A thermoelectric generator

Abstract

The present invention discloses a thermoelectric generator and its heat collection structure and burner, which relates to the field of thermoelectric power generation technology, including a combustion chamber and a preheating part, wherein the preheating part is provided with a plurality of fuel channels and a fuel port connected to the fuel channel; the fuel port is connected to the combustion chamber; away from the fuel port, the combustion chamber space tends to become larger. In view of the technical problem of low energy density of the thermoelectric generator, by improving the heat collection structure and the structure of the burner, it can fully burn and improve the conversion efficiency and energy density.

Description

Technical Field

[0001] The invention relates to the technical field of temperature difference power generation, and in particular to a temperature difference generator. Background Art

[0002] Compared with lithium battery power supply systems, thermoelectric generators are often used to provide power in extreme outdoor situations. They have the advantages of small size and high energy density. Thermoelectric generators convert heat into electrical energy by recycling heat, but there are still technical problems such as low heat conversion efficiency and low energy density. When thermoelectric generators are used for outdoor electricity, there are often technical problems such as insufficient production capacity and difficulty in meeting the power endurance requirements of various electrical products. Summary of the invention

[0003] 1. Technical problem to be solved by the invention

[0004] In view of the technical problem of low energy density of the thermoelectric generator, the present invention provides a thermoelectric generator which utilizes the structural improvement of the heat collection structure and the burner to achieve full combustion and improve the conversion efficiency and energy density.

[0005] 2. Technical solution

[0006] To solve the above problems, the technical solution provided by the present invention is:

[0007] A burner comprises a combustion chamber and a preheating part, wherein the preheating part is provided with a plurality of fuel channels and a fuel port connected to the fuel channels; the fuel port is connected to the combustion chamber; away from the fuel port, the combustion chamber space tends to become larger.

[0008] Optionally, a fuel supply portion is also included, and the fuel supply portion is connected to the fuel channel.

[0009] Optionally, first heat transfer elements are provided on both sides of the preheating section.

[0010] Optionally, it includes a first side plate, a second plate and a third plate, wherein the second plate and the third plate are respectively connected to two sides of the preheating part, and the first side plate connects the second plate, the preheating part and the third plate to form the combustion chamber.

[0011] Optionally, the number of combustion chambers is more than 3.

[0012] Optionally, the outer sides of the combustion chamber and the preheating part are both provided with a first fixing part for fixing the burner.

[0013] Optionally, a second heat transfer element is provided in the combustion chamber.

[0014] A heat collecting structure comprises heat collecting plates arranged outside both sides of a burner as described in any one of the above items, wherein a third heat transfer element is arranged on a side of the heat collecting plate close to the burner.

[0015] Optionally, a baffle plate for fixedly connecting the burner and the heat collecting plate is provided at one end of the heat collecting plate away from the preheating part, and a heat transfer channel is provided between the baffle plate and the combustion chamber.

[0016] A thermoelectric generator comprises a thermoelectric power generation sheet and a heat dissipation device which are sequentially arranged outside a heat collection structure as described above, wherein the thermoelectric power generation sheet is electrically connected to a controller.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0019] (1) The embodiment of the present application proposes a thermoelectric generator and its heat collection structure and burner. After the fuel is preheated through multiple fuel channels in the preheating part, it enters the combustion chamber through the fuel port. The space of the combustion chamber is designed to be consistent with the shape of the space required for flame combustion, that is, away from the fuel port, the combustion chamber space tends to become larger, thereby ensuring that the fuel entering the combustion chamber can be fully burned in the space of the combustion chamber and fully release heat; so that the thermoelectric generator can absorb more heat, thereby promoting heat conversion rate and improving energy density.

[0020] (2) A thermoelectric generator and its heat collection structure and burner proposed in an embodiment of the present application, wherein the first heat transfer member is evenly distributed on both sides of the preheating part, and is used to heat the fuel passing through the fuel channel. The first heat transfer member plays a role in heat transfer and heat conduction, and introduces heat to the preheating part, thereby preheating the fuel passing through the fuel channel to approach the ignition point of the fuel, so that the fuel can be fully burned quickly after entering the combustion chamber. The first heat transfer member and the second heat transfer member can be ribs, and the ribs can be circular, elliptical, square, triangular, polygonal, or other irregular shapes; the first heat transfer member and the second heat transfer member can also be convex, such as circular convex, square convex, irregular convex, etc. In actual application, the shape of the first heat transfer member and the second heat transfer member can be comprehensively considered based on cost, finished product difficulty, mold opening difficulty, heat conduction effect and cost performance.

