Air duct mechanism, sterilization cabinet, drying method and sterilization method

Abstract

The application provides a kind of air duct mechanism, sterilization cabinet, drying method and disinfection method, it is related to kitchen appliance technical field.The air duct mechanism provided by the application includes: first shell, second shell, fan assembly and valve assembly, valve assembly includes first valve, second valve and third valve;First shell is provided with near fan mouth, second shell is provided with far fan mouth, first valve is arranged in first shell, second valve is arranged in second shell, and fan assembly is arranged in first shell;First shell and second shell are fixedly connected, and first shell and second shell are communicated by third valve.Solve the problem that when sterilization cabinet adopts external exhaust type air duct system, due to the introduction of external air close to room temperature, the heating rate in the cavity is reduced, which causes the moisture on the tableware to be difficult to change into water vapor, and when using internal exhaust type air duct system, the water vapor in the cavity is difficult to exhaust, and can only be exhausted from the specific exhaust port by the pressure difference between the inside and outside after heating.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, and in particular to an air duct mechanism, a disinfection cabinet, a drying method, and a disinfection method. Background Technology

[0002] A disinfection cabinet is a tool that uses ultraviolet rays, far-infrared rays, high temperatures, ozone, and other methods to dry, sterilize, disinfect, and dehumidify items such as tableware, towels, clothing, beauty and hairdressing tools, and medical devices. There are three main factors that improve the drying efficiency of a disinfection cabinet: increasing the temperature, increasing the air circulation rate, and increasing the surface area of ​​the water.

[0003] The drying function in a dish sterilizer uses a heating device to dry the moisture in the dishes and the sterilizer cavity. To accelerate drying efficiency, most models incorporate an air duct system to increase airflow within the cavity. These systems are generally divided into internal and external exhaust types. Internal exhaust systems use a fan to circulate air within the cavity. Because this method doesn't exchange air with the outside, the cavity is less affected by the external environment, achieving faster heating and better temperature uniformity, thus accelerating the conversion of residual moisture on the dishes into water vapor. The disadvantage is that the water vapor is difficult to expel; it can only be expelled through a specific exhaust port by the pressure difference between the inside and outside after heating. External exhaust systems expel the air and water vapor from the cavity through a fan and introduce dry outside air, creating an internal-external circulation. While this method can expel water vapor faster, the introduction of near-room-temperature outside air slows down the heating rate within the cavity, making it harder for moisture on the dishes to convert into water vapor. Summary of the Invention

[0004] The purpose of this invention is to provide an air duct mechanism, a disinfection cabinet, a drying method, and a disinfection method to alleviate the problems existing in the prior art. When the disinfection cabinet adopts an external exhaust air duct system, the temperature rise rate inside the cavity is reduced due to the introduction of external air close to room temperature, which makes it difficult for moisture on the tableware to be converted into water vapor. When the internal exhaust air duct system is adopted, the water vapor inside the cavity is not easy to be discharged and can only be discharged from a specific exhaust port through the pressure difference between the inside and outside after heating.

[0005] To solve the above-mentioned technical problems, the technical solution provided by the present invention is as follows:

[0006] The air duct mechanism provided by the present invention includes: a first housing, a second housing, a fan assembly, and a valve assembly, wherein the valve assembly includes a first valve, a second valve, and a third valve;

[0007] The first housing is provided with a near-fan inlet, the second housing is provided with a far-fan inlet, the first valve is provided in the first housing, the second valve is provided in the second housing, and the fan assembly is provided inside the first housing;

[0008] The first housing and the second housing are fixedly connected, and the first housing and the second housing are connected through a third valve.

[0009] As a further technical solution, the fan assembly includes a motor and fan blades. The motor is configured as a forward and reverse motor, which is fixedly installed in the first housing near the fan inlet. The fan blades are driven and connected to the motor shaft of the motor.

[0010] As a further technical solution, the first valve, the second valve, and the third valve are all configured as one-way valves, with the first valve opening away from the interior of the first housing, the second valve opening towards the interior of the second housing, and the third valve opening away from the interior of the second housing.

[0011] As a further technical solution, the air duct mechanism also includes a connecting housing, which is cylindrical. The first housing is fixedly connected to the second housing through the connecting housing, and the third valve is disposed on the connecting housing.

