Electric control box assembly, air conditioner and control method and control device thereof

Abstract

The application relates to the technical field of intelligent household appliances, and discloses an electric control box assembly, an air conditioner and a control method and a control device thereof. The electric control box assembly comprises: a first box body comprising a containing cavity used for placing electrical devices; a cooling flow path arranged in the first box body and used for cooling the containing cavity; an extinguishing flow path in communication with the cooling flow path, the extinguishing flow path comprising a spraying part located in the containing cavity; and a control circuit used for controlling the operating states of the cooling flow path and the extinguishing flow path. The electric control box assembly provided by the application can regulate the temperature in the electric control box by arranging the cooling flow path used for cooling the electrical devices in the electric control box and the extinguishing flow path in communication with the cooling flow path, so as to meet the temperature requirement of stable operation of the electrical devices. Moreover, the extinguishing operation can be performed in time in the case that a fire occurs in the electric control box, and the safety and reliability during use are greatly improved.

Description

Technical Field

[0001] This application relates to the field of smart home appliance technology, such as an electrical control box assembly, an air conditioner and its control method and control device. Background Technology

[0002] As a core component of the equipment, the electrical control box contains various electrical components. During equipment operation, these components generate heat, and overheating of the control box can damage these components or even cause a fire.

[0003] In related technologies, refrigerant piping is installed inside the electrical control box. The flow of refrigerant regulates the temperature inside the control box, thereby improving the operational stability of the electrical components within the box.

[0004] The electrical control box using the cooling method described in the above embodiment has the following problems:

[0005] In related technologies, when electrical components in the control box are damaged or aged, resulting in arcing, the control box may catch fire, posing a significant safety hazard.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] The electrical control box assembly, air conditioner, and control method and device provided in this disclosure can extinguish the fire in the electrical control box in the event of a fire, thereby improving safety.

[0009] In some embodiments, the electrical control box assembly includes: a first housing including a receiving cavity for placing electrical components; a cooling flow path disposed in the first housing for cooling the receiving cavity; a fire extinguishing flow path connected to the cooling flow path, the fire extinguishing flow path including a spray section located within the receiving cavity; and a control circuit for controlling the operating states of the cooling flow path and the fire extinguishing flow path.

[0010] In some embodiments, an air conditioner is provided, comprising: a refrigeration system including a compressor, a four-way reversing valve, an outdoor heat exchanger, a throttling device, and an indoor heat exchanger connected in sequence to form a refrigerant flow path; and an electrical control box assembly as described in any of the preceding embodiments, wherein the cooling flow path and the throttling device are arranged in parallel; wherein the control circuit is used to control the operating state of the cooling flow path and the fire extinguishing flow path according to the temperature inside the containment cavity.

[0011] In some embodiments, a control method for an air conditioner is provided for an air conditioner as described in any of the foregoing embodiments. The control method includes: acquiring the temperature inside the containment cavity; when the temperature is greater than or equal to a first threshold, controlling both the cooling flow path and the fire extinguishing flow path to be open; when the temperature is less than the first threshold and greater than or equal to a second threshold, controlling the cooling flow path to be open and controlling the fire extinguishing flow path to be closed.

[0012] In some embodiments, a control device for an air conditioner is provided, including a processor and a memory storing program instructions, the processor being configured to execute the control method for the air conditioner as described in any of the foregoing embodiments when executing the program instructions.

[0013] The electrical control box assembly, air conditioner, control method, and control device provided in this disclosure can achieve the following technical effects:

[0014] The electrical control box assembly disclosed herein includes: a first housing, a cooling flow path, a fire extinguishing flow path, and a control circuit. The first housing includes a cavity for housing electrical components. The cooling flow path cools the electrical components within the first housing, maintaining the temperature within the cavity within a range suitable for stable operation. The fire extinguishing flow path is connected to the cooling flow path, and its spray section is located within the cavity. The fire extinguishing flow path guides the heat exchange medium from the cooling flow path to the spray section, which then sprays the heat exchange medium into the cavity. Thus, in the event of a fire within the cavity, the fire extinguishing flow path sprays the heat exchange medium from the cooling flow path into the cavity through the spray section, extinguishing the fire in the electrical control box. Furthermore, this disclosure includes separate control circuits for controlling the cooling flow path and the fire extinguishing flow path, enabling independent control of these two flow paths, avoiding interference from the electrical components within the first housing, and improving operational stability.

[0015] The electrical control box assembly disclosed herein regulates the temperature inside the control box by incorporating a cooling flow path for cooling the electrical components within the box, and a fire extinguishing flow path connected to the cooling flow path, thereby meeting the temperature requirements for stable operation of the electrical components. Furthermore, it enables timely fire extinguishing operations in the event of a fire inside the control box, significantly improving safety and reliability during use.

[0016] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0017] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0018] Figure 1 This is a schematic diagram of the structure of an electrical control box assembly provided in one embodiment of the present disclosure;

[0019] Figure 2 yes Figure 1 A structural schematic diagram of another angle of the embodiment shown;

[0020] Figure 3 This is a schematic diagram of an air conditioner system provided in one embodiment of the present disclosure;

[0021] Figure 4 yes Figure 3 The illustrated embodiment is a schematic diagram of the cooling operation in cooling mode.

[0022] Figure 5 yes Figure 3 The illustrated embodiment is a schematic diagram of fire extinguishing operation in cooling mode.

[0023] Figure 6 yes Figure 3 The illustrated embodiment is a schematic diagram of cooling operation during heating mode.

[0024] Figure 7 yes Figure 3 The illustrated embodiment is a schematic diagram of fire extinguishing operation during heating mode.

[0025] Figure 8 This is a schematic diagram of the structure of the electrical control box assembly provided in another embodiment of the present disclosure;

[0026] Figure 9 yes Figure 8 A structural schematic diagram of another angle of the embodiment shown;

[0027] Figure 10 yes Figure 8 A schematic diagram of the three-position four-way valve in the embodiment shown;

[0028] Figure 11 This is a schematic diagram of an air conditioner system provided in another embodiment of this disclosure;

[0029] Figure 12 yes Figure 11 The illustrated embodiment is a schematic diagram of the cooling operation in cooling mode.

[0030] Figure 13 yes Figure 11 The illustrated embodiment is a schematic diagram of fire extinguishing operation in cooling mode.

[0031] Figure 14 yes Figure 11 The illustrated embodiment is a schematic diagram of cooling operation during heating mode.

[0032] Figure 15 yes Figure 11 The illustrated embodiment is a schematic diagram of fire extinguishing operation during heating mode.

[0033] Figure 16 This is a schematic flowchart of an air conditioner control method provided in one embodiment of the present disclosure;

[0034] Figure 17 This is a schematic flowchart of a control method for an air conditioner provided in another embodiment of the present disclosure;

[0035] Figure 18 This is a flowchart illustrating a control method for an air conditioner provided in yet another embodiment of this disclosure;

[0036] Figure 19 This is a system block diagram of an air conditioner control device provided in one embodiment of the present disclosure.

