Intelligent electric leakage early warning instrument
By integrating a lamp, buzzer, warning light, and display screen into a handheld leakage current detector, effective leakage current detection and real-time information transmission are achieved in dark environments. This solves the problems of insufficient light and poor communication in existing equipment, and improves the efficiency and safety of emergency rescue.
Patent Information
- Application Number
- CN202511936109.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-22
- Publication Date
- 2026-02-17
AI Technical Summary
Existing handheld leakage current detectors are inconvenient to use in dark or noisy environments, and poor communication between rescuers makes it difficult to deploy rescue strategies.
An intelligent leakage current early warning device was designed, equipped with a lamp head to provide lighting, and features a buzzer, warning light, and display screen. It can detect leakage current in real time and send information to a mobile terminal via wireless communication, supporting the command center to uniformly deploy rescue strategies and display warning information on the mobile terminal.
In emergency situations, it reduces the equipment burden on rescue personnel, improves rescue efficiency and safety, and ensures that the command center has real-time understanding of the situation on the ground and can make flexible adjustments.
Smart Images

Figure CN121541098A_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of environmental leakage current detection technology, and in particular to an intelligent leakage current early warning device. Background Technology
[0002] Leakage current refers to the leakage of current caused by circuit insulation damage or other reasons. When the casing of an appliance and the live wire of the mains are connected for some reason, there is a potential difference between them and the ground, which will produce leakage current. The traditional method of detecting leakage current is to touch the live body with a test pen. If the neon bulb lights up briefly and then goes out immediately, it proves that the live body is carrying static electricity. If it stays lit, it is definitely a leakage current. However, with the development of the times, the use of test pen detection has gradually decreased, and handheld leakage current detectors have become more widely used. They can be widely used in industrial production, fire rescue, and daily household applications.
[0003] Existing handheld leakage current detectors lack illumination capabilities, requiring rescuers to carry additional lighting equipment in dark or dimly lit environments, adding to their burden. Furthermore, in noisy environments or when failing to notice alarm signals from fellow rescuers' detectors, opportunities for retreat or rescue may be missed. In large rescue sites or complex rescue detection environments, communication difficulties exist among rescuers, making it difficult for the command center to accurately grasp the situation and coordinate rescue efforts and adjust strategies as needed. Summary of the Invention
[0004] In view of the above, this disclosure provides an intelligent leakage current early warning device, including a tube body, a front end cover and a rear end cover located at both ends of the tube body, a battery, a main board and a lamp head installed inside the tube body, the main board being electrically connected to the battery, the lamp head being electrically connected to the main board, the battery being installed near the rear end cover, the lamp head being located at the front end cover, the main board being located between the battery and the lamp head, and the main board being provided with a detection chip, a buzzer, a display screen and an alarm light;
[0005] The detection chip detects whether there is a leakage current in the environment. When a leakage current is detected, the motherboard controls the buzzer to sound, the warning light to flash, and the leakage current information to be displayed on the screen. The motherboard is equipped with a communication chip, which sends the leakage current information to the mobile terminal; and / or, the communication chip receives the warning information sent by the mobile terminal, and the motherboard controls the buzzer to sound, the warning light to flash, and the warning information to be displayed on the screen.
[0006] In some embodiments, the motherboard receives modification information sent by the mobile terminal, and the modified information is displayed on the screen.
[0007] In some embodiments, a handle is provided on the tube near the rear end cover in the direction from the rear end cover to the front end cover, a button is provided at the front end of the handle, and a display screen is provided at the front end of the button.
[0008] In some embodiments, the distance between the center of the button and the foremost point of the handle is greater than or equal to 0 and less than or equal to 8 mm, and the width and length of the button are both greater than or equal to 10 mm.
[0009] In some embodiments, on the other side of the tube corresponding to the button, there is an identification protrusion between the button and the handle.
[0010] In some embodiments, the ratio of the distance from the center of the display screen to the foremost point of the tube to the length of the tube ranges from 0.36 to 0.3895.
[0011] In some embodiments, the tube length ranges from 475 to 485 mm, and the distance from the center of the display screen to the foremost point of the tube ranges from 175 to 185 mm.
[0012] In some embodiments, the length of the intelligent leakage current warning device ranges from 480 to 520 mm.
[0013] In some embodiments, the lamp head includes an aluminum substrate, a main board limiting plug, and a reflector. The main board limiting plug is fitted onto the main board, the aluminum substrate is vertically fixed on the main board, and the main board limiting plug is in direct contact with the aluminum substrate. The reflector is positioned corresponding to the position of the LED on the aluminum substrate.
