JPH11273644A - Set battery and housing body for set battery - Google Patents
Set battery and housing body for set batteryInfo
- Publication number
- JPH11273644A JPH11273644A JP7000498A JP7000498A JPH11273644A JP H11273644 A JPH11273644 A JP H11273644A JP 7000498 A JP7000498 A JP 7000498A JP 7000498 A JP7000498 A JP 7000498A JP H11273644 A JPH11273644 A JP H11273644A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- unit cells
- battery fixing
- fixing plates
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、たとえばリチウム
二次電池の組電池及びその収容体に関し、詳しくは、複
数の素電池が電気的に接続され電源として用いられる組
電池、及び、組電池用収容体に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembled battery, for example, a lithium secondary battery and a housing thereof, and more particularly, to an assembled battery in which a plurality of cells are electrically connected to each other and used as a power source, and an assembled battery Containment related.
【０００２】[0002]
【従来の技術】複数の素電池が集合して電気的に接続さ
れた組電池が従来から知られている。この組電池は、最
近、残容量表示等の付加機能を加え、多様な用途へ対応
するべく電圧や容量を異にする様々な形状の組電池が生
産され、携帯用電源として市場に流通している。2. Description of the Related Art An assembled battery in which a plurality of unit cells are assembled and electrically connected has been conventionally known. Recently, battery packs of various shapes with different voltages and capacities have been produced to add various functions, such as display of remaining capacity, to meet various applications. I have.
【０００３】このような組電池の新しい用途として、近
年電気自動車用が加わりつつある。これら組電池の構造
としては特開平９−８６１８８号公報には、収容体に空
冷用の孔を設け、充放電により発熱する素電池を空冷す
る技術が開示されている。[0003] As a new use of such an assembled battery, an electric vehicle has recently been added. As a structure of these battery packs, Japanese Patent Application Laid-Open No. 9-86188 discloses a technique in which a hole for air cooling is provided in a container, and a unit cell that generates heat by charging and discharging is air-cooled.
【０００４】[0004]
【発明が解決しようとする課題】この従来のものでは、
素電池が複層に構成されてなる組電池についてみてみる
と、空冷用の孔の近傍にある外側の素電池と内側の素電
池の温度差を抑制するには不十分であった。その結果、
素電池の温度が組電池内で異なることで、それぞれの素
電池で充電及び放電の条件が異なり、組電池内の各素電
池の容量にバラツキが生じ、組電池本来の性能を十分に
引き出すことができない。In this conventional device,
Looking at a battery pack composed of unit cells in multiple layers, it was not sufficient to suppress the temperature difference between the outer cell and the inner cell near the hole for air cooling. as a result,
Because the temperature of the unit cell differs in the assembled battery, the conditions of charging and discharging differ for each unit cell, the capacity of each unit in the assembled battery varies, and the original performance of the assembled battery is fully drawn out Can not.
【０００５】即ち、従来の組電池においては、収容体内
に収容されている複数の素電池すべてをまんべんなく冷
却することができず冷却ムラが生じ、素電池それぞれの
間で温度差が生じてしまう。その結果、素電池間で充電
及び放電の条件が異なってしまい組電池本来の性能を十
分に引き出すことができない。[0005] That is, in the conventional battery pack, it is not possible to cool all of the plurality of cells contained in the container evenly, so that cooling unevenness occurs and a temperature difference occurs between the cells. As a result, the conditions for charging and discharging differ between the cells, and the original performance of the assembled battery cannot be sufficiently brought out.
【０００６】本願は係る実状に鑑み考え出されたもので
あり、その目的は、組電池内での素電池の温度のばらつ
きによる悪影響を抑制した組電池を提供することであ
る。The present invention has been made in view of the above situation, and an object of the present invention is to provide an assembled battery in which the adverse effects of temperature variations of the unit cells in the assembled battery are suppressed.
【０００７】[0007]
【課題を解決するための手段】請求項１に記載の組電池
は、複数の素電池と、収容体と、前記収容体内で前記電
池を固定する電池固定板を備え、組電池内の電池固定板
が金属であることを特徴とする。According to a first aspect of the present invention, there is provided an assembled battery comprising a plurality of unit cells, a housing, and a battery fixing plate for fixing the battery in the housing. The plate is made of metal.
