JP2003331630A - Pseudo sunlight irradiation apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pseudo sunlight irradiation apparatus which overcomes the problems with replacing of lamps and disadvantage of high apparatus cost due to using a great number of large optical fins in conventional pseudo sunlight irradiation apparatuses. <P>SOLUTION: A lamp house houses an elongated lamp 2 equipped with electrodes 2a, 2b on the ends thereof, and has openings along the lengthwise direction of the lamp 2 in the upper and lower sides of the lamp house. Contactors 24, 25 divided into upper and lower parts are disposed at both ends of the lamp house, and holds the electrodes 2a, 2b by clamping. A reflecting plate 27 with the reflecting surface on the lower side or an optical filter 26' is installed in the upper opening of the lamp house, and an optical filter 26 is installed in the lower opening of the lamp house to fabricate a light source 41 or 42. The light source 41 or 42 is disposed in a light blocking enclosure 1 having an opening in the upper side thereof on which an object 7 to be irradiated is mounted. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pseudo-sunlight irradiation device used for measuring characteristics of solar cells.

[0002]

2. Description of the Related Art Conventionally used pseudo-sunlight devices include those shown in FIGS. 6 and 7. In the device illustrated in FIG. 6, a light source 4 is formed by using a xenon lamp 2 below a large light-shielding housing 1 whose upper surface is substantially entirely opened and arranging a reflector 3 above the lamp. The optical filter 5 which is disposed above the light source 4 and covers the entire middle stage inside the housing 1 is arranged via a translucent support plate 6, and an irradiation target 7, for example, an upper surface opening of the housing 1, is provided. A transparent support member 8 such as a transparent plate on which a solar cell or the like is placed is arranged.

In the conventional device shown in FIG. 6, the supporting plate 6 of the filter 5 and the supporting plate 8 on which the irradiation target 7 is placed are required to have good light transmittance, strength and light weight. Although an acrylic plate is used, if two acrylic plates are interposed between the irradiation target 7 and the light source 4 as a supporting member, the light amount loss due to the acrylic plate cannot be ignored.

In view of this point, in the above-mentioned conventional device, the xenon lamp 2 is used because of its high emission spectrum and high light brightness.
However, the irradiation target 7 becomes large / large, that is,
When the irradiation area is, for example, about 1 m × 1 m or more, the long xenon lamp 2 having a diameter of 10 mm or less and a length of 1 m or more is used as the lamp 2. However, since this lamp 2 is thin and long and has electrodes at both ends, it is easy to cause a breakage accident if care is not taken in handling. Therefore, for the purpose of stably disposing the lamp 2 inside the pseudo solar device of FIG. 6 as a light source, the light source 4 is provided with a special lamp supporting structure as illustrated in FIG. Yes, but there are problems.

That is, the xenon lamp 2 is
Although it depends on the usage conditions, the performance deteriorates in about half a year to one year and the life becomes so long that it needs to be replaced periodically. However, with the support structure illustrated in FIG. 7, this replacement work is difficult to perform, and at the time of replacement One of the problems is that the new lamp 2 sometimes breaks.

The reason why the replacement work is difficult to perform is that the xenon lamp 2 itself becomes high in temperature due to light emission and the electrodes 2a and 2b at both ends to which electricity is applied also become high in temperature, so that the cylindrical glass sleeve 9 has a high temperature. It is a supporting form in which the electrodes 2a and 2b at both ends of the lamp 2 are inserted and connected to the electrode contactors 12 and 13 which are housed in the sleeves 9 and arranged at the insulating blocks 10 and 11 provided at both ends of the sleeve 9, respectively. Inside the 9, through the air holes 10a, 11a provided in the insulating blocks 10, 11,
Here, since the cooling air is supplied from the block 11 to the block 10 side (or the opposite direction), a complicated xenon lamp 2 support structure is provided.

In the complicated supporting structure of the lamp 2 as described above, the lamp 2 is exchanged by removing or assembling the contactors 12, 13, the insulating blocks 10, 11 and the sleeve 9 from each other. However, there is a problem in that even if it requires a great deal of attention, it still requires a working time of more than one hour, and requires considerable skill.

