JP2002319382A - Battery pack having water-proof function - Google Patents
Battery pack having water-proof functionInfo
- Publication number
- JP2002319382A JP2002319382A JP2001123088A JP2001123088A JP2002319382A JP 2002319382 A JP2002319382 A JP 2002319382A JP 2001123088 A JP2001123088 A JP 2001123088A JP 2001123088 A JP2001123088 A JP 2001123088A JP 2002319382 A JP2002319382 A JP 2002319382A
- Authority
- JP
- Japan
- Prior art keywords
- battery pack
- battery
- connection terminal
- built
- resin layer
- 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、防水機能を有する
電池パックに関するものであり、とくに携帯電話等に用
いられる充放電制御回路部品と電池からなる内蔵部品を
有し、電池パックの壁面に設けた導電接続端子によって
電池パック使用機器との間で導電接続を形成するた防水
機能を有する電池パックに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery pack having a waterproof function, and more particularly, to a battery pack having a built-in component consisting of a battery and a charge / discharge control circuit component used for a cellular phone or the like, and provided on a wall surface of the battery pack. The present invention relates to a battery pack having a waterproof function in which conductive connection terminals are used to form conductive connections with equipment using the battery pack.
【０００２】[0002]
【従来の技術】携帯電話等の携帯型の電子機器に用いら
れるリチウムイオン電池、ポリマーリチウム電池は、電
池単体で用いられることは少なく、電池の端子が短絡さ
れた場合等の過大な電流が流れた際、あるいは電池が高
温度になった場合に通電を遮断する安全装置等とともに
合成樹脂製の筺体に収納した電池パックとし携帯電話等
の電子機器に装着している。2. Description of the Related Art Lithium-ion batteries and polymer lithium batteries used in portable electronic devices such as mobile phones are rarely used alone, and an excessive current flows when a battery terminal is short-circuited. The battery pack is housed in a synthetic resin housing together with a safety device that shuts off the current when the battery becomes hot or when the temperature of the battery becomes high, and is mounted on an electronic device such as a mobile phone.
【０００３】携帯電話等は屋外で使用されることが多
く、電池パック使用機器本体の防水性能を高めることが
行われている。防水機能を有する電池使用機器に装着す
る電池パックは勿論、電池使用機器本体が防水機能を有
さない場合においても、誤って電池パックを水中へ落下
した場合にもその性能が損なわれないようにする防水機
能を有する電池パックが求められている。[0003] Portable telephones and the like are often used outdoors, and the waterproof performance of a device using a battery pack is enhanced. Not only the battery pack attached to a battery-equipped device that has a waterproof function, but also if the battery-equipped device body does not have a waterproof function, ensure that its performance will not be impaired if the battery pack is accidentally dropped into water. There is a demand for a battery pack having a waterproof function.
【０００４】電池パックには、構成部材を合成樹脂で被
覆したものが知られている。例えば、特開２０００−３
１５４８３には、本願の発明と同様に壁面に導電接続端
子を設けた電池パックが提案されている。しかしなが
ら、回路基板に導電接続した正極端子および負極端子に
ホルダーを被せた状態で、被覆用の合成樹脂を流し込ん
で被覆するものであるので、電池パックが水没した場合
にはホルダーとの隙間から水が浸入して回路基板に付着
する可能性があった。そこで、こうした外部回路との接
続部分からの水の浸入を防止した電池パックとして、導
電接続端子部の防水性を高める方法が考えられる。[0004] A battery pack in which constituent members are covered with a synthetic resin is known. For example, JP-A-2000-3
No. 15,483 proposes a battery pack in which conductive connection terminals are provided on a wall surface as in the invention of the present application. However, since the synthetic resin for coating is poured and covered in a state where the holder is placed over the positive electrode terminal and the negative electrode terminal that are conductively connected to the circuit board, when the battery pack is submerged, water flows through a gap between the battery pack and the holder. Could enter and adhere to the circuit board. Therefore, as a battery pack that prevents the intrusion of water from the connection portion with the external circuit, a method of increasing the waterproofness of the conductive connection terminal portion can be considered.