【０００８】これにより、充電、放電により電池が発
熱、吸熱した際、電池固定板が金属であるため、電池固
定板を介した伝熱により素電池間に生じる温度差を抑制
することができる。このため各素電池の特性の差が抑制
された組電池を提供することができる。Accordingly, when the battery generates or absorbs heat due to charging and discharging, the temperature difference generated between the cells due to heat transfer through the battery fixing plate can be suppressed because the battery fixing plate is made of metal. For this reason, it is possible to provide an assembled battery in which a difference in characteristics between the unit cells is suppressed.
【０００９】請求項２に記載の発明によると、請求項１
に記載の発明の構成に加えて、前記電池固定板の設置間
隔は素電池長さの３分の１以下であることを特徴とす
る。According to the invention described in claim 2, according to claim 1,
In addition to the configuration of the invention described in the above, the installation interval of the battery fixing plate is not more than one third of the unit cell length.
【００１０】これにより、各素電池の温度のバラツキが
抑制された組電池を提供することができる。[0010] Thus, it is possible to provide an assembled battery in which variations in the temperature of each unit cell are suppressed.
【００１１】請求項３に記載の発明によると、請求項１
または２に記載の発明の構成に加えて、前記電池固定板
と前記素電池を熱伝導性樹脂で接続することを特徴とす
る。According to the invention described in claim 3, according to claim 1
Alternatively, in addition to the configuration of the invention described in 2 above, the battery fixing plate and the unit cell are connected by a heat conductive resin.
【００１２】これにより、電池に発生した熱を確実に電
池固定板に伝えることができる。また、電池固定板と電
池外周が密着するため、電池をそれぞれ１個づつ確実に
固定することができる。Thus, the heat generated in the battery can be reliably transmitted to the battery fixing plate. In addition, since the battery fixing plate and the outer periphery of the battery are in close contact with each other, the batteries can be securely fixed one by one.
【００１３】請求項４に記載の発明によると、請求項１
〜３のいずれかに記載の発明の構成に加え、前記電池固
定板が開口度３０〜７０％のパンチングメタルであるこ
とを特徴とする。According to the invention of claim 4, according to claim 1,
In addition to the configuration of the invention described in any one of Items 1 to 3, the battery fixing plate is a punched metal having an aperture of 30 to 70%.
【００１４】これにより、強度を損なわずに組電池重量
を低下することができ、高重量エネルギー密度の組電池
を提供できる。Thus, the weight of the assembled battery can be reduced without impairing the strength, and an assembled battery having a high weight energy density can be provided.
【００１５】請求項５に記載の発明によると、請求項１
〜４のいずれかに記載の発明の構成に加え、前記電池固
定板が素電池の長手方向の垂直面に対し傾斜して設置さ
れていることを特徴とする。According to the invention described in claim 5, according to claim 1,
In addition to the configuration of the invention described in any one of the above-described embodiments, the battery fixing plate is provided so as to be inclined with respect to a vertical vertical surface of the unit cell.
【００１６】これにより、冷却効果が向上する。請求項
６に記載の発明によると、電気的に接続された素電池を
収容する組電池用収容体は金属製電池固定板を備えた収
容体である。Thus, the cooling effect is improved. According to the invention described in claim 6, the battery pack housing for housing the electrically connected unit cells is a housing having a metal battery fixing plate.
【００１７】これにより、収容体内に素電池が収容され
た場合には、金属製電池固定板を介した伝熱により素電
池間の温度差が抑制され、素電池間の特性の差が抑制さ
れ組電池を高性能化する効果がある。また、金属製電池
固定板により外部からの圧力に対し変形しにくくなるた
め、組電池の強度を強化する効果がある。Accordingly, when the unit cells are accommodated in the container, the temperature difference between the unit cells is suppressed by the heat transfer through the metal battery fixing plate, and the difference in the characteristics between the unit cells is suppressed. This has the effect of improving the performance of the assembled battery. In addition, since the metal battery fixing plate is less likely to be deformed by an external pressure, there is an effect of enhancing the strength of the assembled battery.
【００１８】[0018]
【発明の実施の形態】次に、本発明による実施の形態を
図面に基づいて説明する。Next, an embodiment of the present invention will be described with reference to the drawings.
