Outdoor mosquito killer lamp with automatic cleaning function

Abstract

The utility model discloses an outdoor mosquito killer lamp with an automatic cleaning function. The outdoor mosquito killer lamp comprises a supporting frame, a box body is installed at the upper end of the supporting frame, a solar panel is installed above the box body, the two sides of the solar panel are movably connected with the supporting frame or the box body, and an electric shock net and a mosquito trapping lamp tube are installed in the box body. A cleaning device for cleaning the electric shock net and a control circuit board are further arranged in the box body; the electric shock net, the mosquito trapping lamp tube, the cleaning device and the solar panel are electrically connected with the control circuit board; the cleaning device is arranged, the driving motor drives the lead screw to rotate so that the cleaning brush can reciprocate in the direction of the lead screw to clean the electric shock net, mosquito corpses adhering to the electric shock net can be better removed, the cleaning effect is better, the rain control switch is arranged, electric leakage of the mosquito killer in a humid environment can be avoided, and the mosquito killer is more environment-friendly. And automatic power-off in rainy days can be realized, manual power-off is not needed, and the use is more convenient.

Description

Technical Field

[0001] This utility model relates to a mosquito-killing device, and more particularly to an outdoor mosquito-killing lamp. Background Technology

[0002] Currently, most outdoor mosquito killer lamps on the market require manual cleaning of the electric shock net after the lamp is turned off. This necessitates regular cleaning, as mosquito carcasses can clog the net, reducing its effectiveness. Patent document CN212545229U describes a handheld mosquito killer lamp with multiple air blowers facing the electric shock net. These blowers clean the net by blowing air through it. However, this method has limitations. It is less effective at removing stubborn insect carcasses stuck to the net, and it is not efficient at cleaning such stubborn stains. Furthermore, it requires manual shut-off in humid environments such as rainy days, making it inconvenient to use. Summary of the Invention

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides an outdoor mosquito killer lamp with automatic cleaning function.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] An outdoor mosquito killer lamp with automatic cleaning function includes a support frame, a housing mounted on the upper end of the support frame, a solar panel mounted on the top of the housing, and two sides of the solar panel movably connected to the support frame or housing. An electric shock net and a mosquito-attracting lamp tube are installed inside the housing. The housing is characterized by a cleaning device for cleaning the electric shock net and a control circuit board. The electric shock net, mosquito-attracting lamp tube, cleaning device, and solar panel are electrically connected to the control circuit board. A rain control switch is also provided on the side of the housing, electrically connected to the control circuit board. The rain control switch automatically cuts off power based on the humidity level of the air to protect the mosquito killer lamp's circuitry. Protective plates are hinged to the bottom of the front and back of the housing. These plates have a hollow structure and are hinged to the bottom of the housing. A locking device is provided at the top of the protective plate to fix its position and prevent it from rotating around the hinge. A ground-inserting rod is also fixed to the bottom of the support frame.

[0006] As a further improvement of this utility model, the cleaning device includes a cleaning brush, a lead screw, and a drive motor. The lead screw is connected to the middle of the housing. The cleaning brush is disposed on one side of the electric shock mesh and is perpendicular to the plane of the electric shock mesh. A lead screw nut is fixedly connected to the cleaning brush. In the working state, the lead screw nut is fitted onto the lead screw and cooperates with the lead screw to realize the up and down movement of the cleaning brush. The drive motor is fixed to the upper part of the lead screw. During cleaning, the drive motor drives the lead screw to rotate, causing the lead screw nut to slide up and down. The bottom of the lead screw is inserted into an insertion seat. The center of the insertion seat is provided with an insertion groove for inserting the lead screw. The insertion seat is fixedly connected to the bottom inner side of the housing.

[0007] As a further improvement of this utility model, the mosquito-attracting lamp tube is fixedly connected to the box body via a fixing seat. The fixing seat is provided with a lamp tube slot for inserting the mosquito-attracting lamp tube. The fixing seat also extends outward with a connecting piece. The connecting piece is bent inward into the box body to provide a fixing part. The fixing part is provided with a fixing hole for connection. When fixing the mosquito-attracting lamp tube, the fixing part is connected and fixed to a connecting plate. Then, the connecting plate is threadedly connected to the box body for installation and fixation.

