CA2429278C - Electric radiator - Google Patents
Electric radiator Download PDFInfo
- Publication number
- CA2429278C CA2429278C CA002429278A CA2429278A CA2429278C CA 2429278 C CA2429278 C CA 2429278C CA 002429278 A CA002429278 A CA 002429278A CA 2429278 A CA2429278 A CA 2429278A CA 2429278 C CA2429278 C CA 2429278C
- Authority
- CA
- Canada
- Prior art keywords
- air
- heating element
- heater according
- heating
- casing
- 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 - Fee Related
Links
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
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)
Abstract
This invention relates to an electric radiator which can overcome the disadvantage of the prior art which heat area is limited and heat speed is slow and the structure is complicated. The radiator has a reflecting plate a nd flow deflectors. A part in room space can be heated rapidly by the radiation of the reflecting plate. The temperature in whole room space is increased by vertical convection caused by flow deflectors. This invention has simple and compact structure, lighter weight, and lower cost.
Description
ELECTRIC RADIATOR
Field of the Invention The present invention relates to heating equipment, and in particular to an electrical heater for indoor use.
Background of the Invention With people's living standards steadily improving, more and more families are using portable electrical heaters. Existing portable electrical heaters can generally be categorized into one of two forms.
The iarst kind has a reflector located in the body. The reflector radiates heat energy produced by heating elements to heat and warm the local space. Some electrical heaters of this kind also have a fan in the body. However, electrical heaters of this kind only raise the temperature within the immediate surrounding space. When the heaters are switched on for some time, even if the temperature of the local space is increased significantly, the space temperature of other parts in the same room are only marginally raised. People will still feel cold when they leave the heated local space for another part of the room. The electrical heaters of this kind can just heat the limited space, and then a lot of heat energy is wasted with a low heat effect.
A second kind of heater has a body formed of a series of hollow columns. The hollow columns are interconnected to form a chamber. This chamber is filled with oil which has good thermal conductivity properties. The oil is heated by a heating element generally situated at the bottom of the heater. This causes the oil in the heater to circulate due to convection so that the oil in the columns is evenly heated.
The large surface area of the columns transfers heat to the surrounding air which in turn rises and initiates a convection current in the room. However, this form of electrical heater heats slowly and it takes a long time after switching on for people to feel warm.
Furthermore, the heater itself is big, heavy, and difficult to move. And, since the columns are filled with oil, high hermetic sealing is required, resulting in relatively high manufacturing costs.
It is an object of the present invention to overcome or ameliorate at least one of the disadvantages of the prior art, or to provide a useful alternative.
Accordingly, the present invention may be considered as providing an electrical heater for heating a space by means of radiant heating and convective heating, the heater comprising a casing, the casing including: a body compartment; a heating element within the compartment; a reflector having a reflective surface facing the heating element; and a spaced array of radiant conductive fins of a heat-tolerant material disposed within the compartment so that the heating element passes through apertures in the fins.
Furthermore, the present invention may be considered as providing an electric heater comprising: a casing having a body compartment, an air inlet for the ingress of air to the compartment and an outlet for the egress of air from the compartment;
a plurality of spaced radiant conductive fins in the compartment, the fins defining an air heating channel between each two of the radiant conductive fins, the air heating channels aligned between the air inlet and the air outlet for guiding air to flow along the air heating channels from the air inlet to the air outlet; an electrical heating element, for electrical connection to a power source, the heating element being transversely extended through the radiant conductive fins; and a heat reflector, having a heat reflecting surface, disposed within the compartment at a position transversely extended from the radiant conductive fins at side edges thereof; wherein when the heating element generates heat, such heat is distributed through the radiant conductive fins in a planar manner for heating the air within the air heating channels so as to create heat flows therewithin to outside through the air outlet.
Advantageously, at least in a preferred form, the radiation from the reflector quickly heats the required space. Furthermore, the radiant conductive sheets manufactured with a heat-resistant material advantageously exploit the principle that air will rise when heated and fall as it cools, thus starting a convection flow and thereby exchanging heat in a vertical way. This cycle heats the air in the room and raises the temperature of the whole room.
Field of the Invention The present invention relates to heating equipment, and in particular to an electrical heater for indoor use.
