A kitchen air conditioning system and a control method thereof

Abstract

The application relates to a kitchen air conditioning system and a control method thereof, and the kitchen air conditioning system comprises an air conditioning assembly, a first casing, a compressor, a condenser, an evaporator and a sterilization module, the compressor, the condenser and the evaporator are connected through refrigerant pipelines; an air outlet channel is arranged in the first casing, the evaporator and the sterilization module are arranged in the air outlet channel, and the air outlet channel is provided with a first air inlet and an air outlet which are communicated with a kitchen room; the application further comprises a detection module for detecting the number of bacteria and / or viruses in the kitchen; a controller is electrically connected with the detection module and the sterilization module, and the controller is configured to control the sterilization module to work according to the detection result of the detection module. The system can sterilize the bacteria in the kitchen air while realizing refrigeration, so as to improve the kitchen environment and improve the user experience.

Description

Technical Field

[0001] This invention relates to the field of household kitchen appliances, and in particular to a kitchen air conditioning system and its control method. Background Technology

[0002] The kitchen is the main place where people cook, and the quality of the kitchen air environment directly affects the cooking experience. Kitchens are hot in summer and cold in winter, requiring both heating and cooling. To address this, people have invented various kitchen air conditioners to cool the air in summer and provide warm air in winter, thereby improving cooking comfort.

[0003] Existing refrigerated range hoods include a compressor, evaporator, and condenser. That is, a refrigeration component is added to the basic range hood design, enabling it to perform all the functions of a range hood while also providing air conditioning cooling. For example, Chinese utility model patent number ZL201620118022.2 (authorization announcement number CN205402826U) discloses a range hood, and Chinese invention patent number ZL201610382769.3 (authorization announcement number CN105910147B) discloses a refrigerated range hood.

[0004] In addition to its functions of smoke extraction and cooling, existing cooling range hoods also have disinfection and sterilization functions. For example, Chinese utility model patent number ZL202023224952.1 (authorization announcement number CN 214536602U) discloses a kitchen air conditioning system. This system has a fresh air treatment unit outside the range hood. The air inlet of the air outlet duct is connected to the outdoor air phase fluid through the fresh air treatment unit. The fresh air treatment unit includes a shell, and inside the shell, along the air intake direction, a filter purification module, a fresh air fan, and a disinfection and sterilization module are installed in sequence. The disinfection and sterilization module can be an ultraviolet sterilization module, etc. However, the above system has the following limitations: the kitchen air conditioning system does not have a control module to control the operation of the disinfection and sterilization module. Therefore, if the disinfection and sterilization module works for a long time, there is likely to be an odor after the sterilization operation, and users may inhale high concentrations of ozone during the sterilization process, which may cause harm to users.

[0005] Therefore, further improvements to existing technologies are needed. Summary of the Invention

[0006] The first technical problem to be solved by the present invention is to provide a kitchen air conditioning system that can disinfect and sterilize the kitchen, in contrast to the above-mentioned prior art.

[0007] The second technical problem to be solved by the present invention is to provide a control method for the kitchen air conditioning system described above, which can ensure user safety, in light of the prior art.

[0008] The third technical problem to be solved by the present invention is to provide a control method for a kitchen air conditioning system as described above, which is in contrast to the prior art described above. This method can ventilate the kitchen after disinfection and sterilization to remove odors.

[0009] The technical solution adopted by the present invention to solve the first technical problem mentioned above is: a kitchen air conditioning system, comprising:

[0010] An air conditioning assembly includes a first housing, a compressor, a condenser, an evaporator, and a sterilization module. The compressor, condenser, and evaporator are connected by a refrigerant pipeline. An air outlet duct is provided inside the first housing. The evaporator and the sterilization module are both located inside the air outlet duct. The air outlet duct has a first air inlet and an air outlet that both flow through the kitchen interior.

[0011] Its features also include:

[0012] The detection module is used to detect the number of bacteria and / or viruses in the kitchen;

[0013] The controller is electrically connected to the detection module and the disinfection and sterilization module, and is configured to control the disinfection and sterilization module to perform corresponding operations based on the detection results of the detection module.

[0014] Preferably, the detection module is at least one of a bacterial detection sensor and a virus detection sensor.

