JP2001266936A - Thermal battery - Google Patents

Thermal battery

Info

Publication number
JP2001266936A
JP2001266936A JP2000076931A JP2000076931A JP2001266936A JP 2001266936 A JP2001266936 A JP 2001266936A JP 2000076931 A JP2000076931 A JP 2000076931A JP 2000076931 A JP2000076931 A JP 2000076931A JP 2001266936 A JP2001266936 A JP 2001266936A
Authority
JP
Japan
Prior art keywords
ignition
thermal battery
lead wires
fiber material
resin composition
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
Application number
JP2000076931A
Other languages
Japanese (ja)
Other versions
JP3971883B2 (en
Inventor
Tomoya Watanabe
朋也 渡邉
Mitsuhiro Nakanishi
光弘 中西
Yasuhiro Nishimura
保廣 西村
Tetsuji Hayashi
哲次 林
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2000076931A priority Critical patent/JP3971883B2/en
Publication of JP2001266936A publication Critical patent/JP2001266936A/en
Application granted granted Critical
Publication of JP3971883B2 publication Critical patent/JP3971883B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Primary Cells (AREA)
  • Secondary Cells (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a thermal battery which is equipped with a spark plug of a high reliability at the point of strength and which ensures an ignition of a firing sheet even under severe conditions. SOLUTION: The thermal battery which is equipped with a power generation body laminated with alternate unit batteries and exothermic agents, a firing sheet to ignite the exothermic agents, and, in the vicinity of the firing sheet, a sparking plug connected to a piezoelectric element with a pair of lead wires. The sparking plug is composed of a retainer which retains the ends of lead wires opposing with each other and an igniting agent which covers ends of the lead wires. The surface of the igniting agent is integrally coated with the resin composition containing fiber materials integrally with the retainer.

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、点火栓を具備する
熱電池に関し、さらに詳しくは前記点火栓の構造に関す
る。
The present invention relates to a thermal battery having an ignition plug, and more particularly, to a structure of the ignition plug.

【0002】[0002]

【従来の技術】熱電池は、常温では不活性であるが、高
温では活性となって外部への電力供給が可能となる貯蔵
型電池の一種である。熱電池の貯蔵安定性は極めて良好
であり、5〜10年の貯蔵後でも製造直後と同様の特性
を保持する。また、熱電池は、高温で作動させるため、
電極反応が進みやすく、高出力であり、ミサイル等の防
衛機器や誘導機器用電源、緊急用電源等として用いられ
る。
2. Description of the Related Art A thermal battery is a type of storage battery which is inactive at room temperature but activated at a high temperature to supply electric power to the outside. The storage stability of the thermal battery is extremely good, and retains the same characteristics as immediately after production even after storage for 5 to 10 years. In addition, thermal batteries operate at high temperatures,
The electrode reaction is easy to proceed and has a high output, and is used as a power supply for defense equipment such as missiles, guidance equipment, an emergency power supply, and the like.

【0003】熱電池の点火装置には、従来、電気式点火
玉、撃発式雷管等が採用されており、各種飛翔体に用い
られている。しかし、電気式点火玉、撃発式雷管等を用
いた熱電池は、法規上、限られた認定業者しか取扱えな
い点で不便である。一方、特公昭48−1457号公報
や特公昭64−45063号公報では、圧電素子を用い
た点火装置が検討されている。
[0003] Conventionally, an electric ignition ball, a firing type detonator, and the like have been adopted as an ignition device for a thermal battery, and are used for various flying objects. However, a thermal battery using an electric ignition ball, a firing type detonator, or the like is inconvenient in that only a limited number of authorized traders can handle it according to laws and regulations. On the other hand, Japanese Patent Publication Nos. 48-1457 and 64-45063 discuss an ignition device using a piezoelectric element.