[0008] Furthermore, two upward-extending fixing plates are fixedly connected to the top of the side of the housing. An elongated hole is provided on the upper part of the fixing plate, and an adjusting screw is installed in the elongated hole. The adjusting screw clamps the fixing plate to clamp and fix the solar panel.

[0009] Furthermore, the top of the housing is provided with a closed circuit cavity, and the control circuit board is provided inside the circuit cavity. The control circuit board includes a power supply circuit, a main control circuit, a motor control circuit, and a relay control circuit. The main control circuit includes a main control chip U1 and a programming port COM1. Pin 1 of the programming port COM1 is connected to pin 6 of the main control chip U1, pin 2 of the programming port COM1 is connected to pin 9 of the main control chip U1, pin 3 of the programming port COM1 is connected to pin 10 of the main control chip U1, and pin 4 of the programming port COM1 is grounded.

[0010] Further, the motor control circuit includes resistors R3, R4, R5, R6, R7, and R8, and a motor driver chip U2. One end of resistor R3 is connected to pin 4 of the main control chip U1, and the other end is connected to pin 1 of the motor driver chip U2. One end of resistor R4 is connected to pin 3 of the main control chip U1, and the other end is connected to pin 2 of the motor driver chip U2. Resistors R6, R7, and R8 are connected in parallel, with one end grounded and the other end connected to pin 3 of the motor driver chip U2. One end of resistor R5 is connected to pin 2 of the main control chip U1, and the other end is connected to the junction of resistors R6, R7, and R8 with pin 3 of the motor driver chip U2. Pins 7 and 8 of the motor driver chip U2 are connected in parallel as the motor drive reverse signal output terminal B0, and pins 5 and 6 of the motor driver chip U2 are connected in parallel as the motor drive forward signal output terminal F0.

[0011] Furthermore, the power supply circuit includes diode D1A, diode D2, resistor R2, resistor R1, capacitor C1, and capacitor C2. Resistor R2 and resistor R1 are connected in series, with one end connected to pin 4 of the motor drive chip U2 and the other end connected to the positive terminal of diode D2. The negative terminal of diode D2 is connected to pin 6 of the main control chip U1. The junction of resistor R2 and resistor R1 is connected to the power supply voltage. Diode D1A and capacitor C1 are connected in parallel, with one end connected to the junction of diode D2 and resistor R2 and the other end grounded. One end of capacitor C2 is connected to the negative terminal of diode D2, and the other end is connected to the junction of diode D1A and capacitor C1.

[0012] Further, the relay control circuit includes an electromagnetic relay JK1, a fuse F1, a diode D3A, a transistor Q1, resistors R9, R10, and R11. Pin 1 of the electromagnetic relay JK1 is connected to the input terminal IN-L of the live wire; pin 2 of the electromagnetic relay JK1 is unconnected; pin 3 of the electromagnetic relay JK1 is connected to the output terminal OUT-L of the live wire; pin 4 of the electromagnetic relay JK1 is connected to the power supply voltage; and pin 5 of the electromagnetic relay JK1 is connected to the collector (C) of the transistor Q1. The fuse... One end of wire F1 is connected to the input terminal IN-N of the neutral wire, and the other end is connected to the output terminal OUT-N of the neutral wire. The positive terminal of diode D3A is connected to pin 5 of electromagnetic relay JK1, and the negative terminal of diode D3A is connected to pin 4 of electromagnetic relay JK1. Resistors R9, R10, and R11 are connected in series, with one end connected to pin 12 of main control chip U1 and the other end grounded. The base of transistor Q1 is connected to the junction of resistors R9 and R10, and the emitter of transistor Q1 is connected to the junction of resistors R10 and R11.