【０００５】図５は、従来の防水機能を高めた電池パッ
クの内蔵部品の一例を説明する図であり、図５（Ａ）
は、表面を示す図であり、図５（Ｂ）は裏面を示す図で
ある。電池パックの接続端子部の開口を有した上部筐
体、下蓋筐体内に設ける内蔵部品を説明する図である。
内蔵部品４を構成する電池５はその周囲を合成樹脂製粘
着テープ２０で被覆され、また、充放電制御回路基板６
は、防水性合成樹脂層２３で被覆されている。充電器接
続端子８の周囲には、粘着層を有する防水部材２１が貼
り付けられており、また、同様に電池使用機器用接続端
子９の周囲にも防水部材２２が貼り付けられていた。FIG. 5 is a view for explaining an example of a conventional built-in component of a battery pack having an improved waterproof function.
Is a diagram showing a front surface, and FIG. 5B is a diagram showing a back surface. FIG. 5 is a diagram illustrating built-in components provided in an upper housing and a lower lid housing having openings of connection terminal portions of a battery pack.
The battery 5 constituting the built-in component 4 is covered with a synthetic resin adhesive tape 20 around its periphery.
Is covered with a waterproof synthetic resin layer 23. A waterproof member 21 having an adhesive layer was attached around the charger connection terminal 8, and a waterproof member 22 was similarly attached around the battery-powered device connection terminal 9.
【０００６】ところが、携帯機器用の電池パックにおい
ては、小型軽量化するために、充電器接続端子あるいは
電池使用機器接続端子は、回路基板上に形成した部品が
使用されている。こうした部品では、回路基板上に設け
た接続端子との接続のための回路パターンがその表面に
存在しており、接続端子の周囲には、回路パターンによ
って凹凸が生じることは避けることができなかった。こ
のために、接続端子の周囲に貼り付けられた防水部材の
表面にも凹凸が生じるので、防水部材の表面に形成され
た凹凸によって防水部材と、筐体の開口部との間での防
水性能が低下することが避けられなかった。また、内蔵
部品の電池および充放電制御回路基板の処理工程が複雑
であるために、手作業に頼らざるを得ず、生産性にも問
題点があった。However, in a battery pack for a portable device, parts formed on a circuit board are used for a charger connection terminal or a battery use device connection terminal in order to reduce the size and weight. In such a component, a circuit pattern for connection with a connection terminal provided on a circuit board is present on its surface, and it is unavoidable that the circuit pattern has irregularities around the connection terminal. . For this reason, unevenness also occurs on the surface of the waterproof member attached to the periphery of the connection terminal. Therefore, the waterproof performance between the waterproof member and the opening of the housing due to the unevenness formed on the surface of the waterproof member. Inevitably declined. In addition, since the processing steps of the battery and the charge / discharge control circuit board of the built-in component are complicated, the user has to rely on manual work, and there is a problem in productivity.
【０００７】[0007]
【発明が解決しようとする課題】本発明は、電池パック
に防水機能を付与することを課題とするものであり、電
池パック内部への水の浸入を防止することを課題とする
ものであり、万一浸入した場合においても電池パックと
しての機能を保持することができる電池パックを提供す
ることを課題とするものである。そして、信頼性が高く
品質が安定した製品を自動化した工程において製造が可
能な防水機能を有する電池パックを提供することを課題
とするものである。SUMMARY OF THE INVENTION It is an object of the present invention to provide a battery pack with a waterproof function, and to prevent water from entering inside the battery pack. It is an object of the present invention to provide a battery pack that can maintain its function as a battery pack even in the event of intrusion. It is another object of the present invention to provide a battery pack having a waterproof function that can be manufactured in a process of automating a highly reliable and stable product.
