CN100496169C - Six-layered structure all-ceramic electric heater - Google Patents

Six-layered structure all-ceramic electric heater Download PDF

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Publication number
CN100496169C
CN100496169C CNB2006100204235A CN200610020423A CN100496169C CN 100496169 C CN100496169 C CN 100496169C CN B2006100204235 A CNB2006100204235 A CN B2006100204235A CN 200610020423 A CN200610020423 A CN 200610020423A CN 100496169 C CN100496169 C CN 100496169C
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China
Prior art keywords
layer
hypomere
resistance layer
epimere
conducting layer
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CNB2006100204235A
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Chinese (zh)
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CN101031168A (en
Inventor
雷彼得
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Chongqing Limai Technology Co ltd
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Individual
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Abstract

The invention comprises an internal conducting layer, an internal resistance layer, an internal insulation layer, an external resistance layer, and an external conducting layer and an external insulation layer. The internal conducting layer sits in the center of the electric heating element; the internal resistance layer covers the internal conducting layer; the internal insulation layer covers the internal resistance layer; the external resistance layer covers the internal insulation layer; there is a through hole on the top of the internal insulation layer; the internal resistance layer is connected to the internal resistance layer by using the trough hole; the external conducting layer covers lower portion of the external resistance layer; the external insulation layer covers the external conducting layer; the material of each layer is made of ceramic material capable of containing silicon nitride and molybdenum disilicide.

Description

Ceramic six-layered electric heater
Technical field
Belonging to the pottery is the electric heating element technical field of feature.
Background technology
Prior art ceramic electrically-heated body, advantage are the heating-up temperature height; Its weak point is outer conductive layer unprotect layer, and shock resistance is poor, and the distance between bottom outer conducting layer and inner conducting layer is little, and mistake is communicated with easily, and manufacturing procedure is more.
Summary of the invention
Technical problem to be solved provides a kind of strong ceramic six-layered electric heater of shock resistance that external insulation layer is arranged.
The technical scheme that solves its technical problem is as follows: ceramic six-layered electric heater comprises inner conducting layer, internal resistance layer, inner insulating layer, dispatch from foreign news agency resistance layer, outer conducting layer, external insulation layer and contre electrode jack; Inner conducting layer is positioned at the central authorities of electric heating element, and the contre electrode jack is positioned at the central authorities of inner conducting layer bottom; Internal resistance layer is divided into two sections, and the diameter of hypomere is greater than the diameter of epimere, and the hypomere of internal resistance layer is wrapped in outside the inner conducting layer; Inner insulating layer is divided into three sections, and the stage casing diameter is greater than the epimere diameter, and the hypomere diameter is greater than the stage casing diameter, and epimere is wrapped in outside the internal resistance layer epimere, and stage casing and hypomere are wrapped in outside the internal resistance layer hypomere; The dispatch from foreign news agency resistance layer is divided into two sections, and epimere is wrapped in outside the epimere of inner insulating layer, and hypomere is wrapped in outside the inner insulating layer stage casing, and the diameter of hypomere is less than the diameter of inner insulating layer hypomere; There is intercommunicating pore on top at the inner insulating layer epimere, and the part material of dispatch from foreign news agency resistance layer is communicated with at the intercommunicating pore place with the part material of internal resistance layer; Outer conducting layer wraps in outside the hypomere of dispatch from foreign news agency resistance layer, and outer conducting layer is divided into two sections, and the diameter of hypomere equals the diameter of the hypomere of inner insulating layer, and the diameter of epimere is less than the diameter of hypomere, and hypomere is other electrode junction; External insulation layer wraps in outside the epimere of outer conducting layer;
Inner conducting layer, internal resistance layer, inner insulating layer, dispatch from foreign news agency resistance layer, outer conducting layer and external insulation layer are made by ceramic material, can adopt the ceramic material of silicon nitride comprising and molybdenum disilicide; Wherein the weight percent content of the silicon nitride of inner conducting layer and outer conducting layer is that the weight percent content of 20-60%, molybdenum disilicide is 40-80%, the weight percent content of the silicon nitride of internal resistance layer and dispatch from foreign news agency resistance layer is that the weight percent content of 60-70%, molybdenum disilicide is 30-40%, and the weight percent content of the silicon nitride of inner insulating layer and external insulation layer is that the weight percent content of 70-100%, molybdenum disilicide is 0-30%.
Beneficial effect: be applied to heating and igniter.Beneficial effect is that the heating speed of ignition is fast, temperature is high, can reach more than 1200 degree, and shock strength is big, the inner conducting layer of its tail end and internal resistance layer can be illogical with outer conducting layer and dispatch from foreign news agency resistance layer mistake, short circuit can not take place, the completion of processing tail end need not cut, and can reduce production process.
Description of drawings
Fig. 1 is a structure chart.Among Fig. 1,1 is inner conducting layer, and 2 is internal resistance layer, and 3 is inner insulating layer, and 4 is the dispatch from foreign news agency resistance layer, and 5 is outer conducting layer, and 6 is external insulation layer, and 7 is intercommunicating pore, and 8 is the contre electrode jack, and 9 is other electrode junction.
Embodiment
Embodiment is as follows: inner conducting layer 1 is positioned at the central authorities of electric heating element, and contre electrode jack 8 is positioned at the central authorities of inner conducting layer 1; Internal resistance layer 2 is divided into two sections, and the diameter of hypomere is greater than the diameter of epimere, and the hypomere of internal resistance layer 2 is wrapped in outside the inner conducting layer 1; Inner insulating layer 3 is divided into three sections, and the stage casing diameter is greater than the epimere diameter, and the hypomere diameter is greater than the stage casing diameter, and epimere is wrapped in outside internal resistance layer 2 epimeres, and stage casing and hypomere are wrapped in outside internal resistance layer 2 hypomeres; Dispatch from foreign news agency resistance layer 4 is divided into two sections, and epimere is wrapped in outside the epimere of inner insulating layer 3, and hypomere is wrapped in outside inner insulating layer 3 stage casings, and the diameter of hypomere is less than the diameter of inner insulating layer 3 hypomeres; There is intercommunicating pore 7 on epimere top at inner insulating layer 3, and the part material of dispatch from foreign news agency resistance layer 4 is communicated with at intercommunicating pore 7 places with the part material of internal resistance layer 2; Outer conducting layer 5 wraps in outside the hypomere of dispatch from foreign news agency resistance layer 4, and outer conducting layer 5 is divided into two sections, and the diameter of hypomere equals the diameter of the hypomere of inner insulating layer 3, and the diameter of epimere is less than the diameter of hypomere, and hypomere is other electrode junction 9; External insulation layer 6 wraps in outside the epimere of outer conducting layer 5.Inner conducting layer 1, internal resistance layer 2, inner insulating layer 3, dispatch from foreign news agency resistance layer 4, outer conducting layer 5 and external insulation layer 6 are made by the ceramic material of silicon nitride comprising and molybdenum disilicide; Wherein the weight percent content of the silicon nitride of inner conducting layer 1 and outer conducting layer 4 is 40%, the weight percent content of molybdenum disilicide is 60%, the weight percent content of the silicon nitride of internal resistance layer and dispatch from foreign news agency resistance layer is 65%, the weight percent content of molybdenum disilicide is 35%, and the weight percent content of the silicon nitride of inner insulating layer and external insulation layer is 90%, the weight percent content of molybdenum disilicide is 10%.

