EP1367337B1 - Electric radiator - Google Patents
Electric radiator Download PDFInfo
- Publication number
- EP1367337B1 EP1367337B1 EP01973954A EP01973954A EP1367337B1 EP 1367337 B1 EP1367337 B1 EP 1367337B1 EP 01973954 A EP01973954 A EP 01973954A EP 01973954 A EP01973954 A EP 01973954A EP 1367337 B1 EP1367337 B1 EP 1367337B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- casing
- plates
- electrical
- heating elements
- heat
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/06—Arrangement or mounting of electric heating elements
- F24C7/062—Arrangement or mounting of electric heating elements on stoves
- F24C7/065—Arrangement or mounting of electric heating elements on stoves with reflectors
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/002—Air heaters using electric energy supply
Definitions
- the present invention relates to heating equipment, and in particular to an electrical heater for indoor use.
- the existing electrical heaters comprise a case and heating elements with two major kinds of structures.
- the electrical heaters of this structure can only raise the temperature of a partial space. After the heaters have been switched on for some time, even the temperature of the partial space rises very high, temperature of the other parts in the same room is raised little. People will still feel cold when they leave the heated space for the other part of the room.
- the electrical heaters of this structure can only heat a limited space and a lot of heat energy is wasted with low effect.
- Another kind of heater is equipped with radiator in its case, in which there are hollow columns.
- the hollow columns are filled with thermal conducting oil.
- the heat produced by heating elements will make the heat circulate in the columns.
- a large quantity of heat will spread to the air indoor to raise the temperature of the whole room by convection of the radiator via the top of it.
- the heater of this structure increases temperature slowly. People can feel warm only after it has been switched on for a long time.
- the structure of the heater is complicated, bulky and too heavy to move easily. And the cost of the heater is also comparatively higher for it is filled with thermal conducting oil and then strict hermetic seal is required.
- UK Patent 981,150 acknowledges that electrical heating elements emit heat largely by radiation and by convection, and teaches that a heating element should be designed to reduce heating by radiation to a minimum and to increase heating by convection to a maximum. More particularly, it discloses an electrical convection heater having a casing including a curved deflector plate to direct the heated air upwards and outwards.
- the convection heating element is constructed from a series of fins (in the form of heat conducting plates) and tubular components threaded in turn onto an electrical heating element and adjustably clamped and locked thereon by nuts or circlips acting on springs to compress the assembly. The heat generated by the electrical heating elements is therefore conducted to the fins and the tubular elements.
- UK Patent 981,150 has taught that an electrical heater should comprise a casing for upwardly directing convection heated air, a plurality of heat conducting fins mounted within the casing, and two spaced heating elements positioned within the casing with each heating element passing through aligned aperture formed in the heat conducting fins.
- UK Patent 981,150 discloses the features of the preamble of claim 1.
- the present invention provides a heater with simple and compact structure, lighter weight and lower cost, which not only raises the temperature of the partial space rapidly by radiation but also raises the temperature of the whole room by convection.
- the present invention thus, relates to an electrical heater, which comprised of a casing, heating elements and a reflecting plate whose reflecting face directly towards *the heating elements, wherein the heating elements are ranked at a distance and passed through the aligned apertures on the heating conducting plates made of heat-resistant materials in the case.
- the present invention can heat partial space quickly. Based on the principle that the air ascends when heated and descends when refrigerated, the radiant conductive sheets made of strong heat-resistant material will make the air in the electrical heater convect vertically. The room temperature will rise by continuous cycling of heat. As the radiant conductive sheets do not require hollow columns and thermal conducting oil, the heater has the advantage of simple and compact structure, lighter weight and lower cost.
- the present invention relates to an electrical heater, which comprises a case 1, in which heating elements 11 and a reflecting plate 14 are located.
- the heating elements 11 can be infrared heating elements, halogen heating elements or other elements that can transform electricity energy into heat.
- the case 1 comprises left side cover 2, right side cover 3, upper cover 4, and lower cover 5.
- the reflective surface of the reflecting plate 14 is located towards the heating elements.
- the heat-resistant material can be stainless steel, copper, aluminum or other nonmetal heat-resistant material.
- the joint rods 13 pass through the radiant conductive sheets 12, as shown in FIG.5 , and the two ends of the joint rods 13 are bolted with left side cover 2 and right side cover 3.
