JP2013222945A - Light irradiation device for testing solar cell - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light irradiation device for testing solar cells that can form a test environment corresponding to any desired test condition, and thus increases acceleration speed based on an actual usage condition, and that can implement a life acceleration test to both a crystalline solar cell module and a thin-film solar cell module.SOLUTION: A light irradiation device for testing solar cells includes: a chamber 11 for holding a panel formed by solar cell modules to be tested inside; a first light irradiation unit 20 for irradiating the front surface of the panel; a second light irradiation unit 25 for irradiating the rear surface of the panel; a radiation light control mechanism of the first light irradiation unit 20; and a radiation light control mechanism of the second light irradiation unit 25. The light irradiation device for testing solar cells is configured to be able to adjust spectral radiation distribution of light radiated from the second light irradiation unit by the radiation light control mechanism of the second light irradiation unit.

Description

  The present invention relates to a solar cell test light irradiation device, and more particularly, to a solar cell test light irradiation device that irradiates a solar cell module with test light, which is used in a life acceleration test of a solar cell module.

  A light irradiation device that emits light including ultraviolet rays is a light irradiation process such as surface modification, exposure, molding, curing, adhesion, and washing of an object to be irradiated (hereinafter also referred to as “work”), or a light irradiation test. It is also used in the life acceleration test of solar cell modules.

  2. Description of the Related Art Conventionally, as a solar cell module, a crystalline solar cell module having a plurality of solar cells as shown in FIG. 2 has been used, and in recent years, it can be manufactured with resource saving and energy saving. A thin-film solar cell module having a structure advantageous for cost reduction, mass production, and large area, in which a plurality of solar cell units are provided on a common translucent substrate as shown in FIG. Is being researched and commercialized.

In the crystalline solar cell module 100 of FIG. 2, each of the plurality of solar cells 101 includes a semiconductor layer 102, and an antireflection film 103 is provided on the surface of the semiconductor layer 102 (upper surface in FIG. 2). Electrodes 104A and 104B are formed by printing on the surface of the antireflection film 103 (upper surface in FIG. 2) and the back surface (lower surface in FIG. 2) of the semiconductor layer 102, respectively. The plurality of solar cells 101 are arranged so as to cover the plurality of solar cells 101 and the interconnect material 105 in a state where they are arranged on the same plane and connected in series by the interconnect material 105 made of wires. It is sealed by a sealing portion 107 made of a light sealing material. On the surface of the sealing portion 107 (the upper surface in FIG. 2), a light-transmitting plate 108 made of highly light-transmitting glass or the like is provided for protection from the effects of external stress and water vapor. A light receiving surface is formed by the optical plate 108. A protective sheet 109 having a water vapor barrier property called a back sheet is provided on the back surface (the lower surface in FIG. 2) of the sealing portion 107 so as to face the translucent plate 108. In addition, an aluminum frame 112 for fixing the sealing portion 107 together with the light transmitting plate 108 and the protective sheet 109 is provided on the periphery of the light transmitting plate 108 and the protective sheet 109 via a seal material 113. Yes.
Here, as the translucent sealing material constituting the sealing portion 107, for example, ethylene vinyl acetate copolymer (EVA), polyvinyl butyral (PVB), or silicone resin is used, and a protective sheet is used. As 109, for example, one having a multilayer film structure in which films made of polyvinyl fluoride (PVF), polyethylene terephthalate (PET), polyethylene (PE) or the like are laminated is used.

In the thin-film solar cell module 120 of FIG. 3, each of the plurality of solar cell units 121 has a transparent electrode 124A and a semiconductor layer 122 on a common translucent substrate 123 made of glass or plastic constituting a light receiving surface. The back electrode 124B is laminated in this order. The plurality of solar cell units 121 have one end side (left end side in FIG. 3) of the semiconductor layer 122 in contact with the translucent substrate 123 and one end side of the back electrode 124B (left end side in FIG. 3). ) Is in contact with the transparent electrode 124 </ b> A of the adjacent solar cell unit 121. That is, the adjacent solar cell units 121 and 121 are connected in series by the transparent electrode 124A of one solar cell unit 121 and the back electrode 124B of the other solar cell 121, and as a result, a plurality of solar cell units. All 121 are connected in series. The plurality of solar cell units 121 connected in series are sealed by a sealing portion 127 made of a light-transmitting sealing material provided so as to cover the plurality of solar cell units 121. A protective sheet 129 having a water vapor barrier property called a back sheet is provided on the back surface (lower surface in FIG. 3) of the sealing portion 127 so as to face the translucent substrate 123. On the periphery of the sheet 129 and the translucent substrate 123, an aluminum frame 132 for fixing the sealing portion 127 together with the protective sheet 129 and the translucent substrate 123 is provided via a sealing material 133.
Here, as the translucent sealing material constituting the sealing part 127, for example, ethylene vinyl acetate copolymer (EVA), polyvinyl butyral (PVB), or silicone resin is used, and a protective sheet is used. As 129, for example, one having a multilayer film structure in which films made of polyvinyl fluoride (PVF), polyethylene terephthalate (PET), polyethylene (PE), or the like are laminated is used.

  In addition, the solar cell module is required to have a long life, and in the service life of the solar cell module, ultraviolet rays are applied to constituent members made of an organic material such as a sealing material and a protective sheet constituting the sealing portion. It is known that deterioration caused by irradiation has a great influence. Corresponding to this, a solar cell module including a constituent member having good weather resistance against ultraviolet rays has been proposed (see, for example, Patent Document 1 and Patent Document 2).

  A life test of such a solar cell module has a method using a pseudo solar light source, and generally uses a light irradiation device that emits light including ultraviolet light, that is, a UV light source that is a light irradiation device is replaced with a pseudo solar light source. A life acceleration test is performed in which the light source is irradiated with ultraviolet rays so that the irradiance on the light irradiation surface of the solar cell module is larger than that when natural sunlight is irradiated.

Conventionally, this life acceleration test has been performed individually for each of the constituent members constituting the solar cell module, but the life characteristics also change depending on the combination of solar cells or solar cell units or other constituent members. Since there is a possibility, in recent years, emphasis has been placed on performing in the form of a solar cell module that is actually used.
In addition, when further shortening the time required for the test in the life acceleration test, there is a concern that failure accidents that do not occur in a practical environment, specifically destruction may occur. There is a demand for performing an accelerated life test under test conditions more in line with practical use conditions.

As a solar cell test light irradiation device for performing a life acceleration test using the solar cell module itself as a test object, light containing ultraviolet rays from a plurality of ultraviolet lamps 142 is used as test light as shown in FIG. The thing of the structure which irradiates light toward the surface (upper surface in FIG. 14) of the panel which consists of test object, ie, the solar cell module which is the workpiece | work W, is used.
The solar cell test light irradiation apparatus in FIG. 14 includes one of a box-shaped chamber 145 that forms a processing chamber in which a solar cell module that is a workpiece W is accommodated, and a plurality of ultraviolet lamps 142 that emit test light ( 14) and a light irradiation unit 141 disposed inside a box-shaped lamp housing 143 that opens the light emission port 143A, and is provided above the chamber 145 (upper side in FIG. 14). The light irradiation unit 141 is arranged above the opening 145A for introducing the test light formed in the cover so as to close the opening 145A.
In this solar cell test light irradiation device, the test light emitted from the light irradiation unit 141 is reflected directly or by the reflection plate 147 provided on the inner surface of the peripheral wall portion 145B of the chamber 145. Irradiation is performed only on the surface of the workpiece W, that is, the surface having the light receiving surface which is the light irradiation surface of the solar cell module.

  By performing a life acceleration test on the solar cell module itself by using such a solar cell test light irradiation device, a sealing material and a protection material that constitute a sealing portion that is easily affected by deterioration due to ultraviolet rays Similarly to the practical environment, other structural members (specifically, the translucent plate 108 in the crystalline solar cell module 100, the translucent substrate 123 in the thin film solar cell module 120, and the sheet) The transmitted light of the transparent electrode 124A in the solar cell unit 121 is irradiated, or other constituent members of the transmitted light (specifically, in the crystalline solar cell module 100, the solar cell 101, the thin film system). In the solar cell module 120, only leakage light that has passed between the solar cell units 121) is irradiated. Is possible to further shorten the time required for testing by increasing the extent of breaking the ultraviolet illumination does not occur has been studied at the surface of the.

However, recently, the spread of solar cells is expanding in various fields and places. Specifically, in the past, it has been mainstream to install solar cell modules on the roofs of individual houses. Since solar cell modules have been installed on the rooftops of apartments or on idle land, and have been used in mega solar power plants, the solar cell modules themselves are used as test objects. It has been found that there is a problem that the life acceleration test cannot be performed under the test conditions in accordance with the practical use conditions by irradiating only the surface of the test light with test light.
Hereinafter, the newly found problem will be described.

  In the case where the solar cell module is installed in a place other than the roof of the individual house, in general, in order to obtain higher power generation efficiency, the solar cell module is intended to correspond to the irradiation angle of sunlight. Is installed on a gantry, and especially when used in a mega solar power plant, a gantry equipped with a solar tracking device to efficiently receive sunlight is used to obtain even higher power generation efficiency. Sometimes. The height of the gantry is such that the separation distance from the ground (installation surface of the gantry) of the installation location of the solar cell module is reduced for the purpose of reducing the influence of moisture from the ground (installation surface of the gantry) of the installation location. It is set to be about 1 m.

Thus, in the case where the solar cell module is positioned on a pedestal having a certain height, it is installed on the roof of an individual house having an inclination, unlike the case where the solar cell module is positioned close to the roof. Sunlight (reflected light) reflected / scattered by the ground of the place (installation surface of the gantry) is applied to the protective sheet provided on the back surface of the solar cell module.
Thus, although the reflected light from the ground (installation surface of the gantry) of the installation location that is to be irradiated to the protective sheet has a lower radiation intensity than the direct light from the sun, the solar cell module The reflectance of sunlight on the ground where the ground is installed (the ground where the mount is installed) is generally 3-4% for grass ground and 10% for concrete surface against direct light from the sun. Since the sand surface is 15% and the snow surface is 80 to 90%, it has been found that the irradiation of the reflected light greatly affects the deterioration of the protective sheet.

Moreover, since the reflectance of sunlight varies depending on the state of the ground at the installation location as described above, it is clear that the radiation intensity of sunlight (reflected light) irradiated on the protective sheet varies depending on the installation location. became.
Still further, the reflected light from the ground (installation surface) of the installation site is absorbed by light on the reflection surface, that is, the ground (installation surface) of the installation site. In addition, it has a spectral radiation distribution different from the spectral radiation distribution of sunlight that is irradiated onto the protective sheet, and in addition, the protective sheet is irradiated due to the difference in the light absorption characteristics of sunlight depending on the state of the ground at the installation location It became clear that the spectral radiation distribution of sunlight (reflected light) changes depending on the installation location.

As described above, when the solar cell module is installed on a gantry having a certain height, the protective sheet on the back surface of the solar cell module is provided on the ground of the solar cell module installation location (the gantry installation surface) The reflected light does not necessarily have the same spectral radiation distribution as the sunlight irradiated on the surface of the solar cell module, and the radiation intensity and spectral radiation distribution of the reflected light are not necessarily the same. Since it differs depending on the condition of the ground (installation surface) of the installation site, in order to perform a life acceleration test under the test conditions in accordance with the practical use conditions, It has become clear that the influence of the reflected light from the installation surface) on the protective sheet on the back surface of the solar cell module needs to be considered depending on the installation location.
Furthermore, depending on the installation location, the atmospheric conditions such as the temperature condition and the humidity condition on the front surface side and the back surface side of the solar cell module may be different. It became clear that it was necessary to consider the influence of different situations on the protective sheet on the back of the solar cell module.

  However, the conventional solar cell test light irradiation device irradiates the test light from the surface side of the solar cell module only to the surface of the solar cell module, and the solar cell from the back side of the solar cell module. Since the configuration does not take into account the influence of sunlight irradiated on the back surface of the module, the life acceleration test cannot be performed under the test conditions in accordance with the practical use conditions. Of course, it is not a structure in which the influence of the atmospheric conditions such as the temperature condition and the humidity condition on the front surface side and the back surface side of the solar cell module is taken into consideration.

