating medium is more than the indoor environment temperature, the control module then control energy storage device release heat with Carry out auxiliary heating；If the temperature of the energy-accumulating medium is less than or equal to the indoor environment temperature, the control module control The energy storage device stops heat exchange work.

In one embodiment of the invention, when the indoor environment temperature is less than the second target temperature and described second When temperature gap between target temperature and the indoor environment temperature is more than or equal to the second fiducial temperature, the control module is also For judging whether the temperature of the energy-accumulating medium is more than second target temperature, wherein, if the temperature of the energy-accumulating medium Degree is more than second target temperature, and the control module then controls the indoor heat exchanger to stop heat exchange work, and controls institute Energy storage device release heat is stated to be heated；If the temperature of the energy-accumulating medium is less than or equal to second target temperature, The control module then controls the refrigerant of compressor discharge to flow through after the indoor heat exchanger by the throttle part to enter Row throttling, then flows through and the compressor is returned to after the outdoor heat exchanger, so that the air-conditioning system is heated, and judge Whether the temperature of the energy-accumulating medium is more than the indoor environment temperature, and is more than the room in the temperature of the energy-accumulating medium The energy storage device release heat is controlled to carry out auxiliary heating during interior environment temperature.

To reach above-mentioned purpose, second aspect of the present invention embodiment proposes a kind of control method of air-conditioning system, described Air-conditioning system includes compressor, outdoor heat exchanger, throttle part, indoor heat exchanger and energy storage device, and the energy storage device is set Side, and being arranged in parallel with the indoor heat exchanger indoors, the energy storage device includes energy-accumulating medium, and the energy-accumulating medium is used for Heat or cold are stored, the control method comprises the following steps：Detect the energy storage in indoor environment temperature, the energy storage device The temperature of medium；The present mode of operation of the air-conditioning system is obtained, and according to the present mode of operation of the air-conditioning system, institute State the refrigerant flowing side in air-conditioning system described in the temperature control of energy-accumulating medium in indoor environment temperature and the energy storage device Formula.

The control method of air-conditioning system according to embodiments of the present invention, is detected in indoor environment temperature, energy storage device first Energy-accumulating medium temperature, then obtain air-conditioning system present mode of operation, and according to the present mode of operation of air-conditioning system, The refrigerant type of flow in indoor environment temperature and energy storage device in the temperature control air-conditioning system of energy-accumulating medium.Thus, should Method can be by controlling the refrigerant type of flow in air-conditioning system, to realize the small big refrigerating capacity of number air-conditioning output or heat Amount, so as to improve the comfortableness that air-conditioning system is used, and reduces the consumption of the energy.

In addition, the control method of the air-conditioning system proposed according to the above embodiment of the present invention can also have what is added as follows Technical characteristic：

In one embodiment of the invention, when the present mode of operation of the air-conditioning system is energy storage pattern, wherein, If the indoor environment temperature is more than the first preset temperature, controls the refrigerant of the compressor discharge to flow through the outdoor and change Throttled after hot device by the throttle part, then flow through and the compressor is returned to after the energy storage device, so that described Energy-accumulating medium carries out storage cold, until the temperature of the energy-accumulating medium is less than the first temperature threshold or the air-conditioning system is entered The time for entering energy storage pattern reaches the first preset time；If the indoor environment temperature is less than or equal to the second preset temperature, Control the refrigerant of compressor discharge to flow through after the energy storage device to be throttled by the throttle part, then flow through institute State and the compressor is returned to after outdoor heat exchanger, so that the energy-accumulating medium carries out storage heat, until the energy-accumulating medium The time that temperature is more than second temperature threshold value or the air-conditioning system into energy storage pattern reaches the second preset time, wherein, The second temperature threshold value is more than first temperature threshold, and second preset temperature is less than first preset temperature.

In one embodiment of the invention, when the present mode of operation of the air-conditioning system is refrigeration mode, if The indoor environment temperature is more than the temperature between first object temperature and the indoor environment temperature and the first object temperature Spend difference and be more than the first fiducial temperature, then control the refrigerant of the compressor discharge to flow through after the outdoor heat exchanger by described Throttle part is throttled, and then flows through and the compressor is returned to after the indoor heat exchanger, so that the air-conditioning system is carried out Refrigeration, and judge whether the temperature of the energy-accumulating medium is less than the indoor environment temperature, wherein, if the energy-accumulating medium Temperature is less than the indoor environment temperature, then controls the energy storage device released cold quantity to carry out auxiliary cooling；If the storage The temperature of energy medium is more than or equal to the indoor environment temperature, then controls the energy storage device to stop heat exchange work.

In one embodiment of the invention, when the indoor environment temperature is more than first object temperature and the interior When temperature gap between environment temperature and the first object temperature is less than or equal to the first fiducial temperature, the energy storage is also judged Whether the temperature of medium is less than the first object temperature, wherein, if the temperature of the energy-accumulating medium is less than first mesh Temperature is marked, then controls the indoor heat exchanger to stop heat exchange work, and control the energy storage device released cold quantity to be freezed； If the temperature of the energy-accumulating medium is more than or equal to the first object temperature, the refrigerant of the compressor discharge is controlled to flow through Throttled after the outdoor heat exchanger by the throttle part, then flow through and the compression is returned to after the indoor heat exchanger Machine, so that the air-conditioning system is freezed, and judges whether the temperature of the energy-accumulating medium is less than the indoor environment temperature, And control the energy storage device released cold quantity to carry out when the temperature of the energy-accumulating medium is less than the indoor environment temperature Auxiliary cooling.

In one embodiment of the invention, when the present mode of operation of the air-conditioning system is heating mode, if The indoor environment temperature is less than the temperature between the second target temperature and second target temperature and the indoor environment temperature Spend difference and be more than the second fiducial temperature, then control the refrigerant of the compressor discharge to flow through after the indoor heat exchanger by described Throttle part is throttled, and then flows through and the compressor is returned to after the outdoor heat exchanger, so that the air-conditioning system is carried out Heat, and judge whether the temperature of the energy-accumulating medium is more than the indoor environment temperature, wherein, if the energy-accumulating medium Temperature is more than the indoor environment temperature, then controls the energy storage device release heat to carry out auxiliary heating；If the storage The temperature of energy medium is less than or equal to the indoor environment temperature, then controls the energy storage device to stop heat exchange work.

In one embodiment of the invention, when the indoor environment temperature is less than the second target temperature and described second When temperature gap between target temperature and the indoor environment temperature is more than or equal to the second fiducial temperature, the energy storage is also judged Whether the temperature of medium is more than second target temperature, wherein, if the temperature of the energy-accumulating medium is more than second mesh Temperature is marked, then controls the indoor heat exchanger to stop heat exchange work, and control the energy storage device release heat to be heated； If the temperature of the energy-accumulating medium is less than or equal to second target temperature, the refrigerant of the compressor discharge is controlled to flow through Throttled after the indoor heat exchanger by the throttle part, then flow through and the compression is returned to after the outdoor heat exchanger Machine, so that the air-conditioning system is heated, and judges whether the temperature of the energy-accumulating medium is more than the indoor environment temperature, And control the energy storage device release heat to carry out when the temperature of the energy-accumulating medium is more than the indoor environment temperature Auxiliary heating.

The advantage of the additional aspect of the present invention will be set forth in part in the description, and will partly become from the following description Obtain substantially, or recognized by the practice of the present invention.

Brief description of the drawings

Fig. 1 is the structural representation of air-conditioning system according to an embodiment of the invention.

Fig. 2 is that the energy storage pattern of air-conditioning system according to embodiments of the present invention stores up the operation schematic diagram of cold state.

Fig. 3 is the operation schematic diagram of the energy storage pattern heat accumulation state of air-conditioning system according to embodiments of the present invention.

Fig. 4 is the operation schematic diagram of the refrigeration mode of air-conditioning system according to embodiments of the present invention.

Fig. 5 is the operation schematic diagram of the heating mode of air-conditioning system according to embodiments of the present invention.

Fig. 6 is the flow chart of the control method of air-conditioning system according to an embodiment of the invention.

