JP2003077436A - Battery pack and its manufacturing method - Google Patents
Battery pack and its manufacturing methodInfo
- Publication number
- JP2003077436A JP2003077436A JP2001263706A JP2001263706A JP2003077436A JP 2003077436 A JP2003077436 A JP 2003077436A JP 2001263706 A JP2001263706 A JP 2001263706A JP 2001263706 A JP2001263706 A JP 2001263706A JP 2003077436 A JP2003077436 A JP 2003077436A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- resin
- battery pack
- temperature protection
- holder
- 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.)
- Granted
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、温度保護素子を備
えるパック電池とその製造方法に関する。とくに、本発
明は、電池を金型の成形室に仮り止めして、電池に連結
してプラスチック製の樹脂成形部を成形しているパック
電池とその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery pack having a temperature protection element and a method for manufacturing the same. In particular, the present invention relates to a battery pack in which a battery is temporarily fixed in a molding chamber of a mold and is connected to the battery to form a plastic resin molding portion, and a manufacturing method thereof.
【０００２】[0002]
【従来の技術】パック電池の外装ケースを樹脂成形部と
し、これに電池をインサートしてなるパック電池は開発
されている。このパック電池は、特開2000-315483号公
報に記載される。このパック電池は、図１に示すよう
に、外装ケースとなる樹脂成形部を成形するときに、プ
リント基板５や電池２をインサートして固定する。この
パック電池は、従来のパック電池のように、電池とプリ
ント基板を別に成形しているケースに入れて組み立てる
必要がない。ケースとなる樹脂成形部を成形する工程
で、プリント基板や電池を定位置に固定して、安価に多
量生産できる。2. Description of the Related Art A battery pack has been developed in which the outer case of the battery pack is a resin molding part and the battery is inserted into the resin molding part. This battery pack is described in JP-A-2000-315483. As shown in FIG. 1, in this battery pack, the printed circuit board 5 and the battery 2 are inserted and fixed when the resin molding portion that becomes the outer case is molded. Unlike the conventional battery pack, this battery pack does not need to be assembled by putting the battery and the printed circuit board in a separately molded case. In the process of molding the resin molding part that becomes the case, the printed circuit board and the battery can be fixed in place and mass production can be carried out at low cost.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、この構
造のパック電池は、電池の温度が異常に高くなるのを防
止する温度保護素子を設ける場合、温度保護素子を正常
に動作させるのが難しい欠点がある。それは、樹脂成形
部を成形する溶融状態の合成樹脂が、温度保護素子を過
熱して電気特性に悪い影響を与えるからである。電池の
温度保護素子には、たとえばＰＴＣや温度ヒューズが使
用される。ＰＴＣが溶融した合成樹脂に過熱されるとト
リップして内部抵抗が大きくなる。ＰＴＣの内部抵抗が
増加すると、パック電池の出力電圧が低下するばかりで
なく、大電流を流すことができなくなって、パック電池
の電気性能を著しく低下させる。温度ヒューズは過熱さ
れると断線して再使用できなくなることがある。However, the battery pack of this structure has a drawback that it is difficult to operate the temperature protection device normally when the temperature protection device is provided to prevent the battery temperature from rising abnormally. is there. This is because the molten synthetic resin that molds the resin molding portion overheats the temperature protection element and adversely affects the electrical characteristics. A PTC or a thermal fuse, for example, is used for the temperature protection element of the battery. When the PTC is overheated by the molten synthetic resin, it trips and the internal resistance increases. When the internal resistance of the PTC increases, not only the output voltage of the battery pack decreases, but also a large current cannot flow, and the electrical performance of the battery pack deteriorates significantly. If the thermal fuse is overheated, it may break and cannot be reused.
【０００４】また、樹脂成形部にインサート成形して、
ここに埋設している温度保護素子は、電池温度を速やか
に検出できなくなる欠点もある。それは、温度保護素子
と電池との間に、熱伝導の悪い合成樹脂が介在されるか
らである。温度保護素子が電池温度を速やかに検出でき
ないと、電池温度が異常に高くなったときに、速やかに
電流を遮断して電池を有効に保護できなくなる。この弊
害を避けるために、温度保護素子が電流を遮断する設定
温度を低くすると、電池を正常に使用できる温度範囲が
狭くなってしまう。正常な温度範囲で使用しているとき
に、温度保護素子が電流を遮断するからである。In addition, by insert molding in the resin molding part,
The temperature protection element embedded here has a drawback that the battery temperature cannot be detected quickly. This is because a synthetic resin having poor heat conduction is interposed between the temperature protection element and the battery. If the temperature protection element cannot detect the battery temperature promptly, when the battery temperature becomes abnormally high, the current cannot be promptly cut off to effectively protect the battery. In order to avoid this harmful effect, if the set temperature at which the temperature protection element cuts off the current is lowered, the temperature range in which the battery can be normally used becomes narrow. This is because the temperature protection element cuts off the current when it is used in the normal temperature range.
【０００５】本発明は、このような欠点を解決すること
を目的に開発されたものである。本発明の重要な目的
は、温度保護素子の正常な動作を保証しながら、樹脂成
形部にインサート成形して固定できるパック電池とその
製造方法を提供することにある。また、本発明の他の大
切な目的は、温度保護素子で電池温度を速やかに検出し
て、電池を保護しながら充放電できるパック電池とその
製造方法を提供することにある。The present invention was developed for the purpose of solving such drawbacks. An important object of the present invention is to provide a battery pack that can be insert-molded and fixed in a resin molding portion while guaranteeing the normal operation of the temperature protection device, and a manufacturing method thereof. Another important object of the present invention is to provide a battery pack and a method for manufacturing the battery pack, in which the battery temperature can be quickly detected by a temperature protection element and the battery can be charged and discharged while being protected.