[0012] As a further technical solution, the third valve is located at the end of the connecting housing close to the first housing.

[0013] As a further technical solution, the near-fan inlet is located on the bottom wall of the first housing, the first valve is located on the top wall of the first housing, and the central axis of the near-fan inlet coincides with the central axis of the first valve;

[0014] The air inlet is located on the bottom wall of the second housing, and the second valve is located on the top wall of the second housing, with the central axis of the air inlet and the second valve coinciding.

[0015] The disinfection cabinet provided by the present invention includes a cabinet body, a heating component and an air duct mechanism. The air duct mechanism is disposed in the cabinet body, and the near air outlet and the far air outlet in the air duct mechanism are both connected to the interior of the cabinet body. The heating component is disposed inside the cabinet body.

[0016] As a further technical solution, the disinfection cabinet also includes a temperature and humidity sensor and a controller. The temperature and humidity sensor is installed inside the cabinet and located in the middle of the side wall of the cabinet. The heating component is installed on the bottom wall of the cabinet. The controller is installed on the heating component. The controller is connected to both the temperature and humidity sensor and the heating component.

[0017] The drying method provided by this invention, applied to a disinfection cabinet, includes the following steps:

[0018] Click the drying function to activate the internal temperature and humidity sensor for monitoring.

[0019] The heating element is turned on, and the motor rotates in the forward direction;

[0020] Determine if the relative humidity inside the cabinet is less than or equal to 25% RH. If yes, complete the drying process directly; otherwise, proceed to the next step.

[0021] Determine if the temperature inside the cabinet has reached the maximum temperature value Tmax. If not, return to the previous step to determine the relative humidity. If yes, proceed to the next step.

[0022] When the temperature inside the cabinet reaches Tmax, the heating components stop working, and the motor starts rotating in the opposite direction.

[0023] Determine if the cabinet has cooled to (Tmax-T)℃. If not, the air duct mechanism continues to exhaust air. If so, proceed to the next step.

[0024] Determine if the humidity inside the cabinet is less than or equal to xRH. If not, return to step two and turn on the heating element. If yes, proceed to the next step.

[0025] The drying process is complete.

[0026] The disinfection method provided by this invention, applied to a disinfection cabinet, includes the following steps:

[0027] Click the disinfection function, and the temperature and humidity sensor will activate internal temperature and humidity detection.

[0028] When the ozone generator is turned on, the motor rotates in the forward direction.

[0029] Determine if the ozone generator's operating time is greater than or equal to X1. If not, return to the previous step and continue operating the ozone generator. If yes, proceed to the next step.

[0030] The ozone generator stops working, the heating components start working, and the motor rotates in the forward direction;

[0031] Determine if the heating component's on-time is greater than or equal to X2. If not, return to the previous step to continue turning on the heating component; if yes, proceed to the next step.

[0032] Determine if the humidity is less than or equal to xRH%. If yes, assume the food utensils inside the cabinet are dry and end the process directly. If no, proceed to the next step.

[0033] Determine if the temperature inside the cabinet has reached the maximum temperature value Tmax. If not, return to the previous step to determine the relative humidity. If yes, proceed to the next step.

[0034] The heating element stops working, and the motor rotates in the opposite direction.

[0035] Determine if the cabinet has cooled to (Tmax-T)℃. If not, the air duct mechanism continues to exhaust air. If so, proceed to the next step.

[0036] Determine if the humidity inside the cabinet is less than or equal to xRH%. If not, return to step four and turn on the heating element. If yes, proceed to the next step.

[0037] The drying process is complete.

[0038] Compared with the prior art, the air duct mechanism, disinfection cabinet, drying method, and disinfection method provided by the present invention have the following technical advantages:

