A kitchen air conditioning system and a control method thereof

Abstract

The present application relates to a kind of kitchen air conditioning system and its control method, kitchen air conditioning system includes: air conditioning component, including first casing and by the intercommunication of refrigerant pipeline, compressor, condenser and evaporator, first casing inside is equipped with air outlet passage, evaporator is located in air outlet passage, air outlet passage has air inlet and air outlet, air outlet and kitchen room are fluid flow with each other, first casing is equipped with the heat dissipation port of external connection exhaust pipe;Exhaust hood component, including second casing and installing in second casing exhaust hood fan, second casing top is equipped with the exhaust pipe of being connected with the air outlet of exhaust hood fan, the exhaust pipe is connected with exhaust pipe;Characterized in that it further includes first baffle, in the mode of rotatably constrained in exhaust pipe, in the process of first baffle rotation, first baffle can selectively block exhaust pipe, block exhaust pipe or simultaneously open exhaust pipe and exhaust pipe.This kitchen air conditioning system can improve dehumidification efficiency.

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] However, existing cooling range hoods have the following limitations: First, current cooling range hoods on the market only have cooling functions and no separate dehumidification function. When the humidity is high and the temperature is not high, users who want to turn on the dehumidification function can only turn on the cooling function, which blows out cold air, resulting in a poor user experience and low dehumidification efficiency, which is time-consuming and energy-intensive. Second, due to the special environment of the kitchen, the kitchen floor or cooking countertop is often wet. Current technology basically has no separate drying method. Usually, users use a mop to sweep the water on the kitchen floor and a cloth to wipe the water stains on the kitchen countertop. This method is time-consuming and laborious. Adding a dryer would increase costs and space constraints, and the drying effect and maintenance would cause additional problems.

[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 improve dehumidification efficiency, 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 has a better dehumidification effect than the prior art.

[0008] The third technical problem to be solved by the present invention is to provide a control method for the kitchen air conditioning system described above, which is in contrast to the prior art, and this control enables the drying of water stains on damp floors or kitchen countertops, thereby improving the user experience.

[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, and an evaporator. The compressor, condenser, and evaporator are connected by a refrigerant pipeline. An air outlet channel is provided inside the first housing. The evaporator is located in the air outlet channel. The air outlet channel has an air inlet and an air outlet. The air outlet is in direct flow with the kitchen interior. A heat dissipation vent with an external exhaust pipe is provided on the first housing.

[0011] The fume extraction assembly includes a second housing and a fume extraction fan installed inside the second housing. The top of the second housing is equipped with a smoke exhaust pipe that communicates with the air outlet of the fume extraction fan, and the smoke exhaust pipe is connected to an exhaust duct.

[0012] Its features also include

[0013] The first baffle is rotatably constrained within the exhaust pipe. During the rotation of the first baffle, the first baffle can selectively block the exhaust pipe, block the vent pipe, or simultaneously open the exhaust pipe and the vent pipe.

[0014] To achieve the blocking of the smoke exhaust pipe and the vent pipe, a three-way valve is provided in the middle of the smoke exhaust pipe. The three-way valve has a first inlet, a second inlet, and an outlet. The first inlet and outlet of the three-way valve are both connected to the smoke exhaust pipe, and the second inlet of the three-way valve is connected to the vent outlet of the vent pipe. The first baffle is constrained within the three-way valve. During the rotation of the first baffle, the first baffle has the following three states:

[0015] In the first state, the first baffle closes the second inlet to block the exhaust pipe;

[0016] In the second state, the first baffle closes the first inlet to block the exhaust pipe.

[0017] In the third state, the first baffle rotates to a position between the first inlet and the second inlet, and both the first inlet and the second inlet are opened, so that the first baffle can simultaneously open the smoke exhaust pipe and the air exhaust pipe.

