CN218810600U - Overflowing type ultraviolet disinfection and sterilization device - Google Patents

Abstract

The utility model discloses an overflow ultraviolet disinfection and sterilization device, which comprises a shell, a disinfection and sterilization pipeline and an ultraviolet disinfection and sterilization lamp bank; an inner cavity in an elliptic cylindrical structure is formed in the shell; the sterilizing pipeline is of an S-shaped bent pipe structure and comprises a water inlet pipeline, an overflowing pipeline and a water outlet pipeline which are communicated with each other; the ultraviolet killing lamp group comprises one group, two groups and three groups which are arranged on the inner wall surface of the inner cavity. The utility model discloses in, kill and kill the pipeline and adopt S type bent pipe structure, prolonged disinfection 'S time, improved disinfection' S efficiency, inlet channel, outlet conduit locate respectively in the cavity on the horizontal line that two focuses of ellipse locate to stand a set of, focus of two groups respectively and shine, overflow the pipeline and locate in the cavity on the horizontal line that the ellipse central point located, stand the direct irradiation of three groups, with the effect that disinfection has been improved to the mode of killing of pertinence.

Description

An over-flow ultraviolet disinfection and sterilization device

technical field

The utility model relates to the technical field of water treatment disinfection and sterilization, in particular to an over-flow ultraviolet disinfection and sterilization device.

Background technique

As we all know, ultraviolet disinfection is to use ultraviolet rays of appropriate wavelengths to destroy the molecular structure of DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) in the cells of microorganisms, causing growth cell death and (or) regenerative cell death, to achieve sterilization Effect. For example, the deep ultraviolet light source disclosed in the Chinese utility model patent CN204441329U, its manual records that "the killing effect of ultraviolet rays on bacteria and viruses is generally completed within a few seconds...Ultraviolet disinfection technology has the highest bactericidal broad-spectrum among all disinfection technologies , It has a high-efficiency killing effect on almost all bacteria and viruses."

Based on the basis of modern epidemiology, medicine and photodynamics, the use of ultraviolet disinfection technology to irradiate running water can directly kill various bacteria, viruses, parasites, algae and other pathogens in the water. However, in the prior art, there are still defects in the practical application of the above-mentioned technical scheme of utilizing ultraviolet rays to disinfect running water, such as:

The device and method for treating fluid disclosed in Chinese invention patent CN1685212A include a fluid channel, an irradiation source outside the fluid channel, and an elliptical reflection groove. Low;

A water treatment ultraviolet sterilizing water channel and its sterilization method disclosed in Chinese invention patent CN107601614A include a sterilizing water channel, multiple ultraviolet lamps, reflective devices, water inlets and water outlets. High, inconvenient to disassemble.

Utility model content

The technical problem to be solved by the utility model is to provide a flow-through ultraviolet disinfection and sterilization device with good disinfecting efficiency and effect, simple and practical structure.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions: an over-flow ultraviolet disinfection and sterilization device, including a casing, a disinfection pipeline and an ultraviolet disinfection lamp group;

The inside of the shell is provided with an inner cavity in an elliptical cylindrical structure;

The killing pipeline has an S-shaped elbow structure, is centrally installed in the inner cavity, and is arranged along the elliptical long axis of the inner cavity. The killing pipeline includes interconnected water inlet pipes, flow-through Pipeline and water outlet pipe, the water inlet pipe and the water outlet pipe are respectively located on the horizontal line where the two foci of the ellipse in the inner cavity are located, and the flow-through pipe is located at the center point of the ellipse in the inner cavity on the horizontal line;

The ultraviolet killing lamp group includes one group, two groups and three groups installed on the inner wall of the inner cavity. The first group and the second group are symmetrically arranged on both sides of the inner cavity, and each has Two ultraviolet lamps distributed at intervals are respectively focused and irradiated on the water inlet pipe and the water outlet pipe, and the three groups have one ultraviolet lamp correspondingly irradiated on the flow-through pipe.

