JPH117926A - Battery pack - Google Patents
Battery packInfo
- Publication number
- JPH117926A JPH117926A JP9160062A JP16006297A JPH117926A JP H117926 A JPH117926 A JP H117926A JP 9160062 A JP9160062 A JP 9160062A JP 16006297 A JP16006297 A JP 16006297A JP H117926 A JPH117926 A JP H117926A
- Authority
- JP
- Japan
- Prior art keywords
- battery pack
- pack container
- joined
- welding
- rib
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
- B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
- B29C66/30223—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7394—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset
- B29C66/73941—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset characterised by the materials of both parts being thermosets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、落下時などにおけ
る耐破損性がすぐれた電池パックに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery pack having excellent breakage resistance when dropped.
【０００２】[0002]
【従来の技術】複数個の電池（素電池）で構成した電源
部品は、電池パック（パック電池）と称されて広く実用
に供されている。ここで、電池パックは、一般的に、電
気絶縁性を有する容器の中に、複数個の素電池、これら
の素電池を電気的に接続する配線回路、安全素子、接触
端子などを内蔵した構造に成っている。このような電源
部品は、従来、一次電池が主体であったが、最近は、充
放電可能な二次電池にその地位が移行し、年々その用途
が拡大化するとともに需要も増大化している。2. Description of the Related Art A power supply component composed of a plurality of batteries (unit cells) is called a battery pack (pack battery) and is widely used in practice. Here, a battery pack generally has a structure in which a plurality of unit cells, a wiring circuit for electrically connecting these unit cells, a safety element, a contact terminal, and the like are built in a container having electrical insulation. It consists of Conventionally, such power supply components have been mainly composed of primary batteries, but recently, their position has shifted to rechargeable and rechargeable secondary batteries, and their use is expanding year by year and demand is increasing.
【０００３】そして、この種の電池パックは、一般的
に、次のような構造を採っている。すなわち、分割型の
樹脂もしくはゴム製の電池パック容器片と、一方の電池
パック容器片内に装着・配置された複数個の素電池およ
び前記素電池を電気的に接続する配線回路と、配線回路
に接続し電池パック容器片の壁部に導出・配置された外
部接続用端子部と、前記一電池パック容器片の被接合面
（通常は平面）に、対応する被接続面（通常は平面）を
一体化して素電池および配線回路を封装する他の電池パ
ック容器片とを有する構成である。[0003] This type of battery pack generally has the following structure. That is, a divided resin or rubber battery pack container piece, a plurality of unit cells mounted and arranged in one of the battery pack container pieces, a wiring circuit for electrically connecting the unit cells, and a wiring circuit. And an external connection terminal portion led out and arranged on the wall of the battery pack container piece, and a connected surface (usually flat) corresponding to the joined surface (usually flat) of the one battery pack container piece. And another battery pack container piece for sealing the unit cell and the wiring circuit.
【０００４】なお、上記樹脂製の電池パック容器片相互
の接合・一体化は、図４に模式的に断面構造を示すごと
く、電池パック容器片１，２のうち、一方の電池パック
容器片１の被接続面1aに形設された溶着リブ1bを対向す
る他方の電池パック容器片２の被接続面2aに超音波溶接
することによって行われている。[0004] Incidentally, the joining and integration of the above-mentioned resin-made battery pack container pieces are performed as shown in FIG. 4 schematically showing a sectional structure of one of the battery pack container pieces 1 and 2. The welding is performed by ultrasonic welding a welding rib 1b formed on the connected surface 1a of the other battery pack container piece 2 to the connected surface 2a.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、前記構
成の電池パックの場合には、次のような不都合が認めら
れる。すなわち、一方の被接合面1aに溶着リブ1bを配置
（形設）しておき、互いに接合一体化する電池パック容
器片１，２の被接合面1a，2aを位置合わせした後、所要
の超音波処理を施して、前記被接合面1a，2a間の溶着リ
ブ1bの溶融によって、電池パック容器片１，２同士を接
合・一体化している。However, in the case of the battery pack having the above-described structure, the following disadvantages are recognized. That is, the welding rib 1b is arranged (formed) on one of the surfaces to be joined 1a, and the surfaces to be joined 1a and 2a of the battery pack container pieces 1 and 2 to be joined and integrated with each other are aligned. By sonication, the battery pack container pieces 1 and 2 are joined and integrated by melting the welding rib 1b between the joined surfaces 1a and 2a.