[0018] In order to enable the first baffle to have the above three states, the three-way valve is square and hollow inside. The first inlet and outlet are respectively located on the upper and lower walls of the three-way valve, and the second inlet is located on one side wall of the three-way valve. The first baffle has a first side and a second side that are arranged opposite to each other. The first side of the first baffle extends along the width direction of the three-way valve, and the first side of the first baffle is rotatably constrained at the position where the wall where the first inlet is located intersects with the wall where the second inlet is located. The second side is a free side.

[0019] To facilitate the rotation of the first baffle, grooves extending along the rotation path of the two ends of the first baffle are provided on the inner side walls before and after the three-way valve. The two ends of the second side of the first baffle are also provided with rotating shafts that can be inserted into the grooves. During the rotation of the first baffle, the rotating shafts can always slide in the grooves so that the first baffle is in the first state, the second state or the third state.

[0020] To ensure the sealing of the first baffle when closing the first inlet and / or the second inlet, preferably, the second side of the first baffle is provided with a protrusion along its width direction, and the wall of the three-way valve where the first inlet and / or the second inlet are located is provided with a notch for the protrusion to be inserted to form a sealing connection.

[0021] To achieve automatic rotation of the first baffle, a first drive mechanism is also included to drive the first baffle to rotate. The first drive mechanism is a first motor that is driven and connected to the first side of the first baffle. This first motor is typically a geared motor, which controls the opening and closing angle of the first baffle.

[0022] In order to enable the air conditioning unit to both introduce fresh outdoor air and adopt an internal circulation cooling mode, the air inlet includes a first air inlet that is in fluid communication with the indoor area of ​​the kitchen and a second air inlet that is in fluid communication with the outdoor area of ​​the kitchen.

[0023] Preferably, the top of the air outlet duct is open, the second air inlet corresponds to the top of the air outlet duct, and the first air inlet is located on the side wall of the air outlet duct.

[0024] In order to achieve the switching between the air conditioning component introducing outdoor fresh air and the internal circulation cooling mode, a second baffle is also provided in the air outlet duct, which 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.

[0025] In order to enable the second baffle to selectively close the first air inlet or block the air outlet, one side of the second baffle is constrained to the wall of the air outlet where the first air inlet is located and is located upstream of the first air inlet, while the other side of the second baffle is a free end.

[0026] Furthermore, it also includes a second drive mechanism for driving the second baffle to rotate, the second drive mechanism being a second motor connected to the second baffle drive.

[0027] 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.

[0028] 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.

[0029] In order to achieve heat dissipation within the first housing, a heat dissipation fan is provided in the first housing along the airflow direction, located downstream of the condenser, and the air outlet direction of the heat dissipation fan is aligned with the inlet of the exhaust pipe.

[0030] To make the kitchen air conditioning system compact and aesthetically pleasing, the first housing is located on top of the second housing, and the first housing has a perforation for at least part of the exhaust pipe to extend out.

[0031] The technical solution adopted by the present invention to solve the second technical problem mentioned above is: a control method for the kitchen air conditioning system as described above, characterized by comprising the following steps:

[0032] Step 1: Detect the current humidity in the kitchen using a humidity sensor, and proceed to Step 2 if dehumidification is needed;

[0033] Step 2: Determine whether the current kitchen humidity H1 is greater than or equal to the maximum preset humidity Hmax. If so, detect the outdoor air humidity H2 through the second air inlet and proceed to Step 3; otherwise, proceed to Step 8.

[0034] Step 3: Determine if H2 is greater than or equal to H1. If yes, check the opening and closing status of the kitchen window and proceed to Step 4; otherwise, proceed to Step 5.

[0035] Step 4: Determine if the kitchen window is currently open. If so, remind the user to close the window and proceed to Step 5; otherwise, proceed to Step 5.

