Disinfection control method and disinfection machine

Abstract

The present invention relates to the technical field related to disinfection equipment, and its purpose is to provide a disinfection control method and a disinfection machine. The disinfection control method and the disinfection machine are hardly affected by the external ambient temperature, and have good consistency in the sterilization and disinfection effect. Regardless of whether the external ambient temperature is high or low, they can effectively sterilize and disinfect, and the user experience is good. The disinfection control method of the present invention includes: starting; performing a first heating, the first heating time is T1; detecting the first temperature t in the disinfection chamber; according to the first temperature t, selecting the second heating time T2 and performing the second heating; after an interval of T5, detecting the second temperature t' in the disinfection chamber again; according to the second temperature t', selecting the third cycle heating time interval T3 and performing the third cycle heating. The present invention solves the problem that the existing disinfection equipment and disinfection methods have relatively poor sterilization and disinfection effects and poor consistency in disinfection effects when the ambient temperature is low.

Description

Technical Field

[0001] The present invention relates to the technical field related to disinfection equipment, and in particular to a disinfection control method and a disinfection machine. Background Art

[0002] As people continue to pay more attention to healthy eating, chopping boards that come into direct contact with food have been found to be very prone to harboring dirt and grime, or breeding bacteria, mold, parasites, etc. This is because chopping boards are difficult to clean thoroughly. At the same time, due to the high humidity in the kitchen, chopping boards are often difficult to keep dry for a long time and are prone to breeding bacteria. The next time you use the chopping board to cut vegetables, the bacteria grown on the chopping board will spread to the food, which may cause potential health problems.

[0003] To this end, the prior art has developed a disinfection device that can disinfect chopping boards, knives, etc. This disinfection device usually uses the principle of hot air sterilization to disinfect the chopping boards and knives by blowing hot air. However, the ambient temperature of the kitchen varies greatly in different seasons. When the ambient temperature is low, the hot air may not reach the sterilization temperature after being blown out, thereby affecting the sterilization effect. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the disinfection method of the disinfection equipment in the prior art has poor sterilization effect when the ambient temperature is low, and to provide a disinfection control method and disinfection machine that can effectively sterilize and disinfect, and has good consistency in sterilization and disinfection effects regardless of whether the ambient temperature is high or low.

[0005] In order to solve the above problems, the present invention provides a disinfection control method, comprising:

[0006] start up;

[0007] Perform the first heating, and the first heating time is T1;

[0008] Detect the first temperature t in the disinfection chamber;

[0009] According to the first temperature t, selecting a second heating time T2 and performing a second heating;

[0010] After an interval of T5, the temperature t' in the disinfection chamber is detected again;

[0011] According to the second temperature t', a third cycle heating time interval T3 is selected and the third cycle heating is performed.

[0012] As a preferred technical solution of the above disinfection control method, after the starting step, it also includes:

[0013] Carry out ultraviolet disinfection and set the working time of the ultraviolet equipment to T4;

[0014] Determine whether the operating times n (n is a positive integer and the initial value is 0) of the ultraviolet device is greater than or equal to the rated operating times N;

[0015] If so, call the police;

[0016] If not, determine whether there is a human body approaching;

[0017] If yes, turn off the ultraviolet device and pause the working timer T4;

[0018] If not, continue with ultraviolet disinfection and continue the working time T4;

[0019] Determine whether the working time T4 reaches the preset working time;

[0020] If yes, the UV device operates for n=n+1 times and stops UV disinfection;

[0021] If not, continue to execute the step of determining whether there is a human body approaching.

[0022] As a preferred technical solution of the above disinfection control method, in the step of determining whether a human body is approaching, an infrared sensor is used to detect whether a human body is approaching.

[0023] As a preferred technical solution of the above-mentioned disinfection control method, in the step of detecting the first temperature t in the disinfection chamber and in the step of detecting the second temperature t' in the disinfection chamber again at the interval time T5, a temperature sensor is used to detect the first temperature t and the second temperature t'.