  Moreover, in the solar cell light irradiation device, solar cell modules having various structures such as a crystalline solar cell module and a thin film solar cell module have been proposed. In the battery module, since the life test conditions differ depending on the structure, it is necessary to prepare a dedicated device according to the structure of the solar cell module that is the test object.

  That is, in the solar cell module, the ultraviolet irradiation conditions for the life test are different depending on the structure. Specifically, the ultraviolet irradiation condition of the life test of the crystalline solar cell module is defined in Japanese Industrial Standard (JIS) number C8990, while the ultraviolet irradiation condition of the life test of the thin film solar cell module is Japan. It is defined in the industrial standard (JIS) number C8991. Therefore, even when performing a life acceleration test of a crystalline solar cell module and a life acceleration test of a thin film solar cell module, it is necessary to comply with the respective standards. In the life acceleration test of the solar cell module, the spectral radiation distribution of the ultraviolet rays irradiated to the solar cell module to be tested is different.

  However, the conventional light irradiation device for solar cell testing is dedicated to either a crystalline solar cell module or a thin film solar cell module, and only supports one type of solar cell module to be tested. Since the ultraviolet irradiation conditions are set, a life acceleration test cannot be performed for solar cell modules having other structures.

JP 2011-018872 A JP 2011-228382 A

The present invention has been made on the basis of the circumstances as described above, and the first object thereof is an arbitrary test condition desired in a life acceleration test of a solar cell module using an ultraviolet lamp as a pseudo solar light source. Accordingly, it is an object of the present invention to provide a solar cell test light irradiation apparatus that can form a test environment according to the conditions, and thus can increase acceleration in accordance with practical use conditions.
Moreover, the 2nd objective is to provide the light irradiation apparatus for a solar cell test which can implement a lifetime acceleration test with respect to both a crystalline solar cell module and a thin film solar cell module.

The light irradiation device for solar cell test of the present invention includes a chamber for internally holding a panel made of solar cell modules to be tested,
A first light irradiation unit comprising a first ultraviolet light source composed of a plurality of ultraviolet lamps, and irradiating the surface of the panel with light containing ultraviolet light from the first ultraviolet light source;
A second light irradiation unit comprising a second ultraviolet light source composed of a plurality of ultraviolet lamps, and irradiating the back surface of the panel with light containing ultraviolet light from the second ultraviolet light source;
A radiation control mechanism of the first light irradiation unit;
A radiation light control mechanism of the second light irradiation unit,
The spectral radiation distribution of the light emitted from the second light irradiation unit can be adjusted by the radiation control mechanism of the second light irradiation unit.

In the solar cell test light irradiation apparatus of the present invention, the second ultraviolet light source in the second light irradiation unit includes a plurality of ultraviolet lamps A and ultraviolet lamps B having a spectral radiation distribution different from the ultraviolet lamp A. More than one
The radiation light control mechanism of the second light irradiation unit turns on the light selected from the plurality of the ultraviolet lamps A and the plurality of the ultraviolet lamps B, so that the light emitted from the second light irradiation unit is emitted. It preferably has a function of adjusting the spectral radiation distribution.

  In the solar cell test light irradiation apparatus of the present invention, the radiation light control mechanism of the second light irradiation unit is configured to transmit light from a second ultraviolet light source provided to be replaceable with the second light irradiation unit. A spectrum of light emitted from the second light emitting unit by using a wavelength selective filter that transmits light of a specific wavelength, and having a specific wavelength selectivity as the wavelength selective filter The radiation distribution is preferably adjusted.

  In the solar cell test light irradiation apparatus of the present invention, the radiation light control mechanism of the second light irradiation unit controls at least one of the number of ultraviolet lamps to be lit and the amount of electric power supplied to the ultraviolet lamps. It is preferable to have a function of adjusting the irradiance on the back surface of the panel.

  In the solar cell test light irradiation device of the present invention, the radiation light control mechanism of the second light irradiation unit is located between the second light irradiation unit and the held panel, on the back surface of the panel. It is preferable to have transmitted light adjusting means for adjusting irradiance.

In the solar cell test light irradiation device of the present invention, the internal space of the chamber is divided into a front-side space and a back-side space that are independent of each other by the panel while the panel is held,
The chamber is provided with a back-side circulation air passage forming member that forms a back-side circulation air passage that communicates with the back-side space. The back-side circulation air passage includes a blower, a circulating air cooling and dehumidifying device, and a circulation. It is preferable that a wind heating means and a circulating wind humidification means are provided.
Moreover, in such a solar cell test light irradiation device of the present invention, at least one of the air blowing means, the circulating air cooling / dehumidifying means, the circulating air heating means, and the circulating air humidifying means operates under selected conditions. It is preferable that the control mechanism is used.

  In the solar cell test light irradiation apparatus of the present invention, the spectral radiation distribution of the light emitted from the first light irradiation unit can be adjusted by the radiation control mechanism of the first light irradiation unit. It is preferable to be configured.

  In the solar cell test light irradiation device of the present invention, it is preferable that the radiation control mechanism of the first light irradiation unit has a function of adjusting the irradiance on the panel surface.

  In the solar cell test light irradiation apparatus of the present invention, the chamber is provided with a surface-side circulation air passage forming member that forms a surface-side circulation air passage that communicates with the surface-side space. The passage is preferably provided with a blowing means, a circulating air cooling / dehumidifying means, a circulating air heating means, and a circulating air humidifying means.

  The solar cell test light irradiation apparatus of the present invention has a test environment condition setting means, and in the test environment condition setting means, at least a spectral radiation distribution of light emitted from the second light irradiation unit is set. It is preferable.

In the light irradiation device for solar cell test of the present invention, the first light irradiation unit for irradiating the surface of the panel made of the solar cell module to be tested with the light on the back surface of the panel made of the solar cell module. A second light irradiation unit for irradiating the light is provided, and each of the first light irradiation unit and the second light irradiation unit is controlled by a dedicated radiation light control mechanism, and the second light irradiation unit The spectral radiation distribution of the light emitted from the second light irradiation unit can be adjusted independently of the spectral radiation distribution of the light emitted from the first light irradiation unit by the radiation control mechanism of the light irradiation unit. it can. Therefore, light (test light) can be irradiated also to the back surface of the panel made of the solar cell module, and the surface of the panel made of the solar cell module is applied to the back surface of the panel made of the solar cell module. It is possible to irradiate light having different spectral radiation distribution as well as light intensity.
Therefore, according to the solar cell test light irradiation device of the present invention, it is possible to irradiate light to the back surface of the panel made of the solar cell module as the test object, and to the front and back surfaces of the panel. Since each of them can be irradiated with light having different radiation intensity and spectral radiation distribution, it is possible to form a test environment according to any desired test condition in the life acceleration test of the solar cell module. The test can be performed under the test conditions according to the practical use conditions, and thus the acceleration can be increased according to the practical use conditions.

  Further, in the solar cell test light irradiation device of the present invention, the interior space of the chamber in a state where the panel made of the solar cell module to be tested is held is divided into the front side space and the back side space by the panel made of the solar cell module. Temperature condition and humidity condition in the back side space by providing a blowing means, a circulating wind cooling and dehumidifying means, a circulating wind heating means and a circulating wind humidifying means in the back side circulating air passage communicating with the back side space. Thus, the atmosphere of the back side space can have a temperature and humidity different from the atmosphere of the front side space. Therefore, in the life acceleration test of the solar cell module, the temperature and humidity conditions required in the atmosphere on the back side of the panel made of the solar cell module that is the test object are required in the atmosphere on the front side of the panel. Even when the temperature and humidity conditions are different from each other, the test can be performed under the test conditions according to the practical use conditions, and the acceleration can be increased according to the practical use conditions.

  In the solar cell test light irradiation device of the present invention, the configuration is such that the spectral radiation distribution of the light emitted from the first light irradiation unit can be adjusted by the radiation control mechanism of the first light irradiation unit. By doing so, it is possible to irradiate the surface of the panel composed of solar cell modules with light having any desired spectral radiation distribution, so the ultraviolet irradiation conditions (spectral irradiance distribution conditions) in the life acceleration test are different. The life acceleration test can be performed on both the crystalline solar cell module and the thin film solar cell module.

It is explanatory drawing which shows an example of a structure of the light irradiation apparatus for solar cell tests of this invention with the panel which consists of a solar cell module to be tested. It is explanatory drawing which shows an example of a structure of the solar cell module tested by the solar cell test light irradiation apparatus of this invention. It is explanatory drawing which shows the other example of a structure of the solar cell module tested by the solar cell test light irradiation apparatus of this invention. It is explanatory drawing which shows the structure of the 1st light irradiation unit which comprises the light irradiation apparatus for solar cell testing of FIG. 1, and the 2nd light irradiation unit with the panel which consists of a solar cell module to be tested. Spectral radiation distribution of each of the ultraviolet lamp A and the ultraviolet lamp B constituting the first ultraviolet light source in the first light irradiation unit of FIG. 4 and the second ultraviolet light source in the second light irradiation unit of FIG. FIG. 6 is a graph showing a spectral radiation distribution of light emitted when all ultraviolet lamps constituting the first ultraviolet light source and the second ultraviolet light source are turned on in one light irradiation unit and second light emission unit. is there. FIG. 5 is an explanatory diagram illustrating an adjustment example of a spectral radiation distribution of emitted light in the first light irradiation unit and the second light irradiation unit of FIG. 4. It is explanatory drawing which shows the outline of the principal part of the example of the other structure of the solar cell test light irradiation apparatus of this invention with the panel which consists of a solar cell module to be tested. It is explanatory drawing which shows the adjustment example of the radiation intensity of the light radiated | emitted in the 1st light irradiation unit of FIG. 7, and a 2nd light irradiation unit. It is explanatory drawing which shows the principal part of the example of the further another structure of the light irradiation apparatus for solar cell testing of this invention with the panel which consists of a solar cell module to be tested. In an example of the configuration of the transmitted light adjusting means constituting the first light irradiation unit and the second light irradiation unit in the solar cell test light irradiation apparatus of FIG. 9, part B of FIG. It is explanatory drawing which shows a state. It is explanatory drawing which shows the principal part of the example of the still another structure of the solar cell test light irradiation apparatus of this invention with the panel which consists of a solar cell module to be tested. In an example of the configuration of the transmitted light adjusting means constituting the first light irradiation unit and the second light irradiation unit in the solar cell test light irradiation apparatus of FIG. 11, part B of FIG. 11 is seen through from the direction of arrow A. It is explanatory drawing which shows a state. In another example of the configuration of the transmitted light adjusting means constituting the first light irradiation unit and the second light irradiation unit in the solar cell test light irradiation apparatus of FIG. 11, the portion B of FIG. It is explanatory drawing which shows the state seen through. It is explanatory drawing which shows an example of a structure of the conventional solar cell test light irradiation apparatus.

  Embodiments of the present invention will be described below.

[First Embodiment]
FIG. 1 is an explanatory view showing an example of the configuration of a solar cell test light irradiation apparatus according to the present invention, together with a panel made of solar cell modules to be tested.
The solar cell test light irradiation device (hereinafter also referred to as “first solar cell test light irradiation device”) 10 according to the first embodiment is a panel made of a solar cell module. A life test (life acceleration test) is performed on the solar cell module as the work W by irradiating the front and back surfaces (upper and lower surfaces in FIG. 1) of the work W with light including ultraviolet rays. ).

The test object of the first solar cell test light irradiation device, that is, the solar cell module as the workpiece W has a light receiving surface on the surface, and the constituent members constituting the light receiving surface are solar cells or solar cells. The cell unit is disposed on the surface of the sealing portion, and a protective sheet is disposed on the back surface of the sealing portion so as to face the light receiving surface. The structural member, sealing part, and protection sheet which comprise are fixed by the flame | frame.
Specifically, for example, a crystalline solar cell module including a plurality of solar cells 101 as shown in FIG. 2 or a plurality of solar cell units 121 on a common translucent substrate as shown in FIG. Examples include a thin film solar cell module provided.

