CN214410989U

CN214410989U - Low-noise stable metallized polypropylene film capacitor

Info

Publication number: CN214410989U
Application number: CN202120467598.0U
Authority: CN
Inventors: 郑全富
Original assignee: Huai'an Shiquan Technology Co ltd
Current assignee: Huai'an Shiquan Technology Co ltd
Priority date: 2021-03-03
Filing date: 2021-03-03
Publication date: 2021-10-15
Anticipated expiration: 2031-03-03

Abstract

The utility model discloses a low noise stable form metallization polypropylene membrane capacitor relates to capacitor technical field, including protecting crust and stitch, two fixed cover are equipped with to the inside of protecting crust, and the outside fixed cover of protecting crust is equipped with the acoustic celotex tube, two fixed cover is equipped with metallization polypropylene membrane between the fixed joint. This low noise stable form metallization polypropylene film capacitor, cooperation through activity joint and spring and stitch and fixture block is used, make this polypropylene film capacitor separate stitch and fixture block and capacitor body, the staff can make the activity connect stretch out and extension spring from fixed joint's inside through the pulling activity joint, insert the fixture block in the inside draw-in groove of activity joint again, loosen the activity and connect, the activity connects the inside of withdrawal fixed joint under the effect of spring force and dies the fixture block card, thereby it is fixed with the stitch, make impaired stitch of change and fixture block that this polypropylene film capacitor can be convenient.

Description

Low-noise stable metallized polypropylene film capacitor

Technical Field

The utility model relates to a condenser technical field specifically is a low noise stable form metallization polypropylene film capacitor.

Background

A capacitor is an electrical component formed by two conductors in close proximity to each other with a non-conductive insulating medium in between. When a voltage is applied across the two plates of the capacitor, the capacitor stores charge. The capacitance of the capacitor is numerically equal to the ratio of the amount of charge on one conductive plate to the voltage between the two plates. The basic unit of capacitance of a capacitor is farad (F). In the circuit diagram, a capacitance element is generally denoted by a letter C, and a capacitor plays an important role in circuits such as tuning, bypassing, coupling, and filtering. The tuning circuit of the transistor radio is used, the coupling circuit and the bypass circuit of the color television are also used, the polypropylene film capacitor is of an inductive structure, the polypropylene film capacitor is formed by winding polypropylene serving as a dielectric medium and aluminum foil serving as electrodes, a lead wire adopts a tinned copper clad steel wire, and the capacitor is encapsulated by epoxy resin.

Firstly, once the pins of the common polypropylene film capacitor are damaged, the whole element cannot work normally, the pins are difficult to replace, and only the whole capacitor can be replaced, so that serious resource waste is caused.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a low noise stable form metallization polypropylene film capacitor has solved the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a low noise stable form metallization polypropylene film capacitor, includes protecting crust and stitch, two fixed cover are equipped with to the inside fixed cover of protecting crust, and the outside fixed cover of protecting crust is equipped with the acoustic celotex pipe, two fixed cover is equipped with metallization polypropylene film between the fixed joint, and the inside movable sleeve of fixed joint is equipped with movable joint, fixedly connected with spring between movable joint and the fixed joint, the both sides fixed mounting of protecting crust has cover joint board, the outside movable sleeve of cover joint board is equipped with joint board, the outside fixed mounting of joint board has two limiting plates, the top welding of stitch has the fixture block.

Optionally, the length value of the sound insulation pipe is greater than that of the metallized polypropylene film, and the heat dissipation holes are uniformly distributed outside the sound insulation pipe.

Optionally, a movable groove matched with the movable joint is formed in the fixed joint, a clamping groove matched with the clamping block is formed below the movable joint, and a groove is formed in the outer portion of the movable joint.

Optionally, the outside of limiting plate is provided with the lug, the inside of cup jointing board seted up with limiting plate assorted fixed slot, and the outside of cup jointing board seted up with lug assorted through opening.

Optionally, the arc curved surface matched with the stitch has all been seted up to joint board and the outside of cup jointing board, and joint board and cup jointing board all adopt insulating material to make.

Optionally, the pins and the clamping blocks, the movable joints and the fixed joints are made of metal, and epoxy resin is coated on the outer portion of the protective shell.

