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WO2025187372A1 - Battery pack - Google Patents

Battery pack

Info

Publication number
WO2025187372A1
WO2025187372A1 PCT/JP2025/005103 JP2025005103W WO2025187372A1 WO 2025187372 A1 WO2025187372 A1 WO 2025187372A1 JP 2025005103 W JP2025005103 W JP 2025005103W WO 2025187372 A1 WO2025187372 A1 WO 2025187372A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust pipe
battery pack
case
cylindrical member
battery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/JP2025/005103
Other languages
French (fr)
Japanese (ja)
Other versions
WO2025187372A8 (en
Inventor
ウェン レオン ルー
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Motors Corp
Original Assignee
Mitsubishi Motors Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Motors Corp filed Critical Mitsubishi Motors Corp
Publication of WO2025187372A1 publication Critical patent/WO2025187372A1/en
Publication of WO2025187372A8 publication Critical patent/WO2025187372A8/en
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
    • B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/24—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/28—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the electric energy storing means, e.g. batteries or capacitors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • This disclosure relates to a battery pack.
  • Hybrid vehicles with an engine and battery pack have issues with the layout of the engine's exhaust pipe and battery pack. For example, if the exhaust pipe were to pass to the left or right side of the battery pack in the vehicle's width direction, the exhaust pipe would become longer or have more bends, resulting in greater exhaust gas pressure loss and adversely affecting exhaust gas flow. On the other hand, if the exhaust pipe were to be shorter or have fewer bends, the battery pack would be positioned to the right or left of the vehicle's width center, which would adversely affect the balance of the vehicle.
  • Patent Document 1 discloses a configuration in which a recessed groove is provided in the battery pack case. By arranging the exhaust pipe straight along this groove, the bends in the exhaust pipe are eliminated and the battery pack can be positioned in the vehicle's width center.
  • the portion where the groove is provided is weaker than other portions, which may make the battery pack more susceptible to damage starting from the groove in the event of a vehicle collision.
  • At least one embodiment of the present disclosure aims to provide a battery pack that can be laid out in an appropriate position relative to the exhaust pipe, without reducing the strength of the battery pack and while suppressing the thermal effects of exhaust gas on the battery cells.
  • the battery pack disclosed herein is a battery pack for a hybrid vehicle having an engine, and includes: a case that houses at least one battery cell; a metallic tubular member that is fixed to the case so as to penetrate the case; an exhaust pipe section that forms part of an exhaust pipe through which exhaust gas from the engine flows, the exhaust pipe section being inserted into the tubular member so as not to contact the inner surface of the tubular member; and two sealing members that are provided to close one end and the other end of the tubular member, the two sealing members having a first through hole through which the exhaust pipe section is inserted and at least one second through hole different from the first through hole.
  • the exhaust pipe inserted into the tubular member fixed to the case so as to penetrate the case constitutes part of the exhaust pipe through which exhaust gas from the engine flows, allowing the battery pack to be laid out without bending the exhaust pipe.
  • the tubular member also improves the strength of the case.
  • air flows between the inner surface of the tubular member and the exhaust pipe through the second through-hole allowing heat exchange between the exhaust gas flowing through the exhaust pipe and the air, thereby cooling the exhaust gas. This reduces the impact of exhaust gas heat on the tubular member and, ultimately, on the battery cells inside the case. Therefore, the battery pack can be laid out in an appropriate position relative to the exhaust pipe without reducing the strength of the battery pack and while reducing the impact of exhaust gas heat on the battery cells.
  • FIG. 1 is a schematic diagram illustrating the configuration of a battery pack according to an embodiment of the present disclosure, with the case lid removed from the case tray to allow the interior of the case to be seen.
  • FIG. 1A and 1B are diagrams illustrating the arrangement of a battery module and a cylindrical member within a case of a battery pack according to an embodiment of the present disclosure.
  • FIG. 10 is a cross-sectional view showing the internal configuration of a cylindrical member of a battery pack according to another embodiment of the present disclosure.
  • 10A and 10B are diagrams illustrating an example of the configuration of a vibration damping member provided at a connection between an exhaust pipe and an exhaust pipe section in a battery pack according to yet another embodiment of the present disclosure.
  • a battery pack according to an embodiment of the present disclosure will be described below with reference to the drawings.
  • the embodiment described below represents one aspect of the present disclosure and does not limit the disclosure, and can be modified as desired within the scope of the technical concept of the present disclosure.
  • the battery pack 1 is a battery pack mounted on a vehicle.
  • This vehicle is a hybrid electric vehicle (HV) powered by an engine and a motor.
  • a hybrid electric vehicle is, for example, a plug-in hybrid electric vehicle (PHEV, PHV) that can be charged from an external power source via external charging or can externally supply power to an external device, but is not limited to plug-in hybrid electric vehicles.
  • PHEV plug-in hybrid electric vehicle
  • Battery pack 1 comprises a case 2 and a battery module 5 housed within case 2.
  • Case 2 comprises a tray 3 on which battery module 5 is placed, and a lid 4 which combines with tray 3 on which battery module 5 is placed to seal battery module 5 inside case 2.
