# US 10,500,936 B2 · Battery pack protective frame and battery pack > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,500,936 B2 - Document ID: US10500936B2 - Status: Granted - Kind: B2 - Application number: 15/914,775 - Filed: 2018-03-07 - Published: 2018-09-27 - Granted: 2019-12-10 - Earliest claimed: 2017-03-23 - Assignees: Contemporary Amperex Technology Co., Limited - Applicants: Contemporary Amperex Technology Co., Limited - Inventors: Kangyu Wang; Yanhuo Xiang; Mu Qian; Zongxiang Luo; Jiubiao Lin; Lei Yang - Web page: https://patentgrep.com/patent/US10500936B2 ## CPC - B60K 1/04: of the electric storage means for propulsion - B60L 3/0007: {Measures or means for preventing or attenuating collisions} - B60L 3/0046: {relating to electric energy storage systems, e.g. batteries or capacitors} - B60L 50/64: Constructional details of batteries specially adapted for electric vehicles - B60L 50/66: {Arrangements of batteries} - H01M 50/204: Racks, modules or packs for multiple batteries or multiple cells - H01M 50/26: Assemblies sealed to each other in a non-detachable manner - H01M 50/271: Lids or covers for the racks or secondary casings - H01M 50/289: characterised by spacing elements or positioning means within frames, racks or packs (spacing elements inside cells other than separators, membranes or diaphragms H01M50/471) - B60K 2001/0405: {characterised by their position} - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - Y02E 60/10: Energy storage using batteries - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - 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 - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract The present disclosure provides a battery pack protective frame and a battery pack. The battery pack protective frame comprises a plurality of frame components connected together. Each frame component comprises: a sealing portion extending in an up-down direction for sealing a plurality of battery assemblies to be mounted; a battery fixed portion protruding from a lower portion of the sealing portion toward an inner side in an inner-outer direction for fixing the plurality of battery assemblies to be mounted; and a protective portion protruding from the lower portion of the sealing portion toward an outer side in the inner-outer direction for connecting with a vehicle fixing member. The battery pack comprises a lower box body, a plurality of battery assemblies, a box cover, a gasket, a bottom plate and a protective plate. The lower box body comprises the battery pack protective frame. ## Claims ### Claim 1 A battery pack protective frame, comprising a plurality of frame components securely connected together, wherein each frame component comprises: a sealing portion extending in an up-down direction for sealing a plurality of battery assemblies to be mounted; a battery fixed portion protruding from a lower portion of the sealing portion toward an inner side in an inner-outer direction for fixing the plurality of battery assemblies to be mounted; and a protective portion protruding from the lower portion of the sealing portion toward an outer side in the inner-outer direction for connecting with a vehicle fixing member; wherein the sealing portion, the battery fixed portion and the protective portion of each frame component are integrally formed; wherein the protective portion has: a protective portion outer wall forming an external profile of the protective portion and a protective portion cavity inside the protective portion outer wall; and a plurality of protective portion ribbed plates positioned inside the protective portion cavity, supporting the protective portion outer wall and dividing the protective portion cavity into a plurality of sub-cavities; wherein two ends of each protective portion ribbed plate are connected to the protective portion outer wall; and wherein, in the plurality of protective portion ribbed plates, there are two protective portion ribbed plates which are provided at an outer end of the protective portion cavity in the inner-outer direction; in the two protective portion ribbed plates, an end of one protective portion ribbed plate and an end of the other one protective portion ribbed plate are connected together and are connected to an outer part of the protective portion outer wall in the inner-outer direction, and the other end of the one protective portion ribbed plate and the other end of the other one protective portion ribbed plate are respectively connected to two opposite parts of the protective portion outer wall in the up-down direction. ### Claim 2 (depends on 1) The battery pack protective frame according to claim 1, wherein in the plurality of protective portion ribbed plates, there is another protective portion ribbed plate which is further provided in the protective portion cavity of the protective portion and connects the other end of the one protective portion ribbed plate and the other end of the other one protective portion ribbed plate. ### Claim 3 (depends on 1) The battery pack protective frame according to claim 1, wherein in the plurality of protective portion ribbed plates, there are two protective portion ribbed plates which are provided at an inner end of the protective portion cavity in the inner-outer direction; in the two protective portion ribbed plates, an end of one protective portion ribbed plate and an end of the other one protective portion ribbed plate are connected together and are