CN201946435U - Film capacitor - Google Patents

Abstract

The utility model relates to a film capacitor, which comprises a plastic shell and a core with pin wires. One end of the shell is open. The core is fixed in the shell after the core is cast by epoxy resin. CP (cord pendant) wires or copper wires on the core stretch out of the opening of the shell. A cover body which is fixed on the shell is arranged at the opening of the shell. Fixing holes which are used for fixing the CP wires or the copper wires on the core and preventing the CP wires or the copper wires from being tilted are arranged on the cover body. A pair of limiting columns are arranged at the lower end of the cover body and can prevent the core from floating up when the epoxy resin is cast, and the installation and the fixation of the core are facilitated; positioning blocks which are used for supporting and fixing the cover body at the opening of the shell are arranged on the internal side wall of the shell.

Description

A kind of film capacitor

[technical field]

The utility model relates to field of capacitor manufacture, relates in particular to a kind of film capacitor.

[background technology]

Existing film capacitor, as shown in Figure 1, film capacitor comprises that one has uncovered shell 1, fuse 2 by the uncovered film capacitor of packing into, direct casting epoxy resin 3, with fuse and on to draw needlework (4,4 ') fixing in the enclosure, the described needlework that draw are CP line or copper cash, thisly draw the needlework mode, cause in the film capacitor course of processing, not just do not drawing needlework by solidifying epoxy resin 3 fixed housing open-mouths, two needle gages that draw between the needlework are inaccurate, the fraction defective of product is higher, significant wastage the raw material of product, increased the cost of product.

[utility model content]

It is a kind of simple in structure that the utility model provides, and installation and processing is convenient, and two needle gages that draw between the needlework are stable, not just or draw the film capacitor that needlework skew effectively do not preventing to draw needlework.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of film capacitor comprises shell and have the fuse that draws needlework, and described shell one end is uncovered, fuse by behind the poured with epoxy resin fixing in the enclosure, draw the open-mouth that needlework stretch out shell on the fuse; Open-mouth at shell is provided with a lid that is fixed on the shell, and lid is provided with fixedly and draws needlework and draw the fixing hole that needlework tilt on the fuse.

Aforesaid a kind of film capacitor, described shell madial wall are provided with lid are supported the locating piece that is positioned the shell open-mouth.

Aforesaid a kind of film capacitor, described lid lower end is provided with a pair of limited post, and described limited post prevents the fuse come-up when casting epoxy resin.

Aforesaid a kind of film capacitor, described lid is the middle loop configuration that has through hole.

Aforesaid a kind of film capacitor, described lid are " worker " font structure that upper and lower side has through hole.

Aforesaid a kind of film capacitor, described shell adopts plastic material.

Aforesaid a kind of film capacitor, the needlework that draw of described fuse are CP line or copper cash.

Advantage of the present utility model:

The utility model is provided with one at the open-mouth of shell and fixedly draws the lid of needlework by fixing hole, be fixedly mounted on the open-mouth of shell by lid, what the lid fixing hole was passed in restriction draws needlework skew in an inclined direction, not just or draw needlework and skew effectively do not prevent to draw needlework, guarantee that two draw needle gage between the needlework and stablize constantly, improve the one-time formed acceptance rate of product.

[description of drawings]

Fig. 1 is the sectional structure schematic diagram of prior art film capacitor;

The front view that Fig. 2 partly analyses and observe for the utility model shell mechanism;

Fig. 3 is the end view of Fig. 2;

Fig. 4 is the vertical view of Fig. 2;

Fig. 5 is the vertical view of lid among the utility model embodiment one;

Fig. 6 is the A-A cutaway view of Fig. 5;

Fig. 7 is the vertical view of lid among the utility model embodiment two;

Fig. 8 is the B-B cutaway view of Fig. 7;

Fig. 9 is the vertical view of the utility model embodiment one;

Figure 10 is the part sectional structure schematic diagram of the utility model embodiment one;

Figure 11 is the vertical view of the utility model embodiment two.

[embodiment]

Embodiment one

As Fig. 2 to Fig. 6, and Fig. 9 and shown in Figure 10, present embodiment provides a kind of film capacitor, comprise the shell 5 that adopts plastic material and have the fuse 7 that draws needlework (6,6 '), the described needlework (6,6 ') that draw are CP line or copper cash, described shell 5 one ends are uncovered, and fuse 7 is fixed in the shell 5 after pouring into a mould by epoxy resin 8, and CP line on the fuse or copper cash stretch out the open-mouth of shell 5; Open-mouth at shell 5 is provided with a lid 9 that is fixed on the shell 5, lid is provided with CP line on the fixing fuse or copper cash (6,6 ') and prevents the CP line or fixing hole 90 that copper cash tilts, lid 9 lower ends are provided with a pair of limited post 91, described limited post 91 prevents fuse 7 come-ups when casting epoxy resin 8, be convenient to installing and fixing of fuse 7; On shell 5 madial walls, be provided with lid 9 is supported the locating piece 50 that is positioned the shell open-mouth.

Described lid 9 is the middle loop configuration that has through hole 92, and its through hole 92 is convenient to casting epoxy resin 8.

Embodiment two

As Fig. 7, Fig. 8 and shown in Figure 11, embodiment two is with embodiment one unique difference, and as required, described lid adopts upper and lower side to have " worker " font structure of through hole, by the convenient casting epoxy resin 8 of through hole 93.

Film capacitor of the present utility model can also have other distortion, as adopting the fixedly connected lid of other modes; In a word, do conspicuous change, and other every change that does not break away from patent essence of the present invention all should be included within the described scope of claim according to the prompting of above-mentioned example.

Claims (7)

1. film capacitor comprises shell and has the fuse that draws needlework that described shell one end is uncovered, fuse by behind the poured with epoxy resin fixing in the enclosure, draw the open-mouth that needlework stretch out shell on the fuse; It is characterized in that,

Open-mouth at shell is provided with a lid that is fixed on the shell, and lid is provided with fixedly and draws needlework and draw the fixing hole that needlework tilt on the fuse.

2. a kind of film capacitor according to claim 1 is characterized in that, described shell madial wall is provided with lid is supported the locating piece that is positioned the shell open-mouth.

3. a kind of film capacitor according to claim 1 is characterized in that, described lid lower end is provided with a pair of limited post, and described limited post prevents the fuse come-up when casting epoxy resin.

4. according to the described a kind of film capacitor of any claim of claim 1 to 3, it is characterized in that described lid is the middle loop configuration that has through hole.

5. according to the described a kind of film capacitor of any claim of claim 1 to 3, it is characterized in that described lid is " worker " font structure that upper and lower side has through hole.

6. a kind of film capacitor according to claim 1 is characterized in that, described shell adopts plastic material.

7. a kind of film capacitor according to claim 1 is characterized in that, the needlework that draw of described fuse are CP line or copper cash.

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