CN209030123U - Fireplace Thermogenerator - Google Patents

Abstract

This application discloses a kind of fireplace type thermoelectric generators, comprising: fireplace main body has combustion chamber and hot-air channel；Chimney breast, lower end and combustion chamber；Caliduct, housing form heat dissipation channel on chimney breast between chimney breast, and heat dissipation channel is connected to hot-air channel；Heat-conducting plate, one end are located inside chimney breast, and the other end is pierced by chimney breast, are located in heat dissipation channel；Thermoelectric generation film is located in heat dissipation channel, and one end is bonded with heat-conducting plate；Radiator is located in heat dissipation channel, is bonded with thermoelectric generation film backwards to one end of heat-conducting plate, for radiating to thermoelectric generation film；Radiator fan is arranged in heat dissipation channel, for flowing the air in heat dissipation channel from top to bottom；Controller is electrically connected with thermoelectric generation film.The application can be generated electricity by installing thermoelectric generation film in heat dissipation channel using the thermal energy of waste heat air；By the cooperation of radiator fan, heat dissipation channel and hot-air channel, it is capable of providing hot wind.

Description

Fireplace Thermogenerator

technical field

The utility model relates to a power generating device, in particular to a fireplace type thermoelectric generator.

Background technique

In today's world, a large part of people choose fireplaces to heat their homes in cold seasons, especially in western countries, the use of fireplaces is very popular.

The existing fireplace can only be used for heating, and cannot generate electricity. A large part of the heat generated by the combustion of the solid fuel in the fireplace will be discharged outdoors along with the flue gas, which has not been well used.

Utility model content

Aiming at the above problems and overcoming at least one deficiency, the utility model proposes a fireplace type thermoelectric generator.

The technical scheme adopted by the utility model is as follows:

A fireplace type thermoelectric generator, comprising:

The main body of the fireplace has a combustion chamber, and the interior of the side wall of the main body of the fireplace also has a hot air channel;

The chimney pipe, the lower end is communicated with the combustion chamber;

The heating duct is covered on the chimney duct and forms a cooling channel with the chimney duct, and the cooling channel is communicated with the hot air channel;

One end of the heat conducting plate is located inside the chimney pipe, and the other end passes through the chimney pipe and is located in the heat dissipation channel;

The thermoelectric power generation sheet is located in the heat dissipation channel, and one end is attached to the heat conduction plate;

The heat dissipation device is located in the heat dissipation channel, and is attached to the end of the thermoelectric power generation sheet facing away from the heat conduction plate, and is used to dissipate heat for the thermoelectric power generation sheet;

A cooling fan, arranged in the cooling channel, is used to make the air in the cooling channel flow from top to bottom;

The controller is electrically connected with the thermoelectric power generation sheet.

The Seebeck effect is a thermoelectric phenomenon in which the voltage difference between two substances is caused by the temperature difference between two different electrical conductors or semiconductors. Thermoelectric sheets use the Seebeck effect to convert thermal energy into electrical energy.

The power generation principle of the present application is as follows: the high-temperature flue gas generated by the combustion of biomass fuel in the combustion chamber flows into the chimney pipe, the heat-conducting plate absorbs the heat of the high-temperature flue gas, the two sides of the thermoelectric power generation sheet are respectively matched with the heat-conducting plate and the heat-dissipating device, and the heat-conducting plate The temperature of one side is high, and the temperature of one side of the heat sink is low, and a temperature difference is formed between the two ends of the thermoelectric power generation sheet, so that a voltage difference can be generated, so that the controller electrically connected with the thermoelectric power generation sheet can supply power to the outside; The air flows from top to bottom, which can cooperate with the heat dissipation device to increase the heat dissipation efficiency, and at the same time, the hot air in the heat dissipation channel and the hot air channel can be discharged into the room, that is, hot air can be provided.

In practice, the air outlets of the hot air channel can be located on both sides of the combustion chamber. In actual use, the front and back sides of the thermoelectric power generation sheet can be coated with a layer of thermally conductive silicone grease to reduce thermal resistance.

In one embodiment of the present invention, the controller includes a first voltage stabilizer module and a second voltage stabilizer module in parallel, wherein the first voltage stabilizer module is used to supply power to internal electrical components, and the second voltage stabilizer module is used for power supply. Modules are used to supply power to external powered components.

The internal electrical components are the components that the fireplace-type thermoelectric generator itself needs to consume, such as cooling fans. By supplying power to the cooling fan, it is possible to prevent damage to the thermoelectric sheet and the like due to excessive temperature.

