Integral capacitor structure

Abstract

The utility model aims to solve the problems that the conventional plastic shell capacitor is poor in heat dissipation and the capacitor with a metal shell is easy to break down. The utility model provides an integral capacitor structure, which comprises a metal shell for bearing a capacitor, the device further comprises a plastic shell and a bottom plate. Wherein the bottom plate is provided with metal shells of a plurality of capacitors, and the metal shells on the bottom plate are arranged according to a set array; the plastic shell and the metal shell are fixed through detachable connection; the plastic shell is located on the side, away from the bottom plate, of the metal shell. The inner side of the plastic housing is provided with a capacitor, and the plastic housing is also internally provided with an insulating filler covering the capacitor. A lead of the capacitor faces one side far away from the bottom plate; heat dissipation can be guaranteed in the metal shell part, the pressure resistance performance can be guaranteed in the plastic shell part close to the upper portion, and breakdown of the portion, connected with an external circuit, of the lead is prevented.

Description

Technical Field

[0001] The utility model relates to the field of capacitor equipment, in particular to an integral capacitor structure. Background Art

[0002] Capacitors are energy storage components that are widely used in various circuit systems. Existing capacitor shells are mainly divided into two types, namely metal shells and plastic shells. Among them, capacitors with plastic shells usually cause a high temperature rise in the capacitor due to the thermal conductivity of plastic, which reduces the service life of the capacitor. Metal shell capacitors, such as those shown in the patent with authorization announcement number CN116798774A, are prone to voltage breakdown when used in high-voltage circuits due to the conductive properties of some metals. In addition, the cost of a fully wrapped metal shell will increase accordingly compared to a plastic shell. Therefore, a low-cost capacitor structure with good heat dissipation and high voltage resistance is needed. Summary of the invention

[0003] The purpose of the utility model is to solve the deficiencies of the prior art and provide an integrated capacitor structure.

[0004] In order to solve the above problems, the utility model adopts the following solutions:

[0005] An integral capacitor structure comprises a metal shell for carrying a capacitor; a plastic shell and a bottom plate; wherein the bottom plate is provided with a plurality of metal shells of the capacitors, and the metal shells on the bottom plate are arranged in a set array; the plastic shell and the metal shell are fixed by a detachable connection; the plastic shell is located at a side of the metal shell away from the bottom plate; a capacitor is arranged inside the plastic shell, and an insulating filler covering the capacitor is also arranged inside the plastic shell; and the leads of the capacitor face toward a side away from the bottom plate.

[0006] Furthermore, the metal shell is an aluminum shell; the aluminum shell and the bottom plate are made in one piece.

[0007] Furthermore, the aluminum shell on the bottom plate is a square shell.

[0008] Furthermore, the plastic shell and the metal shell are connected by sleeve connection or snap connection.

[0009] Furthermore, the aluminum shells on the bottom plate are arranged side by side or in parallel.

[0010] Furthermore, the aluminum shells on the bottom plate are spaced apart at a set interval.

[0011] Furthermore, the filler in the plastic shell is insulating glue or resin.

[0012] Furthermore, the bottom plate is also provided with a circular hole for connecting an external device.

[0013] Furthermore, the leads of the capacitor are electrode sheets, and two electrode sheets are provided on one capacitor; the two electrode sheets pass through the filler and extend from a side of the plastic shell away from the bottom plate.

[0014] Furthermore, the leads are respectively located on both sides of the end of the plastic shell.

[0015] The beneficial effects of the utility model are:

[0016] By arranging a plastic shell on the metal shell, wherein the lead of the capacitor is arranged on one side of the plastic shell, the metal shell portion close to the bottom plate can ensure heat dissipation, while the plastic shell portion close to the top can ensure pressure resistance, preventing the lead from being broken down at the part connected to the external circuit;

[0017] By providing an insulating filler covering the capacitor on the inner side of the plastic shell, the insulation requirement is met on the one hand, and the metal shell and the capacitor inside the plastic shell are fixed on the other hand;

[0018] By arranging a circular hole corresponding to the metal shell on the bottom plate, it is possible to connect with external devices when a single metal shell is removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of Example 1;

[0020] Figure 2 This is a front view of the overall structure of Example 1;

[0021] Figure 3 It is a bottom view of the overall structure of Example 1;

[0022] Figure 4 This is a left view of the overall structure of Example 1.

[0023] Description of the symbols in the accompanying drawings: metal shell 1, plastic shell 2, base plate 3, lead 4, round hole 5, insulating filler 6. DETAILED DESCRIPTION

[0024] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0025] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and the figures only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0026] Embodiment 1:

[0027] like Figures 1 to 4 As shown, an integral capacitor structure includes a metal shell 1 for carrying a capacitor; it also includes a plastic shell 2 and a bottom plate 3; wherein a plurality of metal shells 1 of the capacitor are arranged on the bottom plate 3, and the metal shells 1 on the bottom plate 3 are arranged in a set array; the plastic shell 2 and the metal shell 1 are fixed by a detachable connection, and it should be noted that the shapes of the plastic shell 2 and the metal shell 1 correspond, and the plastic shell 2 is located at one end of the metal shell 1 away from the bottom plate 3; the two ends of the plastic shell 2 are connected, and a capacitor is arranged in the plastic shell 2, and a filler covering the capacitor is also arranged in the plastic shell 2; the lead 4 of the capacitor faces the side away from the bottom plate 3.

