A high-voltage capacitor power supply module with fault diagnosis function

By introducing a mercury expansion-triggered alarm and a cooling fan into the high-voltage capacitor power extraction module, the problem of the lack of fault diagnosis in the high-voltage capacitor power extraction module is solved, and real-time monitoring of capacitor temperature and safe operation of the equipment are realized.

CN224436475UActive Publication Date: 2026-06-30江苏华网融智科技有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
江苏华网融智科技有限公司
Filing Date
2025-06-27
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing high-voltage capacitor power supply modules lack effective fault diagnosis and timely alarm functions, and cannot detect abnormal thermal expansion of capacitors in time, leading to equipment failure and safety hazards.

Method used

A high-voltage capacitor power supply module with fault diagnosis function was designed. It uses the principle of thermal expansion of mercury to monitor the temperature change of the capacitor, triggers an alarm by triggering a buzzer, and is equipped with a cooling fan and a voltmeter to ensure the safety and normal operation of the equipment.

Benefits of technology

It enables real-time monitoring of capacitor temperature and timely alarm for faults, preventing equipment damage, improving equipment reliability and safety, extending service life, and facilitating maintenance personnel to understand voltage conditions.

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Abstract

This utility model relates to a high-voltage capacitor power extraction module with fault diagnosis function, belonging to the field of power technology. It includes a capacitor connector, a base fixedly connected to the bottom of the capacitor connector, a capacitor power extraction mechanism fixedly connected to the outside of the base, and an output terminal connection line fixedly connected to the outside of the capacitor power extraction mechanism. An alarm mechanism for sensing and triggering changes in capacitor temperature is provided on the outside of the base, and a trigger structure for the operating alarm mechanism is also provided on the outside of the base. This high-voltage capacitor power extraction module with fault diagnosis function, based on the principle of mercury thermal expansion, can monitor the temperature change of the capacitor connector in real time. When the temperature rises abnormally, a slider slides upward, causing a push-button switch to move upward and contact a buzzer, triggering the buzzer to sound an alarm, alerting maintenance personnel that the capacitor has abnormal thermal expansion and a fault exists. This allows maintenance personnel to take rapid measures, achieving the advantage of timely fault diagnosis.
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Description

Technical Field

[0001] This utility model relates to the field of power technology, specifically a high-voltage capacitor power extraction module with fault diagnosis function. Background Technology

[0002] A high-voltage capacitor bank is a device that extracts energy from high-voltage power lines. It converts high-voltage electricity into low-voltage electricity using components such as capacitors and voltage transformers, which then power electrical appliances. This type of device has wide applications in power systems, such as providing power to electricity metering and monitoring equipment.

[0003] In the application of high-voltage capacitor power supply modules, high-voltage capacitors generate heat during operation due to factors such as current flow and changes in ambient temperature, leading to thermal expansion. Excessive thermal expansion can cause damage to the internal structure of the capacitor, decreased insulation performance, and other faults, thus affecting the normal operation of the entire power supply module and potentially causing safety accidents. Existing high-voltage capacitor power supply modules lack effective fault diagnosis and timely alarm functions, failing to issue timely warnings when abnormal thermal expansion occurs, preventing maintenance personnel from taking appropriate measures. Therefore, this paper proposes a high-voltage capacitor power supply module with fault diagnosis capabilities to address the aforementioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a high-voltage capacitor power supply module with fault diagnosis function, which has the advantages of timely fault diagnosis and solves the problems mentioned in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-voltage capacitor power extraction module with fault diagnosis function includes a capacitor connector, a base fixedly connected to the bottom of the capacitor connector, a capacitor power extraction mechanism fixedly connected to the outside of the base, and an output terminal connection line fixedly connected to the outside of the capacitor power extraction mechanism. An alarm mechanism for sensing changes in capacitor temperature and triggering an alarm is provided on the outside of the base.

[0007] The alarm mechanism includes a fixed plate fixedly connected to the outside of the base, a top plate is provided on the top of the fixed plate, a buzzer is fixedly installed on the inner top wall of the top plate, a slide rod is slidably connected inside the fixed plate, a transmission plate is fixedly connected to the bottom end of the slide rod, and a push-button switch is fixedly connected to the top end of the slide rod.