[0014] In some embodiments, the battery is located inside the tube corresponding to the handle, a warning light is installed on the display screen near the handle, a sound hole is provided on the tube on the opposite side of the display screen, and a buzzer is installed on the main board corresponding to the sound hole.
[0015] The intelligent leakage current warning device involved in this application features a unique design in which a lamp holder is cleverly installed on the front cover. This design not only enables the device to operate efficiently when detecting leakage risks in the environment, but also provides an additional function: normal lighting. This dual-function design greatly facilitates practical use, especially in emergency rescue situations, eliminating the need for rescuers to carry additional specialized lighting equipment, thus reducing equipment burden and improving operational efficiency. Furthermore, when the intelligent leakage current warning device detects leakage information, it can quickly transmit this crucial information wirelessly to a mobile terminal. This function allows the command center to receive leakage alarms in real time, enabling unified deployment and flexible adjustment of rescue strategies based on the actual situation, ensuring the targeted and effective nature of rescue operations. In emergency situations, the command center can send warning messages to all intelligent leakage current warning devices deployed on-site via mobile terminal. Upon receiving these warning messages, the intelligent leakage current warning device immediately activates its built-in buzzer, emitting a loud alarm sound, while the warning light also begins to flash, quickly attracting the attention of on-site users through a dual warning of sound and light. Furthermore, the device's display screen clearly shows warning messages, providing users with clear instructions for the next steps, or prompting timely evacuation when necessary to ensure personnel safety. This series of intelligent early warning and response mechanisms greatly improves the efficiency and safety of emergency response. Attached Figure Description
[0016] Figure 1a Exploded structural diagrams of intelligent leakage current warning devices provided as examples;
[0017] Figure 1b Exploded structural diagrams of intelligent leakage current warning devices provided as examples;
[0018] Figure 2 A schematic diagram of the reverse side of a smart leakage current warning device is provided for some examples;
[0019] Figure 3 A front view diagram of a smart leakage current warning device provided for some examples. Detailed Implementation
[0020] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.
[0021] In the accompanying drawings, for clarity, the dimensions of layers, areas, and elements, as well as their relative dimensions, may be exaggerated. The same reference numerals denote the same elements throughout. It should be understood that when an element or layer is referred to as "on," "adjacent to," "connected to," or "coupled to" other elements or layers, it may be directly on, adjacent to, connected to, or coupled to other elements or layers, or there may be intervening elements or layers. Conversely, when an element is referred to as "directly on," "directly adjacent to," "directly connected to," or "directly coupled to" other elements or layers, there are no intervening elements or layers.
[0022] To fully understand this disclosure, detailed steps and structures will be presented in the following description to illustrate the technical solutions of this disclosure. Preferred embodiments of this disclosure are described in detail below; however, other embodiments may also be implemented in addition to these detailed descriptions.
[0023] Figure 1a Exploded structural diagrams of intelligent leakage current warning devices provided as examples; Figure 1b Exploded structural diagrams of intelligent leakage current warning devices provided as examples. (Reference) Figure 1a and Figure 1b The intelligent leakage current early warning device includes a tube body 1, a front cover 2 and a rear cover 3 located at both ends of the tube body, a battery 13, a main board 14 and a lamp head 25 installed inside the tube body, the main board 14 being electrically connected to the battery 13, the lamp head 25 being electrically connected to the main board 14, the battery 13 being installed near the rear cover 3, the lamp head 25 being located at the front cover 2, the main board 14 being located between the battery 13 and the lamp head 25, and the main board 14 being equipped with a detection chip 14a, a buzzer 26, an alarm light 18 and a display screen 16.
[0024] The detection chip 14a is used to detect whether there is leakage in the environment. When there is leakage in the environment, the motherboard 14 controls the buzzer 26 to sound, the warning light 18 to flash, and the leakage information to be displayed on the display screen 16. The motherboard 14 is equipped with a communication chip 14b, which sends leakage information to the mobile terminal. The warning light 18 may include two LED beads.
[0025] And / or, the communication chip 14b receives the warning information sent by the mobile terminal, the motherboard 14 controls the buzzer 14b to sound, the warning light 18 to flash, and the warning information to be displayed on the display screen 16.
