Air conditioner safety control device, method and system, air conditioner and electronic equipment

Abstract

The invention relates to the technical field of air conditioner safety control scheme design, in particular to an air conditioner safety control device, method and system, an air conditioner and electronic equipment. According to the invention, through continuous detection of the combustible refrigerant sensor group, the leakage of the combustible refrigerant in the electric appliance box at the bottom of the cabinet air conditioner and the large and small pipe areas can be identified in time; the combustible refrigerant leakage treatment device can release flame-retardant substances to dilute the concentration of the combustible refrigerant, and a warning agent marks the position of the combustible refrigerant and reminds a user of leakage, so that the risk of indoor fire blast is reduced; and the diffusion fan is matched with the ventilation grid to discharge the combustible refrigerant or the mixture of the combustible refrigerant, the flame-retardant substance and the warning agent out of the shell, so that the risk of burning explosion in the shell after leakage occurs is reduced. In the safety control process, safety state information is updated to a user in time, and safe operation of the air conditioner is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioner safety control scheme design, and in particular to an air conditioner safety control device and method, a system, an air conditioner, and an electronic device. Background Art

[0002] Due to the national standard for the amount of refrigerant with a flammable grade of A3 in refrigeration equipment, some refrigerants, such as R290, have not yet been used in air conditioner cabinets. At present, the patents related to safety measures for air conditioners are mainly for wall-mounted air conditioners. The existing technology mainly uses flammable refrigerant sensor detection for wall-mounted air conditioners using flammable refrigerants, and uses additional linkage measures such as cut-off devices, alarm devices, indoor and outdoor fans, spray devices, and exhaust devices to ensure the safety of the use process. However, the above solutions have the following problems:

[0003] (1) The large and small pipe assemblies are prone to leakage, and because they are located close to the electrical box, the leaked flammable refrigerant may contact the electrical box, creating a risk of combustion and explosion.

[0004] (2) There are significant differences in the internal structure between wall-mounted air conditioners and cabinet air conditioners. Wall-mounted air conditioners have a simple structure, with the evaporator placed horizontally and the internal structure connected. Cabinet air conditioners usually have front air outlet or top and bottom air outlets, and the bottom of the shell is usually well sealed. Therefore, when a leak occurs at the large and small pipe positions, the refrigerant will accumulate at the bottom and cannot be actively discharged, increasing the risk of explosion.

[0005] (3) The cabinet unit is filled with a large amount of refrigerant. If the flammable refrigerant is discharged directly into the room, there is still a risk of accumulation, and it is difficult to identify the location of the refrigerant.

[0006] Therefore, the prior art needs to be further developed. Summary of the invention

[0007] The purpose of the present invention is to overcome the above-mentioned technical deficiencies and provide an air conditioner safety control device and method, system, air conditioner, and electronic equipment to solve the technical problems existing in the prior art that flammable refrigerant may leak from the large and small pipes at the bottom of the cabinet air conditioner and may contact the electrical box to create a risk of combustion and explosion, the electrical box area at the bottom is poorly ventilated, the flammable refrigerant will continue to accumulate and cannot be discharged after leakage, and the concentration of the leaked refrigerant cannot be diluted and the diffusion position cannot be marked to ensure indoor safety.

[0008] To achieve the above technical objectives, according to a first aspect of the present invention, the present invention provides an air conditioner safety control device, comprising:

[0009] The air conditioner safety control device comprises:

[0010] A flammable refrigerant leakage processing device, wherein the control module is control-connected to the flammable refrigerant leakage processing device;

[0011] An acquisition module, used for acquiring environmental data inside the air conditioner;

[0012] The control module is used to control the working state of the flammable refrigerant leakage processing device according to the environmental data inside the air conditioner to reduce the concentration of the flammable refrigerant leaking inside the air conditioner.

[0013] Specifically, the acquisition module includes:

[0014] A flammable refrigerant sensor is arranged in the bottom area of ​​the air conditioner and is used to detect the concentration of flammable refrigerant inside the air conditioner.

[0015] Specifically, the flammable refrigerant sensor is provided in plurality, and the plurality of flammable refrigerant sensors are evenly distributed in the bottom area of ​​the air conditioner.

[0016] Specifically, the flammable refrigerant leakage treatment device includes:

[0017] The diffusion fan is arranged in the bottom area of ​​the air conditioner. The control module is connected to the diffusion fan control and is used to control the working state of the diffusion fan according to the environmental data inside the air conditioner, thereby reducing the concentration of flammable refrigerant remaining in the bottom area of ​​the air conditioner.

[0018] Specifically, the air conditioner safety control device further includes:

[0019] A ventilation grille is arranged at the bottom of the air conditioner and is used to cooperate with a diffusion fan to blow the flammable refrigerant remaining in the bottom area of ​​the air conditioner to the outside of the air conditioner through the ventilation grille.

