JP2019192486A - Power storage unit - Google Patents

Power storage unit Download PDF

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Publication number
JP2019192486A
JP2019192486A JP2018083943A JP2018083943A JP2019192486A JP 2019192486 A JP2019192486 A JP 2019192486A JP 2018083943 A JP2018083943 A JP 2018083943A JP 2018083943 A JP2018083943 A JP 2018083943A JP 2019192486 A JP2019192486 A JP 2019192486A
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Prior art keywords
power storage
storage unit
substrate
heat
heat transfer
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Inventor
龍之介 村岡
Ryunosuke MURAOKA
龍之介 村岡
佑樹 杉沢
Yuki Sugisawa
佑樹 杉沢
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Application filed by Sumitomo Wiring Systems Ltd, AutoNetworks Technologies Ltd, Sumitomo Electric Industries Ltd filed Critical Sumitomo Wiring Systems Ltd
Priority to JP2018083943A priority Critical patent/JP2019192486A/en
Priority to PCT/JP2019/015296 priority patent/WO2019208185A1/en
Publication of JP2019192486A publication Critical patent/JP2019192486A/en
Pending legal-status Critical Current

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    • 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
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • 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
    • B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
    • 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
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in 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
    • B60L55/00—Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
    • 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
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric 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
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • 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
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/643—Cylindrical cells
    • 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
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • 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
    • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
    • 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
    • H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
    • H01M10/667—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an electronic component, e.g. a CPU, an inverter or a capacitor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from 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
    • 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
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

To suppress degradation in the performance of a power storage section at a low temperature with a simple configuration.SOLUTION: A power storage unit 10 includes: a power storage section 21; a circuit board 50 capable of discharge control of the power storage section 21; a heating component 55 mounted on the circuit board 50 and arranged on the power storage section 21 in a heat transfer manner.SELECTED DRAWING: Figure 2

Description

本明細書では、蓄電ユニットに関する技術を開示する。   In this specification, the technique regarding an electrical storage unit is disclosed.

従来、低温時の性能低下を抑制可能な蓄電ユニットが知られている。特許文献１は、リチウム二次電池のバッテリーパック内部に加熱用ヒータを内蔵している。リチウム二次電池は低温時の充電効率が低いため、温度が低い場合には、加熱用ヒータにより所定の温度まで加熱するように構成されている。   Conventionally, a power storage unit capable of suppressing performance degradation at a low temperature is known. In Patent Document 1, a heater for heating is built in a battery pack of a lithium secondary battery. Since the lithium secondary battery has low charging efficiency at a low temperature, when the temperature is low, the lithium secondary battery is configured to be heated to a predetermined temperature by a heater.

特開平１０−２８４１３３号公報Japanese Patent Laid-Open No. 10-284133

ところで、特許文献１の構成では、低温時にリチウム二次電池を加熱するためのヒータが必要であるため、ヒータの分だけ部品点数が多くなってバッテリーパックが大型化するとともに、回路構成が複雑になるという問題がある。   By the way, in the structure of patent document 1, since the heater for heating a lithium secondary battery at low temperature is required, while the number of parts increases by the amount of a heater and a battery pack enlarges, a circuit structure is complicated. There is a problem of becoming.

本明細書に記載された技術は、上記のような事情に基づいて完成されたものであって、簡素な構成で低温時における蓄電部の性能低下を抑制しつつ大型化を防ぐことを目的とする。   The technology described in the present specification has been completed based on the above-described circumstances, and aims to prevent an increase in size while suppressing a decrease in performance of the power storage unit at a low temperature with a simple configuration. To do.

本明細書に記載された蓄電ユニットは、蓄電部と、前記蓄電部の放電制御が可能な基板と、前記基板に実装され、前記蓄電部に対して伝熱的に配された発熱部品と、を備える。
本構成によれば、発熱部品の熱が蓄電部に伝わることで、蓄電部を加熱するためのヒータを設けなくても発熱部品の熱で蓄電部を加熱することができるため、簡素な構成で低温時における蓄電部の性能低下を抑制しつつ大型化を防ぐことが可能になる。 The power storage unit described in the present specification includes a power storage unit, a substrate capable of controlling discharge of the power storage unit, a heat generating component mounted on the substrate and arranged in a heat transfer manner with respect to the power storage unit, Is provided.
According to this configuration, since the heat of the heat generating component is transmitted to the power storage unit, the power storage unit can be heated with the heat of the heat generating component without providing a heater for heating the power storage unit. It is possible to prevent an increase in size while suppressing a decrease in performance of the power storage unit at low temperatures.

本明細書に記載された技術の実施態様としては以下の態様が好ましい。
前記発熱部品と前記蓄電部との間に配されて前記発熱部品の熱を前記蓄電部に伝える伝熱材を備える。
このようにすれば、発熱部品の熱は、伝熱材を介して蓄電部に伝えることができる。 The following embodiments are preferable as the embodiments of the technology described in this specification.
A heat transfer material is provided between the heat generating component and the power storage unit and transmits heat of the heat generating component to the power storage unit.
If it does in this way, the heat of exothermic parts can be transmitted to an electrical storage part via a heat transfer material.

前記伝熱材は、前記基板と前記蓄電部との間に充填されている。
このようにすれば、基板と蓄電部との間の熱伝導性を向上させることができる。 The heat transfer material is filled between the substrate and the power storage unit.
If it does in this way, the thermal conductivity between a board | substrate and an electrical storage part can be improved.