【０００６】このように、電池パック容器片１，２同士
の接合・一体化は、電池パック容器片１，２の平面的な
被接合面1a，2a間の超音波接合であるため、接合強度な
どの点が懸念される。つまり、各種電子機器類の携帯型
化などに伴って、電源部品としての電池パックは、大型
化ないし大容量化の傾向にあり、必然的に、重量なども
増大する。また、前記電池パックの大型化ないし大容量
化は、外装・保護の機能をなす電池パック容器自体につ
いて、機械的な強度も要求される。[0006] As described above, the joining and integration of the battery pack container pieces 1 and 2 are ultrasonic joining between the planar joining surfaces 1a and 2a of the battery pack container pieces 1 and 2, so that the joining strength is increased. And so on. That is, as various electronic devices become portable, a battery pack as a power supply component tends to be large-sized or large-capacity, and inevitably increases in weight and the like. In addition, in order to increase the size or the capacity of the battery pack, mechanical strength is required for the battery pack container itself which functions as an exterior and a protection.
【０００７】すなわち、電池パックの搬送や取扱操作中
に、電池パックを落下することもあり、このような時
に、電池パックが機械的に破損など起こしてはならな
い。しかし、前記電池パック容器片１，２の接合・一体
化を超音波溶接で行った構成の場合、落下試験などに耐
えないこともある。[0007] That is, the battery pack may fall during the transportation or handling operation of the battery pack. In such a case, the battery pack must not be mechanically damaged. However, when the battery pack container pieces 1 and 2 are joined and integrated by ultrasonic welding, they may not withstand a drop test or the like.
【０００８】特に、電池パックの落下試験において、電
池パック容器片１，２が相互の接合面1a，2aで剥離・離
脱がしばしば発生し、製造歩留まりや製品の信頼性が損
なわれる恐れがある。換言すると、電池パック容器片
１，２同士の接合強度が、落下試験に耐えない程度に不
十分な場合があって、上記、従来の超音波溶接手段を採
った電池パックの構成は、実用上、改善・改良が期待さ
れている。In particular, in the drop test of the battery pack, the battery pack container pieces 1 and 2 are often peeled off or separated from each other at the joint surfaces 1a and 2a, and the production yield and the reliability of the product may be impaired. In other words, the joining strength between the battery pack container pieces 1 and 2 may be insufficient to withstand the drop test, and the above-described configuration of the battery pack employing the conventional ultrasonic welding means is not practical. Improvements and improvements are expected.
【０００９】本発明は、上記事情に対応してなされたも
ので、耐衝撃性などが良好で、量産的にも容易に実現で
きる高信頼性の電池パックの提供を目的とする。The present invention has been made in view of the above circumstances, and has as its object to provide a highly reliable battery pack which has good impact resistance and the like and can be easily realized in mass production.
【００１０】[0010]
【課題を解決するための手段】請求項１の発明は、電池
パック容器片の対向する被接合面が溶着リブの超音波溶
接で接合・一体化して成る樹脂製の電池パック容器と、
前記電池パック容器内に装着された複数個の素電池およ
び前記素電池を電気的に接続する配線回路と、前記配線
回路に接続し電池パック容器壁部に導出・配置された外
部接続用端子部とを有する電池パックにおいて、前記電
池パック容器は、溶着リブの配置面と対向する被接合面
に離隔して設けられた凹部を有し、互いに平面的に対接
する領域が超音波溶接され、凹部領域には対向する溶接
用リブが嵌合していることを特徴とする電池パックであ
る。According to the first aspect of the present invention, there is provided a battery pack container made of resin, in which opposed surfaces of battery pack container pieces are joined and integrated by ultrasonic welding of welding ribs.
A plurality of unit cells mounted in the battery pack container and a wiring circuit for electrically connecting the unit cells; and an external connection terminal unit connected to the wiring circuit and led out and arranged on a wall portion of the battery pack container. In the battery pack having the above, the battery pack container has a recess provided on the surface to be joined opposed to the surface on which the welding rib is arranged, and the regions which are in planar contact with each other are ultrasonically welded, The battery pack is characterized in that opposing welding ribs are fitted in the region.
