Capacitor with easy maintenance

Abstract

The utility model relates to a capacitor convenient to maintain, including body and two groups of electricity -making components, the electricity -making component includes the terminal plug and socket of plug -in connection, the terminal plug with the body electric connection, the socket external circuit, the socket includes insulating part and installs the conducting body in insulating part, the conducting body includes: the plug -in cylinder, the plug -in cylinder one end opening to supply the terminal plug plug -in, contact spring piece, one end of contact spring piece is connected in the opening end of plug -in cylinder, and the other end extends to the inside side far from the opening end direction and inclines, and electricity -making head, electricity -making head connects in the closed end of plug -in cylinder and external circuit. The utility model will "terminal plug and socket of plug -in connection" as the core electricity -making structure, and the plug -in type structure realizes the quick separation / butt joint of body and external circuit, has solved the problem of low maintenance efficiency of traditional fixed connection, and has reduced the downtime.

Description

Technical Field

[0001] This utility model belongs to the field of capacitor technology, and in particular relates to a capacitor that is easy to maintain. Background Technology

[0002] In industrial production, power systems, and other fields, capacitors are core components for energy storage and filtering, and their stable operation directly affects the overall efficiency of the equipment. Because they are constantly subjected to charge-discharge cycles or complex operating conditions, capacitors require regular maintenance, repair, or replacement to prevent equipment failure due to performance degradation. However, the existing capacitor connection structure design has significant flaws, resulting in excessively long equipment downtime during maintenance, severely impacting production continuity.

[0003] Currently, the connection between capacitors and external circuits mainly relies on two methods:

[0004] One method is welding, where the capacitor electrodes are directly welded to the external circuit using wires. While this method ensures conductivity stability, maintenance requires specialized tools to melt the solder joints, making the process cumbersome and requiring professional personnel. Disassembling and reconnecting a single capacitor can often take tens of minutes or even hours.

[0005] Secondly, bolted connections are used to fix the capacitor electrodes to the external terminals. Compared to welding, this method is easier to disassemble, but it still requires loosening / tightening the bolts sequentially. In scenarios with multiple wiring connections, the operation is still cumbersome.

[0006] Therefore, optimizing the capacitor's connection structure, reducing maintenance steps, and shortening downtime have become key issues that urgently need to be addressed in existing technologies. Utility Model Content

[0007] This utility model addresses the problems of existing technologies by providing a capacitor that is easy to maintain. The specific technical solution is as follows:

[0008] An easy-to-maintain capacitor includes a body and two sets of power connection components. The power connection components include plug-in plugs and sockets. The plugs are electrically connected to the body, and the sockets are connected to an external circuit.

[0009] The socket includes an insulating component and a conductive component installed within the insulating component, the conductive component comprising:

[0010] A socket, one end of which is open for insertion and removal of a terminal plug;

[0011] A contact spring, one end of which is connected to the open end of the insert, and the other end extends inward at an angle away from the open end.

[0012] A connector is provided, which is connected to the closed end of the insert and connected to an external circuit.

[0013] As a further technical solution of this utility model, the contact springs are provided in at least two sets and are evenly distributed around the circumference of the insert.

[0014] As a further technical solution of this utility model, the extended end of the contact spring has a protruding contact point, and the surface of the terminal plug has a concave annular groove. In the installed state, the contact point is embedded in the annular groove.

[0015] As a further technical solution of this utility model, in the installed state, the insertion end of the terminal plug abuts against the closed end of the plug tube.

[0016] As a further technical solution of this utility model, there is a gap between the opening end of the insert and the end of the insulating component.

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

[0018] (1) The core power connection structure is the "plug-in terminal plug and socket". The plug-in structure enables the rapid separation / connection of the main body and the external circuit, which solves the problem of low maintenance efficiency of traditional fixed connection and reduces downtime.

[0019] (2) The contact spring is designed with "one end connected to the opening end of the plug tube and the other end extending inward away from the opening end". Its inclined extension elastic structure can generate a reverse elastic force when the terminal plug is inserted, which can not only ensure a tight fit with the plug surface to reduce contact resistance, but also adapt to the small size error of the plug to improve compatibility. At the same time, the layout of "at least two sets of circumferentially evenly distributed" disperses the current through multi-point contact and avoids single-point heating. Compared with traditional single contact or disordered elastic parts, it realizes the multi-functional integration of "elastic contact, error adaptation and current dispersion", which significantly improves the conductivity stability.

