JP2001036179A - Package for optical module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the cap section of a package for optical module from coming off the base section of the package, even if the sections are deformed after the package is assembled, by providing groove sections at both ends of the base section and insertions which can be inserted into the groove sections on the cover section. SOLUTION: A package for optical module is constituted of a base section 1 and a cover section 2. On the section 1, groove sections 3, having U-shaped cross sections, are provided for attaching the cover section 2 at both ends of the section 1 in the longitudinal direction. Insertions 4 provided on the cover section 2 are inserted into the groove sections 3. The interval between the groove sections 3 is made so as to be slightly larger than the thickness of the connecting sections 4. The connecting sections 4 of the cover section 2 are inserted into the groove section 3 of the base section 1 in sliding states, and adhesive is applied to the sticking spots. Accordingly, the cover section 2 will not drop out of the base section 1 even if the sections 1 and 2 are subjected to deformation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a package, and more particularly to an optical module package for accommodating a waveguide element and the like.

[0002]

2. Description of the Related Art FIG. 4 shows a perspective view (a) before assembly and a right front view (b) of a conventional optical module package before assembly. 11 is a base part, 12 is a lid part, and 13 is a bonding part. A fixing method of the base portion 11 on which the waveguide element and the like are mounted and the lid portion 12 is as follows. An adhesive is applied to an adhesion portion 13 provided on the base portion 11, and the lid portion 12 is placed from above the base portion 11. It was mounted and fixed.

FIG. 5 relates to a conventional optical module package, and is a perspective view (a) after assembly and a right front view (b) thereof. The base portion 11 and the lid portion 12 are combined at a predetermined portion. The type of adhesive to be used and the materials of the base and the lid are determined in consideration of the temperature characteristics and the like of the mounted waveguide element.

[0004]

The conventional optical module package has the following problems.

FIGS. 6 (a) and 6 (b) explain the problem. FIG. 6 (a) is a side view of a normal optical module package, and FIG. Lid 1
When a heat history or the like is applied to the optical module package after fixing the base 2, the base 11
In addition, a shape change such as warpage occurs in the lid portion 12. Further, when the degree of the shape change is large, the adhesive portion between the base portion 11 and the lid portion 12 is peeled off, and the lid portion 12 falls off from the base portion 11. FIG. 6B shows a state in which the base portion 11 has undergone a shape change such as warpage due to the heat history.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned disadvantages of the prior art and to prevent the lid from falling off the base even if the base and the lid change shape after assembling the optical module package. An optical module package is provided.

[0007]

According to the present invention, there is provided an optical module package comprising a base portion and a lid portion, wherein a groove is provided at an end of the base portion and the lid portion is provided. Provided with a fitting connection portion that can fit into the groove.

The groove has a U-shaped cross section.

[0009]

FIG. 1 shows an embodiment of an optical module package according to the present invention. FIG. 1 (a) is a perspective view before assembly, and FIG. 1 (b) is a right front view thereof. 1 is a base, 2 is a lid, 3 is a groove, and 4 is a fitting connection.

The optical module package is composed of a base 1 and a lid 2 as in the prior art. In order to mount the lid 2 on the base 1, grooves 3 having a U-shaped cross section are provided at both ends in the longitudinal direction of the base 1. The fitting connection portion 4 provided on the lid portion 2 is fitted (inserted) into the groove portion 3. The gap of the groove 3 is configured to be slightly wider than the thickness of the fitting connection 4 of the lid 2. Therefore, the lid 2 does not rattle.

FIGS. 2A and 2B show how the optical module package of FIG. 1 is assembled. FIG. 2A is a perspective view and FIG. 2B is a right front view after the assembly. FIG.
As shown in (a), the fitting connection portion 4 of the lid portion 2 is fitted (inserted) while sliding into the groove portion 3 of the base portion 1.
Is done.

FIG. 3 is a perspective view (a) after the optical module package of FIG. 1 is completed and a right front view (b) thereof.
After the fitting connection portion 4 is fitted (inserted) into the groove portion 3, an adhesive is applied to a location indicated by the bonding location 5. Therefore, even if the base portion and the lid portion are deformed, the lid portion does not fall off from the base portion.

In this embodiment, only the case where the cross-sectional shape of the groove portion is U-shaped is shown, but the fitting connection portion provided on the lid portion can be fitted (inserted) without having the U-shaped shape. If it is such a configuration, it may be a triangle or a trapezoid.

[0014]

The optical module package of the present invention is
Grooves are provided at both ends in the longitudinal direction of the base portion, and the lid portion is provided with a fitting connection portion that can be fitted into the groove portion. The lid does not fall off.

[Brief description of the drawings]

FIG. 1 shows an embodiment of an optical module package according to the present invention, in which (a) is a perspective view before assembly,
(B) is a right front view thereof.

FIGS. 2A and 2B show how the optical module package of FIG. 1 is assembled, wherein FIG.
(B) is a right front view after assembling.

3A is a perspective view after completion of the optical module of FIG. 1 and FIG. 3B is a right front view thereof.

FIG. 4 is a perspective view (a) before assembly and a right front view (b) of a conventional optical module package, before assembling.

5 is a perspective view (a) after assembly and a right front view (b) of the optical module package of FIG. 4; FIG.

6A and 6B are diagrams for explaining a problem of the optical module package of FIG. 4, wherein FIG.
(B) is a side view when a problem occurs.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base part 2 Lid part 3 Groove part 4 Fitting connection part 5 Adhesion point 11 Base part 12 Lid part 13 Adhesion point

Claims (2)

[Claims] 1. An optical module package comprising a base portion and a lid portion, wherein a groove portion is provided at an end of the base portion, and a fitting connection portion capable of being fitted into the groove portion at the lid portion. An optical module package characterized by comprising: 2. The optical module package according to claim 1, wherein the groove has a U-shaped cross section.