- the radiant conductive sheets 12 are fixed on the case 1, as shown in FIG.3 and FIG4 .
- the heating elements 11 rank at a distance, and pass through the aligned apertures 19 opened in the radiant conductive sheets 12.
- the inner diameter of the aligned apertures 19 is bigger than the outer diameter of the heating elements 11.
- the space between the aligned apertures 19 and the heating elements 11 not only makes the heating elements 11 operate normally, avoiding the damage caused by the hot and expanding radiant conductive sheets, but also produce enough vertical convection.
- the radiant conductive sheets 12 can be either rectangle or other shape fitted with the shape of the case 1, even irregular shape. There can be various diversion grooves and corrugations on the radiant conductive sheets 12 to strengthen heat radiation and vertical convection.
- the radiant conductive sheets 12 pass through the open aligned apertures in the reflecting plate 14 and are inserted in the grooves on the case 1. So the radiant conductive sheets are fixed in the case 1 without joint rods 13.
- the other structures are the same as example 1.
- the aligned apertures 19 opened in the radiant conductive sheet 12 can be sealed as circular ones or non-sealed slots.
- the other structures are the same as example 1 of exploitation.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electric Stoves And Ranges (AREA)
- Central Heating Systems (AREA)
- Direct Air Heating By Heater Or Combustion Gas (AREA)
- Resistance Heating (AREA)
- Surface Heating Bodies (AREA)
Description
- The present invention relates to heating equipment, and in particular to an electrical heater for indoor use.
- With people's living standard steadily improving, more and more families are using electrical heaters. The existing electrical heaters comprise a case and heating elements with two major kinds of structures.
- One has a reflecting plate located in the case, which radiates heat produced by heating elements to heat and warm a limited space. Some electrical heaters of this kind have a fan in the case. The electrical heaters of this structure can only raise the temperature of a partial space. After the heaters have been switched on for some time, even the temperature of the partial space rises very high, temperature of the other parts in the same room is raised little. People will still feel cold when they leave the heated space for the other part of the room. The electrical heaters of this structure can only heat a limited space and a lot of heat energy is wasted with low effect.
- Another kind of heater is equipped with radiator in its case, in which there are hollow columns. The hollow columns are filled with thermal conducting oil. When the oil is heated, it floats up. The heat produced by heating elements will make the heat circulate in the columns. A large quantity of heat will spread to the air indoor to raise the temperature of the whole room by convection of the radiator via the top of it. But the heater of this structure increases temperature slowly. People can feel warm only after it has been switched on for a long time. The structure of the heater is complicated, bulky and too heavy to move easily. And the cost of the heater is also comparatively higher for it is filled with thermal conducting oil and then strict hermetic seal is required.
-
UK Patent 981,150 -
UK Patent 981,150 UK Patent 981,150 - The present invention provides a heater with simple and compact structure, lighter weight and lower cost, which not only raises the temperature of the partial space rapidly by radiation but also raises the temperature of the whole room by convection.
- The present invention, thus, relates to an electrical heater, which comprised of a casing, heating elements and a reflecting plate whose reflecting face directly towards *the heating elements, wherein the heating elements are ranked at a distance and passed through the aligned apertures on the heating conducting plates made of heat-resistant materials in the case.
- Because there is a reflecting plate in the present invention, by the radiation of the reflecting plate, the present invention can heat partial space quickly. Based on the principle that the air ascends when heated and descends when refrigerated, the radiant conductive sheets made of strong heat-resistant material will make the air in the electrical heater convect vertically. The room temperature will rise by continuous cycling of heat. As the radiant conductive sheets do not require hollow columns and thermal conducting oil, the heater has the advantage of simple and compact structure, lighter weight and lower cost.
- The invention is described in great detail as follows with reference to the attached figures and exploiting examples.
-
-
FIG.1 is a perspective view of an electrical heater according to the invention. -
FIG.2 is the internal structure of the electrical heater. -
FIG.3 is an end view ofFIG.2 taken in the direction of arrow B -
FIG.4 is a cross-section view along the line A-A inFIG.1 . - FIGS illustrates an embodiment of the radiant conductive sheets connecting with joint rods.
