Abstract: A battery pack, instead of size AA batteries, is loaded in a battery storage compartment of an electronic device. The battery pack includes a battery casing, a plurality of size AAA batteries, a battery holder, a circuit board, and an induction coil electromagnetically connected to a primary coil of a battery charger cradle. The size AAA batteries are accommodated in the battery casing in a spaced-apart manner where a distance between longitudinal axes of the size AAA batteries is larger than a distance between longitudinal axes of the size AA batteries loaded in the battery storage compartment, and a storage space is defined between the adjacent size AAA batteries. With an electronic component, mounted on the circuit board, being disposed in the storage space, the battery pack accommodates the size AAA batteries, the battery holder, the circuit board, and the induction coil in a mutually layered state in the battery casing.

Abstract: The casing 2 has a planar bottom plate 22, a top plate 21 disposed opposite and separated from the bottom plate 22, and perimeter walls 23 that establish an enclosed storage space 25. The internal battery 1, the receiving coil 5, and the circuit board 4 are disposed in the storage space 25. The internal battery 1 is circular cylindrical batteries 1A disposed parallel to the bottom plate 22 along the inside surfaces of perimeter side-walls 23A. The receiving coil 5 is a planar coil disposed on the inside surface of the bottom plate 22 at the bottom of the storage space 25. The circuit board 4 is disposed inside the top plate 21 separated from the receiving coil 5, and a heat dissipating region 26 is established in the space surrounded by the circuit board 4, the receiving coil 5, and the internal battery 1.

Abstract: A pocketable body warmer includes: a metallic exterior casing with a metal plate being formed in the shape of a tube having a closed bottom end and an open opposite end; and a plastic interior casing with an outer contour being formed to be inserted in the metallic exterior casing. The interior casing is provided with a battery storage portion and a battery is loaded in the battery storage portion. Also, a heater is thermally connected to the metallic exterior casing for heating the metallic exterior casing.

Abstract: The portable light is provided with an outer case 1, batteries 4 that can be charged and are housed inside the outer case 1, a solar panel 2 that charges the batteries 4, and a light source 3 illuminated by power from the batteries 4. The outer case 1 is provided with a flat-panel section 5 that contains the solar panel 2 and light source 3; and a battery compartment 6 that is thicker than the flat-panel section 5, is established protruding outward from the bottom edge of a flat-panel section 5 surface, and has a bottom standing surface 7 that enables the flat-panel section 5 to stand upright on its own.

Abstract: The battery charger is provided with a holding cavity 2 that allows a first rectangular battery pack 30 and a second rectangular battery pack 40 to be loaded in a detachable fashion. The holding cavity has a rectangular opening and has first charging terminals 5A to contact first rectangular battery pack electrode terminals 32, and second charging terminals 5B to contact second rectangular battery pack 40 electrode terminals 42 established on a first perimeter wall 4A and second perimeter wall 4B, which are perpendicular. The battery charger charges the first rectangular battery pack through the first charging terminals when it is loaded in the holding cavity with electrode terminals 32 in contact with the first charging terminals. The battery charger charges the second rectangular battery pack through the second charging terminals when it is loaded in the holding cavity with electrode terminals in contact with the second charging terminals.

Abstract: Mobile electronic equipment incorporating an induction coil and a battery; and a battery charger cradle for recharging the battery in the mobile electronic equipment. Regarding the charger cradle, a bottom surface of a mounting portion is curved in a U-grooved shape, and a primary coil is incorporated inside the U-grooved bottom surface, with the primary coil being connected to a power source. Regarding the mobile equipment, its rear surface placed on the mounting portion of the charger cradle is curved to match with the U-grooved bottom surface, and the induction coil is incorporated inside the curved rear surface. When the mobile equipment is placed on the mounting portion of the charger cradle, the electric power is carried from the primary coil to the induction coil which are electromagnetically coupled with each other, and the battery in the mobile equipment is recharged by the electric power induced to the induction coil.