Background of the Invention With people's living standards steadily improving, more and more families are using portable electrical heaters. Existing portable electrical heaters can generally be categorized into one of two forms.
The iarst kind has a reflector located in the body. The reflector radiates heat energy produced by heating elements to heat and warm the local space. Some electrical heaters of this kind also have a fan in the body. However, electrical heaters of this kind only raise the temperature within the immediate surrounding space. When the heaters are switched on for some time, even if the temperature of the local space is increased significantly, the space temperature of other parts in the same room are only marginally raised. People will still feel cold when they leave the heated local space for another part of the room. The electrical heaters of this kind can just heat the limited space, and then a lot of heat energy is wasted with a low heat effect.
A second kind of heater has a body formed of a series of hollow columns. The hollow columns are interconnected to form a chamber. This chamber is filled with oil which has good thermal conductivity properties. The oil is heated by a heating element generally situated at the bottom of the heater. This causes the oil in the heater to circulate due to convection so that the oil in the columns is evenly heated.
The large surface area of the columns transfers heat to the surrounding air which in turn rises and initiates a convection current in the room. However, this form of electrical heater heats slowly and it takes a long time after switching on for people to feel warm.
Furthermore, the heater itself is big, heavy, and difficult to move. And, since the columns are filled with oil, high hermetic sealing is required, resulting in relatively high manufacturing costs.
It is an object of the present invention to overcome or ameliorate at least one of the disadvantages of the prior art, or to provide a useful alternative.
Accordingly, the present invention may be considered as providing an electrical heater for heating a space by means of radiant heating and convective heating, the heater comprising a casing, the casing including: a body compartment; a heating element within the compartment; a reflector having a reflective surface facing the heating element; and a spaced array of radiant conductive fins of a heat-tolerant material disposed within the compartment so that the heating element passes through apertures in the fins.
Furthermore, the present invention may be considered as providing an electric heater comprising: a casing having a body compartment, an air inlet for the ingress of air to the compartment and an outlet for the egress of air from the compartment;
a plurality of spaced radiant conductive fins in the compartment, the fins defining an air heating channel between each two of the radiant conductive fins, the air heating channels aligned between the air inlet and the air outlet for guiding air to flow along the air heating channels from the air inlet to the air outlet; an electrical heating element, for electrical connection to a power source, the heating element being transversely extended through the radiant conductive fins; and a heat reflector, having a heat reflecting surface, disposed within the compartment at a position transversely extended from the radiant conductive fins at side edges thereof; wherein when the heating element generates heat, such heat is distributed through the radiant conductive fins in a planar manner for heating the air within the air heating channels so as to create heat flows therewithin to outside through the air outlet.
Advantageously, at least in a preferred form, the radiation from the reflector quickly heats the required space. Furthermore, the radiant conductive sheets manufactured with a heat-resistant material advantageously exploit the principle that air will rise when heated and fall as it cools, thus starting a convection flow and thereby exchanging heat in a vertical way. This cycle heats the air in the room and raises the temperature of the whole room.
Brief Description of the Drawings A preferred embodiment of the invention will now be described, by way of example only, with reference to the accompanying drawings in which:
Fig. 1 is a perspective view of an electrical heater according to the present invention;
Fig. 2 is an enlarged view showing the heating elements of the heater in Fig.
1;
Fig. 3 is an end view of Fig. 2 from direction B;
Fig. 4 is a cross-sectional view along the line A-A in Fig. 1;
Fig. 5 is a detailed view illustrating an embodiment of the connection between the radiant conductive sheets and the link rods;
Fig. 6 is an end view illustrating an embodiment having apertures opened in the radiant conductive sheets; and Fig. 7 is another end view illustrating another embodiment having slots opened in the radiant conductive sheets.
Detailed Description of the Preferred Embodiment The present invention, thus, relates to an electrical heater, which comprises a casing 1, defining a compartment for receiving heating elements 11 and a reflector 14.
The heating elements 1i could be infrared heating elements, or be halogen heating elements, or other elements transforming electrical energy into heat.
The casing 1 comprises left side covers 2, right side covers 3, upper cover 4, and lower cover 5. An air outlet 18 is located at or near a top portion of the casing and an air inlet 22 may be located at or near a bottom portion of the casing. A
reflector 14 is located so that a curved surface thereof faces towards the heating elements.
