CN103307644B - Induction cooker able to use solar energy and electric energy - Google Patents
Induction cooker able to use solar energy and electric energy Download PDFInfo
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- CN103307644B CN103307644B CN201210063743.4A CN201210063743A CN103307644B CN 103307644 B CN103307644 B CN 103307644B CN 201210063743 A CN201210063743 A CN 201210063743A CN 103307644 B CN103307644 B CN 103307644B
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Abstract
The invention relates to an induction cooker making mixed use of solar energy and electric energy. The induction cooker comprises: a base shell, a power supply control circuit board, an electromagnetic heating coil panel, an operation display panel, a pot, a thermistor module, a fan, a power supply socket, and base feet. The induction cooker is also provided with a solar heat transfer panel disc, which replaces a well-known induction cooker's panel. An electromagnetic heating coil panel of the induction cooker is closely attached under the solar heat transfer panel disc. The heat transfer panel disc depends on the high temperature liquid that flows and is stored in an inner cavity to heat the pot disposed on the heat transfer panel disc, and the electromagnetic heating coil panel depends on electric energy to generate an alternating magnetic field so as to heat the bottom of the pot. The two functions do not have mutual influence and complement each other. The high temperature liquid that flows and is stored in the inner cavity of the solar heat transfer panel disc comes from a solar combined heated body receiving sunlight irradiation outside, and their inner cavities are communicated as a whole. The induction cooker is also provided with an external water tank heat collector, which can heat warm water in non-cooking time. The induction cooker can perform cooking indoors.
Description
The invention relates to the field of solar cookers, in particular to a cooking device which comprehensively utilizes solar energy and electric energy and automatically and intelligently converts working modes, adopts an alternating magnetic field of a solar heat transfer panel disc and an electromagnetic heating coil disc to heat a pot, and can realize operations such as cooking, cooking and the like indoors.
The existing known induction cooker has the characteristics of high efficiency, large firepower and the like, but the food is heated by electric energy, so that the energy consumption is not reduced and the cost is saved; however, although the conventional solar cooker can cook rice by using solar energy without consuming non-regenerative energy, it is necessary for a user to operate under the irradiation of outdoor sunlight, and particularly, for cooking operations such as cooking, which sometimes requires a small fire and sometimes a large fire, the solar cooker cannot adjust the size of the "fire" in a short time. When the bad weather such as cloudy days, cloudy days and sunny days, the rice is likely to be cooked into the sandwich rice.
The invention aims to overcome the defects of the existing known induction cooker and solar cooker, and provides a solar cooker which can be heated by solar energy, and can also be heated by starting an electromagnetic heating coil panel to generate an alternating magnetic field at the bottom of a cooker when no sunlight irradiates or light is not strong, so that the size of firepower can be adjusted by starting the electromagnetic heating coil panel at any time during cooking operation such as cooking. The multifunctional electromagnetic oven can be operated and used indoors by a user and can also be used as a solar water heater.
The invention relates to an induction cooker capable of using solar energy and electric energy in a mixed mode, which comprises: the electromagnetic heating cooker comprises a base shell, a power supply control circuit board, an electromagnetic heating coil panel, an operation display panel, a cooker, a thermistor assembly, a fan, a power socket and base feet; it is characterized by also comprising:
a solar heat transfer panel disk, which is a thin disk type box body with the thickness of about 1 cm, stores and circulates high-temperature liquid in the inner cavity of the box body, is positioned at the uppermost layer of the electromagnetic oven, the upper surface of the box body is a panel of the electromagnetic oven, the central part of the panel, namely the area contacted with the bottom surface of a pan, is a heat dissipation area of the heat transfer panel disk, the pan is placed on the heat dissipation area of the panel disk, and an electromagnetic heating coil disk of the electromagnetic oven is arranged right below the heat dissipation area of the solar heat transfer panel disk and is close to or clings to the bottom of the heat transfer panel disk; and
the high-temperature liquid energy storage box is arranged around the induction cooker, the inner cavity of the high-temperature liquid energy storage box is communicated with the inner cavity of the solar heat transfer panel disc, and the high-temperature liquid energy storage box and the solar heat transfer panel disc are connected into a whole;
one end of the energy storage box solar interface is fixed on the box wall of the high-temperature liquid energy storage box and is communicated with the inner cavity of the high-temperature liquid energy storage box;
the solar heated metal pipe has an opening end socket port inserted into the solar interface of the energy storage box, and the inner cavity of the solar heated metal pipe and the inner cavity of the high-temperature liquid energy storage box are connected into a whole through the solar interface of the energy storage box, and the high-temperature liquid can circularly flow in the cavities;