-
FIG.6 illustrates an embodiment of the aligned apertures opened in the radiant conductive sheets. -
FIG.7 illustrates another embodiment of the aligned apertures (slots) opened in the radiant conductive sheets. - The present invention relates to an electrical heater, which comprises a case 1, in which heating elements 11 and a
reflecting plate 14 are located. The heating elements 11 can be infrared heating elements, halogen heating elements or other elements that can transform electricity energy into heat. The case 1 comprisesleft side cover 2,right side cover 3,upper cover 4, andlower cover 5. The reflective surface of the reflectingplate 14 is located towards the heating elements. There are radiantconductive sheets 12 manufactured with heat-resistant material in the case. The heat-resistant material can be stainless steel, copper, aluminum or other nonmetal heat-resistant material. Thejoint rods 13 pass through the radiantconductive sheets 12, as shown inFIG.5 , and the two ends of thejoint rods 13 are bolted withleft side cover 2 andright side cover 3. Therefore the radiantconductive sheets 12 are fixed on the case 1, as shown inFIG.3 andFIG4 . The heating elements 11 rank at a distance, and pass through thealigned apertures 19 opened in the radiantconductive sheets 12. The inner diameter of the alignedapertures 19 is bigger than the outer diameter of the heating elements 11. There is always a space of about 0.5mm-5mm between inner edge of the alignedapertures 19 and outer edge of the heating elements 11. The space between thealigned apertures 19 and the heating elements 11 not only makes the heating elements 11 operate normally, avoiding the damage caused by the hot and expanding radiant conductive sheets, but also produce enough vertical convection. The radiantconductive sheets 12 can be either rectangle or other shape fitted with the shape of the case 1, even irregular shape. There can be various diversion grooves and corrugations on the radiantconductive sheets 12 to strengthen heat radiation and vertical convection. - There is also a metal protecting
mesh 18 as shown inFIG.1 andFIG.4 to prevent the user from touching high-temperature heater carelessly. - There are grooves on the case 1. The radiant
conductive sheets 12 pass through the open aligned apertures in the reflectingplate 14 and are inserted in the grooves on the case 1. So the radiant conductive sheets are fixed in the case 1 withoutjoint rods 13. The other structures are the same as example 1. - The
aligned apertures 19 opened in the radiantconductive sheet 12 can be sealed as circular ones or non-sealed slots. The other structures are the same as example 1 of exploitation.
Claims (3)
- An electrical heater comprising a casing (1), a plurality of heat conducting plates (12) for upwardly directing convection heated air, the plates (12) being made of strong heat resistant material and being mounted within the casing (1), the plates being connected together in spaced-apart relationship by mounting means (13), and a plurality of spaced electrical heating elements (11) positioned within the casing (1) with each electrical heating element (11) passing through aligned apertures (19) formed in the heat conducting plates (12), whereby the apertures (19) in the heat conducting plates (12) H are dimensioned such that there is a space between the inner periphery of each aperture (19) and the outer surface of the electrical heating element (11), the electrical heater also comprising a reflecting plate located within the casing, characterised in that the reflecting plate has a reflective face directed towards the electrical heating elements (11).
- An electrical heater according to claim 1, in which the apertures (19) are slots opening to an edge of one or more plates (12).
- An electrical heater according to claim 1, in which the mounting means comprise connecting rods (13) passing through the plates (12) and secured in the casing (1).
