JPH0590816U - Battery pack - Google Patents
Battery packInfo
- Publication number
- JPH0590816U JPH0590816U JP034192U JP3419292U JPH0590816U JP H0590816 U JPH0590816 U JP H0590816U JP 034192 U JP034192 U JP 034192U JP 3419292 U JP3419292 U JP 3419292U JP H0590816 U JPH0590816 U JP H0590816U
- Authority
- JP
- Japan
- Prior art keywords
- battery
- spacer
- cells
- assembled battery
- unit cells
- 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
- 125000006850 spacer group Chemical group 0.000 claims abstract description 46
- 238000009423 ventilation Methods 0.000 claims abstract description 35
- 238000001816 cooling Methods 0.000 claims abstract description 33
- 230000017525 heat dissipation Effects 0.000 abstract description 8
- 238000007599 discharging Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 239000003779 heat-resistant material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229920006257 Heat-shrinkable film Polymers 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 229920006300 shrink film Polymers 0.000 description 1
Classifications
-
- Y02E60/12—
Landscapes
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
(57)【要約】
【目的】 簡単な構造で充放電中における電池の温度上
昇を抑制する。
【構成】 組電池は、複数本の充電式単電池１を並列に
並べて連結している。隣接する単電池１の間にスペーサ
３を配設している。スペーサ３は、単電池の側面の一部
に配設されている。スペーサ３を介して、単電池１の間
に冷却換気空隙４が設けられており、この冷却換気空隙
４を通過させて空気を換気し、単電池１の表面全体を効
率よく放熱させる。
【効果】 この考案の組電池は、スペーサーを設けるこ
とによって、単電池の間に冷却換気空隙を設け、冷却換
気空隙によって電池の放熱を改善し、電池温度を低下さ
せる。
(57) [Abstract] [Purpose] A simple structure suppresses the temperature rise of the battery during charging and discharging. [Constitution] In the assembled battery, a plurality of rechargeable cells 1 are arranged in parallel and connected. A spacer 3 is arranged between adjacent unit cells 1. The spacer 3 is arranged on a part of the side surface of the unit cell. A cooling ventilation gap 4 is provided between the unit cells 1 via the spacer 3, and the air is ventilated through the cooling ventilation gap 4 so that the entire surface of the unit cell 1 is efficiently radiated. [Effect] The battery pack of the present invention is provided with the spacer to provide the cooling ventilation gap between the cells, and the cooling ventilation gap improves the heat dissipation of the battery and lowers the battery temperature.
Description
【０００１】[0001]
この考案は、複数本の充電式単電池を並列に並べて連結した組電池に関する。 The present invention relates to an assembled battery in which a plurality of rechargeable cells are arranged in parallel and connected.
【０００２】[0002]
複数本の充電式単電池を並列に並べて連結した組電池は、種々の用途に使用さ れている。前記組電池は、電池の数を調整することによって、電圧や容量を大幅 に調整することができる。従来の組電池は、一般に、複数本の前記単電池を並列 に並べてケ−スに収納するか、あるいは、並列に並べた状態でその側面を熱収縮 フィルムで密着状態に被覆して構成されている。そして、熱収縮フィルムで被覆 した組電池では、フィルムの一部を開口することにより、放熱性を良くすること が試みられている。しかしながら、これら構造の組電池は、充放電時の発熱によ り、電池温度が上昇する性質があり、特に、充放電の電流を大きくし、あるいは 、過放電すると電池温度が著しく上昇する性質がある。 An assembled battery in which a plurality of rechargeable cells are arranged in parallel and connected is used for various purposes. The voltage and capacity of the battery pack can be adjusted significantly by adjusting the number of batteries. A conventional assembled battery is generally constructed by arranging a plurality of the cells in parallel and storing them in a case, or by arranging them in parallel and coating the side surfaces thereof with a heat shrink film in a close contact state. There is. In a battery pack covered with a heat-shrinkable film, it has been attempted to improve heat dissipation by opening a part of the film. However, the battery pack with these structures has the property that the battery temperature rises due to the heat generated during charge / discharge, and in particular, the battery temperature rises significantly when the charge / discharge current is increased or over-discharged. is there.
