EP1714577A2 - Warmluftgebläse mit keramischem Heizelement - Google Patents
Warmluftgebläse mit keramischem Heizelement Download PDFInfo
- Publication number
- EP1714577A2 EP1714577A2 EP06007714A EP06007714A EP1714577A2 EP 1714577 A2 EP1714577 A2 EP 1714577A2 EP 06007714 A EP06007714 A EP 06007714A EP 06007714 A EP06007714 A EP 06007714A EP 1714577 A2 EP1714577 A2 EP 1714577A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- heating element
- ceramic base
- electric
- hot air
- ceramic
- 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.)
- Withdrawn
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Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D20/00—Hair drying devices; Accessories therefor
- A45D20/22—Helmets with hot air supply or ventilating means, e.g. electrically heated air current
- A45D20/38—Arrangement of the electric heating means
-
- 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
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
- H05B3/26—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
- H05B3/265—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base the insulating base being an inorganic material, e.g. ceramic
Definitions
- the present invention relates to home appliances involving electric heating, and more particularly, to hair blowers and electric air heaters having heating elements.
- Fig. 1 illustrates an in inner structure of an existing electric hot air blower 100, where the electric heater is made of wound nickel-chromium alloy wires.
- Blower 100 includes a housing 105, an air inlet 110, an air outlet 115, a driving motor 120, a fan 125, and resistance heating wires 130 wrapped around a bracket 135.
- Resistance heating wires 130 when an electric current is applied thereto, heat up and heat air blown from fan 125 that contacts wires 130.
- Fig.2 shows several common winding patterns of the existing electric hot air blower resistance wires 130.
- Fig. 2A shows a spring coil pattern
- Fig. 2B shows a delta pattern
- Fig. 2C shows a long arc pattern of heating wires 130.
- U.S. Patent No. 6,378,225 B1 discloses an air blower that uses a ceramic radiator, suspended on a bracket, that can emit far infrared radiation. Nickel-chromium resistance wires are wound around the ceramic radiator.
- resistance wires emit light, resulting in a low efficiency in the conversion from electricity to heat and a consequent waste of energy.
- Current electric heaters having ceramic radiators are also inefficient, as electric heaters made up of nickel-chromium resistance wires heat the far infrared ceramic radiators indirectly, resulting in a low emission efficiency.
- a heating element for an electric air heater including an electric power source, a ceramic base, and a conductive heating film substantially uniformly deposited on at least a portion of a surface of the base and electrically connected to the power source.
- a method for manufacturing the heating element is also provided.
- an electric hot air blower including a housing having an air inlet and an air outlet, a fan operatively connected to an electric motor, and an electric heating element located inside the housing that includes a ceramic base and a conductive film substantially uniformly deposited on a surface of the base and electrically connected to a power source.
- the electric heating element is aligned with an air flow path of the blower for heating air flow.
- Fig. 1 is a side cross-sectional view of a prior art hot air blower.
- Fig. 2 is a front view showing variations of the hot air blower of Fig. 1, particularly showing several common winding patterns of resistance wires.
- Fig. 3 is a side cross-sectional view of one embodiment of an electric hot air blower of the present invention including cylindrical ceramic elements constituting both a heater and a voltage dropping resistor for a driving motor.
- Fig. 4 is a perspective view of the internal structure of the electric hot air blower of Fig. 3.
- Fig. 5A is a side cross-sectional view
- Fig. 5B is a front cross-sectional view, of a cylindrical ceramic heating element according to the present invention.
- Fig. 6A is a side cross-sectional view
- Fig. 6B is a front cross-sectional view, of a square tubular ceramic heating element according to the present invention.
- Fig. 7A is a side cross-sectional view
- Fig. 7B is a front cross-sectional view, of a cone shaped ceramic heating element according to the present invention.
- Fig. 8A is a side cross-sectional view along a plane represented by the line A-A
- Fig. 8B is a front cross-sectional view in a plane perpendicular to plane A-A, of a column-shaped heating element according to the present invention.
