Patent application number | Description | Published |
20100038981 | ROTATING ELECTRIC MACHINE AND COOLING SYSTEM FOR THE ROTATING ELECTRIC MACHINE - Heat discharging property of the stator coil end is improved effectively in a rotating electric machine. A motor as the rotating electric machine includes a stator and a rotor. The stator includes a stator core and resin mold coil ends provided on both axial ends thereof. Column-shaped projections projecting in the axial direction are provided on axial side surfaces of resin mold coil ends at a plurality of positions. Cooling oil supplied from above the resin mold coil ends effectively cools the resin mold coil ends. | 02-18-2010 |
20100201212 | CONNECTION LINE USED FOR STATOR OF ELECTRIC MOTOR, STATOR INCLUDING THAT CONNECTION LINE, AND METHOD FOR BENDING THE CONNECTION LINE - A connection line has a first bent portion bent toward a coil's main body in a vicinity of a stator core's axial length limit line. Furthermore, the connection line at a portion closer to the coil's main body than the first bent portion has a second bent portion bent away from the coil's main body. Furthermore, the connection line has a third bent portion bent away from the coil's main body to have a connection portion along an end surface of the terminal member in contact therewith generally parallel thereto. | 08-12-2010 |
20100276135 | COOLING FIN AND MANUFACTURING METHOD OF THE COOLING FIN - A cooling fin includes fin parts integrally extending from a base part. Each fin part is partially formed at a slant so that a proximal end portion is straight and a distal end portion is wavy (corrugated). Each fin part is partially slanted to make each fin part wavier as coming closer to the distal end portion from the proximal end portion. In a manufacturing process of the cooling fin, firstly, a straight cooling fin is produced by extrusion molding (an extruding step). Subsequently, the distal end portion of each fin is partially bent in a direction intersecting an extruding direction into a wave shape (a bending step). | 11-04-2010 |
20110030217 | METHOD OF MANUFACTURING A HEAT EXCHANGER - A method of manufacturing a heat exchanger is disclosed. The heat exchanger comprises a plurality of fin members including a plurality of fins that is arranged in parallel and protrudes from a flat-plate base so that slit portions are formed on both side ends in a width direction of the base, the fin members being arranged so that respective bases abut on each other in a frame. Specifically, the method comprises: an extrusion molding operation of extrusion-molding a long fin member; a fin cutting operation of cutting the long fin member having just been extrusion-molded to cut the long fin member by a predetermined width; and a base cutting operation of cutting a long base in a long-fin cutting region made in the fin cutting operation so that slit portions are formed. | 02-10-2011 |
20110132591 | HEAT EXCHANGER AND METHOD OF MANUFACTURING SAME - Provided are a heat exchanger having a novel structure and efficiently cooling a heat generating body, and a method of manufacturing the heat exchanger. A heat exchanger has flow paths formed by being closed by an upper plate and a lower plate which have rectilinearly formed upstanding fins parallelly arranged at specific intervals, and gaps extend between adjacent fins in the top-bottom direction along the direction in which the fins extend. Either of or both the upper plate and the lower plate are provided with projections arranged in the longitudinal direction of the flow path and projecting inward of the flow path. | 06-09-2011 |
20120006523 | HEAT EXCHANGER AND METHOD OF MANUFACTURING THE SAME - A heat exchanger having a fin member which can be easily formed by extrusion molding and warps (bends) less and configured such that an occurrence of voids at a weld portion between the fin member and a frame is suppressed. A method of manufacturing the heat exchanger is also provided. A heat exchanger has, mounted inside a frame forming an outer frame, a fin member having fins for forming flow channels for a refrigerant. The fin member is an integrally formed fin member formed by extrusion molding and is provided with a base formed in a rectangular flat plate-like shape, front side fins projecting from the front side of the base, and back side fins projecting from the back side of the base. In the fin member, the front side and the back side are not welded to the frame but the front ends of at least either the front side fins or the back side fins are welded to the frame. | 01-12-2012 |
20120012295 | HEAT EXCHANGER AND METHOD OF MANUFACTURING THE SAME - A heat exchanger is provided with a cooling fin including a plurality of fin portions and a base portion supporting the fin portions, and a plurality of pins press-fitted into the fin portions. In the heat exchanger, the pins each having a wider width than each space between the fin portions formed in advance in parallel straight shapes are press-fitted into the spaces in a direction from a top end of each fin portion toward the base portion. Accordingly, the fin portions are formed into corrugated shapes by plastic deformation, thereby fixing the pins between the fin portions in positions apart from the base portion. In each space, the pins are arranged at intervals in a longitudinal direction of each space. The pins arranged in adjacent spaces are placed with a displacement in alternating pattern. | 01-19-2012 |
20120012996 | SEMICONDUCTOR DEVICE - Disclosed is a semiconductor device that can properly relax a stress produced by a difference in coefficient of linear expansion between an insulating substrate and a cooler and can properly remove heat by cooling of a semiconductor element. A semiconductor device comprises an insulating substrate, a semiconductor element provided on the insulating substrate, a cooler, and a porous metal plate provided between the insulating substrate and the cooler. Through holes in the porous metal plate are open at least to that surface of the porous metal plate which faces the cooler. The sectional size of the pores decreases gradually from the cooler side toward the insulating substrate side. | 01-19-2012 |