Moreover, the replacement work of the lamp 2 is shown in FIG.
In the above device, since there is an optical filter 5 and a supporting plate 6 that divide the inside of the housing 1 into upper and lower parts, an attendant goes under the optical filter 5 of the housing 1 and removes the entire light source 4 to remove the light from the housing 1. Since the lamp 2 was exchanged outside by removing the sleeve 9 and the contacts 12 and 13 from the insulating blocks 10 and 11, the work efficiency was not good, and the insulating blocks 10 and 11 and the lamp 2 were not replaced. Mounted contacts 12, 13
When the sleep 9 is assembled, or when the assembled light source 4 is attached, extra force is applied, which is a major factor in causing a breakage accident of the lamp 2. Moreover, since the optical filter 5 of the conventional device, which has been the cause of inevitably adopting such a working form, is expensive and is laid over the entire inner surface of the housing 1, the usage amount of this optical filter It is considered that if the number of lamps is reduced and the optical filter does not have to be laid inside the housing 1, the workability of replacing the lamp can be improved and the cost of the apparatus can be reduced.

[0009]

SUMMARY OF THE INVENTION The present invention addresses the above-mentioned problems in lamp replacement work in the conventional pseudo-sunlight irradiation device and the difficulty in device cost due to the use of a large number of large optical filters. In view of this, it is an object of the present invention to provide a pseudo-sunlight irradiation device in which a structure that causes such a problem is wiped out.

[0010]

The structure of the pseudo-sunlight irradiation device of the present invention made for the purpose of solving the above-mentioned problems is capable of accommodating an elongated lamp having electrodes at both ends and having an upper surface and a lower surface. A lamp house opened along the length direction of the lamp is provided with upper and lower divided type contactors at both ends of the lamp house to hold the electrodes of the lamp from above and below by the contactor. A reflector or an optical filter having a lower surface as a reflecting surface is provided in the upper opening of the lamp house, while an optical filter is provided in the lower opening of the lamp house to form a light source,
This light source is arranged inside a light-shielding housing formed so that an upper surface is opened and an irradiation target is placed in this opening.

The device of the present invention uses the light source in which the reflecting plate is provided in the upper opening of the lamp house in the above structure, and the reflecting plate having the upper surface as the reflecting surface is arranged below the light source. Incidentally, in an apparatus using a light source provided with an optical filter both on the upper and lower openings of the lamp house, the reflector below the light source is not essential.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the pseudo-sunlight irradiation device of the present invention will be described with reference to the drawings. FIG. 1 is a vertical cross-sectional view of an example of the pseudo sunlight irradiation device of the present invention, and FIG.
2 is an enlarged sectional view of the light source used in the apparatus of FIG. 2, FIG. 3 is a side sectional view of the light source of FIG. 2, FIG. 4 is a vertical sectional view of another example of the irradiation apparatus of the present invention, and FIG. 5 is of the light source used in the apparatus of FIG. It is an expanded sectional view. 1 to 5, the same members and parts as those of the conventional device shown in FIGS. 6 and 7 are designated by the same reference numerals.

The pseudo-sunlight irradiation device of the present invention illustrated in FIG. 1 is different from the conventional device shown in FIG. 6 in that the optical filter 5 that divides the inside of the housing 1 into two parts and its supporting plate 6 are not provided. In addition, the light source 4 of the apparatus of FIG.
The light source 41 of the present invention, which will be described in detail with reference to FIG. 3, is used.

The light source 41 in the apparatus shown in FIG. 1 has the structure shown in FIGS. 2 and 3 disposed inside the housing 1 at substantially the same height as the optical filter 5 in the conventional apparatus shown in FIG. Therefore, it will be described below.

In FIGS. 2 and 3, reference numeral 21 designates a substantially trough-shaped base housing of a lamp house having upper and lower surfaces opened along the length direction thereof, and here, in a horizontal posture, a central portion is along the length direction. Base member 21a having an opening 21b formed therein and standing wall-shaped wall bodies 21c provided on both sides of the member 21a in the longitudinal direction thereof.
And the left and right side walls 21d and 21e formed at both ends in the length direction of the base member 21a.

Insulating blocks 22 for arranging vertically divided type contactors 24 and 25, which will be described later, are installed inside both ends in the length direction of the base casing 21. Both insulating blocks 22 have basically the same symmetrical structure,
On the substantially concave lower block body 22a and the lower block body 22a,
A bar-shaped upper block body 22b that is detachably mounted,
It is formed of an attachment mechanism 23 for detachably connecting the lower two block bodies 22a, 22b.