In one embodiment of the present invention, a protection circuit, an MPPT controller and a lithium battery are also connected in series on the second voltage regulator module. In this way, when the external electrical components are overloaded (excessive current) or the circuit is short-circuited, the protection circuit can cut off the power supply of the branch, thereby not only protecting the external electrical components, but also ensuring that the first voltage regulator module branch uses electricity. normal use of components. In practice, the protection circuit is a relay or a fuse.

In one embodiment of the present invention, the heat dissipation device includes a heat dissipation plate and fins mounted on the heat dissipation plate at intervals; the fins are arranged vertically, and the heat dissipation fan is arranged on the upper part of the fins.

In actual use, in order to increase the air flow between the fins, the side of the fins away from the heat sink can be covered.

In one of the embodiments of the present invention, the chimney pipe is provided with a vertically arranged clamping groove, the heat conducting plate is formed by bending a copper plate, and the heat conducting plate includes a heat absorbing part located in the chimney pipe, and a heat sink located in the heat dissipation channel. In the heat transfer part, the heat conduction plate is vertically inserted into the corresponding card slot, and the thermoelectric power generation sheet abuts against the heat transfer part.

The thermally conductive plate is preferably a copper plate or a chrome pick copper plate.

In one of the embodiments of the present invention, there are a plurality of said card slots, which are evenly distributed around the axis of the chimney pipe; two heat-conducting plates are installed on each card-slot, and the two heat-conducting plates are connected to each other around the chimney through fasteners. The pipes are fixed, and the end faces of the corresponding two heat transfer parts are located on the same plane.

On the one hand, this structure can absorb more waste heat of flue gas, and on the other hand, more thermoelectric power generation sheets can be installed, so as to generate greater thermoelectric efficiency.

In one embodiment of the present invention, the upper end of the chimney pipe extends to the outdoors, the upper end of the heating pipe is open, and the open end of the heating pipe is located indoors; for placing solid fuels.

In one embodiment of the present utility model, the lower part of the grate is slidably installed with an ash storage drawer, which is used for receiving the ash after the solid fuel has been completely burned.

In one embodiment of the present invention, the main body of the fireplace has a first flange, the lower part of the heating pipe has a second flange, and the first flange and the second flange are fixed by fasteners.

In one embodiment of the present invention, the material of the main body of the fireplace, the chimney pipe and the heating pipe is stainless steel.

The beneficial effects of the utility model are as follows: the high-temperature flue gas generated by the combustion of biomass fuel in the combustion chamber flows into the chimney pipe, the heat-conducting plate absorbs the heat of the high-temperature flue gas, and the two sides of the thermoelectric power generation sheet are respectively matched with the heat-conducting plate and the heat-dissipating device, and the heat-conducting plate is matched with the heat-conducting plate and the heat-dissipating device respectively. The temperature on one side of the board is high, and the temperature on the side of the heat sink is low, and a temperature difference is formed between the two ends of the thermoelectric power generation sheet, so that a voltage difference can be generated, so that the controller electrically connected with the thermoelectric power generation sheet can supply power to the outside; The air inside flows from top to bottom, which can cooperate with the heat dissipation device to increase the heat dissipation efficiency, and at the same time, the air in the heat dissipation channel and the hot air channel can be discharged into the room, that is, hot air can be provided.

Description of drawings:

Fig. 1 is the structural representation of the fireplace type thermoelectric generator of the present utility model;

Fig. 2 is the top view of the fireplace type thermoelectric generator of the present utility model;

3 is a partial exploded view of the fireplace type thermoelectric generator of the present invention;

Figure 4 is a functional block diagram of the controller.

The reference numbers in the figure are:

1. The main body of the fireplace; 2. The combustion chamber; 3. The grate; 4. The hot air passage; 5. The chimney pipe; 6. The heating pipe; 7. The heat dissipation passage; ; 11, cooling fan; 12, cooling device; 13, fins; 14, heat transfer part; 15, heat absorption part; 16, second flange; 17, first flange; 18, first voltage stabilization module; 19. Second voltage regulator module; 20. Internal electrical components; 21. Protection circuit; 22. MPPT controller; 23. Lithium battery; 24. External electrical components.

Detailed ways:

The present utility model will be described in detail below with reference to the accompanying drawings.

