High-voltage power capacitor with insulating oil liquid level detection function

By introducing a floating ball and transmission linkage touch switch design into high-voltage power capacitors, real-time detection and alarm of insulation oil level is achieved, the problem of maintenance difficulties of traditional capacitors is solved, the safety and life of the capacitor is improved, and the maintenance cost is reduced.

CN223245412UActive Publication Date: 2025-08-19HANERJUE ELECTRIC (JIANGSU) CO LTD
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Patent Information

Application Number
CN202421869386.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-05
Publication Date
2025-08-19
Estimated Expiration
2034-08-05

AI Technical Summary

Technical Problem

Traditional high-voltage power capacitors lack effective liquid level monitoring methods, resulting in high maintenance work intensity and high cost, and abnormal liquid level failure in time may lead to premature damage to the capacitor.

Method used

A high-voltage power capacitor with insulating oil level detection function was designed. Through the linkage of the float ball and the transmission, the instant alarm is realized, the liquid level detection process is simplified, and the abnormal situation is promptly feedbacked using the alarm light.

Benefits of technology

It improves the operating safety and system stability of the capacitor, reduces the maintenance work intensity and cost, extends the service life of the capacitor, reduces the risk of unplanned downtime, and improves the detection timeliness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of capacitors, in particular to a high-voltage power capacitor with an insulating oil level detection function, which comprises a capacitor body and a mounting component, a connecting shaft is arranged at a through hole of the capacitor body, a floating ball is arranged at one end of the connecting shaft through a connecting component, and the floating ball is positioned in a cavity of the capacitor body. The installation assembly is arranged on the capacitor body, a moving part is arranged in the installation assembly, touch switches are symmetrically arranged at the two ends of the moving part, the transmission part is located between the two sets of touch switches, an alarm lamp is arranged on the installation assembly, and the alarm lamp is in electric control connection with the two sets of touch switches. The maintenance cost is reduced, the detection timeliness is improved, and the life cycle is prolonged.
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Description

Technical Field

[0001] The utility model relates to the technical field of capacitors, in particular to a high-voltage power capacitor with an insulating oil level detection function. Background Art

[0002] High-voltage power capacitors are an integral component of power systems, primarily used for functions such as reactive power compensation, voltage control, and energy storage. In high-voltage capacitors, insulating oil not only serves as an insulating medium but also effectively cools the internal components, preventing overheating. However, traditional high-voltage power capacitors lack effective fluid level monitoring, resulting in intensive and costly maintenance. In particular, if fluid level anomalies are not detected promptly, they can lead to premature failure, necessitating frequent replacement and increasing the equipment's lifecycle cost. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a high-voltage power capacitor with an insulating oil level detection function, which reduces maintenance costs, improves detection timeliness, and increases life cycle.

[0004] The utility model provides a high-voltage power capacitor with an insulating oil level detection function, comprising:

[0005] The capacitor body and the mounting assembly are provided with a connecting shaft at the through hole of the capacitor body, a float is provided at one end of the connecting shaft through the connecting assembly, the float is located inside the cavity of the capacitor body, a transmission part is provided at the other end of the connecting shaft, the mounting assembly is provided on the capacitor body, a moving part is provided inside the mounting assembly, touch switches are symmetrically provided at both ends of the moving part, the transmission part is located in the middle of the two groups of touch switches, an alarm light is provided on the mounting assembly, and the alarm light is electrically controlled and connected to the two groups of touch switches.

[0006] Furthermore, a connecting column is plugged in and out of the float mounting hole, the connecting column is coaxially arranged on the connecting shaft, a threaded rod is rotatably arranged inside the float mounting hole, and the threaded rod is matched with the threaded inner cavity of the connecting column for transmission connection.

[0007] Preferably, a polygonal adjustment hole is provided at the top of the connecting column.

[0008] Furthermore, a counterweight block is coaxially threaded on the threaded rod.

[0009] Preferably, the mounting assembly includes a mounting part arranged on the capacitor body, a guide groove is provided on the mounting part, a conductive part is provided on the movable part, the conductive part is provided inside the guide groove of the mounting part, and an adjustment assembly is provided on the mounting part, which is used to adjust the connection position between the conductive part and the mounting part.