[0015] In order to achieve the switching between the air conditioning component introducing outdoor fresh air and the internal circulation cooling mode, the air outlet duct also has a second air inlet that is fluidly connected to the outdoor air of the kitchen. The air outlet duct is also provided with a second baffle that is constrained therein by rotation. During the rotation of the second baffle, the second baffle can either close the first air inlet and allow the air outlet duct to take in air through the second air inlet, or block the air outlet duct and allow the air outlet duct to take in air through the first air inlet.

[0016] Furthermore, along the airflow direction, the disinfection and sterilization module is located upstream of the evaporator, and downstream of the first air inlet and the second air inlet.

[0017] In order to achieve the blowing of cold air, an air outlet fan is also installed in the air outlet channel. Along the airflow direction, the air outlet fan is located downstream of the evaporator, and the air outlet direction of the air outlet fan is towards the air outlet of the air outlet channel.

[0018] In order to change the air outlet direction of the air conditioning component, an air outlet louver is installed in the air outlet channel near its air outlet.

[0019] Preferably, the disinfection and sterilization module is an ultraviolet disinfection lamp installed inside the first housing.

[0020] In order to achieve heat dissipation inside the first housing, the first housing is provided with a heat dissipation fan located downstream of the condenser along the airflow direction. The air outlet of the heat dissipation fan is connected to an exhaust pipe, and the air outlet direction of the heat dissipation fan is aligned with the inlet of the exhaust pipe.

[0021] To achieve coordination between the air conditioning component and the fume extraction component, the kitchen air conditioning system further includes a fume extraction component. The fume extraction component includes a second housing and a fume extraction fan installed inside the second housing. An exhaust pipe connected to the air outlet of the fume extraction fan is installed on the top of the second housing. The exhaust pipe is connected to an exhaust duct. A first baffle is also provided inside the exhaust pipe. During the rotation of the first baffle, the first baffle can selectively block the exhaust pipe, block the exhaust duct, or simultaneously open the exhaust pipe and the exhaust duct.

[0022] The technical solution adopted by the present invention to solve the second and third technical problems mentioned above is: a control method for the kitchen air conditioning system as described above, characterized by comprising the following steps:

[0023] Step 1: Detect the number of bacteria and / or viruses (C) in the kitchen using a detection module;

[0024] Step 2: Determine whether C is greater than or equal to the maximum preset threshold Cmax. If yes, proceed to step 3; otherwise, proceed to step 1.

[0025] Step 3: Perform a virus disinfection, and after the disinfection is completed, retest the number of bacteria and / or viruses C' in the kitchen;

[0026] Step 4: Determine if C' is greater than or equal to Cmax. If yes, proceed to Step 3 and perform virus disinfection again. If no, stop virus disinfection, ventilate the kitchen, and end the process.

[0027] To select different disinfection methods based on the distribution of the virus, ensuring accuracy and efficiency, step 3 includes two types of virus disinfection: whole-house disinfection of the kitchen and targeted disinfection of specific areas within the kitchen. The specific determination method is as follows:

[0028] Detect the distribution range of the virus and determine whether the virus is distributed in multiple locations. If so, perform whole-house virus disinfection in the kitchen; otherwise, perform targeted virus disinfection in the kitchen.

[0029] Preferably, the specific steps for whole-house virus disinfection in the kitchen are as follows:

[0030] Step 3-1: Check the personnel situation in the kitchen;

[0031] Step 3-2: Determine if there is anyone in the kitchen. If yes, proceed to step 3-3; otherwise, remind the person in the kitchen to leave and proceed to step 3-1 again.

[0032] Step 3-3: Check the lock status of the kitchen door;

[0033] Step 3-4: Determine if the kitchen door is locked. If yes, proceed to step 3-5; otherwise, remind the user to lock the kitchen door or automatically lock the kitchen door, and proceed to step 3-3.

[0034] Steps 3-5: Control the opening of the first air inlet and control the operation of the exhaust fan;

[0035] Steps 3-6: The disinfection and sterilization module starts working. The working power of the disinfection and sterilization module is P0. When the working time of the disinfection and sterilization module reaches the first preset time T0, the disinfection and sterilization of the whole kitchen is considered to be completed.