Reference：Compressor 1, check valve 2, outdoor heat exchanger 3, four-way valve 4, indoor heat exchanger 5, indoor heat exchanger side Pipeline 6, throttle part 7, auxiliary throttle part 8, outdoor heat exchanger pipeline 9, energy storage device 10, indoor fan 11, energy storage dissipate Hot-air fan 12, outdoor fan 13, the first triple valve 14, the second triple valve 15, indoor temperature transmitter 16, energy-accumulating medium temperature are passed Sensor 17, indoor energy storage lateral line 18, energy-accumulating medium 19, indoor set 20 and outdoor unit 21.

Embodiment

Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.

The air-conditioning system and its control method of the embodiment of the present invention described below in conjunction with the accompanying drawings.

As shown in figure 1, the air-conditioning system of the embodiment of the present invention includes：Compressor 1, outdoor heat exchanger 3, throttle part 7, room Interior heat exchanger 5, the detection module of energy storage device 10 and control module, wherein, detection module and control module embody not in figure.

Wherein, as shown in figure 1, energy storage device 10 is disposed in the interior side, and it is arranged in parallel with indoor heat exchanger 5, energy storage dress Putting 10 includes energy-accumulating medium 19, and energy-accumulating medium 19 is used to store heat or cold.Wherein, the material of energy-accumulating medium 19 can be according to reality Border situation is demarcated.

Detection module is used for the temperature for detecting the energy-accumulating medium 19 in indoor environment temperature, energy storage device 10.

In an embodiment of the present invention, as shown in figure 1, detection module may include indoor temperature transmitter 16 and energy-accumulating medium Temperature sensor 17.Specifically, detection module can be distinguished by indoor temperature transmitter 16 and energy-accumulating medium temperature sensor 17 Detect the temperature of indoor environment temperature, energy-accumulating medium 19 in energy storage device 10.

Control module is used to obtaining the present mode of operation of air-conditioning system, and according to the present mode of operation of air-conditioning system, The refrigerant type of flow in indoor environment temperature and energy storage device 10 in the temperature control air-conditioning system of energy-accumulating medium 19.It should say Bright, air-conditioning system of the invention may include plurality of operating modes, for example, energy storage pattern, refrigeration mode, heating mode and sending Wind pattern etc..

It should be noted that as shown in figure 1, when air-conditioning system is with energy storage mode operation, control module is controllable indoor Machine 20 is closed, outdoor unit 21 and energy storage device 10 can UNICOM be a coolant circulating system, the refrigeration now produced Amount or heating capacity, will be stored in energy storage device 10.Air-conditioning system when refrigeration mode or heating mode are run, indoor set 20 with Outdoor unit 21 can UNICOM be a refrigeration or the coolant circulating system that heats, while energy storage device 10 is also deposited to inside indoor release The cold or heat of storage.

Furthermore, in one embodiment of the invention, as shown in Fig. 2 when the present mode of operation of air-conditioning system During for energy storage pattern, if indoor environment temperature is more than the first preset temperature, control module then controls the refrigerant that compressor 1 is discharged Flow through after outdoor heat exchanger 3 and to be throttled by throttle part 7, then flow through and compressor 1 is returned to after energy storage device 10, so that storage Energy medium 19 carries out storage cold, until the temperature of energy-accumulating medium 19 is less than the first temperature threshold or air-conditioning system enters energy storage The time of pattern reaches the first preset time.Wherein, the first preset temperature, the first temperature threshold and the first preset time can roots Demarcated according to actual conditions, for example, the first preset temperature can be 26 DEG C, the first temperature threshold can be 10 DEG C, first it is default when Between can be 2h (hour).

Specifically, when air-conditioning system present mode of operation be energy storage pattern, and indoor environment temperature be more than first preset During temperature, control module can control indoor fan 11 be closed so that the refrigerant in indoor heat exchanger 5 not with Interior Space Gas carries out cold exchange.However, the refrigerant of this space-time adjusting system only carried out with the energy-accumulating medium 19 in energy storage device 10 it is cold exchange, Energy storage radiator fan 12 is controlled to be also at closed mode simultaneously, then the cold that air-conditioning system indoor is produced passes through energy-accumulating medium 19 Phase transformation or temperature change be stored in energy storage device 10, so as to reach the purpose being stored in cold in energy storage device 10.

For the ease of the description of this invention, using the first preset temperature as 26 DEG C, the first temperature threshold is 10 DEG C, and first is pre- If the time be 2h exemplified by illustrate.Wherein, when the present mode of operation of air-conditioning system is energy storage pattern, if detection module Indoor environment temperature is detected for 28 DEG C (such as, indoor environment temperature in summer) by indoor temperature transmitter 16, i.e., it is indoor Environment temperature is higher than the first preset temperature, then control module can control refrigerant through the outlet of compressor 1 into four-way valve 4, and pass through Four-way valve 4 flows into outdoor heat exchanger 3.Control outdoor fan 13 to run simultaneously, taken away by outdoor air cold in outdoor heat exchanger 3 The heat of matchmaker, i.e. refrigerant carries out heat exchange in outdoor heat exchanger 3.

Then, the refrigerant flows into check valve 2 through outdoor heat exchanger lateral line 9, and the rear throttle part 7 that flows into is throttled, then Enter energy storage device 10 by the first triple valve 14 and indoor energy storage lateral line 18 afterwards, now, control module can control energy storage and dissipate Hot-air fan 12 is closed, and the cold that the refrigerant is carried is by energy-accumulating medium 19 by temperature change or phase change memory in storage In energy device 10.The refrigerant enters compressor 1, then after the outflow of energy storage device 10 by the second triple valve 15 and four-way valve 4 Discharged after being compressed again by compressor 1, complete a circulation.

In the cycle, indoor heat exchanger lateral line 6 is closed, and indoor heat exchanger 5 and indoor fan 11 do not work, phase When the indoor set 20 in air conditioner does not work, only energy storage device 10 stores cold.Now, what air-conditioning system indoor was produced is cold Amount, is stored in energy storage device 10 by the phase transformation or temperature change of energy-accumulating medium 19, the storage cold of energy storage device 10, until The temperature of energy-accumulating medium 19 is less than 10 DEG C, or operation duration of the air-conditioning system in this state reaches 2h.

In addition, in an embodiment of the present invention, as shown in figure 3, when the present mode of operation of air-conditioning system is energy storage pattern When, if indoor environment temperature is less than or equal to the second preset temperature, the refrigerant that control module then controls compressor 1 to discharge flows through storage It can be throttled after device 10 by throttle part 7, then flow through and compressor 1 is returned to after outdoor heat exchanger 3, so that energy-accumulating medium 19 carry out storage heat, until the temperature of energy-accumulating medium 19 is more than second temperature threshold value or air-conditioning system enters energy storage pattern Time reaches the second preset time, wherein, second temperature threshold value is more than the first temperature threshold, and it is pre- that the second preset temperature is less than first If temperature, second temperature threshold value, the second preset temperature and the second preset time can be demarcated according to actual conditions.

Specifically, when air-conditioning system present mode of operation be energy storage pattern, and indoor environment temperature be less than or equal to second During preset temperature, control module can control indoor fan 11 be closed so that the refrigerant in indoor heat exchanger 5 not with room Interior air carries out heat exchange.However, the refrigerant of this space-time adjusting system only carries out heat with the energy-accumulating medium 19 in energy storage device 10 Exchange, while controlling energy storage radiator fan 12 to be also at closed mode, then the heat that air-conditioning system indoor is produced passes through energy storage The phase transformation of medium 19 or temperature change are stored in energy storage device 10, and heat is stored in energy storage device 10 so as to reach Purpose.

