CN211907251U - Capacitor with shell - Google Patents

Abstract

The utility model discloses a capacitor with shell, include: a capacitor core and a housing; the capacitor core is provided with two copper sheets as leading-out electrodes, the two copper sheets are respectively connected to the gold spraying layers at two ends of the capacitor core through copper strips, and the copper sheets are provided with clamping pins; one end of the shell is of an open structure, and a hollow inner cavity is formed inside the shell and used for placing the capacitor core; the thickness of the top surface of the shell is suitable for being clamped and fixed with the clamping pins, the inner side of the top surface of the shell is provided with a convex clamping rib, and the width of the clamping rib is the same as the distance between the two copper sheets; the capacitor core is fixed in the shell through the clamping pins in a clamping mode, and the two copper sheets are respectively abutted to the two sides of the clamping ribs. The utility model discloses a fixed copper sheet expose size and copper sheet interval, guaranteed condenser electrode connection and performance of using, reduced cost of labor and tool cost, improved production efficiency, shortened delivery cycle, more be fit for mass production, and whole integrated degree is high, connection stability is strong.

Description

Capacitor with shell

Technical Field

The utility model relates to a condenser field, concretely relates to belt housing condenser.

Background

A film capacitor has many excellent characteristics, and thus is a capacitor having excellent performance. Its main heat properties are as follows: no polarity, high insulation resistance, excellent frequency characteristics, wide frequency response and low dielectric loss.

The utility model discloses the object of main application is power electronic capacitor, and power capacitor is the condenser that is used for electric power system and electrical equipment, has characteristics such as high-power, high voltage, frequency characteristic are good, generate heat low, the ability reinforce that overflows. After the energizing process is completed, the gold spraying layer and the copper sheet are welded together through the copper strip, so that the copper sheet becomes an extraction electrode of the capacitor. In the prior art, a jig is usually used for fixing the position of the copper sheets, and then the core can be encapsulated (filling materials such as epoxy resin and the like are filled in the shell for sealing), so that the jig is used for positioning, higher labor cost and manufacturing cost are brought, the efficiency is lower, and the production period is longer. In addition, the prepared capacitor does not have the installation and fixing functions, installation and fixation can be completed only by assistance of other adapter pieces, extra material preparation is needed, and the consumed assembly time is long.

SUMMERY OF THE UTILITY MODEL

For overcoming the not enough of prior art, the utility model aims to provide a take condenser of casing realizes the location of copper sheet through drawing forth the installation cooperation between copper sheet, electric capacity core and the casing, guarantees that the size that exposes of copper sheet and copper sheet interval size are qualified.

The utility model discloses a following technical scheme realizes:

a capacitor with a housing, comprising: a capacitor core and a housing; the capacitor core is provided with two copper sheets as leading-out electrodes, the two copper sheets are respectively connected to the gold spraying layers at two ends of the capacitor core through copper strips, and the copper sheets are provided with clamping pins; one end of the shell is of an open structure, and a hollow inner cavity is formed inside the shell and used for placing the capacitor core; the thickness of the top surface of the shell is suitable for being clamped and fixed with the clamping pins, the inner side of the top surface of the shell is provided with a convex clamping rib, and the width of the clamping rib is the same as the distance between the two copper sheets; the capacitor core is fixed in the shell through the clamping pins in a clamping mode, and the two copper sheets are respectively abutted to the two sides of the clamping ribs.

Furthermore, both sides of the shell are also integrally provided with a fixed seat, and a fixed groove for connecting a fastener is formed in the fixed seat.

Furthermore, the bottom of the shell is provided with a reinforcing rib convenient for the shell to be stably placed, and the bottom of the reinforcing rib is a horizontal plane.

Further, the opening width of the hollow inner cavity formed by the shell is larger than the bottom width of the hollow inner cavity.

Furthermore, the connection position of the fixed seat and the side surface of the shell is of a chamfer structure.

Compared with the prior art, the utility model discloses the beneficial effect that can reach does:

(1) when the capacitor core is arranged in the shell, the copper sheet is clamped and fixed on the shell through the clamping pin structure, so that the exposed size of the copper sheet extending out of the shell is fixed, and the capacitor core and the shell are more stably arranged and are not easy to loosen; (2) the two copper sheets are limited by the clamping rib structure on the inner side of the shell, so that the distance between the copper sheets is guaranteed not to shift or deflect due to vibration and impact.

The utility model discloses a collocation design on copper sheet and casing has fixed the size and the copper sheet interval that expose of copper sheet, has guaranteed the performance of condenser electrode connection and use. Compare and adopt the tool to fix a position the copper sheet in prior art, the utility model discloses just accomplish the location in step in the assembly, reduced cost of labor and tool cost, improved production efficiency, shortened delivery cycle, more be fit for carrying out mass production, holistic integrated level is high moreover, connection stability is strong.

Drawings

FIG. 1 is a schematic view of a capacitor core;

fig. 2 is a schematic view of the overall assembly of the present invention;

FIG. 3 shows a first perspective view of the housing (bottom side down);

FIG. 4 is a second perspective view of the housing (bottom side up);

figure 5 shows a cross-sectional view of the housing.

