JP2021024518A - Vehicular battery pack - Google Patents

Vehicular battery pack Download PDF

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Publication number
JP2021024518A
JP2021024518A JP2019146739A JP2019146739A JP2021024518A JP 2021024518 A JP2021024518 A JP 2021024518A JP 2019146739 A JP2019146739 A JP 2019146739A JP 2019146739 A JP2019146739 A JP 2019146739A JP 2021024518 A JP2021024518 A JP 2021024518A
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Prior art keywords
bracket
battery case
housing
inverter
vertical wall
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JP2019146739A
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JP7338313B2 (en
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優 原田
Masaru Harada
優 原田
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Suzuki Motor Corp
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Suzuki Motor Corp
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Priority to JP2019146739A priority Critical patent/JP7338313B2/en
Priority to DE102020120551.1A priority patent/DE102020120551A1/en
Priority to HU2000260A priority patent/HU231299B1/en
Publication of JP2021024518A publication Critical patent/JP2021024518A/en
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Publication of JP7338313B2 publication Critical patent/JP7338313B2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/003—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to inverters
    • 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
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/06—Arrangement in connection with cooling of propulsion units with air cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/66—Arrangements of batteries
    • 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
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • 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
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6552—Closed pipes transferring heat by thermal conductivity or phase transition, e.g. heat pipes
    • 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
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • 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
    • 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
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular 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
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • 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
    • 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
    • B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
    • B60K2001/005—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric storage means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/52—Drive Train control parameters related to converters
    • B60L2240/525—Temperature of converter or components thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2270/00—Problem solutions or means not otherwise provided for
    • B60L2270/10—Emission reduction
    • B60L2270/14—Emission reduction of noise
    • B60L2270/145—Structure borne vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00—Other features of vehicle sub-units
    • B60Y2306/05—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/61—Arrangements of controllers for electric machines, e.g. inverters
    • 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
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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
    • H01M50/298—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the wiring of battery packs
    • 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
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Manufacturing & Machinery (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

To provide a vehicular battery pack capable of suppressing vibration of an electrical component and improving reliability of the electrical component.SOLUTION: A vehicular battery pack 10 comprises a bracket 40 for supporting an inverter 13 to a housing 30 so that the inverter is arranged in a space which is formed on a side of a battery case 20 in the housing 30 so as to be close to the battery case 20. The bracket 40 comprises: a bracket upper part 40A fixed to a top face of the battery case 20; a bracket vertical wall part 40B which is continuous to the bracket upper part 40A, and extends along a vertical wall of the battery case 20 between the inverter 13 and the vertical wall of the battery case 20; and a bracket lower part 40C which is continuous to the bracket vertical wall part 40B and faces a lower face of the inverter 13. The bracket vertical wall part 40B partitions the inverter 13 and the battery case 20 and covers a side face of the inverter 13.SELECTED DRAWING: Figure 6

Description

本発明は、車両用バッテリパックに関する。 The present invention relates to a vehicle battery pack.

自動車等の車両にあっては車両後部の荷室にバッテリが収容されることがある。従来のこの種の技術として、特許文献１に記載されるものが知られている。特許文献１には、走行用モータを駆動するためのバッテリ、ＤＣ／ＤＣコンバータおよびモータ駆動用インバータを含む電気機器をシートの後方のフロアの下方に配置し、その電気機器を冷却空気で冷却する車両における電気機器の冷却構造であって、バッテリの上部にＤＣ／ＤＣコンバータおよびモータ駆動用インバータを車幅方向に並置し、車体前方から後方に流れる冷却空気は上下に分かれ、下側のバッテリと、上側のＤＣ／ＤＣコンバータおよびモータ駆動用インバータとをパラレルに冷却する、車両における電気機器の冷却構造が開示されている。 In a vehicle such as an automobile, a battery may be accommodated in the luggage compartment at the rear of the vehicle. As a conventional technique of this kind, the one described in Patent Document 1 is known. In Patent Document 1, an electric device including a battery for driving a traveling motor, a DC / DC converter, and a motor driving inverter is arranged below the floor behind the seat, and the electric device is cooled by cooling air. It is a cooling structure for electrical equipment in a vehicle. A DC / DC converter and a motor drive inverter are placed side by side in the vehicle width direction above the battery, and the cooling air flowing from the front to the rear of the vehicle body is divided into upper and lower parts, and the lower battery Discloses a cooling structure for electrical equipment in a vehicle that cools the upper DC / DC converter and motor drive inverter in parallel.

特開２００８−６２７８０号公報Japanese Unexamined Patent Publication No. 2008-62780

しかしながら、特許文献１に記載の従来の技術にあっては、バッテリモジュールとインバータとが上下方向に重ねて配置されているため、車両の振動がバッテリモジュールを通してインバータに伝達され、インバータが上下に振動してしまうという問題があった。 However, in the conventional technique described in Patent Document 1, since the battery module and the inverter are arranged so as to be stacked in the vertical direction, the vibration of the vehicle is transmitted to the inverter through the battery module, and the inverter vibrates vertically. There was a problem of doing it.

本発明は、上記のような事情に着目してなされたものであり、電装部品が振動することを抑制でき、電装部品の信頼性を向上させることができる車両用バッテリパックを提供することを目的とするものである。 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle battery pack capable of suppressing vibration of electrical components and improving reliability of electrical components. Is to be.