【０００３】 さらにまた、組電池は、全長を短くするために、並列に並べて複数段に積層し て構成される。前記単電池を複数段に積層した組電池は、図７に示すように、周 囲が前記単電池１に囲まれて、空気の換気が悪い空洞２ができる。したがって、 全ての前記単電池１を均一に冷却できない欠点がある。十分に放熱できない組電 池は、温度によって電池電圧が影響を受け、結果的に充電電流や放電電流に制限 を受ける。特に、高温に弱いニッケル−水素電池等は、充電中に温度が上昇する と、電池性能に著しい悪影響を及ぼすため、充電方法に制限を受ける欠点がある 。Furthermore, the assembled battery is arranged in parallel and stacked in a plurality of stages in order to shorten the overall length. As shown in FIG. 7, the assembled battery obtained by stacking the unit cells in a plurality of stages has a cavity 2 surrounded by the unit cells 1 and having poor air ventilation. Therefore, there is a drawback that all the unit cells 1 cannot be cooled uniformly. The battery voltage of an assembled battery that cannot sufficiently dissipate heat is affected by the temperature, and as a result the charging current and discharging current are limited. In particular, nickel-hydrogen batteries and the like, which are susceptible to high temperatures, have a drawback that the charging method is limited because the battery performance is significantly adversely affected if the temperature rises during charging.
【０００４】 また、前記単電池は、大きくなるほど放熱が大切になる。それは、容量を増加 させるために前記単電池を大きくすると、放熱部分となる電池表面の面積の増加 が、電池容量の増加よりも少なくなるからである。例えば、円柱状の充電式単電 池は、長さを一定にして太さを２倍にすると容量は２倍以上にアップできる。し かし、太さを２倍にした前記単電池の表面積は２倍にしかならない。このため太 さが２倍の単電池は、容量当りの表面積が前述のものと比較して減少し、結果的 に放熱面積も減少する。Further, as the size of the unit cell increases, heat dissipation becomes more important. The reason for this is that if the unit cell is made large in order to increase the capacity, the increase in the area of the battery surface, which is the heat dissipation portion, is smaller than the increase in the battery capacity. For example, in a columnar rechargeable single battery, the capacity can be doubled or more by doubling the thickness with a fixed length. However, the surface area of the unit cell whose thickness is doubled can only be doubled. For this reason, the surface area per unit capacity of a cell with twice the thickness is smaller than that of the above-mentioned one, and consequently the heat dissipation area is also reduced.
【０００５】 更に困ったことに、大容量の前記単電池は、充電時間を短くするために、充電 電流を大きくすることが要求される。しかし、大電流で充電すると、前記単電池 は内部で発生する熱を効果的に表面から放熱できず、電池温度の上昇に拍車がか かるという欠点がある。また、大容量の前記単電池は、大電流で放電されること が多く、内部の発熱が増加して電池温度を上昇させる。このため大容量の前記単 電池を連結した組電池は、いかにして放熱を良くするかが極めて大切である。To make matters worse, the large-capacity unit cell is required to increase the charging current in order to shorten the charging time. However, when charged with a large current, the unit cell cannot effectively dissipate the heat generated inside from the surface, and there is a disadvantage that the battery temperature rises. In addition, the large-capacity unit cells are often discharged with a large current, and the internal heat generation increases to raise the battery temperature. Therefore, how to improve the heat dissipation is extremely important for the assembled battery in which the large-capacity cells are connected.
【０００６】[0006]
この考案は、組電池にとって大切な放熱性を改善することを目的に開発された もので、この考案の重要な目的は、極めて簡単な構造で、充放電中における電池 の温度上昇を抑制できる組電池を提供することにある。 This device was developed for the purpose of improving heat dissipation, which is important for a battery pack, and the important object of this device is an assembly that can suppress the temperature rise of the battery during charging and discharging with an extremely simple structure. To provide batteries.
【０００７】[0007]
この考案は、前述した目的を達成するために、複数本の充電式単電池を並列に 並べて連結した組電池を改良したものである。この考案の組電池は、図１及び図 ３に示すように、隣接する単電池１の側面の一部、例えば、側面の両端部にスペ ーサ３を配設している。このスペーサ３は前記単電池１間に介在し、互いに並列 に連結される前記単電池１の側面部間に冷却換気空隙４を形成する。前記単電池 １の間にできる冷却換気空隙４は、ここを通過して空気が流れ、前記単電池１の 表面全体から効率良く放熱する。 In order to achieve the above-mentioned object, the present invention is an improvement of an assembled battery in which a plurality of rechargeable cells are arranged in parallel and connected. As shown in FIGS. 1 and 3, the battery pack of the present invention is provided with spacers 3 on a part of a side surface of an adjacent single cell 1, for example, both ends of the side surface. The spacer 3 is interposed between the unit cells 1 and forms a cooling ventilation gap 4 between the side surfaces of the unit cells 1 which are connected in parallel with each other. Air flows through the cooling and ventilation gaps 4 formed between the unit cells 1 to efficiently radiate heat from the entire surface of the unit cells 1.
