Capacitor easy to plug and unplug

Abstract

The utility model relates to the technical field of capacitors, and discloses an easy-to-plug capacitor, which comprises a capacitor body, a wiring terminal is arranged on a cover plate of the capacitor body, an insulating block A positioned on the outer side of the cover plate is sleeved on the outer side surface of the wiring terminal, a binding post butted with the wiring terminal is limited at the top of the insulating block A, and a butting terminal is sleeved on the binding post. The insulating block A is connected with an insulating block B which is used for pressing and butting the butting terminal on the binding post in a pluggable manner; after the insulation block B and the insulation block A are buckled in a matched mode, the insulation spring on the inner top wall of the insulation block B is compressed, the insulation pressing block at the bottom of the insulation spring is pressed and positioned on the butt-joint terminal, and then the butt-joint terminal and the binding post are pressed together. And rapid connection and disconnection of the butt joint terminal and the binding post are realized. According to the design, the mounting and dismounting processes are simplified, tools are not needed, and the working efficiency is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of capacitor technology, specifically relating to an easy-to-plug capacitor. Background Technology

[0002] In power systems, capacitors serve as crucial reactive power compensation devices, widely used to improve the power factor of the grid and enhance voltage quality. Capacitors typically require connection to controllers or other equipment for switching control. Traditional capacitor connections generally use terminals and mating terminals secured with nuts and washers. However, this method presents challenges in installation, disassembly, and maintenance, impacting efficiency and safety.

[0003] Traditional connection methods require the use of nuts and washers for tightening. Operators must frequently tighten and loosen these nuts during installation, disassembly, and maintenance, making the process cumbersome and inefficient. Existing connection technologies require tools for tightening and loosening, making connection and maintenance less convenient and faster for operators. Tightening nuts and washers demands significant effort and patience, resulting in high labor intensity. Furthermore, the precise control of nut and washer placement and tightness during operation increases the risk of misoperation, potentially affecting capacitor operation. In traditional connection methods, exposed terminals and mating terminals pose a risk of electric shock to operators during connection and maintenance.

[0004] In view of this, we propose an easy-pluggable capacitor to solve the above problems. Utility Model Content

[0005] The present invention aims to solve the technical problem in the prior art where, when wiring capacitors, the terminals and mating terminals are locked together using nuts and washers. This connection method presents certain operational difficulties during installation, disassembly, and maintenance, affecting work efficiency and safety.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An easy-to-plug capacitor includes a capacitor body, a cover plate of the capacitor body is provided with a terminal block, an insulating block A located outside the cover plate is sleeved on the outer side of the terminal block, a terminal post that mates with the terminal block is limited at the top of the insulating block A, a mating terminal is sleeved on the terminal post, and an insulating block B is pluggably connected to the insulating block A to press the mating terminal tightly against the terminal post.

[0008] After insulating block B and insulating block A are engaged and fastened together, the insulating spring on the inner top wall of insulating block B is compressed, pressing and positioning the insulating pressure block at the bottom of the insulating spring onto the mating terminal, thereby pressing the mating terminal and the terminal block together.

[0009] Preferably, the inner side of the cover plate is fitted with an insulating block C for limiting the insertion of the wiring terminal. The insulating block C is provided with a limiting groove, an insertion hole and a mounting hole.

[0010] The design of the limiting groove, insertion hole, and mounting hole in insulating block C provides precise positioning and fixation, ensuring the stability of the terminals. The presence of insulating block C increases the overall mechanical strength of the capacitor, improving its impact and vibration resistance.

[0011] Preferably, the terminal block includes a welding end that is inserted into the limiting groove and welded to the positive and negative terminals of the capacitor, and a threaded end that passes through the insertion hole and is screwed to the external thread of the terminal block. The threaded end is inserted into the inside of the insulating block A.

[0012] The terminal block includes soldered and screwed ends. This design ensures a reliable connection to the positive and negative terminals of the capacitor, guaranteeing the stability of the electrical connection. The through-hole design of the screwed end allows the terminal block to be firmly connected to the insulating block A, preventing loosening at the connection point.

