WO2015064598A1 - Heater and glow plug - Google Patents
Heater and glow plug Download PDFInfo
- Publication number
- WO2015064598A1 WO2015064598A1 PCT/JP2014/078675 JP2014078675W WO2015064598A1 WO 2015064598 A1 WO2015064598 A1 WO 2015064598A1 JP 2014078675 W JP2014078675 W JP 2014078675W WO 2015064598 A1 WO2015064598 A1 WO 2015064598A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ceramic body
- metal cap
- slit
- heater
- conductor layer
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
- H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
- F23Q7/001—Glowing plugs for internal-combustion engines
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/027—Heaters specially adapted for glow plug igniters
Definitions
- the present invention relates to, for example, a heater used in various sensors or measuring devices such as a combustion-type in-vehicle heating device, an oil fan heater, a glow plug of an automobile engine, an oxygen sensor, and a glow plug using the heater.
- a heater used in various sensors or measuring devices such as a combustion-type in-vehicle heating device, an oil fan heater, a glow plug of an automobile engine, an oxygen sensor, and a glow plug using the heater.
- Patent Document 1 Japanese Utility Model Publication No. 63-80456 (hereinafter, referred to as Patent Document 1) is used as a heater used in various sensors or measuring devices such as a combustion-type in-vehicle heating device, an oil fan heater, a glow plug of an automobile engine, and an oxygen sensor.
- the heater disclosed in is known.
- the heater disclosed in Patent Document 1 includes a ceramic body in which a heating resistor is embedded, and a metal cap provided so as to cover one end of the ceramic body.
- the metal cap is electrically connected to the heating resistor, and power can be supplied to the heating resistor by connecting a lead terminal to the metal cap. In this way, the heater can generate heat.
- the present invention has been made in view of such problems, and an object of the present invention is to provide a heater that can reduce the thermal stress generated between the ceramic body and the metal cap.
- the heater according to one aspect of the present invention includes a rod-shaped ceramic body, a heating resistor embedded in the ceramic body, and provided at least on one surface of the ceramic body and electrically connected to the heating resistor.
- a conductive layer, and a metal cap for external connection provided so as to cover the one end of the ceramic body together with at least a part of the conductive layer, and the metal cap is formed on a part of the outer periphery from the outside to the inside. It has a slit to go.
- FIG. 2 is a perspective view of one end of a ceramic body and a conductor layer of the heater shown in FIG. 1. It is a perspective view of the metal cap of the heater shown in FIG. It is the perspective view which expanded the vicinity of the metal cap among the heaters shown in FIG. It is sectional drawing to which the vicinity of the metal cap was expanded among the heaters shown in FIG.
- FIG. 1 is a sectional view showing a heater 10 according to an embodiment of the present invention.
- the heater 10 includes a ceramic body 1, a heating resistor 2 embedded in the ceramic body 1, and a metal cap 4 that covers one end side of the ceramic body 1.
- a conductor layer 3 is further provided on one end side of the ceramic body 1 as shown in FIG. 2.
- the region where the conductor layer 3 is provided is indicated by hatching.
- the heating resistor 2 and the conductor layer 3 are electrically connected via the lead-out part 22.
- the ceramic body 1 is a member formed in a rod shape, for example.
- the bar shape means a shape that is long in one direction. Therefore, for example, even if it is a plate shape that is long in one direction, it can be regarded as a rod shape.
- the ceramic body 1 is provided with a tapered portion 11 on one end side.
- ceramics having electrical insulation properties such as oxide ceramics, nitride ceramics, or carbide ceramics are used. Specifically, alumina ceramics, silicon nitride ceramics, aluminum nitride ceramics, silicon carbide ceramics, or the like can be used.
- the ceramic body 1 is preferably made of silicon nitride ceramics. Silicon nitride ceramics are excellent in that silicon nitride as a main component has high strength, high toughness, high insulation and high heat resistance.
- the ceramic body 1 made of silicon nitride ceramic is, for example, 5 to 15% by mass of a rare earth element such as Y 2 O 3 , Yb 2 O 3 or Er 2 O 3 as a sintering aid with respect to silicon nitride as a main component.
