JP2001313014A - Equipment case - Google Patents

Equipment case

Info

Publication number
JP2001313014A
JP2001313014A JP2000126762A JP2000126762A JP2001313014A JP 2001313014 A JP2001313014 A JP 2001313014A JP 2000126762 A JP2000126762 A JP 2000126762A JP 2000126762 A JP2000126762 A JP 2000126762A JP 2001313014 A JP2001313014 A JP 2001313014A
Authority
JP
Japan
Prior art keywords
case
thickness
welding
connection surface
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.)
Pending
Application number
JP2000126762A
Other languages
Japanese (ja)
Inventor
Yasuhiro Yamagami
康博 山上
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP2000126762A priority Critical patent/JP2001313014A/en
Publication of JP2001313014A publication Critical patent/JP2001313014A/en
Pending legal-status Critical Current

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
    • B29C66/50—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
    • 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
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
    • B29C66/12449—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue being asymmetric
    • 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
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1246—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove
    • B29C66/12463—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being tapered
    • 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
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1246—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove
    • B29C66/12469—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being asymmetric
    • 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
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1282—Stepped joint cross-sections comprising at least one overlap joint-segment
    • 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
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1284—Stepped joint cross-sections comprising at least one butt joint-segment
    • B29C66/12841—Stepped joint cross-sections comprising at least one butt joint-segment comprising at least two butt joint-segments
    • 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
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2424—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain
    • B29C66/24243—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral
    • B29C66/24244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral forming a rectangle
    • 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
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

PROBLEM TO BE SOLVED: To enable to attain a compactness and a light weight of an equipment case by making the case thinner while enhancing adhesion strength avoiding appearance defect, in combining a divided equipment case with an ultrasonic adhesion. SOLUTION: A joining face A1 has an adhesive rib 11 protruded from the face, while a joining face B1 has an adhesion groove 22 for the rib 11 to be inserted, which is arranged so as to separate the thickness of the joining face B1 into an inner side of the battery case and an appearance side, and further, has a slope 23 getting narrower as it gets deeper. The slope 23 makes the thickness of the appearance side greater as it gets deeper so that the thickness B of the appearance side is made bigger than the thickness of the inner side C at the end of the slant.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、例えばパック電池
のケースのように、二分割されたプラスチック製のケー
スを互いに超音波溶着して固定した機器ケースに関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an equipment case in which a two-part plastic case, such as a battery pack case, is fixed by ultrasonic welding to each other.

【０００２】[0002]

【従来の技術】超音波溶着は、熱可塑性のプラスチック
で成形されたケースを、超音波のエネルギーで、互いに
接触している連結面を振動させ、発熱、溶融して溶着す
ることができる。このため、接着剤を使用しないで強固
に連結できるので、携帯機器のように持ち運んだり、振
動や衝撃が与えられるような環境で使用される機器ケー
スの連結に適しており、パック電池のケース間の連結に
も多用されている。また、接着剤を使用しないので、機
器ケースを安価に製造することができる。2. Description of the Related Art In ultrasonic welding, a case formed of thermoplastic plastic can be welded by vibrating the connecting surfaces which are in contact with each other by ultrasonic energy, generating heat and melting. For this reason, it can be firmly connected without using an adhesive, so it is suitable for carrying like a portable device or connecting device cases used in an environment where vibration or shock is applied. It is also frequently used for linking. Further, since no adhesive is used, the device case can be manufactured at low cost.

【０００３】超音波溶着によって連結される機器ケース
の従来の構造について、図１及び図２に示す。図１はパ
ック電池の外観斜視図を示しており、内部にニッケル−
カドミウム電池やニッケル水素電池、リチウムイオン電
池等を１本または複数本収納すると共に、ケース表面に
内蔵する電池の出力を取り出す端子が設けられている。FIGS. 1 and 2 show a conventional structure of an equipment case connected by ultrasonic welding. FIG. 1 shows an external perspective view of a battery pack, in which nickel
One or a plurality of cadmium batteries, nickel-metal hydride batteries, lithium-ion batteries, and the like are accommodated, and a terminal for taking out the output of the battery built in the case surface is provided.

