A novel composite film capacitor

Abstract

The application discloses a novel composite film capacitor, which comprises a base, an upper rotating assembly and a snap ring; the bottom of the base is provided with positive and negative pins, and the top of the base is provided with positive and negative metal connecting sheets; the upper rotating assembly comprises a cylinder, capacitor assembly one, capacitor assembly two, capacitor assembly three, a shaping adapter and a switching access disc; the cylinder is a shell with an open bottom and a cylindrical cavity in the middle; the cylinder is sequentially provided with capacitor assembly one, the shaping adapter, capacitor assembly two, the shaping adapter, capacitor assembly three, the shaping adapter and the switching access disc from top to bottom; and the upper rotating assembly is buckle-connected with the base. The novel composite film capacitor has a simple and reasonable structure design and is convenient to assemble; the structure design is simple and reasonable, and the capacitor is convenient to assemble; a plurality of capacitors with different specifications are combined together, the capacitor part can be rotated, and a capacitor with a corresponding specification can be selected to be connected to a circuit.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of capacitor, in particular to a new type of composite film capacitor. BACKGROUND

[0002] When the capacitor is installed, the capacitor body needs to be welded in the circuit by means of its two positive and negative pins. When the working condition changes and other specifications of capacitors need to be replaced, the pins are often cut off directly, and then a new capacitor is welded at the place. The replaced capacitor cannot be used normally due to the cut-off pins, and it is very troublesome to replace the pins of a capacitor. In order to save labor and time cost, people often discard the capacitors with intact bodies but only cut-off pins, resulting in waste. The price of intelligent high-frequency capacitors is relatively high compared with that of non-intelligent low-frequency capacitors. As a result, the waste is more serious.

[0003] Therefore, the present application designs a capacitor with multiple specifications combined into one. When other specifications of capacitors need to be replaced, the relevant components of the capacitor are rotated, so that the required specification of capacitor can be connected to the circuit, without the need to cut off the pins and then connect the new capacitor. SUMMARY

[0004] The embodiment of the present application provides a new type of composite film capacitor, which has simple and reasonable structure design and is convenient to assemble. Multiple capacitors with different specifications are combined together, the capacitor part can be rotated, and the capacitor with corresponding specification can be connected to the circuit.

[0005] In order to solve the above technical problems, the technical scheme of the present application is as follows:

[0006] A new type of composite film capacitor, comprising a base, an upper rotating component and a snap ring.

[0007] The base is provided with a positive pin and a negative pin at the bottom, and a positive metal sheet and a negative metal sheet at the top. The positive pin is connected to the positive metal sheet at the top, and the negative pin is connected to the negative metal sheet at the top. The positive metal sheet and the negative metal sheet are arranged at intervals.

[0008] The top of the base is provided with a ring wall, and the outer side of the ring wall is provided with a ring groove one.

[0009] The upper rotating component comprises a cylinder, capacitor assembly one, capacitor assembly two, capacitor assembly three, a shaping adapter and a switching access disc. The cylinder is a shell with an open bottom and a cylindrical cavity in the middle. The cylinder is provided with capacitor assembly one, a shaping adapter, capacitor assembly two, a shaping adapter, capacitor assembly three, a shaping adapter and the switching access disc from top to bottom.

[0010] The inner wall of the bottom of the cylinder is provided with a ring groove two, and the snap ring is arranged in the ring groove two.

[0011] The clamping ring is a metal wire ring, which comprises several straight edge segments and circular arc segments, and the two ends of the straight edge segment are connected to the circular arc segments respectively; the clamping ring is arranged in the annular groove two.

[0012] The upper rotating assembly is buckled with the base, specifically, the circular arc segment of the clamping ring is limited in the annular groove two of the cylinder body, and the straight edge segment is limited in the annular groove one, so as to realize the buckling connection of the upper rotating assembly and the base.

[0013] The clamping ring is provided with an open slot, so as to facilitate the assembly of the clamping ring into the annular groove two, and the stress deformation and resetting of the clamping ring.

[0014] The capacitor assembly one comprises an anode foil, a cathode foil, a separator paper, a dielectric layer, a positive pole pin and a negative pole pin, the separator paper is arranged between the anode foil and the cathode foil, and the anode foil, the cathode foil and the dielectric layer are wound into a roll; the top end of the positive pole pin is connected to the anode foil, and the top end of the negative pole pin is connected to the cathode foil; the dielectric layer is a polytetrafluoroethylene film.

