# US 10,374,493 B2 · Vehicle-use rotating electric machine > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,374,493 B2 - Document ID: US10374493B2 - Status: Granted - Kind: B2 - Application number: 15/502,079 - Filed: 2014-10-21 - Published: 2017-08-03 - Granted: 2019-08-06 - Earliest claimed: 2014-10-21 - Assignees: Mitsubishi Electric Corporation - Applicants: Mitsubishi Electric Corporation - Inventors: Yuzuru Kobayashi; Masao Akiyoshi; Kazunori Tanaka - Web page: https://patentgrep.com/patent/US10374493B2 ## CPC - H02K 5/225: {Terminal boxes or connection arrangements (specially adapted for submersible motors H02K5/132)} - H02K 11/05: Rectifiers associated with casings, enclosures or brackets - B60R 16/03: for supply of electrical power to vehicle subsystems {or for (circuit arrangements for charging batteries H02J7/00)} - B60Y 2400/60: Electric Machines, e.g. motors or generators - H02K 5/10: with arrangements for protection from ingress, e.g. water or fingers - H02K 9/06: with fans or impellers driven by the machine shaft - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) - B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY ## Abstract A configuration of a rectifying device configuring a vehicle-use rotating electric machine is such that when a lead drawn out from a stator winding is inserted into a through hole of a rear bracket forming a casing, a periphery of the lead is enclosed, and the through hole sealed, by a tubular member extended from a main body portion of a terminal block, and the through hole not blocked by the tubular member is sealed by a stopper portion extended in the same way from a main body portion of the terminal block. Even when the number of leads drawn out is reduced, standardization of the rear bracket is carried out by the through hole (3a) of the rear bracket being sealed by the stopper portion. ## Claims ### Claim 1 A vehicle-use rotating electric machine, comprising: a rotor rotatably supported inside a casing; a stator supported by the casing and disposed so as to enclose the rotor, and a rectifying device, disposed on an outer side on one axial direction side of the casing, that rectifies alternating current power generated in the stator, wherein the rectifying device has a terminal block necessary for electrical connection with a stator winding configuring the stator, the terminal block comprises a tubular member extended from a main body portion of the terminal block and inserted in a first through hole formed in the casing and a stopper portion extended from the main body portion of the terminal block and inserted in a second through hole formed in the casing, thereby sealing the first and second through holes, the tubular member covers a periphery of a lead of the stator winding inserted through the first through hole and guides an insertion of the lead, and the stopper portion seals a region of the second through hole of the casing not blocked by the tubular member. ### Claim 2 (depends on 1) The vehicle-use rotating electric machine according to claim 1, wherein the stopper portion of the terminal block is disposed distanced from the tubular member of the terminal block. ### Claim 3 (depends on 1) The vehicle-use rotating electric machine according to claim 1, wherein the stopper portion of the terminal block is disposed on an end face of the casing on the rotor side of the second through hole, and a surface of the stopper portion is disposed along an inner face on the rotor side of the casing. ### Claim 4 (depends on 1) The vehicle-use rotating electric machine according to claim 1, wherein the stopper portion of the terminal block has a flat plate portion having a face perpendicular to an axis of rotation of the vehicle-use rotating electric machine. ### Claim 5 (depends on 4) The vehicle-use rotating electric machine according to claim 4, wherein the stopper portion of the terminal block has a coupling portion extending in an axial direction and connecting a main body portion of the terminal block and the flat plate portion. ### Claim 6 A vehicle-use rotating electric machine, comprising: a rotor rotatably supported inside a casing; a stator supported by the casing and disposed so as to enclose the rotor; and a rectifying device, disposed on an outer side on one axial direction side of the casing, that rectifies alternating current power generated in the stator, wherein the rectifying device has a terminal block necessary for electrical connection with a stator winding configuring the stator, the terminal block has a tubular member and stopper portion extended from a main body portion of the terminal block and inserted in a through hole formed in the casing, thereby sealing the through hole in cooperation, the tubular member occupying a first portion of the through hole and the stopper portion occupying a second portion of the through hole located adjacent to the first portion in a circumferential direction of the vehicle-use rotating electric machine, the tubular member covers a periphery of a lead of the stator winding inserted through the through hole and guides an insertion of the lead, and the stopper portion seals the second portion of the through hole of the casing not blocked by the tubular member. ### Claim 7 (depends on 6) The vehicle-use rotating electric machine according to claim 6, wherein the stopper portion of the terminal block is disposed so as to form an integrated structure in contact with the tubular member of the terminal block. ### Claim 8 (depends on 6) The vehicle-use rotating electric machine according to claim 6, wherein the stopper portion of the terminal block is disposed on an end face of the casing on the rotor side of the through hole, and a surface of the stopper portion is disposed along an inner face on the rotor side of the casing. ### Claim 9 (depends on 6) The vehicle-use rotating electric machine according to claim 6, wherein the stopper portion of the terminal block has a flat plate portion having a face perpendicular to an axis of rotation of the vehicle-use rotating electric machine. ### Claim 10 (depends on 9) The vehicle-use rotating electric machine according to claim 9, wherein the stopper portion of the terminal block has a coupling portion extending in an axial direction and connecting a main body portion of the terminal block and the flat plate portion.