A sterilization device and sterilization method with visualized sterilization effect

Abstract

The present invention provides a sterilization device and a sterilization method with visualized sterilization effect. The sterilization device comprises a sterilization display part and a sterilization part; the sterilization display part generates an excitation light source for exciting the sterilized article to produce fluorescence; the sterilization part emits sterilization light; the sterilization light is used to kill microorganisms; if there are bacteria on the sterilized article, there will be fungi such as mold, and when the excitation light source is used to irradiate the sterilized article, the microorganism or its metabolite will produce a fluorescence reaction and emit fluorescence of different colors; the human eye can directly observe the fluorescence irradiated by the excitation light source to judge the distribution of microorganisms on the sterilized article; the surface of the article is irradiated with the sterilization light; the sterilization light kills the microorganism; if the microorganism disappears, the fluorescence on the microorganism will also disappear, so that the user can observe the difference between the surface of the article before and after sterilization, thereby making the effect visualized.

Description

Technical Field

[0001] The present invention relates to the field of ultraviolet sterilization, and in particular to a sterilization device and a sterilization method with visualized sterilization effect. Background Art

[0002] UVCLED (deep ultraviolet LED) can generally be used for sterilization due to its wavelength advantage; however, the ultraviolet light emitted by UVCLED is invisible light; at the same time, when UVCLED is used for sterilization, the sterilization process cannot be displayed; in daily use, users cannot observe the difference between the surface of the object before and after sterilization. Generally, the sterilization is completed after setting a fixed sterilization time, but these cannot confirm the effect after sterilization. In order to understand the effect after sterilization, it is generally necessary to use additional microbial detection equipment to detect the microorganisms on the objects before and after sterilization. However, this implementation is inconvenient and it is not convenient for users to watch in real time. Summary of the invention

[0003] The present invention provides a sterilization device and a sterilization method with a visualized sterilization effect that allows a user to observe the difference between the surface of an article before and after sterilization.

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is: a sterilization device with visualized sterilization effect, comprising a sterilization display part and a sterilization part; the sterilization display part generates an excitation light source for stimulating the object to be sterilized to produce fluorescence; the sterilization part emits sterilization light when the object to be sterilized produces fluorescence; the sterilization light is used to kill microorganisms.

[0005] The above arrangement utilizes an excitation light source to illuminate the surface of the article to be sterilized; if there are bacteria or fungi such as mold on the article to be sterilized, the excitation light source is used to illuminate the article to be sterilized, and the microorganisms or their metabolites will produce a fluorescent reaction and emit fluorescence of different colors; the human eye can directly observe the fluorescence irradiated by the excitation light source to determine the distribution of microorganisms on the article to be sterilized; the surface of the article is irradiated with sterilizing light; the sterilizing light kills the microorganisms; if the microorganism disappears, the fluorescence on the microorganism will also disappear, and the user can observe the difference between the surface of the article before and after sterilization; thereby making the effect visualized.

[0006] Furthermore, the excitation light source is ultraviolet light with a wavelength range of 320-420 nm; and the sterilization light is ultraviolet light with a wavelength range of 200-285 nm.

[0007] With the above settings, ultraviolet light with a wavelength range of 320-420nm has strong penetrating power; ultraviolet light is not easily blocked when irradiated on the surface of an object; and then ultraviolet light excites the mold to cause the mold to produce fluorescence; ultraviolet light with a wavelength range of 200-285nm has a good bactericidal effect.

[0008] Furthermore, the irradiation range of the sterilizing light is larger than the range of the microorganisms producing fluorescence.

[0009] The above settings make it easy to observe the process of microbial killing.

[0010] Furthermore, the germicidal light is moved within the region where the fluorescence is generated.

[0011] The above settings make it easy to observe the process of microbial killing.

[0012] Furthermore, the sterilization display element includes more than one UVA LED; the sterilization element includes more than one UVC LED.

[0013] Furthermore, it also includes a display device; the display device is used to display the interaction process between the light generated by the excitation light source, the sterilization light and the microorganisms.

[0014] With the above arrangement, by providing a display device, the user can observe the process of killing microorganisms.

[0015] Furthermore, it also includes a detection device and a control device, the detection device is used to obtain the distribution area of ​​the fluorescence generated by the object to be sterilized; the control device is used to control the time for the sterilization element to emit sterilization light according to the distribution area of ​​the fluorescence generated by the object to be sterilized.