【０００６】[0006]
【課題を解決するための手段】本発明のパック電池は、
電池２と、この電池２に接続している温度保護素子６
と、この温度保護素子６を定位置に配設しているホルダ
ー４と、このホルダー４を電池２に連結してなる樹脂成
形部１とを備える。樹脂成形部１は、ホルダー４をイン
サート成形して電池２の定位置に配設して、電池２とホ
ルダー４と温度保護素子６と樹脂成形部１を一体的に連
結している。ホルダー４は、温度保護素子６を配設でき
るスペースであって、樹脂成形部１を成形する合成樹脂
の侵入を阻止する樹脂侵入阻止室９を有する。パック電
池は、この樹脂侵入阻止室９に温度保護素子６を配設し
て、温度保護素子６が溶融された合成樹脂による悪い影
響を受けるのを阻止している。The battery pack of the present invention comprises:
Battery 2 and temperature protection element 6 connected to this battery 2
And a holder 4 in which the temperature protection element 6 is arranged at a fixed position, and a resin molding portion 1 in which the holder 4 is connected to the battery 2. In the resin molding portion 1, the holder 4 is insert-molded and arranged at a fixed position of the battery 2, and the battery 2, the holder 4, the temperature protection element 6, and the resin molding portion 1 are integrally connected. The holder 4 is a space in which the temperature protection element 6 can be arranged, and has a resin intrusion prevention chamber 9 for preventing the intrusion of the synthetic resin forming the resin molding portion 1. In the battery pack, the temperature protection element 6 is provided in the resin intrusion prevention chamber 9 to prevent the temperature protection element 6 from being adversely affected by the molten synthetic resin.
【０００７】温度保護素子６は、ＰＴＣまたは温度ヒュ
ーズとすることができる。樹脂侵入阻止室９は、温度保
護素子６を保持する凸部１６を設けて、この凸部１６を
温度保護素子６に局部的に接触させることができる。さ
らに、パック電池は、電池２の表面を樹脂侵入阻止室９
に露出させて、樹脂侵入阻止室９に配設される温度保護
素子６を電池２に接近させることができる。樹脂成形部
１は、プリント基板５を定位置に連結しているホルダー
４をインサート成形して固定することができる。プリン
ト基板は、出力端子を設けて、この出力端子を樹脂成形
部に設けた電極窓から外部に露出させることができる。The temperature protection element 6 can be a PTC or a thermal fuse. The resin intrusion prevention chamber 9 can be provided with a convex portion 16 that holds the temperature protection element 6, and the convex portion 16 can be brought into local contact with the temperature protection element 6. Further, in the battery pack, the surface of the battery 2 is covered with the resin intrusion prevention chamber 9
The temperature protection element 6 disposed in the resin invasion prevention chamber 9 can be brought close to the battery 2 by exposing the temperature protection element 6 to the battery 2. The resin molding part 1 can insert-mold and fix the holder 4 which connects the printed circuit board 5 to a fixed position. The printed circuit board can be provided with an output terminal, and the output terminal can be exposed to the outside through an electrode window provided in the resin molding portion.
【０００８】本発明のパック電池の製造方法は、電池２
に接して樹脂成形部１を成形するときに、ホルダー４を
樹脂成形部１にインサート成形して電池２に連結させ
る。さらに、本発明の製造方法は、ホルダー４に、樹脂
成形部１を成形する溶融した合成樹脂の侵入を阻止する
樹脂侵入阻止室９を設け、この樹脂侵入阻止室９に温度
保護素子６を配設して樹脂成形部１を成形する。The method of manufacturing a battery pack according to the present invention includes a battery 2
When the resin molding part 1 is molded by contacting with the holder 1, the holder 4 is insert-molded in the resin molding part 1 and connected to the battery 2. Further, according to the manufacturing method of the present invention, the holder 4 is provided with the resin intrusion prevention chamber 9 for preventing the invasion of the molten synthetic resin for molding the resin molding portion 1, and the temperature protection element 6 is arranged in the resin intrusion prevention chamber 9. Then, the resin molding part 1 is molded.
【０００９】本発明の製造方法は、電池２と、樹脂侵入
阻止室９に温度保護素子６を配設しているホルダー４を
金型１０の成形室１１に仮り止めし、金型１０の成形室
１１に溶融状態の合成樹脂を注入して、樹脂成形部１を
成形することができる。さらに、本発明の製造方法は、
金型１０の成形室１１に注入される溶融状態の合成樹脂
で、ホルダー４を電池２に押し付けて樹脂成形部１を成
形することができる。In the manufacturing method of the present invention, the battery 2 and the holder 4 in which the temperature protection element 6 is arranged in the resin intrusion prevention chamber 9 are temporarily fixed to the molding chamber 11 of the mold 10 to mold the mold 10. The resin molding part 1 can be molded by injecting a synthetic resin in a molten state into the chamber 11. Furthermore, the manufacturing method of the present invention,
With the molten synthetic resin injected into the molding chamber 11 of the mold 10, the holder 4 can be pressed against the battery 2 to mold the resin molding portion 1.
【００１０】さらに、本発明の製造方法は、温度保護素
子６のリード６Ｂ、６Ａを電池２の電極２Ｂとプリント
基板５に接続し、温度保護素子６でプリント基板５を電
池２に連結する状態で、電池２とホルダー４とプリント
基板５を金型１０の成形室１に仮止めして樹脂成形部１
を成形することができる。さらに、プリント基板５は、
温度保護素子６のリード６Ａ、６Ｂと電極リード７、８
の両方で電池２に接続することができる。Further, according to the manufacturing method of the present invention, the leads 6B and 6A of the temperature protection device 6 are connected to the electrode 2B of the battery 2 and the printed circuit board 5, and the printed circuit board 5 is connected to the battery 2 by the temperature protection device 6. Then, the battery 2, the holder 4, and the printed circuit board 5 are temporarily fixed to the molding chamber 1 of the mold 10 and the resin molding portion 1
Can be molded. Furthermore, the printed circuit board 5 is
Leads 6A and 6B of the temperature protection element 6 and electrode leads 7 and 8
Both can be connected to the battery 2.
【００１１】[0011]
【発明の実施の形態】以下、本発明の実施例を図面に基
づいて説明する。ただし、以下に示す実施例は、本発明
の技術思想を具体化するためのパック電池とその製造方
法を例示するものであって、本発明はパック電池とその
製造方法を以下のものに特定しない。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. However, the examples described below exemplify the battery pack and its manufacturing method for embodying the technical idea of the present invention, and the present invention does not specify the battery pack and its manufacturing method as follows. .
【００１２】さらに、この明細書は、特許請求の範囲を
理解しやすいように、実施例に示される部材に対応する
番号を、「特許請求の範囲の欄」、および「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、特許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 make the claims easy to understand, the numbers corresponding to the members shown in the embodiments are referred to as "claims column" and "to solve the problems." It is added to the members shown in "Means column".