【０００８】[0008]
【課題を解決するための手段】本発明の課題は、防水機
能を有する電池パックにおいて、機器との接続端子部用
の開口を有する電池パック外装材、電池および充放電制
御回路を有する回路基板からなる内蔵部品からなり、内
蔵部品は機器との接続端子部を除く部分の少なくとも一
部が熱可塑性樹脂層によって被覆され、少なくとも一部
の機器との接続端子の周囲は、平坦な熱可塑性樹脂層上
に防水部材を設けて電池パック外装材と接触するととも
に電池パック外装材の周囲は密閉されていること防水機
能を有する電池パックによって解決することができる。
全ての機器との接続端子の周囲が、平坦な熱可塑性樹脂
層上に防水部材を設けたものである前記の電池パックで
ある。充電器と接続する機器との接続用端子の周囲は、
熱可塑性樹脂層を形成することなく防水部材を貼り付け
た前記の電池パックである。機器との接続用端子部が、
絶縁性の基体上にパターン化されて形成したものである
前記の電池パックである。内蔵部品上に形成した熱可塑
性樹脂層が射出成形によって形成された前記の防水機能
を有する電池パックである。熱可塑性樹脂層がポリアミ
ド樹脂によって形成されたものである前記の防水機能を
有する電池パックである。SUMMARY OF THE INVENTION An object of the present invention is to provide a battery pack having a waterproof function, comprising: a battery pack exterior material having an opening for a connection terminal for equipment; a battery; and a circuit board having a charge / discharge control circuit. At least a part of the built-in component except for the connection terminal portion with the device is covered with a thermoplastic resin layer, and at least a portion of the connection terminal with the device is a flat thermoplastic resin layer. It is possible to solve the problem by a battery pack having a waterproof function that a waterproof member is provided thereon to make contact with the battery pack exterior material and that the periphery of the battery pack exterior material is sealed.
The above battery pack has a structure in which a waterproof member is provided on a flat thermoplastic resin layer around connection terminals to all devices. The area around the connection terminal between the charger and the device to be connected
The battery pack is a battery pack to which a waterproof member is attached without forming a thermoplastic resin layer. The terminal for connection with the device is
The battery pack described above is formed by patterning on an insulating substrate. A battery pack having the above-mentioned waterproof function, wherein a thermoplastic resin layer formed on a built-in component is formed by injection molding. The battery pack having the waterproof function, wherein the thermoplastic resin layer is formed of a polyamide resin.
【０００９】[0009]
【発明の実施の形態】本発明は、電池パックの内蔵部品
の防水および保護を、射出成形工程によって行うと共
に、射出成形工程によって形成した平滑な表面上に防水
部材を設けることによって防水部材の表面を平滑とする
ことができるので、防水部材と電池パックの筐体の開口
部との間の防水性能を高めることが可能であることを見
出したものである。BEST MODE FOR CARRYING OUT THE INVENTION The present invention provides waterproofing and protection of built-in components of a battery pack by an injection molding step, and providing a waterproofing member on a smooth surface formed by the injection molding step. Has been found to be able to increase the waterproof performance between the waterproof member and the opening of the battery pack housing.
【００１０】以下に図面を参照して、本発明を説明す
る。図１は、本発明の防水機能を有する電池パックの一
実施例を説明する図であり、分解斜視図である。電池パ
ック１は、電池パック外装体を形成する上部筐体２、お
よび下蓋筐体３によって密閉された内部空間に内蔵部品
４を有している。内蔵部品４は、電池５とともに、充放
電制御回路基板６、電池使用機器接続端子用基板７、充
電器接続端子用基板８を有しており、それぞれ、接続端
子を除いて熱可塑性樹脂層が形成されている。電池使用
機器接続端子９の周囲には、電池使用機器接続端子防水
部材１０が貼り付けられており、充電器接続端子用基板
の裏面には、同様に充電器接続端子防水部材（図示せ
ず）が粘着剤によって貼り付けられている。また、内蔵
部品４は、上部筐体２および下部筐体３の周囲が超音波
溶接等の方法によって熱融着して封口される際に、防水
部材が上部筐体、下部筐体と密着することによって電池
使用機器接続端子用開口部１２、充電器接続端子用開口
部１３は確実に封口されて充分な防水性能が得られる。The present invention will be described below with reference to the drawings. FIG. 1 is a diagram illustrating an embodiment of a battery pack having a waterproof function according to the present invention, and is an exploded perspective view. The battery pack 1 has a built-in component 4 in an internal space sealed by an upper housing 2 forming a battery pack exterior body and a lower lid housing 3. The built-in component 4 has a charge / discharge control circuit board 6, a battery-using device connection terminal board 7, and a charger connection terminal board 8 together with the battery 5, each of which has a thermoplastic resin layer except for the connection terminals. Is formed. A battery-using device connection terminal waterproof member 10 is attached around the battery-using device connection terminal 9, and a charger connection terminal waterproof member (not shown) is similarly provided on the back surface of the charger connection terminal substrate. Is attached with an adhesive. In addition, when the periphery of the upper housing 2 and the lower housing 3 is heat-sealed and sealed by a method such as ultrasonic welding, the built-in component 4 makes the waterproof member adhere to the upper housing and the lower housing. As a result, the opening 12 for the battery-powered device connection terminal and the opening 13 for the charger connection terminal are reliably sealed, and sufficient waterproof performance can be obtained.