[0016] The above arrangement controls the sterilization element to emit sterilization light to kill microorganisms according to the distribution area of ​​the fluorescence, which is convenient for control.

[0017] The present invention also includes a sterilization method with visualized sterilization effect, comprising the following steps:

[0018] (1). Start the sterilization display element and the display device; the sterilization display element generates an excitation light source.

[0019] (2) The sterilization display element is irradiated on the surface of the object to be sterilized; if there are microorganisms on the surface of the object to be sterilized, the microorganisms will produce fluorescence; the display device displays the distribution of microorganisms on the object to be sterilized.

[0020] (3) Start the sterilization element; the sterilization element emits sterilization light when the object to be sterilized produces fluorescence.

[0021] (4) The sterilizing light is irradiated onto the surface of the object to be sterilized; if there are microorganisms on the surface of the object to be sterilized, the sterilizing light will kill the microorganisms.

[0022] (5) The microorganisms killed on the surface of the sterilized object disappear; the fluorescence produced by the killed microorganisms disappears; the display device displays the distribution of microorganisms on the sterilized object after sterilization.

[0023] The above method uses an excitation light source to illuminate the surface of the object to be sterilized; if there are bacteria or mold on the object to be sterilized, the excitation light source is used to illuminate the object to be sterilized, and the microorganisms or their metabolites will produce a fluorescent reaction and emit fluorescence of different colors; at the same time, the display device displays the action process of the light generated by the excitation light source and the microorganisms; in this way, the human eye can directly observe the fluorescence to determine the distribution of microorganisms on the object to be sterilized; then the sterilization light is irradiated on the microorganisms on the surface of the object to be sterilized; if the microorganism disappears, the fluorescence on the microorganism will also disappear, and at the same time, the display device displays the action process of the sterilization light and the microorganism; thus, the user can observe the difference between the surface of the object before and after sterilization; thus, the effect is visualized.

[0024] Furthermore, step (3) specifically includes: starting the sterilization element; the sterilization element moves and emits sterilization light.

[0025] Furthermore, the method further includes step (a) before step (1).

[0026] (a) A first sterilization coefficient is preset in the control device, and the first sterilization coefficient is the proportion of the fluorescent area to the surface of the object to be sterilized.

[0027] Step (3) also includes: the detection device obtains the distribution area of ​​the fluorescence generated by the object to be sterilized and sends it to the control device; the control device calculates the current sterilization coefficient and compares the current sterilization coefficient with the first sterilization coefficient; if the current sterilization coefficient is greater than or equal to the first sterilization coefficient, the sterilization component is started.

[0028] The above setting is to set the first sterilization coefficient to determine whether the microorganisms existing on the surface of the object to be sterilized meet the requirements for sterilization. If the current sterilization coefficient is less than the first sterilization coefficient, it is determined that the number of microorganisms existing on the surface of the object to be sterilized is small and no sterilization is required; if the current sterilization coefficient is greater than or equal to the first sterilization coefficient, it is determined that the number of microorganisms existing on the surface of the object to be sterilized is large and no sterilization is required; in this way, the sterilization component is controlled to emit sterilization light according to the growth of microorganisms existing on the surface of the object to be sterilized, which facilitates control; at the same time, when the number of microorganisms existing on the surface of the object to be sterilized is small, the sterilization component is turned off, which saves resources.

[0029] Furthermore, step (a) also includes: storing a first sterilization time and a second sterilization time in the control device, the first sterilization time being the duration for which the sterilization component emits sterilization light when the current sterilization coefficient is equal to the first sterilization coefficient; the second sterilization time being the duration for which the sterilization component emits sterilization light when the current coefficient is greater than the first sterilization coefficient.

[0030] The above setting, because when the current sterilization coefficient is large, the number of microorganisms attached to the surface of the object to be sterilized is large; if the sterilization element emits the sterilization light for a short time, the microorganisms on the surface of the object to be sterilized cannot be completely killed; by comparing the current sterilization coefficient with the first sterilization coefficient; controlling the duration of the sterilization light emitted by the sterilization element; the microorganisms on the surface of the object to be sterilized can be fully killed. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of the cabinet using the present invention.

[0032] Figure 2 The front view of the cabinet body without the cover plate is shown in FIG.

[0033] Figure 3 It is a schematic diagram of the structure of the sterilization display element and the sterilization element in the present invention.

[0034] Figure 4 The figure is a side view of a cabinet body without a cover plate using the present invention.

