Vibration-resistant rectifier unit protection fast-melting micro-motion indicator board

Abstract

The utility model discloses a vibration-resistant rectifier unit protection fast fuse micro-motion indicator board, which relates to the technical field of rectifier units, and comprises an indicator board body and a plurality of leads, the indicator board body is used for being installed at a detection part of a rectifier unit, the indicator board body is provided with a working circuit, and the working circuit is used for reflecting the working state of a rectifier unit fast fuse. The indicator board body is provided with a plurality of first terminals electrically connected with the working circuit; one end of the wire is used for being inserted into the terminal and fixedly connected with the two faces of the first terminal in a welding mode, the other end of the wire is provided with the second terminal, and the second terminal is used for being detachably and electrically connected with the rectifier unit. The defects of the prior art in the aspects of structure, material, process and the like are eliminated, the maintenance process is simplified, and stable operation of rectifying equipment is ensured.

Description

Technical Field

[0001] This utility model relates to the field of rectifier unit technology, and in particular to a vibration-resistant rectifier unit protection fast-melting micro-motion indicator plate. Background Technology

[0002] During the zinc system's commissioning period from 2014 to March 2023, the rectifier unit experienced multiple tripping incidents caused by the "fast melt failure 2" action. Fault analysis revealed that this was due to continuous vibration generated by the rectifier unit during operation, which caused the fast melt failure detection circuit of the rectifier arm signal box to open, thus leading to the unit's malfunction.

[0003] As a key functional device in the rectification control system, the rectifier unit is crucial for ensuring the uninterrupted normal operation of the rectifier equipment and meeting the full-load requirements of the zinc system. However, existing fast-melting micro-motion indicator plates have many problems, affecting the operational stability of the electrical system:

[0004] Structural design defects: The existing products do not fully consider the anti-loosening structure design under mechanical vibration environment, lack the reinforcement structure in stress concentration areas, and the observation gap between the terminals and the PCB board is almost zero, which makes it difficult to detect potential problems in time during the maintenance process.

[0005] Material selection issue: The selected aluminum material has insufficient mechanical strength and is prone to fatigue under long-term vibration, which affects the product's service life and performance stability.

[0006] Connection process defects: The welding interface adopts a single-sided welding method, which has the problems of incomplete welding and cold welding, resulting in unreliable connection and unstable signal transmission.

[0007] Impact of the operating environment: The equipment generates continuous vibration during operation, and the ambient temperature rises during operation. This cycle accelerates material fatigue and further reduces product reliability.

[0008] These problems not only affect the normal operation of the rectifier unit but may also lead to production interruptions, causing significant economic losses to the enterprise. Therefore, in order to ensure the stable operation of the rectifier equipment and meet production needs, it is necessary to optimize and upgrade the fast-fuse detection circuit of the rectifier unit control system. Utility Model Content

[0009] The purpose of this invention is to provide a vibration-resistant rectifier unit protection fast-melting micro-motion indicator plate to solve the problems existing in the prior art. It has a simple structure, can withstand the continuous vibration generated when the rectifier unit is running under high load, eliminates the defects in structure, material, and process in the prior art, simplifies the maintenance process, and ensures the stable operation of the rectifier equipment.

[0010] To achieve the above objectives, this utility model provides the following solution:

[0011] This utility model provides a vibration-resistant rectifier unit protection quick-blow micro-motion indicator plate, comprising: an indicator plate body and multiple wires. The indicator plate body is used to be installed on the detection part of the rectifier unit. The indicator plate body is provided with a working circuit, which is used to reflect the working status of the rectifier unit's quick-blow. The indicator plate body is provided with multiple first terminals electrically connected to the working circuit. One end of each wire is used to be inserted into the first terminal and fixedly connected to it by double-sided welding. The other end of each wire is provided with a second terminal, which is used for detachable electrical connection to the rectifier unit.

[0012] Preferably, the inner core of the conductor is copper wire.

[0013] Preferably, the copper wire has a length of 18–22 cm and a cross-sectional area of ​​2.5 mm². 2 .