[0015] The shaping adapter is a circular ring piece, and six vertical wire passing grooves are uniformly arranged on the outer wall thereof; the positive pole pin and the negative pole pin are respectively arranged in the wire passing grooves; the caliber of the wire passing groove is adapted to the size of the positive pole pin and the negative pole pin, and the wire passing groove clamps the positive pole pin and the negative pole pin. Preferably, the shaping adapter is made of an insulating material with certain elasticity.

[0016] The capacitor assembly two, the capacitor assembly three and the capacitor assembly one have the same structure, and the difference lies in that the size specifications of the anode foil, the cathode foil and the separator paper are different. The positive pole pin and the negative pole pin of the capacitor assembly two and the capacitor assembly three are respectively inserted into the wire passing grooves of the shaping adapter below. The switching access disc is horizontally arranged, and the outer edge thereof is fixedly connected to the inner wall of the cylinder body.

[0017] The switching access disc is provided with six metal contacts, the top end of the metal contact is fixedly connected to the positive pole pin or the negative pole pin, and the bottom end of the metal contact is movably connected to the positive metal sheet or the negative metal sheet.

[0018] Optionally, the positive pole pin and the negative pole pin can be fixedly bonded in the wire passing groove by using an insulating tape.

[0019] The capacitor assembly one, the capacitor assembly two and the capacitor assembly three can be spliced into a rod-shaped assembly by the shaping adapter, and then the top end of the positive pole pin and the negative pole pin is connected to the metal contact on the switching access disc; the connected assembly is inserted into the inner cavity of the cylinder body; after the switching access disc is fixedly limited, the clamping ring is arranged in the annular groove two, and then the upper rotating assembly is buckled with the base.

[0020] The beneficial effects of the present application are as follows:

[0021] The structure is simple and reasonable, and the assembling is convenient.

[0022] The plurality of capacitors of different specifications are combined together, the upper rotating assembly is rotated around the center of the base, the six metal contacts (three groups) on the disc are switched and connected with the positive and negative metal sheets, the three groups of metal contacts are switched and connected with the positive and negative metal sheets, so that capacitors of different specifications are switched and connected with the circuit; the plurality of capacitors are combined together, the energy storage capacity is large, the response speed is fast, and the maintenance is convenient.

[0023] The base and the upper rotating assembly are connected in a buckle mode, when the capacitor has an excessive leakage current or the capacitor is broken, the capacitor generates a large amount of heat energy in a short time, the heat energy pushes the upper rotating assembly upward, the upper rotating assembly is disconnected from the base, and damage to other electronic components on the circuit board is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural exploded view of the novel composite thin film capacitor of the application;

[0025] Figure 2 It is a sectional view of the novel composite thin film capacitor of the application;

[0026] Figure 3 It is Figure 2 An enlarged view of A in FIG. 1. DETAILED DESCRIPTION

[0027] The specific embodiments of the application will be further described below with reference to the accompanying drawings. It should be noted that the description of the embodiments is used to help understand the application, but does not constitute a limitation on the application. In addition, the technical features involved in the various embodiments of the application described below can be combined with each other as long as they do not conflict with each other.

[0028] As Figures 1-3 shown, a novel composite thin film capacitor comprises a base 1, an upper rotating assembly 3, and a clasp ring 2.

[0029] The base 1 is provided with a positive pin 10 and a negative pin 11 at the bottom, and is provided with a positive metal sheet 12 and a negative metal sheet 13 at the top; the positive pin 10 is connected with the positive metal sheet 12 at the top, and the negative pin 11 is connected with the negative metal sheet 13 at the top; the positive metal sheet 12 and the negative metal sheet 13 are arranged at intervals.

[0030] The base 1 is provided with a ring wall 14 at the top, and the outer side of the ring wall 14 is provided with an annular groove 15.

[0031] The upper rotating assembly 3 comprises a cylinder 4, a capacitor assembly one 5, a capacitor assembly two 6, a capacitor assembly three 7, a shaping adapter 8 and a switching access disc 9. The cylinder 4 is a shell with an open bottom and a cylindrical cavity in the middle. Inside the cylinder 4, from top to bottom, are sequentially arranged the capacitor assembly one 5, the shaping adapter 8, the capacitor assembly two 6, the shaping adapter 8, the capacitor assembly three 7, the shaping adapter 8 and the switching access disc 9.

[0032] The inner wall of the bottom of the cylinder 4 is provided with an annular groove two 41, and the clamping ring 2 is arranged in the annular groove two 41.

