A photothermal-electric coupled energy-saving electric heater

Abstract

The present application discloses a photothermal-electric coupled energy-saving electric heater, which belongs to the field of electric heaters and solves the problems of high cost and small heating range of existing electric heaters. A battery carrier is provided on the outer wall of the shell. The battery is fixed in the battery carrier. The heating wire is fixed in the inner cavity of the shell. The isolation cover is fixed on the inner wall of the shell. A hollow reel is provided in the isolation cover. The electric heating film is wound around the axis of the hollow reel on the outer wall of the hollow reel, and one end of the electric heating film is connected to the outer wall of the hollow reel so that the hollow reel can roll up the electric heating film. The position of the shell where the electric heating film is set is provided with an electric heating film winding and unwinding port. The rotating shaft of the first motor is connected to the hollow reel. At least one solar power generation mechanism is fixed on the outer wall of the shell, and the solar power generation mechanism is electrically connected to the battery. The battery, the heating wire and the electric heating film are all electrically connected to the external power supply. The heating wire and the electric heating film are all electrically connected to the battery. The electric heater of the present application has low heating cost and a large heating range.

Description

Technical Field

[0001] The present application relates to the technical field of electric heaters, and in particular to a photothermal-electric coupled energy-saving electric heater. Background Art

[0002] With the rapid development of national electricity and the promotion of environmental protection policies, the heating method of rural families has gradually changed from burning stoves to electric heaters. At present, the most common electric heater is a non-heat storage electric heater. When powered, the electric heater converts electrical energy into thermal energy for heating. However, since the electrical energy input and the thermal energy released by the electric heater are the same, when the power is stopped, the electric heater can no longer continue to emit heat. Therefore, the power consumption is large when using electric heaters for heating, resulting in relatively high costs. In addition, the existing electric heater heats the resistance wire to increase the temperature of the thermal oil at the bottom of the resistance wire. The thermal oil expands and contracts due to heat and flows to the top of the device, and then the heat sink dissipates heat into the room to achieve indoor heating. However, the heat dissipation range of the heat sink is limited, resulting in a small heating range of the electric heater. Summary of the invention

[0003] The embodiment of the present application solves the problems of high use cost and small heating range of existing electric heaters by providing a photothermal-electric coupled energy-saving electric heater.

[0004] The embodiment of the present invention provides a photothermal-electric coupled energy-saving electric heater, which includes a shell, a battery, an electric heating wire, an isolation cover, a hollow reel, an electric heating film, a first motor, a control mechanism and at least one solar power generation mechanism; a battery carrier shell is arranged on the outer wall of the shell; the battery is fixed in the battery carrier shell; the electric heating wire is fixed in the inner cavity of the shell; the isolation cover is fixed on the inner wall of the shell; the hollow reel is arranged in the isolation cover; the electric heating film is wound around the axis of the hollow reel on the outer wall of the hollow reel, One end of the electric heating film is connected to the outer wall of the hollow reel so that the hollow reel can roll up the electric heating film; the position of the shell where the electric heating film is set is provided with an electric heating film rolling and unwinding port; the rotating shaft of the first motor is connected to the hollow reel; at least one of the solar power generation mechanisms is fixed to the outer wall of the shell, and the solar power generation mechanism is electrically connected to the battery; the battery, the heating wire and the electric heating film are all electrically connected to an external power supply; the heating wire and the electric heating film are all electrically connected to the battery; the first motor is electrically connected to the control mechanism.

[0005] In a possible implementation, the photothermal-electric coupled energy-saving electric heater also includes a phase change heat storage mechanism; the phase change heat storage mechanism includes a metal foam phase change capsule, a serpentine coil, a first water pump, a water tank, a heat sink and a second water pump; the water tank is fixed in the inner cavity of the shell, and the outer wall of the water tank matches the inner wall of the shell; a accommodating cavity is arranged in the side wall of the water tank; the metal foam phase change capsule is arranged in a cavity formed by the side wall of the accommodating cavity on the side away from the water tank, and the metal foam phase change capsule tightly surrounds the heating wire; the heat sink is fixed on the outer side wall of the shell; the second water pump is fixed on the heat sink; the serpentine coil is fixed in the metal foam phase change capsule; the first water pump is fixed on the serpentine coil; the water inlet of the serpentine coil is connected to the water outlet of the heat sink; the water inlet of the heat sink is connected to the water outlet of the water tank; the water inlet of the water tank is connected to the water outlet of the serpentine coil; the first water pump and the second water pump are both electrically connected to the control mechanism.

[0006] In a possible implementation, the photothermal-electric coupled energy-saving electric heater further includes a first thermal insulation layer; the first thermal insulation layer is fixed between the shell and the water tank.

[0007] In a possible implementation, the solar power generation mechanism includes two photovoltaic panel groups, a voltage stabilizing circuit and a supporting bracket; the photovoltaic panel group includes a plurality of photovoltaic panels, the plurality of photovoltaic panels are arranged in a rectangular array, and adjacent photovoltaic panels are connected to each other; the side walls of the two photovoltaic panel groups are connected; one end of the supporting bracket is connected to the outer wall of the shell; the other end of the supporting bracket is connected to the back of one of the photovoltaic panel groups; the plurality of photovoltaic panels are electrically connected to the voltage stabilizing circuit; and the voltage stabilizing circuit is electrically connected to the battery.

