Thermoelectric battery assembly

Abstract

This application provides a thermoelectric battery assembly, relating to the field of battery manufacturing technology, and solves the technical problem that simply connecting multiple thermoelectric batteries via conductors results in poor thermal insulation of the thermoelectric battery. The thermoelectric battery assembly includes: a cold end cover; a hot end cover, disposed opposite to the cold end cover in a first direction; a thermoelectric battery pack disposed between the cold end cover and the hot end cover, and having a hot end and a cold end, the thermoelectric battery pack including at least one thermoelectric battery, wherein, when there are at least two thermoelectric batteries, each thermoelectric battery is electrically connected to the others; and at least one first heat insulation member disposed on the side of the thermoelectric battery, configured to prevent heat between the cold end cover and the hot end cover from flowing from the hot end to the cold end through the side of the thermoelectric battery. By providing the first heat insulation member, the thermoelectric battery can be kept warm, improving its thermal insulation performance, reducing heat loss, and thus improving power generation efficiency.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, specifically to a thermoelectric battery assembly. Background Technology

[0002] A thermoelectric cell, also known as a Seebeck cell, is an energy conversion device based on the Seebeck effect, widely used in communications, medical, aerospace, and new energy fields. The principle of a thermoelectric cell is as follows: two different types of thermoelectric conversion materials—N-type and P-type semiconductors—are combined at one end and kept at a high temperature, while the other end is left open and kept at a low temperature. Due to the stronger thermal excitation at the high-temperature end, the concentration of holes and electrons is higher than at the low-temperature end. Driven by this carrier concentration gradient, holes and electrons diffuse towards the low-temperature end, thus creating a potential difference at the open-circuit end.

[0003] Because the power and current of a single thermoelectric cell are relatively low, it is difficult to meet normal usage requirements. Therefore, in related technologies, multiple cells are usually connected by conductors to increase power and current. However, simply connecting thermoelectric cells by conductors without effective heat insulation measures results in poor heat insulation of the thermoelectric cells, leading to low power generation efficiency and short lifespan. Utility Model Content

[0004] To address the aforementioned technical problems, this application is proposed. An embodiment of this application provides a thermoelectric battery assembly.

[0005] In a first aspect, one embodiment of this application provides a thermoelectric battery assembly, comprising: a cold end cover plate; a hot end cover plate disposed opposite to the cold end cover plate in a first direction; a thermoelectric battery pack disposed between the cold end cover plate and the hot end cover plate, and having a hot end and a cold end, the thermoelectric battery pack including at least one thermoelectric battery, each thermoelectric battery having two surfaces disposed opposite to each other in the first direction and at least one side connecting the two surfaces, wherein, when there are at least two thermoelectric batteries, each thermoelectric battery is electrically connected to the other; and at least one first heat insulation member disposed on the side of the thermoelectric battery, the first heat insulation member being configured to block heat between the cold end cover plate and the hot end cover plate from flowing from the hot end to the cold end through the side of the thermoelectric battery.

[0006] In some embodiments, the thermoelectric battery includes multiple sides, and there are multiple first heat insulation elements. Each side is provided with a first heat insulation element, and the multiple first heat insulation elements surround the thermoelectric battery.

[0007] In some embodiments, the cold end cover has at least one first through hole, and the hot end cover has at least one second through hole; wherein, the thermoelectric battery assembly further includes: at least one support nut, the support nut including a first limiting portion and a supporting portion connected to each other, the first limiting portion abutting against the side of the cold end cover away from the hot end cover, the supporting portion passing through the first through hole and extending between the cold end cover and the hot end cover to support the hot end cover; at least one screw connector, the screw connector including a second limiting portion and a screw portion connected to each other, the second limiting portion abutting against the side of the hot end cover away from the cold end cover, the screw portion passing through the second through hole and screwed to the support nut.

[0008] In some embodiments, the thermoelectric battery assembly further includes: a gasket sleeved on the support portion and located between the first limiting portion and the cold end cover plate, the gasket being flexible, the first limiting portion abutting against the side of the cold end cover plate away from the hot end cover plate via the gasket; and / or, the material of the support nut being ceramic.

[0009] In some embodiments, the cold end cover plate has a water cooling tank on the side near the hot end cover plate, and the cold end cover plate also has an inlet and an outlet connecting the water cooling tank to the outside; wherein, the thermoelectric battery assembly further includes: a water cooling pipe disposed in the water cooling tank and in contact with the cold end of the thermoelectric battery assembly, the two ends of the water cooling pipe passing through the cold end cover plate from the inlet and the outlet respectively, and being able to communicate with a cooling device respectively, the cooling device being configured to provide coolant to the water cooling pipe to cool the cold end of the thermoelectric battery assembly and the cold end cover plate.

