Electric water heater leakage quick detection device

Abstract

The utility model belongs to the field of electric leakage detection, especially electric water heater electric leakage fast detection device, the current device cannot realize nondestructive rapid discrimination, lead to detection process is complicated, the efficiency is low, and need direct contact live component in the dismounting process, there are electric shock, short circuit and other serious security hidden trouble problem, present the following scheme, it includes the line row box, the inside fixed setting of line row box has the circuit board, the one side of line row box is provided with the plug, the top of line row box is set up with three jack; Detection assembly is provided on the line row box and is used for detecting the electric leakage of the electric leakage wall of the electric water heater. In the utility model, through the setting of detection assembly, the user need not disassemble the equipment or contact the live component, and the whole operation from fast connection, stable contact detection to automatic discrimination of electric leakage risk can be completed, the detection efficiency is improved, and the electric shock, short circuit and other security hidden troubles in the dismounting process are completely avoided.

Description

Technical Field

[0001] This utility model relates to the field of leakage current detection technology, and in particular to a rapid leakage current detection device for electric water heaters. Background Technology

[0002] Electric water heaters, as essential bathroom appliances in modern homes, rapidly heat water by converting electrical energy into heat energy, offering instant use and convenient installation. Their core components include the inner tank (for storing hot water), the heating element (for efficient heating), the temperature control system (for precise temperature control), and the anti-electric shock wall (leakage protection). The anti-electric shock wall technology reduces voltage by extending the water flow path, effectively preventing the risk of electric shock caused by leakage. In traditional electric water heaters, after prolonged use, if the heating element is damaged and leaks electricity, after replacing the heating element, it is essential to check whether the anti-electric shock wall has been damaged and leaking electricity.

[0003] Currently, traditional electric water heater leakage detection devices usually require disassembling the anti-electric shock wall from the water heater and then using a multimeter to test the resistance parameters in sections. Although this can complete basic leakage detection, it cannot achieve non-destructive and rapid identification, resulting in a cumbersome and inefficient detection process. Furthermore, the disassembly and assembly process requires direct contact with live parts, posing serious safety hazards such as electric shock and short circuits. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as the inability to achieve non-destructive and rapid identification, which leads to a cumbersome and inefficient testing process, and the need for direct contact with live parts during disassembly and assembly, posing serious safety hazards such as electric shock and short circuits. Therefore, this invention proposes a rapid leakage detection device for electric water heaters.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A rapid leakage current detection device for electric water heaters includes:

[0007] A cable tray box, wherein a circuit board is fixedly installed inside the cable tray box, a plug is provided on one side of the cable tray box, the plug is electrically connected to the circuit board, and three sockets are provided on the top of the cable tray box, all three sockets being electrically connected to the circuit board.

[0008] The junction box is equipped with a detection component, which is used to detect the water heater's anti-electric shock wall.

[0009] In one possible design, the detection assembly includes an electromagnetic coil relay electrically disposed on the circuit board, a test probe electrically plugged into the top of the cable tray and electrically connected to the circuit board, and a buzzer alarm fixedly disposed on the top of the cable tray and electrically connected to the circuit board.

[0010] In one possible design, a rotating shaft is rotatably provided on both sides of the inner wall of the three sockets. The same cover is fixedly provided on the side of the two rotating shafts located in the same socket that are close to each other. A torsion spring is sleeved on the outside of the two rotating shafts located in the same socket. One end of the torsion spring is fixedly connected to one side of the cover, and the other end of the torsion spring is fixedly connected to one side of the inner wall of the socket.

[0011] In one possible design, a strong magnet is embedded in the external metal tip of the detection probe.

[0012] In one possible design, a shelf is fixedly provided on one side of the cable tray.

[0013] In one possible design, a hanging bracket is fixedly installed at the bottom of the cable tray box.

