CN219435708U - Capacitor case and capacitor with enhanced binding ability with filler - Google Patents

Abstract

The utility model discloses a capacitor shell and a capacitor with enhanced binding capacity with filler, and relates to the technical field of capacitors. The capacitor shell with enhanced binding capacity with the filler can avoid loosening or falling of the filler and improve the performance of the capacitor.

Description

Capacitor case and capacitor with enhanced binding ability with filler

Technical Field

The utility model relates to the technical field of capacitors, in particular to a capacitor shell with reinforced binding capacity with filler and a capacitor using the capacitor shell with reinforced binding capacity with filler.

Background

The capacitor comprises a shell, a core, a leading-out end and a filler, wherein the filler is used for filling a gap between the core and the shell, and the reinforcing rib only plays a role in positioning the assembly of the core due to the fact that the inner wall of the shell is smooth or only perpendicular to the reinforcing rib of the inner wall, and the capacitor is simple in structure.

When the capacitor is subjected to high temperature, collision or extrusion for a long time, the phenomenon of separation and cracking easily occurs between the filling material and the inner wall, so that the capacitor is invalid, and the service life of the capacitor is influenced.

Disclosure of Invention

The utility model mainly aims to provide a capacitor shell with reinforced binding capacity with filler, and aims to provide the capacitor shell with reinforced binding capacity with filler, which can avoid loosening or falling of the filler and improve the performance of the capacitor.

In order to achieve the above object, the capacitor shell for reinforcing the binding capacity of the filler provided by the utility model comprises a shell main body, wherein the shell main body is provided with a top opening, two inner side surfaces which are oppositely arranged on the shell main body are respectively provided with a positioning rib, the positioning ribs are provided with a first side surface, a second side surface, a third side surface and a fourth side surface which are sequentially connected, the first side surface is connected with the inner side surface, the third side surface is positioned at one side far away from the inner side surface, the third side surface is parallel to the inner side surface, an included angle theta 1 is formed between the second side surface and the inner side surface, an included angle theta 2 is formed between the fourth side surface and the inner side surface, and at least one of the included angle theta 1 and the included angle theta 2 is an acute angle.

Optionally, the sum of the included angle θ1 and the included angle θ2 is 180 °, and the section shape of the positioning rib is a parallelogram.

Optionally, the included angle θ1 is an acute angle, and the included angle θ2 is an obtuse angle.

Optionally, the included angle θ1 is an obtuse angle, and the included angle θ2 is an acute angle.

Optionally, the included angle θ1 and the included angle θ2 are acute angles, and the section shape of the positioning rib is trapezoid.

Optionally, the included angle θ1 and the included angle θ2 are the same, and the section shape of the positioning rib is isosceles trapezoid.

Optionally, one of the included angle θ1 and the included angle θ2 is an acute angle, the other is a right angle, and the section shape of the positioning rib is a right trapezoid.

Optionally, each inner side is provided with two positioning ribs, and the two positioning ribs are symmetrically arranged.

Optionally, the bottom of the positioning rib extends to the bottom of the housing body, and a distance is provided between the top of the positioning rib and the top of the container housing.

The utility model also proposes a capacitor comprising:

a capacitor case having the reinforcing ability to bond with filler as described above;

a core which is installed in the shell main body from the top opening, and the outer side surface of the core is contacted with the third side surface to realize positioning;

the two extraction ends are respectively connected with two ends of the core in a welding way, and the extraction ends are extracted from the top opening;

and the filling material is filled in the gap between the core and the shell main body.

According to the technical scheme, two inner side surfaces of the shell body which are oppositely arranged are respectively provided with a positioning rib, each positioning rib is provided with a first side surface, a second side surface, a third side surface and a fourth side surface which are sequentially connected, two sides of each positioning rib respectively form an included angle with the inner side surface, and at least one of the two included angles is an acute angle. Because the technical means that at least one acute angle is formed between the positioning ribs and the inner side surface to play a role in buckling is adopted, the technical problem that the capacitor is invalid due to easy separation and breakage between the filling material and the inner wall in the prior art is effectively solved, and the technical effects of reinforcing the binding capacity of the filling material, avoiding loosening or falling of the filling material and improving the performance of the capacitor are further realized.