[0010] Furthermore, the adjustment component includes a threaded column arranged in the axial hole of the mounting member, and the threaded column is arranged at the threaded through hole of the conductive member.

[0011] Preferably, an adjusting cap is coaxially arranged on the threaded column.

[0012] Furthermore, the other end of the threaded column is rotatably disposed on the capacitor body.

[0013] Preferably, a notch is provided on one side of the mounting piece, and a sealing cover is provided at the notch of the mounting piece.

[0014] Furthermore, a fixing seat is provided on the capacitor body.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: through the float ball arranged in the capacitor body and the external transmission member, the insulating oil level change can be detected in real time. Once the insulating oil level drops below the preset threshold, the float ball drops with the liquid level, and the transmission member is driven to move through the connecting shaft, triggering the touch switch, thereby activating the alarm light to realize instant alarm, which effectively prevents the risk of capacitor overheating, short circuit or explosion caused by insufficient insulating oil, greatly improving the safety of capacitor operation. The linkage design of the moving member and the touch switch simplifies the liquid level detection process, eliminates the need for frequent manual inspections by maintenance personnel, and reduces the intensity of maintenance work. The timely feedback of the alarm light ensures the pertinence and timeliness of maintenance work, avoids unplanned shutdowns, and improves the overall operating efficiency of the power system. By continuously monitoring the insulating oil level, it can timely remind people to replenish insulating oil, avoid early damage to capacitors caused by insufficient oil, effectively extend the service life of the capacitor body, and reduce the cost of equipment replacement. The electrical control connection between the alarm light and the touch switch ensures a quick response in the event of abnormal liquid level, enhances the stability and reliability of the entire power system, reduces the potential risk of power outages, reduces maintenance costs, improves detection timeliness, and increases the life cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view structural diagram of the present utility model;

[0017] Figure 2 This is an axonometric structural diagram of the present utility model;

[0018] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the parts structure of the utility model;

[0020] Markings in the accompanying drawings: 1. Capacitor body; 2. Connecting shaft; 3. Float; 4. Transmission part; 5. Moving part; 6. Touch switch; 7. Warning light; 8. Connecting column; 9. Threaded rod; 10. Counterweight; 11. Mounting part; 12. Conducting part; 13. Threaded column; 14. Adjusting cap; 15. Sealing cover; 16. Fixed seat. DETAILED DESCRIPTION

[0021] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] like Figures 1 to 4 As shown, the high-voltage power capacitor with insulating oil level detection function of the utility model includes:

[0023] The capacitor body 1 and the mounting assembly, a connecting shaft 2 is provided at the through hole of the capacitor body 1, a float 3 is provided at one end of the connecting shaft 2 through the connecting assembly, the float 3 is located inside the cavity of the capacitor body 1, a transmission part 4 is provided at the other end of the connecting shaft 2, the mounting assembly is provided on the capacitor body 1, a moving part 5 is provided inside the mounting assembly, touch switches 6 are symmetrically provided at both ends of the moving part 5, the transmission part 4 is located in the middle of the two groups of touch switches 6, an alarm light 7 is provided on the mounting assembly, and the alarm light 7 is electrically controlled and connected to the two groups of touch switches 6; by means of the float 3 provided in the capacitor body 1 and the external transmission part 4, changes in the insulating oil level can be detected in real time. Once the insulating oil level drops below the preset threshold, the float 3 drops with the liquid level, drives the transmission part 4 to move through the connecting shaft 2, triggers the touch switch 6, and then activates the alarm light 7, realizing immediate alarm, which effectively prevents the occurrence of faults caused by insufficient insulating oil. The risk of capacitor overheating, short circuit or explosion is reduced, which greatly improves the safety of capacitor operation. The linkage design of the moving part 5 and the touch switch 6 simplifies the liquid level detection process, so that maintenance personnel do not need to frequently conduct manual inspections, reducing the intensity and cost of maintenance work. The timely feedback of the alarm light 7 ensures the pertinence and timeliness of maintenance work, avoids unplanned shutdowns, and improves the overall operation efficiency of the power system. By continuously monitoring the insulating oil level, it can timely remind to replenish insulating oil, avoid early damage to the capacitor caused by insufficient oil, effectively extend the service life of the capacitor body 1, and reduce the cost of equipment replacement. The electrical control connection between the alarm light 7 and the touch switch 6 ensures a rapid response in the event of abnormal liquid level, enhances the stability and reliability of the entire power system, reduces the potential risk of power outages, reduces maintenance costs, improves detection timeliness, and increases the life cycle.