【０００４】このパック電池の外観はほぼ直方体形状と
なっており、ちょうど側面の中央部分で二分割されて、
各々電池ケースＡ及び電池ケースＢとなっている。電池
ケースＡ及び電池ケースＢは、互いに超音波溶着される
連結面Ａ１と連結面Ｂ１を有している。[0004] The external appearance of this battery pack has a substantially rectangular parallelepiped shape, and is divided into two parts at the center of the side surface.
A battery case A and a battery case B are provided, respectively. The battery case A and the battery case B have a connection surface A1 and a connection surface B1 that are ultrasonically welded to each other.

【０００５】各連結面Ａ１及び連結面Ｂ１の断面拡大図
を図２に示す。電池ケースＡの連結面Ａ１は溶着リブ１
１を突出して設けている。この溶着リブ１１は、連結面
Ａ１の肉厚全体のうち、機器ケースのほぼ内側半分の肉
厚で設けられる。そして、溶着リブ１１の先端部の幅が
細くなるように、傾斜面１２が形成されている。また、
連結面Ａ１において、溶着リブ１１が設けられていない
外観側の部分には、階段状の空間部１３が形成されてい
る。FIG. 2 is an enlarged cross-sectional view of each connecting surface A1 and connecting surface B1. The connection surface A1 of the battery case A is a welding rib 1
1 is provided to protrude. The welding rib 11 is provided with a thickness that is substantially half of the thickness of the inside of the device case among the entire thickness of the connection surface A1. The inclined surface 12 is formed so that the width of the distal end of the welding rib 11 is reduced. Also,
In the connecting surface A1, a step-shaped space portion 13 is formed in a portion on the appearance side where the welding rib 11 is not provided.

【０００６】一方、電池ケースＢの連結面Ｂ１は、前記
溶着リブ１１が接触するように、機器ケースの内側を一
段低くして形成されており、溶着リブ１１が接触する溶
着部２１としている。On the other hand, the connection surface B1 of the battery case B is formed by lowering the inside of the device case by one step so that the welding rib 11 comes into contact with the connection surface B1.

【０００７】以上のような構成において、電池ケースＡ
と電池ケースＢを連結するには、各々の連結面Ａ１とＢ
１とを接合させて、連結面１Ａの溶着リブ１１を連結面
１Ｂの溶着部２１に接触させる。そして、超音波エネル
ギーで、互いの接触面を振動させ、発熱、溶融して溶着
する。ここで、電池ケースＡの前記空間部１３は、溶着
時の発生するバリが外観に露出することを防止する等の
外観を整える役目をしている。In the above configuration, the battery case A
In order to connect the battery case B to each of the connecting surfaces A1 and B
1 and the welding rib 11 of the connecting surface 1A is brought into contact with the welding portion 21 of the connecting surface 1B. Then, the surfaces of contact with each other are vibrated by ultrasonic energy to generate heat, melt, and weld. Here, the space portion 13 of the battery case A has a role of adjusting an appearance such as preventing a burr generated at the time of welding from being exposed to the outside.

【０００８】[0008]

【発明が解決しようとする課題】ところで、このように
超音波溶着によって連結されるパック電池のような機器
ケースは、多種多様の携帯機器の開発に伴って、さらに
小型軽量化が望まれている。そのためには、機器ケース
自体をできるだけ薄くすることが必要である。By the way, with the development of a variety of portable devices, further reduction in size and weight of the device case such as a battery pack connected by ultrasonic welding is desired. . For that purpose, it is necessary to make the device case itself as thin as possible.

【０００９】しかしながら、機器ケースの肉厚を薄くす
ると、溶着強度が低下してしまう問題がある。機器ケー
スの肉厚を薄くすると、連結面１Ａの前記溶着リブ１１
の幅や、また連結面１Ｂの溶着部２１の幅が細くなって
しまい、溶融部分の体積が小さくなってしまうからであ
る。However, when the thickness of the equipment case is reduced, there is a problem that the welding strength is reduced. When the thickness of the device case is reduced, the welding rib 11 on the connecting surface 1A is reduced.
And the width of the welded portion 21 of the connecting surface 1B is reduced, and the volume of the fused portion is reduced.