[0014] In this application, upon initial use, first insert the plug of the testing device into the wall socket originally used by the electric water heater, ensuring the plug is fully inserted to power the entire device (at this time, the cover inside the socket is closed due to the torsion spring, preventing electric shock and blocking dust and moisture from entering the socket). Then, insert the power plug of the electric water heater into the three-hole socket on the top of the testing device. When the power plug of the electric water heater is inserted into the socket, the cover is rotated inward around the hinge point by the pressure of the power plug insertion, until the power plug is fully inserted into the socket, at which point the cover is fully opened and fits against the inner wall of the socket. Then, remove the test probe from the shelf on the side of the cable box. If the testing environment has limited space, the hook at the bottom of the cable box can be hung on a wall hook or water pipe for easy one-handed operation. Then, holding the test probe, bring the metal tip close to the red light at the hot water outlet of the electric water heater. The colored threaded iron part is automatically attracted to the metal surface by a strong magnet, ensuring a stable contact. Because the test probes are electrically connected to the circuit board, the electromagnetic coil relay on the circuit board inside the detection device monitors the leakage current of the water heater's anti-electric shock wall in real time. If the electromagnetic coil relay detects a leakage current >10 mA (the safe current for the human body is ≤10 mA, and the trigger threshold for household leakage protection devices is 30 mA), the electromagnetic coil relay will engage. The engaged electromagnetic coil relay will then send a signal back to the circuit board. The circuit board will receive the signal and transmit it to the buzzer alarm, triggering it to sound continuously. (If the current is ≤10 mA, the relay remains open, and the buzzer will not sound). A sounding buzzer alarm indicates that the anti-electric shock wall is damaged and there is a risk of leakage; the water heater must be stopped immediately, and the anti-electric shock wall components must be replaced. A silent buzzer alarm indicates that the anti-electric shock wall is normal and safe to continue using.

[0015] This utility model has the following beneficial effects:

[0016] In this invention, the detection components allow users to complete the entire process—from quick connection and stable contact detection to automatic leakage risk assessment—without disassembling the device or touching live parts, all in just 3 minutes. Compared to the traditional method that requires 1 hour of disassembly and testing with a multimeter, this significantly improves detection efficiency while completely eliminating safety hazards such as electric shock and short circuits during disassembly and assembly. Furthermore, the precise threshold judgment using relays replaces manual readings, effectively eliminating detection errors and providing an efficient, accurate, and risk-free intelligent solution for the safe maintenance of electric water heaters. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall main structure of the electric water heater leakage rapid detection device proposed in this utility model.

[0018] Figure 2 This is a side view of the overall structure of the electric water heater leakage rapid detection device proposed in this utility model;

[0019] Figure 3 This is a bottom view of the overall structure of the rapid leakage detection device for electric water heaters proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of the internal structure of the wiring box of the electric water heater leakage rapid detection device proposed in this utility model;

[0021] Figure 5 This is a cross-sectional view and enlarged structural schematic diagram of the socket of the electric water heater leakage rapid detection device proposed in this utility model.

[0022] Figure 6 This is a block diagram of the detection circuit for the rapid leakage detection device for electric water heaters proposed in this utility model.

[0023] In the diagram: 1. Cable tray; 2. Circuit board; 201. Electromagnetic coil relay; 3. Plug; 4. Socket; 401. Shaft; 402. Cover; 403. Torsion spring; 5. Test probes; 501. Strong magnet; 6. Buzzer alarm; 7. Placement rack; 8. Hanging rack. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In one embodiment

[0026] Reference Figure 1-6The testing device includes: a cable tray 1, a circuit board 2, a plug 3, a socket 4, and testing components. The cable tray 1 serves as the main body of the device, providing the foundation for the installation and support of other components. The cable tray 1 is made of materials with certain strength and insulation properties, such as plastic, to ensure safe use during testing and avoid dangerous situations such as leakage. The cable tray 1 is designed as a rectangular shape for easy handling and operation. The circuit board 2 is fixedly installed inside the cable tray 1 and is the electrical control core of the entire testing device. The circuit board 2 is covered with various electronic components and circuits. Through the coordinated operation of these components and circuits, the function of detecting leakage current in electric water heaters is realized. A plug 3 is provided on one side of the wiring box 1. The plug 3 is electrically connected to the circuit board 2. The plug 3 adopts the standard power plug specification so that it can be easily inserted into the power socket to provide the power required for the operation of the entire detection device. Three sockets 4 are provided on the top of the wiring box 1. These three sockets 4 are all electrically connected to the circuit board 2. The sockets 4 are used to connect the power cord of the electric water heater to be tested. Its specifications and shape match common power plugs to ensure a tight connection and a good electrical connection.

[0027] The detection component includes an electromagnetic coil relay 201 (model: JQX-13F) electrically mounted on the circuit board 2. As a key component of the detection component, the electromagnetic coil relay 201 can control the circuit's on / off state according to the control signal from the circuit board 2, thereby cutting off the circuit in time when leakage is detected to ensure safe use. A test probe 5 is electrically plugged into the top of the cable tray 1. The test probe 5 is electrically connected to the circuit board 2. A strong magnet 501 is embedded in the metal tip of the test probe 5. During testing, the metal tip of the test probe 5 can be attracted to the threaded iron part (red end) of the hot water outlet of the electric water heater by the strong magnet 501, which facilitates the testing operation and ensures a stable connection between the test probe 5 and the testing point, thereby improving the accuracy of the test.