The curved surface of the reflector 14 has a predetermined curvature of a concave shape, or may include several such adjacent surfaces as shown in Figures 2a and 3.
The electric heater may be mounted for movement across a floor by way of castors 21.
An open side of the casing, opposite the reflector, is left uncovered so that the internals of the heater are exposed and heat may be radiated from the heater.
A
safety mesh, as shown in Fig. 1 and Fig. 4, screens the high temperature heater internals from being inadvertently touched. This open side may also function either partially or wholly as the air inlet and/or outlet.
A spaced array of radiant conductive fins 12 formed from radiant conductive sheets manufactured with a heat-tolerant material, partitions the compartment into a series of air heating channels. The fins 12 are supported in the compartment in a vertically parallel manner via a plurality of transverse link rods 13. As such, the air heating channels are also vertically configured for guiding the air to be heated by the radiant conductive fins in an upwardly flow towards the air outlet.
By ~~heat-tolerant" it is meant that the sheets are manufactured from a material which does not change its chemical or physical properties substantially, within the operating temperature of the heater. Suitable radiant conductive, heat-tolerant materials include stainless steel, copper, aluminum, a heat-resistant nonmetal and etc.
as such, each of the radiant conductive fins 12 is capable of transferring heat from one region to another region through conduction. It is worthwhile mentioning that conduction ofthe radiant conductive fins 12 occurs between regions thereof at different temperatures.
The link rods 13 pass through the radiant conductive fins 12, as shown in Fig.
5. The two ends of the link rods 13 are bolt connected with left and right side covers 2 and 3; therefore, the radiant conductive fins 12 are fixed in the casing 1, as shown in Fig. 3 and Fig. 4. The heating elements 11 rank at a distance, and pass through the holes or apertures 19 provided in the fins 12. The inner diameter of the holes 19 is greater than the outer diameter of the heating elements ll. There always is a space or gap of about 0.5mm - 5mm between the inner edge of the holes 19 and the outer edge or surface of the heating elements 11. This gap is large enough to prevent the possibility of any damage caused due to interference between the hot, expanding fins and heating elements 11, but is small enough to provide adequate heat transfer to the fins from the elements.
The fins 12 are generally rectangular but may be any other shape fitted with the shape of the casing 1, even an irregular shape. There can be various diversion-grooves and corrugations on the fins 12 to focus the radiation heat and the vertical convection.
In one embodiment of the invention there are grooves on the casing 1. The fins 12 pass through the opening in the reflector 14, and are inserted in the grooves on the casing 1 and fixed in the casing 1 without link rods 13. The other structural features are unchanged.
In a further embodiment of the invention the holes 19 provided in the fins 12 can be circular sealed, or non-sealed slots. Vertically extending slots 19' adjacent the edges of a fin are shown in Fig. 6 with heating elements 11 located therein.
Horizontally extending slots 19" extending inwardly from side edges of a fin are shown in Fig. 7 with heating elements 11 located therein.
In operation, with the heater connected to a source of electrical energy and switched on, the heating elements 11 radiate heat energy. Radiant heat energy is radiated out of the heater both directly, and indirectly reflected from the reflector at the rear of the heater. Advantageously, this radiant energy provides immediate and localized warming to the heater surroundings.
In addition, the radiant energy is absorbed by the radiant conductive fins 12 and heat is conducted throughout the fins from high temperature areas adjacent to the heating elements to lower temperature areas remote from the heating elements.
The combined effect of heat transfer to the air from the radiant conductive fins, and both directly and indirectly form the heating elements by conduction and radiation through the air, causes the air in the channels to become warm. As this occurs, the air warming in the channels rises and exits the heater through the air outlet 18.
This air displacement causes cooler air to be drawn into the heater from the bottom primarily through the air inlet 22 but also through the open side. As a result, a convection motion is initiated and heater may advantageously provide far reaching heating to a room.
Although the invention has been described with reference to specific examples it will be appreciated by those skilled in the art that the invention may be embodied in many other forms.
Fig. 1 is a perspective view of an electrical heater according to the present invention;
Fig. 2 is an enlarged view showing the heating elements of the heater in Fig.