However, the members shown in the claims are not limited to the members of the embodiment.
【００１３】図２ないし図４に示すパック電池は、電池
２とホルダー４と温度保護素子６を樹脂成形部１にイン
サート成形して固定している。図２は、パック電池の全
体を示す。このパック電池は、角型電池の３辺に樹脂成
形部１を成形して設けている。この樹脂成形部１を成形
するときに、電池２とホルダー４と温度保護素子６をイ
ンサート成形して固定している。図３は、樹脂成形部１
を成形していないパック電池を示し、図４は、パーツを
分解した斜視図を示す。In the battery pack shown in FIGS. 2 to 4, the battery 2, the holder 4, and the temperature protection element 6 are insert-molded and fixed to the resin molding portion 1. FIG. 2 shows the entire battery pack. In this battery pack, a resin molding portion 1 is formed on three sides of a prismatic battery. When molding the resin molding portion 1, the battery 2, the holder 4, and the temperature protection element 6 are insert-molded and fixed. FIG. 3 shows the resin molding part 1.
Fig. 4 shows a battery pack in which parts are not molded, and Fig. 4 is an exploded perspective view of parts.
【００１４】これ等の図に示すパック電池は、電池２
と、この電池２に接続される温度保護素子６と、保護回
路を実装するプリント基板５と、プリント基板５と温度
保護素子６を定位置に固定するホルダー４と、ホルダー
４を電池２に連結している樹脂成形部１を備える。The battery pack shown in these figures is the battery 2
A temperature protection element 6 connected to the battery 2, a printed circuit board 5 on which a protection circuit is mounted, a holder 4 for fixing the printed circuit board 5 and the temperature protection element 6 in place, and the holder 4 connected to the battery 2. The resin molding part 1 is provided.
【００１５】電池２は、リチウムイオン電池、ニッケル
−水素電池、ニッケル−カドミウム電池等の充電できる
二次電池である。さらに、図の電池２は、薄い角型電池
で、外装缶２Ａの両側を湾曲面として、外装缶２Ａの四
隅のコーナー部を面取りした形状としている。薄い角型
電池にリチウムイオン電池を使用すると、パック電池全
体の容量に対する充電容量を大きくできる特長がある。The battery 2 is a rechargeable secondary battery such as a lithium ion battery, a nickel-hydrogen battery or a nickel-cadmium battery. Further, the battery 2 shown in the figure is a thin prismatic battery, and has a shape in which both sides of the outer can 2A have curved surfaces and four corners of the outer can 2A are chamfered. Using a lithium-ion battery for the thin prismatic battery has the feature that the charging capacity relative to the capacity of the entire battery pack can be increased.
【００１６】プリント基板５は、電池２の保護回路を実
現する電子部品を実装している。この図のパック電池
は、保護回路をプリント基板５に実装するが、保護回路
を小さなＩＣとして、樹脂成形部に配設することもでき
る。このパック電池は、プリント基板を省略できる。さ
らに、図示しないが、プリント基板には、出力端子を固
定して、出力端子を樹脂成形部に設けた電極窓からパッ
ク電池の外部に露出させることもできる。The printed circuit board 5 is mounted with electronic parts for realizing a protection circuit for the battery 2. In the battery pack shown in this figure, the protection circuit is mounted on the printed circuit board 5, but the protection circuit may be provided as a small IC in the resin molding portion. This battery pack can omit the printed circuit board. Further, although not shown, the output terminal may be fixed to the printed board so that the output terminal is exposed to the outside of the battery pack through the electrode window provided in the resin molding portion.
【００１７】図のパック電池は、温度保護素子６とプリ
ント基板５を金型の正確な位置に仮り止めして樹脂成形
部１にインサートするためのホルダー４を備える。ホル
ダー４は、樹脂成形部１とは別にプラスチックで成形さ
れる。このホルダー４は、電池２と共に樹脂成形部１に
インサート成形して固定される。すなわち、プラスチッ
ク製の樹脂成形部１を成形する金型にホルダー４と電池
２を仮り止めし、金型の成形室に溶融状態の合成樹脂を
注入して樹脂成形部１が成形される。成形室に仮り止さ
れたホルダー４と電池２は、一部を樹脂成形部１に埋設
して固定される。The battery pack shown in the figure is provided with a holder 4 for temporarily fixing the temperature protection element 6 and the printed circuit board 5 to an accurate position of the mold and inserting them into the resin molding part 1. The holder 4 is molded of plastic separately from the resin molding part 1. The holder 4 is insert-molded and fixed to the resin molding portion 1 together with the battery 2. That is, the holder 4 and the battery 2 are temporarily fixed to a mold for molding the plastic resin molding part 1, and the molten synthetic resin is injected into the molding chamber of the mold to mold the resin molding part 1. The holder 4 and the battery 2 temporarily fixed in the molding chamber are partially embedded in the resin molding portion 1 and fixed.
【００１８】図のパック電池は、プリント基板５と温度
保護素子６を定位置に保持する状態で、ホルダー４を樹
脂成形部１にインサート成形している。ホルダー４は、
温度保護素子６を配設する樹脂侵入阻止室９を有する。
温度保護素子６は、電池２が加熱されて、設定温度より
も高くなると電流を遮断する素子で、ＰＴＣや温度ヒュ
ーズである。樹脂侵入阻止室９は、温度保護素子６を配
設するスペースであって、樹脂成形部１を成形するとき
に、溶融した合成樹脂の侵入を阻止する閉鎖室である。
図４と図５のホルダー４は、周壁４Ａの開口部を樹脂注
入阻止壁４Ｂで閉塞して樹脂侵入阻止室９を形成してい
る。この樹脂侵入阻止室９は、電池２との対向面を開口
しているが、この開口部を電池２で閉塞している。開口
部を電池２で閉塞するために、周壁４Ａは電池２の側面
に隙間なく密着する形状、いいかえると電池２の側面に
沿う形状に成形される。開口部を電池２で閉塞する樹脂
侵入阻止室９は、ここに配設される温度保護素子６を電
池２の表面に接近できる。また、温度保護素子６と電池
２との間に温度を遮断するものがない。このため、温度
保護素子６は、電池２の異常な温度上昇を速やかに検出
して電流を遮断できる。In the battery pack shown in the figure, the holder 4 is insert-molded in the resin molding portion 1 with the printed circuit board 5 and the temperature protection element 6 being held in place. The holder 4 is
It has a resin intrusion prevention chamber 9 in which the temperature protection element 6 is arranged.