[0036] Preferably, the targeted disinfection of the kitchen for viruses includes the following steps:

[0037] Step 3-a: Check the personnel situation in the kitchen;

[0038] Step 3-b: Determine if there is anyone in the kitchen. If yes, proceed to step 3-c; otherwise, remind the person in the kitchen to leave and proceed to step 3-a again.

[0039] Step 3-c: Check the lock status of the kitchen door;

[0040] Step 3-d: Determine if the kitchen door is locked. If yes, proceed to step 3-e; otherwise, remind the user to lock the kitchen door or automatically lock the kitchen door, and proceed to step 3-b.

[0041] Step 3-e: Control the opening of the first air inlet and control the operation of the exhaust fan;

[0042] Step 3-f: The disinfection and sterilization module starts working. The working power of the disinfection and sterilization module is P1, P1 < P0. When the working time of the disinfection and sterilization module reaches the second preset time T1, the virus disinfection work of the current fixed area is considered to be completed, T1 < T0.

[0043] Step 3-g: Following the same method as in steps 3-a to 3-f above, complete the virus disinfection work in all designated areas in sequence, and then determine that the targeted virus disinfection in the kitchen is complete.

[0044] To ensure kitchen ventilation and user safety, the specific steps in step 4 when C' is less than Cmax are as follows:

[0045] Step 4-1: Control the disinfection and sterilization module to stop working, and control the air outlet fan to stop running;

[0046] Step 4-2: Control the first baffle to block the exhaust pipe;

[0047] Step 4-3: Control the operation of the cooling fan to ventilate the kitchen;

[0048] Step 4-4: Detect the ozone concentration in the kitchen;

[0049] Step 4-5: Determine if the ozone concentration in the kitchen has significantly decreased. If so, proceed to step 4-6; otherwise, proceed to step 4-7.

[0050] Steps 4-6: Detect the ozone concentration M in the kitchen again and determine whether M is less than or equal to the maximum preset ozone concentration Mmax. If yes, end the process and remind the user to unlock the kitchen door or automatically unlock the kitchen door. If no, proceed to step 4-5.

[0051] Step 4-7: Control the first baffle to open the exhaust pipe and the ventilation pipe at the same time, and control the operation of the fume extraction fan. After the fume extraction fan and the cooling fan have been running together for the third preset time, proceed to step 4-6.

[0052] Compared with the prior art, the advantages of the present invention are as follows: by setting up a detection module for detecting the number of bacteria and / or viruses in the kitchen and a controller, the controller is electrically connected to the detection module and the disinfection and sterilization module. The controller is configured to control the disinfection and sterilization module to perform corresponding work according to the detection results of the detection module, so as to achieve cooling while disinfecting and sterilizing bacteria in the kitchen air, thereby improving the kitchen environment and enhancing the user experience. Attached Figure Description

[0053] Figure 1 This is a schematic diagram of the kitchen air conditioning system in an embodiment of the present invention;

[0054] Figure 2 for Figure 1 Another perspective structural diagram;

[0055] Figure 3 for Figure 1 Partial structural diagram (first casing omitted);

[0056] Figure 4 for Figure 3 Another perspective structural diagram;

[0057] Figure 5 for Figure 1 Partial sectional view (second casing omitted);

[0058] Figure 6 This is a flowchart of the control method for the kitchen air conditioning system in an embodiment of the present invention. Detailed Implementation

[0059] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0060] like Figures 1-5 As shown, the kitchen air conditioning system in this embodiment includes an air conditioning component 1 and a fume extraction component 2. The air conditioning component 1 includes a first housing 11 and a compressor 12, a condenser 13, and an evaporator 14 housed within the first housing 11. The compressor 12, condenser 13, and evaporator 14 are connected via a refrigerant pipe a. These components constitute a refrigeration system, a technology already known in air conditioning, and its principle will not be elaborated here. The fume extraction component 2 includes a second housing 21 and a fume extraction fan (not shown) installed within the second housing 21. An exhaust pipe 23, connected to the exhaust fan's outlet, is installed on the top of the second housing 21. The fume extraction component 2 uses a conventional range hood. The first housing 11 is located on top of the second housing 21, and the first housing 11 has a perforation (not shown) for at least part of the exhaust pipe 23 to extend out. This design saves installation space for the air conditioning component 1, making the kitchen air conditioning system more aesthetically pleasing.