1;
Fig. 3 is an end view of Fig. 2 from direction B;
Fig. 4 is a cross-sectional view along the line A-A in Fig. 1;
Fig. 5 is a detailed view illustrating an embodiment of the connection between the radiant conductive sheets and the link rods;
Fig. 6 is an end view illustrating an embodiment having apertures opened in the radiant conductive sheets; and Fig. 7 is another end view illustrating another embodiment having slots opened in the radiant conductive sheets.
Detailed Description of the Preferred Embodiment The present invention, thus, relates to an electrical heater, which comprises a casing 1, defining a compartment for receiving heating elements 11 and a reflector 14.
The heating elements 1i could be infrared heating elements, or be halogen heating elements, or other elements transforming electrical energy into heat.
The casing 1 comprises left side covers 2, right side covers 3, upper cover 4, and lower cover 5. An air outlet 18 is located at or near a top portion of the casing and an air inlet 22 may be located at or near a bottom portion of the casing. A
reflector 14 is located so that a curved surface thereof faces towards the heating elements.
The curved surface of the reflector 14 has a predetermined curvature of a concave shape, or may include several such adjacent surfaces as shown in Figures 2a and 3.
The electric heater may be mounted for movement across a floor by way of castors 21.
An open side of the casing, opposite the reflector, is left uncovered so that the internals of the heater are exposed and heat may be radiated from the heater.
A
safety mesh, as shown in Fig. 1 and Fig. 4, screens the high temperature heater internals from being inadvertently touched. This open side may also function either partially or wholly as the air inlet and/or outlet.
A spaced array of radiant conductive fins 12 formed from radiant conductive sheets manufactured with a heat-tolerant material, partitions the compartment into a series of air heating channels. The fins 12 are supported in the compartment in a vertically parallel manner via a plurality of transverse link rods 13. As such, the air heating channels are also vertically configured for guiding the air to be heated by the radiant conductive fins in an upwardly flow towards the air outlet.
By ~~heat-tolerant" it is meant that the sheets are manufactured from a material which does not change its chemical or physical properties substantially, within the operating temperature of the heater. Suitable radiant conductive, heat-tolerant materials include stainless steel, copper, aluminum, a heat-resistant nonmetal and etc.
as such, each of the radiant conductive fins 12 is capable of transferring heat from one region to another region through conduction. It is worthwhile mentioning that conduction ofthe radiant conductive fins 12 occurs between regions thereof at different temperatures.
The link rods 13 pass through the radiant conductive fins 12, as shown in Fig.
5. The two ends of the link rods 13 are bolt connected with left and right side covers 2 and 3; therefore, the radiant conductive fins 12 are fixed in the casing 1, as shown in Fig. 3 and Fig. 4. The heating elements 11 rank at a distance, and pass through the holes or apertures 19 provided in the fins 12. The inner diameter of the holes 19 is greater than the outer diameter of the heating elements ll. There always is a space or gap of about 0.5mm - 5mm between the inner edge of the holes 19 and the outer edge or surface of the heating elements 11. This gap is large enough to prevent the possibility of any damage caused due to interference between the hot, expanding fins and heating elements 11, but is small enough to provide adequate heat transfer to the fins from the elements.
The fins 12 are generally rectangular but may be any other shape fitted with the shape of the casing 1, even an irregular shape. There can be various diversion-grooves and corrugations on the fins 12 to focus the radiation heat and the vertical convection.
In one embodiment of the invention there are grooves on the casing 1. The fins 12 pass through the opening in the reflector 14, and are inserted in the grooves on the casing 1 and fixed in the casing 1 without link rods 13. The other structural features are unchanged.
In a further embodiment of the invention the holes 19 provided in the fins 12 can be circular sealed, or non-sealed slots. Vertically extending slots 19' adjacent the edges of a fin are shown in Fig. 6 with heating elements 11 located therein.
Horizontally extending slots 19" extending inwardly from side edges of a fin are shown in Fig. 7 with heating elements 11 located therein.
In operation, with the heater connected to a source of electrical energy and switched on, the heating elements 11 radiate heat energy. Radiant heat energy is radiated out of the heater both directly, and indirectly reflected from the reflector at the rear of the heater. Advantageously, this radiant energy provides immediate and localized warming to the heater surroundings.
In addition, the radiant energy is absorbed by the radiant conductive fins 12 and heat is conducted throughout the fins from high temperature areas adjacent to the heating elements to lower temperature areas remote from the heating elements.