  • Figure 1 shows battery module 5 including two battery modules 5a and 5b, this is not limited to this configuration and it is sufficient that at least one battery module is housed.
  • what is housed within case 2 is not limited to a battery module made up of multiple battery cells, and at least one battery cell may be housed within case 2.
  • a metallic tubular member 10 is provided in the case 2 so as to penetrate the case 2.
  • the tubular member 10 may be extruded aluminum.
  • notches 3b and 4b into which the tubular member 10 fits are formed in each of a pair of side plates 3a, 3a of the tray 3, which are positioned in the fore-and-aft direction of the vehicle when the battery pack 1 is mounted on the vehicle, and a pair of side plates 4a, 4a of the lid 4, which are positioned in the fore-and-aft direction of the vehicle.
  • the tubular member 10 "penetrating the case 2" means that the tubular member 10 penetrates one of the pair of side plates 3a, 3a from the outside of the case 2, extends inside the case 2, and further penetrates the other of the pair of side plates 3a, 3a to extend to the outside of the case 2.
  • a cross member 3d extending in the vehicle width direction may be provided on the tray 3. If such a cross member 3d is provided, the cross member 3d also has a notch 3e formed therein into which the tubular member 10 fits. While Figure 1 shows a configuration in which one cross member 3d is provided, two or more cross members 3d may be provided between a pair of side plates 3a, 3a. In that case, a notch 3e is formed in each cross member 3d.
  • An exhaust pipe section 11 is inserted into the cylindrical member 10 so as not to come into contact with the inner peripheral surface 10a (see Figure 3) of the cylindrical member 10.
  • the exhaust pipe section 11 is connected to an exhaust pipe P through which exhaust gas G emitted from an engine (not shown) flows, and constitutes part of the exhaust pipe P.
  • exhaust gas G flows through the exhaust pipe section 11.
  • Connection sections 11a for connecting to the exhaust pipe P are provided at both ends of the exhaust pipe section 11.
  • the connection sections 11a at both ends of the exhaust pipe section 11 are located outside the cylindrical member 10.
  • the exhaust pipe P is divided into an upstream section P1 and a downstream section P2 in the flow direction of the exhaust gas G so that the exhaust pipe section 11 can be connected midway through the exhaust pipe P.
  • Connection sections Pa for connecting to the connection sections 11a at both ends of the exhaust pipe section 11 are provided at the downstream end of section P1 and the upstream end of section P2, respectively.
  • the sealing member 12 has a first through hole 15 into which the exhaust pipe section 11 is inserted, and at least one second through hole 16 different from the first through hole 15.
  • the sealing member 13 has the same configuration as the sealing member 12. If a cross member 3d is provided on the tray 3, a sealing member 14 having the same configuration as the sealing member 12 may be provided inside the cylindrical member 10 at the position of the notch 3e of the cross member 3d.
  • the exhaust pipe section 11 inserted into the tubular member 10 fixed to the case 2 so as to penetrate the case 2 constitutes part of the exhaust pipe P through which exhaust gas G from the engine flows.
  • the tubular member 10 also improves the strength of the case 2.
  • the cross section of the tubular member 10 cut perpendicularly to its length is hexagonal, but this is not limited to this shape.
  • the cross section may be a polygon other than hexagonal, or may be circular, elliptical, or any other shape.
  • the shape of each of the sealing members 12, 13, and 14 is the same as the cross section of the tubular member 10.
  • the cross section of the tubular member 10 is preferably hexagonal for the reasons explained below.
  • the second through holes 16 of each of the sealing members 12, 13, and 14 have a configuration in which the second through holes 16 form a honeycomb structure.
  • the aperture ratio of the second through holes 16 it is preferable to increase the aperture ratio of the second through holes 16 so that more air flows into the tubular member 10. However, doing so reduces the strength of the sealing members 12, 13, and 14, which may reduce the effectiveness of improving the strength of the case 2.
  • the second through holes 16 form a honeycomb structure, it is possible to increase the aperture ratio of the second through holes 16 while minimizing the reduction in the strength of the sealing members 12, 13, and 14.
  • a heat insulating material 20 may be provided between the inner circumferential surface 10a of the tubular member 10 and the outer circumferential surface 11b of the exhaust pipe portion 11.
  • the heat insulating material 20 may be a heat insulating material 20a that covers the outer circumferential surface 11b of the exhaust pipe portion 11, or a heat insulating material 20b that is laid between the inner circumferential surface 10a of the tubular member 10 and the outer circumferential surface 11b of the exhaust pipe portion 11, or a combination of these. This further enhances the effect of suppressing the impact of the heat of the exhaust gas G on the battery module 5.
  • the exhaust pipe P and the exhaust pipe section 11 may be connected via a vibration damping member 30.
  • the vibration damping member 30 has the function of absorbing vibrations even when the exhaust pipe P vibrates, thereby damping the vibrations transmitted to the exhaust pipe section 11.
  • a vibration damping member 30 may, for example, include connecting pipes 31, 32 inserted into the connection portion Pa of the exhaust pipe P and the connection portion 11a of the exhaust pipe section 11, respectively, and a flexible pipe 33 connecting the connecting pipe 31 and the connecting pipe 32.
  • FIG. 4 shows a configuration in which the upstream portion P1 of the exhaust pipe P is connected to the exhaust pipe section 11 via a vibration damping member 30, but the downstream portion P2 of the exhaust pipe P (see Figure 1) may also be connected to the exhaust pipe section 11 via a vibration damping member 30, or only one of the connections may be made via a vibration damping member 30.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Transportation (AREA)
  • Manufacturing & Machinery (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