【００１１】なお、前記電池パック容器においては、凹
部領域に嵌合した対向する溶接用リブの先端部を超音波
溶接した構成としてもよい。The battery pack container may have a configuration in which the distal ends of the opposed welding ribs fitted into the recessed regions are ultrasonically welded.
【００１２】本発明に係る電池パック容器は、たとえば
ポリテトラフルオロエチレン樹脂、ポリテトラフルオロ
エチレン樹脂、ポリフッ化ビニル樹脂、ポリフッ化ビニ
リデン樹脂、ポリエチレン樹脂、ポリプロピレン樹脂、
ポリ塩化ビニリデン樹脂およびポリ塩化ビニル樹脂、あ
るいは塩化ゴム、メチルゴム、ポリイソプレン系ゴム、
ポリブタジェン系ゴム、ブチルゴム、 SBRゴム、 NBRゴ
ム、ポリイソブチレン系ゴム、クロロプレン系ゴム、ネ
オプレン系ゴムなどを素材としたものが挙げられる。つ
まり、加工性、量産性、コストなどから合成樹脂を素材
とした箱型などであり、また、超音波溶接で、電池パッ
ク容器に一体化する操作を考慮するとたとえば２分割片
など、分割片数をなるべく小さく設定するのが望まし
い。なお、ここでは、これら樹脂およびゴム類を併せて
樹脂とする。The battery pack container according to the present invention includes, for example, polytetrafluoroethylene resin, polytetrafluoroethylene resin, polyvinyl fluoride resin, polyvinylidene fluoride resin, polyethylene resin, polypropylene resin,
Polyvinylidene chloride resin and polyvinyl chloride resin, or chloride rubber, methyl rubber, polyisoprene rubber,
Examples include those made of polybutadiene rubber, butyl rubber, SBR rubber, NBR rubber, polyisobutylene rubber, chloroprene rubber, neoprene rubber, and the like. In other words, it is a box type made of a synthetic resin in view of workability, mass productivity, cost, and the like. In view of the operation of being integrated into the battery pack container by ultrasonic welding, the number of divided pieces Is desirably set as small as possible. Here, these resins and rubbers are collectively referred to as a resin.
【００１３】本発明においては、前記樹脂類から成り、
かつ対向する被接合面が接合される電池パック容器片の
うち、一方の電池パック容器片の被接合面に、溶着リブ
が配置されている。ここで、溶着リブは、一般的に、一
方の電池パック容器片の被接合面を、その被接合面幅の
1/2〜 1/1の帯状に、高さ 0.3〜 1mm程度突設させた構
造である。また、溶着リブを被接合面に配置した電池パ
ック容器片に対して、他方の電池パック容器片の被接合
面に形設される凹部の幅は、前記溶着リブの幅と同程
度、深さは前記溶着リブの高さと同等もしくはやや浅め
である。In the present invention, the resin comprises the above resins,
Further, among the battery pack container pieces to which the opposing joined surfaces are joined, welding ribs are arranged on the joined surface of one of the battery pack container pieces. Here, in general, the welding rib is used to connect the surface to be bonded of one battery pack container piece to the width of the surface to be bonded.
It is a structure that protrudes about 0.3 to 1 mm in height from a 1/2 to 1/1 band. In addition, the width of the concave portion formed on the surface to be joined of the other battery pack container piece with respect to the battery pack container piece with the welding rib arranged on the surface to be joined is approximately the same as the width of the welding rib, and the depth thereof. Is equal to or slightly shallower than the height of the welding rib.
【００１４】本発明では、電池パック容器片同士の接合
が、平面的な被接合面同士の超音波溶着と、被接合面の
凹部に対する溶着リブの部分的な嵌合（係合）および一
部の超音波溶着とで成された状態を採っている。つま
り、電池パック容器片は、溶着リブの溶着作用による被
接合面同士の接合領域と、被接合面の凹部に対する溶着
リブの係合とで機械的に接合一体化した構成と成ってい
る。According to the present invention, the battery pack container pieces are joined by ultrasonic welding of planar joining surfaces, partial fitting (engagement) of welding ribs with concave portions of the joining surfaces, and partial joining. Ultrasonic welding. That is, the battery pack container piece is configured to be mechanically joined and integrated by the joining region between the joined surfaces by the welding action of the welding ribs and the engagement of the welding ribs with the concave portions of the joined surfaces.