the solar heat collector comprises a heat collecting pipe of a solar heat collector, a solar heated metal pipe is inserted into the heat collecting pipe of the solar heat collector to form a solar combined heat receiver, a gap between the heated metal pipe and the opening end of the heat collecting pipe is sealed by a high-pressure temperature-resistant ring, the combined heat receiver is fixedly arranged at a focal line of a long body sunlight paraboloid and is arranged under the irradiation of outdoor sunlight together, and the combined heat receiver takes a socket port of the solar heated metal pipe as a unique socket port of the combined heat receiver;
the solar heat collector comprises a heat collecting pipe of a solar heat collector, a solar heated metal pipe is inserted into the heat collecting pipe of the solar heat collector to form a solar combined heat receiver, a gap between the heated metal pipe and the opening end of the heat collecting pipe is sealed by a high-pressure temperature-resistant ring, the combined heat receiver is fixedly arranged at a focal line of a long body sunlight paraboloid and is arranged under the irradiation of outdoor sunlight together, and the combined heat receiver takes a socket port of the solar heated metal pipe as a unique socket port of the combined heat receiver;
the energy storage tank valve is fixedly arranged at the interface of the wall of the high-temperature liquid energy storage tank and is used for opening and closing a liquid circulation channel of the inner cavity of the high-temperature liquid energy storage tank and the inner cavity of the solar energy combined heating element;
the bendable heat-preservation extension pipe is only used as a spare part and can be arranged between the solar combined heat receiver and the solar interface of the energy storage box, one end of the bendable heat-preservation extension pipe can be inserted into a socket port of the solar combined heat receiver, and the other end of the bendable heat-preservation extension pipe can be inserted into the solar interface of the energy storage box;
the working mode conversion control circuit board is arranged on the inner wall of the base shell, and an important element liquid temperature detection sensor which is electrically communicated with the control circuit board is arranged on the inner wall of the high-temperature liquid energy storage box or other places capable of detecting the liquid temperature;
and the inner cavity of the water tank radiator is communicated to the solar combined heating body through the liquid external circulating pipe and the solar interface of the energy storage tank, so that a high-temperature liquid circulation channel of the external water tank heat collector is formed. Under the control of the working mode switching control circuit board, the high-temperature liquid circulation channel is closed during cooking operation time such as cooking and the like, but is opened during cooking operation time such as non-cooking and the like, so that the function of heating hot water by the water tank heat collector is completed.
The electromagnetic oven has the advantages that the electromagnetic oven can be used indoors, is convenient and applicable, has low cost and high reliability, and can use solar energy and electric energy in a mixed manner. The energy-saving stove can save a large amount of non-renewable energy for the country and consumers and reduce air pollution, thereby greatly reducing the energy cost of cooking operations of cooking, boiling water and the like of the consumers.
FIG. 1 is a schematic view of a main structure of an induction cooker capable of using solar energy and electric energy in a mixed manner
FIG. 2 schematic view of external tank collector
FIG. 3 is a schematic view of an elongated solar paraboloid and its assembly
Fig. 4 schematic view of heat collecting tube structure of solar heat collector
Fig. 4 schematic view of heat collecting tube structure of solar heat collector
FIG. 5 is a schematic view of a solar heated metal tube structure
FIG. 6 is a schematic view of a bendable heat-insulating extension pipe
The specific implementation mode is as follows:
the invention relates to an electromagnetic oven capable of using solar energy and electric energy in a mixed mode, which is characterized in that a solar heat transfer panel disc is added on a structure that an alternating magnetic field is generated at the bottom of a pot for heating by an electromagnetic heating coil disc for a known electromagnetic oven, particularly, a panel of the known electromagnetic oven is replaced by the solar heat transfer panel disc, so that the pot placed on a heat dissipation area on the front top surface of the heat transfer panel disc can be heated. Namely, as long as high-temperature liquid flows or is stored in the inner cavity of the solar heat transfer panel plate, the cookware placed on the solar heat transfer panel plate can be heated;
on the other hand, the high-frequency voltage of 20-40KHz is generated under the control of the power supply control circuit board of the electromagnetic oven, the electromagnetic heating coil panel can generate an alternating magnetic field to repeatedly cut and change at the bottom of the pot, so that the bottom of the pot generates annular current (eddy current), and the short-circuit heat effect of low resistance and high current is utilized to generate heat to directly enable the bottom of the pot to rapidly heat.
