A leakage detection device and method for a steelmaking electric apparatus
By designing anti-drop mechanisms and component storage mechanisms on the leakage current detector, the problem of damage to the detector when accidentally dropped or bumped is solved, and the detection components can be quickly stored, improving the safety and convenience of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIANGYIN XINGCHENG SPECIAL STEEL WORKS CO LTD
- Filing Date
- 2026-03-19
- Publication Date
- 2026-06-26
AI Technical Summary
Existing leakage current detectors are usually handheld, lacking sufficient protection against accidental drops or collisions, which can easily damage internal electronic components. Furthermore, when working outdoors, the externally connected detection components are difficult to store quickly, increasing the difficulty of operation and the risk of loss.
A portable leakage current detection device was designed, which adopts a shock-proof mechanism with a silicone protective shell, through holes, shock-proof air cushion and metal back plate, combined with a leakage current detection component storage mechanism, including a card holder, magnetic plate and leakage current detection component storage box, to achieve stable connection and quick storage of components.
It effectively protects internal electronic components from accidental damage, reduces the risk of loss, improves the reliability and lifespan of the equipment, simplifies the operation process, and ensures the safety and convenience of the testing components.
Smart Images
Figure CN122283199A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of leakage current detection devices, specifically to a leakage current detection device and detection method for steelmaking electrical equipment. Background Technology
[0002] As a key component of modern steel production, the safety and reliability of steelmaking electrical equipment are of paramount importance. Due to harsh working environments, high current intensity, and complex operation, these devices are prone to electrical faults, especially leakage current. This not only affects production efficiency but may also threaten the lives of workers. Therefore, it is particularly important to develop an efficient, reliable, and easy-to-use leakage current detection device and its supporting methods.
[0003] A search revealed that patent publication number CN116500494A discloses a low-voltage leakage current detector and detection method for power distribution networks. The low-voltage leakage current detector includes: a detector body, a clamping unit, and an anti-drag unit. The anti-drag unit is disposed on the detector body, and the clamping unit is connected to the anti-drag unit via a wire. The clamping unit includes a fixed base and clamping plates. The clamping plates are arranged in pairs within the fixed base and rotatably connected to it. The inner surface of the clamping plates is provided with an arc-shaped groove for clamping the circuit under test. The anti-drag unit includes a sealed box disposed on the detector body. A rotating shaft is rotatably disposed within the sealed box, and the wire is wound around the rotating shaft. An elastic element for tightening the wire is provided on the rotating shaft. This invention solves the problem of unstable connection affecting detection data in existing detectors.
[0004] While the aforementioned leakage current detectors have enhanced connection stability, they still have some limitations. Existing leakage current detectors are usually handheld, lacking sufficient protection in case of accidental drops or collisions, which can easily damage internal electronic components. Furthermore, for scenarios where it is often necessary to carry the detector around for work, the various externally plugged-in detection components (such as detection lines, probes, etc.) will increase the difficulty of operation and take up extra space if they cannot be stored quickly and effectively, while also increasing the risk of loss. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides a leakage current detection device and method for steelmaking electrical equipment, which offers advantages in terms of higher safety and convenience. It solves the problems of existing leakage current detectors, which are usually handheld and lack sufficient protective measures in case of accidental drops or collisions, easily causing damage to internal electronic components. Furthermore, for scenarios where it is frequently necessary to carry the detector for field operations, the various externally plugged detection components (such as detection lines, probes, etc.) will increase the difficulty of operation and occupy extra space if they cannot be quickly and effectively stored, while also increasing the risk of loss.
[0006] To achieve the aforementioned goals of enhanced safety and convenience, the present invention adopts the following technical solution: a leakage current detection device for steelmaking electrical equipment, comprising a portable leakage current detector, characterized in that: the portable leakage current detector has a leakage current detection mechanism; the portable leakage current detector is externally encased in a drop-proof mechanism; a leakage current detection component storage mechanism is provided on the back of the drop-proof mechanism; the leakage current detection mechanism includes a display panel, control button connection sockets, detection wires, a shark clip detection head, and detection probes; the display panel and control buttons are fixedly installed on the front of the portable leakage current detector; two connection sockets are fixedly installed on the top of the portable leakage current detector; detection wires are inserted into the interior of both connection sockets; and a shark clip detection head and a detection probe are respectively fixedly installed at the ends of the two detection wires away from the connection sockets.