[0061] The first casing 11 has an air outlet duct 114 inside, and the evaporator 14 is located inside the air outlet duct 114. The air outlet duct 114 has an air inlet and an air outlet 112, such as Figure 1 , 2 As shown in Figure 4, the air inlet in this embodiment includes a first air inlet 111a that is in fluid communication with the interior of the kitchen and a second air inlet 111b that is in fluid communication with the exterior of the kitchen. The top of the air outlet duct 114 is open, and the second air inlet 111b corresponds to the top opening of the air outlet duct 114. The first air inlet 111a is opened on the side wall of the air outlet duct 114. The air intake through the first air inlet 111a is called the internal circulation mode, and the air intake through the second air inlet 111b is called the fresh air mode. The air outlet 112 is in fluid communication with the interior of the kitchen.

[0062] An air outlet fan 15 and a disinfection module 10 are also installed in the air outlet duct 114. Along the airflow direction, the air outlet fan 15 is located downstream of the evaporator 14, and the disinfection module 10 is located upstream of the evaporator 14. Furthermore, the disinfection module 10 is located downstream of the first air inlet 111a and the second air inlet 111b, as described in this embodiment. Figure 4As shown, the disinfection and sterilization module 10 is an ultraviolet disinfection lamp installed inside the first housing 11; the air outlet fan 15 faces the air outlet of the air outlet duct 114; inside the air outlet duct 114, near its air outlet 112, there is also a swingable air outlet vane 17 and a third drive mechanism that drives the air outlet vane 17 to change the air outlet direction of the air outlet 112 of the air outlet duct 114. This third drive mechanism is a motor that drives the air outlet vane 17 to swing back and forth and left and right. The air outlet vane 17 is a common existing technology in existing air conditioners and will not be described in detail here. Figure 1 As shown, a vertically extending square tube is provided on the left side of the first housing 11, such as... Figure 5 As shown, the evaporator 14 is located at the end of the square tube, and the air outlet fan 15 is located close to or adjacent to the right side of the evaporator 14. The air outlet of the air outlet fan 15 is connected to the air outlet pipe 16. The air outlet pipe 16 is in fluid communication with the square tube to form the aforementioned air outlet channel 114. The air outlet 112 is opened on the front side of the air outlet pipe 16.

[0063] Additionally, a second baffle 6 is provided within the air outlet duct 114, which is rotatably constrained therein. During the rotation of the second baffle 6, the second baffle 6 can selectively close the first air inlet 111a, allowing air to enter the air outlet duct 114 through the second air inlet 111b, or block the air outlet duct 114, allowing air to enter the air outlet duct 114 through the first air inlet 111a. Figure 3 and Figure 4 As shown, this embodiment also includes a second driving mechanism for driving the second baffle 6 to rotate. The second driving mechanism is a second motor 7 that is connected to the second baffle 6. One side of the second baffle 6 is constrained to the wall of the air outlet 114 where the first air inlet 111a is located and is located upstream of the first air inlet 111a. The other side of the second baffle 6 is a free end.

[0064] The first housing 11 has a heat dissipation port 113 with an external exhaust pipe 19 connected to it. The exhaust pipe 23 is connected to the exhaust pipe 19. A cooling fan 18 is located downstream of the condenser 13 along the airflow direction on the first housing 11. The cooling fan 18 is positioned close to or adjacent to one side of the condenser 13, and its exhaust direction is aligned with the inlet of the exhaust pipe 19. Figure 1 As shown, the top of the first housing 11 is also provided with a third air inlet 111c for supplying air to the condenser 13, and the third air inlet 111c is in fluid communication with the interior of the kitchen; as Figure 5 As shown, the air outlet of the cooling fan 18 corresponds to the heat dissipation vent 113 of the first housing 11. Additionally, as... Figure 3 As shown, the evaporator 14 and the condenser 13 are located on opposite sides inside the first casing 11. This spacing isolates the hot air flowing through the condenser 13 from the cold air flowing through the evaporator 14, preventing them from interfering with each other.