[0036] Step 5: Control the second baffle to block the air outlet channel, and allow the air outlet channel to draw in air through the first air inlet;

[0037] Step 6: Control the first baffle to block the smoke exhaust pipe and open the exhaust pipe;

[0038] Step 7: Determine if the current humidity in the kitchen has decreased significantly. If so, continue dehumidifying in steps 5 and 6 and proceed to step 2. If not, check the humidity in the dining room and dehumidify the kitchen according to the humidity level in the dining room, then end the process.

[0039] Step 8: Inspect the water stains on the kitchen floor and countertop, and dehumidify the kitchen according to the water stains. End.

[0040] Furthermore, the specific steps for dehumidifying the kitchen in step 7, based on the humidity level of the restaurant, are as follows:

[0041] Step 7-1: Detect the humidity H3 in the restaurant and determine whether H3 is greater than or equal to H1. If yes, proceed to step 7-2; otherwise, proceed to step 7-3.

[0042] Step 7-2: Detect the closed status of the kitchen door. If the kitchen door is closed, increase the power of the exhaust fan and end the process. If not, remind the user to close the kitchen door, increase the power of the exhaust fan, and end the process.

[0043] Step 7-3: Check the closed status of the kitchen door to determine if it is open. If so, control the first baffle to open the exhaust pipe and the vent pipe simultaneously, and control the range hood to run. If not, remind the user to open the kitchen door, control the first baffle to open the exhaust pipe and the vent pipe simultaneously, and control the range hood to run.

[0044] To address the third technical problem mentioned above, the specific steps for dehumidifying the kitchen in step 8, based on the water stains on the kitchen floor and cooking countertop, are as follows:

[0045] Step 8-1: Check if there are obvious water stains on the kitchen floor or cooking countertop. If so, proceed to step 8-2; otherwise, remain in standby mode and end.

[0046] Step 8-2: Detect the outdoor air humidity H2 at the second air inlet and determine whether H2 is greater than or equal to H1. If so, control the second baffle to block the air outlet channel, allowing air to enter through the first air inlet, and proceed to step 8-3. If not, control the second baffle to close the first air inlet, allowing air to enter through the second air inlet, and proceed to step 8-3.

[0047] Step 8-3: Control the operation of the exhaust fan;

[0048] Step 8-4: Wait for the exhaust fan to operate for the preset time, then proceed to step 8-5;

[0049] Step 8-5: Determine if the water stains on the kitchen floor or cooking countertop have significantly decreased. If so, proceed to step 8-1; otherwise, increase the power of the exhaust fan and proceed to step 8-4.

[0050] Furthermore, in step 8-3, when the outlet fan is working, the outlet blades are also controlled to swing to achieve targeted dehumidification.

[0051] Compared with the prior art, the advantages of the present invention are as follows: By setting a first baffle that can be rotatably constrained within the exhaust pipe, the first baffle can selectively block the exhaust pipe, block the vent pipe, or simultaneously open both the exhaust pipe and the vent pipe. Thus, when the exhaust pipe is blocked by the first baffle, only the exhaust pipe operates, which is suitable for the exhaust of fumes when the air conditioning components are not in operation. When the exhaust pipe is blocked by the first baffle, the flow of fumes is shut off, and the vent pipe is opened to assist the refrigeration system in heat dissipation and dehumidification. When the exhaust pipe and the vent pipe are opened simultaneously by the first baffle, the exhaust fan and the refrigeration system can perform heat dissipation and dehumidification simultaneously, improving dehumidification efficiency. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of the kitchen air conditioning system in an embodiment of the present invention;

[0053] Figure 2 for Figure 1 Another perspective structural diagram;

[0054] Figure 3 for Figure 1 Partial structural diagram (first casing omitted);

[0055] Figure 4 for Figure 1 Partial sectional view (second casing omitted);

[0056] Figure 5 This is a cross-sectional view of the three-way valve and the first baffle after assembly in an embodiment of the present invention;

[0057] Figure 6 This is a schematic diagram of the structure of the first baffle in an embodiment of the present invention;

[0058] Figure 7 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 1-6 As shown, the kitchen air conditioning system in this embodiment includes an air conditioning component 1, an oil fume extraction component 2, and a first baffle 4.