[0010] In some embodiments, the cold end cover plate has at least one first groove extending in a first direction on the side near the hot end cover plate, and the hot end cover plate has at least one second groove extending in a first direction on the side near the cold end cover plate. A portion of the thermoelectric battery is located in the first groove, and another portion of the thermoelectric battery is located in the second groove. A thermally conductive silicone grease layer is provided at the bottom of the first groove.

[0011] In some embodiments, the thermoelectric battery assembly further includes: a frame assembly, which is disposed circumferentially around the cold end cover and the hot end cover in a first direction, wherein the frame assembly, the cold end cover, and the hot end cover together form an accommodating space so that the thermoelectric battery is located within the accommodating space; and a second heat insulation member, which is disposed on the side of the frame assembly near the cold end cover and the hot end cover.

[0012] In some embodiments, the frame assembly includes: a plurality of frame strips and corner brackets, the plurality of frame strips being arranged circumferentially around the cold end cover and the hot end cover in a first direction, the adjacent ends of each pair of adjacent frame strips being connected by corner brackets, wherein the frame strips include a first connecting portion, a second connecting portion and a third connecting portion, the first connecting portion being connected to the second connecting portion and the third connecting portion respectively to form a semi-enclosed structure; the second insulation member includes: a first sub-connector, a second sub-connector and a third sub-connector, the first sub-connector being connected to the second sub-connector and the third sub-connector respectively to form an enclosed structure corresponding to the frame assembly.

[0013] In some embodiments, the thermoelectric battery assembly further includes: a conductor assembly disposed between the cold end cover and the hot end cover, wherein, when there are at least two thermoelectric batteries, the conductor assembly is configured to electrically connect each thermoelectric battery; a positive electrode lead, one end of which is located between the cold end cover and the hot end cover and electrically connected to the thermoelectric battery, and the other end of which extends out between the cold end cover and the hot end cover; and a negative electrode lead, one end of which is located between the cold end cover and the hot end cover and electrically connected to the thermoelectric battery, and the other end of which extends out between the cold end cover and the hot end cover.

[0014] In some embodiments, the number of thermoelectric cells is at least two, and the at least two thermoelectric cells are arranged in M ​​rows and N columns, where M is an integer greater than 1 and N is a positive integer. The conductor assembly includes a first conductor, a second conductor, and a third conductor. In each row of thermoelectric cells, the positive terminal of one thermoelectric cell is electrically connected to the negative terminal of the other thermoelectric cell through the first conductor. The positive terminals of the first thermoelectric cells in each of the two adjacent rows are electrically connected through the second conductor. The negative terminals of the last thermoelectric cells in each of the two adjacent rows are electrically connected through the third conductor. The positive terminal lead is electrically connected to the second conductor or the first thermoelectric cell in one of the M rows of thermoelectric cells. The negative terminal lead is electrically connected to the third conductor or the last thermoelectric cell in one of the M rows of thermoelectric cells.

[0015] The thermoelectric battery assembly proposed in this application can insulate and keep the thermoelectric battery warm by setting a first heat insulation component, thereby reducing the heat loss of the thermoelectric battery and maintaining a large temperature difference between the cold end and the hot end of the thermoelectric battery pack, thus improving the power generation efficiency. Attached Figure Description

[0016] The above and other objects, features, and advantages of this application will become more apparent from the more detailed description of the embodiments of this application in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0017] Figure 1 The image shown is an exploded view of a thermoelectric battery assembly provided in an exemplary embodiment of this application.

[0018] Figure 2 The image shown is a top view of a thermoelectric battery assembly provided in an exemplary embodiment of this application.

[0019] Figure 3 The image shown is a partial cross-sectional view of a thermoelectric battery assembly provided in an exemplary embodiment of this application.

[0020] Figure 4 The diagram shown is a structural schematic of a support nut and washer provided in an exemplary embodiment of this application.

[0021] Figure 5 The image shown is an exemplary embodiment of this application. Figure 2 The thermoelectric battery assembly shown is a cross-sectional view along the AA direction.

[0022] Figure 6 The diagram shown is a structural schematic of the cold end cover and the thermoelectric cell provided in an exemplary embodiment of this application.

[0023] Figure 7 The diagram shown is a circuit schematic of at least two thermoelectric batteries electrically connected according to an exemplary embodiment of this application.