[0008] In a possible implementation, the side walls of the two photovoltaic panel groups are connected by a first hinge; and one end of the support bracket is connected to the outer wall of the shell by a second hinge.

[0009] In a possible implementation, the solar power generation mechanism also includes a photoresistor and a second motor; the support bracket and the back of the photovoltaic panel group are connected through the second motor, the fixed end of the second motor is arranged on the support bracket, and the rotating shaft of the second motor is connected to the back of the photovoltaic panel group; a photoresistor is arranged at the edge of the two photovoltaic panel groups; the second motor and the photoresistor are both electrically connected to the control mechanism.

[0010] In a possible implementation, the solar power generation mechanism also includes a first metal foam phase change layer, a capillary network layer, an insulation cover, a third water pump and a first fan; the first metal foam phase change layer is fixedly connected to the back of each photovoltaic power generation panel group; the capillary network layer is fixedly connected to the side of the first metal foam phase change layer away from the photovoltaic power generation panel group; the water inlet and outlet of the capillary network layer are both connected to the water tank; the third water pump is arranged on the water inlet pipe of the capillary network layer; an insulation cover is fixedly connected to the back of each photovoltaic power generation panel group; the insulation cover and the back of the photovoltaic power generation panel group form a chamber, and the first metal foam phase change layer and the capillary network layer are both located in the chamber; a first insulation board that can be opened and closed is arranged on the side of the insulation cover, and a second insulation board that can be opened and closed is arranged on the other side of the insulation cover, and the first insulation board and the second insulation board are opposite to each other; the first fan is fixed in the chamber and is close to the first insulation board.

[0011] In a possible implementation, the photothermal-electrically coupled energy-saving electric heater also includes a second metal foam phase change layer and a second insulation layer; the second metal foam phase change layer is fixed to the side of the electric heating film away from the hollow scroll; the second insulation layer is fixed to the side of the second metal foam phase change layer away from the electric heating film.

[0012] In a possible implementation, the photothermal-electrically coupled energy-saving electric heater also includes an air inlet, an air outlet and a second fan; the air inlet and the air outlet are both arranged on the side wall of the shell; and the air outlet is located on the opposite side of the air inlet; the axis of the air inlet coincides with the axis of the hollow scroll; the second fan is fixed on the side wall of the shell where the isolation cover is set, and is located on the same side as the air inlet.

[0013] In a possible implementation, the photothermal-electric coupled energy-saving electric heater also includes an LED lamp and a photocatalyst; the LED lamp is fixed in the inner cavity of the isolation cover; the photocatalyst is arranged on the inner surface of the isolation cover; the LED lamp is electrically connected to the battery.

[0014] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0015] The embodiment of the present invention provides a photothermal-electric coupled energy-saving electric heater, which includes a shell, a battery, an electric heating wire, an isolation cover, a hollow reel, an electric heating film, a first motor, a control mechanism and at least one solar power generation mechanism. A battery carrier shell is provided on the outer wall of the shell. The battery is fixed in the battery carrier shell. The electric heating wire is fixed in the inner cavity of the shell. The isolation cover is fixed on the inner wall of the shell. A hollow reel is provided in the isolation cover. The electric heating film is wound around the axis of the hollow reel on the outer wall of the hollow reel, and one end of the electric heating film is connected to the outer wall of the hollow reel so that the hollow reel can roll up the electric heating film. The position of the shell where the electric heating film is set is provided with an electric heating film winding and unwinding port. The rotating shaft of the first motor is connected to the hollow reel. At least one solar power generation mechanism is fixed to the outer wall of the shell, and the solar power generation mechanism is electrically connected to the battery. The battery, the electric heating wire and the electric heating film are all electrically connected to an external power source. The electric heating wire and the electric heating film are all electrically connected to the battery. The first motor is electrically connected to the control mechanism. In practical applications, when the electric heater is not needed for heating, the electric heater is placed outdoors, and the solar power generation mechanism can generate electricity and store it in the battery. When heating is needed, the electricity stored in the battery can be used to supply the heating wire and the electric heating film, and there is no need to power on the electric heater, which reduces the cost of using the electric heater. In addition, when the electric heater is heating, the control mechanism controls the first motor to rotate, and the rotation of the first motor drives the hollow reel to rotate, so that the electric heating film extends from the electric heating film roll-out port to the outside of the shell, thereby increasing the heating area of ​​the electric heater and improving the comfort of the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 Schematic diagram of the structure of the photothermal-electric coupled energy-saving electric heater provided in the embodiment of the present application Figure 1 ;

[0018] Figure 2 Schematic diagram of the structure of the photothermal-electric coupled energy-saving electric heater provided in the embodiment of the present application Figure 2 ;

[0019] Figure 3 for Figure 2 A in the enlarged view;

[0020] Figure 4 for Figure 2 The enlarged view of point B in the figure;

[0021] Figure 5Schematic diagram of the structure of the photothermal-electric coupled energy-saving electric heater provided in the embodiment of the present application Figure 3 ;

[0022] Figure 6 for Figure 5 The enlarged view of point C in the figure;

[0023] Figure 7 Schematic diagram of the structure of the photothermal-electric coupled energy-saving electric heater provided in the embodiment of the present application Figure 4 ;

[0024] Figure 8 for Figure 7 Enlarged view of point D in .