[0024] As a preferred technical solution of the above disinfection control method, in the step of selecting the second heating time T2 according to the first temperature t and performing the second heating, the method includes:

[0025] When the first temperature t is lower than 56°C, it indicates that the disinfection temperature does not meet the standard;

[0026] When the first temperature t is [60°C, 70°C], the second heating time T2 is 30 minutes;

[0027] When the first temperature t is (70°C, 80°C), the second heating time T2 is 10 minutes;

[0028] When the first temperature t is (80°C, 90°C), the second heating time T2 is 3 minutes.

[0029] As a preferred technical solution of the above disinfection control method, the first heating time T1 is greater than or equal to 5 minutes; and the interval time T5 is greater than or equal to 2 hours.

[0030] As a preferred technical solution of the above disinfection control method, in the step of selecting the third cycle heating time interval T3 according to the second temperature t' and performing the third cycle heating, the method includes:

[0031] When the second temperature t' is lower than 5°C, the third cycle heating time interval T3 is T 3(1) ;

[0032] When the second temperature t' is [5°C, 20°C], the third cycle heating time interval T3 is T 3(2) ;

[0033] When the second temperature t' is (20°C, 40°C), the third cycle heating time interval T3 is T 3(3) .

[0034] A disinfection machine for executing the above-mentioned disinfection control method comprises: a shell, in which a heating component, a temperature sensor and a controller are arranged, and a signal output end of the temperature sensor is electrically connected to a signal input end of the controller.

[0035] As an optimal technical solution for the above-mentioned disinfection machine, it also includes ultraviolet equipment and infrared sensors. The ultraviolet equipment is arranged in the shell, and the infrared sensor is arranged on the outer wall of the shell. The signal output end of the infrared sensor is electrically connected to the signal input end of the controller.

[0036] As a preferred technical solution of the above-mentioned disinfection machine, the ultraviolet device is a UV lamp.

[0037] The technical solution of the present invention has the following advantages:

[0038] (1) The disinfection control method provided by the present invention includes: starting; performing a first heating, wherein the first heating time is T1; detecting a first temperature t in the disinfection chamber; selecting a second heating time T2 based on the first temperature t and performing the second heating; detecting a second temperature t' in the disinfection chamber again after an interval T5; selecting a third cycle heating time interval T3 based on the second temperature t' and performing the third cycle heating. Since the kitchen environment temperature varies in different seasons and has different effects on the temperature in the disinfection chamber, by repeatedly detecting the temperature in the disinfection chamber, the heating time and the heating interval can be adjusted according to the actual temperature in the disinfection chamber, so that the temperature in the disinfection chamber can always be maintained at the sterilization temperature, thereby improving the consistency of sterilization and disinfection, thereby ensuring the sterilization effect.

[0039] (2) The disinfection control method provided by the present invention detects the second temperature t' in the disinfection chamber again after the second heating at an interval of T5; selects the third cycle heating time interval T3 based on the second temperature t' and performs the third cycle heating. This is because the reproduction speed of pathogenic mesophilic bacteria varies at different ambient temperatures, and the reproduction speed is faster in summer when the temperature is high. After the second heating, at an interval of T5, the inside and outside of the disinfection chamber reach thermal equilibrium, and the temperature is basically the same. The time interval for subsequent cycle heating disinfection is determined based on the temperature in the disinfection chamber at this time, which can prevent the temperature in the disinfection chamber from being at a temperature suitable for the survival of pathogenic bacteria, thereby avoiding the proliferation of bacteria and enhancing the disinfection effect.