- Element oxide, 0.5-5% by mass of Al 2 O 3 , and SiO 2 are mixed so that the amount of SiO 2 contained in the sintered body is 1.5-5% by mass, and formed into a predetermined shape Then, it can be obtained by hot press firing at 1650 to 1780 ° C.
- the length is set to 20 to 50 mm, for example, and the diameter of the ceramic body 1 is set to 2.5 to 5 mm, for example.
- the length of the ceramic body 1 is about 20 to 50 mm and the diameter of the ceramic body 1 is about 3 mm
- the length of the tapered portion 11 is 0.1 to 3 mm
- the diameter of the end face of the tapered portion 11 is It can be set to 1 to 2.9 mm.
- the ceramic body 1 is made of silicon nitride ceramics and the heating resistor 2 is made of molybdenum (Mo) or tungsten (W), the ceramic body 1 includes MoSi 2 and WSi. It is preferable to mix and disperse 2 etc. Thereby, the thermal expansion coefficient of the silicon nitride ceramics which is a base material can be brought close to the thermal expansion coefficient of the heating resistor 2, and the durability of the heater 10 can be improved.
- the heating resistor 2 is a resistor for generating heat and generates heat when a current flows.
- the heating resistor 2 is embedded in the ceramic body 1.
- the heating resistor 2 includes a heating part 21 that is a part that mainly generates heat, and a lead-out part 22 connected to the heating part 21.
- the heat generating portion 21 is provided on the other end side of the ceramic body 1.
- the heat generating portion 21 has a folded shape, and each end portion is connected to the lead-out portion 22.
- the heat generating portion 21 is a portion that generates the most heat near the center of the folded portion in the folded shape.
- the length from the front end of the heat generating portion 21 to the rear end of the heat generating resistor 2 in the length direction of the ceramic body 1 is set to 2 to 10 mm, for example.
- the lead-out part 22 is a member for electrically connecting the heat generating part 21 and an external power source, and one end is drawn out to the surface of the ceramic body 1 and the other end is connected to the heat generating part 21. Yes.
- the lead-out part 22 is separately connected to both ends of the heat generating part 21.
- One lead-out portion 22 is drawn out to the end face on one end side of the ceramic body 1. In FIG. 2, a portion where the lead-out portion 22 is drawn out on the end face on one end side of the ceramic body 1 is indicated by a broken line.
- the other lead-out part 22 is drawn out to the outer peripheral surface of the region on one end side of the ceramic body 1.
- the heating resistor 2 may be composed mainly of carbides such as W, Mo or titanium (Ti), nitrides or silicides. Further, the heating resistor 2 may contain the same material as the ceramic body 1 in order to bring the coefficient of thermal expansion close to that of the ceramic body 1.
- the heat generating portion 21 has a high resistance value, and generates heat most in the vicinity of the turning point.
- the lead-out portion 22 generates a resistance value per unit length by reducing the content of the forming material of the ceramic body 1 less than that of the heat generating portion 21 or increasing the cross-sectional area of the heat generating portion 21. It is lower than the part 21.
- the conductor layer 3 is a member for electrically connecting the heating resistor 2 and an external electrode.
- the conductor layer 3 is provided on one end side of the ceramic body 1. More specifically, the conductor layer 3 is provided on the end surface of the ceramic body 1 and a part of the outer peripheral surface of the tapered portion 11.
- the conductor layer 3 is electrically connected to the heating resistor 2 via the lead-out portion 22.
- the conductor layer 3 includes a metallized layer and a plating layer laminated on the metallized layer.
- the metallized layer for example, a metallized layer containing silver, copper and titanium or a metallized layer containing gold, nickel and palladium (Pd) can be used.
- the plating layer for example, nickel boron plating, gold plating or nickel plating can be used.
- the thickness of the metallized layer can be set to about 20 to 40 ⁇ m, for example. Moreover, it is preferable that the thickness of a plating layer is 1 micrometer or more, for example.
- the metal cap 4 is a metal member having a bottom portion 41 and side portions 42.
- a metal material such as stainless steel or iron (Fe) -nickel (Ni) -cobalt (Co) alloy can be used.