前記基板と前記蓄電部との間を仕切り、前記蓄電部の位置を保持する保持部材を備え、前記保持部材には、前記伝熱材を受ける凹部が形成されている。
このようにすれば、保持部材により蓄電部の位置を保持しつつ、伝熱材を介して発熱部品の熱を蓄電部に伝えることが可能になる。 A holding member that partitions the substrate and the power storage unit and holds the position of the power storage unit is provided, and the holding member has a recess that receives the heat transfer material.
If it does in this way, it will become possible to transmit the heat | fever of a heat-emitting component to an electrical storage part via a heat transfer material, hold | maintaining the position of an electrical storage part with a holding member.

前記基板には、複数の前記発熱部品が実装され、前記伝熱材は、複数の前記発熱部品及び前記複数の蓄電部に接触している。
このようにすれば、伝熱材を介して複数の発熱部品の熱を複数の蓄電部に効率的に伝えることができる。 A plurality of the heat generating components are mounted on the substrate, and the heat transfer material is in contact with the plurality of heat generating components and the plurality of power storage units.
If it does in this way, the heat of a plurality of exothermic parts can be efficiently transmitted to a plurality of electrical storage parts via a heat transfer material.

前記基板及び前記蓄電部を収容するユニットケースを備え、前記ユニットケースは、前記基板に対して空間を空けて対向する対向部と、前記基板と前記対向部との間に空間を空けた状態で前記基板を支持する支持部とを備える。
このようにすれば、ユニットケースの対向部と基板との間の空間により、基板の熱が対向部を介して外部に放熱されにくいため、発熱部品の熱のユニットケース外への放熱を抑制して蓄電部の加熱に利用することができる。 A unit case that accommodates the substrate and the power storage unit, the unit case being opposed to the substrate with a space therebetween, and a space between the substrate and the facing unit; And a support part for supporting the substrate.
In this way, the space between the opposing part of the unit case and the board prevents the heat of the board from being radiated to the outside through the opposing part, so the heat of the heat-generating component is prevented from radiating outside the unit case. Thus, it can be used for heating the power storage unit.

前記蓄電部は、車両の主電源からの電力の供給を受けており、前記発熱部品は、前記主電源と前記蓄電部との間の電力供給経路に配される抵抗である。
このようにすれば、主電源から蓄電部への電力供給の際の突入電流を抑制するために必然的に配されるプリチャージ抵抗の熱を蓄電部の加熱に利用することができる。 The power storage unit is supplied with electric power from a main power source of the vehicle, and the heat generating component is a resistor arranged in a power supply path between the main power source and the power storage unit.
If it does in this way, the heat of the pre-charge resistor necessarily arranged in order to suppress the inrush current at the time of power supply from the main power supply to the power storage unit can be used for heating the power storage unit.

複数の前記蓄電部が前記基板における前記発熱部品の搭載面に沿って並んで配されている   The plurality of power storage units are arranged side by side along the mounting surface of the heat generating component on the substrate.

本明細書に記載された技術によれば、簡素な構成で低温時における蓄電部の性能低下を抑制しつつ大型化を防ぐことが可能になる。   According to the technology described in the present specification, it is possible to prevent an increase in size while suppressing a decrease in performance of the power storage unit at a low temperature with a simple configuration.

実施形態の蓄電ユニットを示す分解斜視図Exploded perspective view showing a power storage unit of an embodiment Ｙ−Ｚ平面の蓄電ユニットを示す断面図Sectional drawing which shows the electrical storage unit of a YZ plane Ｘ−Ｚ平面の蓄電ユニットを示す断面図Sectional drawing which shows the electrical storage unit of a XZ plane 車両における主電源から蓄電ユニットを介して負荷に至る経路の電気的構成を示す図The figure which shows the electrical constitution of the path | route from the main power supply in a vehicle to a load via an electrical storage unit.

＜実施形態＞
実施形態を図１〜図４を参照しつつ説明する。
蓄電ユニット１０は、例えば、電気自動車やハイブリット自動車等の車両のバッテリ等からなる主電源Ｂとランプ等の車載電装品や駆動モータ等からなる負荷Ｌとの間の電力供給経路に配され、例えば、エンジンのアイドルストップ時や主電源Ｂの失陥時等における補助電源として用いることができる。以下では、図１のＸ方向を前方、Ｙ方向を左方、Ｚ方向を上方として説明する。 <Embodiment>
An embodiment will be described with reference to FIGS.
The power storage unit 10 is arranged in a power supply path between a main power source B composed of a battery of a vehicle such as an electric vehicle or a hybrid vehicle and a load L composed of an in-vehicle electrical component such as a lamp or a drive motor, for example. It can be used as an auxiliary power source when the engine is idle stopped or when the main power source B fails. In the following description, the X direction in FIG. 1 is described as the front, the Y direction as the left, and the Z direction as the upper.

蓄電ユニット１０は、図２に示すように、複数の蓄電素子２１（「蓄電部」の一例）と基板５０とが一体的に組み付けられるユニット本体２０と、ユニット本体２０を収容するユニットケース１１とを備える。ユニットケース１１は、合成樹脂製又は金属製であって、ロアケース１１Ａとアッパーケース１１Ｂとを組み合わせて構成される。ロアケース１１Ａは、平板状の底板部１２Ａと、底板部１２Ａの周縁部から上方に角筒状に延びる周壁１６Ａとを備える。底板部１２Ａは、長方形状であって、上面の中心部に円柱状の凸部１３が形成されており、凸部１３の先端とユニット本体２０の下面との間には、隙間が形成されている。   As shown in FIG. 2, the power storage unit 10 includes a unit main body 20 in which a plurality of power storage elements 21 (an example of “power storage unit”) and a substrate 50 are assembled together, and a unit case 11 that houses the unit main body 20. Is provided. The unit case 11 is made of synthetic resin or metal, and is configured by combining a lower case 11A and an upper case 11B. The lower case 11A includes a flat bottom plate portion 12A and a peripheral wall 16A extending upward in a rectangular tube shape from the peripheral edge portion of the bottom plate portion 12A. The bottom plate portion 12A has a rectangular shape, and a cylindrical convex portion 13 is formed at the center of the upper surface, and a gap is formed between the tip of the convex portion 13 and the lower surface of the unit body 20. Yes.