The combined effect of heat transfer to the air from the radiant conductive fins, and both directly and indirectly form the heating elements by conduction and radiation through the air, causes the air in the channels to become warm. As this occurs, the air warming in the channels rises and exits the heater through the air outlet 18.
This air displacement causes cooler air to be drawn into the heater from the bottom primarily through the air inlet 22 but also through the open side. As a result, a convection motion is initiated and heater may advantageously provide far reaching heating to a room.
Although the invention has been described with reference to specific examples it will be appreciated by those skilled in the art that the invention may be embodied in many other forms.
Claims (27)
1. An electrical heater for heating a space by means of radiant heating and convective heating, said heater comprising a casing, said casing including:
a body compartment;
a heating element within said compartment;
a reflector having a reflective surface facing the heating element; and a spaced array of radiant conductive fins of a heat-tolerant material disposed within said compartment so that the heating element passes through apertures in the fins.
a body compartment;
a heating element within said compartment;
a reflector having a reflective surface facing the heating element; and a spaced array of radiant conductive fins of a heat-tolerant material disposed within said compartment so that the heating element passes through apertures in the fins.
2. The electrical heater according to claim 1, wherein said radiant conductive fins define an air heating channel between each two of said radiant conductive fins.
3. The electrical heater according to claim 1 or claim 2, wherein said casing includes an air inlet and an air outlet, said inlet and outlet being disposed to promote convection airflow through said casing when said heater is in use.
4. The electrical heater according to claim 3, wherein said inlet and outlet are positioned at respective bottom and top portions of said casing and each of said air heating channels is aligned between said air inlet and said air outlet for guiding air to flow along said air heating channels from said air inlet to said air outlet.
5. The electrical heater according to any one of claims 1 to 4, wherein said casing includes an open side allowing heat to directly radiate from the heater.
6. The electrical heater according to claim 5, wherein said open side is disposed opposite said reflector such that heat radiated from the heating element may be reflected by said reflector through said opening out of said heater.
7. The electrical heater according to any one of claims 1 to 6, wherein the diameter of the apertures is greater than the outer diameter of the heating element so that the heating element does not contact the fins.
8. The electrical heater according to any one of claims 1 to 7, wherein the heating element transforms electrical energy into heat.
9. The electrical heater according to claim 8, wherein the heating element is an infrared heating element.
10. The electrical heater according to claim 8, wherein the heating element is a resistance heating element.
11. The electrical heater according to claim 8, wherein the heating element is a halogen heating element.
12. The electrical heater according to any one of claims 1 to 11, wherein said heating element includes a plurality of spaced heating elements.
13. The electrical heater according to any one of claims 1 to 12, wherein the apertures formed in the radiant conductive fins are in the form of slots.
14. The electrical heater according to any one of claims 1 to 13, wherein spaced grooves in the casing are disposed to receive and locate the radiant conductive fins thereby securing them within the heater.
15. The electrical heater according to any one of claims 1 to 14, wherein the radiant conductive fins are connected by link rods fixed to the casing.
16. An electric heater comprising:
a casing having a body compartment, an air inlet for the ingress of air to said compartment and an outlet for the egress of air from said compartment;
a plurality of spaced radiant conductive fins in said compartment, said fins defining an air heating channel between each two of said radiant conductive fins, said air heating channels aligned between said air inlet and said air outlet for guiding air to flow along said air heating channels from said air inlet to said air outlet;
an electrical heating element, for electrical connection to a power source, said heating element being transversely extended through said radiant conductive fins; and a heat reflector, having a heat reflecting surface, disposed within said compartment at a position transversely extended from said radiant conductive fins at side edges thereof;
wherein when said heating element generates heat, said heat is distributed through said radiant conductive fins in a planar manner for heating said air within said air heating channels so as to create heat flows therewithin to outside through said air outlet.
a casing having a body compartment, an air inlet for the ingress of air to said compartment and an outlet for the egress of air from said compartment;
a plurality of spaced radiant conductive fins in said compartment, said fins defining an air heating channel between each two of said radiant conductive fins, said air heating channels aligned between said air inlet and said air outlet for guiding air to flow along said air heating channels from said air inlet to said air outlet;
an electrical heating element, for electrical connection to a power source, said heating element being transversely extended through said radiant conductive fins; and a heat reflector, having a heat reflecting surface, disposed within said compartment at a position transversely extended from said radiant conductive fins at side edges thereof;
wherein when said heating element generates heat, said heat is distributed through said radiant conductive fins in a planar manner for heating said air within said air heating channels so as to create heat flows therewithin to outside through said air outlet.