[0008] The triggering structure includes a copper plate fixedly connected to the inside of the base and extending to its outside, and a transparent glass tube fixedly connected to the top of the copper plate. The inside of the transparent glass tube is filled with mercury, and a stopper plate is slidably connected inside the transparent glass tube. A stopper rod is fixedly connected to the top of the stopper plate.

[0009] Furthermore, a connecting column is fixedly connected between the fixing plate and the top plate, the sliding rod is a solid cylinder, and the push-button switch is located directly below the buzzer.

[0010] Furthermore, a return spring is fixedly connected between the push-button switch and the fixing plate, and the return spring is connected to the outside of the slide rod.

[0011] Furthermore, a sealing gasket is fixedly connected to the outside of the stopper plate, and the outer diameter of the stopper plate is adapted to the inner diameter of the transparent glass tube.

[0012] Furthermore, the stopper plate is located on the upper surface of the mercury, and the stopper rod is slidably connected inside the transparent glass tube and extends to its upper surface, and is in contact with the lower surface of the transmission plate.

[0013] Furthermore, a mounting shell is fixedly connected to the inner wall of the base, and a cooling fan is rotatably connected inside the mounting shell.

[0014] Furthermore, an insulating base plate is fixedly connected to the bottom of the base, and an insulating coating layer is applied to the bottom of the insulating base plate.

[0015] Furthermore, a voltmeter is fixedly mounted on the outside of the base, and the voltmeter is electrically connected to the output terminal.

[0016] Compared with the prior art, this utility model provides a high-voltage capacitor power supply module with fault diagnosis function, which has the following beneficial effects:

[0017] 1. This high-voltage capacitor power-taking module with fault diagnosis function can monitor the temperature change of the capacitor connection in real time by utilizing the principle of mercury thermal expansion. When the temperature rises abnormally, the mercury expands and pushes the stopper plate and stopper rod upward, which in turn pushes the transmission plate upward. The transmission plate drives the slide rod to slide upward within the fixed plate. When the slide rod slides upward, it causes the push-button switch to move upward and contact the buzzer, triggering the buzzer to sound an alarm. This alerts maintenance personnel that the capacitor has abnormal thermal expansion and a fault exists, enabling maintenance personnel to take quick measures to prevent the fault from escalating further, improving the reliability and safety of the equipment, and achieving the advantage of timely fault diagnosis.

[0018] 2. This high-voltage capacitor power supply module with fault diagnosis function is equipped with a reset spring to ensure that the equipment can automatically reset and return to normal operation after the fault is cleared. The cooling fan can effectively reduce the internal temperature of the module, reduce damage to capacitors and other components caused by excessive temperature, and extend the service life of the module. The voltage setting allows maintenance personnel to understand the output voltage of the module in real time, facilitates the timely detection of voltage abnormalities, and ensures the normal operation of the equipment. Attached Figure Description

[0019] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0020] Figure 2 This is a three-dimensional structural view of the alarm mechanism and triggering structure of this utility model;

[0021] Figure 3 This is a three-dimensional cross-sectional view of the alarm mechanism and triggering structure of this utility model.

[0022] In the diagram: 1. Capacitor connector; 2. Base; 3. Capacitor power extraction mechanism; 4. Output connection wire; 5. Alarm mechanism; 51. Fixing plate; 52. Connecting post; 53. Top plate; 54. Slide rod; 55. Transmission plate; 56. Push-button switch; 57. Return spring; 58. Buzzer; 6. Triggering structure; 61. Copper plate; 62. Transparent glass tube; 63. Mercury; 64. Plug plate; 65. Plug rod; 7. Mounting shell; 8. Cooling fan; 9. Voltmeter. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1 to 3 This embodiment of a high-voltage capacitor power supply module with fault diagnosis function includes a capacitor connector 1, a base 2 fixedly connected to the bottom of the capacitor connector 1, a capacitor power supply mechanism 3 fixedly connected to the outside of the base 2, and an output terminal connection line 4 fixedly connected to the outside of the capacitor power supply mechanism 3. An alarm mechanism 5 for sensing changes in capacitor temperature and triggering an alarm is provided on the outside of the base 2. A trigger structure 6 for the operation alarm mechanism 5 is provided on the outside of the base 2.