[0014] Preferably, the first terminal has an open structure.

[0015] Preferably, the second terminal is a cold-pressed bullet-shaped male-female connector terminal, which includes a male terminal and a female terminal. The male terminal is connected to the wire through a cold-pressing connection process, and the female terminal is fixedly connected to the rectifier unit. The male terminal is used for plugging and fixing connection with the female terminal.

[0016] Preferably, the indicator panel body is a PCB board.

[0017] The present invention achieves the following technical advantages over the prior art:

[0018] This invention provides a vibration-resistant rectifier unit protection fast-blow micro-motion indicator board. The indicator board body can be accurately installed at the detection location of the rectifier unit, and the working circuit reflects the fast-blow status, allowing operators to promptly understand the fast-blow condition and facilitating monitoring and maintenance of the rectifier unit. Multiple first terminals electrically connected to the working circuit provide a foundation for reliable subsequent connections to wires, ensuring signal transmission and guaranteeing the effectiveness and accuracy of fast-blow status monitoring, thus improving the stability and reliability of the entire protection system. One end of the wire is fixedly connected to the first terminal using double-sided welding, greatly enhancing the connection's stability and improving signal transmission stability, effectively preventing loosening due to vibration or other external forces that could affect the transmission of the fast-blow status monitoring signal. The second terminal at the other end of the wire is detachably electrically connected to the rectifier unit, facilitating quick disassembly and reconnection during rectifier unit component maintenance or replacement, reducing maintenance costs, improving maintenance efficiency, and enhancing equipment maintainability. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the structure of the vibration-resistant rectifier unit protection quick-fuse micro-motion indicator plate provided by this utility model;

[0021] In the diagram: 1. Indicator panel body; 2. Working circuit; 3. First terminal; 4. Wire; 5. Second terminal. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] The purpose of this invention is to provide a vibration-resistant rectifier unit protection fast-melting micro-motion indicator plate to solve the problems existing in the prior art. It has a simple structure, can withstand the continuous vibration generated when the rectifier unit is running under high load, eliminates the defects in structure, material, and process in the prior art, simplifies the maintenance process, and ensures the stable operation of the rectifier equipment.

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] This utility model provides a vibration-resistant rectifier unit protection quick-fuse micro-motion indicator plate, such as... Figure 1As shown, the system includes: an indicator plate body 1 and multiple wires 4. The indicator plate body 1 is installed at the detection point of the rectifier unit. The indicator plate body 1 is equipped with a working circuit 2, which reflects the working status of the rectifier unit's fast-blow fuse. The indicator plate body 1 is equipped with multiple first terminals 3 electrically connected to the working circuit 2. One end of each wire 4 is inserted into the terminal and fixedly welded to the first terminal 3 on both sides. The other end of each wire 4 is equipped with a second terminal 5, which is detachably electrically connected to the rectifier unit. By setting the indicator plate body 1, it can be accurately installed at the detection point of the rectifier unit, and the working circuit 2 can reflect the working status of the fast-blow fuse, allowing operators to understand the fast-blow fuse status in a timely manner, facilitating the monitoring and maintenance of the rectifier unit. The multiple first terminals 3 electrically connected to the working circuit 2 provide a basis for reliable connection to the wires 4, ensuring signal transmission, ensuring the effectiveness and accuracy of fast-blow fuse status monitoring, and improving the stability and reliability of the entire protection system. One end of the wire 4 is fixedly connected to the first terminal 3 by double-sided welding, which greatly enhances the stability of the connection, improves the stability of signal transmission, and effectively avoids the transmission of the fast-fuse status monitoring signal due to loosening of the connection caused by vibration or other external forces. The second terminal 5 at the other end of the wire 4 is detachably electrically connected to the rectifier unit, which facilitates quick disassembly and reconnection during maintenance or replacement of rectifier unit components, reduces maintenance costs, improves maintenance efficiency, and enhances the maintainability of the equipment.