[0013] The beneficial effects of this utility model are as follows: A cleaning device is provided on one side of the electric shock net. The cleaning device includes a cleaning brush, a lead screw, and a drive motor. The cleaning brush is mounted on the lead screw and driven by the drive motor to clean the electric shock net. A rain control switch is also provided on the housing. This utility model features a cleaning device that, through the drive motor, rotates the lead screw, causing the cleaning brush to reciprocate along the direction of the lead screw to clean the electric shock net. This effectively removes mosquito carcasses stuck to the electric shock net, resulting in better cleaning. The rain control switch also prevents leakage of the mosquito killer in humid environments, making it safer to use. Furthermore, it automatically shuts off power on rainy days, eliminating the need for manual power-off and making it more convenient to use. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a structural schematic diagram of Embodiment 1 of this utility model;

[0016] Figure 2 This is an exploded view of Embodiment 1 of this utility model;

[0017] Figure 3 This is the circuit structure diagram of the power supply circuit;

[0018] Figure 4 This is the circuit structure diagram of the main control circuit;

[0019] Figure 5 This is the circuit structure diagram of the motor control circuit;

[0020] Figure 6 This is a circuit diagram of a relay control circuit;

[0021] Figure 7 This is a schematic diagram of the cleaning device in Embodiment 2 of this utility model. Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0023] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0024] Reference Figures 1 to 7An outdoor mosquito killer lamp with an automatic cleaning function includes a support frame, a housing 1 mounted on the upper end of the support frame, a solar panel 5 mounted on the top of the housing, and the two sides of the solar panel 5 movably connected to the support frame or the housing 1. An electric shock net 3 and a mosquito-attracting lamp tube 2 are installed inside the housing 1. The housing 1 also contains a cleaning device for cleaning the electric shock net 3 and a control circuit board. The electric shock net 3, the mosquito-attracting lamp tube 2, the cleaning device, the solar panel 5, and the control circuit board are electrically connected. A rain control switch is also provided on the side of the housing, and the rain control switch is electrically connected to the control circuit board. The rain control switch can automatically cut off the power according to the humidity level of the air. The circuitry of the mosquito killer lamp is protected. Protective plates are hinged to the bottom of the front and back of the housing. These plates have a hollow structure and are hinged to the bottom of the housing. A locking device is located at the top of the protective plate to fix its position and prevent it from rotating around the hinge. A ground-inserting rod 15 is also fixed to the bottom of the support frame. This ground-inserting rod 15 allows the mosquito killer lamp to be directly inserted into relatively soft ground, making it suitable for outdoor use. Furthermore, fixing the mosquito killer lamp with the ground-inserting rod 15 is more stable than other fixing methods, preventing it from shaking and ensuring it won't tip over even in strong winds.

[0025] Example 1: The cleaning device includes a cleaning brush 6, a lead screw 7, and a drive motor 8. The lead screw 7 is connected to the middle of the housing 1. The cleaning brush 6 is disposed on one side of the electric shock mesh 3 and is perpendicular to the plane of the electric shock mesh 3. A lead screw nut 9 is fixedly connected to the cleaning brush 6. In the working state, the lead screw nut 9 is fitted onto the lead screw 7 and cooperates with the lead screw 7 to realize the up and down movement of the cleaning brush 6, that is, to clean the electric shock mesh 3 in the vertical direction, as shown in the attached figure. Figure 2 As shown, the drive motor 8 is fixed to the upper part of the lead screw 7. During cleaning, the drive motor 8 drives the lead screw 7 to rotate, causing the lead screw nut 9 to slide up and down. The bottom of the lead screw 7 is inserted into an insert seat. The center of the insert seat is provided with an insert groove for inserting the lead screw 7. The insert seat is fixedly connected to the bottom of the inner side of the housing 1. The part of the cleaning brush 6 that contacts the electric shock mesh 3 is made of non-conductive insulating material such as low-pressure polyethylene.

[0026] The mosquito-attracting lamp tube 2 is fixedly connected to the housing 1 via a fixing base 10. The fixing base 10 is provided with a lamp tube slot for inserting the mosquito-attracting lamp tube 2. The fixing base 10 also extends outward with a connecting piece. The connecting piece is bent inward into the housing 1 to provide a fixing part. The fixing part is provided with a fixing hole for connection. When fixing the mosquito-attracting lamp tube 2, the fixing part is connected and fixed to a connecting plate 11. Then, the connecting plate 11 is threadedly connected to the housing 1 for installation and fixation.