[0065] The first baffle 4 is rotatably constrained within the exhaust pipe 23. During the rotation of the first baffle 4, it can selectively block the exhaust pipe 23, block the vent pipe 19, or simultaneously open both the exhaust pipe 23 and the vent pipe 19. In this embodiment, the first motor 5 is connected to the first baffle 4 for driving, thereby driving the first baffle 4 to rotate. Figure 5 As shown, in this embodiment, a three-way valve 3 is provided in the middle of the exhaust pipe 23. The three-way valve 3 has a first inlet 31, a second inlet 32, and an outlet 33. The first inlet 31 and the outlet 33 of the three-way valve 3 are both connected to the exhaust pipe 23, and the second inlet 32 ​​of the three-way valve 3 is connected to the exhaust port of the exhaust pipe 19. The first baffle 4 is constrained within the three-way valve 3. During the rotation of the first baffle 4, the first baffle 4 has the following three states: In the first state, the first baffle 4 closes the second inlet 32 ​​to block the exhaust pipe 19; in the second state, the first baffle 4 closes the first inlet 31 to block the exhaust pipe 23; in the third state, the first baffle 4 rotates to a position between the first inlet 31 and the second inlet 32, and both the first inlet 31 and the second inlet 32 ​​are open to simultaneously open the exhaust pipe 23 and the exhaust pipe 19.

[0066] like Figure 5 As shown, the three-way valve 3 in this embodiment is square and hollow inside. The first inlet 31 and outlet 33 are respectively located on the upper and lower walls of the three-way valve 3, and the second inlet 32 ​​is located on one side wall of the three-way valve 3. The first side of the first baffle 4 extends along the width direction of the three-way valve 3, and the first side of the first baffle 4 is rotatably constrained at the intersection of the wall where the first inlet 31 is located and the wall where the second inlet 32 ​​is located. The second side is a free side. Thus, when the first baffle 4 rotates to be completely attached to the side wall of the three-way valve 3 where the second inlet 32 ​​is located, it is in the first state; when the first baffle 4 rotates to be completely attached to the lower wall of the three-way valve 3, it is in the second state (e.g., ...). Figure 5 As shown, the first baffle 4 is in the second state. When the first baffle 4 rotates to the position between the side wall of the three-way valve 3 where the second inlet 32 ​​is located and the lower wall of the three-way valve 3, it is in the third state. In this embodiment, the angle between the first baffle 4 and the lower wall of the three-way valve 3 in the third state is 60°.

[0067] The kitchen air conditioning system also includes a detection module (not shown in the figure) and a controller (not shown in the figure). The detection module is used to detect the number of bacteria and / or viruses in the kitchen. The controller is electrically connected to the detection module and the disinfection and sterilization module 10, and is configured to control the disinfection and sterilization module 10 to perform corresponding operations based on the detection results of the detection module. In this embodiment, the detection module is at least one of a bacterial detection sensor and a virus detection sensor. The detection module uses existing sensors, which will not be described in detail here.

[0068] like Figure 6 As shown, the control method of the kitchen air conditioning system in this embodiment includes the following steps:

[0069] Step 1: Detect the number of bacteria and / or viruses (C) in the kitchen using a detection module;

[0070] Step 2: Determine whether C is greater than or equal to the maximum preset threshold Cmax. If yes, proceed to step 3; otherwise, proceed to step 1.

[0071] Step 3: Perform a virus disinfection, and after the disinfection is completed, retest the number of bacteria and / or viruses C' in the kitchen;

[0072] Step 4: Determine if C' is greater than or equal to Cmax. If yes, proceed to Step 3 and perform virus disinfection again. If no, stop virus disinfection, ventilate the kitchen, and end the process.

[0073] In this embodiment, the specific steps when C' is less than Cmax are as follows:

[0074] Step 4-1: Control the disinfection and sterilization module to stop working, and control the air outlet fan to stop running;

[0075] Step 4-2: Control the first baffle to block the exhaust pipe;

[0076] Step 4-3: Control the operation of the cooling fan to ventilate the kitchen;

[0077] Step 4-4: Detect the ozone concentration in the kitchen;

[0078] The purpose of detecting ozone concentration in this embodiment is because the ultraviolet disinfection lamp releases a high concentration of ozone when it is working.

[0079] Step 4-5: Determine if the ozone concentration in the kitchen has significantly decreased. If so, proceed to step 4-6; otherwise, proceed to step 4-7.

[0080] Steps 4-6: Detect the ozone concentration M in the kitchen again and determine whether M is less than or equal to the maximum preset ozone concentration Mmax. If yes, end the process and remind the user to unlock the kitchen door or automatically unlock the kitchen door. If no, proceed to step 4-5.