The temperature protection element 6 is an element that cuts off the current when the battery 2 is heated and becomes higher than the set temperature, and is a PTC or a thermal fuse. The resin intrusion prevention chamber 9 is a space for arranging the temperature protection element 6, and is a closed chamber for preventing intrusion of molten synthetic resin when the resin molding portion 1 is molded.
In the holder 4 of FIGS. 4 and 5, the opening of the peripheral wall 4A is closed by the resin injection blocking wall 4B to form the resin intrusion blocking chamber 9. The resin intrusion prevention chamber 9 has an opening on the surface facing the battery 2, and the opening is closed by the battery 2. In order to close the opening with the battery 2, the peripheral wall 4A is formed into a shape that closely adheres to the side surface of the battery 2 without any gap, in other words, a shape that extends along the side surface of the battery 2. The resin intrusion prevention chamber 9 that closes the opening with the battery 2 allows the temperature protection element 6 disposed therein to approach the surface of the battery 2. Further, there is nothing that shuts off the temperature between the temperature protection element 6 and the battery 2. Therefore, the temperature protection element 6 can quickly detect an abnormal temperature rise of the battery 2 and cut off the current.
【００１９】さらに、図のホルダー４は、樹脂注入阻止
壁４Ｂの内面に温度保護素子６を保持する凸部１６を設
けている。温度保護素子６は、この凸部１６に局部的に
接触して、樹脂侵入阻止室９に配設される。この構造で
樹脂侵入阻止室９に配設される温度保護素子６は、電池
温度が上昇したときに極めて速やかに電流を遮断でき
る。温度保護素子６が樹脂注入阻止壁４Ｂに局部的に接
触して、樹脂侵入阻止壁４Ｂへの熱伝導を少なくできる
からである。Further, the holder 4 shown in the figure is provided with a convex portion 16 for holding the temperature protection element 6 on the inner surface of the resin injection blocking wall 4B. The temperature protection element 6 is disposed in the resin invasion prevention chamber 9 by locally contacting the convex portion 16. With this structure, the temperature protection element 6 arranged in the resin intrusion prevention chamber 9 can interrupt the current very quickly when the battery temperature rises. This is because the temperature protection element 6 locally contacts the resin injection blocking wall 4B and heat conduction to the resin intrusion blocking wall 4B can be reduced.
【００２０】さらに、図のホルダー４は、樹脂注入阻止
壁４Ｂの一部に、温度保護素子６のリード６Ａを接続す
るための接続窓１７を開口している。この接続窓１７
は、プリント基板５を密着して閉塞される。接続窓１７
を閉塞するプリント基板５は、樹脂侵入阻止室９の内部
に露出する。このプリント基板５の露出部は、温度保護
素子６の一方のリード６Ａを半田付けして連結する。さ
らに、温度保護素子６の他方のリード６Ｂを電池２に接
続するために、周壁４Ａにも貫通孔１８を開口してい
る。この貫通孔１８は、金属板のリード６Ｂを隙間なく
挿通できるスリット状で、ここにリード６Ｂを挿通して
閉塞される。貫通孔１８を通過して樹脂侵入阻止室９の
外部に引き出されたリード６Ｂは、電極リード７を介し
て電池２の電極２Ｂにスポット溶接して連結される。Further, in the holder 4 shown in the figure, a connection window 17 for connecting the lead 6A of the temperature protection element 6 is opened in a part of the resin injection blocking wall 4B. This connection window 17
Closes the printed circuit board 5 in close contact. Connection window 17
The printed circuit board 5 that closes is exposed inside the resin intrusion prevention chamber 9. The exposed portion of the printed circuit board 5 is connected to one lead 6A of the temperature protection element 6 by soldering. Further, in order to connect the other lead 6B of the temperature protection element 6 to the battery 2, a through hole 18 is also opened in the peripheral wall 4A. The through hole 18 has a slit shape that allows the lead 6B of the metal plate to be inserted without a gap, and the lead 6B is inserted into the through hole 18 to be closed. The lead 6B which has passed through the through hole 18 and is drawn out of the resin intrusion prevention chamber 9 is connected to the electrode 2B of the battery 2 by spot welding via the electrode lead 7.
【００２１】さらに、図のホルダー４は、樹脂侵入阻止
室９を構成する周壁４Ａと同じ高さで、プリント基板５
を支持する支持壁４Ｃを一体的に成形している。支持壁
４Ｃは、プリント基板５の両側を支持する位置に設けら
れる。この支持壁４Ｃは、プリント基板５を樹脂成形部
１に埋設して固定するために、図３に示すように、中間
に樹脂注入口１９を開口している。樹脂注入口１９は、
プリント基板５の両側に開口して、溶融樹脂をプリント
基板５の裏面にも注入させる。さらに、図のホルダー４
は、図４において左端部に、電極リード８を保持するリ
ードガイド２０を設けている。このリードガイド２０
は、プリント基板５と電池２に連結している電極リード
８を保持し、電極リード８を介してプリント基板５をホ
ルダー４の定位置に保持する。図のプリント基板５は、
反対側の端部を、温度保護素子６を介して電池２に連結
している。このプリント基板５は、電極リード８と温度
保護素子６で両端を電池２に連結している。プリント基
板５と電池２の間にホルダー４が配設されるので、ホル
ダー４も電池２の定位置に配設される。ホルダー４は、
プリント基板５と電池２との間に挟着されて、プリント
基板５を電池２の定位置に配設させる。Further, the holder 4 shown in the figure has the same height as the peripheral wall 4A forming the resin intrusion prevention chamber 9, and the printed board 5
The support wall 4C for supporting the is formed integrally. The support wall 4C is provided at a position that supports both sides of the printed circuit board 5. In order to embed and fix the printed circuit board 5 in the resin molding portion 1, the support wall 4C has a resin injection port 19 in the middle as shown in FIG. The resin injection port 19 is
The openings are formed on both sides of the printed circuit board 5 so that the molten resin is also injected into the back surface of the printed circuit board 5. Furthermore, the holder 4 in the figure
4 is provided with a lead guide 20 for holding the electrode lead 8 at the left end in FIG. This lead guide 20
Holds the electrode lead 8 connected to the printed circuit board 5 and the battery 2, and holds the printed circuit board 5 in a fixed position of the holder 4 via the electrode lead 8. The printed circuit board 5 in the figure is
The opposite end is connected to the battery 2 via the temperature protection element 6. Both ends of the printed circuit board 5 are connected to the battery 2 by an electrode lead 8 and a temperature protection element 6. Since the holder 4 is arranged between the printed circuit board 5 and the battery 2, the holder 4 is also arranged at a fixed position of the battery 2. The holder 4 is
It is sandwiched between the printed circuit board 5 and the battery 2, and the printed circuit board 5 is arranged at a fixed position of the battery 2.