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN00252074 | 2000-11-21 | ||
CN00252074 | 2000-11-21 | ||
CN01224278 | 2001-05-23 | ||
CN01224278U CN2479402Y (en) | 2000-11-21 | 2001-05-23 | Electric radiator |
PCT/CN2001/000976 WO2002042694A1 (en) | 2000-11-21 | 2001-06-18 | Electric radiator |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1367337A1 EP1367337A1 (en) | 2003-12-03 |
EP1367337A4 EP1367337A4 (en) | 2004-09-15 |
EP1367337B1 true EP1367337B1 (en) | 2013-04-03 |
Family
ID=25740086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01973954A Expired - Lifetime EP1367337B1 (en) | 2000-11-21 | 2001-06-18 | Electric radiator |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1367337B1 (en) |
JP (1) | JP4570123B2 (en) |
KR (1) | KR100623741B1 (en) |
CN (1) | CN2479402Y (en) |
AU (2) | AU2001293615A1 (en) |
CA (1) | CA2429278C (en) |
NZ (1) | NZ515623A (en) |
WO (1) | WO2002042694A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20303515U1 (en) * | 2003-03-04 | 2003-09-11 | Kolar Renato | radiator |
CN102102885B (en) * | 2009-12-16 | 2013-06-05 | 先锋电器集团有限公司 | Circulating and reflecting electric heater |
US20130062336A1 (en) * | 2011-09-12 | 2013-03-14 | Ji Yong Zhang | Heater |
CN108151130A (en) * | 2017-12-22 | 2018-06-12 | 珠海格力电器股份有限公司 | Far infrared electric heater reflecting plate structure and far infrared electric heater |
US11395374B2 (en) | 2018-07-06 | 2022-07-19 | Ningbo Youming Electrical Appliance Co., Ltd. | Infrared heating mechanism and device |
CN112804849A (en) * | 2021-03-18 | 2021-05-14 | 陶保伟 | Microwave communication equipment with automatic heat dissipation function |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE544403C (en) * | 1926-12-23 | 1932-02-18 | Julius Pintsch Akt Ges | Electrical heating element with one or more flat heating elements with a heat-distributing, rib-shaped body pushed over |
FR792354A (en) * | 1934-07-27 | 1935-12-30 | Manuf Generale Metallurg | heat exchanger element |
GB981150A (en) * | 1961-07-01 | 1965-01-20 | John Salkeld Clementson | Improvements in or relating to electric convection heating elements |
FR1604371A (en) * | 1968-10-01 | 1971-11-08 | ||
FR2398266A1 (en) * | 1977-07-22 | 1979-02-16 | Mosnier De Perault Dubreuil | Electric heating and ionisation radiator - has ventilated frame with photon emitter and heat source in bottom part |
JPS58198635A (en) * | 1982-05-14 | 1983-11-18 | Matsushita Electric Works Ltd | Natural convection type room heater |
CN2099951U (en) * | 1990-10-11 | 1992-03-25 | 哈尔滨建筑工程学院 | Finned pipe convection radiator using high-frequency welding |
CN2179683Y (en) * | 1993-12-16 | 1994-10-12 | 杭州保安器厂 | Liquid electrical heater with radiating fin |
RU2107412C1 (en) * | 1996-11-28 | 1998-03-20 | Конструкторское Бюро Общего Машиностроения | Electric convector |
CN2371500Y (en) * | 1998-11-11 | 2000-03-29 | 徐慧玖 | Water controllable full-automatic infrared electric heating shower |
CN2356271Y (en) * | 1998-11-13 | 1999-12-29 | 侯锡武 | Super heat-conductive medium electric central heating |
-
2001
- 2001-05-23 CN CN01224278U patent/CN2479402Y/en not_active Expired - Lifetime
- 2001-06-18 JP JP2002544590A patent/JP4570123B2/en not_active Expired - Fee Related
- 2001-06-18 CA CA002429278A patent/CA2429278C/en not_active Expired - Fee Related
- 2001-06-18 EP EP01973954A patent/EP1367337B1/en not_active Expired - Lifetime
- 2001-06-18 AU AU2001293615A patent/AU2001293615A1/en not_active Abandoned
- 2001-06-18 WO PCT/CN2001/000976 patent/WO2002042694A1/en not_active Application Discontinuation
- 2001-06-18 KR KR1020047002104A patent/KR100623741B1/en not_active IP Right Cessation
- 2001-11-21 AU AU91460/01A patent/AU784851B2/en not_active Expired
- 2001-11-21 NZ NZ515623A patent/NZ515623A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JP4570123B2 (en) | 2010-10-27 |
AU9146001A (en) | 2002-05-23 |
AU784851B2 (en) | 2006-07-06 |
CN2479402Y (en) | 2002-02-27 |
NZ515623A (en) | 2003-03-28 |
CA2429278A1 (en) | 2002-05-30 |
KR100623741B1 (en) | 2006-09-14 |
KR20040036704A (en) | 2004-04-30 |
EP1367337A1 (en) | 2003-12-03 |
EP1367337A4 (en) | 2004-09-15 |
AU2001293615A1 (en) | 2002-06-03 |
WO2002042694A1 (en) | 2002-05-30 |
JP2004526114A (en) | 2004-08-26 |
CA2429278C (en) | 2007-03-13 |
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