The mounting mechanism 23 for connecting the upper and lower block bodies 22a and 22b is formed as follows in the illustrated example. 2 is provided on the upper surface of the lower block body 22a with the concave portion 22c interposed therebetween.
While vertically installing the bolts 23a, the upper block body 22b,
Two bolt holes 23b through which the two bolts 23a are respectively inserted and a receiving hole 23c surrounding each bolt hole 23b are formed. The upper block body 22b is formed so as to be coupled to the lower block body 22a by screwing and tightening the respective bolts 23a.

Reference numeral 24 is a lower contactor having a substantially convex shape fitted and mounted in the recess 22c of the lower block body 22a. Reference numeral 25 is an electrode 2a, 2b of the lamp 2 arranged on the upper surface of the lower contactor 24.
Upper contactors 24 and 25 are upper contactors sandwiched between the upper surface of the lower contactor 24 and the upper surface of the lower contactor 24.
The surfaces sandwiching 2b are formed in a concave shape, and on top of the above connection,
The lower blocks 22a and 22b are formed so as to electrically and mechanically hold the electrodes 2a and 2b of the lamp 2.

The base casing 21 provided with the insulating block 22 supporting the contactors 24 and 25 of the upper and lower division type has an opening 21b of the base member 21a and an upper surface opening (walls 21c and 21c and left and right side walls 21d, An optical filter 26 and an upper reflection plate 27 are provided on the upper surface of 21e). The optical filter 26 is provided in the opening 21a of the base member 21a having a shallow valley (or V-shaped) cross section through the coupling member 26a in the middle so that the light is emitted outward from the lower surface of the lamp house. It is arranged. Further, the reflection plate 27 is a base housing using a plate-shaped reflector whose inner reflection surface is formed in a concave arc shape in section.
It is arranged so as to close the upper openings of 21. The reflection plate 27 is detachably attached to the upper surface of the wall body 21c by a holding member 28b for bringing the edge portion into close contact with and separation from the wall bodies 21c, 21c of the base housing 21 by operating the operation knob 28a. It is attached by holding it. Further, the inside of the lamp house can be cooled by circulating air through the openings of the left and right side walls 21d and 21e. As described above, an example of the light source 41 in the device of the present invention is configured.

This light source 41 is arranged at a height almost equal to that of the optical filter 5 provided in the conventional device of FIG. 1 inside the housing 1 of the pseudo-sunlight irradiation device by a support member such as a support leg L. Set up. The light of the xenon lamp 2 of the light source 41 arranged in this way is the direct light thereof, the reflected light of the upper reflection plate 27 of the lamp house, and other reflected light from the optical filter 26 provided on the lower surface of the lamp house to the lower side of the housing 1. It will be irradiated toward. Therefore, in the irradiation device of FIG. 1, a floor-standing type reflection plate 29 is placed on both sides obliquely below the light source 41, and the reflected light from the reflection plate 29 evenly simulates the irradiation range of the irradiation target 7. It was set to shine sunlight.

In the pseudo-sunlight irradiation device of the present invention using the light source 41 as described above, the base housing 21 of the lamp house is provided with the optical filter 26 and the removable reflection plate 27, and the contactor 24 for mounting the lamp 2 is provided. , 25 are divided into upper and lower types, and the insulating block 22 that holds the contactors 24 and 25 is also divided into upper and lower types.
The reflector 27 can be removed from the upper side of the lamp house, and the block bodies 22 above and below the insulating block 22 can be removed.
Since the a and 22b and the contactors 24 and 25 held by the a and 22b are also types that can be separated vertically, there is an advantage that the lamp 2 can be easily and quickly performed without fear of breakage. Incidentally, the lamp can be replaced in less than 1/4 of the time required by the conventional device shown in FIGS.

Further, since the optical filter 26 is provided directly on the base housing 21 of the lamp house, it is not necessary to use many optical filters having a large area like the optical filter 5 of the conventional apparatus of FIG. It is also advantageous in terms of aspects.

The pseudo-sunlight irradiation device of the present invention which can obtain the above advantages is formed as another example of the pseudo-sunlight irradiation device of the present invention of FIG. 4 by using the light source 42 whose sectional structure is illustrated in FIG. Since this is possible, this point will be described below. In FIGS. 4 and 5, the same symbols as those in FIGS. 1 to 3 indicate the same members and the same parts.