本発明は、バッテリモジュールを内蔵したバッテリケースと、前記バッテリケースからの電力を変換する電装部品と、前記電装部品を冷却する空気が流通するダクトと、前記バッテリケース、前記電装部品および前記ダクトを収容するハウジングと、を有する車両用バッテリパックであって、前記電装部品を、前記ハウジング内の前記バッテリケースの側方に形成される空間内に前記バッテリケースに近接して配置されるように、前記ハウジングに支持するブラケットを備え、前記ブラケットは、前記バッテリケースの上面に固定されるブラケット上部と、前記ブラケット上部に連続し、前記電装部品と前記バッテリケースの縦壁との間で、前記バッテリケースの縦壁に沿って延びるブラケット縦壁部と、前記ブラケット縦壁部に連続し、前記電装部品の下面に対向するブラケット下部と、を有し、前記ブラケット縦壁部は、前記電装部品と前記バッテリケースとを仕切り、かつ、前記電装部品の側面を覆っていることを特徴とする。 The present invention includes a battery case containing a battery module, an electrical component that converts power from the battery case, a duct through which air for cooling the electrical component flows, and the battery case, the electrical component, and the duct. A vehicle battery pack comprising a housing and housing, such that the electrical components are arranged in close proximity to the battery case in a space formed laterally of the battery case in the housing. A bracket that supports the housing is provided, and the bracket is continuous with the upper part of the bracket fixed to the upper surface of the battery case and the upper part of the bracket, and the battery is connected between the electrical component and the vertical wall of the battery case. It has a bracket vertical wall portion extending along the vertical wall of the case, and a bracket lower portion that is continuous with the bracket vertical wall portion and faces the lower surface of the electrical component, and the bracket vertical wall portion is the electrical component. It is characterized in that it partitions the battery case and covers the side surface of the electrical component.

このように上記の本発明によれば、電装部品が振動することを抑制でき、電装部品の信頼性を向上させることができる。 As described above, according to the present invention, it is possible to suppress the vibration of the electrical component and improve the reliability of the electrical component.

図１は、本発明の一実施例に係る車両用バッテリパックの平面図である。FIG. 1 is a plan view of a vehicle battery pack according to an embodiment of the present invention. 図２は、本発明の一実施例に係る車両用バッテリパックのアッパハウジングを取り外した状態の平面図である。FIG. 2 is a plan view of the vehicle battery pack according to the embodiment of the present invention with the upper housing removed. 図３は、本発明の一実施例に係る車両用バッテリパックの車両用バッテリパックの底面図である。FIG. 3 is a bottom view of the vehicle battery pack of the vehicle battery pack according to the embodiment of the present invention. 図４は、本発明の一実施例に係る車両用バッテリパックのロアハウジングの下蓋を取り外した状態の底面図である。FIG. 4 is a bottom view of the vehicle battery pack according to the embodiment of the present invention in a state where the lower lid is removed. 図５は、本発明の一実施例に係る車両用バッテリパックのロアハウジングの下蓋およびブラケットを取り外した状態の底面図である。FIG. 5 is a bottom view of the vehicle battery pack according to the embodiment of the present invention in a state where the lower lid and the bracket are removed. 図６は、図２のＶＩ−ＶＩ方向矢視断面図である。FIG. 6 is a sectional view taken along line in the VI-VI direction of FIG. 図７は、図２のＶＩＩ−ＶＩＩ方向矢視断面図である。FIG. 7 is a cross-sectional view taken along the line VII-VII of FIG. 図８は、図２のＩＩＸ−ＩＩＸ方向矢視断面図である。FIG. 8 is a cross-sectional view taken along the line in the IIX-IIX direction of FIG. 図９は、本発明の一実施例に係る車両用バッテリパックの斜視図である。FIG. 9 is a perspective view of a vehicle battery pack according to an embodiment of the present invention.

本発明の一実施の形態に係る車両用バッテリパックは、バッテリモジュールを内蔵したバッテリケースと、バッテリケースからの電力を変換する電装部品と、電装部品を冷却する空気が流通するダクトと、バッテリケース、電装部品およびダクトを収容するハウジングと、を有する車両用バッテリパックであって、電装部品を、ハウジング内のバッテリケースの側方に形成される空間内にバッテリケースに近接して配置されるように、ハウジングに支持するブラケットを備え、ブラケットは、バッテリケースの上面に固定されるブラケット上部と、ブラケット上部に連続し、電装部品とバッテリケースの縦壁との間で、バッテリケースの縦壁に沿って延びるブラケット縦壁部と、ブラケット縦壁部に連続し、電装部品の下面に対向するブラケット下部と、を有し、ブラケット縦壁部は、電装部品とバッテリケースとを仕切り、かつ、電装部品の側面を覆っていることを特徴とする。これにより、本発明の一実施の形態に係る車両用バッテリパックは、電装部品が振動することを抑制でき、電装部品の信頼性を向上させることができる。 The vehicle battery pack according to the embodiment of the present invention includes a battery case containing a battery module, electrical components for converting power from the battery case, a duct through which air for cooling the electrical components flows, and a battery case. , A vehicle battery pack comprising a housing for accommodating electrical components and ducts, such that the electrical components are placed close to the battery case in a space formed laterally of the battery case in the housing. It is equipped with a bracket that supports the housing, and the bracket is continuous with the upper part of the bracket fixed to the upper surface of the battery case and the upper part of the bracket, and is connected to the vertical wall of the battery case between the electrical components and the vertical wall of the battery case. It has a bracket vertical wall portion extending along the bracket vertical wall portion and a bracket lower portion that is continuous with the bracket vertical wall portion and faces the lower surface of the electrical component, and the bracket vertical wall portion separates the electrical component and the battery case and provides electrical equipment. It is characterized by covering the side surface of the part. As a result, the vehicle battery pack according to the embodiment of the present invention can suppress the vibration of the electrical components and improve the reliability of the electrical components.

以下、本発明の実施例に係る車両用バッテリパックについて、図面を用いて説明する。図１から図９において、上下前後左右方向は、車両に設置された状態の車両用バッテリパックの上下前後左右方向とし、車両の前後方向に対して直交する方向が左右方向、車両用バッテリパックの高さ方向が上下方向である。 Hereinafter, the vehicle battery pack according to the embodiment of the present invention will be described with reference to the drawings. In FIGS. 1 to 9, the up / down / front / rear / left / right directions are the up / down / front / rear / left / right directions of the vehicle battery pack installed in the vehicle, and the direction orthogonal to the front / rear direction of the vehicle is the left / right direction. The height direction is the vertical direction.

図１から図９は、本発明の一実施例に係る車両用バッテリパックを示す図である。図１において、車両用バッテリパック１０は、車両１の車体２の後部のリヤフロアパネル２Ａに搭載されている。なお、リヤフロアパネル２Ａは、車体２の側面を構成するサイドパネル２Ｃと車体の後面を構成するリヤパネル２Ｄとによって荷室を形成している。 1 to 9 are views showing a vehicle battery pack according to an embodiment of the present invention. In FIG. 1, the vehicle battery pack 10 is mounted on the rear floor panel 2A at the rear of the vehicle body 2 of the vehicle 1. The rear floor panel 2A has a luggage compartment formed by a side panel 2C forming the side surface of the vehicle body 2 and a rear panel 2D forming the rear surface of the vehicle body 2.