【００１５】したがって、被接合面同士の超音波接合の
強度が若干不十分な場合でも、凹部に対する溶着リブの
係合により十分補充されることになり、落下などによる
衝撃に遭っても、接合部の剥離・離脱なども回避され、
信頼性の高い電池パックとして機能する。Therefore, even if the strength of the ultrasonic bonding between the surfaces to be bonded is slightly insufficient, the welding ribs are sufficiently replenished by the engagement of the welding ribs with the concave portions. Peeling and detachment are also avoided,
Functions as a highly reliable battery pack.
【００１６】[0016]
【発明の実施の形態】以下図１，図２および図３を参照
して実施例を説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described below with reference to FIGS. 1, 2 and 3. FIG.
【００１７】図１は、電池パック容器の概略構成を展開
して示す斜視図である。図１において、３，４は被接合
面3a，4a同士を接合することにより電池パック容器５を
形成する電池パック容器片（分割片）で、それぞれ箱型
の構成となっている。FIG. 1 is an exploded perspective view showing a schematic configuration of the battery pack container. In FIG. 1, reference numerals 3 and 4 denote battery pack container pieces (split pieces) that form the battery pack container 5 by joining the surfaces 3a and 4a to be joined, each having a box-shaped configuration.
【００１８】ここで、電池パック容器片３は、複数個の
素電池（たとえばニッケル水素電池）および前記素電池
を電気的に接続する配線回路などを内蔵（内装）ととも
に、入出力端子導出部3bなどを有する。また、電池パッ
ク容器片３の開口端は、段付き形に形成されており、内
側の段付き端面3aが被接合面を成し、その外側壁部3cが
他の電池パック容器片（蓋体）４を挿着する構成と成っ
ている。さらに、前記被接合面3aには全域に亘って、ほ
ぼ一定の間隔をおいて、凹部3dが形設・配置されてい
る。The battery pack container piece 3 includes a plurality of unit cells (for example, nickel-metal hydride batteries) and a wiring circuit for electrically connecting the unit cells (built-in) and an input / output terminal lead-out portion 3b. Etc. The open end of the battery pack container piece 3 is formed in a stepped shape, the inner stepped end surface 3a forms a surface to be joined, and the outer wall portion 3c has another battery pack container piece (lid). 4) is inserted. Further, recesses 3d are formed and arranged at substantially constant intervals over the entire area of the surface 3a to be joined.
【００１９】一方、他の電池パック容器片４は、操作ス
イッチなどの導出部4bを有するとともに、被接合面2aに
帯状の溶着リブ4cがほぼ全域に亘って形設・配置されて
いる。ここで、溶着リブ4cは、たとえば電池パック容器
片４の成型時に、その電池パック容器片４の被接合面4a
に一体的に突設させたものである。On the other hand, the other battery pack container piece 4 has a lead-out portion 4b such as an operation switch, and a band-shaped welding rib 4c is formed and arranged over almost the entire area on the surface 2a to be joined. Here, for example, when the battery pack container piece 4 is molded, the welding rib 4c is connected to the joining surface 4a of the battery pack container piece 4.
It is made to protrude integrally.
【００２０】そして、前記素電池群、配線回路、その他
の回路素子などを内蔵して、電池パック容器片３，４同
士を、相互の被接合面3a，4aを位置合わせし、超音波溶
接で電池パック容器５の形成および電池パック化したと
き、図２に要部を拡大して断面的に示すような接合状態
を成している。すなわち、前記電池パック容器５は、溶
着リブ4cの配置面と対向する被接合面3aに離隔して設け
られた凹部3dを有するため、互いに平面的に対接する領
域では、被接合面3a，4a同士が溶着リブ4cの溶融・接合
作用で超音波溶接される。Then, the battery pack container pieces 3 and 4 are aligned with the surfaces 3a and 4a to be joined together by incorporating the unit cell group, the wiring circuit, and other circuit elements, and are ultrasonically welded. When the battery pack container 5 is formed and a battery pack is formed, the main part is enlarged in FIG. That is, since the battery pack container 5 has the concave portion 3d provided separately from the surface to be joined 3a facing the surface on which the welding rib 4c is disposed, the surfaces to be joined 3a, 4a The two members are ultrasonically welded by the fusion / joining action of the welding ribs 4c.