A battery pack for a hybrid vehicle having an engine, the battery pack comprising: a case for accommodating at least one battery cell; a metal cylindrical member fixed to the case so as to penetrate the case; an exhaust pipe part constituting a part of an exhaust pipe through which exhaust gas from the engine flows, and inserted into the cylindrical member so as not to come into contact with an inner peripheral surface of the cylindrical member; and two sealing members provided so as to close one end and the other end of the cylindrical member, and in which a first through hole into which the exhaust pipe part is inserted and at least one second through hole different from the first through hole are formed.

Description

電池パックBattery pack

　本開示は、電池パックに関する。 This disclosure relates to a battery pack.

　エンジンと電池パックとを有するハイブリッド車では、エンジンの排気管及び電池パックのレイアウトの問題が発生する。例えば、車幅方向に対して電池パックの左側又は右側を排気管が通るように配置しようとすると、排気管の長さが長くなったり、曲がり部分が多くなったりして、排気ガスの圧力損失が大きくなり、排気ガスの流通に悪影響がある。一方で、排気管の長さを短くしようとしたり、曲がり部分を少なくしようとしたりすると、電池パックを車幅方向の中心から車幅方向の右側又は左側にずらした位置に配置することになるので、車体のバランスが悪くなる。代替的なレイアウトとして、特許文献１には、電池パックのケースに窪んだ溝を設けた構成が開示されており、この溝に沿って排気管を真っ直ぐに設けることにより、排気管の曲がり部分を無くし、電池パックを車幅方向の中心に位置させることができる。 Hybrid vehicles with an engine and battery pack have issues with the layout of the engine's exhaust pipe and battery pack. For example, if the exhaust pipe were to pass to the left or right side of the battery pack in the vehicle's width direction, the exhaust pipe would become longer or have more bends, resulting in greater exhaust gas pressure loss and adversely affecting exhaust gas flow. On the other hand, if the exhaust pipe were to be shorter or have fewer bends, the battery pack would be positioned to the right or left of the vehicle's width center, which would adversely affect the balance of the vehicle. As an alternative layout, Patent Document 1 discloses a configuration in which a recessed groove is provided in the battery pack case. By arranging the exhaust pipe straight along this groove, the bends in the exhaust pipe are eliminated and the battery pack can be positioned in the vehicle's width center.

特開２０１９－２５９３４号公報JP 2019-25934 A

　しかしながら、特許文献１に開示された電池パックでは、溝が設けられた部分が他の部分に比べて弱くなるので、車の衝突時にこの溝を起点として電池パックが破損しやすくなるおそれがある。 However, in the battery pack disclosed in Patent Document 1, the portion where the groove is provided is weaker than other portions, which may make the battery pack more susceptible to damage starting from the groove in the event of a vehicle collision.

　上述の事情に鑑みて、本開示の少なくとも１つの実施形態は、電池パックの強度を低下させないとともに電池セルに対する排気ガスの熱の影響を抑制しながら、排気管に対して適切な位置にレイアウト可能な電池パックを提供することを目的とする。 In light of the above circumstances, at least one embodiment of the present disclosure aims to provide a battery pack that can be laid out in an appropriate position relative to the exhaust pipe, without reducing the strength of the battery pack and while suppressing the thermal effects of exhaust gas on the battery cells.

　上記目的を達成するため、本開示に係る電池パックは、エンジンを有するハイブリッド車両用の電池パックであって、少なくとも１つの電池セルを収容するケースと、前記ケースを貫通するようにケースに固定された金属製の筒状部材と、前記エンジンからの排気ガスが流通する排気管の一部を構成する排気管部であって、前記筒状部材の内周面に接しないように前記筒状部材に挿入された排気管部と、前記筒状部材の一方の端部及び他方の端部を塞ぐように設けられた２つの封止部材であって、前記排気管部が挿入される第１貫通孔と、該第１貫通孔とは異なる少なくとも１つの第２貫通孔とが形成された２つの封止部材とを備える。 In order to achieve the above object, the battery pack disclosed herein is a battery pack for a hybrid vehicle having an engine, and includes: a case that houses at least one battery cell; a metallic tubular member that is fixed to the case so as to penetrate the case; an exhaust pipe section that forms part of an exhaust pipe through which exhaust gas from the engine flows, the exhaust pipe section being inserted into the tubular member so as not to contact the inner surface of the tubular member; and two sealing members that are provided to close one end and the other end of the tubular member, the two sealing members having a first through hole through which the exhaust pipe section is inserted and at least one second through hole different from the first through hole.

