A kitchen air conditioning system and a control method thereof

Abstract

A kitchen air conditioning system and a control method thereof, comprising an extractor hood and an air conditioner host, a first fan and a first heat exchanger are installed in a first air duct of the air conditioner host, a second fan and a second heat exchanger are installed in a second air duct, a heat dissipation air outlet pipe is connected to an outlet of the second air duct, an oil fume air outlet pipe and the heat dissipation air outlet pipe are respectively connected to a first inlet and a second inlet of a first three-way valve, and an outlet of the three-way valve is connected to a total air outlet channel connected to the outside. The kitchen air conditioning system can realize independent operation of the air conditioner host or operation together with the extractor hood by controlling the first three-way valve, and can realize switching between the air conditioner internal circulation mode and the external circulation mode by controlling a second three-way valve connected to the inlet of the first air duct. The kitchen air conditioning system control method can intelligently control the internal and external mode switching according to the indoor environment temperature, intelligently adjust the water treatment efficiency according to the condensate water amount, intelligently identify the human body and start the environment sterilization accordingly, and has high intelligent degree.

Description

Technical Field

[0001] This invention relates to air conditioning systems, and more particularly to a kitchen air conditioning system and its control method. Background Technology

[0002] To enhance the summer cooking experience, air-conditioning range hoods were invented. Existing air-conditioning range hoods typically add an air conditioning component to a range hood platform, achieving both the functions of a range hood and an air conditioner. When operating in cooling mode, the condenser needs heat dissipation. Currently, the condenser is usually placed inside the smoke exhaust duct, cooled by the exhaust fan. For example, the range hood disclosed in Chinese utility model patent number 201620118025.6 (authorization announcement number CN 205481215U) places the condenser entirely within the exhaust chamber. While this utilizes the airflow to cool the condenser, over time the condenser becomes dirty, reducing its cooling efficiency. Furthermore, a purification device is usually installed before the condenser, which can obstruct the exhaust duct, increase noise, and is costly, prone to failure, and requires regular maintenance. In addition, the cooling module of the range hood cannot operate independently; it must operate simultaneously with the range hood, limiting the applicable scenarios for the cooling function. Furthermore, current air conditioning range hoods use an internal circulation mode, which has some effect on cooling the room, but cannot effectively regulate the oxygen content and humidity of the environment. Some systems use whole-house fresh air systems, improving air quality by reserving a kitchen vent; however, this system is very complex to install, requiring design and installation in the early stages of construction or development, making it unattractive to users upgrading their systems (due to the high installation difficulty). Additionally, fresh air systems have low efficiency in temperature exchange, making it difficult to effectively maintain room temperature. Moreover, air conditioners produce condensate during use. Currently, condensate drainage and independent storage tanks are commonly used to handle condensate. Drainage is restrictive for residential buildings; some users directly treat the drained water as dripping water, which is displaced by outdoor wind, resulting in unpredictable landing points and dripping noise. Independent storage tanks require frequent emptying, significantly reducing user experience, and overflowing tanks are prone to damage. In conclusion, further improvements to existing kitchen air conditioning systems are needed. Summary of the Invention

[0003] The first technical problem to be solved by the present invention is to provide a kitchen air conditioning system in view of the above-mentioned existing technology, which can be used independently or in conjunction with a range hood.

[0004] The second technical problem to be solved by the present invention is to provide a kitchen air conditioning system that can switch between internal and external circulation modes, in view of the above-mentioned existing technology.

[0005] The third technical problem to be solved by the present invention is to provide a control method for a kitchen air conditioning system that can intelligently control the switching between indoor and outdoor modes according to the indoor ambient temperature, in light of the above-mentioned existing technology.

[0006] The fourth technical problem to be solved by the present invention is to provide a control method for a kitchen air conditioning system that can intelligently adjust the water treatment efficiency according to the amount of condensate, in light of the above-mentioned existing technology.

[0007] The fifth technical problem to be solved by the present invention is to provide a control method for a kitchen air conditioning system that can intelligently identify human bodies and activate environmental disinfection accordingly, in light of the above-mentioned existing technology.

