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Combined power cover plate and preparation method thereof

A technology of composite power supply and cover plate, applied in the direction of coating, can solve the problem that the strength and shielding efficiency of the power supply cover cannot be arbitrarily designed, and achieve the effect of strong impact toughness and good shielding efficiency.

Active Publication Date: 2014-05-07
SHENZHEN FRD SCI & TECH
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Problems solved by technology

[0005] In view of the above deficiencies in the prior art, the purpose of the present invention is to provide a composite power supply cover and its preparation method, aiming to solve the problem that the current power supply cover cannot be designed arbitrarily under the condition of ensuring strength and shielding effectiveness

Method used

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  • Combined power cover plate and preparation method thereof
  • Combined power cover plate and preparation method thereof

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Embodiment Construction

[0027] The present invention provides a composite power supply cover plate and its preparation method. In order to make the purpose, technical solution and effect of the present invention more clear and definite, the present invention will be further described in detail below. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0028] The invention provides a method for preparing a composite power supply cover, wherein the composite power supply cover is formed by insert injection molding of a conductive plastic part providing electromagnetic shielding performance and a common plastic part providing impact toughness.

[0029] In a preferred embodiment, the composite power supply cover adopts such as figure 1 The in-mold injection molding process shown is formed, specifically:

[0030] A. After plasticizing, ordinary plastic particles are injected into the first mold for inje...

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Abstract

The invention discloses a combined power cover plate and a preparation method thereof. The combined power cover plate is obtained by performing injection molding on a conductive plastic piece with electromagnetic shielding performance into a common plastic piece with impact toughness in an embedded manner. According to the combined power cover plate, the cover plate strength is supplied through the common plastic piece, and the conductive plastic piece can supply shielding performance to the cover plate; furthermore, the common plastic piece and the conductive plastic piece are embedded to form the combined power cover plate through intramode injection molding or double-color injection molding forming technology, so that the problem that the conventional power cover plate cannot have the impact toughness and the shielding performance can be solved; therefore, the power cover plate disclosed by the invention is extremely high in shielding performance and excellent in impact toughness.

Description

technical field [0001] The invention relates to the technical field of electrical equipment preparation, in particular to a composite power supply cover plate used for a communication cabinet and a preparation method thereof. Background technique [0002] At present, various communication cabinet products have higher and higher requirements for electromagnetic shielding, mechanical properties and product appearance. Metal die-casting is the first choice for various power supply covers. The emergence of lacquer design. [0003] The currently ubiquitous metal die-casting panels have a good shielding function, but the processing is more complicated, the product is heavy, and the appearance cannot be changed at will. In the scheme of ordinary plastic and metal shielding cover, the metal shielding cover cannot be designed according to the shape of the ordinary plastic cover plate at will. However, the metal layer of ordinary plastic surface plating or spraying conductive paint ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/14B29B11/08
CPCB29B11/08B29C45/0013B29C45/14
Inventor 张欢陈凤王美发周斌
Owner SHENZHEN FRD SCI & TECH
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