　本開示の電池パックによれば、ケースを貫通するようにケースに固定された筒状部材に挿入された排気管部が、エンジンからの排気ガスが流通する排気管の一部を構成するので、排気管を曲げずに電池パックをレイアウトできる。また、筒状部材によりケースの強度を向上させることができ、さらに、この電池パックが搭載された車両の走行時に、第２貫通孔を介して空気が筒状部材の内周面と排気管部との間を流れることにより、排気管部を流れる排気ガスと空気とが熱交換されて排気ガスが冷却されるので、排気ガスの熱が筒状部材に与える影響、引いてはケースの内部の電池セルに与える影響を抑制することができる。したがって、電池パックの強度を低下させないとともに電池セルに対する排気ガスの熱の影響を抑制しながら、排気管に対して適切な位置に電池パックをレイアウト可能となる。 In the battery pack disclosed herein, the exhaust pipe inserted into the tubular member fixed to the case so as to penetrate the case constitutes part of the exhaust pipe through which exhaust gas from the engine flows, allowing the battery pack to be laid out without bending the exhaust pipe. The tubular member also improves the strength of the case. Furthermore, when a vehicle equipped with this battery pack is running, air flows between the inner surface of the tubular member and the exhaust pipe through the second through-hole, allowing heat exchange between the exhaust gas flowing through the exhaust pipe and the air, thereby cooling the exhaust gas. This reduces the impact of exhaust gas heat on the tubular member and, ultimately, on the battery cells inside the case. Therefore, the battery pack can be laid out in an appropriate position relative to the exhaust pipe without reducing the strength of the battery pack and while reducing the impact of exhaust gas heat on the battery cells.

本開示の一実施形態に係る電池パックにおいて、ケースのトレイからケースの蓋を取り外してケースの内部が見える状態の構成模式図である。1 is a schematic diagram illustrating the configuration of a battery pack according to an embodiment of the present disclosure, with the case lid removed from the case tray to allow the interior of the case to be seen. FIG. 本開示の一実施形態に係る電池パックのケース内での電池モジュールと筒状部材との配置を示す図である。1A and 1B are diagrams illustrating the arrangement of a battery module and a cylindrical member within a case of a battery pack according to an embodiment of the present disclosure. 本開示の別の施形態に係る電池パックの筒状部材の内部の構成を示す断面図である。FIG. 10 is a cross-sectional view showing the internal configuration of a cylindrical member of a battery pack according to another embodiment of the present disclosure. 本開示のさらに別の施形態に係る電池パックにおいて、排気管と排気管部との接続部に設けられる振動抑制部材の構成の一例を示す図である。10A and 10B are diagrams illustrating an example of the configuration of a vibration damping member provided at a connection between an exhaust pipe and an exhaust pipe section in a battery pack according to yet another embodiment of the present disclosure.

　以下、本開示の実施形態による電池パックについて、図面に基づいて説明する。以下で説明する実施形態は、本開示の一態様を示すものであり、この開示を限定するものではなく、本開示の技術的思想の範囲内で任意に変更可能である。 A battery pack according to an embodiment of the present disclosure will be described below with reference to the drawings. The embodiment described below represents one aspect of the present disclosure and does not limit the disclosure, and can be modified as desired within the scope of the technical concept of the present disclosure.

　図１に示される本開示の一実施形態に係る電池パック１は、車両に搭載される電池パックである。この車両は、エンジン及びモータを動力源とするハイブリッド自動車（ＨＶ）である。ハイブリッド自動車は、例えば、外部充電によって外部電源から充電可能、もしくは外部機器への外部給電可能なプラグインハイブリッド自動車（ＰＨＥＶ，ＰＨＶ）であるが、プラグインハイブリッド自動車に限定されるものではない。 The battery pack 1 according to one embodiment of the present disclosure shown in FIG. 1 is a battery pack mounted on a vehicle. This vehicle is a hybrid electric vehicle (HV) powered by an engine and a motor. A hybrid electric vehicle is, for example, a plug-in hybrid electric vehicle (PHEV, PHV) that can be charged from an external power source via external charging or can externally supply power to an external device, but is not limited to plug-in hybrid electric vehicles.

　電池パック１は、ケース２と、ケース２内に収容される電池モジュール５とを備えている。ケース２は、電池モジュール５が載置されるトレイ３と、電池モジュール５が載置されたトレイ３と組み合わせて電池モジュール５をケース２の内部に密封する蓋４とを備えている。図１には、電池モジュール５が２つの電池モジュール５ａ及び５ｂを含む形態が描かれているが、この形態に限定するものではなく、少なくとも１つの電池モジュールが収容されていればよい。また、ケース２内に収容されるものは、複数の電池セルから構成された電池モジュールの形態に限定するものではなく、少なくとも１つの電池セルがケース２内に収容される形態であってもよい。 Battery pack 1 comprises a case 2 and a battery module 5 housed within case 2. Case 2 comprises a tray 3 on which battery module 5 is placed, and a lid 4 which combines with tray 3 on which battery module 5 is placed to seal battery module 5 inside case 2. While Figure 1 shows battery module 5 including two battery modules 5a and 5b, this is not limited to this configuration and it is sufficient that at least one battery module is housed. Furthermore, what is housed within case 2 is not limited to a battery module made up of multiple battery cells, and at least one battery cell may be housed within case 2.