For the ease of the description of this invention, using the second preset temperature as 18 DEG C, second temperature threshold value is 70 DEG C, and second is pre- If the time be 2.5h exemplified by illustrate.Wherein, when the present mode of operation of air-conditioning system is energy storage pattern, if detection mould It is that 8 DEG C, i.e. indoor environment temperature are less than the second preset temperature that block detects indoor environment temperature by indoor temperature transmitter 16, Then control module can control refrigerant through the outlet of compressor 1 into four-way valve 4, and pass through the second triple valve 15 inflow energy storage device 10.Control energy storage radiator fan 12 not run simultaneously, the heat that the refrigerant is carried by energy-accumulating medium 19 by temperature change or Phase transformation, is stored in energy storage device 10.

Then, the refrigerant is flowed out from energy storage device 10, and the first triple valve 14 is flowed into by indoor energy storage lateral line 18, then Throttle part 7 is flowed into afterwards and auxiliary throttle part 8 is throttled, and then flows into outdoor heat exchange by outdoor heat exchanger pipeline 9 Device 3.Control module control outdoor fan 11 is operated, and discharges the cold of refrigerant carrying, the refrigerant comes out from outdoor heat exchanger 3 Afterwards, then through four-way valve 4 enter compressor 1, discharged after then being compressed again by compressor 1, complete a circulation.

In the cycle, indoor heat exchanger lateral line 6 is closed, and indoor heat exchanger 5 and indoor fan 11 do not work, phase When the indoor set 20 in air conditioner does not work, only energy storage device 10 stores heat.Now, the heat that air-conditioning system indoor is produced Amount, is stored in energy storage device 10, the storing heat of energy storage device 10 by the phase transformation or temperature change of energy-accumulating medium 19, until The temperature of energy-accumulating medium 19 is higher than 70 DEG C, or operation duration of the air-conditioning system in this state reaches 2.5h.

In one embodiment of the invention, as shown in figure 4, when the present mode of operation of air-conditioning system is refrigeration mode When, if indoor environment temperature is more than the temperature difference between first object temperature and indoor environment temperature and first object temperature Value is more than the first fiducial temperature, and the refrigerant that control module then controls compressor 1 to discharge is flowed through after outdoor heat exchanger 3 by restriction Part 7 is throttled, and then flows through and compressor 1 is returned to after indoor heat exchanger 5, so that air-conditioning system is freezed, and judges energy storage Whether the temperature of medium 19 is less than indoor environment temperature, wherein, if the temperature of energy-accumulating medium 19 is less than indoor environment temperature, control Molding block then controls the released cold quantity of energy storage device 10 to carry out auxiliary cooling, if the temperature of energy-accumulating medium 19 is more than or equal to interior Environment temperature, control module then controls energy storage device 10 to stop heat exchange work.Wherein, first object temperature and the first fiducial temperature It can be demarcated according to actual conditions.

Furthermore, in another embodiment of the present invention, as shown in figure 4, when indoor environment temperature is more than first When temperature gap between target temperature and indoor environment temperature and first object temperature is less than or equal to the first fiducial temperature, control Molding block is additionally operable to judge whether the temperature of energy-accumulating medium 19 is less than first object temperature, wherein, if the temperature of energy-accumulating medium 19 Degree is less than first object temperature, and control module then controls indoor heat exchanger 5 to stop heat exchange work, and controls energy storage device 10 to discharge Cold is to be freezed.

If the temperature of energy-accumulating medium 19 is more than or equal to first object temperature, control module then controls what compressor 1 was discharged Refrigerant is flowed through after outdoor heat exchanger 3 and throttled by throttle part 7, then flows through and compressor 1 is returned to after indoor heat exchanger 5, So that air-conditioning system is freezed, and judges whether the temperature of energy-accumulating medium 19 is less than indoor environment temperature, and it is situated between in energy storage The released cold quantity of energy storage device 10 is controlled to carry out auxiliary cooling when the temperature of matter 19 is less than indoor environment temperature.

For the ease of the description of this invention, using first object temperature as 25 DEG C, the first fiducial temperature is progress exemplified by 1 DEG C Explanation.Wherein, when the present mode of operation of air-conditioning system is refrigeration mode, if detection module passes through indoor temperature transmitter 16 detect indoor environment temperature for 29 DEG C, i.e. the temperature gap between current indoor environment temperature and first object temperature For 4 DEG C, more than the first fiducial temperature (1 DEG C), then control module can control indoor set 20 and the UNICOM of outdoor unit 21 of air-conditioning system Run for a coolant circulating system, i.e. air-conditioning system by refrigeration mode.

Now, control module can control the refrigerant in air-conditioning system pipeline, be compressed by compressor 1 after discharge, through four-way valve 4 Flow into outdoor heat exchanger 3.Control outdoor fan 13 to run simultaneously, the heat of refrigerant in outdoor heat exchanger 3 is taken away by outdoor air Amount.Then, the refrigerant flows into throttle part 7 through outdoor heat exchanger lateral line 9 and check valve 2 and throttled, and then passes through first Triple valve 14 and indoor heat exchanger lateral line 6 get in heat exchanger 5.Control module control indoor fan 11 is run, and interior is changed Refrigerant in hot device 5 and room air carry out it is cold exchanges, the cold of air-conditioning system indoor generation is discharged into by indoor fan 11 Indoor.

Then, the refrigerant enters compressor 1 after the outflow of indoor heat exchanger 5 through the second triple valve 15 and four-way valve 4, then Discharged after being compressed again by compressor 1, complete a circulation.

In the cycle, indoor energy storage lateral line 18 is closed, and refrigerant now realizes system not through energy storage device 10 Circulation.If the Current Temperatures that now detection module detects energy-accumulating medium 19 by energy-accumulating medium temperature sensor 17 are 2 DEG C, low In current indoor environment temperature (29 DEG C), and current indoor environment temperature remains above first object temperature (25 DEG C), then controls Molding block can control energy storage radiator fan 12 and operate, and energy storage device 10 discharges the cold of storage inside, further to reduce indoor Environment temperature.

Furthermore, after air-conditioning system runs a period of time in cooling mode, the energy storage in energy storage device 10 is situated between Matter 19 causes the temperature of energy-accumulating medium 19 to rise to 23 DEG C by 2 DEG C, indoor environment temperature freezes because of indoor set 20 because of released cold quantity And energy storage device 10 discharges the cold of internal reservoir, indoor environment temperature is reduced to 26 DEG C.

Now, indoor environment temperature and the difference of first object temperature are equal to the first fiducial temperature (1 DEG C), i.e. indoor environment Temperature is close to first object temperature.Now, control module can control air-conditioning system and preferentially utilize the cold inside energy storage device 10 Refrigeration, i.e. control indoor set 20 and outdoor unit 21 are out of service, and control energy storage radiator fan 12 to remain in operation, and are filled by energy storage Put the cold reduction room temperature of 10 independent storage insides.Energy storage radiator fan 12 is run after a period of time again, indoor temperature reduction To 25 DEG C, energy-accumulating medium 19 is 24 DEG C because of released cold quantity, the rise of its temperature, i.e. current indoor environment temperature has reached setting First object temperature.Although the temperature of energy-accumulating medium 19 is still below current indoor environment temperature (25 DEG C), i.e., in energy storage device 10 Portion still stores cold, still, and control module will control energy storage device 10 no longer to room air released cold quantity.

In addition, if during machine 20 and outdoor unit 21 are out of service indoors, the independent released cold quantity of energy storage device 10 drop Low indoor temperature, and when temperature is reduced to 25.5 DEG C indoors, the temperature of energy-accumulating medium 19 is also increased to 25.5 DEG C, i.e. energy storage The temperature of medium 19 is current identical with indoor environment temperature, then shows not store cold inside energy storage device 10 now, now, control Molding block can control energy storage radiator fan 12 and shut down, energy storage device 10 no longer carried out with room air it is cold and hot exchange, by room Interior environment temperature is continued to be reduced to the work of first object temperature (25 DEG C) by 25.5 DEG C, is continued by indoor set 20 and outdoor unit 21 The cooling cycle system of composition is completed, and controls indoor fan 11 to continue to run with, and indoor heat exchanger 5 continues refrigeration work.