- iron (Fe) -nickel (Ni) -cobalt (Co) alloy it is preferable to use an iron (Fe) -nickel (Ni) -cobalt (Co) alloy.
- the metal cap 4 is a member for firmly connecting the conductor layer 3 and an external electrode.
- the metal cap 4 is provided so as to cover one end side of the ceramic body 1 and at least a part of the conductor layer 3, and is electrically connected to the conductor layer 3.
- the metal cap 4 has a shape corresponding to the taper of the ceramic body 1.
- the bottom 41 is a plate having a substantially circular diameter.
- the side portion 42 has a substantially annular shape when viewed in a cross section perpendicular to the axial length direction of the ceramic body 1, and has a shape that widens as the distance from the bottom portion 41 increases.
- the metal cap 4 is attached to the ceramic body 1 such that the bottom portion 41 faces one end of the ceramic body 1 and the side portion 42 covers a part of the tapered portion 11.
- the metal cap 4 has a slit 43 that extends from the outer side, that is, the edge, to the inner side, that is, toward the center, on a part of the outer periphery of the metal cap 4. More specifically, a slit 43 is provided from the lower end of the side portion 42 toward the center of the bottom portion 41.
- a slit 43 is provided from the lower end of the side portion 42 toward the center of the bottom portion 41.
- the inclination angle ⁇ of the inner peripheral surface of the side portion 42 is larger than the inclination angle ⁇ of the tapered portion 11.
- the inclination angle ⁇ indicates how much the inner peripheral surface of the side portion 42 is inclined with respect to the plane including the inner surface of the bottom portion 41.
- the inclination angle ⁇ indicates how much the outer peripheral surface of the tapered portion 11 is inclined with respect to the surface perpendicular to the axial direction of the ceramic body 1.
- the inclination angle ⁇ is larger than the inclination angle ⁇ , when the metal cap 4 is attached to the taper portion 11, the lower surface of the side portion 42 of the metal cap 4 is in contact with the taper portion 11, and the bottom 41 of the metal cap 4 A gap can be formed between the inner side surface and the portion of the conductor layer 3 provided on the end surface of the tapered portion 11. And as shown in FIG. 5, the metal cap 4 and the conductor layer 3 can be firmly joined by interposing the brazing material 7 in this gap.
- the inclination angle ⁇ of the inner peripheral surface of the side portion 42 can be set to 40 to 80 °, for example. Further, the inclination angle ⁇ of the tapered portion 11 can be set to 45 to 75 °, for example.
- the brazing material 7 is omitted for the sake of easy viewing.
- the slit 43 of the metal cap 4 reaches the center of the metal cap 4.
- the slit 43 is formed from the lower end of the side portion 42 of the metal cap 4 to the central portion of the bottom portion 41.
- the tip of the slit 43 is processed into a round hole at the center.
- Such a shape can also be regarded as one slit 43.
- the slit 43 having a constant width may reach the center of the bottom 41, or the width of the slit 43 may change midway.
- the inner diameter of the bottom 41 is set to about 1.5 to 2 mm and the thickness of the bottom 41 is set to about 0.1 to 0.5 mm. it can. Further, the inner diameter of the lower end of the side portion 42 is set to about 1.5 to 2.5 mm, the thickness of the side portion 42 is set to about 0.1 to 0.5 mm, and the height of the side portion 42 is set to 1 to 1.2 mm. Can be set.
- the length of the slit 43 can be set to 1 to 2 mm.
- the heater 10 further includes a lead terminal 5 whose end is connected to the conductor layer 3.
- the lead terminal 5 is a member for electrically connecting the metal cap 4 and the conductor layer 3 to an external electrode.
- the lead terminal 5 is made of a metal material such as nickel or stainless steel.
- the lead terminal 5 is a linear member, and an end thereof is located inside the slit 43 of the metal cap 4 and is joined to the metal cap 4. Thereby, compared with the case where the outer surface of the bottom part 41 of the metal cap 4 and the lead terminal 5 are joined, the metal cap 4 and the lead terminal 5 can be joined firmly.
- the brazing material 7 described above extends to the inside of the portion of the slit 43 located at the bottom 41, and the brazing material 7 surrounds the lead terminal 5.