図２、図９において、車両用バッテリパック１０は、バッテリモジュール１１を内蔵したバッテリケース２０を備えている。車両用バッテリパック１０は、バッテリモジュール１１（図６参照）からの電力を変換するインバータ１３と、バッテリモジュール１１とインバータ１３とを電気的に接続する切換部１４と、冷却ファン１２と、を備えている。車両用バッテリパック１０は、この冷却ファン１２に接続されるダクト５０を備えている。本実施例におけるインバータ１３は本発明における電装部品を構成している。なお、電装部品は、インバータ１３に限定されるものではなく、他の電装部品であってもよい。 In FIGS. 2 and 9, the vehicle battery pack 10 includes a battery case 20 containing a battery module 11. The vehicle battery pack 10 includes an inverter 13 that converts electric power from the battery module 11 (see FIG. 6), a switching unit 14 that electrically connects the battery module 11 and the inverter 13, and a cooling fan 12. ing. The vehicle battery pack 10 includes a duct 50 connected to the cooling fan 12. The inverter 13 in this embodiment constitutes an electrical component according to the present invention. The electrical components are not limited to the inverter 13, and may be other electrical components.

図６において、車両用バッテリパック１０はハウジング３０を備えており、このハウジング３０には、バッテリケース２０、インバータ１３、切換部１４およびダクト５０（図９参照）が収容されている。バッテリモジュール１１は、バッテリケース２０内で車幅方向に並べて４つ設けられている。各バッテリモジュール１１は、複数のセルを電気的に接続した組電池からなる。バッテリケース２０は、ハウジング３０における車幅方向の中央部から右側の領域に配置されている。したがって、ハウジング３０におけるバッテリケース２０の左側の領域、つまりバッテリケース２０の車幅方向の側方（左方）の領域には、インバータ１３および切換部１４を配置する空間が形成される。インバータ１３はその下面にヒートシンク等の放熱部材１３Ｂを有している。 In FIG. 6, the vehicle battery pack 10 includes a housing 30, in which the battery case 20, the inverter 13, the switching unit 14, and the duct 50 (see FIG. 9) are housed. Four battery modules 11 are provided side by side in the vehicle width direction in the battery case 20. Each battery module 11 is composed of an assembled battery in which a plurality of cells are electrically connected. The battery case 20 is arranged in the area of the housing 30 on the right side from the central portion in the vehicle width direction. Therefore, a space for arranging the inverter 13 and the switching portion 14 is formed in the area on the left side of the battery case 20 in the housing 30, that is, the area on the side (left side) of the battery case 20 in the vehicle width direction. The inverter 13 has a heat radiating member 13B such as a heat sink on its lower surface.

図２において、冷却ファン１２は、ハウジング３０の左後ろの端部の上面に配置されており、ハウジング３０の外部から取り込んだ空気をダクト５０に供給する。ダクト５０は、冷却ファン１２と接続される上流側ダクト５１と、この上流側ダクト５１の下部に連結された電装部品冷却ダクト６０およびバッテリ冷却ダクト７０を有している。電装部品冷却ダクト６０およびバッテリ冷却ダクト７０は上流側ダクト５１から分岐している。電装部品冷却ダクト６０は、上流側ダクト５１から分岐してインバータ１３に向かって前方に延びている。バッテリ冷却ダクト７０は、上流側ダクト５１から分岐してバッテリケース２０の後面に沿って右方に延びている。 In FIG. 2, the cooling fan 12 is arranged on the upper surface of the left rear end portion of the housing 30, and supplies air taken in from the outside of the housing 30 to the duct 50. The duct 50 has an upstream duct 51 connected to the cooling fan 12, an electrical component cooling duct 60 and a battery cooling duct 70 connected to the lower part of the upstream duct 51. The electrical component cooling duct 60 and the battery cooling duct 70 are branched from the upstream duct 51. The electrical component cooling duct 60 branches from the upstream duct 51 and extends forward toward the inverter 13. The battery cooling duct 70 branches from the upstream duct 51 and extends to the right along the rear surface of the battery case 20.

冷却ファン１２から上流側ダクト５１に供給された空気は、電装部品冷却ダクト６０とバッテリ冷却ダクト７０とに分岐して流れる。上流側ダクト５１から電装部品冷却ダクト６０に流れ込んだ空気はインバータ１３に供給され、インバータ１３を冷却する。上流側ダクト５１からバッテリ冷却ダクト７０に流れ込んだ空気はバッテリケース２０の後面からバッテリケース２０の内部に供給され、バッテリモジュール１１を冷却する。 The air supplied from the cooling fan 12 to the upstream duct 51 branches into the electrical component cooling duct 60 and the battery cooling duct 70 and flows. The air that has flowed from the upstream duct 51 into the electrical component cooling duct 60 is supplied to the inverter 13 to cool the inverter 13. The air that has flowed into the battery cooling duct 70 from the upstream duct 51 is supplied from the rear surface of the battery case 20 to the inside of the battery case 20 to cool the battery module 11.

図２、図９において、インバータ１３および切換部１４は、ハウジング３０のバッテリケース２０の車幅方向の側方に形成される空間内に車両前方側と車両後方側に並べて配置されている。インバータ１３は切換部１４の前方に配置されている。また、インバータ１３および切換部１４は、バスバー１５を介して互いに電気的に接続されている。 In FIGS. 2 and 9, the inverter 13 and the switching unit 14 are arranged side by side on the vehicle front side and the vehicle rear side in a space formed on the side of the battery case 20 of the housing 30 in the vehicle width direction. The inverter 13 is arranged in front of the switching unit 14. Further, the inverter 13 and the switching unit 14 are electrically connected to each other via the bus bar 15.