Further, the ellipse of the cross-section of the inner cavity is vertically long, the killing pipes are vertically arranged along the long axis of the ellipse of the inner cavity, and the water inlet pipe and the water outlet pipe are respectively located in the inner cavity. On the horizontal line where the upper and lower foci of the ellipse in the cavity are located, the first group and the second group are respectively symmetrically arranged at the upper and lower ends of the inner cavity, and are gathered and irradiated on the water inlet pipe and the water outlet pipe respectively. The group is centrally arranged at the waist of the inner cavity and irradiates horizontally on the flow passage.

Further, the ellipse of the cross section of the inner cavity is flat, the killing pipes are arranged horizontally along the long axis of the ellipse of the inner cavity, and the water inlet pipe and the water outlet pipe are respectively located in the inner cavity On the horizontal line where the two left and right foci of the ellipse are located, the first group and the second group are respectively symmetrically arranged at the left and right ends of the inner cavity, and are respectively gathered and irradiated on the water inlet pipe and the water outlet pipe, and the three groups are centered It is arranged at the bottom of the inner cavity and irradiates the flow passage vertically.

Further, the ultraviolet disinfecting lamp group is installed horizontally and horizontally along the inner wall of the inner cavity, using LED ultraviolet lamp posts or lamp strips or lamp bead strips, and the length is not shorter than the water inlet pipe or overpass. The length of the flow pipe or outlet pipe.

Further, the exterior of the ultraviolet disinfecting lamp group is evenly coated with a reflective film, and the reflective film is made of a film material with a deep ultraviolet reflection function.

Further, the outside of the disinfection pipeline is uniformly coated with an anti-reflection film, and the anti-reflection film is made of a film material mixed with magnesium oxide and magnesium fluoride.

Further, the water inlet pipe and the water outlet pipe respectively pass through the shell and communicate with connecting conduits via pipe joints, the pipe joints are embedded in the shell, and the connecting conduits communicate with water delivery pipes or drainage pipes , and the connecting conduit connected to the water inlet pipeline is equipped with a valve for controlling the flow rate of water delivery.

Further, it also includes an observation window for directly viewing the disinfecting pipeline, the observation window is centrally set on the waist or top of the casing, and is horizontally or vertically aligned with the three groups;

The observation window includes a transparent glass plate fixedly embedded in the shell, and a blackout curtain plate mounted on the outer side of the transparent glass plate by sliding fit.

Further, it also includes a circuit control unit installed on the housing, and the circuit control unit includes:

The water flow detection module selects a water flow sensor or a water leakage detector to monitor whether the water flow in the disinfecting pipeline leaks;

The light detection module is selected from a photoresistor, a photodiode or an illuminance meter, and is used to monitor the irradiation state of the ultraviolet disinfecting lamp group.

Further, the circuit control unit also includes a control circuit, a driving circuit, a power switch and a leakage protector, the control circuit and the driving circuit are used to automatically control the opening or closing of the power switch, and the leakage protector is used In the event of a leakage fault, timely power-off protection.

The beneficial effects of the utility model are reflected in:

In the utility model, the disinfection pipeline adopts an S-shaped elbow structure. Under the irradiation of the ultraviolet disinfection lamp group, the first ultraviolet disinfection is completed when the unsterilized water flow enters the water inlet pipeline, and flows through the middle overflow pipeline. Complete the second ultraviolet sterilization at the same time, complete the third ultraviolet sterilization when finally flowing through the water outlet pipe, discharge the water flow that has been sterilized, prolong the time of disinfection and sterilization, and improve the efficiency of disinfection and sterilization.

In the utility model, the water inlet pipe and the water outlet pipe are respectively arranged on the horizontal line where the two focal points of the ellipse in the inner cavity are located, and are subjected to one group and two groups of focused irradiation respectively, and the flow-through pipe is arranged on the ellipse in the inner cavity. The horizontal line where the center point is located receives three groups of direct irradiation, which improves the effect of disinfection and sterilization with targeted killing methods.

Description of drawings

Fig. 1 is a front view of an embodiment of the utility model.

Fig. 2 is a sectional view of the front structure of an embodiment of the utility model.

Fig. 3 is a cross-sectional view of the side structure when the ellipse of the cross-section of the inner cavity of an embodiment of the present invention is vertically long.

Fig. 4 is a cross-sectional view of the side structure of another embodiment of the utility model when the ellipse in the cross-section of the inner cavity is vertically long.