- Fig. 9 is a front cross-sectional view of an embodiment of the heating element of the present invention having multiple interior components.
- Fig.10 is an electric schematic drawing, showing a single piece of a ceramic heating element as a voltage dropping resistor.
- Fig.11 is an electric schematic drawing, showing two pieces of ceramic heating elements incorporated as a voltage dropping resistor.
- Fig.12 is a perspective view showing the internal structure of a second embodiment of an electric hot air blower of the present invention, shown assembled.
- Fig.13 is a perspective view showing the internal structure of the electric air blower of Fig. 12, shown disassembled.
- an electric hot air blower i.e., a hair dryer
- Hair blower 300 utilizes a newly developed heating element, including conductive film or thin layer deposited on and preferably attached to a ceramic base, as an air heater.
- Hair blower 300 includes a shell 305 with an air inlet 310 and an air outlet 315, a fan 320 operatively connected to a driving motor 325 assembled inside shell 305. Also mounted or assembled inside shell 305 is an electric heating element 330 for heating airflow and a power control assembly including a secondary/auxiliary heater and/or voltage dropping resistor 335.
- a bracket 340 holds heating element 330 and voltage dropping resistor 335 in position along an air flow path of hair blower 300.
- resistor 335 acts as a dropping resistor, and may also act as a secondary heater. In another embodiment, resistor 335 acts only as a secondary heater.
- Electric heating element 330 includes a ceramic base, upon whose surfaces are deposited a film that is preferably adhered to ceramic base.
- the thickness of the film is preferably between about 0.8 mm to 1.5 mm. In a preferred embodiment, the thickness of the film is about 1.2 mm.
- the film is an electrically conductive film having a resistance sufficient to produce a desired amount of heat upon application of a selected current. Heating element 330, when heated, emits far infrared radiation.
- the resistance heating film on heating element 330 When power is switched on, the resistance heating film on heating element 330 will be heated first, and then the ceramic base of heating element 330 is heated directly, which will emit far infrared radiation at high temperature to heat airflow passing over it.
- the heated air will be forced out of air outlet 315 by the airflow produced by fan 320, thus acquiring high electricity-heat conversion efficiency, high far infrared emission efficiency and less air resistance.
- Hair Blower 300 also includes a power control assembly.
- Power control assembly includes a voltage dropping device 335 connected to driving motor 325.
- Dropping device 335 lowers the voltage from the higher voltage supplied by a power source, such as power accessed from a wall socket, to a lower voltage suitable for driving motor 325.
- Dropping device 335 preferably includes a heating element that includes a conductive resistance heating film deposited on a ceramic base as the voltage dropping resistor. Dropping device 335 is thus preferably of a similar structure as heating element 330, and materials used for the ceramic base and resistive film of dropping device 335 are preferably the same materials used for the ceramic base and resistive film of heating element 330.
- Both heating element 330 and voltage dropping device 335 are mounted on a bracket 340 located between fan 320 and air outlet 315.
- bracket 340 is a mica bracket.
- heating element 330 includes a ceramic base piece 345 having a resistive heating film adhered to at least part of the surface of base piece 345.
- the resistive heating film is deposited on all exterior surfaces of base piece 345.
- Base piece 345 can take any desired shape, such as a hollow cylinder shown in Figs. 5A and 5B, a hollow square tubular shape shown in Figs. 6A and 6B, and a hollow conical shape.
- An example of a conical shaped ceramic base piece 345 is shown in Figs. 7A and 7B, in which the bore 705 is cylindrical and the external surface 710 is conic.
- Electrodes may be adhered to, or incorporated in, a part of the resistive heating film.
- ceramic base piece 345 includes a plurality of ceramic tubular structures surrounded by an exterior ceramic tubular structure.
- An example is shown in Fig. 9, in which ceramic base piece 345 includes an exterior ceramic base piece 347 and multiple ceramic interior base pieces 349.
- the interior pieces 349 and the exterior piece 347 are made from the same material.
