Rectifier bridge with plastic shell positioning function

Abstract

The utility model aims to solve the problem of inaccurate positioning of a shell and a base in an existing rectification structure. The utility model provides a rectifier bridge with a plastic shell positioning function. The rectifier bridge comprises a plastic shell, a base, a rectification chip and an electrode, the rectification chip is arranged on the base; the electrode is welded on the base or the rectification chip; the electrode is connected with the rectification chip; the rectification chip and the electrode are positioned on the inner side of the plastic shell; a plurality of convex or concave first clamping structures are arranged on the edge of the base; a second clamping structure matched with the clamping structure on the edge of the base is arranged on the plastic shell; alignment connection of the Suzhou and the base is facilitated, and position deviation of the plastic shell is avoided.

Description

Technical Field

[0001] The utility model relates to the field of semiconductor rectifier devices, in particular to a rectifier bridge with plastic shell positioning. Background Art

[0002] The existing rectifier bridge is usually directly set on the base, and a shell is also set on the base to limit the position of the rectifier bridge and protect the rectifier bridge, such as the content shown in the patent with authorization announcement number CN213213333U. However, in the existing connection scheme between the shell and the base, the shell is usually directly pressed on the base, and there is no matching structure between the shell and the base to help the shell position. It is placed entirely by feeling or experience. This can easily lead to different positions of the shells in various products after the shell is fixed, and there are deviations, and even cause the shells of some products to be seriously offset, affecting the placement of the rectifier bridge. Therefore, a rectifier bridge structure that can help position the shell is needed. Summary of the invention

[0003] The utility model aims to solve the deficiencies of the prior art and provide a rectifier bridge with plastic shell positioning.

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

[0005] A rectifier bridge with plastic shell positioning comprises a plastic shell, a base, a rectifier chip and an electrode; the rectifier chip is arranged on the base; the electrode is welded and arranged on the base or the rectifier chip; the electrode is connected to the rectifier chip; the plastic shell is arranged on the base, and the rectifier chip and the electrode are located on the inner side of the plastic shell; the edge of the base is provided with a plurality of protruding or recessed first clamping structures; the plastic shell is provided with a second clamping structure that cooperates with the clamping structure at the edge of the base.

[0006] Furthermore, the first clamping structure on the base is a concave groove; the clamping structure on the plastic shell is a protruding buckle; and the buckle is inserted into the groove to achieve connection.

[0007] Furthermore, the base is in a square shape as a whole; the plastic shell is a square shell corresponding to the base, and both ends of the plastic shell are conductive.

[0008] Furthermore, the base is provided with four grooves; the four grooves are distributed in pairs on both sides of the base; and a protruding buckle corresponding to the groove is provided at one end of the plastic shell close to the base.

[0009] Furthermore, the plastic shell is also filled with a filler for stabilizing the electrode.

[0010] Furthermore, the filler is epoxy resin.

[0011] Furthermore, the electrode is provided with a clamping portion connected to the filler.

[0012] Furthermore, the clamping portion is a bent fixing sheet.

[0013] Furthermore, two opposite edges of the base are respectively provided with connection areas extending outward from the base; the connection areas are used to connect with an external structure.

[0014] Furthermore, the connection area is a triangular area, and a connection hole is provided on the connection area.

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

[0016] By providing a first clamping structure on the base and a corresponding second clamping structure on the plastic shell, the alignment and connection of the two are facilitated to avoid positional deviation of the plastic shell;

[0017] By arranging a fixing sheet bent toward one side of the inserting sheet on the inserting sheet of the electrode, the electrode can be more stable when connected with the perfusion filler. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of Example 1;

[0019] Figure 2 The overall structure of Example 1 explodes Figure 1 ;

[0020] Figure 3 This is a schematic diagram of the connection between the plastic shell and the base of Example 1;

[0021] Figure 4 is a schematic diagram of the electrode of Example 1;

[0022] Description of the symbols in the accompanying drawings: base 1, first clamping structure 11, connection area 12, plastic shell 2, second clamping structure 21, rectifier chip 3, electrode 4, fixing plate 41. DETAILED DESCRIPTION

[0023] 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.

[0024] 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.

[0025] Embodiment 1:

[0026] like Figures 1 to 4 As shown, a rectifier bridge with plastic shell positioning includes a plastic shell 2, a base 1, a rectifier chip 3 and an electrode 4; the rectifier chip 3 is arranged on the base 1; the electrode 4 is welded and arranged on the base 1 or the rectifier chip 3; the electrode 4 is connected to the rectifier chip 3; in this example, the electrode 4 is directly arranged on the base 1, and the electrode 4 and the rectifier chip 3 are connected through an external wire or a copper bridge; the plastic shell 2 is arranged on the base 1, and the rectifier chip 3 and the electrode 4 are wrapped on the inner side of the plastic shell 2; the edge of the base 1 is provided with a plurality of raised or recessed first clamping structures 11; the plastic shell 2 is provided with a second clamping structure 21 that cooperates with the clamping structure at the edge of the base 1.