[0037] Figure label:

[0038] 1: Air conditioner;

[0039] 100 Electrical control box assembly; 110 First enclosure; 102 Receiving cavity; 104 Temperature sensor;

[0040] 120 Cooling flow path; 121 Cooling pipeline; 122 First control terminal; 123 First throttling element; 124 First shut-off valve; 125 First flow regulating valve; 126 Second control terminal; 127 Second throttling element; 128 Second shut-off valve; 129 Second flow regulating valve; 130 Three-position four-way valve; 131 First station; 132 Second station; 133 Stationary station;

[0041] 140 Fire extinguishing flow path; 141 Fire extinguishing pipeline; 142 Valve body; 143 First flow path; 144 First valve body; 145 Second flow path; 146 Second valve body; 148 Sprinkler unit;

[0042] 150 Second enclosure; 152 Control circuit;

[0043] 200 Refrigeration system; 202 Compressor; 204 Four-way reversing valve; 206 Outdoor heat exchanger; 208 Throttling device; 210 Indoor heat exchanger;

[0044] 1900: Control device; 1902: Processor; 1904: Memory; 1906: Communication interface; 1908: Bus. Detailed Implementation

[0045] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0046] In some embodiments, combined with Figure 1 , Figure 2 , Figure 8 and Figure 9 As shown, the electrical control box assembly 100 includes a first housing 110, a cooling flow path 120, a fire extinguishing flow path 140, and a control circuit 152. The first housing 110 includes a receiving cavity 102 for housing electrical components. The cooling flow path 120 is disposed in the first housing 110 and is used to cool the receiving cavity 102. The fire extinguishing flow path 140 is connected to the cooling flow path 120. The fire extinguishing flow path 140 includes a spray section 148 located within the receiving cavity 102. The control circuit 152 controls the operating status of the cooling flow path 120 and the fire extinguishing flow path 140.

[0047] The electrical control box assembly 100 provided in this disclosure includes: a first housing 110, a cooling flow path 120, a fire extinguishing flow path 140, and a control circuit 152. The first housing 110 includes a receiving cavity 102 for mounting electrical components. The cooling flow path 120 cools the electrical components within the first housing 110, maintaining the temperature within the receiving cavity 102 within a range suitable for stable operation of the electrical components. The fire extinguishing flow path 140 is connected to the cooling flow path 120, and a spray section 148 of the fire extinguishing flow path 140 is disposed within the receiving cavity 102. The fire extinguishing flow path 140 guides the heat exchange medium within the cooling flow path 120 to the spray section 148, enabling the spraying of the heat exchange medium into the receiving cavity 102. Thus, in the event of a fire within the containment cavity 102, the heat exchange medium within the cooling flow path 120 is sprayed onto the containment cavity 102 via the spray section 148 through the fire extinguishing flow path 140, thereby extinguishing the fire in the electrical control box. Furthermore, this disclosure includes a separate control circuit 152 for controlling both the cooling flow path 120 and the fire extinguishing flow path 140, enabling independent control of these two flow paths, avoiding interference from the electrical components within the first housing 110, and improving operational stability.

[0048] The electrical control box assembly provided in this disclosure regulates the temperature within the first enclosure 110 by incorporating a cooling flow path 120 for cooling the electrical components inside the control box, and a fire extinguishing flow path 140 connected to the cooling flow path 120, thereby meeting the temperature requirements for stable operation of the electrical components. Furthermore, it enables timely fire extinguishing operations in the event of a fire in the control box, significantly improving safety and reliability during use.

[0049] Optionally, combined Figure 1 , Figure 2 , Figure 8 and Figure 9 As shown, the electrical control box assembly 100 also includes a temperature sensor 104. The temperature sensor 104 is disposed within the receiving cavity 102 and is used to detect the temperature within the receiving cavity 102. A control circuit 152 is connected to the temperature sensor 104. The control circuit 152 receives the temperature within the receiving cavity 102. Based on the temperature and a set threshold, it controls the operating state of the cooling flow path 120 and the fire extinguishing flow path 140 to cool the first enclosure 110 and improve heat dissipation.

[0050] Optionally, combined Figure 1 , Figure 2 , Figure 8 and Figure 9 As shown, the electrical control box assembly 100 also includes a second housing 150. The second housing 150 is independently configured with respect to the first housing 110, and the control circuit 152 is disposed within the second housing 150.

[0051] In this embodiment, the second enclosure 150 is disposed independently of the first enclosure 110. A control circuit 152 for controlling the cooling flow path 120 and the fire extinguishing flow path 140 is disposed within the second enclosure 150. By separating the control circuit 152 from the first enclosure 110, the heat generated by the electrical components within the first enclosure 110 will not affect the control circuit 152, and a malfunction in the first enclosure 110 will not affect the operation of the control circuit 152. This improves the stability of the control circuit 152's control over the cooling flow path 120 and the fire extinguishing flow path 140, thereby enabling continuous temperature regulation within the first enclosure 110. Even if a malfunction occurs within the first enclosure 110, the control circuit 152 can still operate normally, improving safety and reducing the risk of failure of the first enclosure 110.

[0052] Optionally, the first enclosure 110 serves as the main control enclosure of the electrical control box assembly 100, and the electrical components inside the main control enclosure are various electrical components that control the operation of the equipment. The second enclosure 150 serves as the secondary control enclosure of the electrical control box assembly 100, and the control circuit 152 inside the second enclosure 150 is used to control the operating status of the cooling flow path 120 and the fire extinguishing flow path 140. By setting the first enclosure 110 and the second enclosure 150 independently, and with the low-voltage control circuit 152 installed in the second enclosure 150, there is no possibility of fire. The control circuit 152 only receives the signal from the temperature sensor 104 in the first enclosure 110 and outputs signals to control the cooling flow path 120 and the fire extinguishing flow path 140. In the event of abnormal temperature inside the first enclosure 110, the operating status of the cooling flow path 120 and the fire extinguishing flow path 140 can be controlled in a timely manner, improving the safety of use. This improves the stability of the operation of the control circuit 152 and also improves the stability of the control of the cooling flow path 120 and the fire extinguishing flow path 140.

[0053] Optionally, combined Figure 1 , Figure 2 , Figure 8 and Figure 9 As shown, the second housing 150 is connected to the outer wall of the first housing 110, which improves assembly efficiency.

[0054] Optionally, the second enclosure 150 is set separately from the first enclosure 110, which further improves the stability of equipment operation and reduces the impact of the first enclosure 110 on the control circuit 152.