【００２２】樹脂成形部１は、合成樹脂を成形する工程
で、ホルダー４と電池２をインサート成形する。ホルダ
ー４には温度保護素子６とプリント基板５を連結してい
るので、樹脂成形部１は、ホルダー４と温度保護素子６
とプリント基板５と電池２を一体的に定位置に連結す
る。図のパック電池は、電池２の全体を樹脂成形部１に
埋設してインサートしない。電池２の３つの辺に樹脂成
形部１を成形している。このパック電池は、外形を小さ
くできる特長がある。ただ、電池は、一部ないしほぼ全
体を樹脂成形部に埋設するようにインサートして、しっ
かりと強靭な構造のパック電池とすることもできる。The resin molding portion 1 insert-molds the holder 4 and the battery 2 in the step of molding a synthetic resin. Since the temperature protection element 6 and the printed circuit board 5 are connected to the holder 4, the resin molding part 1 is provided with the holder 4 and the temperature protection element 6.
And the printed circuit board 5 and the battery 2 are integrally connected in a fixed position. In the illustrated battery pack, the entire battery 2 is embedded in the resin molding portion 1 and is not inserted. The resin molding portion 1 is molded on three sides of the battery 2. This battery pack has a feature that the outer shape can be reduced. However, the battery can also be inserted so that a part or almost the whole is embedded in the resin molding portion to form a battery pack having a solid and strong structure.
【００２３】樹脂成形部１を成形する合成樹脂は、ポリ
アミドあるいはポリウレタンを使用する。これらの合成
樹脂は、軟化温度が低く、しかも溶融時の粘度も低いの
で、一般の合成樹脂に比較して、低温、低圧で成形でき
る。このように、低温、低圧で成形される樹脂成形部１
は、成形に要する時間を短縮できると共に、樹脂成形時
における熱や射出圧による電子部品等への悪影響を低減
できる特長がある。とくに、本発明のパック電池は、樹
脂侵入阻止室９に温度保護素子６を配設するので、溶融
樹脂による温度保護素子６への熱の影響をさらに少なく
できる。Polyamide or polyurethane is used as the synthetic resin for molding the resin molding portion 1. Since these synthetic resins have a low softening temperature and a low viscosity at the time of melting, they can be molded at a lower temperature and a lower pressure than general synthetic resins. Thus, the resin molding part 1 molded at low temperature and low pressure
Has the advantages that the time required for molding can be shortened and that adverse effects on the electronic parts and the like due to heat and injection pressure during resin molding can be reduced. In particular, in the battery pack of the present invention, since the temperature protection element 6 is arranged in the resin intrusion prevention chamber 9, the influence of heat on the temperature protection element 6 due to the molten resin can be further reduced.
【００２４】以上のパック電池は、以下のようにして製
造される。
(1) 温度保護素子６とプリント基板５をホルダー４の
定位置に配設して、温度保護素子６の一方のリード６Ａ
をプリント基板５に接続する。
(2) 温度保護素子６とプリント基板５を装着している
ホルダー４を電池２の定位置に配設して、プリント基板
５を電極リード８で電池２の電極２Ｂにスポット溶接し
て接続し、さらに、温度保護素子６の一方のリード６Ｂ
も、電極リード７を介して電極２Ｂにスポット溶接して
接続する。この状態で、ホルダー４はプリント基板５と
電池２の間にあって、プリント基板５と電池２は正確な
相対位置に連結される。以上の工程で、プリント基板５
とホルダー４と温度保護素子６と電池２とが一体的に連
結されて電池組立１５となる。The above battery pack is manufactured as follows. (1) The temperature protection element 6 and the printed circuit board 5 are arranged at fixed positions of the holder 4, and one lead 6A of the temperature protection element 6 is provided.
To the printed circuit board 5. (2) The holder 4 on which the temperature protection element 6 and the printed circuit board 5 are mounted is arranged at a fixed position of the battery 2, and the printed circuit board 5 is spot-welded and connected to the electrode 2B of the battery 2 by the electrode lead 8. Further, one lead 6B of the temperature protection element 6
Is also spot-welded and connected to the electrode 2B via the electrode lead 7. In this state, the holder 4 is located between the printed circuit board 5 and the battery 2, and the printed circuit board 5 and the battery 2 are connected to each other at an accurate relative position. Through the above steps, the printed circuit board 5
The holder 4, the temperature protection element 6, and the battery 2 are integrally connected to form a battery assembly 15.
【００２５】(3) 電池組立１５を、図６と図７に示す
金型１０の成形室１１にセットした後、金型１０を型締
めする。型締めされた金型１０は、樹脂成形部１を成形
するための成形室１１が形成される。この成形室１１
に、加熱されて溶融された合成樹脂が注入されて樹脂成
形部１を成形する。溶融された合成樹脂は、金型１０に
開口された注液孔１２から注入される。図８は、図２の
パック電池を製造する金型１０の断面図を示す。図８に
示す金型１０は、電池組立１５を定位置に仮り止めする
中央凸部１４と位置決凸部１３を有する。図８は、金型
１０の中央凸部１４と位置決凸部１３が電池２の表面を
押圧して、電池２を定位置に仮り止めする状態を示す。
中央凸部１４は、電池２の表側面と裏側面とに当接し
て、電池２を上下の中央凸部１４で挟着して電池２の上
下方向の位置ずれを阻止する。位置決凸部１３は、電池
２の端面を押圧して電池２の左右方向の位置ずれを阻止
する。このように、電池２の端面を押圧する位置決凸部
１３は、電池２の端面に位置する電極２Ｂを出力端子３
として樹脂成形部１の外部に表出させることができる。(3) After the battery assembly 15 is set in the molding chamber 11 of the mold 10 shown in FIGS. 6 and 7, the mold 10 is clamped. A mold chamber 11 for molding the resin molding part 1 is formed in the mold 10 that has been clamped. This molding chamber 11
Then, the synthetic resin that has been heated and melted is injected to mold the resin molding portion 1. The molten synthetic resin is injected from a liquid injection hole 12 opened in the mold 10. FIG. 8 shows a cross-sectional view of a mold 10 for manufacturing the battery pack of FIG. The mold 10 shown in FIG. 8 has a central convex portion 14 and a positioning convex portion 13 for temporarily fixing the battery assembly 15 in place. FIG. 8 shows a state in which the central convex portion 14 and the positioning convex portion 13 of the mold 10 press the surface of the battery 2 to temporarily fix the battery 2 in place.
