CN111330038A - A kind of hand-held rapid sterilization instrument and rapid sterilization method - Google Patents

Abstract

The invention discloses a hand-held rapid sterilizer and a sterilization method thereof, comprising a shell body with a light-transmitting through hole on the front and a sterilization unit arranged inside the shell body, characterized in that the sterilization unit includes a battery and a reflector. and several groups of hot cathode UVC lamps, wherein the battery is electrically coupled to the hot cathode UVC lamps, the hot cathode UVC lamps are located in front of the reflector, and the batteries are located in the reflector On the back of the casing, a control switch is arranged on the main body of the casing. The invention has high sterilization efficiency, effectively saves sterilization time, has a larger effective sterilization distance, and is safe and reliable to use.

Description

A kind of hand-held rapid sterilization instrument and rapid sterilization method

technical field

The invention relates to the technical field of disinfection devices, in particular to a handheld rapid sterilizer.

Background technique

With the rapid development of the economy, people's living standards have been significantly improved, and people are paying more and more attention to health and environmental hygiene issues. Ultraviolet sterilization is a common sterilization method. Ultraviolet rays can destroy DNA or RNA in bacteria and viruses. Therefore, ultraviolet sterilization is widely used in operating rooms, sterile workshops and other areas, as well as tableware, clothing and other daily necessities. Although those skilled in the art have developed some sterilization devices to meet the needs of personal sterilization, for example, the application number is 2019111381743, the patent publication number is CN 110694089A, and the invention application titled is a handheld UV sterilization device, the UV sterilization device includes a main body shell And the UV sterilization unit arranged on the main body shell, the lower cavity of the main body shell is also provided with a ball assembly; the ball assembly is provided with a plurality of partially exposed balls, and the plurality of balls form a rolling movement structure and A support surface; the UV sterilization unit is arranged in the main body shell and around the ball assembly, and its light-emitting surface faces down and can be directly irradiated under the object to be sterilized, and the main body shell is also provided with a hand-held part. The UV sterilization device of the above invention is a hand-held sterilization device, and its bottom surface is provided with a ball assembly, the hand grasps the long handle, and the long handle is used to push the UV sterilization device to move, and the ball is attached to the object to move, due to the rolling of the ball, the UV LED The light emitted by the lamp is disinfected along the surface of the item, and the UV LED lamp has a certain distance from the surface of the item, and the light is better irradiated on the surface of the item through the reflective surface. The above-mentioned patent application has a complex structure and is not suitable for sterilizing uneven surfaces by rolling the balls. Moreover, due to the short UV wavelength, the balls actually play the role of blocking UV, which affects the effect. At the same time, the power of the LED UV lamp is small, and the cost of using high-power LEDs is comparable. Therefore, the sterilization and disinfection efficiency of LED ultraviolet lamps with low power is low, and long-term disinfection is required, otherwise a better sterilization effect cannot be achieved.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a handheld rapid sterilizer with high sterilization efficiency, effective saving of sterilization time, simple structure and safe and reliable use in order to solve the deficiencies of the prior art.

Another object of the present invention is to provide a rapid sterilization method that can achieve a short-range spike effect.

The present invention adopts the following technical solutions to achieve the above object:

A hand-held rapid sterilizer, comprising a shell body with a light-transmitting surface on the front and a sterilization unit arranged inside the shell body, characterized in that the sterilization unit includes a battery, a reflector and several groups of hot cathode ultraviolet UVC lamps wherein the battery is electrically connected to the hot cathode ultraviolet UVC lamp, the hot cathode ultraviolet UVC lamp is located in the front of the reflector, the battery is located at the back of the reflector, and a control switch is provided on the shell body .

As a further explanation of the above solution, the battery is divided into two parts, which are respectively arranged on both sides of the hot cathode ultraviolet UVC lamp tube, and the reflector covers the front end of the battery to form a blocking part, and the blocking part is bent downward to wrap A reflective part is formed covering the rear end of the hot cathode ultraviolet UVC lamp tube.

Further, the housing body includes a front cover and a rear cover spliced with the front cover, wherein the plurality of light-transmitting through-hole arrays are arranged on the front cover and are located in front of the hot cathode ultraviolet UVC lamp tube.

Further, the light-transmitting through holes are connected by ribs to form a regular hexagon.

Further, the edges on both sides of the front cover are provided with inwardly concave grooves, and the edges on both sides of the rear cover are provided with raised ledges, and the grooves and the ledges are combined to form a hand-held portion.