【００１１】次に、本発明の防水機能を有する電池パッ
クの製造方法について説明する。図２は、内蔵部品の一
実施例を説明する図であり、図２（Ａ）は、表面を示す
図であり、図２（Ｂ）は裏面を示す図である。内蔵部品
４は、電池５の周囲に、充放電制御回路基板６、電池使
用機器接続端子用基板７、充電器接続端子用基板８を有
しており、それぞれ電池使用機器接続端子９、充電器接
続端子１４が設けられている。また、一方の電池電極１
５と充放電制御回路基板６との間には、外部回路の短絡
等によって電池反応の異常によって電池の温度が異常な
高温度となった場合に電流を遮断するＰＴＣ素子１６が
接続されている。Next, a method for manufacturing a battery pack having a waterproof function according to the present invention will be described. 2A and 2B are diagrams illustrating an embodiment of a built-in component. FIG. 2A is a diagram illustrating a front surface, and FIG. 2B is a diagram illustrating a back surface. The built-in component 4 has a charge / discharge control circuit board 6, a battery-using equipment connection terminal board 7, and a charger connection terminal board 8 around the battery 5, and the battery-using equipment connection terminal 9 and the charger, respectively. A connection terminal 14 is provided. Also, one battery electrode 1
A PTC element 16 that cuts off the current when the battery temperature becomes abnormally high due to an abnormal battery reaction due to a short circuit in an external circuit or the like, is connected between the PTC element 5 and the charge / discharge control circuit board 6. .
【００１２】図３に、熱可塑性樹脂による被覆された内
蔵部品を示し、図３（Ａ）は表面を、図３（Ｂ）は裏面
を示す。内蔵部品４の少なくとも一部には、斜線で示す
ように熱可塑性樹脂層１７が形成される。熱可塑性樹脂
層１７は、内蔵部品４を金型に装着して、熱可塑性樹脂
を射出成形することによって、所望の領域に所定の厚さ
の膜厚で正確に形成することができる。図に示した例で
は、充放電制御回路６は、熱可塑性樹脂によって完全に
被覆されており、また、ＰＴＣ素子１６は、正常動作時
におけるＰＴＣ素子の発熱によってＰＴＣ素子が動作し
ないようにするために、放熱性を高めるために防水性テ
ープ１８によって電池電極１５と共に被覆されている。
また、電池使用機器接続端子用基板７、充電器接続端子
用基板８は、それぞれ接続端子部分を残して表面が平坦
な熱可塑性樹脂層が形成されている。FIG. 3 shows a built-in component covered with a thermoplastic resin. FIG. 3 (A) shows a front surface, and FIG. 3 (B) shows a back surface. A thermoplastic resin layer 17 is formed on at least a part of the built-in component 4 as shown by oblique lines. The thermoplastic resin layer 17 can be accurately formed in a desired region with a predetermined thickness by mounting the built-in component 4 in a mold and injection-molding the thermoplastic resin. In the example shown in the figure, the charge / discharge control circuit 6 is completely covered with a thermoplastic resin, and the PTC element 16 is used to prevent the PTC element from operating due to heat generated by the PTC element during normal operation. Further, the battery electrode 15 is covered with a waterproof tape 18 in order to enhance heat dissipation.