connected to an inner part of the protective portion outer wall in the inner-outer direction, and the other end of the one protective portion ribbed plate and the other end of the other one protective portion ribbed plate are respectively connected to two opposite parts of the protective portion outer wall in the up-down direction. ### Claim 4 (depends on 3) The battery pack protective frame according to claim 3, wherein in the plurality of protective portion ribbed plates, there is another protective portion ribbed plate which is further provided in the protective portion cavity of the protective portion and connects the other end of the one protective portion ribbed plate and the other end of the other one protective portion ribbed plate. ### Claim 5 (depends on 1) The battery pack protective frame according to claim 1, wherein the sealing portion has a sealing portion outer wall forming an external profile of the sealing portion and a sealing portion cavity inside the sealing portion outer wall; the battery fixed portion has a battery fixed portion outer wall forming an external profile of the battery fixed portion and a battery fixed portion cavity inside the battery fixed portion outer wall, and an end of the battery fixed portion outer wall is connected to an inner end of the sealing portion outer wall in the inner-outer direction; the protective portion has a protective portion outer wall forming an external profile of the protective portion and a protective portion cavity inside the protective portion outer wall, and an end of the protective portion outer wall is connected to an outer end of the sealing portion outer wall in the inner-outer direction; each frame component further comprises a connecting wall connecting the other end of the battery fixed portion outer wall and the other end of the protective portion outer wall, so that the sealing portion outer wall, the battery fixed portion outer wall, the protective portion outer wall and the connecting wall form a closed profile; the protective portion outer wall, the battery fixed portion outer wall and the connecting wall form an avoiding recess which is recessed upwardly in the up-down direction. ### Claim 6 (depends on 5) The battery pack protective frame according to claim 5, wherein each frame component further has at least one inter-portion ribbed plate, an end of each inter-portion ribbed plate is connected to the connecting wall, and the other end of the corresponding inter-portion ribbed plate is connected to one of the sealing portion outer wall, the battery fixed portion outer wall and the protective portion outer wall; the protective portion further has at least one protective portion ribbed plate positioned in the protective portion cavity and supporting the protective portion outer wall; one inter-portion ribbed plate and corresponding one protective portion ribbed plate are located in a straight line and are connected via a joint location between the connecting wall and the protective portion outer wall. ### Claim 7 (depends on 5) The battery pack protective frame according to claim 5, wherein the sealing portion further has at least a sealing portion ribbed plate positioned in the sealing portion cavity and supporting the sealing portion outer wall; the battery fixed portion further has a plurality of battery fixed portion cavity ribbed plates positioned in the battery fixed portion cavity and supporting the battery fixed portion outer wall; the protective portion further has at least one protective portion ribbed plate positioned in the protective portion cavity and supporting the protective portion outer wall. ### Claim 8 A battery pack, wherein the battery pack comprises: a lower box body comprising a battery pack protective frame, the battery pack protective frame comprises a plurality of frame components securely connected together, each frame component comprises a sealing portion extending in an up-down direction for sealing a plurality of battery assemblies to be mounted, a battery fixed portion protruding from a lower portion of the sealing portion toward an inner side in an inner-outer direction for fixing the plurality of battery assemblies to be mounted, and a protective portion protruding from the lower portion of the sealing portion toward an outer side in the inner-outer direction for connecting with a vehicle fixing member; a plurality of battery assemblies received in the battery pack protective frame and each battery assembly is securely connected to the corresponding battery fixed portion of the frame component; a box cover provided above the battery pack protective frame and securely connected to the sealing portions of the plurality of frame component; a gasket interposed between the box cover and the sealing portions of the plurality of frame components; a bottom plate provided under the battery pack protective frame and securely connected to the battery fixed portions of the plurality of frame components; and a protective plate provided under the bottom plate and securely connected to the protective portions of the plurality of frame components; wherein the sealing portion, the battery fixed portion and the protective portion of each frame component are integrally formed; wherein the protective portion has: a protective portion outer wall forming an external profile of the protective portion and a protective portion cavity inside the protective portion outer wall; and a plurality of