Control method of environmental conditioning device, environmental conditioning device and storage medium

Abstract

The present invention discloses a control method for an environment conditioning device, an environment conditioning device and a storage medium. The environment conditioning device includes an air conditioner and a fresh air device, and the method includes: obtaining the combustible gas concentration of the indoor air duct of the air conditioner; when the combustible gas concentration is greater than a preset concentration, controlling the fresh air device to operate so that the air in the target space where the environment conditioning device is located is discharged outdoors through the fresh air device. The present invention aims to avoid safety accidents when the refrigerant of the air conditioner leaks, and improve the safety of the use of the air conditioner.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental conditioning equipment, and in particular to a control method of environmental conditioning equipment, an environmental conditioning equipment and a storage medium. Background Art

[0002] Air conditioners are used more and more widely in daily life and production. The refrigerant required for the operation of air conditioners is generally flammable. When a leak occurs, it is easy to cause combustion or explosion in the space where the air conditioner is located, resulting in safety accidents. Summary of the invention

[0003] The main purpose of the present invention is to provide a control method for an environmental conditioning device, an environmental conditioning device and a storage medium, aiming to avoid safety accidents caused by refrigerant leakage in the air conditioner and improve the safety of the air conditioner.

[0004] To achieve the above object, the present invention provides a control method for an environment conditioning device, wherein the environment conditioning device includes an air conditioner and a fresh air device, and the control method for the environment conditioning device includes the following steps:

[0005] Obtaining the combustible gas concentration in the indoor air duct of the air conditioner;

[0006] When the concentration of the combustible gas is greater than a preset concentration, the fresh air device is controlled to operate so that the air in the target space where the environmental conditioning equipment is located is discharged outdoors through the fresh air device.

[0007] Optionally, the fresh air device is provided with an indoor air outlet, a fresh air inlet, a fresh air outlet connected to the indoor air duct, a first air duct connected to the fresh air outlet and the fresh air inlet, and a second air duct connected to the indoor air outlet and the fresh air outlet, the fresh air device further comprises a switch assembly and a fresh air fan provided in the second air duct, and the step of controlling the operation of the fresh air device so that the air in the indoor space is discharged outdoors through the fresh air device comprises:

[0008] The fresh air fan is controlled to operate and the switch assembly is controlled to operate in a first state so that the fresh air outlet is closed and the air in the target space is discharged outdoors through the indoor air outlet, the second air duct, the first air duct and the fresh air inlet in sequence.

[0009] Optionally, a first vent and a second vent are provided between the first air duct and the second air duct, the first vent is provided corresponding to the fresh air outlet, the second vent is provided corresponding to the fresh air inlet, the switch assembly includes a first switch module, a second switch module and a third switch module, and the step of controlling the switch assembly to operate in the first state includes:

[0010] Controlling the first switch module to operate in a first sub-state, controlling the second switch module to operate in a second sub-state, and controlling the third switch module to operate in a third sub-state;

[0011] The first state includes the first sub-state, the second sub-state and the third sub-state. In the first sub-state, the fresh air outlet is closed and the first vent is opened. In the second sub-state, the indoor vent is opened. In the third sub-state, the second vent is closed.

[0012] Optionally, the step of controlling the operation of the fresh air device so that the air in the indoor space is discharged outdoors through the fresh air device includes:

[0013] Determining a concentration difference between the combustible gas concentration and the preset concentration;

[0014] When the concentration difference is less than or equal to the preset concentration difference, the step of controlling the fresh air fan to operate and controlling the switch component to operate in the first state is performed, so that the fresh air outlet is closed and the air in the target space is discharged outdoors through the indoor air outlet, the second air duct, the first air duct and the fresh air inlet in sequence;

[0015] When the concentration difference is greater than the preset concentration difference, the fresh air fan is controlled to operate and the switch component is controlled to operate in a third state, so that the fresh air outlet is opened, the air in the target space is discharged outdoors through the indoor air outlet, the second air duct, the first air duct and the fresh air inlet in sequence, and the air in the indoor air duct is discharged outdoors through the second air duct, the first air duct and the fresh air inlet in sequence.

[0016] Optionally, after the step of obtaining the combustible gas concentration in the indoor air duct of the air conditioner, the method further includes:

[0017] When the combustible gas concentration is less than or equal to the preset concentration, the fresh air fan is controlled to operate and the switch component is controlled to operate in a second state, so that outdoor fresh air is delivered into the indoor space through the fresh air inlet, the first air duct, the second air duct and the fresh air outlet in sequence.

[0018] Optionally, a first vent and a second vent are provided between the first air duct and the second air duct, the first vent is provided corresponding to the fresh air outlet, the second vent is provided corresponding to the fresh air inlet, the switch assembly includes a first switch module, a second switch module and a third switch module, and the step of controlling the switch assembly to operate in the second state includes:

[0019] Controlling the first switch module to operate in a fourth sub-state, controlling the second switch module to operate in a fifth sub-state, and controlling the third switch module to operate in a sixth sub-state;

[0020] Among them, the second state includes the fourth sub-state, the fifth sub-state and the sixth sub-state. In the fourth sub-state, the fresh air outlet is opened and the first vent is closed, in the fifth sub-state, the indoor air outlet is closed, and in the sixth sub-state, the second vent is opened.

[0021] Optionally, the step of controlling the operation of the fresh air fan includes:

[0022] The fresh air fan is controlled to run at a speed greater than a preset speed.

[0023] Optionally, the step of controlling the fresh air fan to operate at a speed greater than a preset speed includes:

[0024] Determining a concentration difference between the combustible gas concentration and the preset concentration;

[0025] Determining a target speed within a speed range greater than or equal to the preset speed according to the concentration difference;

[0026] Control the fresh air fan to operate at the target speed.

[0027] Optionally, before the step of controlling the operation of the fresh air device so that the air of the target space where the environmental conditioning device is located is discharged outdoors through the fresh air device, the step further includes:

[0028] When the combustible gas concentration is greater than a preset concentration, the load in the air conditioner is controlled to be turned off; and / or, when the combustible gas concentration is greater than a preset concentration, the environmental conditioning device is controlled to output a prompt message.

[0029] In addition, in order to achieve the above-mentioned purpose, the present application also proposes an environment adjustment device, which includes:

[0030] Air conditioner;

[0031] Fresh air device; and

[0032] A control device, the air conditioner and the fresh air device are both connected to the control device, the control device includes: a memory, a processor, and a control program for an environmental conditioning device stored in the memory and executable on the processor, the control program for the environmental conditioning device, when executed by the processor, implements the steps of the control method for the environmental conditioning device as described in any one of the above items.

[0033] In addition, in order to achieve the above-mentioned purpose, the present application also proposes a storage medium, on which a control program of an environmental conditioning device is stored. When the control program of the environmental conditioning device is executed by a processor, the steps of the control method of the environmental conditioning device as described in any of the above items are implemented.

[0034] A control method for an environmental conditioning device proposed in the present invention is based on the environmental conditioning device including an air conditioner and a fresh air device. When the concentration of combustible gas in the indoor air duct of the air conditioner is greater than a preset concentration, the method indicates that the air conditioner has a risk of refrigerant leakage. At this time, the fresh air device is used to discharge the air in the target space where the environmental conditioning device is located to the outdoors, so as to avoid safety accidents such as combustion or explosion caused by excessive concentration of combustible gas in the target space, thereby improving the safety of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of an embodiment of the environment adjustment device of the present invention;

[0036] Figure 2 This is a schematic diagram of the internal structure of the fresh air device in the environmental conditioning equipment of the present invention;

[0037] Figure 3 A schematic diagram of the hardware structure involved in the operation of an embodiment of an environment adjustment device of the present invention;

[0038] Figure 4 A schematic flow chart of an embodiment of a control method for an environment conditioning device of the present invention;

[0039] Figure 5 A schematic flow chart of another embodiment of a control method for an environment conditioning device of the present invention;

[0040] Figure 6 This is a flow chart of another embodiment of the control method of the environmental conditioning device of the present invention.

[0041] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0042] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0043] An embodiment of the present invention provides an environment adjustment device.

[0044] In this embodiment, refer to Figures 1 to 3The environment conditioning device includes an air conditioner 1, a fresh air device 2, and a control device 3. The air conditioner 1 includes an indoor unit, and the indoor unit includes an indoor air duct and an indoor heat exchanger 11 and an indoor fan 12 arranged in the indoor air duct, and the indoor air duct is connected to the fresh air outlet 201 of the fresh air device 2. The air conditioner 1 and the fresh air device 2 are both connected to the control device 3. In other embodiments, the air conditioner 1 and the fresh air device 2 can also be independently provided, that is, the air ducts of the two devices are not connected, and the air outlets of the two devices are respectively connected to the indoor space.

[0045] In this embodiment, the air conditioner 1 is a duct air conditioner. In other embodiments, the air conditioner 1 may also be other types of air conditioners, such as a wall-mounted air conditioner, a cabinet air conditioner, a window air conditioner, etc.

[0046] In this embodiment, the indoor environment where the environment conditioning device is located may have a first space and a second space separated therefrom, the first space being used to install the environment conditioning device, the second space being the space that the environment conditioning device needs to regulate, and the indoor air outlet 101 of the air conditioner 1 being connected to the second space. In this embodiment, the air conditioner 1 is a duct air conditioner, then the first space is the ceiling space in the indoor environment, and the indoor unit and the fresh air device 2 of the duct air conditioner may both be installed in the first space. In other embodiments, the air conditioner 1 is a window air conditioner, then the first space may be the installation space in the wall of the indoor environment, and both the window air conditioner and the fresh air device 2 may be installed in the wall space.

[0047] The air conditioner 1 includes a housing, in which an indoor air duct and an indoor heat exchanger 11 and an indoor fan 12 arranged in the indoor air duct are arranged. The housing is provided with an indoor air outlet 101 and an indoor return air outlet 102 connected to the indoor environment. When the indoor fan 12 is turned on, the air in the indoor environment can be driven from the indoor return air outlet 102 into the indoor air duct and exchange heat with the indoor heat exchanger 11. The heat-exchanged air can be sent into the room through the indoor air outlet 101. Among them, the first space can be provided with an air outlet connected to the second space, and the indoor return air outlet 102 is connected to the air outlet through a pipeline. The air in the second space can enter the pipeline through the air outlet and enter the indoor air duct through the indoor return air outlet 102.

