Plug blade and manufacturing method thereof
A manufacturing method and insert technology, which is applied in the manufacture of contacts, multi-core cable end parts, contact parts, etc., can solve problems such as easy extrusion and thinning, failure to reach inserts, complicated injection molding process, etc., and achieve manufacturing The process is simple, the amount of copper is saved, and the enhancement effect is good
Active Publication Date: 2016-06-22
NINGBO SIHONG ELECTRICAL APPLIANCE IND
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Problems solved by technology
Although this double-sheet folding method can save copper, it has serious defects: after the insert is squeezed, it cannot meet the UL standard requirement of insert thickness 2.54mm±0.13, and the insert is not strong enough to bend, especially at the root of the insert. , easy to squeeze and become thinner and loose
In order to enhance the strength and thickness of the insert, the solution of injection molding between the folded sheets is more effective for increasing the strength of the cylinder like grounding pins, but for the sheet-shaped large insert, the enhancement effect is not good, and the injection molding process is too complicated. still needs to be improved
Method used
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Embodiment Construction
[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0023] Such as figure 1 As shown, a plug insert includes an insert 1 and a terminal 2. The insert 1 is a double folded piece formed by folding a thin copper sheet in half. After the insert 1 is folded in half, a filling cavity is formed, and the filling cavity An iron sheet 4 or a curved steel needle 5 is embedded as a reinforcing filler 3, and the size of the iron sheet 4 or curved steel needle 5 matches the size of the filling cavity; the terminal 2 is U-shaped and is located in the socket The tail of the piece 1 is integrally blanked with the insert 1, and the angle between the terminal 2 and the insert 1 is 90 degrees; a rectangular perforation 11 is provided above the terminal 2, and at the other end of the folded piece A corresponding through hole 12 is provided for the terminal 2 to pass through, and the other end of the folded sheet i...
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A plug insert and its manufacturing method, including an insert and a terminal, the insert is a double folded piece formed by folding a thin copper sheet in half, and is characterized in that: the insert is folded in half and formed with a filling cavity for filling A reinforcement filler of metal material is embedded in the cavity, and the reinforcement filler is an iron sheet or a curved steel needle; the invention also discloses a manufacturing method thereof. Compared with the existing single-layer inserts, not only the amount of copper is saved, but also the strength and thickness of the inserts meet the standards. Compared with the existing injection molding process of folded inserts, the invention has simple manufacturing process and low cost , The enhancement effect is good, especially suitable for large sheet-like inserts.
Description
technical field [0001] The invention relates to an electric appliance plug, in particular to a plug blade. Background technique [0002] The standard inserts of electrical plugs used by general electrical appliances are made of copper sheets, and each piece needs to use about 13 grams of copper. In order to save the amount of copper, there is currently a manufacturing process of folding copper sheets together. The process flow of this double-sheet folding is: 1) Blanking; 2) Folding; 3) Forming. Although this double-sheet folding method can save copper, it has serious defects: after the insert is squeezed, it cannot meet the UL standard requirement of insert thickness 2.54mm±0.13, and the insert is not strong enough to bend, especially at the root of the insert. , easy to extrude and become thinner and loose. In order to enhance the strength and thickness of the insert, the solution of injection molding between the folded sheets is more effective for increasing the strengt...
Claims
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IPC IPC(8): H01R13/02H01R13/03H01R11/11H01R43/16
Inventor 俞国麟
Owner NINGBO SIHONG ELECTRICAL APPLIANCE IND