図１，図３に示すように、ロアケース１１Ａの内側の角部（周壁１６Ａの角部の内側に隣接する位置）には、基板５０をネジ留めするための複数の支持部１４が底板部１２Ａから突設されている。複数の支持部１４の上面は、基板５０の高さ位置に応じた所定の高さに形成されており、上面の中心部にはネジ孔１４Ａが形成されている。周壁１６Ａの外面には、複数の係止突部１７が形成されている。   As shown in FIGS. 1 and 3, a plurality of support portions 14 for screwing the substrate 50 are provided at the corners on the inner side of the lower case 11A (positions adjacent to the corners of the peripheral wall 16A). Projected from. The upper surfaces of the plurality of support portions 14 are formed at a predetermined height corresponding to the height position of the substrate 50, and a screw hole 14A is formed at the center of the upper surface. A plurality of locking projections 17 are formed on the outer surface of the peripheral wall 16A.

アッパーケース１１Ｂは、基板５０に対して空間を空けて対向する長方形の平板状の対向部１２Ｂと、対向部１２Ｂの周縁部から下方に延びる周壁１６Ｂとを備える。周壁１６Ｂには、ロアケース１１Ａの係止突部１７に係止する撓み変形可能な枠状の被係止部１８が設けられている。被係止部１８は、撓み変形可能であって、周壁１６Ａの下端部から下方に突出しており、長方形状の係止孔１８Ａが貫通形成されている。周壁１６Ａは、コネクタ５３が導出される導出部１６Ｃが切り欠かれている。   The upper case 11B includes a rectangular flat plate-like facing portion 12B facing the substrate 50 with a space therebetween, and a peripheral wall 16B extending downward from the peripheral edge of the facing portion 12B. The peripheral wall 16B is provided with a frame-like locked portion 18 that can be bent and deformed and locked to the locking protrusion 17 of the lower case 11A. The locked portion 18 can be bent and deformed, protrudes downward from the lower end portion of the peripheral wall 16A, and has a rectangular locking hole 18A formed therethrough. The peripheral wall 16 </ b> A has a cutout portion 16 </ b> C from which the connector 53 is led out.

ユニット本体２０は、複数（本実施形態では６個）の蓄電素子２１と、複数の蓄電素子２１が収容される素子収容部材３０と、導電路が形成された基板５０と、複数の蓄電素子２１と基板５０との間に配される伝熱材５８と、を備える。   The unit body 20 includes a plurality of (six in this embodiment) power storage elements 21, an element housing member 30 that houses the plurality of power storage elements 21, a substrate 50 on which a conductive path is formed, and a plurality of power storage elements 21. And a heat transfer material 58 disposed between the substrate 50 and the substrate 50.

複数の蓄電素子２１は、主電源Ｂに対する補助電源として用いられ、例えばキャパシタとされ、左右方向に一列に並んで配されており、内部に図示しない蓄電要素が収容された円柱状の蓄電本体２２と、蓄電本体２２の軸方向の一方の端面から突出する正負一対のリード端子２３とを備える。各リード端子２３は、基板５０側に屈曲されている。   The plurality of power storage elements 21 are used as auxiliary power supplies for the main power supply B and are, for example, capacitors, arranged in a line in the left-right direction, and a cylindrical power storage body 22 in which power storage elements (not shown) are accommodated. And a pair of positive and negative lead terminals 23 projecting from one end face in the axial direction of the power storage body 22. Each lead terminal 23 is bent toward the substrate 50 side.

素子収容部材３０は、合成樹脂製又は金属製であって、複数の蓄電素子２１の下方側を覆うロアカバー部３１と、ロアカバー部３１に装着されて複数の蓄電素子２１の上方側を覆い、複数の蓄電素子２１の位置を保持する保持部材４０とを備える。ロアカバー部３１は、図２に示すように、各蓄電素子２１が載置される円弧状の複数の載置部３２が左右方向に並んで設けられている。各載置部３２には、図３に示すように、蓄電素子２１の外周面を押さえる押さえ片３３が設けられている。押さえ片３３は、各載置部３２毎に前後一対、弾性変形可能に設けられており、それぞれ自然状態では載置部３２の底面から斜め上方に片持ち状に延びており、蓄電素子２１が載置部３２に載置された状態で下方に弾性変形し、弾性反発力により各蓄電素子２１を上方側に押さえる。   The element housing member 30 is made of synthetic resin or metal, and includes a lower cover portion 31 that covers the lower side of the plurality of power storage elements 21 and a lower cover portion 31 that covers the upper side of the plurality of power storage elements 21. And a holding member 40 that holds the position of the power storage element 21. As shown in FIG. 2, the lower cover portion 31 is provided with a plurality of arcuate placement portions 32 on which the respective storage elements 21 are placed side by side in the left-right direction. As shown in FIG. 3, each mounting portion 32 is provided with a pressing piece 33 that presses the outer peripheral surface of the storage element 21. The holding pieces 33 are provided in a pair of front and rear portions so as to be elastically deformable for each mounting portion 32, and extend in a cantilevered manner obliquely upward from the bottom surface of the mounting portion 32 in the natural state. While being placed on the placement portion 32, it is elastically deformed downward, and each storage element 21 is pressed upward by an elastic repulsive force.