【0004】図1に、従来の圧電素子を用いた点火装置
を具備する熱電池の構造を示す。ただし、点火装置を除
く本体部分は断面で示してある。素電池1および素電池
1を加熱して活性化させる発熱剤2は、交互に積層され
て発電体3を構成している。発熱剤2は、発電体3の外
面に沿って備えられた着火シート4と接続されている。
また、着火シート4は点火栓5と近接しており、点火栓
5は一対のリード線6で点火装置7に接続されている。
発電体3は、セラミックファイバーの断熱材8で覆われ
た状態で断熱ケース18に収納されている。断熱ケース
18の開口部は、発電体3の正極リード(または負極リ
ード)9および負極リード(または正極リード)10な
らびに一対のリード線6の通過孔11を有する蓋部12
で封口されている。各通過孔11には、ハーメチックシ
ールが施されている。点火装置7は圧電素子13を具備
する。圧電素子13に衝撃等を加えると、点火栓5に高
電圧が付与されて点火栓5が発火し、着火シート4に着
火する。そして、着火シート4の燃焼がさらに発熱剤2
へと伝播してゆく。
FIG. 1 shows a structure of a thermal battery provided with a conventional ignition device using a piezoelectric element. However, the main body except for the ignition device is shown in cross section. The unit cells 1 and the heating agent 2 for heating and activating the unit cells 1 are alternately stacked to form a power generator 3. The exothermic agent 2 is connected to an ignition sheet 4 provided along the outer surface of the power generator 3.
The ignition sheet 4 is close to the ignition plug 5, and the ignition plug 5 is connected to an ignition device 7 by a pair of lead wires 6.
The power generator 3 is housed in a heat insulating case 18 while being covered with a heat insulating material 8 made of ceramic fiber. The opening of the heat-insulating case 18 includes a lid 12 having a positive electrode lead (or negative electrode lead) 9 and a negative electrode lead (or positive electrode lead) 10 of the power generator 3 and a through hole 11 for a pair of lead wires 6.
It is sealed with. Each passage hole 11 is provided with a hermetic seal. The ignition device 7 includes a piezoelectric element 13. When an impact or the like is applied to the piezoelectric element 13, a high voltage is applied to the ignition plug 5, the ignition plug 5 is ignited, and the ignition sheet 4 is ignited. Then, the combustion of the ignition sheet 4 further increases the exothermic agent 2
Propagating to

【0005】次に、図2に、点火栓5の一例の断面拡大
図を示す。点火栓5は、一対のリード線6の端部14を
対向させて保持する保持体15と、保持体15の表面の
一部およびリード線端部14を覆うように塗布または成
形された点火剤16からなっている。ここで、点火剤1
6の表面は強度が弱く、点火剤が脱落したり剥がれたり
して、熱電池起動時に着火シートに着火せず、熱電池が
作動しなくなることがある。そこで、熱電池の点火栓の
信頼性を高めるために、樹脂17が点火剤表面に保持体
15と一体にコーティングされている。
Next, FIG. 2 shows an enlarged cross-sectional view of an example of the ignition plug 5. The ignition plug 5 includes a holder 15 for holding the ends 14 of the pair of lead wires 6 facing each other, and an ignition agent applied or molded so as to cover a part of the surface of the holder 15 and the end 14 of the lead wires. It consists of 16. Here, ignition agent 1
The surface of No. 6 has low strength, and the igniting agent may fall off or peel off, and the ignition sheet may not be ignited when the thermal battery is started, and the thermal battery may not operate. Therefore, in order to increase the reliability of the ignition plug of the thermal battery, the resin 17 is coated on the surface of the ignition agent integrally with the holder 15.

【0006】[0006]

【発明が解決しようとする課題】しかし、熱電池を各種
飛翔体に適用する場合、要求される性能は著しく高い。
すなわち苛酷な条件下、例えば数千〜数十万m/s2
高衝撃、数千〜数万rpmの高旋回の条件下における点
火栓の信頼性を一層向上させることが望まれている。一
方、点火栓の強度を向上させることができたとしても、
点火栓から着火シートへの着火が阻害されてはならな
い。すなわち、強度と着火性とのバランスに、充分に配
慮する必要がある。例えば、点火剤に樹脂を練り込んで
点火栓の強度向上を図る方法もあるが、これでは着火性
が低下してしまう。
However, when a thermal battery is applied to various flying objects, the required performance is extremely high.
That is, it is desired to further improve the reliability of the spark plug under severe conditions, for example, high impact of several thousand to several hundred thousand m / s 2 and high turning of several thousand to several hundred thousand rpm. On the other hand, even if the strength of the spark plug could be improved,
Ignition from the spark plug to the ignition sheet must not be inhibited. That is, it is necessary to give sufficient consideration to the balance between strength and ignitability. For example, there is a method of improving the strength of the spark plug by kneading a resin into the igniting agent, but this reduces ignitability.

