WO2008098316A1 - Rotary electrical heater - Google Patents
Rotary electrical heater Download PDFInfo
- Publication number
- WO2008098316A1 WO2008098316A1 PCT/BA2008/000001 BA2008000001W WO2008098316A1 WO 2008098316 A1 WO2008098316 A1 WO 2008098316A1 BA 2008000001 W BA2008000001 W BA 2008000001W WO 2008098316 A1 WO2008098316 A1 WO 2008098316A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electric
- heater
- rotary electrical
- electric motor
- electrical heater
- Prior art date
Links
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
- H05B3/78—Heating arrangements specially adapted for immersion heating
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/21—Water-boiling vessels, e.g. kettles
- A47J27/21008—Water-boiling vessels, e.g. kettles electrically heated
- A47J27/21016—Water-boiling vessels, e.g. kettles electrically heated with heating elements immersed in the water
- A47J27/21033—Water-boiling vessels, e.g. kettles electrically heated with heating elements immersed in the water with removable heating elements
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/16—Inserts
- A47J36/165—Stirring devices operatively connected to cooking vessels when being removably inserted inside
Definitions
- the invention relates to a rotary electrical heater, driven by an electric motor, classified according to the International Patent Classification (IPC) as Int. class H 05B 3/06.
- IPC International Patent Classification
- the basic problems associated with an electric heating device are: protracted period for heating fluid; and boiler scale accumulation on the surface of an electric heater, in case of water heating; wherefrom comes prolonged time for heating liquid, air and fluid in general. Therefore, the utilization of the electric heating device is not as high as it is expected concerning the fact that the electric heater has no dissipative of energy.
- a stationary electric heater is mainly used in order to heat fluids like liquid and air wherein a heating device transmits heat spontaneously or forcedly to the surroundings.
- An immersion heater in kettles and electric water heaters are the examples for spontaneous heat transmit of electric heater, wherein heat exchange is set with natural principles, and fluid to be heated is in rather gradual contact with a heat source such as a heater.
- Finned and unfinned electric air heaters in air current fans, compressors or water stream pumps are the examples of forced heat transmission of an electric heater.
- the primary goal of the invention is to improve the heat exchange intensity of electric heater to the surroundings such as working fluid.
- the electrical heater rotates inside of the working fluid and the heater's speed of fluid flow is greater than in the relatively uninterrupted fluid flow, wherein the heater's speed of fluid flow is close to zero.
- Increasing of heater's speed of fluid flow the intensity of heat exchange between a heater and fluid is increased; consequently it shortens time of fluid heating to the required temperature and it increase costs of working fluid heating.
- the secondary goal of the invention is to minimize boiler scale accumulation on the surface of an electrical heater which reduces heat resistance that characterizes all known water heating devices.
- Boiler scale accumulation on the surface of an electric heater reduces the heat exchange intensity, increases electricity costs of the same liquid amount and decreases the lifetime of electric heater and an electric device itself.
- the rotary electrical heater as the invention includes an electric motor, an electric heater, a switch, a thermostat, and an electric current cable.
- the electric motor and the electric heater are positioned and coupled together on the longitudinal axis in order to transmit a rotating moment completely from the electric motor to the electric heater.
- the electrical heater is supplied with an electric current through graphite slip rings (graphite brushes).
- the switch turns the electric current on to the electric motor and the electrical heater at the same time; therefore both elements are in operation simultaneously.
- the electric motor initiates the electric heater to rotate wherein it heats the surrounding fluid.
- the thermostat disconnects the electric circuit and stops the electric motor and the electric heater to operate.
- the thermostat depending on the specific device, could turn the rotating electric heater on and off.
- the rotary electrical heater could be installed inside a container to perform liquid heating with electric heater immersing directly into the liquid.
- the examples of this invention use are a kettle and water heater.
- the rotary electrical heater could be installed to heat the surrounding air operating with the same method as above described inside a container.
- the rotary electrical heater must be protected by a cover while air heating to prevent a direct contact with the rotating heater.
- the coaxial working wheel of axial fan could be additionally installed on the longitudinal axis of the rotating heater in order to intensify heat transmission to the surrounding air of the heater.
- Figure 1 is a schematic view of an electric heating device with the electric installation components
- Figure 2 is a schematic view of a rotating electric heating device with the upper housing.
- Figure 3 is a schematic view of a rotating electric heating device inside of the two-part housing.
- Figures 1 and 2 show the electrical assembly with a rotary electrical heater contains a switch 1 that initiates electric current flows from the main power distribution system.