[0039] In a first aspect, the ductwork mechanism provided by the present invention includes: a first housing, a second housing, a fan assembly, and a valve assembly. The valve assembly includes a first valve, a second valve, and a third valve. A near-fan inlet is provided on the first housing, and a far-fan inlet is provided on the second housing. The first valve is located in the first housing, the second valve is located in the second housing, and the fan assembly is located inside the first housing. The first housing and the second housing are fixedly connected and communicate with each other through the third valve. In use, the ductwork mechanism is installed on the outer wall of the cavity, ensuring that both the near-fan inlet and the far-fan inlet are connected to the interior of the cavity. During the operation of the fan assembly, external circulation is achieved when the first and second valves are opened. Specifically, when the fan assembly operates, water vapor and air inside the cavity enter the first housing through the near-fan inlet. At this time, the first valve opens, the third valve closes, and the pressure inside the cavity decreases. The second valve then opens, allowing external air to enter the cavity through the far-fan inlet to balance the pressure, thus completing external circulation. During the operation of the fan assembly, internal circulation is achieved when the third valve opens. Specifically, when the fan assembly operates, a negative pressure is created within the cavity. The third valve opens, while the first and second valves close. Air and water vapor inside the cavity enter the second housing through the far-side fan inlet, then pass through the third valve to reach the first housing, and finally enter the cavity through the near-side fan inlet, completing the internal circulation. Therefore, the cavity using a duct mechanism can achieve both internal and external circulation through a single duct system. This combines the advantages of faster water vapor removal from external circulation with faster heating and better temperature uniformity from internal circulation, as well as the ability to quickly convert residual moisture on tableware into water vapor.

[0040] Secondly, the disinfection cabinet provided by this invention includes a cabinet body, a heating component, and an air duct mechanism. The air duct mechanism is located on the outer side of the top wall of the cabinet body, and both the near-fan inlet and the far-fan inlet of the air duct mechanism are connected to the interior of the cabinet body. The heating component is located inside the cabinet body. When the disinfection cabinet is in operation, the heating component is activated to generate heat and heat the air inside the chamber. Through the air duct mechanism, a combination of internal and external circulation is achieved, thereby achieving the technical effect of efficient dehumidification and rapid drying.

[0041] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of the present invention, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0043] Figure 1 This is a schematic diagram of the air duct mechanism provided in an embodiment of the present invention;

[0044] Figure 2 This is a schematic diagram of the external circulation structure of the air duct mechanism provided in an embodiment of the present invention;

[0045] Figure 3 This is a schematic diagram of the internal circulation of the air duct mechanism provided in an embodiment of the present invention;

[0046] Figure 4 A schematic diagram of the structure of the disinfection cabinet provided in an embodiment of the present invention. Figure 1 ;

[0047] Figure 5 A schematic diagram of the structure of the disinfection cabinet provided in an embodiment of the present invention. Figure 2 ;

[0048] Figure 6 This is a step diagram illustrating the drying process of a disinfection cabinet according to an embodiment of the present invention;

[0049] Figure 7 The following is a diagram illustrating the steps involved in the disinfection process of the disinfection cabinet provided in this embodiment of the invention.

[0050] Icons: 100 - First housing; 110 - Near-fan outlet; 200 - Second housing; 210 - Far-fan outlet; 300 - Fan assembly; 310 - Motor; 320 - Fan blade; 410 - First valve; 420 - Second valve; 430 - Third valve; 500 - Connecting housing; 600 - Cabinet; 700 - Heating assembly; 800 - Temperature and humidity sensor. Detailed Implementation

[0051] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0053] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Physical quantities in formulas, unless otherwise specified, should be understood as basic quantities in the International System of Units (SI), or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.

[0054] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0055] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0056] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features described herein can be combined with each other.

[0057] The air duct mechanism provided in this embodiment includes: a first housing 100, a second housing 200, a fan assembly 300, and a valve assembly. The valve assembly includes a first valve 410, a second valve 420, and a third valve 430.

[0058] The first housing 100 is provided with a near-fan port 110, the second housing 200 is provided with a far-fan port 210, the first valve 410 is provided in the first housing 100, the second valve 420 is provided in the second housing 200, and the fan assembly 300 is provided inside the first housing 100.

[0059] The first housing 100 and the second housing 200 are fixedly connected, and the first housing 100 and the second housing 200 are connected through the third valve 430.