【0007】[0007]

【課題を解決するための手段】本発明は、強度の点で信
頼性の高い点火栓を有し、かつ、着火シートへの着火が
過酷な条件下でも確実に行われる熱電池を提供するため
になされたものである。
SUMMARY OF THE INVENTION The present invention is to provide a thermal battery having a reliable ignition plug in terms of strength and ensuring that ignition to an ignition sheet is performed even under severe conditions. It was done in.

【0008】すなわち、本発明は、素電池と発熱剤とを
交互に積層した発電体、前記発熱剤に着火するための着
火シート、ならびに前記着火シートに近接し、かつ、一
対のリード線により圧電素子に接続された点火栓を具備
した熱電池であって、前記点火栓が、リード線端部を対
向させて保持する保持体および前記リード線端部を覆う
点火剤からなり、前記点火剤の表面が前記保持体と一体
に繊維材料を含有する樹脂組成物により被覆されている
ことを特徴とする熱電池に関する。
That is, the present invention provides a power generator in which unit cells and exothermic agents are alternately stacked, an ignition sheet for igniting the exothermic agent, and a piezoelectric element close to the ignition sheet and provided with a pair of lead wires. A thermal battery comprising an ignition plug connected to an element, wherein the ignition plug comprises a holder for holding a lead wire end facing each other and an ignition agent for covering the lead wire end, and The present invention relates to a thermal battery whose surface is covered with a resin composition containing a fiber material integrally with the holder.

【0009】前記樹脂組成物の樹脂成分と繊維材料との
合計量に対する繊維材料の含有量は、5〜80重量%で
あることが好ましい。また、繊維材料としては、ガラス
繊維またはセラミック繊維を用いることが好ましい。さ
らに、樹脂成分としては、ポリ酢酸ビニルを用いること
が好ましい。
[0009] The content of the fiber material relative to the total amount of the resin component and the fiber material of the resin composition is preferably 5 to 80% by weight. Further, it is preferable to use glass fiber or ceramic fiber as the fiber material. Further, it is preferable to use polyvinyl acetate as the resin component.

【0010】[0010]

【発明の実施の形態】本発明の熱電池は、素電池と発熱
剤とを交互に積層した発電体、前記発熱剤に着火するた
めの着火シート、ならびに前記着火シートに近接し、か
つ、一対のリード線により圧電素子に接続された点火栓
を具備する。
BEST MODE FOR CARRYING OUT THE INVENTION A thermal battery according to the present invention comprises a power generator in which unit cells and a heating agent are alternately stacked, an ignition sheet for igniting the heating agent, and a pair of ignition sheets close to the ignition sheet. And an ignition plug connected to the piezoelectric element by the lead wire.

【0011】前記素電池は、リチウム、カルシウム等か
らなる負極層と、塩化リチウム−塩化カリウム共融混合
塩等からなる電解質層と、二硫化鉄、クロム酸カルシウ
ム等を主成分とする正極層とからなる。素電池を加熱し
て活性化させる前記発熱剤は、金属粉末と酸化剤とから
なる。例えば、鉄粉と過塩素酸カリウムとを混合した発
熱剤が用いられる。前記着火シートは、金属粉末と酸化
剤とからなる。前記金属粉末としては、例えばジルコニ
ウム粉が挙げられ、前記酸化剤としては、例えばクロム
酸バリウムが挙げられる。前記圧電素子は点火装置に設
置されている。衝撃等が圧電素子に与えられると、高電
圧が点火栓に印加される。このとき放電により発生する
火花が、着火シートを着火させるのに利用される。
The unit cell comprises a negative electrode layer made of lithium, calcium, etc., an electrolyte layer made of lithium chloride-potassium chloride eutectic mixed salt, etc., and a positive electrode layer mainly made of iron disulfide, calcium chromate, etc. Consists of The exothermic agent that heats and activates the unit cell includes a metal powder and an oxidizing agent. For example, a heating agent in which iron powder and potassium perchlorate are mixed is used. The ignition sheet includes a metal powder and an oxidizing agent. Examples of the metal powder include zirconium powder, and examples of the oxidizing agent include barium chromate. The piezoelectric element is provided in an ignition device. When an impact or the like is given to the piezoelectric element, a high voltage is applied to the spark plug. The spark generated by the discharge at this time is used to ignite the ignition sheet.