[0048] The fresh air device 2 is provided with a fresh air inlet 202, a fresh air outlet 201 and a fresh air duct connecting the fresh air inlet 202 and the fresh air outlet 201. The fresh air outlet 201 is connected to the indoor air duct, and the fresh air inlet 202 is used to connect to the outdoor environment. A fresh air fan 21 is provided in the fresh air duct, and when the fresh air fan 21 is turned on, it can drive the fresh air of the outdoor environment to enter the fresh air duct from the fresh air inlet 202.

[0049] The fresh air device 2 is detachably connected to the air conditioner 1 and can be installed on the indoor unit of the air conditioner 1 according to customer needs. The type of the fresh air device 2 can be selected by the customer. The fresh air device 2 can be installed on the side wall of the indoor unit of the air conditioner 1, and the fresh air outlet 201 can be set through the side wall of the indoor unit of the air conditioner 1. The side wall here can include one of the upper side wall, the lower side wall, the left side wall and the right side wall of the indoor unit of the air conditioner 1.

[0050] The fresh air outlet 201 may be provided with a fresh air valve, which may be used to open or close the fresh air outlet 201. The fresh air inlet 202 may be provided with a detachable purification module (such as a HEPA filter, etc.), which may be used to purify the fresh air.

[0051] In this embodiment, the fresh air outlet 201 of the fresh air device 2 is connected to the air inlet side of the indoor heat exchanger 11. Specifically, the fresh air outlet 201 is located between the indoor return air outlet 102 and the indoor heat exchanger 11. In other embodiments, the fresh air outlet 201 of the fresh air device 2 may also be connected to the air outlet side of the indoor heat exchanger 11, and the fresh air outlet 201 is located between the indoor air outlet 101 and the indoor heat exchanger 11.

[0052] In other embodiments, the fresh air device 2 may not be provided with the fresh air fan 21 , and the fresh air is introduced through the control of the fresh air valve on the fresh air outlet 201 and the driving of the indoor fan 12 .

[0053] In other embodiments, the fresh air outlet 201 may also be directly connected to the indoor space.

[0054] Further, in this embodiment, in addition to the fresh air inlet 202 and the fresh air outlet 201, the fresh air device 2 is also provided with an indoor air outlet 203. In this embodiment, the indoor air outlet 203 is connected to the first space mentioned above. In other embodiments, the indoor air outlet 203 may also be connected to the second space mentioned above.

[0055] The fresh air duct includes a first duct 01 and a second duct 02. The first duct 01 connects the fresh air outlet 201 and the fresh air inlet 202, and the second duct 02 connects the indoor air outlet 203 and the fresh air outlet 201. A first vent 03 and a second vent 04 are provided between the first duct 01 and the second duct 02. The first vent 03 is provided corresponding to the fresh air outlet 201, and the second vent 04 is provided corresponding to the fresh air inlet 202. The fresh air fan 21 is provided in the second duct 02.

[0056] The fresh air device 2 also includes a switch assembly 22, which is used to adjust the flow direction of air in the fresh air device between the first air duct 01 and the second air duct 02. In this embodiment, the switch assembly 22 includes a first switch module 221, a second switch module 222 and a third switch module 223. The first switch module 221, the second switch module 222 and the third switch module 223 are all connected to the control device 3. In this embodiment, the first switch module 221 and the second switch module 222 are both switching valves. The third switch module 223 is a switching grille. In other embodiments, the first switch module 221, the second switch module 222 and the third switch module 223 can also be set as other types of switches according to needs.

[0057] The first switch module 221 is used to adjust the flow direction of the air out of the second air duct 02 between the fresh air outlet 201 and the first air duct 01. The first switch module 221 can move between a first position and a second position. When the first switch module 221 is in the first position, the fresh air outlet 201 is closed and the first vent 03 is opened. When the first switch module 221 is in the second position, the fresh air outlet 201 is opened and the first vent 03 is closed. In addition, when the first switch module 221 is in a fifth position between the first position and the second position, the fresh air outlet 201 and the first vent 03 can be opened at the same time. In this embodiment, the first channel opening and the fresh air outlet 201 are both arranged on the air outlet side of the fresh air fan 21. When the first switch module 221 is in the first position, the air in the second air duct 02 driven by the fresh air fan 21 flows into the first air duct 01 from the first vent 03 and then is discharged to the outside from the fresh air inlet 202. When the first switch module 221 is in the second position, the air in the second air duct 02 driven by the fresh air fan 21 is sent into the indoor air duct or directly into the indoor space from the fresh air outlet 201. In other embodiments, the direction of the fresh air fan 21 can be switched, and the first channel opening and the fresh air outlet 201 can also be switched to the air inlet side of the fresh air fan 21.