ロアカバー部３１は、保持部材４０のカバー係止部４６に係止される被係止枠３４を備えている。被係止枠３４は、撓み変形可能な板状であって、長方形状の被係止孔３４Ａが貫通形成されている。被係止孔３４Ａの孔縁が保持部材４０の外面に突設されたカバー係止部４６に係止されることにより保持部材４０に対してロアカバー部３１が組み付けられた状態に保持される。   The lower cover portion 31 includes a locked frame 34 that is locked to the cover locking portion 46 of the holding member 40. The locked frame 34 has a plate shape that can be bent and deformed, and a rectangular locked hole 34A is formed therethrough. The lower cover portion 31 is held in a state in which the lower cover portion 31 is assembled to the holding member 40 by locking the hole edge of the locked hole 34 </ b> A to the cover locking portion 46 protruding from the outer surface of the holding member 40.

保持部材４０は、図１，図２に示すように、多数の矩形状の領域に区画する壁部４１と、左右に隣り合う壁部４１間を円弧状に連ね、各蓄電素子２１の外周面に嵌合する複数の嵌合部４３とを備える。壁部４１は、保持部材４０の外周に設けられた外周壁４１Ａと、外周壁４１Ａの内側に設けられた仕切壁４１Ｂとを有する。仕切壁４１Ｂは、隣り合う蓄電素子２１間を仕切るように設けられるとともに、前後方向（蓄電素子２１の軸方向）についても複数（本実施形態では３つ）の領域に仕切るように設けられている。   As shown in FIGS. 1 and 2, the holding member 40 is formed by connecting a wall portion 41 partitioned into a large number of rectangular regions and a wall portion 41 adjacent to the left and right in an arc shape. And a plurality of fitting portions 43 to be fitted. The wall portion 41 includes an outer peripheral wall 41A provided on the outer periphery of the holding member 40 and a partition wall 41B provided on the inner side of the outer peripheral wall 41A. The partition wall 41 </ b> B is provided so as to partition between the adjacent power storage elements 21, and is also provided so as to partition into a plurality of (three in this embodiment) regions in the front-rear direction (the axial direction of the power storage elements 21). .

各嵌合部４３は、半円筒形状であって、壁部４１が包囲する領域ごとに、貫通孔４４（「凹部」の一例）が形成されている。各貫通孔４４は、壁部４１内の領域において嵌合部４３を長方形状に切り欠いて形成されている。外周壁４１Ａの外面には、ロアカバー部３１に係止する複数のカバー係止部４６と、ネジ留めするための複数の留め部４７Ａ，４７Ｂとが形成されている。各カバー係止部４６は、外周壁４１Ａの外面に対して外方に段差状に突出し、下方に向けて傾斜状に突出寸法が小さくなっている。   Each fitting portion 43 has a semicylindrical shape, and a through hole 44 (an example of a “concave portion”) is formed for each region surrounded by the wall portion 41. Each through-hole 44 is formed by cutting out the fitting portion 43 into a rectangular shape in a region within the wall portion 41. On the outer surface of the outer peripheral wall 41A, a plurality of cover locking portions 46 that are locked to the lower cover portion 31 and a plurality of fastening portions 47A and 47B for screwing are formed. Each cover locking portion 46 protrudes outward in a stepped shape with respect to the outer surface of the outer peripheral wall 41A, and has a protruding size that is inclined downward.

各留め部４７Ａ，４７Ｂは、外周壁４１Ａに対して外方に板状に突出しており、ネジ５９，６０の軸部を挿通可能なネジ孔４８が貫通形成されている。外周壁４１Ａの外面の下部に設けられる留め部４７Ａは、ロアケース１１Ａとのネジ留めに用いられる。外周壁４１Ａの外面の上部に設けられる留め部４７Ｂは、基板５０とのネジ留めに用いられる。また、保持部材４０の中心部には、基板５０とのネジ留めに用いられるネジ孔４８が形成された留め部４７Ｃが設けられている。   Each fastening portion 47A, 47B protrudes outward in a plate shape with respect to the outer peripheral wall 41A, and a screw hole 48 through which the shaft portion of the screws 59, 60 can be inserted is formed. The fastening portion 47A provided at the lower portion of the outer surface of the outer peripheral wall 41A is used for screwing with the lower case 11A. The fastening portion 47B provided on the upper portion of the outer surface of the outer peripheral wall 41A is used for screwing with the substrate 50. In addition, a fastening portion 47 </ b> C in which a screw hole 48 used for screwing with the substrate 50 is formed at the center of the holding member 40.

基板５０は、絶縁板に導電路のパターンが印刷されたプリント基板からなり、導電路に連なるスルーホール５１と、ネジ５９の軸部が挿通されるネジ孔５２とが貫通形成されている。スルーホール５１は、リード端子２３が挿通された状態で半田付けされる。基板５０の左方側の端部には、コネクタ５３が取り付けられている。コネクタ５３は、合成樹脂製のハウジング５３Ａと、ハウジング５３Ａを貫通し、基板５０の導電路に半田付け等により接続される図示しないコネクタ端子を備える。この基板５０内には、負荷Ｌの駆動電流等の比較的大電流が通電する電力回路と負荷Ｌ等の動作を制御する比較的小電流の制御回路とが形成されている。基板５０の上面や下面等に設けられる制御回路は、蓄電素子２１の充放電制御が可能とされており、ＩＣ(Integrated Circuit)等の電子部品が半田付けされている。基板５０の下面（搭載面）の電力回路（導電路）は、プリチャージ抵抗５５（「発熱部品」の一例）やリレー等の電子部品が半田付けされている。なお、プリント基板に対して銅、銅合金等の金属板材からなるバスバーを重ねて基板を構成してもよい。   The substrate 50 is made of a printed circuit board in which a conductive path pattern is printed on an insulating plate, and a through hole 51 connected to the conductive path and a screw hole 52 through which a shaft portion of a screw 59 is inserted are formed. The through hole 51 is soldered with the lead terminal 23 inserted. A connector 53 is attached to the left end of the substrate 50. The connector 53 includes a synthetic resin housing 53A and a connector terminal (not shown) that penetrates the housing 53A and is connected to a conductive path of the substrate 50 by soldering or the like. In the substrate 50, a power circuit through which a relatively large current such as a driving current of the load L is supplied and a control circuit having a relatively small current for controlling the operation of the load L and the like are formed. A control circuit provided on the upper surface, lower surface, or the like of the substrate 50 is capable of charge / discharge control of the storage element 21, and electronic components such as an IC (Integrated Circuit) are soldered. The power circuit (conductive path) on the lower surface (mounting surface) of the substrate 50 is soldered with electronic components such as a precharge resistor 55 (an example of “heat generating component”) and a relay. In addition, you may comprise a board | substrate by overlapping the bus bar which consists of metal plate materials, such as copper and copper alloy, with respect to a printed circuit board.

