Control method of double-air-duct internal and external circulation mother and infant disinfection cabinet

Abstract

The invention discloses a control method of a double-air-duct internal and external circulation mother and baby disinfection cabinet. The disinfection cabinet comprises a cavity, an external circulation air duct and an internal circulation air duct, wherein the external circulation air duct and the internal circulation air duct are communicated with the cavity; a plurality of temperatures W1, W2, W3,..., Wn are set, the temperatures W1, W2, W3,..., Wn are all fixed threshold values, and W1lt; w < 2lt >; w1, W2, W3,..., lt; wn; the control method comprises the following steps: S1, increasing the temperature in the cavity to enable the temperature in the cavity to be not lower than W1; s2, enabling the temperature in the cavity to be uniform by utilizing an internal circulation air duct; s3, circularly executing the steps S1 to S2, increasing the temperature in the cavity to the set temperatures W2, W3... Wn, and enabling the temperature in the cavity to be uniform; s4, when the temperature reaches the set temperature Wn, the internal circulation air duct is utilized, the working time length t0 is set, and drying is completed after t0; the internal temperature of the cavity is controlled through the internal and external circulating air ducts, so that rapid drying and dehumidification are carried out, and the disinfection efficiency and effect are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of mother and baby disinfection cabinets, and in particular relates to a control method of a mother and baby disinfection cabinet with double air ducts and internal and external circulation. Background Art

[0002] The maternal and infant disinfection cabinet has gradually developed against the background of the growing demand for disinfection of infant products in modern families. The control method of the maternal and infant disinfection cabinet originated from the improvement and upgrading of traditional disinfection methods. Traditional disinfection methods, such as boiling water and chemical disinfectants, can kill certain bacteria and viruses, but they have disadvantages such as cumbersome operation, incomplete disinfection, and easy damage to items. With the development of science and technology, people began to explore more efficient, convenient and safe disinfection methods, and maternal and infant disinfection cabinets came into being. Maternal and infant disinfection cabinets usually use a variety of disinfection methods such as ultraviolet rays, infrared rays, ozone, and high temperature. These disinfection methods have their own characteristics and can kill different bacteria and viruses. By combining multiple disinfection methods, a more comprehensive and thorough disinfection effect can be achieved. Maternal and infant disinfection cabinets are usually equipped with intelligent control systems that can automatically adjust the disinfection method, time and temperature according to the parameters set by the user. Maternal and infant disinfection cabinets focus on safety protection in the control method, such as setting overheating protection and short circuit protection to ensure safety during the disinfection process. At the same time, maternal and infant disinfection cabinets are usually equipped with a child lock function to prevent children from misoperating. With the improvement of people's living standards and the increasing attention paid to the health of infants and young children, the market demand for maternal and infant disinfection cabinets continues to grow. Especially in urban families, due to the limitations of the living environment and the increase in disinfection needs, maternal and infant disinfection cabinets have become one of the essential appliances for many families. With the development of Internet of Things technology, maternal and infant disinfection cabinets will pay more attention to the improvement of intelligence. For example, by connecting to a smartphone APP, users can remotely control the switch of the disinfection cabinet, adjust parameters, etc. With the enhancement of environmental awareness, maternal and infant disinfection cabinets will pay more attention to the improvement of energy-saving and environmental protection performance, and reduce energy consumption and emissions during the disinfection process by adopting more efficient disinfection methods and energy-saving technologies. With the development of science and technology and the continuous changes in market demand, the control method of maternal and infant disinfection cabinets will continue to be upgraded and optimized to provide users with a more efficient, convenient and safe disinfection experience.

[0003] Existing maternal and infant disinfection cabinets generally adopt a traditional single air duct. The humidity and temperature control inside the disinfection cabinet through a single air duct will cause uneven temperature inside the cabinet; or when the inside of the disinfection cabinet is heated, the humidity is constantly changing, which does not meet the humidity requirements during the disinfection process, and ultimately leads to poor drying and disinfection effects of the disinfection cabinet; in addition, the control method of a single air duct cannot ensure the uniformity of temperature and humidity in the disinfection cabinet, which will cause differences in temperature and humidity in different areas inside the cabinet, affecting the final drying and disinfection effect. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides a control method for a double-air duct internal and external circulation mother and baby disinfection cabinet, which adjusts and controls the temperature inside the cavity through the external circulation air duct and the internal circulation air duct, improving the efficiency and effect of drying and disinfection of the disinfection cabinet.

[0005] The technical solution of the present invention is realized as follows:

[0006] A control method for a double-air duct internal and external circulation mother and baby disinfection cabinet, the disinfection cabinet includes a cavity and an external circulation air duct and an internal circulation air duct connected to the cavity; a plurality of temperatures W1, W2, W3... Wn are set, and the temperatures W1, W2, W3... Wn are all fixed thresholds, and W1 < W2 < W3... < Wn; the control method includes the following steps:

[0007] S1. Raise the temperature inside the cavity so that the temperature inside the cavity is not lower than W1;

[0008] S2. Use the internal circulation air duct to make the temperature inside the cavity uniform;

[0009] S3. Loop through S1-S2 to raise the temperature inside the cavity to the set temperatures W2, W3... Wn and make the temperature inside the cavity uniform;

[0010] S4. When the temperature reaches the set temperature Wn, use the internal circulation air duct and set the working time length t0. After t0 time, drying is completed.