The panel of the known induction cooker is a non-metal panel for placing a pot, and is generally at a distance of about 1 cm from an electromagnetic heating coil disc of the induction cooker, a heat transfer panel disc made of non-metal and non-magnetic conducting materials and capable of flowing or storing high-temperature liquid is manufactured by utilizing the distance space, the heat transfer panel disc replaces the original panel of the induction cooker, the pot can be placed on the panel, the solar heat carried by the high-temperature liquid flowing or stored in the heat transfer disc can be transferred to the pot placed on the panel, and the original characteristic of an alternating magnetic field generated by the electromagnetic heating coil disc is not influenced by the heat transfer panel disc. Therefore, the induction cooker can heat and cook food by using electric energy and solar energy.
The heat energy transferred by the solar heat transfer panel plate is from the solar energy received by the solar combination heat receiver placed outdoors after being irradiated by strong light. Because heat-conducting liquid (such as heat-conducting oil or water and the like) is filled in the solar energy combined heat-receiving body cavity placed outdoors, the temperature of the liquid is raised due to illumination (the temperature of the heat-conducting oil can reach more than 200 ℃), the high-temperature liquid is conveyed to the high-temperature liquid energy storage box, and the pan placed on the high-temperature liquid energy storage box is heated through the solar heat transfer panel plate.
The control circuit board is switched by working modes to selectively control the use of solar energy or the use of electric energy: when sunlight is strong, solar energy is used for heating and cooking food; when the sun is in the shade, no sunlight exists or the strong fire is needed, the electric energy is used for heating and cooking the food; when sunlight appears, the sunlight is strong and weak, or the sunlight is sometimes not, the solar energy and the electric energy are alternately or simultaneously used. The working mode conversion control circuit board has an intelligent control function, and core elements of the working mode conversion control circuit board comprise components for intelligent analysis and control, such as a liquid temperature detection sensor, a single chip microcomputer and the like.
In order to connect the solar combined heat receiver with the high-temperature liquid energy storage box and the solar heat transfer panel disc thereof into a whole and enable the high-temperature liquid to circularly flow in the inner cavity between the solar combined heat receiver and the high-temperature liquid energy storage box, the solar energy interface of the energy storage box is also arranged, and the solar combined heat receiver and the high-temperature liquid energy storage box can be tightly combined into a whole with communicated inner cavities.
In order to connect the solar combined heat receiver with the high-temperature liquid energy storage box and the solar heat transfer panel disc thereof into a whole and enable the high-temperature liquid to circularly flow in the inner cavity between the solar combined heat receiver and the high-temperature liquid energy storage box, the solar energy interface of the energy storage box is also arranged, and the solar combined heat receiver and the high-temperature liquid energy storage box can be tightly combined into a whole with communicated inner cavities.
The system is also provided with a liquid external circulation pipe, a water tank high-temperature oil pump, a water tank radiator, an external water tank and other components, and the components form an external water tank heat collector. High-temperature liquid in the solar combined heat receiver cavity is conveyed into a water tank radiator by a water tank high-temperature oil pump to circulate in a circulating manner. Under the control of the working mode conversion control circuit board, in most of the time (namely cooking time periods such as non-cooking time periods) at ordinary times, high-temperature liquid heats water stored in the external water tank by flowing through the water tank radiator, and the heat collection function of the water heater is completed.
To facilitate understanding of the specification, the specific structure of fig. 1, 2, 3, 4, 5, and 6 will be further described and depicted.
1. Structure diagram composition and description:
fig. 1 includes: the base casing 1, the power control circuit board 2, the electromagnetic heating coil panel 3, the operation display panel 4, the pot 5, the thermistor assembly 6, the fan 7, the power socket 8, and the base leg 9, which are basic components of the known induction cooker, together with an induction cooker panel (not shown in fig. 1). The invention is characterized in that on the basis of the basic structure of the known induction cooker, the following components are added: the solar heat transfer panel plate comprises a solar heat transfer panel plate 10, a high-temperature liquid energy storage tank 11, an energy storage tank solar interface 12, an energy storage tank valve 13, a working mode conversion control circuit board 14, a liquid external circulation pipe 15 and a liquid temperature detection sensor 16. The solar heat transfer panel plate is mainly characterized in that a known non-metal panel of an induction cooker is replaced by the solar heat transfer panel plate. The heat transfer panel plate can be used for placing a pot, and can transfer solar heat carried by high-temperature liquid circulating or stored in the inner cavity of the heat transfer panel plate to the pot placed on the heat transfer panel plate. Because the panel disk is also a heat conducting disk (such as a porcelain heat conducting disk) which is made of nonmetal and non-magnetic conducting materials and has the thickness of only about 1 cm, the panel disk can not generate any influence on an alternating magnetic field generated by an electromagnetic heating coil disk of an induction cooker. The alternating magnetic field is repeatedly cut and changed at the bottom of the pot, so that the bottom of the pot generates annular current (vortex) to rapidly generate heat, and the heat is absorbed by food in the pot and can not be reversely transferred to liquid in the inner cavity of the solar heat transfer panel plate. Therefore, the solar heat transfer panel plate has a one-way effect, namely, the cooker placed on the solar heat transfer panel plate can be heated without changing the characteristics and performance of the induction cooker.