伝熱材５８は、基板５０と、蓄電素子２１との間に充填されている。本実施形態では、
保持部材４０の各壁部４１内の空間を埋めるように充填されており、嵌合部４３の貫通孔４４内にも充填されている。伝熱材５８としては、例えば、放熱グリス、ゲル、接着剤、粘着シート、合成樹脂、金属等とすることができる。放熱グリスとしては、例えば、シリコーングリスなどの熱伝導性が高く、絶縁性を有する材料を用いることができる。伝熱材５８は、粘性を有していてもよいが、粘性を有さず、固形化された部材であってもよい。組み付け後に常温で硬化する常温硬化型や、組み付け後に加熱により硬化する加熱硬化型の伝熱材５８を用いてもよい。 The heat transfer material 58 is filled between the substrate 50 and the power storage element 21. In this embodiment,
The holding member 40 is filled so as to fill the space in each wall portion 41, and the through hole 44 of the fitting portion 43 is also filled. As the heat transfer material 58, for example, heat radiation grease, gel, adhesive, pressure-sensitive adhesive sheet, synthetic resin, metal, or the like can be used. As the heat dissipation grease, for example, a material having high thermal conductivity such as silicone grease and having insulating properties can be used. The heat transfer material 58 may have viscosity, but may not be viscous and may be a solidified member. A room temperature curing type that cures at room temperature after assembly or a heat curing type heat transfer material 58 that cures by heating after assembly may be used.

蓄電ユニット１０の電気的構成について図４を参照しつつ説明する。
蓄電ユニット１０は、図４に示すように、主電源Ｂに接続される入力端子６１と、負荷Ｌに接続される出力端子６２と、入力端子６１と出力端子６２との間に接続され、メインスイッチ６３Ａを有する主給電路６３と、主給電路６３に並列に接続され、サブスイッチ６４Ａを有する副給電路６４とを備える。メインスイッチ６３Ａは、主電源Ｂの電圧異常等によりオフされる。副給電路６４には、プリチャージ抵抗５５とサブスイッチ６４Ａとが直列に接続されてプリチャージ回路を構成している。プリチャージ抵抗５５は、蓄電素子２１を介して接地されており、メインスイッチ６３Ａのオン時には、プリチャージ抵抗５５により蓄電素子２１への突入電流が抑制される。 The electrical configuration of the power storage unit 10 will be described with reference to FIG.
As shown in FIG. 4, the power storage unit 10 is connected between an input terminal 61 connected to the main power source B, an output terminal 62 connected to the load L, and between the input terminal 61 and the output terminal 62. A main power supply path 63 having a switch 63A and a sub power supply path 64 connected in parallel to the main power supply path 63 and having a sub switch 64A are provided. The main switch 63A is turned off due to a voltage abnormality of the main power supply B or the like. A precharge resistor 55 and a sub switch 64A are connected in series to the sub power feed path 64 to form a precharge circuit. The precharge resistor 55 is grounded via the power storage element 21. When the main switch 63A is turned on, the inrush current to the power storage element 21 is suppressed by the precharge resistor 55.

蓄電ユニット１０の製造方法について説明する。
複数の蓄電素子２１を保持部材４０とロアカバー部３１との間に配し（図１参照）、保持部材４０とロアカバー部３１とを組み合わせて複数の蓄電素子２１を素子収容部材３０内に収容する。また、例えば、基板５０に例えば表面実装型のコネクタ５３を取付けるとともに、リフロー半田付けにより、基板５０にプリチャージ抵抗５５等の電子部品を実装する。 A method for manufacturing the power storage unit 10 will be described.
The plurality of power storage elements 21 are arranged between the holding member 40 and the lower cover part 31 (see FIG. 1), and the plurality of power storage elements 21 are accommodated in the element housing member 30 by combining the holding member 40 and the lower cover part 31. . Further, for example, a surface mount type connector 53 is attached to the substrate 50, and an electronic component such as a precharge resistor 55 is mounted on the substrate 50 by reflow soldering.

次に基板５０におけるプリチャージ抵抗５５が実装された側の面の全体に所定の厚みで例えば放熱グリスからなる伝熱材５８を塗布する。なお、保持部材４０の基板５０側の面に伝熱材５８を塗布してもよい。次に、複数の蓄電素子２１のリード端子２３を基板５０のスルーホール５１に挿通しつつ、素子収容部材３０（及び複数の蓄電素子２１）を基板５０に載置する。このとき、伝熱材５８は、基板５０と素子収容部材３０（及び複数の蓄電素子２１）との間に押し潰されて変形し、基板５０と素子収容部材３０（及び複数の蓄電素子２１）との間の空間に充填され、貫通孔４４を通り、蓄電素子２１に接した状態となる。   Next, a heat transfer material 58 made of, for example, heat radiation grease is applied to the entire surface of the substrate 50 on which the precharge resistor 55 is mounted with a predetermined thickness. The heat transfer material 58 may be applied to the surface of the holding member 40 on the substrate 50 side. Next, the element housing member 30 (and the plurality of storage elements 21) are placed on the substrate 50 while the lead terminals 23 of the plurality of storage elements 21 are inserted through the through holes 51 of the substrate 50. At this time, the heat transfer material 58 is crushed and deformed between the substrate 50 and the element housing member 30 (and the plurality of power storage elements 21), and the substrate 50 and the element housing member 30 (and the plurality of power storage elements 21). Is filled with the space between and through the through hole 44 and is in contact with the power storage element 21.