- the conductive resistive heating film is applied only to the exterior of exterior piece 347, but the heating film may also be applied to portions of both the exterior piece 347 and the interior pieces 349.
- four hollow tubular interior ceramic pieces are shown, although any number may be used.
- heating element 330 includes a conductive resistive heating film that is substantially uniformly deposited on a surface of the ceramic base, and is adhered to the ceramic base.
- the conductive film may be sintered onto the surface of the ceramic base.
- the conductive film preferably includes electrodes incorporated into or electrically connected to the conductive film for connection between heating element 330 and a power source.
- ceramic base piece 340 is made of quality ceramic having a thickness of about 0.5 to 3.0 mm thick.
- the ceramic material contains aluminum oxide.
- the resistive heating film may contain any of a number of compositions such as germanium, borosilicate, ytterbium oxide, a semiconductor ceramic far-infrared material, and bismuth oxide.
- the resistive heating film does not contain any potentially harmful substances such as lead, mercury, a semiconductor ceramic far-infrared material, hexavalent chromium, polyether, benzene, and benzoic acid.
- the resistive heating film is made from a slurry that is adhered to ceramic base piece 340 by sintering.
- the expansion coefficient of the slurry is preferably substantially the same as that of the material of ceramic base piece 340.
- the slurry is first applied to the selected surfaces of ceramic base piece 345, preferably by spraying. After applied onto the selected surfaces, the slurry is sintered on the surfaces at a temperature of, e.g., about 1300°C to form a uniform resistive heating film. Electrodes are then formed by applying additional slurry on the surface at preferably both ends of ceramic base piece 345 together with welding leads for electric connections. The additional slurry is then sintered at a high temperature, such as 1300°C to firmly fix the electrodes to the resistive heating film.
- the manufacturing requirements of dropping resistor 335 constructed from the ceramic base and the resistive film are generally more stringent than those used for manufacture of heating element 330. Many factors may influence physical properties of the resistance film, including ratios of germanium, borosilicate, ytterbium oxide, a semiconductor ceramic far-infrared material, bismuth oxide and, purity of bonding substance, particle size and degree of uniformity of the compositions, spraying thickness and technology. For example, if the resistive film is not uniformly applied to the ceramic base of dropping resistor 335, the DC motor may change its rotating speed continuously and the DC current may vary, thus causing great noise and shortening the motor's service life. Resistive film should be sprayed on or applied to the ceramic base to ensure a uniform resistive film to ensure stable resistance value and thus stable rotation speed of the DC motor, based on different power and voltage requirements of the motors.
- the voltage applied to driving motor 325 inside electric hot air blower 300 should not be too high, and is preferably at a level of about 24 V (DC) or below, which is generally converted from AC 110V or 220V.
- Figs. 10 and 11 are circuit diagrams showing embodiments of the electrical setup of dropping device 335 and motor 325.
- a dropping resistor 1045 includes only one piece of a heating element that includes a ceramic base having a conductive resistive heating film adhered to its surface.
- Dropping resistor 1045 is electrically connected to a motor 1020 in serial in circuit 1000, which comprises four diodes 1050 to form a rectifier circuit 1021.
- the heating element is connected in serial in circuit 1000 with the DC motor 1020 that drives a fan in the air blower.
- AC power voltage is dropped by dropping resistor 1045 prior to reaching the rectifier circuit input terminal, and DC voltage is thus supplied to the DC motor 1020 from the output terminal.
- Fig. 11 shows a circuit where two pieces of heating elements, each including a ceramic base having a conductive heating film adhered to its surface, are connected in parallel in a circuit 1100 as dropping resistors 1145 for a motor 1120 that drives a fan in the air blower.
- Motor 1120 includes four diodes 1150 to form a rectifier circuit 1121, which is connected to a power supply 1155.
- Other connections in circuit 1100 are similar to those of circuit 1000.
- Dropping resistors 1145 in this embodiment are connected in parallel in circuit 1100 with the DC motor 1120 driving the fan.
- dropping resistors can also be used in conjunction with an AC motor to drive the fan.