【００２１】一方、凹部3d領域では、対向する被接合面
3aが欠けた状態にあるため、溶着リブ4cの溶融・接合作
用による被接合面3a，4a同士の超音波溶接が進行せず、
結果的に、溶着リブ4c自体が被接合面3aの凹部3dに嵌合
（楔の打ち込み状態化）する。そして、被接合面3aの凹
部3dの底面部と、溶着リブ4cの先端部との対接領域で超
音波溶接がされた形態を採っている。On the other hand, in the recess 3d region, the opposed surfaces to be joined are
Since 3a is in a chipped state, ultrasonic welding of the surfaces 3a and 4a to be joined does not progress due to the melting and joining actions of the welding ribs 4c.
As a result, the welding rib 4c itself fits into the concave portion 3d of the surface 3a to be joined (the wedge is driven). Then, a form in which ultrasonic welding is performed in a contact area between the bottom surface of the concave portion 3d of the joined surface 3a and the tip of the welding rib 4c is adopted.
【００２２】なお、図３は、前記電池パック容器片３の
被接合面3aと、電池パック容器片４の被接合面4aとを超
音波接合したとき、被接合面3aの凹部3dにおける溶着リ
ブ4cの係合状態を模式的に示す拡大断面図である。つま
り、前記被接合面3aの凹部3d領域では、少なくとも被接
合面3a，4aの長さ方向に対して、固定・係止する機能を
補強する形の作用効果が実現されている。FIG. 3 shows the welding ribs in the recess 3d of the surface 3a when the surface 3a of the battery pack container 3 and the surface 4a of the battery pack container 4 are ultrasonically bonded. It is an expanded sectional view which shows the engagement state of 4c typically. That is, in the region of the concave portion 3d of the surface to be joined 3a, a function and effect of reinforcing the function of fixing and locking at least in the longitudinal direction of the surfaces to be joined 3a and 4a is realized.
【００２３】上記のごとく、電池パック容器片３の被接
合面3aと、電池パック容器片４の被接合面4aとの構成を
設定し、これら被接合面3a，4a同士の超音波接合によっ
て、電池パック容器５化した電池パックは、一般的な電
池パックの落下試験において、すぐれた耐衝撃性ないし
耐損傷性を呈する。すなわち、電池パック容器片３の被
接合面3aの構成以外は、同じ仕様として構成した電池パ
ックの場合、落下試験でほとんどが、電池パック容器片
同士の剥離・離脱が発生したのに対して、本発明に係る
電池パックの場合は、電池パック容器片同士の剥離・離
脱発生が 0／100 であった。As described above, the configuration of the joining surface 3a of the battery pack container piece 3 and the joining surface 4a of the battery pack container piece 4 is set, and the joined surfaces 3a, 4a are ultrasonically joined to each other. The battery pack made into the battery pack container 5 exhibits excellent impact resistance or damage resistance in a general battery pack drop test. That is, except for the configuration of the joined surface 3a of the battery pack container piece 3, in the case of the battery packs configured to have the same specifications, almost all of the battery pack container pieces peeled and separated in the drop test, In the case of the battery pack according to the present invention, the occurrence of separation / separation between the battery pack container pieces was 0/100.
【００２４】なお、本発明は上記実施例に限定されるも
のでなく、発明の趣旨を逸脱しない範囲でいろいろの変
形を採ることができる。すなわち、上記では電池パック
容器５の構成において、凹部領域に対向する溶接用リブ
を嵌合し、かつその先端部が超音波溶接させたが、凹部
領域に対向する溶接用リブを嵌合しただけで、超音波溶
接を省略してもよい。また、内装（内蔵）する素電池
は、ニッケル水素電池の代りにニッケルカドミウム電池
でもよいし、また、その数も適宜選択してもよい。The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the invention. That is, in the above description, in the configuration of the battery pack container 5, the welding rib facing the recessed region was fitted and the tip was ultrasonically welded, but only the welding rib facing the recessed region was fitted. Thus, the ultrasonic welding may be omitted. Further, the unit cells to be built (built in) may be nickel cadmium batteries instead of nickel hydride batteries, and the number thereof may be appropriately selected.
