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Planar connector

A flat connector technology, applied in the direction of the base/shell, etc., can solve the problems of insufficient fluidity, increased bending deformation of the flat connector, insufficient strength of the composition, etc.

Active Publication Date: 2009-09-09
POLYPLASTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, even with a glass fiber-reinforced liquid crystalline polymer composition having a certain degree of fluidity, it is required in recent years that the lattice part pitch spacing is 2 mm or less, and the thickness of the resin part of the lattice part at the holding end is 0.5 mm. The performance of the following very thin planar connectors is not sufficient
That is, in the planar connector having a very thin lattice portion, if the lattice portion is filled with resin, the filling pressure will increase due to insufficient fluidity, and as a result, the amount of bending deformation of the obtained planar connector will increase. question
[0005] In order to solve this problem, it is considered to use a fluid liquid crystal polymer composition with reduced glass fiber addition, but the strength of the composition is insufficient, and there is a problem of deformation caused by reflow soldering during mounting.
[0006] Therefore, the current status is that a planar connector made of an excellent liquid crystal polymer with a balanced performance has not yet been obtained.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5 and comparative example 1～9

[0092] The test pieces of the glass fiber-containing liquid crystalline polymer composition were prepared and evaluated under the above conditions, and the results shown in Table 2 were obtained.

[0093] [Preparation conditions]

[0094] (use ingredients)

[0095] ・Polymer: Liquid crystal polymer particles (Bektra E950i, produced by Polymer Plastics Co., Ltd.), a base polymer with a melting point of 335°C and a viscosity of 30 Pa·s (measured at 350°C and a shear rate of 1000 / s), particle size : about 5~3mm×about 3~2mm×about 3~1mm

[0096] ·glass fiber

[0097] (1) the fibers used in Examples 1-5, Comparative Examples 1-8;

[0098] Asahi Fiber Glass Co., Ltd. CS03JA419 (chopped strand fiber with a fiber diameter of 10 μm)

[0099] (2) The fibers used in Comparative Example 9;

[0100] Nittobo Co., Ltd. PF70 (pulverized fiber with a fiber diameter of 10 μm and a fiber length of 80 μm)

[0101] ・Lubricant: Unista-H-476 manufactured by NOF Co., Ltd.

[0102] (mixing equipm...

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Abstract

The present invention relates to a very thin planar connector having a cell pitch of 2 mm or less and a cell thickness of 0.5 mm or less, and provides excellent performances such as formability, flatness, bending deformation, and heat resistance. Flat connector. In the (C) composite resin composition in which (B) fibrous filler is mixed with (A) liquid crystalline polymer, the relationship between the mixing amount of (B) fibrous filler and the weight average length is controlled to a specific Compositions within a range are molded to obtain a planar connector with a lattice structure inside the frame.

Description

technical field [0001] The invention relates to a planar connector with a lattice structure inside an outer frame such as a CPU socket. Background technique [0002] Liquid crystal polymers have excellent dimensional accuracy, vibration damping, and fluidity even among thermoplastic resins, and are known as materials that rarely form burrs during molding. Conventionally, liquid crystalline polymers have been widely used as materials for various electronic parts by making effective use of these properties. [0003] Especially in recent years, with the high performance of electronic equipment, the era also requires high heat resistance (improvement of productivity due to mounting technology), high density (multi-core) and miniaturization of connectors. Effective use of the above Properties of Liquid Crystalline Polymers, Use of Glass Fiber Reinforced Liquid Crystalline Polymer Compositions as Connectors ((Full Survey of Engineering Plastics '92-'93), pp. 182-194, Published in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R13/46C08K7/02C08L101/12C08J5/04
CPCC08L101/12C08J2300/12C08J5/04
Inventor 深津博树渡边一史盐饱俊雄大芝浩一
Owner POLYPLASTICS CO LTD