[0025] Icons: 1-shell; 1a-electrothermal film roll-up and unwinding port; 1b-air inlet; 1c-air outlet; 2-battery; 3-electric heating wire; 4-isolation cover; 5-hollow reel; 6-electrothermal film; 7-first motor; 8-control mechanism; 9-solar power generation mechanism; 9a-photovoltaic power generation panel group; 9a1-photovoltaic power generation panel; 9b-voltage stabilizing circuit; 9c-support bracket; 9d-first hinge; 9e-second hinge; 9f-photoresistor; 9g-second motor; 9h-first metal foam phase change layer; 9i-capillary network layer; 9j-insulation cover; 9j1-first insulation board; 9j2 -second insulation board; 9k-third water pump; 9l-first fan; 10-battery carrier shell; 11-phase change heat storage mechanism; 11a-metal foam phase change capsule; 11b-serpentine coil; 11c-first water pump; 11d-water tank; 11e-heat sink; 11f-second water pump; 12-first insulation layer; 13-second metal foam phase change layer; 14-second insulation layer; 15-second fan; 16-LED lamp; 17-photocatalyst; 18-negative ion generator; 19-triangular power cord plug; 20-universal wheel; 21-temperature sensor; 22-roller shutter support frame. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In the description of the embodiments of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0028] like Figures 1 to 8 As shown, an embodiment of the present invention provides a photothermal-electric coupled energy-saving electric heater, which includes a housing 1, a battery 2, a heating wire 3, an isolation cover 4, a hollow reel 5, an electric heating film 6, a first motor 7, a control mechanism 8 and at least one solar power generation mechanism 9. Since there are still peak and valley electricity prices, when people have a high demand for heating during the day, the electricity price is high, and when the demand for heating is low at night, the electricity price is low. Therefore, when the electricity price is low, the electric heater can be powered on to store the electric energy in the battery 2, and when the electricity price is high, the battery 2 can be used to power the heating wire 3 and the electric heating film 6, thereby reducing the heating cost while meeting the heating demand.

[0029] Continue to refer to Figure 1 As shown, a battery carrier shell 10 is provided on the outer wall of the shell 1. The battery 2 is fixed in the battery carrier shell 10. The heating wire 3 is fixed in the inner cavity of the shell 1. Specifically, the temperature of the heating wire 3 is relatively high during operation, so in order to ensure the safety of the electric heater, the heating wire 3 is arranged in the inner cavity of the shell 1. If both the battery 2 and the heating wire 3 are arranged in the inner cavity of the shell 1, the temperature of the heating wire 3 will affect the battery 2, so the battery 2 is arranged on the outside of the shell 1. In addition, the battery carrier shell 10 can protect the battery 2 and prevent the battery 2 from being directly exposed to a place where the human body can touch and cause a safety accident. In actual application, the heating wire 3 is horizontally fixed at the center of the shell 1, and the heating wire 3 is made of iron-chromium-aluminum electric heating alloy. Furthermore, the shell 1 and the battery carrier shell 10 are insulating materials to improve the safety of the electric heater.

[0030] Continue to refer to Figure 5As shown, the isolation cover 4 is fixed on the inner wall of the shell 1. A hollow reel 5 is arranged in the isolation cover 4. The electric heating film 6 is wound around the axis of the hollow reel 5 on the outer wall of the hollow reel 5, and one end of the electric heating film 6 is connected to the outer wall of the hollow reel 5 so that the hollow reel 5 can roll up the electric heating film 6. The position of the shell 1 where the electric heating film 6 is arranged is provided with an electric heating film roll-out opening 1a. The rotating shaft of the first motor 7 is connected to the hollow reel 5. Specifically, when the electric heater is heating, the control mechanism 8 controls the first motor 7 to rotate forward, and the first motor 7 rotates forward to drive the hollow reel 5 to rotate, and the hollow reel 5 rotates to make the electric heating film 6 extend from the electric heating film roll-out opening 1a to the outside of the shell 1. When the electric heating film 6 is completely extended from the outside of the shell 1, the control mechanism 8 controls the first motor 7 to stop rotating, and the electric heating film 6 begins to radiate heat to the outside air, thereby heating the room. Since the electric heating film 6 can be arranged relatively long, the heating area of ​​the electric heater can be greatly increased, thereby improving the comfort of the human body. When the electric heater does not need to provide heating, the control mechanism 8 controls the first motor 7 to reverse, and the first motor 7 reverses to drive the hollow reel 5 to rotate, and the hollow reel 5 rotates to retract the electric heating film 6 for storage. When the electric heating film 6 is completely recovered, the control mechanism 8 controls the first motor 7 to stop rotating. The setting of the electric heating film 6 can not only increase the heating area of ​​the electric heater, but also can be stored in time when it is no longer heated, thereby reducing the floor space of the electric heater. Furthermore, the isolation cover 4 is fixed to the inner side wall of the shell 1 and is located on the bottom surface of the shell 1, and the isolation cover 4 is made of acrylic plate. The isolation cover 4 is set on the bottom surface of the shell 1, so that when the electric heating film 6 provides heating, hot air will be emitted from the bottom to the top, which can not only improve the comfort of heating, but also improve the heating effect. In practical applications, the first motor 7 is a tubular motor, and the tubular motor has the advantage of small occupation area.