[0026] And / or, the motherboard 14 receives modification information sent by the mobile terminal, and the modified information is displayed on the display screen 16. In some specific embodiments, the detection chip 14a is installed in the middle of the tube body 1, adjacent to the display screen 16 and the buzzer 26, which makes the collaborative work between the functional modules more efficient, optimizes space utilization, facilitates the wiring deployment on the motherboard 1, and improves the overall stability and reliability of the intelligent leakage current warning device. This centralized layout not only simplifies circuit connections but also reduces the difficulty of later maintenance, further improving the overall performance of the device.
[0027] In this embodiment, the mobile terminal can be a computer or mobile phone, such as a computer in a command center or a mobile phone belonging to a command leader. An app or software can be installed on the mobile terminal to control multiple smart leakage current detectors. Data from the multiple smart leakage current detectors (e.g., leakage current information, user information, current operating mode, etc.) can be uploaded to the mobile terminal. The mobile terminal can visually display the status data of each smart leakage current detector. Modifications to each smart leakage current detector can also be made through the app or software on the mobile terminal. Modifications include operations, editing, and issuing commands. Modifications may include: modifying and uploading the startup screen and user information, modifying the detection mode, activating the lighting mode, sending warning messages, and sending electronic manuals and operation videos to the detectors. User information may include the user's organization, name, etc. The startup screen can be text or animation.
[0028] In some implementations, the communication chip 14b can also send location information to the mobile terminal. In this case, the motherboard 14 is equipped with a positioning module, such as a GPS / BeiDou navigation chip.
[0029] In some embodiments, the communication chip can be a Bluetooth chip. Bluetooth technology ensures the reliability of real-time monitoring and remote control functions, enabling the rapid transmission of critical information in emergency situations, thereby effectively shortening response time, improving rescue efficiency, and providing comprehensive safety protection for personnel. When Bluetooth communication distance is limited, 2.4G / 4G / 5G wireless communication chips can be used.
[0030] In some embodiments, the detection chip 14a includes a current signal detection module and a current signal processing module. The current signal detection module is used to detect current or voltage signals in the environment and can be arranged on multiple copper plates or multiple copper wires in the motherboard 14. Utilizing a highly sensitive, long-distance detection sensor chip, it is possible to detect AC leakage in the 20Hz-100Hz range in the environment. The intelligent leakage current warning device can trigger corresponding audible and visual alarms based on detected differences in electrical strength. Specifically, different electrical strengths will cause changes in the strength and frequency of the alarm signal; where the electrical strength is higher, the buzzer's sound frequency will be faster, and the alarm light's flashing frequency will also be faster. Leakage information can include whether there is leakage and leakage strength information, as well as leakage location information, such as latitude and longitude information, or the distance and orientation of the leakage location from the current intelligent leakage current warning device, and leakage strength information. The leakage strength can be divided into high, medium, and low levels based on the electrical strength. In some implementations, the intelligent leakage current warning device can be set to three detection modes: high, medium, and low.
[0031] In this embodiment, the warning message can be a text warning, such as "Danger here, please evacuate immediately," "Explosion present, please take cover," "Strong acid present, please take precautions," etc., or other non-warning messages. The mobile terminal can edit the content of the warning message as needed.
[0032] The cloud-based electric current alarm device in this embodiment primarily detects low-voltage and high-voltage leakage in operational and rescue environments, and is suitable for harsh environments such as public security, military, fire fighting, railways, power, steel, oil fields, and water conservancy. When the intelligent leakage current warning device detects leakage information, it can quickly transmit this crucial information wirelessly to a mobile terminal. This function allows the command center to receive leakage current alarms in real time, enabling unified deployment and flexible adjustment of rescue strategies based on the actual situation, ensuring the targetedness and effectiveness of rescue operations. In emergency situations, the command center can send warning information to all intelligent leakage current warning devices deployed on-site via mobile terminals. Upon receiving these warning messages, the intelligent leakage current warning devices will immediately activate their built-in buzzers, emitting a loud alarm sound, while the warning lights will also begin flashing, quickly attracting the attention of on-site users through a dual warning of sound and light. Furthermore, the device's display screen will clearly show the warning information, providing users with clear instructions for the next steps, or prompting timely evacuation when necessary to ensure personnel safety. This series of intelligent warning and response mechanisms greatly improves the efficiency and safety of emergency response.