[0040] (3) The disinfection control method provided by the present invention further includes, after the start step: performing ultraviolet disinfection and performing the working timer T4 of the ultraviolet device; judging whether the working number n (n is a positive integer and the initial value is 0) of the ultraviolet device is greater than or equal to the rated working number N; if so, alarming; if not, judging whether there is a human body approaching; if so, pausing the ultraviolet device and pausing the working timer T4; if not, continuing the ultraviolet disinfection and continuing the working timer T4; judging whether the working timer T4 reaches the preset working timer; if so, the working number n of the ultraviolet device is n=n+1, and the ultraviolet disinfection is stopped; if not, continuing to perform the step of judging whether there is a human body approaching. By setting the ultraviolet disinfection process, the sterilization and disinfection effect can be further enhanced, making the disinfection more thorough, and by detecting whether there is a human body approaching, the ultraviolet device can suspend the work when a human body approaches, thereby effectively avoiding the harm of ultraviolet rays to the human body, ensuring safety in use, and improving user experience.

[0041] (4) The disinfection machine provided by the present invention is used to execute the disinfection control method provided by the present invention. The disinfection machine includes a shell, and a heating component, a temperature sensor and a controller are arranged in the shell. The signal output end of the temperature sensor is electrically connected to the signal input end of the controller. Regardless of whether the external ambient temperature is relatively high or relatively low, the disinfection machine can effectively sterilize and disinfect, and the consistency of the disinfection effect is better, thereby improving user experience and satisfaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0043] Figure 1 Flowchart of the disinfection control method of the present invention;

[0044] Figure 2 Detailed flow chart of the disinfection control method of the present invention;

[0045] Figure 3 It is an overall schematic diagram of the disinfection machine of the present invention;

[0046] Figure 4 A top view of the sterilizing machine of the present invention;

[0047] Figure 5 It is a cross-sectional view of the sterilizing machine of the present invention;

[0048] Figure 6 It is a cross-sectional view from another angle of the sterilizer of the present invention.

[0049] Description of reference numerals:

[0050] 1. Housing; 2. Heat-generating components; 3. Temperature sensor; 4. Ultraviolet device; 5. Infrared sensor; 6. Fan. DETAILED DESCRIPTION

[0051] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0052] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present 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.

[0053] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0054] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0055] like Figure 1 The figure shows a preferred embodiment of the disinfection control method of the present invention. This disinfection control method can be used in disinfection equipment, and is particularly suitable for use in household kitchen disinfection equipment, such as cutting board disinfectors. It fully considers the impact of the external ambient temperature on the temperature within the disinfection chamber. The heating time and heating interval can be adjusted according to the actual temperature within the disinfection chamber, ensuring that the temperature within the disinfection chamber is always maintained at the sterilization temperature, ensuring consistent sterilization and disinfection, and thus ensuring the effectiveness of the sterilization.

[0056] This disinfection control method includes:

[0057] Step S1, start;

[0058] Step S2, performing the first heating, the first heating time is T1;

[0059] After starting, the first heating is performed. The duration of the first heating is T1. According to the needs of use, the first heating time T1 can be set to a shorter time, such as 5 minutes, 6 minutes, 7 minutes, etc.

[0060] Step S3, detecting the first temperature t in the disinfection chamber;

[0061] After the first heating is completed, the first temperature t in the disinfection chamber is detected. Since the ambient temperature varies in different seasons, the first temperature t will also be different.

[0062] Step S4: Select a second heating time T2 according to the first temperature t and perform the second heating;

[0063] Since the ambient temperature varies in different seasons, the first temperature t will also be different. In order to reach the disinfection temperature, the heating time T2 required for the second heating will also be different.

[0064] Step S5, at interval T5, the second temperature t' in the disinfection chamber is detected again;

[0065] After the second heating is completed, the second temperature t' in the disinfection chamber is detected again after standing for a period of time T3. Similarly, due to different ambient temperatures in different seasons, the second temperature t' in the disinfection chamber is also different.

[0066] Step S6: Select the third cycle heating time interval T3 according to the second temperature t' and perform the third cycle heating.

[0067] Since the ambient temperature varies in different seasons, the second temperature t' will also be different. In order to maintain the disinfection temperature, the third cycle heating time interval T3 will also be different.