In addition, the substrate 7 for the battery-using device connection terminal and the substrate 8 for the charger connection terminal are each formed with a thermoplastic resin layer having a flat surface except for the connection terminal portion.
【００１３】充電器接続端子用基板８に形成されている
導電パターンは、通電電流値の観点から電池使用機器接
続端子用基板７に形成されている導電パターンに比べ
て、横幅が大きなものが形成されている。このために、
充電器接続端子用基板８は、凹部の面積が小さなものと
なるために、直接に充電器接続端子防水部材を貼り付け
ても表面に凹凸が生じない場合がある。この場合には、
充電器接続端子用基板には、熱可塑性樹脂層を形成しな
くても充分な防水性能を得ることが可能となる。The conductive pattern formed on the charger connection terminal substrate 8 has a larger width than the conductive pattern formed on the battery-powered equipment connection terminal substrate 7 from the viewpoint of the supplied current value. Have been. For this,
Since the area of the concave portion of the charger connecting terminal substrate 8 is small, unevenness may not be generated on the surface even when the charger connecting terminal waterproof member is directly attached. In this case,
A sufficient waterproof performance can be obtained without forming a thermoplastic resin layer on the charger connection terminal substrate.
【００１４】熱可塑性樹脂層としては、ポリウレタン樹
脂、ポリアミド樹脂等の熱融着性が良好な合成樹脂を用
いることができるが、成形時の温度および圧力が低く、
接着性能の大きなものが回路部品へ与える熱的、あるい
は機械的な圧力等の影響が小さいので好ましい。また、
成形が短時間で可能であり、粘度が小さく狭い部分にも
容易に充填できるものが好ましい。具体的には、ダイマ
ー酸と各種のジカルボン酸、ジアミンとの反応によって
得られる熱可塑性ポリアミド樹脂が好ましい。As the thermoplastic resin layer, a synthetic resin having good heat-sealing properties such as a polyurethane resin and a polyamide resin can be used, but the temperature and pressure during molding are low.
A material having a high adhesive performance is preferable because the effect of thermal or mechanical pressure on circuit components is small. Also,
It is preferable to use a material that can be molded in a short time and can easily fill a narrow portion with low viscosity. Specifically, a thermoplastic polyamide resin obtained by reacting dimer acid with various dicarboxylic acids and diamines is preferable.
【００１５】射出成形によって熱可塑性樹脂層が形成さ
れた内蔵部品には、図４に示すように防水部材が貼り付
けられる。図４（Ａ）は、表面を説明する図であり、図
４（Ｂ）は、裏面を説明する図である。電池使用機器接
続端子９の周囲には、電池使用機器接続端子防水部材１
０が貼り付けられており、充電器接続端子８の周囲に
は、充電器接続端子防水部材１１が貼り付けられてい
る。これらの防水部材としては、裏面に粘着材層を有
し、防水性能が大きな合成樹脂製テープを用いることが
できる。具体的には、応力分散して均一な密着面を形成
するアクリル樹脂の発泡体を基材としたアクリルフォー
ムテープ、ブチルゴム製の粘着テープ類を用いることが
できる。以上のようにして得られた内蔵部品を、接続端
子用の開口部を設けた上部筐体と下部筐体によって挟み
込み、周囲を超音波溶接等の接合手段によって接合する
ことによって、防水機能を有する電池パックを得ること
ができる。As shown in FIG. 4, a waterproof member is attached to the built-in component on which the thermoplastic resin layer is formed by injection molding. FIG. 4A is a diagram illustrating a front surface, and FIG. 4B is a diagram illustrating a rear surface. Around the battery-powered equipment connection terminal 9, a battery-powered equipment connection terminal waterproof member 1 is provided.