[0033] refer to Figure 1a , Figure 1b and Figure 2From the rear cover 3 towards the front cover 2, a handle 1a is located on the tube body 1 near the rear cover 3. A button 6 is located at the front end of the handle 1a, and a display screen 16 is located at the front end of the button 6. The display screen 16 is embedded in the screen cover 4, supported by a screen bracket 17. The screen bracket 17 is fixed to the screen substrate with screws 22. The screen substrate is electrically connected to the motherboard 14, and the screen motherboard is fixed to the motherboard 14. The screen cover 4 is mounted on the tube body 1 with screws 22. The tube body 1 has a groove for mounting the screen cover 4, and a sealing ring 8 is provided between the screen cover 4 and the mounting groove.
[0034] Continue to refer to Figure 1a The lamp head 25 includes an aluminum substrate 23, a main board limiting plug 7, and a reflector cup 5. After the main board limiting plug 7 is fitted onto the main board 14, the aluminum substrate 23 is vertically fixed on the main board 14, and the main board limiting plug 7 is in direct contact with the aluminum substrate 23. The reflector cup 5 is positioned corresponding to the position of the LED on the aluminum substrate 23. Foam 12 is also provided between the reflector cup 5 and the inner wall of the front cover 2. An O-ring 19 seals the tube body 1 and the front cover 2. A reflective sticker 11 is provided on the outer wall of the tube body 1 near the front cover 2, and a reflective sticker 10 is provided on the front surface of the front cover 2. The reflective stickers 10 and 11 make the intelligent leakage current warning device more conspicuous in daylight, darkness, or dimly lit environments, thus providing a continuous warning effect.
[0035] In some embodiments, the current signal detection module in the detection chip 14a can also be set on the aluminum substrate 23 on the lamp holder 25, or on the main board 1 near the front cover 2. Such a setting allows the leakage detection signal to be captured first when it is located at the front end of the intelligent leakage warning device, so as to generate detection results faster. At the same time, the user can be relatively farther away from the leakage point, which can ensure the safety of the personnel to a certain extent.
[0036] refer to Figure 1b The battery 13 is located inside the tube body 1 corresponding to the handle 1a. A warning light 18 is installed on the display screen 16 near the handle 1a. A sound outlet 1c is located on the other side of the tube body 1 opposite the display screen 16, and a buzzer 26 is installed on the main board 14 corresponding to the sound outlet 1c. The battery 13 is a rechargeable battery, for example, it can be charged using a Type-C method. Furthermore, the tube body 1 also includes a charging board 24, a charging socket 15, and a charging plug 9. The charging board 24 is electrically connected perpendicularly to the other end of the main board 2. The charging socket 15 is electrically connected to the battery 13. The rear cover 3 is sealed to the tube body 1 using a sealing ring 19. A button 6 is fitted onto a push-button switch, and the push-button switch is electrically connected to the main board 14.
[0037] The working process or button function description of the intelligent leakage current early warning device of this application is as follows:
[0038] (1) Equipment self-test upon startup: Press and hold the button for 3 seconds to turn on the equipment or activate the leakage detection function (low setting). The equipment will then execute the self-test program, and the display screen will show "Equipment self-testing in progress". At the same time, two LED beads will flash rapidly in yellow light (the frequency can be 3-5Hz), and the buzzer will sound once per second. If leakage is detected in the environment, the LED beads will start flashing red light at a high frequency (the frequency can be 8-10Hz), and the buzzer will simultaneously emit a sharp alarm sound. The flashing frequency and sound intensity of the LED beads will gradually increase from weak to strong according to the leakage distance and voltage.
[0039] After the self-test is completed and no abnormalities are found, the display screen will switch to the power-on screen, which will last for 2 seconds. It will then automatically transition to the user information interface, which will also remain displayed for 2 seconds. Subsequently, the device will enter the operation interface. In the absence of leakage, the two LED beads will flash green light synchronously and slowly at a frequency of once per second, while the buzzer will stop sounding.
[0040] (2) Detection mode switching: After the device completes the self-test, it will automatically switch to the low-level detection mode; then, a single button operation will switch to the medium-level detection mode, and another single button operation will switch to the high-level detection mode. This process will repeat.
[0041] (3) Lighting Mode: Double-clicking the button turns on the front lighting mode, and double-clicking the button again turns off the lighting mode, and so on. In this operating mode, the leakage current detection function will not be activated.
[0042] (4) Power off the device: In any mode, press and hold the button for 3 seconds to power off the device.