[0061] 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 principles will not be elaborated upon here. The fume extraction component 2 includes a second housing 21 and a fume extraction fan (not shown in the figure) 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. This fume extraction component 2 uses a conventional fume extraction fan. The first housing 11 is located on top of the second housing 21, and the first housing 11 has a perforation (not shown in the figure) 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.

[0062] 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. The air outlet 112 is in airflow with the kitchen interior. An air outlet fan 15 is also installed inside the air outlet duct 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 duct 114. Near its air outlet 112, the air outlet duct 114 also has 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. 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 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 4 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] 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 4 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.

[0064] The aforementioned 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. For example... Figure 4 and 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.

[0065] like Figure 4 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, as shown. Figure 6 As shown, the first baffle 4 has a first side 41 and a second side 42 disposed opposite to each other. The first side 41 of the first baffle 4 extends along the width direction of the three-way valve 3, and the first side 41 of the first baffle 4 is rotatably constrained at the position where the wall surface where the first inlet 31 is located intersects with the wall surface where the second inlet 32 ​​is located. The second side 42 is a free side. Thus, when the first baffle 4 rotates to be in a first state when it is completely attached to the side wall surface of the three-way valve 3 where the second inlet 32 ​​is located, it is in a second state when the first baffle 4 rotates to be completely attached to the lower wall surface of the three-way valve 3 (e.g., ...). Figure 4 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°.

[0066] like Figures 4-6 As shown, in this embodiment, grooves 34 extending along the rotation path of the two ends of the first baffle 4 are provided on the inner sidewalls before and after the three-way valve 3. The second sidewall 42 of the first baffle 4 is also provided with rotating shafts 43 that can be inserted into the grooves 34. During the rotation of the first baffle 4, the rotating shafts 43 can always slide within the grooves 34, keeping the first baffle 4 in the first, second, or third state as described above. Additionally, the second sidewall 42 of the first baffle 4 is provided with a protrusion 44 along its width direction. The wall surface of the three-way valve 3 where the first inlet 31 and / or the second inlet 32 ​​are located is provided with a recess 35 for the protrusion 44 to be inserted into to form a sealing connection, thereby improving the sealing effect. Figure 5 As shown, the kitchen air conditioning system also includes a first drive mechanism for driving the first baffle 4 to rotate. The first drive mechanism is a first motor 5 that is driven and connected to the first baffle 4. The power output shaft of the first motor 5 is driven and connected to the first side 41 of the first baffle 4. The drive connection can be a direct connection, an indirect connection, or a transmission connection.

[0067] like Figure 1 , 2 As shown in Figure 4, the air inlet in this embodiment includes a first air inlet 111a that is fluidly connected to the interior of the kitchen and a second air inlet 111b that is fluidly connected to 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 located on the side wall of the air outlet duct 114. The air intake through the first air inlet 111a is referred to as the internal circulation mode, and the air intake through the second air inlet 111b is referred to as the fresh air mode.

[0068] 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.

[0069] like Figure 7 As shown, the control method of the above-mentioned kitchen air conditioning system in this embodiment includes the following steps:

[0070] Step 1: Detect the current humidity in the kitchen using a humidity sensor, and proceed to Step 2 if dehumidification is needed; otherwise, keep the kitchen air conditioning system in standby mode.

[0071] In this embodiment, the kitchen humidity corresponds to the humidity in the detected air.

[0072] Step 2: Determine whether the current kitchen humidity H1 is greater than or equal to the maximum preset humidity Hmax. If so, detect the outdoor air humidity H2 through the second air inlet and proceed to Step 3; otherwise, proceed to Step 8.