[0031] Further, the control mechanism 8 includes a control module, a control panel and a power switch. The control panel is fixed on the outer side wall of the housing 1. The control module is fixed below the control panel and embedded in the housing 1. The power switch is fixed on the housing 1 and is adjacent to the control panel.

[0032] In practical applications, a temperature sensor 21 is also fixed on the outer wall of the housing 1. The temperature sensor 21 can transmit the indoor temperature signal to the control module, so that the indoor temperature is displayed on the control panel for users to view in time.

[0033] Continue to refer to Figure 2As shown, at least one solar power generation mechanism 9 is fixed to the outer wall of the shell 1, and the solar power generation mechanism 9 is electrically connected to the battery 2. In the embodiment of the present application, the number of solar power generation mechanisms 9 is two. Of course, the number of solar power generation mechanisms 9 can also be three, four, etc. Specifically, the solar power generation mechanism 9 can convert solar energy into electrical energy and store it in the battery 2. When heating is needed, the electrical energy in the battery 2 can be supplied to the heating wire 3 and the electric heating film 6, thereby reducing the power consumption of the electric heater during heating, and further reducing the heating cost of the electric heater.

[0034] Continue to refer to Figure 1 As shown, a plurality of universal wheels 20 are also provided at the bottom of the housing 1. In actual use, people are mostly active in the living room during the day and go to the bedroom to rest at night, and the electric heater needs to be moved according to the movement of people, and it is very inconvenient to move the electric heater directly. The universal wheels 20 can drive the housing 1 to move, and one person can also move the electric heater, which is labor-saving and fast. Furthermore, a brake lock is also provided on the universal wheel 20, and the brake lock is turned on when the universal wheel 20 does not need to move to prevent the electric heater from moving by itself due to strong wind or uneven ground.

[0035] In practical applications, the battery 2, the heating wire 3 and the heating film 6 are all electrically connected to an external power source. The heating wire 3 and the heating film 6 are all electrically connected to the battery 2. The first motor 7 is electrically connected to the control mechanism 8. Specifically, the battery 2, the heating wire 3 and the heating film 6 are all electrically connected to an external power source through a triangular power line plug 19. The triangular power line plug 19 is exposed on the outside of the housing 1. The triangular power line plug 19 transmits the alternating current in the power grid to the heating wire 3 and the heating film 6 through a wire to convert electrical energy into thermal energy, thereby realizing indoor heating.

[0036] The embodiment of the present invention provides a photothermal-electric coupled energy-saving electric heater, which includes a shell 1, a battery 2, an electric heating wire 3, an isolation cover 4, a hollow reel 5, an electric heating film 6, a first motor 7, a control mechanism 8 and at least one solar power generation mechanism 9. A battery carrier shell 10 is provided on the outer wall of the shell 1. The battery 2 is fixed in the battery carrier shell 10. The electric heating wire 3 is fixed in the inner cavity of the shell 1. The isolation cover 4 is fixed on the inner wall of the shell 1. A hollow reel 5 is provided in the isolation cover 4. The electric heating film 6 is wound around the axis of the hollow reel 5 on the outer wall of the hollow reel 5, and one end of the electric heating film 6 is connected to the outer wall of the hollow reel 5 so that the hollow reel 5 can roll up the electric heating film 6. The position of the shell 1 where the electric heating film 6 is provided is provided with an electric heating film unwinding port 1a. The rotating shaft of the first motor 7 is connected to the hollow reel 5. At least one solar power generation mechanism 9 is fixed on the outer wall of the shell 1, and the solar power generation mechanism 9 is electrically connected to the battery 2. The battery 2, the heating wire 3 and the electric heating film 6 are all electrically connected to the external power supply. The heating wire 3 and the electric heating film 6 are all electrically connected to the battery 2. The first motor 7 is electrically connected to the control mechanism 8. In practical applications, when the electric heater is not needed for heating, the electric heater is placed outdoors, and the solar power generation mechanism 9 can generate electricity and store it in the battery 2. When heating is needed, the electricity stored in the battery 2 can be used to supply the heating wire 3 and the electric heating film 6, and there is no need to power the electric heater, which reduces the cost of using the electric heater. In addition, when the electric heater is heating, the first motor 7 is controlled to rotate by the control mechanism 8, and the rotation of the first motor 7 drives the hollow reel 5 to rotate, so that the electric heating film 6 extends from the electric heating film roll-out port 1a to the outside of the shell 1, thereby increasing the heating area of ​​the electric heater and improving the comfort of the human body.

[0037] Continue to refer to Figure 2 As shown, the photothermal-electric coupled energy-saving electric heater also includes a phase change heat storage mechanism 11. The phase change heat storage mechanism 11 includes a metal foam phase change capsule 11a, a serpentine coil 11b, a first water pump 11c, a water tank 11d, a heat sink 11e and a second water pump 11f. The water tank 11d is fixed in the inner cavity of the shell 1, and the outer wall of the water tank 11d matches the inner wall of the shell 1. A accommodating cavity is provided in the side wall of the water tank 11d. The metal foam phase change capsule 11a is arranged in a cavity formed by the side wall of the accommodating cavity on the side away from the water tank 11d, and the metal foam phase change capsule 11a tightly surrounds the heating wire 3. Specifically, the metal foam phase change capsule 11a is a 75°C foam copper phase change paraffin.