[0024] Figure label:

[0025] 100. Thermoelectric battery assembly; 101. Cold end cover plate; 1011. First groove; 1012. First through hole; 10121. First hole segment; 10122. Second hole segment; 1013. Second through hole; 10131. Third hole segment; 10132. Fourth hole segment; 1014. Water cooling tank; 1015. Positive electrode lead-out groove; 1016. Negative electrode lead-out groove; 102. First heat insulation component; 103. Thermoelectric battery; 1031. Cold end; 1032. Hot end; 1033. Side; 104. Hot end cover plate; 1041. Second groove; 105. Support nut; 1051. First limiting part; 1052. Support part; 106. Threaded connector; 1061, Second limiting part; 1062, Screw connection part; 107, Gasket; 108, Water cooling pipe; 1081, First sub-pipe; 1082, Second sub-pipe; 109, Frame assembly; 1091, Frame strip; 10911, First connecting part; 10912, Second connecting part; 10913, Third connecting part; 1092, Angle bracket; 110, Second insulation component; 1101, First sub-connector; 1102, Second sub-connector; 1103, Third sub-connector; 111, Conductor assembly; 1111, First conductor; 1112, Second conductor; 1113, Third conductor; 112, Positive lead wire; 113, Negative lead wire. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] Figure 1 The image shown is an exploded view of a thermoelectric battery assembly provided in an exemplary embodiment of this application. Figure 2 The image shown is a top view of a thermoelectric battery assembly provided in an exemplary embodiment of this application. Figure 3 The image shown is a partial cross-sectional view of a thermoelectric battery assembly provided in an exemplary embodiment of this application.

[0028] like Figures 1-3As shown in the figure, this application provides a thermoelectric battery assembly 100, which includes: a cold end cover plate 101, a hot end cover plate 104, a thermoelectric battery pack, and at least one first heat insulation member 102. The hot end cover plate 104 and the cold end cover plate 101 are disposed opposite each other in a first direction (X direction in the figure). The thermoelectric battery pack is disposed between the cold end cover plate 101 and the hot end cover plate 104, and has a hot end 1032 and a cold end 1031. The thermoelectric battery pack includes at least one thermoelectric battery 103. Each thermoelectric battery 103 has two surfaces disposed opposite each other in the first direction and at least one side 1033 connecting the two surfaces. When there are at least two thermoelectric batteries 103, each thermoelectric battery 103 is electrically connected to the others. The first heat insulation element 102 is disposed on the side 1033 of the thermoelectric battery 103. The first heat insulation element 102 is configured to block the heat between the cold end cover plate 101 and the hot end cover plate 104 from flowing from the hot end 1032 to the cold end 1031 through the side 1033 of the thermoelectric battery 103.

[0029] For example, the hot end 1032 of the thermoelectric battery pack is located in the first direction on the side of the cold end 1031 near the hot end cover 104.

[0030] For example, the first insulation element 102 includes insulation paper.

[0031] For example, the cold end 1031 can be cooled by a coolant or a cooling gas.

[0032] For example, the hot end 1032 can be heated by external heating methods (such as boiler heating or sunlight heating), or the hot end 1032 does not need to be heated, but only by cooling the cold end 1031 to create a temperature difference between the cold end 1031 and the hot end 1032.

[0033] In the above embodiments, the thermoelectric battery assembly 100 has the following advantages. First, by providing the first heat insulation element 102, the thermoelectric battery 103 can be insulated and kept warm, reducing heat loss from the thermoelectric battery 103 and maintaining a large temperature difference between the cold end 1031 and the hot end 1032 of the thermoelectric battery assembly, thereby improving power generation efficiency. Second, by placing the thermoelectric battery 103 between the cold end cover plate 101 and the hot end cover plate 104, the cold end cover plate 101 and the hot end cover plate 104 can shield and protect the thermoelectric battery 103, improving its safety. Third, with the integrated design of the thermoelectric battery assembly 100, it is only necessary to electrically connect the thermoelectric battery assembly 100 to the power-consuming device during use, eliminating the need for manual connection of the thermoelectric battery 103, thus improving convenience. Fourth, the integrated design of the thermoelectric battery assembly 100 improves its aesthetics.

[0034] In some embodiments, the thermoelectric battery 103 includes multiple sides 1033, and multiple first heat-insulating members 102, each side 1033 being provided with a first heat-insulating member 102, the multiple first heat-insulating members 102 surrounding and enclosing the thermoelectric battery 103. The multiple first heat-insulating members 102 may be integrally formed, meaning that each heat-insulating member 102 can be part of a heat-insulating structure; alternatively, the multiple first heat-insulating members 102 may exist independently, each individual first heat-insulating member 102 being disposed on a corresponding side 1033.