Fig. 5 is a cross-sectional view of the side structure of another embodiment of the utility model when the ellipse of the cross-section of the inner cavity is flat.

Fig. 6 is a schematic diagram of pulling up the shading curtain of the observation window according to an embodiment of the present invention.

The marks of each component in the accompanying drawings are: 1. shell; 101. inner cavity; 2. killing pipe; 201. water inlet pipe; 202. flow pipe; 203. water outlet pipe; 3. pipe joint; Conduit; 5. Valve; 6. Ultraviolet killing lamp group; 601. One group; 602. Two groups; 603. Three groups; 7. Observation window; 701. Transparent glass plate; 702. Blackout curtain; 8. Circuit control unit.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example. In the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model. The technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. Not within the scope of protection required by the utility model. It should be noted that the electrical components or components involved in this application are all standard parts or modified parts that can be obtained through purchase channels in the prior art.

See Figures 1-6.

The utility model provides an over-flow ultraviolet disinfection and sterilization device, which includes a housing 1, a disinfection pipeline 2 and an ultraviolet disinfection lamp group 6;

The interior of the housing 1 is provided with an inner cavity 101 in the shape of an elliptical column;

The killing pipeline 2 has an S-shaped elbow structure, is centrally installed in the inner cavity body 101, and is arranged along the long axis of the ellipse of the inner cavity body 101, and the killing pipeline 2 includes interconnected inlet and outlet The water pipe 201, the flow pipe 202 and the water outlet pipe 203, the water inlet pipe 201 and the water outlet pipe 203 are respectively located on the horizontal line where the two foci of the ellipse in the inner cavity 101 are located, the flow pipe 202 is located on the horizontal line where the center point of the ellipse in the inner cavity 101 is located;

The ultraviolet killing lamp group 6 includes one group 601, two groups 602 and three groups 603 installed on the inner wall of the inner cavity 101, and the one group 601 and the second group 602 are symmetrically arranged in the inner cavity respectively. 101 on both sides, and each has two ultraviolet lamps distributed at intervals, which are respectively focused and irradiated on the water inlet pipe 201 and the water outlet pipe 203. 202.

In the utility model, the disinfection pipeline adopts an S-shaped elbow structure. Under the irradiation of the ultraviolet disinfection lamp group, the first ultraviolet disinfection is completed when the unsterilized water flow enters the water inlet pipeline, and flows through the middle overflow pipeline. Complete the second ultraviolet sterilization at the same time, complete the third ultraviolet sterilization when finally flowing through the water outlet pipe, discharge the water flow that has been sterilized, prolong the time of disinfection and sterilization, and improve the efficiency of disinfection and sterilization.

In the utility model, the water inlet pipe and the water outlet pipe are respectively arranged on the horizontal line where the two focal points of the ellipse in the inner cavity are located, and are subjected to one group and two groups of focused irradiation respectively, and the flow-through pipe is arranged on the ellipse in the inner cavity. The horizontal line where the center point is located receives three groups of direct irradiation, which improves the effect of disinfection and sterilization with targeted killing methods.

In one embodiment, the ellipse of the cross section of the inner cavity body 101 is vertically long, the killing pipes 2 are vertically arranged along the long axis of the ellipse of the inner cavity body 101, the water inlet pipes 201, The water outlet pipes 203 are respectively located on the horizontal line where the upper and lower focuses of the ellipse in the inner cavity 101 are located, and the first group 601 and the second group 602 are respectively symmetrically arranged at the upper and lower ends of the inner cavity 101 to gather and irradiate In the water inlet pipe 201 and the water outlet pipe 203 , the three groups 603 are centrally arranged at the waist of the inner cavity 101 , and irradiate the flow pipe 202 horizontally. Designed in this way, the S-shaped killing pipes 2 are always arranged along the long axis of the ellipse of the inner cavity 101. On the one hand, the water inlet pipe 201 and the water outlet pipe 203 are respectively located at the focal point of the long axis of the ellipse. Let the ultraviolet lamps of the first group 601 and the second group 602 focus on the horizontal line where the focal point of the long axis of the ellipse is located, that is, to ensure that the first group 601 and the second group 602 respectively focus on the incoming water The pipeline 201 and the water outlet pipeline 203, on the other hand, are to allow the flow-through pipeline 202 to be centered on the horizontal line where the center point of the ellipse is located, so that the ultraviolet lamps of the three groups 603 are directly on the horizontal line where the center point of the ellipse is located, that is, Ensure that the three groups 603 directly shine on the overflow pipeline 202, which can not only prolong the disinfection and sterilization time of the water flow in the disinfection pipeline 2, but also improve the disinfection and sterilization effect by adopting a targeted ultraviolet irradiation method, and In the same S-shaped curved tube, the killing pipeline 2 has three killing procedures, which enhances the efficiency of disinfection and sterilization.