- the graphite slip rings assembly 2 transmits electric current to the electric heater 3.
- a rotating moment of the electric motor 5 transmits through a mechanical coupling 6 to the electric heater 3.
- the housing 4 comprises the complete electric system with the rotating electric heater which has two-part housing, the upper part 7 includes the electric motor and electric installation, and the lower part 4 of housing contains liquid to be heated and one part of electric installation with the thermostat 8, with immersing the electric heater 3 into the liquid.
- This is the invention enables to construct the functional, cost-effective electric device that contains the very important improvements comparing to the similar electric heating devices. It could be constructed with different dimensions and profiles which depend on the purpose like electric water heaters, kettles, kitchenware heating devises (bathroom boilers, electric coffee pots, etc.) as well as air heating in a house and an office.
- the invention could be additionally intensified by the installation of working wheel of axial fan.
- the working wheel of axial fan turns with the electric heater intensifying the heat transmit to the surrounding air.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Direct Air Heating By Heater Or Combustion Gas (AREA)
Abstract
The rotary electrical heater presents the combination of the electric motor (5) and well defined a rod shaped electric heater (3), positioned with the firmly independent connection, coupling (6), on the joint longitudinal axial axis. The electric power simultaneously supplies the electric motor (5) and electric heater (3). The electric switch (1) turns on and off the electric heating heater (3), and the thermostat (8) regulates turning on and off of the electric heater (3). If required, the number of rotation of the electric heater could be regulated by potentiometer installation in order to control fluid heating speed. If required, the upper and lower housing parts could be separated, therefore the flow of the electric current goes through separable electric switch.
Description
ROTARY ELECTRICAL HEATER Technical field
The invention relates to a rotary electrical heater, driven by an electric motor, classified according to the International Patent Classification (IPC) as Int. class H 05B 3/06.
Technical problem
The basic problems associated with an electric heating device are: protracted period for heating fluid; and boiler scale accumulation on the surface of an electric heater, in case of water heating; wherefrom comes prolonged time for heating liquid, air and fluid in general. Therefore, the utilization of the electric heating device is not as high as it is expected concerning the fact that the electric heater has no dissipative of energy.
Background Art
A stationary electric heater is mainly used in order to heat fluids like liquid and air wherein a heating device transmits heat spontaneously or forcedly to the surroundings. An immersion heater in kettles and electric water heaters are the examples for spontaneous heat transmit of electric heater, wherein heat exchange is set with natural principles, and fluid to be heated is in rather gradual contact with a heat source such as a heater. Finned and unfinned electric air heaters in air current fans, compressors or water stream pumps are the examples of forced heat transmission of an electric heater.
Disclosure of Invention
The primary goal of the invention is to improve the heat exchange intensity of electric heater to the surroundings such as working fluid. The electrical heater rotates inside of the working fluid and the heater's speed of fluid flow is greater than in the relatively uninterrupted fluid flow, wherein the heater's speed of fluid flow is close to zero. Increasing of heater's speed of fluid flow, the intensity of heat exchange between a heater and fluid is increased; consequently it shortens time of fluid heating to the required temperature and it increase costs of working fluid heating.
The secondary goal of the invention is to minimize boiler scale accumulation on the surface of an electrical heater which reduces heat resistance that characterizes all known water heating devices. Boiler scale accumulation on the surface of an electric heater reduces the heat exchange intensity, increases electricity costs of the same liquid amount and decreases the lifetime of electric heater and an electric device itself.
The additional goals and benefits of the invention will be disclosed in further parts as well as with the innovation utilization.
The rotary electrical heater as the invention includes an electric motor, an electric heater, a switch, a thermostat, and an electric current cable. The electric motor and the electric heater are positioned and coupled together on the longitudinal axis in order to transmit a rotating moment completely from the electric motor to the electric heater. The electrical heater is supplied with an electric current through graphite slip rings (graphite brushes). The switch turns the electric current on to the electric motor and the electrical heater at the same time; therefore both elements are in operation simultaneously. The electric motor initiates the electric heater to rotate wherein it heats the surrounding fluid. When the required temperature is reached, the thermostat disconnects the electric circuit and stops the electric motor and the electric heater to operate. The thermostat, depending on the specific device, could turn the rotating electric heater on and off.
The rotary electrical heater could be installed inside a container to perform liquid heating with electric heater immersing directly into the liquid. The examples of this invention use are a kettle and water heater.
In addition, the rotary electrical heater could be installed to heat the surrounding air operating with the same method as above described inside a container. The rotary electrical heater must be protected by a cover while air heating to prevent a direct contact with the rotating heater. The coaxial working wheel of axial fan could be additionally installed on the longitudinal axis of the rotating heater in order to intensify heat transmission to the surrounding air of the heater.