[0013] Preferably, insulating block C, the cover plate, and insulating block A are screwed together using bolts that pass through the mounting hole and the cover plate. This screwed connection provides a robust assembly structure, increasing the overall reliability of the capacitor. This fixing method also helps prevent displacement of the connecting parts due to environmental factors such as temperature changes.

[0014] Preferably, insulating block A has a U-shaped groove for inserting mating insulating block B. The U-shaped groove design facilitates the insertion and fixing of insulating block B, simplifies the installation process, and improves connection efficiency.

[0015] Preferably, insulating block B is fastened to insulating block A via elastic clips on both sides that engage with the clips on both sides of insulating block A. The elastic clip design provides a quick and secure connection without the need for additional tools, reducing installation time. This fastening method also absorbs vibration to some extent, improving the durability of the connection.

[0016] Preferably, the lower end of insulating block B has a U-shaped opening for the connecting wire on the mating terminal to pass through. Insulating block A, located within the U-shaped groove, has an arc-shaped support block that is lifted by a lifting spring to clamp the connecting wire within the U-shaped opening; the lifting spring is located in a mounting groove on insulating block A. The design of the U-shaped opening, arc-shaped support block, and lifting spring ensures stable fixation of the connecting wire, preventing it from falling off during vibration or impact. This design also helps protect the connecting wire from external physical damage.

[0017] Preferably, the terminals, binding posts, and mating terminals are all made of conductive aluminum. Using aluminum, with its excellent conductivity, ensures a low-resistance connection between the capacitor and the external circuit, reducing energy loss. The corrosion resistance and lightweight properties of aluminum help improve the capacitor's lifespan and reliability in harsh environments.

[0018] Compared with existing technologies, the technical effects and advantages of this utility model are:

[0019] This easy-plug capacitor achieves quick connection and disconnection of the terminals and posts through the interlocking of insulating blocks A and B, and the compression of the insulating spring. This design simplifies the installation and disassembly process, eliminating the need for tools and greatly improving work efficiency. The limiting effect of insulating block A and the elastic snap-fit ​​design of insulating block B ensure the stability and reliability of the connection, while reducing the risk of connection loosening due to vibration or impact.

[0020] This easy-plug capacitor utilizes insulating blocks A, B, and C made of rigid insulating material, providing high safety and reliability while exhibiting excellent mechanical and chemical properties. The arc-shaped support and lifting spring design ensure the connecting wires are securely clamped within the U-shaped opening, preventing them from falling off or moving during operation. This structure guarantees long-term stable operation of the capacitor in various environments, reduces wear caused by frequent disassembly, and extends the service life of the capacitor and its connectors.

[0021] The easily pluggable capacitor's insulation design reduces the risk of electric shock and the possibility of misoperation. Compared to traditional connection methods, this capacitor design reduces labor intensity, saves installation space, and lowers maintenance costs. Due to its more robust connection, the capacitor maintains good connection performance even under harsh environments such as vibration and shock, improving its reliability and stability and providing safer and more efficient operation for the power system. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2This is a first-view view of insulating block A, insulating block B and insulating block C of this utility model;

[0024] Figure 3 This is a second-view view of insulating block A, insulating block B, and insulating block C of this utility model;

[0025] Figure 4 This utility model Figure 2 Exploded view;

[0026] Figure 5 This is a schematic diagram of the structure of insulating block B of this utility model;

[0027] Figure 6 This is a main sectional view of insulating block B of this utility model;

[0028] Figure 7 This is a schematic diagram of the structure of insulating block A of this utility model;

[0029] Figure 8 This is a schematic diagram of the structure of the insulating block C of this utility model;

[0030] Figure 9 This is a schematic diagram of the structure of the wiring terminal of this utility model.

[0031] In the diagram: 1. Capacitor body; 2. Cover plate; 3. Terminal block; 4. Insulating block A; 5. Terminal post; 6. Connecting terminal; 7. Insulating block B; 8. Insulating spring; 9. Insulating pressure block; 10. Insulating block C; 11. Limiting groove; 12. Through hole; 13. Mounting hole; 14. Welding end; 15. Screw end; 16. U-shaped groove; 17. Elastic buckle; 18. Buckle groove; 19. U-shaped opening; 20. Arc-shaped support block; 21. Connecting wire. Detailed Implementation

[0032] 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.