[0027] Two upward-extending fixing plates 12 are fixedly connected to the top of the side of the housing 1. An elongated hole 13 is provided on the upper part of the fixing plate 12. An adjusting screw 14 is installed in the elongated hole 13. The adjusting screw 14 clamps the fixing plate 12 to clamp and fix the solar panel 5. The user can adjust the angle of the solar panel 5 according to the direction of sunlight. When adjusting, loosen the adjusting screw 14, rotate the solar panel 5 to a suitable angle, and then tighten the adjusting screw 14 to fix the solar panel 5.

[0028] The top of the housing 1 is provided with a closed circuit cavity, and the control circuit board is provided inside the circuit cavity. The control circuit board includes a power supply circuit, a main control circuit, a motor control circuit, and a relay control circuit. The main control circuit includes a main control chip U1 and a programming port COM1. Pin 1 of the programming port COM1 is connected to pin 6 of the main control chip U1, pin 2 of the programming port COM1 is connected to pin 9 of the main control chip U1, pin 3 of the programming port COM1 is connected to pin 10 of the main control chip U1, and pin 4 of the programming port COM1 is grounded.

[0029] The motor control circuit includes resistors R3, R4, R5, R6, R7, and R8, and a motor driver chip U2. One end of resistor R3 is connected to pin 4 of the main control chip U1, and the other end is connected to pin 1 of the motor driver chip U2. One end of resistor R4 is connected to pin 3 of the main control chip U1, and the other end is connected to pin 2 of the motor driver chip U2. Resistors R6, R7, and R8 are connected in parallel, with one end grounded and the other end connected to pin 3 of the motor driver chip U2. One end of resistor R5 is connected to pin 2 of the main control chip U1, and the other end is connected to the junction of resistors R6, R7, and R8 with pin 3 of motor drive chip U2. Pins 7 and 8 of motor drive chip U2 are connected in parallel as the motor drive backward signal output terminal B0, and pins 5 and 6 of motor drive chip U2 are connected in parallel as the motor drive forward signal output terminal F0. The motor control circuit can control the forward and reverse rotation of the drive motor, thereby causing the cleaning brush 6 to reciprocate up and down along the direction of the lead screw 7, thus cleaning the electric shock net 3.

[0030] The power supply circuit includes diode D1A, diode D2, resistor R2, resistor R1, capacitor C1, and capacitor C2. Resistor R2 and resistor R1 are connected in series, with one end connected to pin 4 of the motor drive chip U2 and the other end connected to the positive terminal of diode D2. The negative terminal of diode D2 is connected to pin 6 of the main control chip U1. The junction of resistor R2 and resistor R1 is connected to the power supply voltage. Diode D1A and capacitor C1 are connected in parallel, with one end connected to the junction of diode D2 and resistor R2 and the other end grounded. One end of capacitor C2 is connected to the negative terminal of diode D2, and the other end is connected to the junction of diode D1A and capacitor C1.

[0031] The relay control circuit includes an electromagnetic relay JK1, a fuse F1, a diode D3A, a transistor Q1, resistors R9, R10, and R11. Pin 1 of the electromagnetic relay JK1 is connected to the input terminal IN-L of the live wire; pin 2 of the electromagnetic relay JK1 is unconnected; pin 3 of the electromagnetic relay JK1 is connected to the output terminal OUT-L of the live wire; pin 4 of the electromagnetic relay JK1 is connected to the power supply voltage; and pin 5 of the electromagnetic relay JK1 is connected to the collector (C) of the transistor Q1. One end of the fuse F1 is connected to the input terminal IN-N of the neutral wire, and the other end is connected to the output terminal OUT-N of the neutral wire. The anode of the diode D3A is connected to pin 5 of the electromagnetic relay JK1, and the cathode of the diode D3A is connected to pin 4 of the electromagnetic relay JK1. Resistors R9, R10, and R11 are connected in series... One end is connected to pin 12 of the main control chip U1, and the other end is grounded. The base of the transistor Q1 is connected to the junction of resistors R9 and R10, and the emitter of the transistor Q1 is connected to the junction of resistors R10 and R11. The relay control circuit can control the electromagnetic relay JK1 to keep the mosquito killer lamp in normal working condition when the mosquito killer lamp is in a relatively dry environment, and to keep the mosquito killer lamp in a closed state when the mosquito killer lamp is in a humid environment, such as on a rainy day, to avoid electric shock accidents caused by the electric shock net conducting electricity in a humid environment, making the mosquito killer lamp safer to use. The automatic control of the mosquito killer lamp is achieved through the electromagnetic relay JK1, making it more convenient to use. This utility model is also equipped with a battery, which can generate electricity through the solar panel 5 and store it in the battery. The stored electricity is used for operation, and it can also be used with conventional household mains power, expanding the application scenarios.