In one embodiment of the invention, as shown in figure 5, when the present mode of operation of air-conditioning system is heating mode When, if indoor environment temperature is less than the temperature difference between the second target temperature and the second target temperature and indoor environment temperature Value is more than the second fiducial temperature, and the refrigerant that control module then controls compressor 1 to discharge is flowed through after indoor heat exchanger 5 by restriction Part 7 is throttled, and then flows through and compressor 1 is returned to after outdoor heat exchanger 3, so that air-conditioning system is heated, and judges energy storage Whether the temperature of medium 19 is more than indoor environment temperature, wherein, if the temperature of energy-accumulating medium 19 is more than indoor environment temperature, control Molding block then controls energy storage device 10 to discharge heat to carry out auxiliary heating, if the temperature of energy-accumulating medium 19 is less than or equal to interior Environment temperature, control module control energy storage device 10 stops heat exchange work.Wherein, the second target temperature and the second fiducial temperature are equal It can be demarcated according to actual conditions.

Furthermore, in another embodiment of the present invention, as shown in figure 5, when indoor environment temperature is less than second When temperature gap between target temperature and the second target temperature and indoor environment temperature is more than or equal to the second fiducial temperature, control Molding block is additionally operable to judge whether the temperature of energy-accumulating medium 19 is more than the second target temperature, wherein, if the temperature of energy-accumulating medium 19 Degree is more than the second target temperature, and control module then controls indoor heat exchanger 5 to stop heat exchange work, and controls energy storage device 10 to discharge Heat is to be heated.

If the temperature of energy-accumulating medium 19 is less than or equal to the second target temperature, control module then controls what compressor 1 was discharged Refrigerant is flowed through after indoor heat exchanger 5 and throttled by throttle part 7, then flows through and compressor 1 is returned to after outdoor heat exchanger 3, So that air-conditioning system is heated, and judges whether the temperature of energy-accumulating medium 19 is more than indoor environment temperature, and it is situated between in energy storage Control energy storage device 10 discharges heat to carry out auxiliary heating when the temperature of matter 19 is more than indoor environment temperature.

For the ease of the description of this invention, using the second target temperature as 20 DEG C, the second fiducial temperature be 1.5 DEG C exemplified by enter Row explanation.Wherein, when the present mode of operation of air-conditioning system is heating mode, if detection module is sensed by indoor temperature Device 16 detects indoor environment temperature for 9 DEG C, i.e. the temperature gap between current indoor environment temperature and the second target temperature For 11 DEG C, more than the indoor set 20 and outdoor unit 21 of the second fiducial temperature (1.5 DEG C), the then controllable air-conditioning system of control module Lead to and run for a heating, i.e., air-conditioning system is run by heating mode.

Now, the refrigerant that control module can control in air-conditioning system pipeline is compressed after discharge by compressor 1, through four-way valve 4 Indoor heat exchanger 5 is flowed into the second triple valve 15.Control indoor fan 11 to run simultaneously, indoor heat exchange is taken away by indoor air Heat in the refrigerant of device 5.Then, the refrigerant flows into the first triple valve 14 through indoor heat exchanger lateral line 6, then by throttle part 7 and auxiliary throttle part 8 throttling after enter outdoor heat exchanger lateral line 9, with enter outdoor heat exchanger 3.Control module is controllable Outdoor fan 13 processed is run, the refrigerant in outdoor heat exchanger 3 and outdoor air carry out it is cold exchanges, the generation of air-conditioning system outside Cold, outdoor is discharged into by outdoor fan 13.The refrigerant enters compressor 1 after the outflow of outdoor heat exchanger 3 by four-way valve 4, Then discharged after being compressed again by compressor 1, complete a circulation.

In the cycle, indoor energy storage lateral line 18 is closed, and refrigerant now realizes system not through energy storage device 10 Circulation.If detection module detects that current indoor environment temperature is 9 DEG C by indoor temperature transmitter 16, pass through energy-accumulating medium temperature The Current Temperatures that sensor 17 detects energy-accumulating medium 19 are 80 DEG C, then now control module can determine whether the current of energy-accumulating medium 19 (80 DEG C) of temperature is higher than current indoor environment temperature (9 DEG C), and current indoor environment temperature (9 DEG C) is still below the second target temperature (20 DEG C), control module can control energy storage radiator fan 12 and operate, and energy storage device 10 discharges the heat of storage inside, with further Improve indoor environment temperature.

Furthermore, after air-conditioning system runs a period of time in a heating mode, if indoor environment temperature is raised To 18.5 DEG C, the temperature of energy-accumulating medium 19 is reduced to 32 DEG C by 80 DEG C, i.e. indoor environment temperature now is set close to user Second target temperature (20 DEG C), while the temperature of energy-accumulating medium 19 is higher than the second target temperature.Then now, control module can control Air-conditioning system is preferentially carried out in heat release, i.e. control module control room using the heat of the storage inside of energy-accumulating medium 19 to room air Machine 20 is parked in heating operation, and controls energy storage radiator fan 12 to keep operating release heat, can by current indoor environment temperature by 18.5 DEG C of work for continuing to be increased to the second target temperature (20 DEG C), are individually completed by energy storage device 10, until indoor environment temperature When degree reaches 20 DEG C, control air-conditioning system is shut down.It should be noted that having reached the second mesh of setting in current indoor environment temperature When marking temperature, even if the temperature (such as, being 28 DEG C) of energy-accumulating medium 19 remains above 20 DEG C of current indoor environment temperature, i.e. energy storage and filled Put and heat is still stored inside 10, control module will not also control energy storage device 10 to continue to discharge heat to room air.

In addition, after air-conditioning system runs a period of time in a heating mode, if indoor environment temperature is increased to 19.5 DEG C, the energy-accumulating medium 19 in energy storage device 10 is because of release heat, and the temperature of energy-accumulating medium 19 is reduced to 19.5 DEG C by 32 DEG C, that is, stored up No longer be stored with heat in energy device 10, and indoor environment temperature is continued to be increased to 20 DEG C of work by 19.5 DEG C, will be turned by interior The heating operation of machine 20.Now, control module can control indoor set 20 and outdoor unit 21 continues UNICOM and carried out for a heating Work, and control indoor fan 11 to operate, to indoor radiating, to improve indoor temperature, until indoor environment temperature reaches setting 20 DEG C of the second target temperature.

To sum up, air-conditioning system according to embodiments of the present invention, indoor environment temperature, energy storage device are detected by detection module In energy-accumulating medium temperature, and the present mode of operation of air-conditioning system is obtained by control module, and according to air-conditioning system Present mode of operation, the refrigerant stream in indoor environment temperature and energy storage device in the temperature control air-conditioning system of energy-accumulating medium Flowing mode.Thus, the air-conditioning system can be by controlling the refrigerant type of flow in air-conditioning system, to realize that small number air-conditioning is defeated Go out big refrigerating capacity or heating capacity, so as to improve the comfortableness that air-conditioning system is used, and reduce the consumption of the energy.

Fig. 6 is the flow chart of the control method of air-conditioning system according to an embodiment of the invention.In the implementation of the present invention In example, as shown in figure 1, air-conditioning system may include compressor, outdoor heat exchanger, throttle part, indoor heat exchanger and energy storage device, Energy storage device is disposed in the interior side, and is arranged in parallel with indoor heat exchanger, and energy storage device includes energy-accumulating medium, and energy-accumulating medium is used for Store heat or cold.Wherein, the material of energy-accumulating medium can be demarcated according to actual conditions.

As shown in fig. 6, the control method of the air-conditioning system of the embodiment of the present invention comprises the following steps：

S1, detection indoor environment temperature, the temperature of energy-accumulating medium in energy storage device.

In an embodiment of the present invention, as shown in figure 1, detection module can pass through indoor temperature transmitter and energy-accumulating medium temperature Degree sensor detects the temperature of the energy-accumulating medium in indoor environment temperature, energy storage device respectively.

S2, obtains the present mode of operation of air-conditioning system, and according to the present mode of operation of air-conditioning system, indoor environment temperature The refrigerant type of flow in degree and energy storage device in the temperature control air-conditioning system of energy-accumulating medium.It should be noted that of the invention Air-conditioning system may include plurality of operating modes, for example, energy storage pattern, refrigeration mode, heating mode and air supply pattern etc..