  Here, in the crystalline solar cell module 100 of FIG. 2, each of the plurality of solar cells 101 is made of, for example, silicon polycrystal, and includes a semiconductor layer 102 having a P-type semiconductor layer and an N-type semiconductor layer. An antireflection film 103 made of, for example, a silicon nitride film (SiN film) or the like is provided on the surface of the layer 102 (upper surface in FIG. 2), and the surface of the antireflection film 103 (upper surface in FIG. 2) and the semiconductor layer 102. The electrodes 104A and 104B are formed by printing on the back surface (the lower surface in FIG. 2). The plurality of solar cells 101 are provided so as to cover the plurality of solar cells 101 and the interconnect material 105 in a state where they are arranged on the same plane and connected in series by the interconnect material 105 made of wires. For example, it is sealed by a sealing portion 107 made of a light-transmitting sealing material such as ethylene vinyl acetate copolymer (EVA), polyvinyl butyral (PVB), and silicone resin. On the surface of the sealing portion 107 (the upper surface in FIG. 2), a light-transmitting plate 108 made of highly light-transmitting glass or the like is provided for protection from the effects of external stress and water vapor. A light receiving surface is formed by the optical plate 108. Further, a film made of, for example, polyvinyl fluoride (PVF), polyethylene terephthalate (PET), or polyethylene (PE) is provided on the back surface (the lower surface in FIG. 2) of the sealing portion 107 so as to face the light transmitting plate 108. A protective sheet 109 having a water vapor barrier property called a back sheet, which has a multilayer film structure in which is laminated. In addition, an aluminum frame 112 for fixing the sealing portion 107 together with the light transmitting plate 108 and the protective sheet 109 is provided on the periphery of the light transmitting plate 108 and the protective sheet 109 with a sealing material 113 interposed therebetween. .

Further, in the thin film solar cell module 120 of FIG. 3, the plurality of solar cell units 121 are each indium tin oxide (ITO) on a common translucent substrate 123 made of glass or plastic constituting the light receiving surface. Transparent electrode 124A made of zinc oxide (ZnO), tin oxide (SnO ₂ ), etc., semiconductor layer 122 having a P-type semiconductor layer and an N-type semiconductor layer, indium tin oxide (ITO), zinc oxide (ZnO), A back electrode 124B made of tin oxide (SnO ₂ ) or silver (Ag) is laminated in this order. The plurality of solar cell units 121 have one end side (left end side in FIG. 3) of the semiconductor layer 122 in contact with the translucent substrate 123 and one end side of the back electrode 124B (left end side in FIG. 3). ) Is in contact with the transparent electrode 124 </ b> A of the adjacent solar cell unit 121. That is, the adjacent solar cell units 121 and 121 are connected in series by the transparent electrode 124A of one solar cell unit 121 and the back electrode 124B of the other solar cell 121, and as a result, a plurality of solar cell units. All 121 are connected in series. The plurality of solar cell units 121 connected in series are provided so as to cover the plurality of solar cell units 121, for example, ethylene vinyl acetate copolymer (EVA), polyvinyl butyral (PVB), and silicone resin. It is sealed by a sealing portion 127 made of a light-transmitting sealing material such as. A film made of, for example, polyvinyl fluoride (PVF), polyethylene terephthalate (PET), polyethylene (PE), or the like is provided on the back surface (lower surface in FIG. 3) of the sealing portion 127 so as to face the translucent substrate 123. A protective sheet 129 having a water vapor barrier property called a back sheet, which has a multilayer film structure in which is laminated. In addition, an aluminum frame 132 for fixing the sealing portion 127 together with the protective sheet 129 and the translucent substrate 123 is provided on the periphery of the protective sheet 129 and the translucent substrate 123 via a sealing material 133. ing.

The first solar cell test light irradiation device 10 is provided so as to block a rectangular cylindrical chamber 11 that holds and accommodates a workpiece W therein, and an opening above the chamber 11 (upper side in FIG. 1). A first ultraviolet light source composed of a plurality of ultraviolet lamps 21 is disposed inside a box-shaped lamp housing 22 that opens one side (downward in FIG. 1) with a light emission port 22A. And a second ultraviolet light source comprising a plurality of ultraviolet lamps 26 provided so as to block the opening below the chamber 11 (downward in FIG. 1) on one side (upper side in FIG. 1). The second light irradiation unit 25 is provided inside a box-shaped lamp casing 27 that opens the light emission port 27A.
In the first solar cell test light irradiation apparatus 10, the inside of the chamber 11 is surrounded by the peripheral wall portion 11 </ b> A of the chamber 11, the first light irradiation unit 20, and the second light emission unit 25. A space for accommodating the workpiece W is formed. Further, outside the chamber 11, a first power supply unit 24 for supplying electric power to each of the plurality of ultraviolet lamps 21 constituting the first ultraviolet light source in the first light irradiation unit 20, And a second power supply unit 29 for supplying power to each of the plurality of ultraviolet lamps 26 constituting the second ultraviolet light source in the two light irradiation units 25, and these first power supplies The unit 24 and the second power supply unit 29 are connected to the main control unit 19 via the first control unit 18A and the second control unit 18B.

In the chamber 11, inside the chamber 11, the opening end face of the light emitting port 22 </ b> A of the lamp housing 22 in the first light emitting unit 20 and the light of the lamp housing 27 in the second light emitting unit 25 are provided. A work support portion 12 for holding the work W in a state parallel to these opening end faces is provided at a position where the distance from the opening end face of the radiation port 27A is the same.
The workpiece support portion 12 is provided with a workpiece placement convex portion 13 provided on the inner peripheral surface of the peripheral wall portion 11A of the chamber 11 and the workpiece W placed on the workpiece placement convex portion 13 on the upper side (FIG. 1). It is comprised by the board member 14 for fixation arrange | positioned so that it may pinch | interpose from the upper side in this.

The workpiece placement convex portion 13 constituting the workpiece support portion 12 is provided in a rectangular ring shape over the entire inner peripheral surface of the peripheral wall portion 11A of the chamber 11, and is in a direction perpendicular to the inner peripheral surface of the peripheral wall portion 11A. And a step is formed on the surface side (upper surface side in FIG. 1) of the distal end portion so that the thickness of the distal end portion becomes smaller than the thickness of the proximal end portion. The peripheral portion (specifically, the frame) of the solar cell module as the work W is placed on the lower end portion.
In the workpiece placement convex portion 13, the height of the protrusion from the inner peripheral surface of the peripheral wall portion 11 </ b> A in the chamber 11 (the dimension in the left-right direction in FIG. 1) is a rectangle formed by the tip of the workpiece placement convex portion 13. The size of the opening (hereinafter, also referred to as “opening between work support portions”) is such that it has an inner diameter (opening diameter) applied to the surface of the protective sheet of the solar cell module as the work W, and The length of the tip portion (the dimension in the left-right direction in FIG. 1) is such that the entire surface of the protective sheet of the solar cell module as the workpiece W is placed between the workpiece support portions by placing the peripheral portion of the workpiece W on the tip portion. It is dimensioned to be located in the region above the opening.
In the example of this figure, the side surface of the frame is in contact with the tip of the workpiece mounting convex portion 13 together with the back surface of the frame of the solar cell module as the workpiece W.

  And as for the convex part 13 for workpiece | work mounting, the solar cell module as the workpiece | work W is arrange | positioned, and only the flame | frame contacted the surface of the front-end | tip part of the said convex part 13 for workpiece | work placement by the back surface of a solar cell module. Thus, the entire surface of the protective sheet of the solar cell module is exposed to the second light irradiation unit 25 side through the opening between the work support portions.

Further, the fixing plate member 14 constituting the work support portion 12 is formed of a B-shaped flat plate, that is, a flat plate having a rectangular opening at the center. The flat plate constituting the fixing plate member 14 has an outer diameter applied to the opening of the chamber 11 (specifically, an upper opening) and an inner diameter applied to the light receiving surface of the solar cell module as the workpiece W ( Open diameter).
The fixing plate member 14 is arranged on the solar cell module as the workpiece W placed on the workpiece placement convex portion 13, so that only the frame is in contact with the surface of the solar cell module. Therefore, the entire light receiving surface of the solar cell module is exposed to the first light emitting unit 20 side through the opening of the fixing plate member 14.
In the example of this figure, the fixing plate member 14 is in a state of being in contact with the surface of the base end portion of the workpiece mounting convex portion together with the surface of the frame of the solar cell module as the workpiece W.

Thus, in the first solar cell test light irradiation apparatus 10, the work W is held by the work support portion 12 inside the chamber 11, and thereby a space for accommodating the work W inside the chamber 11. Are divided into a front surface side space S1 located on the front surface side (upper surface side in FIG. 1) and a rear surface side space S2 located on the rear surface side (lower surface side in FIG. 1) of the work W. Will be. In the surface-side space S1, the light receiving surface on the surface of the solar cell module as the workpiece W (specifically, when the solar cell module as the workpiece W is the crystalline solar cell module 100, the translucent plate 108). In the case of the thin film solar cell module 120, the surface of the translucent substrate 123) is exposed from the opening of the fixing plate member 14. On the other hand, in the back surface side space S <b> 2, the surface of the protective sheet on the back surface of the solar cell module is exposed from the opening between the workpiece support portions related to the workpiece placement convex portion 13.
Here, the surface side space S1 formed by holding the workpiece W in the chamber 11 is surrounded by the workpiece W, the peripheral wall portion 11A of the chamber 11, and the first light irradiation unit 20, and is a closed space. In addition, the back surface side space S2 is surrounded by the work W, the peripheral wall portion 11A of the chamber 11, and the second light irradiation unit 25 to be a closed space.

Further, in the first solar cell test light irradiation apparatus 10, the chamber 11 is supplied with air for adjusting the temperature and humidity in the surface-side space S1 in the region surrounding the surface-side space S1 in the peripheral portion 11A. The first introduction opening 16A for introducing the atmosphere adjustment medium (hereinafter also referred to as “first circulation air”) and the first circulation air introduced from the first introduction opening 16A are discharged. Therefore, the first discharge opening 16B is formed so as to face each other. In addition, the first introduction opening 16A and the first discharge opening 16B communicate with the surface side space S1 and circulate the surface side circulation air passage (hereinafter referred to as “first circulation air passage” for circulating the first circulation air). A surface-side circulation air passage forming member for forming 30 is also provided.
The first circulating air passage 30 has a first air blowing means 31 for sending and circulating the first circulating air, and a first circulating air cooling for cooling and dehumidifying the first circulating air. The dehumidifying means 32, the first circulating wind heating means 33 for heating the first circulating air, and the first circulating wind humidifying means 34 for humidifying the first circulating air are provided from the upstream side to the downstream side. It is provided in this order toward. And these 1st ventilation means 31, the 1st circulation wind cooling dehumidification means 32, the 1st circulation wind heating means 33, and the 1st circulation wind humidification means 34 are respectively via the 1st control part 18A. Connected to the main control unit 19.
In the example of this figure, the direction of circulation of the first circulating air in the first circulating air passage 30 is indicated by an arrow.

In the first circulation air passage 30, a first temperature monitor 35 and a first humidity monitor 36 are arranged in this order from the upstream side to the downstream side on the downstream side of the first circulation air humidification means 34. The first temperature monitor 35 and the first humidity monitor 36 are provided, and are connected to the main controller 19 via the first controller 18A.
The first temperature monitor 35 measures the temperature of the first circulating air flowing through the first circulating air passage 30, and the measurement result is transmitted to the first control unit 18A.
The first humidity monitor 36 measures the humidity of the first circulating air flowing through the first circulating air passage 30, and the measurement result is transmitted to the first control unit 18A.

