JP3184555U - Solar simulator and heat dissipation unit used therefor - Google Patents

Abstract

A solar simulator that prevents a temperature rise of an anode electrode part and has a good heat dissipation effect and a heat dissipation unit used for the solar simulator are provided.
A flow guide pipe defines a flow passage, and a first housing is configured to define a first space that surrounds an anode electrode portion. The diversion pipe 31 includes an intake port 311 provided on the first air blower 32 side, an exhaust port 312 provided on the first housing 33 side in communication with the intake port 311 via the flow passage 310. In the first housing 33, an inlet 331 provided near the exhaust port 312 and an outlet 332 provided away from the inlet 331 are formed, and the diameter of the exhaust port 312 is the entrance. It is below the aperture of 331.
[Selection] Figure 2

Description

  The present invention relates to a solar simulator that generates pseudo-sunlight close to natural sunlight and irradiates the solar cell, for example, and a heat dissipation unit used therefor in order to measure the characteristics of the solar cell.

  Solar cells convert sunlight directly into electrical energy and do not require the burning of oil, so demand is growing as clean energy, and a wide range of fields such as large-scale power generation facilities and small electronic devices Is used. A solar simulator that artificially generates simulated sunlight is used for performance evaluation of the solar cell.

  In Patent Document 1, as shown in FIG. 4, a lamp 92 is mounted as a light source in a casing-shaped lamp house 91 that defines an installation space 910, and a fan 93 is attached to one end of the lamp house 91. A lamp unit 9 having an exhaust port 911 which is a vent at the other end is disclosed as a solar simulator. When the fan 93 is rotated, air outside the lamp house 91 is sucked from the fan 93 and exhausted from the exhaust port 911. As a result, the inside of the lamp house 91 is ventilated, and the elongate bulb 921 provided in the lamp 92 hits the wind to cool it down.

European Patent Application No. 0636865

  In the lamp unit 9 as described above, by providing the fan 93, it is possible to efficiently prevent the temperature rise of the spherical portion formed in the center of the bulb 921. However, on the other hand, the anode electrode portion 922 provided at one end of the bulb 921 also has a problem that the service life of the lamp 92 is shortened due to oxidation and melting due to the temperature rise. This is effective for suppressing the extreme temperature rise of the spherical portion of the material, but is not very effective for suppressing the temperature rise of the anode electrode portion 922, and there is a problem that the anode electrode portion 922 breaks due to overheating.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a solar simulator having a good heat dissipation effect and a heat dissipation unit used therefor, which prevents an increase in temperature of the anode electrode portion.

  In order to achieve the above object, according to one aspect, the present invention is a light source unit provided with a light source having an anode electrode portion and a cathode electrode portion, and operates to send air from the outside to the light source unit side. A first air blower provided to flow, a flow guide pipe defining a flow passage through which air sent by the first air blower flows, and a housing defining a space surrounding the anode electrode portion The flow guide pipe has an intake port provided on the first air blower side, and an exhaust port provided on the housing side in communication with the intake port through the flow passage. The body includes an inlet provided near the exhaust port so that air flowing out from the exhaust port through the flow guide pipe is taken into the space, and the air so as to exhaust the air in the space to the outside. From the entrance Is an outlet which is provided are formed, the diameter of the exhaust port provide a solar simulator, characterized in that it comprises a and a heat-dissipating unit is a diameter below the entrance.

  According to another aspect, the present invention is a heat dissipating unit used in a light source having an anode electrode portion, and is a first unit provided to operate to send air from the outside to the light source side. A blower device, a flow guide pipe that defines a flow passage through which air sent by the first blower device flows, and a housing that defines a space surrounding the anode electrode portion, A suction port provided on the first air blower side, and an exhaust port provided on the housing side in communication with the suction port via the flow passage. An inlet provided near the exhaust port so that air flowing out from the exhaust port through the diversion pipe is taken into the space, and away from the entrance so as to discharge the air in the space to the outside Provided outlet, and formed The diameter of the exhaust port also provides a heat radiation unit which is characterized in that less than or equal to the entrance aperture.