In another embodiment, the ellipse of the cross section of the inner cavity 101 is flat, the killing pipes 2 are arranged horizontally along the long axis of the ellipse of the inner cavity 101, the water inlet pipe 201, the water outlet The pipelines 203 are respectively located on the horizontal line where the two left and right foci of the ellipse in the inner cavity 101 are located. The first group 601 and the second group 602 are symmetrically arranged at the left and right ends of the inner cavity 101 respectively, and are respectively concentrated and irradiated on The water inlet pipe 201 , the water outlet pipe 203 , the three groups 603 are centrally arranged at the bottom of the inner cavity 101 , and irradiate the flow pipe 202 vertically. Designed in this way, the S-shaped killing pipes 2 are always arranged along the long axis of the ellipse of the inner cavity 101. On the one hand, the water inlet pipe 201 and the water outlet pipe 203 are respectively located at the focal point of the long axis of the ellipse. Let the ultraviolet lamps of the first group 601 and the second group 602 focus on the horizontal line where the focal point of the long axis of the ellipse is located, that is, to ensure that the first group 601 and the second group 602 respectively focus on the incoming water The pipeline 201 and the water outlet pipeline 203, on the other hand, are to allow the flow-through pipeline 202 to be centered on the horizontal line where the center point of the ellipse is located, so that the ultraviolet lamps of the three groups 603 are directly on the horizontal line where the center point of the ellipse is located, that is, Ensure that the three groups 603 directly shine on the overflow pipeline 202, which can not only prolong the disinfection and sterilization time of the water flow in the disinfection pipeline 2, but also improve the disinfection and sterilization effect by adopting a targeted ultraviolet irradiation method, and In the same S-shaped curved tube, the killing pipeline 2 has three killing procedures, which enhances the efficiency of disinfection and sterilization.

In one embodiment, the ultraviolet disinfecting lamp group 6 is installed horizontally and horizontally along the inner wall of the inner cavity 101, using LED ultraviolet lamp posts or lamp strips or lamp bead strips, and the length is not shorter than the The length of the water inlet pipe 201 or the overflow pipe 202 or the water outlet pipe 203 . Designed in this way, the specific form of the ultraviolet lamps adopted by the ultraviolet disinfecting lamp group 6 is not unique, it can be fitted in rows along the inner wall of the inner cavity body 101, and the length of the ultraviolet lamps should be shorter than that of the disinfecting pipeline. The length of the three pipes in 2 is long to avoid uneven irradiation.

In one embodiment, the exterior of the ultraviolet disinfecting lamp group 6 is evenly coated with a reflective film, and the reflective film is made of a film material with a deep ultraviolet reflection function. Designed in this way, the reflective film can use silver, aluminum and other film materials with deep ultraviolet reflection function, the specific material is not unique, in order to reflect the pipeline shell along the killing pipeline 2 back to the inner cavity 101 The ultraviolet rays emitted by the inner wall or the ultraviolet killing lamp group 6 are reflected back to the pipe casing of the killing pipe 2 to increase the intensity and utilization of ultraviolet rays in the inner cavity 101 .

In one embodiment, the outside of the disinfection pipeline 2 is evenly coated with an anti-reflection film, and the anti-reflection film is made of a film material mixed with magnesium oxide and magnesium fluoride. Designed in this way, the function of the anti-reflection film is to increase the permeability of the ultraviolet radiation on the disinfecting pipeline 2 and ensure the maximum utilization of the energy of the ultraviolet rays in the inner cavity 101 .