[0035] For example, the thermoelectric battery 103 is in the shape of a cuboid, that is, the thermoelectric battery 103 has four sides 1033, and there are four first heat insulation members 102, each of which is disposed on one side 1033.

[0036] In the above embodiments, by having multiple first heat insulation components 102 surround the thermoelectric battery 103, the thermoelectric battery 103 can be adequately insulated and kept warm, thereby effectively reducing the heat between the cold end cover plate 101 and the hot end cover plate 104 flowing from the hot end 1032 to the cold end 1031 through the side 1033 of the thermoelectric battery 103.

[0037] Figure 4 The diagram shown is a structural schematic of the support nut and washer provided in an exemplary embodiment of this application. Figure 5 The image shown is an exemplary embodiment of this application. Figure 2 The thermoelectric battery assembly shown is a cross-sectional view along the AA direction.

[0038] In some embodiments, such as Figure 4 and Figure 5 As shown, the cold end cover 101 has at least one first through hole 1012, and the hot end cover 104 has at least one second through hole 1013. The thermoelectric battery assembly 100 further includes at least one support nut 105 and at least one threaded connector 106. The support nut 105 includes a first limiting portion 1051 and a supporting portion 1052 connected to each other. The first limiting portion 1051 abuts against the side of the cold end cover 101 away from the hot end cover 104. The supporting portion 1052 passes through the first through hole 1012 and extends between the cold end cover 101 and the hot end cover 104 to support the hot end cover 104. The threaded connector 106 includes a second limiting portion 1061 and a threaded portion 1062 connected to each other. The second limiting portion 1061 abuts against the side of the hot end cover 104 away from the cold end cover 101. The threaded portion 1062 passes through the second through hole 1013 and is threaded onto the support nut 105.

[0039] For example, the diameter of the cross section of the first limiting part 1051 perpendicular to the first direction is greater than the diameter of the cross section of the support part 1052 perpendicular to the first direction.

[0040] For example, the first through hole 1012 includes a first hole segment 10121 and a second hole segment 10122 connected to each other. The second hole segment 10122 is located on the side of the first hole segment 10121 near the hot end cover plate 104. The diameter of the second hole segment 10122 is smaller than the diameter of the first hole segment 10121. The first limiting part 1051 is located in the first hole segment 10121, and the supporting part 1052 is partially located in the second hole segment 10122. The first limiting part 1051 abuts against the inner wall of the first hole segment 10121 near the second hole segment 10122.

[0041] For example, the screw connector 106 includes a screw or bolt.

[0042] For example, the diameter of the cross section of the second limiting portion 1061 perpendicular to the first direction is greater than the diameter of the cross section of the screw portion 1062 perpendicular to the first direction.

[0043] For example, the second through hole 1013 includes a third hole segment 10131 and a fourth hole segment 10132 connected to each other. The fourth hole segment 10132 is located on the side of the third hole segment 10131 near the cold end cover plate 101. The diameter of the fourth hole segment 10132 is smaller than the diameter of the third hole segment 10131. The diameter of the third hole segment 10131 gradually decreases from away from the fourth hole segment 10132 to near the fourth hole segment 10132. The diameter of the cross section of the second limiting part 1061 perpendicular to the first direction gradually decreases from away from the fourth hole segment 10132 to near the fourth hole segment 10132. The second limiting part 1061 abuts against the inner wall of the third hole segment 10131.

[0044] In the above embodiments, the cold end cover plate 101 and the hot end cover plate 104 can be locked by setting the support nut 105 and the screw connector 106. The support nut 105 can also support the hot end cover plate 104 so that a gap is maintained between the cold end cover plate 101 and the hot end cover plate 104 to reduce the heat exchange between the cold end cover plate 101 and the hot end cover plate 104.

[0045] In some embodiments, such as Figure 4 As shown, the thermoelectric battery assembly 100 also includes a gasket 107. The gasket 107 is sleeved on the support portion 1052 and located between the first limiting portion 1051 and the cold end cover plate 101. The gasket 107 is flexible, and the first limiting portion 1051 abuts against the side of the cold end cover plate 101 away from the hot end cover plate 104 through the gasket 107.

[0046] For example, gasket 107 includes insulating paper.

[0047] When the thermoelectric battery assembly 100 is operating, the support nut 105 will expand due to heat at high temperatures. If the support nut 105 is directly locked to the cold end cover plate 101, the interaction force between the expanded support nut 105 and the cold end cover plate 101 will cause damage to the support nut 105. In the above embodiment, by providing a flexible gasket 107, if the support nut 105 expands due to heat, the gasket 107 can be compressed and deformed, thereby reducing the force on the support nut 105 and reducing the risk of damage to the support nut 105.