[0073] Step 3: Determine if H2 is greater than or equal to H1. If yes, check the opening and closing status of the kitchen window and proceed to Step 4; otherwise, proceed to Step 5.

[0074] In this embodiment, an opening and closing sensor is installed on the kitchen window, and a controller is connected to the opening and closing sensor to obtain the window's opening and closing status. Alternatively, an image acquisition module can be used to acquire an image of the kitchen window, and the controller can process the image to identify the opening and closing status of the kitchen window. Other existing technologies can also be adopted.

[0075] Step 4: Determine if the kitchen window is currently open. If so, remind the user to close the window and proceed to Step 5; otherwise, proceed to Step 5.

[0076] Step 5: Control the second baffle to block the air outlet channel, and allow the air outlet channel to draw in air through the first air inlet;

[0077] Step 6: Control the first baffle to block the smoke exhaust pipe and open the exhaust pipe;

[0078] In this embodiment, the corresponding action is to control the first baffle to rotate to the second state;

[0079] Step 7: Determine if the current humidity in the kitchen has decreased significantly. If so, continue dehumidifying in steps 5 and 6 and proceed to step 2. If not, check the humidity in the dining room and dehumidify the kitchen according to the humidity level in the dining room, then end the process.

[0080] In this embodiment, the method for determining a significant decrease in kitchen humidity is as follows:

[0081] If the decrease in kitchen humidity exceeds a preset value, which is set according to actual needs, it is determined that the humidity has decreased significantly; otherwise, it is determined that the humidity has not decreased significantly.

[0082] In this embodiment, the specific steps for dehumidifying the kitchen based on the humidity level of the restaurant are as follows:

[0083] Step 7-1: Detect the humidity H3 in the restaurant and determine whether H3 is greater than or equal to H1. If yes, proceed to step 7-2; otherwise, proceed to step 7-3.

[0084] Step 7-2: Detect the closed status of the kitchen door. If the kitchen door is closed, increase the power of the exhaust fan and end the process. If not, remind the user to close the kitchen door, increase the power of the exhaust fan, and end the process.

[0085] In this embodiment, the closed state of the kitchen door can be detected using the same method as the open / closed state of the kitchen window described above, or other detection methods in the prior art can be used.

[0086] Step 7-3: Check the closed status of the kitchen door to determine if it is open. If so, control the first baffle to open the exhaust pipe and the vent pipe simultaneously, and control the range hood to run. If not, remind the user to open the kitchen door, control the first baffle to open the exhaust pipe and the vent pipe simultaneously, and control the range hood to run.

[0087] Step 8: Inspect the water stains on the kitchen floor and countertop, and dehumidify the kitchen according to the water stains. End.

[0088] In this embodiment, the specific steps for dehumidifying the kitchen based on the water stains on the kitchen floor and cooking countertop are as follows:

[0089] Step 8-1: Check if there are obvious water stains on the kitchen floor or cooking countertop. If so, proceed to step 8-2; otherwise, remain in standby mode and end.

[0090] In this embodiment, the method for detecting whether there are obvious water stains on the kitchen floor or cooking countertop is as follows: the humidity of the kitchen floor or cooking countertop is detected by a humidity sensor. Alternatively, an image acquisition module can be used to acquire images of the kitchen floor or cooking countertop in the living room, and the images can be processed by a controller to identify the condition of the kitchen floor or cooking countertop in the living room; other existing technologies can also be adopted.

[0091] Step 8-2: Detect the outdoor air humidity H2 at the second air inlet and determine whether H2 is greater than or equal to H1. If so, control the second baffle to block the air outlet channel, allowing air to enter through the first air inlet, and proceed to step 8-3. If not, control the second baffle to close the first air inlet, allowing air to enter through the second air inlet, and proceed to step 8-3.