[0060] Specific combination Figures 1 to 3 As shown, during use, the duct mechanism is installed on the outer wall of the cavity, ensuring that both the near-fan inlet 110 and the far-fan inlet 210 are connected to the interior of the cavity. During the operation of the fan assembly 300, external circulation is achieved when the first valve 410 and the second valve 420 are opened. Specifically, when the fan assembly 300 operates, water vapor and air inside the cavity enter the first housing 100 through the near-fan inlet 110. At this time, the first valve 410 opens, and the third valve 430 closes, reducing the pressure inside the cavity. The second valve 420 then opens, allowing external air to enter the cavity through the far-fan inlet 210 to balance the pressure, thus completing external circulation. During the operation of the fan assembly 300, internal circulation is achieved when the third valve 430 is opened. Specifically, when the fan assembly 300 operates, a negative pressure is created within the cavity. The third valve 430 opens, while the first valve 410 and the second valve 420 close. Air and water vapor inside the cavity enter the second housing 200 through the far-side fan port 210, then reach the first housing 100 through the third valve 430, and finally enter the cavity through the near-side fan port 110, completing the internal circulation. Therefore, the cavity using the duct mechanism can achieve both internal and external circulation through a single duct system. This combines the advantages of faster water vapor removal from external circulation with faster heating and better temperature uniformity from internal circulation, as well as the ability to quickly convert residual moisture on tableware into water vapor.

[0061] In the optional technical solution of this embodiment, the fan assembly 300 includes a motor 310 and a fan blade 320. The motor 310 is configured as a forward and reverse motor, which is fixedly installed in the first housing 100 near the fan port 110. The fan blade 320 is drivenly connected to the motor shaft of the motor 310.

[0062] Specific combination Figures 1 to 3As shown, with this configuration, when the reversible motor rotates in the forward direction, it drives the fan blades 320 to rotate, blowing air away from the cavity. The first valve 410 opens, expelling air and moisture from the cavity. Then, the second valve 420 opens, allowing external air to enter the cavity through the fan inlet 210 to balance the pressure, thus completing external circulation. When the reversible motor rotates in the reverse direction, it drives the fan blades 320 to rotate, blowing air into the cavity. A negative pressure is created inside the cavity. At this time, the first valve 410 closes, and the third valve 430 opens. Air and moisture from inside the cavity enter the second housing 200 through the fan inlet 210. Then, the second valve 420 closes. After passing through the second housing 200 and the third valve 430, the air and moisture from inside the cavity reach the first housing 100 and are blown into the cavity by the operation of the fan assembly 300, thus completing internal circulation. Since the motor 310 is set to be a forward and reverse motor, internal and external circulation can be achieved through one motor 310, which ensures the performance of the air duct mechanism while making the structure of the air duct system simpler, thereby reducing manufacturing costs.

[0063] In the optional technical solution of this embodiment, the first valve 410, the second valve 420 and the third valve 430 are all configured as one-way valves, and the first valve 410 opens in the direction away from the inside of the first housing 100, the second valve 420 opens in the direction close to the inside of the second housing 200, and the third valve 430 opens in the direction away from the inside of the second housing 200.

[0064] Specific combination Figures 1 to 3 As shown, when the reversible motor rotates in the forward direction, it drives the fan blades 320 to rotate, blowing air away from the cavity. The first valve 410 opens under pressure, expelling air and water vapor from the cavity. The pressure inside the cavity decreases, and the external air, due to the pressure difference, causes the second valve 420 to open towards the inside of the second housing 200. Then, external air enters the cavity through the remote blower port 210 to balance the pressure, thus completing the external circulation. When the reversible motor rotates in the reverse direction, it drives the fan blades 320 to rotate, blowing air into the cavity. A negative pressure is formed inside the cavity, and the external air, due to the pressure difference, causes the first valve 410 to close and the third valve 430 to open. Air and water vapor from the cavity enter the second housing 200 through the remote blower port 210. At this time, the pressure inside the cavity is greater than the external pressure, causing the second valve 420 to close. The air and water vapor from the cavity pass through the second housing 200 and the third valve 430, and after reaching the first housing 100, are blown into the cavity by the operation of the fan assembly 300, thus completing the internal circulation. With this setup, there is no need to manually adjust the state of the first valve 410, the second valve 420, and the third valve 430. By using the sound-absorbing structure of the valves in conjunction with other components and utilizing pressure, internal or external circulation can be achieved. This ensures the effectiveness of the air duct mechanism while making the internal and external circulation process simpler and more convenient.

[0065] In the optional technical solution of this embodiment, the air duct mechanism further includes a connecting housing 500, which is cylindrical. The first housing 100 is fixedly connected to the second housing 200 through the connecting housing 500, and the third valve 430 is disposed on the connecting housing 500.