In one embodiment, the water inlet pipe 201 and the water outlet pipe 203 respectively pass through the shell 1 and communicate with the connecting conduit 4 through the pipe joint 3, the pipe joint 3 is embedded in the shell 1, the The connecting conduit 4 is connected to a water delivery pipeline or a drainage pipeline, and the connecting conduit 4 connected to the water inlet pipeline 201 is installed with a valve 5 for controlling the flow rate of water delivery. Designed in this way, under the irradiation of the ultraviolet killing lamp group 6, the first ultraviolet killing is completed when the unsterilized water flow enters the water inlet pipe 201, and the first ultraviolet killing is completed when it flows through the middle overflow pipe 202. The second ultraviolet sterilizing, finally completes the third ultraviolet sterilizing when flowing through the outlet pipe 203, and discharges the clean water that has been sterilized.

In one embodiment, the shape of the housing 1 is not unique, and it can be a hollow cylinder such as a rectangular column, a prism, a cylinder, or an elliptical column, and it can be designed according to actual requirements. It is only necessary to ensure that the inner cavity 101 is in the shape of an elliptical column structure.

In one embodiment, it also includes an observation window 7 for directly viewing the sterilizing pipeline 2, the observation window 7 is centered on the waist or top of the casing 1, and is horizontal or vertical to the three groups 603 align straight;

The observation window 7 includes a transparent glass plate 701 fixedly mounted on the housing 1 , and a light-shielding curtain plate 702 slidably mounted on the outer side of the transparent glass plate 701 . Designed in this way, when it is necessary to directly check the killing status in the inner cavity 101 with the naked eye, the internal working state can be directly observed by pulling up the shading curtain 702 and passing through the transparent glass plate 701, and the observation is completed Afterwards, the shading curtain 702 needs to be lowered to cover the transparent glass plate 701, so as to prevent the internal ultraviolet rays from leaking and reduce the killing intensity.

In one embodiment, it also includes a circuit control unit 8 installed on the housing 1, and the circuit control unit 8 includes:

The water flow detection module selects a water flow sensor or a water leakage detector to monitor whether the water flow in the disinfecting pipeline 2 leaks;

The light detection module is selected from a photoresistor, a photodiode or an illuminance meter, and is used to monitor the irradiation state of the ultraviolet disinfecting lamp group 6 .

In one embodiment, the circuit control unit 8 further includes a control circuit, a drive circuit, a power switch and a leakage protector, the control circuit and the drive circuit are used to automatically control the power switch to be turned on or off, so The leakage protector mentioned above is used for timely power-off protection when a leakage fault occurs.

It should be understood that the examples and implementations described herein are for illustration only, and are not intended to limit the utility model, and those skilled in the art can make various modifications or changes based on it, and all within the spirit and principles of the utility model, the Any modification, equivalent replacement, improvement, etc., should be included in the protection scope of the present utility model.

Claims (10)