[0024] like Figures 1 to 4As shown, as a preferred solution, a connecting column 8 is provided inside the mounting hole of the float 3 for plugging and unplugging, and the connecting column 8 is coaxially arranged on the connecting shaft 2. A threaded rod 9 is rotatably provided inside the mounting hole of the float 3, and the threaded rod 9 cooperates with the threaded inner cavity of the connecting column 8 for transmission connection, and a multi-faceted adjustment hole is provided on the top of the connecting column 8; the connection position of the float 3 and the connecting shaft 2 can be fine-tuned through the connecting column 8, and the position of the float 3 and the connecting column 8 can be stably adjusted through the threaded connection between the threaded rod 9 and the connecting column 8, and has a self-locking function. The adaptability of the liquid level is increased by adjusting the distance between the float 3 and the connecting shaft 2. The design of the multi-faceted adjustment hole allows the operator to use special tools for fine adjustment to ensure that the float 3 is accurately triggered at different liquid level thresholds, thereby enhancing the adaptability and flexibility of the system. The precise liquid level detection and easy adjustment characteristics enable the capacitor to operate under ideal working conditions, avoiding equipment damage caused by abnormal liquid level, thereby extending the service life of the capacitor body 1.

[0025] like Figures 1 to 4 As shown, as a preferred solution, a counterweight 10 is provided on the coaxial thread of the threaded rod 9; the counterweight 10 is provided on the threaded rod 9 so that the connecting shaft 2 can overcome the friction with the capacitor body 1 under the action of gravity, thereby maintaining stable contact between the float and the liquid surface. It should be noted here that the counterweight 10 can be selected and replaced according to the actual friction conditions.

[0026] like Figures 1 to 4 As shown, as a preferred solution, the mounting assembly includes a mounting part 11 arranged on the capacitor body 1, a guide groove is provided on the mounting part 11, a conductive part 12 is provided on the movable part 5, the conductive part 12 is arranged inside the guide groove of the mounting part 11, and an adjustment assembly is provided on the mounting part 11, and the adjustment assembly is used to adjust the connection position of the conductive part 12 and the mounting part 11; the guide groove on the mounting part 11 provides a precise guide path for the conductive part 12, ensuring that the position of the movable part 5 is adjusted and moved smoothly, thereby improving the accuracy of the touch switch 6 being triggered. It needs to be explained here that the movable part 5 drives the touch switch 6 to move in position, further adapting to the liquid level requirements and increasing adaptability.

[0027] like Figures 1 to 4As shown, as a preferred solution, the adjustment component includes a threaded column 13 arranged in the axial hole of the mounting member 11, the threaded column 13 is arranged at the threaded through hole of the conductive member 12, and the other end of the threaded column 13 is rotatably arranged on the capacitor body 1, and an adjustment cap 14 is coaxially arranged on the threaded column 13; the cooperation between the threaded column 13 and the threaded through hole of the conductive member 12 allows the operator to fine-tune the position of the conductive member 12 in the guide groove by rotating the adjustment cap 14, thereby accurately controlling the relative position of the moving member 5 and the touch switch 6, ensuring the accurate triggering of the touch switch 6 at different liquid level thresholds, and the rotation of the threaded column 13 is set on the capacitor body 1, which ensures the stability of the system during the adjustment process, avoids the system shaking or inaccurate positioning caused by the adjustment action, and enhances the reliability and consistency of the entire liquid level detection system.