【００１９】図１は、本発明に係る組電池及び組電池用
収容体の構造を説明するための分解斜視図である。この
組電池は、組電池を収容するための樹脂製の収容体容器
３と、その収容体容器３内の横方向途中箇所に間隔を隔
てて設けられる２枚の金属製の電池固定板２と、複数
（図面上では８個）の素電池１と、樹脂製の収容体蓋部
４とから構成されている。FIG. 1 is an exploded perspective view for explaining the structure of a battery pack and a battery pack housing according to the present invention. The assembled battery includes a resin container 3 for accommodating the assembled battery, and two metal battery fixing plates 2 provided at an intermediate position in the lateral direction in the container 3 at intervals. , A plurality of (eight in the drawing) unit cells 1 and a housing lid 4 made of resin.
【００２０】収容体容器３の壁部の内面には、横方向途
中箇所に金属製電池固定板２を保持するための嵌合保持
部（図示せず）が形成されている。この嵌合保持部は、
収容体蓋部４側（以下、単に「左側」という）から挿入
された金属製電池固定板２を受け止め保持する受け止め
段部と、この受け止め段部に受け止め支持された金属製
電池固定板２の端部を受け止め段部と共に狭持して保持
する凸部とからなる。この凸部は樹脂により形成されて
いるため、左側から挿入された金属製電池固定板２を受
け止め段部方向に押し付けることにより弾性変形する。
また金属製電池固定板２がその凸部を乗り越えて受け止
め段部に受け止められ、受け止め段部と凸部によってそ
の金属製電池固定板２が弾性的に狭持されて固定され
る。A fitting holding portion (not shown) for holding the metal battery fixing plate 2 is formed on the inner surface of the wall of the container 3 at an intermediate position in the lateral direction. This fitting holding part,
A receiving step for receiving and holding the metal battery fixing plate 2 inserted from the container lid 4 side (hereinafter simply referred to as “left side”); and a metal battery fixing plate 2 received and supported by the receiving step. And a convex portion for holding and holding the end portion together with the receiving step portion. Since the convex portion is formed of resin, the convex portion is elastically deformed by receiving the metal battery fixing plate 2 inserted from the left side and pressing it in the direction of the step portion.
Further, the metal battery fixing plate 2 gets over the convex portion and is received by the receiving step, and the metal battery fixing plate 2 is elastically held and fixed by the receiving step and the convex portion.
【００２１】この嵌合保持部は、右側の金属製固定板２
を嵌合保持する右側嵌合保持部と、左側の金属製固定板
２を嵌合保持する左側嵌合保持部とからなる。The fitting holding portion is provided on the right metal fixing plate 2.
And a left-side fitting holding section for fitting and holding the metal fixing plate 2 on the left side.
【００２２】電池固定板２には、素電池１を挿入するた
めの挿入孔１１が複数（図面上では８個）穿設されてい
る。この挿入孔１１に素電池１を挿入して収容体容器３
内で固定保持させる。A plurality (eight in the drawing) of insertion holes 11 for inserting the unit cells 1 are formed in the battery fixing plate 2. The cell 1 is inserted into the insertion hole 11 so that the container 3
Let it be fixed inside.
【００２３】各素電池１は、電池接続片５により接続さ
れている。素電池１を電池接続片５により接続し、収容
体容器３内に水平方向に収容させた状態で収容体蓋部４
により蓋をしている。収容体蓋部４の両端の電池接続片
５は、収容体蓋部４外方に突出しており、その突出部分
より電流取り出し部６が構成されている。Each unit cell 1 is connected by a battery connecting piece 5. The unit cover 1 is connected to the unit cells 1 by the battery connecting pieces 5 and is housed in the housing container 3 in the horizontal direction.
With a lid. The battery connection pieces 5 at both ends of the housing lid 4 project outward of the housing lid 4, and the protruding portion constitutes a current extracting portion 6.
【００２４】収容体容器３内に設けられた左右２枚の金
属製電池固定板２の間隔は、収容状態で水平方向に載置
された素電池１の長さの３分の１以下となるように構成
されている。またこの金属製電池固定板２は開口度が３
０〜７０％のパンチングメタルで構成されている。The distance between the two left and right metal battery fixing plates 2 provided in the container 3 is one third or less of the length of the unit cells 1 placed horizontally in the accommodated state. It is configured as follows. The metal battery fixing plate 2 has an aperture of 3
It is composed of 0-70% punched metal.
