CN118031374A

CN118031374A - Control method of environment adjustment device, and storage medium

Info

Publication number: CN118031374A
Application number: CN202211363532.2A
Authority: CN
Inventors: 谭秋晖; 刘聪; 刘坤; 张一鹤; 高卓贤; 徐振坤; 黄招彬
Original assignee: GD Midea Air Conditioning Equipment Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2024-05-14

Abstract

The invention discloses a control method of an environment adjusting device, the environment adjusting device and a storage medium. The environment adjusting device comprises an air duct and a heat pump system, wherein the heat pump system comprises a compressor and a heat exchanger arranged in the air duct, and the method comprises the following steps: controlling the compressor to be started, and acquiring first coil temperature data of the heat exchanger and first temperature data of an air inlet side of the heat exchanger; and when the first temperature data and the first coil temperature data reach a first preset condition that the heat pump system has a refrigerant shortage risk, controlling the compressor to be closed. The invention aims to reduce the risk of damage of the refrigerant shortage of the compressor in the environment-adjusting equipment and improve the operation reliability of the heat pump system.

Description

Control method of environment adjustment device, and storage medium

Technical Field

The present invention relates to the technical field of environmental devices, and in particular, to a control method of an environmental conditioning device, and a storage medium.

Background

At present, a heat pump system is arranged in a large-scale environment adjusting device (such as an air conditioner, a fresh air dehumidifier and the like), and parameters such as temperature and humidity of air are adjusted through refrigerant circulation by the heat pump system and then are sent into an indoor environment.

However, the environment adjusting device is easily affected by the installation level of technicians in the installation process, and the situations of refrigerant evacuation, leakage of a connecting pipe bell mouth, leakage of a valve body, and the like occur, and the situations can cause the lack of refrigerant in the operation process of the heat pump system, so that the compressor is damaged due to overheating and abrasion.

Disclosure of Invention

The invention mainly aims to provide a control method of environment conditioning equipment, the environment conditioning equipment and a storage medium, and aims to reduce the risk of damage of a refrigerant shortage of a compressor in the environment conditioning equipment and improve the operation reliability of a heat pump system.

In order to achieve the above object, the present invention provides a control method of an environmental conditioning apparatus including an air duct and a heat pump system including a compressor and a heat exchanger provided in the air duct, the control method of the environmental conditioning apparatus including the steps of:

Controlling the compressor to be started, and acquiring first coil temperature data of the heat exchanger and first temperature data of an air inlet side of the heat exchanger;

and when the first temperature data and the first coil temperature data reach a first preset condition that the heat pump system has a refrigerant shortage risk, controlling the compressor to be closed.

Optionally, the environmental conditioning apparatus includes at least two heat pump systems, each heat pump system includes at least one heat exchanger disposed in the air duct, at least two heat exchangers are sequentially arranged along an airflow direction in the air duct, and the step of controlling the compressor to be turned on and acquiring first temperature data of an air inlet side of the heat exchanger and coil temperature of the heat exchanger includes:

Controlling each compressor to be started, and acquiring first coil temperature data of each heat exchanger and first temperature data of an air inlet side of each heat exchanger;

When the first temperature data and the first coil temperature data reach a first preset condition that the heat pump system has a refrigerant shortage risk, the step of controlling the compressor to be turned off comprises the following steps:

and when the first temperature data and the first coil temperature data reach a first preset condition that the heat pump system has a refrigerant shortage risk, controlling the corresponding compressor to be closed.

Optionally, the step of setting a corresponding temperature sensor on the air inlet side of each heat exchanger and acquiring the first temperature data of the air inlet side of each heat exchanger includes:

And acquiring data detected by the temperature sensor corresponding to each heat exchanger, and acquiring the first temperature data corresponding to each heat exchanger.

Optionally, defining two adjacent heat exchangers sequentially arranged along the airflow direction as a first heat exchanger and a second heat exchanger, and the step of obtaining the first temperature data of the air inlet side of the second heat exchanger includes:

And determining the first temperature data corresponding to the second heat exchanger according to the first coil temperature data corresponding to the first heat exchanger.

Optionally, defining a first compressor as a compressor in the heat pump system where the first heat exchanger is located, and determining the first temperature data corresponding to the second heat exchanger according to the first coil temperature data corresponding to the first heat exchanger includes:

determining a temperature correction value according to the air outlet quantity of the air channel, the operating frequency of the first compressor and the first coil temperature data corresponding to the first heat exchanger;

and increasing the temperature data of the first coil corresponding to the first heat exchanger according to the temperature correction value to obtain the first temperature data corresponding to the second heat exchanger.

Optionally, the temperature correction value is inversely related to the air output, the temperature correction value is positively related to the operating frequency, and the temperature correction value is inversely related to the first coil temperature data.

Optionally, the first preset condition includes a first sub-condition or a second sub-condition, and when the first temperature data and the first coil temperature data reach the first preset condition that the heat pump system has a refrigerant deficiency risk, the step of controlling the compressor to be turned off includes:

when the first temperature data and the first coil temperature data reach the first sub-condition, controlling the compressor to be closed; or alternatively, the first and second heat exchangers may be,

When the first temperature data and the first coil temperature data reach the second sub-condition, controlling the compressor to be closed;

The first sub-condition comprises that the temperature difference value between the coil pipe of the heat exchanger and the corresponding air inlet side is smaller than a preset temperature difference value, the temperature difference change value between the coil pipe of the heat exchanger and the corresponding air inlet side is smaller than a preset temperature difference value, and the second sub-condition comprises that the temperature difference value between the coil pipe of the heat exchanger and the corresponding air inlet side is smaller than a preset temperature difference value, and the temperature change value of the coil pipe of the heat exchanger is larger than or equal to a preset temperature change value.

Optionally, after the step of acquiring the first coil temperature data of the heat exchanger and the first temperature data of the air intake side of the heat exchanger, the method further includes:

executing the step of controlling the compressor to be turned off when the first temperature data and the first coil temperature data reach the first sub-condition when the turn-on duration of the compressor is smaller than a first preset duration;

executing the step of controlling the compressor to be turned off when the first temperature data and the first coil temperature data reach the second sub-condition when the turn-on time of the compressor is longer than or equal to a second preset time;

Wherein the second preset time period is longer than or equal to the first preset time period.

Optionally, before the step of controlling the compressor to be turned off, when the first temperature data and the first coil temperature data reach the first sub-condition, the method further includes:

when the starting time of the compressor is smaller than a third preset time, determining a first preset temperature difference change value as the preset temperature difference change value;

When the starting time of the compressor is longer than or equal to the third preset time and shorter than the first preset time, determining a second preset temperature difference change value as the preset temperature difference change value;

Wherein the first preset temperature difference change value is smaller than the second preset temperature difference change value.