次に、素子収容部材３０を基板５０に対してネジ５９でネジ留めする。これにより、複数の蓄電素子２１及び素子収容部材３０が基板５０に対して固定される。次に、例えば、フロー半田付けにより、複数の蓄電素子２１の各リード端子２３をスルーホール５１に接続することにより、ユニット本体２０が形成される。   Next, the element housing member 30 is screwed to the substrate 50 with screws 59. Thereby, the plurality of power storage elements 21 and the element housing member 30 are fixed to the substrate 50. Next, the unit main body 20 is formed by connecting the lead terminals 23 of the plurality of power storage elements 21 to the through holes 51 by, for example, flow soldering.

次に、ユニット本体２０をロアケース１１Ａに収容し、保持部材４０の留め部４７Ａをロアケース１１Ａの支持部１４にネジ６０でネジ留めする。次に、アッパーケース１１Ｂをロアケース１１Ａに被せ、アッパーケース１１Ｂの被係止部１８がロアケース１１Ａの係止突部１７に係止されると、蓄電ユニット１０が形成される。   Next, the unit main body 20 is accommodated in the lower case 11A, and the fastening portion 47A of the holding member 40 is screwed to the support portion 14 of the lower case 11A with a screw 60. Next, when the upper case 11B is put on the lower case 11A and the locked portion 18 of the upper case 11B is locked to the locking protrusion 17 of the lower case 11A, the power storage unit 10 is formed.

本実施形態の作用、効果について説明する。
蓄電ユニット１０は、プリチャージ抵抗５５（発熱部品）が実装された基板５０と、基板５０に対して間隔を空けて配された蓄電素子２１（蓄電部）と、プリチャージ抵抗５５と蓄電素子２１との間に配されてプリチャージ抵抗５５の熱を蓄電素子２１に伝える伝熱材５８とを備える。
本実施形態によれば、プリチャージ抵抗５５の熱が伝熱材５８を介して蓄電素子２１に伝わることで、蓄電素子２１を加熱するためのヒータを設けなくてもプリチャージ抵抗５５の熱で蓄電素子２１を加熱することができるため、簡素な構成で低温時における蓄電素子２１の性能低下を抑制しつつ大型化を防ぐことが可能になる。 The operation and effect of this embodiment will be described.
The power storage unit 10 includes a substrate 50 on which a precharge resistor 55 (heat-generating component) is mounted, a power storage element 21 (power storage unit) arranged with a space from the substrate 50, a precharge resistor 55, and a power storage element 21. And a heat transfer material 58 for transferring the heat of the precharge resistor 55 to the power storage element 21.
According to the present embodiment, the heat of the precharge resistor 55 is transmitted to the power storage element 21 via the heat transfer material 58, so that the heat of the precharge resistor 55 can be obtained without providing a heater for heating the power storage element 21. Since the power storage element 21 can be heated, it is possible to prevent an increase in size while suppressing a decrease in performance of the power storage element 21 at a low temperature with a simple configuration.

また、伝熱材５８は、基板５０と蓄電素子２１との間に充填されている。
このようにすれば、基板５０と蓄電素子２１との間の熱伝導性を向上させることができる。 Further, the heat transfer material 58 is filled between the substrate 50 and the power storage element 21.
In this way, the thermal conductivity between the substrate 50 and the power storage element 21 can be improved.

また、基板５０と蓄電素子２１との間を仕切り、蓄電素子２１の位置を保持する保持部材４０を備え、保持部材４０には、伝熱材５８を通す貫通孔４４が形成されている。
このようにすれば、保持部材４０により蓄電素子２１の位置を保持しつつ、伝熱材５８を介してプリチャージ抵抗５５の熱を蓄電素子２１に伝えることが可能になる。 The holding member 40 that partitions the substrate 50 and the power storage element 21 and holds the position of the power storage element 21 is provided. The holding member 40 has a through hole 44 through which the heat transfer material 58 passes.
In this way, it is possible to transfer the heat of the precharge resistor 55 to the power storage element 21 via the heat transfer material 58 while holding the position of the power storage element 21 by the holding member 40.

また、基板５０、蓄電素子２１及び伝熱材５８を収容するユニットケース１１を備え、ユニットケース１１は、基板５０に対して空間Ｓを空けて対向する対向部１２Ｂと、基板５０と対向部１２Ｂとの間に空間Ｓを空けた状態で基板５０を支持する支持部１４とを備える。
このようにすれば、ユニットケース１１の対向部１２Ｂと基板５０との間の空間Ｓにより、基板５０の熱が対向部１２Ｂを介して外部に放熱されにくいため、プリチャージ抵抗５５の熱のユニットケース１１外への放熱を抑制して蓄電素子２１の加熱に利用することができる。 In addition, a unit case 11 that accommodates the substrate 50, the power storage element 21, and the heat transfer material 58 is provided. The unit case 11 is opposed to the substrate 50 with a space S therebetween and opposed to the substrate 50. And a support portion 14 that supports the substrate 50 with a space S therebetween.
In this way, the space S between the facing portion 12B of the unit case 11 and the substrate 50 makes it difficult for the heat of the substrate 50 to be radiated to the outside via the facing portion 12B. Heat dissipation to the outside of the case 11 can be suppressed and used for heating the power storage element 21.