[0043] Combination Figure 1a and Figure 2 As shown, on the other side of the tube body 1 corresponding to button 6, an identification protrusion 1b is designed. This identification protrusion 1b is located at a specific position between button 6 and handle 1. The shape and texture of the identification protrusion 1b are clearly different from the anti-slip grooves and finger positioning grooves on the tube body. Even in extremely dim or completely dark environments, users can clearly perceive the presence of this protrusion simply by touching it with their fingers. This design greatly facilitates users, allowing them to quickly and accurately locate the specific position of button 6 through touch, even in situations where it is impossible to see, thus enabling blind operation and improving the convenience and efficiency of use.
[0044] Furthermore, the handle 1a can be made of soft, grippy silicone. Silicone not only feels comfortable but also effectively prevents slipping, maintaining a stable grip even with sweaty hands. Combined with the carefully designed anti-slip grooves and finger grooves on the handle 1a, these details further enhance the anti-slip effect and allow users to grip and operate more easily and freely when blindly operating, greatly improving the overall user experience. This ensures a stable grip in wet and slippery environments (such as water stains in fire rescue operations or oil stains from petrochemical plants).
[0045] In some embodiments, combined with Figure 3 The distance L2 between the center of button 6 and the foremost point of handle 1a is greater than or equal to 0 and less than or equal to 8 mm. The width and length of button 6 are both equal to 10 mm. This distance setting is particularly convenient when using a handheld intelligent leakage current alarm device. Users can accurately touch button 6 with just a simple press of their thumb. This design greatly facilitates quick positioning during operation, allowing users to quickly adjust the detection mode or turn on the lighting mode with one button even in situations with limited visibility, thereby improving efficiency and safety. Furthermore, the length of button 6 can be set to 13.5 mm and the width to 16.5 mm. This relatively large button size design not only provides a wider touch area but also improves the convenience and accuracy of blind operation. Whether for users with poor eyesight or in low-light environments, this large button design effectively reduces accidental touches and improves operational efficiency, demonstrating significant practicality and user-friendliness in actual use.
[0046] In some specific embodiments, the ratio of the distance L1 between the center point of the display screen 16 and the foremost point of the tube body 1 to the total length L of the tube body is in the range of 0.36 to 0.3895. This ratio is chosen to optimize the display effect and the overall layout of the intelligent leakage current warning device, while also ensuring that the display screen is positioned so that users can easily view the content while operating with one hand. More preferably, the length of the tube body itself is between 475 and 485 mm to ensure the portability and ease of operation of the device. Meanwhile, the distance from the center point of the display screen to the foremost point of the tube body can be in the range of 175 to 185 mm; this design ensures both the visibility of the display screen and the overall balance.
[0047] In this embodiment, the overall length of the intelligent leakage current alarm is set between 480 and 520 mm, and more preferably, its length can be further refined to 495 to 505 mm. This length design makes the overall length of the intelligent leakage current alarm approximately half a meter, which is easy to carry, allows for optimal performance in actual use, and facilitates one-handed operation. When this length is combined with the length of the user's arm, the intelligent leakage current alarm can accurately detect leakage current within a range of approximately 5 meters around the user, thereby providing the user with timely and reliable leakage current warnings and greatly improving the user's safety.
[0048] In some embodiments, the intelligent leakage current alarm not only possesses advanced leakage current detection capabilities but also features battery power monitoring and display functionality. This function can monitor and display the current battery status in real time. Specifically, when the built-in battery voltage of the intelligent leakage current alarm drops below 20% of its rated voltage, a low-voltage alarm mechanism will be automatically triggered, promptly issuing a low battery warning signal to the user through audible and visual alarms or other prompts. If the battery power further decreases to a critically low level, the intelligent leakage current alarm will not function properly upon the next startup, thus ensuring the safety and reliability of the device.
[0049] Furthermore, while sending leakage or location information to the mobile terminal, the intelligent leakage current warning device can also simultaneously transmit multi-dimensional environmental parameter information such as battery voltage, ambient temperature, and atmospheric pressure. This design allows the command center at the mobile terminal to not only receive critical leakage and location information but also to comprehensively grasp the detailed conditions of the device's environment, including battery health, current temperature changes, and atmospheric pressure. Based on this detailed data support, command center personnel can conduct more comprehensive and in-depth analysis, thereby making more thorough and accurate decisions and effectively improving the efficiency and effectiveness of emergency response.
