# US 10,321,611 B2 · Power conversion apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,321,611 B2 - Document ID: US10321611B2 - Status: Granted - Kind: B2 - Application number: 15/978,507 - Filed: 2018-05-14 - Published: 2018-11-15 - Granted: 2019-06-11 - Earliest claimed: 2017-05-15 - Assignees: Denso Corporation - Applicants: Denso Corporation - Inventors: Naoki Hirasawa; Ryota Tanabe; Taijiro Momose; Hiromi Ichijo - Web page: https://patentgrep.com/patent/US10321611B2 ## CPC - H05K 7/2089: {for power electronics, e.g. for inverters for controlling motor} - H02M 7/003: {Constructional details, e.g. physical layout, assembly, wiring or busbar connections} - H05K 5/0217: {Mechanical details of casings (covers, lids, hoods or members for covering apertures H05K5/03)} - H05K 7/1401: {comprising clamping or extracting means (H05K7/10 takes precedence)} - H05K 7/20927: {Liquid coolant without phase change} - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - H02M: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P) ## Abstract A power conversion apparatus includes a semiconductor module, an electronic component, a cooling member, a casing and a pressurizing member. The electronic component includes a load application part that receives a load caused by pressurizing force on a surface in a pressurizing member side with respect to the lamination direction; a load supporting part that comes into contact with a contact part of the casing on a surface opposite to the pressurizing member side with respect to the lamination direction; and a fastening part fastened to a casing fastening part. The load supporting part is disposed between the load application part and the fastening part; moment of force around the load supporting part is produced in the electronic component by the load applied to the load application part; and the moment causes the electronic component to be pressed towards a pressed part of the casing. ## Claims ### Claim 1 A power conversion apparatus comprising: a semiconductor module; an electronic component electrically connected to the semiconductor module; a cooling member that cools the semiconductor module and the electronic component, the cooling member being laminated with the semiconductor module and the electronic component to form a laminate; a casing that accommodates the laminate; and a pressurizing member that pressurizes the laminate in a lamination direction, wherein the electronic component includes: a load application part that receives a load caused by pressurizing force of the pressurizing member on a surface of the casing adjacent the pressurizing member in the lamination direction; a load supporting part that comes into contact with a surface of a contact part of the casing in the lamination direction, the surface of the contact part opposite to the surface of the casing adjacent the pressurizing member; and a fastening part fastened to a casing fastening part of the casing, the load supporting part is disposed between the load application part and the fastening part with respect to the lamination direction; a moment of force around the load supporting part is produced in the electronic component by the load applied to the load application part; and the moment causes the electronic component to be pressed towards a pressed part which constitutes a part of the casing. ### Claim 2 (depends on 1) The power conversion apparatus according to claim 1, wherein the casing fastening part is provided to the pressed part. ### Claim 3 (depends on 2) The power conversion apparatus according to claim 2, wherein the fastening part is fastened to the casing fastening part by a fastening member; and a direction of fastening force of the fastening member corresponds to a direction of a pressing force between the electronic component and the pressed part. ### Claim 4 (depends on 3) The power conversion apparatus according to claim 3, wherein the fastening member is configured as a bolt, the bolt being inserted into the fastening part from the casing fastening member. ### Claim 5 (depends on 1) The power conversion apparatus according to claim 1, wherein the load application part is configured to be perpendicular to the pressed part. ### Claim 6 (depends on 1) The power conversion apparatus according to claim 1, wherein the load supporting part is configured such that a dimension in a width direction which is perpendicular to the lamination direction and parallel to the pressed part is larger than a dimension of a height direction which is perpendicular to both of the lamination direction and the width direction. ### Claim 7 (depends on 1) The power conversion apparatus according to claim 1, wherein the load supporting part is configured such that a dimension in a width direction which is perpendicular to the lamination direction and parallel to the pressed part is smaller than a dimension of the electronic component in the width direction. ### Claim 8 (depends on 7) The power conversion apparatus according to claim 7, wherein the load supporting part is formed in a position shifted in the width direction with respect to the fastening part.