【0012】前記点火栓は、リード線端部を対向させて
保持する保持体および前記リード線端部を覆う点火剤か
らなっている。前記点火剤は、金属粉末と酸化剤とから
なる。ここでは、例えばジルコニウム粉と、クロム酸バ
リウムと、無機短繊維とを混合した点火剤などが用いら
れる。
The ignition plug comprises a holder for holding the ends of the lead wires facing each other and an igniter for covering the ends of the lead wires. The igniter comprises a metal powder and an oxidizer. Here, for example, an igniter prepared by mixing zirconium powder, barium chromate, and inorganic short fibers is used.

【0013】前記点火剤の表面は、前記保持体と一体に
繊維材料を含有する樹脂組成物により被覆されている。
前記樹脂組成物の樹脂成分と繊維材料との合計量に対す
る繊維材料の含有量は、5〜80重量%、さらには10
〜80重量%、特には20〜40重量%であることが好
ましい。繊維材料の含有量が5重量%未満になると、樹
脂組成物の強度が不足し、冷熱温度衝撃試験、温度−湿
度サイクル試験等でも充分な結果が得られない。一方、
含有量が80重量%を超えると、点火剤の燃焼や着火シ
ートへの着火が妨げられるおそれがある。
[0013] The surface of the igniter is coated with a resin composition containing a fiber material integrally with the holder.
The content of the fiber material with respect to the total amount of the resin component and the fiber material of the resin composition is 5 to 80% by weight, and furthermore 10
It is preferably from 80 to 80% by weight, particularly preferably from 20 to 40% by weight. When the content of the fiber material is less than 5% by weight, the strength of the resin composition is insufficient, and sufficient results cannot be obtained even in a thermal shock test, a temperature-humidity cycle test and the like. on the other hand,
If the content exceeds 80% by weight, combustion of the igniting agent and ignition of the ignition sheet may be hindered.

【0014】前記繊維材料としては、ガラス繊維、セラ
ミック繊維等の無機繊維を用いることが好ましい。これ
らは単独で用いてもよく、2種以上を組み合わせて用い
てもよい。これらのうちでは、高温・高湿下でも安定で
あり、耐薬品性に優れる等の点から、特にシリカ(Si
2)およびアルミナ(Al23)を主成分とするセラ
ミック繊維が好ましい。また、繊維長は、0.1〜3.
0mmであることが好ましい。繊維長が0.1mm未満
では、繊維同士のからみ合い(結合力)が弱く、強度が
不充分となるおそれがあり、3.0mmを超えると、点
火栓の表面がけば立ったり、繊維が折れたりしやすくな
る。
It is preferable to use inorganic fibers such as glass fibers and ceramic fibers as the fiber material. These may be used alone or in combination of two or more. Among these, silica (Si) is particularly preferable because it is stable even under high temperature and high humidity and has excellent chemical resistance.
Ceramic fibers containing O 2 ) and alumina (Al 2 O 3 ) as main components are preferred. Further, the fiber length is 0.1-3.
It is preferably 0 mm. If the fiber length is less than 0.1 mm, the entanglement (coupling force) between the fibers is weak, and the strength may be insufficient. If the fiber length is more than 3.0 mm, the surface of the spark plug becomes sticky or the fiber is broken. It becomes easier.

【0015】樹脂成分としては、ポリ酢酸ビニル、ポリ
酢酸セルロース、ポリ塩化ビニル、塩化ビニル−酢酸ビ
ニル共重合体等の熱可塑性樹脂が好ましく用いられる。
これらは単独で用いてもよく、2種以上を組み合わせて
用いてもよい。これらのうちでは、水溶性である点や、
20℃付近での粘性が最適で取り扱いやすいという点か
ら、特にポリ酢酸ビニルが好ましい。
As the resin component, thermoplastic resins such as polyvinyl acetate, polyvinyl acetate, polyvinyl chloride, and vinyl chloride-vinyl acetate copolymer are preferably used.
These may be used alone or in combination of two or more. Of these, it is water-soluble,
Polyvinyl acetate is particularly preferred because viscosity at around 20 ° C. is optimal and easy to handle.