[0020] Specifically, the flammable refrigerant leakage processing device includes a spray device, which is used to spray flame retardant materials. The control module is controlled and connected to the spray device, and is used to control the working state of the spray device according to the environmental data inside the air conditioner, thereby reducing the concentration of the flammable refrigerant remaining in the bottom area of ​​the air conditioner by spraying flame retardant materials.

[0021] According to a second aspect of the present invention, there is provided an air conditioner, comprising:

[0022] The above-mentioned air conditioner safety control device.

[0023] According to a third aspect of the present invention, there is provided an air conditioner safety control method, comprising:

[0024] S100, obtaining environmental data inside the air conditioner;

[0025] S200: Control the working state of the flammable refrigerant leakage processing device according to the environmental data inside the air conditioner to reduce the concentration of the flammable refrigerant leaking inside the air conditioner.

[0026] Specifically, the method includes:

[0027] The concentration data of each flammable refrigerant sensor is obtained at a preset time interval, and the working state of the flammable refrigerant leakage processing device is controlled according to the concentration data of each flammable refrigerant sensor.

[0028] Specifically, the method of controlling the working state of the flammable refrigerant leakage processing device according to the concentration data of each flammable refrigerant sensor includes:

[0029] Determine in sequence whether the maximum value of the concentration data of each flammable refrigerant sensor obtained at each time point is greater than or equal to a first preset threshold;

[0030] If it is detected that the maximum value of the concentration data of each flammable refrigerant sensor obtained at a certain time point is greater than or equal to a first preset threshold, the diffusion fan is controlled to operate;

[0031] If it is not detected that the maximum value of the concentration data of each flammable refrigerant sensor obtained at a certain time point is greater than or equal to the first preset threshold, the diffusion fan is kept turned off.

[0032] Specifically, the method further includes:

[0033] If the maximum value of the concentration data of each flammable refrigerant sensor obtained at a certain time point is greater than or equal to a first preset threshold, determining whether the maximum value is greater than or equal to a second preset threshold, and the second preset threshold is greater than the first preset threshold;

[0034] If so, the spray device of the flammable refrigerant leakage treatment device is controlled to start;

[0035] If not, keep the sprinkler of the flammable refrigerant leak handling device closed.

[0036] Specifically, the method further includes:

[0037] After the diffusion fan starts to run, it is determined in turn whether the maximum value of the concentration data of each flammable refrigerant sensor obtained at each subsequent time point is greater than or equal to a first preset threshold value;

[0038] If it is detected that the maximum value of the concentration data of each flammable refrigerant sensor obtained at a certain time point is less than a first preset threshold, the diffusion fan is controlled to stop running;

[0039] If it is not detected that the maximum value of the concentration data of each flammable refrigerant sensor obtained at a certain time point is less than the first preset threshold, the diffusion fan is kept running.

[0040] Specifically, if it is detected that the maximum value of the concentration data of each flammable refrigerant sensor obtained at a certain time point is less than a first preset threshold, the diffusion fan is controlled to stop running, including:

[0041] The air conditioner uses its own fluorine deficiency protection program to determine whether the current refrigerant charge can operate normally;

[0042] If so, an alarm signal is outputted indicating that the remaining amount of refrigerant is insufficient and the air conditioner cannot operate normally, and the air conditioner is controlled to stop operating;

[0043] If not, a prompt signal is outputted indicating that the current refrigerant charge amount can meet the normal operation of the air conditioner.

[0044] Specifically, the controlling the operation of the diffusion fan further includes:

[0045] The compressor of the air conditioner is controlled to stop, thereby controlling the air conditioner to stop running. According to a fourth aspect of the present invention, there is provided an air conditioner safety control system, comprising:

[0046] A flammable refrigerant leakage processing device, wherein the control module is control-connected to the flammable refrigerant leakage processing device;

[0047] An acquisition module, used for acquiring environmental data inside the air conditioner;

[0048] The control module is used to control the working state of the flammable refrigerant leakage processing device according to the environmental data inside the air conditioner to reduce the concentration of the flammable refrigerant leaking inside the air conditioner.

[0049] According to a fifth aspect of the present invention, there is provided an electronic device, comprising: a memory; and a processor, wherein the memory stores computer-readable instructions, and the computer-readable instructions implement the above-mentioned air conditioner safety control method when executed by the processor.