The central convex portion 14 contacts the front side surface and the back side surface of the battery 2 to sandwich the battery 2 between the upper and lower central convex portions 14 and prevent the battery 2 from being displaced in the vertical direction. The positioning protrusion 13 presses the end surface of the battery 2 to prevent the battery 2 from being displaced in the left-right direction. In this way, the positioning protrusion 13 that presses the end surface of the battery 2 connects the electrode 2 </ b> B located on the end surface of the battery 2 to the output terminal 3.
Can be exposed to the outside of the resin molding portion 1.
【００２６】さらに、ホルダー４は、４隅の角隅４Ｄを
金型１０の成形室１１のコーナー部の内面に当接させ
て、ホルダー４とプリント基板５の上下左右方向の位置
ずれを阻止する。このように、金型１０は、中央凸部１
４と位置決凸部１３とを電池２に当接させると共に、ホ
ルダー４の角隅４Ｄを金型１０の内面に当接させて、電
池組立１５を定位置に仮り止めする。ただ、位置決凸部
は、ホルダーまたはプリント基板の表面に当接して、電
池組立を正確な位置に仮り止めすることもできる。Further, in the holder 4, the four corners 4D are brought into contact with the inner surfaces of the corners of the molding chamber 11 of the mold 10 to prevent the holder 4 and the printed circuit board 5 from being displaced in the vertical and horizontal directions. . In this way, the mold 10 has the central convex portion 1
4 and the positioning protrusion 13 are brought into contact with the battery 2, and the corners 4D of the holder 4 are brought into contact with the inner surface of the mold 10 to temporarily fix the battery assembly 15 in place. However, the positioning convex portion can also be brought into contact with the surface of the holder or the printed circuit board to temporarily stop the battery assembly at an accurate position.
【００２７】(4) 成形室１１に加熱して溶融された合
成樹脂を圧入する。溶融合成樹脂は、図５に示すよう
に、成形室１１に侵入して樹脂侵入阻止室９には侵入し
ない。成形室１１で成形された樹脂成形部１は、プリン
ト基板５とホルダー４と電池２を一体構造に連結して固
定する。樹脂侵入阻止室９には合成樹脂が注入されず、
ここに配設される温度保護素子６は、電池２の側面に対
向して配設される。(4) The synthetic resin melted by heating is press-fitted into the molding chamber 11. As shown in FIG. 5, the molten synthetic resin enters the molding chamber 11 and does not enter the resin intrusion prevention chamber 9. The resin molding part 1 molded in the molding chamber 11 connects and fixes the printed circuit board 5, the holder 4, and the battery 2 in an integrated structure. No synthetic resin is injected into the resin intrusion prevention chamber 9,
The temperature protection element 6 provided here is provided so as to face the side surface of the battery 2.
【００２８】(5) 以上の工程で、電池組立１５は、プ
リント基板５とホルダー４と電池２を樹脂成形部１にイ
ンサートして定位置に固定される。その後、樹脂成形部
１が成形された電池組立１５の表面をチューブで被覆し
て完成されたパック電池となる。チューブには熱収縮チ
ューブを使用する。熱収縮チューブは、樹脂成形部１が
成形された電池組立１５を入れた後、加熱、収縮して表
面に密着させる。(5) Through the above steps, the battery assembly 15 is fixed in place by inserting the printed circuit board 5, the holder 4 and the battery 2 into the resin molding portion 1. Then, the surface of the battery assembly 15 in which the resin molding portion 1 is molded is covered with a tube to complete the battery pack. Use heat-shrink tubing. After the battery assembly 15 in which the resin molding portion 1 is molded is put in the heat shrinkable tube, the heat shrinkable tube is heated and shrunk to be brought into close contact with the surface.
【００２９】[0029]
【発明の効果】本発明のパック電池とその製造方法は、
温度保護素子の正常な動作を保証しながら、樹脂成形部
にインサート成形して固定できる特長がある。それは、
本発明のパック電池とその製造方法が、ホルダーを樹脂
成形部にインサート成形して電池に連結しており、この
ホルダーには溶融した合成樹脂の侵入を阻止する樹脂侵
入阻止室を設け、この樹脂侵入阻止室に温度保護素子を
配設して樹脂成形部を成形しているからである。このよ
うに、ホルダーに樹脂侵入阻止室を設けて温度保護素子
を配設するパック電池とその製造方法は、樹脂成形部を
成形する溶融状態の合成樹脂が温度保護素子を過熱し
て、温度保護素子の電気特性に悪い影響を与えるのを有
効に防止できる。したがって、温度保護素子を理想的に
配設して、温度保護素子の正常な動作を保証できる。さ
らに、本発明は、樹脂侵入阻止室に配設される温度保護
素子と電池との間に熱伝導の悪い合成樹脂が介在するの
を阻止できるので、温度保護素子で電池温度を速やかに
検出して、電池を保護しながら充放電できる特長もあ
る。The battery pack of the present invention and the manufacturing method thereof are as follows.
It has the feature that it can be insert-molded and fixed to the resin molding part while guaranteeing the normal operation of the temperature protection element. that is,
The battery pack and the manufacturing method thereof according to the present invention insert-mold a holder into a resin molding portion and connect the battery to the battery. This holder is provided with a resin intrusion prevention chamber for preventing intrusion of the molten synthetic resin. This is because the temperature protection element is arranged in the intrusion prevention chamber and the resin molding portion is molded. In this way, the battery pack in which the resin intrusion prevention chamber is provided in the holder and the temperature protection element is arranged and the manufacturing method thereof are such that the synthetic resin in a molten state for molding the resin molding portion overheats the temperature protection element to protect the temperature protection element. It is possible to effectively prevent the electric characteristics of the device from being adversely affected. Therefore, it is possible to ideally dispose the temperature protection element and ensure normal operation of the temperature protection element. Further, according to the present invention, since the synthetic resin having poor heat conduction can be prevented from intervening between the temperature protection element arranged in the resin intrusion prevention chamber and the battery, the temperature protection element can quickly detect the battery temperature. It also has the feature of charging and discharging while protecting the battery.