図９において、電装部品冷却ダクト６０は、車両前後方向に伸びる前後方向延伸ダクト６１と、インバータ１３と切換部１４との間で車幅方向に延びる傾斜ダクト６２を有している。前後方向延伸ダクト６１は切換部１４とバッテリケース２０との間に配置されている。傾斜ダクト６２は、切換部１４とインバータ１３との間に配置されている。傾斜ダクト６２は、前後方向延伸ダクト６１の前端に接続しており、前後方向延伸ダクト６１から受け取った空気を下方に下降させるように傾斜している。 In FIG. 9, the electrical component cooling duct 60 has a front-rear extension duct 61 extending in the front-rear direction of the vehicle and an inclined duct 62 extending in the vehicle width direction between the inverter 13 and the switching portion 14. The front-rear extension duct 61 is arranged between the switching portion 14 and the battery case 20. The inclined duct 62 is arranged between the switching unit 14 and the inverter 13. The inclined duct 62 is connected to the front end of the front-rear extension duct 61, and is inclined so as to lower the air received from the front-rear extension duct 61.

図６において、車両用バッテリパック１０は、インバータ１３をハウジング３０に支持するブラケット４０を備えている。ブラケット４０は、ハウジング３０内のバッテリケース２０の側方に形成される空間内にバッテリケース２０に近接して配置されるようにインバータ１３を支持している。 In FIG. 6, the vehicle battery pack 10 includes a bracket 40 that supports the inverter 13 on the housing 30. The bracket 40 supports the inverter 13 so as to be arranged close to the battery case 20 in a space formed on the side of the battery case 20 in the housing 30.

図６、図７において、ブラケット４０は、バッテリケース２０の上面に固定されるブラケット上部４０Ａと、ブラケット上部４０Ａに連続し、インバータ１３とバッテリケース２０の縦壁との間で、バッテリケース２０の縦壁に沿って延びるブラケット縦壁部４０Ｂと、を有している。 In FIGS. 6 and 7, the bracket 40 is continuous with the bracket upper portion 40A fixed to the upper surface of the battery case 20 and the bracket upper portion 40A, and is connected to the inverter 13 and the vertical wall of the battery case 20 of the battery case 20. It has a bracket vertical wall portion 40B extending along the vertical wall.

図６において、ブラケット４０は、ブラケット縦壁部４０Ｂに連続し、インバータ１３の下面に対向するブラケット下部４０Ｃを有している。ブラケット縦壁部４０Ｂは、インバータ１３とバッテリケース２０とを仕切り、かつ、インバータ１３の側面を覆っている。ブラケット４０は本発明におけるブラケットおよび第１ブラケットを構成し、ブラケット上部４０Ａは本発明におけるブラケット上部および第１ブラケット上部を構成し、ブラケット縦壁部４０Ｂは本発明におけるブラケット縦壁部および第１ブラケット縦壁部を構成し、ブラケット下部４０Ｃは本発明におけるブラケット下部および第１ブラケット下部４０Ｃを構成している。ブラケット縦壁部４０Ｂには、インバータ１３を支持するインバータ支持部４０Ｄが形成されている。インバータ支持部４０Ｄは、水平方向に延びている。このように、ブラケット縦壁部４０Ｂは、全体としては上下方向に延びる板状の形状であるが、インバータ支持部４０Ｄの部分において僅かな段差を有している。 In FIG. 6, the bracket 40 has a bracket lower portion 40C that is continuous with the bracket vertical wall portion 40B and faces the lower surface of the inverter 13. The bracket vertical wall portion 40B partitions the inverter 13 and the battery case 20 and covers the side surface of the inverter 13. The bracket 40 constitutes the bracket and the first bracket in the present invention, the bracket upper portion 40A constitutes the bracket upper portion and the first bracket upper portion in the present invention, and the bracket vertical wall portion 40B constitutes the bracket vertical wall portion and the first bracket in the present invention. The vertical wall portion is formed, and the bracket lower portion 40C constitutes the bracket lower portion and the first bracket lower portion 40C in the present invention. An inverter support portion 40D that supports the inverter 13 is formed on the bracket vertical wall portion 40B. The inverter support portion 40D extends in the horizontal direction. As described above, the bracket vertical wall portion 40B has a plate-like shape extending in the vertical direction as a whole, but has a slight step in the portion of the inverter support portion 40D.

車両用バッテリパック１０は、ハウジング３０とブラケット４０の間に配置されるブラケット４４を有している。ブラケット４４は、バッテリケース２０の下方でハウジング３０に支持される一端部４５Ａと、インバータ１３の下方でハウジング３０に支持される他端部４５Ｂと、一端部４５Ａからバッテリケース２０とインバータ１３との間の隙間に向かって、インバータ１３の放熱部材１３Ｂの下面よりも上方に突出する第１突出部４５Ｃと、他端部４５Ｂからインバータ１３の下面に向かって上方に突出し、インバータ１３とハウジング３０との問でブラケット下部４０Ｃと締結される第２突出部４５Ｄと、を有している。 The vehicle battery pack 10 has a bracket 44 arranged between the housing 30 and the bracket 40. The bracket 44 includes one end 45A supported by the housing 30 below the battery case 20, the other end 45B supported by the housing 30 below the inverter 13, and the battery case 20 and the inverter 13 from one end 45A. The first projecting portion 45C projecting upward from the lower surface of the heat radiating member 13B of the inverter 13 toward the gap between them, and the inverter 13 and the housing 30 projecting upward from the other end 45B toward the lower surface of the inverter 13. It has a second protruding portion 45D, which is fastened to the bracket lower portion 40C.

ハウジング３０は、図１に示すアッパハウジング３１と、図２に示すロアハウジング３２とを有している。アッパハウジング３１はハウジング３０の上面を構成し、ロアハウジング３２はハウジング３０の側面および底面を構成している。図３において、ロアハウジング３２は、ブラケット３２Ｂを、このブラケット３２Ｂにより支持される底板３２Ａを備えている。図４、図５に示すように、ハウジング３０の底部にはバッテリモジュール１１が配置されている。バッテリモジュール１１は前後方向に長辺を有する直方体に形成されている。バッテリモジュール１１は、車幅方向に並べて配置されている。 The housing 30 has an upper housing 31 shown in FIG. 1 and a lower housing 32 shown in FIG. The upper housing 31 constitutes the upper surface of the housing 30, and the lower housing 32 constitutes the side surface and the bottom surface of the housing 30. In FIG. 3, the lower housing 32 includes a bracket 32B and a bottom plate 32A supported by the bracket 32B. As shown in FIGS. 4 and 5, the battery module 11 is arranged at the bottom of the housing 30. The battery module 11 is formed in a rectangular parallelepiped having long sides in the front-rear direction. The battery modules 11 are arranged side by side in the vehicle width direction.