[0050] Beneficial effects:

[0051] The present invention can timely identify the flammable refrigerant leakage in the electrical box and large and small pipe areas at the bottom of the cabinet air conditioner through continuous detection of the flammable refrigerant sensor group; the flammable refrigerant leakage treatment device can release flame retardant substances to dilute the concentration of flammable refrigerant, and the warning agent can mark the location of the flammable refrigerant and remind the user of the leakage, thereby reducing the risk of indoor combustion and explosion; the diffusion fan can cooperate with the ventilation grille to discharge the flammable refrigerant or the mixture of flammable refrigerant, flame retardant substances and warning agents out of the shell, thereby reducing the risk of combustion and explosion inside the shell after the leakage occurs. In the safety control process, the safety status information is updated to the user in a timely manner to ensure the safe operation of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 is a flow chart of an air conditioner safety control method provided in a specific embodiment of the present invention;

[0053] Figure 2 is a control logic diagram of an air conditioner safety control method provided in a specific embodiment of the present invention;

[0054] Figure 3 is a structural schematic diagram of an air conditioner safety control device provided in a specific embodiment of the present invention;

[0055] Figure 4 It is a schematic diagram of the system composition of the air conditioner safety control system provided by the present invention;

[0056] In the above drawings, there are the following reference numerals:

[0057] 1. Large and small pipe assemblies; 2. Diffuser fan; 3. Spray device; 4. Air grille; 5. Electrical box; 6. Combustible refrigerant sensor; 100. Acquisition module; 200. Control module; 300. Combustible refrigerant leakage processing device. DETAILED DESCRIPTION

[0058] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the accompanying drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should all fall within the scope of protection of this application. In addition, the directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional words used are used to illustrate rather than limit the invention.

[0059] The present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments.

[0060] See also Figure 1-4 The present invention provides an air conditioner safety control device, the air conditioner safety control device comprising:

[0061] A flammable refrigerant leakage processing device 300, wherein the control module 200 is controllably connected to the flammable refrigerant leakage processing device 300;

[0062] An acquisition module 100 is used to acquire environmental data inside the air conditioner;

[0063] The control module 200 is used to control the working state of the flammable refrigerant leakage processing device 300 according to the environmental data inside the air conditioner, so as to reduce the concentration of the flammable refrigerant leaking inside the air conditioner.

[0064] Specifically, the acquisition module includes:

[0065] The flammable refrigerant sensor 6 is arranged in the bottom area of ​​the air conditioner and is used to detect the concentration of the flammable refrigerant inside the air conditioner.

[0066] Specifically, the flammable refrigerant sensor 6 is provided in plurality, and the plurality of flammable refrigerant sensors 6 are evenly distributed in the bottom area of ​​the air conditioner.

[0067] It can be understood that the plurality of flammable refrigerant sensors 6 form a flammable refrigerant sensor group.

[0068] Specifically, the flammable refrigerant leakage processing device 300 includes:

[0069] The diffusion fan 2 is arranged in the bottom area of ​​the air conditioner. The control module 200 is controlled and connected to the diffusion fan 2, and is used to control the working state of the diffusion fan 2 according to the environmental data inside the air conditioner, thereby reducing the concentration of the flammable refrigerant remaining in the bottom area of ​​the air conditioner.

[0070] Specifically, the air conditioner safety control device further includes:

[0071] The ventilation grille 4 is arranged at the bottom of the air conditioner, and is used to cooperate with the diffusion fan 2 to blow the flammable refrigerant remaining in the bottom area of ​​the air conditioner to the outside of the air conditioner through the ventilation grille 4.

[0072] Specifically, the flammable refrigerant leakage processing device 300 includes a spray device 3, which is used to spray flame retardant substances. The control module 200 is controlled and connected to the spray device 3, and is used to control the working state of the spray device 3 according to the environmental data inside the air conditioner, and then reduce the concentration of the flammable refrigerant remaining in the bottom area of ​​the air conditioner by spraying flame retardant substances.

[0073] It is understandable that the present invention can timely identify the flammable refrigerant leakage in the electrical box and large and small pipe areas at the bottom of the cabinet air conditioner through continuous detection of the flammable refrigerant sensor group; the flammable refrigerant leakage treatment device 300 can release flame retardant substances to dilute the concentration of flammable refrigerant, and the warning agent can mark the location of the flammable refrigerant and remind the user of the leakage, thereby reducing the risk of indoor combustion and explosion; the diffusion fan can cooperate with the air-permeable grille to discharge the flammable refrigerant or the mixture of flammable refrigerant, flame retardant substances and warning agents out of the shell, thereby reducing the risk of combustion and explosion inside the shell after the leakage occurs. In the safety control process, the safety status information is updated to the user in a timely manner to ensure the safe operation of the air conditioner.

[0074] See also Figure 3The present invention provides another embodiment, which provides an air conditioner, comprising:

[0075] The above-mentioned air conditioner safety control device.