【図１】従来のパック電池の製造工程を示す斜視図FIG. 1 is a perspective view showing a manufacturing process of a conventional battery pack.
【図２】本発明の一実施例にかかるパック電池の斜視図FIG. 2 is a perspective view of a battery pack according to an embodiment of the present invention.
【図３】図２に示すパック電池の樹脂成形部を成形して
いない電池組立を示す斜視図FIG. 3 is a perspective view showing a battery assembly in which a resin molding portion of the battery pack shown in FIG. 2 is not molded.
【図４】図３に示す電池組立の分解斜視図FIG. 4 is an exploded perspective view of the battery assembly shown in FIG.
【図５】図２に示すパック電池の樹脂成形部を金型で成
形する状態を示す断面図5 is a cross-sectional view showing a state where a resin molding portion of the battery pack shown in FIG. 2 is molded with a mold.
【図６】図３に示す電池組立を金型に仮止めする状態を
示す分解斜視図6 is an exploded perspective view showing a state where the battery assembly shown in FIG. 3 is temporarily fixed to a mold.
【図７】図３に示す電池組立を金型に仮止めする状態を
示す分解斜視図7 is an exploded perspective view showing a state where the battery assembly shown in FIG. 3 is temporarily fixed to a mold.
【図８】図５に示す金型のＡ−Ａ線断面図8 is a cross-sectional view taken along the line AA of the mold shown in FIG.
１…樹脂成形部
２…電池 ２Ａ…外装缶 ２
Ｂ…電極
３…出力端子
４…ホルダー ４Ａ…周壁 ４
Ｂ…樹脂注入阻止壁
４Ｃ…支持壁 ４Ｄ…角隅
５…プリント基板
６…温度保護素子 ６Ａ…リード ６
Ｂ…リード
７…電極リード
８…電極リード
９…樹脂侵入阻止室
１０…金型
１１…成形室
１２…注液孔
１３…位置決凸部
１４…中央凸部
１５…電池組立
１６…凸部
１７…接続窓
１８…貫通孔
１９…樹脂注入口
２０…リードガイド1 ... Resin molding part 2 ... Battery 2A ... Exterior can 2
B ... Electrode 3 ... Output terminal 4 ... Holder 4A ... Peripheral wall 4
B ... Resin injection blocking wall 4C ... Supporting wall 4D ... Corner 5 ... Printed circuit board 6 ... Temperature protection element 6A ... Lead 6
B ... Lead 7 ... Electrode lead 8 ... Electrode lead 9 ... Resin invasion prevention chamber 10 ... Mold 11 ... Molding chamber 12 ... Liquid injection hole 13 ... Positioning convex portion 14 ... Central convex portion 15 ... Battery assembly 16 ... Convex portion 17 ... Connection window 18 ... Through hole 19 ... Resin injection port 20 ... Lead guide
Claims (11)
温度保護素子(6)と、この温度保護素子(6)を定位置に配
設しているホルダー(4)と、このホルダー(4)を電池(2)
に連結してなる樹脂成形部(1)とを備え、 樹脂成形部(1)がホルダー(4)をインサート成形して電池
(2)の定位置に配設して、電池(2)とホルダー(4)と温度
保護素子(6)と樹脂成形部(1)を一体的に連結してなるパ
ック電池であって、 ホルダー(4)が、温度保護素子(6)を配設できるスペース
であって、樹脂成形部(1)を成形する合成樹脂の侵入を
阻止する樹脂侵入阻止室(9)を有し、この樹脂侵入阻止
室(9)に温度保護素子(6)を配設してなることを特徴とす
るパック電池。1. A battery (2), a temperature protection element (6) connected to the battery (2), and a holder (4) having the temperature protection element (6) arranged in a fixed position. , Replace this holder (4) with batteries (2)
And a resin molding part (1) that is connected to the battery, and the resin molding part (1) insert-molds the holder (4)
A battery pack which is arranged at a fixed position of (2) and integrally connects the battery (2), the holder (4), the temperature protection element (6), and the resin molding portion (1), (4) is a space where the temperature protection element (6) can be arranged, and has a resin intrusion prevention chamber (9) for preventing the intrusion of the synthetic resin molding the resin molding portion (1). A battery pack comprising a temperature protection element (6) in a blocking chamber (9).
ヒューズである請求項１に記載されるパック電池。2. The battery pack according to claim 1, wherein the temperature protection device (6) is a PTC or a thermal fuse.
を保持する凸部(16)を有し、この凸部(16)を温度保護素
子(6)に局部的に接触させて保持している請求項１に記
載されるパック電池。3. The resin intrusion prevention chamber (9) has a temperature protection element (6).
2. The battery pack according to claim 1, further comprising a convex portion (16) for holding the convex portion (16), the convex portion (16) being locally brought into contact with the temperature protection element (6) and being retained.
出すると共に、樹脂侵入阻止室(9)に配設される温度保
護素子(6)が電池(2)に接近している請求項１に記載され
るパック電池。4. The surface of the battery (2) is exposed to the resin intrusion prevention chamber (9), and the temperature protection element (6) arranged in the resin intrusion prevention chamber (9) approaches the battery (2). The battery pack according to claim 1, wherein the battery pack is a battery pack.
位置に連結しているホルダー(4)をインサート成形して
固定している請求項１に記載されるパック電池。5. The battery pack according to claim 1, wherein the resin molding portion (1) insert-molds and fixes a holder (4) connecting the printed circuit board (5) in a fixed position.
力端子を樹脂成形部に設けた電極窓から外部に露出させ
ている請求項１に記載されるパック電池。6. The battery pack according to claim 1, wherein the printed circuit board has an output terminal, and the output terminal is exposed to the outside through an electrode window provided in the resin molding portion.