【００１０】また、溶着リブ１１や溶着部２１の肉厚寸
法をそのままにして、外観側の肉厚を小さくすることに
によって、機器ケース全体の肉厚を薄くすることができ
るが、この場合、薄くした分だけ樹脂の強度が低下して
しまい、超音波溶着時の振動によって変形してしまい、
機器ケースの外観側に変形、割れ、亀裂等の外観不良が
発生してしまうという問題があった。Further, by reducing the thickness of the exterior side while keeping the thickness dimensions of the welding rib 11 and the welding portion 21, the thickness of the entire equipment case can be reduced. The strength of the resin decreases by the amount of thinning, and it is deformed by vibration during ultrasonic welding,
There is a problem in that appearance defects such as deformation, cracks, and cracks occur on the appearance side of the device case.

【００１１】従って、この発明は、二分割された機器ケ
ースを超音波溶着によって連結する場合に、溶着強度を
強くしながら、ケースの外観不良を招くことなく、ケー
スの肉厚を薄くすることができ、機器ケースの小型軽量
化を図れるようにしたものである。Therefore, according to the present invention, it is possible to reduce the wall thickness of the case without increasing the welding strength and inducing the appearance of the case when connecting the two divided device cases by ultrasonic welding. This makes it possible to reduce the size and weight of the device case.

【００１２】[0012]

【課題を解決するための手段】この発明は、上記課題を
解決するために、二分割された第一ケースと第二ケース
とから構成され、第一ケースの第一連結面と第二ケース
の第二連結面とが互いに超音波溶着されて連結された機
器ケースにおいて、第一連結面は、その連結面から突出
する方向に溶着リブを有しており、一方、第二連結面
は、前記溶着リブが挿入される溶着溝を有しており、こ
の溶着溝は、第二連結面の肉厚を第二ケースの内側と外
観側とに分離するように設けられ、且つ、溶着溝が深く
なるにつれて溶着溝の幅が狭くなる傾斜面を有してお
り、この傾斜面によって、溝が深くなるにつれて前記外
観側の肉厚を大きくし、傾斜面の終端において、外観側
の肉厚が内側の肉厚よりも大きくなるように構成されて
いることを特徴とするものである。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention comprises a first case and a second case, which are divided into two, and a first connecting surface of the first case and a second case. In a device case in which the second connection surface and the second connection surface are ultrasonically welded to each other and connected, the first connection surface has a welding rib in a direction protruding from the connection surface, while the second connection surface is The welding groove has a welding groove into which the welding rib is inserted. The welding groove is provided so as to separate the thickness of the second connection surface between the inside of the second case and the external side, and the welding groove is deep. The width of the welding groove becomes narrower as the groove becomes deeper, and the thickness of the outer side becomes larger as the groove becomes deeper. Characterized by being configured to be larger than the thickness of the Than it is.

【００１３】[0013]

【発明の実施の形態】本発明の実施例を図面に基づき説
明する。本発明の機器ケースは、図１に示される従来例
のものと外観上はほぼ同じである。即ち、このパック電
池の外観はほぼ直方体形状となっており、ちょうど側面
の中央部分で二分割されて、各々電池ケースＡ及び電池
ケースＢとなっている。電池ケースＡ及び電池ケースＢ
は、互いに超音波溶着される連結面Ａ１と連結面Ｂ１を
有している。Embodiments of the present invention will be described with reference to the drawings. The appearance of the device case of the present invention is almost the same as that of the conventional example shown in FIG. That is, the external appearance of the battery pack has a substantially rectangular parallelepiped shape, and is divided into two parts at the center part of the side surface to form a battery case A and a battery case B, respectively. Battery case A and battery case B
Has a connection surface A1 and a connection surface B1 that are ultrasonically welded to each other.

【００１４】各連結面Ａ１及び連結面Ｂ１の断面拡大図
を図３に示す。電池ケースＡの連結面Ａ１は溶着リブ１
１を突出して設けている。この溶着リブ１１は、連結面
Ａ１の肉厚全体のうち、機器ケースの内側と外観側の一
部の肉厚を除く中央領域に設けられる。また、連結面Ａ
１において、溶着リブ１１が設けられていない外観側の
部分には、内側の部分よりも切り欠きを大きくして、空
間部１３が形成されている。FIG. 3 is an enlarged cross-sectional view of each connecting surface A1 and connecting surface B1. The connection surface A1 of the battery case A is a welding rib 1
1 is protrudingly provided. The welding rib 11 is provided in a central region of the entire thickness of the connection surface A1 except for a part of the thickness on the inside and outside of the device case. Also, connecting surface A
In FIG. 1, a space portion 13 is formed in a portion on the appearance side where the welding rib 11 is not provided, with a notch larger than that on the inside portion.