[0092] Step 8-3: Control the operation of the air outlet fan; and you can also control the movement of the air outlet louvers to perform targeted dehumidification;

[0093] Step 8-4: Wait for the exhaust fan to operate for the preset time, then proceed to step 8-5;

[0094] Step 8-5: Determine if the water stains on the kitchen floor or cooking countertop have significantly decreased. If so, proceed to step 8-1; otherwise, increase the power of the exhaust fan and proceed to step 8-4.

[0095] In this embodiment, whether the water stains have been significantly reduced is determined by: judging whether the decrease in humidity of the kitchen floor or cooking countertop exceeds the preset humidity value. If so, it is determined that there has been a significant reduction; otherwise, there has been no significant reduction.

[0096] 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), and an evaporator (14). 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) is located in the air outlet channel (114). The air outlet channel (114) has an air inlet and an air outlet (112). The air outlet (112) is in direct flow with the kitchen interior. A heat dissipation port (113) with an external exhaust pipe (19) is provided on the first housing (11). The fume extraction assembly (2) 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 fume extraction fan. The smoke exhaust pipe (23) is connected to the exhaust pipe (19). Its features also include The first baffle (4) is rotatably constrained within the exhaust pipe (23). During the rotation of the first baffle (4), the first baffle (4) can selectively block the exhaust pipe (23), block the exhaust pipe (19), or simultaneously open the exhaust pipe (23) and the exhaust pipe (19). The air inlet 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 air outlet channel (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 channel (114) can take in air through the second air inlet (111b), or block the air outlet channel (114) so ​​that the air outlet channel (114) can take in air through the first air inlet (111a). The control method for the above-mentioned kitchen air conditioning system includes the following steps: Step 1: Detect the current humidity in the kitchen using a humidity sensor, and proceed to Step 2 if dehumidification is needed; Step 2: Determine whether the current kitchen humidity H1 is greater than or equal to the maximum preset humidity Hmax. If so, detect the outdoor air humidity H2 through the second air inlet and proceed to Step 3; otherwise, proceed to Step 8. Step 3: Determine if H2 is greater than or equal to H1. If yes, check the opening and closing status of the kitchen window and proceed to Step 4; otherwise, proceed to Step 5. Step 4: Determine if the kitchen window is currently open. If so, remind the user to close the window and proceed to Step 5; otherwise, proceed to Step 5. Step 5: Control the second baffle to block the air outlet channel, and allow the air outlet channel to draw in air through the first air inlet; Step 6: Control the first baffle to block the smoke exhaust pipe and open the exhaust pipe; Step 7: Determine if the current humidity in the kitchen has decreased significantly. If so, continue dehumidifying in steps 5 and 6 and proceed to step 2. If not, check the humidity in the dining room and dehumidify the kitchen according to the humidity level in the dining room, then end the process. Step 8: Inspect the water stains on the kitchen floor and countertop, and dehumidify the kitchen according to the water stains. End.

2. The control method according to claim 1, characterized in that: 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 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 inside 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 opened, so that the first baffle (4) can simultaneously open the smoke exhaust pipe (23) and the air exhaust pipe (19).

3. The control method according to claim 2, characterized in that: The three-way valve (3) 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). The second inlet (32) is located on one side wall of the three-way valve (3). The first baffle (4) has a first side (41) and a second side (42) arranged opposite to each other. The first side (41) of the first baffle (4) extends along the width direction of the three-way valve (3). The first side (41) of the first baffle (4) is rotatably constrained at the position where the wall where the first inlet (31) is located intersects with the wall where the second inlet (32) is located. The second side (42) is a free side.

4. The control method according to claim 3, characterized in that: The three-way valve (3) has grooves (34) extending along the rotation path of the two ends of the first baffle (4) on its two inner side walls. The two ends of the second side (42) of the first baffle (4) are also provided with rotating shafts (43) that can be inserted into the grooves (34). During the rotation of the first baffle (4), the rotating shafts (43) can always slide in the grooves (34) so ​​that the first baffle (4) is in the first state, the second state or the third state.