【0016】点火剤の表面を保持体と一体に樹脂組成物
により被覆する際には、例えば樹脂成分を溶媒に溶解さ
せ、これに繊維材料を混合したものに、被覆前の点火栓
を浸漬してから引き上げればよい。樹脂成分を溶媒に溶
解させる際の樹脂濃度は10〜50重量%であること
が、作業性等の点から好ましい。引き上げた後、50〜
80℃で8〜15時間乾燥させれば、樹脂組成物を固化
させることができる。
When the surface of the igniting agent is coated with the resin composition integrally with the holder, for example, the resin plug is dissolved in a solvent, and a fibrous material is mixed with the igniter. Then pull it up. The resin concentration when the resin component is dissolved in the solvent is preferably 10 to 50% by weight from the viewpoint of workability and the like. After raising, 50 ~
Drying at 80 ° C. for 8 to 15 hours can solidify the resin composition.

【0017】なお、熱硬化性の樹脂を使用すると、コー
ティング乾燥後、樹脂が硬化するため、高衝撃時にかえ
って樹脂が破壊されやすくなることがある。また、点火
の際に火花が飛散しにくくなることがある。
When a thermosetting resin is used, the resin is hardened after the coating is dried, so that the resin may be easily broken at the time of high impact. In addition, sparks may not be easily scattered during ignition.

【0018】前記溶媒としては、水、酢酸メチル、エタ
ノールなどが挙げられる。これらは単独で用いてもよ
く、2種以上を組み合わせて用いてもよい。これらのう
ちでは、取り扱い易さ、環境への配慮等の点から、特に
水が好ましい。
Examples of the solvent include water, methyl acetate, ethanol and the like. These may be used alone or in combination of two or more. Of these, water is particularly preferred from the viewpoint of ease of handling, consideration for the environment, and the like.

【0019】塗布する前の樹脂組成物の好ましい態様と
しては、例えば濃度10〜50重量%のポリ酢酸ビニル
水溶液100重量部に、無機繊維2.5〜20重量部を
混合したもの、濃度10〜50重量%となるようにポリ
酢酸セルロースを酢酸メチルに溶かした溶液100重量
部に、無機繊維2.5〜20重量部を混合したもの等が
挙げられる。
A preferred embodiment of the resin composition before application is, for example, a mixture of 100 parts by weight of an aqueous solution of polyvinyl acetate having a concentration of 10 to 50% by weight and 2.5 to 20 parts by weight of inorganic fibers. A mixture obtained by mixing 2.5 to 20 parts by weight of an inorganic fiber with 100 parts by weight of a solution in which cellulose acetate is dissolved in methyl acetate so as to be 50% by weight is exemplified.

【0020】[0020]

【実施例】次に、実施例に基づき、本発明の熱電池につ
いて、さらに具体的に説明する。
Next, the thermal battery of the present invention will be described more specifically based on examples.

【0021】《実施例1》ここでは、図3に示すような
点火栓を用いた他は、図1に示したのと同様の熱電池を
製造した。図3は、点火栓の断面拡大図であり、点火剤
の表面が保持体と一体に繊維材料を含有する樹脂組成物
17’により被覆されている点以外は、図2と同様であ
る。
Example 1 A thermal battery similar to that shown in FIG. 1 was manufactured except that an ignition plug as shown in FIG. 3 was used. FIG. 3 is an enlarged cross-sectional view of the ignition plug, and is the same as FIG. 2 except that the surface of the igniter is covered with a resin composition 17 ′ containing a fiber material integrally with the holder.