[0050] The intelligent leakage current warning device in this embodiment features a unique design with a lamp holder cleverly integrated into the front cover. This design not only enables the device to operate efficiently when detecting leakage risks in the environment, but also provides an additional function: normal lighting. This dual-function design greatly facilitates practical applications, especially in emergency rescue situations, eliminating the need for rescuers to carry specialized lighting equipment, thus reducing equipment burden and improving operational efficiency. Furthermore, when the intelligent leakage current warning device detects leakage information, it can quickly transmit this crucial information wirelessly to a mobile terminal. This function allows the command center to receive leakage alarms in real time, enabling unified deployment and flexible adjustments to rescue strategies based on the actual situation, ensuring the targeted and effective nature of rescue operations. In emergency situations, the command center can send warning messages to all intelligent leakage current warning devices deployed on-site via mobile terminal. Upon receiving these warning messages, the intelligent leakage current warning device immediately activates its built-in buzzer, emitting a loud alarm sound, while the warning light flashes, quickly attracting the attention of on-site users through a dual warning of sound and light. Furthermore, the device's display screen clearly shows warning messages, providing users with clear instructions for the next steps, or prompting timely evacuation when necessary to ensure personnel safety. This series of intelligent early warning and response mechanisms greatly improves the efficiency and safety of emergency response.
[0051] It should be understood that the phrase "an embodiment" or "one embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this disclosure. Therefore, "in one embodiment" or "in one embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. The above-mentioned embodiment numbers are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.
[0052] The above description is merely a preferred embodiment of this disclosure and does not limit the patent scope of this disclosure. Any equivalent structural transformations made using the contents of this specification and drawings under the inventive concept of this disclosure, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this disclosure.
Claims
1. An intelligent leakage current early warning device, comprising, The tube body, the front cover and the rear cover located at both ends of the tube body, are characterized by the following: a battery, a main board and a lamp head installed inside the tube body; the main board is electrically connected to the battery; the lamp head is electrically connected to the main board; the battery is installed near the rear cover; the lamp head is located at the front cover; the main board is located between the battery and the lamp head; and the main board is equipped with a detection chip, a buzzer, a display screen and a warning light. The detection chip detects whether there is a leakage current in the environment. When a leakage current is detected, the motherboard controls the buzzer to sound, the warning light to flash, and the leakage current information to be displayed on the screen. The motherboard is equipped with a communication chip, which sends the leakage current information to the mobile terminal; and / or, the communication chip receives the warning information sent by the mobile terminal, and the motherboard controls the buzzer to sound, the warning light to flash, and the warning information to be displayed on the screen.
2. The intelligent leakage current early warning device according to claim 1, characterized in that, The motherboard receives the modification information sent by the mobile terminal, and the modified information is displayed on the screen.
3. The intelligent leakage current early warning device according to claim 1, characterized in that, From the rear end cap towards the front end cap, there is a handle on the tube body near the rear end cap, a button at the front of the handle, and a display screen at the front of the button.
4. The intelligent leakage current early warning device according to claim 3, characterized in that, The distance between the center of the button and the front end of the handle is greater than or equal to 0 and less than or equal to 8 mm, and the width and length of the button are both greater than or equal to 10 mm.
5. The intelligent leakage current early warning device according to claim 1, characterized in that, On the other side of the tube corresponding to the button, there is an identification protrusion between the button and the handle.
6. The intelligent leakage current early warning device according to claim 1, characterized in that, The ratio of the distance from the center of the display screen to the foremost point of the tube to the length of the tube ranges from 0.36 to 0.3895.
7. The intelligent leakage current early warning device according to claim 1, characterized in that, The tube length ranges from 475 to 485 mm, and the distance from the center of the display screen to the front end of the tube ranges from 175 to 185 mm.
8. The intelligent leakage current early warning device according to claim 1, characterized in that, The length range of the intelligent leakage current early warning device is 480-520mm.
9. The intelligent leakage current early warning device according to claim 3, characterized in that, The lamp head includes an aluminum substrate, a main board limiting plug, and a reflector. The main board limiting plug is fitted onto the main board, the aluminum substrate is vertically fixed on the main board, and the main board limiting plug is in direct contact with the aluminum substrate. The reflector is set to correspond to the position of the lamp beads on the aluminum substrate.
10. The intelligent leakage current early warning device according to claim 3, characterized in that, The battery is located inside the tube corresponding to the handle. A warning light is installed on the display screen near the handle. A sound hole is located on the tube opposite the display screen, and a buzzer is installed on the main board corresponding to the sound hole.