As shown in Figures 1, 2 and 3, a fireplace-type thermoelectric generator includes:

The fireplace main body 1 has a combustion chamber 2, and the interior of the side wall of the fireplace main body 1 also has a hot air channel 4;

The chimney pipe 5, the lower end is communicated with the combustion chamber 2;

The heating pipe 6, which is jacketed on the chimney pipe 5, forms a heat dissipation channel 7 with the chimney pipe 5, and the heat dissipation channel 7 is communicated with the hot air channel 4;

One end of the heat conducting plate 9 is located inside the chimney duct 5, and the other end penetrates the chimney duct 5 and is located in the heat dissipation channel 7;

The thermoelectric power generation sheet 10 is located in the heat dissipation channel 7, and one end is attached to the heat conduction plate 9;

The heat dissipation device 12 is located in the heat dissipation channel 7, and is attached to the end of the thermoelectric power generation sheet 10 facing away from the heat conduction plate 9, and is used to dissipate heat to the thermoelectric power generation sheet 10;

The cooling fan 11 is arranged in the cooling channel 7, and is used to make the air in the cooling channel 7 flow from top to bottom;

The controller is electrically connected to the thermoelectric generating sheet 10 .

The Seebeck effect is a thermoelectric phenomenon in which the voltage difference between two substances is caused by the temperature difference between two different electrical conductors or semiconductors. The thermoelectric power generation sheet 10 uses the Seebeck effect to convert thermal energy into electrical energy.

The power generation principle of the present application is as follows: the high-temperature flue gas generated by the combustion of biomass fuel in the combustion chamber 2 flows into the chimney pipe 5, the heat-conducting plate 9 absorbs the heat of the high-temperature flue gas, and the two sides of the thermoelectric power generation sheet 10 are respectively connected to the heat-conducting plate 9 and the heat dissipation plate 9. The device 12 is matched, and the temperature on one side of the heat-conducting plate 9 is high, and the temperature on the side of the heat dissipation device 12 is low, and a temperature difference is formed between the two ends of the thermoelectric power generation sheet 10, so that a voltage difference can be generated, so that the controller electrically connected to the thermoelectric power generation sheet 10 can externally Power supply; by setting the cooling fan 11, the air in the heat dissipation channel 7 can flow from top to bottom, which can cooperate with the heat dissipation device 12 to increase the heat dissipation efficiency, and at the same time, the hot air in the heat dissipation channel 7 and the hot air channel 4 can be discharged into the room, that is, it can provide hot air.

In practice, the air outlets of the hot air channel 4 may be located on both sides of the combustion chamber 2 . In actual application, the front and back sides of the thermoelectric power generation sheet 10 may be coated with a layer of thermally conductive silicone grease to reduce thermal resistance.

As shown in FIG. 4 , in this embodiment, the controller includes a first voltage stabilization module 18 and a second voltage stabilization module 19 connected in parallel, wherein the first voltage stabilization module 18 is used to supply power to the internal electrical components 20 , and the second voltage stabilization module 18 The voltage-stabilizing module 19 is used to supply power to the external electrical components 24 .

The internal electrical components 20 are components that the fireplace-type thermoelectric generator itself needs to consume, such as the cooling fan 11 . By supplying power to the cooling fan 11 , the thermoelectric sheet 10 and the like can be prevented from being damaged due to excessive temperature.

As shown in FIG. 4 , in this embodiment, a protection circuit 21 , an MPPT controller 22 and a lithium battery 23 are connected in series with the second voltage regulator module 19 . In this way, when the external power component 24 is overloaded (excessive current) or the circuit is short-circuited, the protection circuit 21 can cut off the power supply of the branch, so as to protect the external power component 24 and ensure the first voltage stabilization module 18 The normal use of electrical components on the branch. In practice, the protection circuit 21 is a relay or a fuse.

As shown in FIG. 3 , in this embodiment, the heat dissipation device 12 includes a heat dissipation plate (not shown in the figure) and fins 13 mounted on the heat dissipation plate at intervals; the fins 13 are arranged vertically, and the cooling fan 11 is arranged on the fins upper part of sheet 13. In practical application, in order to increase the air flow between the fins 13 , the side of the fins 13 away from the heat dissipation plate can be covered.

As shown in FIGS. 1 and 2 , in this embodiment, the chimney duct 5 is provided with a vertically arranged clamping slot 8 , the heat-conducting plate 9 is formed by bending a copper plate, and the heat-conducting plate 9 includes a heat absorbing portion 15 located in the chimney duct 5 . , and the heat transfer part 14 located in the heat dissipation channel 7 , the heat conduction plate 9 is vertically inserted into the corresponding card slot 8 , and the thermoelectric power generation sheet 10 abuts against the heat transfer part 14 . The thermally conductive plate 9 is preferably a copper plate or a chrome pick copper plate.