Claims (2)

1, ceramic six-layered electric heater comprises inner conducting layer (1), internal resistance layer (2), inner insulating layer (3) and contre electrode jack (8), it is characterized in that also comprising dispatch from foreign news agency resistance layer (4), outer conducting layer (5) and external insulation layer (6); Inner conducting layer (1) is positioned at the central authorities of electric heating element, and contre electrode jack (8) is positioned at the central authorities of inner conducting layer (1) bottom; Internal resistance layer (2) is divided into two sections, and the external diameter of hypomere is greater than the external diameter of epimere, and the hypomere of internal resistance layer (2) is wrapped in outside the inner conducting layer (1); Inner insulating layer (3) is divided into three sections, its stage casing external diameter is greater than its epimere external diameter, its hypomere external diameter is greater than its stage casing external diameter, and the epimere of inner insulating layer (3) is wrapped in outside the epimere of internal resistance layer (2), and the stage casing of inner insulating layer (3) and hypomere are wrapped in outside the hypomere of internal resistance layer (2); Dispatch from foreign news agency resistance layer (4) is divided into two sections, and its epimere is wrapped in outside the epimere of inner insulating layer (3), and the hypomere of dispatch from foreign news agency resistance layer (4) is wrapped in outside the stage casing of inner insulating layer (3), and the external diameter of the hypomere of dispatch from foreign news agency resistance layer (4) is less than the external diameter of inner insulating layer (3) hypomere; On the epimere top of inner insulating layer (3) intercommunicating pore (7) is arranged, the part material of dispatch from foreign news agency resistance layer (4) is located to be communicated with at intercommunicating pore (7) with the part material of internal resistance layer (2); Outer conducting layer (5) wraps in outside the hypomere of dispatch from foreign news agency resistance layer (4), outer conducting layer (5) is divided into two sections, the external diameter of its hypomere equals the external diameter of the hypomere of inner insulating layer (3), the external diameter of outer conducting layer (5) epimere is less than the external diameter of outer conducting layer (5) hypomere, and outer conducting layer (5) hypomere is other electrode junction (9); External insulation layer (6) wraps in outside the epimere of outer conducting layer (5).
2,, it is characterized in that wherein inner conducting layer (1), internal resistance layer (2), inner insulating layer (3), dispatch from foreign news agency resistance layer (4), outer conducting layer (5) and external insulation layer (6) made by the ceramic material of silicon nitride comprising and molybdenum disilicide according to the described ceramic six-layered electric heater of claim 1.
CNB2006100204235A 2006-03-04 2006-03-04 Six-layered structure all-ceramic electric heater Active CN100496169C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2006100204235A CN100496169C (en) 2006-03-04 2006-03-04 Six-layered structure all-ceramic electric heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2006100204235A CN100496169C (en) 2006-03-04 2006-03-04 Six-layered structure all-ceramic electric heater

Publications (2)

Publication Number Publication Date
CN101031168A CN101031168A (en) 2007-09-05
CN100496169C true CN100496169C (en) 2009-06-03

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CNB2006100204235A Active CN100496169C (en) 2006-03-04 2006-03-04 Six-layered structure all-ceramic electric heater

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CN (1) CN100496169C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106912120A (en) * 2015-08-21 2017-06-30 重庆利迈陶瓷技术有限公司 A kind of ceramic electrically-heated body
CN109206136A (en) * 2018-08-31 2019-01-15 湖南聚能陶瓷材料有限公司 A kind of preparation method of high-pressure resistant ceramic heater
CN114679801A (en) * 2022-03-30 2022-06-28 重庆利迈科技有限公司 Full ceramic heating element

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