It should be noted that as shown in figure 1, when air-conditioning system is with energy storage mode operation, can control indoor set and be in pass Closed state, outdoor unit and energy storage device can UNICOM be a coolant circulating system, the refrigerating capacity now produced or heating capacity, will deposit Storage is in energy storage device.Air-conditioning system when refrigeration mode or heating mode are run, indoor set and outdoor unit can UNICOM be one The coolant circulating system for freezing or heating, while energy storage device is also to the cold or heat of indoor release storage inside.

Furthermore, in one embodiment of the invention, as shown in Fig. 2 when the present mode of operation of air-conditioning system During for energy storage pattern, if indoor environment temperature is more than the first preset temperature, the refrigerant of control compressor discharge flows through outdoor Throttled after heat exchanger by throttle part, then flow through and compressor is returned to after energy storage device, so that energy-accumulating medium is stored up Cold is deposited, enters time of energy storage pattern until the temperature of energy-accumulating medium is less than the first temperature threshold or air-conditioning system and reaches the One preset time.Wherein, the first preset temperature, the first temperature threshold and the first preset time can enter rower according to actual conditions Fixed, for example, the first preset temperature can be 26 DEG C, the first temperature threshold can be 10 DEG C, and the first preset time can be 2h (hour).

Specifically, when air-conditioning system present mode of operation be energy storage pattern, and indoor environment temperature be more than first preset During temperature, the air-conditioning system can control indoor fan be closed so that the refrigerant in indoor heat exchanger not with Interior Space Gas carries out cold exchange.However, the refrigerant of this space-time adjusting system only carried out with the energy-accumulating medium in energy storage device it is cold exchange, simultaneously Control energy storage radiator fan is also at closed mode, then the cold that air-conditioning system indoor is produced by the phase transformation of energy-accumulating medium or Person's temperature change is stored in energy storage device, so as to reach the purpose being stored in cold in energy storage device.

For the ease of the description of this invention, using the first preset temperature as 26 DEG C, the first temperature threshold is 10 DEG C, and first is pre- If the time be 2h exemplified by illustrate.Wherein, when air-conditioning system is with energy storage mode operation, if passing through indoor temperature transmitter Indoor environment temperature is detected to preset higher than first for 28 DEG C (such as, indoor environment temperature in summer), i.e. indoor environment temperature Temperature, then air-conditioning system, which can control refrigerant and be exported through compressor, enters four-way valve, and flows into outdoor heat exchanger by four-way valve, together When control outdoor fan operation, the heat of refrigerant in outdoor heat exchanger is taken away by outdoor air, i.e. refrigerant is in outdoor heat exchanger Middle carry out heat exchange.

Then, the refrigerant flows into check valve through outdoor heat exchanger lateral line, and the rear throttle part that flows into is throttled, then after pass through Cross the first triple valve and indoor energy storage lateral line enters energy storage device, now, air-conditioning system can control energy storage radiator fan and be in Closed mode, the refrigerant carry cold by energy-accumulating medium by temperature change or phase change memory in energy storage device.This is cold Matchmaker enters compressor after energy storage device outflow by the second triple valve and four-way valve, is discharged after being then compressed by the compressor again, Complete a circulation.

In the cycle, indoor heat exchanger lateral line is closed, and indoor heat exchanger and indoor fan do not work, equivalent to The indoor set of air conditioner does not work, only energy storage device storage cold.Now, the cold that air-conditioning system indoor is produced, passes through The phase transformation of energy-accumulating medium or temperature change are stored in energy storage device, energy storage device storage cold, until the temperature of energy-accumulating medium Degree is less than 10 DEG C, or operation duration of the air-conditioning system in this state reaches 2h.

In one embodiment of the invention, as shown in figure 3, when the present mode of operation of air-conditioning system is energy storage pattern When, if indoor environment temperature is less than or equal to the second preset temperature, the refrigerant of control compressor discharge is flowed through after energy storage device Throttled by throttle part, then flow through and compressor is returned to after outdoor heat exchanger, so that energy-accumulating medium carries out storage heat, Until the time that the temperature of energy-accumulating medium is more than second temperature threshold value or air-conditioning system into energy storage pattern reaches that second presets Time, wherein, second temperature threshold value is more than the first temperature threshold, and the second preset temperature is less than the first preset temperature, second temperature Threshold value, the second preset temperature and the second preset time can be demarcated according to actual conditions.

Specifically, when air-conditioning system present mode of operation be energy storage pattern, and indoor environment temperature be less than or equal to second During preset temperature, the air-conditioning system can control indoor fan be closed so that the refrigerant in indoor heat exchanger not with room Interior air carries out heat exchange.However, energy-accumulating medium of the refrigerant of this space-time adjusting system only and in energy storage device carries out heat exchange, Energy storage radiator fan is controlled to be also at closed mode simultaneously, then the phase that the heat that air-conditioning system indoor is produced passes through energy-accumulating medium Become or temperature change is stored in energy storage device, so as to reach the purpose being stored in heat in energy storage device.

For the ease of the description of this invention, using the second preset temperature as 18 DEG C, second temperature threshold value is 70 DEG C, and second is pre- If the time be 2.5h exemplified by illustrate.Wherein, when air-conditioning system is with energy storage mode operation, if sensed by indoor temperature Device detects indoor environment temperature and is less than the second preset temperature for 8 DEG C, i.e. indoor environment temperature, then air-conditioning system can control refrigerant Enter four-way valve through compressor outlet, and energy storage device is flowed into by the second triple valve.Energy storage radiator fan is controlled not transport simultaneously OK, the heat that the refrigerant is carried, by temperature change or phase transformation, is stored in energy storage device by energy-accumulating medium.

Then, the refrigerant flows out from energy storage device, by indoor energy storage lateral line flow into the first triple valve, then after flow into Throttle part and auxiliary throttle part are throttled, and then flow into outdoor heat exchanger by outdoor heat exchanger pipeline.Air-conditioning system System control outdoor fan operating, discharges the cold of refrigerant carrying, the refrigerant enters after outdoor heat exchanger comes out, then through four-way valve Enter compressor, discharged after being then compressed by the compressor again, complete a circulation.

In the cycle, indoor heat exchanger lateral line is closed, and indoor heat exchanger and indoor fan do not work, equivalent to The indoor set of air conditioner does not work, only energy storage device storage heat.Now, the heat that air-conditioning system indoor is produced, passes through The phase transformation of energy-accumulating medium or temperature change are stored in energy storage device, energy storage device storing heat, until the temperature of energy-accumulating medium Degree is higher than 70 DEG C, or operation duration of the air-conditioning system in this state reaches 2.5h.

In one embodiment of the invention, as shown in figure 4, when the present mode of operation of air-conditioning system is refrigeration mode When, if indoor environment temperature is more than the temperature difference between first object temperature and indoor environment temperature and first object temperature Value is more than the first fiducial temperature, then controls the refrigerant of compressor discharge to flow through after outdoor heat exchanger and saved by throttle part Stream, then flows through and compressor is returned to after indoor heat exchanger, so that air-conditioning system is freezed, and judges that the temperature of energy-accumulating medium is It is no to be less than indoor environment temperature, wherein, if the temperature of energy-accumulating medium is less than indoor environment temperature, control energy storage device release Cold is to carry out auxiliary cooling；If the temperature of energy-accumulating medium is more than or equal to indoor environment temperature, control energy storage device stops Exchange heat work.Wherein, first object temperature and the first fiducial temperature can be demarcated according to actual conditions.

Furthermore, in another embodiment of the present invention, as shown in figure 4, when indoor environment temperature is more than first When temperature gap between target temperature and indoor environment temperature and first object temperature is less than or equal to the first fiducial temperature, also Judge whether the temperature of energy-accumulating medium is less than first object temperature, wherein, if the temperature of energy-accumulating medium is less than first object temperature Degree, then control indoor heat exchanger to stop heat exchange work, and control energy storage device released cold quantity to be freezed.