Optionally, the first coil temperature data includes at least two first sub-temperatures detected in a first period of time and at least two second sub-temperatures detected in a second period of time, a duration of the compressor being turned on in the first period of time is less than the second preset duration, and a duration of the compressor being turned on in the second period of time is greater than or equal to the second preset duration, and after the step of acquiring the first coil temperature data of the heat exchanger and the first temperature data of the air intake side of the heat exchanger, further includes:

When the starting time of the compressor is longer than or equal to a second preset time, determining the minimum temperature value of the at least two first sub-temperatures, and determining the maximum temperature value of the at least two second sub-temperatures;

and determining the temperature change value according to the difference value between the maximum temperature value and the minimum temperature value.

Optionally, after the step of controlling the compressor to be turned off when the first temperature data and the first coil temperature data reach a first preset condition that the heat pump system has a refrigerant deficiency risk, the method further includes:

Acquiring closing time of the compressor, second temperature data of an air inlet side of the heat exchanger and second coil temperature data of the heat exchanger;

and when the closing time length is greater than or equal to a fourth preset time length, and/or when the second temperature data and the second coil temperature data reach a second preset condition that the heat pump system does not have the refrigerant shortage risk, controlling the compressor to be started.

Optionally, the second preset condition includes that the number of times that the first sub-condition or the second sub-condition is satisfied in the closing process of the compressor is smaller than or equal to a preset threshold, the first sub-condition includes that a temperature difference value between a coil of the heat exchanger and a corresponding air inlet side is smaller than a preset temperature difference value, a temperature difference change value between the coil of the heat exchanger and the corresponding air inlet side is smaller than a preset temperature difference value, and the second sub-condition includes that a temperature difference value between the coil of the heat exchanger and the corresponding air inlet side is smaller than a preset temperature difference value, and a temperature change value of the coil of the heat exchanger is larger than or equal to a preset temperature change value.

In addition, in order to achieve the above object, the present application also proposes an environment adjustment device including:

An air duct;

the heat pump system comprises a compressor and a heat exchanger arranged in the air duct,

A control device, the heat pump system is connected with the control device, the control device comprises: the control program of the environment conditioning device is executed by the processor to implement the steps of the control method of the environment conditioning device according to any one of the above.

Optionally, the environment adjusting device comprises at least two heat pump systems, and the heat exchangers in the at least two heat pump systems are sequentially arranged along the air flow direction in the air duct.

In addition, in order to achieve the above object, the present application also proposes a storage medium having stored thereon a control program of an environment adjustment device, which when executed by a processor, implements the steps of the control method of the environment adjustment device as set forth in any one of the above.

According to the control method of the environment regulating device, based on the environment regulating device provided with the heat pump system for exchanging heat with air in the air duct, in the starting process of the compressor, the first coil temperature data of the heat exchanger and the first temperature data of the air inlet side of the heat exchanger are detected, when the first coil temperature data and the first temperature data meet the first preset condition that the heat pump system has a refrigerant shortage risk, the compressor is closed, the first coil temperature data can accurately reflect the heat exchange amount output by the heat exchanger in the starting process of the compressor, the first temperature data can accurately reflect the operation condition of the heat exchanger in the air duct in the starting process of the compressor, the first coil temperature data and the first temperature data can be synthesized to accurately represent the refrigerant shortage risk of the heat pump system, and when the heat pump system has a refrigerant risk, the compressor can be closed in time, the situation that the refrigerant shortage risk of the heat pump system is overheated and worn due to the refrigerant shortage operation is avoided, the risk of the compressor in the environment regulating device is reduced, and the operation reliability of the heat pump system is effectively improved.

Drawings

FIG. 1 is a schematic view of an embodiment of an environmental conditioning apparatus according to the present invention;

FIG. 2 is a schematic view of another embodiment of the environmental conditioning apparatus of the present invention;

FIG. 3 is a schematic view of an environment conditioning apparatus according to another embodiment of the present invention;

FIG. 4 is a schematic diagram of a hardware architecture involved in the operation of an embodiment of the environmental conditioning apparatus of the present invention;

FIG. 5 is a flow chart of an embodiment of a control method of an environmental conditioning apparatus according to the present invention;

FIG. 6 is a flow chart of another embodiment of a control method of the environmental conditioning apparatus of the present invention;

FIG. 7 is a flow chart of a control method of an environmental conditioning apparatus according to another embodiment of the present invention;

fig. 8 is a flow chart of a control method of an environment conditioning apparatus according to still another embodiment of the present invention.

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

The embodiment of the invention provides environment adjusting equipment. The environment adjusting device is used for adjusting the indoor environment state. In this embodiment, the environmental conditioning device is a fresh air device. In other embodiments, the environmental conditioning device may also be other types of devices for conditioning an indoor environment, such as a dehumidifier, an air conditioner, etc.

In the embodiment of the present invention, referring to fig. 1 to 3, the environment conditioning apparatus includes an air duct 01, a heat pump system including a compressor 21, a heat exchanger 22, and a throttle device 23, which are communicated through a refrigerant pipe, and a control device 1. The heat pump system is connected to the control device 1.

The heat exchanger 22 is arranged in the air duct 01 and can exchange heat with the air flowing through the air duct 01. Specifically, the environment adjusting device may further include a fan 5 in the air duct 01, and the air driven by the fan 5 enters the air duct 01 to exchange heat with the heat exchanger 22 and then is sent to the indoor environment.

In this embodiment, the air inlet of the air duct 01 is communicated with the outdoor environment, and fresh air in the outdoor environment can enter the air duct 01 to exchange heat with the heat exchanger 22 and then be sent into the air duct. In other embodiments, the air inlet of the air duct 01 may also be in communication with the indoor environment or both the indoor environment and the outdoor environment.

In the present embodiment, the throttle device 23 is an electronic expansion valve. In other embodiments, the throttle device 23 may be a throttle member such as a capillary tube or a valve element.

The number of the heat exchangers 22 in the heat pump system can be more than one, the number of the heat exchangers 22 arranged in the air duct 01 can be more than one, the heat exchange states of different heat exchangers 22 in the air duct 01 can be the same (such as evaporation states or condensation states), and the number of different heat exchangers 22 in the air duct 01 can also be different (such as that one part of the heat exchangers 22 are in the evaporation states and the other part of the heat exchangers 22 are in the condensation states).

The heat pump system may be a system having a single cooling function or a single heating function, or may be a system that allows switching between a cooling function and a heating function.