[0066] Specific combination Figures 1 to 3 As shown, with this configuration, the connecting housing 500 extends the path of air and water vapor from the second housing 200 to the first housing 100 during the internal circulation process, thereby further improving the internal circulation effect.

[0067] In this embodiment, the third valve 430 is disposed at one end of the connecting housing 500 near the first housing 100.

[0068] Specific combination Figures 1 to 3 As shown, during the internal circulation process, the third valve 430 is opened away from the interior of the second housing 200 due to the negative pressure. Furthermore, the negative pressure inside the connecting housing 500 is less than that inside the second housing 200. Positioning the third valve 430 away from the second housing 200 ensures that it opens normally when the negative pressure within the duct mechanism is sufficient, allowing the internal circulation process to complete smoothly. Conversely, when the negative pressure within the duct mechanism is low, it prevents the third valve 430 from opening abnormally, thus avoiding disruption to the internal circulation process.

[0069] In this embodiment, the fan inlet 110 is located on the bottom wall of the first housing 100, the first valve 410 is located on the top wall of the first housing 100, and the central axis of the fan inlet 110 coincides with the central axis of the first valve 410.

[0070] The air outlet 210 is located on the bottom wall of the second housing 200, and the second valve 420 is located on the top wall of the second housing 200, with the central axis of the air outlet 210 and the second valve 420 coinciding.

[0071] Specific combination Figures 1 to 3As shown, with this configuration, air and water vapor coming out from the near-fan port 110 can flow directly out from the first valve 410, and air entering from the second port can directly enter the cavity through the far-fan port 210. Throughout the process, the path of air or water vapor flowing through the housing and the second housing 200 does not need to bend, further ensuring the flow effect of air or water vapor in the first housing 100 and the second housing 200. The central axis of the near-fan port 110 coincides with the central axis of the first valve 410, and the central axis of the far-fan port 210 coincides with the central axis of the second valve 420, which can avoid the formation of dead corners in the first housing 100 and the second housing 200. At the same time, it improves the uniformity of air or water vapor in the first housing 100 and the second housing 200, thereby ensuring the circulation effect of the air duct mechanism.

[0072] In the optional technical solution of this embodiment, the cross-sectional shape of the first housing 100 is set to be circular along the height direction of the first housing 100, and the cross-sectional shapes of the near-fan port 110 and the first valve 410 are respectively set to be circular;

[0073] The cross-sectional shape of the first housing 100 is set to be circular along the height direction of the first housing 100, and the cross-sectional shapes of the remote air outlet 210 and the second valve 420 are set to be circular accordingly.

[0074] Specific combination Figures 1 to 3 As shown, this configuration avoids dead zones within the first housing 100 and the second housing 200, ensuring the flow of air and water vapor within the first housing 100 and the second housing 200, thereby improving the effectiveness of internal and external circulation.

[0075] The disinfection cabinet provided in this embodiment includes a cabinet body 600, a heating component 700, and an air duct mechanism. The air duct mechanism is located on the outer side of the top wall of the cabinet body 600, and the near air outlet 110 and the far air outlet 210 in the air duct mechanism are both connected to the interior of the cabinet body 600. The heating component 700 is located inside the cabinet body 600.

[0076] Specific combination Figures 2 to 5 As shown, when the disinfection cabinet is working, the heating component 700 starts to generate heat and heats the air inside the cavity. Through the air duct mechanism, it achieves a combination of internal and external circulation, thereby achieving the technical effect of efficient dehumidification and rapid drying.

[0077] Additionally, when the air duct mechanism is located on the outer side of the top wall of the cabinet 600, it can extend along the thickness direction of the cabinet 600, such as... Figure 4 As shown; it can also be extended along the width direction of the cabinet 600, such as Figure 5As shown; or installed on other side walls of cabinet 600. The specific installation method depends on the specific situation, and should achieve the technical effect of efficient dehumidification and rapid drying by installing it in cabinet 600 through the air duct mechanism and combining internal and external circulation.

[0078] In the optional technical solution of this embodiment, the disinfection cabinet also includes a temperature and humidity sensor 800 and a controller. The temperature and humidity sensor 800 is installed inside the cabinet 600 and located in the middle of the side wall of the cabinet 600. The heating component 700 is installed on the bottom wall of the cabinet 600. The controller is installed on the heating component 700. The controller is signal connected to both the temperature and humidity sensor 800 and the heating component 700.