[0011] Furthermore, an external air inlet and an external air outlet are provided on the external circulation air duct, and an external circulation fan is provided at the external air outlet; an internal air inlet and an internal air outlet are provided on the internal circulation air duct, and an internal circulation fan is provided at the internal air inlet; the external air inlet, the external air outlet, the internal air inlet, and the internal air outlet are all arranged on the cavity of the disinfection cabinet; a heating module is provided at the external circulation fan; the control method specifically includes the following steps:

[0012] S1.1 The external circulation fan and the heating module start working at the same time, the internal circulation fan does not work, and the heating time length is t 加热 , and then read the temperature T of the external air inlet 外 ;

[0013] If T 外 is less than W1, the external circulation fan and the heating module continue to work, and the heating time length is t 加热 , until T 外 is greater than or equal to W1;

[0014] S2.1 The internal circulation fan starts working, the external circulation fan and the heating module stop working, and the working time length is t 加热 , and then read the temperature T of the external air inlet 外and the inner air inlet temperature T 内 ;

[0015] If T 外 Less than T 内 , the internal circulation fan continues to work, and the working time is t 加热 , until T 外 Greater than or equal to T 内 ;

[0016] At this time, the temperature of the outer air inlet is close to the temperature of the inner air inlet, and the temperature inside the cavity is uniform, making the temperature inside the cavity greater than or equal to W1;

[0017] S3.1 executes S1.1 again and increases T 外 Temperature, T 外 is greater than or equal to W2; then execute S2.1 to make T 外 Greater than or equal to T 内 ; At this time, the temperature of the outer air inlet is close to the temperature of the inner air inlet, and the temperature inside the cavity is uniform, making the temperature inside the cavity greater than or equal to W2;

[0018] And so on, the temperature inside the cavity is raised to W3, W4...Wn.

[0019] Furthermore, in S4, when the temperature reaches the set temperature Wn, the internal circulation fan is started, the external circulation fan and the heating module stop working, and the working time length of the internal circulation fan is set to t0. After t0 time, the drying is completed.

[0020] Furthermore, after the temperature in the cavity reaches any set temperature of W1, W2, W3, ... Wn, and the temperature inside the cavity is made uniform by the internal circulation fan, the humidity inside the cavity and the humidity outside the cavity are read. If the humidity inside the cavity is greater than or equal to the external humidity, the external circulation fan and the internal circulation fan start working at the same time, and the heating module heats and dehumidifies the inside of the cavity; then the humidity inside the cavity and the humidity outside the cavity are read again until the humidity inside the cavity is less than the external humidity;

[0021] Then continue to follow S3 and execute S1-S2 cyclically; if the temperature reaches the set temperature Wn and the humidity in the cavity is lower than the external humidity, then execute S4.

[0022] Furthermore, the control method specifically comprises the following steps:

[0023] P1. Read the humidity inside and outside the cavity. If the humidity inside the cavity is greater than or equal to the external humidity, the external circulation fan and the internal circulation fan start working at the same time, and the heating module does not heat, and the cavity is dehumidified;

[0024] Read the humidity inside the cavity and the humidity outside again until the humidity inside the cavity is less than the humidity outside;

[0025] P2, read the temperature inside the cavity, set temperature W1 as the first threshold, if the temperature inside the cavity is less than or equal to temperature W1, the external circulation fan and the internal circulation fan start to work, the heating module starts to heat, and the temperature inside the cavity is increased;

[0026] Set the time interval for reading the temperature inside the cavity to t, and read the temperature inside the cavity every time t until the temperature inside the cavity is greater than temperature W1; the specific method is the same as S1.1 to S2.1;

[0027] P3, read the temperature inside the cavity, set temperature T as the second threshold, if the temperature inside the cavity is greater than or equal to temperature T, it is determined that the temperature is too high and the operation is stopped;

[0028] P4. If the temperature inside the cavity is greater than temperature W1 and less than temperature T, read the humidity inside the cavity and the humidity outside the cavity again;

[0029] If the humidity in the cavity is greater than or equal to the external humidity, the external circulation fan and the internal circulation fan start working at the same time, the heating module does not heat, and the cavity is dehumidified; until the humidity in the cavity is less than the external humidity, then execute S2;

[0030] P5. If the humidity inside the cavity is lower than the humidity outside, the external circulation fan and the internal circulation fan start to work, and the heating module starts to heat to increase the temperature inside the cavity;

[0031] Set temperature W2 as the third threshold, and read the temperature inside the cavity at a time interval of t, and read the temperature inside the cavity every time t until the temperature inside the cavity is greater than temperature W2; the specific method is the same as S1.1 to S2.1;

[0032] P6, start the internal circulation fan, stop the external circulation fan and the heating module, and set the working time of the internal circulation fan to t0. After t0, the drying is completed.