Further, the chamber 11 includes an atmosphere adjustment medium (hereinafter, “second circulating air”) including air for adjusting the temperature and humidity in the back surface side space S2 in a region surrounding the back surface side space S2 in the peripheral portion 11A. The second introduction opening 17A for introducing the second introduction opening 17A and the second discharge opening 17B for discharging the second circulating air introduced from the second introduction opening 17A face each other. It is formed as follows. Further, the second introduction opening 17A and the second discharge opening 17B communicate with the rear surface side space S2 and circulate the second circulating air (hereinafter referred to as “second air circulation passage”). A rear-side circulation air passage forming member for forming 40 is also provided.
The second circulating air passage 40 has a second air blowing means 41 for sending and circulating the second circulating air, and a second circulating wind cooling for cooling and dehumidifying the second circulating air. The dehumidifying means 42, the second circulating wind heating means 43 for heating the second circulating air, and the second circulating wind humidifying means 44 for humidifying the second circulating air are provided from the upstream side to the downstream side. It is provided in this order toward. And these 2nd ventilation means 41, the 2nd circulation wind cooling dehumidification means 42, the 2nd circulation wind heating means 43, and the 2nd circulation wind humidification means 44 are respectively via 2nd control part 18B. Connected to the main control unit 19.
In the example of this figure, the direction of circulation of the second circulating air in the second circulating air passage 40 is indicated by an arrow.

In the second circulation air passage 40, a second temperature monitor 45 and a second humidity monitor 46 are arranged in this order from the upstream side to the downstream side on the downstream side of the second circulation wind humidification means 44. The second temperature monitor 45 and the second humidity monitor 46 are connected to the main controller 19 via the second controller 18B.
The second temperature monitor 45 measures the temperature of the second circulating air flowing through the second circulating air passage 40, and the measurement result is transmitted to the second control unit 18B.
The second humidity monitor 46 measures the humidity of the second circulating air flowing through the second circulating air passage 40, and the measurement result is transmitted to the second control unit 18B.

The first light emitting unit 20 includes a substantially rectangular box-shaped lamp housing 22 having a light emitting opening 22 </ b> A, and a plurality of rod-shaped ultraviolet lamps 21 arranged inside the lamp housing 22. A solar cell module comprising a first ultraviolet light source and a first power supply unit 24 for supplying electric power to each ultraviolet lamp 21, and using light including ultraviolet rays from the first ultraviolet light source as a work W Irradiates the light receiving surface on the surface of
In the first light irradiation unit 20, the plurality of ultraviolet lamps 21 constituting the first ultraviolet light source are the same as those of the workpiece W in a state where each ultraviolet lamp 21 is supported by the workpiece support portion 12 in the chamber 11. It is arranged so as to face the surface or the surface of the workpiece support portion 12, so that the irradiation area is set to be larger than the workpiece W held in the chamber 11.
In the example of this figure, each of the plurality of ultraviolet lamps 21 constituting the first ultraviolet light source has any one of two planes in which each lamp central axis is parallel to the opening end face of the light emission port 22A of the lamp housing 22. Is located. A plurality of the ultraviolet lamps 21 whose lamp central axes are located in one plane of the two planes on the side of the light emission port 22 </ b> A are arranged in parallel and spaced apart from each other at an interval equivalent to the outer diameter of the ultraviolet lamp 21. In addition, the plurality of ultraviolet lamps 21 whose lamp central axes are located in one plane on the bottom 22B side of the lamp housing 22 are spaced apart from each other at an interval equivalent to the outer diameter of the ultraviolet lamp 21, and the light emission port 22A. The ultraviolet lamps 21 located on the side are arranged in parallel so as to be positioned in a region corresponding to the gap between adjacent lamps or the outer position of the ultraviolet lamp 21 located at the end.

Further, as shown in FIG. 4, the plurality of ultraviolet lamps 21 constituting the first ultraviolet light source are two kinds of ultraviolet lamps having different spectral radiation distributions, specifically, a spectral shown by a curve (A) in FIG. An ultraviolet lamp A having a radiation distribution and an ultraviolet lamp B having a spectral radiation distribution indicated by a curve (B) in FIG.
These ultraviolet lamp A and ultraviolet lamp B only have to be used as a pseudo solar light source used in the life acceleration test of the solar cell module, and for example, a rare gas fluorescent lamp can be used.
In the example of this figure, an ultraviolet lamp A is used as a plurality (specifically, 18) of ultraviolet lamps 21 positioned on the light emission port 22A side, and on the bottom 22B side of the lamp housing 22. An ultraviolet lamp B is used as a plurality (specifically, 18) of ultraviolet lamps 21 positioned.

As shown in FIG. 4, the second light emitting unit 25 has the same configuration as that of the first light emitting unit 20, and is a substantially rectangular parallelepiped box-shaped lamp housing having a light emitting port 27A. 27, a second ultraviolet light source composed of a plurality of rod-shaped ultraviolet lamps 26 disposed inside the lamp housing 27, and a second power supply unit 29 that supplies electric power to each ultraviolet lamp 26. In this case, the surface of the protective sheet on the back surface of the solar cell module as the work W is irradiated with light containing ultraviolet rays from the second ultraviolet light source.
In the second light irradiation unit 25, the plurality of ultraviolet lamps 26 constituting the second ultraviolet light source are the same as those of the workpiece W in a state where each ultraviolet lamp 26 is supported by the workpiece support portion 12 in the chamber 11. The back surface or the back surface of the workpiece support portion 12 is disposed so as to face the back surface. Therefore, the irradiation area is set to be larger than the work W held in the chamber 11.
In the example of this figure, each of the plurality of ultraviolet lamps 26 constituting the second ultraviolet light source has one of two planes in which each lamp central axis is parallel to the opening end face of the light emission port 27A of the lamp casing 27. Located in. A plurality of ultraviolet lamps 26 whose lamp central axes are located in one plane of the two planes on the side of the light emission port 27 </ b> A are arranged in parallel and spaced apart from each other at an interval equal to the outer diameter of the ultraviolet lamp 26. In addition, the plurality of ultraviolet lamps 26 whose lamp central axes are located in one plane on the bottom 27B side of the lamp casing 27 are spaced apart from each other at an interval equivalent to the outer diameter of the ultraviolet lamp 26, and are on the light emission port 27A side Are arranged in parallel so as to be located in a region corresponding to the outer position of the ultraviolet lamp 26 located at the gap or the end of the lamps adjacent to each other.

In addition, as shown in FIG. 4, the plurality of ultraviolet lamps 26 constituting the second ultraviolet light source include two types of ultraviolet lamps having different spectral radiation distributions, as in the ultraviolet lamp 21 constituting the first ultraviolet light source, Specifically, it is constituted by an ultraviolet lamp A having a spectral radiation distribution indicated by a curve (A) in FIG. 5 and an ultraviolet lamp B having a spectral radiation distribution indicated by a curve (B) in FIG.
In the example of this figure, an ultraviolet lamp A is used as a plurality (specifically, 18) of ultraviolet lamps 26 positioned on the light emission port 27A side, and on the bottom 27B side of the lamp casing 27. The ultraviolet lamp B is used as a plurality (specifically, 18) of ultraviolet lamps 26 positioned.

18 A of 1st control parts are the 1st ventilation means 31 based on the measurement result of the radiation light control mechanism of the 1st light irradiation unit 20, and the 1st temperature monitor 35 and the 1st humidity monitor 36, 1st. The circulating air cooling / dehumidifying means 32, the first circulating air heating means 33, and the first circulating air humidifying means 34 function as an atmosphere control mechanism.
The emitted light control mechanism of the first light irradiation unit 20 by the first controller 18A specifically has the following lighting control functions (1) to (3).

(1) Among the plurality of ultraviolet lamps 21 constituting the first ultraviolet light source, a plurality of ultraviolet lamps A positioned on the light emission port 22A side (hereinafter collectively referred to as “first lamp A group”) 21A, and a plurality of ultraviolet lamps B positioned on the bottom 22B side of the lamp housing 22 among the plurality of ultraviolet lamps 21 constituting the first ultraviolet light source (hereinafter, these are collectively referred to as “ Also referred to as “first lamp group B.”) A function of turning on the lamp selected from 21B and adjusting the spectral radiation distribution of the light emitted from the first light radiation unit 20 thereby.
(2) The number of the ultraviolet lamps A to be turned on among the ultraviolet lamps A constituting the first lamp A group 21A in the first ultraviolet light source, and the first lamp B group 21B in the first ultraviolet light source The number of illuminating ultraviolet lamps B among the illuminating ultraviolet lamps B is controlled, thereby adjusting the irradiance on the surface of the workpiece W, that is, adjusting the radiation intensity of light emitted from the first light emitting unit 20. Function to do.
(3) The amount of electric power supplied to the ultraviolet lamp A constituting the first lamp A group 21A and the ultraviolet lamp B constituting the first lamp B group 21B in the first ultraviolet light source is controlled. A function of adjusting the irradiance on the surface of W, that is, adjusting the radiation intensity of light emitted from the first light emitting unit 20.

The second control unit 18B includes the second blower unit 41, the second blower unit 41, and the second blower unit 41 based on the radiation light control mechanism of the second light irradiation unit 25 and the measurement results of the second temperature monitor 45 and the second humidity monitor 46. The circulating air cooling / dehumidifying means 42, the second circulating air heating means 43, and the second circulating air humidifying means 44 act as an atmosphere control mechanism.
The emitted light control mechanism of the second light irradiation unit 25 by the second controller 18B specifically has the following lighting control functions (1) to (3).

(1) Among the plurality of ultraviolet lamps 26 constituting the second ultraviolet light source, a plurality of ultraviolet lamps A positioned on the light emission port 22A side (hereinafter collectively referred to as “second lamp A group”) 26A and a plurality of ultraviolet lamps B positioned on the bottom 27B side of the lamp casing 27 among the plurality of ultraviolet lamps 26 constituting the second ultraviolet light source (hereinafter, these are collectively referred to as “ Also referred to as “second lamp group B.”) A function of turning on a lamp selected from 26B and adjusting the spectral radiation distribution of the light emitted from the second light radiation unit 25.
(2) The number of ultraviolet lamps A to be turned on among the ultraviolet lamps A constituting the second lamp A group 26A in the second ultraviolet light source, and the second lamp B group 26B in the second ultraviolet light source The number of illuminating ultraviolet lamps B among the illuminating ultraviolet lamps B is controlled, thereby adjusting the irradiance on the surface of the workpiece W, that is, adjusting the radiation intensity of light emitted from the second light emitting unit 25. Function to do.
(3) The amount of electric power supplied to the ultraviolet lamp A constituting the second lamp A group 26A and the ultraviolet lamp B constituting the second lamp B group 26B in the second ultraviolet light source is controlled. A function of adjusting the irradiance on the surface of W, that is, adjusting the radiation intensity of light emitted from the second light emitting unit 25.

  The main control unit 19 corresponds to the type of solar cell module and the installation location of the solar cell module stored in advance, based on the information on the type and installation location of the solar cell module as the work W to be tested. Conditions for lighting control of the first light irradiation unit 20 and the second light irradiation unit 25 performed by the first control unit 18A and the second control unit 18B are selected as appropriate from various test conditions. And it acts as a test environment setting means for setting the atmosphere control conditions in the first circulation air passage 30 and the second circulation air passage 40.

  According to the first solar cell test light irradiation device 10 having such a configuration, the solar cell module as the workpiece W is held in the chamber 11 by being supported by the workpiece support portion 12, thereby the chamber 11 is divided into a front surface side space S1 and a back surface side space S2, and the solar cell module is in a state where the light receiving surface on the front surface is exposed to the front surface side space S1, and the surface of the protective sheet on the back surface Is exposed to the back side space S2. Then, in the first light irradiation unit 20 and the second light irradiation unit 25, the ultraviolet lamp 21 constituting the first ultraviolet light source and the ultraviolet lamp 26 constituting the second ultraviolet light source are turned on, so that the sun The surface of the battery module, specifically the light receiving surface of the solar cell module, is irradiated with light containing ultraviolet rays from the first ultraviolet light source emitted from the first light irradiation unit 20, while the solar cell. The back surface of the module, specifically, the surface of the protective sheet of the solar cell module is irradiated with light including ultraviolet rays from the second ultraviolet light source emitted from the second light irradiation unit 25, A life acceleration test is performed on the solar cell module.