【００２５】このような金属製電池固定板２を収容体容
器３内に取り付けて素電池１を収容体容器に挿入保持さ
せた状態で収容体蓋部４により蓋した状態が図２に示さ
れている。本発明にかかる組電池の完成した状態が図２
に示すものである。FIG. 2 shows a state in which the metal battery fixing plate 2 is mounted in the container 3 and the unit cell 1 is inserted and held in the container and covered with the container lid 4. ing. FIG. 2 shows a completed state of the assembled battery according to the present invention.
It is shown in FIG.
【００２６】金属製電池固定板２に穿設された挿入孔１
１と素電池１との間に熱伝導性樹脂１２が充填され、収
容体容器３内に素電池を固定保持するよう構成されてい
る。Insertion hole 1 formed in metal battery fixing plate 2
The space between the cell 1 and the unit cell 1 is filled with a heat conductive resin 12 so as to fix and hold the unit cell in the container 3.
【００２７】図３は、組電池の他の例を示す一部切り欠
き斜視図である。この図３に示す組電池において、図
１，図２に示したものとの相違点は、金属製電池固定板
２が水平方向に載置された素電池１の長手方向に対し垂
直に交わる面に対しθだけ傾斜して設けられている点で
ある。尚、この金属製電池固定板２の傾斜角度θは、素
電池の径の種類に応じて複数段に可変設定できるように
構成するのが望ましい。θは、組電池の使用条件で発熱
が大きい場合は傾ける、即ちθを大きくし冷却効果を高
めるよう作用させる。FIG. 3 is a partially cutaway perspective view showing another example of the battery pack. The battery pack shown in FIG. 3 is different from the battery pack shown in FIGS. 1 and 2 in that a surface perpendicular to the longitudinal direction of a unit cell 1 on which a metal battery fixing plate 2 is placed in a horizontal direction. Is provided at an angle of θ with respect to. It is desirable that the inclination angle θ of the metal battery fixing plate 2 can be variably set in a plurality of stages according to the type of the diameter of the unit cell. θ is inclined when the heat generation is large under the use condition of the assembled battery, that is, θ is made to increase so as to increase the cooling effect.
【００２８】[0028]
【実施例】本発明の実施例を素電池の作製と組電池の組
み立てという項目に分け、実験に基づいてより具体的に
以下に説明する。以下に示す実験では、実施例１及び実
施例２の組電池と、比較例１及び比較例２の組電池とを
比較して、各種性能を試してみた。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention are divided into items of unit cell fabrication and battery assembly, and will be described below more specifically based on experiments. In the experiments described below, the assembled batteries of Example 1 and Example 2 were compared with the assembled batteries of Comparative Example 1 and Comparative Example 2 to test various performances.
【００２９】（実施例１） （素電池としてのリチウム二次電池の作製）まず、正極
活物質としてコバルト酸リチウムを用いた正極板と、負
極活物質として黒鉛を用いた負極板を、イオン透過性の
ポリオレフィン製の微多孔膜を介して対向するようスパ
イラル状に多数回巻き取り、電極群本体を作製した。そ
の後電極群を、支持電解質として６弗化燐酸リチウムを
１Ｍの濃度で含むエステル系有機電解液と共に電池缶に
挿入し、素電池１であるΦ５７×２２０ｍｍの１８０Ｗ
ｈ級リチウム二次電池を作製した。(Example 1) (Production of lithium secondary battery as unit cell) First, a positive electrode plate using lithium cobalt oxide as a positive electrode active material and a negative electrode plate using graphite as a negative electrode active material were subjected to ion transmission. A number of spiral windings were carried out so as to face each other with a microporous membrane made of conductive polyolefin therebetween to produce an electrode group main body. Thereafter, the electrode group was inserted into a battery can together with an ester-based organic electrolytic solution containing lithium hexafluorophosphate at a concentration of 1 M as a supporting electrolyte, and a unit cell 1 of Φ57 × 220 mm, 180 W
An h-class lithium secondary battery was manufactured.