Brief Description of Drawings
Figure 1 is a schematic view of an electric heating device with the electric installation components;
Figure 2 is a schematic view of a rotating electric heating device with the upper housing. Figure 3 is a schematic view of a rotating electric heating device inside of the two-part housing.
Best Mode for Carrying Out the Invention
Figures 1 and 2 show the electrical assembly with a rotary electrical heater contains a switch 1 that initiates electric current flows from the main power distribution system. The graphite slip rings assembly 2 transmits electric current to the electric heater 3. A rotating moment of the electric motor 5 transmits through a mechanical coupling 6 to the electric heater 3. The housing 4 comprises the complete electric system with the rotating electric heater which has two-part housing, the upper part 7 includes the electric motor and electric installation, and the lower part 4 of housing contains liquid to be heated and one part of electric installation with the thermostat 8, with immersing the electric heater 3 into the liquid.
Industrial Applicability
This is the invention enables to construct the functional, cost-effective electric device that contains the very important improvements comparing to the similar electric heating devices. It could be constructed with different dimensions and profiles which depend on the purpose like electric water heaters, kettles, kitchenware heating devises (bathroom boilers, electric coffee pots, etc.) as well as air heating in a house and an office.
Concerning air heating in a house and office the invention could be additionally intensified by the installation of working wheel of axial fan. The working wheel of axial fan turns with the electric heater intensifying the heat transmit to the surrounding air.
The experts will find out that there are lots of possibilities of modification of rotating electric heater without losing the essential purpose of the invention.
%s
Claims
1. A rotary electrical heater comprises: an electric resistant heater, an electric motor, housing, a thermostat, a connecting element of the electric heater and the electric motor, characterized by, wherein the electric heater gets the electric supply and for self-heating and rotating moment get from the electric motor.
2. The rotary electrical heater claim 1, characterized by, wherein the electric motor and the heater are supplied with electric power simultaneously when the switch is turned on.
3. The rotary electrical heater claim 2, characterized by, wherein rotating speed of the electric heater is directed by the characteristics of the electric motor and should have a certain number of rotational speeds.
4. The rotary electrical heater claim 1 or 2, characterized by, wherein the connection between the electric heater and the electric motor is firmly independent.
5. The rotary electrical heater claim 1 or 2, characterized by, wherein the electric heater is electric resistant.
6. The rotary electrical heater claim 1, 2 or 3, characterized by, wherein the working wheel of axial fan can be installed on the longitudinal axis of the rotating heater which gets the rotating moment at the same time as the electric heater.
7. The rotary electrical heater claim 1, 2 or 3, characterized by, wherein the shape of the cross section of the heater as well as the longitudinal profile of the heater could be constructed differently.
%<*£■
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7252607A | 2007-02-16 | 2007-02-16 | |
| USBAP072526A | 2007-02-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008098316A1 true WO2008098316A1 (en) | 2008-08-21 |
Family
ID=39537520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/BA2008/000001 WO2008098316A1 (en) | 2007-02-16 | 2008-02-15 | Rotary electrical heater |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2008098316A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2522896A (en) * | 2014-02-10 | 2015-08-12 | Kenwood Ltd | Novel toaster |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3147365A (en) * | 1962-03-26 | 1964-09-01 | Techne Cambridge Ltd | Thermostatically controlled immersion heater assembly |
| US3840349A (en) * | 1971-08-26 | 1974-10-08 | Du Pont | Apparatus for fractional sublimation using a rotating helical heat source |
| US6903307B1 (en) * | 2004-10-04 | 2005-06-07 | Prince Lionheart, Inc. | Hygienic wipes steamer |
-
2008
- 2008-02-15 WO PCT/BA2008/000001 patent/WO2008098316A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3147365A (en) * | 1962-03-26 | 1964-09-01 | Techne Cambridge Ltd | Thermostatically controlled immersion heater assembly |
| US3840349A (en) * | 1971-08-26 | 1974-10-08 | Du Pont | Apparatus for fractional sublimation using a rotating helical heat source |
| US6903307B1 (en) * | 2004-10-04 | 2005-06-07 | Prince Lionheart, Inc. | Hygienic wipes steamer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2522896A (en) * | 2014-02-10 | 2015-08-12 | Kenwood Ltd | Novel toaster |
| GB2522896B (en) * | 2014-02-10 | 2020-05-06 | Kenwood Ltd | Toaster |
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