[0028] like Figures 1 to 4 As shown, as a preferred solution, a notch is provided on one side of the mounting member 11, and a sealing cover 15 is provided at the notch of the mounting member 11; the design of the sealing cover 15 effectively protects the moving part 5, the conductive part 12, the touch switch 6 and other sensitive components inside the mounting assembly from the influence of external environmental factors, such as dust, moisture, corrosive gas, etc., thereby extending the service life of these components and ensuring the long-term stable operation of the system. The notch is provided on the mounting member 11 to facilitate the disassembly and maintenance of the internal parts.

[0029] like Figures 1 to 4 As shown, as a preferred solution, a fixing seat 16 is provided on the capacitor body 1; through the fixing seat 16, the installer can quickly and accurately fix the capacitor in a predetermined position without the need for a complex supporting structure, thereby simplifying the installation process and saving installation time and cost.

[0030] like Figures 1 to 4 As shown, as a preferred solution, its working process is as follows:

[0031] When the insulating oil level inside the capacitor body 1 changes, the float 3 will float accordingly. The up and down movement of the float 3 is transmitted to the external transmission member 4 through the connecting shaft 2. After the transmission member 4 and the touch switch 6 are triggered, an electrical signal will be immediately sent to the alarm light 7. The alarm light 7 will then start up and emit an audible and visual alarm signal to remind maintenance personnel that the liquid level is abnormal and measures need to be taken to replenish the insulating oil.

[0032] The high-voltage power capacitor with insulating oil level detection function of the present invention has common mechanical installation, connection or setting methods, and any method that can achieve its beneficial effects can be implemented.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A high-voltage power capacitor with an insulating oil level detection function, characterized in that: include: A capacitor body and a mounting assembly, wherein a connecting shaft is provided at the through hole of the capacitor body, a float is provided at one end of the connecting shaft through the connecting assembly, the float is located inside the cavity of the capacitor body, a transmission member is provided at the other end of the connecting shaft, the mounting assembly is provided on the capacitor body, a moving member is provided inside the mounting assembly, touch switches are symmetrically provided at both ends of the moving member, the transmission member is located in the middle of the two groups of touch switches, an alarm light is provided on the mounting assembly, and the alarm light is electrically controlled and connected to the two groups of touch switches.

2. The high-voltage power capacitor with insulating oil level detection function according to claim 1, characterized in that: A connecting column is plugged in and out of the float installation hole, and the connecting column is coaxially arranged on the connecting shaft. A threaded rod is rotatably arranged inside the float installation hole, and the threaded rod is matched with the threaded inner cavity of the connecting column for transmission connection.

3. The high-voltage power capacitor with insulating oil level detection function according to claim 2, characterized in that: The top of the connecting column is provided with a multi-faceted adjustment hole.

4. The high-voltage power capacitor with insulating oil level detection function according to claim 2, characterized in that: A counterweight block is coaxially threaded on the threaded rod.

5. The high-voltage power capacitor with insulating oil level detection function according to claim 1, characterized in that: The mounting assembly includes a mounting part arranged on the capacitor body, a guide groove is provided on the mounting part, a conductive part is provided on the movable part, the conductive part is arranged inside the guide groove of the mounting part, and an adjustment assembly is provided on the mounting part, and the adjustment assembly is used to adjust the connection position between the conductive part and the mounting part.

6. The high-voltage power capacitor with insulating oil level detection function according to claim 5, characterized in that: The adjusting component includes a threaded column arranged in the axial hole of the mounting member, and the threaded column is arranged at the threaded through hole of the conducting member.

7. The high-voltage power capacitor with insulating oil level detection function according to claim 6, characterized in that: An adjusting cap is coaxially arranged on the threaded column.

8. The high-voltage power capacitor with insulating oil level detection function according to claim 6, characterized in that: The other end of the threaded column is rotatably arranged on the capacitor body.

9. The high-voltage power capacitor with insulating oil level detection function according to claim 5, characterized in that: A notch is provided on one side of the mounting piece, and a sealing cover is provided at the notch of the mounting piece.

10. The high-voltage power capacitor with insulating oil level detection function according to claim 1, characterized in that: A fixing seat is provided on the capacitor body.