[0025] The alarm mechanism 5 includes a fixed plate 51 fixedly connected to the outside of the base 2. A top plate 53 is provided on the top of the fixed plate 51. A buzzer 58 is fixedly installed on the inner top wall of the top plate 53. A slide rod 54 is slidably connected inside the fixed plate 51. A transmission plate 55 is fixedly connected to the bottom end of the slide rod 54. A push-button switch 56 is fixedly connected to the top end of the slide rod 54.

[0026] Specifically, a connecting post 52 is fixedly connected between the fixed plate 51 and the top plate 53, the slide rod 54 is a solid cylinder, and the push-button switch 56 is located directly below the buzzer 58.

[0027] It should be noted that a return spring 57 is fixedly connected between the push-button switch 56 and the fixed plate 51, and the return spring 57 is connected to the outside of the slide rod 54. By setting the return spring 57 to be connected to the outside of the slide rod 54, when the triggering factor disappears, the slide rod 54, the transmission plate 55 and the push-button switch 56 can be reset, so that the alarm mechanism 5 returns to its initial state, improving the reliability and reusability of the alarm mechanism 5.

[0028] Please see Figures 1 to 3 In this embodiment, the triggering structure 6 includes a copper plate 61 fixedly connected to the inside of the base 2 and extending to its outside, and a transparent glass tube 62 fixedly connected to the top of the copper plate 61. Mercury 63 is disposed inside the transparent glass tube 62, and a stopper plate 64 is slidably connected inside the transparent glass tube 62. A stopper rod 65 is fixedly connected to the top of the stopper plate 64. Utilizing the principle of thermal expansion of mercury 63, when the temperature of the capacitor connector 1 rises, the mercury 63 expands, pushing the stopper plate 64 and the stopper rod 65 upwards, triggering the alarm mechanism 5.

[0029] The stopper plate 64 is externally fixed with a sealing gasket, and the outer diameter of the stopper plate 64 is adapted to the inner diameter of the transparent glass tube 62.

[0030] Specifically, the stopper plate 64 is located on the upper surface of the mercury 63, and the stopper rod 65 is slidably connected inside the transparent glass tube 62 and extends to its upper surface, and is in contact with the lower surface of the transmission plate 55. When the stopper rod 65 pushes the transmission plate 55, which in turn pushes the slide rod 54 upward, the push switch 56 is triggered, and the buzzer 58 emits an alarm signal to remind maintenance personnel that the equipment has malfunctioned. It can monitor the temperature change of the capacitor connector 1 in real time, detect overheating faults in a timely manner, and issue an alarm to avoid equipment damage or safety accidents caused by overheating.

[0031] Please see Figure 1In this embodiment, a mounting shell 7 is fixedly connected to the inner wall of the base 2, and a cooling fan 8 is rotatably connected inside the mounting shell 7. An insulating base plate is fixedly connected to the bottom of the base 2, and an insulating coating layer is applied to the bottom of the insulating base plate. The cooling fan 8 is electrically connected to the output terminal of the capacitor power extraction mechanism 3 via wires. During capacitor power extraction, the cooling fan 8 is activated to dissipate heat from the inside of the module, reduce the capacitor temperature, and decrease the risk of failure due to overheating.

[0032] A voltmeter 9 is fixedly mounted on the external part of the base 2, and the voltmeter 9 is electrically connected to the output terminal connection line 4. The voltmeter 9 monitors the output voltage in real time, allowing maintenance personnel to understand the module's output voltage status and determine whether the module is functioning correctly by observing the reading on the voltmeter 9.

