Abstract: A fuse element of a SCP is reliably fusion-cut with a simple circuit configuration to interrupt an electric current. In a power supply equipped with a battery unit, a control circuit (7) is configured to control turning on and off of a switch (6) configured to connect the SCP (3) which is connected in series to a battery unit (1) and is configured to interrupt charge and discharge currents in an abnormal state. Battery unit 1 includes battery cells (2) connected in series to one another. The SCP (3) includes fuse element 4 connected in series to an output end of the battery unit (1), and a heater (5) configured to fusion-cut the fuse element (4). The switch (6) includes switching elements (10) each of which has one terminal connected to the heater (5) and another terminal connected to a corresponding one of different-voltage terminals (11) of the battery unit 1.

Abstract: An electrostatic actuator includes a fixed electrode and a movable electrode arranged to face the fixed electrode. The movable electrode is configured to be displaceable with respect to the fixed electrode and a fixed portion. An attractive force acts between the movable electrode and the fixed portion. In the electrostatic actuator, a non-linear vibration of the movable electrode when a voltage is applied to the fixed electrode and the movable electrode is reduced by the attractive force acting between the movable electrode and the fixed portion.

Abstract: A mounting structure includes a micro vibrator and a mounting substrate. The micro vibrator includes a curved surface portion having an annular curved surface and a connecting portion extending from the curved surface portion toward an inner center position of the curved surface portion. The micro vibrator is disposed so that the connecting portion is bonded to the mounting substrate and the curved surface portion is in a hollow state free from other elements. The mounting substrate includes a plurality of electrode portions that are arranged to face and surround a rim of the curved surface portion of the micro vibrator, and spaced apart from each other, the rim being an end of the curved surface portion opposite to the connecting portion. Further, the mounting substrate includes a guard electrode.

Abstract: In a mounting structure, a micro vibrator has: a curved surface portion having a hemispherical curved surface; a connecting portion extending from the curved surface portion toward a center of a hemispherical shape of the curved surface portion; and a surface electrode covering at least a part of the connecting portion and at least a part of the curved surface portion. A mounting substrate has two or more wirings and a part of the micro vibrator is connected to the mounting substrate. The wirings each have an electrode connection portion connected to a portion of the surface electrode covering the connecting portion at an end. The two or more wirings include a voltage application wiring and a voltage detection wiring. The voltage application wiring is spaced away from the voltage detection wiring on the mounting substrate.

Abstract: A micro vibration body includes a curved surface portion, a recessed portion recessed from the curved surface portion, a bottom surface protruding portion protruding from a bottom surface of the recessed portion, and a through hole in the bottom surface protruding portion. A mounting substrate has a positioning recess, into which the bottom surface protruding portion is inserted, and electrode portions surrounding the inner frame portion. A joining member is in the positioning recess and joins the bottom surface protruding portion with the mounting substrate. The bottom surface is in contact with a region of the mounting substrate around the positioning recess. The bottom surface protruding portion has a tip end surface that is at a distance from the positioning recess. The joining member at least partially enters the through hole and is electrically connected to the conductive layer.

Abstract: A hydraulic excavator is provided which makes it possible to allow an operator to surely recognize an alarm that notifies the operator of non-wearing of a seatbelt even when a work is performed in a situation in which a moving object is present around the machine. A controller outputs, when a moving object is detected and wearing of a seatbelt is detected by a seatbelt detection device, a first alarm through a notification device, outputs, when the moving object is not detected and non-wearing of the seatbelt is detected by the seatbelt detection device, a second alarm through the notification device, and outputs, when the moving object is detected and non-wearing of the seatbelt is detected by the seatbelt detection device, the second alarm preferentially over the first alarm through the notification device.

Abstract: A molding device may comprise a mold, a plate, and a ring. The mold may comprise: a lower surface; an upper surface parallel to the lower surface; a hole defined in a part of the upper surface; and a through hole extending from a bottom surface of the hole to the lower surface of the mold. The plate may comprise a surface with a gas outlet defined therein. The ring may be arranged between the lower surface of the mold and the surface of the plate and connecting the mold and the plate. The ring may surround the through hole exposed on the lower surface of the mold and the gas outlet exposed on the surface of the plate. In a region where the ring is not arranged, a space may be defined between the lower surface of the mold and the surface of the plate.

Abstract: An inertial sensor includes a lower substrate and an upper substrate. The upper substrate includes a micro oscillator, electrodes and a pad, which are independent of each other. The micro oscillator includes a curved surface portion, a joint portion recessed inward from an apex of the curved surface portion and joined to a support portion of the lower substrate, a rim at an end of the curved surface portion and a conductive film covering the micro oscillator. The curved surface portion is in an aerial state. The rim is made of the same material as the electrodes, located on a virtual flat plane formed by the electrodes, and apart from and surrounded by the electrodes. A portion of the conductive film that covers the joint portion is electrically bonded to a lower metal film covering the support portion.