- the heating elements are used in the above embodiments as dropping resistors, they also act as an auxiliary heater to the electric hot air blower, providing additional air heating capability.
- Hair blower 1200 includes a fan 1220 operatively connected to a driving motor 1225, an electric heating element 1230 for heating airflow and a voltage dropping resistor 1235. Bracket 1240 holds heating element 1230 and voltage dropping resistor 1235 in position along an air flow path of hair blower 1200.
- dropping resistors 1235 are provided as two separate pieces secured to a bracket 1240. Dropping resistors 1235 are shown as two flat rectangular pieces, although other shapes, sizes and numbers may be utilized. Heating element 1230 and dropping resistors 1235, each of which include a ceramic base having a conductive film deposited and/or adhered to its surface, are assembled inside a shell of hair blower 1200 (not shown), by way of a mica bracket 1240.
- Heating element 1230 acts to heat air blowing from fan 1220 to an outlet, and dropping resistors 1235, in the form of rectangular strips in the present embodiment, act as both dropping resistors for the driving motor of fan 1220 and as auxiliary heaters.
- the heating elements and dropping resistors are provided as separate components.
- a single heating element can be utilized to act as both a heater and a dropping resistor.
- a heating element having a ceramic base with a conductive heating film is provided to heat airflow, and a selected portion of the conductive heating film in the heater makes a dropping resistor for the motor.
- the heating element has numerous advantages, including the physical properties of uniform heat generation and far infrared emission.
- the heated ceramic base can directly emit strong far infrared that has healthcare function.
- the heating element's flat and smooth surface also induces less air resistance, resulting in a more efficient air blower.
- the heating element features large surface area and low air resistance. As air resistance is low and air passage is smooth, rotation speed of the fan can be reduced, leading to reduction of noises. Furthermore, avoidance of resistance coils avoids the disadvantages inherent therewith, such as uneven heating and "spitting".
- the conductive surface heating film is preferably sintered onto the ceramic base after the resistance slurry material is sprayed on surface of said ceramic base, the film is uniform, thus resulting in even temperature distribution and long service life.
- the air blower can be reduced in size and cost, and can simplify assembly.
- heaters of the present invention can produce and utilize a laminar airflow. These units channel the air through the front of the dryer, with minimal turbulence.
- a conventional wire heater creates turbulence to effectively heat the air and avoid troublesome hot spots that fatigue and break wires. Therefore turbulence is a necessity in prior art wire coil dryers, and does not create a smooth passage of air through the grill.
- the nature of the heating tubes of the present invention creates superior airflow with reduced turbulence, with actually less fan speed, that also increases the life of the dryer motor. Reduced turbulence results in easier airflow from the fan to the air outlet, allowing the fan to be run at a slower speed, resulting in energy savings and an increase in the life of the dryer.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Resistance Heating (AREA)