【0022】樹脂組成物17’は、ポリ酢酸ビニルおよ
びシリカとアルミナを主成分とする繊維長0.1〜3m
mのセラミック繊維材料からなっている。ここでは、樹
脂成分と繊維材料との合計量に対する繊維材料の含有量
を5重量%とした。点火栓を樹脂組成物17’で被覆す
る際は、ポリ酢酸ビニルを25重量%含有する水溶液
と、前記繊維材料との混合物に、被覆前の点火栓を浸漬
した。その後、点火栓を引き上げ、50℃で12時間乾
燥させた。
The resin composition 17 'has a fiber length of 0.1 to 3 m mainly composed of polyvinyl acetate, silica and alumina.
m of ceramic fiber material. Here, the content of the fiber material relative to the total amount of the resin component and the fiber material was 5% by weight. When coating the spark plug with the resin composition 17 ′, the spark plug before coating was immersed in a mixture of an aqueous solution containing 25% by weight of polyvinyl acetate and the fiber material. Thereafter, the spark plug was pulled up and dried at 50 ° C. for 12 hours.

【0023】同様の熱電池を100個作製し、得られた
熱電池を衝撃試験に供した。衝撃試験では、88200
m/s2(9000G)または137200m/s2(1
4000G)の落下衝撃が点火栓に付与されるように曲
率半径を調整した受撃片に熱電池を落下させた。落下さ
せた100個の熱電池のうち、点火剤の脱落またはコー
ティングの破壊もしくはひび割れが生じたものの個数を
調べた。結果を表1に示す。
One hundred thermal batteries were prepared and subjected to an impact test. In the impact test, 88200
m / s 2 (9000 G) or 137200 m / s 2 (1
The thermal battery was dropped on the receiving piece whose radius of curvature was adjusted so that a drop impact of 4000 G) was applied to the spark plug. Of the 100 dropped thermal batteries, the number of those in which the igniting agent was dropped or the coating was destroyed or cracked was examined. Table 1 shows the results.

【0024】[0024]

【表1】 [Table 1]

【0025】《実施例2〜5》樹脂組成物17’におけ
る樹脂成分と繊維材料との合計量に対する繊維材料の含
有量を、表1に示した量にかえて、実施例1と同様の操
作を行った。結果を表1に示す。
<< Examples 2-5 >> The same operation as in Example 1 was carried out except that the content of the fiber material relative to the total amount of the resin component and the fiber material in the resin composition 17 'was changed to the amount shown in Table 1. Was done. Table 1 shows the results.

【0026】《比較例1》繊維材料を用いずに、ポリ酢
酸ビニルだけを用いて、実施例1と同様の操作を行っ
た。結果を表1に示す。
Comparative Example 1 The same operation as in Example 1 was performed using only polyvinyl acetate without using any fiber material. Table 1 shows the results.

【0027】表1の結果から、繊維材料を5重量%、さ
らには10重量%以上含有させると、コーティングの強
度、すなわち点火剤の保持力が向上することがわかる。
一方、繊維材料をコーティングに95重量%含有させた
場合、着火シートへの着火性が低下した。したがって、
繊維材料の含有量は5〜80重量%、さらには10〜8
0重量%程度が適当であることがわかる。
From the results shown in Table 1, it can be seen that when the fiber material is contained in an amount of 5% by weight, more preferably 10% by weight or more, the strength of the coating, that is, the holding power of the igniter is improved.
On the other hand, when the fiber material contained 95% by weight in the coating, the ignitability of the ignition sheet was reduced. Therefore,
The content of the fiber material is 5 to 80% by weight, more preferably 10 to 8%.
It is understood that about 0% by weight is appropriate.

【0028】[0028]

【発明の効果】本発明によれば、強度の点で信頼性が高
い点火栓を有し、かつ、着火シートへの着火が過酷な条
件下でも確実に行われる熱電池を提供できる。
According to the present invention, it is possible to provide a thermal battery which has an ignition plug which is highly reliable in terms of strength and which can reliably ignite the ignition sheet even under severe conditions.

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

【図1】本体部分を断面で示した熱電池の構造図であ
る。
FIG. 1 is a structural view of a thermal battery in which a main body is shown in a cross section.

【図2】従来の熱電池の点火栓の一例の断面拡大図であ
る。
FIG. 2 is an enlarged cross-sectional view of an example of a conventional ignition plug of a thermal battery.

【図3】本発明の熱電池の点火栓の一例の断面拡大図で
ある。
FIG. 3 is an enlarged sectional view of an example of an ignition plug of the thermal battery of the present invention.

