# US 12,193,200 B2 · Power converter > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,193,200 B2 - Document ID: US12193200B2 - Status: Granted - Kind: B2 - Application number: 17/779,403 - Filed: 2020-11-24 - Published: 2023-01-26 - Granted: 2025-01-07 - Earliest claimed: 2019-11-25 - Assignees: Lenze Swiss AG - Applicants: Lenze Swiss AG - Inventors: Andreas Burgermeister; Beat Heim; Dieter Tanner - Web page: https://patentgrep.com/patent/US12193200B2 ## CPC - H05K 7/209: {Heat transfer by conduction from internal heat source to heat radiating structure (H05K7/20909 takes precedence)} - H05K 7/20909: {Forced ventilation, e.g. on heat dissipaters coupled to components} - H05K 7/202: {Air circulating in closed loop within enclosure wherein heat is removed through heat-exchangers} - H02M 7/003: {Constructional details, e.g. physical layout, assembly, wiring or busbar connections} - 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 converter includes: a first circuit board; a cooling body; a housing, wherein the cooling body and the housing surround the first circuit board; a heat-generating component which is arranged on a side of the first circuit board facing the cooling body and which is coupled to the cooling body in a heat-conducting manner; and further components. The cooling body, the housing and the first circuit board border a first volume, in which the heat-generating component is arranged. The cooling body, the housing and the first circuit board border a second volume, in which the further components are arranged. ## Claims ### Claim 1 A power converter, comprising: a first circuit board; a cooling body; a housing, wherein the cooling body and the housing surround the first circuit board; a heat-generating component, which is arranged on a side of the first circuit board facing the cooling body, and which is coupled to the cooling body in a heat-conducting manner; and further components, wherein the cooling body, the housing and the first circuit board delimit a first volume, in which the heat-generating component is arranged, and wherein the cooling body, the housing and the first circuit board delimit a second volume, in which the further components are arranged. ### Claim 2 (depends on 1) The power converter according to claim 1, further comprising: a ventilator, which is arranged in the second volume and which generates a circulation of air in the second volume. ### Claim 3 (depends on 2) The power converter according to claim 2, wherein the cooling body, the housing and the first circuit board are geometrically configured such that the circulation of air in the second volume is greater than a circulation of air in the first volume. ### Claim 4 (depends on 3) The power converter according to claim 3, wherein the circulation of air is more than 10 times greater than the circulation of air in the first volume. ### Claim 5 (depends on 3) The power converter according to claim 3, wherein the housing is configured such that the ventilator executes the circulation of air exclusively within the housing. ### Claim 6 (depends on 2) The power converter according to claim 2, wherein vthe ventilator is an axial ventilator having an axis of rotation oriented in parallel with the first circuit board. ### Claim 7 (depends on 2) The power converter according to claim 2, further comprising: a second circuit board, which is oriented in a plane-parallel arrangement to the first circuit board. ### Claim 8 (depends on 7) The power converter according to claim 7, further comprising: a retaining element, wherein the retaining element holds the ventilator and the second circuit board. ### Claim 9 (depends on 8) The power converter according to claim 8, wherein the retaining element is geometrically configured such that an airflow, which is generated via the ventilator, is directed into the second volume. ### Claim 10 (depends on 1) The power converter according to claim 1, wherein the cooling body comprises cooling ribs on one side only, which side is averted from the heat-generating component. ### Claim 11 (depends on 1) The power converter according to claim 1, wherein the power converter has a protection rating of IP 66 or higher. ### Claim 12 (depends on 1) The power converter according to claim 1, wherein the power converter is a regenerative power supply unit or a frequency converter.