[0058] The second switch module 222 is used to open or close the indoor air outlet 203. The second switch module 222 can move between a third position and a fourth position. When the second switch module 222 is in the third position, the indoor air outlet 203 is opened, and when the second switch module 222 is in the fourth position, the indoor air outlet 203 is closed. In this embodiment, the indoor air outlet 203 is arranged on the air inlet side of the fresh air fan 21, and when the second switch module 222 is in the third position, the fresh air fan 21 drives the indoor air from the indoor air outlet 203 into the second air duct 02.

[0059] The third switch module 223 is used to open or close the second vent 04. When the third switch module 223 is in the open state, the second vent 04 is opened; when the third switch module 223 is in the closed state, the second vent 04 is closed. In this embodiment, the second vent 04 is arranged on the air inlet side of the fresh air fan 21. When the third switch module 223 is in the open state, the fresh air fan 21 drives the outdoor fresh air to enter the first air duct 01 from the fresh air outlet 201 and then directly enter the second air duct 02 through the second vent 04.

[0060] The fresh air device 2 includes a first operating mode and a second operating mode. Figure 2 (a), in the first operating mode, the first switch module 221 operates in the first sub-state (in the first position mentioned above), the second switch module 222 operates in the second sub-state (in the third position mentioned above), and the third switch module 223 operates in the third sub-state (in the closed state). In the first sub-state, the first switch module 221 closes the fresh air outlet 201 and opens the first vent 03. In the second sub-state, the second switch module 222 opens the indoor vent 203. In the third sub-state, the third switch module 223 closes the second vent 04. The fresh air fan 21 drives the indoor air to pass through the indoor vent 203, the second duct 02, the first duct 03, the first duct 01 and the fresh air inlet 202 in sequence and discharge them outdoors. Figure 2 (b) In the second operating mode, the first switch module 221 operates in the fourth sub-state (in the second position mentioned above), the second switch module 222 operates in the fifth sub-state (in the fourth position mentioned above), and the third switch module 223 operates in the sixth sub-state (in the open state). In the fourth sub-state, the first switch module 221 opens the fresh air outlet 201 and closes the first vent 03, in the fifth sub-state, the second switch module 222 closes the indoor vent 203, and in the sixth sub-state, the third switch module 223 opens the second vent 04, and the fresh air fan 21 drives the outdoor fresh air to be delivered into the room through the fresh air inlet 202, the first air duct 01, the second vent 04, the second air duct 02 and the fresh air outlet 201 in sequence.

[0061] Furthermore, in this embodiment, in the first space, the air conditioner 1 includes an indoor unit, and the control device 3 and the fresh air device 2 are arranged on two opposite sides of the indoor unit.

[0062] Further, in this embodiment, referring to Figure 1 and Figure 3A combustible gas sensor 4 is provided in the indoor air duct, and the combustible gas sensor 4 is used to detect the concentration of the combustible gas in the indoor air duct. The combustible gas sensor 4 is connected to the control device 3, and the control device 3 can obtain the data detected by the combustible gas sensor 4.

[0063] In the embodiment of the present invention, refer to Figure 3 The control device 3 of the environment conditioning device includes: a processor 1001 (such as a CPU), a memory 1002, a timer 1003, etc. The various components in the control device 3 are connected via a communication bus. The memory 1002 can be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. The memory 1002 can also be a storage device independent of the aforementioned processor 1001.

[0064] Those skilled in the art will understand that Figure 2 The device structure shown in the figure does not constitute a limitation of the device, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0065] like Figure 3 As shown, the memory 1002 as a storage medium may include a control program of the environment adjustment device. Figure 3 In the device shown, the processor 1001 can be used to call the control program of the environmental conditioning device stored in the memory 1002 and execute the relevant step operations of the control method of the environmental conditioning device in the following embodiments.

[0066] An embodiment of the present invention further provides a control method for an environmental conditioning device, which is applied to the above-mentioned environmental conditioning device.

[0067] Reference Figure 4 , an embodiment of a control method of an environmental conditioning device of the present application is proposed. In this embodiment, the control method of the environmental conditioning device includes:

[0068] Step S10, obtaining the combustible gas concentration in the indoor air duct of the air conditioner;

[0069] In this embodiment, step S10 can be performed when the air conditioner is powered on. In other embodiments, step S10 can also be performed after a preset time interval after the air conditioner is powered on.

[0070] The combustible gas concentration can be specifically detected by the combustible gas sensor mentioned above, and the combustible gas concentration can be specifically obtained through the data currently detected by the combustible gas sensor.

[0071] Step S20, when the combustible gas concentration is greater than a preset concentration, controlling the fresh air device to operate so that the air in the target space where the environmental conditioning equipment is located is discharged outdoors through the fresh air device.

[0072] In this embodiment, the target space here is the first space mentioned above. In other embodiments, when the indoor space is not divided into the first space and the second space, when the fresh air outlet is directly connected to the indoor space, the target space can also be directly the indoor space where the environmental conditioning device is located.

[0073] The preset concentration is a critical value for distinguishing whether the air conditioner has a risk of refrigerant leakage. In this embodiment, the preset concentration is a preset fixed concentration value. In other embodiments, the preset concentration can also be obtained according to the current temperature value of the target space, and the specific preset concentration can be negatively correlated with the temperature value. In other words, the lower the temperature value, the higher the preset concentration can be, and the higher the temperature value, the lower the preset concentration can be.