　ケース２には、ケース２を貫通するように金属製の筒状部材１０が設けられている。限定はしないが、筒状部材１０はアルミ押し出し材であってもよい。ケース２を貫通するように筒状部材１０をケース２に設けるために、電池パック１を車両に搭載する際に車両前後方向に位置するトレイ３の一対の側板３ａ，３ａと、車両前後方向に位置する蓋４の一対の側板４ａ，４ａとのそれぞれに、筒状部材１０が嵌る切り欠き３ｂ及び４ｂが形成されている。すなわち、筒状部材１０が「ケース２を貫通する」とは、筒状部材１０がケース２の外部から一対の側板３ａ，３ａのうちの一方を貫通し、ケース２内を延びてさらに、一対の側板３ａ，３ａのうちの他方を貫通してケース２の外部に延びる形態を意味する。電池パック１を車両に搭載する際に車幅方向に延びるクロスメンバー３ｄをトレイ３に設けてもよく、このようなクロスメンバー３ｄが設けられている場合には、クロスメンバー３ｄにも、筒状部材１０が嵌る切り欠き３ｅが形成される。図１には、１本のクロスメンバー３ｄが設けられている構成が記載されているが、一対の側板３ａ，３ａ間に２つ以上のクロスメンバー３ｄが設けられてもよい。その場合には、それぞれのクロスメンバー３ｄに切り欠き３ｅが形成される。 A metallic tubular member 10 is provided in the case 2 so as to penetrate the case 2. Although not limited thereto, the tubular member 10 may be extruded aluminum. In order to provide the tubular member 10 so as to penetrate the case 2, notches 3b and 4b into which the tubular member 10 fits are formed in each of a pair of side plates 3a, 3a of the tray 3, which are positioned in the fore-and-aft direction of the vehicle when the battery pack 1 is mounted on the vehicle, and a pair of side plates 4a, 4a of the lid 4, which are positioned in the fore-and-aft direction of the vehicle. In other words, the tubular member 10 "penetrating the case 2" means that the tubular member 10 penetrates one of the pair of side plates 3a, 3a from the outside of the case 2, extends inside the case 2, and further penetrates the other of the pair of side plates 3a, 3a to extend to the outside of the case 2. When the battery pack 1 is mounted on a vehicle, a cross member 3d extending in the vehicle width direction may be provided on the tray 3. If such a cross member 3d is provided, the cross member 3d also has a notch 3e formed therein into which the tubular member 10 fits. While Figure 1 shows a configuration in which one cross member 3d is provided, two or more cross members 3d may be provided between a pair of side plates 3a, 3a. In that case, a notch 3e is formed in each cross member 3d.

　筒状部材１０には、筒状部材１０の内周面１０ａ（図３参照）に接しないように排気管部１１が挿入されている。排気管部１１は、図示しないエンジンから排出された排気ガスＧが流通する排気管Ｐに接続されて、排気管Ｐの一部を構成するものである。すなわち、排気管部１１には、排気ガスＧが流通する。排気管部１１の両端部にはそれぞれ、排気管Ｐと接続するための接続部１１ａが設けられている。排気管部１１の両端部の接続部１１ａは、筒状部材１０の外部に位置している。排気管Ｐは、その途中に排気管部１１を接続させるようにするために、排気ガスＧの流れ方向に対して上流側の部分Ｐ１と下流側の部分Ｐ２とに分離されており、部分Ｐ１の下流側端部及び部分Ｐ２の上流側端部のそれぞれに、排気管部１１の両端部の接続部１１ａのそれぞれと接続されるための接続部分Ｐａが設けられている。 An exhaust pipe section 11 is inserted into the cylindrical member 10 so as not to come into contact with the inner peripheral surface 10a (see Figure 3) of the cylindrical member 10. The exhaust pipe section 11 is connected to an exhaust pipe P through which exhaust gas G emitted from an engine (not shown) flows, and constitutes part of the exhaust pipe P. In other words, exhaust gas G flows through the exhaust pipe section 11. Connection sections 11a for connecting to the exhaust pipe P are provided at both ends of the exhaust pipe section 11. The connection sections 11a at both ends of the exhaust pipe section 11 are located outside the cylindrical member 10. The exhaust pipe P is divided into an upstream section P1 and a downstream section P2 in the flow direction of the exhaust gas G so that the exhaust pipe section 11 can be connected midway through the exhaust pipe P. Connection sections Pa for connecting to the connection sections 11a at both ends of the exhaust pipe section 11 are provided at the downstream end of section P1 and the upstream end of section P2, respectively.