[0055] Optionally, the fire extinguishing flow path 140 also includes a fire extinguishing pipe 141 and a valve body 142. One end of the fire extinguishing pipe 141 is connected to the cooling flow path 120, and the other end of the fire extinguishing pipe 141 passes through the first housing 110. The spray unit 148 is connected to the other end of the fire extinguishing pipe 141. The valve body 142 is disposed on the fire extinguishing pipe 141 and located outside the first housing 110. The valve body 142 is used to control the opening or closing of the fire extinguishing pipe 141.

[0056] In this embodiment, the two ends of the fire extinguishing pipeline 141 are connected to the cooling flow path 120 and the receiving cavity 102, respectively. A valve body 142 is disposed on the fire extinguishing pipeline 141. The valve body 142 is used to control the opening or closing of the fire extinguishing pipeline 141. When the cooling flow path 120 is in a conductive state, the valve body 142 is opened, and the heat exchange medium in the cooling flow path 120 enters the fire extinguishing pipeline 141, and is sprayed into the receiving cavity 102 through the spray section 148. By providing the fire extinguishing pipeline 141 and the valve body 142, in the event of a fire in the first housing 110, fire suppression can be carried out inside the receiving cavity 102, thereby improving operational safety.

[0057] Optionally, combined Figure 1 , Figure 2 , Figure 8 and Figure 9 As shown, the cooling flow path 120 includes a cooling pipe 121, a first control terminal 122, and a second control terminal 126. The cooling pipe 121 is located in the first housing 110 and is used to cool the receiving cavity 102. The fire extinguishing pipe 141 is connected to the cooling pipe 121. The first control terminal 122 is located at one end of the cooling pipe 121, outside the first housing 110. The second control terminal 126 is located at the other end of the cooling pipe 121, outside the first housing 110. The control circuit 152 is used to control the operating states of the first control terminal 122 and the second control terminal 126.

[0058] In this embodiment, a cooling pipe 121 is wound around the first housing 110 to dissipate heat from the receiving cavity 102 and reduce the temperature inside the cavity. The cooling pipe 121 includes a first control terminal 122 and a second control terminal 126 located outside the first housing 110. The operating states of the first control terminal 122 and the second control terminal 126 are controlled by a control circuit 152 to control the conduction state of the cooling flow path 120.

[0059] Furthermore, by placing the first control terminal 122 and the second control terminal 126 outside the first housing 110, all control components used to control the operating status of the cooling flow path 120 can be located outside the first housing 110. When overheating occurs inside the first housing 110, the first control terminal 122 and the second control terminal 126 will not be damaged by the excessive temperature and can maintain normal operation, thereby regulating the temperature inside the first housing 110 and improving the stability and safety of the first housing 110's operation.

[0060] Optionally, the first control terminal 122 includes a first throttling element 123 and a first shut-off valve 124 arranged in parallel. The second control terminal 126 includes a second throttling element 127 and a second shut-off valve 128 arranged in parallel.

[0061] In this embodiment, the flow direction of the heat exchange medium passing through the first control terminal 122 is guided by the first throttling element 123 and the first shut-off valve 124. The flow direction of the heat exchange medium passing through the second control terminal 126 is guided by the second throttling element 127 and the second shut-off valve 128. This allows for cooling of the first housing 110 under different operating scenarios to meet the temperature requirements within the containment cavity 102, thereby improving the stability of the electrical components.

[0062] Optionally, combined Figure 1 , Figure 2 As shown, there are multiple fire extinguishing flow paths 140, and fire extinguishing flow paths 140 are respectively provided at both ends of the cooling flow path 120.

[0063] In this embodiment, multiple fire extinguishing flow paths 140 correspond to multiple spray sections 148. By distributing multiple spray sections 148 within the receiving cavity 102, the spraying area is expanded, improving the effective control of fire situations and enhancing safety during use.

[0064] Optionally, combined Figure 8 , Figure 9 and Figure 10 As shown, the cooling flow path 120 also includes a three-position four-way valve 130. The three-position four-way valve 130 includes a first port P, a second port T, a third port A, and a fourth port B. The first port P and the second port T are respectively connected to the first control terminal 122 and the second control terminal 126. The third port A and the fourth port B are respectively connected to both ends of the cooling pipe 121. One end of the fire extinguishing pipe 141 is connected to the third port A.

[0065] The three-position four-way valve 130 also includes a first station 131, a stationary station 133, and a second station 132.

[0066] The first workstation 131 is connected to the first and fourth interfaces, and the second and third interfaces are connected.

[0067] The second station 132 is connected to the first and third interfaces, and the second and fourth interfaces are also connected. When in the stationary station 133, the cooling pipe 121 is in an open circuit state. The control circuit 152 is connected to the three-position four-way valve 130, and the control circuit 152 is used to control the working position of the three-position four-way valve 130.

[0068] In this embodiment, a three-position four-way valve 130 is installed on the cooling pipe 121, allowing the inlet and outlet positions of the cooling pipe 121 to be fixed. Because the temperature of the heat exchange medium at the inlet of the cooling pipe 121 is lower than that at the outlet, the cooling effect at the inlet is better. The electrical components within the first housing 110 are arranged according to their heat generation, from highest to lowest, along the flow direction of the heat exchange medium in the cooling pipe 121. This improves the heat dissipation effect on the electrical components, thereby enhancing operational stability and reducing the risk of failure.

[0069] Optionally, combined Figure 1 , Figure 2 , Figure 8 and Figure 9 As shown, the first control terminal 122 also includes a first flow regulating valve 125, which is disposed at one end of the cooling pipeline 121. The flow rate of the heat exchange medium in the cooling flow path 120 is regulated by setting the first flow regulating valve 125.

[0070] Optionally, combined Figure 1 , Figure 2 , Figure 8 and Figure 9 As shown, the second control terminal 126 also includes a second flow regulating valve 129, which is located at the other end of the cooling pipeline 121. The flow rate of the heat exchange medium in the cooling flow path 120 is regulated by setting the second flow regulating valve 129.

[0071] The opening degree of both the first flow regulating valve 125 and the second flow regulating valve 129 is proportional to the temperature inside the receiving cavity 102. The higher the temperature inside the receiving cavity 102, the larger the opening degree, thereby improving the heat dissipation efficiency of the first housing 110. During fire extinguishing control, in conjunction with the operating mode, one of the first control terminal and the second control terminal is controlled to be in the open state, and the other is in the closed state. By setting the first flow regulating valve 125 and the second flow regulating valve 129 at both ends of the cooling pipeline 121, the flow rate of the cooling flow path in the open state can be adjusted to the maximum opening degree, and the regulating valve on the closed state side is controlled to close, thereby improving the fire extinguishing efficiency.

[0072] In some embodiments, combined with Figures 3 to 7 , Figures 11 to 15 As shown, an air conditioner 1 is provided, including a refrigeration system 200 and an electrical control box assembly 100 as described in any of the preceding embodiments. The refrigeration system 200 includes a compressor 202, a four-way reversing valve 204, an outdoor heat exchanger 206, a throttling device 208, and an indoor heat exchanger 210, which are connected in sequence to form a refrigerant flow path. A cooling flow path 120 is arranged in parallel with the throttling device 208. A control circuit 152 is used to control the operating state of the cooling flow path 120 and the fire extinguishing flow path 140 according to the temperature inside the receiving cavity 102.