  External air is sent into the housing by the first blower, and a large amount of air is sent to the flow guide pipe through the intake port. A large amount of the air taken in can be discharged to the housing side through the exhaust pipe through the flow guide pipe. Therefore, a large amount of air can be taken into the housing, and the temperature of the anode electrode part can be lowered efficiently. Further, when the diameter of the exhaust port is equal to or smaller than the diameter of the entrance, the air flow can be concentrated. Therefore, since the flow rate of air in the flow passage that is sent into the housing through the exhaust port can be increased, the temperature of the anode electrode portion can be lowered extremely efficiently.

1 is a conceptual diagram of a solar simulator according to an embodiment of the present invention. It is explanatory drawing of schematic structure of a housing and a thermal radiation unit. It is explanatory drawing of schematic structure of the solar simulator by the other Example of this invention. It is explanatory drawing of schematic structure of an example of the conventional lamp unit.

  Hereinafter, embodiments of the present invention will be described.

Example 1
FIG. 1 shows a configuration of a solar simulator according to a first embodiment of the present invention. As shown in FIG. 1, the solar simulator includes a housing 1, a light source unit 2 (see FIG. 2), and a heat dissipation unit 3.

  As shown in FIG. 2, the housing 1 has an enclosure wall 11 that defines an installation space 13 for installing the light source unit 2, and is fixed to the enclosure wall 11. The light source unit 2 is attached to the housing 1. And a mounting wall 14.

  The enclosure wall 11 includes a light extraction portion 113 that allows light to pass through, an intake port 111 that is provided so as to communicate with the installation space 13 so as to take in air, and a blowout port 112 through which air in the installation space 13 vigorously exits, The inlet 111 and the outlet 112 are provided so as to face each other with respect to the light extraction portion 113.

  In this example, the light extraction unit 113 is an opening formed so as to allow light from the light source unit 2 to pass therethrough and guide it out. However, as long as the light extraction unit 113 can extract light out of the housing 1. It is not limited to this, The plate body which consists of translucent materials, such as glass, may be sufficient. Further, this solar simulator does not necessarily require the housing 1 to be provided.

  The light source unit 2 is disposed in the installation space 13 via the mounting wall 14, and a reflecting mirror 21 using, for example, a parabolic mirror so as to irradiate the light extraction unit 113, A light source 22 disposed nearby.

  The reflecting mirror 21 includes a curved reflecting surface portion 211 that defines a reflecting space 210 that emits light incident from the light source 22, and the light incident from the light source 22 is reflected from the reflecting surface portion 211 to the light extraction portion 113. The first opening 212 provided on one end side of the reflecting surface portion 211 near the light extraction portion 113 so as to be emitted toward the light emitting portion 113 and the first space 212 away from the light extraction portion 113 of the reflection surface portion 211 with the reflection space 210 therebetween. A second opening 213 provided on the opposite side of the opening 212, and the first opening 212 is configured such that its diameter is larger than that of the second opening 213.

  The light source 22 is, for example, an arc discharge lamp that uses, for example, a xenon lamp that can obtain light having a spectrum very similar to solar radiation, and is elongated substantially horizontally to the optical axis (not shown) of the reflecting mirror 21. The anode electrode portion 222 is provided at one end in the longitudinal direction so as to protrude outward from the first opening 212, and the cathode electrode portion 223 is disposed at the other end outside the second opening 213. The spherical part 221 is formed as a light emitting member between the anode electrode part 222 and the cathode electrode part 223 and is provided near the focal point of the reflecting mirror 21. When a high voltage is applied, the light source 22 emits light by arc discharge at the spherical portion 221.

  The heat dissipating unit 3 is provided with a first air blower 32 provided to operate to send air from the outside, and a second air blower 112 provided to operate to exhaust the air in the housing 1. It has the air blower 34 and the 3rd air blower 35 provided in the intake 111 so that it might operate | move in order to send air in the housing 1. FIG. Further, the heat radiating unit 3 is connected to the first air blower 32 so as to introduce the air sent by the first air blower 32 into the housing 1 and is extended into the housing 1 through the intake 111. The first casing 33 that defines the first pipe 330, the first space 330 that surrounds the anode electrode part 222, and the second space 370 that surrounds a part of the cathode electrode part 223. A housing 37 is provided.