[0033] The following combination Figures 1 to 9 This application will be described in further detail.

[0034] This application discloses an easy-to-plug capacitor, including a capacitor body 1. A terminal block 3 is provided on the cover plate 2 of the capacitor body 1. An insulating block A4 located outside the cover plate 2 is sleeved on the outer side of the terminal block 3. A terminal post 5 that mates with the terminal block 3 is limited on the top of the insulating block A4. A mating terminal 6 is sleeved on the terminal post 5. The terminal block 3, the terminal post 5, and the mating terminal 6 are all made of conductive aluminum.

[0035] The inner side of the cover plate 2 is fitted with the terminal block 3 to limit the insertion of the insulating block C10. The insulating block C10 is provided with a limiting groove 11, an insertion hole 12 and a mounting hole 13. The insulating block C10, the cover plate 2 and the insulating block A4 are screwed together by bolts that pass through the mounting hole 13 and the cover plate 2.

[0036] The terminal block 3 includes a welding end 14 that is inserted into the limiting groove 11 and welded to the positive and negative terminals of the capacitor, and a threaded end 15 that passes through the insertion hole 12 and is threaded to the external thread of the terminal block 5. The threaded end 15 is inserted into the inside of the insulating block A4.

[0037] The use of insulating block A4 isolates terminal 3 from the external environment, improving electrical safety. The U-shaped groove 16 and snap-fit ​​groove 18 on insulating block A4 facilitate the plug-in connection of insulating block B7, simplifying the installation and disassembly process. The fixing method of insulating block A4 (fixed to cover plate 2 and insulating block C10 by bolts) ensures the stability and durability of the overall structure.

[0038] An insulating block B7 is pluggably connected to the insulating block A4 to press the mating terminal 6 against the terminal post 5; the insulating block A4 is provided with a U-shaped groove 16 for inserting the mating insulating block B7. The insulating block B7 is fastened to the insulating block A4 by the elastic buckles 17 on both sides of its sides engaging with the buckle grooves 18 on both sides of the insulating block A4.

[0039] After insulating block B7 and insulating block A4 are engaged and fastened together, the insulating spring 8 on the inner top wall of insulating block B7 is compressed, pressing the insulating pressure block 9 at the bottom of the insulating spring 8 onto the mating terminal 6, thereby pressing the mating terminal 6 and the terminal 5 together.

[0040] The plug-in connection and elastic snap-fit ​​design of insulating block B7 allow the mating terminal 6 to be quickly pressed onto the terminal block 5 without the need for tools, improving connection efficiency. The compression of the insulating spring 8 and the use of the insulating clamping block 9 provide stable clamping force, ensuring a reliable connection between the mating terminal 6 and the terminal block 5. The design of insulating block B7 reduces connection loosening caused by vibration or impact, enhancing the environmental adaptability of the capacitor.

[0041] The lower end of the insulating block B7 has a U-shaped opening 19 for the connecting wire 21 on the mating terminal 6 to be inserted. The insulating block A4 is provided with an arc-shaped support block 20 that is lifted by a lifting spring and clamps the connecting wire 21 in the U-shaped opening 19. The lifting spring is located in the mounting groove on the insulating block A4.

[0042] The U-shaped opening 19, in conjunction with the connecting wire 21 on the mating terminal 6, facilitates the installation of the connecting wire 21 and protects it from damage. The arc-shaped support block 20 and the lifting spring design ensure that the connecting wire 21 is securely clamped within the U-shaped opening 19, preventing it from falling off or moving during operation. The lifting spring ensures that the connecting wire 21 maintains a stable connection even under external forces, improving connection reliability.

[0043] Insulating blocks A4, B7, and C10 are typically made of rigid insulating materials, such as epoxy resin, phenolic resin, and polyimide. These materials provide high safety and reliability in easy-to-plug capacitors, while also possessing good mechanical and chemical properties, ensuring long-term stable operation of the capacitors in various environments.