【符号の説明】[Explanation of symbols]

1 素電池 2 発熱剤 3 発電体 4 着火シート 5 点火栓 6 リード線 7 点火装置 8 断熱材 9 正極リード(負極リード) 10 負極リード(正極リード) 11 通過孔 12 蓋部 13 圧電素子 14 リード線端部 15 保持体 16 点火剤 17 樹脂 17’樹脂組成物 18 断熱ケース DESCRIPTION OF SYMBOLS 1 Unit cell 2 Heating agent 3 Power generator 4 Ignition sheet 5 Ignition plug 6 Lead wire 7 Ignition device 8 Insulation material 9 Positive electrode lead (negative electrode lead) 10 Negative electrode lead (positive electrode lead) 11 Passing hole 12 Lid 13 Piezoelectric element 14 Lead wire End 15 Holder 16 Ignition agent 17 Resin 17 'Resin composition 18 Heat insulation case

───────────────────────────────────────────────────── フロントページの続き (72)発明者 西村 保廣 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 林 哲次 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 Fターム(参考) 5H029 AJ00 AK05 AL12 AM09 BJ04 BJ06 BJ12 EJ06 EJ08 EJ12 HJ01  ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Yasuhiro Nishimura 1006 Kazuma Kadoma, Osaka Pref.Matsushita Electric Industrial Co., Ltd. F term (reference) 5H029 AJ00 AK05 AL12 AM09 BJ04 BJ06 BJ12 EJ06 EJ08 EJ12 HJ01

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 素電池と発熱剤とを交互に積層した発電
体、前記発熱剤に着火するための着火シート、ならびに
前記着火シートに近接し、かつ、一対のリード線により
圧電素子に接続された点火栓を具備した熱電池であっ
て、前記点火栓が、リード線端部を対向させて保持する
保持体および前記リード線端部を覆う点火剤からなり、
前記点火剤の表面が前記保持体と一体に繊維材料を含有
する樹脂組成物により被覆されていることを特徴とする
熱電池。
1. A power generator in which a unit cell and a heating agent are alternately laminated, an ignition sheet for igniting the heating agent, and an ignition sheet proximate to the ignition sheet and connected to the piezoelectric element by a pair of lead wires. A thermal battery provided with an ignition plug, wherein the ignition plug comprises a holder for holding the ends of the lead wires facing each other and an igniter covering the ends of the lead wires,
A thermal battery, wherein a surface of the igniter is coated with a resin composition containing a fiber material integrally with the holder.
【請求項2】 樹脂組成物の樹脂成分と繊維材料との合
計量に対する繊維材料の含有量が5〜80重量%である
請求項1記載の熱電池。
2. The thermal battery according to claim 1, wherein the content of the fiber material is 5 to 80% by weight based on the total amount of the resin component and the fiber material of the resin composition.
【請求項3】 繊維材料が、ガラス繊維またはセラミッ
ク繊維である請求項1または2記載の熱電池。
3. The thermal battery according to claim 1, wherein the fiber material is glass fiber or ceramic fiber.
【請求項4】 樹脂組成物の樹脂成分が、ポリ酢酸ビニ
ルからなる請求項1〜3のいずれかに記載の熱電池。
4. The thermal battery according to claim 1, wherein the resin component of the resin composition comprises polyvinyl acetate.
JP2000076931A 2000-03-17 2000-03-17 Thermal battery Expired - Lifetime JP3971883B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000076931A JP3971883B2 (en) 2000-03-17 2000-03-17 Thermal battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000076931A JP3971883B2 (en) 2000-03-17 2000-03-17 Thermal battery

Publications (2)

Publication Number Publication Date
JP2001266936A true JP2001266936A (en) 2001-09-28
JP3971883B2 JP3971883B2 (en) 2007-09-05

Family

ID=18594588

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000076931A Expired - Lifetime JP3971883B2 (en) 2000-03-17 2000-03-17 Thermal battery

Country Status (1)

Country Link
JP (1) JP3971883B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108344833A (en) * 2018-04-11 2018-07-31 重庆师范大学 Thermal cell heating plate automatic measurement burn rate device and its detection method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108344833A (en) * 2018-04-11 2018-07-31 重庆师范大学 Thermal cell heating plate automatic measurement burn rate device and its detection method

Also Published As

Publication number Publication date
JP3971883B2 (en) 2007-09-05

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