  The flow guide pipe 31 is a tubular body made of, for example, an electrically insulating material and defining a flow passage 310, and includes an intake port 311 on the first blower 32 side and an exhaust port 312 in the housing 1. In addition, although the flow guide pipe 31 is provided so that at least one part may protrude from the housing 1 via the inlet 111, it is needless to say that it is not limited to this.

  In the first casing 33, an inlet provided as a ventilation hole facing the exhaust port 312 of the flow guide pipe 31 so that air flowing out from the exhaust port 312 through the flow guide pipe 31 is taken into the first space 330. 331 and an outlet 332 provided away from the inlet 331 so as to discharge the air in the first space 330 to the installation space 13 are formed.

  In this example, the diameter of the exhaust port 312 is equal to or smaller than the diameter of the inlet 331, and the distance D3 between the first casing 33 and the flow guide pipe 31 is preferably 2 mm to 20 mm. And it is preferable that the flow guide pipe 31 is comprised so that the air flow rate may be 1 L / min or more. In this example, the exhaust port 312 of the flow guide pipe 31 is provided so as to face the outside of the inlet 331, but it is needless to say that the present invention is not limited to this. For example, when a part of the flow guide pipe 31 is provided extending in the first housing 33, the heat dissipation effect of the anode electrode portion 222 is further improved.

  Although not shown, the first casing 33 can further suppress the temperature rise of the anode electrode portion 222 when a plurality of ventilation holes communicating with the first space 330 and the installation space 13 are further provided.

  The second casing 37 is provided with ventilation holes 371, 371,... Communicating with the second space 370 and the installation space 13. Thereby, the temperature rise of the cathode electrode part 223 can be further suppressed.

  A filter unit 36 that filters air outside the installation space 13 is provided outside the housing 1. The first blower 32 is provided between the filter unit 36 and the flow guide pipe 31. The air sucked by the first blower 32 is filtered by the filter unit 36 and sent to the flow guide pipe 31 through the air inlet 311. In this example, the first blower 32 has one air blower 321, the first blower pipe 322 formed by connecting the filtration device 36 and the air blower 321, the air blower 321, and the flow guide. A second blower pipe 323 formed by connecting the pipes 31 to each other.

  As an example, the second blower 34 and the third blower 35 are fan devices. All of the first to third blowers 32, 34, and 35 and the filter unit 36 are well known in the art, and need not be described in detail in this specification.

  The operation and action of the solar simulator configured as described above will be described below.

  When the solar simulator is operated, external air is sent into the housing 1 through the intake port 111 by the third air blower 35, and air in the housing 1 is sent out from the air outlet 112 by the second air blower 34. Ventilation is performed in the housing 1 and the temperature rise of the light source 22 can be suppressed.

  In addition, when the air blower 321 is operated in the first blower 32, the air in which dust or the like is filtered by the filtration device 36 is sucked through the first blower pipe 322 and the second blower pipe 323 adjacent to the air blower 321. Air is blown into the flow guide tube 31 from the port 311. Then, air is sent from the exhaust port 312 to the first housing 33 through the inlet 331, and heat conversion is performed at the anode electrode part 222 to lower its temperature. Next, the air whose temperature has risen flows out from the outlet 332 through the housing 1 to the outside.

  Since the diameter of the exhaust port 312 is equal to or smaller than the diameter of the inlet 331, the air flow can be concentrated. Accordingly, the flow rate of the air in the flow passage 310 sent to the first space 330 in the first housing 33 via the exhaust port 312 and the inlet 331 can be increased, so that the temperature of the anode electrode part 222 can be lowered very efficiently. Can be made. According to experiments, the temperature of the conventional anode electrode part is 316 ° C., but the temperature of the anode electrode part 222 according to the present invention is 214 ° C. In other words, since the flow guide pipe 31 can concentrate toward the anode electrode part 222 and send the airflow vigorously, the temperature of the anode electrode part 222 can be lowered at least 100 ° C. efficiently and effectively.