0 is attached, and a charger connecting terminal waterproof member 11 is attached around the charger connecting terminal 8. As these waterproof members, a synthetic resin tape having an adhesive layer on the back surface and having high waterproof performance can be used. Specifically, an acrylic foam tape or a butyl rubber adhesive tape based on an acrylic resin foam that forms a uniform contact surface by dispersing stress can be used. The built-in component obtained as described above is sandwiched between an upper housing and a lower housing provided with an opening for a connection terminal, and has a waterproof function by being joined by joining means such as ultrasonic welding. A battery pack can be obtained.
【００１６】[0016]
【実施例】以下に実施例を示し本発明を説明する。 実施例１ 縦４８ｍｍ、横３０ｍｍ、厚さ４ｍｍのリチウムイオン
電池に、図２に示すように各部品を射出成形用金型内に
配置し、電池使用機器接続端子用基板には、０．４ｍｍ
の厚さで被覆層を形成され、また充放電制御回路基板は
完全に被覆されるように熱融着性ポリアミド樹脂（ヘン
ケルジャパン製 ＭＭ６２０８）を温度２００℃、圧力
２．９ＭＰａ、時間３秒間で射出成形した。次いで、電
池使用機器接続端子の周囲、および充電器接続端子の周
囲に、それぞれの端子部に相当する部分に開口部を形成
した粘着剤層を有する厚さ０．４ｍｍのアクリルフォー
ムテープ（スリーエム製）を貼り付けた後に、上部筐体
および下部筐体で内蔵部品を挟み込み、上部筐体と下部
筐体の周囲を超音波溶接を行って防水機能を有する電池
パックを作製した。得られた電池パックを水深１ｍの水
中に２４時間放置した場合にも電池パックとしての機能
に影響は生じなかった。The present invention will be described below with reference to examples. Example 1 Each component was placed in an injection molding die as shown in FIG. 2 in a lithium ion battery having a length of 48 mm, a width of 30 mm, and a thickness of 4 mm.
A heat-fusible polyamide resin (MM6208, manufactured by Henkel Japan) is applied at a temperature of 200 ° C. under a pressure of 2.9 MPa for 3 seconds so that the charge / discharge control circuit board is completely covered. Injection molded. Then, an acrylic foam tape (manufactured by 3M) having a pressure-sensitive adhesive layer having an opening formed in a portion corresponding to each terminal around the battery-using device connection terminal and the charger connection terminal. ), The built-in components were sandwiched between the upper housing and the lower housing, and the periphery of the upper housing and the lower housing was subjected to ultrasonic welding to produce a battery pack having a waterproof function. When the obtained battery pack was left in water at a depth of 1 m for 24 hours, the function as the battery pack was not affected.
【００１７】[0017]
【発明の効果】本発明の電池パックは、内蔵部品の所定
の部分を熱可塑性合成樹脂を射出成形することによって
被覆するとともに、少なくとも一部の外部回路との接続
端子部の周囲に熱可塑性樹脂層を形成して平坦なものと
した後に防水部材を配置し、上部筐体および下部筐体に
よって熱溶着したものであり、接続端子部での防水性能
を高めることができ、優れた防水機能を有する電池パッ
クを得ることができた。また、射出成形を利用して内部
部品を被覆すると共に、防水部材用の平坦な面を形成し
たので、手作業によらずに性能の優れた電池パックを製
造することができた。According to the battery pack of the present invention, a predetermined portion of a built-in component is covered by injection molding of a thermoplastic synthetic resin, and at least a portion of the thermoplastic resin is formed around a connection terminal portion with an external circuit. After forming a layer and flattening it, a waterproofing member is arranged and heat-sealed by the upper housing and the lower housing. A battery pack having the following characteristics was obtained. In addition, since the internal parts were covered by injection molding and the flat surface for the waterproof member was formed, a battery pack having excellent performance could be manufactured without manual work.
【図１】図１は、本発明の防水機能を有する電池パック
の一実施例を説明する図である。FIG. 1 is a diagram illustrating an embodiment of a battery pack having a waterproof function according to the present invention.