[0074] Specifically, the fresh air device may have a first operating mode and a second operating mode, in which the fresh air device introduces fresh air into the room in the first operating mode, and in which the fresh air device exhausts fresh air outdoors in the second operating mode. The flow direction of the air in the fresh air device is different in the first operating mode and the second operating mode. Specifically, the fresh air device may be switched in different operating modes based on the switching of the rotation direction of the fresh air fan, for example, the fresh air fan is provided with a first rotation direction and a second rotation direction, and the fresh air fan introduces fresh air into the room when it runs in the first rotation direction, and exhausts indoor air outdoors when it runs in the second rotation direction. In addition, the fresh air device may also be switched in different operating modes based on the position or state change of a flow direction switching component (such as the above-mentioned switch component) provided in the air duct, for example, the flow direction switching component has a first operating state and a second operating device, and the flow direction switching component introduces fresh air into the room when it runs in the first operating state, and exhausts indoor air outdoors when it runs in the second operating state.

[0075] A control method for an environmental conditioning device proposed in an embodiment of the present invention is based on the environmental conditioning device including an air conditioner and a fresh air device. When the concentration of combustible gas in the indoor air duct of the air conditioner is greater than a preset concentration, the method indicates that the air conditioner has a risk of refrigerant leakage. At this time, the fresh air device is used to discharge the air in the target space where the environmental conditioning device is located to the outdoors, avoiding safety accidents such as combustion or explosion caused by excessive concentration of combustible gas in the target space, thereby improving the safety of the air conditioner.

[0076] Further, based on the above embodiment, another embodiment of the control method of the environmental conditioning device of the present application is proposed. In this embodiment, the fresh air device is provided with an indoor air outlet, a fresh air inlet, a fresh air outlet connected to the indoor air duct, a first air duct connecting the fresh air outlet and the fresh air inlet, and a second air duct connecting the indoor air outlet and the fresh air outlet. The fresh air device also includes a switch component and a fresh air fan provided in the second air duct. Figure 5 When the concentration of the combustible gas is greater than a preset concentration, the step of controlling the fresh air device to operate so that the air in the indoor space is discharged outdoors through the fresh air device comprises:

[0077] Step S21, when the combustible gas concentration is greater than a preset concentration, the fresh air fan is controlled to operate and the switch assembly is controlled to operate in a first state, so that the fresh air outlet is closed and the air in the target space is discharged outdoors through the indoor air outlet, the second air duct, the first air duct and the fresh air inlet in sequence.

[0078] In this embodiment, a first vent and a second vent are provided between the first air duct and the second air duct, the first vent is provided corresponding to the fresh air outlet, the second vent is provided corresponding to the fresh air inlet, and the switch assembly includes a first switch module, a second switch module and a third switch module. Specifically, the second vent and the indoor air outlet are provided on the air inlet side of the fresh air fan, and the fresh air outlet is provided on the air outlet side of the fresh air fan. The first switch module is controlled to operate in a first sub-state, the second switch module is controlled to operate in a second sub-state, and the third switch module is controlled to operate in a third sub-state; the first state includes the first sub-state, the second sub-state and the third sub-state, the fresh air outlet is closed and the first vent is opened in the first sub-state, the indoor air outlet is opened in the second sub-state, and the second vent is closed in the third sub-state. Based on this, the fresh air fan drives the air to pass through the indoor air outlet, the second air duct, the first vent, the first air duct and the fresh air inlet in sequence and then be discharged outdoors. The specific path is as follows: Figure 2 (a).

[0079] In addition to the first switch module, the second switch module and the third switch module, the switch assembly may also include a fourth switch module disposed at the fresh air inlet in other embodiments. Alternatively, in other embodiments, the first switch module and the second switch module may also be combined into a fourth switch module, and the fourth switch module may be movable between the indoor air outlet and the fresh air outlet. When the switch assembly operates in the first state, the fourth switch module may be movable to a position closing the fresh air outlet and be spaced apart from the indoor air outlet.

[0080] In this embodiment, the switch assembly cooperates with the operation of the fresh air fan to achieve the fixed direction of the fresh air fan, and the state control of the switch assembly can be used to realize that the fresh air device can discharge the indoor air containing flammable refrigerant to the outside. Among them, based on the duct structure of the first duct and the second duct, the first switch module, the second switch module and the third switch module cooperate to achieve that the air with explosion risk in the target space can be quickly discharged to the outside.

[0081] In other embodiments, when the concentration of the combustible gas is greater than a preset concentration, the fresh air fan can also be controlled to operate and the switch assembly can be controlled to operate in a third state, so that the fresh air outlet is opened and the air in the indoor air duct passes through the indoor air outlet, the second air duct, the first air duct and the fresh air inlet in sequence and is discharged outdoors.

[0082] In other embodiments, the two opposite sides in the airflow direction when the fresh air fan is turned on are defined as a first side and a second side, the indoor air inlet and the fresh air outlet can be set on the first side, and the fresh air inlet can be set on the second side. When the concentration of the combustible gas is greater than the preset concentration, the fresh air fan can be controlled to operate in a first direction to drive the indoor air into the fresh air device from the indoor air inlet and be discharged to the outside from the fresh air inlet.