[0026] In a preferred embodiment, the inner core of the conductor 4 is copper wire. Copper wire has excellent conductivity, which can effectively reduce resistance, reduce power loss during transmission, ensure that the rectifier unit fast-fuse status monitoring signal is accurately and quickly transmitted to the indicator board body 1, improve the performance of the entire monitoring system, ensure that the working circuit 2 accurately reflects the fast-fuse working status, and reduce information transmission errors.

[0027] In a preferred embodiment, the copper wire is 18–22 cm long and has a cross-sectional area of ​​2.5 mm². 2 The preferred copper wire length is 20cm. This specific length satisfies the connection requirements between the indicator board body 1 and the rectifier unit, avoiding signal attenuation and wiring chaos due to excessive length, and also preventing connection failure due to insufficient length. 2.5mm 2 The cross-sectional area can ensure good conductivity while possessing a certain mechanical strength to meet the requirements of stretching and bending in actual use, and can withstand the corresponding current without overheating, making the entire electrical connection more reliable, ensuring the long-term stable operation of the system, and reducing the probability of failure.

[0028] In a preferred embodiment, the first terminal 3 has an open structure. This open structure facilitates the insertion of the wire 4 for soldering, reducing installation difficulty and improving assembly efficiency. Simultaneously, the open structure exposes the soldering area, making it easier to inspect and repair the solder joint during later maintenance, increasing the convenience and operability of the maintenance process. Furthermore, the open structure effectively prevents dust and debris from accumulating inside the terminal, thus avoiding interference with the circuit connection.

[0029] In a preferred embodiment, the second terminal 5 is a cold-pressed bullet-shaped male-female connector terminal, which includes a male terminal and a female terminal. The male terminal is connected to the wire 4 via a cold-pressing connection process, and the female terminal is fixedly connected to the rectifier unit. The male terminal is used for plug-in fixed connection with the female terminal. The use of a cold-pressed bullet-shaped male-female connector terminal and the plug-in fixed connection method ensures a stable connection even under the vibration environment of the vibrating unit. The cold-pressing connection process makes the male terminal firmly connected to the wire 4, providing high mechanical strength and stability. The fixed connection of the female terminal to the rectifier unit ensures the reliability of the connection. This structural design not only facilitates on-site installation and disassembly, but the bullet-shaped design also facilitates accurate docking, reduces connection time, and improves work efficiency. Simultaneously, this structure can withstand a certain degree of vibration without loosening, improving the electrical connection stability of the entire system in a vibration environment and effectively ensuring the normal operation of the rectifier unit protection system.

[0030] In a preferred embodiment, the indicator board body 1 is a PCB board. Using a PCB board for the indicator board body 1 offers numerous advantages. The PCB board allows for highly integrated design of the working circuit 2, reducing the overall size and weight of the indicator board, making installation more convenient, and better adapting to the space of the rectifier unit's detection area. Its circuit layout offers high precision and stability, ensuring the accuracy and reliability of signal transmission in the working circuit 2, effectively improving the accuracy of monitoring the fast-fuse operating status of the rectifier unit. Simultaneously, the PCB board can be mass-produced through standardized processes, which helps reduce production costs and ensure product quality consistency, enhancing the product's market competitiveness and promoting its widespread application in related fields.

[0031] The usage method of the vibration-resistant rectifier unit protection fast-fuse micro-motion indicator plate is as follows:

[0032] Installation phase:

[0033] PCB board installation: Accurately install the PCB board at the detection location of the rectifier unit to ensure accurate monitoring of the fast-fuse's operating status. This installation location requires precise design and planning to achieve effective sensing of the fast-fuse's operating status in critical components of the rectifier unit.

[0034] Wire 4 connection: Insert one end of wire 4 into the first terminal 3 of the PCB board and solder it on both sides. Since the first terminal 3 is an open structure, this operation is relatively convenient, and the connection is secure after soldering. The soldering process must strictly comply with relevant electrical installation standards to ensure electrical connection performance. The other end has a male terminal in a cold-pressed bullet-type male-female connector that is connected to wire 4 via a cold-pressing connection process. The cold-pressing connection ensures a reliable electrical and mechanical connection between the male terminal and wire 4.