The light source 42 shown in cross section in FIG. 5 is the upper reflector 27 in the light source 41 described above with reference to FIGS.
Is the only basic difference. That is, in the light source 42, since the upper surface opening of the base housing 21 in the lamp house is openably and closably covered by the two optical filters 26 'formed in a low mountain shape via the coupling material 26a', the filters 26 ', 26 are provided. An edge member 30 is attached to each outer side of ′, and one edge member 30 is supported on the upper part of the wall body 21c of the corresponding base housing of the lamp house via the hinge 31, and the other edge member 30 is By providing a holding member 28b 'having a knob 28a' with a screw, the optical filter 26 'is installed in the base housing of the lamp house.
It is attached to the opening on the top of 21 so that it can be freely opened and closed.

When the light source 42 is configured as described above, as shown in FIG. 4, the direct light of the lamp 2 that has passed through the upper optical filter 26 'of the lamp house is directly irradiated to the irradiation target 7. Therefore, the reflection plate 29 provided on the floor of the housing 1 in the example of FIG. 1 is unnecessary. The remaining points, in particular, the fact that the lamp 2 can be replaced easily and quickly in a situation where there is no risk of breakage of the lamp 2.

[0026]

The present invention is as described above, and the following various effects can be obtained. In the conventional pseudo-sunlight irradiation device, an optical filter having a size that bisects the inside of the housing, which is the main body, into the upper part and the lower part is indispensable. By substituting the optical filter provided in (3), the number of optical filters used is small and only a small number of optical filters are required, which contributes to reduction in the manufacturing cost of the device.

A contactor for holding a thin elongated lamp and an insulating block to which the contactor is attached and supported,
By adopting a split type that can be divided into two parts, the lamp can be replaced without fear of breakage, and the top of the lamp house can be opened and closed with a filter or reflector plate. Since the access for replacement can be performed from the upper surface of the lamp house, the contactor and the structure of the insulating block are combined, so that the lamp can be replaced easily and quickly without fear of breaking the lamp. This point is further facilitated by the fact that the housing of the device is not provided with an optical filter that divides the interior of the device into two parts.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of an example of a pseudo sunlight irradiation device of the present invention.

2 is an enlarged cross-sectional view of a light source used in the device of FIG.

FIG. 3 is a side sectional view of the light source of FIG.

FIG. 4 is a vertical cross-sectional view of another example of the irradiation device of the present invention.

5 is an enlarged cross-sectional view of a light source used in the device of FIG.

FIG. 6 is a vertical cross-sectional view of an example of a conventional pseudo sunlight irradiation device.

7 is a cross-sectional view of a light source used in the device of FIG.

[Explanation of symbols]

1 Light-shielding housing 2 xenon lamp 2a and 2b electrodes 4,41,42 light source 21 Lamp house base housing 21a Base member 21b Upper opening 21c Standing wall 22 Insulation block 22a, 22b Upper and lower block bodies 23 Mounting mechanism 23a bolt 23b bolt hole 23c Receiving hole 23d work clamp 23e nut 24, 25 split type contactor 26,26 'Optical filter 27 Upper reflector 28a Operation knob 28b Holding member 29 Floor reflector

Claims (4)

[Claims] 1. A lamp house, which is capable of accommodating an elongated lamp having electrodes at both ends and has an upper surface and a lower surface opened along the length direction of the lamp, is provided on both ends of the lamp house.
While arranging a lower split type contactor to hold the electrodes of the lamp by sandwiching them from above and below by the contactor, and providing a reflection plate or an optical filter having a lower surface as a reflection surface in the upper surface opening of the lamp house, An optical filter was provided in the lower opening of the lamp house to form a light source, and the light source was placed inside a light-shielding housing formed to open the upper surface and place an irradiation target in this opening. A characteristic pseudo-sunlight irradiation device. 2. The pseudo solar irradiation device according to claim 1, wherein the contactor is held by being sandwiched between upper and lower divided type insulating blocks. 3. The pseudo sunlight irradiating device according to claim 1, wherein a reflector having an upper surface as a reflecting surface is arranged below the light source in the housing. 4. The reflector or the optical filter provided in the upper opening of the lamp house can be opened and closed with respect to the upper opening, or
The pseudo sunlight irradiation device according to any one of claims 1 to 3, which is detachably provided.