【００１５】一方、電池ケースＢの連結面Ｂ１は、前記
溶着リブ１１が挿入される溶着溝２２が形成されてい
る。この溶着溝２２は、前記溶着リブ１１と同様に、連
結面Ｂ１の肉厚全体のうち、内側と外観側とに分離する
ように中央領域に設けられている。そして、溶着溝２２
は、深くなるにつれて溶着溝２２の幅が狭くなる傾斜面
２３を有しており、この傾斜面２３によって、溝が深く
なるにつれて前記外観側の肉厚を大きくし、傾斜面２３
の終端において、外観側の肉厚が内側の肉厚よりも大き
くなるように構成されている。On the other hand, a welding groove 22 into which the welding rib 11 is inserted is formed in the connecting surface B1 of the battery case B. Like the welding rib 11, the welding groove 22 is provided in the central region so as to be separated into the inner side and the outer side of the entire thickness of the connecting surface B1. And the welding groove 22
Has an inclined surface 23 in which the width of the welding groove 22 becomes narrower as the groove becomes deeper, and the inclined surface 23 increases the thickness of the outer side as the groove becomes deeper.
Is configured such that the thickness on the outer side is greater than the thickness on the inner side.

【００１６】即ち、図４の寸法比率説明図において、連
結面Ｂ１の肉厚のうち、外観側の表面の肉厚を寸法Ａと
すると、傾斜面２３によって、傾斜面２３の終端での外
観側の肉厚寸法Ｂとの関係はＢ＞Ａとなる。さらに、傾
斜面２３の終端での外観側の肉厚寸法Ｂと、内側の肉厚
寸法Ｃとの関係はＢ＞Ｃとなるように構成されている。That is, in the dimension ratio explanatory diagram of FIG. 4, when the thickness of the outer surface is set to the dimension A in the thickness of the connecting surface B1, the outer surface at the end of the inclined surface 23 is formed by the inclined surface 23. The relationship with the wall thickness B is B> A. Furthermore, the relationship between the outer-side thickness B at the end of the inclined surface 23 and the inner thickness C is such that B> C.

【００１７】以上のような構成において、電池ケースＡ
と電池ケースＢを連結するには、各々の連結面Ａ１とＢ
１とを接合させて、連結面１Ａの溶着リブ１１を連結面
１Ｂの溶着溝２２に挿入させる。そして、超音波エネル
ギーで、互いの接触面を振動させ、発熱、溶融して溶着
する。ここで、電池ケースＡの前記空間部１３は、溶着
時の発生するバリが外観に露出することを防止する等の
外観を整える役目をしている。In the above configuration, the battery case A
In order to connect the battery case B to each of the connecting surfaces A1 and B
1 and the welding rib 11 of the connecting surface 1A is inserted into the welding groove 22 of the connecting surface 1B. Then, the surfaces of contact with each other are vibrated by ultrasonic energy to generate heat, melt, and weld. Here, the space portion 13 of the battery case A has a role of adjusting an appearance such as preventing a burr generated at the time of welding from being exposed to the outside.

【００１８】ここで、前記溶着リブ１１は、溶着溝２２
に挿入されて両者が接合されるため、互いの電池ケース
Ａ及びＢを正確に位置決めすることができる。挿入され
た溶着リブ１１は、溶着リブ１１の隅部が溶着溝２２に
おける傾斜面２３と当接することにより、傾斜面２３の
下方領域を溶融する。この傾斜面２３は溶着溝２２が深
くなるにつれて外観側の肉厚寸法を寸法Ａから寸法Ｂへ
と大きくしているから、溶融が行われる溶着反応部の体
積を充分大きくすることができると同時に、機器ケース
の外観側に、変形、割れ、亀裂等の外観不良を招くこと
もない。Here, the welding rib 11 is provided with a welding groove 22.
And the battery cases A and B can be accurately positioned. The inserted welding rib 11 melts a region below the inclined surface 23 when the corner of the welding rib 11 abuts on the inclined surface 23 of the welding groove 22. Since the inclined surface 23 increases the thickness of the exterior side from the dimension A to the dimension B as the depth of the welding groove 22 increases, the volume of the welding reaction portion where the melting is performed can be sufficiently increased, and at the same time, Also, the appearance defect such as deformation, cracking and cracking does not occur on the appearance side of the equipment case.