In this embodiment, the environmental conditioning apparatus may be divided into different operation modes, such as a heating mode, a cooling mode, a dehumidifying mode, a humidifying mode, an air supplying mode, and the like, according to different indoor environmental conditioning requirements. In the heating mode, a compressor 21 in the heat pump system is started, a refrigerant discharged by the compressor 21 circulates in a refrigerant pipeline and then flows back to the compressor 21, heat is released to air when the refrigerant flows through a heat exchanger 22 in the air duct 01, the air is heated, and the heated air is sent into a room. The compressor 21 in the heat pump system is started in the refrigeration mode, the refrigerant discharged by the compressor 21 flows back to the compressor 21 after circulating in the refrigerant pipeline, and the cooled refrigerant is released to the air to cool the air when flowing through the heat exchanger 22 in the air duct 01, and the cooled air is sent into a room. In the dehumidification mode, a compressor 21 in the heat pump system is started, refrigerant discharged by the compressor 21 circulates in a refrigerant pipeline and then flows back to the compressor 21, all or part of heat exchangers 22 in an air duct 01 are in an evaporation state, moisture in air flowing through the air duct 01 is condensed on the heat exchangers 22 in the evaporation state, the air humidity is reduced, the air after the humidity is reduced is sent into a room, and the air after the dehumidification can be heated and then sent into the room when the part of heat exchangers 22 are in the condensation state, so that reheat dehumidification is realized. The compressor 21 of the heat pump system may be turned off in the humidification mode and the air supply mode.

Further, in this embodiment, the environmental conditioning apparatus is a split apparatus, specifically including an indoor unit and an outdoor unit, the air duct 01 is disposed in the indoor unit, and the compressor 21 of the heat pump system is disposed in the outdoor unit. In other embodiments, the environmental conditioning device may be an integrated device, and the heat pump system may be integrally provided in the indoor environment.

Further, in an embodiment, referring to fig. 2 and 3, the environment conditioning device comprises more than one heat pump system as described above, each of which is connected to the control device 1. Each heat pump system comprises at least one heat exchanger arranged in the air duct, and at least two heat exchangers are sequentially distributed along the air flow direction in the air duct. In the running process of the environment adjusting device, more than one heat pump system can be started at the same time, and the heat exchange states of the heat exchangers 22 arranged in the air duct 01 of different heat pump systems can be the same or different based on the heat exchange requirements of the indoor environment corresponding to the current running mode.

Further, in an embodiment, referring to fig. 3, the environment adjusting apparatus includes a housing and a first heat pump system, the housing is provided with an air supply duct 01, and the first heat pump system includes: the fresh air heat exchanger structure is positioned in the air supply duct 01 and is provided with a refrigerant pipeline; the first switching device is communicated with the fresh air heat exchanger structure and is used for switching the flow direction of the refrigerant in the fresh air heat exchanger structure; under different operation modes, the refrigerant of the first heat pump system passes through the refrigerant pipeline positioned at the downstream of the air supply air duct 01 and then passes through the refrigerant pipeline positioned at the upstream of the air supply air duct 01. The air supply duct 01 refers to a channel for the environment conditioning equipment to send outdoor fresh air into the room, and the air exhaust duct 02 refers to a channel for the environment conditioning equipment to discharge indoor air to the outside. The new trend heat exchanger structure is located in the first refrigerant flow path, first heat pump system still includes: the first compressor 11, the first heat exchange module 12 and the reversing device 101, wherein the first compressor 11 is arranged in the first refrigerant flow path and is provided with a first exhaust port and a first return port; the first heat exchange module 12 is disposed in the first refrigerant flow path and is in communication with the first switching device, the first heat exchange module 12 includes a first outdoor heat exchanger 35 and a heat recovery heat exchanger 36 that are disposed in series, the heat recovery heat exchanger 36 is disposed in the exhaust air duct 02, the first outdoor heat exchanger 35 is disposed outside the housing (main housing), the first compressor 11 is mounted in the exhaust air duct 02 or is mounted outside the housing (main housing), the heat recovery heat exchanger 36 is disposed in the exhaust air duct 02, and after heat exchange occurs between the air in the exhaust air duct 02 and the heat recovery heat exchanger 36, the air is exhausted from the exhaust air duct 02, so that heat recovery can be performed on the air exhausted from the exhaust air duct 02; the reversing device 101 is connected to the first exhaust port, the first air return port, the first heat exchange module 12 and the first switching device, and the reversing device 101 is used for switching the flow direction of the refrigerant, so that the refrigerant passes through the first heat exchange module 12 and then passes through the first switching device, or so that the refrigerant passes through the first switching device and then passes through the first heat exchange module 12. In order to realize the reheating and dehumidifying functions of the environment-regulating equipment, the fresh air heat exchanger structure comprises a first fresh air heat exchanger 13 and a second fresh air heat exchanger 14 which are sequentially connected in series; the first fresh air heat exchanger 13 is located at the downstream of the air supply duct 01 relative to the second fresh air heat exchanger 14, the outflow port 34 is connected with the first fresh air heat exchanger 13, the inflow port 33 is connected with the second fresh air heat exchanger 14, and in this way, in the reheat dehumidification mode, the first fresh air heat exchanger 13 serves as an evaporator to cool air, and the second fresh air heat exchanger 14 serves as a condenser to heat air, so that reheat dehumidification of the air is realized. In order to reduce the control element in the environmental conditioning equipment, promote the stability of the environmental conditioning equipment, first switching device has first intercommunication mouth 31, second intercommunication mouth 32, inflow 33 and egress opening 34, fresh air heat exchanger structure intercommunication the egress opening 34 with the inflow opening 33, first switching device includes: a first check valve 103, a second check valve 104, a third check valve 105, and a fourth check valve 106, the first check valve 103 being connected between the first communication port 31 and the inflow port 33, the first check valve 103 being in communication in a direction from the inflow port 33 to the first communication port 31; the second check valve 104 is connected between the first communication port 31 and the outflow port 34, and the second check valve 104 is communicated in the direction from the first communication port 31 to the outflow port 34; the third check valve 105 is connected between the inflow port 33 and the second communication port 32, and the third check valve 105 is communicated in a direction from the inflow port 33 to the second communication port 32; the fourth one-way valve 106 is connected between the outflow port 34 and the second communication port 32, and the fourth one-way valve 106 is connected in the direction from the second communication port 32 to the outflow port 34, so that the first switching device is composed of one-way valves, and compared with the four-way valve or two three-way valve, the four-way valve has the advantages that no control element is needed, and the stability of the environment adjusting device is higher.

The fresh air heat exchanger structure comprises a first fresh air heat exchanger 13 and a second fresh air heat exchanger 14 which are sequentially connected in series; the first fresh air heat exchanger 13 is located at the downstream of the air supply duct 01 relative to the second fresh air heat exchanger 14, the outflow port 34 is connected with the first fresh air heat exchanger 13, the inflow port 33 is connected with the second fresh air heat exchanger 14, and in this way, in the reheat dehumidification mode, the first fresh air heat exchanger 13 serves as an evaporator to cool air, and the second fresh air heat exchanger 14 serves as a condenser to heat air, so that reheat dehumidification of the air is realized.

The first heat pump system further comprises a first throttling element 15 arranged on the first refrigerant flow path, wherein the first throttling element 15 is arranged between the first heat exchange module 12 and the first switching device. The first heat pump system further comprises a second throttling element 16, and the second throttling element 16 is arranged on a flow path connected in series between the first fresh air heat exchanger 13 and the second fresh air heat exchanger 14, so that the refrigerant flowing out of the first fresh air heat exchanger 13 can be throttled.

