JPS6133651Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a support structure for a photoelectric conversion element.

When the photoelectric conversion element is used, for example, as a light emitter or a light receiver, it is usually housed and supported in a cylindrical container, and light is emitted or received from one end of the container,
A lead wire for electrical connection is connected from the other end. In this case, the optical axis of the photoelectric conversion element housed inside must be supported so as to coincide with the cylindrical axis of the container. When the photoelectric conversion element is cylindrical, a structure has conventionally been used in which an elastic material such as rubber is pasted on the inner peripheral surface of a cylinder having an inner diameter slightly larger than the outer diameter of the photoelectric conversion element.

However, such a conventional support structure requires time and effort to apply rubber etc. to the inner circumference of the cylinder, and
There is a drawback that the photoelectric conversion element cannot be held sufficiently due to deterioration of the rubber and the like. If the inner diameter of the cylinder is held to exactly match the outer diameter of the photoelectric conversion element, the above drawback will be resolved, but since the outer diameter of the photoelectric conversion element is not necessarily constant, the inner diameter of the cylinder must be adjusted individually. Moreover, it is inconvenient to replace the photoelectric conversion element.

The purpose of the present invention is to solve the above-mentioned conventional drawbacks,
It is an object of the present invention to provide a support structure for a photoelectric conversion element that has a simple structure and can easily and reliably accommodate and support a photoelectric conversion element.

The support structure of the present invention includes a large number of protrusions or thread-like protrusions with a thin tip formed on the inner peripheral surface of at least a part of the cylindrical container, or mountain-like protrusions parallel to the axial direction, Equipped with a protrusion of constant height,
It is characterized in that the cylindrical container is divided into two along a plane including the axis.

Next, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a side view showing an embodiment of the present invention, in which a screw-shaped protrusion 2 is formed on a part of the inner peripheral surface of a cylindrical container 1 (half of one side is shown). The height of the protrusion 2 is constant, and the inner diameter d of the tip of the protrusion is
is the outer diameter D (second
(see figure). The material used is ordinary plastic or the like which has some elasticity. When the photoelectric conversion element 4 is sandwiched and pressed using the support structure of this embodiment, the tip of the protrusion 2 is pressed by the photoelectric conversion element 4, and the photoelectric conversion element 4 is accommodated and supported within the container 1. After that, by passing a bolt or the like through the hole 3 and fixing it with a nut, the containers 1 (two containers) are formed into a cylindrical shape, and the tip of the protrusion 2 supports the photoelectric conversion element 4 elastically and coaxially. . Since the protrusion 2 is thin at the tip and larger toward the base, and is elastic, there is considerable flexibility in the relationship between the inner diameter d of the tip of the protrusion and the outer diameter D of the photoelectric conversion element 4. Even if there is some variation in the outer diameter of the element 4, it can be sufficiently supported. Depending on the material, the tips of the protrusions may be slightly destroyed or deformed, but since all the tips of the protrusions are destroyed uniformly, they can be coaxially supported by the remaining slightly larger portions. Unlike rubber, plastic does not harden and lose its elasticity over time, so it can be stably accommodated and supported over a long period of time. Additionally, the support structure described above is simple and can be easily formed, for example by injection molding of plastic, requiring fewer manufacturing steps.

Figures 3a and 3b show an embodiment in which the protrusions are formed by a number of mountain-shaped protrusions 5 parallel to the axial direction. In this case as well, the same effects as in the embodiment shown in FIG. 1 can be achieved.

As shown in FIGS. 4a and 4b, a similar effect can be obtained when a large number of protrusions 6 with sharp tips are provided. In short, any shape of the protrusions may be used as long as they are uniformly disposed on the inner circumferential surface in the inner circumferential direction and have tapered tips.

As described above, in the present invention, the cylindrical container is divided into two parts, and a part of the inner peripheral surface is provided with a large number of projections with thin tips to press and support the cylindrical photoelectric conversion element. With a simple structure, a photoelectric conversion element can be stably supported for a long period of time. Furthermore, it is easy to manufacture, and the assembly and support work is also simple.

[Brief explanation of the drawing]

FIG. 1 is an exploded side view showing an embodiment of the present invention;
Figure 2 is a side view showing the photoelectric conversion element, Figure 3a,
4b is an exploded side view and a view seen from the axial direction showing another embodiment of the present invention, and FIGS. 4a and 4b are an exploded side view and a view seen from the axial direction showing still another embodiment. In the figure, 1... Cylindrical container, 2... Screw-shaped protrusion, 3... Bolt hole, 4... Photoelectric conversion element, 5... Protrusion parallel to the axial direction, 6... Protrusion with a pointed tip. .

Claims (1)

[Scope of utility model registration request] In a support structure for accommodating and supporting a substantially cylindrical photoelectric conversion element in a cylindrical container, at least a part of the cylindrical container has a large number of protrusions or screw-like protrusions formed on an inner circumferential surface with a thin tip, or A support structure for a photoelectric conversion element, comprising a plurality of mountain-shaped projections or the like parallel to the axial direction and having a constant height, and the cylindrical container is divided into two by a plane including the axis.