[0008] The technical solution adopted by the present invention to solve the first technical problem mentioned above is as follows: The kitchen air conditioning system includes a range hood and an air conditioning unit located outside the range hood. The range hood has an exhaust duct installed at its air outlet. The air conditioning unit includes a housing, and a compressor, a first heat exchanger, and a second heat exchanger are installed inside the housing. The compressor, the first heat exchanger, and the second heat exchanger are connected through a refrigerant pipeline. The housing is characterized by having a first air duct and a second air duct inside. A first fan and a first heat exchanger are installed in the first air duct, and a second fan and a second heat exchanger are installed in the second air duct. The first air duct has a first air duct inlet and a first air duct outlet, and the second air duct has a second air duct inlet and a second air duct outlet. A heat dissipation exhaust duct is connected to the outlet of the second air duct. The exhaust duct and the heat dissipation exhaust duct are respectively connected to the first inlet and the second inlet of a first three-way valve. The outlet of the first three-way valve is connected to a main air outlet channel connected to the outside.

[0009] The technical solution adopted by the present invention to solve the second technical problem mentioned above includes a kitchen air conditioning system that further includes a second three-way valve. The first inlet of the second three-way valve is connected to the kitchen interior, the second inlet of the second three-way valve is connected to the outside through a fresh air inlet on the kitchen wall, and the outlet of the second three-way valve is connected to the first air duct inlet.

[0010] In order to conceal the air conditioning unit, the first three-way valve, and the second three-way valve above the kitchen ceiling, the air conditioning unit, the first three-way valve, and the second three-way valve are all installed above the kitchen ceiling.

[0011] In order to purify the air entering the first air duct and the second air duct, a first filter screen is installed at the inlet of the first air duct and a second filter screen is installed at the inlet of the second air duct.

[0012] In order to collect air conditioner condensate, a condensate channel is formed at the bottom of the housing. The upstream end of the condensate channel is located below the first heat exchanger, and the downstream end of the condensate channel is located below the second heat exchanger.

[0013] In order to use the air conditioner condensate to dissipate heat from the condenser, a water tank is installed at the downstream end of the condensate channel. The water tank is equipped with a liquid level sensor, a first atomizing device, and a second atomizing device. Along the air flow direction, the first atomizing device and the second atomizing device are located upstream of the second heat exchanger.

[0014] To further utilize the air conditioner condensate to dissipate heat from the condenser, a spray assembly is also installed in the second air duct. Along the airflow direction, the spray assembly is located upstream of the second heat exchanger, with its inlet extending into the water tank and its spray nozzle facing the second heat exchanger.

[0015] In order to ensure that the cold air blown out of the first air duct can smoothly enter the kitchen, an air conditioning air outlet module is installed above the kitchen ceiling. The air inlet of the air conditioning air outlet module is connected to the outlet of the first air duct, and the air outlet of the air conditioning air outlet module is connected to the kitchen through a through hole in the kitchen ceiling.

[0016] In order to detect the indoor temperature of the kitchen, a temperature sensor is installed on the air conditioner outlet module or the kitchen ceiling to detect the indoor temperature of the kitchen.

[0017] In order to intelligently identify human bodies and perform corresponding environmental disinfection actions, an infrared sensor and disinfection components are installed on the air outlet side of the air conditioning air outlet module.

[0018] Preferably, the first heat exchanger is an evaporator, and the second heat exchanger is a condenser. In this way, when the air conditioner operates in cooling mode, the first air duct forms a cold air passage, and the second air duct forms a heat dissipation passage.

[0019] The technical solution adopted by the present invention to solve the third technical problem mentioned above, the control method of the kitchen air conditioning system includes the following steps:

[0020] S1. The user sends an air conditioning cooling command and sets the temperature K1;

[0021] S2. Determine if it is in smart mode;

[0022] If not, proceed to step S3;

[0023] If so, the temperature sensor detects the indoor ambient temperature K in the kitchen and then proceeds to step S4;

[0024] S3. Determine if it is in outer loop mode;

[0025] If so, the second three-way valve remains closed;

[0026] If not, the second three-way valve opens and remains open;

[0027] S4. Determine whether K is not greater than K1;

[0028] If so, the second three-way valve remains closed, and the external circulation mode is activated;

[0029] If not, the second three-way valve opens and remains open, the internal circulation strong cooling mode is activated; and then proceeds to step S5;

[0030] S5, Temperature sensor detects ambient temperature (K);

[0031] S6. Determine whether K is not greater than K1;

[0032] If so, the second three-way valve sends a closing command, and the external circulation module opens.