【００３０】（組電池の組み立て）前記の方法にて作製
した８本の素電池１を配置し、接続片５を設けた収容体
容器３と接続片５および電流取り出し部６を設けた収容
体蓋部４からなる収容体内に密封し、素電池が直列接続
された状態の組電池１０を組み立てた。尚、組電池中の
各素電池は、収容体蓋部方向から見て、上段左側よりＡ
〜Ｄ、下段左側よりＥ〜Ｈとした。素電池の固定には、
素電池１を固定する空隙を設けた厚さ３ｍｍのアルミニ
ウム板を４枚、５０ｍｍ間隔にして電池固定板２として
設置し、収容体容器３内に素電池を固定した。(Assembly of assembled battery) A container 3 in which eight unit cells 1 produced by the above-described method are arranged, and a connection piece 5 is provided, and a container in which a connection piece 5 and a current extracting portion 6 are provided. The battery pack 10 was sealed in a housing made up of the lid 4 and assembled in a state where unit cells were connected in series. Each unit cell in the assembled battery is A
D, E to H from the lower left. To fix the unit cells,
Four 3 mm-thick aluminum plates provided with a gap for fixing the unit cell 1 were installed as the battery fixing plate 2 at 50 mm intervals, and the unit cells were fixed in the container 3.
【００３１】（実施例２）厚み３ｍｍのアルミニウム板
２枚を７０ｍｍ間隔で設置した以外は実施例１と同様に
して、実施例２の組電池を作製した。(Example 2) An assembled battery of Example 2 was produced in the same manner as in Example 1 except that two aluminum plates having a thickness of 3 mm were installed at intervals of 70 mm.
【００３２】（比較例１）厚み３ｍｍのアルミニウム板
１枚を素電池長手方向のほぼ中央部に設置した以外は実
施例１と同様にして、比較例１の組電池を作製した。Comparative Example 1 An assembled battery of Comparative Example 1 was produced in the same manner as in Example 1 except that one aluminum plate having a thickness of 3 mm was set at substantially the center in the longitudinal direction of the unit cell.
【００３３】（比較例２）厚み５ｍｍのベークライト板
１枚を素電池長さ方向のほぼ中央部に設置した以外は実
施例１と同様にして、比較例２の組電池を作製した。(Comparative Example 2) An assembled battery of Comparative Example 2 was manufactured in the same manner as in Example 1 except that one bakelite plate having a thickness of 5 mm was installed at substantially the center in the length direction of the unit cell.
【００３４】上述のようにして準備した各組電池を用
い、電池固定板の枚数及び種類と、素電池のサイクル特
性及び電池温度の関係を調べた。実験方法としては、電
池の固定の条件が異なる上述の４種類の組電池を用い
て、下記の条件の充放電サイクル特性試験を行った。Using each of the assembled batteries prepared as described above, the relationship between the number and type of the battery fixing plates, the cycle characteristics of the unit cells, and the battery temperature was examined. As an experimental method, a charge / discharge cycle characteristic test under the following conditions was performed using the above four types of assembled batteries having different fixing conditions of the batteries.
【００３５】充放電サイクル特性試験として、組電池を
２５℃の恒温槽内に設置し、組電池の電圧が３２．８Ｖ
になるまで５０Ａで充電したのち、組電池の電圧が２
１．６Ｖになるまで５０Ａで放電するサイクルを５００
回繰り返した。この充放電サイクルにおける５００サイ
クル放電時の素電池の表面温度を測定し、各素電池にお
ける最高温度を記録した。また、この充放電サイクルに
おける初回放電容量に対する５００サイクル後の放電容
量の比率をサイクル特性値とした。As a charge / discharge cycle characteristic test, the assembled battery was placed in a thermostat at 25 ° C., and the voltage of the assembled battery was 32.8 V
After charging at 50 A until the battery voltage reaches 2
500 cycles of discharging at 50A until 1.6V
Repeated times. The surface temperature of the cell at the time of 500 cycles of discharge in this charge / discharge cycle was measured, and the maximum temperature of each cell was recorded. The ratio of the discharge capacity after 500 cycles to the initial discharge capacity in this charge / discharge cycle was defined as the cycle characteristic value.
【００３６】この結果を表１及び表２に示す。表１には
固定の条件が異なる組電池における、素電池Ａ〜Ｈの表
面温度を、また、表２には素電池Ａ〜Ｈのサイクル特性
値を示した。The results are shown in Tables 1 and 2. Table 1 shows the surface temperatures of the cells A to H in the assembled batteries having different fixing conditions, and Table 2 shows the cycle characteristics of the cells A to H.