- the brazing material 7 spreads not only inside the portion of the slit 43 located at the bottom 41 but also outside the bottom 41 and spreads outside the bottom 41. This portion surrounds the end of the lead terminal 5. Thereby, the metal cap 4 and the lead terminal 5 can be joined more firmly.
- the width of the tip portion of the slit 43 is larger than the width of the portion of the slit 43 from the outside toward the inside.
- the tip of the slit 43 is circular when viewed from above at the center of the bottom 41 of the metal cap 4, and the diameter (width) of the tip of the slit 43 is from the outside of the slit 43. It is larger than the width of the part going inward.
- the diameter of the lead terminal 5 may be larger than the width of the portion from the outside toward the inside of the slit 43 and smaller than the diameter (width) of the tip portion of the slit 43. Thereby, the possibility that the lead terminal 5 is shifted to the portion from the outside toward the inside of the slit 43 can be further reduced.
- tip part of the slit 43 is circular shape, it is not restricted to this. Specifically, the distal end portion of the slit 43 may be a polygonal shape such as a square shape. Further, the tip portion of the slit 43 may be oval or oval. In addition, when the shape of the front-end
- the brazing material 7 may spread out in the portion of the slit 43 located at the bottom 41 and the brazing material 7 may not be spread out in the portion of the slit 43 located at the side 42. Thereby, the thermal stress generated between the metal cap 4 and the ceramic body 1 can be reduced while firmly bonding the metal cap 4 and the lead terminal 5.
- the brazing material 7 may be spread not only on the portion of the conductor layer 3 provided on the end surface of the ceramic body 1 but also on a portion provided on a part of the outer peripheral surface of the tapered portion 11. And the part provided in a part of outer peripheral surface of the taper part 11 among the conductor layers 3 and the side part 42 of the metal cap 4 may be joined. Thereby, the metal cap 4 and the lead terminal 5 can be joined more firmly.
- the metal cap 4 has a bottom portion 41 and a side portion 42, and the conductor layer 3 is located closer to the bottom 41 side than the end portion on the opening side of the side portion 42 of the metal cap 4 in the surface of the ceramic body 1. . More specifically, the end portion of the side portion 42 of the metal cap 4 that is located on the opposite side of the bottom portion 41 is in contact with the outer peripheral surface of the tapered portion 11, and the portion of the outer peripheral surface of the tapered portion 11 that is in contact with the side portion 42. Also, the conductor layer 3 is provided on the end face side of the ceramic body 1. In other words, a configuration in which the conductor layer 3 is not provided on a portion of the outer peripheral surface of the tapered portion 11 that is in contact with the side portion 42 may be adopted. Thereby, when the conductor layer 3 and the metal cap 4 are joined by the brazing material 7, the brazing material 7 can be easily stored between the conductor layer 3 and the metal cap 4.
- the lead-out portion 22 of the heating resistor 2 is drawn to the end face of one end of the ceramic body 1.
- the portion from which the lead-out portion 22 is drawn overlaps the slit 43, and the lead terminal 5 is located inside the slit 43. Further, the lead terminal 5 is positioned so as to overlap the portion from which the lead-out portion 22 is drawn.
- the glow plug 100 of the present embodiment includes the above-described heater 10 and a cylindrical metal member 6 attached to the tapered portion 11 side of the heater 10.
- the metal member 6 is a member for holding the ceramic body 1.
- the metal member 6 is a cylindrical member and is provided so as to surround one end side of the ceramic body 1. In other words, the ceramic body 1 is inserted inside the metal member 6.
- the metal member 6 is electrically connected to the other lead-out portion 22 drawn to one end side of the ceramic body 1.
- the metal member 6 is made of, for example, stainless steel or iron (Fe) -nickel (Ni) -cobalt (Co) alloy.
- the metal member 6 and the ceramic body 1 are joined by a brazing material (not shown).
- the brazing material is provided so as to surround the end of the ceramic body 1.
- the brazing material is provided in layers on the entire circumference of the end of the ceramic body 1.
