# US 2024/0199239 A1 · Cooling device and space structure > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2024/0199239 A1 - Document ID: US20240199239A1 - Status: Published application - Kind: A1 - Application number: 18/287,186 - Filed: 2021-04-28 - Published: 2024-06-20 - Earliest claimed: 2021-04-28 - Assignees: Mitsubishi Electric Corporation - Applicants: Mitsubishi Electric Corporation - Inventors: Toru YAMADA; Takashi MORIYAMA; Kenji KATO; Hiroaki ISHIKAWA - Web page: https://patentgrep.com/patent/US20240199239A1 ## CPC - B64G 1/50: for temperature control - F28D 20/0056: {using solid heat storage material (F28D20/0052 takes precedence)} - B64G 1/503: {Radiator panels} - F25B 1/00: Compression machines, plants or systems with non-reversible cycle (F25B3/00, F25B5/00, F25B6/00, F25B7/00, F25B9/00 take precedence) - F25B 21/02: using Peltier effect; using Nernst-Ettinghausen effect - F25B 41/00: Fluid-circulation arrangements - F25B 41/40: Fluid line arrangements - F25B 43/006: {Accumulators} - F25B 49/00: Arrangement or mounting of control or safety devices - F25B 49/02: for compression type machines, plants or systems - F28F 21/02: of carbon, e.g. graphite - F05D 2260/208: using heat pipes - F25B 2400/00: Component parts or details not otherwise provided for in this subclass - F25B 2400/24: Thermal storage element - F25B 2500/00: Problems to be solved - F25B 2500/23: High amount of refrigerant in the system - F28D 2020/0013: {the heat storage material being enclosed in elements attached to or integral with heat exchange conduits} - F28D 2020/0078: {Heat exchanger arrangements} - F28D 2021/0061: {for phase-change applications} - B64G: COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR - F28D: HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT (fluid heaters having heat generating means and heat transferring means F24H; furnaces F27; details of heat-exchange apparatus of general) - F25B: REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS - F28F: DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION (water and air traps, air venting F16) - F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS ## Abstract A cooling device capable of preventing inflow of bubbles to a pump even in a zero-gravity space and a space structure including the cooling device are obtained. In a cooling device, a pump, a cooler, and a radiator are connected sequentially by a refrigerant flow path. An accumulator is connected to the refrigerant flow path connecting the pump and the radiator. The accumulator includes a container storing refrigerant, a cooling section cooling a base-end side of the container, and a heating section heating a front-end side of the container. ## Claims ### Claim at position 1 -11. (canceled) ### Claim 12 A cooling device comprising: a pump for circulating refrigerant by boosting pressure of the refrigerant; a cooler for evaporating the refrigerant pumped from the pump; a radiator for condensing the refrigerant evaporated by the cooler; a refrigerant flow path sequentially connecting the pump, the cooler, and the radiator; and an accumulator comprising: a container for storing the refrigerant; a cooling section for cooling a base-end side of the container; and a heating section for heating a front-end side of the container, the base-end side of the container being connected to the refrigerant flow path connecting the pump and the radiator, wherein the cooling section cools the container by bringing the container into thermal contact with the refrigerant flow path on an outlet side of the pump. ### Claim 13 A cooling device comprising: a pump for circulating refrigerant by boosting pressure of the refrigerant; a cooler for evaporating the refrigerant pumped from the pump; a radiator for condensing the refrigerant evaporated by the cooler; a refrigerant flow path sequentially connecting the pump, the cooler, and the radiator; and an accumulator comprising: a container for storing the refrigerant; a cooling section for cooling a base-end side of the container; and a heating section for heating a front-end side of the container, the base-end side of the container being connected to the refrigerant flow path connecting the pump and the radiator, wherein the radiator is provided to be in contact with a heat dissipation surface, and the cooling section performs cooling by bringing the container into contact with the heat dissipation surface. ### Claim 14 A cooling device comprising: a pump for circulating refrigerant by boosting pressure of the refrigerant; a cooler for evaporating the refrigerant pumped from the pump; a radiator for condensing the refrigerant evaporated by the cooler; a refrigerant flow path sequentially connecting the pump, the cooler, and the radiator; and an accumulator comprising: a container for storing the refrigerant; a cooling section for cooling a base-end side of the container; and a heating section for heating a front-end side of the container, the base-end side of the container being connected to the refrigerant flow path connecting the pump and the radiator, wherein the front-end side of the container of the accumulator and the refrigerant flow path are connected by a bypass flow path provided with a valve. ### Claim 15 (depends on 13) The cooling device according to claim 13, wherein the cooling section cools the container by bringing the container into thermal contact with the refrigerant flow path on an outlet side of the pump. ### Claim 16 (depends on 14) The cooling device according to claim 14, wherein the cooling section cools the container by bringing the container into thermal contact with the refrigerant flow path on an outlet side of the pump. ### Claim 17 (depends on 12) The cooling device according to claim 12, wherein a bypass flow path provided with a valve is connected to the refrigerant flow path on the outlet side of the pump. ### Claim 18 (depends on 12) The cooling device according to claim 12, wherein the cooling section comprises a Peltier element, and performs cooling by bringing one side of the Peltier element into contact with the container and by bringing the other side of the Peltier element into contact with the refrigerant flow path on the outlet side of the pump. ### Claim 19 (depends on 13) The cooling device according to claim 13, wherein the cooling section comprises a Peltier element, and performs cooling by bringing one side of the Peltier element into contact with the container and by bringing the other side of the Peltier element into contact with the refrigerant flow path on the outlet side of the pump. ### Claim 20 (depends on 14) The cooling device according to claim 14, wherein the radiator is provided to be in contact with a heat dissipation surface, and the cooling section performs cooling by bringing the container into contact with the heat dissipation surface. ### Claim 21 (depends on 12) The cooling device according to claim 12, wherein the heating section performs heating by providing a heater for the container. ### Claim 22 (depends on 13) The cooling device according to claim 13, wherein the heating section performs heating by providing a heater for the container. ### Claim 23 (depends on 12) The cooling device according to claim 12, wherein the heating section comprises the Peltier element, and performs heating by bringing one side of the Peltier element into contact with the container and by bringing the other side of the Peltier element into contact with the refrigerant flow path on the outlet side of the radiator. ### Claim 24 (depends on 13) The cooling device according to claim 13, wherein the heating section comprises the Peltier element, and performs heating by bringing one side of the Peltier element into contact with the container and by bringing the other side of the Peltier element into contact with the refrigerant flow path on the outlet side of the radiator. ### Claim 25 (depends on 12) The cooling device according to claim 12, wherein the heating section comprises the Peltier element, and performs heating by bringing one side of the Peltier element into contact with the container and by bringing the other side of the Peltier element into contact with the refrigerant flow path on the outlet side of the cooler. ### Claim 26 (depends on 13) The cooling device according to claim 13, wherein the heating section comprises the Peltier element, and performs heating by bringing one side of the Peltier element into contact with the container and by bringing the other side of the Peltier element into contact with the refrigerant flow path on the outlet side of the cooler. ### Claim 27 (depends on 12) The cooling device according to claim 12, wherein a porous material is provided on the base-end side of the container of the accumulator. ### Claim 28 (depends on 13) The cooling device according to claim 13, wherein a porous material is provided on the base-end side of the container of the accumulator. ### Claim 29 (depends on 12) A space structure comprising the cooling device according to claim 12. ### Claim 30 (depends on 13) A space structure comprising the cooling device according to claim 13. ### Claim 31 (depends on 14) A space structure comprising the cooling device according to claim 14.