[0076] It should be noted that the present invention can timely identify the flammable refrigerant leakage in the electrical box area described in the electrical box 5 at the bottom of the cabinet air conditioner and the large and small tube assembly area where the large and small tube assembly 1 is located through continuous detection of the flammable refrigerant sensor group; the flammable refrigerant leakage treatment device 300 can release flame retardant substances to dilute the concentration of flammable refrigerant, and the warning agent can mark the location of the flammable refrigerant and remind the user of the leakage, thereby reducing the risk of indoor combustion and explosion; the diffusion fan can cooperate with the air-permeable grille to discharge the flammable refrigerant or the mixture of flammable refrigerant, flame retardant substances and warning agents out of the shell, thereby reducing the risk of combustion and explosion inside the shell after the leakage occurs. In the process of safety control, the safety status information is updated to the user in a timely manner to ensure the safe operation of the air conditioner.

[0077] Please continue reading Figure 1-4 The present invention provides another embodiment, which provides an air conditioner safety control method, the air conditioner safety control method comprising:

[0078] S100: Obtaining environmental data inside the air conditioner.

[0079] Specifically, the step of obtaining the environmental data inside the air conditioner includes:

[0080] The concentration data of each flammable refrigerant sensor 6 is obtained at preset time intervals.

[0081] It should be noted here that the steps before step S100 include:

[0082] A first preset threshold, a second preset threshold, and a preset time interval are preset in the control module.

[0083] It can be understood that the first preset threshold, the second preset threshold, and the preset time interval can be specifically set according to the actual needs of the user of the present invention. The present invention does not limit the specific values ​​of the first preset threshold, the second preset threshold, and the preset time interval, and is mainly applicable to the air conditioner safety control method proposed in the present invention.

[0084] Preferably, the present invention sets the first preset threshold value to 0.25 times the lower explosion limit of the flammable refrigerant, and the present invention sets the second preset threshold value to 0.5 times the lower explosion limit of the flammable refrigerant. The above parameters are obtained by the technicians of the present invention through a large number of tests, and can well implement the air conditioner safety control method proposed by the present invention.

[0085] S200: Control the working state of the flammable refrigerant leakage processing device 300 according to the environmental data inside the air conditioner to reduce the concentration of the flammable refrigerant leaking inside the air conditioner.

[0086] It is understandable that, under normal circumstances, the flammable refrigerant is stored in the pipeline inside the air conditioner, and the large and small pipe assembly 1 is the connection between the indoor air conditioner and the outdoor air conditioner. The present invention is aimed at the situation where the large and small pipe area described in the large and small pipe assembly 1 leaks. In this case, the leaked flammable refrigerant will be vaporized under the action of normal atmospheric pressure and will stay in the square area at the bottom of the air conditioner. Therefore, the present invention additionally adds a diffusion fan 2, which can blow out the leaked flammable refrigerant along the newly added air-permeable grille 4, reduce the concentration of the flammable refrigerant in the square area at the bottom of the shell, and reduce the danger.

[0087] Specifically, the method includes:

[0088] The concentration data of each flammable refrigerant sensor 6 is acquired at a preset time interval, and the working state of the flammable refrigerant leakage processing device 300 is controlled according to the concentration data of each flammable refrigerant sensor 6 .

[0089] Specifically, the control of the working state of the flammable refrigerant leakage processing device 300 according to the concentration data of each flammable refrigerant sensor 6 includes:

[0090] Determine in sequence whether the maximum value of the concentration data of each flammable refrigerant sensor 6 obtained at each time point is greater than or equal to a first preset threshold;

[0091] If it is detected that the maximum value of the concentration data of each flammable refrigerant sensor 6 obtained at a certain time point is greater than or equal to the first preset threshold, the diffusion fan 2 is controlled to operate;

[0092] If it is not detected that the maximum value of the concentration data of each flammable refrigerant sensor 6 obtained at a certain time point is greater than or equal to the first preset threshold, the diffusion fan 2 is kept turned off.

[0093] Specifically, the method further includes:

[0094] If the maximum value of the concentration data of each flammable refrigerant sensor 6 obtained at a certain time point is greater than or equal to the first preset threshold, it is determined whether the maximum value is greater than or equal to the second preset threshold, and the second preset threshold is greater than the first preset threshold;

[0095] If yes, the spray device 3 of the flammable refrigerant leakage treatment device 300 is controlled to start;

[0096] If not, keep the spray device 3 of the flammable refrigerant leakage processing device 300 closed.

[0097] Specifically, the method further includes:

[0098] After the diffusion fan 2 starts to run, it is determined in turn whether the maximum value of the concentration data of each flammable refrigerant sensor 6 obtained at each subsequent time point is greater than or equal to the first preset threshold value;

[0099] If it is detected that the maximum value of the concentration data of each flammable refrigerant sensor 6 obtained at a certain time point is less than the first preset threshold value, the diffusion fan 2 is controlled to stop running;

[0100] If it is not detected that the maximum value of the concentration data of each flammable refrigerant sensor 6 obtained at a certain time point is less than the first preset threshold, the diffusion fan 2 is kept running.