また、蓄電素子２１は、車両の主電源Ｂからの電力の供給を受けており、発熱部品は、主電源Ｂと蓄電素子２１との間の副給電路６４（電力供給経路）に配されるプリチャージ抵抗５５である。
このようにすれば、主電源Ｂから蓄電素子２１への電力供給の際の突入電流を抑制するために必然的に配されるプリチャージ抵抗５５の熱を蓄電素子２１の加熱に利用することができる。 In addition, the power storage element 21 is supplied with electric power from the main power supply B of the vehicle, and the heat generating component is arranged in a sub-feeding path 64 (power supply path) between the main power supply B and the power storage element 21. This is a precharge resistor 55.
In this way, the heat of the precharge resistor 55 inevitably disposed in order to suppress the inrush current when supplying power from the main power supply B to the storage element 21 can be used for heating the storage element 21. it can.

また、複数の蓄電素子２１が基板５０の板面に沿って並んで配されており、基板５０には、複数のプリチャージ抵抗５５が実装され、伝熱材５８は、複数のプリチャージ抵抗５５及び複数の蓄電素子２１に接触している。
このようにすれば、伝熱材５８を介して複数のプリチャージ抵抗５５の熱を複数の蓄電素子２１に効率的に伝えることができる。 A plurality of power storage elements 21 are arranged along the plate surface of the substrate 50, a plurality of precharge resistors 55 are mounted on the substrate 50, and the heat transfer material 58 is a plurality of precharge resistors 55. The plurality of power storage elements 21 are in contact with each other.
In this way, the heat of the plurality of precharge resistors 55 can be efficiently transmitted to the plurality of power storage elements 21 via the heat transfer material 58.

＜他の実施形態＞
本明細書に記載された技術は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本明細書に記載された技術の技術的範囲に含まれる。
（１）蓄電素子２１は、素子収容部材３０に収容される構成としたが、これに限られず、素子収容部材３０を有さず、蓄電素子２１が伝熱材５８に対して直接的に載置（密着）されている構成としてもよい。 <Other embodiments>
The technology described in the present specification is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the technology described in the present specification.
(1) The power storage element 21 is housed in the element housing member 30, but is not limited thereto, and does not have the element housing member 30, and the power storage element 21 is mounted directly on the heat transfer material 58. It is good also as a structure currently set | placed (contact | adhered).

（２）伝熱材５８は、基板５０と蓄電素子２１との間に隙間なく充填されている構成としたが、発熱部品と蓄電素子２１との間に隙間や他の部材が介在し、伝熱材５８が充填されていない部分を有していてもよい。 (2) Although the heat transfer material 58 is configured to be filled without a gap between the substrate 50 and the power storage element 21, a gap or other member is interposed between the heat generating component and the power storage element 21, so You may have the part which is not filled with the heat material 58. FIG.

（３）基板５０に実装される発熱部品は、プリチャージ抵抗５５としたが、これに限られず、例えば、プリチャージ抵抗５５以外の抵抗、ＦＥＴ（Field Effect Transistor）等のリレー、コイル、コンデンサ、ＩＣ(Integrated Circuit)等の電子部品としてもよい。 (3) Although the heat generating component mounted on the substrate 50 is the precharge resistor 55, it is not limited to this. For example, a resistor other than the precharge resistor 55, a relay such as an FET (Field Effect Transistor), a coil, a capacitor, It may be an electronic component such as an IC (Integrated Circuit).

（４）蓄電素子２１は、円筒形状としたが、これに限られず、例えば、外周形状が角筒状（直方体状）等の多角形状としてもよい。
（５）蓄電ユニット１０を車両等に搭載する際の向きは、上記実施形態の向きに限られず、種々の向きで配置することができる。 (4) The power storage element 21 has a cylindrical shape, but is not limited thereto. For example, the outer peripheral shape may be a polygonal shape such as a rectangular tube (cuboid).
(5) The direction of mounting the power storage unit 10 on a vehicle or the like is not limited to the direction of the above-described embodiment, and can be arranged in various directions.

（６）蓄電素子２１は、キャパシタとしたが、これに限られない。例えばリチウムイオン二次電池等の電池としてもよい。また、蓄電素子２１の数は、上記実施形態の数に限られず、適宜変更することができる。
（７）保持部材４０に貫通孔４４を形成したが、これに限られない。例えば、貫通孔４４に代えて貫通していない凹部を設けてもよい。 (6) The storage element 21 is a capacitor, but is not limited thereto. For example, a battery such as a lithium ion secondary battery may be used. Moreover, the number of the electrical storage elements 21 is not restricted to the number of the said embodiment, It can change suitably.
(7) Although the through hole 44 is formed in the holding member 40, the present invention is not limited to this. For example, a recess that does not penetrate may be provided instead of the through hole 44.

（８）プリチャージ抵抗５５等の発熱部品と、蓄電素子２１との間は、伝熱材５８を介して伝熱的に配置される構成としたが、これに限られない。例えば、伝熱材５８を有さず、プリチャージ抵抗５５等の発熱部品と、蓄電素子２１との間が伝熱的に配置される構成（発熱部品の熱が蓄電素子２１に伝わる位置関係）としてもよい。
（９）蓄電素子２１と、蓄電素子２１を覆う図示しないカバーとを含んで蓄電部を構成し、このカバーを介して、プリチャージ抵抗５５等の発熱部品の熱が蓄電素子２１に伝わるようにしてもよい。 (8) Although the heat-generating component such as the precharge resistor 55 and the power storage element 21 are arranged in a heat transfer manner via the heat transfer material 58, the invention is not limited thereto. For example, a configuration in which the heat transfer material 58 is not provided and the heat generating component such as the precharge resistor 55 and the power storage element 21 are disposed in a heat transfer manner (positional relationship in which heat of the heat generating component is transmitted to the power storage element 21). It is good.
(9) The power storage unit is configured to include the power storage element 21 and a cover (not shown) that covers the power storage element 21, and heat of a heat-generating component such as the precharge resistor 55 is transmitted to the power storage element 21 through this cover. May be.