[0079] Specific combination Figure 4 and Figure 5 As shown, since the temperature and humidity are relatively uniform in the middle of the cabinet 600, the temperature and humidity sensor 800 is located in the middle of the side wall. The controller is located within the heating assembly 700, and is signal-connected to both the temperature and humidity sensor 800 and the heating assembly 700. When the temperature and humidity sensor 800 senses the temperature and humidity inside the cabinet 600, it transmits the corresponding data to the controller. The controller then controls the motor 310 to rotate forward or backward based on the received signal, thereby achieving external or internal circulation through the air duct mechanism. Through the cooperation of the heating assembly 700 and the temperature and humidity sensor 800, the disinfection cabinet achieves autonomous external or internal circulation without manual operation, ensuring and improving its effectiveness.

[0080] The drying method provided in this embodiment is applied to a disinfection cabinet and includes the following steps, illustrated in the diagram. Figure 6 As shown:

[0081] Step 1: Click the drying function, and the temperature and humidity sensor 800 will activate to detect internal temperature and humidity;

[0082] Step 2: The heating component 700 is turned on, the motor 310 rotates in the forward direction, and the air duct mechanism is in internal circulation mode;

[0083] Step 3: Determine if the relative humidity inside cabinet 600 is less than or equal to 25%RH. If so, assume the tableware inside cabinet 600 is dry and proceed directly to step 8 to complete the drying process; otherwise, proceed to the next step.

[0084] Step 4: Determine if the temperature inside the cabinet 600 has reached the maximum temperature value Tmax inside the cabinet 600. If not, return to step 3 to continue determining the relative humidity. If yes, proceed to the next step.

[0085] Step 5: When the temperature inside the cabinet 600 reaches Tmax, the heating component 700 stops working, the motor 310 starts to rotate in reverse, the air duct mechanism is in external circulation mode, the air duct mechanism exhausts water vapor, and at the same time, the ambient air introduced from the outside will help cool the cavity.

[0086] Step 6: Determine if the cabinet 600 has cooled to (Tmax-T)℃. If not, the air duct mechanism continues to exhaust air. If so, proceed to the next step.

[0087] Step 7: Determine if the humidity inside cabinet 600 is less than or equal to xRH%. If not, return to step 2 and turn on heating component 700. Switch the air duct structure to internal circulation mode to make cabinet 600 heat up quickly. If yes, proceed to the next step.

[0088] Step 8: Complete the drying process.

[0089] Where: RH (Relative Humidity) is the relative humidity, and 25RH% means that the current relative humidity is 25%. Relative humidity is the percentage of the actual partial pressure of water vapor per unit volume of air to the saturated vapor pressure of water at the same temperature and volume. xRH refers to the relative humidity value after the tableware in the cabinet is dried. Generally, a humidity of less than or equal to 25RH% in the cabinet indicates that the tableware in the cabinet has reached a dry state.

[0090] Tmax represents the highest temperature that the cabinet 600 can withstand. During the drying process, in order to protect the tableware and components inside the cavity, the sterilizer sets a temperature limit. When the temperature inside the cabinet 600 reaches the highest temperature Tmax, the sterilizer will stop the heating device and allow the cabinet 600 to cool naturally to a certain temperature before restarting the heating device. By repeatedly starting and stopping, the temperature inside the cabinet 600 is controlled within a suitable range. At the Tmax temperature, the efficiency of converting moisture inside the cabinet 600 into water vapor is maximized.

[0091] T is the set temperature value. The heating device stops working after the temperature inside the cabinet reaches Tmax. The heating device can resume working after the temperature inside the cavity cools down to (Tmax-T)℃. Generally, T is set to 10℃.

[0092] In addition, this control method can also be applied to disinfection cabinets equipped with ozone devices to complete the disinfection process, such as... Figure 7 As shown, the specific steps are as follows:

[0093] Step 1: Click the disinfection function; the temperature and humidity sensor 800 will activate internal temperature and humidity detection.