図２において、ロアハウジング３２の車幅方向の端部の上端には接合面３０Ａが設けられている。ロアハウジング３２は、接合面３０Ａを介してアッパハウジング３１と連結されている。車両用バッテリパック１０はプレート部材４２を備えており、プレート部材４２は、インバータ１３の上方を横切るように配置されている。また、プレート部材４２は、接合面３０Ａとバッテリケース２０とをプレート部材４２により連絡している。 In FIG. 2, a joint surface 30A is provided at the upper end of the end portion of the lower housing 32 in the vehicle width direction. The lower housing 32 is connected to the upper housing 31 via a joint surface 30A. The vehicle battery pack 10 includes a plate member 42, and the plate member 42 is arranged so as to cross above the inverter 13. Further, the plate member 42 connects the joint surface 30A and the battery case 20 by the plate member 42.

図８において、インバータ１３は、基板が格納される基板部１３Ｃと、基板部１３Ｃの上面に配置され上方に突出する電力貯蔵部１３Ｄと、を有している。電力貯蔵部１３Ｄはインバータ１３の一端部（後端部）に配置されている。プレート部材４２は、電力貯蔵部１３Ｄの上面に沿って延びる第１プレート部４２Ａと、基板部１３Ｃの上面に沿って延びる第２プレート部４２Ｂと、第１プレート部４２Ａと第２プレート部４２Ｂの間に上下方向の段差を形成する段差部４２Ｃと、を有している。 In FIG. 8, the inverter 13 has a substrate portion 13C in which the substrate is stored, and a power storage portion 13D arranged on the upper surface of the substrate portion 13C and projecting upward. The power storage unit 13D is arranged at one end (rear end) of the inverter 13. The plate member 42 includes a first plate portion 42A extending along the upper surface of the power storage portion 13D, a second plate portion 42B extending along the upper surface of the substrate portion 13C, and a first plate portion 42A and a second plate portion 42B. It has a step portion 42C that forms a step in the vertical direction between them.

図２において、ダクト５０の傾斜ダクト６２は、第１プレート部４２Ａの第２プレート部４２Ｂと反対側の側面に対向する対向部６２Ａを有しており、この対向部６２Ａは、第１プレート部４２Ａおよび電力貯蔵部１３Ｄのバッテリケース２０に近接する部位を側方から覆っている。 In FIG. 2, the inclined duct 62 of the duct 50 has a facing portion 62A facing the side surface of the first plate portion 42A opposite to the second plate portion 42B, and the facing portion 62A is the first plate portion. The portion of the 42A and the power storage unit 13D close to the battery case 20 is covered from the side.

以上説明したように、本実施例では、インバータ１３は、ハウジング３０内のバッテリケース２０の側方に形成される空間内にバッテリケース２０に近接して配置されるように、ハウジング３０に支持するブラケット４０を備えている。ブラケット４０は、バッテリケース２０の上面に固定されるブラケット上部４０Ａと、ブラケット上部４０Ａに連続し、インバータ１３とバッテリケース２０の縦壁との間で、バッテリケース２０の縦壁に沿って延びるブラケット縦壁部４０Ｂと、ブラケット縦壁部４０Ｂに連続し、インバータ１３の下面に対向するブラケット下部４０Ｃと、を有している。そして、ブラケット縦壁部４０Ｂは、インバータ１３とバッテリケース２０とを仕切り、かつ、インバータ１３の側面を覆っている。 As described above, in the present embodiment, the inverter 13 is supported by the housing 30 so as to be arranged close to the battery case 20 in the space formed on the side of the battery case 20 in the housing 30. It includes a bracket 40. The bracket 40 is a bracket that is continuous with the bracket upper portion 40A fixed to the upper surface of the battery case 20 and the bracket upper portion 40A, and extends along the vertical wall of the battery case 20 between the inverter 13 and the vertical wall of the battery case 20. It has a vertical wall portion 40B and a bracket lower portion 40C that is continuous with the bracket vertical wall portion 40B and faces the lower surface of the inverter 13. The bracket vertical wall portion 40B partitions the inverter 13 and the battery case 20 and covers the side surface of the inverter 13.

これにより、バッテリケース２０に近接してインバータ１３を配置した場合であっても、バッテリケース２０の発生する熱をブラケット縦壁部４０Ｂにより遮蔽でき、インバータ１３がバッテリケース２０からの熱の影響を受けることを抑制できる。このため、インバータ１３の高温による動作性能の低下や寿命の低下を防止することができ、インバータ１３の信頼性を確保することができる。 As a result, even when the inverter 13 is arranged close to the battery case 20, the heat generated by the battery case 20 can be shielded by the bracket vertical wall portion 40B, and the inverter 13 is affected by the heat from the battery case 20. You can suppress receiving. Therefore, it is possible to prevent the operation performance and the life of the inverter 13 from being lowered due to the high temperature, and the reliability of the inverter 13 can be ensured.

また、ブラケット上部４０Ａをバッテリケース２０の上面に固定することにより、バッテリケース２０に対するブラケット４０の取付面積を拡大でき、ブラケット４０を安定してバッテリケース２０に保持させることができる。このため、ブラケット４０によりインバータ１３を安定して保持することができるため、インバータ１３の振動を抑制することができる。したがって、振動によりインバータ１３の動作性能が低下することを抑制でき、インバータ１３の信頼性を向上させることができる。 Further, by fixing the upper portion 40A of the bracket to the upper surface of the battery case 20, the mounting area of the bracket 40 with respect to the battery case 20 can be expanded, and the bracket 40 can be stably held in the battery case 20. Therefore, since the inverter 13 can be stably held by the bracket 40, the vibration of the inverter 13 can be suppressed. Therefore, it is possible to suppress the deterioration of the operating performance of the inverter 13 due to vibration, and it is possible to improve the reliability of the inverter 13.