As shown in Figures 2 and 3, in this embodiment, there are a plurality of card slots 8, which are evenly distributed around the axis of the chimney duct 5; The end faces of the corresponding two heat transfer parts 14 are located on the same plane by being fixed to the surrounding chimney pipe 5 by fasteners.

On the one hand, this structural form can absorb more waste heat of flue gas, and on the other hand, more thermoelectric power generation sheets 10 can be installed, so as to generate greater thermoelectric efficiency.

In actual use, the upper end of the chimney duct 5 extends to the outdoors, the upper end of the heating duct 6 is open, and the open end of the heating duct 6 is located indoors.

As shown in FIG. 1 , in this embodiment, a grate 3 is installed at the lower part of the combustion chamber 2 , and the grate 3 is used for placing solid fuel.

In actual use, the lower part of the grate 3 is slidably installed with an ash-holding drawer (not shown in the figure), and the ash-holding drawer is used to hold the ash after the solid fuel is completely burned.

As shown in FIG. 3 , in this embodiment, the fireplace main body 1 has a first flange 17 , the lower part of the heating pipe 6 has a second flange 16 , and the first flange 17 and the second flange 16 are fixed by fasteners.

In this embodiment, the fireplace body 1 , the chimney duct 5 and the heating duct 6 are made of stainless steel.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of patent protection of the present invention. Any equivalent structural transformation made by using the contents of the description and accompanying drawings of the present invention is directly or indirectly applied to other related The technical field is similarly included in the protection scope of the present invention.

Claims (10)

1. a kind of fireplace type thermoelectric generator characterized by comprising

Fireplace main body has combustion chamber, also has hot-air channel inside fireplace main body wall；

Chimney breast, lower end and combustion chamber；

Caliduct, housing form heat dissipation channel, the heat dissipation channel and the heat on chimney breast between chimney breast The connection of wind channel；

Heat-conducting plate, one end are located inside chimney breast, and the other end is pierced by chimney breast, are located in heat dissipation channel；

Thermoelectric generation film is located in heat dissipation channel, and one end is bonded with heat-conducting plate；

Radiator is located in heat dissipation channel, is bonded with thermoelectric generation film backwards to one end of heat-conducting plate, for thermoelectric generation film Heat dissipation；

Radiator fan is arranged in heat dissipation channel, for flowing the air in heat dissipation channel from top to bottom；

Controller is electrically connected with the thermoelectric generation film.

2. fireplace type thermoelectric generator as described in claim 1, which is characterized in that controller includes the first pressure stabilizing mould in parallel Block and the second Voltage stabilizing module, wherein first Voltage stabilizing module is used for power inside power elements, and second Voltage stabilizing module is used In to external electricity consumption power elements.

3. fireplace type thermoelectric generator as claimed in claim 2, which is characterized in that be also in series with protection on the second Voltage stabilizing module Circuit, MPPT controller and lithium battery.

4. fireplace type thermoelectric generator as claimed in claim 2, which is characterized in that the radiator include heat sink and It is spaced the fin being mounted on heat sink；The fin is vertically arranged, and the top of fin is arranged in the radiator fan.

5. fireplace type thermoelectric generator as described in claim 1, which is characterized in that have on the chimney breast and be vertically arranged Card slot, the heat-conducting plate is bent to form by copper sheet, and heat-conducting plate includes the endothermic section in chimney breast, and is located at heat dissipation The heat transfer part in channel, heat-conducting plate are inserted vertically into corresponding card slot, and the thermoelectric generation film leans with heat transfer part.

6. fireplace type thermoelectric generator as claimed in claim 5, which is characterized in that the card slot have it is multiple, around chimney breast Axis be uniformly distributed；It is respectively mounted on each card slot there are two heat-conducting plate, two heat-conducting plates pass through fastener and around chimney breast Fixed, the end face of corresponding two heat transfer parts is located in approximately the same plane.

7. fireplace type thermoelectric generator as described in claim 1, which is characterized in that the upper end of chimney breast extends to outdoor, The upper end opening of the caliduct, and the open end of caliduct is located at interior；The combustion chamber lower part is equipped with fire grate, institute Fire grate is stated for placing solid fuel.

8. fireplace type thermoelectric generator as claimed in claim 7, which is characterized in that the lower slide of fire grate is equipped with Sheng ash and takes out Drawer contains lime-ash of the grey drawer for access solid fuel ignition after complete.

9. fireplace type thermoelectric generator as described in claim 1, which is characterized in that the fireplace main body has first flange, The caliduct lower part has second flange, and first flange and second flange are fixed by fastener.

10. fireplace type thermoelectric generator as described in claim 1, which is characterized in that fireplace main body, chimney breast and heating The material of pipeline is stainless steel.