[0048] In some embodiments, the material of the support nut 105 is ceramic.

[0049] Since the heat from the hot end cover plate 104 is transferred to the support nut 105 through the screw connector 106, and since ceramic has good heat insulation properties, by selecting the support nut 105 made of ceramic material, the heat is less likely to be transferred to the cold end cover plate 101 through the support nut 105, thereby affecting the temperature of the cold end 1031 of the thermoelectric battery pack, thus improving the power generation efficiency.

[0050] Figure 6 The diagram shown is a structural schematic of the cold end cover and the thermoelectric cell provided in an exemplary embodiment of this application.

[0051] In some embodiments, such as Figure 1 , Figure 3 and Figure 6 As shown, the cold end cover plate 101 has a water-cooling tank 1014 on the side near the hot end cover plate 104. The cold end cover plate 101 also has an inlet and an outlet connecting the water-cooling tank 1014 to the outside. The thermoelectric battery assembly 100 also includes a water-cooling pipe 108. The water-cooling pipe 108 is disposed in the water-cooling tank 1014 and contacts the cold end 1031 of the thermoelectric battery assembly. Both ends of the water-cooling pipe 108 extend out of the cold end cover plate 101 through the inlet and outlet, respectively, and can be connected to a cooling device. The cooling device is configured to provide coolant to the water-cooling pipe 108 to cool the cold end 1031 and the cold end cover plate 101 of the thermoelectric battery assembly.

[0052] For example, both the inlet and outlet are located on the side of the cold end cover 101 away from the hot end cover 104.

[0053] For example, the water-cooled pipe 108 includes a plurality of first sub-pipes 1081 and a plurality of second sub-pipes 1082. The first sub-pipes 1081 extend along a second direction (such as the Y direction in the figure), and the plurality of first sub-pipes 1081 are arranged sequentially along a third direction (such as the Z direction in the figure). The second direction intersects (e.g., perpendicular to) the first direction, and the third direction intersects (e.g., perpendicular to) both the second direction and the first direction. The second sub-pipes 1082 connect to adjacent first sub-pipes 1081.

[0054] For example, the water-cooled tank 1014 is partially located at the bottom of the first groove 1011.

[0055] In the above embodiments, by integrating the water-cooled pipe 108 into the thermoelectric battery module 100, the cold end 1031 and the cold end cover plate 101 of the thermoelectric battery module can be sufficiently cooled, thereby improving the power generation efficiency of the thermoelectric battery module 100.

[0056] In some embodiments, such as Figure 3 As shown, the cold end cover plate 101 has at least one first groove 1011 extending in a first direction on the side near the hot end cover plate 104, and the hot end cover plate 104 has at least one second groove 1041 extending in a first direction on the side near the cold end cover plate 101. A portion of the thermoelectric battery 103 is located in the first groove 1011, and another portion of the thermoelectric battery 103 is located in the second groove 1041.

[0057] For example, the first shape of the cross section of the first groove 1011 perpendicular to the first direction is the same as the second shape of the cross section of the thermoelectric cell 103 perpendicular to the first direction. The first shape and the second shape are such as ellipse, circle, polygon (such as rectangle, square), etc.

[0058] For example, the third shape of the cross section of the second groove 1041 perpendicular to the first direction is the same as the second shape of the cross section of the thermoelectric cell 103 perpendicular to the first direction. The third shape and the second shape are such as ellipse, circle, polygon (such as rectangle, square), etc.

[0059] In the above embodiments, by providing the first groove 1011 and the second groove 1041, the thermoelectric battery 103 can be fixed and prevented from moving.

[0060] In some embodiments, a thermally conductive silicone grease layer is provided at the bottom of the first groove 1011.

[0061] The thermal grease layer is composed of thermal grease material, which has good thermal conductivity, thereby improving the heat exchange efficiency between the cold end 1031 and the cold end cover plate 101.

[0062] In the above embodiments, by setting a thermally conductive silicone grease layer, the heat exchange efficiency between the cold end 1031 of the thermoelectric battery pack and the cold end cover plate 101 can be improved, thereby enabling the cold end 1031 of the thermoelectric battery pack to maintain a lower temperature and improve power generation efficiency.

[0063] In some embodiments, such as Figures 1-3 as well as Figure 5As shown, the thermoelectric battery assembly 100 also includes a frame assembly 109. The frame assembly 109 is arranged circumferentially around the cold end cover plate 101 and the hot end cover plate 104 along a first direction. The frame assembly 109, the cold end cover plate 101 and the hot end cover plate 104 together form an accommodating space so that the thermoelectric battery 103 is located within the accommodating space.