[0081] Step 4-7: Control the first baffle to open the exhaust pipe and the ventilation pipe at the same time, and control the operation of the fume extraction fan. After the fume extraction fan and the cooling fan have been running together for the third preset time, proceed to step 4-6.

[0082] In this embodiment, the virus disinfection in step 3 includes two types: whole-house virus disinfection in the kitchen and targeted virus disinfection in the kitchen. The specific determination method is as follows:

[0083] Detect the distribution range of the virus and determine whether the virus is distributed in multiple locations. If so, perform whole-house virus disinfection in the kitchen; otherwise, perform targeted virus disinfection in the kitchen.

[0084] The specific steps for whole-house virus disinfection in the kitchen are as follows:

[0085] Step 3-1: Check the personnel situation in the kitchen;

[0086] Step 3-2: Determine if there is anyone in the kitchen. If yes, proceed to step 3-3; if no, remind the people in the kitchen to leave. Alternatively, you can stop the virus disinfection work directly and proceed to step 3-1 again.

[0087] Step 3-3: Detect the lock status of the kitchen door; In this embodiment, the above status is detected by a door lock sensor. Optimally, the kitchen door uses a smart door lock connected to the controller.

[0088] Step 3-4: Determine if the kitchen door is locked. If yes, proceed to step 3-5; otherwise, remind the user to lock the kitchen door or automatically lock the kitchen door, and proceed to step 3-3.

[0089] Steps 3-5: Control the opening of the first air inlet and control the operation of the exhaust fan;

[0090] Steps 3-6: The disinfection and sterilization module starts working. The working power of the disinfection and sterilization module is P0. When the working time of the disinfection and sterilization module reaches the first preset time T0, the virus disinfection work of the whole kitchen is considered to be completed. In this embodiment, P0 is the maximum working power of the disinfection and sterilization module, and T0 = 20 minutes.

[0091] In addition, targeted disinfection of the kitchen for viruses includes the following steps:

[0092] Step 3-a: Check the personnel situation in the kitchen;

[0093] Step 3-b: Determine if there is anyone in the kitchen. If yes, proceed to step 3-c; if no, remind the people in the kitchen to leave. Alternatively, you can stop the virus disinfection work directly and proceed to step 3-a again.

[0094] Step 3-c: Check the lock status of the kitchen door;

[0095] Step 3-d: Determine if the kitchen door is locked. If yes, proceed to step 3-e; otherwise, remind the user to lock the kitchen door or automatically lock the kitchen door, and proceed to step 3-b.

[0096] Step 3-e: Control the opening of the first air inlet and control the operation of the exhaust fan;

[0097] Step 3-f: The disinfection and sterilization module starts working. The working power of the disinfection and sterilization module is P1, P1 < P0. When the working time of the disinfection and sterilization module reaches the second preset time T1, the virus disinfection work of the current fixed area is considered to be completed, T1 < T0. In this embodiment, P1 is the minimum working power of the disinfection and sterilization module, and T1 = 10 minutes.

[0098] Step 3-g: Following the same method as in Steps 3-a to 3-f above, complete the virus disinfection work in all designated areas in sequence, and then determine that the virus disinfection in the kitchen is complete.

[0099] In this embodiment, the fixed-point area is detected by a position sensor; and the fixed-point area is divided into regions.

[0100] In this invention, based on the quantity and distribution area of ​​bacteria and viruses detected by the bacterial and viral monitoring sensor, when bacterial and viral colonies exhibit a multi-point, wide-area distribution, the whole-house disinfection of the kitchen is automatically initiated to achieve disinfection and purification of the entire kitchen space; when the bacterial monitoring sensor detects that the bacteria and viruses appear only in a few locations, the bacterial and viral location information fed back by the sensor is used to achieve targeted disinfection of the bacteria and viruses. When the targeted disinfection command is executed, the air outlet channel of the refrigeration system is controlled to adopt an internal circulation mode; the ultraviolet disinfection lamp is turned on to release high-concentration ozone, which, together with the air outlet fan and the movement of the air outlet blades, achieves targeted delivery of high-concentration ozone for disinfection.