The utility model provides a low noise stable form metallization polypropylene film capacitor possesses following beneficial effect:

1. this low noise stable form metallization polypropylene film capacitor, cooperation through activity joint and spring and stitch and fixture block is used, make this polypropylene film capacitor separate stitch and fixture block and capacitor main part, the staff can make activity joint stretch out and extension spring from fixed joint's inside through the pulling activity joint, insert the fixture block in the inside draw-in groove of activity joint again, loosen the activity joint, the activity joint retracts fixed joint's inside and dies the fixture block card under the effect of spring force, thereby it is fixed with the stitch, make impaired stitch of change and fixture block that this polypropylene film capacitor can be convenient, the waste of resource has been reduced.

2. This low noise stable form metallization polypropylene film capacitor, cooperation through joint board and limiting plate and cover joint board is used, make this polypropylene film capacitor insert the inside back that the activity connects with the fixture block, the surface of stitch and the surface laminating of cover joint board, later insert the limiting plate in the fixed slot that the cover joint board outside was seted up and promote the joint board, expose in the opening of the outside lug of limiting plate from the cover joint board both sides, make the joint board with the cover joint board with the stitch centre gripping, the fixed of supplementary stitch, make this polypropylene film capacitor's stability obtain promoting.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the movable joint and the pin of the present invention;

FIG. 3 is a schematic view of the exterior of the present invention;

fig. 4 is a schematic structural view of the socket plate and the clamping plate of the present invention.

In the figure: 1. a protective shell; 2. a clamping and connecting plate; 3. a spring; 4. fixing the joint; 5. a metallized polypropylene film; 6. a movable joint; 7. sleeving and connecting plates; 8. a stitch; 9. a clamping block; 10. a limiting plate; 11. a sound insulating tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 4, the present invention provides a technical solution: a low-noise stable metallized polypropylene film capacitor comprises a protective shell 1 and pins 8, wherein two fixed joints 4 are fixedly sleeved inside the protective shell 1, a sound insulation pipe 11 is fixedly sleeved outside the protective shell 1, the length value of the sound insulation pipe 11 is larger than that of a metallized polypropylene film 5, heat dissipation holes which are uniformly distributed are formed outside the sound insulation pipe 11, the length value of the sound insulation pipe 11 is larger than that of the metallized polypropylene film 5, so that the sound insulation pipe 11 can wrap the main working position of the capacitor, an effective sound insulation effect is achieved, noise generated during the working of the capacitor is reduced, the heat dissipation holes formed outside the sound insulation pipe 11 can assist the heat dissipation of the capacitor, the principle and the using process of the sound insulation pipe 11 are the same as those of the prior art, no repeated description is given here, the metallized polypropylene film 5 is fixedly sleeved between the two fixed joints 4, and the inner part of the fixed joint 4 is movably sleeved with a movable joint 6, a spring 3 is fixedly connected between the movable joint 6 and the fixed joint 4, the inner part of the fixed joint 4 is provided with a movable groove matched with the movable joint 6, the lower part of the movable joint 6 is provided with a clamping groove matched with the clamping block 9, the outer part of the movable joint 6 is provided with a groove, the movable joint 6 can slide in the inner part of the fixed joint 4 through the movable groove, after the movable joint 6 is drawn out from the inner part of the fixed joint 4, the clamping groove below the movable joint 6 is drawn out and drives the spring 3 to stretch, the clamping block 9 is inserted into the clamping groove below the movable joint 6, then the movable joint 6 is loosened, the movable joint 6 retracts into the inner part of the fixed joint 4 under the action of the elastic force of the spring 3 and fixes the clamping block 9, the groove arranged on the outer part of the movable joint 6 can facilitate a worker to draw out the movable joint 6, sleeving plates 7 are fixedly installed on two sides of a protective shell 1, a clamping plate 2 is movably sleeved outside the sleeving plate 7, arc-shaped curved surfaces matched with pins 8 are arranged on the outer portions of the clamping plate 2 and the sleeving plate 7 respectively, the clamping plate 2 and the sleeving plate 7 are made of insulating materials, the arc-shaped curved surfaces arranged on the outer portions of the clamping plate 2 and the sleeving plate 7 can improve the clamping and fixing effect of the clamping plate 2 and the sleeving plate 7 on the pins 8, the clamping plate 2 and the sleeving plate 7 are made of insulating materials to avoid influencing the working condition of a capacitor, two limiting plates 10 are fixedly installed on the outer portion of the clamping plate 2, bumps are arranged on the outer portions of the limiting plates 10, fixing grooves matched with the limiting plates 10 are formed in the inner portion of the sleeving plate 7, through openings matched with the bumps are formed in the outer portion of the sleeving plate 7, a worker can insert the limiting plates 10 on the outer portion of the clamping plate 2 into the fixing grooves in the inner portion of the sleeving plate 7, after push away joint board 2, expose in the through opening of 7 both sides of cup jointing up to the outside lug of limiting plate 10, so make joint board 2 with cup joint board 7 with the centre gripping of stitch 8, supplementary stitch 8 with fixture block 9 fixed, the top welding of stitch 8 has fixture block 9, stitch 8 and fixture block 9 and movable joint 6 and fixed joint 4 all adopt the metal to make, epoxy has been paintd to the outside of protecting crust 1, the epoxy of painting in the outside of protecting crust 1 can guarantee protecting crust 1's leakproofness, guarantee the operational environment of its inside components and parts, stitch 8 and fixture block 9 and movable joint 6 and fixed joint 4 adopt the metal to make the electric conductivity that can guarantee the condenser.