1. A flow-type ultraviolet disinfection and sterilization device is characterized in that: it comprises a shell (1), a disinfecting pipeline (2) and an ultraviolet disinfecting lamp group (6); The inside of the shell (1) is provided with an inner cavity (101) in the shape of an elliptical column; The killing pipeline (2) has an S-shaped elbow structure, is centrally installed in the inner cavity (101), and is arranged along the elliptical long axis of the inner cavity (101), and the killing pipeline (2) Including a water inlet pipe (201), an overflow pipe (202) and a water outlet pipe (203) communicating with each other, the water inlet pipe (201) and the water outlet pipe (203) are respectively located in the inner cavity The horizontal line where the two foci of the ellipse in (101) are located, and the flow passage (202) is located on the horizontal line where the central point of the ellipse in the inner cavity (101) is located; The ultraviolet killing lamp group (6) includes one group (601), two groups (602) and three groups (603) installed on the inner wall of the inner cavity (101), the one group (601), The two groups (602) are arranged symmetrically on both sides of the inner cavity (101), respectively, and each has two ultraviolet lamps distributed at intervals, which focus and irradiate the water inlet pipe (201) and the water outlet pipe (203) respectively. ), the three groups (603) have an ultraviolet lamp correspondingly irradiated on the overflow pipe (202). 2. The over-flow ultraviolet disinfection and sterilization device according to claim 1, characterized in that: the ellipse of the cross section of the inner cavity (101) is vertically long, and the killing pipeline (2) is along the The long axis of the ellipse of the cavity (101) is arranged vertically, and the water inlet pipe (201) and the water outlet pipe (203) are respectively located on the horizontal line where the upper and lower foci of the ellipse in the inner cavity (101) are located. , the one group (601) and the two groups (602) are arranged symmetrically at the upper and lower ends of the inner cavity (101) respectively, and gather and irradiate the water inlet pipe (201) and the water outlet pipe (203) respectively, so The three groups (603) are arranged centrally at the waist of the inner cavity (101), and irradiate horizontally on the flow passage (202). 3. The over-flow ultraviolet disinfection and sterilization device according to claim 1, characterized in that: the ellipse of the cross section of the inner cavity body (101) is flat, and the killing pipeline (2) is along the inner cavity The long axis of the ellipse of the body (101) is arranged horizontally, and the water inlet pipe (201) and the water outlet pipe (203) are respectively located on the horizontal line where the left and right foci of the ellipse in the inner cavity (101) are located. The first group (601) and the second group (602) are respectively arranged symmetrically at the left and right ends of the inner cavity (101), and are respectively concentrated and irradiated on the water inlet pipe (201) and the water outlet pipe (203). The group (603) is centrally arranged at the bottom of the inner cavity (101), and irradiates vertically on the flow passage (202). 4. The over-flow ultraviolet disinfection and sterilization device according to claim 1, characterized in that: the ultraviolet killing lamp group (6) is installed horizontally and horizontally along the inner wall of the inner cavity (101), using The LED ultraviolet lamp post or lamp strip or lamp bead strip, and the length is not shorter than the length of the water inlet pipe (201) or the overflow pipe (202) or the water outlet pipe (203). 5. The over-flow type ultraviolet disinfection and sterilization device as claimed in claim 4, characterized in that: the outside of the ultraviolet disinfecting lamp group (6) is evenly coated with a reflective film, and the reflective film adopts a deep ultraviolet reflection function membrane material. 6. The over-flow ultraviolet disinfection and sterilization device as claimed in claim 1, characterized in that: the outside of the disinfecting pipeline (2) is evenly coated with an anti-reflection film, and the anti-reflection film adopts magnesium oxide and fluoride Membrane material mixed with magnesium. 7. The over-flow ultraviolet disinfection and sterilization device according to claim 1, characterized in that: the water inlet pipe (201) and the water outlet pipe (203) respectively pass through the shell (1) and pass through the pipe joint (3) ) is connected to the connecting conduit (4), the pipe joint (3) is embedded on the shell (1), the connecting conduit (4) is connected to the water delivery pipe or the drainage pipe, and is connected to the water inlet A valve (5) for controlling the flow rate of water delivery is installed on the connecting conduit (4) of the pipeline (201). 8. The over-flow ultraviolet disinfection and sterilization device as claimed in claim 1, characterized in that: it also includes an observation window (7) for directly viewing the killing pipeline (2), and the observation window (7) is centered set on the waist or top of the casing (1), and align horizontally or vertically with the three groups (603); The observation window (7) includes a transparent glass plate (701) fixedly embedded in the shell (1), and a light-shielding curtain plate (702) slidingly fitted on the outer side of the transparent glass plate (701). 9. The over-flow type ultraviolet disinfection and sterilization device as claimed in claim 1, characterized in that: it also includes a circuit control unit (8) installed on the housing (1), and the circuit control unit (8) includes: The water flow detection module selects a water flow sensor or a water leakage detector to monitor whether the water flow in the disinfecting pipeline (2) leaks; The light detection module is selected from a photoresistor, a photodiode or an illuminance meter, and is used to monitor the irradiation state of the ultraviolet disinfecting lamp group (6). 10. The over-current type ultraviolet disinfection and sterilization device as claimed in claim 9, characterized in that: the circuit control unit (8) also includes a control circuit, a drive circuit, a power switch and a leakage protector, and the control circuit and the The drive circuit is used to automatically control the power switch to be turned on or off, and the leakage protector is used to perform power-off protection in time when a leakage fault occurs.

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