- Direct Air Heating By Heater Or Combustion Gas (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2005200159781U CN2856836Y (zh) | 2005-04-18 | 2005-04-18 | 一种电热风机 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1714577A2 true EP1714577A2 (de) | 2006-10-25 |
EP1714577A3 EP1714577A3 (de) | 2010-08-04 |
Family
ID=36527196
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06007714A Withdrawn EP1714577A3 (de) | 2005-04-18 | 2006-04-12 | Warmluftgebläse mit keramischem Heizelement |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070033825A1 (de) |
EP (1) | EP1714577A3 (de) |
CN (1) | CN2856836Y (de) |
WO (1) | WO2006111048A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN100532939C (zh) * | 2006-12-14 | 2009-08-26 | 张德业 | 一种应用于热风机上的热风枪枪咀 |
KR101312014B1 (ko) | 2010-07-12 | 2013-11-14 | 오태준 | 헤어 드라이어 |
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DE502008002030D1 (de) * | 2008-06-09 | 2011-01-27 | Leister Process Tech | Elektrisches Widerstandsheizelement für eine Heizeinrichtung zum Erhitzen eines strömenden gasförmigen Mediums |
US8424543B2 (en) | 2010-06-30 | 2013-04-23 | Elc Management Llc | Red light emitting device for use with hair product and blow dryer |
GB201205690D0 (en) | 2012-03-30 | 2012-05-16 | Dyson Technology Ltd | A hand held appliance |
GB201205683D0 (en) | 2012-03-30 | 2012-05-16 | Dyson Technology Ltd | A hand held appliance |
GB201205695D0 (en) | 2012-03-30 | 2012-05-16 | Dyson Technology Ltd | Hand held appliance |
WO2013177942A1 (zh) * | 2012-05-15 | 2013-12-05 | Zhao Wenzhi | 一种空调及自动控制技术 |
WO2017007374A1 (ru) * | 2015-07-08 | 2017-01-12 | Геннадий Яковлевич ВАЙГАНДТ | Тепловентилятор (тепловая пушка) с электронагревательными соплами сквозной цилиндрической формы |
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CN106108341A (zh) * | 2016-08-15 | 2016-11-16 | 浙江诗杭电器有限公司 | 一种吹风机 |
CN106108342A (zh) * | 2016-08-17 | 2016-11-16 | 台州市黄岩容大美发器具有限公司 | 一种高效的电吹风机 |
EP3568038B1 (de) | 2017-01-12 | 2023-09-06 | Dyson Technology Limited | Tragbare vorrichtung |
GB2562276B (en) | 2017-05-10 | 2021-04-28 | Dyson Technology Ltd | A heater |
CN107661576B (zh) * | 2017-10-27 | 2018-09-25 | 李继前 | 便携式红外理疗仪 |
EP3811813A4 (de) * | 2018-06-28 | 2021-07-14 | Leshow Electronic Technology Co., Ltd. | Motor und haartrockner damit |
KR102041771B1 (ko) * | 2018-07-02 | 2019-11-07 | 한국과학기술원 | 저소음 고음질 헤어드라이어 |
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US20220026113A1 (en) * | 2018-12-11 | 2022-01-27 | Clean Planet Inc. | Heat utilization system and heat generating device |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW238409B (en) | 1993-04-26 | 1995-01-11 | Process of thermal film for semiconductor | |
CN1251747A (zh) | 1998-10-16 | 2000-05-03 | 沃尔剃刀公司 | 低噪音头发干燥装置 |
EP1086630A2 (de) | 1999-09-21 | 2001-03-28 | Create Co., Ltd. | Haartrockner |
US6378225B1 (en) | 2001-04-02 | 2002-04-30 | Fred M. Slingo | Hair dryer employing far-infrared radiation |
CN2501277Y (zh) | 2001-08-28 | 2002-07-17 | 蔡玉熙 | 一种电热管 |
WO2002080729A1 (en) | 2001-04-02 | 2002-10-17 | Slingo Fred M | Hair dryer employing far-infrared radiation |
CN1273560C (zh) | 2003-09-01 | 2006-09-06 | 王培英 | 半导瓷厚膜发热材料 |