[0101] Specifically, if it is detected that the maximum value of the concentration data of each flammable refrigerant sensor 6 obtained at a certain time point is less than the first preset threshold, the diffusion fan 2 is controlled to stop running, including:

[0102] The air conditioner uses its own fluorine deficiency protection program to determine whether the current refrigerant charge can operate normally;

[0103] If so, an alarm signal is outputted indicating that the remaining amount of refrigerant is insufficient and the air conditioner cannot operate normally, and the air conditioner is controlled to stop operating;

[0104] If not, a prompt signal is outputted indicating that the current refrigerant charge amount can meet the normal operation of the air conditioner.

[0105] Specifically, it is a prior art to use its own fluorine deficiency protection program to determine whether the current refrigerant charge can operate normally, and the present invention will not elaborate on it in detail.

[0106] Specifically, the controlling the operation of the diffusion fan 2 also includes:

[0107] Control the air conditioner's compressor to stop, and then control the air conditioner to stop running.

[0108] It should be noted here that the present invention mainly stipulates that the system has a flammable refrigerant leakage processing device 300, and the prescribed control logic is that when the sensor detects that the concentration reaches a second preset threshold, the flammable refrigerant leakage processing device 300 is activated to release the flame retardant and the warning agent.

[0109] The safety control system and safety control method of the present invention are further described below:

[0110] 1. Safety control system

[0111] The safety control system includes: a control panel, a combustible refrigerant sensor group, a diffusion fan 2, a spray device 3, and a ventilation grille 4.

[0112] Among them, the control panel is used for the following purposes:

[0113] a. Receive information from the flammable refrigerant sensor group and determine whether there is a flammable refrigerant leak;

[0114] b. If it is determined that there is a flammable refrigerant leak, each component in the control system will take safety measures and send an alarm message to the user.

[0115] Flammable Refrigerant Sensor Group:

[0116] a. The flammable refrigerant sensor group uses two or more flammable refrigerant sensors 6, which are installed at different positions in the bottom area of ​​the cabinet air conditioner to achieve the effect of rapid identification and response when the leakage position is in different directions.

[0117] b. The flammable refrigerant sensor group remains powered on and can be powered from the control board or independently.

[0118] c. The flammable refrigerant sensor group is connected to the control board to transmit the sensor collected data to the control board. The connection method can be spot welding, socket or other connection methods.

[0119] Diffuser fan 2:

[0120] a. The diffuser fan 2 receives a signal from the control board. When a start signal is received, the diffuser fan 2 runs. When a stop signal is received, the diffuser fan 2 stops running.

[0121] b. The diffusion fan 2 adopts an axial flow fan, and other types of fans and blades can also be used.

[0122] c. The installation position of the diffusion fan 2 can be set according to the most favorable discharge position for the flammable refrigerant.

[0123] Flammable refrigerant leakage treatment device:

[0124] a. The flammable refrigerant leakage treatment device receives a signal from the control panel, and when a concentration dilution instruction is received, the flammable refrigerant leakage treatment device is started;

[0125] b. The flammable refrigerant leakage treatment device includes a spray device 3, which can spray flame retardant gas or liquid flame retardant substances, including but not limited to inert gas, water, etc., to disperse the concentration of the leaked flammable refrigerant and reduce the risk of explosion;

[0126] c. A warning agent with a flame retardant gas or liquid and a tracer or odorant is used to mark the discharge location of the leaked flammable refrigerant and has a warning effect. The warning agent used in the present invention is non-toxic, harmless, non-flammable, and will not react with the flammable refrigerant and air conditioning components. Specifically, the present invention does not limit the specific type of the warning agent, as long as it meets the above requirements.

[0127] Breathable grille 4:

[0128] a. The ventilation grille 4 is used to cooperate with the diffusion fan to discharge the flammable refrigerant or the mixture of the flammable refrigerant and the flame retardant and the warning agent from the inside of the shell to reduce the risk of combustion and explosion.

[0129] b. The number, size and arrangement of ventilation grilles can be conducive to coordination with the system and meet the structural strength requirements.

[0130] It is understandable that the size, number and structural form of the air grille are not specified, and the form can be any form that can cooperate with the diffusion fan to discharge the flammable refrigerant leaked from the inside of the shell and meet the structural installation strength.

[0131] 2. Safety Control Methods

[0132] When the air conditioner is stopped or running, the control system is continuously powered and in working condition.

[0133] The flammable refrigerant sensor group continuously detects the flammable refrigerant concentration in the environment. The concentration data obtained by each sensor is recorded as A1...A x , where the maximum value of the sensor concentration data is recorded as A max This data is transmitted to the control board.