【０００８】 この考案の組電池は、充電式単電池１の側面の一部に配設したスペーサ３によ って、前記単電池１の間に冷却換気空隙４を形成することを特徴とするものであ る。スペーサは、好ましくは、全ての単電池の側面の両端部に配設される。但し 、必ずしも全ての単電池の側面の両端部にスペーサを配設する必要はない。例え ば、隣接する単電池の一方の側面の両端部にスペーサを配設しておけば、他方の 単電池にスペーサを配設しなくても、これらの単電池間には、冷却換気空隙を形 成することができる。更に、側面の上端のみにスペーサを配設した単電池の隣に 、側面の下端のみにスペーサを配設した単電池を配し、これらを交互に並べて冷 却換気空隙を形成することもできる。スペーサの配設個所は、単電池の側面の一 部であれば必ずしも両端部である必要はなく、単電池間に冷却換気空隙を形成で きれば、両端部より中央部側に配設しても良い。また、スペーサは、電池の全周 を覆うものだけに限らず、隣接する電池と接する部分にのみ配設しても良い。The assembled battery of the present invention is characterized in that a cooling ventilation gap 4 is formed between the unit cells 1 by a spacer 3 arranged on a part of a side surface of the rechargeable unit cell 1. It is a thing. The spacers are preferably arranged at both ends of the side surface of all the cells. However, it is not always necessary to dispose spacers at both end portions of the side surfaces of all the unit cells. For example, if spacers are provided at both ends of one side of adjacent cells, a cooling ventilation gap is provided between these cells even if spacers are not provided on the other cell. Can be formed. It is also possible to arrange a unit cell having a spacer only at the lower end of the side surface next to the unit cell having a spacer only at the upper end of the side surface and alternately arrange the unit cells to form a cooling ventilation gap. The spacers need not be located at both ends as long as they are part of the side surface of the unit cell.If a cooling ventilation gap can be formed between the unit cells, the spacer should be placed closer to the center. Is also good. Further, the spacer is not limited to one that covers the entire circumference of the battery, and may be provided only in a portion that contacts an adjacent battery.
【０００９】[0009]
この考案の組電池は、図１及び図３に示すように、隣接する充電式単電池１の 側面の一部にスペーサ３を配設し、そのスペーサ３によって単電池間に冷却換気 空隙４を設けている。前記単電池１の間に存在する空気は、この冷却換気空隙４ を通って、容易に移動可能となるため、単電池を効率的に冷却できる。また、図 ６に示すように、単電池１を横向けにして積み重ねて使用する場合には、単電池 １で囲まれる空洞に位置する空気の温度が上昇すると、空気が軽くなって前記冷 却換気空隙４を通過して、速やかに換気される。このため、連結された複数の単 電池１は、電池の全周から効果的に放熱して温度上昇を抑制できる。 As shown in FIGS. 1 and 3, the battery pack of the present invention has a spacer 3 arranged on a part of the side surface of an adjacent rechargeable battery cell 1, and the spacer 3 provides a cooling ventilation gap 4 between the battery cells. It is provided. Since the air existing between the unit cells 1 can easily move through the cooling ventilation gap 4, the unit cells can be efficiently cooled. Further, as shown in FIG. 6, when the cells 1 are stacked side by side and used, when the temperature of the air located in the cavity surrounded by the cells 1 rises, the air becomes lighter and the cooling is performed. After passing through the ventilation gap 4, it is quickly ventilated. For this reason, the plurality of connected unit cells 1 can effectively radiate heat from the entire circumference of the battery and suppress the temperature rise.
【００１０】[0010]
以下に、この考案の実施例を図面に基づいて説明する。但し、以下に示す実施 例は、この考案の技術思想を具体化するための組電池を例示するものであって、 この考案の組電池は、構成部品の材質、形状、構造、配置を下記の構造に特定す るものではない。この考案の組電池は、実用新案登録請求の範囲において、種々 の変更を加えることができる。 An embodiment of the present invention will be described below with reference to the drawings. However, the examples shown below exemplify an assembled battery for embodying the technical idea of the present invention, and the assembled battery of the present invention has the following components, materials, shapes, structures, and arrangements. It is not specific to the structure. The assembled battery of this invention can be modified in various ways within the scope of claims for utility model registration.