The internal structure of the solar heat transfer panel plate can be changed variously according to the overall structure of the induction cooker, for example, a non-metal material is made into a small round tube and is coiled into a disc (like a mosquito coil plate) or a square disc, so that high-temperature liquid flows through the disc, and at the moment, a high-temperature resistant micro oil pump can be adopted to enable the high-temperature liquid to circularly flow in the disc; or only one thin disc can be manufactured, only one cavity is arranged in the thin disc, and high-temperature liquid can circulate in the thin disc and can also be stored. However, no matter how the internal structure of the solar heat transfer panel plate changes, the solar heat transfer panel plate is characterized in that the solar heat transfer panel plate can heat a pot placed on the solar heat transfer panel plate by means of circulating flow and storage of high-temperature liquid in the solar heat transfer panel plate, and the purpose that the electromagnetic heating coil plate heats the pot is not influenced.
The roles of the other components are respectively:
mode conversion control circuit board, its effect is: according to the existence of sunlight irradiation, the intensity of sunlight irradiation and the cooking operation, several working modes such as independent use of solar energy, independent use of electric energy, alternate use of solar energy and electric energy, simultaneous use of solar energy and electric energy (generally used when the firepower is strengthened in a short time) and the like are selected. The conversion and control of the working mode are realized by a working mode conversion control circuit board arranged on the inner wall of the base shell. The liquid temperature detection sensor is a sensor which is electrically connected with the working mode conversion control circuit board and is used for detecting the liquid temperature, the sensor is arranged on the inner wall of the solar heat transfer panel disc or other positions capable of detecting the liquid temperature, and the singlechip on the working mode conversion control circuit board can detect the temperature of the liquid in the energy storage box through the sensor, so that the intensity of outdoor sunlight can be indirectly judged, and various working states of the rice cooker can be controlled.
The high-temperature liquid energy storage box has the function that high-temperature liquid in the solar combined heat receiver cavity communicated with the high-temperature liquid energy storage box is temporarily stored in the box or flows through the box and is communicated with the inner cavity of the solar heat transfer panel plate, and when the high-temperature liquid in the high-temperature liquid energy storage box is stored or flows through the solar heat transfer panel plate, heat can be dissipated through the solar heat transfer panel plate, namely the solar heat transfer panel plate heats a pot placed on the solar heat transfer panel plate. The high-temperature liquid energy storage box has the other function that the influence of unstable sunlight irradiation can be reduced by storing the high-temperature liquid, and the stability of the high-temperature liquid in the high-temperature liquid energy storage box can not be changed immediately at any time if the sunlight exists. However, the high-temperature liquid energy storage box is not an unnecessary and indispensable component, and the purpose of heating the pot can be achieved if the high-temperature liquid in the solar combined heating element is directly conveyed to the solar heat transfer panel plate. In a similar way, the installation position of the high-temperature liquid energy storage box can be changed in various ways according to the requirement. The position designed in fig. 1 is only a reasonable position.
The solar interface of the energy storage box is an interface for connecting the high-temperature liquid energy storage box and the solar combined heated body, and has the functions of ensuring that the solar combined heated body and the high-temperature liquid energy storage box can be tightly combined together and facilitating the installation and the disassembly of the solar combined heated body and the high-temperature liquid energy storage box. In the embodiment, the loose joint interface is adopted and comprises a sliding ring, a small ball, an inner sealing ring, a spring, a steel wire ring and the like, so that the open end of the solar combined heat receiver is required to be designed into a socket port matched with the loose joint interface, the socket port is inserted into the loose joint interface, the loose joint interface can be locked, the sealing function is realized, high-temperature liquid cannot flow out to scald a user, and the loose joint interface is easy to pull and insert.