[0134] Set the sensor concentration judgment standard:

[0135] The first preset threshold is A L =0.25LEL, the second preset threshold is A H =0.5LEL, where LEL is the lower explosion limit of the flammable refrigerant, the first concentration value A L , the second concentration value A H The setting value can be adjusted.

[0136] When the maximum value of the sensor concentration data A in the flammable refrigerant sensor group max When the first concentration value is not reached (A max <A L ), the air conditioner can operate normally.

[0137] When the maximum value of the sensor concentration data A in the flammable refrigerant sensor group max When the first concentration value is reached but the second concentration value is not reached (A L ≤A max <A H ), the air conditioner enters the first protection state.

[0138] The first protection state specifically includes:

[0139] a. The compressor is shut down, and the air conditioner does not run or stops running;

[0140] b. Diffusion fan is turned on;

[0141] c. Send alarm information to users: slight leakage of flammable refrigerant;

[0142] When the maximum value of the sensor concentration data A in the flammable refrigerant sensor group max When the second concentration value is reached (A H ≤A max ), the air conditioner enters the second protection state.

[0143] The second protection state specifically includes:

[0144] a. The compressor is shut down, and the air conditioner does not run or stops running;

[0145] b. Diffusion fan is turned on;

[0146] c. Send alarm information to users: serious leakage of flammable refrigerant;

[0147] d. The flammable refrigerant leakage handling device is started.

[0148] Entering the second protection state from the first protection state: the newly added flammable refrigerant leakage handling device is started, and the other measures are the same.

[0149] When the maximum value of the sensor concentration data A in the flammable refrigerant sensor group max When the concentration reaches the first concentration value or the second concentration value and drops below the first concentration value again, the diffusion fan stops running, and the air conditioner determines whether the current refrigerant charge can operate normally according to its own protection program. If it is determined that the current charge can meet the normal operation of the air conditioner, a normal operation notification is sent to the user; if it is determined that the current charge cannot meet the normal operation of the air conditioner, a notification is sent to the user: the remaining refrigerant is insufficient, the air conditioner cannot operate normally, and enters the third protection state.

[0150] The third protection status specifically includes:

[0151] a. The air conditioner is not running;

[0152] b. Display the fault code and send a message to the user: insufficient refrigerant remaining and unable to operate normally.

[0153] It should be noted here that this patent only stipulates that the flammable refrigerant leakage handling device 300 is located in the large and small pipes and electrical box area, does not specify its specific installation position, does not specify the specific composition of the flame retardant and the warning agent, and can stipulate that the flame retardant and the warning agent are non-flammable, react with the air-conditioning structure, non-toxic, non-corrosive gases or non-conductive liquids, but does not specify the specific operation mode of the flammable refrigerant leakage handling device 300.

[0154] It is understandable that the present invention can timely identify the flammable refrigerant leakage in the electrical box and large and small pipe areas at the bottom of the cabinet air conditioner through continuous detection of the flammable refrigerant sensor group; the flammable refrigerant leakage treatment device 300 can release flame retardant substances to dilute the concentration of flammable refrigerant, and the warning agent can mark the location of the flammable refrigerant and remind the user of the leakage, thereby reducing the risk of indoor combustion and explosion; the diffusion fan can cooperate with the air-permeable grille to discharge the flammable refrigerant or the mixture of flammable refrigerant, flame retardant substances and warning agents out of the shell, thereby reducing the risk of combustion and explosion inside the shell after the leakage occurs. In the safety control process, the safety status information is updated to the user in a timely manner to ensure the safe operation of the air conditioner.

[0155] See also Figure 4 The present invention provides another embodiment, which provides an air conditioner safety control system, the air conditioner safety control system comprising:

[0156] A flammable refrigerant leakage processing device 300, wherein the control module 200 is controllably connected to the flammable refrigerant leakage processing device 300;

[0157] An acquisition module 100 is used to acquire environmental data inside the air conditioner;

[0158] The control module 200 is used to control the working state of the flammable refrigerant leakage processing device 300 according to the environmental data inside the air conditioner, so as to reduce the concentration of the flammable refrigerant leaking inside the air conditioner.

[0159] It should be noted that the present invention can timely identify the flammable refrigerant leakage in the electrical box and large and small pipe areas at the bottom of the cabinet air conditioner through continuous detection of the flammable refrigerant sensor group; the flammable refrigerant leakage treatment device can release flame retardant substances to dilute the concentration of flammable refrigerant, and the warning agent can mark the location of the flammable refrigerant and remind the user of the leakage, thereby reducing the risk of combustion and explosion in the room; the diffusion fan can cooperate with the air-permeable grille to discharge the flammable refrigerant or the mixture of flammable refrigerant, flame retardant substances and warning agents out of the shell, thereby reducing the risk of combustion and explosion inside the shell after the leakage occurs. In the safety control process, the safety status information is updated to the user in a timely manner to ensure the safe operation of the air conditioner.