[0073] This disclosure provides an air conditioner 1 including a refrigeration system 200 and an electrical control box assembly 100. When cooling of the receiving cavity 102 of the first housing 110 is required, the cooling flow path 120 is opened, diverting refrigerant from the refrigerant flow path into the cooling flow path 120 to cool the first housing 110. When cooling of the first housing 110 is not required, the cooling flow path 120 is closed. By connecting the cooling flow path 120 in parallel with the throttling device 208, cooling of the first housing 110 and regulation of the indoor ambient temperature can be achieved simultaneously. In the event of a fire in the receiving cavity 102, with the cooling flow path 120 open, the control circuit 152 controls the fire extinguishing flow path 140 to open, so that the heat exchange medium in the cooling flow path 120 is sprayed into the receiving cavity 102 through the spray section 148 to extinguish the fire in the first housing 110.

[0074] An air conditioner 1 provided in this embodiment regulates the temperature inside the first housing 110 by providing a cooling flow path 120 connected to the refrigeration system 200 and a fire extinguishing flow path 140 connected to the cooling flow path 120, thereby meeting the temperature requirements for stable operation of electrical components. Furthermore, it can promptly extinguish fires in the event of a fire in the electrical control box, greatly improving safety and reliability during use.

[0075] It should be noted that, in this embodiment of the refrigeration system, the refrigerant used is a non-flammable refrigerant.

[0076] In some embodiments, the cooling flow path 120 includes a first control terminal 122 and a second control terminal 126. The first control terminal 122 is connected to the refrigerant flow path located between the outdoor heat exchanger 206 and the throttling device 208, and the second control terminal 126 is connected to the refrigerant flow path located between the throttling device 208 and the indoor heat exchanger 210.

[0077] In some embodiments, combined with Figure 3 The air conditioner 1 shown is combined with Figure 1 and Figure 2The electrical control box assembly 100 shown includes: a first housing 110 and a second housing 150, a cooling flow path 120, and two fire extinguishing flow paths 140. The two fire extinguishing flow paths 140 are a first flow path 143 and a second flow path 145. A first valve body 144 is provided on the first flow path 143. A second valve body 146 is provided on the second flow path 145.

[0078] The first control terminal is connected to the pipe body at one end of the cooling pipe 121 located outside the first housing 110.

[0079] The second control terminal is connected to the other end of the cooling pipe 121 located outside the first housing 110. The first control terminal 122 includes a first throttling element 123 and a first shut-off valve 124 arranged in parallel. The second control terminal 126 includes a second throttling element 127 and a second shut-off valve 128 arranged in parallel. By setting the first throttling element 123 and the second throttling element 127, the pressure and temperature of the passing refrigerant are reduced.

[0080] In some embodiments, when the air conditioner 1 is in cooling mode, the direction of the cooling flow path 120 is determined to be from the first control terminal 122 to the second control terminal 126.

[0081] In some embodiments, both the first throttling element 123 and the second throttling element 127 are electronic expansion valves.

[0082] In cooling mode, the control logic for cooling the first housing 110 includes controlling the opening of the cooling flow path 120 by opening the first throttling element 123 and the second shut-off valve 128, and closing the first shut-off valve 124 and the second throttling element 127. The fire extinguishing flow path 140 remains closed. The refrigerant passes through the compressor 202 and enters the outdoor heat exchanger 206. After flowing out, it splits into two paths: one enters the cooling flow path 120, and the other enters the throttling element 208. The two paths merge and then pass through the indoor heat exchanger 210 to cool the indoor environment before returning to the compressor 202.

[0083] In cooling mode, the control logic for extinguishing the fire in the first housing 110 includes controlling the opening of the cooling flow path 120 and the fire extinguishing flow path 140. This involves: controlling the first throttling element 123 to open to its maximum opening; controlling the second throttling element 127, the first shut-off valve 124, and the second shut-off valve 128 to close; and controlling the first valve body 144 to open and the second valve body 146 to close. The compressor 202's operating frequency is also controlled to its maximum operating frequency. After passing through the outdoor heat exchanger 206, the refrigerant is divided into two paths: one enters the cooling flow path 120 and the fire extinguishing flow path 140 to extinguish the fire in the first housing 110; the other enters the throttling element 208, then passes through the indoor heat exchanger 210 to cool the indoor environment before returning to the compressor 202.

[0084] In some embodiments, the first control terminal 122 further includes a first flow regulating valve 125, and the second control terminal 126 further includes a second flow regulating valve 129. The first throttling element 123 and the second throttling element 127 are capillary tubes.

[0085] Combination Figure 4 As shown in the diagram (arrows indicate refrigerant flow rates), in cooling mode, the control logic for cooling the first housing 110 includes controlling the opening of the cooling flow path 120 by: controlling the opening of the first flow regulating valve 125 and the second flow regulating valve 129, and controlling the closing of the first shut-off valve 124 and the opening of the second shut-off valve 128. After passing through the outdoor heat exchanger 206, the refrigerant is divided into two paths: one enters the cooling flow path 120 to cool the first housing 110, and the other enters the throttling device 208. The two paths merge and then pass through the indoor heat exchanger 210 to cool the indoor environment before returning to the compressor 202. The opening degree of the first flow regulating valve 125 and the second flow regulating valve 129 is proportional to the temperature inside the housing 102.

[0086] Combination Figure 5 As shown in the diagram (arrows indicate refrigerant flow rates), in cooling mode, the control logic for extinguishing the fire in the first housing 110 includes the following steps: controlling the opening of the cooling flow path 120 and the fire extinguishing flow path 140; controlling the opening of the first flow regulating valve 125 to its maximum opening; controlling the closing of the second flow regulating valve 129; controlling the closing of the first shut-off valve 124 and the second shut-off valve 128; and controlling the opening of the first valve body 144 and the closing of the second valve body 146. The operating frequency of the compressor 202 is also controlled to its maximum operating frequency. After passing through the outdoor heat exchanger 206, the refrigerant is divided into two paths: one enters the cooling flow path 120 and the fire extinguishing flow path 140 to extinguish the fire in the first housing 110; the other enters the throttling device 208, then passes through the indoor heat exchanger 210 to cool the indoor environment before returning to the compressor 202.

[0087] In some embodiments, when the air conditioner 1 is in heating mode, the direction of the cooling flow path 120 is determined to be from the second control terminal 126 to the first control terminal 122.

[0088] In some embodiments, both the first throttling element 123 and the second throttling element 127 are electronic expansion valves.