[0033] Specifically, temperature sensors are provided at the outer air inlet and the inner air inlet respectively.

[0034] Setting the external air inlet and the internal air inlet at different positions in the cavity can not only promote the circulation of airflow inside the cavity, but also read the temperature at different positions in the cavity, so as to ensure the temperature balance of different areas in the cavity;

[0035] According to S1.1 to S3.1, the temperature in the cavity can be increased from W1 to Wn in sequence, or it can be directly increased to one of the set temperatures; the temperature can be increased gradually and evenly, or it can be increased to the preset temperature at one time; when increasing the temperature, the temperature at the outer air inlet and the inner air inlet is kept balanced, so as to ensure the uniformity of the temperature inside the cavity.

[0036] Furthermore, when the external circulation fan and the heating module are working, the path of the external circulation air duct is that the external air flow passes through the action of the external circulation fan, enters the external circulation air duct, is heated by the heating module, enters the cavity of the disinfection cabinet from the external air inlet, and flows out from the external air outlet.

[0037] Specifically, the external circulation air duct mainly sucks external air into the cavity through the external circulation fan, and a heating module is arranged between the external circulation fan and the external air inlet; the heating module can be a PTC heating plate or a PTC heating block, which heats the external air and then enters the cavity through the external air inlet; and finally flows out from the external air outlet.

[0038] Furthermore, when the internal circulation fan is working, the path of the internal circulation air duct is that the airflow inside the cavity of the disinfection cabinet flows from the inner air outlet through the internal circulation air duct, and then, through the action of the internal circulation fan, flows into the cavity of the disinfection cabinet again from the inner air inlet.

[0039] Specifically, no heating module is provided at the inner circulation fan, and the inner circulation fan is mainly used to cooperate with the outer circulation fan to form a double air duct circulation, thereby improving the uniformity and stability of the air flow circulation and accelerating the air flow.

[0040] Furthermore, when the external circulation fan, the heating module and the internal circulation fan are working at the same time, the external air flow enters the external circulation air duct through the action of the external circulation fan, is heated by the heating module, and enters the cavity of the disinfection cabinet from the external air inlet. The air flow inside the cavity of the disinfection cabinet flows through the internal circulation air duct from the internal air outlet, and then, through the action of the internal circulation fan, flows into the cavity of the disinfection cabinet again from the internal air inlet, and finally flows out from the external air outlet.

[0041] Specifically, the external circulation fan, heating module and internal circulation fan work simultaneously, which can increase the temperature inside the cavity and speed up the airflow circulation inside the cavity, thereby effectively controlling the temperature and humidity inside the cavity and ensuring the uniformity of the temperature inside the cavity.

[0042] Furthermore, a channel is provided between the inner air outlet and the inner air inlet, and the inner circulation fan is connected to the channel.

[0043] Specifically, the internal circulation fan transports the gas to the interior of the cavity through the internal air inlet, and a sealed cavity is provided at the position where the channel meets the internal air outlet, and the sealed cavity and the internal air outlet are sealed and connected; providing the sealed cavity can improve the efficiency of gas entering the sealed cavity from the internal air outlet, and cooperate with the action of the internal circulation fan to form an air pressure difference between the sealed cavity and the interior of the cavity, thereby accelerating the gas flow, increasing the airflow circulation speed inside the cavity, and achieving better disinfection and dehumidification effects.

[0044] Furthermore, the inner circulation fan, the channel, the outer circulation fan and the heating module are all arranged on the outer side wall of the cavity, and are located on the same outer side wall.

[0045] Specifically, the internal circulation fan and the external circulation fan can be arranged in parallel, the external air inlet and the internal air inlet can be arranged at the lower end of the cavity, and the external air outlet and the internal air outlet can be arranged at the upper end of the cavity; the external circulation fan and the heating module, the internal circulation fan and the channel are arranged on the same side wall outside the cavity, which can optimize the internal space utilization of the disinfection cabinet, facilitate the electrical control wiring, and avoid the dual-duct structural design occupying too much internal space, so that more items can be accommodated for simultaneous disinfection and drying; especially for small maternal and child disinfection cabinets, optimization of space utilization is particularly important, so as to ensure that as much disinfection and drying capacity as possible is provided within a limited volume.