【００１９】しかも、傾斜面２３の終端での外観側の肉
厚寸法Ｂと、内側の肉厚寸法Ｃとの関係はＢ＞Ｃとなる
ように構成されているため、連結面Ｂ１の肉厚全体（Ｂ
＋Ｃ）に占める寸法Ｂの比率を大きくすることで、溶着
強度に寄与する寸法Ｂを大きくしながら、全体の肉厚が
必要以上に大きくならないようにすることができる。言
い換えると、溶着強度を大きくしながら、ケースの肉厚
を薄くすることができる。本発明によれば、充分な溶接
強度を得るために、従来１ｍｍ以上の肉厚を必要として
いたのに対し、０．６５ｍｍの肉厚でも充分な溶接強度
を得ることができ、ケースを薄くして機器ケース全体の
小型軽量化を図ることができる。In addition, since the relationship between the thickness B on the outer side and the thickness C on the inner side at the end of the inclined surface 23 is configured so that B> C, the thickness of the connecting surface B1 is increased. Whole (B
By increasing the ratio of the dimension B to + C), it is possible to increase the dimension B contributing to the welding strength, while preventing the overall thickness from becoming unnecessarily large. In other words, the thickness of the case can be reduced while increasing the welding strength. According to the present invention, in order to obtain a sufficient welding strength, a wall thickness of at least 1 mm was conventionally required, but a sufficient welding strength can be obtained even with a wall thickness of 0.65 mm. Thus, the size and weight of the entire device case can be reduced.

【００２０】[0020]

【発明の効果】本発明によれば、二分割ケースの連結
時、第一ケースの第一連結面に設けた溶着リブを、第二
ケースの第二連結面に設けた溶着溝に挿入するので、各
ケースを正確に位置決めすることができる。According to the present invention, the welding rib provided on the first connecting surface of the first case is inserted into the welding groove provided on the second connecting surface of the second case when the two-part case is connected. Thus, each case can be accurately positioned.

【００２１】さらに、溶着溝に設けた傾斜面によって、
溝が深くなるにつれて前記外観側の肉厚を大きくし、傾
斜面の終端において、外観側の肉厚が内側の肉厚よりも
大きくなるように構成されているから、溶着リブが傾斜
面に接触して溶融が行われる際に、溶融が行われる溶着
反応部の体積を充分大きくすることができると同時に、
機器ケースの外観側に、変形、割れ、亀裂等の外観不良
を招くこともない。Further, by the inclined surface provided in the welding groove,
As the depth of the groove is increased, the thickness of the outer side is increased, and the thickness of the outer side is larger than the inner thickness at the end of the inclined surface. When the melting is performed, the volume of the welding reaction section where the melting is performed can be sufficiently increased, and at the same time,
There is no appearance defect such as deformation, cracking or cracking on the external side of the equipment case.

【００２２】しかも、第二連結面の肉厚全体に占める溶
着に寄与する寸法の比率を大きくすることで、溶着強度
に寄与する寸法を大きくしながら、全体の肉厚が必要以
上に大きくならないようにすることができる。言い換え
ると、溶着強度を大きくしながら、ケースの肉厚を薄く
することができる。従って、機器ケースの小型軽量化を
図ることができる。In addition, by increasing the ratio of the dimension contributing to welding to the entire thickness of the second connecting surface, it is possible to increase the dimension contributing to the welding strength while preventing the overall thickness from becoming unnecessarily large. Can be In other words, the thickness of the case can be reduced while increasing the welding strength. Therefore, the size and weight of the device case can be reduced.

【図面の簡単な説明】[Brief description of the drawings]

【図１】パック電池の外観斜視図FIG. 1 is an external perspective view of a battery pack.

【図２】従来のパック電池の重要部断面拡大図FIG. 2 is an enlarged cross-sectional view of an important part of a conventional battery pack.

【図３】本発明パック電池の分解斜視図FIG. 3 is an exploded perspective view of the battery pack of the present invention.