[0032] Example 2: When cleaning the electric shock mesh 3, the lead screw nut 9 is fitted onto the lead screw 7 and cooperates with the lead screw 7 to realize the left and right movement of the cleaning brush 6, that is, to clean the electric shock mesh 3 in the horizontal direction. This implementation method is shown in the attached figure. Figure 7 As shown in the figure, the cleaning brush 6 and the lead screw 7 of the cleaning device are both arranged horizontally, as shown in the attached figure. Figure 7As shown, users can also use either of the two different cleaning methods to clean the electric shock net 3 according to their usage. This way, cleaning the electric shock net 3 from different directions will result in a better cleaning effect.

[0033] In this invention, the term "multiple" refers to two or more items unless otherwise expressly defined. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] It should be noted that when a component is referred to as being "assembled on," "mounted on," "fixed to," or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0035] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An outdoor mosquito-killing lamp with automatic cleaning function, comprising a support frame, a housing (1) mounted on the upper end of the support frame, a solar panel (5) mounted on the top of the housing, the two sides of the solar panel (5) being movably connected to the support frame or the housing (1), and an electric shock net (3) and a mosquito-attracting lamp tube (2) installed inside the housing (1); characterized in that The box (1) is also equipped with a cleaning device and a control circuit board for cleaning the electric shock net (3); the electric shock net (3), the mosquito-attracting lamp (2), the cleaning device, the solar panel (5) are electrically connected to the control circuit board.

2. The outdoor mosquito killer lamp according to claim 1, characterized in that... A rain control switch is provided on the side of the housing (1), and the rain control switch is electrically connected to the control circuit board.

3. The outdoor mosquito killer lamp according to claim 1, characterized in that... The cleaning device includes a cleaning brush (6), a lead screw (7), and a drive motor (8). The lead screw (7) is connected to the middle of the housing (1). The cleaning brush (6) is set on one side of the electric shock net (3) and is perpendicular to the plane of the electric shock net (3). A lead screw nut (9) is fixedly connected to the cleaning brush (6). In the working state, the lead screw nut (9) is fitted on the lead screw (7) and cooperates with the lead screw (7) to realize the up and down movement of the cleaning brush (6). The drive motor (8) is fixed to the upper part of the lead screw (7). When cleaning, the drive motor (8) drives the lead screw (7) to rotate, which drives the lead screw nut (9) to slide up and down. The bottom of the lead screw (7) is inserted into an insertion seat. The center of the insertion seat is provided with an insertion groove for inserting the lead screw (7). The insertion seat is fixedly connected to the bottom of the inner side of the housing (1).

4. The outdoor mosquito killer lamp according to claim 1, characterized in that... The mosquito-attracting lamp tube (2) is fixedly connected to the box body (1) through a fixing seat (10). The fixing seat (10) is provided with a lamp tube slot for inserting the mosquito-attracting lamp tube (2). The fixing seat (10) also extends outward with a connecting piece. The connecting piece is bent into the box body (1) and a fixing part is provided. The fixing part is provided with a fixing hole for connection. When fixing the mosquito-attracting lamp tube (2), the fixing part is connected and fixed to a connecting plate (11). Then, the connecting plate (11) is threadedly connected to the box body (1) for installation and fixation.