[0033] The clamping ring 2 is a metal wire ring, which comprises a plurality of straight edge segments 21 and arc segments 22, and the two ends of the straight edge segment 21 are respectively connected to the arc segment 22. The clamping ring 2 is arranged in the annular groove two 41, and the arc segment 22 is arranged in the annular groove two 41, and the straight edge segment 21 is exposed outside the annular groove two 41.

[0034] The upper rotating assembly 3 is buckled to the base 1, specifically, the arc segment 22 of the clamping ring 2 is limited in the annular groove two 41 of the cylinder 4, and the straight edge segment 21 is clamped in the annular groove one 15 (the straight edge segment 21 is arranged in the annular groove one 15), so as to realize the buckling connection of the upper rotating assembly 3 and the base 1.

[0035] An opening slot 23 is arranged on the clamping ring 2, so as to facilitate the assembly of the clamping ring 2 into the annular groove two 41 and the stress deformation and resetting of the clamping ring 2.

[0036] The capacitor assembly one 5 comprises an anode foil, a cathode foil, a separator paper, a dielectric layer, a positive pole pin 51 and a negative pole pin 52. The separator paper is arranged between the anode foil and the cathode foil, and the anode foil, the cathode foil and the dielectric layer are wound into a roll. The dielectric layer is a polytetrafluoroethylene film. The top end of the positive pole pin 51 is connected to the anode foil, and the top end of the negative pole pin 52 is connected to the cathode foil. The dielectric strength of the polytetrafluoroethylene film is greater than 500 V / um, and the tensile strength is greater than 10,000 psi. The polytetrafluoroethylene film is used for capacitor dielectric, wire insulation, electrical instrument insulation and sealing gasket. The polytetrafluoroethylene film is a kind of oriented film formed by hot roller rolling orientation through a calender. The film has high crystallinity, the molecules are arranged tightly, and the void ratio is small. Therefore, the polytetrafluoroethylene film has great improvement, especially the voltage resistance is more obvious.

[0037] The shaping adapter 8 is a circular ring piece, and six vertical wire passing grooves 81 are uniformly arranged on the outer wall of the circular ring piece. The positive pole pin 51 and the negative pole pin 52 are respectively arranged in the wire passing grooves 81. The caliber of the wire passing grooves 81 is adapted to the size of the positive pole pin 51 and the negative pole pin 52, and the wire passing grooves 81 clamp the positive pole pin 51 and the negative pole pin 52. Preferably, the shaping adapter 8 is made of an insulating material with certain elasticity.

[0038] The structure of the capacitor assembly two 6 and the capacitor assembly three 7 is same as the capacitor assembly one 5, the difference is that the size of the anode foil, the cathode foil and the isolation paper is different. The positive pin 51 and the negative pin 52 of the capacitor assembly two 6 and the capacitor assembly three 7 are inserted into the wire slot 81 of the fixed adapter 8 below. The positive pin 51 and the negative pin 52 of the capacitor assembly one 5 are inserted into the wire slot 81 of the three fixed adapters 8 below; the positive pin 51 and the negative pin 52 of the capacitor assembly two 6 are inserted into the wire slot 81 of the two fixed adapters 8 below; the positive pin 51 and the negative pin 52 of the capacitor assembly three 7 are inserted into the wire slot 81 of the one fixed adapter 8 below; the capacitor assembly one 5, the capacitor assembly two 6 and the capacitor assembly three 7 can be spliced into a rod-shaped assembly through the fixed adapter 8.

[0039] The switching access disc 9 is horizontally arranged, and the outer edge is fixedly connected with the inner wall of the cylinder 4.

[0040] Six metal contacts 91 are arranged on the switching access disc 9, the top end of the metal contact 91 is fixedly connected with the positive pin 51 or the negative pin 52, and the bottom end is movably connected with the positive metal sheet 12 or the negative metal sheet 13.

[0041] Optionally, the positive pin 51 and the negative pin 52 can be fixedly bonded in the wire slot 81 by using an insulating tape.

[0042] In order to limit the radial displacement of the switching access disc 9, a convex strip is arranged on the inner wall of the bottom of the cylinder 4, and a clamping groove 92 is arranged on the outer wall of the switching access disc 9; the convex strip is arranged in the clamping groove 92.

[0043] Preferably, a slope is arranged on the top edge of the ring wall 14.

[0044] The capacitor assembly one 5, the capacitor assembly two 6 and the capacitor assembly three 7 can be spliced into a rod-shaped assembly through the fixed adapter 8, then the top end of the positive pin 51 and the negative pin 52 is connected with the metal contact 91 on the switching access disc 9; the connected assembly is inserted into the inner cavity of the cylinder 4; after the switching access disc 9 is fixedly positioned, the snap ring 2 is arranged in the annular groove two 41, and then the upper rotating assembly 3 is buckled with the base 1.