また、ブラケット下部４０Ｃがインバータ１３の下面に対向するように形成されているため、バッテリケース２０の熱がインバータ１３の下側からインバータ１３に直接入り込むことを抑制し、インバータ１３への熱害を低減させることができるため、インバータ１３の信頼性を向上させることができる。 Further, since the bracket lower portion 40C is formed so as to face the lower surface of the inverter 13, the heat of the battery case 20 is suppressed from directly entering the inverter 13 from the lower side of the inverter 13, and the heat damage to the inverter 13 is prevented. Since it can be reduced, the reliability of the inverter 13 can be improved.

本実施例では、ハウジング３０とブラケット４０の間に配置されるブラケット４４を有し、ブラケット４４は、バッテリケース２０の下方でハウジング３０に支持される一端部４５Ａと、インバータ１３の下方でハウジング３０に支持される他端部４５Ｂと、一端部４５Ａからバッテリケース２０とインバータ１３との間の隙間に向かって、インバータ１３の下面よりも上方に突出する第１突出部４５Ｃと、他端部４５Ｂからインバータ１３の下面に向かって上方に突出し、インバータ１３とハウジング３０との問でブラケット下部４０Ｃと締結される第２突出部４５Ｄと、を有する。 In this embodiment, a bracket 44 is provided between the housing 30 and the bracket 40, and the bracket 44 has one end 45A supported by the housing 30 below the battery case 20 and the housing 30 below the inverter 13. The other end 45B supported by the inverter, the first protrusion 45C protruding upward from the lower surface of the inverter 13 toward the gap between the battery case 20 and the inverter 13 from the one end 45A, and the other end 45B. It has a second protruding portion 45D that protrudes upward from the inverter 13 toward the lower surface of the inverter 13 and is fastened to the bracket lower portion 40C in question between the inverter 13 and the housing 30.

これにより、バッテリケース２０からの発熱がインバータ１３の下側に潜り込むことをブラケット４４の第１突出部４５Ｃにより防止できる。バッテリケース２０からインバータ１３に熱が伝わり難くなるため、インバータ１３の動作性能や寿命の低下を防止することができ、インバータ１３の信頼性を向上させることができる。 As a result, the heat generated from the battery case 20 can be prevented from sneaking into the lower side of the inverter 13 by the first protruding portion 45C of the bracket 44. Since heat is less likely to be transferred from the battery case 20 to the inverter 13, it is possible to prevent a decrease in the operating performance and life of the inverter 13 and improve the reliability of the inverter 13.

また、ブラケット４４が第２突出部４５Ｄによりブラケット４０の下部を支持できるため、ブラケット４０で支持されるインバータ１３に生じる車両の振動等をブラケット４０およびブラケット４４に分散でき、インバータ１３を安定してハウジング３０内に支持させることができる。 Further, since the bracket 44 can support the lower portion of the bracket 40 by the second protrusion 45D, the vibration of the vehicle generated in the inverter 13 supported by the bracket 40 can be dispersed to the bracket 40 and the bracket 44, and the inverter 13 can be stabilized. It can be supported in the housing 30.

本実施例では、ハウジング３０は、アッパハウジング３１と、アッパハウジング３１と接合面３０Ａを介して連結されるロアハウジング３２と、を有し、インバータ１３の上方を横切るように接合面３０Ａとバッテリケース２０とをプレート部材４２により連絡している。 In this embodiment, the housing 30 has an upper housing 31 and a lower housing 32 connected to the upper housing 31 via a joint surface 30A, and has a joint surface 30A and a battery case so as to cross above the inverter 13. 20 is connected by a plate member 42.

これにより、プレート部材４２により、インバータ１３を支持するブラケット４０およびハウジング３０が車両の振動やバッテリケース２０の振動によって変形したり歪みを生じたりすることを抑制できる。つまり、剛性の高いバッテリケース２０やハウジング３０の接合面３０Ａに懸架されるようにプレート部材４２が設けられているので、プレート部材４２の変形を抑制できる。 As a result, the plate member 42 can prevent the bracket 40 and the housing 30 that support the inverter 13 from being deformed or distorted by the vibration of the vehicle or the vibration of the battery case 20. That is, since the plate member 42 is provided so as to be suspended on the joint surface 30A of the battery case 20 and the housing 30 having high rigidity, the deformation of the plate member 42 can be suppressed.

このため、インバータ１３をプレート部材４２の下側で安定した状態で保持でき、インバータ１３が車両の振動やハウジング３０の歪みなどに大きく影響を受けることを防止できるため、インバータ１３の動作性能や寿命等の信頼性を向上させることができる。 Therefore, the inverter 13 can be held in a stable state under the plate member 42, and the inverter 13 can be prevented from being greatly affected by the vibration of the vehicle or the distortion of the housing 30, so that the operating performance and life of the inverter 13 can be prevented. Etc. can be improved in reliability.

また、プレート部材４２がインバータ１３の上方を横切るように配置されているため、バッテリケース２０からインバータ１３の上面へ熱が直接伝わろうとする熱をプレート部材４２により遮ることができる。これにより、インバータ１３への熱害を低減でき、インバータ１３の動作性能や寿命が低下することを防止でき、インバータ１３の信頼性を向上させることができる。 Further, since the plate member 42 is arranged so as to cross above the inverter 13, the plate member 42 can block the heat that is about to be directly transferred from the battery case 20 to the upper surface of the inverter 13. As a result, heat damage to the inverter 13 can be reduced, it is possible to prevent the operating performance and life of the inverter 13 from being lowered, and the reliability of the inverter 13 can be improved.

本実施例では、インバータ１３は、基板が格納される基板部１３Ｃと、基板部１３Ｃの上面に配置され上方に突出する電力貯蔵部１３Ｄと、を有する。また、プレート部材４２は、電力貯蔵部１３Ｄの上面に沿って延びる第１プレート部４２Ａと、基板部１３Ｃの上面に沿って延びる第２プレート部４２Ｂと、第１プレート部４２Ａと第２プレート部４２Ｂの間に上下方向の段差を形成する段差部４２Ｃと、を有している。 In this embodiment, the inverter 13 has a substrate portion 13C in which the substrate is stored, and a power storage portion 13D arranged on the upper surface of the substrate portion 13C and projecting upward. Further, the plate member 42 includes a first plate portion 42A extending along the upper surface of the power storage portion 13D, a second plate portion 42B extending along the upper surface of the substrate portion 13C, and a first plate portion 42A and a second plate portion. It has a step portion 42C that forms a step in the vertical direction between the 42B.