[0007] Preferably, the anti-fall mechanism includes a silicone protective shell, through holes, an anti-fall air cushion, and a metal back plate. The portable leakage current detector is externally attached to the silicone protective shell. The top of the silicone protective shell has two through holes. The anti-fall air cushion is fixedly installed on the outside of the silicone protective shell. The metal back plate is installed on the back of the silicone protective shell.
[0008] Preferably, the two through holes are adapted to the two connecting holes, and the number of the anti-drop air cushions is two, with the two anti-drop air cushions respectively fixedly installed on the left and right sides of the silicone protective shell.
[0009] Preferably, the leakage current detection component storage mechanism includes a snap-fit base, a magnetic plate, a leakage current detection component storage box, an elastic element, a top plate, an L-shaped plug-in base, a fixing plate, a sponge cleaning plate, and a grip. The snap-fit base is movably installed on the back of the silicone protective shell. The magnetic plate is fixedly installed on the side of the snap-fit base near the silicone protective shell. The leakage current detection component storage box is snapped into the inside of the snap-fit base. An elastic element is provided inside the snap-fit base. The top plate is slidably connected inside the snap-fit base. An L-shaped plug-in base is fixedly installed on the side of the leakage current detection component storage box away from the snap-fit base. The fixing plate is inserted into the inside of the L-shaped plug-in base. A sponge cleaning plate is fixedly installed on the side of the fixing plate near the leakage current detection component storage box. A grip is fixedly installed on the side of the fixing plate away from the leakage current detection component storage box.
[0010] Preferably, the bottom of the silicone protective shell has an open structure, the snap-fit base is movably connected to the back of the metal back plate via a magnetic plate, and the snap-fit base has a "C" shaped structure.
[0011] Preferably, the elastic element is installed on the bottom inner wall of the snap-fit seat, and the elastic element is installed on the inner walls of both sides of the snap-fit seat.
[0012] Preferably, the top plate is slidably installed on the bottom of the snap-fit base, the top of the top plate is in contact with the bottom of the leakage current detection component storage box, and the top plate abuts against the elastic element.
[0013] Preferably, the L-shaped connectors are a pair, and the fixing plate is inserted between the two L-shaped connectors.
[0014] Preferably, the portable leakage current detector internally includes a power module, a main control board, a detection circuit, a data processing and display system, and a safety protection module, wherein: The power module includes a battery compartment located in the center of the portable leakage current detector and an adjacent voltage regulator circuit. The main control board is located in the center of the portable leakage current detector and integrates a microcontroller unit (MCU), signal conditioning circuit and communication interface; The detection circuit is located near the top connection socket and is equipped with a high-sensitivity current transformer and protection circuit. The data processing and display system includes an analog-to-digital converter (ADC) and a memory; The safety protection module adopts a double-layer PCB board design to enhance electrical isolation, a metal shielding cover covers the main control board to reduce electromagnetic interference, and a built-in temperature sensor monitors the internal temperature.
[0015] The leakage current detection method using the above-mentioned leakage current detection device includes the following steps: S1. Precisely attach the silicone protective shell to the portable leakage current detector, ensuring that the two through holes on its top are accurately aligned and pass through the connection socket of the portable leakage current detector. S2. Securely connect the two detection lines to their corresponding connection sockets to ensure stable and reliable signal transmission; S3. The magnetic plate securely connects the card holder to the back of the silicone protective shell, ensuring the stability and convenience of the leakage current detection component storage mechanism; S4. Strictly adhere to safety procedures, using the shark clip test head and test probes to sequentially contact different parts of the steelmaking electrical equipment under test for a comprehensive leakage current scan; during the test, closely monitor the data changes on the display panel, and promptly record any abnormal readings to ensure the authenticity and accuracy of the data; S5. After the on-site inspection is completed, the collected data is analyzed in depth using the built-in data processing and display system to determine whether there is a leakage problem and its severity; corresponding measures are taken based on the analysis results to ensure the effective implementation of subsequent rectification measures; S6. Disconnect the connection between the detection line and the connection socket, then press down on the grip to retract the elastic element and easily remove the leakage current detection component storage box, preparing it for tool storage. S7. Place the shark clip detection head and test probe neatly into the leakage current detection component storage box, and then securely snap the leakage current detection component storage box back into the connector to ensure that all components are properly stored and prevent damage or loss. S8. Organize all the obtained data to form a detailed test report, covering the test date, time, location, tested object and final results, to provide decision support for management and serve as a reference for the future.