- the glow plug 100 of the present embodiment includes the heater 10 in which the thermal stress generated between the metal cap 4 and the ceramic body 1 is reduced, so that the long-term reliability of the heater 10 is improved. As a result, the long-term reliability of the glow plug 100 is improved.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Resistance Heating (AREA)
Abstract
Description
11:テーパー部
2:発熱抵抗体
21:発熱部
22:導出部
3:導体層
4:金属キャップ
41:底部
42:側部
43:スリット
5:リード端子
6:金属部材
7:ろう材
10:ヒータ
100:グロープラグ 1: Ceramic body 11: Tapered portion 2: Heat generating resistor 21: Heat generating portion 22: Deriving portion 3: Conductor layer 4: Metal cap 41: Bottom portion 42: Side portion 43: Slit 5: Lead terminal 6: Metal member 7: Brazing Material 10: Heater 100: Glow plug
Claims (7)
- 棒状のセラミック体と、該セラミック体に埋設された発熱抵抗体と、少なくとも前記セラミック体の一端の表面に設けられて前記発熱抵抗体に電気的に接続された導体層と、前記セラミック体の前記一端を前記導体層の少なくとも一部とともに覆うように設けられた外部接続用の金属キャップとを備えており、
該金属キャップが外周の一部に外側から内側に向かうスリットを有しているヒータ。 A rod-shaped ceramic body, a heating resistor embedded in the ceramic body, a conductor layer provided on at least one surface of the ceramic body and electrically connected to the heating resistor, and the ceramic body A metal cap for external connection provided to cover one end together with at least a part of the conductor layer;
A heater in which the metal cap has a slit directed from the outside to the inside in a part of the outer periphery. - 前記スリットの先端部が前記金属キャップの中心に達している請求項1に記載のヒータ。 The heater according to claim 1, wherein a tip end portion of the slit reaches a center of the metal cap.
- 前記スリットのうち先端部の幅が前記スリットのうち外側から内側に向かう部分の幅よりも大きい請求項1または請求項2に記載のヒータ。 The heater according to claim 1 or 2, wherein a width of a tip portion of the slit is larger than a width of a portion of the slit from the outside toward the inside.
- 端部が前記導体層に接続されたリード端子をさらに有しており、該リード端子の前記端部が前記スリットの内部に位置して前記金属キャップに接合されている請求項1乃至請求項3のいずれかに記載のヒータ。 4. The lead terminal having an end portion connected to the conductor layer, and the end portion of the lead terminal is located inside the slit and joined to the metal cap. The heater in any one of.
- 前記発熱抵抗体が前記セラミック体の前記一端の端面に引き出されているとともに、前記発熱抵抗体の引き出された部位が前記スリットと重なっている請求項4に記載のヒータ。 The heater according to claim 4, wherein the heating resistor is pulled out to an end face of the one end of the ceramic body, and a portion where the heating resistor is pulled out overlaps the slit.
- 前記金属キャップが底部および側部を有するとともに、前記導体層が前記セラミック体の表面のうち前記金属キャップの前記側部の開口側の端部よりも底部側に位置している請求項1乃至請求項5のいずれかに記載のヒータ。 The metal cap has a bottom portion and a side portion, and the conductor layer is located on the bottom side of the surface of the ceramic body with respect to the end portion on the opening side of the side portion of the metal cap. Item 6. The heater according to any one of Items 5.