[0068] This embodiment also provides a disinfection machine for executing the above disinfection control method. Figure 3-6 As shown, the sterilizer comprises: a housing 1 , in which a heating component 2 , a temperature sensor 3 and a controller are arranged, and a signal output end of the temperature sensor 3 is electrically connected to a signal input end of the controller.

[0069] In this embodiment, the shell 1 is a plastic shell, which is convenient for injection molding. The interior of the shell 1 is a disinfection chamber with a certain volume. A shelf for placing items such as cutting boards, knives, and chopsticks is provided in the disinfection chamber. The heating component 2 preferably adopts a PTC (Positive Temperature Coefficient) heating element. When powered on, the heating component 2 can emit heat to increase the temperature in the disinfection chamber. The temperature sensor 3 is used to detect the temperature in the disinfection chamber. Preferably, the temperature sensor 3 is arranged at a position directly opposite the heating component 2 to accurately and quickly detect the temperature in the disinfection chamber. The controller is composed of a CPU (central processing unit), a memory device, a signal conditioning circuit, a load control drive circuit, etc.

[0070] In addition, in order to make the temperature in the disinfection chamber more uniform, a fan 6 is provided in the housing 1. The fan 6 can blow air toward the heating component 2 so that the heat generated by the heating component 2 is evenly and quickly distributed in the disinfection chamber.

[0071] Furthermore, the disinfection machine of this embodiment also includes an ultraviolet device 4 and an infrared sensor 5. The ultraviolet device 4 is arranged in the housing 1, and the infrared sensor 5 is arranged on the outer wall of the housing 1. The signal output end of the infrared sensor 5 is electrically connected to the signal input end of the controller. Specifically, the ultraviolet device 4 uses a UV (Ultraviolet) lamp. When the UV lamp is turned on, it can emit ultraviolet rays to disinfect the disinfection chamber. The infrared sensor 5 can detect infrared rays with a wavelength of 9.4-10μm emitted by the human body to detect whether someone is approaching the disinfection machine. When someone approaches the disinfection machine, the controller issues a command to the ultraviolet device 4 to suspend the ultraviolet device 4 to prevent ultraviolet rays from harming the human body. Preferably, the infrared sensor 5 is arranged on the front of the disinfection machine housing. Usually, the front of the disinfection machine housing faces the user, which can be detected more promptly, thereby ensuring the user's safety.

[0072] Further, such as Figure 2 As shown, the disinfection control method of this embodiment specifically includes:

[0073] Step 1: Start;

[0074] After the disinfection machine starts working, the heating disinfection process (hot air sterilization mode) and the ultraviolet disinfection process begin at the same time. The above two disinfection processes are described separately below.

[0075] Step 2 (1): perform the first heating, the first heating time is T1;

[0076] After the sterilizer is started, the heating element 2 is powered on and generates heat. Under the action of the fan 6, the hot air is evenly distributed in the sterilization chamber, so that the temperature in the sterilization chamber is evenly increased, and the cutting board, chopsticks, etc. placed in the sterilization chamber are heated and sterilized. The first heating time T1 is preferably 5 minutes. After 5 minutes of heating, the air temperature in the sterilization chamber is basically balanced.

[0077] Step 3 (1), detecting the first temperature t in the disinfection chamber;

[0078] The temperature sensor 3 is used to detect the air temperature in the disinfection chamber at this time to obtain the first temperature t.

[0079] Step 4 (1): According to the first temperature t, select the second heating time T2 and perform the second heating;

[0080] Based on the first temperature t, the second heating time T2 is selected according to the following criteria:

[0081] When the first temperature t is lower than 56°C, it indicates that the disinfection temperature does not meet the standard;

[0082] When the first temperature t is [60℃, 70℃], the second heating time T2 is 30 minutes;

[0083] When the first temperature t is (70℃, 80℃], the second heating time T2 is 10 minutes;

[0084] When the first temperature t is (80℃, 90℃], the second heating time T2 is 3 minutes.