Drawings

FIG. 1 is a schematic view of a flat bottom structure of a housing body of the present utility model;

FIG. 2 is a schematic view of the structure of the main body of the casing with a circular arc bottom;

FIG. 3 is a schematic view of the structure of the housing body of the present utility model with rounded and flat bottom;

FIG. 4 is a schematic view of a first embodiment of the present utility model;

FIG. 5 is a schematic diagram of a second embodiment of the present utility model;

FIG. 6 is a schematic diagram of a third embodiment of the present utility model;

FIG. 7 is a schematic view of a fourth embodiment of the present utility model;

FIG. 8 is a schematic view of a fifth embodiment of the present utility model;

FIG. 9 is a schematic diagram of a capacitor according to an embodiment of the present utility model;

reference numerals illustrate:

a capacitor 100; a housing main body 10; positioning ribs 11; a first side 111; a second side 112; a third side 113; a fourth side 114; a core 20; a lead-out terminal 30; and a filler 40.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The present utility model proposes a capacitor case with reinforcing and filler bonding capability assembled with a core 20, a lead-out terminal 30 and a filler 40 to form a capacitor 100.

In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.

In the embodiment of the present utility model, as shown in fig. 1, 2, 3 and 4, the capacitor case for reinforcing the bonding capability with the filler includes a case body 10, the case body 10 has a top opening, two inner sides of the case body 10 opposite to each other are respectively provided with a positioning rib 11, the positioning rib 11 has a first side 111, a second side 112, a third side 113 and a fourth side 114 connected in sequence, the first side 111 is connected with the inner side, the third side 113 is located at a side far from the inner side, the third side 113 is parallel to the inner side, an included angle θ1 is formed between the second side 112 and the inner side, an included angle θ2 is formed between the fourth side 114 and the inner side, and at least one of the included angle θ1 and the included angle θ2 is an acute angle.

It will be appreciated that the positioning rib 11 has one or two surfaces and an inner side surface to form an acute angle, thereby playing a role of buckling, when the filler 40 is filled, part of the filler 40 is located at the inner side of the positioning rib 11, part of the filler 40 is located at the outer side of the positioning rib 11, after the filler 40 is solidified, the positioning rib 11 can play a role of hooking, the more the number of the positioning ribs 11 is, the better the anti-loosening or falling effect is, the third side surface 113 of the positioning rib 11 is parallel to the inner side surface, the auxiliary positioning effect can be achieved on the core 20 filled into the shell main body 10, a gap is reserved between the outer side surface of the core 20 and the inner side surface of the shell main body 10, the filling of the filler 40 is facilitated, the filler 40 is generally epoxy resin, in addition, in order to facilitate the assembly of the core 20, the top of the positioning rib 11 is provided with a chamfer, the core 20 can be assembled downwards along the chamfer setting slope, and the convenience is further provided.

According to the technical scheme of the utility model, two inner side surfaces oppositely arranged on the shell main body 10 are respectively provided with a positioning rib 11, the positioning rib 11 is provided with a first side surface 111, a second side surface 112, a third side surface 113 and a fourth side surface 114 which are sequentially connected, two sides of the positioning rib 11 respectively form an included angle with the inner side surfaces, and at least one of the two included angles is an acute angle. Because the technical means that at least one acute angle is formed between the positioning ribs 11 and the inner side surface to play a role in buckling is adopted, the technical problem that the capacitor 100 is invalid due to easy separation and breakage between the filler 40 and the inner wall in the prior art is effectively solved, and the technical effects of enhancing the binding capacity with the filler 40, avoiding loosening or falling of the filler 40 and improving the performance of the capacitor 100 are further realized.

In the embodiment of the present utility model, the positioning rib 11 plays a role in positioning the assembly of the core 20 in addition to enhancing the bonding capability between the housing body 10 and the filler 40, wherein the height of the positioning rib 11 is adapted to the height of the core 20, the bottom of the positioning rib 11 extends to the bottom of the housing body 10, the top of the positioning rib 11 has a distance from the top of the housing body 10, for the core 20 having a shorter height, the height of the positioning rib 11 is about half the height of the housing body 10, and for the core 20 having a higher height, the top of the positioning rib 11 extends upward to a position about 2mm from the top of the housing body 10, so as to facilitate the assembly of the capacitor cover.