[0064] In the above embodiments, by setting the frame assembly 109, the cold end cover plate 101, the hot end cover plate 104 and the frame assembly 109 can be enclosed to form an accommodating space. By placing the thermoelectric battery 103 in the accommodating space, the thermoelectric battery 103 can be prevented from being exposed to the outside world, thereby improving the safety of the thermoelectric battery 103.

[0065] In some embodiments, such as Figure 1 , Figure 3 and Figure 5 As shown, the thermoelectric battery assembly 100 also includes a second heat insulation element 110. The second heat insulation element 110 is disposed on the side of the frame assembly 109 near the cold end cover plate 101 and the hot end cover plate 104.

[0066] For example, the second insulation element 110 includes insulation paper.

[0067] In the above embodiments, by providing the second heat insulation component 110, heat exchange between the cold end cover plate 101 and the frame assembly 109, as well as heat exchange between the hot end cover plate 104 and the frame assembly 109, can be isolated. Therefore, the second heat insulation component 110 can prevent heat exchange between the hot end cover plate 104 and the cold end cover plate 101 through the frame assembly 109, thereby avoiding affecting the temperature of the cold end 1031 and the hot end 1032 of the thermoelectric battery pack and improving the power generation efficiency of the thermoelectric battery 103.

[0068] In some embodiments, such as Figures 1-3 As shown, the frame assembly 109 includes a plurality of frame strips 1091 and corner brackets 1092. The plurality of frame strips 1091 are arranged to surround the cold end cover plate 101 and the hot end cover plate 104 in a circumferential manner along a first direction. The adjacent ends of every two adjacent frame strips 1091 are connected by corner brackets 1092. Each frame strip 1091 includes a first connecting portion 10911, a second connecting portion 10912, and a third connecting portion 10913. The first connecting portion 10911 is connected to the second connecting portion 10912 and the third connecting portion 10913 respectively to form a semi-enclosed structure. The second heat insulation member 110 includes a first sub-connector 1101, a second sub-connector 1102, and a third sub-connector 1103. The first sub-connector 1101 is connected to the second sub-connector 1102 and the third sub-connector 1103 respectively to form an enclosed structure corresponding to the frame assembly 109.

[0069] For example, for each pair of adjacent frame bars 1091, one end of the corner bracket 1092 is connected to the adjacent end of one frame bar 1091 by a screw or bolt, and the other end of the corner bracket 1092 is connected to the adjacent end of the other frame bar 1091 by a screw or bolt.

[0070] For example, the first connecting portion 10911 is located on the side of the cold end cover plate 101 and the hot end cover plate 104 that is away from the thermoelectric cell 103 in a direction perpendicular to the first direction, the second connecting portion 10912 is located on the side of the cold end cover plate 101 that is away from the hot end cover plate 104 in the first direction, and the third connecting portion 10913 is located on the side of the hot end cover plate 104 that is away from the cold end cover plate 101 in the first direction.

[0071] For example, the first sub-connector 1101 is disposed between the first connecting portion 10911 and the cold end cover plate 101 and the hot end cover plate 104, the second sub-connector 1102 is disposed between the second connecting portion 10912 and the cold end cover plate 101, and the third sub-connector 1103 is disposed between the third connecting portion 10913 and the hot end cover plate 104.

[0072] With this structure, the frame strip 1091 and the second insulation element 110 can be fastened to the outside of the cold end cover plate 101 and the hot end cover plate 104, which improves the structural stability. Furthermore, since the second insulation element 110 forms an enclosing structure corresponding to the frame assembly 109 and is disposed between the frame assembly 109 and the cold end cover plate 101 and the hot end cover plate 104, the frame assembly 109 can be prevented from directly contacting the cold end cover plate 101 and the hot end cover plate 104, thereby effectively preventing heat exchange between the hot end cover plate 104 and the cold end cover plate 101 through the frame assembly 109.

[0073] Figure 7 The diagram shown is a circuit schematic of at least two thermoelectric batteries electrically connected according to an exemplary embodiment of this application.

