Protection device for protecting sensitive element of current stabilization control system

Abstract

The utility model relates to the technical field of current stabilization cabinets, and provides a protection device for protecting a sensitive element of a current stabilization control system, which comprises a current stabilization control cabinet body, a first control winding and a second control winding are arranged on one side of the current stabilization control cabinet body, a first capacitor is arranged on one side of the first control winding, and a second capacitor is arranged on the other side of the second control winding. A first capacitor is arranged on one side of the first control winding, a second capacitor is arranged on one side of the second control winding, a digital controller and a driving module are arranged in the current stabilization control cabinet body, the output end of the first control winding is electrically connected with the input end of the first capacitor, and the output end of the second control winding is electrically connected with the input end of the second capacitor. Transient overvoltage energy is absorbed and temporarily stored through the rapid charging and discharging characteristics of the first capacitor and the second capacitor, and sensitive components are prevented from being directly impacted by the transient overvoltage energy.

Description

Technical Field

[0001] This utility model relates to the field of current stabilization cabinet technology, specifically to a protection device for sensitive components of a current stabilization control system. Background Technology

[0002] A current control cabinet is a device used to control and stabilize current output. It is widely used in various applications requiring a stable current supply. The main purpose of a current control cabinet is to control and stabilize current output, ensuring that the load devices connected to its output terminals receive a stable current supply. It uses a feedback mechanism to monitor and regulate the output current, maintaining its stability and thus protecting the load devices from current overload and short circuits.

[0003] A search revealed an existing patent (CN222582723U) that discloses a control cabinet with insect-repelling function. The cabinet includes a control cabinet shell with a door on its outer side, a ventilation opening on the side of the shell, a vertical fixing rod, a crossbeam above the rod, and a horizontal fixing rod below it. A heat dissipation device is located inside the shell at the ventilation opening. This device includes louvers and a cooling fan. An insect-repelling lamp is located on the right side of the shell. A sonic insect repellent is mounted above the lamp. A heating pad is located at the bottom of the shell. Two cooling fans are provided. Preferably, the heat dissipation device includes louvers and a cooling fan. Preferably, an insect-repelling lamp is located on the right side of the shell. Preferably, a sonic insect repellent is mounted above the lamp. Preferably, a heating pad is located at the bottom of the shell. Preferably, two cooling fans are provided. Compared with existing technologies, this utility model has the following beneficial effects: 1. By combining an insect-repelling lamp with a sonic insect repellent, the insect-repelling lamp uses light of a specific wavelength to attract insects. When the insects approach, a high-voltage grid kills them. This method effectively reduces the number of insects entering the control cabinet, thereby protecting electrical equipment from damage. The sonic insect repellent emits ultrasonic or infrasonic waves that are almost silent to humans. These sound waves disturb or cause discomfort to insects, forcing them away from the sound source. This method can effectively repel insects that are not sensitive to light or can avoid light source traps; 2. By adding cooling fans, installing fans at the ventilation openings of the control cabinet can significantly improve air circulation, promoting the rapid exhaust of hot air and the introduction of cold air. This forced convection method is more effective than natural convection, and can quickly reduce the internal temperature, protecting electronic components from overheating damage.

[0004] However, the above solutions can only protect the internal sensitive components through heat dissipation or insect repellent. In the electrolysis process, frequent fluctuations in high-current loads can cause instantaneous changes in the grid voltage, resulting in problems such as high-frequency noise, voltage spikes, and DC offset. These transient voltage fluctuations can easily cause overvoltage breakdown or thermal failure of components inside the control cabinet (such as IGBTs, drive circuits, and sensors), leading to equipment damage and production interruption.

[0005] In view of this, the present invention proposes a protection device for sensitive components of a current stabilization control system. Utility Model Content

[0006] This invention proposes a protection device for sensitive components in a current-regulating control system. It solves the problem that related technologies can only protect internal sensitive components through heat dissipation or insect repellent. In electrolysis processes, frequent fluctuations in high-current loads can cause instantaneous changes in grid voltage, generating high-frequency noise, voltage spikes, and DC offset. These transient voltage fluctuations can easily lead to overvoltage breakdown or thermal failure of components inside the control cabinet (such as IGBTs, drive circuits, and sensors), causing equipment damage and production interruptions.