In the present utility model, the interior of the housing body 10 approximates to a rectangular cavity structure, i.e. comprises two sets of opposite inner sides, wherein one set of inner sides has a larger area, and the other set of inner sides has a smaller area. In addition, the structure of the present utility model, in which the positioning ribs 11 for hooking up the filler 40 are added to the inner side, is applicable to various types of housing bodies 10, i.e., the housing bodies 10 are all applicable to a circular arc bottom, a flat bottom, or a circular arc flat bottom. The case body 10 shown in fig. 1 has a flat bottom structure, the case body 10 shown in fig. 2 has a circular arc bottom structure, and the capacitor case with reinforcing and filler bonding capability shown in fig. 3 has a rounded flat bottom structure.

It will be appreciated that the greater the number of the positioning ribs 11, the better the anti-loosening or falling effect, and the present utility model takes a single inner side surface provided with two positioning ribs 11 as an example, and five embodiments are provided to further explain the present utility model, and in the following embodiments, the two positioning ribs 11 are symmetrically arranged.

The present utility model proposes a first embodiment, as shown in fig. 4, in which the sum of the included angle θ1 and the included angle θ2 is 180 °, and the cross-sectional shape of the positioning rib 11 is a parallelogram. An included angle theta 1 at the inner side is defined, an included angle theta 2 at the outer side is defined, wherein the included angle theta 1 is an acute angle, and the included angle theta 2 is an obtuse angle. The two positioning ribs 11 positioned on the same side and the inner side form a dovetail groove structure, so that the hooking effect is improved, and after the filler 40 filled between the shell main body 10 and the core 20 is solidified, the filler 40 can be effectively prevented from loosening or falling off. In this embodiment, the specific angles of the included angle θ1 and the included angle θ2 can be adjusted according to actual requirements.

The present utility model proposes a second embodiment, as shown in fig. 5, in which the sum of the included angle θ1 and the included angle θ2 is 180 °, and the cross-sectional shape of the positioning rib 11 is a parallelogram. An included angle theta 1 at the inner side is defined, and an included angle theta 2 at the outer side is defined, wherein the included angle theta 1 is an obtuse angle, and the included angle theta 2 is an acute angle. Compared with the first embodiment, that is, in the first embodiment, two positioning ribs 11 located on the same side are inclined towards the inside of the housing main body 10, an included angle formed between the two positioning ribs 11 is an acute angle, while in the second embodiment, two positioning ribs 11 located on the same side are inclined towards the outside of the housing main body 10, an included angle formed between the two positioning ribs 11 is an obtuse angle, a space formed between the fourth side surface 114 and the inner side surface has a buckling effect, and after the filling 40 filled between the housing main body 10 and the core 20 is solidified, the filling 40 can be effectively prevented from loosening or falling off. In this embodiment, the specific angles of the included angle θ1 and the included angle θ2 can be adjusted according to actual requirements.

In a third embodiment, as shown in fig. 6, the included angle θ1 and the included angle θ2 are acute angles, and the cross section of the positioning rib 11 is trapezoidal. An included angle theta 1 at the inner side is defined, an included angle theta 2 at the outer side is defined, wherein the included angle theta 1 and the included angle theta 2 are the same, and the section shape of the positioning rib 11 is isosceles trapezoid. The third embodiment can be understood as combining the first embodiment with the second embodiment, that is, forming a dovetail groove structure between two positioning ribs 11 on the same side, and forming spaces with a snap action on opposite sides far from the dovetail groove structure, so as to improve the effect of hooking the filler 40, and effectively preventing the filler 40 from loosening or falling after the filler 40 filled between the housing main body 10 and the core 20 is solidified. In this embodiment, the specific angles of the included angle θ1 and the included angle θ2 can be adjusted according to actual requirements.

The present utility model proposes a fourth embodiment, as shown in fig. 7, the cross-section shape of the positioning rib is a right trapezoid. The included angle positioned at the inner side is defined as an included angle theta 1, the included angle positioned at the outer side is defined as an included angle theta 2, wherein the included angle theta 1 is an acute angle, the included angle theta 2 is a right angle, namely, a dovetail groove structure is formed between the two positioning ribs 11 at the same side, the hooking effect is improved, and after the filling material 40 filled between the shell main body 10 and the core 20 is solidified, the filling material 40 can be effectively prevented from loosening or falling. In this embodiment, the specific angle of the included angle θ1 can be adjusted according to actual requirements.