[0021] (3) The embodiment of the present application proposes a thermoelectric generator and its heat collection structure and burner, wherein the combustion chambers are 3, 4 or 5 in total. When the combustion chambers are 3, they include a first combustion chamber, a second combustion chamber and a third combustion chamber that are connected in sequence, and the space occupied by the first combustion chamber, the second combustion chamber and the third combustion chamber gradually increases; the shape space of the first combustion chamber, the second combustion chamber and the third combustion chamber can be square, arc, etc. In actual use, the design of the combustion chamber can comprehensively consider the fuel type, fuel flow rate, pressure and other parameters, and combine the combustion flame characteristics of the corresponding fuel to set the space size of the combustion chamber according to empirical values.

[0022] (4) The embodiment of the present application proposes a thermoelectric generator and its heat collection structure and burner, wherein the second heat transfer member is evenly distributed in the combustion chamber, that is, the second heat transfer member is evenly distributed on the inner side of the second plate and the inner side of the third plate, and the second heat transfer member plays a role in heat transfer and heat conduction, and introduces the heat generated by the full combustion of the fuel to the inner wall of the combustion chamber, which can reduce heat loss compared to relying solely on gas heat conduction. After the fuel is fully burned, the gas contained in the combustion chamber is less and cannot play a full heat conduction role. The heat inside the combustion chamber cannot be conducted out in time. The second heat transfer member arranged in the combustion chamber can be used to conduct the heat in time, reduce heat loss, increase heat conduction speed, and thus improve conversion rate.

[0023] (5) The embodiment of the present application proposes a thermoelectric generator and its heat collection structure and burner, wherein the heat collecting plate is in full contact with the outside of both sides of the burner, thereby collecting the heat generated by the full combustion of the fuel, thereby facilitating the rapid, timely and lossless conversion of thermal energy into electrical energy.

[0024] (6) The embodiment of the present application proposes a thermoelectric generator and its heat collection structure and burner, wherein the baffle is used to fix the burner and the heat collecting plate on the one hand, and to cooperate with the combustion chamber to form the heat transfer channel on the other hand. After the fuel is fully burned in the combustion chamber, on the one hand, it is transferred to the third heat transfer member on the heat collecting plate outside the combustion chamber through the heat conduction and heat transfer of the combustion chamber itself, and on the other hand, the flue gas with residual heat generated by the full combustion of the fuel in the combustion chamber is transferred to the outside of the combustion chamber, that is, the space between the combustion chamber and the heat collecting plate, through the heat transfer channel, so that the third heat transfer member can fully absorb the heat and transfer it to the heat collecting plate. The baffle is provided with a plurality of third fixing holes, and the matching place between the heat collecting plate and the baffle is provided with a plurality of fourth fixing holes, and the third fixing holes match the fourth fixing holes, so as to fix the baffle and the heat collecting plate together through fixing members such as screws, bolts or screws. A second fixing part is provided at a position of the heat collecting plate corresponding to the first fixing part of the burner, and a plurality of second fixing holes matching the first fixing holes are provided on the second fixing part, so as to match the first fixing holes and to facilitate fixing the burner and the heat collecting plate together through similar connecting parts such as screws, bolts or screws, thereby achieving good heat transfer and heat conduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A cross-sectional view of a burner proposed in an embodiment of the present invention.

[0026] Figure 2 This is one of the schematic diagrams of a three-dimensional structure of a burner proposed in an embodiment of the present invention.

[0027] Figure 3 This is a second schematic diagram of a three-dimensional structure of a burner proposed in an embodiment of the present invention.

[0028] Figure 4 This is a schematic structural diagram of a fuel supply unit of a burner proposed in an embodiment of the present invention.

[0029] Figure 5 A cross-sectional stereoscopic view of a burner proposed in an embodiment of the present invention.

[0030] Figure 6 A three-dimensional diagram of a heat collection structure proposed in an embodiment of the present invention.

[0031] Figure 7 This is one of the cross-sectional stereoscopic views of a thermoelectric generator proposed in an embodiment of the present invention.