　筒状部材１０の両端部にはそれぞれ、筒状部材１０の両端部の開口を塞ぐように２つの封止部材１２，１３が嵌め込まれている。封止部材１２には、排気管部１１が挿入される第１貫通孔１５と、第１貫通孔１５とは異なる少なくとも１つの第２貫通孔１６とが形成されている。図１には図示されていないが、封止部材１３も、封止部材１２と同じ構成を有している。トレイ３にクロスメンバー３ｄが設けられている場合は、筒状部材１０の内部においてクロスメンバー３ｄの切り欠き３ｅの位置に、封止部材１２と同じ構成を有する封止部材１４を設けてもよい。 Two sealing members 12, 13 are fitted into both ends of the cylindrical member 10 to close the openings at both ends of the cylindrical member 10. The sealing member 12 has a first through hole 15 into which the exhaust pipe section 11 is inserted, and at least one second through hole 16 different from the first through hole 15. Although not shown in FIG. 1, the sealing member 13 has the same configuration as the sealing member 12. If a cross member 3d is provided on the tray 3, a sealing member 14 having the same configuration as the sealing member 12 may be provided inside the cylindrical member 10 at the position of the notch 3e of the cross member 3d.

　上述の構成を有する電池パック１において、ケース２を貫通するようにケース２に固定された筒状部材１０に挿入された排気管部１１が、エンジンからの排気ガスＧが流通する排気管Ｐの一部を構成するので、排気管Ｐを曲げずに電池パック１をレイアウトできる。また、筒状部材１０によりケース２の強度を向上させることができ、さらに、電池パック１が搭載された車両の走行時に、第２貫通孔１６を介して空気が筒状部材１０の内周面と排気管部１１との間を流れることにより、排気管部１１を流れる排気ガスＧと空気とが熱交換されて排気ガスＧが冷却されるので、排気ガスＧの熱が筒状部材１０に与える影響、引いてはケース２の内部の電池モジュール５に与える影響を抑制することができる。したがって、電池パック１の強度を低下させないとともに電池モジュール５に対する排気ガスＧの熱の影響を抑制しながら、排気管Ｐに対して適切な位置に電池パック１をレイアウト可能となる。 In the battery pack 1 having the above-described configuration, the exhaust pipe section 11 inserted into the tubular member 10 fixed to the case 2 so as to penetrate the case 2 constitutes part of the exhaust pipe P through which exhaust gas G from the engine flows. This allows the battery pack 1 to be laid out without bending the exhaust pipe P. The tubular member 10 also improves the strength of the case 2. Furthermore, when the vehicle equipped with the battery pack 1 is running, air flows between the inner surface of the tubular member 10 and the exhaust pipe section 11 via the second through-hole 16, resulting in heat exchange between the exhaust gas G flowing through the exhaust pipe section 11 and the air, thereby cooling the exhaust gas G. This reduces the impact of the heat of the exhaust gas G on the tubular member 10 and, ultimately, the battery module 5 inside the case 2. This allows the battery pack 1 to be laid out in an appropriate position relative to the exhaust pipe P without reducing the strength of the battery pack 1 and while reducing the impact of the heat of the exhaust gas G on the battery module 5.

　図１に記載されている電池パック１では、筒状部材１０の長さ方向に対して垂直に筒状部材１０を切断した切断面の形状は六角形であったが、この形態に限定するものではない。切断面は六角形以外の多角形であってもよいし、円形、楕円形、又は任意の形状であってもよい。封止部材１２，１３，１４のそれぞれの形状も、筒状部材１０の切断面の形状と同じとなる。筒状部材１０の切断面の形状は、次に説明する理由で六角形であることが好ましい。電池モジュール５をケース２内にできるだけ密に収容させようとすると、電池モジュール５と筒状部材１０とが接するようになる。図２に示されるように、筒状部材１０の切断面の形状が六角形であると、電池モジュール５と筒状部材１０とを接するように配置しても、電池モジュール５の外表面５ｃと筒状部材１０の外表面１０ｂとの間に隙間１７，１８が構成され、この隙間１７，１８に、電池モジュール５に接続されるケーブルを通すことができるので、電池パック１をコンパクト化できるといった作用効果が得られる。 In the battery pack 1 shown in FIG. 1, the cross section of the tubular member 10 cut perpendicularly to its length is hexagonal, but this is not limited to this shape. The cross section may be a polygon other than hexagonal, or may be circular, elliptical, or any other shape. The shape of each of the sealing members 12, 13, and 14 is the same as the cross section of the tubular member 10. The cross section of the tubular member 10 is preferably hexagonal for the reasons explained below. When attempting to fit the battery modules 5 as tightly as possible within the case 2, the battery modules 5 and the tubular member 10 come into contact with each other. As shown in FIG. 2, if the cross section of the tubular member 10 has a hexagonal shape, even when the battery modules 5 and the tubular member 10 are arranged so as to be in contact with each other, gaps 17 and 18 are formed between the outer surface 5c of the battery module 5 and the outer surface 10b of the tubular member 10. Cables connected to the battery modules 5 can be passed through these gaps 17 and 18, resulting in the advantageous effect of making the battery pack 1 more compact.