[0085] Step 5 (1), after an interval of time T5, the second temperature t' in the disinfection chamber is detected again;

[0086] After the second heating, the chamber is left to stand for a period of time T3. In this embodiment, the interval T5 is 2 hours. At this time, the temperature inside and outside the sterilization chamber reaches equilibrium and is substantially the same, that is, the temperature inside the sterilization chamber is substantially equal to the ambient temperature. At this time, the second temperature t' inside the sterilization chamber is again detected by temperature sensor 3.

[0087] Step 6 (1): According to the second temperature t', select the third cycle heating time interval T3 and perform the third cycle heating.

[0088] Based on the second temperature t', the third cycle heating time interval T3 is selected according to the following criteria:

[0089] When the second temperature t' is lower than 5℃, the third cycle heating time interval T3 is T 3(1) , such as 12 hours;

[0090] When the second temperature t' is [5℃, 20℃], the third cycle heating time interval T3 is T 3(2) , such as 6 hours;

[0091] When the second temperature t' is (20℃, 40℃], the third cycle heating time interval T3 is T 3(3) , such as 2 hours.

[0092] That is to say, during the third cycle heating process, the heating process is started every T3 time to maintain the sterilization temperature and the long-term sterilization and disinfection effect.

[0093] Step 2 (2): perform ultraviolet disinfection and set the working time of the ultraviolet equipment to T4;

[0094] After the sterilizer is started, the ultraviolet device 4 is powered on and emits ultraviolet rays to carry out ultraviolet disinfection on the cutting board etc. placed in the sterilizing chamber. At this moment, the controller counts the working time of the ultraviolet device 4, i.e. records the working time of the ultraviolet device 4.

[0095] Step 3 (2), determine whether the working times n (n is a positive integer and the initial value is 0) of the ultraviolet device is greater than or equal to the rated working times N;

[0096] Since the UV device 4 has a service life, if it exceeds its service life, the UV emission efficiency will decay rapidly and the disinfection effect will also be reduced. Therefore, the rated working times N of the UV device is calculated according to its service life.

[0097] N=L / T0, where T0 is the disinfection time and L is the life of the UV lamp.

[0098] Step 4 (2): If yes, an alarm is sounded to prompt the user to replace the UV device.

[0099] If not, it is determined whether there is a human body approaching, and the infrared sensor 5 is used to detect whether there is a human body approaching the disinfection machine.

[0100] Step 5 (2): If yes, pause the UV device and suspend the working timer T4 to prevent UV rays from causing harm to the human body. Pause the working timer T4 so that it can be restarted later to ensure the UV sterilization effect. At this time, the sterilization and disinfection mode is changed to a single hot air sterilization mode.

[0101] If not, continue the ultraviolet disinfection and continue the working time T4; if no human body approaches, or the human body has left, the controller controls the ultraviolet device 4 to continue working and continues to count the ultraviolet working time.

[0102] Step 6 (2), determine whether the working time T4 reaches the preset working time;

[0103] The preset working time is the time for ultraviolet sterilization, that is, T0. When the working time T4 reaches the preset working time, the ultraviolet disinfection is completed.

[0104] Step 7 (2): If yes, the UV device operates for n=n+1 times and stops UV disinfection;

[0105] After the preset working time is reached, the ultraviolet disinfection is stopped, the ultraviolet disinfection process is completed, and the ultraviolet equipment works for n=n+1 times.

[0106] If not, continue to execute the step of determining whether there is a human body approaching.