Further, the control switch includes a back switch installed in the opening of the rear cover and a side switch installed in the square hole of the groove, the back switch and the side switch are combined to form To protect the switch group, press the above two switches at the same time to turn on the hot cathode ultraviolet UVC lamp.

Further, a light blocking plate is provided at the connection between the front cover and the rear cover.

Further, the battery is a rechargeable battery, and a hot cathode ultraviolet UVC lamp driving circuit, a charging and reverse charging circuit are arranged on the lower part of the shell body, and the above-mentioned connecting circuit is electrically connected with the rechargeable battery and the hot cathode ultraviolet UVC lamp.

Further, the bottom of the housing body is provided with a USB interface, and the USB interface is electrically connected with the connection circuit.

The sterilization method of the invention is as follows: it uses a hot cathode ultraviolet UVC lamp with a power greater than 4W as the sterilization light source, starts the sterilizer within a distance of 1-2cm from the surface of the sterilization object, and quickly scans the surface of the sterilization object within a time interval of 1 second. Sterilize.

The beneficial effects that the present invention can achieve by adopting the above-mentioned technical solutions are:

1. The method of the present invention adopts the hot cathode ultraviolet UVC lamp tube as the sterilization unit, and the effective light effect of the cold cathode ultraviolet light with the same wattage is only half of the hot cathode ultraviolet light, so the effective sterilization efficiency is greatly improved, and the distance of 1cm can be killed in 0.43 seconds, 99.9% virus in the case of ^77cm2 area, effectively saving disinfection time.

2. Use the reflector to bend into a blocking part and a reflecting part, and separate the rechargeable battery from the UV lamp tube. The battery is separated from the UV lamp tube to prevent ultraviolet radiation from accelerating the aging of the battery and improve the service life; at the same time, the battery is arranged on both sides of the UV lamp tube, and the blocking part and the reflective part can effectively prevent the leakage of ultraviolet rays from the side. .

3. By setting the safety switch group to achieve double insurance and switch settings that can be turned off when the finger is off, to prevent accidental injury to users or others, and prevent children from being injured by accidental touch; using rechargeable standard batteries for power supply, no wiring required, easy to replace or reuse, and safer reliable.

Description of drawings

FIG. 1 is a schematic structural diagram of the present invention.

Figure 2 is a top view of the present invention.

Figure 3 is an exploded view of the present invention.

FIG. 4 is an enlarged view of detail A of FIG. 3 .

Description of reference numerals: 1. Housing body, 1-1, Front cover, 1-2, Back cover, 1-3, Hand-held portion, 1-3-1, Groove, 1-3-2, Raised edge, 2 , battery, 3, reflector, 3-1, barrier, 3-2, reflector, 4, hot cathode UVC lamp, 5, back switch, 6, side switch, 7, light shield, 8, connection circuit.

Detailed ways

In the description of the present invention, it should be noted that, for orientation words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower" , "Front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise" ” etc. indicating the orientation and positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or a specific orientation. The structure and operation should not be construed as limiting the specific protection scope of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or indicating the number of technical features. Thus, the definition of "first" and "second" features may expressly or implicitly include one or more of the features, and in the description of the present invention, "at least" means one or more than one, unless otherwise expressly specified. limit.

In the present invention, unless otherwise expressly specified and limited, the terms "assembled", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated It can be connected to the ground; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two components can be connected internally. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the invention, unless otherwise specified and limited, a first feature "on" or "under" a second feature may include that the first and second features are in direct contact, or that the first feature and the second feature are not directly in contact contact but through additional features between them. Also, the first feature being "above", "below" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature the height of. The first feature being "above", "below" and "below" the second feature includes that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is level below the second feature.

The technical solution will be described in detail below with reference to specific embodiments.