Abstract: The battery charger is provided with a holding cavity 2 that allows a first rectangular battery pack 30 and a second rectangular battery pack 40 to be loaded in a detachable fashion. The holding cavity has a rectangular opening and has first charging terminals 5A to contact first rectangular battery pack electrode terminals 32, and second charging terminals 5B to contact second rectangular battery pack 40 electrode terminals 42 established on a first perimeter wall 4A and second perimeter wall 4B, which are perpendicular. The battery charger charges the first rectangular battery pack through the first charging terminals when it is loaded in the holding cavity with electrode terminals 32 in contact with the first charging terminals. The battery charger charges the second rectangular battery pack through the second charging terminals when it is loaded in the holding cavity with electrode terminals in contact with the second charging terminals.

Abstract: A battery charger 100 that charges a battery 40 is provided with a power supply circuit 12 to supply power to charge the battery, a control section 13 to control the power supply circuit 12, and an output terminal 19 connected to the input-side of the power supply circuit 12 via an input switch 18. When the battery 40 becomes fully-charged, the control section 13 controls the power supply circuit 12 OFF and the input switch ON to output the input power from the output terminal 19.

Abstract: An electrical device includes a device body and a conversion plug. An AC plug is connected to an outlet with the conversion plug being detached. The conversion plug is connected to an outlet with a different shape with the conversion plug being connected to the AC plug. The AC plug includes an insulating pivot mount that has a pair of plug blades and is connected to the device body. The insulating pivot mount of the AC plug is provided with a retaining recessed portion that opens on the surface side of the device body. The conversion plug includes a retaining hook that is retained to the retaining recessed portion disposed in the insulating pivot mount of the AC plug. The conversion plug is connected to the device body via the AC plug in a state where the retaining hook is retained to the retaining recessed portion, and the plug blades are inserted into plug insertion portions.

Abstract: Mobile electronic equipment incorporating an induction coil and a battery; and a battery charger cradle for recharging the battery in the mobile electronic equipment. Regarding the charger cradle, a bottom surface of a mounting portion is curved in a U-grooved shape, and a primary coil is incorporated inside the U-grooved bottom surface, with the primary coil being connected to a power source. Regarding the mobile equipment, its rear surface placed on the mounting portion of the charger cradle is curved to match with the U-grooved bottom surface, and the induction coil is incorporated inside the curved rear surface. When the mobile equipment is placed on the mounting portion of the charger cradle, the electric power is carried from the primary coil to the induction coil which are electromagnetically coupled with each other, and the battery in the mobile equipment is recharged by the electric power induced to the induction coil.

Abstract: The battery pack instead of the size AA battery is loaded in a battery storage of an electronic device. The battery pack includes a battery casing, a plurality of size AAA batteries, a battery holder, a circuit board, and an induction coil electromagnetically connected to a primary coil of a battery charger cradle. The size AAA batteries are accommodated in the battery casing in a spaced-apart manner where a distance between longitudinal axes of the size AAA batteries is larger than a distance between longitudinal axes of the size AA batteries loaded in the battery storage, and a storage space is defined between the adjacent size AAA batteries. With an electronic component, mounted on the circuit board, being disposed in the storage space, the battery pack accommodates the size AAA batteries, the battery holder, the circuit board, and the induction coil in a mutually layered state in the battery casing.

Abstract: The pocketable body warmer includes: a metallic exterior casing with a metal plate being formed to a tube having a closed bottom end and an open opposite end; a plastic-made interior casing with an outer contour being formed to be inserted in the metallic exterior casing, the interior casing being provided with a battery storage portion; a battery loaded in the interior casing; and a heater thermally connected to the metallic exterior casing for heating the metallic exterior casing.

Abstract: A battery charger includes a temperature detection portion that comes in contact with a battery detachably mounted in a battery pocket and detects its battery temperature, and a charge circuit that controls charge of the battery based on the battery temperature detected by the temperature detection portion. The temperature detection portion includes a heat conduction plate and a temperature sensor. The heat conduction plate includes a pair of upper and lower sandwich plates that sandwich the temperature sensor, and an elastic connection arm that connects the upper and lower sandwich plates at a first end side, and an interlock portion that couples the upper and lower sandwich plates at a second end side opposite to the first end side. The elastic connection arm connects first ends of the upper and lower sandwich plates, and the interlock portion couples second ends of the upper and lower sandwich plates. Thus, the upper and lower sandwich plates sandwich and fasten the temperature sensor.