これにより、段差部４２Ｃを設けたことによりプレート部材４２の剛性を向上させることができ、プレート部材４２が車両の振動やハウジング３０の振動によって変形しようとした場合であっても、プレート部材４２が容易に変形することを抑制できる。 As a result, the rigidity of the plate member 42 can be improved by providing the step portion 42C, and even if the plate member 42 tries to be deformed by the vibration of the vehicle or the vibration of the housing 30, the plate member 42 can be deformed. Deformation can be suppressed easily.

また、プレート部材４２がインバータ１３の基板部１３Ｃと電力貯蔵部１３Ｄの上面に沿う形状に形成されているため、第１プレート部４２Ａとインバータ１３との間の隙間や第２プレート部４２Ｂと基板部１３Ｃの上面との間の隙間が大きくなることを防止でき、バッテリケース２０で発生した熱がプレート部材４２とインバータ１３との間の隙間に流れ込むことを抑制でき、インバータ１３を熱から保護することができる。 Further, since the plate member 42 is formed in a shape along the upper surface of the substrate portion 13C of the inverter 13 and the power storage portion 13D, the gap between the first plate portion 42A and the inverter 13 and the gap between the second plate portion 42B and the substrate are formed. It is possible to prevent the gap between the upper surface of the portion 13C from becoming large, prevent the heat generated in the battery case 20 from flowing into the gap between the plate member 42 and the inverter 13, and protect the inverter 13 from heat. be able to.

本実施例では、インバータ１３の一端部に電力貯蔵部１３Ｄが配置されている。また、ダクト５０は、第１プレート部４２Ａの第２プレート部４２Ｂと反対側の側面に対向する対向部６２Ａを有し、対向部６２Ａは、第１プレート部４２Ａおよび電力貯蔵部１３Ｄのバッテリケース２０に近接する部位を側方から覆っている。 In this embodiment, the power storage unit 13D is arranged at one end of the inverter 13. Further, the duct 50 has a facing portion 62A facing the side surface of the first plate portion 42A opposite to the second plate portion 42B, and the facing portion 62A is a battery case of the first plate portion 42A and the power storage portion 13D. The part close to 20 is covered from the side.

これにより、バッテリケース２０で発生した熱がインバータ１３側に流れた場合であっても、第１プレート部４２Ａにより上方からインバータ１３側へ流れることを抑制できる。バッテリケース２０から第１プレート部４２Ａの上方から電力貯蔵部へ流れる熱を第１プレート部４２Ａで遮蔽できる。 As a result, even when the heat generated in the battery case 20 flows to the inverter 13 side, the first plate portion 42A can suppress the heat from flowing from above to the inverter 13 side. The heat flowing from the battery case 20 to the power storage unit from above the first plate portion 42A can be shielded by the first plate portion 42A.

また、ダクト５０の対向部６２Ａにより、第１プレート部４２Ａの下方のインバータ１３の後端側を塞いだ状態となるので、バッテリケース２０で発生した熱が第１プレート部４２Ａとインバータ１３の隙間から流れ込むことをダクト５０の対向部６２Ａにより遮蔽できる。 Further, since the rear end side of the inverter 13 below the first plate portion 42A is blocked by the facing portion 62A of the duct 50, the heat generated in the battery case 20 is the gap between the first plate portion 42A and the inverter 13. The flow from the duct 50 can be shielded by the facing portion 62A of the duct 50.

詳しくは、電力貯蔵部１３Ｄには電力を貯留する平滑コンデンサが含まれており、コンデンサは熱の影響を受けることによりその動作性能が低下するおそれがある。そこで、第１プレート部４２Ａと対向部６２Ａとによりバッテリケース２０で発生した熱を遮蔽することにより、電力貯蔵部１３Ｄの動作性能が低下することを抑制でき、インバータ１３の信頼性を向上させることができる。 Specifically, the power storage unit 13D includes a smoothing capacitor for storing power, and the capacitor may be affected by heat to deteriorate its operating performance. Therefore, by shielding the heat generated in the battery case 20 by the first plate portion 42A and the facing portion 62A, it is possible to suppress the deterioration of the operating performance of the power storage unit 13D and improve the reliability of the inverter 13. Can be done.

本発明の実施例を開示したが、当業者によっては本発明の範囲を逸脱することなく変更が加えられうることは明白である。すべてのこのような修正および等価物が次の請求項に含まれることが意図されている。 Although the embodiments of the present invention have been disclosed, it is clear that some skilled in the art can make changes without departing from the scope of the present invention. All such modifications and equivalents are intended to be included in the following claims.

１...車両、１０...車両用バッテリパック、１１...バッテリモジュール、１３...インバータ（電装部品）、１３Ｃ...基板部、１３Ｄ...電力貯蔵部、２０...バッテリケース、３０...ハウジング、３０Ａ...接合面、３１...アッパハウジング、３２...ロアハウジング、４０...ブラケット（ブラケット、第１ブラケット）、４０Ａ...ブラケット上部、４０Ｂ...ブラケット縦壁部、４０Ｃ...ブラケット下部、４２...プレート部材、４２Ａ...第１プレート部、４２Ｂ...第２プレート部、４２Ｃ...段差部、４４...ブラケット（第２ブラケット）、４５Ａ...一端部、４５Ｂ...他端部、４５Ｃ...第１突出部、４５Ｄ...第１突出部、５０...ダクト、５１...上流側ダクト、６２Ａ...対向部 1 ... Vehicle, 10 ... Battery pack for vehicle, 11 ... Battery module, 13 ... Inverter (electrical component), 13C ... Board part, 13D ... Power storage part, 20 .. Battery case, 30 ... housing, 30A ... joint surface, 31 ... upper housing, 32 ... lower housing, 40 ... bracket (bracket, first bracket), 40A ... bracket upper part , 40B ... Bracket vertical wall part, 40C ... Bracket lower part, 42 ... Plate member, 42A ... 1st plate part, 42B ... 2nd plate part, 42C ... Step part, 44 ... bracket (second bracket), 45A ... one end, 45B ... other end, 45C ... first protrusion, 45D ... first protrusion, 50 ... duct, 51 ... upstream duct, 62A ... facing