[0035] Figure 5 Flow chart of the sterilization method of the present invention. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] like Figure 1-4 As shown; a sterilization device with a visual sterilization effect is installed in a cabinet 1 for use; the cabinet 1 includes a cabinet body 11 and a cover plate 12 installed on the cabinet body 11. The cabinet body 11 is provided with one or more partitions; the partitions divide the cabinet body 11 into two or more accommodating areas 14

[0038] The sterilization device includes a sterilization display element 2, a sterilization element 3 and a display device; the sterilization display element 2 generates an excitation light source for exciting the sterilized article to generate fluorescence; the sterilization element 3 emits sterilization light when the sterilization display element 2 generates the fluorescent excitation light source; the fluorescent excitation light source is used to display microorganisms; the sterilization light is used to kill microorganisms. The display device is used to display the light generated by the excitation light source, the sterilization light and the action process of the microorganisms.

[0039] The display device includes a detection member (not shown in the figure) and a display member 4; the detection member is arranged on the cabinet body 11; the display member 4 is arranged on the outer wall surface of the cover plate 12; the detection member is connected to the display member 4 by signal; in this embodiment, the detection member is a camera; the display member 4 is a display screen. By setting the display device, the user can observe the process of microorganisms being killed.

[0040] In this embodiment, the sterilization display element 2 , the sterilization element 3 and the detection element are all arranged in each accommodating area 14 .

[0041] The sterilization display element 2 includes more than one UVALED (not shown in the figure); the excitation light source for exciting the sterilized article to produce fluorescence is generated by UVALED; the sterilization element 3 includes more than one UVCLED (not shown in the figure); the sterilization light is generated by UVCLED; in this embodiment, there are two sterilization display elements 2; the two sterilization display elements 2 are symmetrically arranged about the sterilization element 3; the two sterilization display elements 2 are relatively inclined downward.

[0042] The sterilization device further includes a sterilization drive device (not shown in the figure) for driving the sterilization element 3 to move; the sterilization drive device drives the sterilization element 3 along the Figure 3 The X direction moves back and forth.

[0043] By using an excitation light source to illuminate the surface of the item to be sterilized; if there are bacteria or mold on the item to be sterilized, when the excitation light source is used to illuminate the item to be sterilized, the microorganisms or their metabolites will produce a fluorescent reaction and emit fluorescence of different colors; the human eye can directly observe the fluorescence of the excitation light source to determine the distribution of microorganisms on the item to be sterilized; the surface of the item is irradiated with sterilizing light; the sterilizing light kills the microorganisms; if the microorganism disappears, the fluorescence on the microorganism will also disappear, and the user can observe the difference between the surface of the item before and after sterilization; thus making the effect visual.

[0044] In this embodiment, the excitation light source is ultraviolet light with a wavelength range of 320-420nm. Ultraviolet light with a wavelength range of 320-420nm has strong penetrating power; ultraviolet light is not easily blocked when irradiated on the surface of an object; and then the ultraviolet light excites the mold to cause the mold to produce fluorescence. In this embodiment, the wavelength of the sterilizing light is ultraviolet light in the range of 200-285nm, which has a good sterilization effect.

[0045] In this embodiment, the irradiation range of the sterilizing light is larger than the range of the microorganisms that produce fluorescence. This makes it easier to observe the process of killing microorganisms. The sterilizing light moves within the irradiation area of ​​the light that produces fluorescence. This makes it easier to observe the process of killing microorganisms.

[0046] When in use, first start the display device; the display element continues to display the inside of the cabinet; then start the sterilization display element 2 to irradiate the items in the cabinet; the microorganisms on the surface of the items absorb UVA ultraviolet light to produce fluorescence; then start the sterilization drive device and the sterilization element 3; the sterilization element 3 moves along the X-axis direction while irradiating the items in the cabinet; UVC ultraviolet light kills the microorganisms on the surface of the items; this makes the sterilization process visible.

[0047] Furthermore, the sterilization device also includes a detection device (not shown in the figure) and a control device (not shown in the figure), the control device is a control chip; the detection device is used to identify the surface area of ​​the object to be sterilized and obtain the area of ​​fluorescence on the object to be sterilized; in this embodiment, the detection device is a camera device; the camera device obtains an image of the object to be sterilized and then identifies the area of ​​the object to be sterilized through the image, and the camera device emits fluorescence to the sterilization display element through a narrow-band color filter to obtain an image and identifies the distribution area of ​​the fluorescence of the object to be sterilized through the image. The camera device identifies the object to be sterilized and the distribution area of ​​the fluorescence of the object to be sterilized through the image, which is a prior art and will not be described in detail here.