[0044] Compared to traditional methods that require nuts and washers for tightening, the easy-plug capacitor allows for rapid connection and disconnection of the mating terminal 6 and the terminal block 5 via the snap-fit ​​of insulating blocks A4 and B7 and the compression of the insulating spring 8, significantly improving installation and disassembly efficiency. Because the easy-plug capacitor's design simplifies the connection process, eliminating the need for tools for tightening or loosening, operators can perform connection and maintenance work more easily and quickly.

[0045] Traditional connection methods require considerable force and patience to tighten nuts and washers, but the design of easy-plug capacitors reduces this labor intensity. The insulating block design reduces the possibility of misoperation, and the use of insulating material also reduces the risk of electric shock. Because no additional fasteners are needed, the design of easy-plug capacitors is more compact, helping to save installation space. The design of easy-plug capacitors reduces wear caused by frequent disassembly, thereby extending the lifespan of the capacitor and its connections and reducing maintenance costs. Due to the more robust connection, easy-plug capacitors maintain good connection performance even in harsh environments such as vibration and shock, improving the reliability and stability of the capacitor.

[0046] In summary, this easy-plug capacitor design improves installation efficiency and connection reliability, reduces maintenance costs, and also enhances operational safety and environmental adaptability. These advantages make this capacitor a promising candidate for widespread application in power systems.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plug-in capacitor comprising a capacitor body (1), a cover plate (2) of the capacitor body (1) being provided with a terminal (3), characterized in that: An insulating block A (4) located outside the cover plate (2) is sleeved on the outer side of the terminal (3). The top of the insulating block A (4) is limited by a terminal post (5) that is connected to the terminal (3). A mating terminal (6) is sleeved on the terminal post (5). An insulating block B (7) is plugged into the insulating block A (4) to press the mating terminal (6) onto the terminal post (5). After the insulating block B (7) and the insulating block A (4) are engaged and fastened together, the insulating spring (8) on the inner top wall of the insulating block B (7) is compressed, and the insulating pressure block (9) at the bottom of the insulating spring (8) is pressed and positioned on the docking terminal (6), thereby pressing the docking terminal (6) and the terminal post (5) together.

2. The pluggable capacitor according to claim 1, characterized in that: The inner side of the cover plate (2) is fitted with the wiring terminal (3) to limit the insertion of the insulating block C (10). The insulating block C (10) is provided with a limiting groove (11), an insertion hole (12) and a mounting hole (13).

3. An easy-plug capacitor according to claim 2, wherein: The terminal block (3) includes a welding end (14) that is inserted into the limiting groove (11) and welded to the positive and negative poles of the capacitor, and a screw end (15) that is threaded through the through hole (12) and threaded to the external thread of the terminal block (5). The screw end (15) is inserted into the inner side of the insulating block A (4).

4. An easy-plug capacitor according to claim 3, wherein: Insulating block C (10) is bolted together with the cover plate (2) and the insulating block A (4) by bolts that pass through the mounting hole (13) and the cover plate (2).

5. An easy-plug capacitor according to claim 1, wherein: The insulating block A (4) is provided with a U-shaped groove (16) for inserting the mating insulating block B (7).

6. An easy-plug capacitor according to claim 1, wherein: Insulating block B (7) is fastened to insulating block A (4) by means of elastic buckles (17) on both sides of its sides and buckle grooves (18) on both sides of its sides.

7. An easy-plug capacitor according to claim 6, wherein: The lower end of the insulating block B (7) is provided with a U-shaped opening (19) for the connecting wire (21) on the mating terminal (6) to be inserted. The insulating block A (4) is provided with an arc-shaped support block (20) that is lifted by a lifting spring and clamps the connecting wire (21) in the U-shaped opening (19). The lifting spring is located in the mounting groove opened on the insulating block A (4).

8. An insulation displacement connector according to claim 1, wherein: The terminal block (3), the terminal post (5), and the mating terminal (6) are all made of conductive aluminum.

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