【００３７】表１より、電池固定板は、ベークライト板
よりもアルミニウム板の方が素電池の表面温度が低くい
うえにバラツキも小さくなるという効果が奏され、ま
た、複数枚用いることでよりその効果が顕著となること
がわかる。As can be seen from Table 1, the battery fixing plate has the effect that the surface temperature of the unit cell is lower and the variation is smaller when the aluminum plate is used than the bakelite plate. It can be seen that the effect is remarkable.
【００３８】[0038]
【表１】 [Table 1]
【００３９】また、表２においても、電池固定板はベー
クライト板よりもアルミニウム板の方が素電池の残存容
量が大きいうえにバラツキも小さくなるという効果が奏
され、また、複数枚用いることでよりその効果が顕著と
なることがわかる。Also, in Table 2, the aluminum plate has the effect that the remaining capacity of the unit cell is large and the variation is small as compared with the bakelite plate in the battery fixing plate. It turns out that the effect becomes remarkable.
【００４０】[0040]
【表２】 [Table 2]
【００４１】尚、上記実施例で示した金属製の電池固定
板２は、上下２枚に限らず３枚以上設けてもよい。また
素電池が挿入される空隙１１は、円形に限らず四角形や
六角形等の多角形であってもよい。複数枚の電池固定板
２の傾斜方向は、図３に示したそれぞれ同一方向に限ら
ず、それぞれ逆方向に傾斜させてもよい。複数枚の電池
固定板２の傾斜角度θは素電池を十分に固定するために
４０°以下が好ましい。It should be noted that the number of the metal battery fixing plates 2 shown in the above embodiment is not limited to two at the upper and lower sides, but may be three or more. The space 11 into which the unit cell is inserted is not limited to a circle, but may be a polygon such as a square or a hexagon. The inclination directions of the plurality of battery fixing plates 2 are not limited to the same directions shown in FIG. 3, but may be inclined in opposite directions. The inclination angle θ of the plurality of battery fixing plates 2 is preferably 40 ° or less in order to sufficiently fix the unit cells.
【００４２】今回開示された実施の形態は、すべての点
で例示であって、制限的なものではないと考えるべきで
ある。本発明の範囲は、上記した説明ではなくて特許請
求の範囲によって示され、特許請求の範囲と均等の意味
及び範囲内ですべての変更が含まれることが意図され
る。The embodiment disclosed this time is merely an example in all respects, and should not be construed as limiting. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.
【００４３】[0043]
【発明の効果】請求項１記載の本発明によれば、組電池
の作製に収容体と一体成型された樹脂リブにより素電池
を固定するのではなく、収容体内に複数枚の金属製電池
固定板を用いて固定するため、電池固定板を介した伝熱
により素電池間の温度のばらつきや冷却ムラを抑制でき
る。その結果、素電池間の電池特性のばらつきを低減
し、組電池内に設けられることの多い過昇温度防止装置
の誤作動を起こしにくい高性能な組電池を提供すること
ができる。According to the first aspect of the present invention, a plurality of metal batteries are fixed in the housing, instead of fixing the unit cells by the resin ribs integrally formed with the housing in the manufacture of the assembled battery. Since the fixing is performed by using the plate, the temperature variation and the cooling unevenness between the unit cells can be suppressed by the heat transfer through the battery fixing plate. As a result, it is possible to provide a high-performance assembled battery that reduces variation in battery characteristics between unit cells and is less likely to malfunction the overheating temperature prevention device that is often provided in the assembled battery.
【００４４】請求項２記載の本発明によれば、請求項１
記載の発明の効果に加え、前記複数枚の金属製電池固定
板を素電池長さの３分の１以下に設置することにより組
電池の強度が向上し、より安全性に優れた組電池を提供
できる。According to the second aspect of the present invention, a first aspect is provided.
In addition to the effects of the invention described above, the strength of the assembled battery is improved by installing the plurality of metal battery fixing plates at one-third or less of the unit cell length, and the assembled battery with higher safety is provided. Can be provided.