As shown in Figures 1-4, the present invention is a handheld rapid sterilization instrument, comprising a shell body 1 with a light-transmitting surface on the front and a sterilization unit disposed inside the shell body, and the sterilization unit includes a battery 2, A reflector 3 and several groups of hot cathode ultraviolet UVC lamps 4, wherein the battery 2 is electrically connected to the hot cathode ultraviolet UVC lamps 4, and the hot cathode ultraviolet UVC lamps 4 are located in front of the reflector 3, The battery 2 is located on the back of the reflector 3, and a control switch is provided on the housing body 1; the battery 2 is divided into two parts, which are respectively arranged on both sides of the hot cathode ultraviolet UVC lamp 4, and the reflector is 3. Cover the front end of the battery to form a blocking part 3-1, and the blocking part 3-1 is bent downward to cover the rear end of the hot cathode ultraviolet UVC lamp 4 to form a reflective part 3-2. On the one hand, a reflector is used. Reflect the ultraviolet rays to the light-transmitting surface as much as possible. In this embodiment, the light-transmitting surface is a light-transmitting through hole to improve the utilization rate of ultraviolet rays. Service life; the plane of the blocking part 3-1 is higher than the plane of the hot cathode ultraviolet UVC lamp tube, which can effectively prevent the leakage of ultraviolet light from the side. On the other hand, the corners of the blocking part 3-1 are round The arc transition, the arc direction of the arc transition can make the ultraviolet rays reflect to the light-transmitting surface, and can better concentrate the light.

Further, the housing body 1 includes a front cover 1-1 and a rear cover 1-2 spliced with the front cover, wherein a plurality of the light-transmitting through-hole arrays are arranged in the front cover and are located in the hot cathode ultraviolet UVC lamp tube. 4 Front; the light-transmitting through holes are connected by ribs to form a regular hexagon; the light-transmitting surface of this embodiment can also be made of light-transmitting quartz glass; Slot 1-3-1, the edges on both sides of the back cover are provided with raised ledges 1-3-2, the groove and the ledge are combined to form the hand-held portion 1-3; Anti-slip strips are provided inside to improve the friction coefficient of the hand-held part and prevent the sterilizer from falling off the user's hands during the disinfection process.

Further, the control switch includes a back switch 5 installed in the opening of the rear cover 1-2 and a side switch 6 installed in the square hole of the groove 1-3-1, The back switch 5 and the side switch 6 are combined to form a protection switch group, and the hot cathode ultraviolet UVC lamp is turned on by pressing the above two switches at the same time, so as to realize double insurance and switch settings that can be turned off when the finger is removed, so as to prevent accidental injury to users. or others, to prevent children from accidentally touching and consuming power; a light blocking plate 7 is provided at the connection between the front cover 1-1 and the rear cover 1-2 to prevent ultraviolet rays from leaking from the connection and hurting people.

Further, the battery 2 is a rechargeable battery, and the lower part of the shell body is provided with a connecting circuit 8, which includes a hot cathode ultraviolet UVC lamp driving circuit, a charging and reverse charging circuit, and the above-mentioned connecting circuit 8 is connected with the rechargeable battery and the hot cathode ultraviolet UVC lamp. Electrical connection; the bottom of the shell body is provided with a USB interface, and the USB interface is electrically connected to the connection circuit 8. The user can choose to replace the lithium battery or charge the battery to supply power to the sterilizer, without wiring, and it is easier to carry. The invention provided with charging and anti-charging circuits can be used as a charging treasure, and the invention can also be used as a money detector.

In this embodiment, the product parameters are only used as examples for reference, and can be adjusted according to the actual situation. The size of the sterilizer is preferably 185×80×30mm. From the perspective of ergonomics, the width of the body is just right to be held with one hand, so as to avoid unintentional extension of fingers and exposure to ultraviolet rays. It is easy to carry and control, and the angle can be flexibly adjusted by hand. Clear and kill more disinfection dead corners. In the present invention, the lamp type selected is hot cathode ultraviolet UVC lamp, the lamp power is 14W (2×7W), and the UVC light intensity of the lamp is measured according to the manufacturer: 254nm irradiation intensity (1cm distance) ≥ 42000μW/cm ^2. The total power of the sterilizer is 18W, the theoretical calculation value of UVC light intensity of the sterilizer is: 254nm irradiation intensity (1cm distance) ≥ 67200μW/cm ² , the power supply method is replaceable lithium battery, and the applicable lithium battery model is standard 18650 flat head There are 2 lithium batteries, the capacity range of single lithium battery is more than 1200mAh-3000mAh, and the UV coverage area is 7cm×11cm.

Theoretically, in order to achieve "second kill" virus or bacteria, the energy of UV should reach 50mj (millijoules). The built-in 14W hot cathode UV lamp, plus the high-efficiency reflector, is equivalent to 14×1.6=22W of UV energy, combined with the UV coverage area, that is, 14×1.6×0.4/77×1000=116mj, it can be seen from the above theoretical calculation Under the above circumstances, the present invention can generate 116mj of ultraviolet energy, so the sterilizer can kill 99.9% of the virus within a distance of 1-2cm and an area of 77cm2, or can kill a distance of 1cm in 0.43 seconds and an area of 77cm2. 99.9% virus, greatly saves disinfection time.