20120256512 | STATOR STRUCTURE FOR ROTARY ELECTRIC MACHINE AND METHOD FOR ASSEMBLING STATOR - A stator structure for a rotary electric machine includes a stator core having a cylindrical shape in which slots and pole pieces are formed on an inner peripheral side and alternately arranged in a circumferential direction, a conductor segment which is a conducting wire having a rectangular cross section inserted in one of the slots through an insulator being connected with a conductor segment similarly inserted in another slot to form a coil. Each insulator has a shape including a pair of opposite side surface portions connected with an intermediate portion along a wall surface defining the slot. Each insulator includes end protrusions facing each other at free ends of the side surface portions to position the conductor segments. The insulators are made of an insulating and elastic material. | 10-11-2012 |
20120280383 | SEMICONDUCTOR DEVICE AND METHOD OF PRODUCING SAME - A semiconductor device and a method of producing the same, wherein a joining member and a joined member are bonded by means of brazing in a way such that no voids are left inside the joining layer. The semiconductor device comprises a joined member and a joining member which is joined to the joined member by means of brazing. The joined member is provided with a through hole which is open on the joining surface with the joining member, and a path communicating with the through hole is provided on at least one of the joining surface of the joining member with the joined member or the joining surface of the member with the joining member. | 11-08-2012 |
20130068434 | HEAT EXCHANGER AND METHOD FOR MANUFACTURING SAME - In a heat exchanger, fins are simply and accurately positioned in place and heat is efficiently exchanged without increasing manufacture cost, and the plurality of corrugated plate-like fins are disposed in the flow direction of a coolant in a housing. The heat exchanger has: connecting parts, which connect together the adjacent fins among the fins; protrusions ormed on the connecting parts; and positioning holes for positioning the fins formed in the housing. The adjacent fins are disposed at predetermined intervals in the coolant flow direction with a predetermined offset amount in the direction that orthogonally intersects the coolant flow direction by fitting the protrusions in the positioning holes. | 03-21-2013 |
Patent application number | Description | Published |
20090096313 | STATOR FOR ROTATING ELECTRICAL MACHINE, PART TO BE USED FOR STATOR AND METHOD FOR MANUFACTURING STATOR FOR ROTATING ELECTRICAL MACHINE - A stator includes a stator core having a plurality of slots in a direction parallel to the rotating shaft of a rotating electrical machine; and a coil plate laminated body formed by laminating a plurality of I-shaped coil plates, each of which has an insulating film adhered at least on one side, in a diameter direction. In the coil plate laminated body, a plurality of coil plates are inserted inside a resin insulator inserted into the slots so that the insulating film is arranged between the coil plates, and the coil plates are integrally held by the resin insulator. The resin insulator integrally holds the coil plate laminated body of a plurality of phases in the same slot. | 04-16-2009 |
20090230807 | STATOR FOR ROTATING ELECTRIC MACHINE - A stator includes: a stator core having a plurality of slots in a direction parallel to a rotating shaft of a rotating electric machine; a plurality of coil plate laminated bodies formed in such a manner that a plurality of coil plates each having an insulating film attached to at least one side are laminated in a radial direction; and transition members connecting the coil plate laminated bodies inserted into different ones of the slots. The stator has at least one of a first shape in which at least two transition members are provided so as to cross each other as seen from the direction parallel to the rotating shaft and a second shape in which one coil plate ( | 09-17-2009 |
20090261682 | STATOR OF ROTATING ELECTRIC MACHINE, AND COMPONENT FOR USE IN STATOR - A coil sub-assy includes a coil plate which has an insulating film attached to at least one side thereof and an “I”-shaped portion to be inserted into a slot of a stator core. The plurality of coil plates forming coils of an identical phase are laminated in a thickness direction of the “I”-shaped portion. The coil plates opposite to each other are formed such that a shortest distance between end faces of the “I”-shaped portions in a width direction is longer than a shortest distance between end faces of the “I”-shaped portions in the thickness direction. | 10-22-2009 |
20100237725 | ROTATING ELECTRIC MACHINE AND DRIVE DEVICE - There is provided a rotating electric machine capable of preventing a coolant from being retained at an outer surface of a rotor. This rotating electric machine includes a rotation shaft provided so as to be rotatable, a core body secured to the rotation shaft, a permanent magnet embedded in the core body, and an end plate provided so as to be opposed to an axial end surface of the core body. A first coolant channel is formed in the rotation shaft to allow a coolant to flow therethrough. A second coolant channel is formed between the end plate and the axial end surface of the core body to communicate with the first coolant channel. A partition wall that partitions the second coolant channel in a circumferential direction and a path wall that guides the coolant in the second coolant channel toward an outer peripheral edge region of the axial end surface where the permanent magnet is placed are formed inside the second coolant channel. | 09-23-2010 |
20110285220 | MOTOR GENERATOR FOR VEHICLE TECHNICAL FIELD - A rotating electrical machine ( | 11-24-2011 |
20120111550 | EBULLIENT COOLING DEVICE - An ebullient cooling device having a simple structure and capable of limiting the bubbles to an appropriate volume. The ebullient cooling device for cooling a heat generating element is provided with a plurality of vertically arranged cooling channels comprising a lower channel ( | 05-10-2012 |