protective portion ribbed plates positioned inside the protective portion cavity, supporting the protective portion outer wall and dividing the protective portion cavity into a plurality of sub-cavities; wherein two ends of each protective portion ribbed plate are connected to the protective portion outer wall; and wherein, in the plurality of protective portion ribbed plates, there are two protective portion ribbed plates which are provided at an outer end of the protective portion cavity in the inner-outer direction; in the two protective portion ribbed plates, an end of one protective portion ribbed plate and an end of the other one protective portion ribbed plate are connected together and are connected to an outer part of the protective portion outer wall in the inner-outer direction, and the other end of the one protective portion ribbed plate and the other end of the other one protective portion ribbed plate are respectively connected to two opposite parts of the protective portion outer wall in the up-down direction. ### Claim 9 (depends on 8) The battery pack according to claim 8, wherein in the plurality of protective portion ribbed plates, there is another protective portion ribbed plate which is further provided in the protective portion cavity of the protective portion and connects the other end of the one protective portion ribbed plate and the other end of the other one protective portion ribbed plate. ### Claim 10 (depends on 8) The battery pack according to claim 8, wherein in the plurality of protective portion ribbed plates, there are two protective portion ribbed plates which are provided at an inner end of the protective portion cavity in the inner-outer direction; in the two protective portion ribbed plates, an end of one protective portion ribbed plate and an end of the other one protective portion ribbed plate are connected together and are connected to an inner part of the protective portion outer wall in the inner-outer direction, and the other end of the one protective portion ribbed plate and the other end of the other one protective portion ribbed plate are respectively connected to two opposite parts of the protective portion outer wall in the up-down direction. ### Claim 11 (depends on 10) The battery pack according to claim 10, wherein in the plurality of protective portion ribbed plates, there is another protective portion ribbed plate which is further provided in the protective portion cavity of the protective portion and connects the other end of the one protective portion ribbed plate and the other end of the other one protective portion ribbed plate. ### Claim 12 (depends on 8) The battery pack according to claim 8, wherein the sealing portion has a sealing portion outer wall forming an external profile of the sealing portion and a sealing portion cavity inside the sealing portion outer wall; the battery fixed portion has a battery fixed portion outer wall forming an external profile of the battery fixed portion and a battery fixed portion cavity inside the battery fixed portion outer wall, and an end of the battery fixed portion outer wall is connected to an inner end of the sealing portion outer wall in the inner-outer direction; the protective portion has a protective portion outer wall forming an external profile of the protective portion and a protective portion cavity inside the protective portion outer wall, and an end of the protective portion outer wall is connected to an outer end of the sealing portion outer wall in the inner-outer direction; each frame component further comprises a connecting wall connecting the other end of the battery fixed portion outer wall and the other end of the protective portion outer wall, so that the sealing portion outer wall, the battery fixed portion outer wall, the protective portion outer wall and the connecting wall form a closed profile; the protective portion outer wall, the battery fixed portion outer wall and the connecting wall form an avoiding recess which is recessed upwardly in the up-down direction. ### Claim 13 (depends on 12) The battery pack according to claim 12, wherein each frame component further has at least one inter-portion ribbed plate, an end of each inter-portion ribbed plate is connected to the connecting wall, and the other end of the corresponding inter-portion ribbed plate is connected to one of the sealing portion outer wall, the battery fixed portion outer wall and the protective portion outer wall; the protective portion further has at least one protective portion ribbed plate positioned in the protective portion cavity and supporting the protective portion outer wall; one inter-portion ribbed plate and corresponding one protective portion ribbed plate are located in a straight line and are connected via a joint location between the connecting wall and the protective portion outer wall. ### Claim 14 (depends on 12) The battery pack according to claim 12, wherein the sealing portion further has at least a sealing portion ribbed plate positioned in the sealing portion cavity and supporting the sealing portion outer wall; the battery fixed portion further has a plurality of battery fixed portion cavity ribbed plates positioned in the battery fixed portion cavity and supporting the battery fixed portion outer wall; the protective portion further has at least one protective portion ribbed plate positioned in the protective portion cavity and supporting the protective portion outer wall.