Family Cites Families (75)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1975410A (en) * | 1931-12-12 | 1934-10-02 | Pittsburgh Res Corp | Electric heating furnace |
US2221703A (en) * | 1939-07-25 | 1940-11-12 | John V Falco | Electric unit heater |
US2481760A (en) * | 1945-11-13 | 1949-09-13 | Steam Torch Corp | Vapor superheating system and apparatus |
US2504785A (en) * | 1948-05-12 | 1950-04-18 | E A Lab Inc | Combined electric fan and heater |
US2853591A (en) * | 1955-12-15 | 1958-09-23 | American Dryer Corp | Electric hand dryer |
US3322931A (en) * | 1956-12-31 | 1967-05-30 | Laing Nikolaus | Fans |
US2987305A (en) * | 1957-05-31 | 1961-06-06 | J V Calhoun Company | Methods of and apparatus for generating and transferring heat |
US2984728A (en) * | 1958-05-21 | 1961-05-16 | Maxwell K Murphy | Radiant heater |
US3141454A (en) * | 1960-02-11 | 1964-07-21 | Laing Nikolaus | Heat storage apparatus |
US3202797A (en) * | 1961-06-19 | 1965-08-24 | Knapp Monarch Co | Hair drier with fan and heater |
US3383700A (en) * | 1965-11-26 | 1968-05-14 | Ronson Corp | Portable hair dryer |
US3477827A (en) * | 1966-07-26 | 1969-11-11 | Mottt Metallurg Corp | Catalytic reaction device |
US3426441A (en) * | 1967-01-30 | 1969-02-11 | Curtis Helene Ind Inc | Electric hair dryer |
US3486003A (en) * | 1967-05-02 | 1969-12-23 | Ronson Corp | Heater assembly |
US3529358A (en) * | 1969-06-19 | 1970-09-22 | Terrot Soehne & Co C | Procedure for heat treatment of materials |
US3668370A (en) * | 1969-11-06 | 1972-06-06 | Electronized Chem Corp | Portable electric heat gun |
US3632980A (en) * | 1970-03-24 | 1972-01-04 | Gen Motors Corp | Convector surface cooking unit |
US3647196A (en) * | 1970-06-15 | 1972-03-07 | Maytag Co | Dryer control system |
US3614388A (en) * | 1970-06-22 | 1971-10-19 | Aubrey C Robinson | Electric heating oven system |
US3781516A (en) * | 1973-02-20 | 1973-12-25 | Xerox Corp | Fuser control system |
DE2334619C2 (de) * | 1973-07-07 | 1985-04-18 | Fa. J. Eberspächer, 7300 Esslingen | Heizeinrichtung für Fahrzeuge mit Verbrennungsmotor |
US3921117A (en) * | 1974-11-29 | 1975-11-18 | Texas Instruments Inc | Solid state electrical switch |
US4061267A (en) * | 1975-08-18 | 1977-12-06 | Lof George O G | Solar heating system and operation thereof |
US4316077A (en) * | 1975-12-31 | 1982-02-16 | Texas Instruments Incorporated | Elastic hair dryer having selectively variable air output temperature |
US4234782A (en) * | 1978-01-19 | 1980-11-18 | Saskatchewan Power Corporation | Space heating using off-peak electric heat storage |
US4310747A (en) * | 1978-07-26 | 1982-01-12 | The Fluorocarbon Company | Method and apparatus utilizing a porous vitreous carbon body particularly for fluid heating |
US4220846A (en) * | 1978-07-26 | 1980-09-02 | The Fluorocarbon Company | Method and apparatus utilizing a porous vitreous carbon body particularly for fluid heating |
US4323761A (en) * | 1979-11-26 | 1982-04-06 | Huebner Otto | Radiant heat hair dryer |
US4275508A (en) * | 1980-01-09 | 1981-06-30 | Eaton Corporation | Clothes dryer temperature control system |
JPS57120047A (en) * | 1981-01-20 | 1982-07-26 | Matsushita Electric Works Ltd | Hot air blower |
GB8415637D0 (en) * | 1984-06-19 | 1984-07-25 | Black & Decker Inc | Supports for electric heating elements |