[0033] The working principle of the above embodiments is as follows:

[0034] In use, electrical energy is obtained from the high-voltage electric field and transferred to the output connection line 4 through the capacitor connector 1, providing a stable power supply circuit for external devices. When the high-voltage capacitor generates heat due to factors such as current flow and changes in ambient temperature, the heat is transferred to the copper plate 61. Due to the good thermal conductivity of the copper plate 61, its temperature rises, causing the mercury 63 inside the transparent glass tube 62 to expand. The expansion of the mercury 63 pushes the stopper plate 64 to slide upward inside the transparent glass tube 62. The stopper plate 64 drives the stopper rod 65 to move upward synchronously. The transmission plate 55 is pushed upward, and the transmission plate 55 drives the slide rod 54 to slide upward within the fixed plate 51. The upward sliding of the slide rod 54 causes the push-button switch 56 to move upward. When the push-button switch 56 moves to contact and trigger the buzzer 58, the buzzer 58 sounds an alarm to remind maintenance personnel that the capacitor has abnormal thermal expansion and there is a fault. When the capacitor temperature decreases, the mercury 63 contracts. Under the action of the reset spring 57, the slide rod 54, transmission plate 55, stop rod 65 and stop plate 64 reset, the push-button switch 56 separates from the buzzer 58, and the buzzer 58 stops sounding the alarm.

[0035] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.

[0036] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] 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.

[0038] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-voltage capacitor power extraction module with fault diagnosis function, characterized in that: It includes a capacitor connector (1), a base (2) fixedly connected to the bottom of the capacitor connector (1), a capacitor power taking mechanism (3) fixedly connected to the outside of the base (2), and an output terminal connecting line (4) fixedly connected to the outside of the capacitor power taking mechanism (3). The outside of the base (2) is provided with an alarm mechanism (5) for sensing changes in capacitor temperature and issuing an alarm. The outside of the base (2) is provided with a triggering structure (6) for operating the alarm mechanism (5). The alarm mechanism (5) includes a fixed plate (51) fixedly connected to the outside of the base (2). A top plate (53) is provided on the top of the fixed plate (51). A buzzer (58) is fixedly installed on the inner top wall of the top plate (53). A slide rod (54) is slidably connected inside the fixed plate (51). A transmission plate (55) is fixedly connected to the bottom end of the slide rod (54). A push-button switch (56) is fixedly connected to the top end of the slide rod (54). The triggering structure (6) includes a copper plate (61) fixedly connected to the inside of the base (2) and extending to the outside therefrom, and a transparent glass tube (62) fixedly connected to the top of the copper plate (61). The inside of the transparent glass tube (62) is filled with mercury (63). A stopper plate (64) is slidably connected inside the transparent glass tube (62). A stopper rod (65) is fixedly connected to the top of the stopper plate (64).

2. The high-voltage capacitor power extraction module with fault diagnosis function according to claim 1, characterized in that: A connecting column (52) is fixedly connected between the fixed plate (51) and the top plate (53). The slide rod (54) is a solid cylinder. The push-button switch (56) is located directly below the buzzer (58).

3. A high-voltage capacitor power extraction module with fault diagnosis function according to claim 1, characterized in that: A reset spring (57) is fixedly connected between the push-button switch (56) and the fixing plate (51), and the reset spring (57) is connected around the outside of the slide bar (54).

4. A high-voltage capacitor power extraction module with fault diagnosis function according to claim 1, characterized in that: The outer side of the stopper plate (64) is fixedly connected with a sealing gasket, and the outer diameter of the stopper plate (64) is adapted to the inner diameter of the transparent glass tube (62).

5. A high-voltage capacitor power extraction module with fault diagnosis function according to claim 1, characterized in that: The stopper plate (64) is located on the upper surface of the mercury (63), and the stopper rod (65) is slidably connected to the inside of the transparent glass tube (62) and extends to its upper surface, and is in contact with the lower surface of the transmission plate (55).

6. A high-voltage capacitor power extraction module with fault diagnosis function according to claim 1, characterized in that: A mounting shell (7) is fixedly connected to the inner wall of the base (2), and a cooling fan (8) is rotatably connected inside the mounting shell (7).

7. A high-voltage capacitor power extraction module with fault diagnosis function according to claim 1, characterized in that: An insulating base plate is fixedly connected to the bottom of the base (2), and an insulating coating layer is coated on the bottom of the insulating base plate.

8. A high-voltage capacitor power extraction module with fault diagnosis function according to claim 1, characterized in that: A voltmeter (9) is fixedly installed on the outside of the base (2), and the voltmeter (9) is electrically connected to the output terminal connection line (4).