[0016] Compared with the prior art, this application has the following beneficial effects: 1. The leakage current detection device and method for this steelmaking electrical equipment effectively solves the problem of easy damage to handheld designs in case of accidental drops or collisions by using a silicone protective shell, through holes, anti-drop air cushions, and a metal back plate in the anti-drop mechanism. The silicone protective shell and anti-drop air cushions work together to absorb impact force, reducing the impact of direct impact on the instrument. The metal back plate enhances structural strength and provides additional protection. This multi-layer protection design ensures that internal electronic components are well protected even in harsh environments, reducing the risk of damage caused by accidents and improving the reliability and service life of the equipment.
[0017] 2. The leakage current detection device and detection method for the steelmaking electrical equipment, through the leakage current detection component storage mechanism, allows users to easily put the leakage current detection component storage box, neatly place the shark clip detection head and detection probe into the leakage current detection component storage box, and then securely snap the leakage current detection component storage box back into the snap-fit socket, realizing the quick storage and retrieval of the detection component and reducing the risk of component loss.
[0018] 3. The leakage current detection device and detection method of the steelmaking electrical equipment. The sponge cleaning plate in the leakage current detection component storage mechanism plays a key role in the storage process. When the user puts the detection components such as detection wires, shark clip detection heads and detection probes into the leakage current detection component storage box, the sponge cleaning plate can be used to gently wipe the surface of the portable leakage current detector to remove any dust or stains that may be attached, ensuring the cleanliness of the portable leakage current detector and preventing it from being damaged due to dust. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the portable leakage current detector and leakage current detection mechanism of the present invention; Figure 2 This is a schematic diagram of the planar structure of the anti-fall mechanism of the present invention; Figure 3 This is a three-dimensional structural diagram of the anti-fall mechanism of the present invention; Figure 4 This is a side view of the structure of the present invention; Figure 5 This is a three-dimensional structural diagram of the card holder of the present invention; Figure 6 This is a three-dimensional structural diagram of the storage box for the leakage current detection component of the present invention; Figure 7 This is a schematic diagram of the leakage current detection method for steelmaking electrical equipment according to the present invention.
[0020] In the diagram: 1. Portable leakage current detector; 2. Leakage current detection mechanism; 201. Display panel; 202. Control buttons; 203. Connection socket; 204. Detection line; 205. Shark clip detection head; 206. Detection probes; 3. Drop protection mechanism; 301. Silicone protective shell; 302. Through hole; 303. Drop protection air cushion; 304. Metal back plate; 4. Leakage current detection component storage mechanism; 401. Snap-on socket; 402. Magnetic plate; 403. Leakage current detection component storage box; 404. Elastic element; 405. Top plate; 406. L-shaped plug socket; 407. Fixing plate; 408. Sponge cleaning plate; 409. Grip plate. Detailed Implementation
[0021] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention. Example 1
[0022] like Figure 1-7 A leakage current detection device for steelmaking electrical equipment includes a portable leakage current detector 1, the portable leakage current detector 1 having a leakage current detection mechanism 2, the portable leakage current detector 1 being wrapped with an anti-drop mechanism 3, and a leakage current detection component storage mechanism 4 being provided on the back of the anti-drop mechanism 3.
