Film capacitor with tracking shell

Abstract

The utility model discloses a film capacitor with a tracking shell, which relates to the technical field of capacitors and comprises the tracking shell, a film dielectric medium for storing current is arranged in the tracking shell, one side of the top of the tracking shell is fixedly connected with a capacitor anode, and the other side of the top of the tracking shell is fixedly connected with a capacitor cathode. The upper end of the electric leakage tracking shell is provided with a protective cover, the top of the protective cover is provided with a scale mark for displaying the current output current, the lower end of the capacitor positive electrode penetrates through the top of the electric leakage tracking shell and is connected with the interior of the thin film dielectric medium, and the other side of the top of the electric leakage tracking shell is provided with a capacitor negative electrode contact block. When the capacitor is used, the cathode of the capacitor is rotated, so that the electrified contact block is in contact with different positions of the resistor slide rail, the current is adjusted under the influence of resistance change when passing through the cathode, the output current of the capacitor can be adjusted, and the capacitor can adapt to different working requirements; and the applicability of the capacitor is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to capacitor technical field, concretely relates to a leakage tracking shell film capacitor. BACKGROUND

[0002] Leakage tracking shell film capacitor is a kind of film capacitor with special shell design, aims at the working environment and condition that can cause leakage tracking, to improve the safety and reliability of capacitor.This capacitor's leakage tracking shell usually has the following characteristics and advantages:enhanced insulation performance: adopt the material with high insulation resistance, effectively prevent current leakage, reduce the risk of leakage.Good surface properties: the surface of shell is treated specially, reduce surface roughness, reduce the possibility of charge accumulation and discharge, to inhibit the formation of leakage tracking.High temperature stability: still can maintain the physical and electrical properties of shell in high temperature environment, ensure that capacitor works normally.Fire-retardant performance: have certain fire-retardant ability, reduce the risk of fire.

[0003] The current leakage tracking shell film capacitor in the process of using in circuit, the current output size of capacitor itself cannot be adjusted, leading to the cost of different specifications of capacitor in the process of production and manufacturing is larger, and the adaptability of capacitor is poor, cannot adapt to different working requirements. UTILITY MODEL CONTENTS

[0004] The utility model provides a leakage tracking shell film capacitor to solve the problems in the above background technology.

[0005] To solve the above technical problems, the technical scheme adopted by the utility model is:

[0006] A leakage tracking shell film capacitor, comprising a leakage tracking shell, the inside of the leakage tracking shell is provided with a thin film dielectric for storing current, one side of the top of the leakage tracking shell is fixedly connected with a positive electrode of capacitor, and the upper end of the leakage tracking shell is provided with a protective cover.

[0007] The further improvement of the technical scheme of the utility model is that the top of the protective cover is provided with a scale line for displaying the current output, and the lower end of the positive electrode of capacitor penetrates through the top of the leakage tracking shell and is connected with the inside of the thin film dielectric.

[0008] The further improvement of the technical scheme of the utility model is that the other side of the top of the leakage tracking shell is provided with a negative electrode contact block, and the lower end of the negative electrode contact block penetrates through the top of the leakage tracking shell and is connected with the inside of the thin film dielectric.

[0009] The further improvement in the technical scheme of the utility model lies in that one side of the capacitor negative pole contact block is fixedly connected with a resistance sliding rail, and the top of the capacitor negative pole contact block is overlapped with a current passing contact block.

[0010] The further improvement in the technical scheme of the utility model lies in that the diameter of the current passing contact block is slightly smaller than the diameter of the inner cavity of the resistance sliding rail, and the top of the current passing contact block is fixedly connected with an elastic metal sheet.

[0011] The further improvement in the technical scheme of the utility model lies in that the top of one end of the elastic metal sheet is fixedly connected with a capacitor negative pole, and the surface of the capacitor negative pole is rotationally connected with the inside of the protective cover.

[0012] The further improvement in the technical scheme of the utility model lies in that the surface of the capacitor negative pole is fixedly connected with a current pointer, and the bottom of the current pointer is overlapped with the top of the protective cover.