If the temperature of energy-accumulating medium is more than or equal to first object temperature, the refrigerant of control compressor discharge flows through outdoor Throttled after heat exchanger by throttle part, then flow through and compressor is returned to after indoor heat exchanger, so that air-conditioning system is carried out Refrigeration, and judge whether the temperature of energy-accumulating medium is less than indoor environment temperature, and it is less than indoor ring in the temperature of energy-accumulating medium Energy storage device released cold quantity is controlled to carry out auxiliary cooling during the temperature of border.

For the ease of the description of this invention, using first object temperature as 25 DEG C, the first fiducial temperature is progress exemplified by 1 DEG C Explanation.Wherein, when air-conditioning system is run in a chiller mode, if detecting indoor environment temperature by indoor temperature transmitter For 29 DEG C, i.e. the temperature gap between current indoor environment temperature and first object temperature is 4 DEG C, more than the first default temperature Poor (1 DEG C), then air-conditioning system can control the indoor set of air-conditioning system and outdoor unit UNICOM is a coolant circulating system, i.e. air-conditioning System is run by refrigeration mode.

Now, the air-conditioning system can control the refrigerant in air-conditioning system pipeline, after compressor compresses are discharged, through four-way valve Flow into outdoor heat exchanger.Outdoor fan operation is controlled simultaneously, and the heat of refrigerant in outdoor heat exchanger is taken away by outdoor air.With Afterwards, the refrigerant flows into throttle part through outdoor heat exchanger lateral line and check valve and throttled, then by the first triple valve with Indoor heat exchanger lateral line gets in heat exchanger.Control module control indoor fan operation, refrigerant in indoor heat exchanger with Room air carries out cold exchange, and the cold that air-conditioning system indoor is produced is discharged into indoor by indoor fan.

Then, the refrigerant through the second triple valve and four-way valve enters compressor after indoor heat exchanger outflow, then again by Discharged after compressor compresses, complete a circulation.

In the cycle, indoor energy storage lateral line is closed, and refrigerant now realizes system circulation not through energy storage device. If the Current Temperatures that now air-conditioning system detects energy-accumulating medium by energy-accumulating medium temperature sensor are 2 DEG C, less than current Indoor environment temperature (29 DEG C), and current indoor environment temperature remains above first object temperature (25 DEG C), then can control energy storage Radiator fan is operated, and energy storage device 10 discharges the cold of storage inside, further to reduce indoor environment temperature.

Furthermore, after air-conditioning system runs a period of time in cooling mode, the energy-accumulating medium in energy storage device Because of released cold quantity, the temperature of energy-accumulating medium is caused to rise to 23 DEG C by 2 DEG C, indoor environment temperature is because of indoor mechanism cold and energy storage Device discharges the cold of internal reservoir, indoor environment temperature is reduced to 26 DEG C.

Now, indoor environment temperature and the difference of first object temperature are equal to the first fiducial temperature (1 DEG C), i.e. indoor environment Temperature is close to first object temperature.Now, the air-conditioning system can preferentially utilize the cold refrigeration inside energy storage device, i.e. control Indoor set and outdoor unit are out of service, and control energy storage radiator fan to remain in operation, by the cold of the independent storage inside of energy storage device Amount reduction room temperature.Energy storage radiator fan is run after a period of time again, and indoor temperature is reduced to 25 DEG C, and energy-accumulating medium is cold because discharging Amount, its temperature rise is 24 DEG C, i.e. current indoor environment temperature has reached the first object temperature of setting.Although energy-accumulating medium Temperature be still below current indoor environment temperature (25 DEG C), i.e., cold is still stored inside energy storage device, still, air-conditioning system will Energy storage device is controlled no longer to room air released cold quantity.

In addition, if during machine and outdoor unit are out of service indoors, the independent released cold quantity reduction of energy storage device is indoor Temperature, and when temperature is reduced to 25.5 DEG C indoors, the temperature of energy-accumulating medium is also increased to 25.5 DEG C, i.e. the temperature of energy-accumulating medium Degree is current identical with indoor environment temperature, then shows not store cold inside energy storage device now, and now, air-conditioning system can control Energy storage radiator fan shuts down, energy storage device no longer with room air carry out it is cold and hot exchange, by indoor environment temperature by 25.5 DEG C continue to be reduced to the work of first object temperature (25 DEG C), continue by indoor set and outdoor unit into cooling cycle system it is complete Into, and controlling indoor fan to continue to run with, indoor heat exchanger continues refrigeration work.

In one embodiment of the invention, as shown in figure 5, when the present mode of operation of air-conditioning system is heating mode When, if indoor environment temperature is less than the temperature difference between the second target temperature and the second target temperature and indoor environment temperature Value is more than the second fiducial temperature, then controls the refrigerant of compressor discharge to flow through after indoor heat exchanger and saved by throttle part Stream, then flows through and compressor is returned to after outdoor heat exchanger, so that air-conditioning system is heated, and judges that the temperature of energy-accumulating medium is It is no to be more than indoor environment temperature, wherein, if the temperature of energy-accumulating medium is more than indoor environment temperature, control energy storage device release Heat is to carry out auxiliary heating, if the temperature of energy-accumulating medium is less than or equal to indoor environment temperature, control energy storage device stops Exchange heat work.Wherein, the second target temperature and the second fiducial temperature can be demarcated according to actual conditions.

Furthermore, in another embodiment of the present invention, as shown in figure 5, when indoor environment temperature is less than second When temperature gap between target temperature and the second target temperature and indoor environment temperature is more than or equal to the second fiducial temperature, also Judge whether the temperature of energy-accumulating medium is more than the second target temperature, wherein, if the temperature of energy-accumulating medium is more than the second target temperature Degree, then control indoor heat exchanger to stop heat exchange work, and control energy storage device to discharge heat to be heated.

If the temperature of energy-accumulating medium is less than or equal to the second target temperature, the refrigerant of control compressor discharge flows through interior Throttled after heat exchanger by throttle part, then flow through and compressor is returned to after outdoor heat exchanger, so that air-conditioning system is carried out Heat, and judge whether the temperature of energy-accumulating medium is more than indoor environment temperature, and be more than indoor ring in the temperature of energy-accumulating medium Energy storage device release heat is controlled to carry out auxiliary heating during the temperature of border.

For the ease of the description of this invention, using the second target temperature as 20 DEG C, the second fiducial temperature be 1.5 DEG C exemplified by enter Row explanation.Wherein, when air-conditioning system is run with heating mode, if detecting indoor environment temperature by indoor temperature transmitter Spend for 9 DEG C, i.e. the temperature gap between current indoor environment temperature and the second target temperature is 11 DEG C, default more than second The temperature difference (1.5 DEG C), then the air-conditioning system can control indoor set and outdoor unit UNICOM is a heating operation, i.e. air-conditioning system Run by heating mode.

Now, the refrigerant that the air-conditioning system can control in pipeline is compressed after discharge by compressor 1, through four-way valve and the two or three Port valve flows into indoor heat exchanger.Indoor fan operation is controlled simultaneously, and the heat in indoor heat exchanger refrigerant is taken away by indoor air Amount.Then, the refrigerant flows into the first triple valve through indoor heat exchanger lateral line, then by throttle part and aids in throttle part Enter outdoor heat exchanger lateral line after throttling, to enter outdoor heat exchanger.Air-conditioning system can control outdoor fan operation, and outdoor is changed Refrigerant in hot device and outdoor air carry out it is cold exchanges, the cold of air-conditioning system outside generation is discharged into room by outdoor fan Outside.The refrigerant enters compressor after outdoor heat exchanger outflow by four-way valve, is discharged after being then compressed by the compressor again, complete Into a circulation.

In the cycle, indoor energy storage lateral line is closed, and refrigerant now realizes system circulation not through energy storage device. If air-conditioning system detects that current indoor environment temperature is 9 DEG C by indoor temperature transmitter, pass through energy-accumulating medium temperature sensor The Current Temperatures for detecting energy-accumulating medium are 80 DEG C, then now can determine whether that (80 DEG C) of the Current Temperatures of energy-accumulating medium are higher than and work as cup Interior environment temperature (9 DEG C), and current indoor environment temperature (9 DEG C) is still below the second target temperature (20 DEG C), the air-conditioning system can The operating of energy storage radiator fan is controlled, energy storage device discharges the heat of storage inside, further to improve indoor environment temperature.