[0046] Compared with the prior art, the present invention achieves the following beneficial effects:

[0047] The present invention provides a control method for a dual-duct internal and external circulation mother and baby disinfection cabinet, wherein the disinfection cabinet is provided with a cavity, an internal circulation duct and an external circulation duct, and the temperature inside the cavity is increased according to a set temperature, and the temperature uniformity inside the cavity is achieved through the internal circulation duct and temperature detection at different positions of the cavity. At the same time, the temperature is prevented from being too high. In addition, in the process of increasing the temperature inside the cavity, the humidity inside the cavity can be adjusted to keep the humidity inside the cavity lower than the external humidity, and then the temperature is increased to the optimal temperature for disinfection, and the items in the disinfection cabinet are dried and disinfected to achieve the best disinfection effect; by controlling the humidity and temperature inside the cavity, a rapid drying and dehumidification effect is achieved.

[0048] The dual air duct design allows smoother air flow inside the disinfection cabinet. The internal and external circulation modes are controlled and switched according to the temperature and humidity environment inside the cavity, which can more effectively control the internal temperature and humidity conditions and improve the dehumidification and drying effect. In the internal circulation mode, the gas flow rate in the disinfection cabinet can be accelerated and circulated, improving the uniformity and stability of the gas circulation inside the cabinet, thereby quickly improving the air quality and disinfection effect in the cavity; the external circulation mode can introduce fresh air from the outside into the disinfection cabinet and heat it, exchanging it with the internal air, further improving the disinfection efficiency and effect.

[0049] By controlling the switching of the dual air ducts, the energy consumption of the disinfection cabinet can be effectively managed, energy consumption can be reduced, and unnecessary energy waste can be avoided, thereby achieving energy saving and power saving. The main users of the mother and baby disinfection cabinet are babies and mothers, so its safety and health are of vital importance. The dual air duct internal and external circulation design can improve the precise control of the temperature and humidity inside the cavity. At the same time, the internal circulation has a fast air flow speed, which can improve the disinfection effect inside the disinfection cabinet. In addition, the switching of the internal and external circulation modes can also adjust the environment inside the disinfection cabinet to the optimal state, providing a healthier and more comfortable disinfection environment for mothers and babies, greatly improving the performance of the disinfection cabinet and the user experience and comfort.

[0050] The dual-duct internal and external circulation design can also effectively extend the service life of the disinfection cabinet, avoid problems such as moisture and mildew inside the disinfection cabinet, and thus keep the disinfection cabinet dry and clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 This is a flow chart of a control method of a dual-duct internal and external circulation mother and baby disinfection cabinet provided in Example 1 of the present invention;

[0052] Figure 2 This is a control mode logic diagram of a control method of a dual-duct internal and external circulation mother and baby disinfection cabinet provided in Example 1 of the present invention;

[0053] Figure 3 This is a control mode logic diagram of a control method of a dual-duct internal and external circulation mother and baby disinfection cabinet provided in Example 2 of the present invention;

[0054] Figure 4 This is a schematic diagram of the interior of the cavity of a disinfection cabinet for a control method of a dual-duct internal and external circulation mother and baby disinfection cabinet provided in Example 1 of the present invention;

[0055] Figure 5 It is a schematic diagram of the structure outside the cavity of a disinfection cabinet of a control method of a dual-duct internal and external circulation mother and baby disinfection cabinet provided in Example 1 of the present invention;

[0056] Figure 6 This is a schematic diagram of the principle of the outer circulation air duct of a control method of a dual-air duct inner and outer circulation mother and baby disinfection cabinet provided in Example 1 of the present invention;

[0057] Figure 7 It is a schematic cross-sectional principle diagram of an inner circulation air duct of a control method of a dual-air duct inner and outer circulation maternal and infant disinfection cabinet provided in Example 1 of the present invention;

[0058] Figure 8 This is one of the principle schematic diagrams of the inner and outer circulation air ducts of a control method of a dual-air duct inner and outer circulation maternal and infant disinfection cabinet provided in Example 1 of the present invention;

[0059] Fig. 9 This is the second principle schematic diagram of the inner and outer circulation air ducts of a control method of a dual-air duct inner and outer circulation maternal and infant disinfection cabinet provided in Example 1 of the present invention;

[0060] Fig.10 This is the third principle schematic diagram of the inner and outer circulation air ducts of the control method of the dual-air duct inner and outer circulation mother and baby disinfection cabinet provided in Example 1 of the present invention.

[0061] Reference numerals:

[0062] 101. disinfection cabinet; 102. cavity;

[0063] 201, external air inlet; 202, external air outlet; 203, external circulation fan; 204, heating module;

[0064] 301. Internal air inlet; 302. Internal air outlet; 303. Internal circulation fan; 304. Passage; 305. Sealed chamber. DETAILED DESCRIPTION

[0065] In order to make the purpose, technical solution and advantages of the present invention more clear, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0066] Example 1

[0067] like Figures 1 to 10 , a control method for a dual-duct internal and external circulation mother and baby disinfection cabinet 101, the disinfection cabinet 101 includes a cavity 102 and an external circulation duct and an internal circulation duct connected to the cavity 102; the external circulation duct is provided with an external air inlet 201 and an external air outlet 202, and an external circulation fan 203 is provided at the external air outlet 202; the internal circulation duct is provided with an internal air inlet 301 and an internal air outlet 302, and an internal circulation fan 303 is provided at the internal air inlet 301; the external air inlet 201, the external air outlet 202, the internal air inlet 301, and the internal air outlet 302 are all arranged on the cavity 102 of the disinfection cabinet 101; a heating module 204 is provided at the external circulation fan 203; temperature sensors are respectively provided at the external air inlet 201 and the internal air inlet 301.