[0035] Male and female terminal arrangement: The female terminal is fixedly installed in the corresponding position on the rectifier unit. The male terminal is used for plug-in and fixed connection with the female terminal. This design utilizes the bullet-shaped structure to facilitate accurate docking, enabling quick and accurate connection and ensuring connection quality.

[0036] Operational monitoring phase:

[0037] The working circuit 2 on the PCB board starts working, and it can reflect the working status of the rectifier unit's fast fuse in real time. During operation, the relevant electrical signals of the rectifier unit are transmitted to the working circuit 2 on the PCB board through the female terminal of the second terminal 5, the wire 4, and the first terminal 3. The working circuit 2 analyzes these signals to determine whether the rectifier unit's fast fuse is working properly.

[0038] During operation monitoring, operators can visually obtain the working status information of the fast fuse through a display device or output port connected to the PCB board, and promptly grasp whether the fast fuse has malfunctioned. If the working circuit 2 detects an abnormality in the fast fuse, such as a blown fuse, it will trigger an alarm through the corresponding alarm device, promptly reminding the operator to take measures.

[0039] Maintenance and repair phase:

[0040] Status check: When maintenance and repair of the rectifier unit are required, the first step is to observe the information fed back by the working circuit 2 of the PCB board to make a preliminary judgment on whether there is a problem with the operation of the fast fuse, and thus determine whether further inspection and replacement of the fast fuse itself or its connecting circuit and other related components are required.

[0041] Disassembly of wire 4: Since the second terminal 5 adopts a cold-pressed bullet-type male and female mating terminal with detachable connection, maintenance personnel can easily pull the male terminal out of the female terminal to quickly separate wire 4 from the rectifier unit, thereby inspecting and testing wire 4 and PCB board, or operating the corresponding parts of the rectifier unit.

[0042] Component Inspection: When the PCB board needs to be repaired, the open structure of the first terminal 3 allows staff to inspect the solder joints for issues such as loose soldering or oxidation. If problems are found, the relevant components can be repaired or replaced promptly.

[0043] Reassembly: After maintenance and repair, reverse the installation steps and reinstall and connect the PCB board, wire 4, and second terminal 5 to ensure that the installation is firm and the connection is correct before putting it back into use.

[0044] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A vibration-resistant rectifier unit protection quick-fuse micro-motion indicator plate, characterized in that: include: Indicator plate body (1), the indicator plate body (1) is used to be installed on the detection part of the rectifier unit, the indicator plate body (1) is provided with a working circuit (2), the working circuit (2) is used to reflect the working status of the fast fuse of the rectifier unit, the indicator plate body (1) is provided with a plurality of first terminals (3) electrically connected to the working circuit (2); as well as Multiple wires (4), one end of which is used to be inserted into the terminal and fixedly connected to the first terminal (3) by double-sided welding, and the other end of which is provided with a second terminal (5), which is used to be detachably electrically connected to the rectifier unit.

2. The vibration-resistant rectifier unit protection quick-fuse micro-motion indicator plate according to claim 1, characterized in that: The inner core of the conductor (4) is copper wire.

3. The vibration-resistant rectifier unit protection quick-fuse micro-motion indicator plate according to claim 2, characterized in that: The copper wire is 18–22 cm long and has a cross-sectional area of ​​2.5 mm². 2 .

4. The vibration-resistant rectifier unit protection quick-fuse micro-motion indicator plate according to claim 1, characterized in that: The first terminal (3) has an open structure.

5. The vibration-resistant rectifier unit protection quick-fuse micro-motion indicator plate according to claim 1, characterized in that: The second terminal (5) is a cold-pressed bullet-shaped male-female connector terminal. The cold-pressed bullet-shaped male-female connector terminal includes a male terminal and a female terminal. The male terminal is connected to the wire (4) through a cold-pressing connection process. The female terminal is fixedly connected to the rectifier unit. The male terminal is used to plug and fix the connection with the female terminal.

6. The vibration-resistant rectifier unit protection quick-fuse micro-motion indicator plate according to claim 1, characterized in that: The indicator panel body (1) is a PCB board.

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