[0023] The anti-fall mechanism 3 includes a silicone protective shell 301, a through hole 302, an anti-fall air cushion 303, and a metal back plate 304. The portable leakage current detector 1 is externally attached to the silicone protective shell 301. The top of the silicone protective shell 301 has two through holes 302. The anti-fall air cushion 303 is fixedly installed on the outside of the silicone protective shell 301. The back of the silicone protective shell 301 is fixedly installed with the metal back plate 304. The leakage current detection component storage mechanism 4 includes a snap-fit connector 401, a magnetic plate 402, a leakage current detection component storage box 403, an elastic element 404, a top plate 405, an L-shaped connector 406, a fixing plate 407, a sponge cleaning plate 408, and a gripper 409. The snap-fit connector 401 is movably mounted on the back of the silicone protective shell 301. A magnetic plate 402 is fixedly mounted on the side of the snap-fit connector 401 near the silicone protective shell 301. The leakage current detection component storage box 403 is snapped into the inside of the snap-fit connector 401. The connector 401 has an elastic element 404 inside, and a top plate 405 is slidably connected inside the connector 401. An L-shaped plug 406 is fixedly installed on the side of the leakage current detection component storage box 403 away from the connector 401. A fixing plate 407 is inserted into the L-shaped plug 406. A sponge cleaning plate 408 is fixedly installed on the side of the fixing plate 407 near the leakage current detection component storage box 403. A grip 409 is fixedly installed on the side of the fixing plate 407 away from the leakage current detection component storage box 403.
[0024] Furthermore, the leakage current detection mechanism 2 includes a display panel 201, control buttons 202, connection sockets 203, detection wires 204, a shark clip detection head 205, and test probes 206. The display panel 201 and control buttons 202 are fixedly installed on the front of the portable leakage current detector 1. Two connection sockets 203 are fixedly installed on the top of the portable leakage current detector 1. Detection wires 204 are inserted into the interior of each of the two connection sockets 203. The shark clip detection head 205 and test probes 206 are fixedly installed at the ends of the two detection wires 204 away from the connection sockets 203, respectively.
[0025] A method for detecting leakage current in steelmaking electrical equipment, comprising a leakage current detection device for steelmaking electrical equipment, and further comprising the following steps: S1. Precisely attach the silicone protective shell 301 to the portable leakage current detector 1, ensuring that the two through holes 302 on its top are accurately aligned and pass through the connection socket 203 of the portable leakage current detector 1. S2. Securely connect the two detection lines 204 to the corresponding connection sockets 203 to ensure stable and reliable signal transmission; S3. The magnetic plate 402 is used to stably connect the card holder 401 to the back of the silicone protective shell 301 to ensure the stability and convenience of the leakage current detection component storage mechanism 4. S4. Strictly adhere to safety procedures, and use the shark clip detection head 205 and the test probe 206 to sequentially contact different parts of the steelmaking electrical equipment under test to perform a comprehensive leakage current scan; during the test, closely monitor the data changes on the display panel 201, and promptly record any abnormal readings to ensure the authenticity and accuracy of the data; S5. After the on-site inspection is completed, the collected data is analyzed in depth using the built-in data processing and display system to determine whether there is a leakage problem and its severity; corresponding measures are taken based on the analysis results to ensure the effective implementation of subsequent rectification measures; S6. Disconnect the connection between the detection line 204 and the connection socket 203, then press down on the grip 409 to retract the elastic element 404 and easily remove the leakage current detection component storage box 403 to prepare for tool storage. S7. Place the shark clip detection head 205 and the test probe 206 neatly into the leakage current detection component storage box 403, and then securely snap the leakage current detection component storage box 403 back into the card socket 401 to ensure that all components are properly stored and prevent damage or loss. S8. Organize all the obtained data to form a detailed test report, covering the test date, time, location, tested object and final results, to provide decision support for management and serve as a reference for the future. Example 2
[0026] The silicone protective shell 301 is made of silicone, a material with excellent elasticity and cushioning properties. It can deform under external force and quickly return to its original shape after the external force is removed. The anti-drop air cushion 303 is composed of closed air cavities. These cavities can compress air when compressed to generate reverse pressure to resist external impact. When the portable leakage current detector 1 is dropped or collided, the silicone protective shell 301 first comes into contact with the external force and absorbs and disperses the impact energy through its own elastic deformation, thereby reducing the energy transmitted to the internal electronic components. The air inside the anti-drop air cushion 303 is compressed, and the compressibility of the gas is used to further absorb the impact energy.
