摘要:
A power source system includes a first battery string, a second battery string, and a third battery string. Each of the battery strings includes a plurality of batteries capable of outputting direct-current power. The battery strings are Y-connected so as to output three-phase alternating-current power to three-phase output terminals (alternating-current output terminals) as well as connected to a neutral line. On the neutral line, a neutral line capacitor for blocking a direct current, a neutral line switch disposed in series to the neutral line capacitor, and an electric resistance element disposed in parallel to the neutral line switch are provided.
摘要:
An external cylindrical ring (120A) for use in this rotating electric machine includes a body portion (121) and a flange (122), the body portion (121) including a Fastening region (121a) making internal contact with an outer circumferential surface of a stator core (111) to be fastened to the outer circumferential surface of the stator core (111), and a skirt region (121b) located at a bottom surface side of a casing and having an inner diameter (φD2) larger than an inner diameter (φD1) of the fastening region (121a). When the external cylindrical ring (120A) is fastened to the stator core 111), the deformation of the skirt region (121b) of the external cylindrical ring (120A) can be suppressed, thus enabling the dimensional accuracy of an outer surface of a cylindrical skirt region (125b) of the external cylindrical ring (120A) to fall within tolerance.
摘要:
Provided is a stator that can reduce iron loss and ensure a fastening force for stator core segments. The stator (140) of a generally hollow cylindrical shape includes a plurality of stator core segments (141) arranged adjacent to one another in a circumferential direction (DR1) of the stator (140) and each having an outer surface (142) on the outer side in a radial direction (DR2) of the stator (140), and the same number of curved members (151) as the stator core segments (141), the curved members (151) extending in the circumferential direction (DR1), and each having a projecting portion (154) curved to project toward the outer surface (142), contacting the outer surface (142) and pressing the outer surface (142) inward in the radial direction (DR2) of the stator (140).
摘要:
A stator core (501) is fixed by a centering jig (700), and in this state, a fixing hole (110h) is formed in a flange portion (110) provided on a fastening ring (100) for the stator core (501), using a central position (A1) as a reference for positioning, by drilling with a drill (D1). The fixing hole (110h) is opened to be located at a distance (R1) relative to the central position (A1). In a plan view, the fixing hole (110) is opened at a predetermined central angle interval (for example, intervals of 120°) relative to the central position (A1).
摘要:
A trans axle includes motor generators (MG2, MG1 (MG1 is arranged behind MG2)) with central rotation axes of respective rotors arranged coaxially, a power split device arranged coaxially with the central rotation axis of a crank shaft and between motor generators (MG1, MG2), and a power control unit controlling the motor generators (MG1, MG2). The power control unit is arranged such that a reactor (L1) is positioned at least on one side and a smoothing capacitor is positioned on the other side of the central rotation axis of motor generator (MG2). The motor generators (MG1, MG2), the power split device and the power control unit are housed and integrated in a metal case, and fixed on a body of a vehicle (1000) by means of an engine mount (EM).
摘要:
A stator core is composed of two molded powder magnetic cores joined in the axial direction. A yoke includes projections projecting axially outward from end surfaces in the axial direction of a tooth section. The length in the axial direction of the tooth section is gradually reduced toward radially outside_of the stator core, and the length in the circumferential direction of the tooth is gradually increased toward radially outside of the stator core. A molding is formed by pressing magnetic powder placed in a die by a single punch placed at one side in the axial direction and two punches parallelly placed on the other side in the axial direction. The stator core for a rotary electric machine is thus produced.
摘要:
A stator includes an annular stator core (141) formed by annularly arranging a plurality of split stator cores (175) and a coil (180) mounted on the stator core (141). Each split stator core (175) includes a yoke portion (176) extending in a circumferential direction of the stator core (141) and a stator tooth (171) protruding from the yoke portion (176). On least part of side surfaces (193) of the stator tooth (171) that are arranged in a circumferential direction of the stator core (141), a radial end surface (192) of the stator tooth (171) that is located radially inward of the stator core (141), and, of radial end surfaces (198, 199) of the yoke portion (176) that are arranged in a radial direction of the stator core (141), the radial end surface (198) at which the stator tooth (171) is formed, a rough surface portion is formed having surface roughness greater than that of circumferential end surfaces (190, 191) of the yoke portion (176) that are located in a circumferential direction of the stator core (141).
摘要:
An electrode stack includes a cathode active material layer (26) and an anode active material layer (28) stacked together, and an electrolyte layer (27) arranged between the cathode active material layer (26) and the anode active material layer (28). A through hole 32 extending in the stacking direction of the cathode active material layer (26) and anode active material layer (28) is formed in the cathode active material layer (26), anode active material layer (28) and the electrolyte layer (27). The electrode stack further includes a bolt (35) inserted to the hole (32) for integrally holding the cathode active material layer (26), anode active material layer (28) and the electrolyte layer (27). By such a structure, an electrode stack and a bipolar secondary battery that can effectively prevent displacement of interface between each of the cathode, anode and the electrolyte can be provided.