[0033] If not, return to step S5.

[0034] The technical solution adopted by the present invention to solve the fourth technical problem mentioned above, the control method of the kitchen air conditioning system includes the following steps:

[0035] s1, Air conditioning module start-up command;

[0036] S2, The liquid level sensor is turned on and working;

[0037] s3. Measure whether the water level height h in the water tank satisfies h≥H1, where H1 is the preset first water level value of the water tank;

[0038] If so, turn on the first atomizing device and proceed to step s4;

[0039] If not, return to step s2;

[0040] s4. Continue measuring the water level in the tank;

[0041] s5. Measure whether the water level height h in the water tank satisfies h≥H2, where H2 is the preset second water level value of the water tank, and H2>H1;

[0042] If not, proceed to step s6;

[0043] If so, then turn on the second atomizing device and proceed to step s7;

[0044] s6. Determine whether the water level height h in the water tank satisfies h < H1;

[0045] If so, then turn off the first atomizing device;

[0046] If not, return to step s4;

[0047] s7. Continue measuring the water level in the tank;

[0048] s8. Measure whether the water level height h in the water tank satisfies h≥H3, where H3 is the preset third water level value of the water tank, and H3>H2;

[0049] If so, activate the spray assembly and return to step s7;

[0050] If not, shut down the spray assembly and proceed to step s9;

[0051] s9. Measure whether the water level height h in the water tank satisfies h < H2;

[0052] If so, then turn off the second atomizing device and return to step s6;

[0053] If not, return to step s7.

[0054] The technical solution adopted by the present invention to solve the fifth technical problem mentioned above, the control method of the kitchen air conditioning system includes the following steps:

[0055] A1. The user initiates an environmental disinfection command;

[0056] A2. Infrared sensors are used to monitor the human body;

[0057] A3. Determine if a human body is present in the environment;

[0058] If so, the disinfection component will not be turned on. After the set time, the infrared sensor will monitor again and return to step A3.

[0059] If not, open the disinfection component and proceed to step A4;

[0060] A4. Continuous monitoring by infrared sensors;

[0061] A5. Determine if a human body is present in the environment;

[0062] If so, a pause command is issued to the disinfection component, and then proceed to step A6;

[0063] If not, return to step A4;

[0064] A6. The disinfection components are temporarily stopped working;

[0065] A7. Determine if a human body is present in the environment;

[0066] If so, proceed to step A8;

[0067] If not, the disinfection component will cancel the pause, resume operation, and return to step A4;

[0068] A8. Determine if the infrared monitoring has been triggered continuously for the set number of times;

[0069] If so, an instruction will be issued to shut down the disinfection component;

[0070] If not, wait for the set time before performing infrared monitoring again, and return to step A7.

[0071] Compared with the prior art, the advantages of the present invention are as follows: the air conditioning unit of the kitchen air conditioning system is divided into a first air duct and a second air duct inside the housing. The oil fume exhaust pipe of the range hood outlet and the heat dissipation exhaust pipe of the second air duct outlet are respectively connected to the first inlet and the second inlet of the first three-way valve. The outlet of the three-way valve is connected to the main air outlet channel connected to the outside. By controlling the opening direction of the valve plate of the first three-way valve, the air conditioning unit can work independently or work together with the range hood. By controlling the second three-way valve connected to the inlet of the first air duct, the air conditioning internal circulation mode and external circulation mode can be switched. The control method of the kitchen air conditioning system can intelligently control the switching between internal and external modes according to the indoor ambient temperature, can intelligently adjust the water treatment efficiency according to the amount of condensate, and can intelligently identify human body and activate environmental disinfection accordingly, with a high degree of intelligence. Attached Figure Description

[0072] Figure 1 This is a schematic diagram of the structure of a kitchen air conditioning system according to an embodiment of the present invention;

[0073] Figure 2 This is a schematic diagram of the structure of the air conditioner main unit according to an embodiment of the present invention;