[0007] The technical solution of this utility model is as follows: A protection device for sensitive components of a current stabilization control system, comprising a current stabilization control cabinet: a control winding one and a control winding two are arranged on one side of the current stabilization control cabinet; a capacitor one is arranged on one side of the control winding one; a capacitor two is arranged on one side of the control winding two; a digital controller and a drive module are arranged inside the current stabilization control cabinet; the output terminal of the control winding one is electrically connected to the input terminal of the capacitor one; the output terminal of the control winding two is electrically connected to the input terminal of the capacitor two; the capacitor one and the capacitor two are connected in parallel; the output terminals of the control winding one and the control winding two are electrically connected to the input terminals of the digital controller and the drive module; a monitoring PLC and a current stabilization PLC are arranged on one side of the current stabilization control cabinet; the output terminal of the digital controller and the drive module is connected to the input terminal of the current stabilization PLC. The input terminals are electrically connected, and the output terminal of the current-stabilized PLC is electrically connected to the input terminal of the monitoring PLC. A fixing mechanism is provided on the back of the current-stabilized control cabinet, and a sliding door mechanism is provided on the front of the current-stabilized control cabinet. Through the rapid charging and discharging characteristics of capacitor one and capacitor two, transient overvoltage energy is absorbed and temporarily stored to prevent it from directly impacting sensitive components. Through the low impedance path formed by the parallel capacitors, the high-frequency fluctuating current is diverted to the capacitor circuit, reducing the voltage fluctuation amplitude of the main circuit and dispersing the voltage fluctuation. The capacitors can adjust the system impedance characteristics to suppress the resonant overvoltage caused by line inductance and distributed capacitance, thereby suppressing the resonance effect. Capacitor one and capacitor two are connected in parallel across the two ends of control winding one and control winding two. Through real-time charging and discharging to compensate for line voltage drop, the voltage difference between circuits is reduced to achieve dynamic voltage compensation and ensure the voltage balance of each branch.

[0008] Preferably, an AC power interface 1 and a DC power interface 1 are provided on the upper side of one side of the current stabilization control cabinet, and an AC power interface 2 and a DC power interface 2 are provided on the lower side of one side of the current stabilization control cabinet. AC power interface 1 and AC power interface 2 are used to input AC power, and DC power interface 1 and DC power interface 2 are used to input DC power.

[0009] Preferably, there are two digital controllers and drive modules. The output terminals of both digital controllers and drive modules are electrically connected to the input terminal of the constant current PLC. The first AC interface and the first DC interface are electrically connected to the upper digital controller and drive module, and the second AC interface and the second DC interface are electrically connected to the other digital controller and drive module.

[0010] Preferably, the fixing mechanism includes a back plate, a first insertion frame, a heat-conducting plate, a temperature sensor, a flip cover, a signal transmitter, a second insertion frame, and expansion bolts. The back plate is fixed to the back of the flow control cabinet. The second insertion frame is fixedly connected to the outer side of the back plate, and the first insertion frame is inserted into the inner side of the back plate and the second insertion frame.

[0011] Preferably, a heat-conducting plate is provided on one side of the insertion frame, one side of the heat-conducting plate is located inside the flow control cabinet, and the other side of the heat-conducting plate is located inside the insertion frame. A temperature sensor is fixedly connected to one side of the heat-conducting plate. The heat-conducting plate and the temperature sensor can be used to detect the internal temperature of the flow control cabinet, which facilitates the monitoring of the inside of the flow control cabinet.

[0012] Preferably, a signal transmitter is fixedly connected to one side of the inner side of the insertion frame. The signal transmitter is electrically connected to the external alarm module, and the monitoring results of the internal temperature can be transmitted through the signal transmitter.

[0013] Preferably, there are two insertion frames, which are distributed on the upper and lower sides inside the back plate. An expansion bolt is fixed through the overlapping position of the insertion frame one and the insertion frame two. The expansion bolt can fix the insertion frame one and the insertion frame two after they are inserted and overlapped.

[0014] Preferably, expansion bolts are provided on both the upper and lower sides of the first and second interlocking frames, and the expansion bolts are distributed at both ends of the upper and lower sides of the overlapping position of the first and second interlocking frames.

[0015] Preferably, the sliding door mechanism includes a slide rail and a sliding door body. The slide rail is distributed between the sliding door body and the flow control cabinet. The sliding door body and the slide rail are combined to form a sliding door. Both the sliding door body and the flow control cabinet are glass door panels.