[0089] In heating mode, the control logic for cooling the first housing 110 includes controlling the opening of the cooling flow path 120 by: opening the first shut-off valve 124 and the second throttling element 127, and closing the first throttling element 123 and the second shut-off valve 128. The fire extinguishing flow path 140 is kept closed. After passing through the indoor heat exchanger 210, the refrigerant is divided into two paths: one enters the cooling flow path 120 to cool the first housing 110, and the other enters the throttling element 208. The two paths merge, pass through the outdoor heat exchanger 206, and then return to the compressor 202.

[0090] In heating mode, the control logic for extinguishing the fire in the first housing 110 includes the following steps: controlling the opening of the cooling flow path 120 and the fire extinguishing flow path 140; closing the first shut-off valve 124 and the second shut-off valve 128; opening the second throttling element 127 to its maximum opening; closing the first throttling element 123; and opening the second valve body 146 and closing the first valve body 144. The operating frequency of the compressor 202 is also controlled to its maximum operating frequency. After passing through the indoor heat exchanger 210, the refrigerant is divided into two paths: one enters the cooling flow path 120 and the fire extinguishing flow path 140 for fire extinguishing inside the first housing 110; the other enters the throttling element 208, passes through the outdoor heat exchanger 206, and returns to the compressor 202.

[0091] In some embodiments, the first control terminal 122 further includes a first flow regulating valve 125, and the second control terminal 126 further includes a second flow regulating valve 129. The first flow regulating valve 125 and the second flow regulating valve 129 are respectively disposed at both ends of the cooling pipeline 121. The first throttling element 123 and the second throttling element 127 are capillary tubes.

[0092] Combination Figure 6 As shown in the diagram (arrows indicate refrigerant flow rates), in heating mode, the control logic for cooling the first housing 110 includes controlling the opening of the cooling flow path 120 by: opening the first flow regulating valve 125 and the second flow regulating valve 129, and opening the first shut-off valve 124 and closing the second shut-off valve 128. The fire extinguishing flow path 140 is kept closed. After passing through the indoor heat exchanger 210, the refrigerant is divided into two paths: one enters the cooling flow path 120 to cool the first housing 110, and the other enters the throttling device 208. After the two paths merge, they pass through the outdoor heat exchanger 206 and return to the compressor 202. The opening degree of the first flow regulating valve 125 and the second flow regulating valve 129 is proportional to the temperature inside the housing 102.

[0093] Combination Figure 7As shown in the diagram (arrows indicate refrigerant flow rates), in heating mode, the control logic for extinguishing the fire in the first housing 110 includes the following steps: controlling the cooling flow path 120 and the extinguishing flow path 140 to open; controlling the first flow regulating valve 125 to close and the second flow regulating valve 129 to open to its maximum opening; controlling the first shut-off valve 124 and the second shut-off valve 128 to close; and controlling the second valve body 146 to open and the first valve body 144 to close. The compressor 202's operating frequency is also controlled to its maximum operating frequency. After passing through the indoor heat exchanger 210, the refrigerant is divided into two paths. One path enters the cooling flow path 120 and then splits into two branches. One branch enters both the cooling flow path 120 and the extinguishing flow path 140 to extinguish the fire inside the first housing 110. The other path enters the throttling element 208, passes through the outdoor heat exchanger 206, and then returns to the compressor 202.

[0094] In some embodiments, combined with Figure 11 The air conditioner 1 shown includes, for example: Figure 8 and Figure 9 The electrical control box assembly 100 is shown. The electrical control box assembly 100 includes: a first housing 110 and a second housing 150, a cooling flow path 120, and a fire extinguishing flow path 140. The fire extinguishing flow path 140 includes a valve body 142. The cooling flow path 120 includes: a first control terminal, a second control terminal, and a three-position four-way valve 130. The first control terminal 122 includes a first throttling element 123 and a first shut-off valve 124 connected in parallel. The second control terminal 126 includes a second throttling element 127 and a second shut-off valve 128 connected in parallel. The pressure and temperature of the passing refrigerant are reduced by setting the first throttling element 123 and the second throttling element 127.

[0095] When the air conditioner 1 is in cooling mode, the direction of the cooling flow path 120 is determined to be from the first control terminal 122 to the second control terminal 126.

[0096] In some embodiments, the first throttling element 123 and the second throttling element 127 are electronic expansion valves.

[0097] In the cooling mode, the control logic for cooling the first housing 110 includes controlling the opening of the cooling flow path 120 by: controlling the three-position four-way valve 130 to switch to the second position 132; controlling the first throttling element 123 and the second shut-off valve 128 to open, and the first shut-off valve 124 and the second throttling element 127 to close; and controlling the fire extinguishing flow path 140 to be closed. The refrigerant, after passing through the outdoor heat exchanger 206, is divided into two paths: one enters the cooling flow path 120 to cool the first housing 110, and the other enters the throttling element 208. The two paths merge and then pass through the indoor heat exchanger 210 to cool the indoor environment before returning to the compressor 202.

[0098] In cooling mode, the control logic for extinguishing the fire in the first housing 110 includes the following steps: controlling the cooling flow path 120 and the fire extinguishing flow path 140 to open; controlling the three-position four-way valve 130 to switch to the second position 132; controlling the first throttling element 123 to open to its maximum opening; controlling the second throttling element 127, the first shut-off valve 124, and the second shut-off valve 128 to close; and controlling the valve body 142 to open. The compressor 202's operating frequency is also controlled to its maximum operating frequency. After passing through the outdoor heat exchanger 206, the refrigerant is divided into two paths: one enters the cooling flow path 120 and the fire extinguishing flow path 140 to extinguish the fire in the first housing 110; the other enters the throttling element 208, then passes through the indoor heat exchanger 210 to cool the indoor environment before returning to the compressor 202.

[0099] In some embodiments, the first control terminal 122 further includes a first flow regulating valve 125, and the second control terminal 126 further includes a second flow regulating valve 129. The first flow regulating valve 125 and the second flow regulating valve 129 are respectively disposed at both ends of the cooling pipeline 121. The first throttling element 123 and the second throttling element 127 are capillary tubes.

[0100] Combination Figure 12 As shown in the diagram (arrows indicate refrigerant flow), in cooling mode, the control logic for cooling the first housing 110 includes the following steps in controlling the opening of the cooling flow path 120: controlling the three-position four-way valve 130 to switch to the second position 132, controlling the opening of the first flow regulating valve 125 and the second flow regulating valve 129, and controlling the closing of the first shut-off valve 124 and the opening of the second shut-off valve 128. The fire extinguishing flow path 140 is kept closed. After passing through the outdoor heat exchanger 206, the refrigerant is divided into two paths: one enters the cooling flow path 120 to cool the first housing 110, and the other enters the throttling device 208. The two paths merge and then pass through the indoor heat exchanger 210 to cool the indoor environment before returning to the compressor 202. The opening degree of the first flow regulating valve 125 and the second flow regulating valve 129 is proportional to the temperature inside the receiving cavity 102.