　筒状部材１０の切断面の形状と封止部材１２，１３，１４とがそれぞれ六角形である場合、封止部材１２，１３，１４はそれぞれ、第２貫通孔１６がハニカム構造を構成する形態を有することが好ましい。筒状部材１０の内周面１０ａと排気管部１１との間を流れる空気と、排気管部１１を流れる排気ガスＧとの熱交換効率を高めるためには、筒状部材１０内に多くの空気が流入するように、第２貫通孔１６の開口率を高めることが好ましいが、そうすると封止部材１２，１３，１４の強度が低下するので、ケース２の強度を向上させるという作用効果を低下させてしまうおそれがある。これに対し、第２貫通孔１６がハニカム構造を構成する形態であれば、封止部材１２，１３，１４の強度の低下を極力抑えながら、第２貫通孔１６の開口率を高めることができる。 When the cross-sectional shape of the tubular member 10 and the sealing members 12, 13, and 14 are each hexagonal, it is preferable that the second through holes 16 of each of the sealing members 12, 13, and 14 have a configuration in which the second through holes 16 form a honeycomb structure. In order to improve the heat exchange efficiency between the air flowing between the inner surface 10a of the tubular member 10 and the exhaust pipe section 11 and the exhaust gas G flowing through the exhaust pipe section 11, it is preferable to increase the aperture ratio of the second through holes 16 so that more air flows into the tubular member 10. However, doing so reduces the strength of the sealing members 12, 13, and 14, which may reduce the effectiveness of improving the strength of the case 2. In contrast, if the second through holes 16 form a honeycomb structure, it is possible to increase the aperture ratio of the second through holes 16 while minimizing the reduction in the strength of the sealing members 12, 13, and 14.

　図３に示されるように、別の実施形態に係る電池パック１では、筒状部材１０の内周面１０ａと排気管部１１の外周面１１ｂとの間に断熱材２０を設けてもよい。断熱材２０は、排気管部１１の外周面１１ｂを覆う形態の断熱材２０ａであってもよいし、筒状部材１０の内周面１０ａと排気管部１１の外周面１１ｂとの間に敷き詰められる形態の断熱材２０ｂであってもよいし、これらの組み合わせでもよい。これにより、排気ガスＧの熱が電池モジュール５に与える影響を抑制する効果をさらに高めることができる。 As shown in FIG. 3, in a battery pack 1 according to another embodiment, a heat insulating material 20 may be provided between the inner circumferential surface 10a of the tubular member 10 and the outer circumferential surface 11b of the exhaust pipe portion 11. The heat insulating material 20 may be a heat insulating material 20a that covers the outer circumferential surface 11b of the exhaust pipe portion 11, or a heat insulating material 20b that is laid between the inner circumferential surface 10a of the tubular member 10 and the outer circumferential surface 11b of the exhaust pipe portion 11, or a combination of these. This further enhances the effect of suppressing the impact of the heat of the exhaust gas G on the battery module 5.

　図４に示されるように、さらに別の実施形態に係る電池パック１では、排気管Ｐと排気管部１１とを振動抑制部材３０を介して接続してもよい。振動抑制部材３０は、排気管Ｐが振動しても、その振動を吸収して排気管部１１に伝達する振動を減衰させる機能を有するものである。このような振動抑制部材３０として、例えば、排気管Ｐの接続部分Ｐａと排気管部１１の接続部１１ａのそれぞれに挿入される接続管３１，３２と、接続管３１と接続管３２とを連結するフレキシブル管３３とを備えるものを使用することができる。このような振動抑制部材３０を介して排気管Ｐと排気管部１１とを接続すると、排気管Ｐが振動しても、フレキシブル管３３が排気管Ｐの振動に合わせて変位することにより振動が減衰するので、排気管部１１に伝わる振動を低減することができる。図４には、排気管Ｐの上流側の部分Ｐ１と排気管部１１とを振動抑制部材３０を介して接続させる形態が描かれているが、排気管Ｐの下流側の部分Ｐ２（図１参照）と排気管部１１とを振動抑制部材３０を介して接続させてもよいし、どちらか一方のみの接続を、振動抑制部材３０を介して行うようにしてもよい。 As shown in FIG. 4, in a battery pack 1 according to yet another embodiment, the exhaust pipe P and the exhaust pipe section 11 may be connected via a vibration damping member 30. The vibration damping member 30 has the function of absorbing vibrations even when the exhaust pipe P vibrates, thereby damping the vibrations transmitted to the exhaust pipe section 11. Such a vibration damping member 30 may, for example, include connecting pipes 31, 32 inserted into the connection portion Pa of the exhaust pipe P and the connection portion 11a of the exhaust pipe section 11, respectively, and a flexible pipe 33 connecting the connecting pipe 31 and the connecting pipe 32. When the exhaust pipe P and the exhaust pipe section 11 are connected via such a vibration damping member 30, even if the exhaust pipe P vibrates, the flexible pipe 33 displaces in accordance with the vibration of the exhaust pipe P, thereby damping the vibrations, thereby reducing the vibrations transmitted to the exhaust pipe section 11. Figure 4 shows a configuration in which the upstream portion P1 of the exhaust pipe P is connected to the exhaust pipe section 11 via a vibration damping member 30, but the downstream portion P2 of the exhaust pipe P (see Figure 1) may also be connected to the exhaust pipe section 11 via a vibration damping member 30, or only one of the connections may be made via a vibration damping member 30.