[0068] Setting the outer air inlet 201 and the inner air inlet 301 at different positions of the cavity 102 can not only promote the circulation of airflow inside the cavity 102, but also read the temperature at different positions in the cavity, thereby ensuring the temperature balance of different areas in the cavity.

[0069] When the external circulation fan 203 is working and the heating module 204 is working, the path of the external circulation air duct is as follows: the external air flow, under the action of the external circulation fan 203, enters the external circulation air duct, is heated by the heating module 204, enters the cavity 102 of the disinfection cabinet 101 from the external air inlet 201, and flows out from the external air outlet 202.

[0070] The external circulation air duct mainly sucks external gas into the cavity 102 through the external circulation fan 203, and a heating module 204 is arranged between the external circulation fan 203 and the external air inlet 201; the heating module 204 can be a PTC heating plate or a PTC heating block, and after heating the external gas, it enters the cavity 102 from the external air inlet 201; finally, it flows out from the external air outlet 202.

[0071] When the internal circulation fan 303 is working, the path of the internal circulation air duct is as follows: the air flow inside the cavity 102 of the disinfection cabinet 101 flows through the internal circulation air duct from the internal air outlet 302, and then, under the action of the internal circulation fan 303, flows into the cavity 102 of the disinfection cabinet 101 again from the internal air inlet 301.

[0072] No heating module 204 is provided at the internal circulation fan 303. The internal circulation fan 303 is mainly used to cooperate with the external circulation fan 203 to form a double-air-duct circulation, thereby improving the uniformity and stability of the air flow circulation and accelerating the air flow.

[0073] When the external circulation fan 203, the heating module 204 and the internal circulation fan 303 work simultaneously, the external air flow, under the action of the external circulation fan 203, enters the external circulation air duct, is heated by the heating module 204, enters the cavity 102 of the disinfection cabinet 101 from the external air inlet 201. The air flow inside the cavity 102 of the disinfection cabinet 101 flows through the internal circulation air duct from the internal air outlet 302, and then, under the action of the internal circulation fan 303, flows into the cavity 102 of the disinfection cabinet 101 again from the internal air inlet 301, and finally flows out from the external air outlet 202.

[0074] When the external circulation fan 203, the heating module 204 and the internal circulation fan 303 work simultaneously, it can not only increase the temperature inside the cavity 102, but also accelerate the air flow circulation inside the cavity 102, thereby effectively controlling the temperature and humidity inside the cavity 102 and ensuring the uniformity of the temperature inside the cavity.

[0075] The control method includes the following steps:

[0076] Set multiple temperatures W1, W2, W3... Wn, and the temperatures W1, W2, W3... Wn are all fixed thresholds, and W1 < W2 < W3... < Wn; the control method includes the following steps:

[0077] S1, raising the temperature inside the cavity 102 so that the temperature inside the cavity 102 is not lower than W1; the specific method is:

[0078] S1.1 The external circulation fan 203 and the heating module 204 start working at the same time, the internal circulation fan 303 does not work, and the heating time is t 加热 , then read the temperature T of the external air inlet 201 外 ;

[0079] If T 外 If it is less than W1, the external circulation fan 203 and the heating module 204 continue to work, and the heating time is t 加热 , until T 外 Greater than or equal to W1;

[0080] S2. Use the internal circulation air duct to make the temperature inside the cavity 102 uniform; the specific method is:

[0081] S2.1 The internal circulation fan 303 starts working, and the external circulation fan 203 and the heating module 204 stop working. The working time is t 加热 , then read the temperature T of the external air inlet 201 外 and the temperature T of the inner air inlet 301 内 ;

[0082] If T 外 Less than T 内 , the internal circulation fan 303 continues to work, and the working time length is t 加热 , until T 外 Greater than or equal to T 内 ;

[0083] At this time, the temperature of the outer air inlet 201 is close to the temperature of the inner air inlet 301, and the temperature inside the cavity 102 is uniform, so that the temperature inside the cavity is greater than or equal to W1;

[0084] The humidity inside and outside the cavity 102 is read. If the humidity inside the cavity is greater than or equal to the humidity outside, the external circulation fan 203 and the internal circulation fan 303 start working at the same time, and the heating module 204 heats and dehumidifies the inside of the cavity 102;

[0085] Then read the humidity inside the cavity and the humidity outside again until the humidity inside the cavity is less than the humidity outside;

[0086] S3, execute S1-S2 cyclically, raise the temperature inside the cavity 102 to the set temperature W2, W3...Wn, and make the temperature inside the cavity 102 uniform; the specific method is:

[0087] S3.1 executes S1.1 again and increases T 外 Temperature, T 外is greater than or equal to W2; then execute S2.1 to make T 外 Greater than or equal to T 内 At this time, the temperature of the outer air inlet 201 is close to the temperature of the inner air inlet 301, and the temperature inside the cavity 102 is uniform, so that the temperature inside the cavity is greater than or equal to W2;

[0088] By analogy, the temperature inside the cavity 102 is increased to W3, W4, ..., Wn; Wn is greater than or equal to 75°C.