[0074] In some embodiments, such as Figure 7As shown, the thermoelectric battery assembly 100 further includes a conductor assembly 111, a positive electrode lead 112, and a negative electrode lead 113. The conductor assembly 111 is disposed between the cold end cover plate 101 and the hot end cover plate 104. When there are at least two thermoelectric batteries 103, the conductor assembly 111 is configured to electrically connect each thermoelectric battery 103. One end of the positive electrode lead 112 is located between the cold end cover plate 101 and the hot end cover plate 104 and is electrically connected to the thermoelectric battery 103. The other end of the positive electrode lead 112 extends out between the cold end cover plate 101 and the hot end cover plate 104. One end of the negative electrode lead 113 is located between the cold end cover plate 101 and the hot end cover plate 104 and is electrically connected to the thermoelectric battery 103. The other end of the negative electrode lead 113 extends out between the cold end cover plate 101 and the hot end cover plate 104. The electrical device can be electrically connected to the positive lead 112 and the negative lead 113, thereby enabling the thermoelectric battery assembly 100 to supply power to the electrical device.

[0075] For example, conductor assembly 111 may include a plurality of wires.

[0076] For example, the edge region of the cold end cover plate 101 has a positive electrode lead-out groove 1015 and a negative electrode lead-out groove 1016, the second heat insulation member 110 has a first opening and a second opening, the frame assembly 109 has a third opening and a fourth opening, the positive electrode lead-out groove 1015, the first opening and the third opening are connected, the negative electrode lead-out groove 1016, the second opening and the fourth opening are connected, the positive electrode lead wire 112 passes through the positive electrode lead-out groove 1015, the first opening and the third opening and extends to the outside of the receiving space, and the negative electrode lead wire 113 passes through the negative electrode lead-out groove 1016, the second opening and the fourth opening and extends to the outside of the receiving space.

[0077] In the above embodiments, by electrically connecting the conductor assembly 111 to at least two thermoelectric cells 103, the power and current are improved compared to the independent operation of a single thermoelectric cell 103. By providing a positive lead 112 and a negative lead 113, it is convenient to electrically connect the thermoelectric cell assembly 100 to the electrical device to supply power to the electrical device.

[0078] In some embodiments, such as Figure 7As shown, there are at least two thermoelectric cells 103, and the at least two thermoelectric cells 103 are arranged in M ​​rows and N columns, where M is an integer greater than 1 and N is a positive integer. The conductor assembly 111 includes: a first conductor 1111, a second conductor 1112 and a third conductor 1113. In each row of thermoelectric cells 103, the positive terminal of one thermoelectric cell 103 is electrically connected to the negative terminal of the other thermoelectric cell 103 via a first conductor 1111; the positive terminal of the first thermoelectric cell 103 in each row of thermoelectric cells 103 is electrically connected via a second conductor 1112; and the negative terminal of the last thermoelectric cell 103 in each row of thermoelectric cells 103 is electrically connected via a third conductor 1113. Furthermore, the positive terminal lead 112 is electrically connected to the second conductor 1112 or the first thermoelectric cell 103 in one of the M rows of thermoelectric cells 103; and the negative terminal lead 113 is electrically connected to the third conductor 1113 or the last thermoelectric cell 103 in one of the M rows of thermoelectric cells 103.

[0079] For example, the number of thermoelectric cells 103 may be 50, 60, or 70.

[0080] If at least two thermoelectric cells 103 form a series circuit, the circuit has a small capacity and consumes power quickly. If at least two thermoelectric cells 103 are connected in parallel, the circuit has a low voltage and cannot meet the requirements of high-voltage equipment. By using the hybrid connection method in the above embodiment, even if at least one thermoelectric cell 103 in each row is connected in series, and at least two rows of thermoelectric cells 103 are connected in parallel, the circuit can be guaranteed to have a high voltage and a large capacity.

[0081] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0082] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0083] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0084] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0085] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A thermoelectric battery assembly, characterized in that, include: Cold end cover plate; A hot end cover plate is disposed opposite to the cold end cover plate in a first direction; A thermoelectric battery pack is disposed between the cold end cover plate and the hot end cover plate, and has a hot end and a cold end. The thermoelectric battery pack includes at least one thermoelectric battery. Each thermoelectric battery has two surfaces disposed opposite to each other in the first direction and at least one side connecting the two surfaces. When there are at least two thermoelectric batteries, each thermoelectric battery is electrically connected to the other. At least one first heat insulation element is disposed on the side of the thermoelectric cell and is configured to block heat between the cold end cover and the hot end cover from flowing from the hot end to the cold end through the side of the thermoelectric cell.

2. A thermoelectric battery assembly according to claim 1, wherein, The thermoelectric battery includes multiple sides, and there are multiple first heat insulation components. Each side is provided with a first heat insulation component, and the multiple first heat insulation components surround and enclose the thermoelectric battery.