[0160] In a preferred embodiment, the present application further provides an electronic device, the electronic device comprising:

[0161] A memory; and a processor, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the air conditioner safety control method is implemented. The computer device can be broadly a server, a terminal, or any other electronic device with necessary computing and / or processing capabilities. In one embodiment, the computer device may include a processor, a memory, a network interface, a communication interface, etc. connected via a system bus. The processor of the computer device can be used to provide necessary computing, processing and / or control capabilities. The memory of the computer device may include a non-volatile storage medium and an internal memory. An operating system, a computer program, etc. may be stored in or on the non-volatile storage medium. The internal memory can provide an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface and the communication interface of the computer device can be used to connect and communicate with external devices via a network. When the computer program is executed by the processor, the steps of the method of the present invention are performed.

[0162] The present invention may be implemented as a computer-readable storage medium having a computer program stored thereon, which causes the steps of the method of an embodiment of the present invention to be executed when executed by a processor. In one embodiment, the computer program is distributed on a plurality of computer devices or processors coupled to a network so that the computer program is stored, accessed and executed in a distributed manner by one or more computer devices or processors. A single method step / operation, or two or more method steps / operations, may be performed by a single computer device or processor or by two or more computer devices or processors. One or more method steps / operations may be performed by one or more computer devices or processors, and one or more other method steps / operations may be performed by one or more other computer devices or processors. One or more computer devices or processors may perform a single method step / operation, or perform two or more method steps / operations.

[0163] It will be appreciated by those skilled in the art that the method steps of the present invention may be performed by instructing related hardware such as a computer device or a processor through a computer program, and the computer program may be stored in a non-temporary computer-readable storage medium, which causes the steps of the present invention to be performed when the computer program is executed. Depending on the circumstances, any reference to memory, storage, database, or other media herein may include non-volatile and / or volatile memory. Examples of non-volatile memory include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, magnetic tape, floppy disk, magneto-optical data storage device, optical data storage device, hard disk, solid state disk, etc. Examples of volatile memory include random access memory (RAM), external cache memory, etc.

[0164] It is understandable that the present invention can timely identify the flammable refrigerant leakage in the electrical box and large and small pipe areas at the bottom of the cabinet air conditioner through continuous detection of the flammable refrigerant sensor group; the flammable refrigerant leakage treatment device can release flame retardant substances to dilute the concentration of flammable refrigerant, and the warning agent can mark the location of the flammable refrigerant and remind the user of the leakage, thereby reducing the risk of indoor combustion and explosion; the diffusion fan can cooperate with the air-permeable grille to discharge the flammable refrigerant or the mixture of flammable refrigerant, flame retardant substances and warning agents out of the shell, thereby reducing the risk of combustion and explosion inside the shell after the leakage occurs. In the safety control process, the safety status information is updated to the user in a timely manner to ensure the safe operation of the air conditioner.

[0165] The various technical features described above can be combined arbitrarily. Although all possible combinations of these technical features are not described, any combination of these technical features should be considered to be covered by this specification as long as there is no contradiction in such combination.

[0166] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An air conditioner safety control device, characterized in that: The air conditioner safety control device comprises: A flammable refrigerant leakage processing device (300), wherein the control module (200) is controllably connected to the flammable refrigerant leakage processing device (300); An acquisition module (100), used for acquiring environmental data inside the air conditioner; The control module (200) is used to control the working state of the flammable refrigerant leakage processing device (300) according to the environmental data inside the air conditioner, so as to reduce the concentration of the flammable refrigerant leaking inside the air conditioner.

2. The air conditioner safety control device according to claim 1, characterized in that: The acquisition module comprises: A flammable refrigerant sensor (6) is arranged in the bottom area of ​​the air conditioner and is used to detect the concentration of the flammable refrigerant inside the air conditioner.

3. The air conditioner safety control device according to claim 2, characterized in that: The flammable refrigerant sensor (6) is arranged in plurality, and the plurality of flammable refrigerant sensors (6) are evenly distributed in the bottom area of ​​the air conditioner.

4. The air conditioner safety control device according to claim 1, characterized in that: The flammable refrigerant leakage treatment device (300) comprises: A diffusion fan (2), the diffusion fan (2) being arranged in the bottom area of ​​the air conditioner, the control module (200) being control-connected to the diffusion fan (2) and being used to control the working state of the diffusion fan (2) according to the environmental data inside the air conditioner, thereby reducing the concentration of the flammable refrigerant remaining in the bottom area of ​​the air conditioner.