[0089] S4, when the temperature reaches the set temperature Wn, the humidity inside and outside the cavity 102 is read. If the humidity inside the cavity is greater than or equal to the external humidity, the external circulation fan 203 and the internal circulation fan 303 start working at the same time, and the heating module 204 heats and dehumidifies the inside of the cavity 102;

[0090] Then read the humidity inside the cavity and the humidity outside again until the humidity inside the cavity is less than the humidity outside;

[0091] The inner circulation fan 303 is started, the outer circulation fan 203 and the heating module 204 are stopped, and the working time length of the inner circulation fan 303 is set to t0, and the t0 time length is set to 20 minutes. After 20 minutes, the drying is completed.

[0092] According to S1.1 to S3.1, the temperature in the cavity can be increased from W1 to Wn in sequence, or it can be directly increased to one of the set temperatures; the temperature can be increased gradually and evenly, or it can be increased to the preset temperature at one time; when increasing the temperature, the temperature at the outer air inlet 201 and the inner air inlet 301 is kept balanced, so as to ensure the uniformity of the temperature inside the cavity 102.

[0093] In the process of increasing the temperature and dehumidifying, the temperature in the cavity 102 is taken as a priority factor. After the temperature reaches the requirement, the humidity factor is considered and the humidity is processed, that is, the priority of temperature control is higher than the priority of humidity.

[0094] A channel 304 is provided between the inner air outlet 302 and the inner air inlet 301 , and the inner circulation fan 303 is connected to the channel 304 .

[0095] The internal circulation fan 303 transports the gas to the interior of the cavity 102 through the internal air inlet 301, and a sealed cavity 305 is provided at the position where the channel 304 and the internal air outlet 302 meet, and the sealed cavity 305 and the internal air outlet 302 are sealedly connected; the provision of the sealed cavity 305 can improve the efficiency of the gas entering the sealed cavity 305 from the internal air outlet 302, and cooperate with the action of the internal circulation fan 303 to form an air pressure difference between the sealed cavity 305 and the interior of the cavity 102, thereby accelerating the gas flow, improving the airflow circulation speed inside the cavity 102, and achieving better disinfection and dehumidification effects.

[0096] The inner circulation fan 303, the channel 304, the outer circulation fan 203 and the heating module 204 are all arranged on the outer side wall of the cavity 102, and are located on the same outer side wall.

[0097] The internal circulation fan 303 and the external circulation fan 203 can be arranged in parallel, the external air inlet 201 and the internal air inlet 301 can be arranged at the lower end of the cavity 102, and the external air outlet 202 and the internal air outlet 302 can be arranged at the upper end of the cavity 102; the external circulation fan 203 and the heating module 204, the internal circulation fan 303 and the channel 304 are arranged on the same side wall outside the cavity 102, which can optimize the internal space utilization of the disinfection cabinet 101, facilitate electrical control wiring, and avoid the dual-duct structural design occupying too much internal space, so that more items can be accommodated for simultaneous disinfection and drying; especially for small maternal and child disinfection cabinets 101, optimization of space utilization is particularly important to ensure that as much disinfection and drying capacity as possible is provided within a limited volume.

[0098] The present invention provides a control method for a dual-duct internal and external circulation mother and baby disinfection cabinet 101, wherein a cavity 102 and internal and external circulation ducts are provided in the disinfection cabinet 101, and the temperature of the cavity 102 is increased to an optimal temperature for disinfection by controlling the airflow circulation of the internal and external dual air ducts and a heating module 204, while ensuring the uniformity of the temperature inside the cavity 102, and accurately controlling the humidity and temperature inside the cavity 102, thereby realizing rapid drying and dehumidification and achieving the best disinfection effect.