【００１１】 更に、この明細書は、実用新案登録請求の範囲を理解し易いように、実施例に 示される部材に対応する番号を、「実用新案登録請求の範囲の欄」、及び「課題 を解決するための手段の欄」に示される部材に付記している。ただ、実用新案登 録請求の範囲に示される部材を、実施例の部材に特定するものでは決してない。Further, in this specification, in order to facilitate understanding of the scope of utility model registration claims, the numbers corresponding to the members shown in the embodiment are referred to as "utility model registration claim column" and "problem It is added to the members shown in the column of "Means for solving". However, the members indicated in the scope of claims for utility model registration are by no means specified as the members of the embodiment.
【００１２】 図１と図２に示す組電池は、４本の充電式単電池１を並列に並べて連結してい る。４本の前記単電池１は、その側面の両端部にテ−プからなるスペーサ３が貼 着されており、このスペーサ３によって、隣接する単電池１の間に冷却換気空隙 ４を形成している。スペーサ３は、好ましくは絶縁性、耐熱性材料が使用される 。絶縁性部材であれば、負極端子または正極端子と兼用される金属製の電池外装 缶を、別途絶縁性のチュ−ブなどで被覆しておくことなしに、外装缶同志を電気 的に絶縁して連結できる。また、耐熱性材料であれば、電池が異常に発熱した場 合においても、電池間の絶縁及び冷却換気空隙の確保が可能となる。このように 、金属製の外装缶を直接冷却できる組電池は、特に放熱効果を高くできる特徴が ある。更に、スペーサ３は、前記単電池１に簡単に配設することができるように 、片面に粘着層を有する絶縁性、耐熱性部材が有効である。The assembled battery shown in FIGS. 1 and 2 has four rechargeable cells 1 arranged in parallel and connected. Spacers 3 made of tape are adhered to both ends of the side surfaces of the four unit cells 1, and the spacers 3 form cooling ventilation gaps 4 between adjacent unit cells 1. There is. The spacer 3 is preferably made of an insulating and heat resistant material. If it is an insulative member, the metal outer can, which is also used as the negative or positive electrode terminal, can be electrically insulated from each other without covering it with a separate insulating tube. Can be connected. In addition, if a heat-resistant material is used, it becomes possible to ensure insulation between the batteries and a cooling ventilation gap even if the batteries generate heat abnormally. As described above, the assembled battery capable of directly cooling the metallic outer can has a characteristic that the heat radiation effect can be particularly enhanced. Further, as the spacer 3, an insulating and heat resistant member having an adhesive layer on one side is effective so that it can be easily arranged in the unit cell 1.
【００１３】 隣接する単電池１間の冷却換気空隙４の間隔は、スペーサ３の厚さで調整でき る。図１で示すように、全ての単電池１の側面両端部にスペーサを配設して連結 した組電池は、冷却換気空隙４の間隔がスペーサ３の厚さの２倍となる。したが って、この場合におけるスペーサ３の厚さは、冷却換気空隙４の半分に設計され る。図示しないが、隣接する電池の一方にのみ、その側面両端部にスペーサを配 した組電池は、前記単電池の間にスペーサが一つ介在することになるので、冷却 換気空隙はスペーサの厚さに等しくなる。そして、冷却換気空隙の間隔を広くす ると、空気の換気流通量を多くすることが可能であるが、冷却換気空隙が広くな ると、組電池の外形が大きくなるため、冷却換気空隙の間隔は、空気の換気流通 量と組電池との外形とを考慮して決定される。The distance between the cooling ventilation gaps 4 between the adjacent cells 1 can be adjusted by the thickness of the spacer 3. As shown in FIG. 1, in the assembled battery in which spacers are arranged at both ends of the side surfaces of all the unit cells 1 and connected, the intervals of the cooling ventilation gaps 4 are twice the thickness of the spacers 3. Therefore, the thickness of the spacer 3 in this case is designed to be half the cooling ventilation gap 4. Although not shown, in an assembled battery in which spacers are arranged at both ends of the side surface of only one of the adjacent batteries, one spacer is interposed between the unit cells, so the cooling ventilation gap has the thickness of the spacer. Is equal to If the space between the cooling ventilation spaces is widened, it is possible to increase the ventilation circulation volume of air.However, if the cooling ventilation spaces are widened, the outer shape of the battery pack becomes large. The interval is determined in consideration of the ventilation flow rate of air and the outer shape of the assembled battery.
