Novel capacitor shell

Abstract

The utility model relates to the technical field of capacitors, and particularly discloses a novel capacitor shell, which comprises a shell body, the top of the shell body is open, a plurality of groups of electrode copper bars are arranged in the shell body along the horizontal direction, and a plurality of capacitor cores are arranged among each group of electrode copper bars. The top of each electrode copper bar is provided with two pins corresponding to one capacitor core, the edge of the shell is uniformly provided with a plurality of ceramic capacitor banks, the shell is provided with grounding terminals corresponding to the positions of the ceramic capacitor banks, an aluminum plate is embedded in a bottom plate of the shell, and the bottom plate of the shell is provided with a plurality of electrode copper bars. According to the utility model, effective heat dissipation can be carried out on the capacitor cores, and common mode interference (EMI) in a circuit can be suppressed.

Description

Technical Field

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

[0002] Generally, the housing of a metallized polypropylene film DC support capacitor does not have good heat dissipation function and cannot effectively suppress common mode interference, so it needs to be improved. Content of the Utility Model

[0003] To solve the problems mentioned in the background art, the purpose of the utility model is to provide a novel capacitor housing.

[0004] To achieve the above object, the technical solution of the utility model is as follows:

[0005] A novel capacitor housing includes a housing. The top of the housing is open. Inside the housing, a plurality of groups of electrode copper bars are arranged horizontally. Between each group of electrode copper bars, several capacitor cores are installed. At the top of each electrode copper bar, two pins are provided corresponding to one capacitor core. A plurality of ceramic capacitor groups are evenly arranged on the edge of the housing. At the position corresponding to each ceramic capacitor group on the housing, a grounding terminal is installed. An aluminum plate is embedded in the bottom plate of the housing. The installation positions of several capacitor cores are all within the aluminum plate.

[0006] The beneficial effect of the utility model is that: an aluminum heat dissipation plate is embedded at the bottom of the housing, which can effectively dissipate heat from the capacitor cores. A plurality of groups of ceramic capacitor groups are arranged on the edge of the housing, which can suppress the common mode interference (EMI) in the circuit. Description of the Drawings

[0007] Figure 1 Isometric view of the first orientation of the embodiment of the utility model;

[0008] Figure 2 Isometric view of the second orientation of the embodiment of the utility model;

[0009] Figure 3 Exploded view of the embodiment of the utility model.

[0010] Explanation of the drawing reference numerals: 1. Housing, 11. First convex part, 12. Second convex part, 13. Third convex part, 14. Fourth convex part, 2. Electrode copper bar, 21. Pin, 3. Capacitor core, 4. First fixed grounding terminal, 5. Second fixed grounding terminal, 6. Movable grounding terminal, 7. Aluminum plate, 8. Ceramic capacitor group. Detailed Embodiment

[0011] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model belong to the protection scope of the present utility model.

[0012] As Figures 1-3 shown, a new type of capacitor housing includes a housing 1. The housing 1 is in the shape of a cuboid and has an open top. Inside the housing 1, three groups of electrode copper bars 2 are arranged at intervals along the long side of the housing 1 itself. Two capacitor cores 3 are connected between each group of electrode copper bars 2. At the top of each electrode copper bar 2, two pins 21 are provided corresponding to one capacitor core 3. Ten groups of ceramic capacitor groups 8 are evenly distributed on the edge of the housing 1. Grounding terminals are installed at the positions corresponding to each group of ceramic capacitor groups 8 on the housing 1. Specifically, the grounding terminals include a first fixed grounding terminal 4, a second fixed grounding terminal 5, and six movable grounding terminals 6. Two first protrusions 11 are provided in the middle of the first long side of the housing 1. One second protrusion 12 is provided at each end of the first long side of the housing 1. One third protrusion 13 is provided in the middle of each of the two short sides of the housing 1. One fourth protrusion 14 is provided at each end of the second long side of the housing 1. Eight of the ceramic capacitor groups 8 are respectively installed in the first protrusions 11, second protrusions 12, third protrusions 13, and fourth protrusions 14. The other two ceramic capacitor groups are installed on the second long side of the housing 1. Holes are opened at the bottoms of the second protrusions 12, third protrusions 13, and fourth protrusions 14. The movable grounding terminal 6 is in an L shape, and an installation hole is opened at one end thereof. The six movable grounding terminals 6 are respectively fixed in the second protrusions 12, third protrusions 13, and fourth protrusions 14 by M4 hexagon socket head cap screws (not shown in the figure). The ends of the six movable grounding terminals 6 with holes are respectively in contact with the outside of the second protrusions 12, third protrusions 13, and fourth protrusions 14. The ends of the six movable grounding terminals 6 without holes respectively pass through the second protrusions 12, third protrusions 13, and fourth protrusions 14 and extend into them. The first fixed grounding terminal 4 is fixed inside the first long side of the housing 1. The second fixed grounding terminal 5 is fixed inside the second long side of the housing 1. The first pins and second pins are respectively provided at the tops of the first fixed grounding terminal 4 and the second fixed grounding terminal 5. An aluminum plate 7 is inlaid in the bottom plate of the housing 1. The installation positions of the six capacitor cores 3 are all located inside the aluminum plate 7.

[0013] In actual assembly, after the capacitor core 3, the electrode copper bar 2, the ceramic capacitor bank 8, the grounding terminal, etc. are all installed, epoxy resin is injected into the shell to complete the glue sealing. Since the bottom of the shell 1 is inlaid with a heat dissipation aluminum plate 7, the capacitor core 3 can be effectively cooled. A plurality of ceramic capacitor banks are arranged at the edge of the shell 1, which can suppress the common mode interference (EMI) in the circuit. The second protrusion 12, the third protrusion 13 and the fourth protrusion 14 are provided to facilitate the installation and fixation of the capacitor shell.

[0014] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A new type of capacitor housing, including a housing, the top of the housing is open, and it is characterized in that, Inside the housing, multiple groups of electrode copper bars are arranged horizontally. Between each group of electrode copper bars, several capacitor cores are to be installed. At the top of each electrode copper bar, two pins are provided corresponding to one capacitor core. Along the edge of the housing, several ceramic capacitor groups are evenly arranged. At the position corresponding to each ceramic capacitor group on the housing, a grounding terminal is installed. Inside the bottom plate of the housing, an aluminum plate is inlaid. The installation positions of several capacitor cores are all located within the aluminum plate.

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