[0099] Example 2

[0100] like Figures 1 to 10 A control method of a dual-duct internal and external circulation mother and baby disinfection cabinet 101 specifically comprises the following steps:

[0101] P1. Read the humidity inside and outside the cavity 102. If the humidity inside the cavity is greater than or equal to the humidity outside, the external circulation fan 203 and the internal circulation fan 303 start working at the same time, and the heating module 204 does not heat, and the interior of the cavity 102 is dehumidified;

[0102] Read the humidity inside the cavity and the humidity outside again until the humidity inside the cavity is less than the humidity outside;

[0103] P2, read the temperature inside the cavity 102, set the temperature W1 as the first threshold, W1 is 45°C, if the temperature inside the cavity is less than or equal to 45°C, the external circulation fan 203 and the internal circulation fan 303 start to work, the heating module 204 starts heating, and the temperature inside the cavity is increased;

[0104] Set the time interval for reading the internal temperature of the cavity 102 to t, and read the temperature in the cavity every time t until the temperature in the cavity is greater than 45°C; the specific method is the same as S1.1 to S2.1;

[0105] P3, read the temperature inside the cavity 102, set the temperature T as the second threshold, T is 90°C, if the temperature inside the cavity is greater than or equal to 90°C, it is determined that the temperature is too high and the operation is stopped;

[0106] P4. If the temperature in the cavity is greater than 45°C and less than 90°C, the humidity inside and outside the cavity 102 is read again;

[0107] If the humidity in the cavity is greater than or equal to the external humidity, the external circulation fan 203 and the internal circulation fan 303 start working at the same time, and the heating module 204 does not heat, and the interior of the cavity 102 is dehumidified; until the humidity in the cavity is less than the external humidity, then execute S2;

[0108] P5. If the humidity in the cavity is lower than the humidity outside, the external circulation fan 203 and the internal circulation fan 303 start to work, and the heating module 204 starts to heat to increase the temperature in the cavity;

[0109] Set the temperature W2 as the third threshold value, W2 is 70°C, the time interval for reading the internal temperature of the cavity 102 is t, and read the temperature in the cavity every time t until the temperature in the cavity is greater than 70°C; the specific method is the same as S1.1 to S2.1;

[0110] P6. Start the internal circulation fan 303, stop the external circulation fan 203 and the heating module 204, and set the working time length of the internal circulation fan 303 to t0. After t0 time, the drying is completed.

[0111] In the method of this embodiment, the humidity is detected before the temperature is increased, and then the temperature is increased, the humidity factor is given priority, and then the temperature is adjusted for drying and disinfection.

[0112] For methods and structural parts not mentioned in this embodiment, please refer to Example 1 for details.

[0113] According to the disclosure and teaching of the above description, those skilled in the art to which the present invention belongs may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the present invention.

Claims

1. A control method for a double-air duct internal and external circulation mother and baby disinfection cabinet, characterized in that the disinfection cabinet includes a cavity, an external circulation air duct and an internal circulation air duct connected to the cavity; a plurality of temperatures W1, W2, W3... Wn are set, and the temperatures W1, W2, W3... Wn are all fixed thresholds, and W1 < W2 < W3... < Wn; the control method includes the following steps: S1. Raise the temperature inside the cavity so that the temperature inside the cavity is not lower than W1; S2. Use the internal circulation air duct to make the temperature inside the cavity uniform; S3.循环执行S1-S2,提升腔体内部的温度达到设定温度W2、W3……Wn,并使腔体内部的温度达到均匀; S3. Repeat S1 - S2 to raise the temperature inside the cavity to the set temperatures W2, W3... Wn and make the temperature inside the cavity uniform; 2. The control method of a dual-duct internal and external circulation mother and baby disinfection cabinet according to claim 1, characterized in that: S4. When the temperature reaches the set temperature Wn, use the internal circulation air duct and set the working time length t0. After t0 time, drying is completed. S1.1 The external circulation fan and the heating module start working at the same time, the internal circulation fan does not work, and the heating time is t 加热 , then read the external air inlet temperature T 外 ; If T 外 If it is less than W1, the external circulation fan and heating module continue to work, and the heating time is t 加热 , until T 外 Greater than or equal to W1; S2.1 The internal circulation fan starts working, and the external circulation fan and heating module stop working. The working time is t 加热 , then read the external air inlet temperature T 外 and the inner air inlet temperature T 内 ; If T 外 Less than T 内 , the internal circulation fan continues to work, and the working time is t 加热 , until T 外 Greater than or equal to T 内 ; An external air inlet and an external air outlet are provided on the external circulation air duct, and an external circulation fan is provided at the external air outlet; an internal air inlet and an internal air outlet are provided on the internal circulation air duct, and an internal circulation fan is provided at the internal air inlet; the external air inlet, the external air outlet, the internal air inlet, and the internal air outlet are all provided on the cavity of the disinfection cabinet; a heating module is provided at the external circulation fan; the control method specifically includes the following steps: S3.1 executes S1.1 again and increases T 外 Temperature, T 外 is greater than or equal to W2; then execute S2.1 to make T 外 Greater than or equal to T 内 ; At this time, the temperature of the outer air inlet is close to the temperature of the inner air inlet, and the temperature inside the cavity is uniform, making the temperature inside the cavity greater than or equal to W2; At this time, the temperature of the external air inlet is similar to the temperature of the internal air inlet, and the temperature inside the cavity is uniform, so that the temperature inside the cavity is greater than or equal to W1; 3. The control method of a dual-duct internal and external circulation mother and baby disinfection cabinet according to claim 2, characterized in that: And so on, raise the temperature inside the cavity to W3, W4... Wn.