【００１４】 また、図１及び図２に示す組電池は、スペーサ３を配設した部分を、図２の破 線で示すように、結束線材５で捲回して連結することができる。Further, in the assembled battery shown in FIGS. 1 and 2, the portion provided with the spacer 3 can be wound and connected with the binding wire 5 as shown by the broken line in FIG.
【００１５】 図３及び図４に示す組電池は、角柱状の充電式単電池１を並列に並べて連結し ている。この組電池は前記単電池１の側面の両端部にスペーサ３を配設し、単電 池の対向面の間に冷却換気空隙４を形成している。これに対して、前記スペーサ を用いずに角柱状の単電池を連結した従来の組電池は、単電池間は広い面積で対 向面が密着する。そして、この従来の組電池では、密着する単電池の対向面は換 気が極めて悪いため、十分に放熱することができない。しかしながら、図３及び 図４に示す組電池は、対向面に冷却換気空隙４を設けているため、十分に換気が でき、前記単電池１の全周から効率良く放熱できる。In the battery pack shown in FIGS. 3 and 4, prismatic rechargeable cells 1 are arranged in parallel and connected. In this assembled battery, spacers 3 are arranged at both ends of the side surface of the unit cell 1, and a cooling ventilation gap 4 is formed between the facing surfaces of the unit cell. On the other hand, in the conventional assembled battery in which the prismatic unit cells are connected without using the spacer, the facing surfaces are in close contact with each other in a wide area between the unit cells. Further, in this conventional assembled battery, since the opposing surfaces of the unit cells that are in close contact with each other have extremely poor aeration, heat cannot be sufficiently dissipated. However, since the assembled battery shown in FIGS. 3 and 4 is provided with the cooling ventilation gap 4 on the opposite surface, sufficient ventilation can be achieved and heat can be efficiently radiated from the entire circumference of the unit cell 1.
【００１６】 更に、図５に示す組電池は、８本の円柱状の充電式単電池１をケ−ス６内に並 列に並べて収納したものである。この組電池は、その隣接する単電池１の谷間に 、単電池の長さ方向に平行な空洞２が形成されている。また、隣接する単電池１ の側面の両端部には、テ−プからなるスペーサ３が貼着されており、このスペー サ３によって、隣接する単電池１間に冷却換気空隙４が形成されている。この冷 却換気空隙４は、電池の長さ方向に平行な前記空洞２同志を相互に連通し、電池 の長さ方向に垂直な方向の空気の流れを形成することができる。一方、これらの 単電池１を収納するケ−ス６は、前記単電池１がスペーサ３を配設した部分で密 着状態で収納できるような内形を有している。そして、このケ−ス６は、前記単 電池１の間を十分に換気できるように、ケ−ス６の側面に空気穴７、上面に空気 穴８が開口している。側面の空気穴７は、前記単電池１の間に形成された空洞２ に対応する位置に開口しており、空気穴８は、前記空気穴７が形成されたケ−ス ６の側面と対向する側面近傍のケ−ス上面に形成されている。Further, the assembled battery shown in FIG. 5 comprises eight columnar rechargeable cells 1 arranged in a case 6 in parallel. In this assembled battery, a cavity 2 parallel to the length direction of the unit cell is formed in the valley between the adjacent unit cells 1. Spacers 3 made of tape are attached to both end portions of the side surfaces of the adjacent unit cells 1, and the spacers 3 form cooling ventilation gaps 4 between the adjacent unit cells 1. There is. The cooling / ventilation space 4 allows the cavities 2 that are parallel to the lengthwise direction of the battery to communicate with each other to form an air flow in a direction perpendicular to the lengthwise direction of the battery. On the other hand, the case 6 for accommodating the unit cells 1 has an inner shape such that the unit cells 1 can be accommodated in a tightly packed state at the portion where the spacer 3 is arranged. The case 6 has an air hole 7 on the side surface of the case 6 and an air hole 8 on the upper surface of the case 6 so that the space between the cells 1 can be sufficiently ventilated. The air hole 7 on the side surface is opened at a position corresponding to the cavity 2 formed between the unit cells 1, and the air hole 8 is opposed to the side surface of the case 6 in which the air hole 7 is formed. Is formed on the upper surface of the case near the side surface.
【００１７】 この組電池は、前記ケ−ス６の上面に形成した空気穴８から空気を吸い上げる ことで、ケ−ス６内に収納した単電池１を効果的に冷却することができる。即ち 、ケ−ス６の上面に形成した空気穴８から空気を吸い上げると、ケ−ス６の側面 に形成した空気穴７からケ−ス６内に空気が流入し、この流入した空気は、単電 池１の長さ方向に平行な空洞２を通ってケ−ス６の内部に入り、更に、単電池１ 間の冷却換気空隙４を通ってケ−ス６の上面に上昇して、空気穴８からケ−ス６ の外部に放出される。このように前記冷却換気空隙４を形成することによって、 組電池内に単電池１の長さ方向と平行な空気の流れに加えて、単電池１の長さ方 向と異なる方向の空気の流れを作り出すことが可能となり、単電池をその側面全 体から効率良く冷却して、電池の温度上昇を防止することが可能である。This assembled battery can effectively cool the unit cell 1 housed in the case 6 by sucking air from the air hole 8 formed in the upper surface of the case 6. That is, when air is sucked up from the air hole 8 formed on the upper surface of the case 6, the air flows into the case 6 from the air hole 7 formed on the side surface of the case 6, and the inflowing air is It enters the inside of the case 6 through the cavity 2 parallel to the length direction of the unit cell 1, and further rises to the upper surface of the case 6 through the cooling ventilation gap 4 between the unit cells 1. The air is discharged from the air holes 8 to the outside of the case 6. By forming the cooling ventilation gap 4 in this way, in addition to the air flow parallel to the length direction of the unit cell 1 in the battery pack, the air flow in a direction different from the length direction of the unit cell 1 This makes it possible to efficiently cool the cell from its entire side surface and prevent the temperature rise of the cell.
【００１８】 以上の組電池は、充電式単電池１の側面の両端部に帯状のスペーサ３を配設し て冷却換気空隙４を設けている。帯状のスペーサ３は、前記単電池１の端に配設 し易く、また、これを緩衝材として、隣接する前記単電池１を連結できる効果が ある。ただ、スペーサ３は、この考案では、材質の種類は特定されるものではな く、隣接する電池間に空隙が形成できるものであれば良い。In the above-mentioned assembled battery, strip-shaped spacers 3 are arranged at both ends of the side surface of the rechargeable battery cell 1 to provide a cooling ventilation gap 4. The strip-shaped spacer 3 is easy to dispose at the end of the unit cell 1, and has an effect that the adjacent unit cells 1 can be connected by using this as a cushioning material. However, in the present invention, the spacer 3 is not limited to a specific type of material, and may be any spacer that can form a gap between adjacent batteries.
【００１９】 次いで、この考案の一実施例の組電池と、従来の組電池に関する実験結果につ いて言及する。Next, the experimental results concerning the assembled battery of one embodiment of the present invention and the conventional assembled battery will be described.
【００２０】 ［実施例］ 高さ１０９．５ｍｍ、直径４２．０ｍｍの公称容量１５Ａｈのニッケル−カド ミウム電池を用意し、この単電池の側面の両端部に、幅２０ｍｍ、厚さ０．１９ ｍｍのガラスクロステ−プからなるスペーサを、２重に巻き付けることにより貼 着する。このスペーサを貼着した単電池４本を、隣接する単電池の端面に露出す る電極の極性が異なるようにして、図１及び図２に示すように配し、直列に接続 して組電池を作製した。これを本考案の組電池とする。Example A nickel-cadmium battery having a height of 109.5 mm and a diameter of 42.0 mm and a nominal capacity of 15 Ah was prepared, and a width of 20 mm and a thickness of 0.19 mm were provided at both ends of the side surface of the single battery. The spacer made of the glass cloth tape is attached by wrapping it twice. Four unit cells to which this spacer is attached are arranged as shown in Fig. 1 and Fig. 2 with different polarities of the electrodes exposed on the end faces of adjacent unit cells, and connected in series to form a battery pack. Was produced. This is the assembled battery of the present invention.
【００２１】 ［従来例］ 上記実施例において、前記スペーサを単電池に貼着せず、その他は同様にして 組電池を作製した。これを従来の組電池とする。[Prior art example] A battery pack was produced in the same manner as in the above example except that the spacer was not attached to the unit cell. This is a conventional assembled battery.
【００２２】 上記組電池を用い、これらの組電池の側面から１５ｃｍ離れた位置に１２Ｗの ファンを設置して強制的に送風（矢印方向）を行いながら、前記組電池を０．３ Ｃ（４．５Ａ）の電流で４時間充電した後、１時間休止し、１Ｃ（１５Ａ）の電 流で放電し、電池電圧が０．８Ｖに到達した時点で放電を停止して、電池の表面 温度を測定した。この結果を表１に示す。Using the above-mentioned assembled batteries, a fan of 12 W was installed at a position 15 cm away from the side surface of these assembled batteries to forcibly blow air (in the direction of the arrow), and 0.5A) for 4 hours, then rest for 1 hour, discharge with 1C (15A) current, stop discharging when the battery voltage reaches 0.8V, and change the surface temperature of the battery. It was measured. The results are shown in Table 1.
【００２３】 尚、単電池１の温度測定部分は、４本の単電池１に囲まれた空洞２に面する表 面と、前記空洞２に面しない表面の２個所であり、表中に夫々内側、外側として 示している。また、測定の際の雰囲気温度は２０℃である。It should be noted that the temperature measuring portions of the unit cells 1 are a surface surrounded by the four unit cells 1 facing the cavities 2 and a surface not facing the cavities 2, respectively. Shown as inside and outside. The ambient temperature at the time of measurement is 20 ° C.
【００２４】[0024]
【表１】 [Table 1]
【００２５】 表１から明らかなように、本考案の組電池と従来の組電池では、放電末期にお ける単電池の外側温度と内側温度の差が、本考案では１．７℃であるのに対して 、従来では２．３℃と、本考案の組電池の方が０．６℃低くなっている。また、 放電時の放電電流を更に大きくすると、本考案の組電池と従来の組電池の放電末 期における前記温度差はより顕著に現れる。これは、本考案の組電池が、極めて 簡単な構成であるにもかかわらず、単電池が効率良く放熱できているのに対して 、従来の組電池では単電池に局部的な放熱不良が生じているからである。As is clear from Table 1, in the assembled battery of the present invention and the conventional assembled battery, the difference between the outside temperature and the inside temperature of the unit cell at the end of discharge is 1.7 ° C. in the present invention. In contrast, the battery pack of the present invention is 2.3 ° C lower than that of the conventional battery by 0.6 ° C. When the discharge current during discharging is further increased, the temperature difference between the battery pack of the present invention and the conventional battery pack at the end of discharge becomes more remarkable. This is because although the assembled battery of the present invention has an extremely simple structure, the single battery can efficiently dissipate heat, while the conventional assembled battery causes local heat dissipation failure. Because it is.
【００２６】 組電池に内蔵される単電池は、内部で発生する熱量と、電池の表面から放射で きる放熱量によって上昇温度が決定する。このため、従来の組電池で見られるよ うな単電池の局部的な放熱不良が生じると、電池全体の放熱量が減少して単電池 の温度が上昇し、電池性能に悪影響を与える結果となる。The temperature rise of the unit cell built into the assembled battery is determined by the amount of heat generated inside and the amount of heat released from the surface of the battery. For this reason, if local heat radiation failure occurs in a single cell as seen in conventional battery packs, the heat radiation amount of the entire battery will decrease and the temperature of the single cell will rise, resulting in an adverse effect on battery performance. ..
【００２７】[0027]
この考案の組電池は、隣接する充電式単電池間に、単電池の側面の一部に配設 したスペーサを介在させて、前記単電池間に冷却換気空隙を設けている。冷却換 気空隙は、ここに空気を通過させることによって、単電池の側面全周に効果的に 空気を流動させる。このため、この考案の組電池は、空気の流動によって、充放 電時に電池内部で発生する熱を、単電池表面の広い面積にて放散して、電池の温 度上昇を抑制できる特徴を有する。特に、この考案の組電池は、前記単電池の一 部にテ−プなどのスペーサを配設するという極めて簡単な構造によって、組電池 にとって極めて大切な電池の温度上昇の抑制を行うことができるという極めて優 れた特徴を実現する。 In the assembled battery of the present invention, a cooling ventilation gap is provided between adjacent rechargeable cells by interposing a spacer disposed on a part of the side surface of the cell. By passing air through the cooling air gap, the air effectively flows around the entire circumference of the side surface of the unit cell. Therefore, the battery pack of the present invention has a feature that the heat generated inside the battery at the time of charging / discharging is dissipated in a large area on the surface of the cell due to the flow of air, and the temperature rise of the battery can be suppressed. .. In particular, the battery pack of the present invention can suppress the temperature rise of the battery, which is extremely important for the battery pack, by the extremely simple structure in which a spacer such as a tape is provided in a part of the unit battery. It realizes the extremely excellent characteristics.