[0038] In actual application, the heat sink 11e is fixed on the outer wall of the shell 1. Specifically, the heat sink 11e is a steel-aluminum composite radiator. The second water pump 11f is fixed on the heat sink 11e. The serpentine coil 11b is fixed in the metal foam phase change capsule 11a. The first water pump 11c is fixed on the serpentine coil 11b. The water inlet of the serpentine coil 11b is connected to the water outlet of the heat sink 11e. Furthermore, the serpentine coil 11b is made of copper. The water inlet of the heat sink 11e is connected to the water outlet of the water tank 11d. The water inlet of the water tank 11d is connected to the water outlet of the serpentine coil 11b. The first water pump 11c and the second water pump 11f are both electrically connected to the control mechanism 8. In actual application, the first water pump 11c, the serpentine coil 11b, the water tank 11d, the second water pump 11f and the heat sink 11e form a closed loop, so that water can flow in the serpentine coil 11b. When the temperature of the heating wire 3 is higher than the metal foam phase change capsule 11a, the metal foam phase change capsule 11a can store heat. Therefore, the electric heater can be powered on during the low-peak period of electricity price to increase the temperature of the heating wire 3, and then the metal foam phase change capsule 11a stores the heat and exchanges heat with the water in the serpentine coil 11b, thereby increasing the water temperature in the serpentine coil 11b, and the first water pump 11c is turned on by the control mechanism 8 to store hot water in the water tank 11d. When heating is needed, the control mechanism 8 turns on the second water pump 11f, and the hot water in the water tank 11d enters the heat sink 11e, and the heat sink 11e dissipates heat to the room. Due to the closed-loop flow of water, continuous heat dissipation can be achieved. Therefore, the electric heater can provide heating without being powered on, which not only improves the heating comfort of the electric heater, but also reduces the heating cost of the electric heater.

[0039] Continue to refer to Figure 1 As shown, the photothermal-electric coupled energy-saving electric heater also includes a first insulation layer 12. The first insulation layer 12 is fixed between the housing 1 and the water tank 11d. The first insulation layer 12 can keep the water in the water tank 11d warm, preventing the heat of the water in the water tank 11d from being lost and affecting the heat dissipation effect of the heat sink 11e. Specifically, the material of the first insulation layer 12 is EPS board.

[0040] Continue to refer to Figure 2As shown, the solar power generation mechanism 9 includes two photovoltaic power generation panel groups 9a, a voltage stabilizing circuit 9b and a support bracket 9c. The photovoltaic power generation panel group 9a includes a plurality of photovoltaic power generation panels 9a1, and the plurality of photovoltaic power generation panels 9a1 are arranged in a rectangular array, and adjacent photovoltaic power generation panels 9a1 are connected to each other. The side walls of the two photovoltaic power generation panel groups 9a are connected. One end of the support bracket 9c is connected to the outer wall of the shell 1. The other end of the support bracket 9c is connected to the back of a photovoltaic power generation panel group 9a. The plurality of photovoltaic power generation panels 9a1 are electrically connected to the voltage stabilizing circuit 9b. The voltage stabilizing circuit 9b is electrically connected to the battery 2. The setting of the voltage stabilizing circuit 9b enables the current generated by the photovoltaic power generation panel 9a1 to be more stably transmitted to the battery 2 for storage. In actual applications, since the photovoltaic panel 9a1 can convert solar energy into electrical energy and store it in the battery 2, when the electric heater is not providing heating, the electric heater can be moved outdoors to enable the solar power generation mechanism 9 to generate electricity. When providing heating, the electric heater can be moved indoors to be powered by the battery 2, thereby reducing the power consumption of the electric heater and greatly reducing the heating cost of the electric heater.

[0041] Continue to refer to Figure 1 As shown, the side walls of the two photovoltaic panels 9a are connected by a first hinge 9d. One end of the support bracket 9c is connected to the outer wall of the housing 1 by a second hinge 9e. In practical applications, the photovoltaic panel group 9a is in a state of being ... Figure 1 In the state shown in , when the photovoltaic panel group 9a is not needed to generate electricity, the photovoltaic panel group 9a away from the shell 1 is first rotated to fold the two photovoltaic panel groups 9a, and then the photovoltaic panel group 9a close to the shell 1 is rotated to fold the two photovoltaic panel groups 9a to the top of the shell 1. This can not only reduce the footprint of the electric heater, but also prevent dust from accumulating on the photovoltaic panel group 9a and affecting the power generation effect of the photovoltaic panel group 9a. In addition, when the electric heater is heating, the photovoltaic panel group 9a can also be unfolded as shown in FIG. Figure 1 In the state shown in the figure, the electric heater can be used as a dining table, mahjong table, etc., which enhances the practicality of the electric heater.

