# US 2026/0100442 A1 · Box body, battery, and electrical device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0100442 A1 - Document ID: US20260100442A1 - Status: Published application - Kind: A1 - Application number: 19/416,524 - Filed: 2025-12-11 - Published: 2026-04-09 - Earliest claimed: 2023-06-12 - Assignees: Contemporary Amperex Technology Co., Limited - Applicants: Contemporary Amperex Technology Co., Limited - Inventors: Kai WU; Xuan CHEN; Weigang SHI; Zhi WANG; Zengzhong WANG - Web page: https://patentgrep.com/patent/US20260100442A1 ## CPC - H01M 10/6556: Solid parts with flow channel passages or pipes for heat exchange (closed pipes H01M10/6552) - H01M 10/613: Cooling or keeping cold - H01M 10/625: Vehicles - H01M 10/6567: Liquids - H01M 10/6568: characterised by flow circuits, e.g. loops, located externally to the cells or cell casings - H01M 50/204: Racks, modules or packs for multiple batteries or multiple cells - H01M 50/249: specially adapted for aircraft or vehicles, e.g. cars or trains (constructional details of batteries specially adapted for electric vehicles B60L50/64) - H01M 50/262: with fastening means, e.g. locks - B60L 50/60: using power supplied by batteries (in combination with fuel cells B60L50/75) - B60R 16/033: characterised by the use of electrical cells or batteries (for propulsion puposes B60K1/04; supplying batteries to, or removing batteries from, vehicles B60S5/06; testing of charge state G01R31/36) - H01M 10/615: Heating or keeping warm - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - Y02E 60/10: Energy storage using batteries - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A box body comprises an end plate, a face plate, and a medium flow channel, and the face plate is connected to one end of the end plate. The medium flow channel is used to accommodate a heat exchange medium. The medium flow channel is at least partially located on the end plate. The medium flow channel is provided with a medium inlet and a medium outlet, and the medium inlet and/or the medium outlet is arranged on the face plate. The box body is provided with the medium flow channel, and the medium flow channel is used for the heat exchange medium to pass through to carry out thermal management on a device in the box body. ## Claims ### Claim 1 A box body, comprising: an end plate; a face plate, connected to one end of the end plate; and a medium flow channel, used to accommodate a heat exchange medium, the medium flow channel being at least partially located on the end plate, the medium flow channel being provided with a medium inlet and a medium outlet, and the medium inlet and/or the medium outlet being arranged on the face plate. ### Claim 2 (depends on 1) The box body according to claim 1, wherein the medium flow channel comprises a first flow channel and a second flow channel, the first flow channel being arranged on the end plate, the second flow channel being arranged on the face plate, the second flow channel being communicated with the first flow channel, and the medium inlet or the medium outlet for the second flow channel being formed on the face plate. ### Claim 3 (depends on 2) The box body according to claim 2, wherein the end plate comprises a first surface, a first opening for the first channel is formed on the first surface, the face plate comprises a second surface, and a second opening for the second channel is formed on the second surface, the first surface and the second surface being in contact, and the first opening being at least partially opposite to the second opening, so that the first flow channel is communicated with the second flow channel. ### Claim 4 (depends on 2) The box body according to claim 2, wherein the medium inlet or the medium outlet for the second flow channel is formed on the surface of the face plate facing away from the end plate. ### Claim 5 (depends on 2) The box body according to claim 2, wherein along a first direction, the face plate is connected to one end of the end plate, and the second flow channel runs through two opposite surfaces of the face plate along the first direction. ### Claim 6 (depends on 2) The box body according to claim 2, wherein the second flow channel comprises a first section and a second section, the first section being communicated with the second section, the medium inlet or the medium outlet being formed at one end of the first section facing away from the second section, the second section being communicated with the first flow channel, a cross section of the first section being circular, and cross sections of the second section and the first flow channel being both square. ### Claim 7 (depends on 2) The box body according to claim 2, wherein the medium flow channel comprises two second flow channels, and the first flow channel communicates the two second flow channels, the medium inlet for one of the second flow channels being formed on the face plate, and the medium outlet for the other of the second flow channels being formed on the face plate. ### Claim 8 (depends on 1) The box body according to claim 1, wherein along a first direction, the face plate is connected to one end of the end plate, and the face plate comprises a face plate body and a connecting part, the connecting part protruding from the face plate body along the first direction, the connecting part connecting the end plate with the face plate body, and the medium flow channel being partially formed at the connecting part. ### Claim 9 (depends on 8) The box body according to claim 8, wherein the connecting part is provided with a mounting structure, the mounting structure being used for mounting an internal device, and the internal device being accommodated in the box body. ### Claim 10 (depends on 9) The box body according to claim 9, wherein the mounting structure comprises a mounting hole, the mounting hole being provided with internal threads. ### Claim 11 (depends on 10) The box body according to claim 10, wherein the mounting hole is a blind hole. ### Claim 12 (depends on 9) The box body according to claim 9, wherein the connecting part is provided with a plurality of mounting structures, the plurality of mounting structures being arranged at intervals. ### Claim 13 (depends on 8) The box body according to claim 8, wherein the connecting part is provided with a hanging structure, the hanging structure being used to connect the box body with an external device, and the external device being located outside the box body. ### Claim 14 (depends on 13) The box body according to claim 13, wherein the hanging structure comprises a hanging hole, the hanging hole being provided with internal threads. ### Claim 15 (depends on 14) The box body according to claim 14, wherein the hanging hole is a blind hole. ### Claim 16 (depends on 13) The box body according to claim 13, wherein the box body comprises a hanging component arranged at the connecting part, and the hanging structure is arranged on the hanging component. ### Claim 17 (depends on 16) The box body according to claim 16, wherein the hanging component is welded to the connecting part. ### Claim 18 (depends on 16) The box body according to claim 16, wherein the hanging component is a sleeve, the sleeve being provided with internal threads. ### Claim 19 (depends on 1) A battery, comprising: a battery cell; and the box body according to claim 1, the battery cell being accommodated in the box body. ### Claim 20 (depends on 19) An electrical device, comprising the battery according to claim 19, the battery being used to provide electrical energy for the electrical device.