【図２】図２は、内蔵部品の一実施例を説明する図であ
る。FIG. 2 is a diagram illustrating an embodiment of a built-in component.
【図３】図３は、熱可塑性樹脂による被覆された内蔵部
品を示す。FIG. 3 shows a built-in component coated with a thermoplastic resin.
【図４】図４は、射出成形によって熱可塑性樹脂層が形
成された内蔵部品を説明する図である。FIG. 4 is a diagram illustrating a built-in component on which a thermoplastic resin layer is formed by injection molding.
【図５】図５は、従来の防水機能を高めた電池パックの
内蔵部品の一例を説明する図である。FIG. 5 is a diagram illustrating an example of a built-in component of a conventional battery pack having an enhanced waterproof function.
１…電池パック、２…上部筐体、３…下蓋筐体、４…内
蔵部品、５…電池、６…充放電制御回路基板、７…電池
使用機器接続端子用基板、８…充電器接続端子用基板、
９…電池使用機器接続端子、１０…電池使用機器接続端
子防水部材、１１…充電器接続端子防水部材、１２…電
池使用機器接続端子用開口部、１３…充電器接続端子用
開口部、１４…充電器接続端子、１５…電池電極、１６
…ＰＴＣ素子、１７…熱可塑性樹脂層、１８…防水性テ
ープ、２０…合成樹脂製粘着テープ、２１，２２…防水
部材、２３…防水性合成樹脂層DESCRIPTION OF SYMBOLS 1 ... Battery pack, 2 ... Upper case, 3 ... Lower cover case, 4 ... Built-in components, 5 ... Battery, 6 ... Charge / discharge control circuit board, 7 ... Battery use equipment connection terminal board, 8 ... Charger connection Terminal board,
9: Battery-operated equipment connection terminal, 10: Battery-operated equipment connection terminal waterproof member, 11: Charger connection terminal waterproof member, 12: Battery-operated equipment connection terminal opening, 13: Charger connection terminal opening, 14 ... Charger connection terminal, 15 ... battery electrode, 16
... PTC element, 17 ... thermoplastic resin layer, 18 ... waterproof tape, 20 ... synthetic resin adhesive tape, 21, 22 ... waterproof member, 23 ... waterproof synthetic resin layer
Claims (2)
機器との接続端子部用の開口を有する電池パック外装
材、電池および充放電制御回路を有する回路基板からな
る内蔵部品からなり、内蔵部品は機器との接続端子部を
除く部分の少なくとも一部が熱可塑性樹脂層によって被
覆され、少なくとも一部の機器との接続端子の周囲は、
平坦な熱可塑性樹脂層上に防水部材を設けて電池パック
外装材と接触するとともに電池パック外装材の周囲は密
閉されていることを特徴とする防水機能を有する電池パ
ック。1. A battery pack having a waterproof function,
A battery pack exterior material having an opening for a connection terminal portion with a device, a built-in component including a battery and a circuit board having a charge / discharge control circuit, and the built-in component has at least a part of a portion excluding a connection terminal portion with the device. Covered by a thermoplastic resin layer, at least around the connection terminals with some devices,
A battery pack having a waterproof function, wherein a waterproof member is provided on a flat thermoplastic resin layer to make contact with a battery pack exterior material, and the periphery of the battery pack exterior material is sealed.