In the figure: 10. a capacitor core; 11. spraying a gold layer; 12. a copper sheet; 13. clamping a pin; 20. a housing; 21. clamping ribs; 22. a fixed seat; 221. fixing grooves; 23. reinforcing ribs; 24. and (5) chamfering structure.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified 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; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The utility model discloses a capacitor with a shell, which comprises a capacitor core 10 and a shell 20. Referring to fig. 1, two copper sheets 12 are arranged on the capacitor core 10 as lead-out electrodes, the two copper sheets 12 are respectively connected to the gold-sprayed layers 11 at two ends of the capacitor core 10 through copper strips to serve as lead-out electrodes of the capacitor, and the copper sheets 12 are provided with clamping pins 13. Referring to fig. 3 to 4, one end of the housing 20 is an open structure, and a hollow cavity is formed inside the housing for accommodating the capacitor core 10; the thickness of the top surface of the shell 20 is suitable for the clamping and fixing of the clamping pins 13, the inner side of the top surface of the shell 20 is further provided with protruding clamping ribs 21, and the width of each clamping rib 21 is the same as the distance between the two copper sheets 12.

Referring to fig. 2, the connection relationship between the capacitor core 10 and the housing 20 is: the capacitor core 10 is accommodated in the hollow cavity of the housing 20 and is clamped and fixed in the housing 20 through the clamping pins 13 on the copper sheets 12, and meanwhile, the two copper sheets 12 are respectively abutted against two sides of the clamping ribs 21. The clamping pins 13 are used for fixing the capacitor core 10 and the shell 20, and simultaneously, the exposed size and the position distance of the copper sheet 12 are fixed through the limit of the clamping pins 13; the clamping ribs 21 are used for further limiting the copper sheets 12 on the two sides, so that the function of fixing the space between the copper sheets is realized, and the space between the copper sheets is prevented from shifting or skewing due to vibration and impact.

Preferably, referring to fig. 3, the two sides of the housing 20 are further integrally provided with a fixing seat 22, and the fixing seat 22 is provided with a fixing groove 221 for connecting a fastener, which is used for: when installing electric capacity, only need to connect in fixed slot 221 like fasteners such as bolt, can accomplish the installation, make electric capacity itself take the installation fixed function, and no longer need assist fixedly with the help of other adaptor, reduced the assemble duration, improved the integrated degree of electric capacity shell.

Preferably, referring to fig. 4, the bottom of the housing 20 is provided with a reinforcing rib 23 for stably placing the housing 20, and the bottom of the reinforcing rib 23 is a horizontal plane for improving the stability of the support of the housing 20, so that the housing is not easy to tip over or topple over during production and encapsulation.

Preferably, referring to FIG. 5, the opening width of the hollow cavity formed by the housing 20 is larger than the bottom width of the hollow cavity, and simply, the width of the inner side of the housing 20 is reduced inward to form a structure with a wide opening and a narrow bottom (L2 < L1; L1 is the opening width, and L2 is the bottom width in FIG. 5). The benefits of this embodiment are: firstly, after the capacitor core 10 is completely installed in the shell 20, the metal spraying surface at the bottom of the capacitor core 10 is tightly matched with two ends of the bottom of the hollow inner cavity, so that the gap allowance of the looseness of the capacitor core 10 is reduced, the capacitor core 10 is not inclined, the capacitor core 10 is ensured to be installed in the center, and the copper sheet 12 is further ensured to be led out in the center and not inclined; the capacity of the hollow inner cavity is reduced while the capacitive performance is not influenced, the using amount of epoxy materials can be saved in the glue filling process of the capacitor, and the weight of the capacitor is reduced.

Preferably, referring to fig. 3, the connecting portion between the fixing seat 22 and the side surface of the housing 20 is a chamfered structure 24, so that the contact area between the fixing seat 22 and the housing 20 is increased, and the stress strength and the connection stability of the fixing seat 22 are enhanced.

Through the detailed explanation of above-mentioned embodiment, can understand, the utility model discloses a arrange the design on copper sheet and casing, fixed the size that exposes and the copper sheet interval of copper sheet, guaranteed the performance of capacitor electrode connection and use. Compare and adopt the tool to fix a position the pin in prior art, the utility model discloses just accomplish the location in step in the assembly, reduced cost of labor and tool cost, improved production efficiency, shortened delivery cycle, more be fit for mass production, holistic integrated level is high moreover, connection stability is strong.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (5)

1. A capacitor with a housing, comprising: a capacitor core and a housing; the capacitor core is provided with two copper sheets as leading-out electrodes, the two copper sheets are respectively connected to the gold spraying layers at two ends of the capacitor core through copper strips, and the copper sheets are provided with clamping pins; one end of the shell is of an open structure, and a hollow inner cavity is formed inside the shell and used for placing the capacitor core; the thickness of the top surface of the shell is suitable for being clamped and fixed with the clamping pins, the inner side of the top surface of the shell is provided with a convex clamping rib, and the width of the clamping rib is the same as the distance between the two copper sheets; the capacitor core is fixed in the shell through the clamping pins in a clamping mode, and the two copper sheets are respectively abutted to the two sides of the clamping ribs.

2. The capacitor with a case as claimed in claim 1, wherein fixing bases are integrally formed at both sides of the case, and fixing grooves for connecting fasteners are formed at the fixing bases.

3. The capacitor with a case as claimed in claim 2, wherein the bottom of the case is provided with a rib for facilitating the stable placement of the case, and the bottom of the rib is a horizontal plane.

4. The case capacitor of claim 1, wherein the housing forms a hollow interior having an opening width greater than a bottom width of the hollow interior.

5. The capacitor with a case as claimed in claim 2, wherein a junction of the holder and the side of the case is a chamfered structure.

Images