[0101] Combination Figure 13As shown in the diagram (arrows indicate refrigerant flow rates), in the cooling mode, the control logic for extinguishing the fire in the first housing 110 includes the following steps: controlling the three-position four-way valve 130 to switch to the second position 132; controlling the first flow regulating valve 125 to open to its maximum opening; controlling the second flow regulating valve 129 to close; controlling the first shut-off valve 124 and the second shut-off valve 128 to close; and controlling the valve body 142 of the cooling flow path 120 to open. The operating frequency of the compressor 202 is also controlled to its maximum operating frequency. After passing through the outdoor heat exchanger 206, the refrigerant is divided into two paths: one enters the cooling flow path 120 and the fire extinguishing flow path 140 to extinguish the fire in the first housing 110; the other enters the throttling device 208, then passes through the indoor heat exchanger 210 to cool the indoor environment before returning to the compressor 202.

[0102] When the air conditioner 1 is in heating mode, the direction of the cooling flow path 120 is determined to be from the second control terminal 126 to the first control terminal 122.

[0103] In some embodiments, the first throttling element 123 and the second throttling element 127 are electronic expansion valves.

[0104] In heating mode, the control logic for cooling the first housing 110 includes controlling the opening of the cooling flow path 120 by: controlling the three-position four-way valve 130 to switch to the first position 131; controlling the first shut-off valve 124 and the second throttling element 127 to open; and controlling the first throttling element 123 and the second shut-off valve 128 to close. The fire extinguishing flow path 140 is also kept closed. After passing through the indoor heat exchanger 210, the refrigerant is divided into two paths: one enters the cooling flow path 120 to cool the first housing 110, and the other enters the throttling element 208. The two paths merge, pass through the outdoor heat exchanger 206, and then return to the compressor 202.

[0105] In heating mode, the control logic for extinguishing the fire in the first housing 110 includes the following steps: controlling the cooling flow path 120 and the fire extinguishing flow path 140 to open; controlling the three-position four-way valve 130 to switch to the first position 131; controlling the first shut-off valve 124 and the second shut-off valve 128 to close; controlling the second throttling element 127 to open to its maximum opening; controlling the first throttling element 123 to close; and controlling the valve body 142 of the fire extinguishing flow path 140 to open. The compressor 202's operating frequency is also controlled to its maximum operating frequency. After passing through the indoor heat exchanger 210, the refrigerant is divided into two paths: one path enters the cooling flow path 120 and the fire extinguishing flow path 140 for fire extinguishing inside the first housing 110; the other path enters the throttling element 208, passes through the outdoor heat exchanger 206, and returns to the compressor 202.

[0106] In some embodiments, the first control terminal 122 further includes a first flow regulating valve 125, and the second control terminal 126 further includes a second flow regulating valve 129. The first flow regulating valve 125 and the second flow regulating valve 129 are respectively disposed at both ends of the cooling pipeline 121. The first throttling element 123 and the second throttling element 127 are capillary tubes.

[0107] Combination Figure 14 As shown in the diagram (arrows indicate refrigerant flow rate), in heating mode, the control logic for cooling the first housing 110 includes the following steps in controlling the opening of the cooling flow path 120: controlling the three-position four-way valve 130 to switch to the first position 131; controlling the first flow regulating valve 125 and the second flow regulating valve 129 to open; and controlling the first shut-off valve 124 to open and the second shut-off valve 128 to close. The fire extinguishing flow path 140 is kept closed. After passing through the indoor heat exchanger 210, the refrigerant is divided into two paths: one enters the cooling flow path 120 to cool the first housing 110, and the other enters the throttling device 208. After the two paths merge, they pass through the outdoor heat exchanger 206 and return to the compressor 202. The opening degree of the first flow regulating valve 125 and the second flow regulating valve 129 is proportional to the temperature inside the receiving cavity 102.

[0108] Combination Figure 15 As shown (arrows in the diagram indicate refrigerant flow rates), in heating mode, the control logic for extinguishing the fire in the first housing 110 includes the following steps: controlling the cooling flow path 120 and the fire extinguishing flow path 140 to open; controlling the three-position four-way valve 130 to switch to the first position 131; controlling the first flow regulating valve 125 to close and the second flow regulating valve 129 to open; controlling the first shut-off valve 124 and the second shut-off valve 128 to close; and controlling the valve body 142 of the fire extinguishing flow path 140 to open. The compressor 202's operating frequency is also controlled to the maximum operating frequency. After passing through the indoor heat exchanger 210, the refrigerant is divided into two paths: one path enters the cooling flow path 120 and the fire extinguishing flow path 140 for fire extinguishing inside the first housing 110; the other path enters the throttling element 208, passes through the outdoor heat exchanger 206, and returns to the compressor 202.

[0109] In some embodiments, a control device for an air conditioner is provided, including a processor and a memory storing program instructions, the processor being configured to execute the control method for the air conditioner as described in any of the foregoing embodiments when executing the program instructions.

[0110] Combination Figure 1 , Figure 2 , Figure 8 and Figure 9 The electrical control box assembly 100 shown, and Figures 3 to 7 , Figures 11 to 15 The air conditioner shown, in some embodiments, combines Figure 16As shown, a control method for an air conditioner is provided, including:

[0111] S1602, obtain the temperature inside the cavity.

[0112] S1604, when the temperature is greater than or equal to the first threshold, both the cooling flow path and the fire extinguishing flow path are controlled to be open.

[0113] S1606: When the temperature is less than the first threshold and greater than or equal to the second threshold, the cooling flow path is controlled to be open, and the fire extinguishing flow path is controlled to be closed.

[0114] The air conditioner control method disclosed herein includes: acquiring the temperature inside the containment cavity of a first housing; controlling the operating state of a cooling flow path and a fire extinguishing flow path based on the temperature inside the containment cavity; determining an ignition threshold and a suitable ambient temperature for the operation of the electrical components based on the type of electrical components inside the first housing; using the ignition threshold as a first threshold; and using the determined ambient temperature as a second threshold. This allows for the real-time comparison of the temperature inside the containment cavity with the first and second thresholds. Based on the comparison result, the temperature inside the containment cavity is adjusted by controlling the operating state of the cooling flow path and the fire extinguishing flow path to meet the requirements for safe operation of the electrical components, extend the service life of the electrical components, and thereby improve the overall stability of the equipment operation.

[0115] Specifically, when the temperature is greater than or equal to the first threshold, it indicates that the temperature inside the containment cavity is too high and there is a risk of fire, or even that a fire has already started. In this case, the cooling flow path and the fire extinguishing flow path are controlled to extinguish the fire in the containment cavity.

[0116] When the temperature is below the first threshold but greater than or equal to the second threshold, it indicates that the current temperature inside the containment cavity is affecting the operation of the electrical components. The cooling flow path is then opened to connect with the refrigerant flow path. Simultaneously, the opening degree of the cooling flow path is adjusted according to the temperature inside the containment cavity to cool the electrical control box using the refrigerant.

