JPS63275101A - Electronic part - Google Patents

Abstract

PURPOSE:To prevent a gripping portion from protruding from the top section of a case and to eliminate the deviation of holding by a tip-presser by forming one notch on the edge of the top section of the case and locating an end section of the cover seat on the notch. CONSTITUTION:At least one or more notches 11 and 16 are formed on the edge of the top section of a case 10, and an end section 15a of the cover seat 15 is locates on the notch 11. According to the constitution, in the case of detaching the cover seat 15, a gripping portion 15a by tweezers 20 is getting bigger, so that the workability of detaching is improved. Furthermore, the exposed core 15a does not protrude from the case 10, and misfit or mislocation is positively prevented by an accurate holding by a tip-presser.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to chip-type electronic components, and in particular to the structure of their cases.

Conventional technology and its problems Conventionally, as shown in Figures 5 and 6, in chip-type volumetric capacitors and trimmer capacitors, the internal parts were soldered to protect them from the intrusion of flux and cleaning fluid. A cover sheet 2 was attached to the upper surface of the case 1 with an adhesive 3. And, due to the need for adjustment after mounting on the board,
In the bin set 4, the end of the cover sheet 2 is allowed to protrude from the case 1 by α as a gripping margin. It goes without saying that the larger α is, the easier it is to grip with the bottle set 4. However, if the gripping allowance is made large, there is a risk that misalignment or mounting errors may occur during mounting on a substrate with a chip placer. Therefore, the gripping margin is limited to 0.2 to 0.3 mm, which causes the bottle set 4 to have a problem in that it is difficult to grip and the workability is poor.

Means for Solving the Problems In order to solve the problems above, the electronic component according to the present invention has at least one notch formed in the edge of the upper surface of the case, and a cover sheet is placed over the notch. It is characterized in that the end of the

Function In the above configuration, when peeling off the cover sheet for adjustment after mounting on the board, the end of the cover sheet located in the notch of the case is held in the bin set. The part has a large gripping allowance due to the presence of the notch. Moreover, the gripping allowance does not protrude from the upper surface of the case, and there is no misalignment in holding the chip blazer.

Embodiment FIG. 1 shows electronic components such as a chip type volume and a trimmer capacitor, and a cover sheet 15 is adhered to the upper surface of a case 10 with a heat-resistant adhesive 16.

The cover sheet 15 is made of a heat-resistant material such as polymide film. A notch 11 is formed at one corner of the upper edge of the case 10, as shown in FIG. 2, for example. The cover sheet 15 is the notch 1 of the case 10
The end portion 158 is located above the notch 11.

This cover sheet 15 has flux and cleaning liquid in case 1.
This is to prevent the end portion 158 from penetrating into the interior of the film, and during adjustment, the end portion 158 can be held and peeled off with the bin set 20.

On the other hand, the notch 11 is formed in the case 1 as shown in FIG.
They may be formed at two locations on the diagonal line of the top surface of the 0, or they may be formed by cutting out the entire negative side as shown in FIG. In the former case, it can be peeled off from two directions, and in the latter case, there is a large degree of freedom in the gripping position with the bottle set 20, and together with the large gripping margin, the workability is good.

Effects of the Invention As is clear from the above explanation, according to the present invention, at least one notch is formed at the edge of the upper surface of the case, and the end of the cover sheet can be positioned on the notch. When peeling off the cover sheet, the gripping area with the bin set is increased, improving the peeling work efficiency, and the gripping area does not protrude from the outer shape of the case, making it possible to hold the cover sheet accurately with the chip laser, making it easier to mount the cover sheet. Mistakes and misalignments are reliably prevented.

[Brief explanation of drawings]

FIG. 1 is a front view of an electronic component according to the present invention, FIG.
4 and 4 are perspective views showing cutout locations of the case, respectively. FIG. 5 is a front view of a conventional electronic component, and FIG. 6 is a perspective view of the conventional electronic component when the cover sheet is peeled off. DESCRIPTION OF SYMBOLS 10... Case, 11... Notch, 15... Cover sheet, 15a... End part (grip allowance). Patent applicant Takeshi Morishita, patent attorney representing Murata Manufacturing Co., Ltd. - Figure 5 Figure 1 Figure 6

Claims (1)

[Claims] (1) In an electronic component in which a cover sheet is attached to the upper surface of the case, at least one notch is formed at the edge of the upper surface of the case, and the end of the cover sheet is positioned on the notch. An electronic component characterized by: