JP2012079442A - Vehicle battery pack - Google Patents
Vehicle battery pack Download PDFInfo
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- JP2012079442A JP2012079442A JP2010221147A JP2010221147A JP2012079442A JP 2012079442 A JP2012079442 A JP 2012079442A JP 2010221147 A JP2010221147 A JP 2010221147A JP 2010221147 A JP2010221147 A JP 2010221147A JP 2012079442 A JP2012079442 A JP 2012079442A
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- 230000001154 acute effect Effects 0.000 claims abstract description 13
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 8
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052987 metal hydride Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- -1 nickel metal hydride Chemical class 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- 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
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- Connection Of Batteries Or Terminals (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Description
本発明は車両に搭載される電池パックに関するものである。 The present invention relates to a battery pack mounted on a vehicle.
近年、低炭素社会の実現に向けて電気自動車（ＥＶ：Ｅｌｅｃｔｒｉｃ Ｖｅｈｉｃｌｅ）、およびハイブリッド車（Ｈｙｂｒｉｄ Ｖｅｈｉｃｌｅ）が注目されている。このような電気自動車、およびハイブリッド車はタイヤへ伝達される駆動力を発生させるための電動機を備える。この電動機の動作させるためのエネルギは二次電池から供給される。 2. Description of the Related Art In recent years, electric vehicles (EVs) and hybrid vehicles (Hybrid vehicles) have attracted attention for the realization of a low-carbon society. Such electric vehicles and hybrid vehicles include an electric motor for generating a driving force transmitted to the tire. Energy for operating the electric motor is supplied from the secondary battery.
特に近年、走行距離の延長と電池モジュールの配置の省スペース化を両立させるため、電池モジュールとして従来用いられてきた鉛電池から、エネルギ密度の高い二次電池（ニッケル水素充電池、または、リチウムイオン充電池）が用いられるようになっている。 Particularly in recent years, in order to achieve both extension of travel distance and space saving of battery module arrangement, secondary batteries (nickel metal hydride rechargeable battery or lithium ion) having high energy density have been used instead of lead batteries conventionally used as battery modules. Rechargeable battery) is used.
タイヤへ伝達される駆動力を電動機で発生させるためには数百ボルトもの高電圧を必要とするため、二次電池を複数備え出力電圧が高電圧となるような電池パックが車両に搭載されている。この電池パックはその出力電圧が非常に高電圧となるため、電池パックが損傷すると高電圧が車体に印加される可能性があり安全面で好ましくない。 In order to generate the driving force transmitted to the tire with an electric motor, a high voltage of several hundred volts is required. Therefore, a battery pack having a plurality of secondary batteries and a high output voltage is mounted on the vehicle. Yes. Since this battery pack has an extremely high output voltage, if the battery pack is damaged, a high voltage may be applied to the vehicle body, which is not preferable in terms of safety.
そこで、従来の車両用電池パックとしては、所定の回路遮断条件が成立すると、リレーにより電池パックのと外部の電気的接続を遮断するものがある（例えば、特許文献１）。また、別の例として、車両に衝撃が加わると、おもりがトリガを移動させ、開閉器とトリガとの係合が外れるようにすることで開閉器がばねの力により開かれ、電気的接続を遮断するものがある（例えば、特許文献２）。 Therefore, as a conventional battery pack for vehicles, there is a battery pack that shuts off an electrical connection between the battery pack and the outside by a relay when a predetermined circuit cutoff condition is satisfied (for example, Patent Document 1). As another example, when an impact is applied to the vehicle, the weight moves the trigger so that the engagement between the switch and the trigger is released, so that the switch is opened by the force of the spring, and the electrical connection is established. There is something that blocks (for example, Patent Document 2).
従来の車両用電池パックのように、リレーにより電気的接続を遮断する場合、このリレーおよびこのリレーを制御する制御部の信頼性が問題となる。なぜなら、リレー自体が比較的複雑な装置であり、さらに制御部は電力供給を必要とするものであるので、ともに車両が衝撃を受けた場合の動作を保証しにくいからである。そのため、車両が受けた衝撃により、リレーが破損して制御部が制御しても電気的に切断されない、もしくは、制御部が破損して正常に回路遮断条件を判定できないような場合が起こり得る。 When the electrical connection is interrupted by a relay as in a conventional vehicle battery pack, the reliability of the relay and the control unit that controls the relay becomes a problem. This is because the relay itself is a relatively complicated device, and the control unit requires power supply, so that it is difficult to guarantee the operation when the vehicle receives an impact. For this reason, there may occur a case where the relay is damaged and is not electrically disconnected even if the control unit controls due to the impact received by the vehicle, or the control unit is damaged and the circuit interruption condition cannot be normally determined.
また、おもりとトリガを用いる開閉器においても同様に、機構が複雑であるため車両が受けた衝撃によりこの機構が破損してしまい意図したように電気的に切断されない場合があり得る。 Similarly, in a switch using a weight and a trigger, since the mechanism is complicated, the mechanism may be damaged by an impact received by the vehicle and may not be electrically disconnected as intended.
本発明は、従来の問題を解決するためになされたものであり、電力供給不要で、かつ、単純な機構により車両用電池パックが外部に出力するの電力の電気的接続を遮断することができる車両用電池パックを提供することを目的とする。 The present invention has been made to solve the conventional problems, and does not require power supply, and can cut off the electrical connection of the power output from the vehicle battery pack to the outside by a simple mechanism. It aims at providing the battery pack for vehicles.
本発明は、電極を有する電池モジュールと、この電池モジュールの電極と電気的に接続した外部出力端子とを備えた車両に搭載する電池パックであって、前記電池モジュールの電極と前記外部出力端子との電気的接続を遮断するための押圧体を備え、前記電池モジュールの電極は前記車両の進行方向に対して鋭角となる平面である第１の平面を有する形状であり、前記押圧体は前記車両の進行方向に対して鋭角となる平面である第２の平面を有する形状であり、この押圧体の第１の平面と前記電池モジュールの電極の第２の平面とが互いに接することで電気的に接続するものである。 The present invention is a battery pack mounted on a vehicle including a battery module having an electrode and an external output terminal electrically connected to the electrode of the battery module, the electrode of the battery module, the external output terminal, The battery module has a shape having a first plane that is an acute angle with respect to the traveling direction of the vehicle, and the pressure body is the vehicle. The first plane of the pressing body and the second plane of the electrode of the battery module are in contact with each other electrically with a second plane which is a plane having an acute angle with respect to the traveling direction of To connect.
本発明は、電池モジュールの電極が車両の進行方向に対して鋭角となる平面である第１の平面を有し、押圧体が車両の進行方向に対して鋭角となる平面である第２の平面を有し、第１の平面と第２の平面とが互いに接するようにしている。 The present invention has a first plane in which the electrode of the battery module is a plane that has an acute angle with respect to the traveling direction of the vehicle, and a second plane in which the pressing body is a plane that has an acute angle with respect to the traveling direction of the vehicle. The first plane and the second plane are in contact with each other.
車両に衝撃がかかると、その衝撃が押圧体の第２の平面に伝播し、第１の平面と第２の平面とがスライドして外れる。これにより電気的接続を遮断することができる。 When an impact is applied to the vehicle, the impact propagates to the second plane of the pressing body, and the first plane and the second plane slide and come off. Thereby, electrical connection can be interrupted.
以上により、本発明は、電力供給不要で、かつ、単純な機構により車両用電池パックが外部に出力するの電力の電気的接続を遮断することができるという効果を奏する。 As described above, the present invention has an effect that the electric connection of the electric power output from the vehicle battery pack to the outside can be cut off by a simple mechanism without the need for electric power supply.
（実施の形態１）
以下、本発明の実施の形態１における車両用電池パックについて図１〜図３を参照しながら説明する。図１〜図３は本発明の実施の形態１における車両用電池パックの構造を説明する図である。
(Embodiment 1)
Hereinafter, the vehicle battery pack according to Embodiment 1 of the present invention will be described with reference to FIGS. 1-3 is a figure explaining the structure of the battery pack for vehicles in Embodiment 1 of this invention.
車両用電池パック１は図１に示すように、外部から電力を取り出すための電極である負の外部出力端子２および正の外部出力端子３を備える。負の外部出力端子２は配線５を介して電池モジュール４の負極と電気的に接続する。また、正の外部出力端子３は配線６を介して電池モジュール４の正極（電極７）と電気的に接続する。 As shown in FIG. 1, the vehicle battery pack 1 includes a negative external output terminal 2 and a positive external output terminal 3 which are electrodes for taking out electric power from the outside. The negative external output terminal 2 is electrically connected to the negative electrode of the battery module 4 through the wiring 5. The positive external output terminal 3 is electrically connected to the positive electrode (electrode 7) of the battery module 4 through the wiring 6.
より詳細には、正の外部出力端子３は配線６と接続され、この配線６は押圧体８が有する導電部１０
に電気的に接続され、この導電部１０が電極７と接触することで電気的に接続される。また、電池モジュール４の負極側は弾性体９を介して車両用電池パック１の筐体と固定されている。
More specifically, the positive external output terminal 3 is connected to the wiring 6, and the wiring 6 is a conductive portion 10 included in the pressing body 8.
Are electrically connected to each other when the conductive portion 10 is in contact with the electrode 7. Further, the negative electrode side of the battery module 4 is fixed to the housing of the vehicle battery pack 1 via an elastic body 9.
以下、車両用電池パック１の主要部について詳細に説明する。 Hereinafter, the main part of the vehicle battery pack 1 will be described in detail.
電池モジュール４は複数の電池セルを直列に接続して構成している。これら電池セルはいずれも二次電池である。電池セルとしては、例えば、ニッケル水素電池、リチウムイオン電池を用いることができる。 The battery module 4 is configured by connecting a plurality of battery cells in series. These battery cells are all secondary batteries. As the battery cell, for example, a nickel metal hydride battery or a lithium ion battery can be used.
この電池モジュール４は、正極（電極７）と負極（図示なし）とを有する。電極７は車両の進行方向（図１の矢印Ａ）に対して鋭角となる平面（以下、第１の平面）を有する形状である。ここでいう「進行方向」とは、車両が前進する場合のみならず、車両が後進する方向をも含む概念である。以後の説明でも同様である。この電極７は後述する押圧体８と互いに接することで電気的に接続する。 The battery module 4 has a positive electrode (electrode 7) and a negative electrode (not shown). The electrode 7 has a shape having a plane (hereinafter referred to as a first plane) having an acute angle with respect to the traveling direction of the vehicle (arrow A in FIG. 1). Here, the “traveling direction” is a concept that includes not only the case where the vehicle moves forward but also the direction in which the vehicle moves backward. The same applies to the following description. The electrode 7 is electrically connected by being in contact with a pressing body 8 described later.
なお、電極７の材料としては、炭素棒、金属棒などが使用可能である。 In addition, as a material of the electrode 7, a carbon rod, a metal rod, etc. can be used.
次に、図２を用いて押圧体８について説明する。通常使用状態では、電極７と押圧体８とは互いに接しているが、本図では説明を容易にするために離間した図にて説明する。 Next, the pressing body 8 will be described with reference to FIG. In the normal use state, the electrode 7 and the pressing body 8 are in contact with each other.
押圧体８は、電池モジュール４の電極７と正の外部出力端子３との電気的接続を遮断するための部材である。押圧体８は、電極７と接する部材である導電部１０を有する。具体的にはこの導電部１０の先端部１１が導電性をもち、電極７と接触する。 The pressing body 8 is a member for cutting off the electrical connection between the electrode 7 of the battery module 4 and the positive external output terminal 3. The pressing body 8 has a conductive portion 10 that is a member in contact with the electrode 7. Specifically, the tip portion 11 of the conductive portion 10 has conductivity and contacts the electrode 7.
この押圧体８が有する先端部１１は、車両の進行方向に対して鋭角となる平面（以下、第２の平面）を有する形状である。この鋭角とは図２の角度θである。なお、第１の平面、および第２の平面はそれぞれ全面が導電可能な面となっている。
この先端部１１の第１の平面と電極７の第２の平面とが互いに接することで電気的に接続する。
The front end portion 11 of the pressing body 8 has a shape having a plane (hereinafter referred to as a second plane) having an acute angle with respect to the traveling direction of the vehicle. This acute angle is the angle θ in FIG. The first plane and the second plane are all conductive surfaces.
The first plane of the tip 11 and the second plane of the electrode 7 are electrically connected to each other.
前述した電極７が有する第１の平面の車両の進行方向に対する角度も第２の平面の角度と同じく角度θである。これら２つの角度は略同一である。押圧体８は本体部１２を有し、この本体部１２は車両の進行方向にて車両の車体の一部に固定されている。 The angle of the first plane of the electrode 7 described above with respect to the traveling direction of the vehicle is also the angle θ, similar to the angle of the second plane. These two angles are substantially the same. The pressing body 8 has a main body portion 12, and the main body portion 12 is fixed to a part of the vehicle body of the vehicle in the traveling direction of the vehicle.
弾性体９は電池モジュール４の電極７に対する逆の端を、電池パック１の筐体と固定するための部材である。弾性体９としては、ばね、ゴム、湾曲可能な金属、または、湾曲可能なプラスチックなどが使用可能である。 The elastic body 9 is a member for fixing the end opposite to the electrode 7 of the battery module 4 to the casing of the battery pack 1. As the elastic body 9, a spring, rubber, a bendable metal, a bendable plastic, or the like can be used.
次に、図３を用いて車両が事故等により衝撃を受けた場合の車両用電池パック１について説明する。車両が事故等により衝撃を受けると車両の進行方向（図３の矢印Ｂ）から衝撃が伝播する。この衝撃は押圧体８の本体部１２から、導電部１０、先端部１１へと順に伝播する。先端部１１に伝播した衝撃により、先端部１１の第２の平面は、電極７が有する第１の平面とスライドし外れる。これにより第１の平面と第２の平面とが非接触となり、電気的に遮断される。このとき、電池モジュール４は弾性体９がたわむことにより、その位置が若干変位する。 Next, the vehicle battery pack 1 when the vehicle receives an impact due to an accident or the like will be described with reference to FIG. When the vehicle receives an impact due to an accident or the like, the impact propagates from the traveling direction of the vehicle (arrow B in FIG. 3). This impact propagates in order from the main body portion 12 of the pressing body 8 to the conductive portion 10 and the tip portion 11. Due to the impact propagated to the tip portion 11, the second plane of the tip portion 11 slides away from the first plane of the electrode 7. As a result, the first plane and the second plane are not in contact with each other and are electrically disconnected. At this time, the battery module 4 is slightly displaced as the elastic body 9 bends.
（変形例１）
図４を用いて本実施の形態の変形例を説明する。
(Modification 1)
A modification of the present embodiment will be described with reference to FIG.
車両用電池パック１が備える電池モジュール４は図４に示すように複数であってもよい。電池モジュール４を複数備える場合は、電池モジュール４の間を直列に接続するために、押圧体８の内部にて電池モジュール４間を電気的に接続する配線を備える。 A plurality of battery modules 4 included in the vehicle battery pack 1 may be provided as shown in FIG. In the case where a plurality of battery modules 4 are provided, in order to connect the battery modules 4 in series, wiring that electrically connects the battery modules 4 is provided inside the pressing body 8.
例えば、図４の電池モジュール４ａの電極７ａは、電池モジュール４ｂの電極７ｂと押圧体８の内部で電気的に接続している。電極７ｃと電極７ｄにおいても同様である。 For example, the electrode 7 a of the battery module 4 a in FIG. 4 is electrically connected to the electrode 7 b of the battery module 4 b inside the pressing body 8. The same applies to the electrodes 7c and 7d.
電池モジュール４の押圧体８の逆端はそれぞれ弾性体９（弾性体９ａ〜弾性体９ｄ）を介して電池パック１の筐体と固定されている。電極７ａ〜電極７ｄと押圧体８との接合については図１と同様である。 The opposite end of the pressing body 8 of the battery module 4 is fixed to the casing of the battery pack 1 via an elastic body 9 (elastic body 9a to elastic body 9d). The joining of the electrodes 7a to 7d and the pressing body 8 is the same as in FIG.
このようにすることで、複数の電池モジュール４を同時に遮断できるので、車両用電池パック１内の最も高い電圧は電池モジュール４の１つ分の電圧となり、安全性を高めることができる。 By doing in this way, since the several battery module 4 can be interrupted | blocked simultaneously, the highest voltage in the battery pack 1 for vehicles becomes the voltage for one of the battery modules 4, and safety | security can be improved.
（変形例２）
図５を用いて本実施の形態の別の変形例を説明する。
(Modification 2)
Another modification of the present embodiment will be described with reference to FIG.
車両用電池パック１が備える電池モジュール４は、図５に示すように複数で、かつ、車両の進行方向に並べて配置することも可能である。この場合、電池モジュール４間、例えば、電池モジュール４ａと電池モジュール４ｂとの間を、図１の電極７および押圧体８と同じ形状にて互いに接することで電気的に接続する。電池モジュール４ｂと電池モジュール４ｃとの間においても同様である。また、電池モジュール４の車両用電池パック１側の端は弾性体９ａおよび弾性体９ｂにより電池パック１の筐体と固定される。このように電池モジュール４を車両の進行方向に並べて配置できると、車両用電池パック１の形状設計の自由度を上げることができる。 A plurality of battery modules 4 included in the vehicle battery pack 1 can be arranged side by side in the traveling direction of the vehicle as shown in FIG. In this case, the battery modules 4, for example, the battery module 4 a and the battery module 4 b are electrically connected by contacting each other in the same shape as the electrode 7 and the pressing body 8 of FIG. 1. The same applies to the battery module 4b and the battery module 4c. The end of the battery module 4 on the vehicle battery pack 1 side is fixed to the casing of the battery pack 1 by an elastic body 9a and an elastic body 9b. When the battery modules 4 can be arranged side by side in the traveling direction of the vehicle in this way, the degree of freedom in designing the shape of the vehicle battery pack 1 can be increased.
以上のように本発明の一実施の形態における車両用電池パックは、電池モジュール４の電極７が車両の進行方向に対して鋭角となる平面である第１の平面を有し、押圧体８が車両の進行方向に対して鋭角となる平面である第２の平面を有し、第１の平面と第２の平面とが互いに接するようにしている。 As described above, the vehicle battery pack according to the embodiment of the present invention has the first plane in which the electrode 7 of the battery module 4 is an acute angle with respect to the traveling direction of the vehicle, and the pressing body 8 is A second plane that is an acute angle with respect to the traveling direction of the vehicle is provided, and the first plane and the second plane are in contact with each other.
車両に衝撃がかかると、その衝撃が押圧体８の第２の平面に伝播し、図３で説明したように第１の平面と第２の平面とがスライドして外れる。これにより、車両用電池パックが外部に出力するの電力の電気的接続を遮断される。以上により、電力供給不要で、かつ、単純な機構により車両用電池パックが外部に出力するの電力の電気的接続を遮断することができるという効果を奏する。 When an impact is applied to the vehicle, the impact propagates to the second plane of the pressing body 8, and the first plane and the second plane slide and come off as described with reference to FIG. Thereby, the electrical connection of the electric power that the vehicle battery pack outputs to the outside is cut off. As described above, there is an effect that the electric connection of the electric power output from the vehicle battery pack to the outside can be cut off by a simple mechanism without supplying power.
なお、本実施の形態では、電池モジュール４の正極（電極７）の側が押圧体８と接合すると説明したが電池モジュール４の負極側であっても同様の効果を奏することができる。 In the present embodiment, it has been described that the positive electrode (electrode 7) side of the battery module 4 is joined to the pressing body 8, but the same effect can be obtained even on the negative electrode side of the battery module 4.
なお、図２において矢印Ｂは車両の進行方向と記載したが、車両の側面とすることも可能である。 In addition, although the arrow B was described as the advancing direction of the vehicle in FIG. 2, it can also be a side surface of the vehicle.
なお、本実施の形態では、電池モジュール４を弾性体９で車両用電池パック１の筐体と固定している。このようにすることにより、電池モジュール４が弾性体９によりその位置が変位可能となる。 In the present embodiment, the battery module 4 is fixed to the housing of the vehicle battery pack 1 by the elastic body 9. By doing so, the position of the battery module 4 can be displaced by the elastic body 9.
弾性体９で固定することで、第１の平面と第２の平面とがスライドして外れる際、電池モジュール４が変位することで、電極７と押圧体８とを円滑に外すことができるという効果を奏する。 By fixing with the elastic body 9, when the 1st plane and the 2nd plane slide and remove | deviate, the battery module 4 displaces and can say that the electrode 7 and the press body 8 can be removed smoothly. There is an effect.
なお、本実施の形態では、押圧体８の本体部１２は車両の進行方向にて車両の車体の一部に固定されている。車両の進行方向にて固定することにより、車両の進行方向にかかる衝撃を分散させずに押圧体８に伝播させることができるので、確実に電気的接続を遮断することができるという効果を奏する。 In the present embodiment, the main body 12 of the pressing body 8 is fixed to a part of the vehicle body in the traveling direction of the vehicle. By fixing in the traveling direction of the vehicle, the impact applied in the traveling direction of the vehicle can be propagated to the pressing body 8 without being dispersed, so that an electrical connection can be reliably cut off.