The solar interface of the energy storage box is an interface for connecting the high-temperature liquid energy storage box and the solar combined heated body, and has the functions of ensuring that the solar combined heated body and the high-temperature liquid energy storage box can be tightly combined together and facilitating the installation and the disassembly of the solar combined heated body and the high-temperature liquid energy storage box. In the embodiment, the loose joint interface is adopted and comprises a sliding ring, a small ball, an inner sealing ring, a spring, a steel wire ring and the like, so that the open end of the solar combined heat receiver is required to be designed into a socket port matched with the loose joint interface, the socket port is inserted into the loose joint interface, the loose joint interface can be locked, the sealing function is realized, high-temperature liquid cannot flow out to scald a user, and the loose joint interface is easy to pull and insert.
The valve of the energy storage box is used for opening the high-temperature liquid inlet of the high-temperature liquid energy storage box when cooking and other cooking operations are needed, so that a liquid circulation channel between the energy storage box and the solar combined heating body is opened. When the external water tank heat collector is needed to heat hot water, the valve of the energy storage tank is closed. In addition, when the solar combined heat receiver is pulled out from the solar interface of the energy storage box, the valve of the energy storage box needs to be in a closed state in order to ensure safety and prevent liquid from flowing outwards.
Fig. 2 shows an external water tank heat collector, which comprises a liquid external circulation pipe 15, one end of which is communicated with the solar interface 12 of the energy storage tank (as shown in fig. 1), and the other end is communicated with a water tank radiator 21, and a water tank high-temperature oil pump 22 is arranged between the two ends, and when the water tank high-temperature oil pump is started, high-temperature liquid can enter the water tank radiator. The radiator is arranged in the external water tank 23, and the inner cavity of the radiator is not communicated with the external water tank.
The high-temperature oil pump of the water tank works under the control of the working mode conversion control circuit board, and if the external water tank heat collector is in a heat collection state of the water heater during cooking operation such as non-cooking, the working process is as follows: the working mode conversion control circuit board controls the water tank high-temperature oil pump to pump out liquid stored in the high-temperature liquid energy storage tank, then the valve of the energy storage tank is closed, then the water tank high-temperature oil pump sends the high-temperature liquid into the water tank radiator through the liquid external circulation pipe, the liquid temperature radiates heat to water in the external water tank through an inner cavity channel flowing through the radiator, the temperature of the water rises, and the temperature of the high-temperature liquid decreases. Then the liquid after temperature reduction is sent back to the solar energy combination heating body through the liquid external circulation pipe to continue to receive the sunlight irradiation, and the circulation is repeated. In order to save cost, the high-temperature liquid can realize natural circulation in the external water tank heat collector by means of power generated by different buoyancy of the liquid at different temperatures, so that a water tank high-temperature oil pump can be omitted, but the mounting position of the external water tank is higher than that of the solar combined heat receiver.
Fig. 3 shows a basic device of a solar combined heat receiver, which is composed of an elongated solar parabolic surface 30, a solar combined heat receiver (including a heat collecting tube 40 of a solar heat collector and a solar heated metal tube 50), a heat receiver bracket 31, a parabolic surface bracket 32 and the like. The solar combined heat receiver is placed outdoors to receive strong light irradiation, and can be a combination of a heat collecting tube 40 and a solar heated metal tube 50 of a solar heat collector, namely a combination of inserting the solar heated metal tube into an inner cavity of the heat collecting tube of the solar heat collector; the heat collecting pipe of the solar heat collector or the solar heated metal pipe can be independently used. If only the heat collecting tube of the solar heat collector is used, the solar heat collector is only suitable for being used under the condition that the temperature of liquid (such as heat conducting oil) in the tube is not too high or the air pressure (when the liquid is water) is not high, so that the cost of a solar heated metal tube can be saved, the heat efficiency is higher, but the safety is poorer; if the solar heating metal tube is used alone, the solar heating metal tube can also receive strong light irradiation to be heated, so that the cost of a heat collecting tube of a solar heat collector can be saved, the solar heat collector can bear the impact of high temperature and high air pressure, but the heat insulation effect is poor; the solar heating metal pipe is only inserted into the heat collecting pipe of the solar heat collector for combined use, although the cost is relatively increased, the safety is better, the heat preservation is also better, and the defects of the heat collecting pipe or the heating metal pipe which is used independently are overcome.
The long-shaped solar paraboloid is used for enhancing the illumination intensity and gathering the sunlight. It is different from a general paraboloid in that it can concentrate sunlight into a line instead of a point. The intense light irradiation heat collection of the whole solar combined heat receiver can be completed without strictly tracking the position of the sun.