[0074] Figure 3 This is a schematic diagram of the internal structure of the air conditioner main unit according to an embodiment of the present invention;

[0075] Figure 4 This is a schematic diagram of the air conditioner outlet module according to an embodiment of the present invention;

[0076] Figure 5 This is a logic diagram of the control method for switching between the inner and outer loop modules according to an embodiment of the present invention;

[0077] Figure 6 This is a schematic diagram of the control method for condensate utilization according to an embodiment of the present invention;

[0078] Figure 7 This is a schematic diagram of the control method of the disinfection component in an embodiment of the present invention. Detailed Implementation

[0079] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0080] like Figures 1 to 4As shown, the kitchen air conditioning system of this embodiment includes a range hood 1 and an air conditioning unit 2. The range hood 1 is installed below the kitchen ceiling 8, and an exhaust duct 3 is installed at the exhaust outlet of the range hood, passing upward through the kitchen ceiling 8. The air conditioning unit 2 is installed above the kitchen ceiling 8, that is, the air conditioning unit 2 and the range hood 1 adopt a separate structure.

[0081] The air conditioning unit 2 includes a housing 21. Inside the housing 21 are a compressor 22, a first heat exchanger 23, and a second heat exchanger 24. The compressor 22, the first heat exchanger 23, and the second heat exchanger 24 are connected by a refrigerant pipe 25. The compressor 22, the first heat exchanger 23, and the second heat exchanger 24 constitute an air conditioning assembly. Inside the housing 21 are a first air duct 211 and a second air duct 212. The first air duct 211 houses a first fan 26 and a first heat exchanger 23, while the second air duct 212 houses a second fan 27 and a second heat exchanger 24. In cooling mode, the first air duct 211 forms a cold air passage, and the second air duct 212 forms a heat dissipation passage. The first heat exchanger 23 is an evaporator, and the second heat exchanger 24 is a condenser. In heating mode, the first heat exchanger 23 is a condenser, the second heat exchanger 24 is an evaporator, the first air duct 211 forms a hot air passage, and the second air duct 212 forms a cold air dissipation passage.

[0082] The first air duct 211 has a first air duct inlet 2111 and a first air duct outlet 2112. The first air duct inlet 2111 is equipped with a first filter 28, and the first air duct outlet 2112 is equipped with an air conditioning outlet module 7. The air conditioning outlet module 7 is located above the air outlet ceiling 8 and is connected to the kitchen interior through a through hole in the kitchen ceiling 8. The second air duct 212 has a second air duct inlet 2121 and a second air duct outlet 2122. The second air duct inlet 2121 is equipped with a second filter 29, and the second air duct outlet 2122 is externally connected to a heat dissipation outlet duct 4.

[0083] A first three-way valve 51 is also installed on the kitchen ceiling 8. The outlet of the fume exhaust pipe 3 is connected to the first inlet of the first three-way valve 51, and the outlet of the heat dissipation exhaust pipe 4 is connected to the second inlet of the first three-way valve 51. The outlet of the first three-way valve 51 is connected to the main exhaust duct 6, which passes through the kitchen wall 9 and connects to the outside. By controlling the opening and closing of the valve plate of the first three-way valve 51, the fume exhaust duct can be connected to the main exhaust duct 6, or the second air duct 212 can be connected to the main exhaust duct 6, or both the fume exhaust duct and the second air duct 212 can be connected to the main exhaust duct 6.

[0084] A second three-way valve 52 is installed above the kitchen ceiling. The first inlet of the second three-way valve 52 is connected to the kitchen interior, and the second inlet is connected to the outside through the fresh air inlet 91 on the kitchen wall 9. The outlet of the second three-way valve 52 is connected to the first air duct inlet 2111. By controlling the opening and closing of the valve plate of the second three-way valve 51, the first air duct inlet 2111 can be connected to either the kitchen interior or the kitchen exterior, thus switching between internal and external circulation modes. Both the first three-way valve 51 and the second three-way valve 52 are electric valves, and their valve plates are opened or closed by a motor. Electric valves are a conventional design, and their specific structure will not be described in detail here.