[0042] Continue to refer to Figure 2As shown, the solar power generation mechanism 9 also includes a photoresistor 9f and a second motor 9g. The back of the support bracket 9c and the photovoltaic power generation panel group 9a are connected through the second motor 9g, the fixed end of the second motor 9g is set on the support bracket 9c, and the rotating shaft of the second motor 9g is connected to the back of the photovoltaic power generation panel group 9a. A photoresistor 9f is set at the edge of the two photovoltaic power generation panel groups 9a. The second motor 9g and the photoresistor 9f are both electrically connected to the control mechanism 8. Specifically, a photoresistor 9f is set below the east-west edge of the solar power generation mechanism 9, and the photoresistor 9f can send a signal to the control mechanism 8. When generating electricity outdoors, the user places the electric heater in the east-west direction, and the photoresistor 9f transmits light intensity information to the control mechanism 8. The control mechanism 8 controls the second motor 9g to rotate according to the received light intensity information. The rotation of the second motor 9g drives the photovoltaic power generation panel group 9a to rotate, thereby realizing real-time tracking of sunlight to achieve maximum utilization of sunlight, thereby improving the power generation efficiency of the photovoltaic power generation panel group 9a, while saving resources and improving economic benefits.

[0043] Continue to refer to Figure 4 As shown, the solar power generation mechanism 9 also includes a first metal foam phase change layer 9h, a capillary mesh layer 9i, an insulating cover 9j, a third water pump 9k and a first fan 9l. The first metal foam phase change layer 9h is fixedly connected to the back of each photovoltaic panel group 9a. The capillary mesh layer 9i is fixedly connected to the side of the first metal foam phase change layer 9h that is away from the photovoltaic panel group 9a. The water inlet and outlet of the capillary mesh layer 9i are both connected to the water tank 11d. A third water pump 9k is arranged on the water inlet pipe of the capillary mesh layer 9i. In actual applications, the material of the first metal foam phase change layer 9h is 30°C foam copper phase change paraffin. Specifically, the third water pump 9k, the capillary mesh layer 9i and the water tank 11d form a closed loop, so that water can circulate in the capillary mesh layer 9i. When the temperature of the photovoltaic panel group 9a is lower than the phase change temperature of the first metal foam phase change layer 9h, the water flowing in the capillary mesh layer 9i can absorb the cold energy of the phase change of the first metal foam phase change layer 9h; when the temperature of the photovoltaic panel group 9a is higher than the phase change temperature of the first metal foam phase change layer 9h, the water flowing in the capillary mesh layer 9i can absorb the heat of the phase change of the first metal foam phase change layer 9h, thereby maintaining the constant temperature of the photovoltaic panel group 9a, thereby improving the power generation efficiency of the photovoltaic panel group 9a.

[0044] Continue to refer to Figure 1As shown, an insulating cover 9j is fixedly connected to the back of each photovoltaic panel group 9a. The insulating cover 9j and the back of the photovoltaic panel group 9a form a chamber, and the first metal foam phase change layer 9h and the capillary network layer 9i are both located in the chamber. A first insulating plate 9j1 that can be opened and closed is arranged on the side of the insulating cover 9j, and a second insulating plate 9j2 that can be opened and closed is arranged on the other side of the insulating cover 9j, and the first insulating plate 9j1 and the second insulating plate 9j2 are opposite to each other. Figure 3 As shown, the first fan 91 is fixed in the chamber and is close to the first insulation board 9j1. Specifically, the insulation cover 9j is made of EPS board. In practical applications, the first metal foam phase change layer 9h can store the heat generated during the power generation process of the photovoltaic panel group 9a, and exchange heat with the water in the capillary network layer 9i, and then store the hot water in the water tank 11d. When the user does not need heating, the first insulation plate 9j1 and the second insulation plate 9j2 are both in a closed state, and the third water pump 9k is in a forward state to store the hot water in the capillary network layer 9i in the water tank 11d; when heating is needed, the first insulation plate 9j1 and the second insulation plate 9j2 are both in an open state, and the first fan 9l starts working to introduce indoor air into the insulation cover 9j from the side of the insulation cover 9j where the first insulation plate 9j1 is set, and then the control mechanism 8 controls the third water pump 9k to reverse, thereby transporting the water in the water tank 11d to the capillary network layer 9i, so that the water in the capillary network layer 9i undergoes convective heat exchange with the circulating air in the insulation cover 9j. After the heat exchange is completed, the hot air enters the room from the side of the insulation cover 9j where the second insulation plate 9j2 is set, thereby increasing the overall heating temperature of the electric heater.

[0045] Continue to refer to Figure 6 As shown, the photothermal-electric coupled energy-saving electric heater also includes a second metal foam phase change layer 13 and a second insulation layer 14. The second metal foam phase change layer 13 is fixed to the side of the electric heating film 6 that is away from the hollow scroll 5. The second insulation layer 14 is fixed to the side of the second metal foam phase change layer 13 that is away from the electric heating film 6. Specifically, the second metal foam phase change layer 13 can absorb and store the heat of the electric heating film 6, and then make full use of the heat generated by the electric heating film 6, thereby improving the thermal inertia of the electric heating film 6 for heating. Furthermore, the material of the second metal foam phase change layer 13 is 75°C foam copper phase change paraffin, and the material of the second insulation layer 14 is EPS board.

[0046] In practical applications, the photothermal-electric coupled energy-saving electric heater further includes a roller shutter support frame 22, which is fixed to the side of the second insulation layer 14 away from the second metal foam phase change layer 13. The roller shutter support frame 22 can support the electric heating film 6 to prevent the electric heating film 6 from being damaged.