【図４】本発明パック電池の寸法比率説明図FIG. 4 is an explanatory view of a dimensional ratio of the battery pack of the present invention.

【符号の説明】[Explanation of symbols]

Ａ 電池ケース Ａ１ 連結面 Ｂ 電池ケース Ｂ１ 連結面 １１ 溶着リブ １２ 傾斜面 １３ 空間部 ２１ 溶着部 ２２ 溶着溝 ２３ 傾斜面 Reference Signs List A battery case A1 connection surface B battery case B1 connection surface 11 welding rib 12 inclined surface 13 space portion 21 welding portion 22 welding groove 23 inclined surface

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 二分割された第一ケースと第二ケースと
から構成され、第一ケースの第一連結面と第二ケースの
第二連結面とが互いに超音波溶着されて連結された機器
ケースにおいて、第一連結面は、その連結面から突出す
る方向に溶着リブを有しており、一方、第二連結面は、
前記溶着リブが挿入される溶着溝を有しており、この溶
着溝は、第二連結面の肉厚を第二ケースの内側と外観側
とに分離するように設けられ、且つ、溶着溝が深くなる
につれて溶着溝の幅が狭くなる傾斜面を有しており、こ
の傾斜面によって、溝が深くなるにつれて前記外観側の
肉厚を大きくし、傾斜面の終端において、外観側の肉厚
が内側の肉厚よりも大きくなるように構成されているこ
とを特徴とする機器ケース。1. An apparatus comprising a first case and a second case divided into two parts, wherein the first connection surface of the first case and the second connection surface of the second case are connected by ultrasonic welding to each other. In the case, the first connection surface has a welding rib in a direction protruding from the connection surface, while the second connection surface is
The welding rib has a welding groove to be inserted, the welding groove is provided so as to separate the thickness of the second connection surface between the inside of the second case and the outer appearance side, and the welding groove is It has an inclined surface in which the width of the welding groove becomes narrower as the depth increases, and the inclined surface increases the thickness on the external side as the groove becomes deeper, and at the end of the inclined surface, the external side thickness increases. An equipment case configured to be larger than an inner wall thickness.
JP2000126762A 2000-04-27 2000-04-27 Equipment case Pending JP2001313014A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000126762A JP2001313014A (en) 2000-04-27 2000-04-27 Equipment case

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000126762A JP2001313014A (en) 2000-04-27 2000-04-27 Equipment case

Publications (1)

Publication Number Publication Date
JP2001313014A true JP2001313014A (en) 2001-11-09

Family

ID=18636473

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000126762A Pending JP2001313014A (en) 2000-04-27 2000-04-27 Equipment case

Country Status (1)

Country Link
JP (1) JP2001313014A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009126085A (en) * 2007-11-26 2009-06-11 Sato Light Kogyo Kk Method for joining resin moldings and resin joined body
JP2012002342A (en) * 2010-06-21 2012-01-05 Sato Light Kogyo Kk Airtight pressure vessel and manufacturing method of the same
US8183831B2 (en) 2007-09-17 2012-05-22 Samsung Sdi Co., Ltd. Battery pack
CN106972123A (en) * 2015-12-04 2017-07-21 罗伯特·博世有限公司 shell for battery pack system
JP7400488B2 (en) 2020-01-20 2023-12-19 株式会社Ｇｓユアサ Power storage device
JP7508172B2 (en) 2020-11-23 2024-07-01 エルジー エナジー ソリューション リミテッド Battery pack case with structure to prevent over-welding

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8183831B2 (en) 2007-09-17 2012-05-22 Samsung Sdi Co., Ltd. Battery pack
JP2009126085A (en) * 2007-11-26 2009-06-11 Sato Light Kogyo Kk Method for joining resin moldings and resin joined body
JP2012002342A (en) * 2010-06-21 2012-01-05 Sato Light Kogyo Kk Airtight pressure vessel and manufacturing method of the same
CN106972123A (en) * 2015-12-04 2017-07-21 罗伯特·博世有限公司 shell for battery pack system
JP7400488B2 (en) 2020-01-20 2023-12-19 株式会社Ｇｓユアサ Power storage device
JP7508172B2 (en) 2020-11-23 2024-07-01 エルジー エナジー ソリューション リミテッド Battery pack case with structure to prevent over-welding

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