3. A thermoelectric battery assembly according to claim 1 or 2, wherein, The cold end cover plate has at least one first through hole, and the hot end cover plate has at least one second through hole; The thermoelectric battery assembly further includes: At least one support nut, the support nut including a first limiting part and a support part connected to each other, the first limiting part abutting against the side of the cold end cover plate away from the hot end cover plate, the support part passing through the first through hole and extending between the cold end cover plate and the hot end cover plate to support the hot end cover plate; At least one threaded connector, the threaded connector including a second limiting portion and a threaded portion connected to each other, the second limiting portion abutting against the side of the hot end cover plate away from the cold end cover plate, the threaded portion passing through the second through hole and threaded to the support nut.

4. A thermoelectric battery assembly according to claim 3, wherein, The thermoelectric battery assembly also includes: A gasket is fitted onto the support portion and located between the first limiting portion and the cold end cover plate. The gasket is flexible, and the first limiting portion abuts against the side of the cold end cover plate away from the hot end cover plate through the gasket. And / or, the material of the support nut is ceramic.

5. A thermoelectric battery assembly according to claim 1 or 2, wherein, The cold end cover plate also has a water cooling tank on the side near the hot end cover plate, and the cold end cover plate also has an inlet and an outlet connecting the water cooling tank to the outside. The thermoelectric battery assembly further includes: A water-cooled pipe is disposed in the water-cooled tank and contacts the cold end of the thermoelectric battery pack. The two ends of the water-cooled pipe extend out of the cold end cover plate through the inlet and the outlet, respectively, and can be connected to a cooling device. The cooling device is configured to provide coolant to the water-cooled pipe to cool the cold end of the thermoelectric battery pack and the cold end cover plate.

6. A thermoelectric battery assembly according to claim 1 or 2, wherein, The cold end cover plate has at least one first groove extending along the first direction on the side near the hot end cover plate, and the hot end cover plate has at least one second groove extending along the first direction on the side near the cold end cover plate. A portion of the thermoelectric battery is located in the first groove, and another portion of the thermoelectric battery is located in the second groove. The bottom of the first groove is provided with a thermally conductive silicone grease layer.

7. A thermoelectric battery assembly according to claim 1 or 2, wherein, Also includes: A frame assembly is arranged circumferentially around the cold end cover and the hot end cover along the first direction. The frame assembly, the cold end cover, and the hot end cover together form an accommodating space so that the thermoelectric battery is located within the accommodating space. The second insulation element is disposed on the side of the frame assembly near the cold end cover and the hot end cover.

8. A thermoelectric battery assembly according to claim 7, wherein, The border component includes: Multiple frame strips and corner brackets are arranged around the cold end cover plate and the hot end cover plate in a circumferential direction along a first direction. The adjacent ends of each pair of adjacent frame strips are connected by the corner brackets. Each frame strip includes a first connecting part, a second connecting part and a third connecting part. The first connecting part is connected to the second connecting part and the third connecting part respectively to form a semi-enclosed structure. The second heat insulation component includes: A first sub-connector, a second sub-connector, and a third sub-connector, wherein the first sub-connector is connected to the second sub-connector and the third sub-connector respectively to form an enclosing structure corresponding to the border assembly.

9. A thermoelectric battery assembly according to claim 1 or 2, wherein, Also includes: A conductor assembly is disposed between the cold end cover and the hot end cover, wherein, when there are at least two thermoelectric cells, the conductor assembly is configured to electrically connect each of the thermoelectric cells. A positive electrode lead-out wire, one end of which is located between the cold end cover plate and the hot end cover plate and is electrically connected to the thermoelectric battery, and the other end of which extends out between the cold end cover plate and the hot end cover plate. The negative electrode lead has one end located between the cold end cover and the hot end cover and is electrically connected to the thermoelectric battery, while the other end extends out between the cold end cover and the hot end cover.

10. A thermoelectric battery assembly according to claim 9, wherein, The number of thermoelectric cells is at least two, and the at least two thermoelectric cells are arranged in M ​​rows and N columns, where M is an integer greater than 1 and N is a positive integer. The conductor assembly includes a first conductor, a second conductor and a third conductor. In each row of thermoelectric cells, the positive terminal of one thermoelectric cell is electrically connected to the negative terminal of the other thermoelectric cell via the first conductor; the positive terminal of the first thermoelectric cell in each row of adjacent cells is electrically connected via the second conductor; and the negative terminal of the last thermoelectric cell in each row of adjacent cells is electrically connected via the third conductor. The positive lead is electrically connected to the second conductor or the first thermoelectric cell in one of the rows of M thermoelectric cells, and the negative lead is electrically connected to the third conductor or the last thermoelectric cell in one of the rows of M thermoelectric cells.

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