【００４５】請求項３記載の本発明によれば、請求項１
または２記載の発明の効果に加え、前記金属製固定板と
前記素電池を熱伝導性樹脂で接続することで電池固定板
を介した伝熱により素電池間の温度のばらつきや冷却ム
ラの抑制が容易になる。その結果、素電池間の電池特性
のばらつきが低減された組電池を提供することができ
る。According to the third aspect of the present invention, a first aspect is provided.
In addition to the effects of the invention described in 2 above, by connecting the metal fixing plate and the unit cells with a heat conductive resin, heat transfer via the battery fixing plate suppresses temperature variations and cooling unevenness between the cells. Becomes easier. As a result, it is possible to provide an assembled battery in which variations in battery characteristics between unit cells are reduced.
【００４６】請求項４に記載の本発明によれば、請求項
１〜３のいずれかに記載の発明の効果に加え、前記金属
製電池固定板が開口度３０〜７０％のパンチングメタル
であるため、組電池の強度を落とさずに軽量化すること
ができるため、組電池の重量エネルギー密度を向上する
ことができる。According to the fourth aspect of the present invention, in addition to the effects of the first to third aspects, the metal battery fixing plate is a punched metal having an aperture of 30 to 70%. Therefore, the weight of the battery pack can be reduced without reducing the strength of the battery pack, so that the weight energy density of the battery pack can be improved.
【００４７】請求項５に記載の本発明によれば、請求項
１〜４のいずれかに記載の発明の効果に加え、前記金属
製電池固定板が収容体内で水平に載置された前記素電池
の垂直面に対し傾斜させて設けられているため、組電池
の冷却効果を一層高めることが可能となる。According to the fifth aspect of the present invention, in addition to the effects of the first to fourth aspects, the element in which the metal battery fixing plate is placed horizontally in the housing is provided. Since the battery is inclined with respect to the vertical surface of the battery, the cooling effect of the battery pack can be further enhanced.
【００４８】請求項６に記載の本発明によれば、収容体
に複数枚の金属製電池固定板を設けたため、組電池を構
成する素電池間に生じる温度差を抑制する効果がある。According to the sixth aspect of the present invention, since a plurality of metal battery fixing plates are provided in the housing, there is an effect of suppressing a temperature difference generated between the cells constituting the assembled battery.
【図１】本発明の実施例における組電池の分解斜視図で
ある。FIG. 1 is an exploded perspective view of an assembled battery according to an embodiment of the present invention.
【図２】本発明の実施例における組電池の構造を示す斜
視図である。FIG. 2 is a perspective view illustrating a structure of a battery pack according to an embodiment of the present invention.
【図３】本発明の実施例における組電池の構造の別形態
を示す部分切り欠き斜視図である。FIG. 3 is a partially cutaway perspective view showing another embodiment of the structure of the battery pack in the embodiment of the present invention.
１ 素電池 ２ 電池固定板 ３ 収容体容器 ４ 収容体蓋部 １２ 熱伝導性樹脂 DESCRIPTION OF SYMBOLS 1 Unit cell 2 Battery fixing plate 3 Container 4 Container lid 12 Thermal conductive resin
フロントページの続き (72)発明者 西尾 晃治 大阪府守口市京阪本通２丁目５番５号 三 洋電機株式会社内Continuation of front page (72) Inventor Koji Nishio 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd.
Claims (6)
して用いられる組電池であって、 複数の素電池と前記素電池を収容する収容体と前記素電
池が挿入される空隙が形成され、該空隙に挿入された前
記素電池を前記収納体内で固定保持するための複数枚の
電池固定板を有し、 前記電池固定板が金属製である、組電池。An assembled battery in which a plurality of unit cells are electrically connected to each other and used as a power source, wherein a plurality of unit cells, a housing for housing the unit cells, and a gap into which the unit cells are inserted are formed. An assembled battery, comprising: a plurality of battery fixing plates for fixing and holding the unit cells inserted into the gaps in the housing; and wherein the battery fixing plates are made of metal.
素電池長さの３分の１以下である、請求項１に記載の組
電池。2. An installation interval between the plurality of battery fixing plates,
2. The assembled battery according to claim 1, wherein the length of the assembled battery is one third or less.
性樹脂で接続した、請求項１または２に記載の組電池。3. The battery pack according to claim 1, wherein the battery fixing plate and the unit cells are connected by a heat conductive resin.
