A capacitor plastic case

Abstract

The utility model relates to the technical field of capacitors, and in particular to a capacitor plastic shell, comprising a shell, wherein the shell is integrally formed by a shell wall and a shell bottom, the shell bottom is at the bottom of the inner side of the shell wall and is an arc-shaped structure, a raised retaining rib is provided on the surface of the shell bottom, two symmetrically arranged positioning ribs are fixed on the shorter side wall inside the shell wall, a positioning channel for inserting a positioning angle on a core body is formed between the two positioning ribs, a chamfered surface for guiding the positioning angle on the core body to enter is provided on the top of the positioning rib, and the chamfered surfaces on the two positioning ribs are overall in a trumpet shape; the capacitor plastic shell, by setting the shell bottom to an arc-shaped structure, can reduce the gap between the shell bottom and the bottom of the core body, can reduce the amount of filling material in the subsequent filling, so as to achieve the purpose of saving filling material, thereby reducing the overall production cost, and the bottom of the core body can contact the raised retaining rib, so that a gap is left between the core body and the bottom of the shell, so that the filling material can evenly wrap the core body, so as to improve product performance.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitors, in particular to a capacitor plastic shell. Background Art

[0002] There are many options for capacitor shell materials, among which plastic material is a commonly used one. Plastic material has the characteristics of light weight, corrosion resistance, and good insulation performance. It is suitable for the manufacture of capacitor shells and can effectively protect the internal components of the capacitor. However, the existing capacitor plastic shells still have the following defects: 1. The bottom of the shell is designed to be flat. The core is placed in the shell. There is a large gap between the bottom of the core and the shell, which requires more filling material (epoxy resin) to fill, resulting in waste; 2. The bottom of the core will be close to the bottom of the shell, resulting in the contact part between the core and the bottom of the shell not wrapped with filling material, thereby affecting the product performance of the capacitor; 3. When the core is placed in the plastic shell, there is a lack of positioning structure, and the core will be skewed, affecting subsequent use. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides a capacitor plastic case, which solves the technical problems of excessive use of filling material inside the existing capacitor plastic case, incomplete wrapping of the core body and crooked installation of the core body.

[0004] In order to solve the above-mentioned technical problems, the utility model provides the following technical solutions: a capacitor plastic case, including a shell, wherein the shell is integrally formed by a shell wall and a shell bottom, the shell bottom is at the bottom of the inner side of the shell wall and is an arc-shaped structure, the surface of the shell bottom is provided with raised retaining ribs, and two symmetrically arranged positioning ribs are fixed on the shorter side wall inside the shell wall, and a positioning channel for inserting the positioning corner on the core body is formed between the two positioning ribs.

[0005] Preferably, the top of the positioning rib is provided with an oblique cut surface for guiding the positioning angle on the core body to enter, and the oblique cut surfaces on the two positioning ribs are generally in a trumpet shape.

[0006] Preferably, the number of the raised retaining ribs is at least two.

[0007] Preferably, a reinforcing rib is integrally formed between the bottom of the shell wall and the bottom of the shell bottom.

[0008] Preferably, the bottom surface of the shell wall and the lowest point of the shell bottom are at the same horizontal position.

[0009] Preferably, a mounting seat is integrally formed on one side wall of the shell, and a mounting hole is provided on the mounting seat.

[0010] By means of the above technical solution, the utility model provides a capacitor plastic case having at least the following

[0011] Beneficial effects:

[0012] 1. The capacitor plastic case can reduce the gap between the bottom of the case and the bottom of the core by setting the bottom of the case to an arc-shaped structure, and can reduce the amount of filling material in the subsequent filling process, so as to save filling material and reduce the overall production cost.

[0013] 2. The capacitor plastic case is provided with raised retaining ribs. When the core is placed in the case, the bottom of the core can contact the raised retaining ribs, leaving a gap between the core and the bottom of the case, so that the filling material can evenly wrap the core to improve product performance.

[0014] 3. The capacitor plastic case is provided with positioning ribs. When the core is installed, the positioning angle is used to insert it along the positioning channel between the positioning ribs, so that the core installation can be positioned to avoid the core from tilting in the shell, ensure the consistency of the overall appearance, and also improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the bottom of the shell of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the front section of the housing of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the core of the utility model installed inside the shell.

[0020] Reference numerals:

[0021] 1. Shell; 11. Shell wall; 12. Shell bottom; 2. Raised retaining ribs; 3. Reinforcing ribs; 31. Beveled surface; 32. Positioning channel; 4. Positioning ribs; 5. Mounting seat; 51. Mounting hole; 6. Core; 61. Positioning angle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Capacitors are electronic components used to store charge and release electrical energy, and are widely used in various circuits. Capacitors are usually composed of two conductive plates separated by a layer of insulating material, while the outer shell of the capacitor is designed to protect the internal components and improve the durability and stability of the capacitor.