US4694142A (en) * | 1984-11-29 | 1987-09-15 | Glucksman Dov Z | Electric air heater |
US4665627A (en) * | 1985-11-01 | 1987-05-19 | Research, Incorporated | Dry film curing machine with ultraviolet lamp controls |
US4725710A (en) * | 1985-11-07 | 1988-02-16 | Ford Motor Company | Electrically heatable vision unit |
JP2694831B2 (ja) * | 1987-07-15 | 1997-12-24 | 松下電工株式会社 | ヘアカール器 |
US4868997A (en) * | 1988-06-20 | 1989-09-26 | Emhart Industries, Inc. | Dryer timer |
US5281956A (en) * | 1989-08-11 | 1994-01-25 | Whirlpool Corporation | Heater diagnostics and electronic control for a clothes dryer |
US5101575A (en) * | 1990-01-02 | 1992-04-07 | Whirlpool Corporation | Heater diagnostics and electronic control for a clothes dryer |
US5197112A (en) * | 1990-12-24 | 1993-03-23 | Cameron David M | Fixed volume PTC air heater with heat output adjusted by a damper controlling air flow over the PTC element |
US5349161A (en) * | 1992-09-30 | 1994-09-20 | Master Appliance Corporation | Heat gun with improved temperature regulator |
US5500237A (en) * | 1995-03-14 | 1996-03-19 | Gell, Jr.; Harold A. | Removable coffee roaster oven chamber |
US5887456A (en) * | 1995-08-30 | 1999-03-30 | Sharp Kabushiki Kaisha | Drum type drying/washing machine |
US5659972A (en) * | 1995-10-06 | 1997-08-26 | Avery Dennison Corporation | Apparatus and method for drying or curing web materials and coatings |
US5828810A (en) * | 1996-04-26 | 1998-10-27 | Nine Lives, Inc. | Positive temperature coefficient bar shaped immersion heater |
US5756975A (en) * | 1996-11-21 | 1998-05-26 | Ewes Enterprises | Apparatus and method for microwave curing of resins in engineered wood products |
US5960561A (en) * | 1997-05-05 | 1999-10-05 | Peter J. Listro Associates, Ltd. | Method and apparatus for roasting coffee beans in small quantities |
CN2342514Y (zh) * | 1997-10-09 | 1999-10-06 | 海尔集团公司 | 吹风机的分压整流电路 |
TW355947U (en) * | 1998-09-24 | 1999-04-11 | Yun Yen Co Ltd | Improved structure for hair drier with far infrared ray |
US20030228142A1 (en) * | 1998-11-16 | 2003-12-11 | Reiker Kenneth H. | Ceiling mounted heating and cooling device and method therefor |
US6631243B2 (en) * | 1998-11-16 | 2003-10-07 | Kenneth H. Reiker | Air recirculating and heating device |
JP3653198B2 (ja) * | 1999-07-16 | 2005-05-25 | アルプス電気株式会社 | 乾燥用ノズルおよびこれを用いた乾燥装置ならびに洗浄装置 |
WO2001022857A1 (en) * | 1999-09-28 | 2001-04-05 | Henny Penny Corporation | Holding cabinet with closed-loop humidity control system and method for controlling humidity in a holding cabinet |
US6295410B1 (en) * | 2000-02-07 | 2001-09-25 | France/Scott Fetzer Company | Pushbutton hand dryer timer and method |
US6987250B2 (en) * | 2000-04-28 | 2006-01-17 | The Holmes Group, Inc. | Control circuit for kitchen appliances |
US6943325B2 (en) * | 2000-06-30 | 2005-09-13 | Balboa Instruments, Inc. | Water heater |
US6640049B1 (en) * | 2000-11-22 | 2003-10-28 | Sharper Image Corporation | Ion emitting hot air blower |
ATE370920T1 (de) * | 2001-03-09 | 2007-09-15 | Datec Coating Corp | Im sol-gel-verfahren hergestellte widerstands- und leitfähige beschichtung |
US20030052115A1 (en) * | 2001-09-20 | 2003-03-20 | Conair Corporation | Instant heat hot air curling iron |
US6624397B2 (en) * | 2001-10-01 | 2003-09-23 | Art K. Tateishi | Electric circuit for portable heater |