[0085] In this embodiment, the air conditioning outlet module 7 is equipped with a temperature sensor 71. The temperature sensor 71 is used to detect the ambient temperature in the kitchen. Besides being installed on the air conditioning outlet module 7, it can also be installed on the kitchen ceiling 8 or in other locations within the kitchen. An infrared sensor 72 and a disinfection component 73 are installed on the air outlet side of the air conditioning outlet module 7. The infrared sensor 72 is used to monitor whether anyone is present in the area near the air conditioning outlet, and the disinfection component 73 is used to disinfect the air in the environment. The air conditioning outlet module 7 has an air outlet panel 74 through which air is delivered into the kitchen. Additionally, a negative ion module 75 is installed on the air conditioning outlet module 7 to make the airflow from the air outlet panel 74 more comfortable.

[0086] like Figure 5 As shown, this kitchen air conditioning system can switch between internal and external circulation modes. The specific control method includes the following steps:

[0087] S1. The user sends an air conditioning cooling command and sets the temperature K1;

[0088] S2. Determine if it is in smart mode;

[0089] If not, proceed to step S3;

[0090] If so, the temperature sensor 71 detects the indoor temperature K of the kitchen and then proceeds to step S4;

[0091] S3. Determine if it is in outer loop mode;

[0092] If so, the second three-way valve 52 remains closed;

[0093] If not, the second three-way valve 52 opens and remains open;

[0094] S4. Determine whether K is not greater than K1;

[0095] If so, the second three-way valve 52 remains closed, and the external circulation mode is activated;

[0096] If not, the second three-way valve 52 opens and remains open, the internal circulation strong cooling mode is activated; and then proceeds to step S5;

[0097] S5, Temperature sensor 71 detects ambient temperature (K);

[0098] S6. Determine whether K is not greater than K1;

[0099] If so, the second three-way valve 52 sends a closing command, and the external circulation module opens;

[0100] If not, return to step S5.

[0101] As can be seen from the above control method, when the user turns on the air conditioner, because the temperature in the kitchen room is already high, directly introducing fresh air at this time will result in a longer cooling cycle (the cooling capacity required to lower the external circulation fresh air temperature K1 to the target temperature K2 is much larger than in the continuous internal circulation return air mode). Therefore, the primary goal of the solution is to lower the temperature, so an internal circulation mode is adopted. The second three-way valve 52 is in the internal circulation mode. The indoor return air enters the air conditioning unit 2 through the second three-way valve 52, then passes through the first heat exchanger 23 and is then sent into the room from the air outlet panel 74 of the air conditioning outlet module 7. The purpose of the recirculation is to quickly lower the room temperature to the user-set target value. When the indoor temperature reaches the user-set target value, the temperature sensor 71 under the air outlet panel 74 receives a signal and sends a command to the second three-way valve 52. The state of the second three-way valve 52 changes from internal circulation mode to external circulation mode. This is an intelligent switch that does not require manual intervention. When the external circulation mode is activated, fresh air is supplied from the outside, which can effectively control indoor temperature, humidity, oxygen content and other indicators. Users can also cancel the intelligent internal and external circulation mode and use the independent internal circulation or independent external circulation mode that they can choose themselves.

[0102] Furthermore, when the user is not using the range hood 1, the first three-way valve 51 remains in the closed state of the exhaust pipe 3. The second three-way valve 52 switches states according to the user's set internal or external circulation mode or smart mode. The second three-way valve 52 only has closed and open states. The closed state corresponds to the external circulation and closed mode, and the open state corresponds to the internal circulation mode. The first three-way valve 51 has three states. In addition to the closed and open states, there is an additional dual exhaust mode. When the user's range hood is working and the air conditioner is off, the first three-way valve 51 is in the fully open state. At this time, the range hood speed is relatively low. When the air conditioner and the range hood are both on, the first three-way valve 51 is in dual exhaust mode. The opening angle remains unchanged, and the range hood speed is relatively high. The dual exhaust promotes each other and can reduce their respective resistance.