The present utility model proposes a fifth embodiment, as shown in fig. 8, the cross-section shape of the positioning rib is a right trapezoid. The included angle at the inner side is defined as an included angle θ1, the included angle at the outer side is defined as an included angle θ2, wherein the included angle θ2 is an acute angle, the included angle θ1 is a right angle, that is, the inner sides of the two positioning ribs 11 at the same side are parallel to each other, the space formed between the fourth side surface 114 and the inner side surface has a fastening effect, and after the filling material 40 filled between the shell main body 10 and the core 20 is cured, the filling material 40 can be effectively prevented from loosening or falling off. In this embodiment, the specific angle of the included angle θ2 can be adjusted according to actual requirements.

In the above-mentioned five embodiments, as shown in fig. 4, 5, 6, 7 and 8, the chamfer design is performed between two sides of the positioning rib 11 forming an acute angle, so as to avoid scratching the core 20 during the assembly process, for example, in the first embodiment, the chamfer is performed on the edge formed between the second side 112 and the third side 113, in the second embodiment, the chamfer is performed on the edge formed between the third side 113 and the fourth side 114, and the rest of the embodiments are not repeated.

In addition, in the above five embodiments, the height of the positioning ribs 11 can be adjusted according to the height of the core 20, and the specific shape of the housing body 10 can be changed according to the use requirement.

The present utility model also proposes a capacitor 100, as shown in fig. 9, where the capacitor 100 includes a capacitor case with reinforced capability of combining with filler, a core 20, a lead-out terminal 30, and a filler 40, and the capacitor case with reinforced capability of combining with filler includes a case main body 10, and the specific structure of the case main body 10 refers to the foregoing embodiments, and since the capacitor 100 adopts all the technical solutions of all the foregoing embodiments, at least all the beneficial effects brought by the technical solutions of the foregoing embodiments are not repeated herein. Wherein the core 20 is installed into the housing body 10 from the top opening, and the outer side surface of the core 20 contacts with the third side surface 113 to realize positioning; two leading-out ends 30 are respectively welded with two ends of the core 20, and the leading-out ends 30 are led out from the top opening; the filler 40 fills the gap between the core 20 and the case body 10. In the utility model, the other two inner sides without the positioning ribs 11 are provided with the limiting grooves formed by the two spacing ribs arranged at intervals, so that the leading-out end 30 can be limited.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. The utility model provides a strengthen capacitor case with packing binding capacity, includes the shell main part, its characterized in that, the shell main part has open-top, two medial surfaces that the shell main part set up relatively are equipped with the location rib respectively, the location rib has first side, second side, third side and the fourth side that connect gradually, first side with the medial surface is connected, the third side is located and keeps away from one side of medial surface, just the third side with the medial surface is parallel to each other, the second side with form contained angle θ1 between the medial surface, the fourth side with form contained angle θ2 between the medial surface, contained angle θ1 with at least one in the contained angle θ2 is the acute angle.

2. The capacitor case of claim 1, wherein the sum of the included angle θ1 and the included angle θ2 is 180 °, and the cross-sectional shape of the positioning rib is a parallelogram.

3. The capacitor case of claim 2, wherein the included angle θ1 is an acute angle and the included angle θ2 is an obtuse angle.

4. The capacitor casing with enhanced ability to bond with filler according to claim 2, wherein said included angle θ1 is an obtuse angle and said included angle θ2 is an acute angle.

5. The capacitor case of claim 1, wherein the included angle θ1 and the included angle θ2 are acute angles, and the cross-sectional shape of the positioning rib is trapezoidal.

6. The capacitor casing with enhanced filler binding capability according to claim 5, wherein the included angle θ1 and the included angle θ2 are the same, and the cross-sectional shape of the positioning rib is isosceles trapezoid.

7. The capacitor casing with enhanced filler binding capacity according to claim 1, wherein one of the included angle θ1 and the included angle θ2 is an acute angle, the other is a right angle, and the cross-sectional shape of the positioning rib is a right trapezoid.

8. A capacitor casing having enhanced ability to bond with filler according to any one of claims 1 to 7 wherein each of said inner sides is provided with two of said locating ribs, said two locating ribs being symmetrically disposed.

9. The capacitor case of any one of claims 1 to 7, wherein the bottom of the positioning rib extends to the bottom of the case body with a distance between the top of the positioning rib and the top of the case body.

10. A capacitor, the capacitor comprising:

a capacitor case of any one of claims 1 to 9 having reinforcing and filler binding capability;

a core which is installed in the shell main body from the top opening, and the outer side surface of the core is contacted with the third side surface to realize positioning;

the two extraction ends are respectively connected with two ends of the core in a welding way, and the extraction ends are extracted from the top opening;

and the filling material is filled in the gap between the core and the shell main body.