Self-healing low-voltage parallel capacitor

Abstract

The self-healing low-voltage parallel capacitor comprises a capacitor body and a wire holder installed at the top of the capacitor body, placing grooves are formed in the front side and the rear side of the interior of the wire holder, oil receiving boxes used for receiving transformer oil are movably connected into the placing grooves, and the edges of the front side and the rear side of the top of the wire holder are arranged in an inclined mode. A plurality of leakage holes are formed in the inclined position in the wire holder at equal intervals, and the multiple leakage holes are arranged in a staggered mode. The longitudinal end edges of the left and right sides of the wire holder are fixedly connected with elastic plates, and the side surfaces, close to the wire holder, of the elastic plates are fixedly connected with extrusion strips. After the oil receiving box is inserted into the placing grooves, the hydraulic oil which seeps outwards can be guided and stored through the placing grooves which are symmetrically arranged and the plurality of leaking holes which are formed in a staggered mode, workers can conveniently collect the hydraulic oil, the situation that the hydraulic oil is lost cannot occur, and the edges of the two sides of the wire holder are obliquely arranged, so that flowing of the hydraulic oil is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitors, in particular to a self-healing low-voltage parallel capacitor. Background Art

[0002] Self-healing capacitors use a single-layer polypropylene film as a medium, and a thin layer of metal is evaporated on the surface as a conductive electrode. The capacitor is filled with transformer oil. When the transformer is used for a long time or during maintenance and construction, the transformer oil will drip on the terminal block or the upper end of the capacitor. If it is not cleaned up as soon as possible, it will remain on the outer wall for a long time. When the transformer oil leakage reaches a certain amount, the transformer oil will be insufficient. When the oil level of the operating transformer drops too much, it may cause the gas protection to malfunction. When the transformer is seriously short of oil, the internal winding is exposed, which may cause insulation damage or even breakdown accidents.

[0003] A Chinese patent with publication number (CN216528457U) discloses a self-healing low-voltage parallel capacitor, including a capacitor body, both sides of the bottom end of the capacitor body are provided with mounting seats matching the side walls of the capacitor body, a wiring seat is fixedly provided on the upper end of the capacitor body, three groups of wiring studs are evenly spaced on the wiring seat, an oil receiving groove is provided on one side of the wiring seat, a plurality of perforations are evenly spaced on the upper wall of the oil receiving groove, an oil absorption block is provided matching the oil receiving groove, the oil absorption block includes an oil absorption cotton block matching the oil receiving groove, a baffle is fixedly provided on the outer end of the oil absorption cotton block, and a hand-pinch block is fixedly provided on the outer end of the baffle. The oil absorption cotton block is made of polypropylene oil absorption cotton. A circle of convex ridges is provided on the top edge of the capacitor body. The mounting seat is provided with mounting screw holes. The length of the baffle is greater than the length of the oil receiving groove. The utility model is simple and convenient to operate and has strong practicality.

[0004] The defect of the above-mentioned selected technology is that the hydraulic oil is diverted by opening multiple perforations, so that the hydraulic oil enters the oil receiving groove and is absorbed by the oil absorbing cotton block, but the perforations and the oil receiving groove are only opened on one side of the terminal block, and the leaked hydraulic oil will not flow to only one side, and there are a lot of gaps between the multiple perforations, and the hydraulic oil will also flow through the gaps, and not all of it will flow into the oil receiving groove. Utility Model Content

[0005] The purpose of the utility model is to provide a self-healing low-voltage shunt capacitor to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a self-healing low-voltage parallel capacitor, comprising a capacitor body and a terminal block installed on the top of the capacitor body, the terminal block having placement grooves on both the front and rear sides thereof, the placement groove having an oil receiving box for receiving transformer oil movably connected thereto, the front and rear edges of the top of the terminal block being inclined, the terminal block having a plurality of leakage holes equidistantly provided therein at an inclined position, and the plurality of leakage holes being staggered.

[0007] As a preferred solution of the utility model, elastic plates are fixedly connected to the longitudinal end edges on both sides of the left and right sides of the wiring seat, and an extrusion strip is fixedly connected to a side of the elastic plate close to the wiring seat.

[0008] As a preferred solution of the utility model, after the oil receiving box is inserted into the placement groove, the extrusion strip abuts against the front side of the oil receiving box.

[0009] As a preferred solution of the utility model, a fixing seat is fixedly connected to the bottom of the capacitor body, and a fixing hole is opened inside the fixing seat.