Furthermore, after air-conditioning system runs a period of time in a heating mode, if indoor environment temperature is raised To 18.5 DEG C, the temperature of energy-accumulating medium is reduced to 32 DEG C by 80 DEG C, i.e. indoor environment temperature now set close to user Two target temperatures (20 DEG C), while the temperature of energy-accumulating medium is higher than the second target temperature.Then now, air-conditioning system can be utilized preferentially The heat of energy-accumulating medium storage inside carries out heat release, i.e. Air-condition system control indoor set to room air and is parked in heating operation, and Control energy storage radiator fan to keep operating release heat, current indoor environment temperature can be continued to be increased to second by (18.5 DEG C) 20 DEG C of target temperature ()) work, individually completed by energy storage device, when indoor environment temperature reaches 20 DEG C, control air-conditioning System-down.It should be noted that when current indoor environment temperature has reached the second target temperature of setting, even if energy-accumulating medium Temperature (such as, being 28 DEG C) remain above 20 DEG C of current indoor environment temperature, i.e., heat, air-conditioning are still stored inside energy storage device System will not also control energy storage device to continue to discharge heat to room air.

In addition, after air-conditioning system runs a period of time in a heating mode, if indoor environment temperature is increased to 19.5 DEG C, the energy-accumulating medium in energy storage device is because of release heat, and the temperature of energy-accumulating medium is reduced to 19.5 DEG C, i.e. energy storage device by 32 DEG C Inside no longer be stored with heat, and indoor environment temperature is continued to be increased to 20 DEG C of work by 19.5 DEG C, will turn to heat fortune by indoor set OK, now, air-conditioning system can control indoor set and outdoor unit continues UNICOM and is operated for a heating, and in control room Fan running, to indoor radiating, to improve indoor temperature, until indoor environment temperature reaches the second target temperature 20 of setting ℃。

To sum up, the control method of air-conditioning system according to embodiments of the present invention, detects indoor environment temperature, energy storage dress first The temperature of energy-accumulating medium in putting, then obtains the present mode of operation of air-conditioning system, and according to the current operation of air-conditioning system The refrigerant type of flow in pattern, indoor environment temperature and energy storage device in the temperature control air-conditioning system of energy-accumulating medium.By This, this method can by controlling the refrigerant type of flow in air-conditioning system, come realize small number air-conditioning export big refrigerating capacity or Heating capacity, so as to improve the comfortableness that air-conditioning system is used, and reduces the consumption of the energy.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area Art personnel can be tied the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification Close and combine.

In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three It is individual etc., unless otherwise specifically defined.

Any process described otherwise above or method description are construed as in flow chart or herein, represent to include Module, fragment or the portion of the code of one or more executable instructions for the step of realizing custom logic function or process Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not be by shown or discussion suitable Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention Embodiment person of ordinary skill in the field understood.

Represent in flow charts or logic and/or step described otherwise above herein, for example, being considered use In the order list for the executable instruction for realizing logic function, it may be embodied in any computer-readable medium, for Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass Defeated program is for instruction execution system, device or equipment or the dress for combining these instruction execution systems, device or equipment and using Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wirings Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage (ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits Reservoir (CDROM).In addition, can even is that can be in the paper of printing described program thereon or other are suitable for computer-readable medium Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media His suitable method is handled electronically to obtain described program, is then stored in computer storage.

It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned In embodiment, the software that multiple steps or method can in memory and by suitable instruction execution system be performed with storage Or firmware is realized.Such as, if realized with hardware with another embodiment, following skill well known in the art can be used Any one of art or their combination are realized：With the logic gates for realizing logic function to data-signal from Scattered logic circuit, the application specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene can be compiled Journey gate array (FPGA) etc..

Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method is carried Rapid to can be by program to instruct the hardware of correlation to complete, described program can be stored in a kind of computer-readable storage medium In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.

In addition, each functional unit in each embodiment of the invention can be integrated in a processing module, can also That unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated mould Block can both be realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.The integrated module is such as Fruit is realized using in the form of software function module and as independent production marketing or in use, can also be stored in a computer In read/write memory medium.

Storage medium mentioned above can be read-only storage, disk or CD etc..Although having been shown and retouching above Embodiments of the invention are stated, it is to be understood that above-described embodiment is exemplary, it is impossible to be interpreted as the limit to the present invention System, one of ordinary skill in the art can be changed to above-described embodiment, change, replace and become within the scope of the invention Type.

In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or Position relationship, is for only for ease of the description present invention and simplifies description, rather than indicate or imply that the device or element of meaning must There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.

In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc. Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects Connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be in two elements The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings Condition understands the concrete meaning of above-mentioned term in the present invention.

In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature It is that the first and second features are directly contacted, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.

Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changed, replacing and modification.

Claims

1. a kind of air-conditioning system, it is characterised in that including：

Compressor, outdoor heat exchanger, throttle part and indoor heat exchanger；

Energy storage device, the energy storage device is disposed in the interior side, and is arranged in parallel with the indoor heat exchanger, the energy storage device Including energy-accumulating medium, the energy-accumulating medium is used to store heat or cold；

Detection module, the detection module is used for the temperature for detecting indoor environment temperature, energy-accumulating medium in the energy storage device；

Control module, the control module is used for the present mode of operation for obtaining the air-conditioning system, and according to the air-conditioning system Air-conditioning described in the temperature control of energy-accumulating medium in the present mode of operation of system, the indoor environment temperature and the energy storage device The refrigerant type of flow in system.

2. air-conditioning system according to claim 1, it is characterised in that when the present mode of operation of the air-conditioning system is storage During energy pattern, wherein,

If the indoor environment temperature is more than the first preset temperature, the control module then controls the cold of the compressor discharge Matchmaker flows through after the outdoor heat exchanger and throttled by the throttle part, then flow through returned to after the energy storage device it is described Compressor so that the energy-accumulating medium carry out storage cold, until the energy-accumulating medium temperature be less than the first temperature threshold or The time that air-conditioning system described in person enters energy storage pattern reaches the first preset time；

If the indoor environment temperature is less than or equal to the second preset temperature, the control module then controls the compressor to discharge Refrigerant flow through after the energy storage device and to be throttled by the throttle part, returned to after then flowing through the outdoor heat exchanger The compressor, so that the energy-accumulating medium carries out storage heat, until the temperature of the energy-accumulating medium is more than second temperature threshold The time that value or the air-conditioning system enter energy storage pattern reaches the second preset time, wherein, the second temperature threshold value is big In first temperature threshold, second preset temperature is less than first preset temperature.

3. air-conditioning system according to claim 1, it is characterised in that when the present mode of operation of the air-conditioning system is system During chill formula, if the indoor environment temperature is more than first object temperature and the indoor environment temperature and first mesh Mark the temperature gap between temperature and be more than the first fiducial temperature, the control module then controls the refrigerant stream of the compressor discharge Throttled after the outdoor heat exchanger by the throttle part, then flow through and the pressure is returned to after the indoor heat exchanger Contracting machine, so that the air-conditioning system is freezed, and judges whether the temperature of the energy-accumulating medium is less than the indoor environment temperature Degree, wherein,

If the temperature of the energy-accumulating medium is less than the indoor environment temperature, the control module then controls the energy storage device Released cold quantity is to carry out auxiliary cooling；

If the temperature of the energy-accumulating medium is more than or equal to the indoor environment temperature, the control module then controls the energy storage Device stops heat exchange work.