％のパンチングメタルである、請求項１〜３のいずれか
に記載の組電池。4. The battery fixing plate has an aperture of 30 to 70.
The assembled battery according to any one of claims 1 to 3, wherein the assembled battery is a perforated metal.
電池の長手方向に対し傾斜させて前記複数の電池固定板
を設けた、請求項１〜４のいずれかに記載の組電池。5. The battery pack according to claim 1, wherein the unit cells are mounted in a horizontal direction, and the plurality of battery fixing plates are provided to be inclined with respect to a longitudinal direction of the unit cells. .
収容する組電池用収容体であって、 前記素電池が挿入される空隙が形成され、該空隙に前記
素電池が挿入された場合に当該素電池を前記組電池収容
体内で固定保持するための複数枚の電池固定板を有し、 前記電池固定板が金属製である、組電池用収容体。6. An assembled battery container for accommodating a plurality of unit cells in an electrically connected state, wherein a space into which the unit cell is inserted is formed, and the unit cell is inserted into the space. In some cases, the battery pack housing has a plurality of battery fixing plates for fixing and holding the unit cells in the battery pack housing, and the battery fixing plate is made of metal.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7000498A JPH11273644A (en) | 1998-03-19 | 1998-03-19 | Set battery and housing body for set battery |
| US09/272,571 US6270920B1 (en) | 1998-03-19 | 1999-03-19 | Battery module and container for battery module |
| US09/799,034 US6645664B2 (en) | 1998-03-19 | 2001-03-06 | Battery module and container for battery module |
| US10/261,782 US6913852B2 (en) | 1998-03-19 | 2002-10-02 | Battery module and container for battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7000498A JPH11273644A (en) | 1998-03-19 | 1998-03-19 | Set battery and housing body for set battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11273644A true JPH11273644A (en) | 1999-10-08 |
Family
ID=13419038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7000498A Pending JPH11273644A (en) | 1998-03-19 | 1998-03-19 | Set battery and housing body for set battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11273644A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009520330A (en) * | 2005-12-15 | 2009-05-21 | マックスウェル テクノロジーズ， インク | Electrical module |
| JP2009212059A (en) * | 2008-03-06 | 2009-09-17 | Toshiba Corp | Battery device of electric light vehicle |
| JP2013140769A (en) * | 2011-12-05 | 2013-07-18 | Ihi Corp | Battery module |
| JP2014203766A (en) * | 2013-04-09 | 2014-10-27 | 小島プレス工業株式会社 | Battery holding device |
| JP2015011912A (en) * | 2013-07-01 | 2015-01-19 | 小島プレス工業株式会社 | Battery holding device |
| JP2015228286A (en) * | 2014-05-30 | 2015-12-17 | ダイキョーニシカワ株式会社 | Battery module |
| CN108091483A (en) * | 2018-01-30 | 2018-05-29 | 安徽瀚宇电气有限公司 | A kind of internal capacitance structure of intelligent capacitor |
-
1998
- 1998-03-19 JP JP7000498A patent/JPH11273644A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009520330A (en) * | 2005-12-15 | 2009-05-21 | マックスウェル テクノロジーズ， インク | Electrical module |
| JP2009212059A (en) * | 2008-03-06 | 2009-09-17 | Toshiba Corp | Battery device of electric light vehicle |
| JP2012238598A (en) * | 2008-03-06 | 2012-12-06 | Toshiba Corp | Battery device for electric light vehicle and electric light vehicle |
| JP2013140769A (en) * | 2011-12-05 | 2013-07-18 | Ihi Corp | Battery module |
| JP2014203766A (en) * | 2013-04-09 | 2014-10-27 | 小島プレス工業株式会社 | Battery holding device |
| JP2015011912A (en) * | 2013-07-01 | 2015-01-19 | 小島プレス工業株式会社 | Battery holding device |
| JP2015228286A (en) * | 2014-05-30 | 2015-12-17 | ダイキョーニシカワ株式会社 | Battery module |
| CN108091483A (en) * | 2018-01-30 | 2018-05-29 | 安徽瀚宇电气有限公司 | A kind of internal capacitance structure of intelligent capacitor |
| CN108091483B (en) * | 2018-01-30 | 2024-01-26 | 安徽瀚宇电气有限公司 | Internal capacitance structure of intelligent capacitor |
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