[0027] Hold the handle 409 and press down on the leakage current detection component storage box 403. The leakage current detection component storage box 403 moves downward, and the top plate 405 squeezes the elastic element 404. At this time, the top of the leakage current detection component storage box 403 can be disengaged from the snap-fit seat 401. Then pull the leakage current detection component storage box 403 upward to disassemble it. Conversely, when it is necessary to install the leakage current detection component storage box 403, insert the bottom of the leakage current detection component storage box 403 into the bottom of the snap-fit seat 401, and the leakage current detection component storage box... The bottom of 403 is aligned with the top of the top plate 405. Then, hold the handle 409 and press down on the leakage current detection component storage box 403. The leakage current detection component storage box 403 moves downward, and the top plate 405 squeezes the elastic element 404. At this time, the snap-fit seat 401 and the opposite side of the leakage current detection component storage box 403 are aligned. Then, release the handle 409. The elastic element 404 (such as a spring) extends and pushes the leakage current detection component storage box 403 upward, thus completing the installation of the leakage current detection component storage box 403.
[0028] During the leakage current detection of steelmaking electrical equipment, the various components inside the portable leakage current detector 1 work together to ensure the safety, accuracy and efficiency of the detection process; the power module is located in the center of the instrument, including the battery compartment and the adjacent voltage regulator circuit, which provides stable power support during the detection process and can maintain a stable voltage output even if the external power supply fluctuates, ensuring the normal operation of each electronic component. The main control board is located in the center of the interior and integrates a microcontroller unit (MCU), signal conditioning circuit and communication interface. As the core control system, the MCU is responsible for receiving data from the detection circuit, executing preset algorithms for analysis and processing, and transmitting the results to the display panel 201 through the communication interface. At the same time, it coordinates the operation of all other internal systems, such as data acquisition and storage, to ensure that the entire detection process proceeds in an orderly manner. The detection circuit is located near the top connection socket 203 and is equipped with a high-sensitivity current transformer and protection circuit. When the user uses the shark clip detection head 205 or the test probe 206 to contact the electrical equipment under test, the current transformer quickly senses the minute current change and converts it into an electrical signal, which is then transmitted to the main control board. During this process, the protection circuit prevents excessive voltage or current from damaging the internal sensitive components, ensuring safe and reliable detection. The data processing and display system includes an analog-to-digital converter (ADC) and a memory. The ADC converts the analog signal from the detection circuit into a digital signal in real time, allowing the MCU to process it further. After calculation, the relevant data is sent to the display panel 201 to be presented to the user in an intuitive way, facilitating real-time monitoring and recording. Important data is stored in the memory for subsequent analysis and report generation. To ensure stable operation of the instrument in various complex environments, multiple safety protection measures are adopted; the double-layer PCB board design enhances electrical isolation and reduces interference between different circuits; a metal shielding cover covers the main control board to reduce the impact of external electromagnetic interference; a built-in temperature sensor continuously monitors the internal temperature, and once an abnormal rise is detected, an alarm mechanism is triggered to remind the user to take appropriate measures to avoid the risk of overheating; these comprehensive safety protection measures not only improve the working stability of the instrument, but also protect the safety of the user.
[0029] In summary, the leakage current detection device and method for this steelmaking electrical equipment effectively solves the problem of easy damage to handheld designs in case of accidental drops or collisions through the silicone protective shell 301, through hole 302, anti-drop air cushion 303, and metal back plate 304 in the anti-drop mechanism 3. The silicone protective shell 301 and anti-drop air cushion 303 work together to absorb impact force, reducing the impact of direct impact on the instrument. The metal back plate 304 enhances the structural strength and provides additional protection. This multi-layered protective design ensures that the internal electronic components are well protected even in harsh environments, reducing the risk of damage caused by accidents and improving the reliability and service life of the equipment.