17. The electric heater according to claim 16, wherein said inlet is disposed at a bottom portion of said casing and said air outlet is disposed at a top portion of said casing.
18. The electric heater according to claim 17, wherein said casing includes an open side allowing heat to directly radiate from the heater.
19. The electric heater according to claim 18, wherein said open side includes said inlet.
20. The electric heater according to any one of claims 16 to 19, wherein said radiant conductive fins are spacedly supported in said compartment in a vertically parallel manner, wherein each of said air heating channels is formed between each two said radiant conductive fins for allowing said air to be heated within said air heating channels and to flow upwardly towards said air outlet of said casing.
21. The electric heater according to any one of claims 16 to 20, wherein said heating element passes through an aperture formed in said radiant conductive fins, wherein each of said apertures has a diameter slightly greater than a diameter of said heating element such that when said heating element passes through said aperture a gap is formed between a circumferential edge of the aperture and an outer circumferential surface of said heating element.
22. The electric heater according to any one of claims 16 to 20, wherein said heating element passes through an elongated slot formed in respective radiant conductive fins, wherein each said slot extends vertically to the edge of the respective radiant conductive fin.
23. The electric heater according to any one of claims 16 to 20, wherein said heating element passes through an elongated slot formed in respective radiant conductive fins, wherein each said slot extends sidewardly on the respective radiant conductive fin to form an opening at a side edge of the respective radian conductive fin.
24. The electric heater according to any one of claims 16 to 23, further comprising spaced grooves in the casing disposed to receive and locate the radiant conductive fins, thereby securing them within the heater.
25. The electric heater according to any one of claims 16 to 24, wherein the radiant conductive fins are connected by link rods fixed to the casing.
26. The electric heater according to any one of claims 16 to 25, wherein said heat reflecting surface of said heat reflector includes a concave shape of a predetermined curvature.
27. The electric heater according to any one of claims 16 to 26, wherein said heating element includes a plurality of spaced heating elements.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00252074.5 | 2000-11-21 | ||
| CN00252074 | 2000-11-21 | ||
| CN01224278.0 | 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 (2)
| Publication Number | Publication Date |
|---|---|
| CA2429278A1 CA2429278A1 (en) | 2002-05-30 |
| CA2429278C true CA2429278C (en) | 2007-03-13 |
Family
ID=25740086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002429278A Expired - Fee Related CA2429278C (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, Maribor | 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 CA CA002429278A patent/CA2429278C/en not_active Expired - Fee Related
- 2001-06-18 KR KR1020047002104A patent/KR100623741B1/en not_active IP Right Cessation
- 2001-06-18 AU AU2001293615A patent/AU2001293615A1/en not_active Abandoned
- 2001-06-18 JP JP2002544590A patent/JP4570123B2/en not_active Expired - Fee Related
- 2001-06-18 EP EP01973954A patent/EP1367337B1/en not_active Expired - Lifetime
- 2001-06-18 WO PCT/CN2001/000976 patent/WO2002042694A1/en not_active Application Discontinuation
- 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 |
|---|---|
| EP1367337A1 (en) | 2003-12-03 |
| EP1367337A4 (en) | 2004-09-15 |
| CN2479402Y (en) | 2002-02-27 |
| AU784851B2 (en) | 2006-07-06 |
| AU2001293615A1 (en) | 2002-06-03 |
| WO2002042694A1 (en) | 2002-05-30 |
| KR20040036704A (en) | 2004-04-30 |
| NZ515623A (en) | 2003-03-28 |
| KR100623741B1 (en) | 2006-09-14 |
| AU9146001A (en) | 2002-05-23 |
| JP2004526114A (en) | 2004-08-26 |
| JP4570123B2 (en) | 2010-10-27 |
| EP1367337B1 (en) | 2013-04-03 |
| CA2429278A1 (en) | 2002-05-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20170619 |