[0032] Figure 8 This is a cross-sectional view of a thermoelectric generator proposed in an embodiment of the present invention.

[0033] Fig. 9This is a second cross-sectional stereoscopic diagram of a thermoelectric generator proposed in an embodiment of the present invention.

[0034] Fig.10 This is a third cross-sectional stereoscopic diagram of a thermoelectric generator proposed in an embodiment of the present invention.

[0035] Fig.11 A three-dimensional diagram of a thermoelectric generator proposed in an embodiment of the present invention.

[0036] Fig.12 A schematic diagram of the structure of a thermoelectric power generation sheet of a thermoelectric generator proposed in an embodiment of the present invention.

[0037] Fig.13 This is a schematic structural diagram of a liquid cooling module of a thermoelectric generator proposed in an embodiment of the present invention.

[0038] Fig.14 A schematic diagram of a baffle structure of a thermoelectric generator proposed in an embodiment of the present invention.

[0039] Fig.15 This is a three-dimensional cross-sectional view of a combustion chamber of a burner proposed in an embodiment of the present invention. DETAILED DESCRIPTION

[0040] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.

[0041] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the invention are shown in the accompanying drawings. The words "first", "second", etc. described in the present invention are set for the convenience of describing the technical solution of the present invention, and have no specific limiting effect. They are all general references and do not constitute a limiting effect on the technical solution of the present invention. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, 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 an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Example 1

[0043] Combined with Figure 1-15 A burner comprises a combustion chamber 11 and a preheating part 12, wherein the preheating part 12 is provided with a plurality of fuel channels and a fuel port 121 connected with the fuel channels; the fuel port 121 is connected with the combustion chamber 11; away from the fuel port 121, the space of the combustion chamber 11 tends to become larger.

[0044] After being preheated through multiple fuel channels in the preheating part 12 to a point close to the ignition point of the fuel, the fuel enters the combustion chamber 11 through the fuel port 121. The space of the combustion chamber 11 is designed to be consistent with the space required for the flame combustion of the corresponding fuel, that is, away from the fuel port 121, the space of the combustion chamber 11 tends to become larger, thereby ensuring that the fuel entering the combustion chamber 11 can be fully burned in the space of the combustion chamber 11 and fully release heat; so that the thermoelectric generator can absorb more heat, thereby promoting heat conversion rate and improving energy density.

[0045] An optional implementation manner is to further include a fuel supply portion 13, which is in communication with the fuel channel and is used to deliver fuel to the fuel channel to provide fuel for the burner, thereby ensuring that the burner burns and generates heat.

[0046] An optional implementation is that the first heat transfer member 122 is provided on both sides of the preheating part 12. An optional implementation is that the first heat transfer member 122 is evenly distributed on both sides of the preheating part 12, and is used to heat the fuel passing through the fuel channel. The first heat transfer member 122 plays a role of heat transfer and heat conduction, and introduces heat to the preheating part 12, thereby preheating the fuel passing through the fuel channel, so that the fuel can be fully burned after entering the combustion chamber 11. The first heat transfer member 122 can be a rib column, and the rib column can be circular, elliptical, square, triangular, polygonal, or other irregular shapes; the first heat transfer member 122 can also be a protrusion, such as a circular protrusion, a square protrusion, an irregular protrusion, etc. In actual application, the shape of the first heat transfer member 122 can be comprehensively considered based on cost, finished product difficulty, mold opening difficulty, heat conduction effect and cost performance.

[0047] Example 2

[0048] Combined with Figure 1-15 Compared with the technical solution of Example 1, a burner of this embodiment can be improved as follows: it includes a first side plate 103, a second plate 102 and a third plate 101, wherein the second plate 102 and the third plate 101 are respectively connected to both sides of the preheating part 12, and the first side plate 103 connects the second plate 102, the preheating part 12 and the third plate 101 to form the combustion chamber 11. The combustion chamber 11 is formed by combining two first side plates 103, one second plate 102 and one third plate 101, thereby ensuring full combustion of the fuel.