[0030] Furthermore, the leakage current detection device and detection method for the steelmaking electrical equipment, through the leakage current detection component storage mechanism 4, allows users to easily and neatly place the shark clip detection head 205 and the detection probe 206 into the leakage current detection component storage box 403, and then securely snap the leakage current detection component storage box 403 back into the snap-fit base 401, achieving rapid storage and retrieval of the detection component and reducing the risk of component loss.
[0031] Furthermore, in the leakage current detection device and method for the steelmaking electrical equipment, the sponge cleaning plate 408 in the leakage current detection component storage mechanism 4 plays a crucial role in the storage process. When the user places the detection components, such as the detection wire 204, the shark clip detection head 205, and the detection probe 206, into the leakage current detection component storage box 403, the sponge cleaning plate 408 can gently wipe the surface of the portable leakage current detector 1 to remove any dust or stains that may adhere to it, ensuring the cleanliness of the portable leakage current detector 1 and preventing damage due to dust ingress. This solves the problem that existing leakage current detectors are usually handheld designs, lacking sufficient protective measures in case of accidental drops or collisions, which can easily damage internal electronic components. Moreover, for scenarios where it is frequently necessary to carry the detector out for work, if the various externally plugged detection components, such as detection wires and probes, cannot be stored quickly and effectively, it will increase the difficulty of operation, occupy extra space, and also increase the risk of loss.
[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A leakage detection device for steelmaking electrical equipment, comprising a portable leakage detector (1), characterized in that: The portable leakage current detector (1) has a leakage current detection mechanism (2), and the portable leakage current detector (1) is wrapped with an anti-drop mechanism (3). The back of the anti-drop mechanism (3) is provided with a leakage current detection component storage mechanism (4). The leakage current detection mechanism (2) includes a display panel (201), control buttons (202), connection sockets (203), detection lines (204), shark clip detection heads (205), and test probes (206). The display panel (201) and control buttons (202) are fixedly installed on the front of the portable leakage current detector (1). Two connection sockets (203) are fixedly installed on the top of the portable leakage current detector (1). Detection lines (204) are inserted into the two connection sockets (203). Shark clip detection heads (205) and test probes (206) are fixedly installed at the ends of the two detection lines (204) away from the connection sockets (203), respectively.
2. The electric leakage detection device for steelmaking electric equipment according to claim 1, characterized in that: The anti-fall mechanism (3) includes a silicone protective shell (301), a through hole (302), an anti-fall air cushion (303), and a metal back plate (304). The portable leakage current detector (1) is externally attached to the silicone protective shell (301). The top of the silicone protective shell (301) has two through holes (302). The anti-fall air cushion (303) is fixedly installed on the outside of the silicone protective shell (301). The metal back plate (304) is installed on the back of the silicone protective shell (301).
3. The leakage current detection device for steelmaking electrical equipment according to claim 2, characterized in that: The two through holes (302) are adapted to the two connecting holes (203), and there are two anti-fall air cushions (303). The two anti-fall air cushions (303) are respectively fixedly installed on the left and right sides of the silicone protective shell (301).
4. The electric leakage detection device for steelmaking electric equipment according to claim 2, characterized in that: The leakage current detection component storage mechanism (4) includes a snap-fit connector (401), a magnetic plate (402), a leakage current detection component storage box (403), an elastic element (404), a top plate (405), an L-shaped plug-in connector (406), a fixing plate (407), a sponge cleaning plate (408), and a grip (409). The snap-fit connector (401) is movably installed on the back of the silicone protective shell (301). The magnetic plate (402) is fixedly installed on the side of the snap-fit connector (401) near the silicone protective shell (301). The leakage current detection component storage box (403) is snapped into the inside of the snap-fit connector (401). The card holder (401) is provided with an elastic element (404) inside. The card holder (401) is slidably connected to a top plate (405). An L-shaped plug-in seat (406) is fixedly installed on the side of the leakage current detection component storage box (403) away from the card holder (401). A fixing plate (407) is inserted into the L-shaped plug-in seat (406). A sponge cleaning plate (408) is fixedly installed on the side of the fixing plate (407) close to the leakage current detection component storage box (403). A grip (409) is fixedly installed on the side of the fixing plate (407) away from the leakage current detection component storage box (403).