Thus, in the first solar cell test light irradiation device 10, the internal space of the chamber 11 in which the solar cell module is held is divided into the back surface side space S2 and the front surface side space S1, and the surface In the side space S1, a first circulation air passage 30 communicating with the front surface side space S1 is provided, and in the back surface space S2, a second circulation air passage 40 communicating with the back surface side space S2. Is provided in the first circulation air passage 30 by the first control unit 18A and the second control unit 18B based on the test conditions appropriately selected by the main control unit 19. By circulating the second circulating air through the air and the second circulating air passage 40, the atmosphere in the front surface side space S1 and the rear surface side space S2 can be individually adjusted.
Specifically, in the surface-side space S1, the first air blower 31, the first circulating wind cooling / dehumidifying unit 32, the first circulating wind heating unit 33, and the first circulation are performed by the first controller 18A. The wind humidifying means 34 is operated under a predetermined selection condition determined in advance, and is feedback-controlled based on the measurement results of the first temperature monitor 35 and the first humidity monitor 36, whereby the first circulation is performed. Since the temperature and humidity of the air are adjusted, the atmosphere is adjusted.
Here, in the first circulating air passage 30, after the air sent out by the first air blowing means 31 is cooled and dehumidified by the first circulating air cooling / dehumidifying means 32, the first circulating air cooling / dehumidifying means. The dehumidified dry air sent from 32 is heated by the first circulating wind heating means 33, and steam is further injected into the air sent from the first circulating wind heating means 33 by the first circulating wind humidifying means 34. By doing so, the temperature and humidity of the 1st circulation air which distribute | circulates the surface side space S1 in the 1st circulation air path 30 and the chamber 11 are adjusted.
Further, in the back surface side space S2, the second controller 18B causes the second air blowing means 41, the second circulating air cooling / dehumidifying means 42, the second circulating air heating means 43, and the second circulating air humidifying means. 44 is operated under predetermined selection conditions determined in advance, and is feedback-controlled based on the measurement results of the second temperature monitor 45 and the second humidity monitor 46, whereby the temperature of the second circulating air is Since the humidity is adjusted, the atmosphere is adjusted.
Here, in the second circulating air passage 40, after the air sent out by the second air blowing means 41 is cooled and dehumidified by the second circulating air cooling / dehumidifying means 42, the second circulating air cooling / dehumidifying means. The dehumidified dry air sent out from 42 is heated by the second circulating wind heating means 43, and steam is injected into the air sent out from the second circulating wind heating means 43 by the second circulating wind humidifying means 44. By doing this, the temperature and humidity of the second circulating air flowing through the second circulating air passage 40 and the back surface side space S2 in the chamber 11 are adjusted.

Moreover, in the 1st solar cell test light irradiation apparatus 10, while the 1st light irradiation unit 20 is provided in the surface side of the workpiece | work W, the 2nd light irradiation unit is provided in the back surface side of the workpiece | work W. 25, and the first light irradiation unit 20 and the second light irradiation unit 25 include two types of ultraviolet lamps A in which the first ultraviolet light source and the second ultraviolet light source have different spectral radiation distributions. And the ultraviolet lamp B, the first control unit 18A and the second control unit 18B perform the first ultraviolet light source and the second control unit 18B based on the test conditions appropriately selected by the main control unit 19. In each of the ultraviolet light sources, the second light irradiation unit 25 and the first light emission unit 20 are turned on by lighting one selected from the lamp A group and the lamp B group. Spectral radiation distribution of the emitted light, i.e. the spectral irradiance distribution at the surface and the back surface of the workpiece W can be adjusted individually.
Further, in the first light irradiation unit 20 and the second light irradiation unit 25, the number of the ultraviolet lamps A and the number of the ultraviolet lamps B to be turned on are controlled, or the ultraviolet lamp A and the ultraviolet lamp B are respectively controlled. By controlling the amount of supplied power, the spectral radiation distribution is adjusted, and the radiation intensity of light radiated to the front and back surfaces of the workpiece W, that is, the irradiance on the front and back surfaces of the workpiece W is individually determined. Can be adjusted.

Here, an example of adjusting the spectral radiation distribution of light emitted from each of the first light irradiation unit 20 and the second light irradiation unit 25 will be described with reference to FIG.
In FIG. 6, the ultraviolet lamp 21 related to the first light irradiation unit 20 and the ultraviolet lamp 26 related to the second light irradiation unit 25 that are turned off are shown in black.

As shown in FIG. 6 (a), in the first light irradiation unit 20, it is selected to turn on only the first lamp group 21A among the ultraviolet lamps 21 constituting the first ultraviolet light source, and the first When all the ultraviolet lamps 21 belonging to one lamp A group 21A are turned on, while all the ultraviolet lamps 21 belonging to the first lamp B group 21B are turned off, the first light irradiation unit 20 emits radiation. The emitted light has a spectral radiation distribution related to the ultraviolet lamp A, specifically, a spectral radiation distribution shown by a curve (A) in FIG. Further, in the second light irradiation unit 25, as in the first light irradiation unit 20, only the second lamp A group 26A among the ultraviolet lamps 26 constituting the second ultraviolet light source is turned on. In addition, all of the ultraviolet lamps 26 belonging to the second lamp A group 26A among the plurality of ultraviolet lamps 26 constituting the second ultraviolet light source are turned on, while the ultraviolet lamps belonging to the second lamp B group 26B. When all of 26 are turned off, the light emitted from the second light irradiation unit 25 is the spectral radiation distribution relating to the ultraviolet lamp A, specifically, the spectral radiation shown by the curve (A) in FIG. It will have a distribution.
As shown in FIG. 6 (b), in the first light irradiation unit 20, it is selected to turn on only the first lamp B group 21B among the plurality of ultraviolet lamps 21 constituting the first ultraviolet light source. When all of the ultraviolet lamps 21 belonging to the first lamp B group 21B are turned on, while all of the ultraviolet lamps 21 belonging to the first lamp A group 21A are turned off, the first light irradiation unit The light emitted from 20 has a spectral radiation distribution related to the ultraviolet lamp B, specifically, a spectral radiation distribution indicated by a curve (B) in FIG. Further, in the second light irradiation unit 25, as in the first light irradiation unit 20, only the second lamp B group 26B among the ultraviolet lamps 26 constituting the second ultraviolet light source is turned on. When all the ultraviolet lamps 26 belonging to the second lamp B group 26B are turned on, and all the ultraviolet lamps 26 belonging to the second lamp A group 26A are turned off, the second light irradiation is performed. The light emitted from the unit 25 has a spectral radiation distribution related to the ultraviolet lamp B, specifically, a spectral radiation distribution shown by a curve (B) in FIG.
In addition, as shown in FIG. 6C, in the first light irradiation unit 20, both the first lamp A group 21A and the first lamp B group 21B constituting the first ultraviolet light source are turned on. All of the ultraviolet lamps 21 that are selected and belong to the first lamp A group 21A and the first lamp B group 21B are turned on, and the ultraviolet lamp 21 and the first lamp B group that belong to the first lamp A group 21A When the power supplied to each of the ultraviolet lamps 21 belonging to 21B is adjusted, the light emitted from the first light irradiation unit 20 has a spectral radiation distribution indicated by a curve (C) in FIG. The radiation intensity is adjusted. Further, in the second light irradiation unit 25, similarly to the first light irradiation unit 20, both the second lamp A group 26A and the second lamp B group 26B constituting the second ultraviolet light source are turned on. And the ultraviolet lamps 26 belonging to the second lamp A group 26A and the second lamp B group 26B are all turned on, and the ultraviolet lamps 26 and the second lamp B belonging to the second lamp A group 26A. When the electric power supplied to each of the ultraviolet lamps 26 belonging to the group 26B is adjusted, the light emitted from the second light irradiation unit 25 has a spectral radiation distribution indicated by a curve (C) in FIG. The radiation intensity is adjusted.
In addition, as shown in FIG. 6D, in the first light irradiation unit 20, both the first lamp A group 21A and the first lamp B group 21B constituting the first ultraviolet light source are turned on. When every other UV lamp 21 that is selected and belongs to the first lamp A group 21A and the first lamp B group 21B is lit, the light emitted from the first light irradiation unit 20 is 5 has a spectral radiation distribution indicated by a curve (C), and the radiation intensity is adjusted. Further, in the second light irradiation unit 25, similarly to the first light irradiation unit 20, both the second lamp A group 26A and the second lamp B group 26B constituting the second ultraviolet light source are turned on. And when every other ultraviolet lamp 26 belonging to the second lamp A group 26A and the second lamp B group 26B is turned on, the light emitted from the second light irradiation unit 25 is 5 has the spectral radiation distribution indicated by the curve (C) in FIG. 5, and the radiation intensity is adjusted.

  Thus, according to the 1st solar cell test light irradiation apparatus 10, light can be irradiated also to the back surface of the solar cell module as the workpiece | work W, and also with respect to the surface and back surface of the said solar cell module Thus, it is possible to irradiate light having different radiation intensities and spectral radiation distributions, and it is possible to make the temperature condition and the humidity condition of the front surface side space S1 and the back surface side space S2 different from each other. In the test, it is possible to create a test environment according to the required test conditions regardless of the test conditions required according to the type and installation location of the solar cell module. The test can be performed under the test conditions according to the conditions, and hence the acceleration can be increased according to the practical use conditions.

  Furthermore, in the 1st solar cell test light irradiation apparatus 10, since the surface of the solar cell module as the workpiece | work W can be irradiated with the light which has arbitrary desired spectral radiation distribution, in a lifetime test The life acceleration test can be performed on both the crystalline solar cell module and the thin film solar cell module having different ultraviolet irradiation conditions (spectral irradiance distribution conditions).

[Second Embodiment]
FIG. 7 is an explanatory view showing an outline of the main part of another example of the configuration of the solar cell test light irradiation device of the present invention, together with a panel made of solar cell modules to be tested.
The solar cell test light irradiation device (hereinafter also referred to as “second solar cell test light irradiation device”) according to the second embodiment is a first ultraviolet light source as the first light irradiation unit 51. The first wavelength selection filter 52 that transmits light of a specific wavelength among the light emitted from the light source is replaceably provided, and the plurality of ultraviolet lamps 21 that constitute the first ultraviolet light source includes one type of ultraviolet light. As the second light irradiation unit 54, a wavelength selection filter 55 that transmits light of a specific wavelength out of light emitted from the second ultraviolet light source is replaceably provided. A plurality of ultraviolet lamps 26 constituting the second ultraviolet light source are configured by a single type of ultraviolet lamp, and the first control unit 18A and the second control unit 18B include: The first solar cell according to FIG. 1 except that each of the first ultraviolet light source and the second ultraviolet light source does not have a function of lighting one selected from the lamp A group and the lamp B group. It has the same configuration as the test light irradiation apparatus 10.
In the second solar cell test light irradiation device, the first wavelength selection filter 52 and the first control unit 18A constitute a radiation light control mechanism of the first light irradiation unit 51. The emitted light control mechanism of the second light irradiation unit 54 is configured by the second wavelength selection filter 55 and the second controller 18B.

  In the second solar cell test light irradiation apparatus, the first wavelength selection filter 52 is provided so as to block the light emission port 22A of the lamp housing 22, and the second wavelength selection filter 55 is provided. Is provided so as to block the light emission port 27A of the lamp casing 27.

  The first wavelength selection filter 52 and the second wavelength selection filter 55 are respectively the types of ultraviolet lamps (spectral radiation distribution of the ultraviolet lamps) constituting the ultraviolet light source, the first light irradiation unit 51 and the second light. Those having appropriate wavelength selection characteristics are used in accordance with the light radiation distribution characteristics required for each of the irradiation units 54. Therefore, the first wavelength selection filter 52 and the second wavelength selection filter 55 may have the same wavelength selection characteristics or different wavelength selection characteristics.

In the second solar cell test light irradiation device having such a configuration, the first light irradiation unit 51 is provided on the front side of the work W, and the second light is provided on the back side of the work W. An irradiation unit 54 is provided, and the first light irradiation unit 51 and the second light irradiation unit 54 are provided with a first wavelength selection filter 52 and a second wavelength selection filter 55 in an exchangeable manner. Therefore, by using the first wavelength selection filter 52 and the second wavelength selection filter 55 having appropriate wavelength selection characteristics, the first light irradiation unit 51 and the second light emission unit 54 emit radiation. The spectral irradiance distribution of the light to be emitted, that is, the spectral irradiance distribution on the front and back surfaces of the workpiece W can be individually adjusted.
Moreover, in the 1st light irradiation unit 51 and the 2nd light irradiation unit 54, respectively, the number of the ultraviolet lamps 21 and 26 to light is controlled, or the electric energy supplied to the ultraviolet lamps 21 and 26 is controlled. Thereby, the radiant intensity of the light radiated | emitted with respect to the surface and back surface of the workpiece | work W, ie, the irradiance in the surface and back surface of the workpiece | work W, can be adjusted separately.