5. The air conditioner safety control device according to claim 4, characterized in that: The air conditioner safety control device also includes: A ventilation grille (4) is arranged at the bottom of the air conditioner, and the ventilation grille (4) is used to cooperate with the diffusion fan (2) to blow the flammable refrigerant remaining in the bottom area of ​​the air conditioner to the outside of the air conditioner through the ventilation grille (4).

6. The air conditioner safety control device according to claim 1, characterized in that: The flammable refrigerant leakage processing device (300) comprises a spray device (3), the spray device (3) is used to spray a flame retardant substance, and the control module (200) is control-connected to the spray device (3) and is used to control the working state of the spray device (3) according to environmental data inside the air conditioner, thereby reducing the concentration of the flammable refrigerant remaining in the bottom area of ​​the air conditioner by spraying the flame retardant substance.

7. An air conditioner, characterized in that: The invention comprises the air conditioner safety control device as described in any one of claims 1 to 6.

8. An air conditioner safety control method, characterized in that: The method comprises: S100, obtaining environmental data inside the air conditioner; S200, controlling the working state of the flammable refrigerant leakage processing device (300) according to the environmental data inside the air conditioner to reduce the concentration of the flammable refrigerant leaking inside the air conditioner.

9. The air conditioner safety control method according to claim 8, characterized in that: The method comprises: Concentration data of each flammable refrigerant sensor (6) is acquired at preset time intervals, and the working state of the flammable refrigerant leakage processing device (300) is controlled according to the concentration data of each flammable refrigerant sensor (6).

10. The air conditioner safety control method according to claim 9, characterized in that: The controlling the working state of the flammable refrigerant leakage processing device (300) according to the concentration data of each flammable refrigerant sensor (6) comprises: sequentially determining whether the maximum value of the concentration data of each flammable refrigerant sensor (6) obtained at each time point is greater than or equal to a first preset threshold value; If it is detected that the maximum value of the concentration data of each flammable refrigerant sensor (6) obtained at a certain time point is greater than or equal to a first preset threshold value, the diffusion fan (2) is controlled to operate; If it is not detected that the maximum value of the concentration data of each flammable refrigerant sensor (6) obtained at a certain time point is greater than or equal to the first preset threshold value, the diffusion fan (2) is kept turned off.

11. The air conditioner safety control method according to claim 10, characterized in that: The method further comprises: If the maximum value of the concentration data of each flammable refrigerant sensor (6) obtained at a certain time point is greater than or equal to a first preset threshold, determining whether the maximum value is greater than or equal to a second preset threshold, and the second preset threshold is greater than the first preset threshold; If so, controlling the spray device (3) of the flammable refrigerant leakage treatment device (300) to start; If not, keep the spray device (3) of the flammable refrigerant leakage processing device (300) closed.

12. The air conditioner safety control method according to claim 10, characterized in that: The method further comprises: After the diffusion fan (2) starts to operate, it is sequentially determined whether the maximum value of the concentration data of each flammable refrigerant sensor (6) obtained at each subsequent time point is greater than or equal to a first preset threshold value; If it is detected that the maximum value of the concentration data of each flammable refrigerant sensor (6) obtained at a certain time point is less than a first preset threshold value, the diffusion fan (2) is controlled to stop running; If it is not detected that the maximum value of the concentration data of each flammable refrigerant sensor (6) obtained at a certain time point is less than the first preset threshold value, the diffusion fan (2) is kept running.

13. The air conditioner safety control method according to claim 12, characterized in that: If it is detected that the maximum value of the concentration data of each flammable refrigerant sensor (6) obtained at a certain time point is less than a first preset threshold value, the diffusion fan (2) is controlled to stop running, comprising: The air conditioner uses its own fluorine deficiency protection program to determine whether the current refrigerant charge can operate normally; If so, an alarm signal is outputted indicating that the remaining amount of refrigerant is insufficient and the air conditioner cannot operate normally, and the air conditioner is controlled to stop operating; If not, a prompt signal is outputted indicating that the current refrigerant charge amount can meet the normal operation of the air conditioner.

14. The air conditioner safety control method according to claim 10, characterized in that: The controlling the operation of the diffusion fan (2) further comprises: Control the compressor of the air conditioner to stop, and then control the air conditioner to stop running.

15. An air conditioner safety control system, characterized in that: include: A flammable refrigerant leakage processing device (300), wherein the control module (200) is controllably connected to the flammable refrigerant leakage processing device (300); An acquisition module (100), used for acquiring environmental data inside the air conditioner; The control module (200) is used to control the working state of the flammable refrigerant leakage processing device (300) according to the environmental data inside the air conditioner, so as to reduce the concentration of the flammable refrigerant leaking inside the air conditioner.

16. An electronic device, characterized in that: include: Memory; and a processor, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the air conditioner safety control method according to any one of claims 8 to 15 is implemented.

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