[0103] In this embodiment, the air conditioner operates in cooling mode, and condensate will condense on the surface of the first heat exchanger 23, i.e., the evaporator. A condensate channel 210 is formed at the bottom of the housing 21, with its upstream end located below the first heat exchanger 23 and its downstream end located below the second heat exchanger 24. A water tank 213 is installed at the downstream end of the condensate channel 210, and a liquid level sensor 214, a first atomizing device 215, a second atomizing device 216, and a spray assembly 217 are installed inside the water tank 213. Along the airflow direction, the first atomizing device 215 and the second atomizing device 216 are located upstream of the second heat exchanger 24, and the spray assembly 217 is located upstream of the second heat exchanger 24. The inlet of the spray assembly 217 extends into the water tank 213, and the spray nozzle of the spray assembly 217 faces the second heat exchanger 24. The condensate on the surface of the first heat exchanger 23 flows into the water tank 213 through the condensate channel 210. The first atomizing device 215 and the second atomizing device 216 can atomize the condensate. Under the action of the second fan 27, the atomized condensate is discharged through the second air duct 212. The spray assembly 217 sprays the second heat exchanger 24, i.e., the condenser, to cool the condenser and improve its heat exchange efficiency.

[0104] like Figure 6 As shown, the control method for condensate treatment in this kitchen air conditioning system includes the following steps:

[0105] s1, Air conditioning module start-up command;

[0106] S2, Liquid level sensor 214 is turned on and working;

[0107] s3. Measure whether the water level height h of water tank 213 satisfies h≥H1, where H1 is the preset first water level value of water tank 213;

[0108] If so, then turn on the first atomizing device 215 and proceed to step s4;

[0109] If not, return to step s2;

[0110] s4. Continue measuring the water level in tank 213;

[0111] s5. Measure whether the water level height h of water tank 213 satisfies h≥H2, where H2 is the preset second water level value of water tank 213, and H2>H1;

[0112] If not, proceed to step s6;

[0113] If so, then turn on the second atomizing device 216 and proceed to step s7;

[0114] s6. Determine whether the water level height h in water tank 213 satisfies h < H1;

[0115] If so, then turn off the first atomizing device 215;

[0116] If not, return to step s4;

[0117] s7. Continue measuring the water level in tank 213;

[0118] s8. Measure whether the water level height h of water tank 213 satisfies h≥H3, where H3 is the preset third water level value of water tank 213, and H3>H2;

[0119] If so, then activate the spray assembly 217 and return to step s7;

[0120] If not, shut down the spray assembly 217 and proceed to step s9;

[0121] s9. Measure whether the water level height h in water tank 213 satisfies h < H2;

[0122] If so, then turn off the second atomizing device 216 and then return to step s6;

[0123] If not, return to step s7.

[0124] As can be seen from the above control method, the water tank 213 sends a command according to the liquid level sensor 214. When the liquid level is H1, the first atomizing device 215 is turned on. When the liquid level reaches H2, the second atomizing device 216 is turned on. The two atomizing devices work simultaneously, and the water mist is drawn into the second heat exchanger 24, i.e., the condenser. The water mist contacts the second heat exchanger 24, evaporates and absorbs heat, causing the temperature of the second heat exchanger 24 to drop. The water vapor is then sent into the heat dissipation outlet pipe 4 by the second fan 27. When the amount of condensate produced is large, the amount of condensate processed under the simultaneous operation of the two atomizing devices is less than the amount of condensate produced. When the liquid level reaches H3, the spray assembly 217 is operated, spraying water directly onto the second heat exchanger 24 to ensure timely treatment of condensate.

[0125] like Figure 7 As shown, the control method for the disinfection component of this kitchen air conditioning system includes the following steps:

[0126] A1. The user initiates an environmental disinfection command;

[0127] A2. Infrared sensor 72 monitors the human body;

[0128] A3. Determine if a human body is present in the environment;

[0129] If so, the disinfection component 73 will not be turned on. After the set time, the infrared sensor 72 will monitor again and return to step A3.