Fig. 4 shows a heat collecting tube 40 and a high pressure temperature resistant ring 41 of a solar heat collector, which can absorb solar energy under the irradiation of sunlight and has a good heat preservation effect. The solar energy heat collector can adopt a heat collecting pipe of the solar energy heat collector which is commonly used at present, and can also be specially manufactured, the opening part of the solar energy heat collector can be specially manufactured into a socket opening which can be inserted into the shape of an adjustable joint, when the solar energy heat collector is combined with a solar energy heated metal pipe (namely, the solar energy heated metal pipe is inserted into the inner cavity of the heat collecting pipe of the solar energy heat collector) for use, the solar energy heat collector can also be specially manufactured into a completely transparent pipe, so that the solar energy heated metal pipe. The high-pressure temperature-resistant ring is used for sealing a gap between the solar heated metal tube and the opening end of the heat collecting tube of the solar heat collector.
Fig. 5 shows a solar heated metal tube 50, which contains a heat conducting liquid in its cavity, and can absorb solar energy under the irradiation of sunlight. The opening of the connector is designed to be a socket opening matched with the movable connector interface, and the outer body is black and is easy to absorb solar energy.
Fig. 6 shows a bendable heat-insulating extension pipe 60 for extending the distance between the solar combination heat receiver and the main body portion of the induction cooker (placed indoors) only when necessary, so that the solar combination heat receiver can be placed under sunlight. One end of the connector is provided with a movable joint interface, and the other end is provided with a socket port matched with the movable joint interface. The extension pipe has a heat-insulating function and a bending function.
The solar combined heat receiver in fig. 4 and 5 adopts a tubular long body (with a length of about 1 to 2 meters) which can penetrate through the wall of the kitchen to be exposed to sunlight, while the induction cooker main body is arranged indoors (in the kitchen), and the solar combined heat receiver is arranged on the sunlight only by using the bendable heat-insulating extension pipe when the sunlight cannot be well irradiated on the solar combined heat receiver, which is one of the characteristics of the invention.
The solar combined heat receiver in fig. 4 and 5 adopts a tubular long body (with a length of about 1 to 2 meters) which can penetrate through the wall of the kitchen to be exposed to sunlight, while the induction cooker main body is arranged indoors (in the kitchen), and the solar combined heat receiver is arranged on the sunlight only by using the bendable heat-insulating extension pipe when the sunlight cannot be well irradiated on the solar combined heat receiver, which is one of the characteristics of the invention.
2. The overall working principle is as follows:
the working principle of an induction cooker capable of using solar energy and electric energy in a mixed manner is described in the following with reference to the attached drawings 1, 2 and 3:
the main body part of the induction cooker is arranged indoors, the solar combined heat receiver penetrates through the kitchen wall and is arranged under the irradiation of sunlight, the solar combined heat receiver is arranged at the focus line of the long-body sunlight paraboloid, the long-body sunlight paraboloid is used for enhancing the illumination intensity and assisting in gathering the sunlight. Because of strong light irradiation, the liquid injected into the solar heated metal tube cavity is rapidly heated to a high temperature state (generally the water temperature can exceed 80 ℃, and the oil temperature can exceed 200 ℃). Because the liquid with higher temperature floats on the uppermost layer under the pushing of the buoyancy of the liquid, when the position of the solar combined heat receiver is relatively lower than that of the high-temperature liquid energy storage tank, the liquid with higher temperature can enter the high-temperature liquid energy storage tank under the action of the buoyancy (the high-temperature liquid can be sent into the energy storage tank through a miniature high-temperature oil pump or a water pump, which is not described herein at any length). As mentioned above, structurally, the inner cavity of the solar heat transfer panel plate is connected with the inner cavity of the high-temperature liquid energy storage box into a whole, and high-temperature liquid (such as high-temperature heat conduction oil) is stored or flows through the solar heat transfer panel plate, so that heat energy carried by the high-temperature liquid in the cavity can be released. Therefore, when cooking rice, the pot placed on the solar heat transfer panel plate is heated, and the food therein is cooked.
In order to ensure that heat energy is only released from the central area of the solar heat transfer panel plate, namely only from the area around the bottom contact surface of the cookware (the area is defined as the heat dissipation area of the solar heat transfer panel plate), other areas of the solar heat transfer panel plate must be made of non-metal high-temperature-resistant heat-insulating materials.