When the fresh air fan operates in a heating mode, the heat exchanger arranged in the air supply duct 01 condenses and releases heat. Specifically, when the fresh air fan includes the first heat pump system, the refrigerant discharged from the first compressor 11 sequentially passes through the reversing device 101, the fourth check valve 106, the first fresh air heat exchanger 13, the second throttling element 16, the second fresh air heat exchanger 14, the first check valve 103, the first throttling element 15, the heat recovery heat exchanger 36, the first outdoor heat exchanger 35 and the reversing device 101 and returns to the first compressor 11, at this time, the second throttling element 16 is fully opened, the first throttling element 15 plays a role in throttling and reducing pressure, the first fresh air heat exchanger 13 and the second fresh air heat exchanger 14 are condensed and released, and the heat recovery heat exchanger 36 and the first outdoor heat exchanger 35 are evaporated and absorbed.

Further, the environmental conditioning apparatus further includes a second heat pump system, a second refrigerant flow path is formed on the second heat pump system, the second heat pump system includes a second outdoor heat exchanger 201, a second compressor 27, a third fresh air heat exchanger 202 and a fourth fresh air heat exchanger 203, which are disposed in the second refrigerant flow path, the third fresh air heat exchanger 202 and the fourth fresh air heat exchanger 203 are disposed in the air supply duct 01, and at this time, the second outdoor heat exchanger 201 and the second compressor 27 may also be disposed in the air exhaust duct 02, so that the environmental conditioning apparatus does not need an outdoor unit at all, and saves positions.

The second heat pump system further comprises a second switching device, which is configured to switch the second outdoor heat exchanger 201 to be communicated with the third fresh air heat exchanger 202 or to be simultaneously communicated with the third fresh air heat exchanger 202 and the fourth fresh air heat exchanger 203. The second switching device comprises a fourth throttling element 24 and a fifth one-way valve 25 (the fifth one-way valve 25 can be replaced by an electromagnetic valve), and the fourth throttling element 24 is arranged on the second refrigerant flow path and is positioned between the third fresh air heat exchanger 202 and the fourth fresh air heat exchanger 203; the fifth check valve 25 is disposed in parallel with the third fresh air heat exchanger 202 and the fourth throttling element 24, and the conducting direction of the fifth check valve 25 is from the fourth fresh air heat exchanger 203 to the second outdoor heat exchanger 201.

When the fresh air fan operates in a heating mode, the heat exchanger arranged in the air supply duct 01 condenses and releases heat. When the fresh air fan comprises a second heat pump system, the refrigerant discharged by the second compressor 27 sequentially passes through the reversing device 101, the fourth fresh air heat exchanger 203, the fifth one-way valve 25, the fifth throttling element 26, the second outdoor heat exchanger 201 and the reversing device 101 and returns to the second compressor 27, at this time, the fourth throttling element 24 is closed, the fifth throttling element 26 plays a role in throttling and depressurization, the third fresh air heat exchanger 202 condenses and releases heat, the second outdoor heat exchanger 201 evaporates and absorbs heat, and the refrigerant does not pass through the fourth throttling element 24 and the third fresh air heat exchanger 202.

So set up, two sets of heat transfer systems exist two evaporators in air supply passageway, have two evaporating temperature, and the upper reaches is higher than low reaches evaporating temperature, and two-stage evaporation refrigeration has promoted the energy consumption greatly in one-level evaporation refrigeration's scheme compared. And the upstream heat exchange system can preheat or precool air first and then exchange heat through the downstream heat exchange system, so that the air outlet temperature can be effectively reduced in a refrigeration mode and the air outlet temperature can be improved in a heating mode. Of course, the heat exchange system at the upstream may cool the air, and the heat exchange system at the downstream may heat the air, thereby realizing the reheat dehumidification function.

Because the first heat pump system and the second heat pump system exist at the same time, two outdoor units are often required to be arranged for the first heat pump system and the second heat pump system, so that the two outdoor units are required to occupy two outdoor units, too many positions are required to be occupied for installation of the two outdoor units, and the workload of installation is too great, therefore, the shell comprises a main machine shell and an outdoor unit shell, the main machine shell is internally provided with the air supply duct 01 and the air exhaust duct 02, the first heat pump system also comprises a first compressor 11 and a first heat exchange module 12, the first heat exchange module 12 comprises a first outdoor heat exchanger 35 and a heat recovery heat exchanger which are arranged in series, the heat recovery heat exchanger is arranged in the air exhaust duct 02, the fourth fresh air heat exchanger 203 is arranged in the air supply duct 01, the first compressor 11, the first outdoor heat exchanger 35, the second compressor 27, the second outdoor heat exchanger 201 and the outdoor fan 37 are all arranged in the outdoor housing, so that the heat recovery heat exchanger 36 is arranged in the air exhaust duct 02, the fourth fresh air heat exchanger 203 is arranged in the air supply duct 01, the first compressor 11, the first outdoor heat exchanger 35, the second compressor 27, the second outdoor heat exchanger 201 and the outdoor fan 37 are all arranged in the outdoor housing, part of the parts of the outdoor unit is arranged in the air exhaust duct 02, the rest of the parts are arranged in the housing of the outdoor unit, the requirements of the first heat pump system and the second heat pump system can be met only by arranging one outdoor unit, the occupied positions of the outdoor unit are reduced, and the workload of the outdoor unit installation is reduced.

Further, in the present embodiment, referring to fig. 4, the environment adjusting apparatus may also include a first temperature sensor 3, and the first temperature sensor 3 is connected to the control device 1. The first temperature sensor 3 is provided on the air intake side of the heat exchanger 22 for detecting the temperature of the air intake side of the heat exchanger 22. Specifically, in this embodiment, the first temperature sensor 3 is disposed at an air inlet of the air duct 01. Further, when the number of the heat pump systems is more than one, the number of the first temperature sensors 3 may be more than one, and the air inlet of the heat exchanger 22 of each heat pump system in the air duct 01 is correspondingly provided with one first temperature sensor 3, and each first temperature sensor 3 may be used for detecting the temperature of the air inlet side of the corresponding heat exchanger 22.

Further, in the present embodiment, referring to fig. 4, the environment adjusting apparatus may also include a second temperature sensor 4, and the second temperature sensor 4 is connected to the control device 1. The second temperature sensor 4 is provided on the coil of the heat exchanger 22 for detecting the coil temperature of the heat exchanger 22.

In the embodiment of the present invention, referring to fig. 4, a control apparatus 1 of an environment adjustment device includes: a processor 1001 (e.g., CPU), a memory 1002, a timer 1003, and the like. The components in the control device 1 are connected by a communication bus. The memory 1002 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. The memory 1002 may alternatively be a storage device separate from the processor 1001 described above.