[0083] Further, in this embodiment, the step of controlling the operation of the fresh air device so that the air in the indoor space is discharged outdoors through the fresh air device includes: determining a concentration difference between the combustible gas concentration and the preset concentration;

[0084] When the concentration difference is less than or equal to the preset concentration difference, the step of controlling the fresh air fan to operate and controlling the switch component to operate in the first state is performed, so that the fresh air outlet is closed and the air in the target space is discharged outdoors through the indoor air outlet, the second air duct, the first air duct and the fresh air inlet in sequence;

[0085] When the concentration difference is greater than the preset concentration difference, the fresh air fan is controlled to operate and the switch component is controlled to operate in a third state, so that the fresh air outlet is opened, the air in the target space is discharged outdoors through the indoor air outlet, the second air duct, the first air duct and the fresh air inlet in sequence, and the air in the indoor air duct is discharged outdoors through the second air duct, the first air duct and the fresh air inlet in sequence.

[0086] The preset concentration difference is specifically a critical value for distinguishing the risk of refrigerant leakage of the air conditioner.

[0087] Specifically, when the switch assembly includes the above-mentioned first switch module, second switch module and third switch module, the first switch module can operate in the seventh sub-state, the second switch module operates in the fifth sub-state and the third switch module operates in the sixth sub-state, and the third state includes the seventh sub-state, the fifth sub-state and the sixth sub-state, wherein the fresh air outlet and the first channel opening are both open in the seventh sub-state. Specifically, the target position of the first switch module in the seventh sub-state can be determined according to the concentration difference, and the target position is different when the concentration difference is different. The target position is between the first position and the second position, the first position is the position when the first switch module closes the fresh air outlet, and the second position is the position when the first switch module closes the first vent.

[0088] If the concentration difference is less than or equal to the preset concentration difference, it indicates that the leakage risk is small and the possibility of safety accidents such as combustion and explosion is low. At this time, closing the fresh air outlet will help speed up the efficiency of discharging air mixed with flammable refrigerant in the target space to the outside, and can avoid the indoor heat loss caused by the discharge of air in the indoor environment to the outside, thereby improving the operating safety of the air conditioner while ensuring indoor comfort; if the concentration difference is greater than the preset concentration difference, it indicates that the leakage risk is large and the possibility of safety accidents such as combustion and explosion is high. At this time, opening the fresh air outlet allows the high concentration of flammable refrigerant in the indoor air duct and the flammable refrigerant in the target space to be quickly discharged to the outside, thereby further improving the safety of the air conditioner.

[0089] Further, based on any of the above embodiments, another embodiment of the control method of the environmental conditioning device of the present application is proposed. Figure 6 , after step S10, further comprising:

[0090] Step S30, when the combustible gas concentration is less than or equal to the preset concentration, the fresh air fan is controlled to operate and the switch component is controlled to operate in a second state, so that the outdoor fresh air is sequentially delivered into the indoor space through the fresh air inlet, the first air duct, the second air duct and the fresh air outlet.

[0091] In this embodiment, a first vent and a second vent are provided between the first air duct and the second air duct, the first vent is provided corresponding to the fresh air outlet, the second vent is provided corresponding to the fresh air inlet, the switch assembly includes a first switch module, a second switch module and a third switch module, the first switch module is controlled to operate in a fourth sub-state, the second switch module is controlled to operate in a fifth sub-state, and the third switch module is controlled to operate in a sixth sub-state;

[0092] The second state includes the fourth sub-state, the fifth sub-state and the sixth sub-state. In the fourth sub-state, the fresh air outlet is opened and the first vent is closed. In the fifth sub-state, the indoor vent is closed. In the sixth sub-state, the second vent is opened. Based on this, the fresh air fan drives the air to pass through the fresh air inlet, the first duct, the second vent, the second duct and the fresh air outlet in sequence and then into the room. The specific path is as follows: Figure 2 (b).

[0093] In other embodiments, the switch assembly may include a fourth switch module disposed at the fresh air inlet in addition to the first switch module, the second switch module, and the third switch module. Alternatively, in other embodiments, the first switch module and the second switch module may be combined into a fourth switch module, and the fourth switch module may be movable between the indoor air outlet and the fresh air outlet. When the switch assembly operates in the second state, the fourth switch module may be movable to a position closing the indoor air outlet and spaced apart from the fresh air outlet.

[0094] In other embodiments, the two opposite sides in the airflow direction when the fresh air fan is turned on are defined as a first side and a second side, the indoor air inlet and the fresh air outlet can be set on the first side, and the fresh air inlet can be set on the second side. When the concentration of the combustible gas is less than or equal to the preset concentration, the fresh air fan can be controlled to operate in a second direction to drive the indoor air into the fresh air device from the fresh air inlet and be discharged to the outside from the fresh air outlet.

[0095] Further, based on any of the above embodiments, another embodiment of the control method of the environmental conditioning device of the present application is proposed. In this embodiment, the step of controlling the operation of the fresh air fan includes: controlling the fresh air fan to operate at a speed greater than a preset speed.