[0048] The detection device is arranged in at least one accommodating area; in this embodiment, the detection device is arranged on each surface of each accommodating area and on the back side of the cover plate.

[0049] The detection device obtains the distribution area of ​​the fluorescence generated by the sterilized object; the control device controls the time for the sterilization element to emit the sterilization light according to the distribution area of ​​the fluorescence generated by the sterilized object. The sterilization element is controlled to emit the sterilization light to kill the microorganisms according to the distribution area of ​​the fluorescence, which is convenient for control.

[0050] like Figure 5 As shown; the present invention also includes a sterilization method with visualized sterilization effect, comprising the following steps:

[0051] (a) A first sterilization coefficient is preset in the control device, and the first sterilization coefficient is the ratio of the fluorescent area to the surface of the object to be sterilized. A first sterilization time and a second sterilization time are stored in the control device. The first sterilization time is the duration of the sterilization element emitting sterilization light when the current sterilization coefficient is equal to the first sterilization coefficient; the second sterilization time is the duration of the sterilization element emitting sterilization light when the current coefficient is greater than the first sterilization coefficient. In this embodiment, the first sterilization coefficient is the ratio of the sum of the fluorescent area of ​​the object to be sterilized excluding the bottom surface to the sum of the surface area of ​​the object to be sterilized excluding the bottom surface, reaching 70%; the first sterilization time is 40 minutes; and the second sterilization time is 80 minutes.

[0052] (1). Start the sterilization display element and the display device; the sterilization display element generates an excitation light source.

[0053] (2) The sterilization display element is irradiated on the surface of the object to be sterilized; if there are microorganisms on the surface of the object to be sterilized, the microorganisms will produce fluorescence; the display device displays the distribution of microorganisms on the object to be sterilized.

[0054] (3) Start the sterilization element; the sterilization element emits sterilization light when the object to be sterilized generates fluorescence; specifically, the detection device obtains the distribution area of ​​the fluorescence generated by the object to be sterilized and sends it to the control device, the control device calculates the current sterilization coefficient and compares the current sterilization coefficient with the first sterilization coefficient; if the current sterilization coefficient is greater than or equal to the first sterilization coefficient, the sterilization element is started for sterilization; if the current sterilization coefficient is less than the first sterilization coefficient, step (2) is performed.

[0055] Specifically, first, the sum of the surface areas of the objects to be sterilized excluding the bottom surface is obtained through the detection device; then, the sum of the fluorescent areas of the objects to be sterilized excluding the bottom surface is obtained through the detection device; then, the control device calculates the ratio of the sum of the fluorescent areas of the objects to be sterilized excluding the bottom surface to the sum of the surface areas of the objects to be sterilized excluding the bottom surface, and obtains the current sterilization coefficient.

[0056] (4) The sterilizing light is irradiated on the surface of the object to be sterilized; if there are microorganisms on the surface of the object to be sterilized, the sterilizing light kills the microorganisms;

[0057] (5) The microorganisms killed on the surface of the sterilized object disappear; the fluorescence produced by the killed microorganisms disappears; the display device shows the distribution of microorganisms on the sterilized object after sterilization

[0058] The above method uses an excitation light source to illuminate the surface of the object to be sterilized; if there are bacteria or mold on the object to be sterilized, the excitation light source is used to illuminate the object to be sterilized, and the microorganisms or their metabolites will produce a fluorescent reaction and emit fluorescence of different colors; at the same time, the display device displays the action process of the light generated by the excitation light source and the microorganisms; in this way, the human eye can directly observe the fluorescence to determine the distribution of microorganisms on the object to be sterilized; then the sterilization light is irradiated on the microorganisms on the surface of the object to be sterilized; if the microorganism disappears, the fluorescence on the microorganism will also disappear, and at the same time, the display device displays the action process of the sterilization light and the microorganism; thus, the user can observe the difference between the surface of the object before and after sterilization; thus, the effect is visualized.