[0049] Example 3

[0050] Combined with Figure 1-15, a burner of this embodiment, compared with the technical solution of embodiment 1 or 2, can also be improved as follows: the number of the combustion chambers 11 is more than 3, the space size of the single combustion chamber 11, and the number of combustion chambers 11 can be determined based on the total heat that the burner can generate, and the power generation level of the corresponding temperature difference generator. An optional implementation is that the combustion chambers 11 have 3, 4 or 5 in total. When the combustion chambers 11 are 3, they include a first combustion chamber 111, a second combustion chamber 112 and a third combustion chamber 113 that are connected in sequence, and the space occupied by the first combustion chamber 111, the second combustion chamber 112 and the third combustion chamber 113 gradually increases; the shape space of the first combustion chamber 111, the second combustion chamber 112 and the third combustion chamber 113 can be square, arc, etc. respectively. In actual use, the design of the combustion chamber 11 can comprehensively consider parameters such as fuel type, fuel flow rate, pressure, etc., and combine the combustion flame characteristics of the corresponding fuel to set the space size of the combustion chamber 11 according to empirical values.

[0051] In an optional embodiment, the outer sides of the combustion chamber 11 and the preheating part 12 are both provided with a first fixing part 14 for fixing the burner. The first fixing part 14 is provided with a plurality of first fixing holes 141 for passing a connecting piece, thereby facilitating fixing the burner. The fuel supply part 13, the combustion chamber 11 and the preheating part 12 can be integrally formed, which is convenient for mold opening and can also minimize heat loss.

[0052] An optional implementation is that a second heat transfer member 1101 is provided in the combustion chamber 11. The fuel generated by the combustion of the fuel is transferred to the outside of the combustion chamber 11 through the second heat transfer member 1101, thereby conducting the heat out more directly, reducing heat loss and promoting heat conversion efficiency.

[0053] An optional implementation is that the second heat transfer member 1101 is evenly distributed in the combustion chamber 11. An optional way is that the second heat transfer member 1101 is evenly distributed on the inner side of the second plate 102 and the inner side of the third plate 101. The second heat transfer member 1101 plays a role in heat transfer and conduction, and introduces the heat generated by the full combustion of the fuel into the combustion chamber 11. Compared with relying solely on gas heat conduction, heat loss can be reduced. After the fuel is fully burned, the gas contained in the combustion chamber 11 is less and cannot play a full heat conduction role. The heat inside the combustion chamber 11 cannot be conducted out in time. The second heat transfer member 1101 set in the combustion chamber 11 can be used to conduct the heat in time, reduce heat loss, increase the heat conduction speed, and thus improve the conversion rate.

[0054] The second heat transfer member 1101 may be a rib column, which may be circular, elliptical, square, triangular, polygonal, or other irregular shapes; the second heat transfer member 1101 may also be a protrusion, such as a circular protrusion, a square protrusion, an irregular protrusion, etc. In practical applications, the shape of the second heat transfer member 1101 may be comprehensively considered based on cost, finished product difficulty, mold opening difficulty, heat conduction effect, and cost performance.

[0055] Example 4

[0056] Combined with Figure 1-15 A heat collection structure of this embodiment includes a heat collection plate 2 disposed outside of both sides of a burner as described in any one of the technical solutions of embodiments 1-3, and a third heat transfer member 201 is disposed on the side of the heat collection plate 2 close to the burner. The heat collection plate 2 is in full contact with the outside of both sides of the burner, so that the heat generated by the full combustion of the fuel can be collected, and then the heat can be quickly and timely converted into electrical energy without loss.

[0057] An optional implementation is that the heat collecting plate 2 is provided with a baffle 5 for fixing the burner and the heat collecting plate 2 at one end away from the preheating part 12, and the heat transfer channel 114 is provided between the baffle 5 and the combustion chamber 11. The baffle 5 is used to fix the burner and the heat collecting plate 2 on one hand, and is used to cooperate with the combustion chamber 11 to form the heat transfer channel 114. After the fuel is fully burned in the combustion chamber 11, on the one hand, the heat is transferred to the third heat transfer member 201 on the heat collecting plate 2 provided outside the combustion chamber 11 through the heat conduction and heat transfer effect of the combustion chamber 11 itself and the second heat transfer member 1101 on the inner wall of the combustion chamber 11. On the other hand, the flue gas with residual heat generated by the full combustion of the fuel in the combustion chamber 11 is transferred to the outside of the combustion chamber 11, that is, the space between the combustion chamber 11 and the heat collecting plate 2 through the heat transfer channel 114, so that the third heat transfer member 201 fully absorbs the heat and transfers it to the heat collecting plate 2. The baffle plate 5 is provided with a plurality of third fixing holes 51, and the heat collecting plate 2 and the baffle plate 5 are matched with a plurality of fourth fixing holes 202, and the third fixing holes 51 match with the fourth fixing holes 202, so as to fix the baffle plate 5 and the heat collecting plate 2 together by means of fixing parts such as screws, bolts or screws.