なお、本実施の形態では、電極７が有する第１の平面と押圧体８が有する第２の平面との車両の進行方向に対する角度は略同一であると記載した。このようにすることにより、第１の平面と第２の平面とがスライドして外れる際に円滑に外すことができるという効果
を奏する。
In the present embodiment, it is described that the angles of the first plane of the electrode 7 and the second plane of the pressing body 8 with respect to the traveling direction of the vehicle are substantially the same. By doing in this way, there exists an effect that it can remove smoothly when the 1st plane and the 2nd plane slide and remove.
（実施の形態２）
以下、本発明の実施の形態２における車両用電池パックについて図６を参照しながら説明する。図６は本発明の実施の形態２における車両用電池パックの構造を説明する図である。なお、実施の形態１の構成と同様の構成を有するものについては、同一符号を付しその説明を省略し、相違点について詳述する。
(Embodiment 2)
Hereinafter, a vehicle battery pack according to Embodiment 2 of the present invention will be described with reference to FIG. FIG. 6 is a view for explaining the structure of the vehicle battery pack according to Embodiment 2 of the present invention. In addition, about what has the structure similar to the structure of Embodiment 1, the same code | symbol is attached | subjected, the description is abbreviate | omitted, and a difference is explained in full detail.
実施の形態１と実施の形態２との相違点は、実施の形態１では第１の平面および第２の平面の全面が導電可能な面であると記載したが、第１の平面および第２の平面が導電面と絶縁面との両方を有している点である。 The difference between the first embodiment and the second embodiment is that, in the first embodiment, the entire surfaces of the first plane and the second plane are conductive surfaces, but the first plane and the second plane are different. This plane has both a conductive surface and an insulating surface.
図６に示すように、電池モジュール４の電極７が有する第１の平面、および、押圧体８の導電部１０が有する第２の平面はいずれも導電面（導電面１３および導電面１５）と絶縁面（絶縁面１４および絶縁面１６）とを有する。 As shown in FIG. 6, the first plane of the electrode 7 of the battery module 4 and the second plane of the conductive portion 10 of the pressing body 8 are both conductive surfaces (conductive surface 13 and conductive surface 15). And insulating surfaces (insulating surface 14 and insulating surface 16).
通常の使用状態では、第１の平面の導電面（導電面１３）と第２の平面の導電面（導電面１５）とが互いに接することで電気的に接続している。車両に事故等で衝撃がかかると、第１の平面と第２の平面とがスライドするが、導電面１５が絶縁面１４の位置（導電面１３が絶縁面１６の位置）にまで変位すれば電気的接続が遮断される。 In a normal use state, the first flat conductive surface (conductive surface 13) and the second flat conductive surface (conductive surface 15) are in electrical contact with each other. When an impact is applied to the vehicle, the first plane and the second plane slide, but if the conductive surface 15 is displaced to the position of the insulating surface 14 (the conductive surface 13 is the position of the insulating surface 16). The electrical connection is interrupted.
このようにすることで、実施の形態１と比べて車両にかかる衝撃が小さい場合にも電気的接続を遮断することができるという効果を奏する。さらに、いきなり切り離されるわけではなく、接続面積が徐々に少なくなることでアークが飛ぶ可能性が少なくなるという効果もある。よって電極が溶着回避性が上がる効果もある。 By doing in this way, compared with Embodiment 1, there exists an effect that an electrical connection can be interrupted | blocked also when the impact concerning a vehicle is small. Furthermore, it is not suddenly disconnected, and there is an effect that the possibility of an arc is reduced by gradually reducing the connection area. Therefore, there is also an effect that the electrode can avoid welding.
また、電極７が有する第１の平面、または、押圧体８が有する第２の平面の一方の面上に突起を形成し、他方の面上にこの突起が挿入可能な穴を形成することができる。 Further, a protrusion may be formed on one surface of the first plane of the electrode 7 or the second plane of the pressing body 8, and a hole into which the protrusion can be inserted is formed on the other surface. it can.