4. The control method of a dual-duct internal and external circulation mother and baby disinfection cabinet according to claim 2, characterized in that: In S4, when the temperature reaches the set temperature Wn, start the internal circulation fan, stop the external circulation fan and the heating module, and set the working time length of the internal circulation fan to t0. After t0 time, drying is completed. When the temperature inside the cavity reaches any one of the set temperatures W1, W2, W3... Wn and the temperature inside the cavity is made uniform by the internal circulation fan, read the humidity inside the cavity and the humidity outside. If the humidity inside the cavity is greater than or equal to the humidity outside, the external circulation fan and the internal circulation fan start working at the same time, and the heating module heats up to dehumidify the inside of the cavity; then read the humidity inside the cavity and the humidity outside again until the humidity inside the cavity is less than the humidity outside; 5. The control method of a dual-duct internal and external circulation mother and baby disinfection cabinet according to claim 2, characterized in that: Then continue to execute S1 - S2 according to S3; if the temperature reaches the set temperature Wn and the humidity inside the cavity is less than the humidity outside, then execute S4. The control method specifically includes the following steps: P1. Read the humidity inside the cavity and the humidity outside. If the humidity inside the cavity is greater than or equal to the humidity outside, the external circulation fan and the internal circulation fan start working at the same time, and the heating module does not heat up to dehumidify the inside of the cavity; Read the humidity inside the cavity and the humidity outside again until the humidity inside the cavity is less than the humidity outside; P2. Read the temperature inside the cavity. Set the temperature W1 as the first threshold. If the temperature inside the cavity is less than or equal to the temperature W1, the external circulation fan and the internal circulation fan start working, and the heating module starts heating to increase the temperature inside the cavity; Set the time interval for reading the temperature inside the cavity to t, and read the temperature inside the cavity every time t until the temperature inside the cavity is greater than temperature W1; the specific method is the same as S1.1 to S2.1; P3, read the temperature inside the cavity, set temperature T as the second threshold, if the temperature inside the cavity is greater than or equal to temperature T, it is determined that the temperature is too high and the operation is stopped; P4. If the temperature inside the cavity is greater than temperature W1 and less than temperature T, read the humidity inside the cavity and the humidity outside the cavity again; If the humidity in the cavity is greater than or equal to the external humidity, the external circulation fan and the internal circulation fan start working at the same time, the heating module does not heat, and the cavity is dehumidified; until the humidity in the cavity is less than the external humidity, then execute S2; P5. If the humidity inside the cavity is lower than the humidity outside, the external circulation fan and the internal circulation fan start to work, and the heating module starts to heat to increase the temperature inside the cavity; Set temperature W2 as the third threshold, and read the temperature inside the cavity at a time interval of t, and read the temperature inside the cavity every time t until the temperature inside the cavity is greater than temperature W2; the specific method is the same as S1.1 to S2.1; P6, start the internal circulation fan, stop the external circulation fan and the heating module, and set the working time of the internal circulation fan to t0. After t0, the drying is completed.

6. The control method of a dual-duct internal and external circulation mother and baby disinfection cabinet according to claim 2, characterized in that: When the external circulation fan and the heating module are working, the path of the external circulation air duct is that the external air flow passes through the external circulation fan, enters the external circulation air duct, is heated by the heating module, enters the cavity of the disinfection cabinet from the external air inlet, and flows out from the external air outlet.

7. The control method of a dual-duct internal and external circulation mother and baby disinfection cabinet according to claim 2, characterized in that: When the internal circulation fan is working, the path of the internal circulation air duct is that the airflow inside the cavity of the disinfection cabinet flows from the inner air outlet through the internal circulation air duct, and then, through the action of the internal circulation fan, flows into the cavity of the disinfection cabinet again from the inner air inlet.

8. The control method of a dual-duct internal and external circulation mother and baby disinfection cabinet according to claim 2, characterized in that: When the external circulation fan, the heating module and the internal circulation fan are working at the same time, the external air flow enters the external circulation air duct through the external circulation fan, is heated by the heating module, and enters the cavity of the disinfection cabinet from the external air inlet. The air flow inside the cavity of the disinfection cabinet flows through the internal circulation air duct from the internal air outlet, and then, through the action of the internal circulation fan, flows into the cavity of the disinfection cabinet again from the internal air inlet, and finally flows out from the external air outlet.

9. The control method of a dual-duct internal and external circulation mother and baby disinfection cabinet according to claim 2, characterized in that: A channel is provided between the inner air outlet and the inner air inlet, and the inner circulation fan is connected to the channel.

10. The control method of a dual-duct internal and external circulation mother and baby disinfection cabinet according to claim 9, characterized in that: The inner circulation fan, the channel, the outer circulation fan and the heating module are all arranged on the outer side wall of the cavity and are located on the same outer side wall.

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