[0130] If not, open the disinfection component 73 and proceed to step A4;

[0131] A4. Infrared sensor 72 continuously monitors;

[0132] A5. Determine if a human body is present in the environment;

[0133] If so, a pause command is issued to the disinfection component 73, and then proceed to step A6;

[0134] If not, return to step A4;

[0135] A6. Disinfection component 73 is temporarily out of service;

[0136] A7. Determine if a human body is present in the environment;

[0137] If so, proceed to step A8;

[0138] If not, the disinfection component 73 will cancel the pause, resume operation, and return to step A4;

[0139] A8. Determine if the infrared monitoring has been triggered continuously for the set number of times;

[0140] If so, an instruction will be issued to shut down the disinfection component 73;

[0141] If not, wait for the set time before performing infrared monitoring again, and return to step A7.

[0142] As can be seen from the above control method, when the user initiates an environmental disinfection command, the infrared sensor 72 on the air conditioner outlet module 7 operates. It detects the presence of a human body in the room but does not send a start command to the disinfection component 73. Instead, it checks every minute until no human body is detected in the environment, at which point it sends a start command to the disinfection component 73. The disinfection component 73 then disinfects the air in the environment. Simultaneously, the infrared sensor 72 continuously monitors human characteristics. When a human body enters the environment, it immediately sends a pause command to the disinfection component 73 and checks every 10 seconds until no human body is detected in the environment. The disinfection component 73 then continues operating. If human characteristics are still present after 30 checks, a stop command is sent to the disinfection component.

Claims

1. A kitchen air conditioning system, comprising a range hood (1) and an air conditioning unit (2) disposed outside the range hood (1), wherein the range hood (1) is provided with an exhaust duct (3), and the air conditioning unit (2) comprises a housing (21), wherein a compressor (22), a first heat exchanger (23), and a second heat exchanger (24) are disposed inside the housing (21), and the compressor (22), the first heat exchanger (23), and the second heat exchanger (24) are connected by a refrigerant pipe (25), characterized in that: The housing (21) is internally divided into a first air duct (211) and a second air duct (212). The first air duct (211) is equipped with a first fan (26) and a first heat exchanger (23). The second air duct (212) is equipped with a second fan (27) and a second heat exchanger (24). The first air duct (211) has a first air duct inlet (2111) and a first air duct outlet (2112). The second air duct (212) has a second air duct inlet (2121) and a second air duct outlet (2122). The second air duct outlet (2122) is externally connected to a heat dissipation exhaust pipe (4). The oil fume exhaust pipe (3) and the heat dissipation exhaust pipe (4) are respectively connected to the first three-way valve (51). The first inlet and the second inlet are connected. The outlet of the first three-way valve (51) is connected to the main air outlet channel (6) connected to the outside. It also includes a second three-way valve (52). The first inlet of the second three-way valve (52) is connected to the kitchen room. The second inlet of the second three-way valve (52) is connected to the outside through the fresh air inlet (91) on the kitchen wall (9). The outlet of the second three-way valve (52) is connected to the first air duct inlet (2111). A condensate channel (210) is formed at the bottom of the housing (21). The upstream end of the condensate channel (210) is located below the first heat exchanger (23), and the downstream end of the condensate channel (210) is located below the second heat exchanger (24).

2. The kitchen air conditioning system according to claim 1, characterized in that: The air conditioning unit (2), the first three-way valve (51), and the second three-way valve (52) are all installed above the kitchen ceiling (8).

3. The kitchen air conditioning system according to claim 1, characterized in that: The first air duct inlet (2111) is equipped with a first filter screen (28), and the second air duct inlet (2121) is equipped with a second filter screen (29).

4. The kitchen air conditioning system according to claim 1, characterized in that: A water tank (213) is installed at the downstream end of the condensate channel (210). A liquid level sensor (214), a first atomizing device (215), and a second atomizing device (216) are installed in the water tank (213). Along the air flow direction, the first atomizing device (215) and the second atomizing device (216) are located upstream of the second heat exchanger (24).

5. The kitchen air conditioning system according to claim 4, characterized in that: A spray assembly (217) is also installed in the second air duct (212). Along the air flow direction, the spray assembly (217) is located upstream of the second heat exchanger (24). The water inlet of the spray assembly (217) extends into the water tank (213), and the spray nozzle of the spray assembly (217) faces the second heat exchanger (24).

6. The kitchen air conditioning system according to any one of claims 1 to 5, characterized in that: An air conditioning outlet module (7) is provided above the kitchen ceiling (8). The air inlet of the air conditioning outlet module (7) is connected to the outlet of the first air duct (211). The air outlet of the air conditioning outlet module (7) is connected to the kitchen interior through the through hole on the kitchen ceiling (8).

