CN210325540U

CN210325540U - Super-thin box type polypropylene film capacitor for radio charging

Info

Publication number: CN210325540U
Application number: CN201921497974.XU
Authority: CN
Inventors: 贺裕萍
Original assignee: Shenzhen Jinghao Capacitor Co ltd
Current assignee: Shenzhen Jinghao Capacitor Co ltd
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2020-04-14
Anticipated expiration: 2029-09-09

Abstract

The utility model discloses an ultra-thin type box-type radio fills uses polypropylene film capacitor, include the electric capacity shell and set up in the inside electric capacity main part of electric capacity shell, the electric capacity main part includes the core and the CP wire of being connected with core both ends electricity, still is equipped with the electrode slice between CP wire and the core, and electrode slice surface covering is equipped with metal spraying material, still is equipped with heat conduction coating between core and electric capacity shell, and heat conduction coating one side is connected with the laminating of electric capacity shell inner wall, and the opposite side is connected with the laminating of core surface, and core surface covering is equipped with the polypropylene film, and the CP wire passes the electric capacity shell and. The utility model provides a SMD condenser overall dimension of radio among the prior art irregular, can not reach ultra-thin type technical requirement's problem.

Description

Super-thin box type polypropylene film capacitor for radio charging

Technical Field

The utility model relates to an electronic components field, in particular to ultra-thin type box-shaped radio fills uses polypropylene film capacitor.

Background

Two conductors close to each other with a layer of non-conductive insulating medium in between constitute the capacitor. Capacitors play an important role in circuits such as tuning, bypassing, coupling, filtering, etc. The tuning circuit of transistor radio, CD player and recorder is used, and the coupling circuit and by-pass circuit of colour TV set are also used. 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 existing wireless charging adopts a patch type capacitor, the appearance size is irregular, the price of the patch capacitor is nearly 10 times longer on the original basis, and meanwhile, the patch type capacitor is limited by the fact that the structure cannot be used for mass production, so that the yield is low, and the ultra-thin technical requirement cannot be met.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the main object of the present invention is to provide an ultra-thin box-type radio charging polypropylene film capacitor, which aims to solve the problem that the radio patch capacitor in the prior art has irregular outer dimension and can not meet the ultra-thin technical requirement.

In order to realize the above-mentioned purpose, the utility model provides an ultra-thin type box-type radio fills uses polypropylene film capacitor, include the electric capacity shell and set up in the inside electric capacity main part of electric capacity shell, the electric capacity main part includes the core and the CP wire of being connected with core both ends electricity, still be equipped with the electrode slice between CP wire and the core, electrode slice surface covering is equipped with spouts the gold material, still be equipped with the heat conduction coating between core and electric capacity shell, heat conduction coating one side is connected with the laminating of electric capacity shell inner wall, the opposite side is connected with the laminating of core surface, core surface covering is equipped with the polypropylene film, the CP wire passes electric capacity.

In one embodiment, the metal spraying material is a copper-containing metal spraying layer.

In one embodiment, the capacitor housing has a maximum width of 4 mm.

In one embodiment, the capacitor housing is a high density moisture resistant plastic housing.

In one embodiment, the polypropylene film is a high sheet resistance pure aluminum polypropylene film.

The utility model has the advantages as follows:

the capacity of bearing current of the capacitor is enhanced under the high-frequency condition, the thickness is ultrathin, the occupied space is saved, the capacitor core is arranged in the ultrathin plastic box, the appearance consistency is strong, the moisture-proof effect is achieved, the pure aluminum high-sheet resistance material is evaporated on the polypropylene film, the loss value is reduced, the loss value is small under the high-frequency condition, and the temperature rise is small.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a perspective structural diagram of the core and the components connected with the core according to the present invention.

Fig. 2 is the schematic diagram of the overall structure of the capacitor case and the capacitor main body in the present invention.

[ main parts/assembly reference numerals ] description

Reference numerals	Name (R)	Reference numerals	Name (R)
				1	Capacitor shell	31	Metal spraying material
2	CP wire	32	Electrode plate
				3	Capacitor body	33	Polypropylene film
30	Core

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.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

The description in this application as relating to "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Example 1:

referring to fig. 1, the polypropylene film 33 capacitor for ultra-thin box-type radio charging comprises a capacitor shell 1 and a capacitor main body 3 arranged inside the capacitor shell 1, wherein the capacitor main body 3 comprises a core 30 and a CP wire 2 electrically connected with two ends of the core 30, an electrode plate 32 is further arranged between the CP wire 2 and the core 30, a metal spraying material 31 is covered on the surface of the electrode plate 32, a polypropylene film 33 is covered on the outer surface of the core 30, and the CP wire 2 penetrates through the capacitor shell 1 to be communicated with the outside.

The ultrathin thickness saves the occupied space, the capacitor core 30 is assembled in the ultrathin plastic box, the appearance consistency is strong, the moisture-proof effect is good, the pure aluminum high-sheet resistance material is evaporated on the polypropylene film 33, the loss value is reduced, the loss value is small under the high-frequency condition, the temperature rise is small, and the current bearing capacity of the capacitor is enhanced under the high-frequency condition.

Referring to fig. 1, preferably, the metal spray 31 is a copper-containing metal spray layer.

Referring to fig. 1, the capacitor case 1 preferably has a maximum width of 4 m.

Referring to fig. 1, the capacitor case 1 is preferably a high-density moisture-proof plastic case.

Referring to fig. 1, the polypropylene film 33 is preferably a high sheet resistance pure aluminum polypropylene film.

The aluminum material has large current resistance, reduces the surface temperature rise, and the pure aluminum material capacitor with high sheet resistance has high current resistance below 5 ℃.

The working principle of the utility model is as follows:

the current bearing capacity is enhanced under the high-frequency condition, the thickness is ultrathin, the occupied space is saved, the capacitor core 30 is assembled in the ultrathin plastic box, the appearance consistency is strong, the moisture-proof effect is good, the pure aluminum high-sheet resistance material is evaporated on the polypropylene film 33, the loss value is reduced, the loss value is small under the high-frequency condition, and the temperature rise is small.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. The polypropylene film capacitor for the ultra-thin box-type radio charging is characterized by comprising a capacitor shell and a capacitor main body arranged in the capacitor shell, wherein the capacitor main body comprises a core and CP (carbon fiber) leads electrically connected with two ends of the core, an electrode plate is arranged between the CP leads and the core, a metal spraying material is covered on the surface of the electrode plate, a heat conducting coating is arranged between the core and the capacitor shell,

one side of the heat-conducting coating is attached to the inner wall of the capacitor shell, the other side of the heat-conducting coating is attached to the surface of the core, a polypropylene film covers the outer surface of the core, and the CP wire penetrates through the capacitor shell and is communicated with the outside.

2. The ultra-thin cassette radio-charging polypropylene film capacitor of claim 1 wherein the metallization is a copper-containing metal spray coating.

3. The ultra-thin box radio-charging polypropylene film capacitor of claim 1, wherein the capacitor case has a maximum width of 4 mm.

4. The ultra-thin, compact, radio-charging polypropylene film capacitor of claim 1 wherein said capacitor housing is a high density moisture-proof plastic housing.

5. The ultra-thin cassette radio-charging polypropylene film capacitor of claim 1, wherein the polypropylene film is a high sheet resistance pure aluminum polypropylene film.

6. The ultra-thin cassette radio-charging polypropylene film capacitor of claim 1 wherein the thermally conductive coating is a pure copper thermally conductive coating.