[0047] Continue to refer to Figure 7As shown, the photothermal-electric coupled energy-saving electric heater also includes an air inlet 1b, an air outlet 1c and a second fan 15. The air inlet 1b and the air outlet 1c are both arranged on the side wall of the housing 1. And the air outlet 1c is located on the opposite side of the air inlet 1b. The axis of the air inlet 1b coincides with the axis of the hollow scroll 5. The second fan 15 is fixed on the side wall of the housing 1 where the isolation cover 4 is arranged, and is located on the same side as the air inlet 1b. Specifically, since the electric heating film 6 is wound around the outer wall of the hollow reel 5 and the hollow reel 5 is connected to the rotating shaft of the first motor 7, during the heating process, the temperature of the hollow reel 5 will be relatively high, and the temperature inside the isolation cover 4 will also be relatively high. Therefore, air is introduced into the hollow part of the isolation cover 4 and the hollow reel 5 through the air inlet 1b and the second fan 15, and then the air flowing out from the air outlet 1c will carry the heat of the hollow reel 5 and the isolation cover 4, which not only makes good use of the heat of the hollow reel 5, but also improves the heating effect and comfort of the electric heater.

[0048] In practical applications, the photothermal-electric coupled energy-saving electric heater further includes an LED lamp 16 and a photocatalyst 17. The LED lamp 16 is fixed in the inner cavity of the isolation cover 4. The photocatalyst 17 is arranged on the inner surface of the isolation cover 4. The LED lamp 16 is electrically connected to the battery 2. Figure 8 As shown, the LED lamp 16 is fixed on the top of the inner cavity of the isolation cover 4 to increase the irradiation range of the LED lamp 16. The photocatalyst 17 is evenly sprayed on the inner surface of the isolation cover 4. Under the action of the LED lamp 16, the photocatalyst 17 can oxidize and decompose various organic compounds and some inorganic substances in the air entering the isolation cover 4 from the air inlet 1b, destroy the cell membrane of bacteria and the protein of viruses to kill bacteria, and decompose organic pollutants into pollution-free water and carbon dioxide, so that the air entering the room from the air outlet 1c is relatively clean, thereby improving the indoor air quality, not only improving the indoor comfort, but also benefiting the physical and mental health of users. Further, the photocatalyst 17 is titanium dioxide.

[0049] Continue to refer to Figure 1 As shown, the photothermal-electric coupled energy-saving electric heater also includes a negative ion generator 18. The negative ion generator 18 is fixed in the battery carrier shell 10. Since the electric heater is generally placed indoors, in order to avoid heat loss during heating, the doors and windows in the room are closed, which will lead to low indoor air quality and low oxygen content. The negative ion generator 18 can effectively activate the oxygen molecules in the air, making the oxygen molecules more active and easier to be absorbed by the human body, thereby effectively preventing the occurrence of diseases.

[0050] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0051] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.

Claims

1. A photothermal-electric coupled energy-saving electric heater, characterized in that: It comprises a housing (1), a storage battery (2), a heating wire (3), an isolation cover (4), a hollow reel (5), an electric heating film (6), a first motor (7), a control mechanism (8), and at least one solar power generation mechanism (9); A battery carrier shell (10) is provided on the outer side wall of the shell (1); the battery (2) is fixed in the battery carrier shell (10); and the heating wire (3) is fixed in the inner cavity of the shell (1); The isolation cover (4) is fixed on the inner wall of the shell (1); the hollow reel (5) is arranged inside the isolation cover (4); the electric heating film (6) is wound around the axis of the hollow reel (5) and on the outer wall of the hollow reel (5), and one end of the electric heating film (6) is connected to the outer wall of the hollow reel (5), so that the hollow reel (5) can roll up and unwind the electric heating film (6); The housing (1) is provided with an electric heating film unwinding opening (1a) at a position where the electric heating film (6) is provided; The rotating shaft of the first motor (7) is connected to the hollow reel (5); At least one of the solar power generation mechanisms (9) is fixed to the outer wall of the housing (1), and the solar power generation mechanism (9) is electrically connected to the storage battery (2); The storage battery (2), the electric heating wire (3) and the electric heating film (6) are all electrically connected to an external power source; The electric heating wire (3) and the electric heating film (6) are both electrically connected to the storage battery (2); The first motor (7) is electrically connected to the control mechanism (8).

2. The photothermal-electric coupled energy-saving electric heater according to claim 1 is characterized in that: It also includes a phase change heat storage mechanism (11); The phase-change heat storage mechanism (11) comprises a metal foam phase-change capsule (11a), a serpentine coil (11b), a first water pump (11c), a water tank (11d), a heat sink (11e) and a second water pump (11f); The water tank (11d) is fixed in the inner cavity of the shell (1), and the outer wall of the water tank (11d) matches the inner wall of the shell (1); a receiving cavity is provided in the side wall of the water tank (11d); the metal foam phase change capsule (11a) is provided in a cavity formed by the side wall of the receiving cavity on a side away from the water tank (11d), and the metal foam phase change capsule (11a) tightly surrounds the heating wire (3); The heat sink (11e) is fixed on the outer side wall of the housing (1); the second water pump (11f) is fixed on the heat sink (11e); The serpentine coil (11b) is fixed in the metal foam phase change capsule (11a); the first water pump (11c) is fixed on the serpentine coil (11b); the water inlet of the serpentine coil (11b) is connected to the water outlet of the heat sink (11e); the water inlet of the heat sink (11e) is connected to the water outlet of the water tank (11d); the water inlet of the water tank (11d) is connected to the water outlet of the serpentine coil (11b); The first water pump (11c) and the second water pump (11f) are both electrically connected to the control mechanism (8).