[0058] The heat collecting plate 2 is provided with a second fixing portion 21 at a position corresponding to the first fixing portion 14 of the burner, and the second fixing portion 21 is provided with a plurality of second fixing holes 211 matching the first fixing holes 141, so as to match the first fixing holes 141 and to facilitate fixing the burner and the heat collecting plate 2 together through similar connecting parts such as screws, bolts or screws, thereby achieving good heat transfer and heat conduction.

[0059] Example 5

[0060] Combined with Figure 1-15 A thermoelectric generator of this embodiment includes a thermoelectric power generation sheet 3 and a heat dissipation device which are sequentially arranged on the outside of a heat collection structure described in any technical solution of Example 4, and the thermoelectric power generation sheet 3 is electrically connected to the controller.

[0061] The thermoelectric power generation sheet 3 is used to absorb the heat conducted on the heat collecting plate 2, and after converting it into electrical energy, it is transmitted to the controller; the heat dissipation device is used to dissipate the heat of the thermoelectric power generation sheet 3; the optional implementation method of this embodiment is that the heat dissipation device is a liquid cooling module 4. The liquid cooling module 4 includes a coolant inlet 41 and a coolant outlet 42 to ensure that the liquid cooling module 4 can fully play a cooling effect; so that the thermoelectric power generation sheet 3 can fully convert heat into electricity. By controlling the electrical connection mode between the two thermoelectric power generation sheets 3 located on the heat collecting plate 2 and the controller, the two thermoelectric power generation sheets 3 can be connected in parallel or in series, so that the power level of the controller outputting electrical energy can be different.

[0062] On the one hand, the temperature difference power generation sheet 3 is in contact with the heat collecting plate 2 over a large area to ensure uniform temperature; in addition, the scale, compactness and homogeneity of the heat collecting structure make the heat collecting structure present a symmetrical arrangement, which can ensure the same potential energy of temperature difference power generation, reduce the number of voltage stabilizing modules in the controller and the settings of voltage stabilizing modules of different specifications, reduce the space occupied by the voltage stabilizing modules, facilitate the integration, modularization, scale and batch production of temperature difference generators, and further reduce the cost of temperature difference power generation; it is easy to install, has strong adaptability, and has flexible and changeable structural settings. It can be flexibly arranged and designed according to the volume or shape of different exhaust outlets.

[0063] An optional implementation of this embodiment is that the controller includes a plurality of voltage stabilizing modules arranged in parallel or in series, and the thermoelectric power generation sheet 3 is connected to the voltage stabilizing modules. The voltage stabilizing modules are used to stably output the electric energy converted by the thermoelectric power generation sheet 3 into electric energy of corresponding voltage level, so that they can be connected in parallel or in series, and then output stable electric energy for use by electrical equipment.

[0064] An optional implementation is that the controller further includes a protection circuit for protecting the voltage stabilizing module. By setting up a protection circuit, damage to the voltage stabilizing module caused by abnormal changes in the electric potential energy generated by the burner or the heat collection structure is prevented, so as to protect the voltage stabilizing module, thereby ensuring the safety of the structural equipment at the rear end of the thermoelectric power generation sheet 3 and playing a timely and effective protection role.

