# US 11,029,073 B2 · Cold-storage heat exchanger > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,029,073 B2 - Document ID: US11029073B2 - Status: Granted - Kind: B2 - Application number: 16/166,369 - Filed: 2018-10-22 - Published: 2019-02-21 - Granted: 2021-06-08 - Earliest claimed: 2009-06-05 - Assignees: Denso Corporation - Applicants: Denso Corporation - Inventors: Atsushi Yamada; Seiji Inoue; Yoshio Miyata; Naoki Yokoyama; Etsuo Hasegawa; Jun Abei; Hiroshi Ishikawa; Aun Ota; Kouta Hagihara - Web page: https://patentgrep.com/patent/US11029073B2 ## CPC - F25D 13/02: with several cooling compartments, e.g. refrigerated locker systems - F25D 17/005: {in cold rooms} - F25D 19/00: Arrangement or mounting of refrigeration units with respect to devices {or objects to be refrigerated, e.g. infrared detectors} - F28D 1/0333: {the plates having integrated connecting members} - F28D 1/05391: {with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators} - F28D 15/00: Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls {; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies (F28D17/00, F28D19/00, F28D20/00 take precedence)} - F28D 20/02: using latent heat - F28F 1/10: Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses (crimped or corrugated elements F28F1/06, F28F1/08) - F28F 3/025: {the means being corrugated, plate-like elements} - F28F 3/046: {the deformations being linear, e.g. corrugations} - F28F 9/00: Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings - F28F 17/005: {Means for draining condensates from heat exchangers, e.g. from evaporators (F28B9/08 takes precedence)} - F25B 39/02: Evaporators - F28D 2020/0013: {the heat storage material being enclosed in elements attached to or integral with heat exchange conduits} - F28D 2021/0085: {Evaporators} - Y02E 60/14: Thermal energy storage - F25D: REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR (refrigerated showcases A47F3/04; thermally-insulated vessels for domestic use A47J41/00; refrigerated vehicles, see the appropriate subclasses of classes B60 - B64; containers with thermal insulation in general B65D81/38; heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants, or materials for the production of heat or cold by chemical reactions other than by combustion C09K5/00; thermally-insulated vessels for liquefied or solidified gases F17C; air-conditioning or air-humidification F24F; refrigeration machines, plants, or systems F25B; cooling of instruments or comparable apparatus without refrigeration G12B) - 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) - F28F: DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION (water and air traps, air venting F16) - F25B: REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A cold storage heat exchanger includes refrigerant tubes having therein refrigerant passages and arranged to provide a clearance therebetween. A cold storage container is bonded to a refrigerant tube and defines therein a compartment receiving a cold storage material. The cold storage container has protrusion portions protruding outward and being in contact with the refrigerant tube. ## Claims ### Claim 1 A cold storage heat exchanger comprising: a plurality of refrigerant tubes having therein refrigerant passages, and arranged to provide a clearance therebetween; a cold storage container that is bonded to a refrigerant tube and defines therein a compartment receiving a cold storage material; and a cooling air passage in which air flows as a wind to cool a space to be cooled in a cold storage time of the cold storage material and in a cold release time of the cold storage material, the cooling air passage being provided to contact a surface of the refrigerant tube on a side opposite to the cold storage container bonded to the refrigerant tube, wherein an outer surface of the cold storage container, onto which the refrigerant tube is bonded, is provided with a plurality of protrusion portions or a plurality of recess portions, the plurality of protrusion portions include a bonded portion bonded to the refrigerant tube, the bonded portion continuously extends from a position facing a windward edge portion of the refrigerant tube to a position facing a leeward edge portion of the refrigerant tube, and at least one part of the bonded portion is oblique to a longitudinal direction of the refrigerant tube. ### Claim 2 (depends on 1) The cold storage heat exchanger according to claim 1, wherein the plurality of protrusion portions are in contact with a surface of at least one of the plurality of refrigerant tubes, and each of the plurality of protrusion portions extends from an edge portion to another edge portion of the surface with continuously contacting the surface. ### Claim 3 (depends on 1) The cold storage heat exchanger according to claim 1, wherein the bonded portion is bonded to the refrigerant tube continuously from the windward edge portion of the refrigerant tube to the leeward edge portion of the refrigerant tube. ### Claim 4 (depends on 1) The cold storage heat exchanger according to claim 1, further comprising: a first heat exchange portion including a first refrigerant tube of the plurality of refrigerant tubes; and a second heat exchange portion positioned windward of the first heat exchange portion and including a second refrigerant tube of the plurality of refrigerant tubes, wherein the cold storage container is bonded to both of a first refrigerant tube and a second refrigerant tube. ### Claim 5 (depends on 4) The cold storage heat exchanger according to claim 4, wherein each of the plurality of protrusion portions continuously extends from the leeward edge portion of the first refrigerant tube to the windward edge portion of the second refrigerant tube. ### Claim 6 (depends on 5) The cold storage heat exchanger according to claim 5, wherein the protrusion portion slants such that a part of the protrusion portion facing the windward edge portion of the second refrigerant tube is positioned lower than a part of the same protrusion portion facing the leeward edge portion of the second refrigerant tube. ### Claim 7 (depends on 4) The cold storage heat exchanger according to claim 4, wherein the cold storage container includes: a first bonded portion bonded to the first refrigerant tube and extending continuously from the leeward edge portion of the first refrigerant tube to the windward edge portion of the first refrigerant tube; and a second bonded portion bonded to the second refrigerant tube and extending continuously from the leeward edge portion of the second refrigerant tube to the windward edge portion of the second refrigerant tube. ### Claim 8 (depends on 7) The cold storage heat exchanger according to claim 7, wherein the second bonded portion slants such that a part of the second bonded portion facing the windward edge portion of the second refrigerant tube is positioned lower than a part of the second bonded portion facing the leeward edge portion of the second refrigerant tube. ### Claim 9 (depends on 1) The cold storage heat exchanger according to claim 1, wherein the plurality of protrusion portions are arranged at intervals in a vertical direction, a vertical size of the intervals near to the edge portions of the plurality of protrusion portions in a wind direction is larger than a vertical size of the intervals near to center portions of the plurality of protrusion portions in the wind direction. ### Claim 10 (depends on 9) The cold storage heat exchanger according to claim 9, wherein the vertical size of the intervals gradually increases in a direction from the center portions toward the edge portions of the plurality of protrusion portions. ### Claim 11 (depends on 1) The cold storage heat exchanger according to claim 1, wherein the plurality of protrusion portions are arranged at intervals in a vertical direction, each of the plurality of protrusion portions includes an outer border which is parallel to and faces an outer border of an adjacent protrusion portion.