[0020] (3) By integrating conductive components into insulating components, the integration of “insulation protection-conductive conduction-insertion guidance” is creatively achieved: the insulating components isolate conductive components and reduce the risk of electric shock; the plug provides precise insertion and removal guidance for the terminal plug and avoids misalignment; the connection relationship between the contact spring and the plug ensures the coordination of elastic contact and guidance, which solves the problem of the separation of insulation, conductivity and guidance functions in traditional structures and achieves a comprehensive improvement in safety and reliability. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of a capacitor that is easy to maintain is shown;

[0022] Figure 2 A schematic diagram of the internal structure of the power connection assembly is shown;

[0023] Figure 3 A schematic diagram of the socket structure is shown;

[0024] Figure 4 A schematic diagram of the conductive component is shown.

[0025] Legend:

[0026] 100. Body; 200. Electrical connection assembly; 210. Terminal plug; 211. Ring groove; 220. Socket; 221. Insulator; 300. Conductor; 310. Insert; 320. Contact spring; 321. Contact point; 330. Electrical connector. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0028] Figure 1 A schematic diagram of the overall structure of a capacitor that is easy to maintain is shown; Figure 2 A schematic diagram of the internal structure of the power connection assembly 200 is shown; Figure 3 A schematic diagram of the socket 220 is shown; Figure 4 A schematic diagram of the conductive element 300 is shown.

[0029] Figure 1 and Figure 2 The easy-to-maintain capacitor includes:

[0030] Ontology 100;

[0031] It includes two sets of power connection components 200, each including a plug-in terminal plug 210 and a socket 220. The terminal plug 210 is electrically connected to the main body 100, and the socket 220 is connected to an external circuit.

[0032] The capacitor body 100 is the main component that enables the capacitor to perform core functions such as energy storage and filtering. It contains key components such as plates and electrolytes. The connecting assembly 200 acts as a bridge, obtaining or outputting electrical energy through the electrical connection between the terminal plug 210 and the capacitor body 100, and forming a path with the external circuit through the socket 220. The design of the two connecting assemblies adapts to the typical positive and negative terminal connection requirements of the capacitor, ensuring the stability of bidirectional current conduction. The "plug-and-play" connection between the terminal plug and the socket allows for easy separation of the capacitor and external circuit when the capacitor body 100 needs maintenance or replacement. Simply unplug the terminal plug from the socket to disconnect the capacitor body from the external circuit, and then plug it back in to restore the connection. This significantly simplifies the maintenance process, reducing the disassembly / installation steps required by traditional welding or bolt fixing methods, thus lowering the operational difficulty for maintenance personnel. It also shortens maintenance time, especially in industrial settings, reducing equipment downtime and improving overall production efficiency. Furthermore, it reduces maintenance risks, avoiding overheating damage to the capacitor body that may result from welding operations, or poor circuit contact that may occur due to bolt removal.

[0033] Figure 3 and Figure 4 In the socket 220, there is an insulating member 221 and a conductive member 300 installed within the insulating member 221. The conductive member 300 includes:

[0034] The socket 310 has an opening at one end for inserting and removing the terminal plug 210.

[0035] Contact spring 320, one end of contact spring 320 is connected to the open end of insert 310, and the other end extends inward at an angle away from the open end. At least two sets of contact spring 320 are provided and are evenly distributed around insert 310.

[0036] Connector 330 is connected to the closed end of insert 310 and connected to an external circuit.

[0037] The insulating component 221 of the socket 220 is made of insulating materials such as plastic and ceramic. Its core function is to isolate the conductive component 300 from the external environment, prevent current leakage or short circuit with other metal parts, and ensure electrical safety. The conductive component 300 is the core of realizing power conduction. The socket 310 provides a precise insertion and removal guide channel for the terminal plug 210, ensuring that the terminal plug is always in the same position and avoiding poor contact due to misalignment. The contact spring 320, due to its inclined and extended elastic structure, is pushed outward when the terminal plug is inserted, and at the same time generates a reverse elastic force. The connector fits snugly against the surface of the terminal plug, forming a stable electrical contact, reducing contact resistance, and accommodating minor dimensional errors that may exist in the terminal plug. The design of "at least two sets of circumferentially evenly distributed" disperses the current through multi-point contact, avoiding the heat generation problem caused by current concentration in single-point contact and improving conductivity stability. The connector 330 serves as the direct connection point between the conductive component and the external circuit, stably conducting the current from the terminal plug to the socket, ultimately realizing the exchange of electrical energy between the main body and the external circuit. The guiding function of the socket 310 ensures the convenience and accuracy of insertion and removal operations, reducing the probability of misoperation.