It will be appreciated by those skilled in the art that the device structure shown in fig. 4 is not limiting of the device and may include more or fewer components than shown, or certain components may be combined, or a different arrangement of components.

As shown in fig. 4, a control program of an environment adjusting device may be included in a memory 1002 as one storage medium. In the apparatus shown in fig. 4, a processor 1001 may be used to call a control program of an environment conditioning device stored in a memory 1002 and perform the relevant step operations of a control method of the environment conditioning device in the following embodiments.

The embodiment of the invention also provides a control method of the environment adjusting device, which is applied to the environment adjusting device.

Referring to fig. 5, an embodiment of a control method of the environmental conditioning apparatus of the present application is presented. In this embodiment, the control method of the environment adjustment device includes:

step S10, controlling the compressor to be started, and acquiring first coil temperature data of the heat exchanger and first temperature data of an air inlet side of the heat exchanger;

The first coil temperature data includes one or more first temperature values of the air intake side of the heat exchanger. The first temperature value may be a temperature detected at the current time or a temperature detected during the start-up before the current time.

The first temperature data includes one or more second temperature values on the compressor return air side. The second temperature value may be a temperature detected at the current time or a temperature detected during the start-up before the current time.

The first coil temperature data and the first temperature data are both data detected by the first temperature sensor and the second temperature sensor in the starting process of the compressor. Specifically, the data detected by the first temperature sensor and the second temperature sensor can be obtained at intervals of a set duration in the starting process of the compressor, and the detected data can be partially or completely used as corresponding first coil temperature data and first temperature data.

In this embodiment, in the on state of the compressor, the first coil temperature data and the first temperature data are obtained when the heat exchanger is in the evaporation state. In other embodiments, the first coil temperature data and the first temperature data may also be obtained when the heat exchanger is in a condensed state with the compressor on.

And step S20, when the first temperature data and the first coil temperature data reach a first preset condition that the heat pump system has a refrigerant shortage risk, the compressor is controlled to be closed.

The first preset condition is specifically a preset quantity relation, a target numerical value interval, a size relation and the like, which are needed to be reached by the first temperature data and the first coil temperature data when the refrigerant shortage risk exists in the starting process of the compressor.

When the first temperature data and the first coil temperature data reach a first preset condition, the heat pump system is indicated to have the risk of refrigerant shortage, and the compressor can be turned off, so that the compressor is prevented from running in a state of refrigerant shortage, and the compressor is protected.

When the first temperature data and the first coil temperature data do not reach the first preset condition, the heat pump system is indicated to have no refrigerant shortage risk, and the compressor is controlled to maintain the on state. Further, in order to ensure that the compressor can continue to operate reliably after being started, when the first temperature data and the first coil temperature data do not reach the first preset condition, the step S10 is executed again.

According to the control method of the environment regulating device, based on the environment regulating device provided with the heat pump system for exchanging heat with air in the air duct, in the starting process of the compressor, the first coil temperature data of the heat exchanger and the first temperature data of the air inlet side of the heat exchanger are detected, the compressor is closed when the first coil temperature data and the first temperature data meet the first preset condition that the heat pump system has a refrigerant shortage risk, the first coil temperature data can accurately reflect the heat exchange amount output by the heat exchanger in the starting process of the compressor, the first temperature data can accurately reflect the operation condition of the heat exchanger in the air duct in the starting process of the compressor, the refrigerant shortage risk of the heat pump system can be accurately represented by integrating the first coil temperature data and the first temperature data, and the compressor can be closed in time when the heat pump system has a refrigerant shortage risk, so that the compressor cannot be overheated and worn due to the refrigerant shortage operation, the risk of the compressor in the environment regulating device is reduced, and the reliability of the heat pump system operation is effectively improved.

Further, based on the above embodiment, another embodiment of the control method of the environmental conditioning apparatus of the present application is proposed. In this embodiment, the environmental conditioning apparatus includes at least two heat pump systems, each of which includes at least one heat exchanger disposed in the air duct, and the at least two heat exchangers are sequentially arranged along the air flow direction in the air duct, and referring to fig. 6, the step S10 includes: step S11, controlling each compressor to be started, and acquiring first coil temperature data of each heat exchanger and first temperature data of an air inlet side of each heat exchanger;

Based on step S11, step S20 includes: and S21, when the first temperature data and the first coil temperature data reach a first preset condition that the heat pump system has a refrigerant shortage risk, controlling the corresponding compressor to be closed.

When the first temperature data and the first coil temperature data reach a first preset condition that the heat pump system has a refrigerant shortage risk, controlling a corresponding compressor to be kept on and re-acquiring the first coil temperature data and the first temperature data of the air inlet side of a corresponding heat exchanger, and executing step S20.

Specifically, in this embodiment, the environmental conditioning apparatus includes a first heat pump system and a second heat pump system, where the first heat pump system includes a first heat exchanger and a first compressor, and the second heat pump system includes a second heat exchanger and a second compressor, where the first heat exchanger and the second heat exchanger are both disposed in the air duct, and the first heat exchanger is disposed on an air inlet side of the second heat exchanger.

And controlling the first compressor to be started and the second compressor to be started, acquiring first sub-coil temperature data and first air inlet data of the first heat exchanger, and acquiring second sub-coil temperature data and second air inlet temperature data of the second heat exchanger.

And when the first sub-coil temperature data and the first inlet air temperature data meet a first preset condition, controlling the first compressor to be closed. When the first sub-coil temperature data and the first air inlet temperature data do not meet the first preset condition, the first compressor is controlled to be started, the first sub-coil temperature data and the first air inlet data of the first heat exchanger are acquired again, and the first compressor is controlled to be opened and closed according to the first sub-coil temperature data and the first air inlet data.

And when the temperature data of the second sub-coil and the second inlet air temperature data meet a second preset condition, controlling the second compressor to be closed. And when the temperature data of the second sub-coil and the second air inlet temperature data do not meet the second preset condition, controlling the second compressor to be started, acquiring the temperature data of the second sub-coil and the second air inlet data of the second heat exchanger again, and controlling the second compressor to be opened and closed according to the temperature data of the second sub-coil and the second air inlet data.

In this embodiment, in the environment conditioning apparatus provided with more than one heat pump system, based on the above manner, the risk of damage of each compressor lack refrigerant in the environment conditioning apparatus is reduced, and the reliability of the overall operation of the heat pump system is effectively improved.

Further, in an implementation manner of this embodiment, the step of setting a corresponding temperature sensor on the air inlet side of each heat exchanger and obtaining the first temperature data on the air inlet side of each heat exchanger includes: and acquiring data detected by the temperature sensor corresponding to each heat exchanger, and acquiring the first temperature data corresponding to each heat exchanger.