[0016] Preferably, a flap is provided on the outer side of the first fitting frame, and the flap closes the interior of the first fitting frame.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. In this utility model, the transient overvoltage energy is absorbed and temporarily stored by the rapid charging and discharging characteristics of capacitor one and capacitor two, avoiding its direct impact on sensitive components. Through the low impedance path formed by the parallel capacitors, the high-frequency fluctuating current is diverted to the capacitor circuit, reducing the voltage fluctuation amplitude of the main circuit and dispersing the voltage fluctuation. The capacitors can adjust the system impedance characteristics to suppress the resonant overvoltage caused by line inductance and distributed capacitance, thereby suppressing the resonance effect. Capacitor one and capacitor two are connected in parallel across the two ends of control winding one and control winding two. Through real-time charging and discharging to compensate for line voltage drop, the voltage difference between circuits is reduced to achieve dynamic voltage compensation and ensure the voltage balance of each branch.

[0019] 2. In this utility model, the heat-conducting plate and temperature sensor enable the detection of the internal temperature of the current control cabinet, facilitating the monitoring of the internal temperature of the current control cabinet. The signal transmitter enables the transmission of the monitoring results of the internal temperature. The expansion bolts enable the fixing of the first and second insertion frames after they are inserted and overlapped. Attached Figure Description

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 This is a top view of the three-dimensional structure of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below;

[0023] Figure 3 This is a three-dimensional schematic diagram of the rear view of this utility model;

[0024] Figure 4 This is a side view of the internal structure of this utility model;

[0025] Figure 5 This is a front view structural diagram of the present invention.

[0026] In the diagram: 1. Current control cabinet; 2. Slide rail; 3. Control winding one; 4. Sliding door body; 5. Control winding two; 6. AC power interface one; 7. DC power interface one; 8. AC power interface two; 9. DC power interface two; 10. Capacitor one; 11. Capacitor two; 12. Digital controller and drive module; 13. Current control PLC; 14. Monitoring PLC; 15. Back panel; 16. Frame one; 17. Heat-conducting plate; 18. Temperature sensor; 19. Flip cover; 20. Signal transmitter; 21. Frame two; 22. Expansion bolt. Detailed Implementation

[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0028] Example 1

[0029] A preferred embodiment of the protective device for sensitive elements of a current stabilization control system provided by this utility model is, for example... Figures 1 to 5 As shown: A protection device for sensitive elements of a current stabilization control system includes a current stabilization control cabinet 1. A control winding 3 and a control winding 5 are arranged on one side of the current stabilization control cabinet 1. A capacitor 10 is arranged on one side of the control winding 3, and a capacitor 11 is arranged on one side of the control winding 5. A digital controller and a drive module 12 are arranged inside the current stabilization control cabinet 1. The output terminal of the control winding 3 is electrically connected to the input terminal of the capacitor 10, and the output terminal of the control winding 5 is electrically connected to the input terminal of the capacitor 11. The capacitor 11 is connected in parallel with the control winding 3 and the control winding 5. The output terminals of the control winding 3 and the control winding 5 are electrically connected to the input terminal of the digital controller and drive module 12. A monitoring PLC 14 and a current stabilizing PLC 13 are installed on one side inside the current stabilizing control cabinet 1. The output terminal of the digital controller and drive module 12 is electrically connected to the input terminal of the current stabilizing PLC 13. The output terminal of the current stabilizing PLC 13 is electrically connected to the input terminal of the monitoring PLC 14. A fixing mechanism is installed on the back of the current stabilizing control cabinet 1. A sliding door mechanism is installed on the front of the current stabilizing control cabinet 1.

[0030] It should be noted that existing current stabilization cabinets still have certain shortcomings. They can only protect internal sensitive components through heat dissipation or insect control. In the electrolysis process, frequent fluctuations in high-current loads can cause instantaneous changes in the mains voltage, generating problems such as high-frequency noise, voltage spikes, and DC offset. These transient voltage fluctuations can easily cause overvoltage breakdown or thermal failure of internal components (such as IGBTs, drive circuits, and sensors), resulting in equipment damage and production interruptions.

[0031] In this embodiment, the rapid charging and discharging characteristics of capacitor 10 and capacitor 11 absorb and temporarily store transient overvoltage energy, preventing it from directly impacting sensitive components. Through the low-impedance path formed by the parallel capacitors, the high-frequency fluctuating current is diverted to the capacitor circuit, reducing the voltage fluctuation amplitude of the main circuit and dispersing voltage fluctuations. The capacitors can adjust the system impedance characteristics to suppress resonant overvoltage caused by line inductance and distributed capacitance, thereby suppressing the resonance effect. Capacitor 10 and capacitor 11 are connected in parallel across control winding 3 and control winding 5. Through real-time charging and discharging to compensate for line voltage drop, dynamic voltage compensation is achieved by reducing the voltage difference between circuits, ensuring voltage balance in each branch.