Here, the radiation intensity of the light emitted from each of the first light irradiation unit 51 and the second light irradiation unit 54 is, for example, as shown in FIG. In any of the second light irradiation units 54, turning on all the ultraviolet lamps 21 and the ultraviolet lamps 26 constituting the first ultraviolet light source and the second ultraviolet light source, as shown in FIG. In both the first light irradiation unit 51 and the second light irradiation unit 54, 2/3 of the ultraviolet lamp 21 and the ultraviolet lamp 26 constituting the first ultraviolet light source and the second ultraviolet light source are turned on. In addition, as shown in FIG. 8C, both the first light irradiation unit 51 and the second light irradiation unit 54 have the first ultraviolet light source and the second ultraviolet light. One half of the ultraviolet lamp 21 and the ultraviolet lamp 26 constituting the light source is turned on, or as shown in FIG. 8D, either the first light irradiation unit 51 or the second light irradiation unit 54 is used. In this case, adjustment can be made by turning on 1/3 of the ultraviolet lamp 21 and the ultraviolet lamp 26 constituting the first ultraviolet light source and the second ultraviolet light source.
In the case of adjusting the radiation intensity of the emitted light by controlling the number of the ultraviolet lamps 21 and 26 that are turned on in this way, the lamp that is turned off to maintain the irradiance distribution on the workpiece W as uniform as possible. As shown in FIGS. 8A to 8D, it is desirable that the position of is symmetrical with respect to a point corresponding to the center point of the workpiece as much as possible.
In FIG. 8, the ultraviolet lamps 21 and 26 that are turned off are shown in black.

According to the second solar cell test light irradiation device, similarly to the first solar cell test light irradiation device 10, light can be applied to the back surface of the solar cell module as the workpiece W, Moreover, the front and back surfaces of the solar cell module can be irradiated with light having different radiation intensity and spectral radiation distribution, respectively, and the temperature condition and humidity condition of the front surface side space S1 and the back surface side space S2 are different. Therefore, in solar cell module life acceleration tests, whatever test conditions are required depending on the type and location of the solar cell module, the test according to the required test conditions Since the environment can be formed, the test can be performed under the test conditions according to the practical use conditions, and thus the acceleration is increased according to the practical use conditions. It is possible.
Further, according to the second solar cell test light irradiation device, it is possible to irradiate the surface of the panel made of the solar cell module with light having any desired spectral radiation distribution. The lifetime acceleration test can be performed on both the crystalline solar cell module and the thin film solar cell module having different irradiation conditions (spectral irradiance distribution conditions).

[Third Embodiment]
FIG. 9 is an explanatory view showing a main part of still another example of the configuration of the solar cell test light irradiation device of the present invention, together with a panel made of the solar cell module to be tested.
The solar cell test light irradiation device (hereinafter also referred to as “third solar cell test light irradiation device”) according to the third embodiment is held in the chamber 11 as the first light irradiation unit 61. The first transmitted light adjusting means 62 is provided between the workpiece W and the ultraviolet lamp 21 constituting the first lamp B group 21B in the first ultraviolet light source, 22 is positioned so as to partially overlap the ultraviolet lamp 21 constituting the first lamp A group 21A on the projection plane in a direction parallel to the opening end face of the light emission port 22A as seen through from the light emission port 22A side. The second light irradiation unit 65 is provided with second transmitted light adjusting means 66 positioned between the workpiece W held in the chamber 11 and the second ultraviolet irradiation unit 65. Second in the light source The second lamp A group is formed on the projection plane in a direction parallel to the opening end face of the light emission port 27 </ b> A as seen from the light emission port 27 </ b> A side of the lamp housing 27. The first control unit 18A and the second control unit 18B control the number of the ultraviolet lamps 21 and 26 to be lit. It does not have a function and a function to control the amount of power supplied to the ultraviolet lamps 21 and 26, but has a function to control the operations of the first transmitted light adjusting means 62 and the second transmitted light adjusting means 66. Except for this, it has the same configuration as the first solar cell test light irradiation device 10 according to FIG.
In the third solar cell test light irradiation apparatus, the first transmitted light adjustment means 62 and the first control unit 18A constitute a radiation light control mechanism of the first light irradiation unit 61. Further, the second transmitted light adjusting means 66 and the second control unit 18B constitute a radiation light control mechanism of the second light irradiation unit 65.

In the third solar cell test light irradiation device, the first transmitted light adjusting means 62 is provided so as to close the light emission port 22A of the lamp housing 22, and the second transmitted light adjusting device is provided. The means 66 is provided so as to block the light emission port 27A of the lamp casing 27.
As shown in FIGS. 9 and 10, the first transmitted light adjusting means 62 is provided with a plurality of circular openings 63 </ b> A, for example, provided so as to block the light emission ports 22 </ b> A of the lamp housing 22. (Hereinafter also referred to as “fixed aperture plate”) 63 and, for example, a circular aperture 64A provided on the fixed aperture plate 63 so as to be slidable in a one-dimensional direction (the left-right direction in FIGS. 9 and 10). A plurality of aperture plates (hereinafter also referred to as “moving aperture plates”) 64 and aperture plate driving means (not shown) for slidingly driving the movable aperture plates 64. The plate driving means is connected to the main control unit 19 via the first control unit 18A.
In the illustrated example, the movable aperture plate 64 has an outer diameter slightly smaller than that of the fixed aperture plate 63 so that the movable aperture plate 64 can slide on the fixed aperture plate 63.

In the fixed aperture plate 63 constituting the first transmitted light adjusting means 62, the plurality of apertures 63 </ b> A are arranged in a grid pattern on the entire surface of the fixed aperture plate 63.
The moving aperture plate 64 can adjust all the aperture ratios of the plurality of apertures 63A in the fixed aperture plate 63. Specifically, as shown in FIG. 10A, the plurality of openings 63A in the fixed opening plate 63 can be uniformly opened (not closed) as a whole, and FIG. As shown in FIG. 10B and FIG. 10C, the plurality of openings 63A in the fixed opening plate 63 can be uniformly closed.
In the example of this figure, the plurality of openings 64A of the moving opening plate 64 have the same inner diameter (opening diameter) as the openings 63A of the fixed opening plate 63, and the same pitch as the pitch of the openings 63A. The moving aperture plate 64 is arranged in a grid pattern on the entire surface.
In FIG. 10B and FIG. 10C, the moving direction of the moving aperture plate 64 for shifting to the state shown in FIG. 10A is indicated by an arrow.

The second transmitted light adjusting means 66 has the same configuration as the first transmitted light adjusting means 62, and closes the light emission port 27A of the lamp casing 27 as shown in FIGS. An aperture plate (hereinafter also referred to as “fixed aperture plate”) 67 having a plurality of circular apertures 67A, for example, and a one-dimensional direction (right and left in FIGS. 9 and 10) on the fixed aperture plate 67. For example, a plurality of circular openings 68 </ b> A (hereinafter also referred to as “moving opening plates”) 68, and an opening plate for slidingly driving the moving opening plate 68. The aperture plate driving means is connected to the main control section 19 via the second control section 18B.
In the illustrated example, the moving aperture plate 68 has an outer diameter slightly smaller than that of the fixed aperture plate 67 so that it can slide on the fixed aperture plate 67.

In the fixed aperture plate 67 constituting the second transmitted light adjusting means 66, the plurality of apertures 67 </ b> A are arranged in a grid pattern on the entire surface of the fixed aperture plate 67.
Further, the moving aperture plate 68 can adjust all the aperture ratios of the plurality of apertures 67 </ b> A in the fixed aperture plate 67. Specifically, as shown in FIG. 10A, the plurality of openings 67A in the fixed opening plate 67 can be uniformly opened as a whole (not closed), and FIG. As shown in FIG. 10B and FIG. 10C, the plurality of openings 67A in the fixed opening plate 67 can be uniformly closed.
In the example of this figure, the plurality of openings 68A of the moving aperture plate 68 have the same outer diameter as the apertures 67A of the fixed aperture plate 67, and the moving aperture plate has the same pitch as the pitch of the openings 67A. 68 are arranged in a grid pattern on the entire surface.
In FIG. 10B and FIG. 10C, the moving direction of the moving aperture plate 68 for shifting to the state shown in FIG. 10A is indicated by an arrow.

In the third solar cell test light irradiation apparatus having such a configuration, the first light irradiation unit 61 is provided on the front side of the work W, and the second light is provided on the back side of the work W. An irradiation unit 65 is provided, and the first light irradiation unit 61 and the second light irradiation unit 65 include two types of ultraviolet rays in which the first ultraviolet light source and the second ultraviolet light source have different spectral radiation distributions. The first control unit 18A and the second control unit are constituted by the lamp A and the ultraviolet lamp B, and the first transmitted light adjusting unit 62 and the second transmitted light adjusting unit 66 are provided. The first light irradiation unit 61 is turned on by lighting one selected from the lamp A group and the lamp B group in each of the first ultraviolet light source and the second ultraviolet light source by 18B. Preliminary spectral radiation distribution of the light emitted from the second light-emitting unit 65, i.e. the spectral irradiance distribution at the surface and the back surface of the workpiece W can be adjusted individually.
Further, in the first light irradiation unit 61 and the second light irradiation unit 65, the moving aperture plates 64 and 68 are slid by the aperture plate driving means by the first control unit 18A and the second control unit 18B, respectively. By driving, and thereby adjusting the aperture ratio in the first transmitted light adjusting means 62 and the first transmitted light adjusting means 66, the radiation intensity of the light emitted to the front and back surfaces of the workpiece W, that is, Irradiance on the front and back surfaces of the workpiece W can be individually adjusted.
In the third solar cell test light irradiation device, in each of the first light irradiation unit 61 and the second light irradiation unit 65, the spectral radiation distribution of the emitted light is the lamp A group and the lamp B group. Therefore, the number of ultraviolet lamps A to be lit and the number of ultraviolet lamps B to be lit are controlled, and the amount of electric power supplied to the ultraviolet lamp A and the ultraviolet lamp B is controlled. The radiant intensity of the light emitted to the front and back surfaces is not adjusted.

According to the 3rd solar cell test light irradiation apparatus, light can be irradiated also to the back surface of the solar cell module as the workpiece | work W similarly to the 1st solar cell test light irradiation apparatus 10, Moreover, the front and back surfaces of the solar cell module can be irradiated with light having different radiation intensity and spectral radiation distribution, respectively, and the temperature condition and humidity condition of the front surface side space S1 and the back surface side space S2 are different. Therefore, in solar cell module life acceleration tests, whatever test conditions are required depending on the type and location of the solar cell module, the test according to the required test conditions Since the environment can be formed, the test can be performed under the test conditions according to the practical use conditions, and thus the acceleration is increased according to the practical use conditions. It is possible.
Further, according to the third solar cell test light irradiation device, the surface of the panel made of the solar cell module can be irradiated with light having any desired spectral radiation distribution. The lifetime acceleration test can be performed on both the crystalline solar cell module and the thin film solar cell module having different irradiation conditions (spectral irradiance distribution conditions).

Using this third solar cell test light irradiation device, a life acceleration test corresponding to a situation in which a crystalline solar cell module is installed on a gantry having a certain height in a desert area (sandy ground) is performed. A specific example of the operation of the third solar cell test light irradiation device in the case of performing is shown.
A specific example of a table of test conditions stored in advance in the main control unit 19 of the third solar cell test light irradiation device is shown in Table 1.
Table 1 is an example qualitatively showing the table, and actually each condition is numerically stored.