[0013] Due to the adoption of the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0014] The utility model provides a leakage scratch shell film capacitor, through when using the capacitor process, rotating the capacitor negative pole, makes the current passing contact block and the different position contact of resistance sliding rail, makes the current from the negative pole, is affected by the resistance change and adjusts the current size when passing, makes the output current of capacitor can be adjusted, and further makes the capacitor can adapt to different work demand, improves the applicability of capacitor. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the front view structure schematic drawing of the utility model;

[0016] Figure 2 It is the section structure schematic drawing of the utility model;

[0017] Figure 3 It is the partial section structure schematic drawing of the utility model;

[0018] Figure 4 It is the Figure 2 A place amplification structure schematic drawing.

[0019] In the drawing: 1, leakage scratch shell; 2, film dielectric; 3, capacitor positive pole; 4, protective cover; 5, scale line; 6, capacitor negative pole contact block; 7, resistance sliding rail; 8, current passing contact block; 9, elastic metal sheet; 10, capacitor negative pole; 11, current pointer. DETAILED DESCRIPTION

[0020] The utility model will be further explained in detail in connection with the embodiment:

[0021] Embodiment 1

[0022] As Figures 1-4 The utility model provides a leakage track initiation shell film capacitor, including leakage track initiation shell 1, the inside of leakage track initiation shell 1 is provided with the film dielectric 2 of storage current, one side fixedly connected with the positive pole of electric capacity 3 at the top of leakage track initiation shell 1, the upper end of leakage track initiation shell 1 is provided with the protective cover 4, the top of protective cover 4 is provided with the scale line 5 of showing current output, the lower end of positive pole of electric capacity 3 penetrates the top of leakage track initiation shell 1 and is connected with the inside of film dielectric 2.

[0023] In this embodiment, by in the process of using, current from the positive pole of electric capacity 3 into film dielectric 2 is stored, then from the negative pole of electric capacity contact block 6 into resistance slide rail 7, through the energization contact block 8 and elastic metal sheet, into the negative pole of electric capacity 10 and flows out, through the capacitor pair circuit is stabilized, and the setting of leakage track initiation shell 1 can improve the safety of capacitor.

[0024] Example 2

[0025] As Figures 1-4 On the basis of example 1, the utility model provides a technical scheme: preferably, the inside of leakage track initiation shell 1 is provided with the film dielectric 2 of storage current, one side fixedly connected with the positive pole of electric capacity 3 at the top of leakage track initiation shell 1, the upper end of leakage track initiation shell 1 is provided with the protective cover 4, the top of protective cover 4 is provided with the scale line 5 of showing current output, the lower end of positive pole of electric capacity 3 penetrates the top of leakage track initiation shell 1 and is connected with the inside of film dielectric 2, the other side of the top of leakage track initiation shell 1 is provided with the negative pole of electric capacity contact block 6, the lower end of negative pole of electric capacity contact block 6 penetrates the top of leakage track initiation shell 1 and is connected with the inside of film dielectric 2, one side fixedly connected with resistance slide rail 7 of negative pole of electric capacity contact block 6, the top of negative pole of electric capacity contact block 6 is overlapped with the energization contact block 8.

[0026] In this embodiment, by before using, can rotate the negative pole of electric capacity 10, make elastic metal sheet 9 drive the energization contact block 8 along resistance slide rail 7 and slide, change the distance between the energization contact block 8 and negative pole of electric capacity contact block 6, and then by increasing resistance, adjust the current size, make it can adapt to different work requirements, in the process of using, current from the positive pole of electric capacity 3 into film dielectric 2 is stored, then from the negative pole of electric capacity contact block 6 into resistance slide rail 7, through the energization contact block 8 and elastic metal sheet, into the negative pole of electric capacity 10 and flows out, through the capacitor pair circuit is stabilized, and the setting of leakage track initiation shell 1 can improve the safety of capacitor.