[0027] The base 1 is in the shape of a square sheet as a whole; the plastic shell 2 is a square shell corresponding to the base 1, the two ends of the plastic shell 2 are conductive, and the rectifier chip 3 and the electrode 4 are located inside the plastic shell 2; the plastic shell 2 is also provided with a filler for protecting and fixing the rectifier chip 3 and the electrode 4, and in this example, the filler is epoxy resin. It should be noted that the base 1 is mainly used to support structures such as the plastic shell 2 and the rectifier chip 3, so the shape of the base 1 is not limited to a square. In some other embodiments, the base 1 can be circular, elliptical, etc.

[0028] In this example, the first clamping structure 11 on the base 1 is a concave groove, wherein the groove is a square groove; the clamping structure on the plastic shell 2 is a raised square buckle; the buckle is inserted into the groove to achieve the connection and positioning of the base 1 and the plastic shell 2. The base 1 is provided with four grooves; the four grooves are distributed in pairs on both sides of the base 1; and the plastic shell 2 is provided with a raised buckle corresponding to the groove at one end close to the base 1.

[0029] The electrode 4 is provided with a clamping part connected with the filler; the clamping part is a bent fixing sheet 41, wherein the fixing sheet 41 and the electrode 4 are integrated, a square sheet structure is cut out of the electrode 4, and the square sheet structure is bent to form the fixing sheet 41. In some other embodiments, a through hole can also be provided on the electrode 4 to serve as the clamping part between the electrode 4 and the filler, because the initial form of the filler is liquid, and the liquid filler can fit closely with the electrode 4 after solidification, so as to fix the electrode 4.

[0030] The two opposite edges of the base 1 are also provided with connection areas 12 extending outward from the base 1 ; the connection areas 12 are used to connect with external structures. The connection areas 12 are triangular areas, and connection holes are provided on the connection areas 12 .

[0031] During the implementation process, a first clip structure 11 is provided on the base 1, and a corresponding second clip structure 21 is provided on the plastic shell 2 to facilitate the alignment and connection of the two and avoid positional displacement of the plastic shell 2; a fixing sheet 41 bent toward one side of the plug-in sheet is provided on the plug-in sheet of the electrode 4 to make it more stable when connected to the perfusion filler.

[0032] 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. A rectifier bridge with a plastic shell positioning, comprising a plastic shell (2), a base (1), a rectifier chip (3) and an electrode (4); the rectifier chip (3) is arranged on the base (1); the electrode (4) is welded and arranged on the base (1) or the rectifier chip (3); the electrode (4) is connected to the rectifier chip (3); the plastic shell (2) is arranged on the base (1), and the rectifier chip (3) and the electrode (4) are located on the inner side of the plastic shell (2); characterized in that: The edge of the base (1) is provided with a plurality of protruding or recessed first clamping structures (11); and the plastic shell (2) is provided with a second clamping structure (21) that cooperates with the clamping structure at the edge of the base (1).

2. A rectifier bridge with molded case positioning according to claim 1, characterized in that: The first clamping structure (11) on the base (1) is a concave groove; the clamping structure on the plastic shell (2) is a protruding buckle; the buckle is inserted into the groove to achieve connection.

3. A rectifier bridge with molded case positioning according to claim 2, characterized in that: The base (1) is square in shape as a whole; the plastic shell (2) is a square shell corresponding to the base (1), and both ends of the plastic shell (2) are conductive.

4. A rectifier bridge with molded case positioning according to claim 3, characterized in that: The base (1) is provided with four grooves; the four grooves are distributed in pairs on both sides of the base (1); and a protruding buckle corresponding to the groove is provided at one end of the plastic shell (2) close to the base (1).

5. A rectifier bridge with molded case positioning according to claim 3, characterized in that: The plastic shell (2) is also filled with a filler for stabilizing the electrode (4).

6. A rectifier bridge with molded case positioning according to claim 5, characterized in that: The filler is epoxy resin.

7. A rectifier bridge with molded case positioning according to claim 5 or 6, characterized in that: The electrode (4) is provided with a clamping portion connected to the filler.

8. A rectifier bridge with molded case positioning according to claim 7, characterized in that: The clamping portion is a bent fixing sheet (41).

9. A rectifier bridge with molded case positioning according to claim 4, characterized in that: The base (1) is also provided with connection areas (12) extending outwards of the base (1) on two opposite side edges thereof; the connection areas (12) are used for connection with an external structure.

10. A rectifier bridge with molded case positioning according to claim 9, characterized in that: The connection area (12) is a triangular area, and a connection hole is provided on the connection area (12).

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