Compared with the prior art, since the cold cathode with the same wattage has only half of the effective luminous efficacy of the hot cathode ultraviolet rays, the sterilization efficiency of the present invention is much higher than that of the same type of sterilizing rod. It takes at least 5 seconds to kill the poison, and the effective killing distance of the present invention is larger, using a hot cathode ultraviolet UVC lamp with a power greater than 14W as the sterilization light source, and starting the sterilizer within a distance of 1-2cm from the surface of the sterilization object can also be powerful Disinfection, quickly scan the surface of the sterilized object for sterilization within a time range of 1 second interval; in the embodiment, 99.9% of the virus can be killed in 0.43 seconds at a distance of 1cm and an area of 77cm ² , realizing the true meaning of the virus. Second kill, this example uses a 22W hot cathode ultraviolet UVC lamp.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, some modifications and improvements can be made without departing from the inventive concept of the present invention, which belong to the present invention. The scope of protection of the invention.

Claims (10)

1. The utility model provides a hand-held type rapid sterilization appearance, is in including the shell main part of preceding zone light-transmitting surface and setting the inside sterilizing unit of shell main part, its characterized in that, sterilizing unit includes battery, reflector and a plurality of hot cathode ultraviolet UVC fluorescent tube of group, wherein the battery with hot cathode ultraviolet UVC fluorescent tube electric connection, hot cathode ultraviolet UVC fluorescent tube is located the preceding of reflector, the battery is located the back of reflector, be provided with control switch in the shell main part.

2. The hand-held rapid sterilizer of claim 1, wherein the battery is divided into two parts, which are respectively disposed on two sides of the hot cathode ultraviolet UVC lamp tube, and the reflector covers the front end of the battery to form a blocking portion, and the blocking portion is bent downward to cover the rear end of the hot cathode ultraviolet UVC lamp tube to form a reflecting portion.

3. The hand-held rapid sterilizer of claim 1, wherein the plane of said blocking portion is higher than the plane of said hot cathode ultraviolet UVC lamp tube, and the corners of said blocking portion are all rounded.

4. The hand-held rapid sterilizer of claim 1, wherein the housing body comprises a front cover and a rear cover spliced with the front cover, and the light-transmitting surface is positioned on the front cover, wherein the light-transmitting surface is formed by arranging a plurality of light-transmitting through holes in the front cover in an array manner and is positioned in front of the hot cathode Ultraviolet (UVC) lamp tube, and the light-transmitting through holes are connected into a regular hexagon by ribs; or the light-transmitting surface is light-transmitting quartz glass.

5. The hand-held rapid sterilizer of claim 4, wherein two side edges of the front cover are provided with concave grooves, two side edges of the back cover are provided with convex edges, and the grooves and the convex edges are combined to form a hand-held part.

6. The hand-held rapid sterilizer of claim 5, wherein the control switch comprises a back switch installed in the opening of the rear cover and a side switch installed in the square hole of the groove, the back switch and the side switch form a protection switch group in combination, and the hot cathode ultraviolet UVC lamp tube is turned on by pressing the two switches.

7. The hand-held rapid sterilizer of claim 4, wherein a light barrier is disposed at the joint of the front cover and the rear cover.

8. The hand-held rapid sterilizer of claim 1, wherein the battery is a rechargeable battery, the lower part of the housing body is provided with a hot cathode ultraviolet UVC lamp driving circuit, a charging and reverse charging circuit, and the connecting circuit is electrically connected with the rechargeable battery and the hot cathode ultraviolet UVC lamp; and a USB interface is arranged at the bottom of the shell main body and electrically connected with the connecting circuit.

9. A rapid sterilization method using the hand-held rapid sterilizer of any one of claims 1 to 8, which is characterized in that a hot cathode Ultraviolet (UVC) lamp with power of more than 4W is used as a sterilization light source, the sterilizer is started within a distance of 1-2cm from the surface of the sterilization object, and the sterilization is performed by rapidly scanning the surface of the sterilization object within a time interval of 1 second.

10. The rapid sterilization method according to claim 9, wherein the power of the hot cathode ultraviolet UVC lamp is 22W.

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