[0065] Example 6

[0066] Combined with Figure 1-15, a thermoelectric generator of this embodiment, in addition, this embodiment proposes a three-in-one collector (i.e., the heat collection structure), which has the following characteristics: (1) The collector is composed of three pieces of high thermal conductivity materials (copper, aluminum, silicon and graphite, etc.), in a sandwich structure, and has a side sealing plate, and the sealing plate (such as baffle 5, or the side of the burner) can be perforated to install an electric ignition device. (2) The intermediate body (i.e., the burner) can recover the flue gas waste heat to preheat the unburned fuel, and at the same time has a multi-stage (3-5 stages) self-stabilizing burner, which can adapt to different flow rates (combustion power). In addition, the fuel is preheated through multiple fuel channels and sprayed from the fuel port 121, so that the combustion is more uniform and the pollutant emission is lower. (3) The intermediate body is used for recovering the rib column of the waste heat, and the rib column can be circular, elliptical, square, triangular or polygonal, and is located at the tail of the flue gas. (4) Through the sealed side (i.e., the baffle 5), the flue gas flows in reverse into the heat collection structure of the thermoelectric generator, i.e., between the intermediate body and the heat collection plate 2. (5) The thermoelectric collector has a rib column structure, which can be circular, elliptical, square, triangular or polygonal, for enhancing heat collection. (6) Multiple thermoelectric sheets 3 are installed on the outside of the thermoelectric collector, and a liquid cooling module 4 is installed on the outside of the thermoelectric sheet 3. (7) The thermoelectric sheets 3 on the same side are connected in series to form a group, which is connected in series or in parallel with another group to a voltage stabilizer.

[0067] The fuel enters the multiple fuel channels of the preheating section 12 from the fuel supply section 13, and the first heat transfer element 122 on the preheating section 12 is used to preheat the fuel entering the fuel channel. The preheated fuel enters the combustion chamber 11 through the fuel port 121, and the space of the combustion chamber 11 is away from the fuel port 121, showing a trend of increasing; the fuel is fully burned in the combustion chamber 11. On the one hand, the generated heat is transferred to the heat collecting plate 2 outside the combustion chamber 11 through the second heat transfer element 1101, and on the other hand, the residual heat of the flue gas is transferred to the heat collecting plate 2 through the heat transfer channel 114 and the two sides of the combustion chamber 11. The heat collecting plate 2 is provided with a plurality of third heat transfer elements 201, which can also further improve the heat transfer and heat conduction effects, reduce heat loss, increase the heat transfer speed, and promote the efficiency of heat conversion into electrical energy. Combined with the attached Figure 1-15 As shown, the burner, the heat collecting structure, the thermoelectric power generation sheet and the cooling device are all arranged in a square shape, and the four are closely fitted together, so that the thermoelectric generator is integrated, occupies a small space and has a high energy density. For the thermoelectric generator described in this embodiment, when the fuel is methane, the specific energy is 300Wh / kg; under the same fuel condition, the specific energy of the existing thermoelectric generator is less than 150Wh / kg; in other words, under the same fuel condition, the thermoelectric generator proposed by the technical solution of this embodiment can increase the specific energy by more than 2 times.

[0068] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

Claims

1. A thermoelectric generator, characterized in that: It comprises a thermoelectric power generation sheet and a heat dissipation device which are sequentially arranged outside a heat collection structure, wherein the thermoelectric power generation sheet is electrically connected to a controller; The heat collection structure comprises a heat collection plate arranged outside of both sides of a burner, and a third heat transfer member is arranged on a side of the heat collection plate close to the burner; The burner comprises a combustion chamber and a preheating section, wherein: The preheating part is provided with a plurality of fuel channels and fuel ports communicating with the fuel channels; The fuel port is in communication with the combustion chamber; As the space of the combustion chamber moves away from the fuel port, it tends to become larger. The burner further includes a first side plate, a second plate and a third plate, wherein the second plate and the third plate are respectively connected to two sides of the preheating portion, and the first side plate connects the second plate, the preheating portion and the third plate to form the combustion chamber; A second heat transfer member is arranged in the combustion chamber, and the second heat transfer member is evenly distributed on the inner sides of the second plate and the third plate.

2. A thermoelectric generator according to claim 1, characterized in that: Also included is a fuel supply portion, which is in communication with the fuel passage.

3. A thermoelectric generator according to claim 1, characterized in that: First heat transfer elements are provided on both sides of the preheating portion.

4. A thermoelectric generator according to claim 1, characterized in that: The number of the combustion chambers is more than 3.

5. The thermoelectric generator according to claim 1, characterized in that: The outer sides of the combustion chamber and the preheating part are both provided with a first fixing part for fixing the burner.

6. The thermoelectric generator according to claim 1, characterized in that: The heat collecting plate is provided with a baffle plate for fixedly connecting the burner and the heat collecting plate at one end away from the preheating part, and a heat transfer channel is provided between the baffle plate and the combustion chamber.

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