１０： 蓄電ユニット
１１： ユニットケース
１２Ｂ： 対向部
１４： 支持部
２０： ユニット本体
２１： 蓄電素子（蓄電部）
２２： 蓄電本体
２３： リード端子
３０： 素子収容部材
３１： ロアカバー部
３２： 載置部
４０： 保持部材
４３： 嵌合部
４４： 貫通孔
５０： 基板
５１： スルーホール
５５： プリチャージ抵抗（発熱部品）
５６： プリチャージリレー
５８： 伝熱材
Ｂ： 電源
Ｌ： 負荷 10: Power storage unit 11: Unit case 12B: Opposing part 14: Support part 20: Unit body 21: Power storage element (power storage part)
22: Power storage body 23: Lead terminal 30: Element housing member 31: Lower cover part 32: Placement part 40: Holding member 43: Fitting part 44: Through hole 50: Substrate 51: Through hole 55: Precharge resistor (heat-generating component) )
56: Precharge relay 58: Heat transfer material B: Power supply L: Load

Claims (8)

蓄電部と、
前記蓄電部の放電制御が可能な基板と、
前記基板に実装され、前記蓄電部に対して伝熱的に配された発熱部品と、を備える蓄電ユニット。 A power storage unit;
A substrate capable of controlling discharge of the power storage unit;
A heat storage unit comprising: a heat generating component mounted on the substrate and arranged in a heat transfer manner with respect to the power storage unit. 前記発熱部品と前記蓄電部との間に配されて前記発熱部品の熱を前記蓄電部に伝える伝熱材を備える請求項１に記載の蓄電ユニット。 The power storage unit according to claim 1, further comprising a heat transfer material that is disposed between the heat generating component and the power storage unit and transmits heat of the heat generating component to the power storage unit. 前記伝熱材は、前記基板と前記蓄電部との間に充填されている請求項２に記載の蓄電ユニット。 The power storage unit according to claim 2, wherein the heat transfer material is filled between the substrate and the power storage unit. 前記基板と前記蓄電部との間を仕切り、前記蓄電部の位置を保持する保持部材を備え、
前記保持部材には、前記伝熱材を受ける凹部が形成されている請求項２又は請求項３に記載の蓄電ユニット。 Partitioning between the substrate and the power storage unit, comprising a holding member for holding the position of the power storage unit,
The power storage unit according to claim 2 or 3, wherein the holding member has a recess for receiving the heat transfer material. 前記基板には、複数の前記発熱部品が実装され、
前記伝熱材は、複数の前記発熱部品及び前記複数の蓄電部に接触している請求項２から請求項４のいずれか一項に記載の蓄電ユニット。 A plurality of the heat generating components are mounted on the substrate,
The power storage unit according to any one of claims 2 to 4, wherein the heat transfer material is in contact with the plurality of heat generating components and the plurality of power storage units. 前記基板及び前記蓄電部を収容するユニットケースを備え、
前記ユニットケースは、前記基板に対して空間を空けて対向する対向部と、前記基板と前記対向部との間に空間を空けた状態で前記基板を支持する支持部とを備える請求項１から請求項５のいずれか一項に記載の蓄電ユニット。 A unit case for housing the substrate and the power storage unit;
The unit case includes a facing portion that faces the substrate with a space, and a support portion that supports the substrate with a space between the substrate and the facing portion. The power storage unit according to claim 5. 前記蓄電部は、車両の主電源からの電力の供給を受けており、
前記発熱部品は、前記主電源と前記蓄電部との間の電力供給経路に配される抵抗である請求項１から請求項６のいずれか一項に記載の蓄電ユニット。 The power storage unit is supplied with power from a main power source of the vehicle,
The power storage unit according to any one of claims 1 to 6, wherein the heat generating component is a resistor arranged in a power supply path between the main power source and the power storage unit. 複数の前記蓄電部が前記基板における前記発熱部品の搭載面に沿って並んで配されている請求項１から請求項７のいずれか一項に記載の蓄電ユニット。 The power storage unit according to claim 1, wherein the plurality of power storage units are arranged side by side along a mounting surface of the heat generating component on the substrate.
JP2018083943A 2018-04-25 2018-04-25 Power storage unit Pending JP2019192486A (en)

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JP7454411B2 (en) 2020-03-04 2024-03-22 三洋電機株式会社 battery pack

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JPS61110974A (en) * 1984-11-06 1986-05-29 Yuasa Battery Co Ltd High temperature cell device
JP2008035581A (en) * 2006-07-26 2008-02-14 Toyota Motor Corp Power supply device of vehicle
JP5656706B2 (en) * 2011-03-22 2015-01-21 株式会社豊田自動織機 Battery temperature control device
JP6349731B2 (en) * 2014-01-08 2018-07-04 株式会社デンソー Circuit board structure
JP6369380B2 (en) * 2015-04-21 2018-08-08 豊田合成株式会社 Battery assembly

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JP7454411B2 (en) 2020-03-04 2024-03-22 三洋電機株式会社 battery pack
JP2022067210A (en) * 2020-10-20 2022-05-06 プライムプラネットエナジー＆ソリューションズ株式会社 Power storage device
JP7232802B2 (en) 2020-10-20 2023-03-03 プライムプラネットエナジー＆ソリューションズ株式会社 power storage device
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