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Injection molding method of laminated busbar

A laminated busbar and injection molding technology, applied in the direction of coating, etc., can solve the problems affecting the consistency of laminated busbar products, the difficulty of ensuring the uniformity of glue coating, and long processing time, so as to achieve excellent fluidity and insulation The effect of good performance and good fluidity

Inactive Publication Date: 2016-08-24
宁波乐士电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: it is necessary to apply glue on the PET insulating film in advance, the cost is high, and the processing time is long, time-consuming and laborious, and it is difficult to ensure the uniformity of the thickness of the glue, which affects the consistency of laminated busbar products

Method used

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  • Injection molding method of laminated busbar
  • Injection molding method of laminated busbar
  • Injection molding method of laminated busbar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The components and weight percentages of the injection-coated material are: polyvinylidene fluoride; 14.2%; polyamide 66; 25.8%; EPDM rubber 12%; glass fiber 3%, and the balance is tetraethyl silicate.

[0042] After mixing the raw materials according to the above formula ratio, mix polyvinylidene fluoride, polyamide 66, EPDM rubber, glass fiber and tetraethyl orthosilicate evenly, and then heat to 260°C for 5 hours under the protection of inert gas to react.

Embodiment 2

[0044] The components and weight percentages of the injection-coated material are: polyvinylidene fluoride; 17%; polyamide 66; 30%; EPDM rubber 14%; glass fiber 3%, and the balance is tetraethyl silicate.

[0045]After mixing the raw materials according to the above formula ratio, mix polyvinylidene fluoride, polyamide 66, EPDM rubber, glass fiber and tetraethyl orthosilicate evenly, and then heat to 260°C for 6 hours under the protection of inert gas.

Embodiment 3

[0047] The components and weight percentages of the injection-coated material are: polyvinylidene fluoride; 19.5%; polyamide 66; 30.3%; EPDM rubber 15%; glass fiber 5%, and the balance is tetraethyl silicate.

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Abstract

The invention discloses an injection molding method of a laminated busbar. The injection molding method comprises the steps as follows: processing an anode copper bar and a cathode copper bar; performing surface treatment; performing drying and preheating; positioning the anode copper bar; positioning the cathode copper bar; performing procedures of mold assembly, filling, pressure maintaining, cooling and demolding by an injection molding machine; and performing tinning or nickeling surface treatment. The injection molding method of the laminated busbar is low in manufacturing cost, short in processing period and good in product consistency.

Description

technical field [0001] The invention relates to an injection molding method of a laminated busbar. Background technique [0002] The laminated busbar mainly refers to the electrical connector of the main circuit in the converter equipment, and its function is to realize the connection between high-power components such as IGBT, rectifier diode and electrolytic capacitor in the main circuit. The processing technology of the laminated busbar in the prior art is to apply glue on three PET insulation films respectively, one of which is double-sided glued, and the other two are single-sided glued (such as figure 1 shown), and then the PET insulation film with thermosetting adhesive and the positive and negative copper bars are assembled by heating and pressing and sealed. Its disadvantages are: it is necessary to apply glue on the PET insulating film in advance, the cost is high, and the processing time is long, time-consuming and laborious, and it is difficult to ensure the uni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/14B29C45/17B29C45/26B29B11/00
CPCB29C45/0053B29C45/14065B29C45/1418B29C2045/1486B29C2045/14868
Inventor 刘泽标
Owner 宁波乐士电子有限公司
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