[0101] During kitchen disinfection, a sentry mode is available. The controller actively detects the presence of users in the kitchen. When no users are detected, the controller activates the smart kitchen door lock to prevent users from entering and inhaling high concentrations of ozone during disinfection. If a user is detected forcibly opening the door, the range hood alarm will alert the user. Utilizing the cooling unit's duct system and air delivery structure, combined with ultraviolet disinfection lamps, high concentrations of ozone are released to achieve efficient disinfection of the kitchen. Simultaneously, sensors intelligently detect and report the location of bacteria and viruses, sending the location information back to the controller for targeted high-concentration ozone sterilization. Because of the sterilization method of ultraviolet disinfection lamps, odors are likely to remain in the space after the sterilization operation. Therefore, in this solution, after the kitchen sterilization function is completed, the controller can also control the air conditioner to start the ventilation function to solve the odor problem after the ultraviolet sterilization operation. If the odor problem cannot be solved, the controller will turn on the ventilation function of the range hood. The large air volume of the range hood itself can achieve whole-house ventilation. If the sensor detects that there is still a small amount of odor residue, the controller will remind the user to open the window to work with the ventilation function of the range hood to deodorize the entire kitchen.

[0102] The specification and claims of this invention use terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," to describe various exemplary structural parts and elements of the invention. However, these terms are used herein merely for ease of explanation and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this invention can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be considered as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A control method for a kitchen air conditioning system, the kitchen air conditioning system comprising: An air conditioning assembly (1) includes a first housing (11), a compressor (12), a condenser (13), an evaporator (14), and a sterilization module (10). The compressor (12), condenser (13), and evaporator (14) are connected by a refrigerant pipe (a). An air outlet channel (114) is provided inside the first housing (11). The evaporator (14) and the sterilization module (10) are both located in the air outlet channel (114). The air outlet channel (114) has a first air inlet (111a) and an air outlet (112) that are both connected to the fluid in the kitchen. An air outlet fan (15) is also installed in the air outlet channel (114). Along the airflow direction, the air outlet fan (15) is located downstream of the evaporator (14), and the air outlet direction of the air outlet fan (15) is towards the air outlet of the air outlet channel (114). Its features also include: The detection module is used to detect the number of bacteria and / or viruses in the kitchen; The controller is electrically connected to the detection module and the disinfection and sterilization module (10), and the controller is configured to control the disinfection and sterilization module (10) to perform corresponding operations based on the detection results of the detection module. The first housing (11) is provided with a heat dissipation fan (18) located downstream of the condenser (13) along the airflow direction. The air outlet of the heat dissipation fan (18) is connected to an exhaust pipe (19), and the air outlet direction of the heat dissipation fan (18) is aligned with the inlet of the exhaust pipe (19). The kitchen air conditioning system also includes a fume extraction assembly (2), which includes a second housing (21) and a fume extraction fan installed in the second housing (21). The top of the second housing (21) is equipped with a smoke exhaust pipe (23) that is connected to the air outlet of the smoke extraction fan (22). The smoke exhaust pipe (23) is connected to the exhaust pipe (19). The smoke exhaust pipe (23) is also provided with a rotatable first baffle (4). During the rotation of the first baffle (4), the first baffle (4) can selectively block the smoke exhaust pipe (23), block the exhaust pipe (19), or open the smoke exhaust pipe (23) and the exhaust pipe (19) at the same time. The control method for the above-mentioned kitchen air conditioning system includes the following steps: Step 1: Detect the number of bacteria and / or viruses (C) in the kitchen using a detection module; Step 2: Determine whether C is greater than or equal to the maximum preset threshold Cmax. If yes, proceed to step 3; otherwise, proceed to step 1. Step 3: Perform a virus disinfection, and after the disinfection is completed, retest the number of bacteria and / or viruses C' in the kitchen; Step 4: Determine if C' is greater than or equal to Cmax. If yes, proceed to Step 3 and perform virus disinfection again. If no, stop virus disinfection, ventilate the kitchen, and end the process. The specific steps in step 4 when C' is less than Cmax are as follows: Step 4-1: Control the disinfection and sterilization module to stop working, and control the air outlet fan to stop running; Step 4-2: Control the first baffle to block the exhaust pipe; Step 4-3: Control the operation of the cooling fan to ventilate the kitchen; Step 4-4: Detect the ozone concentration in the kitchen; Step 4-5: Determine if the ozone concentration in the kitchen has significantly decreased. If so, proceed to step 4-6; otherwise, proceed to step 4-7. Steps 4-6: Detect the ozone concentration M in the kitchen again and determine whether M is less than or equal to the maximum preset ozone concentration Mmax. If yes, end the process and remind the user to unlock the kitchen door or automatically unlock the kitchen door. If no, proceed to step 4-5. Step 4-7: Control the first baffle to open the exhaust pipe and the ventilation pipe at the same time, and control the operation of the fume extraction fan. After the fume extraction fan and the cooling fan have been running together for the third preset time, proceed to step 4-6.

