JP2009252415A5 - - Google Patents

Claims (3)

筒型金属ケ−ス（１）と、この金属ケースの一端側にかしめ固定したリ−ド（２）および他端側に開口閉塞用絶縁ブッシング（９）を貫通し先端に固定接点（１１）を有するリ−ド（１０）を含む導出リード部材と、前記金属ケ−ス（１）に収容する感温ペレット（３）、ケース内壁面と接触する可動接点体（７）、この可動接点体に係留される圧縮ばね部材（６、８）、および圧縮ばね押圧力を感温ペレット（３）に伝達する金属押板（４、５）を具備し、前記金属押板（４，５）および前記感温ペレット（３）は、相互の接触当接部位に経時的変化を伴わない非変質材からなり、それにより前記導出リ−ド部材間を遮断する動作温度の経過時間的な変動をミニマム化したことを特徴とする感温ペレット型温度ヒュ−ズ。 A cylindrical metal case (1), a lead (2) caulked and fixed to one end side of the metal case, and an insulating bushing (9) for closing the opening to the other end side, and a fixed contact (11) at the tip Lead lead member including lead (10) having temperature, temperature-sensitive pellet (3) accommodated in metal case (1), movable contact body (7) in contact with the inner wall surface of the case, and this movable contact body Compression spring members (6, 8) moored to the metal plate, and metal pressing plates (4, 5) for transmitting the compression spring pressing force to the temperature sensitive pellet (3), the metal pressing plates (4, 5) and The temperature-sensitive pellet (3) is made of a non-modified material that does not change with time at the contact contact portion with each other, thereby minimizing the variation with time of the operating temperature that blocks the lead-out lead members. A temperature-sensitive pellet type temperature fuse, 前記感温ペレットは高温保管および／または高湿保管の環境負荷の耐久試験により変質を生じない熱可塑性樹脂材であり、かつ、前記金属押板は高温保管および／または高湿保管の環境負荷の耐久試験により前記感温ペレットとの当接面で変質を生じない所定の機械的強度を有するステンレス材であることを特徴とする請求項１に記載の感温ペレット型温度ヒュ−ズ。 The temperature-sensitive pellet is a thermoplastic resin material that does not change in quality due to an environmental load durability test of high-temperature storage and / or high-humidity storage, and the metal pressing plate has an environmental load of high-temperature storage and / or high-humidity storage. 2. The temperature-sensitive pellet type temperature fuse according to claim 1, wherein the temperature-sensitive pellet type temperature fuse is a stainless steel material having a predetermined mechanical strength that does not change in quality at the contact surface with the temperature-sensitive pellet in an endurance test . 前記環境負荷の高温保管による耐久試験は、所定の動作温度より略１０℃低くした５０００時間経過後の変化により選定し、また、前記環境負荷の高湿保管による耐久試験は、所定の動作温度が１００℃以下の場合は、温度６５℃、相対湿度９５％であり、１００℃を越える場合は温度８５℃、相対湿度９５％の設定条件下で５０００時間の経過後の変化により選定し、前記耐久試験の選定基準は、５０００時間経過後の動作温度の変動が５℃以内であることを特徴とする請求項１または請求項２に記載の感温ペレット型温度ヒュ−ズ。 The endurance test by high temperature storage of the environmental load is selected based on a change after lapse of 5000 hours, which is about 10 ° C. lower than the predetermined operation temperature. The endurance test by high humidity storage of the environmental load is performed by the predetermined operation temperature. When the temperature is 100 ° C. or lower, the temperature is 65 ° C. and the relative humidity is 95%. When the temperature exceeds 100 ° C., the temperature is set to 85 ° C. and the relative humidity is 95%. The temperature- sensitive pellet type temperature fuse according to claim 1 or 2, wherein the test selection criterion is that the fluctuation of the operating temperature after the lapse of 5000 hours is within 5 ° C.