Claims (5)

バッテリモジュールを内蔵したバッテリケースと、
前記バッテリケースからの電力を変換する電装部品と、
前記電装部品を冷却する空気が流通するダクトと、
前記バッテリケース、前記電装部品および前記ダクトを収容するハウジングと、を有する車両用バッテリパックであって、
前記電装部品を、前記ハウジング内の前記バッテリケースの側方に形成される空間内に前記バッテリケースに近接して配置されるように、前記ハウジングに支持するブラケットを備え、
前記ブラケットは、
前記バッテリケースの上面に固定されるブラケット上部と、
前記ブラケット上部に連続し、前記電装部品と前記バッテリケースの縦壁との間で、前記バッテリケースの縦壁に沿って延びるブラケット縦壁部と、
前記ブラケット縦壁部に連続し、前記電装部品の下面に対向するブラケット下部と、を有し、
前記ブラケット縦壁部は、前記電装部品と前記バッテリケースとを仕切り、かつ、前記電装部品の側面を覆っていることを特徴とする車両用バッテリパック。 A battery case with a built-in battery module and
Electrical components that convert power from the battery case and
A duct through which air that cools the electrical components flows, and
A vehicle battery pack comprising the battery case, the electrical components, and a housing for accommodating the duct.
A bracket that supports the housing is provided so that the electrical components are arranged close to the battery case in a space formed on the side of the battery case in the housing.
The bracket
The upper part of the bracket fixed to the upper surface of the battery case and
A bracket vertical wall portion that is continuous with the upper portion of the bracket and extends along the vertical wall of the battery case between the electrical component and the vertical wall of the battery case.
It has a bracket lower portion that is continuous with the bracket vertical wall portion and faces the lower surface of the electrical component.
The vertical wall portion of the bracket is a vehicle battery pack that partitions the electrical component and the battery case and covers the side surface of the electrical component. 前記ブラケットを第１ブラケットとし、前記ブラケット上部を第１ブラケット上部とし、前記ブラケット縦壁部を第１ブラケット縦壁部とし、前記ブラケット下部を第１ブラケット下部としたとき、
前記ハウジングと前記第１ブラケットの間に配置される第２ブラケットを有し、
前記第２ブラケットは、
前記バッテリケースの下方で前記ハウジングに支持される一端部と、
前記電装部品の下方で前記ハウジングに支持される他端部と、
前記一端部から前記バッテリケースと前記電装部品との間の隙間に向かって、前記電装部品の下面よりも上方に突出する第１突出部と、
前記他端部から前記電装部品の下面に向かって上方に突出し、前記電装部品と前記ハウジングとの問で前記第１ブラケット下部と締結される第２突出部と、を有することを特徴とする請求項１に記載の車両用バッテリパック。 When the bracket is the first bracket, the upper part of the bracket is the upper part of the first bracket, the vertical wall portion of the bracket is the vertical wall portion of the first bracket, and the lower part of the bracket is the lower part of the first bracket.
It has a second bracket that is located between the housing and the first bracket.
The second bracket is
One end supported by the housing below the battery case,
The other end supported by the housing below the electrical components,
A first protruding portion that projects upward from the lower surface of the electrical component from one end toward the gap between the battery case and the electrical component.
A claim characterized by having a second protruding portion that protrudes upward from the other end toward the lower surface of the electrical component and is fastened to the lower portion of the first bracket in question of the electrical component and the housing. Item 1. The vehicle battery pack according to item 1. 前記ハウジングは、アッパハウジングと、前記アッパハウジングと接合面を介して連結されるロアハウジングと、を有し、
前記電装部品の上方を横切るように前記接合面と前記バッテリケースとをプレート部材により連絡したことを特徴とする請求項１または請求項２に記載の車両用バッテリパック。 The housing has an upper housing and a lower housing connected to the upper housing via a joint surface.
The vehicle battery pack according to claim 1 or 2, wherein the joint surface and the battery case are connected by a plate member so as to cross above the electrical components. 前記電装部品は、基板が格納される基板部と、前記基板部の上面に配置され上方に突出する電力貯蔵部と、を有し、
前記プレート部材は、前記電力貯蔵部の上面に沿って延びる第１プレート部と、前記基板部の上面に沿って延びる第２プレート部と、前記第１プレート部と前記第２プレート部の間に上下方向の段差を形成する段差部と、を有することを特徴とする請求項３に記載の車両用バッテリパック。 The electrical component has a substrate portion in which the substrate is stored and a power storage portion arranged on the upper surface of the substrate portion and projecting upward.
The plate member is formed between a first plate portion extending along the upper surface of the power storage portion, a second plate portion extending along the upper surface of the substrate portion, and the first plate portion and the second plate portion. The vehicle battery pack according to claim 3, further comprising a stepped portion forming a stepped portion in the vertical direction. 前記電装部品の一端部に前記電力貯蔵部が配置され、
前記ダクトは、前記第１プレート部の前記第２プレート部と反対側の側面に対向する対向部を有し、
前記対向部は、前記第１プレート部および前記電力貯蔵部の前記バッテリケースに近接する部位を側方から覆っていることを特徴とする請求項４に記載の車両用バッテリパック。 The power storage unit is arranged at one end of the electrical component,
The duct has a facing portion facing the side surface of the first plate portion opposite to the second plate portion.
The vehicle battery pack according to claim 4, wherein the facing portion covers a portion of the first plate portion and the power storage portion close to the battery case from the side.
JP2019146739A 2019-08-08 2019-08-08 vehicle battery pack Active JP7338313B2 (en)

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DE102020120551.1A DE102020120551A1 (en) 2019-08-08 2020-08-04 VEHICLE BATTERY KIT
HU2000260A HU231299B1 (en) 2019-08-08 2020-08-07 Vehicle battery pack

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DE102020120551A1 (en) 2021-02-11
HUP2000260A1 (en) 2021-07-28

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