[0024] Based on the technical defects of the existing technology that the capacitor plastic shell uses too much filling material, the core 6 is not fully wrapped, and the core 6 is installed crookedly, please refer to Figure 1-Figure 4 The utility model provides a capacitor plastic case. By setting the shell bottom 12 to an arc structure, the gap between the shell bottom 12 and the bottom of the core 6 can be reduced, and the amount of filling material can be reduced in the subsequent filling, so as to achieve the purpose of saving filling material. The shell 1 is integrally formed by the shell wall 11 and the shell bottom 12. The shell bottom 12 is at the bottom of the inner side of the shell wall 11 and is an arc structure. The surface of the shell bottom 12 is provided with a raised retaining rib 2. Two symmetrically arranged positioning ribs 4 are fixed on the shorter side wall inside the shell wall 11. A positioning channel 32 for inserting the positioning corner 61 on the core 6 is formed between the two positioning ribs 4. When installing the core 6, the positioning corner 61 of the core 6 is inserted along the positioning channel 32 between the positioning ribs 4. After the core 6 is completely installed, the filling material is poured into the shell 1. Since the bottom of the core 6 is in contact with the raised retaining rib 2, a gap will be left between the core 6 and the bottom of the shell 1, so that the filling material can evenly wrap the core 6, and finally wait for the filling material to cool down.

[0025] In order to facilitate the smooth entry of the positioning angle 61 of the core body 6 into the positioning channel 32, a bevel surface 31 is provided on the top of the positioning rib 4 to guide the positioning angle 61 on the core body 6 to enter. The bevel surfaces 31 on the two positioning ribs 4 are generally in a trumpet shape. In this way, even if the positioning angle 61 on the core body 6 is deflected, under the guidance of the bevel surface 31, the core body 6 can be installed accurately without any skewing.

[0026] To ensure that the core body 6 remains stable in the housing 1 after installation, there are at least two raised retaining ribs 2, which can provide a more stable support for the core body 6.

[0027] In order to improve the strength of the shell 1 itself, a reinforcing rib 3 is integrally formed between the bottom of the shell wall 11 and the bottom of the shell bottom 12 to increase the compressive strength of the shell 1 .

[0028] To avoid the problem that the shell bottom 12 protrudes from the shell wall 11 and causes the bottom of the shell 1 to be uneven, the bottom surface of the shell wall 11 and the lowest point of the shell bottom 12 are at the same horizontal position, so that the shell bottom 12 and the bottom of the shell wall 11 are level for subsequent installation and use.

[0029] In order to facilitate installation and fixation of the housing 1, a mounting seat 5 is integrally formed on one side wall of the housing 1. The mounting seat 5 is provided with a mounting hole 51. The housing 1 is fixed through the mounting hole 51 so as to install the capacitor.

[0030] It can be known from the above embodiments that when installing the core body 6, the positioning angle 61 of the core body 6 is inserted along the positioning channel 32 between the positioning ribs 4. After the core body 6 is completely installed, the filling material is poured into the shell 1. Since the bottom of the core body 6 is in contact with the raised retaining rib 2, a gap will be left between the core body 6 and the bottom of the shell 1, so that the filling material can evenly wrap the core body 6, and finally wait for the filling material to cool down.

[0031] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A capacitor plastic case, comprising a housing (1), characterized in that: The shell (1) is formed integrally of a shell wall (11) and a shell bottom (12); the shell bottom (12) is located at the bottom of the inner side of the shell wall (11) and has an arc-shaped structure; a raised retaining rib (2) is provided on the surface of the shell bottom (12); two symmetrically arranged positioning ribs (4) are fixedly provided on the shorter side wall inside the shell wall (11); a positioning channel (32) is formed between the two positioning ribs (4) for inserting a positioning angle (61) on the core body (6) into.

2. The capacitor plastic case according to claim 1, characterized in that: The top of the positioning rib (4) is provided with an inclined surface (31) for guiding the positioning angle (61) on the core body (6) to enter, and the inclined surfaces (31) on the two positioning ribs (4) are in a trumpet shape as a whole.

3. The capacitor plastic case according to claim 1, characterized in that: The number of the raised retaining ribs (2) is at least two.

4. The capacitor plastic case according to claim 1, characterized in that: A reinforcing rib (3) is integrally formed between the bottom of the shell wall (11) and the bottom of the shell bottom (12).

5. The capacitor plastic case according to claim 1, characterized in that: The bottom surface of the shell wall (11) and the lowest point of the shell bottom (12) are at the same horizontal position.

6. The capacitor plastic case according to claim 1, characterized in that: A mounting seat (5) is integrally formed on one side wall of the housing (1), and a mounting hole (51) is provided on the mounting seat (5).

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