5. The electric leakage detection device for steelmaking electric equipment according to claim 4, characterized in that: The bottom of the silicone protective shell (301) is an open structure. The card holder (401) is movably connected to the back of the metal back plate (304) through the magnetic plate (402). The card holder (401) has a "C" shaped structure.
6. The leakage current detection device for steelmaking electrical equipment according to claim 4, characterized in that: The elastic element (404) is installed on the bottom inner wall of the snap-fit seat (401), and the elastic element (404) is installed on the inner walls of both sides of the snap-fit seat (401).
7. The leakage current detection device for steelmaking electrical equipment according to claim 4, characterized in that: The top plate (405) is slidably installed on the bottom of the snap-fit seat (401), the top of the top plate (405) is in contact with the bottom of the leakage current detection component storage box (403), and the top plate (405) abuts against the elastic element (404).
8. The electric leakage detection device for steelmaking electric equipment according to claim 4, characterized in that: The L-shaped connectors (406) are a pair, and the fixing plate (407) is inserted between the two L-shaped connectors (406).
9. A leakage current detection device for steelmaking electrical equipment according to claim 1, characterized in that: The portable leakage current detector (1) is internally equipped with a power module, a main control board, a detection circuit, a data processing and display system, and a safety protection module, wherein: The power module includes a battery compartment located in the center of the portable leakage current detector (1) and an adjacent voltage regulator circuit. The main control board is located in the center of the portable leakage current detector (1) and integrates a microcontroller unit (MCU), signal conditioning circuit and communication interface; The detection circuit is located near the top connection socket (203) and is equipped with a high-sensitivity current transformer and protection circuit. The data processing and display system includes an analog-to-digital converter (ADC) and a memory; The safety protection module includes a double-layer PCB design to enhance electrical isolation, a metal shield covering the main control board to reduce electromagnetic interference, and a built-in temperature sensor to monitor the internal temperature.
10. A method for detecting leakage current in steelmaking electrical equipment, characterized in that, The leakage current detection device according to any one of claims 1-9 is implemented by comprising the following steps: S1. Precisely attach the silicone protective shell (301) to the portable leakage current detector (1), ensuring that the two through holes (302) on its top are accurately aligned and pass through the connection socket (203) of the portable leakage current detector (1). S2. Securely connect the two detection lines (204) to the corresponding connection sockets (203) to ensure stable and reliable signal transmission; S3. The card holder (401) is stably connected to the back of the silicone protective shell (301) by means of the magnetic plate (402) to ensure the stability and convenience of the leakage detection component storage mechanism (4); S4. Strictly abide by safety regulations, use the shark clip test head (205) and test probe (206) to contact different parts of the steelmaking electrical equipment to be tested in sequence to perform a comprehensive leakage current scan; during the test, closely monitor the data changes on the display panel (201), record any abnormal readings in a timely manner, and ensure the authenticity and accuracy of the data; S5. After the on-site inspection is completed, the collected data is analyzed in depth using the built-in data processing and display system to determine whether there is a leakage problem and its severity; corresponding measures are taken based on the analysis results to ensure the effective implementation of subsequent rectification measures; S6. Disconnect the connection between the detection line (204) and the connection socket (203), then press down on the grip (409) to retract the elastic element (404) and easily remove the leakage current detection component storage box (403) to prepare for tool storage; S7. Place the shark clip detection head (205) and the test probe (206) neatly into the leakage current detection component storage box (403), and then securely snap the leakage current detection component storage box (403) back into the card socket (401) to ensure that all components are properly stored and prevent damage or loss. S8. Organize all the obtained data to form a detailed test report, covering the test date, time, location, tested object and final results, to provide decision support for management and serve as a reference for the future.