Specifically, the first sub-temperature sensor corresponding to the first heat exchanger is arranged at the air inlet of the air duct, the second sub-temperature sensor corresponding to the second heat exchanger is arranged between the first heat exchanger and the second heat exchanger, the first temperature data of the first heat exchanger are detected through the first sub-temperature sensor, and the first temperature data of the second heat exchanger are detected through the second sub-temperature sensor.

In the embodiment, the first temperature data of each heat exchanger are detected through the corresponding temperature sensor, so that the accuracy of the first temperature data is improved, the compressors are guaranteed to be closed in time, the risk of damage of each compressor due to lack of refrigerant in the environment-adjusting equipment is further reduced, and the reliability of the overall operation of the heat pump system is effectively improved.

Further, in an implementation manner of this embodiment, the step of defining two adjacent heat exchangers sequentially arranged along the airflow direction as a first heat exchanger and a second heat exchanger in sequence, and obtaining first temperature data of an air inlet side of the second heat exchanger includes: and determining the first temperature data corresponding to the second heat exchanger according to the first coil temperature data corresponding to the first heat exchanger.

Specifically, a corresponding relationship between the first coil temperature data corresponding to the first heat exchanger and the first temperature data of the second heat exchanger may be pre-established, a number of relationships, a mapping relationship, etc., and based on the corresponding relationship, second temperature data of the second heat exchanger corresponding to the first coil temperature data of the current first heat exchanger may be determined.

In an implementation manner of this embodiment, defining a first compressor as the compressor in the heat pump system where the first heat exchanger is located, and determining the first temperature data corresponding to the second heat exchanger according to the first coil temperature data corresponding to the first heat exchanger includes: determining a temperature correction value according to the air outlet quantity of the air channel, the operating frequency of the first compressor and the first coil temperature data corresponding to the first heat exchanger; and correcting the first coil temperature data corresponding to the first heat exchanger according to the temperature correction value to obtain the first temperature data corresponding to the second heat exchanger.

Specifically, in this embodiment, the temperature correction value is inversely related to the air output, the temperature correction value is positively related to the operating frequency, and the temperature correction value is inversely related to the first coil temperature data. In other embodiments, the temperature correction value may also be associated with the output air volume, the operating frequency, and the first coil temperature data differently.

Specifically, a first heat exchange amount output by the heat exchanger can be determined according to the operating frequency and the first coil temperature data, a second heat exchange amount required by the heat exchanger is determined according to the air output quantity, and a temperature correction value is determined according to the ratio of the first heat exchange amount to the second heat exchange amount.

For example, in the present embodiment, the temperature correction value tx= (f×a-T21×b)/(q×c), where a, b, c are preset constant values, F is the operating frequency of the first compressor, T21 is the first coil temperature data of the first heat exchanger, and Q is the air output.

In this embodiment, the temperature correction value is a temperature adjustment amplitude of the first coil temperature data corresponding to the first heat exchanger. In other embodiments, the temperature correction value may also be a proportion of the first coil temperature data corresponding to the first heat exchanger.

In another implementation manner of this embodiment, the mapping table may also be queried through the first coil temperature data corresponding to the first heat exchanger, and the result obtained by matching is used as the first temperature data of the second heat exchanger.

In this embodiment, the first temperature data of the air intake side of the second heat exchanger is no longer detected by the temperature sensor, but is determined by the first coil temperature data of the first heat exchanger, which is favorable for reducing the number of temperature sensors required for detecting the air intake temperature of each heat exchanger when more than one heat exchanger is arranged in the air duct, reducing the air flow resistance in the air duct caused by setting of too many temperature sensors, and reducing the hardware cost and the power energy consumption of the environment-conditioning equipment while ensuring the accuracy of the first temperature data of the second heat exchanger. And the first temperature data of the second heat exchanger is obtained by combining the air outlet quantity of the air channel, the operating frequency of the first compressor and the temperature correction value corresponding to the first coil temperature data corresponding to the first heat exchanger, so that the accuracy of the obtained first temperature data of the second heat exchanger is improved, and the compressor is further protected.

Further, based on any one of the above embodiments, a further embodiment of the control method of the environmental conditioning apparatus of the present application is provided. In this embodiment, the first preset condition includes a first sub-condition or a second sub-condition, and the step S20 includes:

When the environment adjusting device comprises more than one heat pump system, when first temperature data and first coil temperature data corresponding to a heat exchanger arranged in an air duct in the heat pump system reach a first sub-condition or a second sub-condition, the corresponding compressors are controlled to be closed; and when the first temperature data and the first coil temperature data corresponding to the heat exchanger arranged in the air duct in the heat pump system do not reach the first sub-condition and the second sub-condition, controlling the corresponding compressors to be started. The compressors in each heat pump system are independently controlled.

The preset temperature difference value, the preset temperature difference change value and the preset temperature change value can be preset fixed values or can be values obtained according to the actual running condition of the environment adjusting equipment. Specifically, when the number of the heat pump systems is more than one, different first heat pump systems correspond to different preset temperature differences, preset temperature difference change values and preset temperature change values. Specifically, the preset value in the first sub-condition or the second sub-condition corresponding to the second heat pump system disposed at the downstream side in the air flow direction may be determined according to the current first coil temperature data of the heat exchanger in the first heat pump system disposed at the upstream side in the air flow direction and the first temperature data of the air intake side.

The first temperature data and the second temperature data may include an inlet air temperature of the heat exchanger and a coil temperature of the heat exchanger detected at a current time or a time before the current time reaching a preset condition, respectively, and a difference between the inlet air temperature and the coil temperature may be used as a temperature difference.

In this embodiment, the temperature difference change value is the rate of change of the temperature difference between the inlet side temperature and the coil temperature. In other embodiments, the temperature differential change value is a magnitude of change in the temperature differential between the inlet side temperature and the coil temperature. Specifically, the first temperature data may include a first air inlet temperature detected at a first time and a second air inlet temperature detected at a second time in a compressor starting process, the first coil temperature data may include a first coil temperature detected at the first time and a second coil temperature detected at the second time in the compressor starting process, a first difference between the first air inlet temperature and the first coil temperature is determined, a second difference between the second air inlet temperature and the second coil temperature is determined, a time interval between the first time and the second time is determined, an absolute value of a difference between the first difference and the second difference is determined, and a ratio of the absolute value and the time interval is used as a temperature difference change value according to the absolute value. In other embodiments, the absolute value may also be directly used as the temperature difference variation value. The later time of the first time and the second time may be the current time or may be the time before the current time during the start of the compressor.

In this embodiment, the temperature change value is the temperature change value of the coil of the heat exchanger in the on state of the compressor. In other embodiments, the temperature change value is a rate of change of temperature of the coil of the heat exchanger at the compressor on condition. Specifically, the first temperature data may include a third coil temperature of the heat exchanger at a third time or in a period of time during which the compressor is turned on, and the second temperature data may include a fourth coil temperature of the heat exchanger at a fourth time or in a period of time during which the compressor is turned on, and the temperature change value is determined according to a difference between the fourth coil temperature and the third coil temperature.

