JPH0624434A - Packaging material for packing electronic circuit unit - Google Patents

Abstract

PURPOSE:To prevent breakage of electronic circuit parts arising from static electricity generated by handlings in process of distribution by a method wherein an electronic circuit unit is packaged in a box shape with a single sheet packaging material made of a cardboard to which conduction treatment is applied. CONSTITUTION:In packaging an electronic circuit unit made up by mounting electronic circuit parts such as LSI and the like on the surface of a rectangular print circuit board and by attaching a connector to the rear edge and a card level and a surface board to the front edge of the board, a packaging material made of a single sheet of cardboard with a conductive layer D applied to one side thereof by carbon coating or aluminum foil is used. The packaging material is equipped with an upper and a lower pieces 6 and 7 in the shape and the size corresponding to a plane shape of the electronic circuit unit and side pieces 8, 9...14 forming the surroundings, and is formed by cutting the sheet in an unfolded box shape. Then, the pieces are folded along creases A with each of flaps 15 inserted into each of corresponding notches 16. The inserted flaps are fixed after they are bent, and thereby packaging of the electronic circuit unit is completed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging material for electronic circuit units.

[0002]

2. Description of the Related Art Electronic circuit units are assembled by mounting electronic circuit components on a printed circuit board at a factory.
It will be packed and sent to the customer. LSIs that operate at low voltage are frequently used in recent electronic circuit components, and there are many accidents in which elements are destroyed due to the generation of static electricity during handling during distribution.

As a countermeasure against this, the completed electronic circuit unit is enclosed in an antistatic bag and further wrapped with an air cushion sheet to protect it from mechanical shock.

[0004]

However, such a bag putting operation and a packaging operation using an air cushion sheet require a great number of man-hours and some measures are required. SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems in the prior art and provide a simple packaging material for packaging an electronic circuit unit.

[0005]

This object is a packing material for packing an electronic circuit unit in which electronic circuit parts are mounted on the surface of a printed circuit board, one surface of which has a predetermined conductivity treatment. A cardboard sheet cut into a shape was provided with a fold so that it could be assembled as a box, and a flap was formed on a part of the peripheral edge, and a notch was provided at the fold facing the flap during assembly. This is achieved by the packaging material of the electronic circuit unit, which is characterized in that

A window for exposing the identification bar code displayed on the front surface of the card lever is provided in the area of the sheet corresponding to the card lever mounted on the front edge of the electronic circuit unit. Is desirable.

[0007]

To pack the electronic circuit unit, the electronic circuit unit is placed in a predetermined posture on the sheet that has been cut to fit the unit in advance. Then fold it back along the crease so that the surface that has been subjected to conductive treatment is on the inside, insert the flap into the notch facing it,
Position and fix and assemble into a box.

As a result, the electronic circuit unit is housed in a box whose inner surface has been subjected to a conductive treatment, and even if static electricity is generated during distribution, the unit is treated because of the conductive treatment layer in contact with the electronic circuit unit. Since each of the parts is maintained at the same electric potential, it is possible to prevent an electric current from flowing and causing a trouble. Furthermore,
In the packaged state, the front of the card lever, on which the barcode for identification is displayed, can be seen from the outside through the window, which is convenient for handling.

Based on the preferred embodiment shown in the drawings,
The present invention will be described in more detail.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, an electronic circuit unit to which the present invention is applied has an electronic circuit component 2 such as an LSI mounted on the surface of a rectangular printed circuit board 1 and has a connector 3 at the rear edge and a front edge. The card lever 4 and the front plate 5 are attached to the. The electronic circuit unit is packaged with a packaging material as shown in FIG. 2 for electrostatic and / or mechanical protection when it is delivered from the factory to the customer through the distribution stage.

This packing material is a cardboard sheet having a conductive layer D on one surface thereof, such as carbon coating or aluminum foil. The sheet is a box-shaped continuous unfolded figure having upper and lower surface pieces 6 and 7 having a shape and size corresponding to the planar shape of the electronic circuit unit and side pieces 8, 9, ..., 14 forming the periphery thereof. Is cut in advance.

A fold line A is formed at the boundary of each piece for facilitating the assembling operation, and a flap 15 is formed at an appropriate position on the peripheral edge of each piece. The fold line A facing the flap 15 when further assembled
A notch 16 is provided in the area. In particular, a window 17 is formed in a region corresponding to the front surface of the card lever 4 on the side piece 13 that covers the front surface of the electronic circuit unit after the packaging is completed.

In order to pack the unit, as shown in FIG. 2, the packing material is placed with the conductive layer D on the upper side,
The electronic circuit unit is placed thereon in a predetermined posture. Then, each piece is folded back along the fold line A, each flap 15 is inserted into the facing notch 16 and bent, and both are positioned and fixed. As a result, as shown in FIG. 3, the electronic circuit unit is completely housed inside the box-shaped packing material with the conductive layer inside.

The bar code 18 displayed on the front surface of the card lever 4 for indicating the type of electronic circuit unit is
Since it is exposed from the window 17 of the assembled box, it can be seen from the outside even in the packed state.

[0015]

As described above, according to the present invention, the box-shaped packaging is performed on the electronic circuit unit by using the one-piece packaging material made of the cardboard subjected to the conductive treatment. Will be easier. Even if static electricity is generated by handling at the distribution stage, the electric potential inside the package is kept uniform by the conductive layer, so that electric current does not flow and electronic circuit parts are not destroyed.

Since the bar code displayed on the card lever of the internal unit can be visually recognized through the window provided in the packing material, the handling at the distribution stage becomes easy.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of an electronic circuit unit that is the subject of the present invention.

FIG. 2 is a development view showing the shape of the packaging material of the present invention.

FIG. 3 is a perspective view showing an electronic circuit unit and packing materials during packing.

FIG. 4 is a perspective view showing the external appearance of an electronic circuit unit that has been completely packaged.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Printed circuit board 2 ... Electronic circuit component 3 ... Connector 4 ... Card lever 5 ... Front plate 6, 7 ... Upper and lower surface pieces 8-14 ... Side piece 15 ... Flap 16 ... Notch 17 ... Window 18 ... Bar code A ... Crease D ... Conductive layer

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ichiaki Kashida 1015 Kamiodanaka, Nakahara-ku, Kawasaki-shi, Kanagawa Fujitsu Limited

Claims (2)

[Claims] 1. A packaging material for packaging an electronic circuit unit in which an electronic circuit component (2) is mounted on the surface of a printed circuit board (1), wherein one surface of the packaging material has a predetermined conductivity treatment (D). A cardboard sheet cut in the shape of 1 is provided with a fold (A) so that it can be assembled as a box, and
A flap (15) is formed on a part of the peripheral edge, and a notch (1) is formed at a fold line facing the flap during assembly.
6) A packaging material for an electronic circuit unit, which is provided with 2. The identification bar code (1) displayed on the front surface of the card lever (4) in the area of the sheet corresponding to the card lever (4) attached to the front edge of the electronic circuit unit.
Packaging material according to claim 1, provided with a window (17) for exposing the (8).