[0045] Preferably, in order to control the rotation and positioning of the upper rotating assembly 3, a red arrow mark is arranged on the outer shell of the base 1, and three red arrow marks are uniformly arranged on the outer shell of the upper rotating assembly 3; when the two arrows are aligned, it indicates that the metal contact 91 is in butt joint with the positive metal sheet 12 and the negative metal sheet 13, and one capacitor in the capacitor assembly one 5, the capacitor assembly two 6 and the capacitor assembly three 7 is accessed.

[0046] The embodiments of the present application are described in detail above with reference to the accompanying drawings, but the present application is not limited to the described embodiments. Various changes, modifications, replacements, and variations of the embodiments can be made by those skilled in the art without departing from the principles and spirit of the present application, and still fall within the scope of the present application.

Claims

1. A novel composite thin film capacitor characterized by: It comprises a base, an upper rotating assembly and a clasp ring. The base is provided with positive and negative pins at the bottom and positive and negative metal sheets at the top. The top of the base is provided with a ring wall, and the outer side of the ring wall is provided with an annular groove I. The upper rotating assembly comprises a cylinder, capacitor assembly I, capacitor assembly II, capacitor assembly III, a shaping adapter and a switching access disc. The cylinder is a shell with an open bottom and a cylindrical cavity in the middle. The cylinder is provided with capacitor assembly I, a shaping adapter, capacitor assembly II, a shaping adapter, capacitor assembly III, a shaping adapter and a switching access disc from top to bottom. The inner wall of the bottom of the cylinder is provided with an annular groove II, and the clasp ring is arranged in the annular groove II. The clasp ring is a metal wire ring comprising a plurality of straight edge segments and arc segments. The straight edge segments are connected to the arc segments at both ends. The arc segments of the clasp ring are arranged in the annular groove II, and the straight edge segments are exposed outside the annular groove II. The upper rotating assembly is buckled to the base, the arc segments of the clasp ring are limited in the annular groove II of the cylinder, and the straight edge segments are clamped in the annular groove I. Capacitor assembly I comprises anode foil, cathode foil, insulation paper, dielectric layer, positive and negative pins. The anode foil and the cathode foil are provided with insulation paper therebetween, and the anode foil, the cathode foil and the dielectric layer are wound into a roll. The top of the positive pin is connected to the anode foil, and the top of the negative pin is connected to the cathode foil. The dielectric layer is a polytetrafluoroethylene film. The shaping adapter is a circular ring piece, and the outer wall is uniformly provided with six vertical wire grooves.

2. The novel composite thin film capacitor of claim 1, wherein: The positive and negative pins are respectively arranged in the wire grooves.

3. The novel composite thin film capacitor of claim 1, wherein: The wire groove diameter is adapted to the size of the positive and negative pins, and the wire groove clamps the positive and negative pins.

4. The novel composite thin film capacitor of claim 3, wherein: Capacitor assembly II and capacitor assembly III have the same structure as capacitor assembly I. The positive and negative pins of capacitor assembly II and capacitor assembly III are respectively inserted into the wire grooves of the shaping adapters below. The positive and negative pins of capacitor assembly I are inserted into the wire grooves of the three shaping adapters below. The positive and negative pins of capacitor assembly II are inserted into the wire grooves of the two shaping adapters below. The positive and negative pins of capacitor assembly III are inserted into the wire grooves of the one shaping adapter below. The capacitor assembly I, capacitor assembly II and capacitor assembly III are spliced into a rod-shaped assembly through the shaping adapters. The switching access disc is horizontally arranged, and the outer edge is fixedly connected to the inner wall of the cylinder. The switching access disc is provided with six metal contacts, and the top of the metal contact is fixedly connected to the positive or negative pin, and the bottom is movably connected to the positive or negative metal sheet. The clasp ring is provided with an open slot. It also comprises an insulating tape, which fixes and bonds the positive and negative pins in the wire grooves. The inner wall of the bottom of the cylinder is provided with a protruding strip, and the outer wall of the switching access disc is provided with a clamping groove. The protruding strip is arranged in the clamping groove.

5. The novel composite thin film capacitor according to any one of claims 1-4, wherein: The base shell is provided with a red arrow mark, the upper rotating assembly shell is provided with three red arrow marks, when the two arrows are aligned, the metal contact is matched with the positive and negative metal sheets, and one of the capacitor assemblies one, two and three is connected.

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