[0107] The disinfection control method of this embodiment can suspend UV disinfection when a person approaches, preventing UV damage to the human body. Furthermore, the heating disinfection time can be automatically adjusted based on the temperature reached within the housing after PTC heating. High temperatures shorten the disinfection time, while low temperatures extend the disinfection time, ensuring that the disinfection effect remains consistent regardless of ambient temperature. Furthermore, the disinfection interval of the disinfection machine can also be adaptively adjusted based on the temperature within the disinfection chamber, ensuring that the sterilization effect after disinfection does not decrease with changes in ambient temperature. Furthermore, this disinfection control method can also automatically notify the UV equipment of the expiration of its lifespan, demonstrating a high level of intelligence.

[0108] In other embodiments, according to different usage needs, the first heating time T1 can also be greater than 5 minutes, such as 6 minutes, 8 minutes, 10 minutes, etc. Similarly, the interval time T5 can also be greater than 2 hours, such as 2.5 hours, 3 hours, etc.

[0109] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A disinfection control method, characterized in that: include: start up; Perform the first heating, and the first heating time is T1; Detect the first temperature t in the disinfection chamber; According to the first temperature t, selecting a second heating time T2 and performing a second heating; After an interval of T5, the temperature t' in the disinfection chamber is detected again; According to the second temperature t', selecting a third cycle heating time interval T3 and performing a third cycle heating; The step of selecting a second heating time T2 according to the first temperature t and performing the second heating includes: When the first temperature t is lower than 56°C, it indicates that the disinfection temperature does not meet the standard; When the first temperature t is [60°C, 70°C], the second heating time T2 is 30 minutes; When the first temperature t is (70°C, 80°C), the second heating time T2 is 10 minutes; When the first temperature t is (80°C, 90°C), the second heating time T2 is 3 minutes; The step of selecting a third cycle heating time interval T3 according to the second temperature t' and performing the third cycle heating includes: When the second temperature t' is lower than 5°C, the third cycle heating time interval T3 is T 3(1) ; When the second temperature t' is [5°C, 20°C], the third cycle heating time interval T3 is T 3(2) ; When the second temperature t' is (20°C, 40°C), the third cycle heating time interval T3 is T 3(3) .

2. The disinfection control method according to claim 1, characterized in that: After the step of starting, the method further includes: Carry out ultraviolet disinfection and set the working time of the ultraviolet equipment to T4; Determine whether the operating times n of the ultraviolet device is greater than or equal to the rated operating times N, where n is a positive integer and its initial value is 0; If so, call the police; If not, determine whether there is a human body approaching; If yes, turn off the ultraviolet device and pause the working timer T4; If not, continue with ultraviolet disinfection and continue the working time T4; Determine whether the working time T4 reaches the preset working time; If yes, the UV device operates for n=n+1 times and stops UV disinfection; If not, continue to execute the step of determining whether there is a human body approaching.

3. The disinfection control method according to claim 2, characterized in that: In the step of determining whether a human body is approaching, an infrared sensor is used to detect whether a human body is approaching.

4. The disinfection control method according to claim 2, wherein: In the step of detecting the first temperature t in the disinfection chamber and in the step of detecting the second temperature t' in the disinfection chamber again at the interval T5, the first temperature t and the second temperature t' are detected by a temperature sensor.

5. The disinfection control method according to claim 1, characterized in that: The first heating time T1 is greater than or equal to 5 minutes; the interval time T5 is greater than or equal to 2 hours.

6. A sterilizing machine for executing the sterilizing control method according to any one of claims 1 to 5, characterized in that: include: A housing (1) is provided with a heating component (2), a temperature sensor (3) and a controller, wherein a signal output end of the temperature sensor (3) is electrically connected to a signal input end of the controller.

7. The sterilizing machine according to claim 6, characterized in that: It also includes an ultraviolet device (4) and an infrared sensor (5), wherein the ultraviolet device (4) is arranged in the housing (1), and the infrared sensor (5) is arranged on the outer wall of the housing (1), and the signal output end of the infrared sensor (5) is electrically connected to the signal input end of the controller.

8. The sterilizing machine according to claim 7, characterized in that: The ultraviolet device is a UV lamp.

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