The invention is mainly characterized in that the solar heat transfer panel plate replaces a well-known non-metal panel of the induction cooker. The heat transfer panel plate can be used for placing a pot, and can transfer solar heat carried by high-temperature liquid circulating or stored in the inner cavity of the heat transfer panel plate to the pot placed on the heat transfer panel plate, so that the aims of cooking and frying by using solar energy are fulfilled. On the other hand, the solar heat transfer panel disc is made of nonmetal, non-magnetic conductive materials but high heat conductive materials, and the thickness of the solar heat transfer panel disc is only about 1 cm, so that the solar heat transfer panel disc does not have any influence on an alternating magnetic field generated by an electromagnetic heating coil disc of an induction cooker. The alternating magnetic field is repeatedly cut and changed at the bottom of the pot, so that eddy current is generated at the bottom of the pot to quickly generate heat, and the electromagnetic oven can still cook and fry rice with electric energy like a common electromagnetic oven.
Therefore, the induction cooker can heat and cook food by using solar energy and electric energy. The two do not influence each other but can complement each other.
According to different weather conditions, a working mode conversion control circuit board is arranged, and the working mode conversion control circuit board is mainly used for controlling whether the electromagnetic oven cooks rice by adopting solar energy or electric energy:
when the sunlight is strong and stable, the temperature of the liquid in the solar energy combination heating body and the high-temperature liquid energy storage box is high, if the liquid is heat conduction oil, the temperature of the heat conduction oil can exceed 200 ℃ after illumination for a certain time, and at the moment, cooking operation such as cooking can be finished only by using solar energy; when no sunlight irradiates on cloudy days, the working mode conversion control circuit board controls the high-temperature oil pump of the water tank to pump out liquid in the high-temperature liquid energy storage tank, the valve of the energy storage tank is closed, and the electromagnetic heating coil panel is started to work during cooking; when sunlight is occasionally unavailable or oil temperature is high and low, the working mode conversion control circuit board can also start the electromagnetic heating coil panel to work according to the required gap; when the sunlight is not strong, the temperature of the liquid in the energy storage box is low, or the dish needs to be fried in a short time, the working mode conversion control circuit board can control the electromagnetic heating coil panel and the solar energy to work simultaneously, and the electric energy plays a role of strengthening the fire; when the water heater is in the non-cooking operation time period, the working mode conversion control circuit board starts the external water tank heat collector to enter a water boiling and heat collecting state.
When the solar cooker is in a cooking state, if the single chip microcomputer on the working mode conversion control circuit board detects that the liquid temperature exceeds a safe set value through the liquid temperature detection sensor in the process, the working mode conversion control circuit board controls and starts the external water tank heat collector to work, so that high-temperature liquid temporarily enters the water tank heat radiator to be quickly radiated, the temperature of the high-temperature liquid is reduced to return to a normal value, and the safe use of the induction cooker is ensured.
Claims (7)
1. An induction cooker capable of using solar energy and electric energy in a mixed manner, comprising: the base comprises a base shell, an operation display panel, a thermistor component, a fan, a power socket and base feet; it is characterized by also comprising:
a solar heat transfer panel tray for storing and circulating high temperature liquid; the upper surface of the solar heat transfer panel plate is used as a panel of the induction cooker and is positioned at the uppermost layer of the induction cooker for placing a pot to be heated;
the electromagnetic heating coil disc is arranged right below the panel and is close to or closely attached to the bottom of the heat transfer panel disc; and
the high-temperature liquid energy storage tank is arranged at the peripheral part of the induction cooker and is used for storing and circulating high-temperature liquid, and the high-temperature liquid energy storage tank is communicated with the inner cavity of the solar heat transfer panel disc and is connected with the inner cavity of the solar heat transfer panel disc into a whole;
a combined heat receiver for receiving solar radiation;
the interface is fixed on the wall of the high-temperature liquid energy storage box, so that the high-temperature liquid energy storage box is communicated with the combined heated body through the interface, and the high-temperature liquid circulates in the high-temperature liquid energy storage box, the solar heat transfer panel disc and the combined heated body.
2. The induction cooker using solar energy and electric energy in a mixed manner according to claim 1, wherein the combined heat receiver comprises:
the opening end of the solar heated metal pipe is inserted into the interface, so that the high-temperature liquid can circulate in the high-temperature liquid energy storage tank and the solar heated metal pipe through the interface;
and the heat collecting pipe enables the solar heated metal pipe to be inserted into the heat collecting pipe to form the combined heated body, and a gap between the solar heated metal and the heat collecting pipe is sealed by a high-pressure temperature-resistant ring.