In Table 1, “A1” is a condition conforming to the Japanese Industrial Standard (JIS) for spectral radiation distribution for crystalline solar cell modules, and “B1” is the spectral radiation distribution for thin film solar cell modules. This is a condition based on Japanese Industrial Standards (JIS). In addition, “a1” to “a4” are based on the condition “A1”, considering the ground of the installation place of the crystalline solar cell module (installation surface of the mount), and the ground of the installation location (installation surface of the mount) In addition, “b1” to “b4” are determined based on the ground (mounting surface of the mount) of the thin-film solar cell module in consideration of the ground (mounting surface of the mount). ).
In the table shown in Table 1, the spectral radiation distribution on the surface side of the solar cell module as the work W (the spectral radiation distribution of light including ultraviolet rays emitted from the first light irradiation unit 61) is It depends on the type and is constant regardless of where the solar cell module is installed. That is, when the solar cell module as the workpiece W is a crystalline solar cell module, the spectral radiation distribution condition on the surface side of the solar cell module is stored as “A1”, while the solar cell module is a thin film system. In the case of a solar cell module, the spectral radiation distribution condition on the surface side of the solar cell module is stored as “B1”.
On the other hand, the spectral radiation distribution on the back side of the workpiece W (the spectral radiation distribution of light including ultraviolet rays emitted from the second light irradiation unit 65) depends on the installation location of the solar cell module. For example, when the ground (installation surface) of the solar cell module is a concrete surface and the type of the solar cell module as the workpiece W is a crystalline solar cell module, the back side of the solar cell module Is stored as “a1”, but the ground (installation surface of the gantry) of the installation location is sandy ground, and the type of the solar cell module as the workpiece W is a crystalline solar cell module. In this case, the spectral radiation distribution condition on the back side of the solar cell module is stored as “a2”.

(1) The condition that “a crystalline solar cell is installed in a desert area” is input to the main control unit 19 by the test operator.

(2) The main control unit 19 reads data corresponding to the test condition “install a crystalline solar cell in a desert area” from a pre-stored table, and the first control unit 18A and the second control A drive command is issued to each of the sections 18B.
Specifically, for the first control unit 18A, the spectral radiation distribution of light including ultraviolet rays irradiated on the surface of the workpiece W is “A1”, and the irradiance of light including ultraviolet rays on the surface side of the workpiece W Is “high”, and a drive command is issued to set the temperature in the surface side space of the chamber 11 to “high” and the humidity to “low”.
On the other hand, for the second control unit 18B, the spectral radiation distribution of light including ultraviolet rays irradiated on the surface of the workpiece W is “a2”, and the irradiance of light including ultraviolet rays on the surface side of the workpiece W is “medium. ”, A drive command is issued to set the temperature in the rear surface side space S2 of the chamber 11 to“ high ”and the humidity to“ low ”.

(3) First, the first control unit 18A and the second control unit 18B adjust the atmosphere of the front surface side space S1 and the rear surface side space S2 of the chamber.
Specifically, the first control unit 18 </ b> A drives the first blowing unit 31 to blow air so that the first circulating air flows in the first circulation air passage 30 and the surface side space S <b> 1 of the chamber 11. I do.
Thereafter, the measurement result of the temperature of the first circulating air flowing through the first circulating air passage 30 and the surface-side space S1 of the chamber 11 is received from the first temperature monitor 35, and the humidity of the first circulating air is measured. The measurement result is received from the first humidity monitor 36.
Then, based on the received temperature and humidity measurement results, the first circulating wind cooling / dehumidifying means 32, the first circulating wind heating means 33, and the first circulating wind humidifying means 34 are feedback-controlled to control the surface of the chamber 11 The temperature is adjusted so that the temperature of the side space S1 is “high” and the humidity is “low”.
On the other hand, the second control unit 18 </ b> B drives the second air blowing means 41 to blow air so that the second circulating air circulates in the second circulation air passage 40 and the back surface side space S <b> 2 of the chamber 11.
Thereafter, the measurement result of the temperature of the second circulating air flowing through the second circulating air passage 40 and the back surface side space S2 of the chamber 11 is received from the second temperature monitor 45, and the humidity of the second circulating air is measured. The measurement result is received from the second humidity monitor 46.
Then, based on the received temperature and humidity measurement results, the second circulating wind cooling / dehumidifying means 42, the second circulating wind heating means 43, and the second circulating wind humidifying means 44 are feedback-controlled, and the back surface of the chamber 11 is controlled. The temperature is adjusted so that the temperature of the side space S2 is “high” and the humidity is “low”.

(4) Next, the first control unit 18 </ b> A and the second control unit 18 </ b> B are configured to detect the spectral radiation distribution of light including ultraviolet rays applied to the workpiece W, and the light irradiation surfaces on the front and back sides of the workpiece W. Adjust the irradiance.
Specifically, the first control unit 18A instructs the first power supply unit 24 so that the spectral radiation distribution of light including ultraviolet rays applied to the surface of the workpiece W becomes “A1”, and the workpiece W The first transmitted light adjusting means 62 is controlled so that the irradiance of the light including ultraviolet rays on the light irradiation surface on the surface side of the light becomes “high”, and the moving aperture plate of the first transmitted light adjusting means 62 is controlled. 64 position is adjusted.
On the other hand, the second control unit 18B instructs the second power supply unit 29 so that the spectral radiation distribution of light including ultraviolet rays irradiated on the back surface of the work W becomes “a2”, and the back side of the work W The position of the moving aperture plate 68 of the second transmitted light adjusting means 66 is controlled by controlling the second transmitted light adjusting means 66 so that the irradiance of the light including the ultraviolet rays on the light irradiation surface becomes “medium”. Adjust.

(5) The first power supply unit 24 and the second power supply unit 29 control the lighting of the ultraviolet lamps 21 and 26.
Specifically, the first power supply unit 24 includes the first lamp A group 21A and the first lamp so that the spectral radiation distribution of light including ultraviolet rays applied to the surface of the workpiece W becomes “A1”. The lighting control of the B group 21B is performed.
On the other hand, the second power supply unit 29 has the second lamp A group and the second lamp B group 21B so that the spectral radiation distribution of the light including ultraviolet rays applied to the back surface of the workpiece W becomes “a2”. Perform lighting control.

[Fourth Embodiment]
FIG. 11 is an explanatory view showing a main part of still another example of the solar cell test light irradiation apparatus of the present invention, together with a panel made of solar cell modules to be tested.
A solar cell test light irradiation device (hereinafter also referred to as “fourth solar cell test light irradiation device”) according to the fourth embodiment is held in the chamber 11 as a first light irradiation unit 71. The first transmitted light adjusting means 72 is provided between the workpiece W and the workpiece W to be operated, and a plurality of ultraviolet lamps 21 constituting the first ultraviolet light source are arranged on the same plane. Further, as the second light irradiation unit 75, a second transmitted light adjusting means 76 positioned between the workpiece W held in the chamber 11 is provided, and a plurality of components constituting the second ultraviolet light source are provided. And the function that the first control unit 18A and the second control unit 18B control the number of the ultraviolet lamps 21 and 26 to be lit, and the ultraviolet ray. Lamps 21, 26 7 except that it does not have a function of controlling the amount of power supplied but has a function of controlling the operations of the first transmitted light adjusting means 72 and the second transmitted light adjusting means 76. It has the same configuration as the second solar cell test light irradiation device.
In the fourth solar cell test light irradiation device, the first wavelength selection filter 52, the first transmitted light adjusting means 72, and the first control unit 18A emit radiation control mechanism of the first light irradiation unit 71. Further, the second wavelength selection filter 55, the second transmitted light adjusting means 76, and the second control unit 18B constitute a radiation light control mechanism of the second light irradiation unit 75.

In the fourth solar cell test light irradiation device, the first transmitted light adjusting means 72 and the second transmitted light adjusting means 76 are provided on the surfaces of the first wavelength selective filter 52 and the second wavelength selective filter 55 (see FIG. 9 is provided on the surface on the workpiece W side in FIG.
In the first transmitted light adjusting means 72, the fixed aperture plate 81 and the movable aperture plates 82 and 83 are other than those in which a plurality of strip-shaped apertures extending in the lamp central axis direction of the ultraviolet lamp 21 are formed in parallel. Has the same configuration as the first transmitted light adjusting means 62 constituting the third solar cell test light irradiation apparatus according to FIGS. 9 and 10.
In the second transmitted light adjusting means 76, the fixed aperture plate 84 and the movable aperture plates 85 and 86 are formed in parallel with a plurality of strip-shaped apertures extending in the lamp central axis direction of the ultraviolet lamp 26. Except this, it has the same configuration as the second transmitted light adjusting means 66 that constitutes the third solar cell test light irradiation apparatus according to FIGS.

  As the first transmitted light adjusting means 72, for example, as shown in FIG. 12, the fixed aperture plate 81 and the movable aperture plate 82 are both configured to have rectangular apertures 81A and 82A, and as shown in FIG. A fixed aperture plate 81 having a rectangular opening 81A, and a moving aperture plate having an opening 83A having a substantially rectangular shape and one of the two long sides of the opening edge (right side in FIG. 13) being serrated. The thing of the structure which consists of 83 is mentioned.

Here, in the fixed aperture plate 81 of FIGS. 12 and 13, the plurality of openings 81A are all opposed to the ultraviolet lamp 21 constituting the first ultraviolet light source, that is, all of the plurality of openings 81A are ultraviolet rays. It arrange | positions in parallel so that it may be located in the area | region corresponding to the lamp | ramp 21. FIG. Specifically, each of the plurality of openings 81A has a short side slightly larger than the outer diameter of the ultraviolet lamp 21 constituting the first ultraviolet light source and a long side slightly larger than the entire length of the ultraviolet lamp 21. Are arranged at the same pitch as the pitch of the ultraviolet lamps 21.
In addition, the moving aperture plate 82 in FIG. 12 can adjust all the aperture ratios of the plurality of apertures 81 </ b> A in the fixed aperture plate 81. Specifically, as shown in FIG. 12A, the plurality of openings 81A in the fixed opening plate 81 can be uniformly opened (not blocked) as a whole, and FIG. As shown in FIG. 12B and FIG. 12C, the plurality of openings 81A in the fixed opening plate 81 can be uniformly closed.
In the example of FIG. 12, the plurality of openings 82A of the moving opening plate 82 have the same inner diameter (opening diameter) as the openings 81A of the fixed opening plate 81, and have the same pitch as the pitch of the openings 81A. Has been placed.
In FIG. 12B and FIG. 12C, a plurality of openings 81A in the fixed opening plate 81 shown in FIG. 12A are uniformly opened (blocked). The direction of movement of the moving aperture plate 82 for transitioning from the state (not in the state) to the state in which the plurality of openings 81A are uniformly closed is indicated by arrows.
Further, the moving aperture plate 83 of FIG. 13 has a long side of one side (right side in FIG. 13) of the plurality of openings 83A having a serrated shape, and a serrated side of the plurality of openings 83A of the moving aperture plate 83. Except that one of the two parallel edges (left in the example of FIG. 13) is serrated, it has the same configuration as the moving aperture plate 82 shown in FIG. 12, and FIG. As shown in FIG. 13B and FIG. 13C, the plurality of openings 81A in the fixed opening plate 81 can be uniformly opened as a whole (not closed). As described above, the plurality of openings 81A in the fixed opening plate 81 can be uniformly closed.
In FIG. 13B and FIG. 13C, a plurality of openings 81A in the fixed opening plate 81 shown in FIG. 13A are uniformly opened (blocked). The direction of movement of the moving aperture plate 83 for transitioning from the state (not in the state) to the state in which the plurality of openings 81A are uniformly closed is indicated by arrows.

  Further, the second transmitted light adjusting means 76 has the same configuration as that of the first transmitted light adjusting means 72. For example, as shown in FIG. A structure having rectangular openings 84A and 85A, a fixed opening plate 84 having a rectangular opening 84A as shown in FIG. 13, and one of two long sides of the substantially rectangular shape at the opening edge. Examples include a configuration including a moving aperture plate 86 having an aperture 86A having a sawtooth shape (right side in FIG. 13).