Abstract: In a hand warmer, a heat dissipating plate is thermally coupled to a heater that is supplied with current by a battery that is accommodated in a case. The battery is a box-shaped rechargeable battery of a box-shaped rechargeable lithium-ion battery or lithium-polymer battery that has flat surfaces opposed to each other. The heater is a heating element that is opposed to the flat surface of the battery. A shielding plate is arranged between the heating element and the flat surface of the battery. The heat dissipating plate that is thermally coupled to the heating element is secured to the case on the surface side of the case. In the hand warmer, the flat surface of the box-shaped rechargeable battery, the shielding plate and the heat dissipating plate are arranged in a stack structure. The heat dissipating plate is heated by the heating element.

Abstract: The battery charger is provided with temperature detection sections 12 to contact and detect the temperature of AA batteries 2A and AAA batteries 2B loaded in a battery pocket 3, and a charging circuit to detect battery temperature and control battery 2 charging. The battery charger is provided with AA battery 2A holders 11, which are circular openings 13 in the case 1, and AAA battery 2B holders 11, which are flexible arches 14. An AAA battery 2B is inserted into a flexible arch 14 and retained in a fixed position in the battery pocket 3. An AA battery 2A is not inserted into a flexible arch 14, but rather moves the flexible arch 14 causing it to incline, and is inserted into a circular opening 13 for retention in a fixed position in the battery pocket 3. The battery charger charges batteries 2 set in fixed positions in the battery pocket 3 while detecting battery 2 temperature via the temperature detection sections 12.

Abstract: An electrical device includes a device body and a conversion plug. An AC plug is connected to an outlet with the conversion plug being detached. The conversion plug is connected to an outlet with a different shape with the conversion plug being connected to the AC plug. The AC plug includes an insulating pivot mount that has a pair of plug blades and is connected to the device body. The insulating pivot mount of the AC plug is provided with a retaining recessed portion that opens on the surface side of the device body. The conversion plug includes a retaining hook that is retained to the retaining recessed portion disposed in the insulating pivot mount of the AC plug. The conversion plug is connected to the device body via the AC plug in a state where the retaining hook is retained to the retaining recessed portion, and the plug blades are inserted into plug insertion portions.

Abstract: The battery charger is provided with temperature detection sections 12 to contact and detect the temperature of AA batteries 2A and AAA batteries 2B loaded in a battery pocket 3, and a charging circuit to detect battery temperature and control battery 2 charging. The battery charger is provided with AA battery 2A holders 11, which are circular openings 13 in the case 1, and AAA battery 2B holders 11, which are flexible arches 14. An AAA battery 2B is inserted into a flexible arch 14 and retained in a fixed position in the battery pocket 3. An AA battery 2A is not inserted into a flexible arch 14, but rather moves the flexible arch 14 causing it to incline, and is inserted into a circular opening 13 for retention in a fixed position in the battery pocket 3. The battery charger charges batteries 2 set in fixed positions in the battery pocket 3 while detecting battery 2 temperature via the temperature detection sections 12.

Abstract: A charger comprises a temperature detection portion that comes in contact with a battery detachably mounted to a battery pocket and detects its battery temperature, and a charge circuit that controls charge of the battery based on the battery temperature detected by the temperature detection portion. The temperature detection portion includes a heat conduction plate and a temperature sensor. The heat conduction plate includes a pair of upper and lower sandwich plates that sandwich the temperature sensor, and an elastic connection arm that connects the upper and lower sandwich plates at a first end side, and an interlock portion that couples the upper and lower sandwich plates at a second end side opposite to the first end side. The elastic connection arm connects first ends of the upper and lower sandwich plates, and the interlock portion couples second ends of the upper and lower sandwich plates, thus, the upper and lower sandwich plates sandwich and fasten the temperature sensor.

Abstract: The battery charger has a case provided with a battery pocket in which batteries can be loaded and unloaded. The battery charger is provided with temperature sensors which detect the temperature of batteries in the battery pocket, and with a charging circuit which detects battery temperature via the temperature sensors and controls charging current. Further, the battery charger is provided with thermal conducting units which press against the surfaces of batteries loaded in the battery pocket, and with spring structures which resiliently press the thermal conducting units against the surfaces of the batteries. Thermal conducting units are provided with thermal conducting plates and temperature sensors.