5. The outdoor mosquito killer lamp according to claim 1, characterized in that... Two upward-extending fixing plates (12) are fixedly connected to the top of the side of the box (1). An elongated hole (13) is provided on the upper part of the fixing plate (12). An adjusting screw (14) is installed in the elongated hole (13). The adjusting screw (14) clamps the fixing plate (12) to clamp and fix the solar panel (5).

6. The outdoor mosquito killer lamp according to claim 1, characterized in that... The top of the housing (1) is provided with a closed circuit cavity, and the control circuit board is provided in the circuit cavity. The control circuit board includes a power supply circuit, a main control circuit, a motor control circuit and a relay control circuit. The main control circuit includes a main control chip U1 and a programming port COM1. Pin 1 of the programming port COM1 is connected to pin 6 of the main control chip U1, pin 2 of the programming port COM1 is connected to pin 9 of the main control chip U1, pin 3 of the programming port COM1 is connected to pin 10 of the main control chip U1, and pin 4 of the programming port COM1 is grounded.

7. The outdoor mosquito killer lamp according to claim 6, characterized in that... The motor control circuit includes resistors R3, R4, R5, R6, R7, and R8, and a motor driver chip U2. One end of resistor R3 is connected to pin 4 of the main control chip U1, and the other end is connected to pin 1 of the motor driver chip U2. One end of resistor R4 is connected to pin 3 of the main control chip U1, and the other end is connected to pin 2 of the motor driver chip U2. Resistors R6, R7, and R8 are connected in parallel, with one end grounded and the other end connected to pin 3 of the motor driver chip U2. One end of resistor R5 is connected to pin 2 of the main control chip U1, and the other end is connected to the junction of resistors R6, R7, and R8 with pin 3 of the motor driver chip U2. Pins 7 and 8 of the motor driver chip U2 are connected in parallel as the motor drive reverse signal output terminal B0, and pins 5 and 6 of the motor driver chip U2 are connected in parallel as the motor drive forward signal output terminal F0.

8. The outdoor mosquito killer lamp according to claim 7, characterized in that... The power supply circuit includes diode D1A, diode D2, resistor R2, resistor R1, capacitor C1, and capacitor C2. Resistor R2 and resistor R1 are connected in series, with one end connected to pin 4 of the motor drive chip U2 and the other end connected to the positive terminal of diode D2. The negative terminal of diode D2 is connected to pin 6 of the main control chip U1. The junction of resistor R2 and resistor R1 is connected to the power supply voltage. Diode D1A and capacitor C1 are connected in parallel, with one end connected to the junction of diode D2 and resistor R2 and the other end grounded. One end of capacitor C2 is connected to the negative terminal of diode D2, and the other end is connected to the junction of diode D1A and capacitor C1.

9. The outdoor mosquito killer lamp according to claim 8, characterized in that... The relay control circuit includes an electromagnetic relay JK1, a fuse F1, a diode D3A, a transistor Q1, resistors R9, R10, and R11. Pin 1 of the electromagnetic relay JK1 is connected to the input terminal IN-L of the live wire; pin 2 of the electromagnetic relay JK1 is unconnected; pin 3 of the electromagnetic relay JK1 is connected to the output terminal OUT-L of the live wire; pin 4 of the electromagnetic relay JK1 is connected to the power supply voltage; and pin 5 of the electromagnetic relay JK1 is connected to the collector (C) of the transistor Q1. The fuse... One end of wire F1 is connected to the input terminal IN-N of the neutral wire, and the other end is connected to the output terminal OUT-N of the neutral wire. The positive terminal of diode D3A is connected to pin 5 of electromagnetic relay JK1, and the negative terminal of diode D3A is connected to pin 4 of electromagnetic relay JK1. Resistors R9, R10, and R11 are connected in series, and one end is connected to pin 12 of main control chip U1. The base of transistor Q1 is connected to the junction of resistors R9 and R10, and the emitter of transistor Q1 is connected to the junction of resistors R10 and R11.

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