[0117] Optionally, the second threshold value is less than or equal to 26℃. Specific values ​​for the second threshold include, but are not limited to, 16℃, 18℃, 23℃, and 26℃.

[0118] The first threshold value ranges from 85% to 92% Tf, where Tf is the lowest ignition point among the electrical components in the first enclosure, and is determined based on the specific type of electrical component installed in the first enclosure.

[0119] Optionally, combined Figures 1 to 7As shown, the cooling flow path includes a first control terminal and a second control terminal. The first control terminal is connected to the refrigerant flow path located between the outdoor heat exchanger and the throttling device, and the second control terminal is connected to the refrigerant flow path located between the throttling device and the indoor heat exchanger. When the temperature is greater than or equal to a second threshold, the control method further includes: acquiring the operating mode of the air conditioner; when the operating mode is cooling mode, determining that the conduction direction of the cooling flow path is from the first control terminal to the second control terminal; when the operating mode is heating mode, determining that the conduction direction of the cooling flow path is from the second control terminal to the first control terminal.

[0120] The embodiments provided in this disclosure include an air conditioner operating mode comprising a heating mode and a cooling mode. In the heating mode, the refrigerant flow direction in the refrigerant flow path is opposite to that in the cooling mode. Since the refrigerant in the refrigerant flow path enters the cooling flow path to cool the first housing, the flow direction of the refrigerant entering the cooling flow path needs to be determined according to the air conditioner's operating mode. Furthermore, by controlling the first and second control terminals, the conduction path of the cooling flow path can meet the cooling requirements of the first housing.

[0121] Specifically, if the temperature inside the containment cavity is greater than or equal to the second threshold, it indicates that the temperature inside the containment cavity is too high, requiring cooling or fire suppression. The current operating mode of the air conditioner is obtained, and the direction of the cooling flow path is determined based on the operating mode. According to the determined direction of flow, the connection paths of the first and second control terminals are controlled.

[0122] Optionally, when the air conditioner is operating in cooling mode, the step of controlling both the cooling flow path and the fire extinguishing flow path to be open includes: controlling the first control terminal to be open, the second control terminal to be closed, and controlling the valve body of the fire extinguishing flow path to be open; when the air conditioner is operating in heating mode, the step of controlling both the cooling flow path and the fire extinguishing flow path to be open includes: controlling the first control terminal to be closed, the second control terminal to be open, and controlling the valve body of the fire extinguishing flow path to be open.

[0123] In this embodiment, the refrigerant flow direction in the refrigerant flow path during heating mode is opposite to that during cooling mode. Therefore, the flow direction of the refrigerant entering the cooling flow path is determined according to the air conditioner's operating mode. Then, by controlling the first and second control terminals, the conduction path of the cooling flow path can be used for fire extinguishing of the first housing.

[0124] Optionally, the cooling flow path also includes a three-position four-way valve. When the air conditioner is operating in cooling mode, the three-position four-way valve is controlled to switch to the second position; when the air conditioner is operating in heating mode, the three-position four-way valve is controlled to switch to the first position.

[0125] In this embodiment, the working position of the three-position four-way valve is controlled according to the operating mode of the air conditioner to adjust the flow path of the refrigerant. Thus, even when the inlet and outlet of the cooling flow path are fixed, it is still possible to cool down or extinguish the fire in the first chamber.

[0126] Combination Figure 1 and Figure 2 The electrical control box assembly shown, and combined with Figures 3 to 7 The air conditioner shown, in some embodiments, combines Figure 17 As shown, a control method for an air conditioner is provided, the control method including:

[0127] S1701, obtain the temperature inside the cavity.

[0128] S1702, determine whether the temperature is greater than or equal to the second threshold; if the result is yes, proceed to S1703; if the result is no, proceed to S1711.

[0129] S1703, Obtain the operating mode of the air conditioner.

[0130] S1704, determine whether the temperature is less than or equal to the first threshold; if the result is yes, proceed to S1705 and S1706; if the result is no, proceed to S1708 and S1709.

[0131] S1705, in cooling mode, controls the opening of the first flow regulating valve and the second flow regulating valve, and controls the closing of the first shut-off valve and the opening of the second shut-off valve.

[0132] S1706, in heating mode, controls the opening of the first flow regulating valve and the second flow regulating valve, and controls the opening of the first shut-off valve and the closing of the second shut-off valve.

[0133] S1707, controls the fire extinguishing flow path to remain closed.

[0134] S1708, in cooling mode, controls the first flow regulating valve to open to its maximum opening, controls the second flow regulating valve to close; controls the first and second shut-off valves to close; and controls the first valve body to open and the second valve body to close.

[0135] S1709, in heating mode, controls the first flow regulating valve to close and the second flow regulating valve to open to the maximum opening; and controls the first and second shut-off valves to close; and controls the second valve body to open and the first valve body to close.

[0136] S1710 controls the compressor's operating frequency to the maximum operating frequency.

[0137] S1711, both the cooling flow path and the fire extinguishing flow path are kept closed.

[0138] Combination Figure 8 and Figure 9 The electrical control box assembly shown, and combined with Figures 11 to 15 The air conditioner shown, in some embodiments, combines Figure 18 As shown, a control method for an air conditioner is provided, the control method including:

[0139] S1801, obtain the temperature inside the cavity.

[0140] S1802, determine whether the temperature is greater than or equal to the second threshold; if the result is yes, proceed to S1803; if the result is no, proceed to S1811.

[0141] S1803, obtain the operating mode of the air conditioner.

[0142] S1804, determine whether the temperature is less than or equal to the first threshold; if the result is yes, proceed to S1805 and S1806; if the result is no, proceed to S1808 and S1809.

[0143] S1805, in cooling mode, controls the three-position four-way valve to switch to the second position, controls the first flow regulating valve and the second flow regulating valve to open, and controls the first shut-off valve to close and the second shut-off valve to open.

[0144] S1806, in heating mode, controls the three-position four-way valve to switch to the first position, controls the first flow regulating valve and the second flow regulating valve to open; and controls the first shut-off valve to open and the second shut-off valve to close.

[0145] S1807, controls the fire extinguishing flow path to remain closed.

[0146] S1808, in cooling mode, controls the three-position four-way valve to switch to the second position, controls the first flow regulating valve to open to the maximum opening, controls the second flow regulating valve to close; controls the first and second shut-off valves to close; and controls the valve body of the cooling flow path to open.

[0147] S1809, in heating mode, controls the three-position four-way valve to switch to the first position, controls the first flow regulating valve to close and the second flow regulating valve to open; controls the first and second shut-off valves to close, and controls the valve body of the fire extinguishing flow path to open.

[0148] S1810 controls the compressor's operating frequency to the maximum operating frequency.

[0149] S1811, both the cooling flow path and the fire extinguishing flow path are kept closed.