射出成形によって形成されたものであることを特徴とす
る請求項１記載の防水機能を有する電池パック。2. The battery pack having a waterproof function according to claim 1, wherein the thermoplastic resin layer formed on the built-in component is formed by injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001123088A JP4944307B2 (en) | 2001-04-20 | 2001-04-20 | Battery pack with waterproof function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001123088A JP4944307B2 (en) | 2001-04-20 | 2001-04-20 | Battery pack with waterproof function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002319382A true JP2002319382A (en) | 2002-10-31 |
| JP4944307B2 JP4944307B2 (en) | 2012-05-30 |
Family
ID=18972698
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001123088A Expired - Lifetime JP4944307B2 (en) | 2001-04-20 | 2001-04-20 | Battery pack with waterproof function |
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| Country | Link |
|---|---|
| JP (1) | JP4944307B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004179110A (en) * | 2002-11-29 | 2004-06-24 | Kyocera Corp | Structure of connecting part of connector and portable terminal device using the same |
| JP2008034263A (en) * | 2006-07-28 | 2008-02-14 | Sanyo Electric Co Ltd | Battery pack |
| JP2008091220A (en) * | 2006-10-02 | 2008-04-17 | Casio Hitachi Mobile Communications Co Ltd | Battery pack and electronic apparatus |
| WO2009069404A1 (en) * | 2007-11-30 | 2009-06-04 | Murata Manufacturing Co., Ltd. | Battery module and charging module |
| US7595130B2 (en) | 2003-11-06 | 2009-09-29 | Ube Industries, Ltd. | Battery separator and lithium secondary battery |
| KR100977433B1 (en) | 2003-08-29 | 2010-08-24 | 우베 고산 가부시키가이샤 | Battery separator and lithium secondary battery |
| JP2013055066A (en) * | 2012-11-14 | 2013-03-21 | Nec Casio Mobile Communications Ltd | Battery pack and electronic apparatus |
| WO2019088398A1 (en) * | 2017-10-31 | 2019-05-09 | 주식회사 엘지화학 | Secondary battery including injection molded battery case |
| CN114302791A (en) * | 2019-09-11 | 2022-04-08 | 鲁卡斯液压有限公司 | Portable working device for portable use |
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|---|---|---|---|---|
| JPH07320716A (en) * | 1994-05-25 | 1995-12-08 | Toshiba Battery Co Ltd | Combination battery |
| JPH11224653A (en) * | 1998-02-04 | 1999-08-17 | Toshiba Battery Co Ltd | Waterproof battery pack |
| JP2000114697A (en) * | 1998-09-29 | 2000-04-21 | Sanyo Electric Co Ltd | Mounting substrate and battery |
-
2001
- 2001-04-20 JP JP2001123088A patent/JP4944307B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07320716A (en) * | 1994-05-25 | 1995-12-08 | Toshiba Battery Co Ltd | Combination battery |
| JPH11224653A (en) * | 1998-02-04 | 1999-08-17 | Toshiba Battery Co Ltd | Waterproof battery pack |
| JP2000114697A (en) * | 1998-09-29 | 2000-04-21 | Sanyo Electric Co Ltd | Mounting substrate and battery |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004179110A (en) * | 2002-11-29 | 2004-06-24 | Kyocera Corp | Structure of connecting part of connector and portable terminal device using the same |
| KR100977433B1 (en) | 2003-08-29 | 2010-08-24 | 우베 고산 가부시키가이샤 | Battery separator and lithium secondary battery |
| US7595130B2 (en) | 2003-11-06 | 2009-09-29 | Ube Industries, Ltd. | Battery separator and lithium secondary battery |
| JP2008034263A (en) * | 2006-07-28 | 2008-02-14 | Sanyo Electric Co Ltd | Battery pack |
| JP2008091220A (en) * | 2006-10-02 | 2008-04-17 | Casio Hitachi Mobile Communications Co Ltd | Battery pack and electronic apparatus |
| WO2009069404A1 (en) * | 2007-11-30 | 2009-06-04 | Murata Manufacturing Co., Ltd. | Battery module and charging module |
| US8330416B2 (en) | 2007-11-30 | 2012-12-11 | Murata Manufacturing Co., Ltd | Battery module and charging module |
| JP2013055066A (en) * | 2012-11-14 | 2013-03-21 | Nec Casio Mobile Communications Ltd | Battery pack and electronic apparatus |
| WO2019088398A1 (en) * | 2017-10-31 | 2019-05-09 | 주식회사 엘지화학 | Secondary battery including injection molded battery case |
| CN114302791A (en) * | 2019-09-11 | 2022-04-08 | 鲁卡斯液压有限公司 | Portable working device for portable use |
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| Publication number | Publication date |
|---|---|
| JP4944307B2 (en) | 2012-05-30 |
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