3. The induction cooker capable of using solar energy and electric energy in a mixed manner according to claim 1, wherein:
the solar heat transfer panel disk is made of nonmetal and non-magnetic conducting materials, so that a magnetic field generated by the electromagnetic heating coil disk arranged at the lower part of the solar heat transfer panel disk is not influenced.
4. The induction cooker capable of using solar energy and electric energy in a mixed manner according to claim 1, wherein:
the interface is also provided with a liquid external circulating pipe, so that the combined heating body is externally connected with a water tank radiator through the liquid external circulating pipe, and the water tank radiator is arranged in an external water tank, so that a channel for high-temperature liquid circulation is formed;
wherein a water tank high temperature oil pump is installed between the liquid external circulation pipe and the water tank radiator.
5. The induction cooker capable of using solar energy and electric energy in a mixed manner according to claim 1, wherein:
the interface is a flexible joint interface.
6. The induction cooker for hybrid use of solar energy and electric energy according to claim 1, further comprising:
and the conversion control circuit board is used for monitoring the liquid temperature and controlling the induction cooker to independently use solar energy and/or electric energy according to the monitoring result.
7. The induction cooker capable of mixing solar energy and electric energy according to claim 1,
an inner cavity is formed in the solar heat transfer panel disc, so that high-temperature liquid flowing through the inner cavity can dissipate heat through the disc surface of the solar heat transfer panel disc;
or,
the solar heat transfer panel plate is characterized in that at least one thin tube is arranged inside the solar heat transfer panel plate, and the thin tube is arranged inside the solar heat transfer panel plate in a winding and embedding mode, so that high-temperature liquid flowing through the thin tube can dissipate heat through the plate surface of the solar heat transfer panel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210063743.4A CN103307644B (en) | 2012-03-13 | 2012-03-13 | Induction cooker able to use solar energy and electric energy |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210063743.4A CN103307644B (en) | 2012-03-13 | 2012-03-13 | Induction cooker able to use solar energy and electric energy |
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| CN103307644A CN103307644A (en) | 2013-09-18 |
| CN103307644B true CN103307644B (en) | 2017-01-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104776597B (en) * | 2015-04-28 | 2018-02-06 | 重庆工商大学 | A kind of heater in vacuum environment |
| CN108088581A (en) * | 2016-11-21 | 2018-05-29 | 佛山市顺德区美的电热电器制造有限公司 | The detecting system of electromagnetic heating cookware temperature and electromagnetic heating kitchen tools |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2525439Y (en) * | 2002-02-08 | 2002-12-11 | 付加强 | Solar water heating box of electromagnetic oven auxiliary heating |
| CN2919122Y (en) * | 2006-04-06 | 2007-07-04 | 尚诚德 | Safety electromagnetic auxiliary heating solar water heater |
| DE102008045324A1 (en) * | 2008-08-21 | 2010-04-01 | Grimm, Friedrich, Prof. Dipl.-Ing. | Solar thermal flat plate collector i.e. laminated glass body, for e.g. absorbing electromagnetic energy of solar radiation, has hydraulic structure staying in connection with absorber element that absorbs radiation |
| CN201488308U (en) * | 2009-06-08 | 2010-05-26 | 李树善 | Combined solar electric energy cooker |
| CN202452715U (en) * | 2012-01-20 | 2012-09-26 | 赵景田 | Solar oven having electromagnetic oven heating and automatic reverse functions |
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2012
- 2012-03-13 CN CN201210063743.4A patent/CN103307644B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2525439Y (en) * | 2002-02-08 | 2002-12-11 | 付加强 | Solar water heating box of electromagnetic oven auxiliary heating |
| CN2919122Y (en) * | 2006-04-06 | 2007-07-04 | 尚诚德 | Safety electromagnetic auxiliary heating solar water heater |
| DE102008045324A1 (en) * | 2008-08-21 | 2010-04-01 | Grimm, Friedrich, Prof. Dipl.-Ing. | Solar thermal flat plate collector i.e. laminated glass body, for e.g. absorbing electromagnetic energy of solar radiation, has hydraulic structure staying in connection with absorber element that absorbs radiation |
| CN201488308U (en) * | 2009-06-08 | 2010-05-26 | 李树善 | Combined solar electric energy cooker |
| CN202452715U (en) * | 2012-01-20 | 2012-09-26 | 赵景田 | Solar oven having electromagnetic oven heating and automatic reverse functions |
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| CN103307644A (en) | 2013-09-18 |
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