3. The photothermal-electric coupled energy-saving electric heater according to claim 2 is characterized in that: Also includes a first thermal insulation layer (12); The first heat insulating layer (12) is fixed between the shell (1) and the water tank (11d).

4. The photothermal-electric coupled energy-saving electric heater according to claim 1, characterized in that: The solar power generation mechanism (9) comprises two photovoltaic power generation panel groups (9a), a voltage stabilizing circuit (9b) and a supporting bracket (9c); The photovoltaic power generation panel group (9a) comprises a plurality of photovoltaic power generation panels (9a1), the plurality of photovoltaic power generation panels (9a1) are arranged in a rectangular array, and adjacent photovoltaic power generation panels (9a1) are connected to each other; The side walls of the two photovoltaic panel groups (9a) are connected; One end of the support bracket (9c) is connected to the outer wall of the shell (1); the other end of the support bracket (9c) is connected to the back of one of the photovoltaic panel groups (9a); The plurality of photovoltaic power generation panels (9a1) are all electrically connected to the voltage stabilizing circuit (9b); and the voltage stabilizing circuit (9b) is electrically connected to the storage battery (2).

5. The photothermal-electric coupled energy-saving electric heater according to claim 4 is characterized in that: The side walls of the two photovoltaic panel groups (9a) are connected via a first hinge (9d); and one end of the support bracket (9c) is connected to the outer wall of the housing (1) via a second hinge (9e).

6. The photothermal-electric coupled energy-saving electric heater according to claim 4, characterized in that: The solar power generation mechanism (9) further comprises a photoresistor (9f) and a second motor (9g); The support bracket (9c) and the back of the photovoltaic panel group (9a) are connected via the second motor (9g); a fixed end of the second motor (9g) is arranged on the support bracket (9c); and a rotating shaft of the second motor (9g) is connected to the back of the photovoltaic panel group (9a); A photoresistor (9f) is disposed at the edge of the two photovoltaic panel groups (9a); The second motor (9g) and the photoresistor (9f) are both electrically connected to the control mechanism (8).

7. The photothermal-electric coupled energy-saving electric heater according to claim 4, characterized in that: The solar power generation mechanism (9) further comprises a first metal foam phase change layer (9h), a capillary network layer (9i), a heat insulation cover (9j), a third water pump (9k) and a first fan (9l); The first metal foam phase change layer (9h) is fixedly connected to the back of each photovoltaic panel group (9a); the capillary network layer (9i) is fixedly connected to the side of the first metal foam phase change layer (9h) facing away from the photovoltaic panel group (9a); the water inlet and the water outlet of the capillary network layer (9i) are both connected to the water tank (11d); and the third water pump (9k) is provided on the water inlet pipe of the capillary network layer (9i); A heat insulating cover (9j) is fixedly connected to the back of each photovoltaic power generation panel group (9a); the heat insulating cover (9j) and the back of the photovoltaic power generation panel group (9a) form a chamber, and the first metal foam phase change layer (9h) and the capillary network layer (9i) are both located in the chamber; a first heat insulating plate (9j1) that can be opened and closed is arranged on the side of the heat insulating cover (9j), and a second heat insulating plate (9j2) that can be opened and closed is arranged on the other side of the heat insulating cover (9j), and the first heat insulating plate (9j1) and the second heat insulating plate (9j2) are opposite to each other; The first fan (9l) is fixed in the chamber and is close to the first insulation board (9j1).

8. The photothermal-electric coupled energy-saving electric heater according to claim 1, characterized in that: It also includes a second metal foam phase change layer (13) and a second thermal insulation layer (14); The second metal foam phase change layer (13) is fixed to a side of the electric heating film (6) that is away from the hollow scroll (5); and the second heat insulating layer (14) is fixed to a side of the second metal foam phase change layer (13) that is away from the electric heating film (6).

9. The photothermal-electric coupled energy-saving electric heater according to claim 1, characterized in that: It also includes an air inlet (1b), an air outlet (1c) and a second fan (15); The air inlet (1b) and the air outlet (1c) are both arranged on the side wall of the shell (1); and the air outlet (1c) is located on the opposite side of the air inlet (1b); The axis of the air inlet (1b) coincides with the axis of the hollow scroll (5); The second fan (15) is fixed on the side wall of the housing (1) where the isolation cover (4) is provided, and is located on the same side as the air inlet (1b).

10. The photothermal-electric coupled energy-saving electric heater according to claim 9, characterized in that: Also included is an LED lamp (16) and a photocatalyst (17); The LED lamp (16) is fixed in the inner cavity of the isolation cover (4); the photocatalyst (17) is arranged on the inner surface of the isolation cover (4); The LED lamp (16) is electrically connected to the storage battery (2).

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