[0059] When the current sterilization coefficient is large, the number of microorganisms attached to the surface of the item to be sterilized is large; if the sterilization element emits sterilization light for a short time, the microorganisms on the surface of the item to be sterilized cannot be completely killed; by comparing the current sterilization coefficient with the first sterilization coefficient, the duration of the sterilization light emitted by the sterilization element is controlled so that the microorganisms on the surface of the item to be sterilized can be fully killed. The first sterilization coefficient is set to determine whether the microorganisms on the surface of the item to be sterilized meet the requirements for killing. If the current sterilization coefficient is less than the first sterilization coefficient, it is determined that the number of microorganisms on the surface of the item to be sterilized is small and does not need to be killed; if the current sterilization coefficient is greater than or equal to the first sterilization coefficient, it is determined that the number of microorganisms on the surface of the item to be sterilized is large and needs to be killed; in this way, the sterilization element is controlled to emit sterilization light according to the growth of microorganisms on the surface of the item to be sterilized, which is convenient for control; at the same time, when the number of microorganisms on the surface of the item to be sterilized is small, the sterilization element is turned off, which saves resources.

[0060] In the above method, step (3) further includes: starting the sterilization element; the sterilization element moves and emits sterilization light.

Claims

1. A sterilization device with visualized sterilization effect, characterized in that: It includes a sterilization display element and a sterilization element, and also includes a detection device and a control device; the sterilization display element generates an excitation light source for exciting the sterilized article to generate fluorescence; The sterilization element emits sterilization light when the object to be sterilized produces fluorescence; the detection device is used to obtain the distribution area of ​​the fluorescence produced by the object to be sterilized; the control device is used to control the time when the sterilization element emits the sterilization light according to the distribution area of ​​the fluorescence produced by the object to be sterilized; the surface of the object is irradiated with the sterilization light; the sterilization light is used to kill microorganisms; if the microorganism disappears, the fluorescence on the microorganism will also disappear, and then the user can observe the difference between the surface of the object before and after sterilization, thereby making the effect visualized.

2. A sterilization device with visualized sterilization effect according to claim 1, characterized in that: The excitation light source is ultraviolet light with a wavelength range of 320-420 nm; the sterilization light is ultraviolet light with a wavelength range of 200-285 nm.

3. A sterilization device with visualized sterilization effect according to claim 1, characterized in that: The irradiation range of the sterilizing light is larger than the range of the microorganisms that produce fluorescence.

4. A sterilization device with visualized sterilization effect according to claim 3, characterized in that: The germicidal light moves within the area where the fluorescence is produced.

5. A sterilization device with visualized sterilization effect according to claim 2, characterized in that: The sterilization display element includes more than one UVA LED; the sterilization element includes more than one UVC LED.

6. A sterilization device with visualized sterilization effect according to claim 4, characterized in that: It also includes a display device; the display device is used to display the interaction process between the light generated by the excitation light source, the sterilization light and the microorganisms.

7. A sterilization method with visualized sterilization effect, using the sterilization device according to any one of claims 1 to 6, characterized in that: The following steps are involved: (a) Preset a first sterilization coefficient in the control device, where the first sterilization coefficient is the ratio of the fluorescent area to the surface of the object to be sterilized; (1) Start the sterilization indicator and the display device; the sterilization indicator generates an excitation light source; (2) The sterilization indicator is irradiated on the surface of the item to be sterilized; if there are microorganisms on the surface of the item to be sterilized, the microorganisms will produce fluorescence; The display device displays the distribution of microorganisms of the items to be sterilized; (3) The sterilization device is started, and the detection device obtains the distribution area of ​​the fluorescence generated by the sterilized object and sends it to the control device; by setting a first sterilization coefficient to determine whether the microorganisms on the surface of the sterilized object meet the requirements for sterilization, the control device calculates the current sterilization coefficient and compares the current sterilization coefficient with the first sterilization coefficient; If the current sterilization coefficient is less than the first sterilization coefficient, it is determined that the number of microorganisms on the surface of the object to be sterilized is small, and step (2) is performed without sterilization; if the current sterilization coefficient is greater than or equal to the first sterilization coefficient, the sterilization component is activated; (4). The sterilization light is irradiated on the surface of the object to be sterilized; if there are microorganisms on the surface of the object to be sterilized, the sterilization light kills the microorganisms; (5) The microorganisms killed on the surface of the sterilized object disappear; the fluorescence produced by the killed microorganisms disappears; The display device displays the distribution of microorganisms of the items to be sterilized after sterilization.

8. A sterilization method with visualized sterilization effect according to claim 7, characterized in that: Step (a) also includes: storing a first sterilization time and a second sterilization time in the control device, the first sterilization time being the duration for which the sterilization component emits sterilization light when the current sterilization coefficient is equal to the first sterilization coefficient; the second sterilization time being the duration for which the sterilization component emits sterilization light when the current coefficient is greater than the first sterilization coefficient.

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