- 請求項1乃至請求項6のいずれかに記載のヒータと、該ヒータの前記一端側に取り付けられた筒状の金属部材とを備えるグロープラグ。 A glow plug comprising: the heater according to any one of claims 1 to 6; and a cylindrical metal member attached to the one end of the heater.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14859213.2A EP3064834B1 (en) | 2013-10-28 | 2014-10-28 | Heater and glow plug |
JP2015545249A JP6075810B2 (en) | 2013-10-28 | 2014-10-28 | Heater and glow plug |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2013-223073 | 2013-10-28 | ||
JP2013223073 | 2013-10-28 |
Publications (1)
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WO2015064598A1 true WO2015064598A1 (en) | 2015-05-07 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2014/078675 WO2015064598A1 (en) | 2013-10-28 | 2014-10-28 | Heater and glow plug |
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EP (1) | EP3064834B1 (en) |
JP (1) | JP6075810B2 (en) |
WO (1) | WO2015064598A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019003777A1 (en) * | 2017-06-29 | 2019-01-03 | 京セラ株式会社 | Heater |
JP2019133762A (en) * | 2018-01-29 | 2019-08-08 | 京セラ株式会社 | heater |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6668690B2 (en) | 2015-11-06 | 2020-03-18 | 株式会社デンソー | Ceramic glow plug |
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JPS60165682U (en) * | 1984-04-12 | 1985-11-02 | 日本特殊陶業株式会社 | Double insulation type ceramic glow plug |
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JPH0228044B2 (en) * | 1984-04-12 | 1990-06-21 | Nippon Tokushu Togyo Kk | |
JPH0443721Y2 (en) * | 1985-04-17 | 1992-10-15 | ||
JPH07103478A (en) * | 1993-10-04 | 1995-04-18 | Nippondenso Co Ltd | Glow plug |
JPH07167434A (en) * | 1993-12-15 | 1995-07-04 | Nippondenso Co Ltd | Glow plug |
JP3121860B2 (en) * | 1991-06-06 | 2001-01-09 | 京セラ株式会社 | Ceramic heater |
JP2005315447A (en) * | 2004-04-27 | 2005-11-10 | Kyocera Corp | Ceramic heater and glow plug |
WO2009096477A1 (en) * | 2008-01-29 | 2009-08-06 | Kyocera Corporation | Ceramic heater and glow plug |
US20120043309A1 (en) * | 2009-09-30 | 2012-02-23 | Yue Cheng | Glow plug and method for connecting a pin made of functional ceramic to a metal sleeve |
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EP0635993B1 (en) * | 1993-07-20 | 2000-05-17 | TDK Corporation | Ceramic heater |
-
2014
- 2014-10-28 JP JP2015545249A patent/JP6075810B2/en active Active
- 2014-10-28 EP EP14859213.2A patent/EP3064834B1/en active Active
- 2014-10-28 WO PCT/JP2014/078675 patent/WO2015064598A1/en active Application Filing
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JPS60165682U (en) * | 1984-04-12 | 1985-11-02 | 日本特殊陶業株式会社 | Double insulation type ceramic glow plug |
JPH0228044B2 (en) * | 1984-04-12 | 1990-06-21 | Nippon Tokushu Togyo Kk | |
JPH0443721Y2 (en) * | 1985-04-17 | 1992-10-15 | ||
JPS6380456U (en) | 1986-11-10 | 1988-05-27 | ||
JP3121860B2 (en) * | 1991-06-06 | 2001-01-09 | 京セラ株式会社 | Ceramic heater |
JPH07103478A (en) * | 1993-10-04 | 1995-04-18 | Nippondenso Co Ltd | Glow plug |
JPH07167434A (en) * | 1993-12-15 | 1995-07-04 | Nippondenso Co Ltd | Glow plug |
JP2005315447A (en) * | 2004-04-27 | 2005-11-10 | Kyocera Corp | Ceramic heater and glow plug |
WO2009096477A1 (en) * | 2008-01-29 | 2009-08-06 | Kyocera Corporation | Ceramic heater and glow plug |
US20120043309A1 (en) * | 2009-09-30 | 2012-02-23 | Yue Cheng | Glow plug and method for connecting a pin made of functional ceramic to a metal sleeve |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019003777A1 (en) * | 2017-06-29 | 2019-01-03 | 京セラ株式会社 | Heater |
JPWO2019003777A1 (en) * | 2017-06-29 | 2019-12-12 | 京セラ株式会社 | heater |
JP2019133762A (en) * | 2018-01-29 | 2019-08-08 | 京セラ株式会社 | heater |
JP2022179695A (en) * | 2018-01-29 | 2022-12-02 | 京セラ株式会社 | heater |
JP7444946B2 (en) | 2018-01-29 | 2024-03-06 | 京セラ株式会社 | heater |
Also Published As
Publication number | Publication date |
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JP6075810B2 (en) | 2017-02-08 |
JPWO2015064598A1 (en) | 2017-03-09 |
EP3064834A4 (en) | 2017-06-21 |
EP3064834A1 (en) | 2016-09-07 |
EP3064834B1 (en) | 2018-07-18 |
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