KDDI launched models of mobile phone brand in 2009 summer “SOLAR PHONE SH002. Sharp is the main features of this phone is the first time in Japan back in the chassis is equipped with a solar toshiba PA3191U-3BRS battery module. In emergency situations such as battery margin is equal to zero, it can be used as an auxiliary power source. “Prosecution sun for about 10 minutes when the call lasts about 1 minute in standby could insist on approximately 2 hours (KDDI).
SH002 is also a charger, it also equipped with a reception at single band, FeliCa e-billing capabilities, the GPS receiver and Bluetooth transceiver functions such as high-end mobile phones in Japan, all features function of “full” model. And also has a resistance level IPX5/IPX7 water. Produced with the assistance of technical personnel has been dismantling.
Anti-noise solar battery module
First, look at the screen with a parts of the solar battery module. Sharp is equipped with solar A1008 battery module development. Dimension of about 67.5mm x 41.0mm x 0.8mm. To achieve the thickness of 0.8mm, using the technology of semiconductor packaging. “Whether domestic large-scale solar battery module thin. Tectonics completely different” (technical staff, a Japanese manufacturer of solar battery).
According to Sharp this conversion efficiency of solar battery modules is 13%, the maximum output power of 300mW Note 1). The output voltage of 4.5V, the voltage can be used for lithium-ion batteries. “10 The output voltage of 0.5 V solar battery polycrystalline silicon serial (the technical staff above). Module grounding has 9 dorsal electrode. Assisting in the dismantling of Japanese manufacturers of mobile phones and technical staff to speculate: “module of solar batteries may play a role in the antenna can easily generate electromagnetic noise. Thus, to take an anti-noise measurements. “
Shows part of the chassis is equipped with features of low power consumption of 1.1-inch monochrome e-paper. Solar battery module can display the feeding process with the performance when loading and free talk time. E-paper with a bright side to sensors, from the values obtained in the module’s electronic paper display in the use of solar BATCL50L batteries in the process of charging efficiency.
SH002 The main emphasis on two motherboards to PCB. RF circuits, digital circuits, signal processing, etc. Almost all major components encapsulated in the side of the motherboard. Vice-package-board, single module single band tuner and FeliCa with sending and receiving circuit. Components on the motherboard, such as RF circuits, power circuits and circuits for digital signal processing and so uniform. “It is very common in models of high-end Japanese components configured” (The Japanese manufacturers of mobile phones and technical staff).
The motherboard for mobile phone chips Qualcomm “MSM7500. It is the use of a high-pass and KDDI mobile phone to develop a common platform ‘KCP +’ standard chips, but also integrated into the GPS transceiver circuit. Sharp models from the summer of 2008 “W62SH” has begun to support KCP + terminals. Telephone main circuit follows the design of the original models, but their main efforts on the packaging of solar VGP-BPS2A battery modules.
Various methods of sealing the upper and lower casing
Equipped with solar battery modules, in addition, SH002 Another important feature is resistance to water IPX5/IPX7-level. The upper and lower waterproof case to achieve in different ways. Shows part of the chassis used is to use double sided tape on a frame with LCD panels and solar battery module sheet structure mask.
The keyboard side of the chassis used in both chassis and battery cases, respectively, between the folder structure in the filling of waterproof rubber for resistance to water. The side of the keyboard chassis material is fiberglass reinforced nylon resin off. In both upper and lower case are two ways of seeing “is also waterproof handheld products to achieve a very common approach” (The Japanese manufacturers of mobile phones and technical staff).
Improving the robustness of the measures is also equipped with rechargeable batteries can be seen. SH002 is equipped with lithium-ion rechargeable battery electrode is used in the shrink wrap on the motherboard to connect the terminal building. Japanese mobile phone rechargeable batteries typically radiate a flat electrode. The Sharp by changing the electrode structure so that when the phone slipped under circumstances such as poor contact of the battery has been defused. This electrode structure, Finnish Nokia and other handset manufacturers have adopted from abroad through the national mobile phone in Japan is also very rare “(technical staff above).