CN217373178U

CN217373178U - Power module shell injection mold

Info

Publication number: CN217373178U
Application number: CN202123102146.1U
Authority: CN
Inventors: 曹来来
Original assignee: Kunshan Re Ce Precision Hardware Co ltd
Current assignee: Kunshan Re Ce Precision Hardware Co ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-09-06
Anticipated expiration: 2031-12-07

Abstract

The utility model provides a power module shell injection mold, including front formwork, back template, be equipped with mould and lower mould between front formwork and the back template, go up and be equipped with the die cavity between mould and the lower mould, it compresses tightly the subassembly to be equipped with the terminal around the die cavity of mould, the terminal compress tightly the subassembly press in on the terminal of the die cavity of lower mould, this mould is through having set up thimble or mold insert that correspond with the terminal on last mould, and thimble or mold insert can compress tightly the tip of terminal to the at least 1/3 departments of gomphosis in the shell position during the compound die, when moulding plastics, the liquid shaping of moulding plastics to outside thimble or mold insert, the stability of terminal when moulding plastics has been guaranteed greatly to the form of thimble and mold insert to can not take place the skew, improve the yield greatly.

Description

Power module shell injection mold

Technical Field

The utility model relates to an automation equipment field especially relates to tailpiece of the piston rod oiling station.

Background

If the authorization notice number is: the power device shell terminal, the shell that CN 209785924U disclosed, including square casing to inside align to grid has inlayed a plurality of terminals, when production is moulded plastics, and traditional mode is that put at the central point of die cavity through the mould and set up a briquetting, moulds plastics after compressing tightly all terminals simultaneously through the briquetting, and this kind of mode has following two shortcomings:

1. when the whole block is pressed downwards, in order to avoid affecting the injection molding of the shell, only the edge of the terminal can be pressed, namely the edge a in fig. 5, when glue is fed, flowing injection molding liquid can still generate force on the terminal, the terminal can deviate, and the product is unqualified;

2. when a plurality of terminals are pressed by the whole template, the terminals cannot be completely pressed, so that smaller tolerance exists, the arrangement is curved, and after injection molding, the product is unqualified.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem, the utility model provides a power module shell injection mold, including front formwork, back template, be equipped with mould and lower mould between front formwork and the back template, it is equipped with the die cavity to go up between mould and the lower mould, it compresses tightly the subassembly to be equipped with the terminal around the die cavity of last mould, the terminal compress tightly the subassembly press in on the terminal of the die cavity of lower mould.

Preferably, the terminal compression assembly compresses at least 1/3 of the terminal.

Preferably, the terminal pressing component comprises a plurality of thimbles embedded in the upper die, and the thimbles are uniformly arranged on the edge of the die cavity and aligned to the corresponding terminals of the lower die cavity.

Preferably, the terminal pressing assembly includes a plurality of inserts embedded in the upper mold, and the inserts are uniformly arranged on the edge of the mold cavity and aligned with the corresponding terminals in the cavity of the lower mold.

Preferably, the center of the cavity is connected with an injection molding runner.

The utility model provides a power module shell injection mould has following beneficial effect: according to the die, the ejector pin or the insert corresponding to the terminal is arranged on the upper die, the ejector pin or the insert can be pressed at least 1/3 from the end part of the terminal to the position embedded in the shell during die assembly, and during injection molding, injection molding liquid is molded, and outside the ejector pin or the insert, the ejector pin and the insert are in a form which greatly ensures the stability of the terminal during injection molding, and can not deviate, so that the yield is greatly improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic partial cross-sectional view of the present invention;

FIG. 3 is a schematic view of the upper plate of the present invention;

FIG. 4 is a schematic view of the lower template of the present invention;

FIG. 5 is a schematic diagram of a power device housing;

wherein, 1, a front template; 2. a rear template; 3. an upper die; 4. a lower die; 5. a thimble; 6. a terminal; 7. and (3) injection molding of products.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1 and fig. 2, the utility model provides a power module housing injection mold, which comprises a front template 1 and a rear template 2, an upper die 3 and a lower die 4 are arranged between the front template 1 and the rear template 2, a cavity is arranged between the upper die 3 and the lower die 4, the structures of the upper die 3, the lower die 4, the demoulding thimbles 5 and the die feet are common mechanisms in the field of injection moulds, the application is not repeated, and particularly, the description is that, a terminal 6 pressing component is arranged around the cavity of the upper die 3, the terminal 6 pressing component is pressed on the terminal 6 in the cavity of the lower die 4, the terminal 6 pressing component presses at least 1/3 of the terminal 6, wherein 1/3 means that the terminal 6 is pressed at any position in the distance from the end extending out of the housing to the terminal bending position.

The first embodiment of the terminal 6 pressing component is that a plurality of thimbles 5 are embedded in the upper die 3, the thimbles 5 are uniformly arranged at the edge of the cavity of the upper die, and aligned with the corresponding terminal 6 of the cavity of the lower die 4, the terminal 6 is lifted and placed in the cavity at the lower part, when the die is closed, the pin 5 in the upper die 3 presses against the terminal 6 in the lower cavity to compress the terminal 6, and since at least 1/3 of the terminal 6 is pressed, and the terminal 6 has good stability during injection molding through the one-to-one pressing of the single thimbles 5, an injection molding runner is connected at the center of the cavity, after injection molding liquid enters, the injection liquid can not be deviated, the injection liquid is wrapped outside the thimble 5, the final product has small holes formed by the thimble 5, the shape of the thimble 5 and the shape of the hole are not limited, and may be a polygon such as a circle, a square, a triangle, and the like.

A second embodiment of the present application is: the terminal 6 compresses tightly the subassembly including inlay in go up a plurality of mold inserts in the mould 3, mold insert align in go up the die cavity edge of mould to on aiming at the terminal 6 of the correspondence of 4 die cavities of lower mould, the shape of mold insert is also undefined, can be polygons such as circular, square, when the mold insert pushes down, can push down terminal 6 one by one, during the demolding, can appear the structure of mold insert on the product.

The terminal 6 is singly pressed by the insert or the thimble 5, so that the terminal 6 is ensured not to be inclined at first during injection molding, the positions of different terminals 6 are not moved, the terminals 6 of the injection molding product 7 are arranged orderly, and uneven shapes such as S-shaped shapes are avoided.

Claims

1. The utility model provides a power module shell injection mold, includes front formwork, back template, be equipped with mould and lower mould between front formwork and the back template, its characterized in that, be equipped with the die cavity between last mould and the lower mould, it compresses tightly the subassembly to be equipped with the terminal around the die cavity of last mould, the terminal compress tightly the subassembly press in on the terminal in the die cavity of lower mould.

2. The power module housing injection mold of claim 1, wherein the terminal hold-down assembly presses against at least 1/3 of the terminals.

3. The power module housing injection mold according to claim 1 or 2, wherein the terminal pressing assembly comprises a plurality of pins embedded in the upper mold, the pins being uniformly arranged on the edge of the cavity of the upper mold and aligned with the corresponding terminals in the cavity of the lower mold.

4. The power module housing injection mold according to claim 1 or 2, wherein the terminal hold-down assembly comprises a plurality of inserts embedded in the upper mold, the inserts being uniformly arranged on the cavity edge of the upper mold and aligned on the corresponding terminals of the lower mold cavity.

5. The power module housing injection mold of claim 1, wherein an injection runner is connected to a center of the cavity.