2. The control method according to claim 1, characterized in that: The detection module is at least one of a bacterial detection sensor and a virus detection sensor.

3. The control method according to claim 1, characterized in that: The air outlet duct (114) also has a second air inlet (111b) that is fluidly connected to the outside of the kitchen. The air outlet duct (114) is also provided with a second baffle (6) that is rotatably constrained therein. During the rotation of the second baffle (6), the second baffle (6) can selectively close the first air inlet (111a) so that the air outlet duct (114) can take in air through the second air inlet (111b), or block the air outlet duct (114) so ​​that the air outlet duct (114) can take in air through the first air inlet (111a).

4. The control method according to claim 3, characterized in that: Along the airflow direction, the disinfection and sterilization module (10) is located upstream of the evaporator (14), and the disinfection and sterilization module (10) is located downstream of the first air inlet (111a) and the second air inlet (111b).

5. The control method according to claim 1, characterized in that: The air outlet channel (114) is also equipped with an air outlet blade (17) that can swing, located near its air outlet (112).

6. The control method according to any one of claims 1 to 5, characterized in that: The disinfection and sterilization module (10) is an ultraviolet disinfection lamp installed inside the first housing (11).

7. The control method according to claim 5, characterized in that: The virus disinfection in step 3 includes two types: whole-house virus disinfection in the kitchen and targeted virus disinfection in the kitchen. The specific determination method is as follows: Detect the distribution range of the virus and determine whether the virus is distributed in multiple locations. If so, perform whole-house virus disinfection in the kitchen; otherwise, perform targeted virus disinfection in the kitchen.

8. The control method according to claim 7, characterized in that: The specific steps for whole-house virus disinfection in the kitchen are as follows: Step 3-1: Check the personnel situation in the kitchen; Step 3-2: Determine if there is anyone in the kitchen. If so, remind the person in the kitchen to leave and return to step 3-1. If not, return to step 3-3. Step 3-3: Check the lock status of the kitchen door; Step 3-4: Determine if the kitchen door is locked. If yes, proceed to step 3-5; otherwise, remind the user to lock the kitchen door or automatically lock the kitchen door, and proceed to step 3-3. Steps 3-5: Control the opening of the first air inlet and control the operation of the exhaust fan; Steps 3-6: The disinfection and sterilization module starts working. The working power of the disinfection and sterilization module is P0. When the working time of the disinfection and sterilization module reaches the first preset time T0, the disinfection and sterilization of the whole kitchen is considered to be completed.

9. The control method according to claim 8, characterized in that: The targeted disinfection of the kitchen includes the following steps: Step 3-a: Check the personnel situation in the kitchen; Step 3-b: Determine if there is anyone in the kitchen. If so, remind the person in the kitchen to leave and proceed to step 3-a again; otherwise, proceed to step 3-c. Step 3-c: Check the lock status of the kitchen door; Step 3-d: Determine if the kitchen door is locked. If yes, proceed to step 3-e; otherwise, remind the user to lock the kitchen door or automatically lock the kitchen door, and proceed to step 3-b. Step 3-e: Control the opening of the first air inlet and control the operation of the air outlet fan to achieve targeted delivery of high-concentration ozone for disinfection in conjunction with the movement of the air outlet blades; Step 3-f: The disinfection and sterilization module starts working. The working power of the disinfection and sterilization module is P1, P1 < P0. When the working time of the disinfection and sterilization module reaches the second preset time T1, it is determined that the virus disinfection work of the current fixed area is completed, T1 < T0. Step 3-g: Following the same method as in steps 3-a to 3-f above, complete the virus disinfection work in all designated areas in sequence, and then determine that the virus disinfection in the kitchen is complete.

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