[0010] As a preferred solution of the utility model, the extrusion strip is made of rubber material.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the utility model can guide and store the leaking hydraulic oil through the symmetrically arranged placement grooves and multiple staggered leakage holes, which is convenient for staff to collect and will not cause hydraulic oil loss. In addition, the edges on both sides of the terminal block are inclined, which is more convenient for the flow of hydraulic oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the oil collecting box removal structure of the utility model;

[0014] Figure 3 For the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0015] In the figure: 1. capacitor body; 2. terminal block; 3. fixing seat; 4. fixing hole; 5. oil collecting box; 6. placement groove; 7. extrusion strip; 8. leakage hole; 9. elastic plate. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figures 1 to 3 The utility model provides a technical solution: a self-healing low-voltage shunt capacitor, comprising a capacitor body 1 and a terminal block 2 installed on the top of the capacitor body 1, a placement groove 6 is opened on both the front and rear sides of the terminal block 2, and an oil receiving box 5 for receiving transformer oil is movably connected inside the placement groove 6, and the size of the oil receiving box 5 matches the size of the placement groove 6. The front and rear edges of the top of the terminal block 2 are inclined from top to bottom, and the inclination angle is 10°, which can facilitate the flow of hydraulic oil. A plurality of leakage holes 8 are equidistantly opened at an inclined position inside the terminal block 2, and the hydraulic oil can flow into the oil receiving box 5 through the leakage holes 8, and the plurality of leakage holes 8 are arranged along the inclined direction of the terminal block 2, and the leakage holes 8 in adjacent rows are staggered. The staggered leakage holes 8 can prevent the hydraulic oil from flowing down through the position where no holes are opened.

[0018] Among them, elastic plates 9 are fixedly connected to the longitudinal end edges on both sides of the terminal block 2. The elastic plates 9 can be deformed outward when subjected to force. An extrusion strip 7 is fixedly connected to the side of the elastic plate 9 close to the terminal block 2. The extrusion strip 7 is made of rubber material, which can increase the friction between the extrusion strip 7 and the oil collecting box 5.

[0019] After the oil receiving box 5 is inserted into the placement groove 6, the extrusion strip 7 abuts against the front surface of the oil receiving box 5, abuts against the oil receiving box 5, and prevents the oil receiving box 5 from sliding out.

[0020] The bottom of the capacitor body 1 is fixedly connected with a fixing seat 3 , and a fixing hole 4 is provided inside the fixing seat 3 , so that the capacitor body 1 can be installed and fixed.

[0021] Specifically, when the terminal stud at the upper end of the terminal block 2 leaks oil, the leaked hydraulic oil will be guided through the inclined surface of the terminal block 2, flow to the position of the leakage hole 8, and then discharge through multiple leakage holes 8. The hydraulic oil flows into the interior of the oil receiving box 5, and the elastic plate 9 is pushed to both sides to take out the oil receiving box 5 and collect the hydraulic oil inside the oil receiving box 5.

[0022] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0024] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0025] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-healing low-voltage shunt capacitor, comprising a capacitor body (1) and a terminal block (2) mounted on the top of the capacitor body (1), characterized in that: The wiring seat (2) is provided with placement grooves (6) on both the front and rear sides thereof, and an oil receiving box (5) for receiving transformer oil is movably connected to the inside of the placement groove (6). The front and rear edges of the top of the wiring seat (2) are arranged at an angle, and a plurality of leakage holes (8) are equidistantly arranged at the inclined position inside the wiring seat (2), and the plurality of leakage holes (8) are arranged in a staggered manner.

2. A self-healing low voltage shunt capacitor according to claim 1, characterized in that: Elastic plates (9) are fixedly connected to the longitudinal end edges of the left and right sides of the wiring seat (2), and an extrusion strip (7) is fixedly connected to a side of the elastic plate (9) close to the wiring seat (2).

3. A self-healing low voltage shunt capacitor according to claim 2, characterized in that: After the oil receiving box (5) is inserted into the placement groove (6), the extrusion strip (7) abuts against the front surface of the oil receiving box (5).

4. The self-healing low-voltage shunt capacitor according to claim 1, characterized in that: A fixing seat (3) is fixedly connected to the bottom of the capacitor body (1), and a fixing hole (4) is provided inside the fixing seat (3).

5. The self-healing low-voltage shunt capacitor according to claim 3, characterized in that: The extrusion strip (7) is made of rubber material.

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