4. air-conditioning system according to claim 3, it is characterised in that when the indoor environment temperature is more than first object temperature Degree and when temperature gap between the indoor environment temperature and the first object temperature is less than or equal to the first fiducial temperature, The control module is additionally operable to judge whether the temperature of the energy-accumulating medium is less than the first object temperature, wherein,

If the temperature of the energy-accumulating medium is less than the first object temperature, the control module then controls the indoor heat exchange Device stops heat exchange work, and controls the energy storage device released cold quantity to be freezed；

If the temperature of the energy-accumulating medium is more than or equal to the first object temperature, the control module then controls the compression The refrigerant of machine discharge is flowed through after the outdoor heat exchanger to be throttled by the throttle part, then flows through the indoor heat exchange The compressor is returned to after device, so that the air-conditioning system is freezed, and judges whether the temperature of the energy-accumulating medium is less than The indoor environment temperature, and control the energy storage to fill when the temperature of the energy-accumulating medium is less than the indoor environment temperature Released cold quantity is put to carry out auxiliary cooling.

5. air-conditioning system according to claim 1, it is characterised in that when the present mode of operation of the air-conditioning system is system During heat pattern, if the indoor environment temperature is less than the second target temperature and second target temperature and the indoor ring Temperature gap between the temperature of border is more than the second fiducial temperature, and the control module then controls the refrigerant stream of the compressor discharge Throttled after the indoor heat exchanger by the throttle part, then flow through and the pressure is returned to after the outdoor heat exchanger Contracting machine, so that the air-conditioning system is heated, and judges whether the temperature of the energy-accumulating medium is more than the indoor environment temperature Degree, wherein,

If the temperature of the energy-accumulating medium is more than the indoor environment temperature, the control module then controls the energy storage device Heat is discharged to carry out auxiliary heating；

If the temperature of the energy-accumulating medium is less than or equal to the indoor environment temperature, the control module controls the energy storage dress Put stopping heat exchange work.

6. air-conditioning system according to claim 5, it is characterised in that when the indoor environment temperature is less than the second target temperature Degree and when temperature gap between second target temperature and the indoor environment temperature is more than or equal to the second fiducial temperature, The control module is additionally operable to judge whether the temperature of the energy-accumulating medium is more than second target temperature, wherein,

If the temperature of the energy-accumulating medium is more than second target temperature, the control module then controls the indoor heat exchange Device stops heat exchange work, and controls the energy storage device release heat to be heated；

If the temperature of the energy-accumulating medium is less than or equal to second target temperature, the control module then controls the compression The refrigerant of machine discharge is flowed through after the indoor heat exchanger to be throttled by the throttle part, then flows through the outdoor heat exchange The compressor is returned to after device, so that the air-conditioning system is heated, and judges whether the temperature of the energy-accumulating medium is more than The indoor environment temperature, and control the energy storage to fill when the temperature of the energy-accumulating medium is more than the indoor environment temperature Release heat is put to carry out auxiliary heating.

7. a kind of control method of air-conditioning system, it is characterised in that the air-conditioning system includes compressor, outdoor heat exchanger, section Stream unit, indoor heat exchanger and energy storage device, the energy storage device are disposed in the interior side, and in parallel with the indoor heat exchanger set Put, the energy storage device includes energy-accumulating medium, the energy-accumulating medium is used to store heat or cold, the control method include with Lower step：

Detect the temperature of indoor environment temperature, energy-accumulating medium in the energy storage device；

The present mode of operation of the air-conditioning system is obtained, and according to the present mode of operation of the air-conditioning system, the interior The refrigerant type of flow in environment temperature and the energy storage device in air-conditioning system described in the temperature control of energy-accumulating medium.

8. the control method of air-conditioning system according to claim 7, it is characterised in that when the current fortune of the air-conditioning system When row mode is energy storage pattern, wherein,

If the indoor environment temperature is more than the first preset temperature, the refrigerant of the compressor discharge is controlled to flow through the room Throttled after external heat exchanger by the throttle part, then flow through and the compressor is returned to after the energy storage device, so that The energy-accumulating medium carries out storage cold, until the temperature of the energy-accumulating medium is less than the first temperature threshold or the air-conditioning system The time that system enters energy storage pattern reaches the first preset time；

If the indoor environment temperature is less than or equal to the second preset temperature, the refrigerant of the compressor discharge is controlled to flow through institute State after energy storage device and to be throttled by the throttle part, then flow through and the compressor is returned to after the outdoor heat exchanger, So that the energy-accumulating medium carries out storage heat, until the temperature of the energy-accumulating medium is more than second temperature threshold value or the sky The time that adjusting system enters energy storage pattern reaches the second preset time, wherein, the second temperature threshold value is more than the described first temperature Threshold value is spent, second preset temperature is less than first preset temperature.

9. the control method of air-conditioning system according to claim 7, it is characterised in that when the current fortune of the air-conditioning system When row mode is refrigeration mode, if the indoor environment temperature be more than first object temperature and the indoor environment temperature with Temperature gap between the first object temperature is more than the first fiducial temperature, then controls the refrigerant of the compressor discharge to flow through Throttled after the outdoor heat exchanger by the throttle part, then flow through and the compression is returned to after the indoor heat exchanger Machine, so that the air-conditioning system is freezed, and judges whether the temperature of the energy-accumulating medium is less than the indoor environment temperature, Wherein,

If the temperature of the energy-accumulating medium is less than the indoor environment temperature, the energy storage device released cold quantity is controlled to enter Row auxiliary cooling；

If the temperature of the energy-accumulating medium is more than or equal to the indoor environment temperature, the energy storage device is controlled to stop heat exchange Work.

10. the control method of air-conditioning system according to claim 9, it is characterised in that when the indoor environment temperature is big Temperature gap between first object temperature and the indoor environment temperature and the first object temperature is less than or equal to first During fiducial temperature, also judge whether the temperature of the energy-accumulating medium is less than the first object temperature, wherein,

If the temperature of the energy-accumulating medium is less than the first object temperature, the indoor heat exchanger is controlled to stop heat exchange work Make, and control the energy storage device released cold quantity to be freezed；

If the temperature of the energy-accumulating medium is more than or equal to the first object temperature, the refrigerant of the compressor discharge is controlled Flow through after the outdoor heat exchanger and to be throttled by the throttle part, then flow through returned to after the indoor heat exchanger it is described Compressor, so that the air-conditioning system is freezed, and judges whether the temperature of the energy-accumulating medium is less than the indoor environment Temperature, and the energy-accumulating medium temperature be less than the indoor environment temperature when control the energy storage device released cold quantity with Carry out auxiliary cooling.

11. the control method of air-conditioning system according to claim 7, it is characterised in that current when the air-conditioning system When operational mode is heating mode, if the indoor environment temperature is less than the second target temperature and second target temperature Temperature gap between the indoor environment temperature is more than the second fiducial temperature, then controls the refrigerant stream of the compressor discharge Throttled after the indoor heat exchanger by the throttle part, then flow through and the pressure is returned to after the outdoor heat exchanger Contracting machine, so that the air-conditioning system is heated, and judges whether the temperature of the energy-accumulating medium is more than the indoor environment temperature Degree, wherein,

If the temperature of the energy-accumulating medium is more than the indoor environment temperature, the energy storage device release heat is controlled to enter Row auxiliary heating；

If the temperature of the energy-accumulating medium is less than or equal to the indoor environment temperature, the energy storage device is controlled to stop heat exchange Work.

12. the control method of air-conditioning system according to claim 11, it is characterised in that when the indoor environment temperature is small Temperature gap between the second target temperature and second target temperature and the indoor environment temperature is more than or equal to second During fiducial temperature, also judge whether the temperature of the energy-accumulating medium is more than second target temperature, wherein,

If the temperature of the energy-accumulating medium is more than second target temperature, the indoor heat exchanger is controlled to stop heat exchange work Make, and control the energy storage device release heat to be heated；

If the temperature of the energy-accumulating medium is less than or equal to second target temperature, the refrigerant of the compressor discharge is controlled Flow through after the indoor heat exchanger and to be throttled by the throttle part, then flow through returned to after the outdoor heat exchanger it is described Compressor, so that the air-conditioning system is heated, and judges whether the temperature of the energy-accumulating medium is more than the indoor environment Temperature, and control when the temperature of the energy-accumulating medium is more than the indoor environment temperature energy storage device release heat with Carry out auxiliary heating.