[0032] In a further preferred embodiment of this utility model, an AC power interface 6 and a DC power interface 7 are provided on the upper side of one side of the current stabilization control cabinet 1, and an AC power interface 8 and a DC power interface 9 are provided on the lower side of one side of the current stabilization control cabinet 1. AC power is input into AC power interface 6 and AC power interface 8, and DC power is input into DC power interface 7 and DC power interface 9.

[0033] In a further preferred embodiment of this utility model, there are two digital controllers and drive modules 12. The output terminals of both digital controllers and drive modules 12 are electrically connected to the input terminals of the current-regulating PLC 13. AC interface 6 and DC interface 7 are electrically connected to the upper digital controller and drive module 12, and AC interface 8 and DC interface 9 are electrically connected to the other digital controller and drive module 12.

[0034] Example 2

[0035] Based on Embodiment 1, a preferred embodiment of the protective device for sensitive elements of a current stabilization control system provided by this utility model is, for example... Figures 1 to 5 As shown: The fixing mechanism includes a back plate 15, a first insertion frame 16, a heat conduction plate 17, a temperature sensor 18, a flip cover 19, a signal transmitter 20, a second insertion frame 21, and expansion bolts 22. The back plate 15 is fixed to the back of the flow control cabinet 1. The second insertion frame 21 is fixedly connected to the outside of the back plate 15. The first insertion frame 16 is inserted and connected inside the back plate 15 and the second insertion frame 21.

[0036] In a further preferred embodiment of the present invention, a heat-conducting plate 17 is provided on one side of the insertion frame 16. One side of the heat-conducting plate 17 is located inside the flow control cabinet 1, and the other side of the heat-conducting plate 17 is located inside the insertion frame 16. A temperature sensor 18 is fixedly connected to one side of the heat-conducting plate 17.

[0037] In this embodiment, the internal temperature of the flow control cabinet 1 can be detected by the heat-conducting plate 17 and the temperature sensor 18, which facilitates the monitoring of the inside of the flow control cabinet 1.

[0038] In a further preferred embodiment of this utility model, a signal transmitter 20 is fixedly connected to one side inside the insertion frame 16, and the signal transmitter 20 is electrically connected to the external alarm module.

[0039] In this embodiment, the signal transmitter 20 enables the transmission of monitoring results of the internal temperature.

[0040] In a further preferred embodiment of this utility model, there are two insertion frames 21. The two insertion frames 21 are distributed on the upper and lower sides inside the back plate 15. An expansion bolt 22 is fixed through the overlapping position of the insertion frame 16 and the insertion frame 21.

[0041] In this embodiment, the expansion bolts 22 can fix the first insertion frame 16 and the second insertion frame 21 after they are inserted and overlapped.

[0042] In a further preferred embodiment of the present invention, expansion bolts 22 are provided on both the upper and lower sides of the first insertion frame 16 and the second insertion frame 21. The expansion bolts 22 are distributed at both ends of the upper and lower sides of the overlapping position of the first insertion frame 16 and the second insertion frame 21.

[0043] In a further preferred embodiment of the present invention, the sliding door mechanism includes a slide rail 2 and a sliding door body 4. The slide rail 2 is distributed between the sliding door body 4 and the flow control cabinet 1. The sliding door body 4 and the slide rail 2 are combined to form a sliding door. Both the sliding door body 4 and the flow control cabinet 1 are glass door panels.

[0044] In a further preferred embodiment of the present invention, a flip cover 19 is provided on the outer side of the mating frame 16, and the flip cover 19 closes the interior of the mating frame 16.

[0045] The working principle of this utility model is as follows: Utilizing the rapid charging and discharging characteristics of capacitors 10 and 11, transient overvoltage energy is absorbed and temporarily stored, preventing it from directly impacting sensitive components. Through the low-impedance path formed by the parallel capacitors, high-frequency fluctuating current is diverted to the capacitor circuit, reducing the voltage fluctuation amplitude of the main circuit and thus dispersing voltage fluctuations. The capacitors can adjust the system impedance characteristics, suppressing resonant overvoltages caused by line inductance and distributed capacitance, thereby suppressing the resonance effect. Capacitors 10 and 11 are connected in parallel across control windings 3 and 5, compensating for line voltage drop through real-time charging and discharging, reducing voltage differences between circuits to achieve dynamic voltage compensation and ensure voltage balance in each branch.