[0028] A buzzer alarm 6 is fixedly installed on the top of the junction box 1. The buzzer alarm 6 is electrically connected to the circuit board 2. When the detection component detects a leakage current in the electric water heater (the electromagnetic coil relay 201 detects a leakage current > 10 mA (the safe current for the human body is ≤ 10 mA, and the trigger threshold for household leakage protection devices is 30 mA), the electromagnetic coil relay 201 is activated and sends a signal back to the circuit board 2). The circuit board 2 then sends a signal to the buzzer alarm 6 (model: AD16-22SM), and the buzzer alarm 6 emits a loud buzzing sound to remind the user that there is a risk of electric leakage in the electric water heater and to take appropriate measures in time.

[0029] This application can be used in the field of rapid detection devices for leakage current in electric water heaters, and can also be used in other fields applicable to this application.

[0030] In another embodiment

[0031] Reference Figure 1-5 This invention relates to a rapid leakage detection device for electric water heaters. The device comprises three sockets 4, each with a rotating shaft 401 rotatably mounted on both sides of its inner wall. Two shafts 401 within the same socket 4 are fixedly fitted with a single cover 402 on their adjacent sides. Two shafts 401 within the same socket 4 are fitted with torsion springs 403. One end of the torsion spring 403 is fixedly connected to one side of the cover 402, and the other end is fixedly connected to one side of the inner wall of the socket 4. When the socket 4 is not in use, the cover 402 automatically closes under the action of the torsion spring 403, sealing the socket 4 and preventing dust, moisture, and other foreign objects from entering the socket 4 and affecting its normal use and electrical performance. When the socket 4 needs to be used, simply insert the power plug into the socket 4. The cover 402 will rotate and open around the shaft 401 under the push of the plug. After the plug is fully inserted, the cover 402 fits tightly against the plug.

[0032] A shelf 7 is fixedly installed on one side of the cable box 1. The shelf 7 is made of the same material as the cable box 1. Its shape can stably hold the test probe 5. When the test probe 5 is not in use, it can be placed on the shelf 7 for easy storage and management, and to prevent the test probe 5 from being lost or damaged due to random placement.

[0033] The bottom of the cable tray 1 is fixedly equipped with a hanging bracket 8. The shape of the hanging bracket 8 is a hook shape that is easy to hook. When in use, the cable tray 1 can be hooked to a suitable position at the inspection point, such as a pipe or bracket, through the hanging bracket 8, which is convenient for operators to carry out inspection operations. At the same time, it avoids the cable tray 1 from being placed randomly and occupying space or being damaged by collision. When not in use, the cable tray 1 can also be hooked to a storage place through the hanging bracket 8 for convenient placement and storage.

[0034] However, as is well known to those skilled in the art, the working principles and wiring methods of circuit board 2, electromagnetic coil relay 201, test probe 5 and buzzer alarm 6 are all conventional methods or common knowledge, and will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0035] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A rapid leakage detection device for electric water heaters, characterized in that, include: A cable tray (1) is provided inside which a circuit board (2) is fixedly installed. A plug (3) is provided on one side of the cable tray (1). The plug (3) is electrically connected to the circuit board (2). Three sockets (4) are provided on the top of the cable tray (1). All three sockets (4) are electrically connected to the circuit board (2). The wiring box (1) is equipped with a detection component, which is used to detect the anti-electric shock wall of the water heater.

2. The rapid leakage detection device for electric water heaters according to claim 1, characterized in that, The detection component includes an electromagnetic coil relay (201) electrically mounted on the circuit board (2), a test probe (5) electrically connected to the top of the cable tray (1), the test probe (5) being electrically connected to the circuit board (2), and a buzzer alarm (6) fixedly mounted on the top of the cable tray (1), the buzzer alarm (6) being electrically connected to the circuit board (2).

3. The rapid leakage detection device for electric water heaters according to claim 1, characterized in that, A rotating shaft (401) is rotatably provided on both sides of the inner wall of the three sockets (4). The same cover (402) is fixedly provided on the side of the two rotating shafts (401) located in the same socket (4) that are close to each other. A torsion spring (403) is sleeved on the outside of the two rotating shafts (401) located in the same socket (4). One end of the torsion spring (403) is fixedly connected to one side of the cover (402), and the other end of the torsion spring (403) is fixedly connected to one side of the inner wall of the socket (4).

4. The rapid leakage detection device for electric water heaters according to claim 2, characterized in that, The metal tip of the test pen (5) is embedded with a strong magnet (501).

5. The rapid leakage detection device for electric water heaters according to claim 1, characterized in that, A placement rack (7) is fixedly installed on one side of the cable box (1).

6. The rapid leakage detection device for electric water heaters according to claim 1, characterized in that, The bottom of the cable box (1) is fixedly provided with a bracket (8).

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