In conclusion, when the low-noise stable metallized polypropylene film capacitor is used, the groove on the outer portion of the movable joint 6 is buckled to draw the movable joint 6 out of the fixed joint 4, the clamping groove below the movable joint 6 is drawn out to drive the spring 3 to stretch, the damaged element is taken down, the well-finished pin 8 and the clamping block 9 are taken out, the clamping block 9 is inserted into the clamping groove below the movable joint 6, the movable joint 6 is loosened, the movable joint 6 retracts into the fixed joint 4 under the action of the elastic force of the spring 3, meanwhile, the outer surface of the pin 8 is attached to the outer surface of the socket plate 7, the limiting plate 10 is inserted into the fixing groove formed in the socket plate 7 to push the clamping plate 2 until the convex blocks on the outer portion of the limiting plate 10 are exposed out of the through openings on the two sides of the socket plate 7, so that the pin 8 is clamped by the clamping plate 2 and the socket plate 7 to fix the pin 8 and the clamping block 9 stably, and finishing the working process of replacing the pins 8 and the fixture blocks 9 of the whole low-noise stable metallized polypropylene film capacitor.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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 thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A low noise stable form metallized polypropylene film capacitor, includes protecting the shell (1) and stitch (8), its characterized in that: the utility model discloses a protective housing, including protective housing (1), fixed cover and movable joint, the inside fixed cover of protective housing (1) is equipped with two fixed joint (4), and the outside fixed cover of protective housing (1) is equipped with sound insulation pipe (11), two fixed cover is equipped with metallization polypropylene membrane (5) between fixed joint (4), and the inside movable cover of fixed joint (4) is equipped with movable joint (6), fixedly connected with spring (3) between movable joint (6) and fixed joint (4), the both sides fixed mounting of protective housing (1) has cover fishplate bar (7), the outside movable cover of cover fishplate bar (7) is equipped with fishplate bar (2), the outside fixed mounting of fishplate bar (2) has two limiting plate (10), the top welding of stitch (8) has fixture block (9).

2. A low noise, stable metallized polypropylene film capacitor as claimed in claim 1 wherein: the length value of the sound insulation pipe (11) is larger than that of the metallized polypropylene film (5), and heat dissipation holes which are uniformly distributed are formed in the outer portion of the sound insulation pipe (11).

3. A low noise, stable metallized polypropylene film capacitor as claimed in claim 1 wherein: the movable joint is characterized in that a movable groove matched with the movable joint (6) is formed in the fixed joint (4), a clamping groove matched with the clamping block (9) is formed in the lower portion of the movable joint (6), and a groove is formed in the outer portion of the movable joint (6).

4. A low noise, stable metallized polypropylene film capacitor as claimed in claim 1 wherein: the outer portion of the limiting plate (10) is provided with a convex block, a fixing groove matched with the limiting plate (10) is formed in the sleeving connection plate (7), and a through opening matched with the convex block is formed in the outer portion of the sleeving connection plate (7).

5. A low noise, stable metallized polypropylene film capacitor as claimed in claim 1 wherein: the arc-shaped curved surface matched with the pins (8) is arranged outside the clamping plate (2) and the sleeve plate (7), and the clamping plate (2) and the sleeve plate (7) are made of insulating materials.

6. A low noise, stable metallized polypropylene film capacitor as claimed in claim 1 wherein: the pin (8), the clamping block (9), the movable joint (6) and the fixed joint (4) are all made of metal, and epoxy resin is coated on the outer portion of the protective shell (1).