[0150] Optionally, the temperature inside the containment cavity is acquired at a preset frequency. If no temperature is received from the containment cavity within a preset time period, a response signal is sent to the compressor. The compressor's operating status is acquired; if the compressor does not operate based on the response signal, and it is determined that the first housing has overheated or caught fire, the cooling flow path and the fire extinguishing flow path are activated, and the opening of the first flow regulating valve or the second flow regulating valve is adjusted to the maximum opening, and the compressor's operating frequency is adjusted to the maximum operating frequency to extinguish the fire. If the compressor operates based on the response signal, a temperature sensor malfunction is determined, a fault warning is issued, and the temperature sensor is replaced in a timely manner to improve safety monitoring.

[0151] Optionally, the preset frequency can be set according to the specific type of air conditioner. The preset duration can be set according to the specific usage conditions, and is not limited here, with the best goal being to achieve timely monitoring of temperature changes inside the first unit.

[0152] This disclosure provides a control device 1900 for an air conditioner, the structure of which is as follows: Figure 19 As shown, it includes:

[0153] The processor 1902 and memory 1904 may further include a communication interface 1906 and a bus 1908. The processor 1902, communication interface 1906, and memory 1904 can communicate with each other via the bus 1908. The communication interface 1906 can be used for information transmission. The processor 1902 can call logical instructions in the memory 1904 to execute the air conditioner control method of the above embodiment.

[0154] The memory 1904, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 1902 executes functional applications and data processing by running the program instructions / modules stored in the memory 1904, thereby implementing the air conditioner control method in the above method embodiments. Therefore, it possesses all the beneficial effects of the above embodiments, which will not be elaborated further here.

[0155] The memory 1904 may include a program storage area and a data storage area. The program storage area may store the operating system and application programs required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 1904 may include high-speed random access memory and may also include non-volatile memory.

[0156] This disclosure provides a computer-readable storage medium storing computer-executable instructions configured to execute the control method for the air conditioner described above.

[0157] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0158] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. The scope of the embodiments of this disclosure includes the entire scope of the claims and all available equivalents of the claims. When used in this application, although the terms “first,” “second,” etc., may be used in this application to describe elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, a first element may be called a second element without changing the meaning of the description, and likewise, a second element may be called a first element, provided that all occurrences of “first element” are consistently renamed and all occurrences of “second element” are consistently renamed. First and second elements are both elements, but may not be the same element. Moreover, the terminology used in this application is only for describing embodiments and is not intended to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms. Similarly, the term “and / or” as used herein means including one or more of the associated listed any and all possible combinations. Additionally, when used in this application, the terms “comprise” and its variations “comprises” and / or “comprising” refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase “comprising an…” does not exclude the presence of additional identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0159] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0160] The methods and products disclosed in the embodiments herein (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are merely illustrative. Furthermore, the shown or discussed mutual couplings, direct couplings, or communication connections can be indirect couplings or communication connections between devices or units through interfaces, and can be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate; the components shown as units may or may not be physical units, i.e., they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to implement this embodiment according to actual needs. Additionally, the functional units in the embodiments of this disclosure can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0161] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, or they may be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description; in some cases, there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, or they may be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. An electrical control box assembly, characterized in that, include: The first housing includes a receiving cavity for placing electrical components; A cooling flow path, located in the first housing, is used to cool the containing cavity. The cooling flow path includes a cooling pipe and a three-position four-way valve. The cooling pipe is located in the first housing and is used to cool the containing cavity. The cooling pipe includes a first control end and a second control end located outside the first housing. The three-position four-way valve includes a first interface, a second interface, a third interface, and a fourth interface. The first interface and the second interface are respectively connected to the first control end and the second control end. The third interface and the fourth interface are respectively connected to both ends of the cooling pipe, so that the inlet and outlet positions of the cooling pipe are fixed. The electrical components in the first housing are arranged according to their heat generation from high to low, along the flow direction of the heat exchange medium in the cooling pipe. The fire extinguishing flow path is connected to the cooling flow path. The fire extinguishing flow path includes a spray section, a fire extinguishing pipeline, and a valve body. The spray section is located inside the receiving cavity. The two ends of the fire extinguishing pipeline are connected to the cooling pipeline and the spray section, respectively. The valve body is located outside the first housing and is used to control the opening or closing of the fire extinguishing pipeline. One end of the fire extinguishing pipeline is connected to the third interface. The control circuit is used to control the operating status of the cooling flow path and the fire extinguishing flow path according to the temperature inside the containment cavity; the control circuit is connected to the three-position four-way valve and is used to control the working position of the three-position four-way valve. The second enclosure is set up independently of the first enclosure, and the control circuit is located in the second enclosure.

2. The electrical control box assembly according to claim 1, characterized in that, There are multiple fire extinguishing flow paths, and fire extinguishing flow paths are set at both ends of the cooling flow path.

3. An air conditioner, characterized in that, include: The refrigeration system includes a compressor, a four-way reversing valve, an outdoor heat exchanger, a throttling device, and an indoor heat exchanger, which are connected in sequence to form a refrigerant flow path. as well as The electrical control box assembly as described in claim 1 or 2, wherein the cooling flow path and the throttling device are arranged in parallel; The control circuit is used to control the operating status of the cooling flow path and the fire extinguishing flow path according to the temperature inside the containment cavity.

4. A control method for an air conditioner, characterized in that, For an air conditioner as described in claim 3, a first control terminal is connected to a refrigerant flow path located between the outdoor heat exchanger and the throttling device, and a second control terminal is connected to a refrigerant flow path located between the throttling device and the indoor heat exchanger; the three-position four-way valve includes a first position, a stationary position, and a second position; the first position corresponds to a first interface connected to a fourth interface, and a second interface connected to a third interface; the second position corresponds to a first interface connected to a third interface, and a second interface connected to a fourth interface; when in the stationary position, the cooling pipe is in an open-circuit state; the control method includes: Obtain the temperature inside the cavity; When the temperature is greater than or equal to the first threshold, both the cooling flow path and the fire extinguishing flow path are connected. When the temperature is less than the first threshold and greater than or equal to the second threshold, the cooling flow path is controlled to be open and the fire extinguishing flow path is controlled to be closed. in, When the air conditioner is running in cooling mode, the steps for controlling both the cooling flow path and the fire extinguishing flow path to be open include: controlling the first control terminal to be open, the second control terminal to be closed, and controlling the valve body of the fire extinguishing flow path to open; controlling the three-position four-way valve to switch to the second position; When the air conditioner is operating in heating mode, the steps for controlling both the cooling flow path and the fire extinguishing flow path to be open include: closing the first control terminal, opening the second control terminal, and opening the valve body of the fire extinguishing flow path; and controlling the three-position four-way valve to switch to the first position.

5. A control device for an air conditioner, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute the control method for the air conditioner as described in claim 4 when executing program instructions.

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