【図１】この考案の一実施例を示す組電池の正面図FIG. 1 is a front view of an assembled battery showing an embodiment of the present invention.
【図２】図１に示す組電池の平面図FIG. 2 is a plan view of the assembled battery shown in FIG.
【図３】この考案の他の実施例を示す組電池の正面図FIG. 3 is a front view of an assembled battery showing another embodiment of the present invention.
【図４】図３に示す組電池の平面図FIG. 4 is a plan view of the assembled battery shown in FIG.
【図５】この考案の他の実施例を示す組電池の斜視図FIG. 5 is a perspective view of an assembled battery showing another embodiment of the present invention.
【図６】図５の組電池に収納される単電池の連結状態を
示す斜視図6 is a perspective view showing a connected state of the unit cells housed in the assembled battery of FIG.
【図７】従来の組電池を示す斜視図FIG. 7 is a perspective view showing a conventional assembled battery.
１…単電池 ２…空洞 ３…スペーサ ４…冷却換気空隙 ５…結束線材 ６…ケース ７…空気穴 ８…空気穴 DESCRIPTION OF SYMBOLS 1 ... Single cell 2 ... Cavity 3 ... Spacer 4 ... Cooling ventilation space 5 ... Bundling wire 6 ... Case 7 ... Air hole 8 ... Air hole
───────────────────────────────────────────────────── フロントページの続き (72)考案者 北岡 和洋 大阪府守口市京阪本通２丁目18番地 三洋 電機株式会社内 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Kazuhiro Kitaoka 2-18 Keihan Hondori, Moriguchi City, Osaka Prefecture Sanyo Electric Co., Ltd.
Claims (1)
て連結した組電池において、 隣接する前記単電池(1)の間に、前記単電池(1)の側面の
一部に配設したスペーサ(3)を介在させて、前記単電池
(1)間に冷却換気空隙(4)を設けたことを特徴とする組電
池。1. A battery pack in which a plurality of rechargeable cells (1) are arranged in parallel and connected to each other, and a part of a side surface of the cell (1) is arranged between the adjacent cells (1). With the spacer (3) installed, the unit cell
An assembled battery characterized in that a cooling ventilation gap (4) is provided between (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP034192U JPH0590816U (en) | 1992-05-22 | 1992-05-22 | Battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP034192U JPH0590816U (en) | 1992-05-22 | 1992-05-22 | Battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0590816U true JPH0590816U (en) | 1993-12-10 |
Family
ID=12407319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP034192U Pending JPH0590816U (en) | 1992-05-22 | 1992-05-22 | Battery pack |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0590816U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001291533A (en) * | 2000-04-10 | 2001-10-19 | Japan Storage Battery Co Ltd | Battery pack |
| JP2006190695A (en) * | 1997-10-06 | 2006-07-20 | Toyota Motor Corp | Battery electric source apparatus |
| JP2006210359A (en) * | 1997-03-24 | 2006-08-10 | Toyota Motor Corp | Battery power cooling system |
| WO2013018331A1 (en) * | 2011-07-29 | 2013-02-07 | パナソニック株式会社 | Battery storage block and battery module |
-
1992
- 1992-05-22 JP JP034192U patent/JPH0590816U/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006210359A (en) * | 1997-03-24 | 2006-08-10 | Toyota Motor Corp | Battery power cooling system |
| JP2006190695A (en) * | 1997-10-06 | 2006-07-20 | Toyota Motor Corp | Battery electric source apparatus |
| JP2001291533A (en) * | 2000-04-10 | 2001-10-19 | Japan Storage Battery Co Ltd | Battery pack |
| WO2013018331A1 (en) * | 2011-07-29 | 2013-02-07 | パナソニック株式会社 | Battery storage block and battery module |
| JPWO2013018331A1 (en) * | 2011-07-29 | 2015-03-05 | パナソニック株式会社 | Battery storage block and battery module |
| US9246147B2 (en) | 2011-07-29 | 2016-01-26 | Panasonic Intellectual Property Management Co., Ltd. | Battery retainment block and battery module |
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