るときに、ホルダー(4)を樹脂成形部(1)にインサート成
形して電池(2)に連結するパック電池の製造方法であっ
て、 ホルダー(4)に、樹脂成形部(1)を成形する溶融した合成
樹脂の侵入を阻止する樹脂侵入阻止室(9)を設け、この
樹脂侵入阻止室(9)に温度保護素子(6)を配設して、樹脂
成形部(1)を成形することを特徴とするパック電池の製
造方法。7. A battery pack for connecting a battery (2) by insert-molding a holder (4) into the resin molding part (1) when molding the resin molding part (1) in contact with the battery (2). A manufacturing method, in which a holder (4) is provided with a resin intrusion prevention chamber (9) for preventing invasion of molten synthetic resin for molding the resin molding portion (1), and the resin intrusion prevention chamber (9) is provided with a temperature A method of manufacturing a battery pack, comprising arranging a protective element (6) and molding a resin molding part (1).
護素子(6)を配設しているホルダー(4)を金型(10)の成形
室(11)に仮り止めし、金型(10)の成形室(11)に溶融状態
の合成樹脂を注入して、樹脂成形部(1)を成形する請求
項７に記載されるパック電池の製造方法。8. A battery (2) and a holder (4) provided with a temperature protection element (6) in a resin intrusion prevention chamber (9) are temporarily fixed to a molding chamber (11) of a mold (10). The method for manufacturing a battery pack according to claim 7, wherein the resin molding part (1) is molded by injecting a synthetic resin in a molten state into the molding chamber (11) of the mold (10).
状態の合成樹脂で、ホルダー(4)を電池(2)に押し付けて
樹脂成形部(1)を成形する請求項７に記載されるパック
電池の製造方法。9. The resin molding part (1) is molded by pressing the holder (4) against the battery (2) with a molten synthetic resin injected into the molding chamber (11) of the mold (10). 7. The method for manufacturing the battery pack described in 7.
を電池(2)の電極(2B)とプリント基板(5)に接続し、温度
保護素子(6)でプリント基板(5)を電池(2)に連結する状
態で、電池(2)とホルダー(4)とプリント基板(5)を金型
(10)の成形室(11)に仮止めして樹脂成形部(1)を成形す
る請求項７に記載されるパック電池の製造方法。10. The leads (6B), (6A) of the temperature protection device (6)
Is connected to the electrode (2B) of the battery (2) and the printed circuit board (5), and the printed circuit board (5) is connected to the battery (2) with the temperature protection element (6). Mold 4) and printed circuit board (5)
The method for producing a battery pack according to claim 7, wherein the resin molding part (1) is molded by temporarily fixing it in the molding chamber (11) of (10).
リード(6A)、(6B)と電極リード(7)、(8)の両方で電池(2)
に接続して、金型(10)の成形室(11)に仮止めする請求項
１０に記載されるパック電池の製造方法。11. A printed circuit board (5) is provided with a battery (2) with both leads (6A) and (6B) of the temperature protection device (6) and electrode leads (7) and (8).
11. The method of manufacturing a battery pack according to claim 10, wherein the battery pack is connected to the mold and is temporarily fixed to the molding chamber (11) of the mold (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001263706A JP3877555B2 (en) | 2001-08-31 | 2001-08-31 | Pack battery and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001263706A JP3877555B2 (en) | 2001-08-31 | 2001-08-31 | Pack battery and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003077436A true JP2003077436A (en) | 2003-03-14 |
| JP3877555B2 JP3877555B2 (en) | 2007-02-07 |
Family
ID=19090419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001263706A Expired - Fee Related JP3877555B2 (en) | 2001-08-31 | 2001-08-31 | Pack battery and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3877555B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006164558A (en) * | 2004-12-02 | 2006-06-22 | Sanyo Electric Co Ltd | Battery pack |
| JP2006313741A (en) * | 2005-05-04 | 2006-11-16 | Samsung Sdi Co Ltd | Secondary battery |
| JP2008021507A (en) * | 2006-07-12 | 2008-01-31 | Nec Tokin Corp | Battery pack |
| US7514176B2 (en) | 2003-03-28 | 2009-04-07 | Kyocera Corporation | Battery having a molded resin portion |
| JP2009241317A (en) * | 2008-03-29 | 2009-10-22 | Sanyo Electric Co Ltd | Mold for insert molding and method for manufacturing resin molded body using this mold |
| US7682734B2 (en) | 2004-02-28 | 2010-03-23 | Lg Electronics, Inc. | Rechargeable battery having pliable cell and manufacturing method thereof |
| US8895089B2 (en) | 2010-12-22 | 2014-11-25 | Hitachi Maxell, Ltd. | Sealed battery |
| WO2016051616A1 (en) * | 2014-09-30 | 2016-04-07 | 三洋電機株式会社 | Battery pack |
-
2001
- 2001-08-31 JP JP2001263706A patent/JP3877555B2/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7514176B2 (en) | 2003-03-28 | 2009-04-07 | Kyocera Corporation | Battery having a molded resin portion |
| US7682734B2 (en) | 2004-02-28 | 2010-03-23 | Lg Electronics, Inc. | Rechargeable battery having pliable cell and manufacturing method thereof |
| JP2006164558A (en) * | 2004-12-02 | 2006-06-22 | Sanyo Electric Co Ltd | Battery pack |
| JP2006313741A (en) * | 2005-05-04 | 2006-11-16 | Samsung Sdi Co Ltd | Secondary battery |
| JP4558671B2 (en) * | 2005-05-04 | 2010-10-06 | 三星エスディアイ株式会社 | Secondary battery |
| US7939191B2 (en) | 2005-05-04 | 2011-05-10 | Samsung Sdi Co., Ltd. | Rechargeable battery and coupling structure thereof |
| JP2008021507A (en) * | 2006-07-12 | 2008-01-31 | Nec Tokin Corp | Battery pack |
| JP2009241317A (en) * | 2008-03-29 | 2009-10-22 | Sanyo Electric Co Ltd | Mold for insert molding and method for manufacturing resin molded body using this mold |
| US8895089B2 (en) | 2010-12-22 | 2014-11-25 | Hitachi Maxell, Ltd. | Sealed battery |
| WO2016051616A1 (en) * | 2014-09-30 | 2016-04-07 | 三洋電機株式会社 | Battery pack |
| JPWO2016051616A1 (en) * | 2014-09-30 | 2017-07-13 | 三洋電機株式会社 | Battery pack |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3877555B2 (en) | 2007-02-07 |
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