[0096] In this embodiment, the fresh air fan operates at a maximum speed, which is greater than a preset speed. In other embodiments, the fresh air fan may also operate at a speed greater than the preset speed and less than the maximum speed.

[0097] Specifically, the preset rotation speed may be 70% of the maximum rotation speed.

[0098] In this embodiment, the fresh air fan operates at a speed greater than a preset speed, that is, the fresh air fan operates at a high speed, which is beneficial to improving the efficiency of discharging the flammable refrigerant to the outside.

[0099] Specifically, in this embodiment, the step of controlling the fresh air fan to operate at a speed greater than a preset speed includes: determining the concentration difference between the combustible gas concentration and the preset concentration; determining a target speed within a speed range greater than or equal to the preset speed based on the concentration difference; and controlling the fresh air fan to operate at the target speed.

[0100] Among them, different concentration differences correspond to different target speeds. The concentration difference is positively correlated with the target speed. Specifically, a correspondence between the concentration difference and the target speed can be established in advance, and the correspondence may include a mapping relationship, a calculation formula, and the like. Based on the correspondence, the target speed corresponding to the current concentration difference can be determined within the speed range. For example, a speed adjustment value can be determined based on the concentration difference, and the preset speed can be adjusted according to the speed adjustment value to obtain the target speed.

[0101] Furthermore, the correspondence between the concentration difference and the target speed can be obtained according to the current air pressure value of the target space, and different air pressure values ​​can correspond to different correspondences. In this embodiment, more than one correspondence between the concentration difference and the target speed can be preset, and the target correspondence is determined in more than one correspondence according to the air pressure value, and the target speed corresponding to the current concentration difference is determined based on the target correspondence.

[0102] In this embodiment, the target speed of the fresh air fan is determined based on the concentration difference, which is conducive to ensuring that the operation of the fresh air fan is accurately matched with the leakage risk of the flammable refrigerant, ensuring the safety of the air conditioner while avoiding the entry of outdoor pollutants into the room due to indoor negative pressure.

[0103] Further, based on any of the above embodiments, another embodiment of the control method of the environment conditioning device of the present application is proposed. In this embodiment, before the step of controlling the operation of the fresh air device so that the air of the target space where the environment conditioning device is located is discharged outdoors through the fresh air device, it also includes:

[0104] When the combustible gas concentration is greater than a preset concentration, the load in the air conditioner is controlled to be turned off; and / or, when the combustible gas concentration is greater than a preset concentration, the environmental conditioning device is controlled to output a prompt message.

[0105] The load here may include a compressor and / or an indoor fan of an air conditioner, etc.

[0106] The prompt information may be in the form of text information, image information, sound information and / or light information, etc.

[0107] In this embodiment, load shutdown is beneficial to further avoid explosion accidents during the operation of the air conditioner, and further improve the safety of the air conditioner. In addition, the output of the prompt information can prompt the user to check whether there is a refrigerant leak in the air conditioner, thereby further improving the safety of the air conditioner.

[0108] In addition, an embodiment of the present invention further proposes a storage medium, on which a control program of an environmental conditioning device is stored. When the control program of the environmental conditioning device is executed by a processor, the relevant steps of any embodiment of the control method of the environmental conditioning device as described above are implemented.

[0109] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0110] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0111] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, an environmental conditioning device, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0112] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A control method for an environmental conditioning device, characterized in that: The environment conditioning device comprises an air conditioner and a fresh air device. The indoor environment where the environment conditioning device is located has a first space and a second space separated. The first space is used to install the environment conditioning device, and the second space is the space required to be regulated by the environment conditioning device. The air conditioner comprises a shell, an indoor air duct is arranged in the shell, the shell is provided with an indoor air outlet and an indoor return air outlet connected to the indoor environment, the indoor return air outlet is connected to the second space through a pipeline, the fresh air device is provided with an indoor air outlet, a fresh air inlet, a fresh air outlet connected to the indoor air duct, a first air duct connecting the fresh air outlet and the fresh air inlet, and a second air duct connecting the indoor air outlet and the fresh air outlet, the indoor air outlet is connected to the first space, the fresh air device also comprises a switch assembly and a fresh air fan arranged in the second air duct, and the control method of the environment conditioning device comprises the following steps: Obtaining the combustible gas concentration in the indoor air duct of the air conditioner; When the concentration of the combustible gas is greater than a preset concentration, the fresh air device is controlled to operate so that the air of the target space where the environmental conditioning device is located is discharged outdoors through the fresh air device, and the target space is the first space; The step of controlling the operation of the fresh air device so that the air in the indoor space is discharged outdoors through the fresh air device comprises: The fresh air fan is controlled to operate and the switch assembly is controlled to operate in a first state so that the fresh air outlet is closed and the air in the target space is discharged outdoors through the indoor air outlet, the second air duct, the first air duct and the fresh air inlet in sequence.