【００２５】[0025]
【発明の効果】以上説明したように、本発明によれば、
電池パック容器片同士は、溶着リブの溶着作用だけでな
く、接被接合面における係合的（楔の打ち込み態様）な
構成とで機械的に接合一体化している。したがって、被
接合面の超音波溶接による接合強度が若干不十分な場合
でも、楔の打ち込みによる固定化的な作用によって、十
分、接合一体化が補強されることになり、落下などで破
損を起こす恐れも解消されて、取扱易く、かつ信頼性の
高い電池パックが提供される。As described above, according to the present invention,
The battery pack container pieces are mechanically joined and integrated not only by the welding action of the welding ribs but also by an engaging (wedge driving mode) configuration on the joined surface. Therefore, even when the joining strength by ultrasonic welding of the joining surfaces is slightly insufficient, the fixing integration by the wedge driving can sufficiently reinforce the joining integration and cause breakage due to dropping or the like. The fear is eliminated, and a battery pack that is easy to handle and has high reliability is provided.
【図１】本発明に係る電池パック容器の要部構成例を展
開して示す斜視図。FIG. 1 is an exploded perspective view showing a configuration example of a main part of a battery pack container according to the present invention.
【図２】図１に図示した電池パック容器の接合部を模式
的に示す断面図。FIG. 2 is a sectional view schematically showing a joint of the battery pack container shown in FIG. 1;
【図３】図２に図示した接合部の構造を模式的に示す拡
大断面図。FIG. 3 is an enlarged cross-sectional view schematically showing a structure of a joint shown in FIG. 2;
【図４】従来の電池パック容器の接合部を模式的に示す
断面図。FIG. 4 is a cross-sectional view schematically showing a joint portion of a conventional battery pack container.
１，２，３，４……電池パック容器分割片 1a，2a，3a，4a……被接合面 1b，4c……溶着リブ 3d……凹部 ５……電池パック容器 1, 2, 3, 4 ... Battery pack container divided pieces 1a, 2a, 3a, 4a ... Joined surfaces 1b, 4c ... Welding rib 3d ... Recess 5 ... Battery pack container
Claims (1)
溶着リブの超音波溶接で接合・一体化して成る樹脂製の
電池パック容器と、 前記電池パック容器内に装着された複数個の素電池およ
び前記素電池を電気的に接続する配線回路と、 前記配線回路に接続し電池パック容器壁部に導出・配置
された外部接続用端子部とを有する電池パックにおい
て、 前記電池パック容器は、溶着リブの配置面と対向する被
接合面に離隔して設けられた凹部を有し、互いに平面的
に対接する領域が超音波溶接され、凹部領域では対向す
る溶着リブが嵌合していることを特徴とする電池パッ
ク。1. A resin battery pack container in which opposing joined surfaces of battery pack container pieces are joined and integrated by ultrasonic welding of welding ribs, and a plurality of elements mounted in the battery pack container. In a battery pack having a wiring circuit for electrically connecting a battery and the unit cells, and an external connection terminal portion connected to the wiring circuit and led out and arranged on a battery pack container wall, the battery pack container includes: It has a concave portion provided separately from the surface to be welded opposite to the surface on which the welding rib is arranged, and the regions which are in planar contact with each other are ultrasonically welded, and the opposed welding ribs are fitted in the concave region. A battery pack characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16006297A JP3601940B2 (en) | 1997-06-17 | 1997-06-17 | Battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16006297A JP3601940B2 (en) | 1997-06-17 | 1997-06-17 | Battery pack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH117926A true JPH117926A (en) | 1999-01-12 |
| JP3601940B2 JP3601940B2 (en) | 2004-12-15 |
Family
ID=15707084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16006297A Expired - Fee Related JP3601940B2 (en) | 1997-06-17 | 1997-06-17 | Battery pack |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3601940B2 (en) |
-
1997
- 1997-06-17 JP JP16006297A patent/JP3601940B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3601940B2 (en) | 2004-12-15 |
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