[0046] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A protection device for sensitive elements of a current stabilization control system, characterized in that, The system includes a current stabilization control cabinet (1): One side of the current stabilization control cabinet (1) is provided with a control winding one (3) and a control winding two (5). One side of the control winding one (3) is provided with a capacitor one (10), and one side of the control winding two (5) is provided with a capacitor two (11). The interior of the current stabilization control cabinet (1) is provided with a digital controller and a drive module (12). The output terminal of the control winding one (3) is electrically connected to the input terminal of the capacitor one (10), and the output terminal of the control winding two (5) is electrically connected to the input terminal of the capacitor two (11). The capacitor one (10) and capacitor two (11)... The control winding 1 (3) and control winding 2 (5) are connected in parallel. The output ends of the control winding 1 (3) and control winding 2 (5) are electrically connected to the input end of the digital controller and drive module (12). A monitoring PLC (14) and a current stabilizing PLC (13) are provided on one side inside the current stabilizing control cabinet (1). The output end of the digital controller and drive module (12) is electrically connected to the input end of the current stabilizing PLC (13). The output end of the current stabilizing PLC (13) is electrically connected to the input end of the monitoring PLC (14). A fixing mechanism is provided on the back of the current stabilizing control cabinet (1). A sliding door mechanism is provided on the front side of the current stabilizing control cabinet (1).

2. The protection device for sensitive elements of a current stabilization control system according to claim 1, characterized in that, The upper side of the current control cabinet (1) is provided with an AC power interface 1 (6) and a DC power interface 1 (7), and the lower side of the current control cabinet (1) is provided with an AC power interface 2 (8) and a DC power interface 2 (9). The AC power interface 1 (6) and the AC power interface 2 (8) are used to input AC power, and the DC power interface 1 (7) and the DC power interface 2 (9) are used to input DC power.

3. The protection device for sensitive elements of a current stabilization control system according to claim 2, characterized in that, The number of digital controllers and drive modules (12) is set to two. The output terminals of the two digital controllers and drive modules (12) are electrically connected to the input terminal of the constant current PLC (13). The AC interface one (6) and DC interface one (7) are electrically connected to the upper digital controller and drive module (12). The AC interface two (8) and DC interface two (9) are electrically connected to the other digital controller and drive module (12).

4. The protection device for sensitive elements of a current stabilization control system according to claim 1, characterized in that, The fixing mechanism includes a back plate (15), a first insertion frame (16), a heat-conducting plate (17), a temperature sensor (18), a flip cover (19), a signal transmitter (20), a second insertion frame (21), and expansion bolts (22). The back plate (15) is fixed to the back of the flow control cabinet (1). The second insertion frame (21) is fixedly connected to the outside of the back plate (15), and the first insertion frame (16) is inserted into the inside of the back plate (15) and the second insertion frame (21).

5. The protection device for sensitive elements of a current stabilization control system according to claim 4, characterized in that, A heat-conducting plate (17) is provided on one side of the first insertion frame (16). One side of the heat-conducting plate (17) is located inside the flow control cabinet (1), and the other side of the heat-conducting plate (17) is located inside the first insertion frame (16). A temperature sensor (18) is fixedly connected to one side of the heat-conducting plate (17).

6. The protection device for sensitive elements of a current stabilization control system according to claim 5, characterized in that, A signal transmitter (20) is fixedly connected to one side inside the first (16) of the interlocking frame, and the signal transmitter (20) is electrically connected to the external alarm module.

7. The protection device for sensitive elements of a current stabilization control system according to claim 6, characterized in that, There are two sets of the two fitting frames (21), which are distributed on the upper and lower sides inside the back plate (15). The overlapping positions of the fitting frame one (16) and the fitting frame two (21) are fixed with expansion bolts (22).

8. The protection device for sensitive elements of a current stabilization control system according to claim 7, characterized in that, Expansion bolts (22) are provided on both the upper and lower sides of the first (16) and the second (21) of the fitting frame. The expansion bolts (22) are distributed at both ends of the upper and lower sides of the overlapping position of the first (16) and the second (21) of the fitting frame.

9. A protection device for sensitive elements of a current stabilization control system according to claim 1, characterized in that, The sliding door mechanism includes a slide rail (2) and a sliding door body (4). The slide rail (2) is distributed between the sliding door body (4) and the flow control cabinet (1). The sliding door body (4) and the slide rail (2) are combined to form a sliding door. Both the sliding door body (4) and the flow control cabinet (1) are glass door panels.

10. A protection device for sensitive elements of a current stabilization control system according to claim 5, characterized in that, A flip cover (19) is provided on the outside of the first fitting frame (16), and the flip cover (19) closes the interior of the first fitting frame (16).

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