図６においては、第１の平面に突起（突起１７）を形成し、第２の平面の面上にこの突起が挿入可能な溝（溝１８）を形成している。この溝１８は導電部１０の外周上に形成された溝でもよく、また、突起１７を挿入可能な穴であってもよい。突起１７は図６では円柱形で記載したが、四角柱、円錐、四角錐などの形状であってもよい。 In FIG. 6, a protrusion (protrusion 17) is formed on the first plane, and a groove (groove 18) into which the protrusion can be inserted is formed on the surface of the second plane. The groove 18 may be a groove formed on the outer periphery of the conductive portion 10 or a hole into which the protrusion 17 can be inserted. The protrusion 17 is described as a cylindrical shape in FIG. 6, but may have a shape such as a quadrangular prism, a cone, or a quadrangular pyramid.
押圧体８に衝撃がかかっても、突起１７により、第１の平面と第２の平面とがスライドが妨げられる。しかし、押圧体８にさらに大きい衝撃がかかると、突起１７が折れてスライドが開始する。 Even if an impact is applied to the pressing body 8, the projection 17 prevents the first plane and the second plane from sliding. However, when a larger impact is applied to the pressing body 8, the protrusion 17 is broken and sliding starts.
通常の車両の使用において、第１の平面と第２の平面とがスライドして外れることは回避する必要がある。そのために、この突起１７の強度を調整することで、押圧体８がどの程度の衝撃を受けた場合に第１の平面と第２の平面とがスライドして外れるかを微調整する必要がある。以上のように、突起１７と溝１８とを設け、突起１７の形状、材質等を変化させることでスライドを開始する衝撃の微調整が可能となるという効果を奏する。 In normal use of the vehicle, it is necessary to avoid that the first plane and the second plane slide off. Therefore, by adjusting the strength of the protrusion 17, it is necessary to finely adjust how much impact the pressing body 8 receives when the first plane and the second plane slide and come off. . As described above, by providing the protrusion 17 and the groove 18 and changing the shape, material, and the like of the protrusion 17, it is possible to finely adjust the impact for starting the slide.
特に、上記のように第１の平面、および、第２の平面が絶縁面を有する場合、第１の平面と第２の平面が全面、導電面である場合と比較して、少しのスライドで電気的接続が遮断されてしまう。このため、突起１７の形状、材質を変化させてスライドを開始する衝撃の程度を調整する意義は大きい。 In particular, when the first plane and the second plane have insulating surfaces as described above, the first plane and the second plane are all conductive surfaces, with a little slide. The electrical connection will be interrupted. For this reason, it is significant to change the shape and material of the protrusion 17 to adjust the degree of impact for starting the slide.
本発明は、車両に搭載される電池パック等として有用である。 The present invention is useful as a battery pack or the like mounted on a vehicle.
１ 車両用電池パック
２ 負の外部出力端子
３ 正の外部出力端子
４ 電池モジュール
５ 配線
６ 配線
７ 電極
８ 押圧体
９ 弾性体
１０ 導電部
１１ 先端部
１２ 本体部
１３ 導電面
１４ 絶縁面
１５ 導電面
１６ 絶縁面
１７ 突起
１８ 溝
DESCRIPTION OF SYMBOLS 1 Vehicle battery pack 2 Negative external output terminal 3 Positive external output terminal 4 Battery module 5 Wiring 6 Wiring 7 Electrode 8 Press body 9 Elastic body 10 Conductive part 11 Tip part 12 Main body part 13 Conductive surface 14 Insulating surface 15 Conductive surface 16 Insulating surface 17 Projection 18 Groove
Claims (6)
前記電池モジュールの電極と前記外部出力端子との電気的接続を遮断するための押圧体を備え、
前記電池モジュールの電極は前記車両の進行方向に対して鋭角となる平面である第１の平面を有する形状であり、
前記押圧体は前記車両の進行方向に対して鋭角となる平面である第２の平面を有する形状であり、
この押圧体の第１の平面と前記電池モジュールの電極の第２の平面とが互いに接することで電気的に接続することを特徴とする車両用電池パック。 A battery pack for a vehicle mounted on a vehicle comprising a battery module having an electrode and an external output terminal electrically connected to the electrode of the battery module,
A pressing body for blocking electrical connection between the electrode of the battery module and the external output terminal;
The electrode of the battery module has a shape having a first plane that is an acute angle with respect to the traveling direction of the vehicle,
The pressing body has a shape having a second plane that is an acute angle with respect to the traveling direction of the vehicle,
A battery pack for vehicles, wherein the first plane of the pressing body and the second plane of the electrode of the battery module are electrically connected to each other.
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