US6909840B2 (en) * | 2002-06-06 | 2005-06-21 | S. C. Johnson & Son, Inc. | Localized surface volatilization |
CN2615992Y (zh) * | 2003-04-15 | 2004-05-12 | 邓泰均 | 电热膜吹风筒发热体 |
CN2619201Y (zh) * | 2003-04-15 | 2004-06-02 | 武进长城工具有限公司 | 热风枪发热体 |
CN1444887A (zh) * | 2003-04-17 | 2003-10-01 | 上海交通大学 | 高电热效率的陶瓷薄膜加热器电吹风 |
US6988375B2 (en) * | 2003-06-09 | 2006-01-24 | Whirlpool Corporation | System and method for remote appliance monitoring |
US7503675B2 (en) * | 2004-03-03 | 2009-03-17 | S.C. Johnson & Son, Inc. | Combination light device with insect control ingredient emission |
DE102004057530A1 (de) * | 2004-11-29 | 2006-06-01 | Stego-Holding Gmbh | Heizlüfter |
US20060188238A1 (en) * | 2005-02-23 | 2006-08-24 | Kent Carl E | Solar heated & powered ultrasonic air freshener diffuser |
US20070031132A1 (en) * | 2005-07-12 | 2007-02-08 | Ching-Yi Lee | Porous ceramic carrier having a far infrared function |
EP1747917B1 (de) * | 2005-07-28 | 2009-10-21 | ebm-papst St. Georgen GmbH & Co. KG | Heizaggregat |
US20070033828A1 (en) * | 2005-08-09 | 2007-02-15 | Solar Roast Coffee Llc | Method and apparatus for roasting coffee beans by means of concentrated solar thermal energy |
US20070065124A1 (en) * | 2005-09-21 | 2007-03-22 | Tsung-Yi Cheng | Heat-expelling device with a wind guide |
US8126319B2 (en) * | 2006-08-10 | 2012-02-28 | De Luca Oven Technologies, Llc | Radiant oven with stored energy devices and radiant lamps |
US7565752B2 (en) * | 2006-10-26 | 2009-07-28 | Ivan Tumbocon Dancel | Automatic ground surface dryer and method |
ITMI20062147A1 (it) * | 2006-11-09 | 2008-05-10 | Elchim Spa | Asciugacapelli dotato di un dispositivo di sicurezza |
US20080181590A1 (en) * | 2007-01-30 | 2008-07-31 | Master Appliance Corp. | Heating device and method |
-
2005
- 2005-04-18 CN CNU2005200159781U patent/CN2856836Y/zh not_active Expired - Fee Related
- 2005-05-20 WO PCT/CN2005/000698 patent/WO2006111048A1/zh active Application Filing
-
2006
- 2006-03-09 US US11/371,753 patent/US20070033825A1/en not_active Abandoned
- 2006-04-12 EP EP06007714A patent/EP1714577A3/de not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW238409B (en) | 1993-04-26 | 1995-01-11 | Process of thermal film for semiconductor | |
CN1251747A (zh) | 1998-10-16 | 2000-05-03 | 沃尔剃刀公司 | 低噪音头发干燥装置 |
US6148537A (en) | 1998-10-16 | 2000-11-21 | Wahl Clipper Corporation | Hair drying device with reduced sound emissions |
EP1086630A2 (de) | 1999-09-21 | 2001-03-28 | Create Co., Ltd. | Haartrockner |
US6378225B1 (en) | 2001-04-02 | 2002-04-30 | Fred M. Slingo | Hair dryer employing far-infrared radiation |
WO2002080729A1 (en) | 2001-04-02 | 2002-10-17 | Slingo Fred M | Hair dryer employing far-infrared radiation |
WO2002080728A1 (en) | 2001-04-02 | 2002-10-17 | Slingo Fred M | Hair dryer employing far-infrared radiation |
CN2501277Y (zh) | 2001-08-28 | 2002-07-17 | 蔡玉熙 | 一种电热管 |
CN1273560C (zh) | 2003-09-01 | 2006-09-06 | 王培英 | 半导瓷厚膜发热材料 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100532939C (zh) * | 2006-12-14 | 2009-08-26 | 张德业 | 一种应用于热风机上的热风枪枪咀 |
KR101312014B1 (ko) | 2010-07-12 | 2013-11-14 | 오태준 | 헤어 드라이어 |
Also Published As
Publication number | Publication date |
---|---|
US20070033825A1 (en) | 2007-02-15 |
WO2006111048A1 (fr) | 2006-10-26 |
CN2856836Y (zh) | 2007-01-10 |
EP1714577A3 (de) | 2010-08-04 |
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