2. The control method of the environmental conditioning device according to claim 1, characterized in that: A first vent and a second vent are provided between the first air duct and the second air duct, the first vent is provided corresponding to the fresh air outlet, and the second vent is provided corresponding to the fresh air inlet, the switch assembly includes a first switch module, a second switch module and a third switch module, and the step of controlling the switch assembly to operate in the first state includes: Controlling the first switch module to operate in a first sub-state, controlling the second switch module to operate in a second sub-state, and controlling the third switch module to operate in a third sub-state; The first state includes the first sub-state, the second sub-state and the third sub-state. In the first sub-state, the fresh air outlet is closed and the first vent is opened. In the second sub-state, the indoor vent is opened. In the third sub-state, the second vent is closed.

3. The control method of the environmental conditioning device according to claim 1, characterized in that: The step of controlling the operation of the fresh air device so that the air in the indoor space is discharged outdoors through the fresh air device comprises: Determining a concentration difference between the combustible gas concentration and the preset concentration; When the concentration difference is less than or equal to the preset concentration difference, the step of controlling the fresh air fan to operate and controlling the switch component to operate in the first state is performed, so that the fresh air outlet is closed and the air in the target space is discharged outdoors through the indoor air outlet, the second air duct, the first air duct and the fresh air inlet in sequence; When the concentration difference is greater than the preset concentration difference, the fresh air fan is controlled to operate and the switch component is controlled to operate in a third state, so that the fresh air outlet is opened, the air in the target space is discharged outdoors through the indoor air outlet, the second air duct, the first air duct and the fresh air inlet in sequence, and the air in the indoor air duct is discharged outdoors through the second air duct, the first air duct and the fresh air inlet in sequence.

4. The control method of the environmental conditioning device according to claim 1, characterized in that: The step of controlling the operation of the fresh air fan comprises: The fresh air fan is controlled to run at a speed greater than a preset speed.

5. The control method of the environment conditioning device according to claim 4, characterized in that: The step of controlling the fresh air fan to operate at a speed greater than a preset speed includes: Determining a concentration difference between the combustible gas concentration and the preset concentration; Determining a target speed within a speed range greater than or equal to the preset speed according to the concentration difference; Control the fresh air fan to operate at the target speed.

6. The control method of the environment conditioning device according to claim 1, characterized in that: After the step of obtaining the combustible gas concentration of the indoor air duct of the air conditioner, the method further includes: When the combustible gas concentration is less than or equal to the preset concentration, the fresh air fan is controlled to operate and the switch component is controlled to operate in a second state, so that outdoor fresh air is delivered into the indoor space through the fresh air inlet, the first air duct, the second air duct and the fresh air outlet in sequence.

7. The control method of the environment conditioning device according to claim 6, characterized in that: A first vent and a second vent are provided between the first air duct and the second air duct, the first vent is provided corresponding to the fresh air outlet, and the second vent is provided corresponding to the fresh air inlet, the switch assembly includes a first switch module, a second switch module and a third switch module, and the step of controlling the switch assembly to operate in the second state includes: Controlling the first switch module to operate in a fourth sub-state, controlling the second switch module to operate in a fifth sub-state, and controlling the third switch module to operate in a sixth sub-state; Among them, the second state includes the fourth sub-state, the fifth sub-state and the sixth sub-state. In the fourth sub-state, the fresh air outlet is opened and the first vent is closed, in the fifth sub-state, the indoor air outlet is closed, and in the sixth sub-state, the second vent is opened.

8. The control method of the environmental conditioning device according to any one of claims 1 to 7, characterized in that: Before the step of controlling the operation of the fresh air device so that the air of the target space where the environment conditioning device is located is discharged outdoors through the fresh air device, the method further includes: When the combustible gas concentration is greater than a preset concentration, the load in the air conditioner is controlled to be turned off; and / or, when the combustible gas concentration is greater than a preset concentration, the environmental conditioning device is controlled to output a prompt message.

9. An environmental conditioning device, characterized in that: The indoor environment where the environment conditioning device is located has a first space and a second space separated therefrom, the first space is used to install the environment conditioning device, and the second space is a space that the environment conditioning device needs to regulate, and the environment conditioning device includes: An air conditioner, the air conditioner comprising a housing, an indoor air duct being arranged in the housing, the housing being provided with an indoor air outlet and an indoor air return outlet communicating with an indoor environment, the indoor air return outlet being communicated with the second space through a pipeline; A fresh air device, the fresh air device is provided with an indoor air outlet, a fresh air inlet, a fresh air outlet connected to the indoor air duct of the air conditioner, a first air duct connected to the fresh air outlet and the fresh air inlet, and a second air duct connected to the indoor air outlet and the fresh air outlet, the fresh air device further comprising a switch assembly and a fresh air fan provided in the second air duct, the indoor air outlet is connected to the first space; and A control device, the air conditioner and the fresh air device are both connected to the control device, the control device comprises: a memory, a processor and a control program of an environmental conditioning device stored in the memory and executable on the processor, the control program of the environmental conditioning device, when executed by the processor, implements the steps of a control method of an environmental conditioning device as described in any one of claims 1 to 8.

10. A storage medium, characterized in that: The storage medium stores a control program of an environmental conditioning device, and when the control program of the environmental conditioning device is executed by a processor, the steps of the control method of the environmental conditioning device according to any one of claims 1 to 8 are implemented.

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