The coil temperature of the heat exchanger and the air inlet temperature of the heat exchanger in the starting process of the compressor meet a first sub-condition, which indicates that the temperature difference between the coil temperature of the compressor and the air inlet temperature is continuously too small, and the temperature difference is considered to be caused by the fact that the heat exchanger in the air duct cannot normally exchange heat due to insufficient refrigerant circulated by the heat pump system, for example, the heat exchanger in the air duct continuously approaches the air inlet temperature of the heat exchanger due to too high evaporation temperature caused by lack of refrigerant in the evaporation state, so that the risk of lack of refrigerant in the heat pump system can be accurately judged through the first sub-condition.

In addition, the coil temperature of the heat exchanger and the air inlet temperature of the heat exchanger in the opening process of the compressor meet a second sub-condition, which indicates that the temperature difference between the coil temperature of the heat exchanger and the air inlet temperature is too small, and the coil temperature of the heat exchanger greatly fluctuates after the compressor is opened, which is considered to be caused by the fact that the heat exchanger in the air duct cannot provide enough heat exchange quantity for normal heat exchange due to insufficient refrigerant circulated by the heat pump system, so that the refrigerant shortage risk of the heat pump system can be accurately judged through the second sub-condition.

Based on the method, when the first temperature data and the first coil temperature data reach the first sub-condition or the second sub-condition, the compressor is turned off, so that the compressor is turned off in time when the heat pump system has the refrigerant shortage risk, the risk that the compressor runs in the refrigerant shortage state is further reduced, the compressor is further protected, and the running reliability of the heat pump system is effectively improved.

In other embodiments, the preset conditions may also include a fifth sub-condition, where the temperature difference between the air inlet side and the coil of the heat exchanger is smaller than the preset temperature difference, and when the first temperature data and the first coil temperature data reach the fifth sub-condition, the compressor is controlled to be turned off.

Further, based on any one of the above embodiments, a further embodiment of the control method of the environmental conditioning apparatus of the present application is provided. In this embodiment, referring to fig. 7, after step S10, the method further includes:

step S201, when the start-up duration of the compressor is less than a first preset duration, executing the step of controlling the compressor to be turned off when the first temperature data and the first coil temperature data reach the first sub-condition;

Step S202, when the starting time of the compressor is longer than or equal to a second preset time, executing the step of controlling the compressor to be closed when the first temperature data and the first coil temperature data reach the second sub-condition;

Specifically, each heat pump system in step S21 described above may be controlled in accordance with step S201 and step S202 herein.

The on-time of the compressor may be acquired during the execution of step S10, or may be detected after step S10. Specifically, the starting time of the compressor can be detected in the starting process of the compressor, and the required temperature data is judged as the first temperature data and the second temperature data according to the corresponding sub-conditions of the starting time detection.

In the embodiment, when the starting time of the compressor is shorter, the identification of the risk of the lack of refrigerant in the heat pump system is performed based on the first sub-condition, so that the accuracy of identifying the risk of lack of refrigerant due to the temperature fluctuation of the coil pipe of the heat exchanger in the frequency raising process of the starting stage of the compressor is avoided, and the risk of damage of the compressor due to lack of refrigerant is further reduced; when the opening time of the compressor is longer, the refrigerant shortage risk identification of the heat pump system is carried out based on the second sub-condition, and on the basis that the temperature difference between the coil temperature and the air inlet temperature is too small after the compressor enters the stable operation, the change of the coil temperature can more accurately reflect the operation condition of the compressor which is influenced by the quantity of the refrigerant in the opening process, the accuracy of the refrigerant shortage state identification of the heat pump system at the stage can be effectively improved, and the risk of damage of the compressor due to the refrigerant shortage is further reduced.

Further, in this embodiment, before the step of controlling the compressor to be turned off, when the first temperature data and the first coil temperature data reach the first sub-condition, the method further includes: when the starting time of the compressor is smaller than a third preset time, determining a first preset temperature difference change value as the preset temperature difference change value; when the starting time of the compressor is longer than or equal to the third preset time and shorter than the first preset time, determining a second preset temperature difference change value as the preset temperature difference change value; wherein the first preset temperature difference change value is smaller than the second preset temperature difference change value.

When the starting time is shorter than the third preset time, the compressor is in the first running period after starting, and in the period, the compressor is started and is in ascending frequency running, and a smaller preset temperature difference change value is adopted in the process, so that false identification of a refrigerant deficiency caused by smaller temperature difference change value due to the fact that the coil temperature of the heat exchanger begins to slowly change and the temperature of the coil is close to the air inlet temperature of the heat exchanger is avoided; when the opening time length is longer than or equal to the third preset time length and is shorter than the first preset time length, the temperature of the coil pipe of the heat exchanger reaches a state with larger deviation from the room temperature, and a larger preset temperature difference change value is adopted at the moment, so that the phenomenon that temperature fluctuation in a reasonable range in the normal heat exchange process of the heat pump system is mistakenly regarded as a refrigerant shortage is avoided. Based on the method, the condition of lack of the refrigerant of the heat pump system is identified based on different preset temperature difference change values in different time intervals where different starting time periods are located, so that the accuracy of identification of the lack of the refrigerant of the heat pump system is improved, and the risk of damage of the compressor due to the lack of the refrigerant is reduced.

Further, in this embodiment, the first coil temperature data includes at least two first sub-temperatures detected in a first period of time and at least two second sub-temperatures detected in a second period of time, a duration of the compressor being opened in the first period of time is less than the second preset duration, and a duration of the compressor being opened in the second period of time is greater than or equal to the second preset duration, and after the step of acquiring the first coil temperature data of the heat exchanger and the first temperature data of the air intake side of the heat exchanger, further includes: when the starting time of the compressor is longer than or equal to a second preset time, determining the minimum temperature value of the at least two first sub-temperatures, and determining the maximum temperature value of the at least two second sub-temperatures; and determining the first temperature change value according to the difference value between the maximum temperature value and the minimum temperature value.

In this embodiment, the temperature change value is a difference obtained by subtracting the minimum temperature value from the maximum temperature value. In other embodiments, the temperature change value may also be a result of adjusting the difference obtained by subtracting the minimum temperature value from the maximum temperature value according to a preset coefficient or a coefficient determined by a state parameter of the actual operation of the environmental conditioning apparatus.

In this embodiment, the temperature change value is determined according to the minimum coil temperature value in the initial stage after the compressor is started and the maximum coil temperature value in the operation stage close to the current moment, so that the temperature change value can accurately reflect the temperature change condition of the heat exchanger coil in the whole operation process after the compressor is started for a long time, and the refrigerant change condition after the compressor is started for a long time can be accurately identified based on the temperature change value, further the accuracy of identifying the refrigerant shortage of the heat pump system is effectively improved, the compressor is turned off in time, and damage of the compressor due to the refrigerant shortage is further reduced.

