ELECTRIC HEATING MAT
To provide an electric surface heater in which energy is saved in comparison with a full-area heater and local heat generation functions without any external electronic control or regulation.SOLUTION: An electric surface heater comprises an electrically-conductive plastic body 1, and an upper electr...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To provide an electric surface heater in which energy is saved in comparison with a full-area heater and local heat generation functions without any external electronic control or regulation.SOLUTION: An electric surface heater comprises an electrically-conductive plastic body 1, and an upper electrode 2 and a lower electrode 3 to which an electric voltage is applied. At least one of the two electrodes is flexible. Between the upper electrode and the plastic body and/or between the lower electrode and the plastic body, a plurality of thin spacers 4 of very limited dimensions are attached at predetermined distances from one another, so that no current flows in an unloaded state. When a load is applied, the flexible electrode sags, and a material-bonded contact to the electrically-conductive plastic body develops, thereby realizing a local flow of current and heating.SELECTED DRAWING: Figure 1
【課題】全領域ヒータと比較してエネルギーが節約され、局所的な発熱が、外部の電子制御や調整なしで機能する電気表面ヒータを提供する。【解決手段】導電性プラスチック本体1と、電圧が印加される上部電極2及び下部電極3とを備えた電気表面ヒータであって、前記2つの電極のうちの少なくとも1つは可撓性を有し、前記上部電極と前記プラスチック本体との間及び/又は前記下部電極と前記プラスチック本体との間に、ごく限られた寸法の複数の小さなスペーサ4が、無荷重状態において電流が流れないように、互いから所定の距離で取り付けられており、荷重を受けると、可撓性を有する前記電極が撓むとともに、前記導電性プラスチック本体への材料結合接触が進み、これにより電流の局所的な流れ及び加熱が実現される。【選択図】図1 |
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