[0094] Step 2: The ozone generator is turned on, motor 310 rotates in the forward direction, and the air duct mechanism is in internal circulation mode;

[0095] Step 3: Determine if the ozone generator's operating time is greater than or equal to X1. If not, return to Step 2 to continue operating the ozone generator. If yes, proceed to the next step.

[0096] Step 4: The ozone generator stops working, the heating component 700 starts working, the motor 310 rotates in the forward direction, and the air duct mechanism is in internal circulation mode;

[0097] Step 5: Determine if the heating component 700's on-time is greater than or equal to X2. If not, return to Step 4 to continue turning on the heating component 700. If yes, proceed to the next step.

[0098] Step Six: Determine if the humidity is less than or equal to xRH%. If yes, assume the tableware inside the cabinet is dry and proceed directly to Step Eleven to finish the work. If no, proceed to the next step.

[0099] Step 7: Determine if the temperature inside the cabinet 600 has reached the maximum temperature value Tmax inside the cabinet 600. If not, return to Step 6 to continue determining the relative humidity. If yes, proceed to the next step.

[0100] Step 8: Heating component 700 stops working, motor 310 rotates in the opposite direction, and the air duct mechanism is in external circulation mode;

[0101] Step 9: Determine if the cabinet 600 has cooled to (Tmax-T)℃. If not, the air duct mechanism continues to exhaust air. If so, proceed to the next step.

[0102] Step 10: Determine if the humidity inside cabinet 600 is less than or equal to xRH%. If not, return to step 4 and turn on heating component 700. Switch the air duct structure to internal circulation mode to make cabinet 600 heat up quickly. If yes, proceed to the next step.

[0103] Step 11: Complete the drying process.

[0104] Where: X1 is the ozone device activation time. Generally, a disinfection cabinet of a certain volume needs to have the ozone device activated for 70 minutes. During the ozone operation, the disinfection cabinet must be kept sealed to prevent ozone leakage from causing harm to the human body. Therefore, before X1 time, the air duct system is in an internal circulation state, which can help the ozone be more evenly distributed in all parts of the cavity.

[0105] Disinfection is completed after X1 time, but ozone still remains in the cavity. At this time, the heating device needs to be turned on for X2 time to decompose the ozone with high temperature. The decomposition time is generally 15 minutes. At the same time, the air circulation in the duct accelerates the temperature rise of the cavity.

[0106] After X2 time, the ozone decomposition process is completed. Check if the utensils in the cavity are dry. If not, continue heating until the temperature reaches Tmax. Then, stop heating and switch the air duct system to external circulation mode for dehumidification. Subsequent steps are the same as the drying scheme described above. The ozone decomposition can be completed as long as the total heating time in one of the disinfection function cycles is greater than or equal to X1.

[0107] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A duct mechanism, characterized in that, include: The assembly comprises a first housing (100), a second housing (200), a fan assembly (300), and a valve assembly, wherein the valve assembly includes a first valve (410), a second valve (420), and a third valve (430). The first housing (100) is provided with a near-fan port (110), the second housing (200) is provided with a far-fan port (210), the first valve (410) is provided in the first housing (100), the second valve (420) is provided in the second housing (200), and the fan assembly (300) is provided inside the first housing (100); The first housing (100) and the second housing (200) are fixedly connected, and the first housing (100) and the second housing (200) are connected through the third valve (430); The near-fan port (110) and far-fan port (210) in the air duct mechanism are both used to communicate with the interior of the cabinet (600); when the fan assembly is running, the first valve opens, the third valve closes, and the second valve opens, the interior of the cabinet (600) forms an external circulation with the outside; when the fan assembly is running, the third valve opens, and the first and second valves close, the interior of the cabinet (600) forms an internal circulation.

2. The air duct mechanism according to claim 1, characterized in that, The fan assembly (300) includes a motor (310) and a fan blade (320). The motor (310) is configured as a forward and reverse motor. The forward and reverse motor is fixedly installed in the first housing (100) corresponding to the near fan port (110). The fan blade (320) is drivenly connected to the motor shaft of the motor (310).

3. The air duct mechanism according to claim 2, characterized in that, The first valve (410), the second valve (420) and the third valve (430) are all configured as one-way valves, and the first valve (410) opens in the direction away from the inside of the first housing (100), the second valve (420) opens in the direction close to the inside of the second housing (200), and the third valve (430) opens in the direction away from the inside of the second housing (200).

