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Plastic and metal combined power supply module shell

A technology of power modules and plastic shells, applied in metal shells, electrical equipment shells/cabinets/drawers, metal containers, etc., can solve the problems of inability to interfere with shielding of electronic components, inability to dissipate heat, and shorten the service life of power modules, and achieve Good protection effect, good protection and service life, safety insulation metal heat dissipation and metal shielding effect

Pending Publication Date: 2022-06-07
深圳市中正磁能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]However, the protective casing of the power module in the prior art has a single function during use, and only has a protective function. This protective casing protects the power module At this time, the heat generated by the power module cannot be quickly dissipated, resulting in a reduction in the service life of the power module, and at the same time, it is impossible to shield the interference generated by other electronic components

Method used

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  • Plastic and metal combined power supply module shell
  • Plastic and metal combined power supply module shell
  • Plastic and metal combined power supply module shell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] like Figure 1 to Figure 3 As shown, a plastic and metal combined power module housing includes a housing body 1. By fitting the housing body 1 to the power module, the protection of the power module is realized and the service life of the power module is prolonged; The housing body 1 in the example includes a metal housing 2 and a plastic housing 3. By enclosing the plastic housing 3 outside the metal housing 2, the housing body 1 can have the insulation safety distance characteristics of the plastic housing 3 and the metal housing at the same time. Due to the rapid heat dissipation characteristics of the metal casing 2, the power module can have an excellent protective effect after the housing body 1 of this embodiment is installed. Extend the service life of the power module.

[0036] like figure 2 As shown, the metal shell 2 of this embodiment is a box structure without a cover with an opening at the bottom, so that after the metal shell 2 is connected with the p...

Embodiment 2

[0040] like Figure 5 to Figure 6As shown, the difference from the first embodiment is that the plastic housing 3 of the second embodiment includes a plastic main body 32 and a semi-enclosed insulating barrier wall 36 surrounding the outer side of the plastic main body 32, wherein the bottom of the semi-enclosed insulating barrier wall 36 is connected to the The bottom of the plastic main body 32 is connected to form an integrated structure, and the semi-enclosed insulating retaining wall 36 is combined with the outer side wall of the plastic main body 32 to form an installation interlayer 34 that is semi-enclosed on one side of the plastic main body 32. By inserting the metal shell 2 into the installation interlayer The assembly of the metal shell 2 and the plastic shell 3 is realized in 34; in this embodiment, a semi-enclosed insulating retaining wall 36 is arranged outside the plastic shell 3, which simplifies the production process and production cost compared with the firs...

Embodiment 3

[0042] like Figure 7 As shown in the figure, the difference from the first and second embodiments is that the plastic shell 3 and the metal shell 2 of the third embodiment are integrally formed. The body 1 reduces the subsequent assembly process of the shell body 1, and the metal shell 2 is surrounded by the plastic shell 3 as a whole, so that the shell body 1 has the characteristics of metal heat dissipation while ensuring safety and insulation; this embodiment The connecting pins 4 pass through the plastic shell 3 and extend to the bottom of the metal shell 2 , so that the connecting pins 4 can be welded or riveted to the circuit board, thereby realizing the metal shielding function of the shell body 1 .

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Abstract

The invention relates to the technical field of power module shells, in particular to a plastic and metal combined power module shell which comprises a shell body, the shell body comprises a metal shell and a plastic shell, the plastic shell surrounds the outer side of the metal shell, the metal shell is of an uncovered box structure with an opening formed in one side, and the plastic shell is of a plastic shell structure. And a connecting pin is arranged at the opening of the metal shell. According to the invention, the shell body comprising the metal shell and the plastic shell is arranged, and the plastic shell surrounds the outer side of the metal shell, so that the shell body can have the insulation safety distance characteristic of plastic and the heat dissipation characteristic of metal at the same time, has a good protection effect, and enables the power module to have good protection performance and long service life; and meanwhile, the bottom of the metal shell is provided with the connecting pins, so that the connecting pins can be connected to a circuit board when the shell body is installed, and a metal shielding effect is achieved.

Description

technical field [0001] The invention relates to the technical field of power module housings, in particular to a plastic and metal combined power module housing. Background technique [0002] The power module is a power supply mounted on a printed circuit board, which can provide power for application-specific integrated circuits, digital signal processors, microprocessors and other digital or analog loads. It is widely used in switching equipment, access equipment, mobile Communication, microwave communication, optical transmission, routers and other communication fields, automotive electronics, aerospace, etc.; when the power module is installed and used, it is usually equipped with a protective shell outside the power module for protection to ensure that the power module can be used for a long time. life. [0003] However, the protective casing of the current power module in the prior art has a single function during use and only has a protective function. When the prote...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K5/02H05K5/04H05K7/20H05K9/00
CPCH05K5/0004H05K5/0217H05K5/04H05K5/0234H05K5/0247H05K9/0049H05K5/0213H05K7/20H05K7/2039
Inventor 刘华朝
Owner 深圳市中正磁能科技有限公司
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