１　電池パック
２　ケース
５　電池モジュール（電池セル）
５ａ　電池モジュール（電池セル）
５ｂ　電池モジュール（電池セル）
１０　筒状部材
１０ａ　（筒状部材の）内周面
１１　排気管部
１２　封止部材
１３　封止部材
１５　第１貫通孔
１６　第２貫通孔
２０　断熱材
３０　振動抑制部材
Ｇ　排気ガス
Ｐ　排気管 1 Battery pack 2 Case 5 Battery module (battery cell)
5a Battery module (battery cell)
5b Battery module (battery cell)
10 Cylindrical member 10a (of cylindrical member) inner peripheral surface 11 Exhaust pipe portion 12 Sealing member 13 Sealing member 15 First through hole 16 Second through hole 20 Heat insulating material 30 Vibration suppressing member G Exhaust gas P Exhaust pipe

Claims (6)

　エンジンを有するハイブリッド車両用の電池パックであって、
　少なくとも１つの電池セルを収容するケースと、
　前記ケースを貫通するように前記ケースに固定された金属製の筒状部材と、
　前記エンジンからの排気ガスが流通する排気管の一部を構成する排気管部であって、前記筒状部材の内周面に接しないように前記筒状部材に挿入された排気管部と、
　前記筒状部材の一方の端部及び他方の端部を塞ぐように設けられた２つの封止部材であって、前記排気管部が挿入される第１貫通孔と、該第１貫通孔とは異なる少なくとも１つの第２貫通孔とが形成された２つの封止部材と
を備える電池パック。 A battery pack for a hybrid vehicle having an engine,
a case that houses at least one battery cell;
a metallic cylindrical member fixed to the case so as to pass through the case;
an exhaust pipe section that constitutes a part of an exhaust pipe through which exhaust gas from the engine flows, the exhaust pipe section being inserted into the cylindrical member so as not to come into contact with an inner peripheral surface of the cylindrical member;
A battery pack comprising two sealing members provided to close one end and the other end of the cylindrical member, the two sealing members having a first through hole through which the exhaust pipe portion is inserted and at least one second through hole different from the first through hole. 　前記筒状部材の内周面と前記排気管部の外周面との間に設けられた断熱材をさらに備える、請求項１に記載の電池パック。 The battery pack of claim 1, further comprising a heat insulating material provided between the inner circumferential surface of the tubular member and the outer circumferential surface of the exhaust pipe portion. 　前記筒状部材の長さ方向に対して垂直に前記筒状部材を切断した切断面の形状は多角形である、請求項１または２に記載の電池パック。 The battery pack of claim 1 or 2, wherein the cross section of the cylindrical member cut perpendicular to the longitudinal direction of the cylindrical member has a polygonal shape. 　前記多角形は六角形である、請求項３に記載の電池パック。 The battery pack of claim 3, wherein the polygon is a hexagon. 　前記第２貫通孔はハニカム構造を構成する、請求項４に記載の電池パック。 The battery pack of claim 4, wherein the second through holes form a honeycomb structure. 　前記排気管部の両端部のうちの少なくとも一方に設けられた振動抑制部材を備える、請求項１または２に記載の電池パック。 The battery pack of claim 1 or 2, further comprising a vibration damping member provided on at least one of the two end portions of the exhaust pipe.
PCT/JP2025/005103 2024-03-05 2025-02-17 Battery pack Pending WO2025187372A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220212721A1 (en) * 2019-05-22 2022-07-07 Bayerische Motoren Werke Aktiengesellschaft Group of Motor Vehicles With a Battery Drive Vehicle And/or a Hybrid Drive Vehicle And/or a Fuel Cell Drive Vehicle And/or an Internal Combustion Engine Drive Vehicle
CN114744330A (en) * 2022-04-06 2022-07-12 华为技术有限公司 Heat dissipation device, hybrid vehicle and heat management method
CN114937844A (en) * 2022-06-01 2022-08-23 岚图汽车科技有限公司 Battery package and vehicle
JP2023501733A (en) * 2020-04-29 2023-01-18 エルジー エナジー ソリューション リミテッド BATTERY PACK WITH IMPROVED FIXING STRUCTURE AND GAS EXHAUST STRUCTURE, AND ELECTRONIC DEVICE AND VEHICLE CONTAINING THE SAME

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220212721A1 (en) * 2019-05-22 2022-07-07 Bayerische Motoren Werke Aktiengesellschaft Group of Motor Vehicles With a Battery Drive Vehicle And/or a Hybrid Drive Vehicle And/or a Fuel Cell Drive Vehicle And/or an Internal Combustion Engine Drive Vehicle
JP2023501733A (en) * 2020-04-29 2023-01-18 エルジー エナジー ソリューション リミテッド BATTERY PACK WITH IMPROVED FIXING STRUCTURE AND GAS EXHAUST STRUCTURE, AND ELECTRONIC DEVICE AND VEHICLE CONTAINING THE SAME
CN114744330A (en) * 2022-04-06 2022-07-12 华为技术有限公司 Heat dissipation device, hybrid vehicle and heat management method
CN114937844A (en) * 2022-06-01 2022-08-23 岚图汽车科技有限公司 Battery package and vehicle

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