Abstract: In a method for manufacturing a micro vibration body having a three-dimensional curved surface, a mold defining a recess part is prepared, and a plate-shaped reflow material is arranged on the mold so as to cover the recess part. Pressure of a space defined by the recess part covered with the reflow material is reduced, and the reflow material is deformed by heating from an upper surface side opposite to a lower surface facing the recess part and by means of the pressure reduced. When the reflow material is deformed, a part of the mold is heated and / or cooled. As another example, when the reflow material is deformed, a mold having a different heat capacity portion is used to generate a temperature gradient in the mold.

Abstract: An inertial sensor includes a lower substrate and an upper substrate. The upper substrate includes a micro oscillator, electrodes and a pad, which are independent of each other. The micro oscillator includes a curved surface portion, a joint portion recessed inward from an apex of the curved surface portion and joined to a support portion of the lower substrate, a rim at an end of the curved surface portion and a conductive film covering the micro oscillator. The curved surface portion is in an aerial state. The rim is made of the same material as the electrodes, located on a virtual flat plane formed by the electrodes, and apart from and surrounded by the electrodes. A portion of the conductive film that covers the joint portion is electrically bonded to a lower metal film covering the support portion.

Abstract: An electronic device includes a mounting member having a surface, an electronic component, a solder and a sidefill. The electronic component has a plurality of electrodes on a surface and is mounted on the surface of the mounting member so that the surface of the electronic component having the electrodes faces the surface of the mounting member. The solder is disposed between the mounting member and at least one of the electrodes of the electronic component to electrically and mechanically connect between the at least one of the electrodes and the mounting member. The sidefill is disposed on a periphery of the solder and mechanically connects between the electronic component and the mounting member.

Abstract: An electronic device includes a component mounting portion, an electronic component disposed on the component mounting portion, a solder between the component mounting portion and the electronic component, a mounting base member, and a supporting beam connecting the component mounting portion and the mounting base member. The supporting beam has a plurality of bent portions. The supporting beam includes a frame, an outer supporting portion connecting the frame and the mounting base member, and an inner supporting portion connecting the frame and the component mounting portion. The inner supporting portion is shifted from the outer supporting portion along the frame. One of the plurality of bent portions is a connecting portion between the frame and the outer supporting portion. Another of the plurality of bent portions is a connecting portion between the frame and the inner supporting portion.

Abstract: A micro vibration body includes a curved surface portion, a recessed portion recessed from the curved surface portion, a bottom surface protruding portion protruding from a bottom surface of the recessed portion, and a through hole in the bottom surface protruding portion. A mounting substrate has a positioning recess, into which the bottom surface protruding portion is inserted, and electrode portions surrounding the inner frame portion. A joining member is in the positioning recess and joins the bottom surface protruding portion with the mounting substrate. The bottom surface is in contact with a region of the mounting substrate around the positioning recess. The bottom surface protruding portion has a tip end surface that is at a distance from the positioning recess. The joining member at least partially enters the through hole and is electrically connected to the conductive layer.

Abstract: An electronic device includes: a sensor mounting portion; an inertial force sensor unit detecting an inertial force, the inertial force sensor unit being mounted on the sensor mounting portion; a mounting base substrate arranged in a housing; and a support beam having multiple connection portions connecting with the sensor mounting portion and having multiple connection portions connecting with the mounting base substrate, the support beam includes an angular portion at which an extension direction of the support beam is angled. The mounting base substrate defines a substrate penetration portion that penetrates the mounting base substrate in a thickness direction of the mounting base substrate. The sensor mounting portion is arranged at an inner side of the substrate penetration portion of the mounting base substrate when viewed from the thickness direction of the mounting base substrate.

Abstract: A micro vibration body includes a curved surface portion, which has an annular curved surface, and a recessed portion, which is recessed from the curved surface portion. A mounting substrate includes an inner frame portion and electrode portions, which surround an inner frame portion. A joining member is provided in an inner region of the mounting substrate surrounded by the inner frame portion. The recessed portion of the micro vibration body has a bottom surface defining a mounted surface located in the inner region and joined to the mounting substrate via the joining member. The curved surface portion has a rim that includes an end portion of the curved surface portion on an opposite side to the recessed portion. The rim has a rim lower surface located on a same plane as the mounted surface or a tip end portion of the mounted surface.

Abstract: A hydraulic excavator is provided which makes it possible to allow an operator to surely recognize an alarm that notifies the operator of non-wearing of a seatbelt even when a work is performed in a situation in which a moving object is present around the machine. A controller outputs, when a moving object is detected and wearing of a seatbelt is detected by a seatbelt detection device, a first alarm through a notification device, outputs, when the moving object is not detected and non-wearing of the seatbelt is detected by the seatbelt detection device, a second alarm through the notification device, and outputs, when the moving object is detected and non-wearing of the seatbelt is detected by the seatbelt detection device, the second alarm preferentially over the first alarm through the notification device.

Abstract: An electrostatic actuator includes a fixed electrode and a movable electrode arranged to face the fixed electrode. The movable electrode is configured to be displaceable with respect to the fixed electrode and a fixed portion. An attractive force acts between the movable electrode and the fixed portion. In the electrostatic actuator, a non-linear vibration of the movable electrode when a voltage is applied to the fixed electrode and the movable electrode is reduced by the attractive force acting between the movable electrode and the fixed portion.