  According to the solar simulator according to the present invention, the temperature of the entire light source 22 can be lowered by flowing air into the housing 1 by the second blower 34 and the third blower 35, and by the diversion pipe 31. Since air from the first blower 32 flows in a concentrated manner, the anode electrode part 222 of the light source 22 can be efficiently cooled. Therefore, the solar simulator according to the present invention has an excellent heat dissipation effect, can solve the problem that the anode electrode part 222 is damaged due to overheating and cannot be used, and extends the service life of the light source 22. Can do.

(Example 2)
FIG. 3 shows a schematic configuration of a solar simulator according to the second embodiment of the present invention. Since the configuration is basically the same as that of the solar simulator of FIG. 1, the description of the overlapping parts is omitted here.

  The heat radiating unit 3 is provided in the blower port 112 so as to operate to exhaust the air in the housing 1 and the first air blower 32 provided in the intake port 111 so as to operate to send air from outside. A second air blower 34, a flow guide pipe 31 attached to the installation space 13 without protruding from the housing 1, and a first housing 33 provided so as to surround the anode electrode portion 222. And a second housing 37 provided so as to surround a part of the cathode electrode portion 223. In addition, the 1st air blower 32 and the 2nd air blower 34 are fan apparatuses.

  The flow guide pipe 31 is provided in the vicinity of the first air blower 32 connected to the straight portion 313 and the straight portion 313 that defines the flow passage 310 in the vicinity of the first housing 33. A trumpet-shaped taper portion 314 that increases in diameter toward the air blower 32, the straight portion 313 has an exhaust port 312 on the first housing 33 side, and the taper portion 314 is a first air blower. An air inlet 311 on the device 32 side is provided.

  The first casing 33 and the second casing 37 are provided with ventilation holes as in the above embodiment.

  The operation and action of the solar simulator configured as described above will be described below.

  When the solar simulator is operated, external air is sent into the housing 1 through the intake port 111 by the first blower 32, and a lot of air is sent into the tapered portion 314 through the intake port 311. Since a large amount of air can be taken in and sent to the straight portion 313 by the trumpet-shaped tapered portion 314, a large amount of the taken-in air passes through the straight portion 313 through the exhaust port 312 to the first housing 33 side. Can be discharged. Therefore, a large amount of air can be taken into the first housing 33, and the temperature of the anode electrode part 222 can be efficiently lowered.

  As described above, the same effect as in the first embodiment can be obtained.

  As described above, several embodiments of the present invention have been described with reference to the drawings. However, the present invention is not limited to the illustrated embodiments. Various modifications can be made to the illustrated embodiment within the same range as the present invention or within an equivalent range.

  The present invention is useful for a solar simulator that effectively cools down the temperature.

DESCRIPTION OF SYMBOLS 1 Housing 11 Enclosure wall 111 Intake port 112 Outlet port 113 Light extraction part 13 Installation space 14 Mounting wall 2 Light source unit 21 Reflector 210 Reflection space 211 Reflection surface part 212 First opening 213 Second opening 22 Light source 221 Spherical part 222 Anode Electrode unit 223 Cathode electrode unit 3 Heat dissipation unit 31 Flow guide pipe 310 Flow passage 311 Inlet port 312 Exhaust port 313 Straight portion 314 Tapered portion 32 First blower 321 Air blower 322 First blower pipe 323 Second blower pipe 33 First housing 330 First space 331 Entrance 332 Outlet 34 Second blower 35 Third blower 36 Filter unit 37 Second housing 370 Second space 371 Ventilation hole

Claims (9)