[0038] See Figure 2 and Figure 4 The extended end of the contact spring 320 has a raised contact 321, and the surface of the terminal plug 210 has a recessed annular groove 211. In the installed state, the contact 321 is embedded in the annular groove 211.

[0039] The interaction between contact 321 and annular groove 211 is a dual design of "mechanical limiting + enhanced electrical contact". When terminal plug 210 is inserted into insert 310 to the preset position, the elastic force of contact spring 320 will push contact 321 to precisely engage with annular groove 211. From a mechanical point of view, the concave structure of annular groove and the protrusion of contact form a snap-fit ​​fixation, which can effectively prevent terminal plug from axial displacement or falling off under the action of external forces such as vibration and impact. From an electrical point of view, the tight fit between contact and inner wall of annular groove increases the contact area, and the pressure in the fitted state makes the contact surface less prone to oxidation or gaps, ensuring the stability of current conduction, reducing energy loss caused by contact resistance, and providing clear feedback on installation. Maintenance personnel can judge whether the installation is in place by the tactile feeling or sound of "contact engaging with annular groove", reducing the rate of operational errors.

[0040] See Figure 2 In the installed state, the insertion end of the terminal plug 210 abuts against the closed end of the plug 310.

[0041] The contact design between the insertion end of the terminal plug 210 and the closed end of the socket 310 essentially provides a precise axial positioning reference for the terminal plug. When the terminal plug is inserted, it reaches the preset installation position only after contacting the closed end. At this point, the contact point 321 of the contact spring 320 aligns and engages precisely with the annular groove 211 of the terminal plug, ensuring the effectiveness of both mechanical limiting and electrical contact. Simultaneously, in the contact state, the closed end of the socket bears part of the axial pressure of the terminal plug, preventing the contact spring from undergoing plastic deformation due to long-term exposure to full axial force, thus ensuring the long-term stability of the spring's elastic properties.

[0042] See Figure 3 There is a gap between the open end of the insert 310 and the end of the insulating member 221.

[0043] The design of this spacing essentially creates a "safety isolation barrier" through the insulating component 221. The insulating component 221 is made of insulating material, and its end is closer to the external operating space than the open end of the socket 310. Both the socket 310 and the internal contact spring 320 are conductive components. When maintenance personnel pick up or operate the socket 220, their hands or tools will first come into contact with the end of the insulating component 221. The existence of the spacing allows the conductive socket opening and contact spring to be "hidden" inside the insulating component, forming a physical isolation and preventing maintenance personnel from directly touching the conductive components. Especially after the terminal plug 210 is pulled out, the contact spring 320 may still be in a live state. At this time, the spacing ensures that the end of the insulating component can effectively block the conductive parts, reducing the risk of electric shock due to accidental contact.

[0044] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A capacitor that is easy to maintain, characterized in that, It includes a main body (100) and two sets of power connection components (200). The power connection components (200) include a plug-in terminal plug (210) and a socket (220) that are pluggable. The terminal plug (210) is electrically connected to the main body (100), and the socket (220) is connected to an external circuit. The socket (220) includes an insulating member (221) and a conductive member (300) mounted within the insulating member (221), the conductive member (300) comprising: A plug (310) has an opening at one end for insertion and removal of a terminal plug (210); A contact spring (320) has one end connected to the open end of the insert (310) and the other end extending inward at an angle away from the open end. and a connector (330), which is connected to the closed end of the insert (310) and connected to an external circuit.

2. The easy-to-maintain capacitor according to claim 1, characterized in that: The contact springs (320) are provided in at least two sets and are evenly distributed around the insert (310) in the circumference.

3. The easy-to-maintain capacitor according to claim 2, characterized in that: The extended end of the contact spring (320) has a raised contact point (321), and the surface of the terminal plug (210) has a recessed annular groove (211). In the installed state, the contact point (321) is embedded in the annular groove (211).

4. The easy-to-maintain capacitor according to claim 3, characterized in that: In the installed state, the insertion end of the terminal plug (210) abuts against the closed end of the socket (310).

5. The easy-to-maintain capacitor according to claim 3, characterized in that: There is a gap between the open end of the insert (310) and the end of the insulating member (221).

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