Further, based on any one of the above embodiments, still another embodiment of the control method of the environmental conditioning apparatus of the present application is provided. In this embodiment, referring to fig. 8, after step S20, the method further includes:

step S30, acquiring the closing time of the compressor, second temperature data of an air inlet side of the heat exchanger and second coil temperature data of the heat exchanger;

And step S40, when the closing time is longer than or equal to a fourth preset time, and/or when the third temperature data and the second coil temperature data reach a second preset condition that the heat pump system does not have the risk of refrigerant deficiency, controlling the compressor to be started.

In this embodiment, the closing time period is longer than or equal to the fourth preset time period, and when the second temperature data and the second coil temperature data reach the second preset condition, the heat pump system may be considered to have no risk of refrigerant shortage. In other embodiments, the heat pump system may be considered to have no risk of refrigerant deficiency when the closing time period is greater than or equal to the fourth predetermined time period and one of the second temperature data and the second coil temperature data reaches the second predetermined condition.

Further, in this embodiment, the second preset condition includes that the number of times that the first sub-condition or the second sub-condition is satisfied in the closing process of the compressor is less than or equal to a preset threshold. Specifically, the data corresponding to the second temperature data and the second coil temperature data in the first closing stage are first target data, the data corresponding to the second temperature data and the second coil temperature data in the second closing stage are second target data, the closing time of the compressor in the first closing stage is smaller than a fifth preset time, the fifth preset time is smaller than a fourth preset time, the closing time of the compressor in the second closing stage is longer than or equal to the fifth preset time, and the times of the closing of the compressor in the second closing stage can comprise the sum of the times that the first target data meets the first sub-condition and the times that the second target data meets the second sub-condition.

Specifically, the preset temperature difference change value in the first sub-condition in the closing process may specifically be the first preset temperature difference change value, or may be other values.

In this embodiment, the elimination of the refrigerant shortage state is accurately performed by the closing duration and/or the second temperature data and the second coil temperature data, and the compressor is automatically started in time, so that the normal heat exchange requirement of the heat pump system is met on the basis of protecting the compressor.

In other embodiments, it may also be determined that the heat pump system does not have a risk of refrigerant shortage when a preset instruction input by a user is received, and the compressor is controlled to be turned on. In other embodiments, when the closing time period is greater than or equal to a fourth preset time period, and when the second temperature data and the second coil temperature data do not reach the first sub-condition and/or the second sub-condition, it may be determined that the heat pump system does not have a refrigerant shortage risk, and the compressor is controlled to be turned on.

In addition, the embodiment of the invention also provides a storage medium, wherein the storage medium stores a control program of the environment adjusting device, and the control program of the environment adjusting device realizes the relevant steps of any embodiment of the control method of the environment adjusting device when being executed by a processor.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.

The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) as described above, including several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, an environment-regulating device, or a network device, etc.) to perform the method according to the embodiments of the present invention.

The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims

1. A control method of an environmental conditioning apparatus, characterized in that the environmental conditioning apparatus includes an air duct and a heat pump system including a compressor and a heat exchanger provided in the air duct, the control method of the environmental conditioning apparatus comprising the steps of:

2. The method of controlling an environmental conditioning apparatus according to claim 1, wherein the environmental conditioning apparatus includes at least two heat pump systems each including at least one heat exchanger provided in the air duct, the at least two heat exchangers being arranged in sequence in an air flow direction in the air duct, the step of controlling the compressor to be turned on and acquiring first temperature data of an air intake side of the heat exchanger and a coil temperature of the heat exchanger includes:

3. The method of controlling an environmental conditioning apparatus according to claim 2, wherein the step of providing a corresponding temperature sensor on the air intake side of each of the heat exchangers and acquiring first temperature data of the air intake side of each of the heat exchangers includes:

4. The method of controlling an environmental conditioning apparatus according to claim 2, wherein the step of defining two adjacent heat exchangers arranged in order in the air flow direction as a first heat exchanger and a second heat exchanger in order, and acquiring first temperature data of an air intake side of the second heat exchanger includes:

5. The method of controlling an environmental conditioning apparatus according to claim 4, wherein a first compressor is defined as a compressor in the heat pump system in which the first heat exchanger is located, and the step of determining the first temperature data corresponding to the second heat exchanger from the first coil temperature data corresponding to the first heat exchanger includes:

6. The control method of an environmental conditioning apparatus according to claim 4, wherein the temperature correction value is inversely related to the air output volume, the temperature correction value is positively related to the operating frequency, and the temperature correction value is inversely related to the first coil temperature data.

7. The control method of an environmental conditioning apparatus according to any one of claims 1 to 6, wherein the first preset condition includes a first sub-condition or a second sub-condition, and the step of controlling the compressor to be turned off when the first temperature data and the first coil temperature data reach the first preset condition that the heat pump system is at a risk of being deficient in refrigerant includes:

8. The method of controlling an environmental conditioning apparatus according to claim 7, further comprising, after the step of acquiring the first coil temperature data of the heat exchanger and the first temperature data of the air intake side of the heat exchanger:

9. The method of controlling an environmental conditioning apparatus according to claim 7, wherein the step of controlling the compressor to be turned off further comprises, when the first temperature data and the first coil temperature data reach the first sub-condition:

10. The method of controlling an environmental conditioning apparatus according to claim 7, wherein the first coil temperature data includes at least two first sub-temperatures detected during a first period of time and at least two second sub-temperatures detected during a second period of time, a duration of the compressor being turned on during the first period of time being less than the second preset duration, the duration of the compressor being turned on during the second period of time being greater than or equal to the second preset duration, the step of acquiring the first coil temperature data of the heat exchanger and the first temperature data of the intake side of the heat exchanger further comprising, after the step of:

11. The control method of an environmental conditioning apparatus according to any one of claims 1 to 6, wherein after the step of controlling the compressor to be turned off when the first temperature data and the first coil temperature data reach a first preset condition that the heat pump system is at a risk of being deficient in refrigerant, further comprising:

12. The control method of an environment conditioning apparatus according to claim 11, wherein the second preset condition includes a number of times that the first sub-condition or the second sub-condition is satisfied during the closing of the compressor being less than or equal to a preset threshold;

13. An environmental conditioning apparatus, characterized in that the environmental conditioning apparatus comprises:

An air duct;

A control device, the heat pump system is connected with the control device, the control device comprises: memory, a processor and a control program of an environment conditioning device stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the control method of an environment conditioning device according to any one of claims 1 to 12.

14. The environmental conditioning apparatus of claim 13 wherein the environmental conditioning apparatus includes at least two of the heat pump systems, the heat exchangers in at least two of the heat pump systems being arranged in sequence along the direction of airflow within the duct.

15. A storage medium having stored thereon a control program of an environment conditioning device, which when executed by a processor, implements the steps of the control method of an environment conditioning device according to any one of claims 1 to 12.