A light source unit provided with a light source having an anode electrode portion and a cathode electrode portion;
A first air blower provided to operate to send air from the outside to the light source unit side, a flow guide pipe defining a flow passage through which the air sent by the first air blower flows, and the anode A housing that defines a space surrounding the electrode portion, and the flow guide pipe communicates with the intake port provided on the first air blower side and the intake port via the flow passage. An exhaust port provided on the housing side, and the housing is provided near the exhaust port so that air flowing out from the exhaust port through the flow guide pipe is taken into the space. And an outlet provided away from the entrance so as to discharge the air in the space to the outside, and a heat radiating unit in which the diameter of the exhaust port is equal to or less than the diameter of the entrance,
Solar simulator characterized by having. And a housing to which the light source unit and the heat dissipation unit are attached.
The housing defines an installation space for mounting the light source unit and the heat dissipation unit, and an intake port communicating with the installation space so as to take in air outside the housing, and air in the installation space A discharge outlet, and an enclosure wall provided with
The light source unit is disposed in the installation space so as to emit light,
2. The solar simulator according to claim 1, wherein the heat dissipation unit further includes a second blower provided in the outlet so as to operate to exhaust air in the housing. The flow guide pipe is attached in the installation space, a part of which is provided protruding from the installation space through the intake port,
The heat dissipating unit further includes a third air blower provided at the intake so as to operate to send air into the installation space, and an outside of the housing so as to filter air outside the installation space. A filter unit provided,
The first air blower is provided between the filter unit and the diversion pipe so as to send air filtered by the filter unit to the flow passage through the intake port. Item 3. A solar simulator according to item 2. The first blower is provided at the intake so as to operate to send air from outside the housing;
The flow guide pipe is attached in the installation space, and is provided in the vicinity of the first air blower connected to the straight portion and the straight portion defining the flow passage in the vicinity of the housing. A trumpet-shaped tapered portion that increases in diameter toward the first blower, the straight portion has an exhaust port provided on the housing side, and the tapered portion is the first blower. The solar simulator according to claim 2, further comprising an air inlet provided on the device side. The housing has a mounting wall for mounting the light source unit in the installation space,
The enclosure wall is further provided with a light extraction portion that allows light from the light source to pass through.
The light source unit further includes a parabolic reflecting mirror that reflects light from the light source and irradiates the light extraction portion, and a focal point of the reflecting mirror between the anode electrode portion and the cathode electrode portion. A light emitting member provided,
The reflecting mirror includes a curved reflecting surface portion that defines a reflecting space for reflecting light incident from the light source, and the light incident from the light source is reflected from the reflecting surface portion toward the light extraction portion. A first opening provided on one end side of the reflection surface portion near the light extraction portion so as to be emitted; and the first opening apart from the light extraction portion of the reflection surface portion with the reflection space interposed therebetween. The solar simulator according to claim 2, further comprising a second opening provided on the opposite side. A heat dissipation unit used in a light source having an anode electrode part,
A first air blower provided to operate to send air from the outside to the light source side;
A flow guide pipe defining a flow passage through which air sent by the first blower flows;
A housing that defines a space surrounding the anode electrode portion,
The flow guide pipe has an intake port provided on the first air blower side, and an exhaust port provided on the housing side in communication with the intake port via the flow passage,
The housing has an inlet provided near the exhaust port so that air flowing out from the exhaust port through the flow guide pipe is taken into the space, and exhausts the air in the space to the outside. And an outlet provided away from the entrance,
The diameter of the exhaust port is equal to or less than the diameter of the entrance. The light source is configured to be mounted within a housing defining an installation space;
The housing has an intake port provided to communicate with the installation space so as to take in external air, and a blow-out port through which the air in the installation space is discharged to the outside,
The diversion pipe is attached to the installation space;
The outlet is provided to discharge air from the housing to the installation space,
The heat radiating unit according to claim 6, further comprising a second air blower provided at the outlet so as to operate to exhaust air in the housing. The flow guide pipe is attached in the installation space, a part of which is provided protruding from the installation space through the intake port,
The heat dissipating unit further includes a third air blower provided at the intake so as to operate to send air into the installation space, and an outside of the housing so as to filter air outside the installation space. A filter unit provided,
The first air blower is provided between the filter unit and the diversion pipe so as to operate to send air filtered by the filter unit to the flow passage through the intake port. The heat dissipation unit according to claim 7, wherein The first blower is provided at the intake so as to operate to send air from outside the housing;
The flow guide pipe is attached in the installation space, and is provided in the vicinity of the first air blower connected to the straight portion and the straight portion defining the flow passage in the vicinity of the housing. A trumpet-shaped tapered portion that increases in diameter as it approaches the first blower,
The straight portion has an exhaust port provided on the housing side,
The heat dissipation unit according to claim 7, wherein the tapered portion has an intake port provided on the first blower side.

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