Here, in the fixed opening plate 84 of FIGS. 12 and 13, the plurality of openings 84A are all opposed to the ultraviolet lamp 26 constituting the second ultraviolet light source, that is, all of the plurality of openings 84A are ultraviolet rays. They are arranged in parallel so as to be located in a region corresponding to the lamp 26. Specifically, each of the plurality of openings 84A has a short side that is slightly larger than the outer diameter of the ultraviolet lamp 26 that constitutes the second ultraviolet light source, and a long side that is slightly larger than the entire length of the ultraviolet lamp 26. Are arranged at the same pitch as the pitch of the ultraviolet lamps 26.
Moreover, the moving aperture plate 85 of FIG. 12 can adjust all the aperture ratios of the plurality of apertures 84 </ b> A in the fixed aperture plate 84. Specifically, as shown in FIG. 12A, the plurality of openings 84A in the fixed opening plate 84 can be uniformly opened as a whole (not closed), and FIG. As shown in FIG. 12B and FIG. 12C, the plurality of openings 84A in the fixed opening plate 84 can be uniformly closed.
In the example of FIG. 12, the plurality of openings 85A of the movable opening plate 85 have the same inner diameter (opening diameter) as the openings 84A of the fixed opening plate 84, and have the same pitch as the pitch of the openings 84A. Has been placed.
In FIG. 12B and FIG. 12C, a plurality of openings 81A in the fixed opening plate 81 shown in FIG. 12A are uniformly opened (blocked). The direction of movement of the moving aperture plate 85 for transitioning from a state in which the plurality of apertures 81 </ b> A are uniformly closed to each other is indicated by arrows.
Further, the moving aperture plate 86 of FIG. 13 has a long side of one side (right side in FIG. 13) of the plurality of apertures 86 </ b> A having a serrated shape, Except that one of the two parallel edges (left in the example of FIG. 13) is serrated, it has the same configuration as the moving aperture plate 85 according to FIG. 12, and FIG. As shown in FIG. 13B, the plurality of openings 84A in the fixed opening plate 84 can be uniformly opened as a whole (not closed), and are shown in FIGS. 13B and 13C. As described above, the plurality of openings 84A in the fixed opening plate 84 can be uniformly closed.
In FIG. 13B and FIG. 13C, a plurality of openings 81A in the fixed opening plate 81 shown in FIG. 13A are uniformly opened (blocked). The direction of movement of the moving aperture plate 85 for transitioning from a state in which the plurality of apertures 81 </ b> A are uniformly closed to each other is indicated by arrows.

In the 4th solar cell test light irradiation apparatus of such a structure, the 1st light irradiation unit 71 is provided in the surface side of the workpiece | work W, and 2nd light is provided in the back surface side of the workpiece | work W. An irradiation unit 75 is provided, and the first light irradiation unit 71 and the second light irradiation unit 75 are provided so that the first wavelength selection filter 52 and the second wavelength selection filter 55 can be exchanged. In addition, since the first transmitted light adjustment means 72 and the second transmitted light adjustment means 76 are provided, the first wavelength selection filter 52 and the second wavelength selection filter 55 have appropriate wavelength selection characteristics. By using one, the spectral radiation distribution of the light emitted from the first light irradiation unit 71 and the second light radiation unit 75, that is, on the front and back surfaces of the workpiece W The kick spectral irradiance distribution can be adjusted individually.
Moreover, in the 1st light irradiation unit 71 and the 2nd light irradiation unit 75, the moving aperture plates 82 and 85 (83, 86) are made into aperture plates by the 1st control part 18A and the 2nd control part 18B, respectively. Light radiated to the front and back surfaces of the workpiece W by adjusting the aperture ratio in the first transmitted light adjusting means 72 and the second transmitted light adjusting means 76 by sliding driving by the driving means. , That is, the irradiance on the front and back surfaces of the workpiece W can be individually adjusted.

According to the 4th solar cell test light irradiation apparatus, light can be irradiated also to the back surface of the solar cell module as the workpiece | work W similarly to the 1st solar cell test light irradiation apparatus 10, Moreover, the front and back surfaces of the solar cell module can be irradiated with light having different radiation intensity and spectral radiation distribution, respectively, and the temperature condition and humidity condition of the front surface side space S1 and the back surface side space S2 are different. Therefore, in solar cell module life acceleration tests, whatever test conditions are required depending on the type and location of the solar cell module, the test according to the required test conditions Since the environment can be formed, the test can be performed under the test conditions according to the practical use conditions, and thus the acceleration is increased according to the practical use conditions. It is possible.
Furthermore, according to the 4th solar cell test light irradiation apparatus, the surface of the panel which consists of a solar cell module can be irradiated with the light which has arbitrary desired spectral radiation distribution, Therefore The ultraviolet-ray in a lifetime test The lifetime acceleration test can be performed on both the crystalline solar cell module and the thin film solar cell module having different irradiation conditions (spectral irradiance distribution conditions).

  Moreover, in the 4th solar cell test light irradiation apparatus, in the 1st transmitted light adjustment means 72 and the 2nd transmitted light adjustment means 76, a thing as a structure as shown in FIG. That is, by using an opening having a configuration in which one of the two long sides at the opening edge is serrated, the irradiance distribution on the workpiece W can be made more uniform.

In the solar cell test light irradiation apparatus of this invention, it is not limited to said embodiment, A various change can be added.
For example, in the first solar cell test light irradiation device and the third solar cell test light irradiation device, two kinds of ultraviolet lamps A and ultraviolet lamps constituting the first light irradiation unit and the second light irradiation unit. In the plurality of ultraviolet lamps made of B, the ultraviolet lamps A and the ultraviolet lamps B may be alternately arranged in parallel on the same plane.
Further, in the first solar cell test light irradiation device and the third solar cell test light irradiation device, two kinds of ultraviolet lamps A and ultraviolet lamps constituting the first light irradiation unit and the second light irradiation unit. B may have a spectral radiation distribution other than the spectral radiation distribution shown in FIG.

DESCRIPTION OF SYMBOLS 10 Solar cell test light irradiation apparatus 11 Chamber 11A Perimeter wall part 12 Work support part 13 Work placement convex part 14 Fixing plate member 16A First introduction opening 16B First discharge opening 17A Second introduction opening 17B Second introduction opening 18A First control unit 18B Second control unit
19 main control unit 20 first light irradiation unit 21 ultraviolet lamp 21A first lamp A group 21B first lamp B group 22 lamp housing 22A light emission port 22B bottom 24 first power supply unit 25 second light Radiation unit 26 Ultraviolet lamp 26A Second lamp A group 26B Second lamp B group 27 Lamp housing 27A Light emission port 27B Bottom 29 Second power source 30 Surface side circulation air path (first circulation air path)
31 1st ventilation means 32 1st circulation wind cooling dehumidification means 33 1st circulation wind heating means 34 1st circulation wind humidification means 35 1st temperature monitor 36 1st humidity monitor 40 Back surface side circulation air path ( Second circulation air passage)
41 2nd ventilation means 42 2nd circulation wind cooling dehumidification means 43 2nd circulation wind heating means 44 2nd circulation wind humidification means 45 2nd temperature monitor 46 2nd humidity monitor 51 1st light irradiation unit 52 First wavelength selection filter 54 Second light irradiation unit 55 Second wavelength selection filter 61 First light irradiation unit 62 First transmitted light adjusting means 63 Aperture plate (fixed aperture plate)
63A Opening 64 Opening plate (moving aperture plate)
64A Opening 65 Second light irradiation unit 66 Second transmitted light adjusting means 67 Opening plate (fixed opening plate)
67A Opening 68 Opening plate (moving aperture plate)
68A Aperture 71 First light irradiation unit 72 First transmitted light adjustment means 75 Second light irradiation unit 76 Second transmitted light adjustment means 81 Aperture plate (fixed aperture plate)
81A Opening 82 Opening plate (moving aperture plate)
82A Opening 83 Opening plate (moving opening plate)
83A Opening 84 Opening plate (fixed opening plate)
84A Opening 85 Opening plate (moving opening plate)
85A Opening 86 Opening plate (moving aperture plate)
86A Opening 100 Crystalline solar cell module 101 Solar cell 102 Semiconductor layer 103 Antireflection film 104A, 104B Electrode
105 Interconnector material 107 Sealing portion 108 Translucent plate 109 Protective sheet 112 Frame 113 Sealing material 120 Thin film solar cell module 121 Solar cell unit 122 Semiconductor layer 123 Translucent substrate 124A Transparent electrode 124B Back surface electrode 127 Sealing portion 129 Protective sheet 132 Frame 133 Sealing material 141 Light irradiation unit 142 Ultraviolet lamp 143 Lamp housing 143A Light emission port 145 Chamber 145A Opening 145B Peripheral wall portion 147 Reflector S1 Surface side space S2 Back side space W Workpiece

Claims (11)

A chamber holding a panel of solar cell modules to be tested inside;
A first light irradiation unit comprising a first ultraviolet light source composed of a plurality of ultraviolet lamps, and irradiating the surface of the panel with light containing ultraviolet light from the first ultraviolet light source;
A second light irradiation unit comprising a second ultraviolet light source composed of a plurality of ultraviolet lamps, and irradiating the back surface of the panel with light containing ultraviolet light from the second ultraviolet light source;
A radiation control mechanism of the first light irradiation unit;
A radiation light control mechanism of the second light irradiation unit,
For solar cell testing, characterized in that a spectral radiation distribution of light emitted from the second light irradiation unit can be adjusted by a radiation light control mechanism of the second light irradiation unit Light irradiation device. The second ultraviolet light source in the second light irradiation unit comprises a plurality of ultraviolet lamps A and a plurality of ultraviolet lamps B having a spectral radiation distribution different from that of the ultraviolet lamp A,
The radiation light control mechanism of the second light irradiation unit turns on the light selected from the plurality of the ultraviolet lamps A and the plurality of the ultraviolet lamps B, so that the light emitted from the second light irradiation unit is emitted. The solar cell test light irradiation device according to claim 1, having a function of adjusting a spectral radiation distribution.   The radiation light control mechanism of the second light irradiation unit is a wavelength selection filter that transmits light of a specific wavelength out of light from a second ultraviolet light source that is replaceably provided in the second light irradiation unit. The spectral radiation distribution of light emitted from the second light emitting unit is adjusted by using a filter having a specific wavelength selectivity as the wavelength selective filter. The light irradiation apparatus for solar cell testing of 1.   The radiation light control mechanism of the second light irradiation unit has a function of adjusting the irradiance on the back surface of the panel by controlling at least one of the number of ultraviolet lamps to be lit and the amount of electric power supplied to the ultraviolet lamps. The solar cell test light irradiation device according to any one of claims 1 to 3, wherein:   The radiated light control mechanism of the second light irradiation unit has transmitted light adjusting means for adjusting the irradiance on the back surface of the panel, which is located between the second light irradiation unit and the held panel. The solar cell test light irradiation device according to any one of claims 1 to 3, wherein the light irradiation device is for solar cell testing. The internal space of the chamber is divided into a front side space and a back side space that are independent from each other by the panel in a state where the panel is held,
The chamber is provided with a back-side circulation air passage forming member that forms a back-side circulation air passage that communicates with the back-side space. The back-side circulation air passage includes a blower, a circulating air cooling and dehumidifying device, and a circulation. The solar cell test light irradiation device according to any one of claims 1 to 5, wherein a wind heating unit and a circulating wind humidification unit are provided.   At least one of the air blowing means, the circulating air cooling / dehumidifying means, the circulating air heating means, and the circulating air humidifying means is configured to be controlled by a control mechanism so as to operate under selected conditions. Item 7. A solar cell test light irradiation device according to Item 6.   The spectral radiation distribution of the light radiated | emitted from the said 1st light irradiation unit can be adjusted with the radiated light control mechanism of a said 1st light irradiation unit, The structure characterized by the above-mentioned. The solar cell test light irradiation apparatus according to claim 7.   9. The solar cell test light irradiation apparatus according to claim 8, wherein the radiation light control mechanism of the first light irradiation unit has a function of adjusting irradiance on the panel surface.   The chamber is provided with a surface-side circulation air passage forming member that forms a surface-side circulation air passage that communicates with the surface-side space. The surface-side circulation air passage includes air blowing means, circulating air cooling and dehumidifying means, The solar cell test light irradiation device according to claim 6, wherein a circulating wind heating unit and a circulating wind humidifying unit are provided.   11. A test environment condition setting unit, wherein in the test environment condition setting unit, at least a spectral radiation distribution of light emitted from the second light irradiation unit is set. Or a solar cell test light irradiation device according to any one of the above.