[0027] Example 3

[0028] As Figures 1-4As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, a thin film dielectric 2 for storing current is provided inside the tracking current insulator housing 1. A positive capacitor 3 is fixedly connected to one side of the top of the tracking current insulator housing 1. A protective cover 4 is provided at the upper end of the tracking current insulator housing 1. A scale line 5 for displaying the current output current is provided on the top of the protective cover 4. The lower end of the positive capacitor 3 passes through the top of the tracking current insulator housing 1 and is connected to the interior of the thin film dielectric 2. The diameter of the energized contact 8 is slightly smaller than the diameter of the inner cavity of the resistor slide rail 7. An elastic metal sheet 9 is fixedly connected to the top of the energized contact 8. A negative capacitor 10 is fixedly connected to the top of one end of the elastic metal sheet 9. The surface of the negative capacitor 10 is rotatably connected to the interior of the protective cover 4. A current pointer 11 is fixedly connected to the surface of the negative capacitor 10. The bottom of the current pointer 11 overlaps with the top of the protective cover 4.

[0029] In this embodiment, when the negative terminal 10 of the capacitor rotates, it can also drive the current pointer 11 to rotate. By looking at the scale line 5 pointed to by the current pointer 11, the current output of the capacitor in the current state can be known, making it easier to use.

[0030] The working principle of this tracking-inducing film capacitor will be explained in detail below.

[0031] like Figures 1-4 As shown, during use, current enters the thin-film dielectric 2 from the positive terminal 3 of the capacitor for storage, then enters the resistor slide rail 7 from the negative terminal contact 6, passes through the energized contact 8 and the elastic metal sheet, and flows out into the negative terminal 10 of the capacitor. The capacitor stabilizes the voltage of the circuit. At the same time, the leakage tracking shell 1 can improve the safety of the capacitor. Before use, the negative terminal 10 of the capacitor can be rotated, so that the elastic metal sheet 9 drives the energized contact 8 to slide along the resistor slide rail 7, changing the distance between the energized contact 8 and the negative terminal contact 6 of the capacitor. This increases the resistance and adjusts the current to adapt to different working requirements. At the same time, when the negative terminal 10 of the capacitor is rotated, it can also drive the current pointer 11 to rotate. By looking at the scale line 5 pointed to by the current pointer 11, the current output current of the capacitor can be known at the current state, making it easier to use.

[0032] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A tracking enclosure film capacitor comprising a tracking enclosure (1), characterized in that: The inside of the electric leakage track shell (1) is provided with a film dielectric (2) for storing current, one side of the top of the electric leakage track shell (1) is fixedly connected with a positive electrode (3) of the capacitor, the upper end of the electric leakage track shell (1) is provided with a protective cover (4), the other side of the top of the electric leakage track shell (1) is provided with a negative electrode contact block (6) of the capacitor, the lower end of the negative electrode contact block (6) penetrates through the top of the electric leakage track shell (1) and is connected with the inside of the film dielectric (2), one side of the negative electrode contact block (6) is fixedly connected with a resistance slide rail (7), the top of the negative electrode contact block (6) is overlapped with a current feeding contact block (8), the diameter of the current feeding contact block (8) is smaller than that of the inner cavity of the resistance slide rail (7), the top of the current feeding contact block (8) is fixedly connected with an elastic metal sheet (9), one end of the elastic metal sheet (9) is fixedly connected with a negative electrode (10) of the capacitor, and the surface of the negative electrode (10) is rotationally connected with the inside of the protective cover (4).

2. The partial discharge inception enclosure film capacitor of claim 1, wherein: The top of the protective cover (4) is provided with a scale line (5) for displaying the current output, and the lower end of the positive electrode (3) of the capacitor penetrates through the top of the electric leakage track shell (1) and is connected with the inside of the film dielectric (2).

3. The tracking hazard enclosure film capacitor of claim 1, wherein: The surface of the negative electrode (10) is fixedly connected with a current pointer (11), and the bottom of the current pointer (11) is overlapped with the top of the protective cover (4).

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