摘要:
After the highest voltage of a rechargeable battery becomes higher than 4.0 V, when the charging current keeps lower than 50 mA for 20 seconds, a first point is detected for stopping charging the battery. Also, after the highest voltage becomes higher than 4.0 V, the charged capacity value and the discharged capacity value are added and subtracted for integrating the charged/discharged capacity if the highest voltage keeps higher than the integration start voltage. When the integration result shows that the battery is charged totally after the highest voltage becomes higher than 4.0 V, and when the absolute value of the integration result becomes larger than 50% of the designed capacity of the battery, the point second is detected for stopping charging the battery.
摘要:
A vacuum degassing apparatus for molten glass is comprised of an uprising pipe, a vacuum degassing vessel, a downfalling pipe, an upstream side pit that supplies molten glass to the uprising pipe, and a downstream side pit that receives molten glass from the downfalling pipe. The vacuum degassing apparatus for molten glass is further comprised of a separating mechanism that separates a part of molten glass moving from the downfalling pipe to the downstream side pit, and a returning pipe that returns separated molten glass to the upstream side pit.
摘要:
A method controls a battery pack that includes a rechargeable battery, a control circuit that controls charge operation of the battery, and a charge control element that controls the charge current through the control circuit. In the method, even though the control circuit controls the charge control element so that the charge control element turns to OFF, in a case where the charge current is detected, the control circuit determines that abnormality occurs if detecting that the current flows at a rate not less than a first current value during a first detection period, and additionally determines that abnormality occurs if detecting a state the current flows at a rate less than the first current value for a second detection period longer than the first detection period.
摘要:
The battery pack updating method updates firmware stored in internal control circuit memory 24 via an update signal sent from a main device 1 that supplies power. When battery pack memory is updated, an AC adapter 3 is connected to the main device, and power is supplied to the main device from the AC adapter. The updating method transmits a charging and discharging blocking signal from the main device to the battery pack 2 control circuit 21 via a communication line 19. The charging and discharging blocking signal stops discharge from the battery pack 2 rechargeable battery 20, and stops charging of the rechargeable battery 20. With rechargeable battery 20 discharging and charging to and from the main device stopped by the charging and discharging blocking signal, the updating method transmits update data from the main device to the battery pack 2 control circuit 21 to update memory 24.
摘要:
A battery pack includes a switching element, a heat resistor, and a fuse. The switching element turns to ON if the battery pack becomes in an abnormal state. The heat resistor is connected to the switching element and a battery in series. Current flows through the heat resistor when the switching element turns to ON. The fuse is located in a position where the fuse is heated by the heat resistor through which the current flows. The fuse is connected to the battery in series so that the fuse is disconnected with heat by the heat resistor at high temperature. Thus, the fuse cuts off a current flow in the battery. If the battery pack is in an abnormal state, when the capacity or voltage of the battery is less than a preset capacity or voltage value, the fuse is disconnected with heat by turning the switching element to ON.
摘要:
Each mixing rotor for a batch mixer is rotatably insertable into a mixing chamber such that tip clearances are defined between tips of mixing blades and an inner surface of a mixing chamber and is provided on its outer circumferential surface with a plurality of mixing blades for imparting shearing forces to a material to be mixed by causing the material to pass through the tip clearances. The plurality of mixing blades include a nonlinear blade which is substantially nonlinear from a start point to a terminal point in a development of the mixing rotor developed into a plane about its longitudinal axis, and other linear blades which are linear in the development and whose helix angle to the longitudinal axis of the mixing rotor is set at 15 to 35°. An appropriate mixing control capable of realizing both sufficient mixing and sufficient dispersion can be executed by mixing and dispersing the material in a well-balanced manner by means of the mixing rotor.
摘要:
The present invention is a process for manufacturing an electronic circuit device by applying a solder material to electronic parts or electrodes on a printed circuit board; the process comprising the steps of removing an initial surface oxide film and an organic contaminant film from the surfaces of the solder material and electrode, covering the solder material and an area to which solder is to be applied which is comprised of the electrode, with a liquid vaporizing up after the bonding is completed in the step of heat-melting the solder material, to thereby prevent reoxidation of the joining area surface, and heat-melting the solder material, to carry out solder bonding without using any flux.
摘要:
There are provided a first navigation unit (transmitting side unit) 10 having a reader 13 for reading at least map data from a map information storage medium 14 and a controller 15 for controlling a system, and a second navigation unit (receiving side unit) 40 having a controller 41 connected to the control unit 15 through a serial communication line 30, buffer memories 42, 46 for storing therein image data from the reader 13, a display image memory 43 for extracting and copying the data in the range required for displaying from the map data developed on the buffer memories 42, 46, and a display controller 44 for displaying the image data on a display 45. The image data (transfer information) with an identification number of a detailed image concerning a rout selecting point approaching just before is stored in the buffer memory 46 with an enough time margin. At a determined display timing, display command information including the identification number is transmitted from the controller 15 to the controller 41 so that the display unit 45 displays the detailed image based on the image data.
摘要:
In soldering together two members such as electronic circuit devices, after an oxide or contaminated layer has been removed from the surface of a solder material or bonding pad, for example, the members are aligned in an oxidizing atmosphere. Then the solder material is heated in a nonoxidizing atmosphere to melt the solder and bond the members. Cleaning of the solder material or bonding pad is performed by sputter-cleaning, laser cleaning, mechanical polishing, or cutting.