7. The kitchen air conditioning system according to claim 6, characterized in that: A temperature sensor (71) for detecting the indoor temperature of the kitchen is installed on the air conditioner outlet module (7) or on the kitchen ceiling (8).

8. The kitchen air conditioning system according to claim 6, characterized in that: An infrared sensor (72) and a disinfection component (73) are installed on the air outlet side of the air conditioning air outlet module (7).

9. The kitchen air conditioning system according to claim 1, characterized in that: The first heat exchanger (23) is an evaporator, and the second heat exchanger (24) is a condenser.

10. A control method for a kitchen air conditioning system, applicable to the kitchen air conditioning system according to any one of claims 1 to 9, the kitchen air conditioning system comprising a temperature sensor (71) for detecting the indoor ambient temperature of the kitchen, characterized in that... The control method includes the following steps: S1. The user sends an air conditioning cooling command and sets the temperature K1; S2. Determine if it is in smart mode; If not, proceed to step S3; If so, the temperature sensor (71) detects the indoor temperature K of the kitchen and then proceeds to step S4; S3. Determine if it is in outer loop mode; If so, the second three-way valve (52) remains closed; If not, the second three-way valve (52) opens and remains open; S4. Determine whether K is not greater than K1; If so, the second three-way valve (52) remains closed, and the external circulation mode is activated; If not, the second three-way valve (52) opens and remains open, the internal circulation strong cooling mode is activated; and then proceeds to step S5; S5, Temperature sensor (71) detects ambient temperature K; S6. Determine whether K is not greater than K1; If so, the second three-way valve (52) sends a closing command, and the external circulation module opens; If not, return to step S5.

11. A control method for a kitchen air conditioning system, applicable to the kitchen air conditioning system of claim 5, the control method comprising the following steps: s1, Air conditioning module start-up command; s2, The liquid level sensor (214) is turned on; s3. Measure whether the water level height h of the water tank (213) satisfies h≥H1, where H1 is the preset first water level value of the water tank (213); If so, the first atomizing device (215) is turned on, and step s4 is entered; If not, return to step s2; s4. Continue measuring the water level in tank (213); s5. Measure whether the water level height h of the water tank (213) satisfies h≥H2, where H2 is the preset second water level value of the water tank (213), and H2>H1; If not, proceed to step s6; If so, the second atomizing device (216) is turned on, and then the process proceeds to step s7; s6. Determine whether the water level height h of water tank (213) satisfies h < H1; If so, then turn off the first atomizing device (215); If not, return to step s4; s7. Continue measuring the water level in tank (213); s8. Measure whether the water level height h of the water tank (213) satisfies h≥H3, where H3 is the preset third water level value of the water tank (213), and H3>H2; If so, then activate the spray assembly (217) and return to step s7; If not, shut down the spray assembly (217) and proceed to step s9; s9. Measure whether the water level height h of water tank (213) satisfies h < H2; If so, then turn off the second atomizing device (216) and then return to step s6; If not, return to step s7.

12. A control method for a kitchen air conditioning system, applicable to the kitchen air conditioning system of claim 8, the control method comprising the following steps: A1. The user initiates an environmental disinfection command; A2. Infrared sensor (72) monitors the human body; A3. Determine if a human body is present in the environment; If so, the disinfection component (73) will not be turned on. After the set time, the infrared sensor (72) will monitor again and return to step A3. If not, open the disinfection component (73) and proceed to step A4; A4. Infrared sensor (72) continuously monitors; A5. Determine if a human body is present in the environment; If so, a pause command is issued to the disinfection component (73), and then step A6 is entered; If not, return to step A4; A6. The disinfection component (73) is temporarily out of service; A7. Determine if a human body is present in the environment; If so, proceed to step A8; If not, the disinfection component (73) will cancel the pause, continue working, and return to step A4; A8. Determine if the infrared monitoring has been triggered continuously for the set number of times; If so, an instruction is issued to shut down the disinfection component (73); If not, wait for the set time before performing infrared monitoring again, and return to step A7.

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