Permanent connection device for metal plate piece and plastic casing
A technology of plastic shell and fixing device, which is applied in the installation of supporting structure, parts of cabinet/box/drawer, etc., can solve the problems of cumbersome injection molding process, cumbersome process, insufficient connection fastness, etc.
Active Publication Date: 2011-03-30
BYD CO LTD
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Problems solved by technology
However, the method of using hot-melt technology to fix sheet metal parts and plastic shells has the disadvantages of insufficient connection fastness, high defect rate, cumbersome process, and high cost; while using in-mold injection molding to fix sheet metal parts and plastic shells method, because the plastic mold is very complicated, there are disadvantages of cumbersome injection molding process, high cost, and high defective rate
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[0015] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0016] As shown in Figures 1 to 7, a fixed connection device between a sheet metal part and a plastic casing provided by the present invention is shown, which is a preferred embodiment provided by the present invention, and the sheet metal part 1 has a top wall 101 and four sidewalls 102 bent downward from the periphery of the top wall 101 . Each sidewall 102 is provided with a through hole near the two ends to serve as the female buckle 11 . The plastic housing 2 is provided with a cavity 3, the cavity 3 has four cavity walls 301, and the outer surface of each ca...
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The invention relates to a fixing connection device for a sheet metal component and a plastic shell body; wherein, the sheet metal component comprises a top wall and a side wall which is formed by bending and extending the top wall edge, the plastic shell body comprises a cavity with a cavity wall, at least two pairs of mutually matched male buckles and female buckles are arranged on the sheet metal component and the plastic shell body; the female buckles are arranged on the sheet metal component side wall or cavity wall lateral surface, and correspondingly the male buckles are arranged on the cavity wall lateral surface or the sheet metal component side wall, a side wall spring plate having an interference fit with the cavity wall lateral surface is arranged on the side wall of the sheet metal component. The application of the structure of the invention can lead the installation to be rapid and convenient through the buckling structure, reduce the complex technique in the prior art, and reduce the cost.
Description
technical field [0001] The invention relates to a fixed connection device for a sheet metal part and a plastic casing. Background technique [0002] With the development of science and technology, the thickness of some electronic products is getting thinner and thinner, especially electronic products such as mobile phones, electronic dictionaries and PDAs. In order to make the above-mentioned electronic products thinner, it is generally necessary to improve the fixed connection structure between the sheet metal parts and the plastic housing of the above-mentioned electronic products. [0003] Take the design of the battery compartment of a mobile phone as an example. At present, steel sheets and plastics are usually hot-melted or in-mold injection molding technology is used to fix the steel sheets and plastics together, which can reduce the thickness of the battery compartment. However, the method of using hot-melt technology to fix sheet metal parts and plastic shells has ...
Claims
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IPC IPC(8): H05K7/14H05K5/02
Inventor 张慧钧卫向坡
Owner BYD CO LTD