[0028] The plastic shell 2 is connected to the metal shell 1 by sleeve or snap connection, which is convenient for installing the plastic shell 2 and the metal shell 1; in this example, the plastic shell 2 and the metal shell 1 are connected by snap connection; the length of the plastic shell 2 penetrating into the metal shell 1 is a set value; a protruding or recessed first snap-in portion is provided on the inner side of the metal shell 1, and a second snap-in portion corresponding to the first snap-in portion is provided on the outer side of the plastic shell 2; wherein the first snap-in portion may be a recessed hole, and the second snap-in portion may be a corresponding straight-arm snap.

[0029] The metal shell 1 is an aluminum shell; the aluminum shell is made integrally with the bottom plate 3. The aluminum shells on the bottom plate 3 are arranged side by side or in parallel; in this example, the aluminum shells on the bottom plate 3 are arranged side by side, and four aluminum shells are arranged side by side on one bottom plate 3, and adjacent aluminum shells are spaced at a set distance to ensure a safe distance between adjacent capacitors.

[0030] The aluminum shell on the bottom plate 3 is a square shell, and the interior of the aluminum shell is hollow, and is used to place the capacitor structure. It should be noted that the capacitor structure is an existing device.

[0031] The insulating filler 6 in the plastic shell 2 is an insulating glue or resin, wherein the resin includes polyester resin, epoxy resin, etc. The insulating filler 6 realizes insulation on the one hand, and fixes the capacitor inside the metal shell 1 and the plastic shell 2 on the other hand.

[0032] The bottom plate 3 is also provided with a circular hole 5 for connecting an external device, and the circular hole 5 is mainly used as a threaded connection hole; the circular hole 5 corresponds to the position of the metal shell 1 on the bottom plate 3; in this example, the circular hole 5 is located on both sides of the shell away from the adjacent metal shell 1, so as to facilitate the fixation of the capacitor and the external device through the circular hole 5 when separating a single or other number of capacitors.

[0033] The lead 4 of the capacitor is an electrode sheet, and two electrode sheets are arranged on one capacitor; the two electrode sheets extend from the side of the plastic shell 2 away from the bottom plate 3 through the filler. In this example, the electrode sheet is an L-shaped plate as a whole, one end of the electrode sheet extends into the inner side of the plastic shell 2 to connect with the capacitor inside the metal shell 1, and the other end of the metal sheet is located outside the plastic shell 2, wherein the ends of the two metal sheets located outside the plastic shell 2 are separated from each other, increasing the spacing between the leads 4, and the two leads 4 are respectively located on both sides of the end of the plastic shell 2, also to increase the spacing between the leads 4.

[0034] During the implementation process, a plastic shell 2 is arranged on the metal shell 1, wherein a lead 4 of the capacitor is arranged on one side of the plastic shell 2, so that heat dissipation can be ensured in the metal shell 1 part, and the pressure resistance performance can be ensured in the part of the plastic shell 2 near the top, thereby preventing the lead 4 from being broken down at the part connected to the external circuit; an insulating filler 6 covering the capacitor is arranged on the inner side of the plastic shell 2, so that on the one hand, the insulation requirements are met, and on the other hand, the capacitor inside the metal shell 1 and the plastic shell 2 is fixed; and a circular hole 5 corresponding to the metal shell 1 is arranged on the bottom plate 3, so that when a single metal shell 1 is removed, it can also be connected to an external device.

[0035] The above description is only a specific example of the utility model and does not constitute any limitation to the utility model. Obviously, for professionals in this field, after understanding the content and principle of the utility model, it is possible to make various modifications and changes in form and details without departing from the principle and structure of the utility model, but these modifications and changes based on the idea of ​​the utility model are still within the scope of protection of the claims of the utility model.

Claims

1. An integrated capacitor structure, comprising a metal shell (1) for carrying a capacitor; characterized in that: It also comprises a plastic shell (2) and a bottom plate (3); wherein a plurality of metal shells (1) carrying capacitors are arranged on the bottom plate (3), and the metal shells (1) on the bottom plate (3) are arranged in a set array; the plastic shell (2) and the metal shell (1) are fixed by a detachable connection; the plastic shell (2) is located on a side of the metal shell (1) away from the bottom plate (3); a capacitor is arranged on the inside of the plastic shell (2), and an insulating filler (6) covering the capacitor is also arranged inside the plastic shell (2); and the lead wire (4) of the capacitor faces the side away from the bottom plate (3).

2. The integrated capacitor structure according to claim 1, characterized in that: The metal shell (1) is an aluminum shell; the aluminum shell and the bottom plate (3) are made in one piece.

3. The integrated capacitor structure according to claim 2, characterized in that: The aluminum shell on the bottom plate (3) is a square shell.

4. The integrated capacitor structure according to claim 1, characterized in that: The plastic shell (2) and the metal shell (1) are connected by sleeve connection or snap connection.

5. The integrated capacitor structure according to claim 1, characterized in that: The aluminum shells on the bottom plate (3) are arranged side by side or in parallel.

6. The integrated capacitor structure according to claim 5, characterized in that: The aluminum shells on the bottom plate (3) are spaced apart at a set distance.

7. The integrated capacitor structure according to claim 1, characterized in that: The insulating filler (6) in the plastic shell (2) is insulating glue or resin.

8. The integrated capacitor structure according to claim 1, characterized in that: The bottom plate (3) is also provided with a circular hole (5) for connecting an external device; the circular hole (5) corresponds to the position of the metal shell (1) on the bottom plate (3).

9. The integrated capacitor structure according to claim 1, characterized in that: The lead wire (4) of the capacitor is an electrode sheet, and two electrode sheets are provided on one capacitor; the two electrode sheets pass through the filler and extend from a side of the plastic shell (2) away from the bottom plate (3).

10. The integrated capacitor structure according to claim 9, characterized in that: The leads (4) are respectively located on both sides of the end of the plastic shell (2).

Images