5. The control method according to claim 4, characterized in that: The second side (42) of the first baffle (4) is provided with a protrusion (44) arranged along its width direction, and the wall surface of the three-way valve (3) where the first inlet (31) and / or the second inlet (32) are located is provided with a notch (35) for the protrusion (44) to be inserted to form a sealed connection.

6. The control method according to claim 5, characterized in that: It also includes a first drive mechanism for driving the first baffle (4) to rotate, the first drive mechanism being a first motor (5) connected to the first side (41) of the first baffle (4).

7. The control method according to claim 1, characterized in that: The top opening of the air outlet channel (114) is open, and the second air inlet (111b) corresponds to the top opening of the air outlet channel (114). The first air inlet (111a) is opened on the side wall of the air outlet channel (114).

8. The control method according to claim 7, characterized in that: One side of the second baffle (6) is constrained to the wall of the air outlet channel (114) where the first air inlet (111a) is located and is located upstream of the first air inlet (111a), while the other side of the second baffle (6) is a free end.

9. The control method according to claim 8, characterized in that: It also includes a second drive mechanism for driving the second baffle (6) to rotate, the second drive mechanism being a second motor (7) connected to the second baffle (6) for driving.

10. The control method according to claim 7, characterized in that: An air outlet fan (15) is also installed in the air outlet channel (114), and 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).

11. The control method according to claim 10, 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).

12. The control method according to claim 11, characterized in that: The first housing (11) is provided with a heat dissipation fan (18) located downstream of the condenser (13) along the airflow direction, and the air outlet direction of the heat dissipation fan (18) is aligned with the inlet of the exhaust pipe (19).

13. The control method according to any one of claims 1 to 12, characterized in that: The first housing (11) is located on top of the second housing (21), and the first housing (11) is provided with a perforation for at least part of the exhaust pipe (23) to extend out.

14. The control method according to claim 1, characterized in that: The specific steps for dehumidifying the kitchen in step 7, based on the humidity level of the restaurant, are as follows: Step 7-1: Detect the humidity H3 in the restaurant and determine whether H3 is greater than or equal to H1. If yes, proceed to step 7-2; otherwise, proceed to step 7-3. Step 7-2: Detect the closed status of the kitchen door. If the kitchen door is closed, increase the power of the exhaust fan and end the process. If not, remind the user to close the kitchen door, increase the power of the exhaust fan, and end the process. Step 7-3: Check the closed status of the kitchen door to determine if it is open. If so, control the first baffle to open the exhaust pipe and the vent pipe simultaneously, and control the range hood to run. If not, remind the user to open the kitchen door, control the first baffle to open the exhaust pipe and the vent pipe simultaneously, and control the range hood to run.

15. The control method according to claim 11, characterized in that: The specific steps for dehumidifying the kitchen in step 8, based on the water stains on the kitchen floor and cooking countertop, are as follows: Step 8-1: Check if there are obvious water stains on the kitchen floor or cooking countertop. If so, proceed to step 8-2; otherwise, remain in standby mode and end. Step 8-2: Detect the outdoor air humidity H2 at the second air inlet and determine whether H2 is greater than or equal to H1. If so, control the second baffle to block the air outlet channel, allowing air to enter through the first air inlet, and proceed to step 8-3. If not, control the second baffle to close the first air inlet, allowing air to enter through the second air inlet, and proceed to step 8-3. Step 8-3: Control the operation of the exhaust fan; Step 8-4: Wait for the exhaust fan to operate for the preset time, then proceed to step 8-5; Step 8-5: Determine if the water stains on the kitchen floor or cooking countertop have significantly decreased. If so, proceed to step 8-1; otherwise, increase the power of the exhaust fan and proceed to step 8-4.

16. The control method according to claim 15, characterized in that: In step 8-3, when the outlet fan is working, the outlet blades are also controlled to swing to achieve targeted dehumidification.

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