4. The air duct mechanism according to claim 3, characterized in that, The air duct mechanism further includes a connecting housing (500), which is cylindrical. The first housing (100) is fixedly connected to the second housing (200) through the connecting housing (500), and the third valve (430) is disposed on the connecting housing (500).

5. The air duct mechanism according to claim 4, characterized in that, The third valve (430) is located at one end of the connecting housing (500) near the first housing (100).

6. The air duct mechanism according to claim 1, characterized in that, The near-fan port (110) is located on the bottom wall of the first housing (100), the first valve (410) is located on the top wall of the first housing (100), and the central axis of the near-fan port (110) coincides with the central axis of the first valve (410). The remote air outlet (210) is located on the bottom wall of the second housing (200), and the second valve (420) is located on the top wall of the second housing (200), with the central axis of the remote air outlet (210) and the second valve (420) coinciding.

7. A disinfection cabinet, characterized in that, The device includes a cabinet (600), a heating assembly (700), and a ductwork mechanism as described in any one of claims 1-6. The ductwork mechanism is disposed in the cabinet (600), and the near-fan port (110) and the far-fan port (210) in the ductwork mechanism are both connected to the interior of the cabinet (600). The heating assembly (700) is disposed inside the cabinet (600).

8. The disinfection cabinet according to claim 7, characterized in that, The disinfection cabinet also includes a temperature and humidity sensor (800) and a controller. The temperature and humidity sensor (800) is located inside the cabinet body (600) and in the middle of the side wall of the cabinet body (600). The heating component (700) is located on the bottom wall of the cabinet body (600). The controller is located on the heating component (700). The controller is signal connected to both the temperature and humidity sensor (800) and the heating component (700).

9. A drying method, applied to the disinfection cabinet according to claim 7 or 8, characterized in that, Includes the following steps: Click the drying function, and the temperature and humidity sensor (800) will activate to detect internal temperature and humidity; The heating element (700) is turned on, and the motor (310) rotates in the forward direction; Determine if the relative humidity inside the cabinet (600) is less than or equal to 25%RH. If yes, complete the drying process directly; otherwise, proceed to the next step. Determine whether the temperature inside the cabinet (600) has reached the maximum temperature value Tmax inside the cabinet (600). If not, return to the previous step to continue determining the relative humidity. If yes, proceed to the next step. When the temperature inside the cabinet (600) reaches Tmax, the heating component (700) stops working, and the motor (310) starts to rotate in the opposite direction. Determine whether the cabinet (600) has cooled to (Tmax-T)℃. If not, the air duct mechanism continues to exhaust air. If yes, proceed to the next step. Determine whether the humidity inside the cabinet (600) is less than or equal to xRH. If not, return to step two and continue to turn on the heating component (700). If yes, proceed to the next step. The drying process is complete.

10. A disinfection method, applied to the disinfection cabinet according to claim 7 or 8, characterized in that, Includes the following steps: Click the disinfection function, and the temperature and humidity sensor (800) will activate internal temperature and humidity detection; When the ozone generator is turned on, the motor (310) rotates in the forward direction; Determine if the ozone generator's operating time is greater than or equal to X1. If not, return to the previous step and continue operating the ozone generator. If yes, proceed to the next step. The ozone generator stops working, the heating component (700) starts working, and the motor (310) rotates in the forward direction; Determine if the heating component (700) turn-on time is greater than or equal to X2. If not, return to the previous step to turn on the heating component (700) again. If yes, proceed to the next step. Determine if the humidity is less than or equal to xRH%. If yes, assume the utensils inside the cabinet (600) are dry and end the process directly. If no, proceed to the next step. Determine whether the temperature inside the cabinet (600) has reached the maximum temperature value Tmax inside the cabinet (600). If not, return to the previous step to continue determining the relative humidity. If yes, proceed to the next step. The heating element (700) stops working, and the motor (310) rotates in the opposite direction; Determine whether the cabinet (600) has cooled to (Tmax-T)℃. If not, the air duct mechanism continues to exhaust air. If so, proceed to the next step. Determine if the humidity inside the cabinet (600) is less than or equal to xRH%. If not, return to step four and turn on the heating element (700). If yes, proceed to the next step. The drying process is complete.

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